shell/ev-view.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /* this file is part of evince, a gnome document viewer
   3  *
   4  *  Copyright (C) 2004 Red Hat, Inc
   5  *
   6  * Evince is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Evince is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include <stdlib.h>
  22 #include <math.h>
  23 #include <string.h>
  24 #include <gtk/gtkalignment.h>
  25 #include <glib/gi18n.h>
  26 #include <gtk/gtkbindings.h>
  27 #include <gtk/gtkselection.h>
  28 #include <gtk/gtkclipboard.h>
  29 #include <gdk/gdkkeysyms.h>
  30
  31 #include "ev-marshal.h"
  32 #include "ev-view.h"
  33 #include "ev-view-private.h"
  34 #include "ev-utils.h"
  35 #include "ev-selection.h"
  36 #include "ev-document-links.h"
  37 #include "ev-document-images.h"
  38 #include "ev-document-find.h"
  39 #include "ev-document-transition.h"
  40 #include "ev-document-forms.h"
  41 #include "ev-document-misc.h"
  42 #include "ev-job-queue.h"
  43 #include "ev-page-cache.h"
  44 #include "ev-pixbuf-cache.h"
  45 #include "ev-tooltip.h"
  46 #include "ev-application.h"
  47
  48 #define EV_VIEW_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
  49 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
  50 #define EV_VIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
  51
  52
  53 enum {
  54         PROP_0,
  55         PROP_STATUS,
  56         PROP_FIND_STATUS,
  57         PROP_CONTINUOUS,
  58         PROP_DUAL_PAGE,
  59         PROP_FULLSCREEN,
  60         PROP_PRESENTATION,
  61         PROP_SIZING_MODE,
  62         PROP_ZOOM,
  63         PROP_ROTATION,
  64         PROP_HAS_SELECTION,
  65 };
  66
  67 enum {
  68         SIGNAL_BINDING_ACTIVATED,
  69         SIGNAL_ZOOM_INVALID,
  70         SIGNAL_HANDLE_LINK,
  71         SIGNAL_EXTERNAL_LINK,
  72         SIGNAL_POPUP_MENU,
  73         N_SIGNALS,
  74 };
  75
  76 enum {
  77         TARGET_DND_URI,
  78         TARGET_DND_TEXT,
  79         TARGET_DND_IMAGE
  80 };
  81
  82 enum {
  83         TARGET_STRING,
  84         TARGET_TEXT,
  85         TARGET_COMPOUND_TEXT,
  86         TARGET_UTF8_STRING,
  87         TARGET_TEXT_BUFFER_CONTENTS
  88 };
  89
  90 static const GtkTargetEntry clipboard_targets[] = {
  91         { "STRING", 0, TARGET_STRING },
  92         { "TEXT",   0, TARGET_TEXT },
  93         { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
  94         { "UTF8_STRING", 0, TARGET_UTF8_STRING },
  95 };
  96
  97 static const GtkTargetEntry view_drop_targets[] = {
  98         { "text/uri-list", 0, 0 }
  99 };
 100
 101 static guint signals[N_SIGNALS];
 102
 103 typedef enum {
 104         EV_VIEW_FIND_NEXT,
 105         EV_VIEW_FIND_PREV
 106 } EvViewFindDirection;
 107
 108 #define ZOOM_IN_FACTOR  1.2
 109 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
 110
 111 #define MIN_SCALE 0.05409
 112 #define MAX_SCALE 4.0
 113
 114 #define SCROLL_TIME 150
 115
 116 /*** Scrolling ***/
 117 static void       scroll_to_current_page                     (EvView *view,
 118                                                               GtkOrientation orientation);
 119 static void       ev_view_set_scroll_adjustments             (GtkLayout          *layout,
 120                                                               GtkAdjustment      *hadjustment,
 121                                                               GtkAdjustment      *vadjustment);
 122 static void       view_update_range_and_current_page         (EvView             *view);
 123 static void       set_scroll_adjustment                      (EvView             *view,
 124                                                               GtkOrientation      orientation,
 125                                                               GtkAdjustment      *adjustment);
 126 static void       add_scroll_binding_keypad                  (GtkBindingSet      *binding_set,
 127                                                               guint               keyval,
 128                                                               GdkModifierType modifiers,
 129                                                               EvScrollType       scroll,
 130                                                               gboolean            horizontal);
 131 static void       ensure_rectangle_is_visible                (EvView             *view,
 132                                                               GdkRectangle       *rect);
 133
 134 /*** Geometry computations ***/
 135 static void       compute_border                             (EvView             *view,
 136                                                               int                 width,
 137                                                               int                 height,
 138                                                               GtkBorder          *border);
 139 static void       get_page_y_offset                          (EvView *view,
 140                                                               int page,
 141                                                               double zoom,
 142                                                               int *y_offset);
 143 static gboolean   get_page_extents                           (EvView             *view,
 144                                                               gint                page,
 145                                                               GdkRectangle       *page_area,
 146                                                               GtkBorder          *border);
 147 static void       view_rect_to_doc_rect                      (EvView             *view,
 148                                                               GdkRectangle       *view_rect,
 149                                                               GdkRectangle       *page_area,
 150                                                               EvRectangle        *doc_rect);
 151 static void       doc_rect_to_view_rect                      (EvView             *view,
 152                                                               int                 page,
 153                                                               EvRectangle        *doc_rect,
 154                                                               GdkRectangle       *view_rect);
 155 static void       find_page_at_location                      (EvView             *view,
 156                                                               gdouble             x,
 157                                                               gdouble             y,
 158                                                               gint               *page,
 159                                                               gint               *x_offset,
 160                                                               gint               *y_offset);
 161 static gboolean  doc_point_to_view_point                     (EvView             *view,
 162                                                               int                 page,
 163                                                               EvPoint            *doc_point,
 164                                                               GdkPoint           *view_point);
 165 /*** Hyperrefs ***/
 166 static EvLink *   ev_view_get_link_at_location               (EvView             *view,
 167                                                               gdouble             x,
 168                                                               gdouble             y);
 169 static char*      tip_from_link                              (EvView             *view,
 170                                                               EvLink             *link);
 171 /*** Forms ***/
 172 static EvFormField *ev_view_get_form_field_at_location       (EvView             *view,
 173                                                                gdouble            x,
 174                                                                gdouble            y);
 175
 176 /*** GtkWidget implementation ***/
 177 static void       ev_view_size_request_continuous_dual_page  (EvView             *view,
 178                                                               GtkRequisition     *requisition);
 179 static void       ev_view_size_request_continuous            (EvView             *view,
 180                                                               GtkRequisition     *requisition);
 181 static void       ev_view_size_request_dual_page             (EvView             *view,
 182                                                               GtkRequisition     *requisition);
 183 static void       ev_view_size_request_single_page           (EvView             *view,
 184                                                               GtkRequisition     *requisition);
 185 static void       ev_view_size_request                       (GtkWidget          *widget,
 186                                                               GtkRequisition     *requisition);
 187 static void       ev_view_size_allocate                      (GtkWidget          *widget,
 188                                                               GtkAllocation      *allocation);
 189 static void       ev_view_realize                            (GtkWidget          *widget);
 190 static gboolean   ev_view_scroll_event                       (GtkWidget          *widget,
 191                                                               GdkEventScroll     *event);
 192 static gboolean   ev_view_expose_event                       (GtkWidget          *widget,
 193                                                               GdkEventExpose     *event);
 194 static gboolean   ev_view_popup_menu                         (GtkWidget          *widget);
 195 static gboolean   ev_view_button_press_event                 (GtkWidget          *widget,
 196                                                               GdkEventButton     *event);
 197 static gboolean   ev_view_motion_notify_event                (GtkWidget          *widget,
 198                                                               GdkEventMotion     *event);
 199 static gboolean   ev_view_button_release_event               (GtkWidget          *widget,
 200                                                               GdkEventButton     *event);
 201 static gboolean   ev_view_enter_notify_event                 (GtkWidget          *widget,
 202                                                               GdkEventCrossing   *event);
 203 static gboolean   ev_view_leave_notify_event                 (GtkWidget          *widget,
 204                                                               GdkEventCrossing   *event);
 205 static void       ev_view_style_set                          (GtkWidget          *widget,
 206                                                               GtkStyle           *old_style);
 207 static void       ev_view_remove_all                         (EvView             *view);
 208
 209 static AtkObject *ev_view_get_accessible                     (GtkWidget *widget);
 210
 211 /*** Drawing ***/
 212 static guint32    ev_gdk_color_to_rgb                        (const GdkColor     *color);
 213 static void       draw_rubberband                            (GtkWidget          *widget,
 214                                                               GdkWindow          *window,
 215                                                               const GdkRectangle *rect,
 216                                                               guchar              alpha);
 217 static void       highlight_find_results                     (EvView             *view,
 218                                                               int                 page);
 219 static void       draw_one_page                              (EvView             *view,
 220                                                               gint                page,
 221                                                               GdkRectangle       *page_area,
 222                                                               GtkBorder          *border,
 223                                                               GdkRectangle       *expose_area,
 224                                                               gboolean           *page_ready);
 225 static void       draw_loading_text                          (EvView             *view,
 226                                                               GdkRectangle       *page_area,
 227                                                               GdkRectangle       *expose_area);
 228
 229 /*** Callbacks ***/
 230 static void       find_changed_cb                            (EvDocument         *document,
 231                                                               int                 page,
 232                                                               EvView             *view);
 233 static void       job_finished_cb                            (EvPixbufCache      *pixbuf_cache,
 234                                                               GdkRegion          *region,
 235                                                               EvView             *view);
 236 static void       page_changed_cb                            (EvPageCache        *page_cache,
 237                                                               int                 new_page,
 238                                                               EvView             *view);
 239 static void       on_adjustment_value_changed                (GtkAdjustment      *adjustment,
 240                                                               EvView             *view);
 241
 242 /*** GObject ***/
 243 static void       ev_view_finalize                           (GObject            *object);
 244 static void       ev_view_destroy                            (GtkObject          *object);
 245 static void       ev_view_set_property                       (GObject            *object,
 246                                                               guint               prop_id,
 247                                                               const GValue       *value,
 248                                                               GParamSpec         *pspec);
 249 static void       ev_view_get_property                       (GObject            *object,
 250                                                               guint               prop_id,
 251                                                               GValue             *value,
 252                                                               GParamSpec         *pspec);
 253 static void       ev_view_class_init                         (EvViewClass        *class);
 254 static void       ev_view_init                               (EvView             *view);
 255
 256 /*** Zoom and sizing ***/
 257 static double   zoom_for_size_fit_width                      (int doc_width,
 258                                                               int doc_height,
 259                                                               int target_width,
 260                                                               int target_height,
 261                                                               int vsb_width);
 262 static double   zoom_for_size_fit_height                     (int doc_width,
 263                                                               int doc_height,
 264                                                               int target_width,
 265                                                               int target_height,
 266                                                               int vsb_height);
 267 static double   zoom_for_size_best_fit                       (int doc_width,
 268                                                               int doc_height,
 269                                                               int target_width,
 270                                                               int target_height,
 271                                                               int vsb_width,
 272                                                               int hsb_width);
 273 static void     ev_view_zoom_for_size_presentation           (EvView *view,
 274                                                               int     width,
 275                                                               int     height);
 276 static void     ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
 277                                                                 int     width,
 278                                                                 int     height,
 279                                                                 int     vsb_width,
 280                                                                 int     hsb_height);
 281 static void     ev_view_zoom_for_size_continuous               (EvView *view,
 282                                                                 int     width,
 283                                                                 int     height,
 284                                                                 int     vsb_width,
 285                                                                 int     hsb_height);
 286 static void     ev_view_zoom_for_size_dual_page                (EvView *view,
 287                                                                 int     width,
 288                                                                 int     height,
 289                                                                 int     vsb_width,
 290                                                                 int     hsb_height);
 291 static void     ev_view_zoom_for_size_single_page              (EvView *view,
 292                                                                 int     width,
 293                                                                 int     height,
 294                                                                 int     vsb_width,
 295                                                                 int     hsb_height);
 296 /*** Cursors ***/
 297 static GdkCursor* ev_view_create_invisible_cursor            (void);
 298 static void       ev_view_set_cursor                         (EvView             *view,
 299                                                               EvViewCursor        new_cursor);
 300 static void       ev_view_handle_cursor_over_xy              (EvView *view,
 301                                                               gint x,
 302                                                               gint y);
 303
 304 /*** Status messages ***/
 305 static void       ev_view_set_status                         (EvView             *view,
 306                                                               const char         *message);
 307 static void       update_find_status_message                 (EvView             *view,
 308                                                               gboolean            this_page);
 309 static void       ev_view_set_find_status                    (EvView             *view,
 310                                                               const char         *message);
 311 /*** Find ***/
 312 static void       jump_to_find_result                        (EvView             *view);
 313 static void       jump_to_find_page                          (EvView             *view,
 314                                                               EvViewFindDirection direction,
 315                                                               gint                shift);
 316
 317 /*** Selection ***/
 318 static void       compute_selections                         (EvView             *view,
 319                                                               GdkPoint           *start,
 320                                                               GdkPoint           *stop);
 321 static void       clear_selection                            (EvView             *view);
 322 static void       selection_free                             (EvViewSelection    *selection);
 323 static char*      get_selected_text                          (EvView             *ev_view);
 324 static void       ev_view_primary_get_cb                     (GtkClipboard       *clipboard,
 325                                                               GtkSelectionData   *selection_data,
 326                                                               guint               info,
 327                                                               gpointer            data);
 328 static void       ev_view_primary_clear_cb                   (GtkClipboard       *clipboard,
 329                                                               gpointer            data);
 330 static void       ev_view_update_primary_selection           (EvView             *ev_view);
 331
 332 /*** Presentation ***/
 333 static void       ev_view_presentation_transition_start      (EvView             *ev_view);
 334 static void       ev_view_presentation_transition_stop       (EvView             *ev_view);
 335
 336
 337 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_LAYOUT)
 338
 339 static void
 340 scroll_to_current_page (EvView *view, GtkOrientation orientation)
 341 {
 342         GdkPoint view_point;
 343
 344         if (view->document == NULL) {
 345                 return;
 346         }
 347
 348         doc_point_to_view_point (view, view->current_page, &view->pending_point, &view_point);
 349
 350         if (orientation == GTK_ORIENTATION_VERTICAL) {
 351                 view->pending_point.y = 0;
 352         } else {
 353                 view->pending_point.x = 0;
 354         }
 355
 356         if (orientation == GTK_ORIENTATION_VERTICAL) {
 357                 if (view->continuous) {
 358                         gtk_adjustment_clamp_page (view->vadjustment,
 359                                                    view_point.y - view->spacing / 2,
 360                                                    view_point.y + view->vadjustment->page_size);
 361                 } else {
 362                         gtk_adjustment_set_value (view->vadjustment,
 363                                                   CLAMP (view_point.y,
 364                                                   view->vadjustment->lower,
 365                                                   view->vadjustment->upper -
 366                                                   view->vadjustment->page_size));
 367                 }
 368         } else {
 369                 if (view->dual_page) {
 370                         gtk_adjustment_clamp_page (view->hadjustment,
 371                                                    view_point.x,
 372                                                    view_point.x + view->hadjustment->page_size);
 373                 } else {
 374                         gtk_adjustment_set_value (view->hadjustment,
 375                                                   CLAMP (view_point.x,
 376                                                   view->hadjustment->lower,
 377                                                   view->hadjustment->upper -
 378                                                   view->hadjustment->page_size));
 379                 }
 380         }
 381 }
 382
 383 static void
 384 view_set_adjustment_values (EvView         *view,
 385                             GtkOrientation  orientation)
 386 {
 387         GtkWidget *widget = GTK_WIDGET (view);
 388         GtkAdjustment *adjustment;
 389         int requisition;
 390         int allocation;
 391
 392         double factor;
 393         gint new_value;
 394
 395         if (orientation == GTK_ORIENTATION_HORIZONTAL)  {
 396                 requisition = widget->requisition.width;
 397                 allocation = widget->allocation.width;
 398                 adjustment = view->hadjustment;
 399         } else {
 400                 requisition = widget->requisition.height;
 401                 allocation = widget->allocation.height;
 402                 adjustment = view->vadjustment;
 403         }
 404
 405         if (!adjustment)
 406                 return;
 407
 408         factor = 1.0;
 409         switch (view->pending_scroll) {
 410                 case SCROLL_TO_KEEP_POSITION:
 411                 case SCROLL_TO_FIND_LOCATION:
 412                         factor = (adjustment->value) / adjustment->upper;
 413                         break;
 414                 case SCROLL_TO_PAGE_POSITION:
 415                         break;
 416                 case SCROLL_TO_CENTER:
 417                         factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
 418                         break;
 419         }
 420
 421         adjustment->page_size = allocation;
 422         adjustment->step_increment = allocation * 0.1;
 423         adjustment->page_increment = allocation * 0.9;
 424         adjustment->lower = 0;
 425         adjustment->upper = MAX (allocation, requisition);
 426
 427         /*
 428          * We add 0.5 to the values before to average out our rounding errors.
 429          */
 430         switch (view->pending_scroll) {
 431                 case SCROLL_TO_KEEP_POSITION:
 432                 case SCROLL_TO_FIND_LOCATION:
 433                         new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
 434                         gtk_adjustment_set_value (adjustment, (int)new_value);
 435                         break;
 436                 case SCROLL_TO_PAGE_POSITION:
 437                         scroll_to_current_page (view, orientation);
 438                         break;
 439                 case SCROLL_TO_CENTER:
 440                         new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
 441                                            0, adjustment->upper - adjustment->page_size);
 442                         gtk_adjustment_set_value (adjustment, (int)new_value);
 443                         break;
 444         }
 445
 446         gtk_adjustment_changed (adjustment);
 447 }
 448
 449 static void
 450 view_update_range_and_current_page (EvView *view)
 451 {
 452         gint current_page;
 453         gint best_current_page = -1;
 454
 455         /* Presentation trumps all other modes */
 456         if (view->presentation) {
 457                 view->start_page = view->current_page;
 458                 view->end_page = view->current_page;
 459         } else if (view->continuous) {
 460                 GdkRectangle current_area, unused, page_area;
 461                 GtkBorder border;
 462                 gboolean found = FALSE;
 463                 gint area_max = -1, area;
 464                 int i;
 465
 466                 if (!(view->vadjustment && view->hadjustment))
 467                         return;
 468
 469                 current_area.x = view->hadjustment->value;
 470                 current_area.width = view->hadjustment->upper;
 471                 current_area.y = view->vadjustment->value;
 472                 current_area.height = view->vadjustment->page_size;
 473
 474                 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
 475
 476                         get_page_extents (view, i, &page_area, &border);
 477
 478                         if (gdk_rectangle_intersect (&current_area, &page_area, &unused)) {
 479                                 area = unused.width * unused.height;
 480
 481                                 if (!found) {
 482                                         area_max = area;
 483                                         view->start_page = i;
 484                                         found = TRUE;
 485                                         best_current_page = i;
 486                                 }
 487                                 if (area > area_max) {
 488                                         best_current_page = (area == area_max) ? MIN (i, best_current_page) : i;
 489                                         area_max = area;
 490                                 }
 491
 492                                 view->end_page = i;
 493                         } else if (found) {
 494                                 break;
 495                         }
 496                 }
 497
 498         } else if (view->dual_page) {
 499                 if (view->current_page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) {
 500                         view->start_page = view->current_page;
 501                         if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
 502                                 view->end_page = view->start_page + 1;
 503                         else
 504                                 view->end_page = view->start_page;
 505                 } else {
 506                         if (view->current_page < 1)
 507                                 view->start_page = view->current_page;
 508                         else
 509                                 view->start_page = view->current_page - 1;
 510                         view->end_page = view->current_page;
 511                 }
 512         } else {
 513                 view->start_page = view->current_page;
 514                 view->end_page = view->current_page;
 515         }
 516
 517         best_current_page = MAX (best_current_page, view->start_page);
 518         current_page = ev_page_cache_get_current_page (view->page_cache);
 519
 520         if ((current_page != best_current_page) && (view->pending_scroll == SCROLL_TO_KEEP_POSITION)) {
 521                 view->current_page = best_current_page;
 522                 ev_page_cache_set_current_page (view->page_cache, best_current_page);
 523         }
 524
 525         ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
 526                                         view->start_page,
 527                                         view->end_page,
 528                                         view->rotation,
 529                                         view->scale,
 530                                         view->selection_info.selections);
 531 }
 532
 533 static void
 534 set_scroll_adjustment (EvView *view,
 535                        GtkOrientation  orientation,
 536                        GtkAdjustment  *adjustment)
 537 {
 538         GtkAdjustment **to_set;
 539
 540         if (orientation == GTK_ORIENTATION_HORIZONTAL)
 541                 to_set = &view->hadjustment;
 542         else
 543                 to_set = &view->vadjustment;
 544
 545         if (*to_set != adjustment) {
 546                 if (*to_set) {
 547                         g_signal_handlers_disconnect_by_func (*to_set,
 548                                                               (gpointer) on_adjustment_value_changed,
 549                                                               view);
 550                         g_object_unref (*to_set);
 551                 }
 552
 553                 *to_set = adjustment;
 554                 view_set_adjustment_values (view, orientation);
 555
 556                 if (*to_set) {
 557                         g_object_ref (*to_set);
 558                         g_signal_connect (*to_set, "value_changed",
 559                                           G_CALLBACK (on_adjustment_value_changed), view);
 560                 }
 561         }
 562 }
 563
 564 static void
 565 ev_view_set_scroll_adjustments (GtkLayout      *layout,
 566                                 GtkAdjustment  *hadjustment,
 567                                 GtkAdjustment  *vadjustment)
 568 {
 569         EvView *view = EV_VIEW (layout);
 570
 571         set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
 572         set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
 573
 574         on_adjustment_value_changed (NULL, view);
 575 }
 576
 577 static void
 578 add_scroll_binding_keypad (GtkBindingSet  *binding_set,
 579                            guint           keyval,
 580                            GdkModifierType modifiers,
 581                            EvScrollType    scroll,
 582                            gboolean        horizontal)
 583 {
 584   guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
 585
 586   gtk_binding_entry_add_signal (binding_set, keyval, modifiers,
 587                                 "binding_activated", 2,
 588                                 EV_TYPE_SCROLL_TYPE, scroll,
 589                                 G_TYPE_BOOLEAN, horizontal);
 590   gtk_binding_entry_add_signal (binding_set, keypad_keyval, modifiers,
 591                                 "binding_activated", 2,
 592                                 EV_TYPE_SCROLL_TYPE, scroll,
 593                                 G_TYPE_BOOLEAN, horizontal);
 594 }
 595
 596 void
 597 ev_view_scroll (EvView        *view,
 598                 EvScrollType   scroll,
 599                 gboolean horizontal)
 600 {
 601         GtkAdjustment *adjustment;
 602         double value, increment;
 603         gboolean first_page = FALSE;
 604         gboolean last_page = FALSE;
 605
 606         view->jump_to_find_result = FALSE;
 607
 608         if (view->presentation || view->sizing_mode == EV_SIZING_BEST_FIT) {
 609                 switch (scroll) {
 610                         case EV_SCROLL_PAGE_BACKWARD:
 611                         case EV_SCROLL_STEP_BACKWARD:
 612                                 ev_view_previous_page (view);
 613                                 break;
 614                         case EV_SCROLL_PAGE_FORWARD:
 615                         case EV_SCROLL_STEP_FORWARD:
 616                                 ev_view_next_page (view);
 617                                 break;
 618                         default:
 619                                 break;
 620                 }
 621                 return;
 622         }
 623
 624         /* Assign values for increment and vertical adjustment */
 625         adjustment = horizontal ? view->hadjustment : view->vadjustment;
 626         increment = adjustment->page_size * 0.75;
 627         value = adjustment->value;
 628
 629         /* Assign boolean for first and last page */
 630         if (view->current_page == 0)
 631                 first_page = TRUE;
 632         if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
 633                 last_page = TRUE;
 634
 635         switch (scroll) {
 636                 case EV_SCROLL_PAGE_BACKWARD:
 637                         /* Do not jump backwards if at the first page */
 638                         if (value == (adjustment->lower) && first_page) {
 639                                 /* Do nothing */
 640                                 /* At the top of a page, assign the upper bound limit of previous page */
 641                         } else if (value == (adjustment->lower)) {
 642                                 value = adjustment->upper - adjustment->page_size;
 643                                 ev_view_previous_page (view);
 644                                 /* Jump to the top */
 645                         } else {
 646                                 value = MAX (value - increment, adjustment->lower);
 647                         }
 648                         break;
 649                 case EV_SCROLL_PAGE_FORWARD:
 650                         /* Do not jump forward if at the last page */
 651                         if (value == (adjustment->upper - adjustment->page_size) && last_page) {
 652                                 /* Do nothing */
 653                         /* At the bottom of a page, assign the lower bound limit of next page */
 654                         } else if (value == (adjustment->upper - adjustment->page_size)) {
 655                                 value = 0;
 656                                 ev_view_next_page (view);
 657                         /* Jump to the bottom */
 658                         } else {
 659                                 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
 660                         }
 661                         break;
 662                 case EV_SCROLL_STEP_BACKWARD:
 663                         value -= adjustment->step_increment;
 664                         break;
 665                 case EV_SCROLL_STEP_FORWARD:
 666                         value += adjustment->step_increment;
 667                         break;
 668                 case EV_SCROLL_STEP_DOWN:
 669                         value -= adjustment->step_increment / 10;
 670                         break;
 671                 case EV_SCROLL_STEP_UP:
 672                         value += adjustment->step_increment / 10;
 673                         break;
 674                 default:
 675                         break;
 676         }
 677
 678         value = CLAMP (value, adjustment->lower,
 679                        adjustment->upper - adjustment->page_size);
 680
 681         gtk_adjustment_set_value (adjustment, value);
 682 }
 683
 684 #define MARGIN 5
 685
 686 static void
 687 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
 688 {
 689         GtkWidget *widget = GTK_WIDGET (view);
 690         GtkAdjustment *adjustment;
 691         int value;
 692
 693         view->pending_scroll = SCROLL_TO_FIND_LOCATION;
 694
 695         adjustment = view->vadjustment;
 696
 697         if (rect->y < adjustment->value) {
 698                 value = MAX (adjustment->lower, rect->y - MARGIN);
 699                 gtk_adjustment_set_value (view->vadjustment, value);
 700         } else if (rect->y + rect->height >
 701                    adjustment->value + widget->allocation.height) {
 702                 value = MIN (adjustment->upper, rect->y + rect->height -
 703                              widget->allocation.height + MARGIN);
 704                 gtk_adjustment_set_value (view->vadjustment, value);
 705         }
 706
 707         adjustment = view->hadjustment;
 708
 709         if (rect->x < adjustment->value) {
 710                 value = MAX (adjustment->lower, rect->x - MARGIN);
 711                 gtk_adjustment_set_value (view->hadjustment, value);
 712         } else if (rect->x + rect->height >
 713                    adjustment->value + widget->allocation.width) {
 714                 value = MIN (adjustment->upper, rect->x + rect->width -
 715                              widget->allocation.width + MARGIN);
 716                 gtk_adjustment_set_value (view->hadjustment, value);
 717         }
 718
 719         gtk_widget_queue_resize (GTK_WIDGET (view));
 720 }
 721
 722 /*** Geometry computations ***/
 723
 724 static void
 725 compute_border (EvView *view, int width, int height, GtkBorder *border)
 726 {
 727         if (view->presentation) {
 728                 border->left = 0;
 729                 border->right = 0;
 730                 border->top = 0;
 731                 border->bottom = 0;
 732         } else {
 733                 ev_document_misc_get_page_border_size (width, height, border);
 734         }
 735 }
 736
 737 static void
 738 get_page_y_offset (EvView *view, int page, double zoom, int *y_offset)
 739 {
 740         int max_width, offset;
 741         GtkBorder border;
 742
 743         g_return_if_fail (y_offset != NULL);
 744
 745         ev_page_cache_get_max_width (view->page_cache, view->rotation, zoom, &max_width);
 746
 747         compute_border (view, max_width, max_width, &border);
 748
 749         if (view->dual_page) {
 750                 ev_page_cache_get_height_to_page (view->page_cache, page,
 751                                                   view->rotation, zoom, NULL, &offset);
 752                 offset += ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 + 1) * view->spacing + ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 ) * (border.top + border.bottom);
 753         } else {
 754                 ev_page_cache_get_height_to_page (view->page_cache, page,
 755                                                   view->rotation, zoom, &offset, NULL);
 756                 offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
 757         }
 758
 759         *y_offset = offset;
 760         return;
 761 }
 762
 763 static gboolean
 764 get_page_extents (EvView       *view,
 765                   gint          page,
 766                   GdkRectangle *page_area,
 767                   GtkBorder    *border)
 768 {
 769         GtkWidget *widget;
 770         int width, height;
 771
 772         widget = GTK_WIDGET (view);
 773
 774         /* Get the size of the page */
 775         ev_page_cache_get_size (view->page_cache, page,
 776                                 view->rotation,
 777                                 view->scale,
 778                                 &width, &height);
 779         compute_border (view, width, height, border);
 780         page_area->width = width + border->left + border->right;
 781         page_area->height = height + border->top + border->bottom;
 782
 783         if (view->presentation) {
 784                 page_area->x = (MAX (0, widget->allocation.width - width))/2;
 785                 page_area->y = (MAX (0, widget->allocation.height - height))/2;
 786         } else if (view->continuous) {
 787                 gint max_width;
 788                 gint x, y;
 789
 790                 ev_page_cache_get_max_width (view->page_cache, view->rotation,
 791                                              view->scale, &max_width);
 792                 max_width = max_width + border->left + border->right;
 793                 /* Get the location of the bounding box */
 794                 if (view->dual_page) {
 795                         x = view->spacing + ((page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? 0 : 1) * (max_width + view->spacing);
 796                         x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
 797                         if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache))
 798                                 x = x + (max_width - width - border->left - border->right);
 799                 } else {
 800                         x = view->spacing;
 801                         x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
 802                 }
 803
 804                 get_page_y_offset (view, page, view->scale, &y);
 805
 806                 page_area->x = x;
 807                 page_area->y = y;
 808         } else {
 809                 gint x, y;
 810                 if (view->dual_page) {
 811                         gint width_2, height_2;
 812                         gint max_width = width;
 813                         gint max_height = height;
 814                         GtkBorder overall_border;
 815                         gint other_page;
 816
 817                         other_page = (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? page + 1: page - 1;
 818
 819                         /* First, we get the bounding box of the two pages */
 820                         if (other_page < ev_page_cache_get_n_pages (view->page_cache)
 821                             && (0 <= other_page)) {
 822                                 ev_page_cache_get_size (view->page_cache,
 823                                                         other_page,
 824                                                         view->rotation,
 825                                                         view->scale,
 826                                                         &width_2, &height_2);
 827                                 if (width_2 > width)
 828                                         max_width = width_2;
 829                                 if (height_2 > height)
 830                                         max_height = height_2;
 831                         }
 832                         compute_border (view, max_width, max_height, &overall_border);
 833
 834                         /* Find the offsets */
 835                         x = view->spacing;
 836                         y = view->spacing;
 837
 838                         /* Adjust for being the left or right page */
 839                         if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache))
 840                                 x = x + max_width - width;
 841                         else
 842                                 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
 843
 844                         y = y + (max_height - height)/2;
 845
 846                         /* Adjust for extra allocation */
 847                         x = x + MAX (0, widget->allocation.width -
 848                                      ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
 849                         y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
 850                 } else {
 851                         x = view->spacing;
 852                         y = view->spacing;
 853
 854                         /* Adjust for extra allocation */
 855                         x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
 856                         y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom +  view->spacing * 2))/2;
 857                 }
 858
 859                 page_area->x = x;
 860                 page_area->y = y;
 861         }
 862
 863         return TRUE;
 864 }
 865
 866 static void
 867 view_point_to_doc_point (EvView *view,
 868                          GdkPoint *view_point,
 869                          GdkRectangle *page_area,
 870                          double  *doc_point_x,
 871                          double  *doc_point_y)
 872 {
 873         *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
 874         *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
 875 }
 876
 877 static void
 878 view_rect_to_doc_rect (EvView *view,
 879                        GdkRectangle *view_rect,
 880                        GdkRectangle *page_area,
 881                        EvRectangle  *doc_rect)
 882 {
 883         doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
 884         doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
 885         doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
 886         doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
 887 }
 888
 889 static gboolean
 890 doc_point_to_view_point (EvView       *view,
 891                          int           page,
 892                          EvPoint      *doc_point,
 893                          GdkPoint     *view_point)
 894 {
 895         GdkRectangle page_area;
 896         GtkBorder border;
 897         double x, y, view_x, view_y;
 898         int width, height;
 899
 900         ev_page_cache_get_size (view->page_cache, page,
 901                                 view->rotation,
 902                                 1.0,
 903                                 &width, &height);
 904
 905         if (view->rotation == 0) {
 906                 x = doc_point->x;
 907                 y = doc_point->y;
 908         } else if (view->rotation == 90) {
 909                 x = width - doc_point->y;
 910                 y = doc_point->x;
 911         } else if (view->rotation == 180) {
 912                 x = width - doc_point->x;
 913                 y = height - doc_point->y;
 914         } else if (view->rotation == 270) {
 915                 x = doc_point->y;
 916                 y = height - doc_point->x;
 917         } else {
 918                 g_assert_not_reached ();
 919         }
 920
 921         get_page_extents (view, page, &page_area, &border);
 922
 923         view_x = x * view->scale;
 924         view_y = y * view->scale;
 925         view_point->x = view_x + page_area.x;
 926         view_point->y = view_y + page_area.y;
 927
 928         return (view_x > 0 && view_x <= page_area.width &&
 929                 view_y > 0 && view_y <= page_area.height);
 930 }
 931
 932 static void
 933 doc_rect_to_view_rect (EvView       *view,
 934                        int           page,
 935                        EvRectangle  *doc_rect,
 936                        GdkRectangle *view_rect)
 937 {
 938         GdkRectangle page_area;
 939         GtkBorder border;
 940         double x, y, w, h;
 941         int width, height;
 942
 943         ev_page_cache_get_size (view->page_cache, page,
 944                                 view->rotation,
 945                                 1.0,
 946                                 &width, &height);
 947
 948         if (view->rotation == 0) {
 949                 x = doc_rect->x1;
 950                 y = doc_rect->y1;
 951                 w = doc_rect->x2 - doc_rect->x1;
 952                 h = doc_rect->y2 - doc_rect->y1;
 953         } else if (view->rotation == 90) {
 954                 x = width - doc_rect->y2;
 955                 y = doc_rect->x1;
 956                 w = doc_rect->y2 - doc_rect->y1;
 957                 h = doc_rect->x2 - doc_rect->x1;
 958         } else if (view->rotation == 180) {
 959                 x = width - doc_rect->x2;
 960                 y = height - doc_rect->y2;
 961                 w = doc_rect->x2 - doc_rect->x1;
 962                 h = doc_rect->y2 - doc_rect->y1;
 963         } else if (view->rotation == 270) {
 964                 x = doc_rect->y1;
 965                 y = height - doc_rect->x2;
 966                 w = doc_rect->y2 - doc_rect->y1;
 967                 h = doc_rect->x2 - doc_rect->x1;
 968         } else {
 969                 g_assert_not_reached ();
 970         }
 971
 972         get_page_extents (view, page, &page_area, &border);
 973
 974         view_rect->x = x * view->scale + page_area.x;
 975         view_rect->y = y * view->scale + page_area.y;
 976         view_rect->width = w * view->scale;
 977         view_rect->height = h * view->scale;
 978 }
 979
 980 static void
 981 find_page_at_location (EvView  *view,
 982                        gdouble  x,
 983                        gdouble  y,
 984                        gint    *page,
 985                        gint    *x_offset,
 986                        gint    *y_offset)
 987 {
 988         int i;
 989
 990         if (view->document == NULL)
 991                 return;
 992
 993         g_assert (page);
 994         g_assert (x_offset);
 995         g_assert (y_offset);
 996
 997         for (i = view->start_page; i <= view->end_page; i++) {
 998                 GdkRectangle page_area;
 999                 GtkBorder border;
1000
1001                 if (! get_page_extents (view, i, &page_area, &border))
1002                         continue;
1003
1004                 if ((x >= page_area.x + border.left) &&
1005                     (x < page_area.x + page_area.width - border.right) &&
1006                     (y >= page_area.y + border.top) &&
1007                     (y < page_area.y + page_area.height - border.bottom)) {
1008                         *page = i;
1009                         *x_offset = x - (page_area.x + border.left);
1010                         *y_offset = y - (page_area.y + border.top);
1011                         return;
1012                 }
1013         }
1014
1015         *page = -1;
1016 }
1017
1018 static gboolean
1019 location_in_text (EvView  *view,
1020                   gdouble  x,
1021                   gdouble  y)
1022 {
1023         GdkRegion *region;
1024         gint page = -1;
1025         gint x_offset = 0, y_offset = 0;
1026
1027         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1028
1029         if (page == -1)
1030                 return FALSE;
1031
1032         region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
1033
1034         if (region)
1035                 return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
1036         else
1037                 return FALSE;
1038 }
1039
1040 static int
1041 ev_view_get_width (EvView *view)
1042 {
1043         return GTK_WIDGET (view)->allocation.width;
1044 }
1045
1046 static int
1047 ev_view_get_height (EvView *view)
1048 {
1049         return GTK_WIDGET (view)->allocation.height;
1050 }
1051
1052 static gboolean
1053 location_in_selected_text (EvView  *view,
1054                            gdouble  x,
1055                            gdouble  y)
1056 {
1057         gint page = -1;
1058         gint x_offset = 0, y_offset = 0;
1059         EvViewSelection *selection;
1060         GList *l = NULL;
1061
1062         for (l = view->selection_info.selections; l != NULL; l = l->next) {
1063                 selection = (EvViewSelection *)l->data;
1064
1065                 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1066
1067                 if (page != selection->page)
1068                         continue;
1069
1070                 if (selection->covered_region &&
1071                     gdk_region_point_in (selection->covered_region, x_offset, y_offset))
1072                         return TRUE;
1073         }
1074
1075         return FALSE;
1076 }
1077
1078 static gboolean
1079 get_doc_point_from_offset (EvView *view,
1080                            gint    page,
1081                            gint    x_offset,
1082                            gint    y_offset,
1083                            gint   *x_new,
1084                            gint   *y_new)
1085 {
1086         int width, height;
1087         double x, y;
1088
1089         ev_page_cache_get_size (view->page_cache, page,
1090                                 view->rotation,
1091                                 1.0,
1092                                 &width, &height);
1093
1094         x_offset = x_offset / view->scale;
1095         y_offset = y_offset / view->scale;
1096
1097         if (view->rotation == 0) {
1098                 x = x_offset;
1099                 y = y_offset;
1100         } else if (view->rotation == 90) {
1101                 x = y_offset;
1102                 y = width - x_offset;
1103         } else if (view->rotation == 180) {
1104                 x = width - x_offset;
1105                 y = height - y_offset;
1106         } else if (view->rotation == 270) {
1107                 x = height - y_offset;
1108                 y = x_offset;
1109         } else {
1110                 g_assert_not_reached ();
1111         }
1112
1113         *x_new = x;
1114         *y_new = y;
1115
1116         return TRUE;
1117 }
1118
1119 /*** Hyperref ***/
1120 static EvLink *
1121 ev_view_get_link_at_location (EvView  *view,
1122                               gdouble  x,
1123                               gdouble  y)
1124 {
1125         gint page = -1;
1126         gint x_offset = 0, y_offset = 0;
1127         gint x_new = 0, y_new = 0;
1128         GList *link_mapping;
1129
1130         if (!EV_IS_DOCUMENT_LINKS (view->document))
1131                 return NULL;
1132
1133         x += view->scroll_x;
1134         y += view->scroll_y;
1135
1136         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1137
1138         if (page == -1)
1139                 return NULL;
1140
1141
1142         if (get_doc_point_from_offset (view, page, x_offset,
1143                                        y_offset, &x_new, &y_new) == FALSE)
1144                 return NULL;
1145
1146         link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
1147
1148         if (link_mapping)
1149                 return ev_link_mapping_find (link_mapping, x_new, y_new);
1150         else
1151                 return NULL;
1152 }
1153
1154 static void
1155 goto_fitr_dest (EvView *view, EvLinkDest *dest)
1156 {
1157         EvPoint doc_point;
1158         double zoom;
1159
1160         zoom = zoom_for_size_best_fit (ev_link_dest_get_right (dest) - ev_link_dest_get_left (dest),
1161                                        ev_link_dest_get_bottom (dest) - ev_link_dest_get_top (dest),
1162                                        ev_view_get_width (view),
1163                                        ev_view_get_height (view), 0, 0);
1164
1165         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1166         ev_view_set_zoom (view, zoom, FALSE);
1167
1168         doc_point.x = ev_link_dest_get_left (dest);
1169         doc_point.y = ev_link_dest_get_top (dest);
1170
1171         view->current_page = ev_link_dest_get_page (dest);
1172         view->pending_point = doc_point;
1173         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1174
1175         gtk_widget_queue_resize (GTK_WIDGET (view));
1176 }
1177
1178 static void
1179 goto_fitv_dest (EvView *view, EvLinkDest *dest)
1180 {
1181         EvPoint doc_point;
1182         int doc_width, doc_height, page;
1183         double zoom;
1184
1185         page = ev_link_dest_get_page (dest);
1186         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1187
1188         doc_point.x = ev_link_dest_get_left (dest);
1189         doc_point.y = 0;
1190
1191         zoom = zoom_for_size_fit_height (doc_width - doc_point.x , doc_height,
1192                                          ev_view_get_width (view),
1193                                          ev_view_get_height (view), 0);
1194
1195         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1196         ev_view_set_zoom (view, zoom, FALSE);
1197
1198         view->current_page = page;
1199         view->pending_point = doc_point;
1200         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1201
1202         gtk_widget_queue_resize (GTK_WIDGET (view));
1203 }
1204
1205 static void
1206 goto_fith_dest (EvView *view, EvLinkDest *dest)
1207 {
1208         EvPoint doc_point;
1209         int doc_width, doc_height, page;
1210         double zoom;
1211
1212         page = ev_link_dest_get_page (dest);
1213         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1214
1215         doc_point.x = 0;
1216         doc_point.y = ev_link_dest_get_top (dest);
1217
1218         zoom = zoom_for_size_fit_width (doc_width, ev_link_dest_get_top (dest),
1219                                         ev_view_get_width (view),
1220                                         ev_view_get_height (view), 0);
1221
1222         ev_view_set_sizing_mode (view, EV_SIZING_FIT_WIDTH);
1223         ev_view_set_zoom (view, zoom, FALSE);
1224
1225         view->current_page = page;
1226         view->pending_point = doc_point;
1227         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1228
1229         gtk_widget_queue_resize (GTK_WIDGET (view));
1230 }
1231
1232 static void
1233 goto_fit_dest (EvView *view, EvLinkDest *dest)
1234 {
1235         double zoom;
1236         int doc_width, doc_height;
1237         int page;
1238
1239         page = ev_link_dest_get_page (dest);
1240         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1241
1242         zoom = zoom_for_size_best_fit (doc_width, doc_height, ev_view_get_width (view),
1243                                        ev_view_get_height (view), 0, 0);
1244
1245         ev_view_set_sizing_mode (view, EV_SIZING_BEST_FIT);
1246         ev_view_set_zoom (view, zoom, FALSE);
1247
1248         view->current_page = page;
1249         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1250
1251         gtk_widget_queue_resize (GTK_WIDGET (view));
1252 }
1253
1254 static void
1255 goto_xyz_dest (EvView *view, EvLinkDest *dest)
1256 {
1257         EvPoint doc_point;
1258         gint page;
1259         double zoom;
1260
1261         zoom = ev_link_dest_get_zoom (dest);
1262         page = ev_link_dest_get_page (dest);
1263
1264         if (zoom > 1) {
1265                 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1266                 ev_view_set_zoom (view, zoom, FALSE);
1267         }
1268
1269         doc_point.x = ev_link_dest_get_left (dest);
1270         doc_point.y = ev_link_dest_get_top (dest);
1271
1272         view->current_page = page;
1273         view->pending_point = doc_point;
1274         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1275
1276         gtk_widget_queue_resize (GTK_WIDGET (view));
1277 }
1278
1279 static void
1280 goto_dest (EvView *view, EvLinkDest *dest)
1281 {
1282         EvLinkDestType type;
1283         int page, n_pages, current_page;
1284
1285         page = ev_link_dest_get_page (dest);
1286         n_pages = ev_page_cache_get_n_pages (view->page_cache);
1287
1288         if (page < 0 || page >= n_pages)
1289                 return;
1290
1291         current_page = view->current_page;
1292
1293         type = ev_link_dest_get_dest_type (dest);
1294
1295         switch (type) {
1296                 case EV_LINK_DEST_TYPE_PAGE:
1297                         ev_page_cache_set_current_page (view->page_cache, page);
1298                         break;
1299                 case EV_LINK_DEST_TYPE_FIT:
1300                         goto_fit_dest (view, dest);
1301                         break;
1302                 case EV_LINK_DEST_TYPE_FITH:
1303                         goto_fith_dest (view, dest);
1304                         break;
1305                 case EV_LINK_DEST_TYPE_FITV:
1306                         goto_fitv_dest (view, dest);
1307                         break;
1308                 case EV_LINK_DEST_TYPE_FITR:
1309                         goto_fitr_dest (view, dest);
1310                         break;
1311                 case EV_LINK_DEST_TYPE_XYZ:
1312                         goto_xyz_dest (view, dest);
1313                         break;
1314                 case EV_LINK_DEST_TYPE_PAGE_LABEL:
1315                         ev_page_cache_set_page_label (view->page_cache, ev_link_dest_get_page_label (dest));
1316                         break;
1317                 default:
1318                         g_assert_not_reached ();
1319         }
1320
1321         if (current_page != view->current_page)
1322                 ev_page_cache_set_current_page (view->page_cache,
1323                                                 view->current_page);
1324 }
1325
1326 static void
1327 ev_view_goto_dest (EvView *view, EvLinkDest *dest)
1328 {
1329         EvLinkDestType type;
1330
1331         type = ev_link_dest_get_dest_type (dest);
1332
1333         if (type == EV_LINK_DEST_TYPE_NAMED) {
1334                 EvLinkDest  *dest2;
1335                 const gchar *named_dest;
1336
1337                 named_dest = ev_link_dest_get_named_dest (dest);
1338                 dest2 = ev_document_links_find_link_dest (EV_DOCUMENT_LINKS (view->document),
1339                                                           named_dest);
1340                 if (dest2) {
1341                         goto_dest (view, dest2);
1342                         g_object_unref (dest2);
1343                 }
1344
1345                 return;
1346         }
1347
1348         goto_dest (view, dest);
1349 }
1350
1351 void
1352 ev_view_handle_link (EvView *view, EvLink *link)
1353 {
1354         EvLinkAction    *action = NULL;
1355         EvLinkActionType type;
1356
1357         action = ev_link_get_action (link);
1358         if (!action)
1359                 return;
1360
1361         type = ev_link_action_get_action_type (action);
1362
1363         switch (type) {
1364                 case EV_LINK_ACTION_TYPE_GOTO_DEST: {
1365                         EvLinkDest *dest;
1366
1367                         g_signal_emit (view, signals[SIGNAL_HANDLE_LINK], 0, link);
1368
1369                         dest = ev_link_action_get_dest (action);
1370                         ev_view_goto_dest (view, dest);
1371                 }
1372                         break;
1373                 case EV_LINK_ACTION_TYPE_GOTO_REMOTE:
1374                 case EV_LINK_ACTION_TYPE_EXTERNAL_URI:
1375                 case EV_LINK_ACTION_TYPE_LAUNCH:
1376                 case EV_LINK_ACTION_TYPE_NAMED:
1377                         g_signal_emit (view, signals[SIGNAL_EXTERNAL_LINK], 0, action);
1378                         break;
1379         }
1380 }
1381
1382 gchar *
1383 ev_view_page_label_from_dest (EvView *view, EvLinkDest *dest)
1384 {
1385         EvLinkDestType type;
1386         gchar *msg = NULL;
1387
1388         type = ev_link_dest_get_dest_type (dest);
1389
1390         switch (type) {
1391                 case EV_LINK_DEST_TYPE_NAMED: {
1392                         EvLinkDest  *dest2;
1393                         const gchar *named_dest;
1394
1395                         named_dest = ev_link_dest_get_named_dest (dest);
1396                         dest2 = ev_document_links_find_link_dest (EV_DOCUMENT_LINKS (view->document),
1397                                                                   named_dest);
1398                         if (dest2) {
1399                                 msg = ev_page_cache_get_page_label (view->page_cache,
1400                                                                     ev_link_dest_get_page (dest2));
1401                                 g_object_unref (dest2);
1402                         }
1403                 }
1404
1405                         break;
1406                 case EV_LINK_DEST_TYPE_PAGE_LABEL: {
1407                         msg = g_strdup (ev_link_dest_get_page_label (dest));
1408                 }
1409                         break;
1410                 default:
1411                         msg = ev_page_cache_get_page_label (view->page_cache,
1412                                                             ev_link_dest_get_page (dest));
1413         }
1414
1415         return msg;
1416 }
1417
1418 static char *
1419 tip_from_action_named (EvLinkAction *action)
1420 {
1421         const gchar *name = ev_link_action_get_name (action);
1422
1423         if (g_ascii_strcasecmp (name, "FirstPage") == 0) {
1424                 return g_strdup (_("Go to first page"));
1425         } else if (g_ascii_strcasecmp (name, "PrevPage") == 0) {
1426                 return g_strdup (_("Go to previous page"));
1427         } else if (g_ascii_strcasecmp (name, "NextPage") == 0) {
1428                 return g_strdup (_("Go to next page"));
1429         } else if (g_ascii_strcasecmp (name, "LastPage") == 0) {
1430                 return g_strdup (_("Go to last page"));
1431         } else if (g_ascii_strcasecmp (name, "GoToPage") == 0) {
1432                 return g_strdup (_("Go to page"));
1433         } else if (g_ascii_strcasecmp (name, "Find") == 0) {
1434                 return g_strdup (_("Find"));
1435         }
1436
1437         return NULL;
1438 }
1439
1440 static char *
1441 tip_from_link (EvView *view, EvLink *link)
1442 {
1443         EvLinkAction *action;
1444         EvLinkActionType type;
1445         char *msg = NULL;
1446         char *page_label;
1447         const char *title;
1448
1449         action = ev_link_get_action (link);
1450         title = ev_link_get_title (link);
1451
1452         if (!action)
1453                 return title ? g_strdup (title) : NULL;
1454
1455         type = ev_link_action_get_action_type (action);
1456
1457         switch (type) {
1458                 case EV_LINK_ACTION_TYPE_GOTO_DEST:
1459                         page_label = ev_view_page_label_from_dest (view,
1460                                                                    ev_link_action_get_dest (action));
1461                         msg = g_strdup_printf (_("Go to page %s"), page_label);
1462                         g_free (page_label);
1463                         break;
1464                 case EV_LINK_ACTION_TYPE_GOTO_REMOTE:
1465                         if (title) {
1466                                 msg = g_strdup_printf (_("Go to %s on file “%s”"), title,
1467                                                        ev_link_action_get_filename (action));
1468                         } else {
1469                                 msg = g_strdup_printf (_("Go to file “%s”"),
1470                                                        ev_link_action_get_filename (action));
1471                         }
1472
1473                         break;
1474                 case EV_LINK_ACTION_TYPE_EXTERNAL_URI:
1475                         msg = g_strdup (ev_link_action_get_uri (action));
1476                         break;
1477                 case EV_LINK_ACTION_TYPE_LAUNCH:
1478                         msg = g_strdup_printf (_("Launch %s"),
1479                                                ev_link_action_get_filename (action));
1480                         break;
1481                 case EV_LINK_ACTION_TYPE_NAMED:
1482                         msg = tip_from_action_named (action);
1483                         break;
1484                 default:
1485                         if (title)
1486                                 msg = g_strdup (title);
1487                         break;
1488         }
1489
1490         return msg;
1491 }
1492
1493 static void
1494 ev_view_handle_cursor_over_xy (EvView *view, gint x, gint y)
1495 {
1496         EvLink *link;
1497
1498         link = ev_view_get_link_at_location (view, x, y);
1499
1500         if (view->link_tooltip == NULL) {
1501                 view->link_tooltip = ev_tooltip_new (GTK_WIDGET (view));
1502         }
1503
1504         if (view->hovered_link != link) {
1505                 view->hovered_link = link;
1506                 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
1507         }
1508
1509         if (link) {
1510                 char *msg = tip_from_link (view, link);
1511
1512                 if (msg && g_utf8_validate (msg, -1, NULL)) {
1513                         EvTooltip *tooltip = EV_TOOLTIP (view->link_tooltip);
1514
1515                         ev_tooltip_set_position (tooltip, x, y);
1516                         ev_tooltip_set_text (tooltip, msg);
1517                         ev_tooltip_activate (tooltip);
1518                 }
1519                 g_free (msg);
1520
1521                 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1522         } else if (location_in_text (view, x + view->scroll_x, y + view->scroll_y)) {
1523                 ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1524         } else if (ev_view_get_form_field_at_location (view, x, y)) {
1525                 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1526         } else {
1527                 ev_view_set_status (view, NULL);
1528                 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1529                     view->cursor == EV_VIEW_CURSOR_IBEAM)
1530                         ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1531         }
1532 }
1533
1534 /*** Images ***/
1535 static EvImage *
1536 ev_view_get_image_at_location (EvView  *view,
1537                                gdouble  x,
1538                                gdouble  y)
1539 {
1540         gint page = -1;
1541         gint x_offset = 0, y_offset = 0;
1542         gint x_new = 0, y_new = 0;
1543         GList *image_mapping;
1544
1545         if (!EV_IS_DOCUMENT_IMAGES (view->document))
1546                 return NULL;
1547
1548         x += view->scroll_x;
1549         y += view->scroll_y;
1550
1551         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1552
1553         if (page == -1)
1554                 return NULL;
1555
1556         if (get_doc_point_from_offset (view, page, x_offset,
1557                                        y_offset, &x_new, &y_new) == FALSE)
1558                 return NULL;
1559
1560         image_mapping = ev_pixbuf_cache_get_image_mapping (view->pixbuf_cache, page);
1561
1562         if (image_mapping)
1563                 return ev_image_mapping_find (image_mapping, x_new, y_new);
1564         else
1565                 return NULL;
1566 }
1567
1568 /*** Forms ***/
1569 static EvFormField *
1570 ev_view_get_form_field_at_location (EvView  *view,
1571                                     gdouble  x,
1572                                     gdouble  y)
1573 {
1574         gint page = -1;
1575         gint x_offset = 0, y_offset = 0;
1576         gint x_new = 0, y_new = 0;
1577         GList *forms_mapping;
1578
1579         if (!EV_IS_DOCUMENT_FORMS (view->document))
1580                 return NULL;
1581
1582         x += view->scroll_x;
1583         y += view->scroll_y;
1584
1585         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1586
1587         if (page == -1)
1588                 return NULL;
1589
1590         if (get_doc_point_from_offset (view, page, x_offset,
1591                                        y_offset, &x_new, &y_new) == FALSE)
1592                 return NULL;
1593
1594         forms_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache, page);
1595
1596         if (forms_mapping)
1597                 return ev_form_field_mapping_find (forms_mapping, x_new, y_new);
1598         else
1599                 return NULL;
1600 }
1601
1602 static GdkRegion *
1603 ev_view_form_field_get_region (EvView      *view,
1604                                EvFormField *field)
1605 {
1606         EvRectangle  field_area;
1607         GdkRectangle view_area;
1608         GList       *forms_mapping;
1609
1610         forms_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache,
1611                                                                 field->page);
1612         ev_form_field_mapping_get_area (forms_mapping, field, &field_area);
1613         doc_rect_to_view_rect (view, field->page, &field_area, &view_area);
1614         view_area.x -= view->scroll_x;
1615         view_area.y -= view->scroll_y;
1616
1617         return gdk_region_rectangle (&view_area);
1618 }
1619
1620 static gboolean
1621 ev_view_forms_remove_widgets (EvView *view)
1622 {
1623         ev_view_remove_all (view);
1624
1625         return FALSE;
1626 }
1627
1628 static void
1629 ev_view_form_field_destroy (GtkWidget *widget,
1630                             EvView    *view)
1631 {
1632         g_idle_add ((GSourceFunc)ev_view_forms_remove_widgets, view);
1633 }
1634
1635 static GtkWidget *
1636 ev_view_form_field_button_create_widget (EvView      *view,
1637                                          EvFormField *field)
1638 {
1639         EvFormFieldButton *field_button = EV_FORM_FIELD_BUTTON (field);
1640
1641         switch (field_button->type) {
1642                 case EV_FORM_FIELD_BUTTON_PUSH:
1643                         break;
1644                 case EV_FORM_FIELD_BUTTON_CHECK:
1645                 case EV_FORM_FIELD_BUTTON_RADIO: {
1646                         gboolean   state;
1647                         GdkRegion *field_region;
1648
1649                         field_region = ev_view_form_field_get_region (view, field);
1650
1651                         state = ev_document_forms_form_field_button_get_state (EV_DOCUMENT_FORMS (view->document),
1652                                                                                field);
1653                         ev_document_forms_form_field_button_set_state (EV_DOCUMENT_FORMS (view->document),
1654                                                                        field, !state);
1655                         ev_pixbuf_cache_reload_page (view->pixbuf_cache,
1656                                                      field_region,
1657                                                      field->page,
1658                                                      view->rotation,
1659                                                      view->scale);
1660                         gdk_region_destroy (field_region);
1661                 }
1662                         break;
1663         }
1664
1665         return NULL;
1666 }
1667
1668 static void
1669 ev_view_form_field_text_save (EvView    *view,
1670                               GtkWidget *widget)
1671 {
1672         EvFormField *field;
1673
1674         field = g_object_get_data (G_OBJECT (widget), "form-field");
1675
1676         if (field->changed) {
1677                 EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
1678                 GdkRegion       *field_region;
1679
1680                 field_region = ev_view_form_field_get_region (view, field);
1681
1682                 ev_document_forms_form_field_text_set_text (EV_DOCUMENT_FORMS (view->document),
1683                                                             field, field_text->text);
1684                 field->changed = FALSE;
1685                 ev_pixbuf_cache_reload_page (view->pixbuf_cache,
1686                                              field_region,
1687                                              field->page,
1688                                              view->rotation,
1689                                              view->scale);
1690                 gdk_region_destroy (field_region);
1691         }
1692 }
1693
1694 static void
1695 ev_view_form_field_text_changed (GtkWidget   *widget,
1696                                  EvFormField *field)
1697 {
1698         EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
1699         gchar           *text = NULL;
1700
1701         if (GTK_IS_ENTRY (widget)) {
1702                 text = g_strdup (gtk_entry_get_text (GTK_ENTRY (widget)));
1703         } else if (GTK_IS_TEXT_BUFFER (widget)) {
1704                 GtkTextIter start, end;
1705
1706                 gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (widget), &start, &end);
1707                 text = gtk_text_buffer_get_text (GTK_TEXT_BUFFER (widget),
1708                                                  &start, &end, FALSE);
1709         }
1710
1711         if (!field_text->text ||
1712             (field_text->text && g_ascii_strcasecmp (field_text->text, text) != 0)) {
1713                 g_free (field_text->text);
1714                 field_text->text = text;
1715                 field->changed = TRUE;
1716         }
1717 }
1718
1719 static GtkWidget *
1720 ev_view_form_field_text_create_widget (EvView      *view,
1721                                        EvFormField *field)
1722 {
1723         EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
1724         GtkWidget       *text = NULL;
1725         gchar           *txt;
1726
1727         txt = ev_document_forms_form_field_text_get_text (EV_DOCUMENT_FORMS (view->document),
1728                                                           field);
1729
1730         switch (field_text->type) {
1731                 case EV_FORM_FIELD_TEXT_FILE_SELECT:
1732                         /* TODO */
1733                 case EV_FORM_FIELD_TEXT_NORMAL:
1734                 case EV_FORM_FIELD_TEXT_PASSWORD:
1735                         text = gtk_entry_new ();
1736                         gtk_entry_set_has_frame (GTK_ENTRY (text), FALSE);
1737                         gtk_entry_set_max_length (GTK_ENTRY (text), field_text->max_len);
1738                         gtk_entry_set_visibility (GTK_ENTRY (text),
1739                                                   !(field_text->type == EV_FORM_FIELD_TEXT_PASSWORD));
1740
1741                         if (txt) {
1742                                 gtk_entry_set_text (GTK_ENTRY (text), txt);
1743                                 g_free (txt);
1744                         }
1745
1746                         g_signal_connect (G_OBJECT (text), "changed",
1747                                           G_CALLBACK (ev_view_form_field_text_changed),
1748                                           field);
1749                         g_signal_connect_after (G_OBJECT (text), "activate",
1750                                                 G_CALLBACK (ev_view_form_field_destroy),
1751                                                 view);
1752                         break;
1753                 case EV_FORM_FIELD_TEXT_MULTILINE: {
1754                         GtkTextBuffer *buffer;
1755
1756                         text = gtk_text_view_new ();
1757                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
1758
1759                         if (txt) {
1760                                 gtk_text_buffer_set_text (buffer, txt, -1);
1761                                 g_free (txt);
1762                         }
1763
1764                         g_signal_connect (G_OBJECT (buffer), "changed",
1765                                           G_CALLBACK (ev_view_form_field_text_changed),
1766                                           field);
1767                 }
1768                         break;
1769         }
1770
1771         g_object_weak_ref (G_OBJECT (text),
1772                            (GWeakNotify)ev_view_form_field_text_save,
1773                            view);
1774
1775         return text;
1776 }
1777
1778 static void
1779 ev_view_form_field_choice_save (EvView    *view,
1780                                 GtkWidget *widget)
1781 {
1782         EvFormField *field;
1783
1784         field = g_object_get_data (G_OBJECT (widget), "form-field");
1785
1786         if (field->changed) {
1787                 GList             *l;
1788                 EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
1789                 GdkRegion         *field_region;
1790
1791                 field_region = ev_view_form_field_get_region (view, field);
1792
1793                 if (field_choice->is_editable) {
1794                         ev_document_forms_form_field_choice_set_text (EV_DOCUMENT_FORMS (view->document),
1795                                                                       field, field_choice->text);
1796                 } else {
1797                         ev_document_forms_form_field_choice_unselect_all (EV_DOCUMENT_FORMS (view->document), field);
1798                         for (l = field_choice->selected_items; l; l = g_list_next (l)) {
1799                                 ev_document_forms_form_field_choice_select_item (EV_DOCUMENT_FORMS (view->document),
1800                                                                                  field,
1801                                                                                  GPOINTER_TO_INT (l->data));
1802                         }
1803                 }
1804                 field->changed = FALSE;
1805                 ev_pixbuf_cache_reload_page (view->pixbuf_cache,
1806                                              field_region,
1807                                              field->page,
1808                                              view->rotation,
1809                                              view->scale);
1810                 gdk_region_destroy (field_region);
1811         }
1812 }
1813
1814 static void
1815 ev_view_form_field_choice_changed (GtkWidget   *widget,
1816                                    EvFormField *field)
1817 {
1818         EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
1819
1820         if (GTK_IS_COMBO_BOX (widget)) {
1821                 gint item;
1822
1823                 item = gtk_combo_box_get_active (GTK_COMBO_BOX (widget));
1824                 if (GPOINTER_TO_INT (field_choice->selected_items->data) != item) {
1825                         g_list_free (field_choice->selected_items);
1826                         field_choice->selected_items = NULL;
1827                         field_choice->selected_items = g_list_prepend (field_choice->selected_items,
1828                                                                        GINT_TO_POINTER (item));
1829                         field->changed = TRUE;
1830                 }
1831
1832                 if (GTK_IS_COMBO_BOX_ENTRY (widget)) {
1833                         gchar *text;
1834
1835                         text = gtk_combo_box_get_active_text (GTK_COMBO_BOX (widget));
1836                         if (!field_choice->text ||
1837                             (field_choice->text && g_ascii_strcasecmp (field_choice->text, text) != 0)) {
1838                                 g_free (field_choice->text);
1839                                 field_choice->text = text;
1840                                 field->changed = TRUE;
1841                         }
1842                 }
1843         } else if (GTK_IS_TREE_SELECTION (widget)) {
1844                 GtkTreeSelection *selection = GTK_TREE_SELECTION (widget);
1845                 GtkTreeModel     *model;
1846                 GList            *items, *l;
1847
1848                 items = gtk_tree_selection_get_selected_rows (selection, &model);
1849                 g_list_free (field_choice->selected_items);
1850                 field_choice->selected_items = NULL;
1851
1852                 for (l = items; l && l->data; l = g_list_next (l)) {
1853                         GtkTreeIter  iter;
1854                         GtkTreePath *path = (GtkTreePath *)l->data;
1855                         gint         item;
1856
1857                         gtk_tree_model_get_iter (model, &iter, path);
1858                         gtk_tree_model_get (model, &iter, 1, &item, -1);
1859
1860                         field_choice->selected_items = g_list_prepend (field_choice->selected_items,
1861                                                                        GINT_TO_POINTER (item));
1862
1863                         gtk_tree_path_free (path);
1864                 }
1865
1866                 g_list_free (items);
1867
1868                 field->changed = TRUE;
1869         }
1870 }
1871
1872 static GtkWidget *
1873 ev_view_form_field_choice_create_widget (EvView      *view,
1874                                          EvFormField *field)
1875 {
1876         EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
1877         GtkWidget         *choice;
1878         GtkTreeModel      *model;
1879         gint               n_items, i;
1880         gint               selected_item = 0;
1881
1882         n_items = ev_document_forms_form_field_choice_get_n_items (EV_DOCUMENT_FORMS (view->document),
1883                                                                    field);
1884         model = GTK_TREE_MODEL (gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT));
1885         for (i = 0; i < n_items; i++) {
1886                 GtkTreeIter iter;
1887                 gchar      *item;
1888
1889                 item = ev_document_forms_form_field_choice_get_item (EV_DOCUMENT_FORMS (view->document),
1890                                                                      field, i);
1891                 if (ev_document_forms_form_field_choice_is_item_selected (
1892                             EV_DOCUMENT_FORMS (view->document), field, i)) {
1893                         selected_item = i;
1894                         /* FIXME: we need a get_selected_items function in poppler */
1895                         field_choice->selected_items = g_list_prepend (field_choice->selected_items,
1896                                                                        GINT_TO_POINTER (i));
1897                 }
1898
1899                 if (item) {
1900                         gtk_list_store_append (GTK_LIST_STORE (model), &iter);
1901                         gtk_list_store_set (GTK_LIST_STORE (model), &iter,
1902                                             0, item,
1903                                             1, i,
1904                                             -1);
1905                         g_free (item);
1906                 }
1907         }
1908
1909         if (field_choice->type == EV_FORM_FIELD_CHOICE_LIST) {
1910                 GtkCellRenderer  *renderer;
1911                 GtkWidget        *tree_view;
1912                 GtkTreeSelection *selection;
1913
1914                 tree_view = gtk_tree_view_new_with_model (model);
1915                 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view), FALSE);
1916
1917                 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
1918                 if (field_choice->multi_select) {
1919                         gtk_tree_selection_set_mode (selection, GTK_SELECTION_MULTIPLE);
1920                 }
1921
1922                 /* TODO: set selected items */
1923
1924                 renderer = gtk_cell_renderer_text_new ();
1925                 gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
1926                                                              0,
1927                                                              "choix", renderer,
1928                                                              "text", 0,
1929                                                              NULL);
1930
1931                 choice = gtk_scrolled_window_new (NULL, NULL);
1932                 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (choice),
1933                                                 GTK_POLICY_AUTOMATIC,
1934                                                 GTK_POLICY_AUTOMATIC);
1935                 gtk_container_add (GTK_CONTAINER (choice), tree_view);
1936                 gtk_widget_show (tree_view);
1937
1938                 g_signal_connect (G_OBJECT (selection), "changed",
1939                                   G_CALLBACK (ev_view_form_field_choice_changed),
1940                                   field);
1941                 g_signal_connect_after (G_OBJECT (selection), "changed",
1942                                         G_CALLBACK (ev_view_form_field_destroy),
1943                                         view);
1944         } else if (field_choice->is_editable) { /* ComboBoxEntry */
1945                 gchar *text;
1946
1947                 choice = gtk_combo_box_entry_new_with_model (model, 0);
1948                 text = ev_document_forms_form_field_choice_get_text (EV_DOCUMENT_FORMS (view->document), field);
1949                 if (text) {
1950                         gtk_entry_set_text (GTK_ENTRY (gtk_bin_get_child (GTK_BIN (choice))), text);
1951                         g_free (text);
1952                 }
1953
1954                 g_signal_connect (G_OBJECT (choice), "changed",
1955                                   G_CALLBACK (ev_view_form_field_choice_changed),
1956                                   field);
1957                 g_signal_connect_after (G_OBJECT (GTK_BIN (choice)->child), "activate",
1958                                         G_CALLBACK (ev_view_form_field_destroy),
1959                                         view);
1960         } else { /* ComboBoxText */
1961                 GtkCellRenderer *renderer;
1962
1963                 choice = gtk_combo_box_new_with_model (model);
1964                 renderer = gtk_cell_renderer_text_new ();
1965                 gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (choice),
1966                                             renderer, TRUE);
1967                 gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (choice),
1968                                                 renderer,
1969                                                 "text", 0,
1970                                                 NULL);
1971                 gtk_combo_box_set_active (GTK_COMBO_BOX (choice), selected_item);
1972                 gtk_combo_box_popup (GTK_COMBO_BOX (choice));
1973
1974                 g_signal_connect (G_OBJECT (choice), "changed",
1975                                   G_CALLBACK (ev_view_form_field_choice_changed),
1976                                   field);
1977                 g_signal_connect_after (G_OBJECT (choice), "changed",
1978                                         G_CALLBACK (ev_view_form_field_destroy),
1979                                         view);
1980         }
1981
1982         g_object_unref (model);
1983
1984         g_object_weak_ref (G_OBJECT (choice),
1985                            (GWeakNotify)ev_view_form_field_choice_save,
1986                            view);
1987
1988         return choice;
1989 }
1990
1991 static void
1992 ev_view_handle_form_field (EvView      *view,
1993                            EvFormField *field,
1994                            gdouble      x,
1995                            gdouble      y)
1996 {
1997         GtkWidget   *field_widget = NULL;
1998         GList       *form_field_mapping;
1999         EvRectangle  field_area;
2000         GdkRectangle view_area;
2001
2002         if (field->is_read_only)
2003                 return;
2004
2005         if (EV_IS_FORM_FIELD_BUTTON (field)) {
2006                 field_widget = ev_view_form_field_button_create_widget (view, field);
2007         } else if (EV_IS_FORM_FIELD_TEXT (field)) {
2008                 field_widget = ev_view_form_field_text_create_widget (view, field);
2009         } else if (EV_IS_FORM_FIELD_CHOICE (field)) {
2010                 field_widget = ev_view_form_field_choice_create_widget (view, field);
2011         } else if (EV_IS_FORM_FIELD_SIGNATURE (field)) {
2012                 /* TODO */
2013         }
2014
2015         /* Form field doesn't require a widget */
2016         if (!field_widget)
2017                 return;
2018
2019         g_object_set_data_full (G_OBJECT (field_widget), "form-field",
2020                                 g_object_ref (field),
2021                                 (GDestroyNotify)g_object_unref);
2022
2023         form_field_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache, field->page);
2024         ev_form_field_mapping_get_area (form_field_mapping, field, &field_area);
2025
2026         doc_rect_to_view_rect (view, field->page, &field_area, &view_area);
2027         view_area.x -= view->scroll_x;
2028         view_area.y -= view->scroll_y;
2029
2030         gtk_layout_put (GTK_LAYOUT (view), field_widget, view_area.x, view_area.y);
2031         gtk_widget_show (field_widget);
2032         gtk_widget_grab_focus (field_widget);
2033 }
2034
2035 /*** GtkWidget implementation ***/
2036
2037 static void
2038 ev_view_size_request_continuous_dual_page (EvView         *view,
2039                                            GtkRequisition *requisition)
2040 {
2041         int max_width;
2042         gint n_pages;
2043         GtkBorder border;
2044
2045         ev_page_cache_get_max_width (view->page_cache, view->rotation,
2046                                      view->scale, &max_width);
2047         compute_border (view, max_width, max_width, &border);
2048
2049         n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
2050
2051         requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
2052         get_page_y_offset (view, n_pages, view->scale, &requisition->height);
2053
2054         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2055                 requisition->width = 1;
2056         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2057                 requisition->width = 1;
2058                 /* FIXME: This could actually be set on one page docs or docs
2059                  * with a strange aspect ratio. */
2060                 /* requisition->height = 1;*/
2061         }
2062 }
2063
2064 static void
2065 ev_view_size_request_continuous (EvView         *view,
2066                                  GtkRequisition *requisition)
2067 {
2068         int max_width;
2069         int n_pages;
2070         GtkBorder border;
2071
2072
2073         ev_page_cache_get_max_width (view->page_cache, view->rotation,
2074                                      view->scale, &max_width);
2075         n_pages = ev_page_cache_get_n_pages (view->page_cache);
2076         compute_border (view, max_width, max_width, &border);
2077
2078         requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
2079         get_page_y_offset (view, n_pages, view->scale, &requisition->height);
2080
2081         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2082                 requisition->width = 1;
2083         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2084                 requisition->width = 1;
2085                 /* FIXME: This could actually be set on one page docs or docs
2086                  * with a strange aspect ratio. */
2087                 /* requisition->height = 1;*/
2088         }
2089 }
2090
2091 static void
2092 ev_view_size_request_dual_page (EvView         *view,
2093                                 GtkRequisition *requisition)
2094 {
2095         GtkBorder border;
2096         gint width, height;
2097
2098         /* Find the largest of the two. */
2099         ev_page_cache_get_size (view->page_cache,
2100                                 view->current_page,
2101                                 view->rotation,
2102                                 view->scale,
2103                                 &width, &height);
2104         if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
2105                 gint width_2, height_2;
2106                 ev_page_cache_get_size (view->page_cache,
2107                                         view->current_page + 1,
2108                                         view->rotation,
2109                                         view->scale,
2110                                         &width_2, &height_2);
2111                 if (width_2 > width) {
2112                         width = width_2;
2113                         height = height_2;
2114                 }
2115         }
2116         compute_border (view, width, height, &border);
2117
2118         requisition->width = ((width + border.left + border.right) * 2) +
2119                 (view->spacing * 3);
2120         requisition->height = (height + border.top + border.bottom) +
2121                 (view->spacing * 2);
2122
2123         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2124                 requisition->width = 1;
2125         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2126                 requisition->width = 1;
2127                 requisition->height = 1;
2128         }
2129 }
2130
2131 static void
2132 ev_view_size_request_single_page (EvView         *view,
2133                                   GtkRequisition *requisition)
2134 {
2135         GtkBorder border;
2136         gint width, height;
2137
2138         ev_page_cache_get_size (view->page_cache,
2139                                 view->current_page,
2140                                 view->rotation,
2141                                 view->scale,
2142                                 &width, &height);
2143         compute_border (view, width, height, &border);
2144
2145         requisition->width = width + border.left + border.right + (2 * view->spacing);
2146         requisition->height = height + border.top + border.bottom + (2 * view->spacing);
2147
2148         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
2149                 requisition->width = 1;
2150                 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
2151         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
2152                 requisition->width = 1;
2153                 requisition->height = 1;
2154         }
2155 }
2156
2157 static void
2158 ev_view_size_request (GtkWidget      *widget,
2159                       GtkRequisition *requisition)
2160 {
2161         EvView *view = EV_VIEW (widget);
2162
2163         if (view->document == NULL) {
2164                 requisition->width = 1;
2165                 requisition->height = 1;
2166                 return;
2167         }
2168
2169         if (view->presentation) {
2170                 requisition->width = 1;
2171                 requisition->height = 1;
2172                 return;
2173         }
2174
2175         if (view->continuous && view->dual_page)
2176                 ev_view_size_request_continuous_dual_page (view, requisition);
2177         else if (view->continuous)
2178                 ev_view_size_request_continuous (view, requisition);
2179         else if (view->dual_page)
2180                 ev_view_size_request_dual_page (view, requisition);
2181         else
2182                 ev_view_size_request_single_page (view, requisition);
2183 }
2184
2185 static void
2186 ev_view_size_allocate (GtkWidget      *widget,
2187                        GtkAllocation  *allocation)
2188 {
2189         EvView *view = EV_VIEW (widget);
2190         GList  *children, *l;
2191
2192         GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
2193
2194         if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
2195             view->sizing_mode == EV_SIZING_BEST_FIT) {
2196
2197                 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
2198
2199                 ev_view_size_request (widget, &widget->requisition);
2200         }
2201
2202         view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
2203         view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
2204
2205         if (view->document)
2206                 view_update_range_and_current_page (view);
2207
2208         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
2209         view->pending_resize = FALSE;
2210
2211         children = gtk_container_get_children (GTK_CONTAINER (widget));
2212         for (l = children; l && l->data; l = g_list_next (l)) {
2213                 EvFormField   *field;
2214                 EvRectangle    field_area;
2215                 GdkRectangle   view_area;
2216                 GList         *form_field_mapping;
2217                 GtkAllocation  child_allocation;
2218                 GtkRequisition child_requisition;
2219                 GtkWidget     *child = (GtkWidget *)l->data;
2220
2221                 field = g_object_get_data (G_OBJECT (child), "form-field");
2222                 if (!field)
2223                         continue;
2224
2225                 form_field_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache,
2226                                                                              field->page);
2227                 ev_form_field_mapping_get_area (form_field_mapping, field, &field_area);
2228
2229                 doc_rect_to_view_rect (view, field->page, &field_area, &view_area);
2230                 view_area.x -= view->scroll_x;
2231                 view_area.y -= view->scroll_y;
2232
2233                 gtk_widget_size_request (child, &child_requisition);
2234                 if (child_requisition.width != view_area.width ||
2235                     child_requisition.height != view_area.height)
2236                         gtk_widget_set_size_request (child, view_area.width, view_area.height);
2237
2238                 gtk_container_child_get (GTK_CONTAINER (widget),
2239                                          child,
2240                                          "x", &child_allocation.x,
2241                                          "y", &child_allocation.y,
2242                                          NULL);
2243                 if (child_allocation.x != view_area.x ||
2244                     child_allocation.y != view_area.y) {
2245                         gtk_layout_move (GTK_LAYOUT (widget), child, view_area.x, view_area.y);
2246                 }
2247         }
2248         g_list_free (children);
2249 }
2250
2251 static void
2252 ev_view_realize (GtkWidget *widget)
2253 {
2254         EvView *view = EV_VIEW (widget);
2255
2256         if (GTK_WIDGET_CLASS (ev_view_parent_class)->realize)
2257                 (* GTK_WIDGET_CLASS (ev_view_parent_class)->realize) (widget);
2258
2259         gdk_window_set_events (view->layout.bin_window,
2260                                (gdk_window_get_events (view->layout.bin_window) |
2261                                 GDK_EXPOSURE_MASK |
2262                                 GDK_BUTTON_PRESS_MASK |
2263                                 GDK_BUTTON_RELEASE_MASK |
2264                                 GDK_SCROLL_MASK |
2265                                 GDK_KEY_PRESS_MASK |
2266                                 GDK_POINTER_MOTION_MASK |
2267                                 GDK_POINTER_MOTION_HINT_MASK |
2268                                 GDK_ENTER_NOTIFY_MASK |
2269                                 GDK_LEAVE_NOTIFY_MASK));
2270
2271         if (view->presentation)
2272                 gdk_window_set_background (view->layout.bin_window, &widget->style->black);
2273         else
2274                 gdk_window_set_background (view->layout.bin_window, &widget->style->mid [GTK_STATE_NORMAL]);
2275 }
2276
2277 static gboolean
2278 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
2279 {
2280         EvView *view = EV_VIEW (widget);
2281         guint state;
2282
2283         state = event->state & gtk_accelerator_get_default_mod_mask ();
2284
2285         if (state == GDK_CONTROL_MASK && view->presentation == FALSE) {
2286                 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
2287
2288                 if (event->direction == GDK_SCROLL_UP ||
2289                     event->direction == GDK_SCROLL_LEFT) {
2290                         if (ev_view_can_zoom_in (view)) {
2291                                 ev_view_zoom_in (view);
2292                         }
2293                 } else {
2294                         if (ev_view_can_zoom_out (view)) {
2295                                 ev_view_zoom_out (view);
2296                         }
2297                 }
2298
2299                 return TRUE;
2300         }
2301
2302         view->jump_to_find_result = FALSE;
2303         /* Shift+Wheel scrolls the in the perpendicular direction */
2304         if (state & GDK_SHIFT_MASK) {
2305                 if (event->direction == GDK_SCROLL_UP)
2306                         event->direction = GDK_SCROLL_LEFT;
2307                 if (event->direction == GDK_SCROLL_LEFT)
2308                         event->direction = GDK_SCROLL_UP;
2309                 if (event->direction == GDK_SCROLL_DOWN)
2310                         event->direction = GDK_SCROLL_RIGHT;
2311                 if (event->direction == GDK_SCROLL_RIGHT)
2312                         event->direction = GDK_SCROLL_DOWN;
2313
2314                 event->state &= ~GDK_SHIFT_MASK;
2315                 state &= ~GDK_SHIFT_MASK;
2316         }
2317
2318         if (state == 0 && view->presentation) {
2319                 switch (event->direction) {
2320                         case GDK_SCROLL_DOWN:
2321                         case GDK_SCROLL_RIGHT:
2322                                 ev_view_next_page (view);
2323                                 break;
2324                         case GDK_SCROLL_UP:
2325                         case GDK_SCROLL_LEFT:
2326                                 ev_view_previous_page (view);
2327                                 break;
2328                 }
2329
2330                 return TRUE;
2331         }
2332
2333         return FALSE;
2334 }
2335
2336 static EvViewSelection *
2337 find_selection_for_page (EvView *view,
2338                          gint    page)
2339 {
2340         GList *list;
2341
2342         for (list = view->selection_info.selections; list != NULL; list = list->next) {
2343                 EvViewSelection *selection;
2344
2345                 selection = (EvViewSelection *) list->data;
2346
2347                 if (selection->page == page)
2348                         return selection;
2349         }
2350
2351         return NULL;
2352 }
2353
2354 static void
2355 draw_end_presentation_page (EvView       *view,
2356                             GdkRectangle *page_area)
2357 {
2358         PangoLayout *layout;
2359         PangoFontDescription *font_desc;
2360         gchar *markup;
2361         const gchar *text = _("End of presentation. Press Escape to exit.");
2362
2363         if (view->presentation_state != EV_PRESENTATION_END)
2364                 return;
2365
2366         layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), NULL);
2367         markup = g_strdup_printf ("<span foreground=\"white\">%s</span>", text);
2368         pango_layout_set_markup (layout, markup, -1);
2369         g_free (markup);
2370
2371         font_desc = pango_font_description_new ();
2372         pango_font_description_set_size (font_desc, 16 * PANGO_SCALE);
2373         pango_layout_set_font_description (layout, font_desc);
2374
2375         gtk_paint_layout (GTK_WIDGET (view)->style,
2376                           view->layout.bin_window,
2377                           GTK_WIDGET_STATE (view),
2378                           FALSE,
2379                           page_area,
2380                           GTK_WIDGET (view),
2381                           NULL,
2382                           page_area->x + 15,
2383                           page_area->y + 15,
2384                           layout);
2385
2386         pango_font_description_free (font_desc);
2387         g_object_unref (layout);
2388 }
2389
2390 static gboolean
2391 ev_view_expose_event (GtkWidget      *widget,
2392                       GdkEventExpose *event)
2393 {
2394         EvView *view = EV_VIEW (widget);
2395         int i;
2396
2397         if (view->presentation) {
2398                 switch (view->presentation_state) {
2399                         case EV_PRESENTATION_END: {
2400                                 GdkRectangle area = {0};
2401
2402                                 area.width = widget->allocation.width;
2403                                 area.height = widget->allocation.height;
2404
2405                                 draw_end_presentation_page (view, &area);
2406                         }
2407                                 return FALSE;
2408                         case EV_PRESENTATION_BLACK:
2409                         case EV_PRESENTATION_WHITE:
2410                                 return FALSE;
2411                         case EV_PRESENTATION_NORMAL:
2412                         default:
2413                                 break;
2414                 }
2415         } else if (view->loading) {
2416                 GdkRectangle area = {0};
2417
2418                 area.width = widget->allocation.width;
2419                 area.height = widget->allocation.height;
2420
2421                 draw_loading_text (view,
2422                                    &area,
2423                                    &(event->area));
2424         }
2425
2426         if (view->document == NULL)
2427                 return FALSE;
2428
2429         for (i = view->start_page; i <= view->end_page; i++) {
2430                 GdkRectangle page_area;
2431                 GtkBorder border;
2432                 gboolean page_ready = TRUE;
2433
2434                 if (!get_page_extents (view, i, &page_area, &border))
2435                         continue;
2436
2437                 page_area.x -= view->scroll_x;
2438                 page_area.y -= view->scroll_y;
2439
2440                 draw_one_page (view, i, &page_area, &border, &(event->area), &page_ready);
2441
2442                 if (page_ready && EV_IS_DOCUMENT_FIND (view->document))
2443                         highlight_find_results (view, i);
2444         }
2445
2446         if (GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event)
2447                 (* GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event) (widget, event);
2448
2449         return FALSE;
2450 }
2451
2452 static gboolean
2453 ev_view_do_popup_menu (EvView *view,
2454                        gdouble x,
2455                        gdouble y)
2456 {
2457         EvLink  *link;
2458         EvImage *image;
2459
2460         image = ev_view_get_image_at_location (view, x, y);
2461         if (image) {
2462                 g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, image);
2463                 return TRUE;
2464         }
2465
2466         link = ev_view_get_link_at_location (view, x, y);
2467         if (link) {
2468                 g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link);
2469                 return TRUE;
2470         }
2471
2472         g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, NULL);
2473
2474         return TRUE;
2475 }
2476
2477 static gboolean
2478 ev_view_popup_menu (GtkWidget *widget)
2479 {
2480         gint x, y;
2481
2482         gtk_widget_get_pointer (widget, &x, &y);
2483         return ev_view_do_popup_menu (EV_VIEW (widget), x, y);
2484 }
2485
2486 static gboolean
2487 ev_view_button_press_event (GtkWidget      *widget,
2488                             GdkEventButton *event)
2489 {
2490         EvView *view = EV_VIEW (widget);
2491
2492         if (!view->document)
2493                 return FALSE;
2494
2495         if (!GTK_WIDGET_HAS_FOCUS (widget)) {
2496                 gtk_widget_grab_focus (widget);
2497         }
2498
2499         view->pressed_button = event->button;
2500         view->selection_info.in_drag = FALSE;
2501
2502         switch (event->button) {
2503                 case 1: {
2504                         EvImage *image;
2505                         EvFormField *field;
2506
2507                         if (view->selection_info.selections) {
2508                                 if (location_in_selected_text (view,
2509                                                                event->x + view->scroll_x,
2510                                                                event->y + view->scroll_y)) {
2511                                         view->selection_info.in_drag = TRUE;
2512                                 } else {
2513                                         clear_selection (view);
2514
2515                                         view->selection_info.start.x = event->x + view->scroll_x;
2516                                         view->selection_info.start.y = event->y + view->scroll_y;
2517                                 }
2518
2519                                 gtk_widget_queue_draw (widget);
2520                         } else if (!location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y) &&
2521                                    (image = ev_view_get_image_at_location (view, event->x, event->y))) {
2522                                 if (view->image_dnd_info.image)
2523                                         g_object_unref (view->image_dnd_info.image);
2524                                 view->image_dnd_info.image = g_object_ref (image);
2525                                 view->image_dnd_info.in_drag = TRUE;
2526
2527                                 view->image_dnd_info.start.x = event->x + view->scroll_x;
2528                                 view->image_dnd_info.start.y = event->y + view->scroll_y;
2529                         } else if ((field = ev_view_get_form_field_at_location (view, event->x, event->y))) {
2530                                 ev_view_remove_all (view);
2531                                 ev_view_handle_form_field (view, field, event->x, event->y);
2532                         } else {
2533                                 ev_view_remove_all (view);
2534                                 view->selection_info.start.x = event->x + view->scroll_x;
2535                                 view->selection_info.start.y = event->y + view->scroll_y;
2536                         }
2537                 }
2538                         return TRUE;
2539                 case 2:
2540                         /* use root coordinates as reference point because
2541                          * scrolling changes window relative coordinates */
2542                         view->drag_info.start.x = event->x_root;
2543                         view->drag_info.start.y = event->y_root;
2544                         view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
2545                         view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
2546
2547                         ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
2548
2549                         return TRUE;
2550                 case 3:
2551                         return ev_view_do_popup_menu (view, event->x, event->y);
2552         }
2553
2554         return FALSE;
2555 }
2556
2557 static void
2558 ev_view_remove_all (EvView *view)
2559 {
2560         GList *children, *child;
2561
2562         children = gtk_container_get_children (GTK_CONTAINER (view));
2563         for (child = children; child && child->data; child = g_list_next (child)) {
2564                 gtk_container_remove (GTK_CONTAINER (view),
2565                                       GTK_WIDGET (child->data));
2566         }
2567         g_list_free (children);
2568 }
2569
2570 /*** Drag and Drop ***/
2571 static void
2572 ev_view_drag_data_get (GtkWidget        *widget,
2573                        GdkDragContext   *context,
2574                        GtkSelectionData *selection_data,
2575                        guint             info,
2576                        guint             time)
2577 {
2578         EvView *view = EV_VIEW (widget);
2579
2580         switch (info) {
2581                 case TARGET_DND_TEXT:
2582                         if (view->selection_info.selections &&
2583                             ev_document_can_get_text (view->document)) {
2584                                 gchar *text;
2585
2586                                 text = get_selected_text (view);
2587
2588                                 gtk_selection_data_set_text (selection_data,
2589                                                              text,
2590                                                              strlen (text));
2591
2592                                 g_free (text);
2593                         }
2594                         break;
2595                 case TARGET_DND_IMAGE:
2596                         if (view->image_dnd_info.image) {
2597                                 GdkPixbuf *pixbuf;
2598
2599                                 pixbuf = ev_image_get_pixbuf (view->image_dnd_info.image);
2600                                 gtk_selection_data_set_pixbuf (selection_data, pixbuf);
2601                         }
2602                         break;
2603                 case TARGET_DND_URI:
2604                         if (view->image_dnd_info.image) {
2605                                 const gchar *tmp_uri;
2606                                 gchar      **uris;
2607
2608                                 tmp_uri = ev_image_save_tmp (view->image_dnd_info.image);
2609
2610                                 uris = g_new0 (gchar *, 2);
2611                                 uris[0] = (gchar *)tmp_uri;
2612
2613                                 gtk_selection_data_set_uris (selection_data, uris);
2614
2615                                 /* g_free instead of g_strfreev since tmp_uri is const */
2616                                 g_free (uris);
2617                         }
2618         }
2619 }
2620
2621 static gboolean
2622 ev_view_drag_motion (GtkWidget      *widget,
2623                      GdkDragContext *context,
2624                      gint            x,
2625                      gint            y,
2626                      guint           time)
2627 {
2628         if (gtk_drag_get_source_widget (context) == widget)
2629                 gdk_drag_status (context, 0, time);
2630         else
2631                 gdk_drag_status (context, context->suggested_action, time);
2632
2633         return TRUE;
2634 }
2635
2636 static void
2637 ev_view_drag_data_received (GtkWidget          *widget,
2638                             GdkDragContext     *context,
2639                             gint                x,
2640                             gint                y,
2641                             GtkSelectionData   *selection_data,
2642                             guint               info,
2643                             guint               time)
2644 {
2645         gchar  **uris;
2646         gint     i = 0;
2647         GSList  *uri_list = NULL;
2648
2649         uris = gtk_selection_data_get_uris (selection_data);
2650         if (!uris) {
2651                 gtk_drag_finish (context, FALSE, FALSE, time);
2652                 return;
2653         }
2654
2655         for (i = 0; uris[i]; i++) {
2656                 uri_list = g_slist_prepend (uri_list, (gpointer) uris[i]);
2657         }
2658
2659         ev_application_open_uri_list (EV_APP, uri_list,
2660                                       gtk_widget_get_screen (widget),
2661                                       0);
2662         gtk_drag_finish (context, TRUE, FALSE, time);
2663
2664         g_strfreev (uris);
2665         g_slist_free (uri_list);
2666 }
2667
2668
2669 static gboolean
2670 selection_update_idle_cb (EvView *view)
2671 {
2672         compute_selections (view, &view->selection_info.start, &view->motion);
2673         view->selection_update_id = 0;
2674         return FALSE;
2675 }
2676
2677 static gboolean
2678 selection_scroll_timeout_cb (EvView *view)
2679 {
2680         gint x, y, shift = 0;
2681         GtkWidget *widget = GTK_WIDGET (view);
2682
2683         gtk_widget_get_pointer (widget, &x, &y);
2684
2685         if (y > widget->allocation.height) {
2686                 shift = (y - widget->allocation.height) / 2;
2687         } else if (y < 0) {
2688                 shift = y / 2;
2689         }
2690
2691         if (shift)
2692                 gtk_adjustment_set_value (view->vadjustment,
2693                                           CLAMP (view->vadjustment->value + shift,
2694                                           view->vadjustment->lower,
2695                                           view->vadjustment->upper -
2696                                           view->vadjustment->page_size));
2697
2698         if (x > widget->allocation.width) {
2699                 shift = (x - widget->allocation.width) / 2;
2700         } else if (x < 0) {
2701                 shift = x / 2;
2702         }
2703
2704         if (shift)
2705                 gtk_adjustment_set_value (view->hadjustment,
2706                                           CLAMP (view->hadjustment->value + shift,
2707                                           view->hadjustment->lower,
2708                                           view->hadjustment->upper -
2709                                           view->hadjustment->page_size));
2710
2711         return TRUE;
2712 }
2713
2714 static gboolean
2715 ev_view_motion_notify_event (GtkWidget      *widget,
2716                              GdkEventMotion *event)
2717 {
2718         EvView *view = EV_VIEW (widget);
2719         gint x, y;
2720
2721         if (!view->document)
2722                 return FALSE;
2723
2724         if (event->is_hint || event->window != view->layout.bin_window) {
2725             gtk_widget_get_pointer (widget, &x, &y);
2726         } else {
2727             x = event->x;
2728             y = event->y;
2729         }
2730
2731         if (view->selection_info.in_drag) {
2732                 if (gtk_drag_check_threshold (widget,
2733                                               view->selection_info.start.x,
2734                                               view->selection_info.start.y,
2735                                               x, y)) {
2736                         GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
2737
2738                         gtk_target_list_add_text_targets (target_list, TARGET_DND_TEXT);
2739
2740                         gtk_drag_begin (widget, target_list,
2741                                         GDK_ACTION_COPY,
2742                                         1, (GdkEvent *)event);
2743
2744                         view->selection_info.in_drag = FALSE;
2745
2746                         gtk_target_list_unref (target_list);
2747
2748                         return TRUE;
2749                 }
2750         } else if (view->image_dnd_info.in_drag) {
2751                 if (gtk_drag_check_threshold (widget,
2752                                               view->selection_info.start.x,
2753                                               view->selection_info.start.y,
2754                                               x, y)) {
2755                         GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
2756
2757                         gtk_target_list_add_uri_targets (target_list, TARGET_DND_URI);
2758                         gtk_target_list_add_image_targets (target_list, TARGET_DND_IMAGE, TRUE);
2759
2760                         gtk_drag_begin (widget, target_list,
2761                                         GDK_ACTION_COPY,
2762                                         1, (GdkEvent *)event);
2763
2764                         view->image_dnd_info.in_drag = FALSE;
2765
2766                         gtk_target_list_unref (target_list);
2767
2768                         return TRUE;
2769                 }
2770         }
2771
2772         /* For the Evince 0.4.x release, we limit selection to un-rotated
2773          * documents only.
2774          */
2775         if (view->pressed_button == 1 && view->rotation == 0) {
2776
2777                 /* Schedule timeout to scroll during selection and additionally
2778                  * scroll once to allow arbitrary speed. */
2779                 if (!view->selection_scroll_id)
2780                     view->selection_scroll_id = g_timeout_add (SCROLL_TIME, (GSourceFunc)selection_scroll_timeout_cb, view);
2781                 else
2782                     selection_scroll_timeout_cb (view);
2783
2784                 view->selection_info.in_selection = TRUE;
2785                 view->motion.x = x + view->scroll_x;
2786                 view->motion.y = y + view->scroll_y;
2787
2788                 /* Queue an idle to handle the motion.  We do this because
2789                  * handling any selection events in the motion could be slower
2790                  * than new motion events reach us.  We always put it in the
2791                  * idle to make sure we catch up and don't visibly lag the
2792                  * mouse. */
2793                 if (!view->selection_update_id)
2794                         view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
2795
2796                 return TRUE;
2797         } else if (view->pressed_button == 2) {
2798                 if (!view->drag_info.in_drag) {
2799                         gboolean start;
2800
2801                         start = gtk_drag_check_threshold (widget,
2802                                                           view->drag_info.start.x,
2803                                                           view->drag_info.start.y,
2804                                                           event->x_root,
2805                                                           event->y_root);
2806                         view->drag_info.in_drag = start;
2807                 }
2808
2809                 if (view->drag_info.in_drag) {
2810                         int dx, dy;
2811                         gdouble dhadj_value, dvadj_value;
2812
2813                         dx = event->x_root - view->drag_info.start.x;
2814                         dy = event->y_root - view->drag_info.start.y;
2815
2816                         dhadj_value = view->hadjustment->page_size *
2817                                       (gdouble)dx / widget->allocation.width;
2818                         dvadj_value = view->vadjustment->page_size *
2819                                       (gdouble)dy / widget->allocation.height;
2820
2821                         /* clamp scrolling to visible area */
2822                         gtk_adjustment_set_value (view->hadjustment,
2823                                                   MIN(view->drag_info.hadj - dhadj_value,
2824                                                       view->hadjustment->upper -
2825                                                       view->hadjustment->page_size));
2826                         gtk_adjustment_set_value (view->vadjustment,
2827                                                   MIN(view->drag_info.vadj - dvadj_value,
2828                                                       view->vadjustment->upper -
2829                                                       view->vadjustment->page_size));
2830
2831                         return TRUE;
2832                 }
2833         } else if (view->pressed_button <= 0) {
2834                 ev_view_handle_cursor_over_xy (view, x, y);
2835                 return TRUE;
2836         }
2837
2838         return FALSE;
2839 }
2840
2841 static gboolean
2842 ev_view_button_release_event (GtkWidget      *widget,
2843                               GdkEventButton *event)
2844 {
2845         EvView *view = EV_VIEW (widget);
2846         EvLink *link;
2847
2848         if (view->pressed_button == 2) {
2849                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
2850         }
2851
2852         if (view->document && view->pressed_button != 3) {
2853                 link = ev_view_get_link_at_location (view, event->x, event->y);
2854         } else {
2855                 link = NULL;
2856         }
2857
2858         view->pressed_button = -1;
2859         view->drag_info.in_drag = FALSE;
2860         view->image_dnd_info.in_drag = FALSE;
2861
2862         if (view->selection_scroll_id) {
2863             g_source_remove (view->selection_scroll_id);
2864             view->selection_scroll_id = 0;
2865         }
2866         if (view->selection_update_id) {
2867             g_source_remove (view->selection_update_id);
2868             view->selection_update_id = 0;
2869         }
2870
2871         if (view->selection_info.selections) {
2872                 ev_view_update_primary_selection (view);
2873
2874                 if (view->selection_info.in_drag) {
2875                         clear_selection (view);
2876                         gtk_widget_queue_draw (widget);
2877                 }
2878
2879                 view->selection_info.in_drag = FALSE;
2880         } else if (link) {
2881                 if (event->button == 2) {
2882                         EvLinkAction    *action;
2883                         EvLinkActionType type;
2884
2885                         action = ev_link_get_action (link);
2886                         if (!action)
2887                                 return FALSE;
2888
2889                         type = ev_link_action_get_action_type (action);
2890                         if (type == EV_LINK_ACTION_TYPE_GOTO_DEST) {
2891                                 g_signal_emit (view,
2892                                                signals[SIGNAL_EXTERNAL_LINK],
2893                                                0, action);
2894                         }
2895                 } else {
2896                         ev_view_handle_link (view, link);
2897                 }
2898         } else if (view->presentation) {
2899                 switch (event->button) {
2900                         case 1:
2901                                 ev_view_next_page (view);
2902                                 return TRUE;
2903                         case 3:
2904                                 ev_view_previous_page (view);
2905                                 return TRUE;
2906                 }
2907         }
2908
2909         return FALSE;
2910 }
2911
2912 /* Goto Window */
2913 /* Cut and paste from gtkwindow.c */
2914 static void
2915 send_focus_change (GtkWidget *widget,
2916                    gboolean   in)
2917 {
2918         GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
2919
2920         g_object_ref (widget);
2921
2922         if (in)
2923                 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
2924         else
2925                 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
2926
2927         fevent->focus_change.type = GDK_FOCUS_CHANGE;
2928         fevent->focus_change.window = g_object_ref (widget->window);
2929         fevent->focus_change.in = in;
2930
2931         gtk_widget_event (widget, fevent);
2932
2933         g_object_notify (G_OBJECT (widget), "has-focus");
2934
2935         g_object_unref (widget);
2936         gdk_event_free (fevent);
2937 }
2938
2939 static void
2940 ev_view_goto_window_hide (EvView *view)
2941 {
2942         /* send focus-in event */
2943         send_focus_change (view->goto_entry, FALSE);
2944         gtk_widget_hide (view->goto_window);
2945         gtk_entry_set_text (GTK_ENTRY (view->goto_entry), "");
2946 }
2947
2948 static gboolean
2949 ev_view_goto_window_delete_event (GtkWidget   *widget,
2950                                   GdkEventAny *event,
2951                                   EvView      *view)
2952 {
2953         ev_view_goto_window_hide (view);
2954
2955         return TRUE;
2956 }
2957
2958 static gboolean
2959 key_is_numeric (guint keyval)
2960 {
2961         return ((keyval >= GDK_0 && keyval <= GDK_9) ||
2962                 (keyval >= GDK_KP_0 && keyval <= GDK_KP_9));
2963 }
2964
2965 static gboolean
2966 ev_view_goto_window_key_press_event (GtkWidget   *widget,
2967                                      GdkEventKey *event,
2968                                      EvView      *view)
2969 {
2970         switch (event->keyval) {
2971                 case GDK_Escape:
2972                 case GDK_Tab:
2973                 case GDK_KP_Tab:
2974                 case GDK_ISO_Left_Tab:
2975                         ev_view_goto_window_hide (view);
2976                         return TRUE;
2977                 case GDK_Return:
2978                 case GDK_KP_Enter:
2979                 case GDK_ISO_Enter:
2980                 case GDK_BackSpace:
2981                 case GDK_Delete:
2982                         return FALSE;
2983                 default:
2984                         if (!key_is_numeric (event->keyval))
2985                                 return TRUE;
2986         }
2987
2988         return FALSE;
2989 }
2990
2991 static gboolean
2992 ev_view_goto_window_button_press_event (GtkWidget      *widget,
2993                                         GdkEventButton *event,
2994                                         EvView         *view)
2995 {
2996         ev_view_goto_window_hide (view);
2997
2998         return TRUE;
2999 }
3000
3001 static void
3002 ev_view_goto_entry_activate (GtkEntry *entry,
3003                              EvView   *view)
3004 {
3005         const gchar *text;
3006         gint         page;
3007
3008         text = gtk_entry_get_text (entry);
3009         page = atoi (text) - 1;
3010
3011         ev_view_goto_window_hide (view);
3012
3013         if (page >= 0 &&
3014             page < ev_page_cache_get_n_pages (view->page_cache))
3015                 ev_page_cache_set_current_page (view->page_cache, page);
3016 }
3017
3018 static void
3019 ev_view_goto_window_create (EvView *view)
3020 {
3021         GtkWidget *frame, *hbox, *toplevel, *label;
3022
3023         toplevel = gtk_widget_get_toplevel (GTK_WIDGET (view));
3024
3025         if (view->goto_window) {
3026                 if (GTK_WINDOW (toplevel)->group)
3027                         gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
3028                                                      GTK_WINDOW (view->goto_window));
3029                 else if (GTK_WINDOW (view->goto_window)->group)
3030                         gtk_window_group_remove_window (GTK_WINDOW (view->goto_window)->group,
3031                                                         GTK_WINDOW (view->goto_window));
3032                 return;
3033         }
3034
3035         view->goto_window = gtk_window_new (GTK_WINDOW_POPUP);
3036
3037         if (GTK_WINDOW (toplevel)->group)
3038                 gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
3039                                              GTK_WINDOW (view->goto_window));
3040
3041         gtk_window_set_modal (GTK_WINDOW (view->goto_window), TRUE);
3042
3043         g_signal_connect (view->goto_window, "delete_event",
3044                           G_CALLBACK (ev_view_goto_window_delete_event),
3045                           view);
3046         g_signal_connect (view->goto_window, "key_press_event",
3047                           G_CALLBACK (ev_view_goto_window_key_press_event),
3048                           view);
3049         g_signal_connect (view->goto_window, "button_press_event",
3050                           G_CALLBACK (ev_view_goto_window_button_press_event),
3051                           view);
3052
3053         frame = gtk_frame_new (NULL);
3054         gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
3055         gtk_container_add (GTK_CONTAINER (view->goto_window), frame);
3056         gtk_widget_show (frame);
3057
3058         hbox = gtk_hbox_new (FALSE, 0);
3059         gtk_container_set_border_width (GTK_CONTAINER (hbox), 3);
3060         gtk_container_add (GTK_CONTAINER (frame), hbox);
3061         gtk_widget_show (hbox);
3062
3063         label = gtk_label_new(_("Jump to page:"));
3064         gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 3);
3065         gtk_widget_show (label);
3066         gtk_widget_realize (label);
3067
3068         view->goto_entry = gtk_entry_new ();
3069         g_signal_connect (view->goto_entry, "activate",
3070                           G_CALLBACK (ev_view_goto_entry_activate),
3071                           view);
3072         gtk_box_pack_start_defaults (GTK_BOX (hbox), view->goto_entry);
3073         gtk_widget_show (view->goto_entry);
3074         gtk_widget_realize (view->goto_entry);
3075 }
3076
3077 static void
3078 ev_view_goto_entry_grab_focus (EvView *view)
3079 {
3080         GtkWidgetClass *entry_parent_class;
3081
3082         entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (view->goto_entry));
3083         (entry_parent_class->grab_focus) (view->goto_entry);
3084
3085         send_focus_change (view->goto_entry, TRUE);
3086 }
3087
3088 static void
3089 ev_view_goto_window_send_key_event (EvView   *view,
3090                                     GdkEvent *event)
3091 {
3092         GdkEventKey *new_event;
3093         GdkScreen   *screen;
3094
3095         /* Move goto window off screen */
3096         screen = gtk_widget_get_screen (GTK_WIDGET (view));
3097         gtk_window_move (GTK_WINDOW (view->goto_window),
3098                          gdk_screen_get_width (screen) + 1,
3099                          gdk_screen_get_height (screen) + 1);
3100         gtk_widget_show (view->goto_window);
3101
3102         new_event = (GdkEventKey *) gdk_event_copy (event);
3103         g_object_unref (new_event->window);
3104         new_event->window = g_object_ref (view->goto_window->window);
3105         gtk_widget_realize (view->goto_window);
3106
3107         gtk_widget_event (view->goto_window, (GdkEvent *)new_event);
3108         gdk_event_free ((GdkEvent *)new_event);
3109         gtk_widget_hide (view->goto_window);
3110 }
3111
3112 static gboolean
3113 ev_view_key_press_event (GtkWidget   *widget,
3114                          GdkEventKey *event)
3115 {
3116         EvView *view = EV_VIEW (widget);
3117         EvPresentationState current;
3118
3119         if (!view->document)
3120                 return FALSE;
3121
3122         if (!view->presentation ||
3123             view->presentation_state == EV_PRESENTATION_END)
3124                 return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
3125
3126
3127         current = view->presentation_state;
3128
3129         switch (event->keyval) {
3130                 case GDK_b:
3131                 case GDK_B:
3132                         view->presentation_state =
3133                                 (view->presentation_state == EV_PRESENTATION_BLACK) ?
3134                                 EV_PRESENTATION_NORMAL : EV_PRESENTATION_BLACK;
3135                         break;
3136                 case GDK_w:
3137                 case GDK_W:
3138                         view->presentation_state =
3139                                 (view->presentation_state == EV_PRESENTATION_WHITE) ?
3140                                 EV_PRESENTATION_NORMAL : EV_PRESENTATION_WHITE;
3141                         break;
3142                 default:
3143                         if (view->presentation_state == EV_PRESENTATION_BLACK ||
3144                             view->presentation_state == EV_PRESENTATION_WHITE) {
3145                                 view->presentation_state = EV_PRESENTATION_NORMAL;
3146                         }
3147         }
3148
3149         if (current == view->presentation_state) {
3150                 if (ev_page_cache_get_n_pages (view->page_cache) > 1 &&
3151                     key_is_numeric (event->keyval)) {
3152                         gint x, y;
3153
3154                         ev_view_goto_window_create (view);
3155                         ev_view_goto_window_send_key_event (view, (GdkEvent *)event);
3156                         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
3157                         gtk_window_move (GTK_WINDOW (view->goto_window), x, y);
3158                         gtk_widget_show (view->goto_window);
3159                         ev_view_goto_entry_grab_focus (view);
3160
3161                         return TRUE;
3162                 }
3163
3164                 return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
3165         }
3166
3167         switch (view->presentation_state) {
3168                 case EV_PRESENTATION_NORMAL:
3169                 case EV_PRESENTATION_BLACK:
3170                         gdk_window_set_background (view->layout.bin_window,
3171                                                    &widget->style->black);
3172                         break;
3173                 case EV_PRESENTATION_WHITE:
3174                         gdk_window_set_background (view->layout.bin_window,
3175                                                    &widget->style->white);
3176                         break;
3177                 default:
3178                         return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
3179         }
3180
3181         gtk_widget_queue_draw (widget);
3182         return TRUE;
3183 }
3184
3185 static gint
3186 ev_view_focus_in (GtkWidget     *widget,
3187                   GdkEventFocus *event)
3188 {
3189         if (EV_VIEW (widget)->pixbuf_cache)
3190                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
3191         gtk_widget_queue_draw (widget);
3192
3193         return FALSE;
3194 }
3195
3196 static gint
3197 ev_view_focus_out (GtkWidget     *widget,
3198                      GdkEventFocus *event)
3199 {
3200         if (EV_VIEW (widget)->goto_window)
3201                 ev_view_goto_window_hide (EV_VIEW (widget));
3202
3203         if (EV_VIEW (widget)->pixbuf_cache)
3204                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
3205         gtk_widget_queue_draw (widget);
3206
3207         return FALSE;
3208 }
3209
3210 static gboolean
3211 ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing   *event)
3212 {
3213         EvView *view = EV_VIEW (widget);
3214
3215         ev_view_set_status (view, NULL);
3216
3217         if (view->cursor == EV_VIEW_CURSOR_LINK ||
3218             view->cursor == EV_VIEW_CURSOR_IBEAM)
3219                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3220
3221         if (view->link_tooltip) {
3222                 view->hovered_link = NULL;
3223                 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
3224         }
3225
3226         return FALSE;
3227 }
3228
3229 static gboolean
3230 ev_view_enter_notify_event (GtkWidget *widget, GdkEventCrossing   *event)
3231 {
3232         EvView *view = EV_VIEW (widget);
3233
3234         ev_view_handle_cursor_over_xy (view, event->x, event->y);
3235
3236         return FALSE;
3237 }
3238
3239 static void
3240 ev_view_style_set (GtkWidget *widget,
3241                    GtkStyle  *old_style)
3242 {
3243         if (EV_VIEW (widget)->pixbuf_cache)
3244                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
3245
3246         GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
3247 }
3248
3249 /*** Drawing ***/
3250
3251 static guint32
3252 ev_gdk_color_to_rgb (const GdkColor *color)
3253 {
3254   guint32 result;
3255   result = (0xff0000 | (color->red & 0xff00));
3256   result <<= 8;
3257   result |= ((color->green & 0xff00) | (color->blue >> 8));
3258   return result;
3259 }
3260
3261 static void
3262 draw_rubberband (GtkWidget *widget, GdkWindow *window,
3263                  const GdkRectangle *rect, guchar alpha)
3264 {
3265         GdkGC *gc;
3266         GdkPixbuf *pixbuf;
3267         GdkColor *fill_color_gdk;
3268         guint fill_color;
3269
3270         fill_color_gdk = gdk_color_copy (&GTK_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
3271         fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
3272
3273         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
3274                                  rect->width, rect->height);
3275         gdk_pixbuf_fill (pixbuf, fill_color);
3276
3277         gdk_draw_pixbuf (window, NULL, pixbuf,
3278                          0, 0,
3279                          rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
3280                          rect->width, rect->height,
3281                          GDK_RGB_DITHER_NONE,
3282                          0, 0);
3283
3284         g_object_unref (pixbuf);
3285
3286         gc = gdk_gc_new (window);
3287         gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
3288         gdk_draw_rectangle (window, gc, FALSE,
3289                             rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
3290                             rect->width - 1,
3291                             rect->height - 1);
3292         g_object_unref (gc);
3293
3294         gdk_color_free (fill_color_gdk);
3295 }
3296
3297
3298 static void
3299 highlight_find_results (EvView *view, int page)
3300 {
3301         EvDocumentFind *find;
3302         int i, results = 0;
3303
3304         find = EV_DOCUMENT_FIND (view->document);
3305
3306         results = ev_document_find_get_n_results (find, page);
3307
3308         for (i = 0; i < results; i++) {
3309                 EvRectangle rectangle;
3310                 GdkRectangle view_rectangle;
3311                 guchar alpha;
3312
3313                 if (i == view->find_result && page == view->current_page) {
3314                         alpha = 0x90;
3315                 } else {
3316                         alpha = 0x20;
3317                 }
3318
3319                 ev_document_find_get_result (find, page, i, &rectangle);
3320                 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
3321                 draw_rubberband (GTK_WIDGET (view), view->layout.bin_window,
3322                                  &view_rectangle, alpha);
3323         }
3324 }
3325
3326 static void
3327 draw_loading_text (EvView       *view,
3328                    GdkRectangle *page_area,
3329                    GdkRectangle *expose_area)
3330 {
3331         cairo_t *cr;
3332         gint     width, height;
3333
3334         /* Don't annoy users with loading messages during presentations.
3335          * FIXME: Temporary "workaround" for
3336          * http://bugzilla.gnome.org/show_bug.cgi?id=320352 */
3337         if (view->presentation)
3338                 return;
3339
3340         if (!view->loading_text) {
3341                 const gchar *loading_text = _("Loading...");
3342                 PangoLayout *layout;
3343                 PangoFontDescription *font_desc;
3344                 PangoRectangle logical_rect;
3345                 gint target_width;
3346                 gdouble real_scale;
3347
3348                 ev_document_fc_mutex_lock ();
3349
3350                 layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), loading_text);
3351
3352                 font_desc = pango_font_description_new ();
3353
3354                 /* We set the font to be 10 points, get the size, and scale appropriately */
3355                 pango_font_description_set_size (font_desc, 10 * PANGO_SCALE);
3356                 pango_layout_set_font_description (layout, font_desc);
3357                 pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
3358
3359                 target_width = MAX (page_area->width / 2, 1);
3360                 real_scale = ((double)target_width / (double) logical_rect.width) * (PANGO_SCALE * 10);
3361                 pango_font_description_set_size (font_desc, (int)real_scale);
3362                 pango_layout_set_font_description (layout, font_desc);
3363                 pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
3364
3365                 view->loading_text = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
3366                                                                  logical_rect.width,
3367                                                                  logical_rect.height);
3368                 cr = cairo_create (view->loading_text);
3369                 cairo_set_source_rgb (cr,
3370                                       155 / (double)255,
3371                                       155 / (double)255,
3372                                       155 / (double)255);
3373                 pango_cairo_show_layout (cr, layout);
3374                 cairo_destroy (cr);
3375
3376                 pango_font_description_free (font_desc);
3377                 g_object_unref (layout);
3378
3379                 ev_document_fc_mutex_unlock ();
3380         }
3381
3382         width = (page_area->width - cairo_image_surface_get_width (view->loading_text)) / 2;
3383         height = (page_area->height - cairo_image_surface_get_height (view->loading_text)) / 2;
3384
3385         cr = gdk_cairo_create (view->layout.bin_window);
3386         cairo_translate (cr,
3387                          page_area->x + width,
3388                          page_area->y + height);
3389         cairo_set_source_surface (cr, view->loading_text, 0, 0);
3390         cairo_paint (cr);
3391         cairo_destroy (cr);
3392 }
3393
3394 static void
3395 draw_one_page (EvView       *view,
3396                gint          page,
3397                GdkRectangle *page_area,
3398                GtkBorder    *border,
3399                GdkRectangle *expose_area,
3400                gboolean     *page_ready)
3401 {
3402         GdkRectangle overlap;
3403         GdkRectangle real_page_area;
3404
3405         g_assert (view->document);
3406
3407         if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
3408                 return;
3409
3410         /* Render the document itself */
3411         real_page_area = *page_area;
3412
3413         real_page_area.x += border->left;
3414         real_page_area.y += border->top;
3415         real_page_area.width -= (border->left + border->right);
3416         real_page_area.height -= (border->top + border->bottom);
3417         *page_ready = TRUE;
3418
3419         if (!view->presentation) {
3420                 gint current_page;
3421
3422                 current_page = ev_page_cache_get_current_page (view->page_cache);
3423                 ev_document_misc_paint_one_page (view->layout.bin_window,
3424                                                  GTK_WIDGET (view),
3425                                                  page_area, border,
3426                                                  page == current_page);
3427         }
3428
3429         if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
3430                 gint             width, height;
3431                 gint             page_width, page_height;
3432                 cairo_surface_t *page_surface = NULL;
3433                 gint             selection_width, selection_height;
3434                 cairo_surface_t *selection_surface = NULL;
3435                 cairo_t         *cr = NULL;
3436
3437                 page_surface = ev_pixbuf_cache_get_surface (view->pixbuf_cache, page);
3438
3439                 if (!page_surface) {
3440                         draw_loading_text (view,
3441                                            &real_page_area,
3442                                            expose_area);
3443                         *page_ready = FALSE;
3444
3445                         return;
3446                 }
3447
3448                 ev_page_cache_get_size (view->page_cache,
3449                                         page, view->rotation,
3450                                         view->scale,
3451                                         &width, &height);
3452
3453                 cr = gdk_cairo_create (view->layout.bin_window);
3454
3455                 cairo_save (cr);
3456
3457                 page_width = cairo_image_surface_get_width (page_surface);
3458                 page_height = cairo_image_surface_get_height (page_surface);
3459
3460                 cairo_rectangle (cr, overlap.x, overlap.y, overlap.width, overlap.height);
3461                 cairo_clip (cr);
3462
3463                 cairo_translate (cr, overlap.x, overlap.y);
3464
3465                 if (width != page_width || height != page_height) {
3466                         cairo_pattern_set_filter (cairo_get_source (cr),
3467                                                   CAIRO_FILTER_FAST);
3468                         cairo_scale (cr,
3469                                      (gdouble)width / page_width,
3470                                      (gdouble)height / page_height);
3471                 }
3472
3473                 cairo_surface_set_device_offset (page_surface,
3474                                                  overlap.x - real_page_area.x,
3475                                                  overlap.y - real_page_area.y);
3476
3477                 cairo_set_source_surface (cr, page_surface, 0, 0);
3478                 cairo_paint (cr);
3479
3480                 cairo_restore (cr);
3481
3482                 /* Get the selection pixbuf iff we have something to draw */
3483                 if (find_selection_for_page (view, page) &&
3484                     view->selection_mode == EV_VIEW_SELECTION_TEXT) {
3485                         selection_surface =
3486                                 ev_pixbuf_cache_get_selection_surface (view->pixbuf_cache,
3487                                                                        page,
3488                                                                        view->scale,
3489                                                                        NULL);
3490                 }
3491
3492                 if (!selection_surface) {
3493                         cairo_destroy (cr);
3494                         return;
3495                 }
3496
3497                 selection_width = cairo_image_surface_get_width (selection_surface);
3498                 selection_height = cairo_image_surface_get_height (selection_surface);
3499
3500                 cairo_rectangle (cr, overlap.x, overlap.y, overlap.width, overlap.height);
3501                 cairo_clip (cr);
3502
3503                 cairo_translate (cr, overlap.x, overlap.y);
3504
3505                 if (width != selection_width || height != selection_height) {
3506                         cairo_pattern_set_filter (cairo_get_source (cr),
3507                                                   CAIRO_FILTER_FAST);
3508                         cairo_scale (cr,
3509                                      (gdouble)width / selection_width,
3510                                      (gdouble)height / selection_height);
3511                 }
3512
3513                 cairo_surface_set_device_offset (selection_surface,
3514                                                  overlap.x - real_page_area.x,
3515                                                  overlap.y - real_page_area.y);
3516
3517                 cairo_set_source_surface (cr, selection_surface, 0, 0);
3518                 cairo_paint (cr);
3519                 cairo_destroy (cr);
3520         }
3521 }
3522
3523 /*** GObject functions ***/
3524
3525 static void
3526 ev_view_finalize (GObject *object)
3527 {
3528         EvView *view = EV_VIEW (object);
3529
3530         g_free (view->status);
3531         g_free (view->find_status);
3532
3533         clear_selection (view);
3534
3535         if (view->image_dnd_info.image)
3536                 g_object_unref (view->image_dnd_info.image);
3537         view->image_dnd_info.image = NULL;
3538
3539         G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
3540 }
3541
3542 static void
3543 ev_view_destroy (GtkObject *object)
3544 {
3545         EvView *view = EV_VIEW (object);
3546
3547         if (view->document) {
3548                 g_object_unref (view->document);
3549                 view->document = NULL;
3550         }
3551
3552         if (view->pixbuf_cache) {
3553                 g_object_unref (view->pixbuf_cache);
3554                 view->pixbuf_cache = NULL;
3555         }
3556
3557         if (view->link_tooltip) {
3558                 gtk_widget_destroy (view->link_tooltip);
3559                 view->link_tooltip = NULL;
3560         }
3561
3562         if (view->goto_window) {
3563                 gtk_widget_destroy (view->goto_window);
3564                 view->goto_window = NULL;
3565                 view->goto_entry = NULL;
3566         }
3567
3568         if (view->selection_scroll_id) {
3569             g_source_remove (view->selection_scroll_id);
3570             view->selection_scroll_id = 0;
3571         }
3572
3573         if (view->selection_update_id) {
3574             g_source_remove (view->selection_update_id);
3575             view->selection_update_id = 0;
3576         }
3577
3578         if (view->loading_text) {
3579                 cairo_surface_destroy (view->loading_text);
3580                 view->loading_text = NULL;
3581         }
3582
3583         ev_view_presentation_transition_stop (view);
3584
3585         ev_view_set_scroll_adjustments (GTK_LAYOUT (view), NULL, NULL);
3586
3587         GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
3588 }
3589
3590 static void
3591 ev_view_set_property (GObject      *object,
3592                       guint         prop_id,
3593                       const GValue *value,
3594                       GParamSpec   *pspec)
3595 {
3596         EvView *view = EV_VIEW (object);
3597
3598         switch (prop_id) {
3599                 case PROP_CONTINUOUS:
3600                         ev_view_set_continuous (view, g_value_get_boolean (value));
3601                         break;
3602                 case PROP_DUAL_PAGE:
3603                         ev_view_set_dual_page (view, g_value_get_boolean (value));
3604                         break;
3605                 case PROP_FULLSCREEN:
3606                         ev_view_set_fullscreen (view, g_value_get_boolean (value));
3607                         break;
3608                 case PROP_PRESENTATION:
3609                         ev_view_set_presentation (view, g_value_get_boolean (value));
3610                         break;
3611                 case PROP_SIZING_MODE:
3612                         ev_view_set_sizing_mode (view, g_value_get_enum (value));
3613                         break;
3614                 case PROP_ZOOM:
3615                         ev_view_set_zoom (view, g_value_get_double (value), FALSE);
3616                         break;
3617                 case PROP_ROTATION:
3618                         ev_view_set_rotation (view, g_value_get_int (value));
3619                         break;
3620                 default:
3621                         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3622         }
3623 }
3624
3625 static AtkObject *
3626 ev_view_get_accessible (GtkWidget *widget)
3627 {
3628         static gboolean first_time = TRUE;
3629
3630         if (first_time) {
3631                 AtkObjectFactory *factory;
3632                 AtkRegistry *registry;
3633                 GType derived_type;
3634                 GType derived_atk_type;
3635
3636                 /*
3637                  * Figure out whether accessibility is enabled by looking at the
3638                  * type of the accessible object which would be created for
3639                  * the parent type of EvView.
3640                  */
3641                 derived_type = g_type_parent (EV_TYPE_VIEW);
3642
3643                 registry = atk_get_default_registry ();
3644                 factory = atk_registry_get_factory (registry,
3645                                                     derived_type);
3646                 derived_atk_type = atk_object_factory_get_accessible_type (factory);
3647                 if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
3648                         atk_registry_set_factory_type (registry,
3649                                                        EV_TYPE_VIEW,
3650                                                        ev_view_accessible_factory_get_type ());
3651                 first_time = FALSE;
3652         }
3653         return GTK_WIDGET_CLASS (ev_view_parent_class)->get_accessible (widget);
3654 }
3655
3656 static void
3657 ev_view_get_property (GObject *object,
3658                       guint prop_id,
3659                       GValue *value,
3660                       GParamSpec *pspec)
3661 {
3662         EvView *view = EV_VIEW (object);
3663
3664         switch (prop_id) {
3665                 case PROP_STATUS:
3666                         g_value_set_string (value, view->status);
3667                         break;
3668                 case PROP_FIND_STATUS:
3669                         g_value_set_string (value, view->status);
3670                         break;
3671                 case PROP_CONTINUOUS:
3672                         g_value_set_boolean (value, view->continuous);
3673                         break;
3674                 case PROP_DUAL_PAGE:
3675                         g_value_set_boolean (value, view->dual_page);
3676                         break;
3677                 case PROP_FULLSCREEN:
3678                         g_value_set_boolean (value, view->fullscreen);
3679                         break;
3680                 case PROP_PRESENTATION:
3681                         g_value_set_boolean (value, view->presentation);
3682                         break;
3683                 case PROP_SIZING_MODE:
3684                         g_value_set_enum (value, view->sizing_mode);
3685                         break;
3686                 case PROP_ZOOM:
3687                         g_value_set_double (value, view->scale);
3688                         break;
3689                 case PROP_ROTATION:
3690                         g_value_set_int (value, view->rotation);
3691                         break;
3692                 case PROP_HAS_SELECTION:
3693                         g_value_set_boolean (value,
3694                                              view->selection_info.selections != NULL);
3695                         break;
3696                 default:
3697                         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3698         }
3699 }
3700
3701 static void
3702 ev_view_class_init (EvViewClass *class)
3703 {
3704         GObjectClass *object_class = G_OBJECT_CLASS (class);
3705         GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
3706         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
3707         GtkLayoutClass *layout_class = GTK_LAYOUT_CLASS (class);
3708         GtkBindingSet *binding_set;
3709
3710         object_class->finalize = ev_view_finalize;
3711         object_class->set_property = ev_view_set_property;
3712         object_class->get_property = ev_view_get_property;
3713
3714         widget_class->expose_event = ev_view_expose_event;
3715         widget_class->button_press_event = ev_view_button_press_event;
3716         widget_class->motion_notify_event = ev_view_motion_notify_event;
3717         widget_class->button_release_event = ev_view_button_release_event;
3718         widget_class->key_press_event = ev_view_key_press_event;
3719         widget_class->focus_in_event = ev_view_focus_in;
3720         widget_class->focus_out_event = ev_view_focus_out;
3721         widget_class->get_accessible = ev_view_get_accessible;
3722         widget_class->size_request = ev_view_size_request;
3723         widget_class->size_allocate = ev_view_size_allocate;
3724         widget_class->realize = ev_view_realize;
3725         widget_class->scroll_event = ev_view_scroll_event;
3726         widget_class->enter_notify_event = ev_view_enter_notify_event;
3727         widget_class->leave_notify_event = ev_view_leave_notify_event;
3728         widget_class->style_set = ev_view_style_set;
3729         widget_class->drag_data_get = ev_view_drag_data_get;
3730         widget_class->drag_motion = ev_view_drag_motion;
3731         widget_class->drag_data_received = ev_view_drag_data_received;
3732         widget_class->popup_menu = ev_view_popup_menu;
3733
3734         gtk_object_class->destroy = ev_view_destroy;
3735
3736         layout_class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
3737
3738         class->binding_activated = ev_view_scroll;
3739
3740         signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
3741                          G_TYPE_FROM_CLASS (object_class),
3742                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3743                          G_STRUCT_OFFSET (EvViewClass, binding_activated),
3744                          NULL, NULL,
3745                          ev_marshal_VOID__ENUM_BOOLEAN,
3746                          G_TYPE_NONE, 2,
3747                          GTK_TYPE_SCROLL_TYPE,
3748                          G_TYPE_BOOLEAN);
3749
3750         signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
3751                          G_TYPE_FROM_CLASS (object_class),
3752                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3753                          G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
3754                          NULL, NULL,
3755                          ev_marshal_VOID__VOID,
3756                          G_TYPE_NONE, 0, G_TYPE_NONE);
3757         signals[SIGNAL_HANDLE_LINK] = g_signal_new ("handle-link",
3758                          G_TYPE_FROM_CLASS (object_class),
3759                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3760                          G_STRUCT_OFFSET (EvViewClass, handle_link),
3761                          NULL, NULL,
3762                          g_cclosure_marshal_VOID__OBJECT,
3763                          G_TYPE_NONE, 1,
3764                          G_TYPE_OBJECT);
3765         signals[SIGNAL_EXTERNAL_LINK] = g_signal_new ("external-link",
3766                          G_TYPE_FROM_CLASS (object_class),
3767                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3768                          G_STRUCT_OFFSET (EvViewClass, external_link),
3769                          NULL, NULL,
3770                          g_cclosure_marshal_VOID__OBJECT,
3771                          G_TYPE_NONE, 1,
3772                          G_TYPE_OBJECT);
3773         signals[SIGNAL_POPUP_MENU] = g_signal_new ("popup",
3774                          G_TYPE_FROM_CLASS (object_class),
3775                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3776                          G_STRUCT_OFFSET (EvViewClass, popup_menu),
3777                          NULL, NULL,
3778                          g_cclosure_marshal_VOID__OBJECT,
3779                          G_TYPE_NONE, 1,
3780                          G_TYPE_OBJECT);
3781
3782         g_object_class_install_property (object_class,
3783                                          PROP_STATUS,
3784                                          g_param_spec_string ("status",
3785                                                               "Status Message",
3786                                                               "The status message",
3787                                                               NULL,
3788                                                               G_PARAM_READABLE));
3789
3790         g_object_class_install_property (object_class,
3791                                          PROP_FIND_STATUS,
3792                                          g_param_spec_string ("find-status",
3793                                                               "Find Status Message",
3794                                                               "The find status message",
3795                                                               NULL,
3796                                                               G_PARAM_READABLE));
3797
3798         g_object_class_install_property (object_class,
3799                                          PROP_CONTINUOUS,
3800                                          g_param_spec_boolean ("continuous",
3801                                                                "Continuous",
3802                                                                "Continuous scrolling mode",
3803                                                                TRUE,
3804                                                                G_PARAM_READWRITE));
3805
3806         g_object_class_install_property (object_class,
3807                                          PROP_DUAL_PAGE,
3808                                          g_param_spec_boolean ("dual-page",
3809                                                                "Dual Page",
3810                                                                "Two pages visible at once",
3811                                                                FALSE,
3812                                                                G_PARAM_READWRITE));
3813         g_object_class_install_property (object_class,
3814                                          PROP_FULLSCREEN,
3815                                          g_param_spec_boolean ("fullscreen",
3816                                                                "Full Screen",
3817                                                                "Draw page in a fullscreen fashion",
3818                                                                FALSE,
3819                                                                G_PARAM_READWRITE));
3820         g_object_class_install_property (object_class,
3821                                          PROP_PRESENTATION,
3822                                          g_param_spec_boolean ("presentation",
3823                                                                "Presentation",
3824                                                                "Draw page in presentation mode",
3825                                                                TRUE,
3826                                                                G_PARAM_READWRITE));
3827
3828         g_object_class_install_property (object_class,
3829                                          PROP_SIZING_MODE,
3830                                          g_param_spec_enum ("sizing-mode",
3831                                                             "Sizing Mode",
3832                                                             "Sizing Mode",
3833                                                             EV_TYPE_SIZING_MODE,
3834                                                             EV_SIZING_FIT_WIDTH,
3835                                                             G_PARAM_READWRITE));
3836
3837         g_object_class_install_property (object_class,
3838                                          PROP_ZOOM,
3839                                          g_param_spec_double ("zoom",
3840                                                               "Zoom factor",
3841                                                               "Zoom factor",
3842                                                               0,
3843                                                               G_MAXDOUBLE,
3844                                                               1.0,
3845                                                               G_PARAM_READWRITE));
3846         g_object_class_install_property (object_class,
3847                                          PROP_ROTATION,
3848                                          g_param_spec_double ("rotation",
3849                                                               "Rotation",
3850                                                               "Rotation",
3851                                                               0,
3852                                                               360,
3853                                                               0,
3854                                                               G_PARAM_READWRITE));
3855         g_object_class_install_property (object_class,
3856                                          PROP_HAS_SELECTION,
3857                                          g_param_spec_boolean ("has-selection",
3858                                                                "Has selection",
3859                                                                "The view has selections",
3860                                                                FALSE,
3861                                                                G_PARAM_READABLE));
3862
3863         binding_set = gtk_binding_set_by_class (class);
3864
3865         add_scroll_binding_keypad (binding_set, GDK_Left,  0, EV_SCROLL_STEP_BACKWARD, TRUE);
3866         add_scroll_binding_keypad (binding_set, GDK_Right, 0, EV_SCROLL_STEP_FORWARD,  TRUE);
3867         add_scroll_binding_keypad (binding_set, GDK_Left,  GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, TRUE);
3868         add_scroll_binding_keypad (binding_set, GDK_Right, GDK_MOD1_MASK, EV_SCROLL_STEP_UP,  TRUE);
3869         add_scroll_binding_keypad (binding_set, GDK_Up,    0, EV_SCROLL_STEP_BACKWARD, FALSE);
3870         add_scroll_binding_keypad (binding_set, GDK_Down,  0, EV_SCROLL_STEP_FORWARD,  FALSE);
3871         add_scroll_binding_keypad (binding_set, GDK_Up,    GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, FALSE);
3872         add_scroll_binding_keypad (binding_set, GDK_Down,  GDK_MOD1_MASK, EV_SCROLL_STEP_UP,  FALSE);
3873 }
3874
3875 static void
3876 ev_view_init (EvView *view)
3877 {
3878         GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
3879
3880         view->spacing = 5;
3881         view->scale = 1.0;
3882         view->current_page = 0;
3883         view->pressed_button = -1;
3884         view->cursor = EV_VIEW_CURSOR_NORMAL;
3885         view->drag_info.in_drag = FALSE;
3886         view->selection_info.selections = NULL;
3887         view->selection_info.in_selection = FALSE;
3888         view->selection_info.in_drag = FALSE;
3889         view->selection_mode = EV_VIEW_SELECTION_TEXT;
3890         view->continuous = TRUE;
3891         view->dual_page = FALSE;
3892         view->presentation = FALSE;
3893         view->presentation_state = EV_PRESENTATION_NORMAL;
3894         view->fullscreen = FALSE;
3895         view->sizing_mode = EV_SIZING_FIT_WIDTH;
3896         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
3897         view->jump_to_find_result = TRUE;
3898
3899         gtk_layout_set_hadjustment (GTK_LAYOUT (view), NULL);
3900         gtk_layout_set_vadjustment (GTK_LAYOUT (view), NULL);
3901
3902         gtk_drag_dest_set (GTK_WIDGET (view),
3903                            GTK_DEST_DEFAULT_ALL,
3904                            view_drop_targets,
3905                            G_N_ELEMENTS (view_drop_targets),
3906                            GDK_ACTION_COPY);
3907 }
3908
3909 /*** Callbacks ***/
3910
3911 static void
3912 find_changed_cb (EvDocument *document, int page, EvView *view)
3913 {
3914         double percent;
3915         int n_pages;
3916
3917         percent = ev_document_find_get_progress
3918                         (EV_DOCUMENT_FIND (view->document));
3919         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3920
3921         if (view->jump_to_find_result == TRUE) {
3922                 jump_to_find_page (view, EV_VIEW_FIND_NEXT, 0);
3923                 jump_to_find_result (view);
3924         }
3925         update_find_status_message (view, percent * n_pages >= n_pages - 1 );
3926         if (view->current_page == page)
3927                 gtk_widget_queue_draw (GTK_WIDGET (view));
3928 }
3929
3930 static void
3931 job_finished_cb (EvPixbufCache *pixbuf_cache,
3932                  GdkRegion     *region,
3933                  EvView        *view)
3934 {
3935         if (region) {
3936                 gdk_window_invalidate_region (view->layout.bin_window,
3937                                               region, TRUE);
3938         } else {
3939                 gtk_widget_queue_draw (GTK_WIDGET (view));
3940         }
3941 }
3942
3943 static void
3944 page_changed_cb (EvPageCache *page_cache,
3945                  int          new_page,
3946                  EvView      *view)
3947 {
3948         if (view->current_page != new_page) {
3949                 gint x, y;
3950
3951                 view->current_page = new_page;
3952                 view->pending_scroll = SCROLL_TO_PAGE_POSITION;
3953
3954                 if (view->presentation)
3955                         ev_view_presentation_transition_start (view);
3956
3957                 gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
3958                 ev_view_handle_cursor_over_xy (view, x, y);
3959
3960                 gtk_widget_queue_resize (GTK_WIDGET (view));
3961         } else {
3962                 gtk_widget_queue_draw (GTK_WIDGET (view));
3963         }
3964
3965         if (EV_IS_DOCUMENT_FIND (view->document)) {
3966                 view->find_result = 0;
3967                 update_find_status_message (view, TRUE);
3968         }
3969 }
3970
3971 static void
3972 on_adjustment_value_changed (GtkAdjustment *adjustment,
3973                              EvView        *view)
3974 {
3975         int dx = 0, dy = 0;
3976         gint x, y;
3977         GList *children, *l;
3978
3979         if (! GTK_WIDGET_REALIZED (view))
3980                 return;
3981
3982         if (view->hadjustment) {
3983                 dx = view->scroll_x - (int) view->hadjustment->value;
3984                 view->scroll_x = (int) view->hadjustment->value;
3985         } else {
3986                 view->scroll_x = 0;
3987         }
3988
3989         if (view->vadjustment) {
3990                 dy = view->scroll_y - (int) view->vadjustment->value;
3991                 view->scroll_y = (int) view->vadjustment->value;
3992         } else {
3993                 view->scroll_y = 0;
3994         }
3995
3996         children = gtk_container_get_children (GTK_CONTAINER (view));
3997         for (l = children; l && l->data; l = g_list_next (l)) {
3998                 gint       child_x, child_y;
3999                 GtkWidget *child = (GtkWidget *)l->data;
4000
4001                 gtk_container_child_get (GTK_CONTAINER (view),
4002                                          child,
4003                                          "x", &child_x,
4004                                          "y", &child_y,
4005                                          NULL);
4006                 gtk_layout_move (GTK_LAYOUT (view), child, child_x + dx, child_y + dy);
4007         }
4008         g_list_free (children);
4009
4010         if (view->pending_resize)
4011                 gtk_widget_queue_draw (GTK_WIDGET (view));
4012         else
4013                 gdk_window_scroll (view->layout.bin_window, dx, dy);
4014
4015         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
4016         ev_view_handle_cursor_over_xy (view, x, y);
4017
4018         if (view->document)
4019                 view_update_range_and_current_page (view);
4020 }
4021
4022 GtkWidget*
4023 ev_view_new (void)
4024 {
4025         GtkWidget *view;
4026
4027         view = g_object_new (EV_TYPE_VIEW, NULL);
4028
4029         return view;
4030 }
4031
4032 static void
4033 setup_caches (EvView *view)
4034 {
4035         view->page_cache = ev_page_cache_get (view->document);
4036         g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
4037         view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
4038         g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
4039         page_changed_cb (view->page_cache,
4040                          ev_page_cache_get_current_page (view->page_cache),
4041                          view);
4042 }
4043
4044 static void
4045 clear_caches (EvView *view)
4046 {
4047         if (view->pixbuf_cache) {
4048                 g_object_unref (view->pixbuf_cache);
4049                 view->pixbuf_cache = NULL;
4050         }
4051
4052         if (view->page_cache) {
4053                 view->page_cache = NULL;
4054         }
4055 }
4056
4057 void
4058 ev_view_set_loading (EvView       *view,
4059                      gboolean      loading)
4060 {
4061         view->loading = loading;
4062         gtk_widget_queue_draw (GTK_WIDGET (view));
4063 }
4064
4065 void
4066 ev_view_set_document (EvView     *view,
4067                       EvDocument *document)
4068 {
4069         g_return_if_fail (EV_IS_VIEW (view));
4070
4071         view->loading = FALSE;
4072
4073         if (document != view->document) {
4074                 clear_caches (view);
4075
4076                 if (view->document) {
4077                         g_signal_handlers_disconnect_by_func (view->document,
4078                                                               find_changed_cb,
4079                                                               view);
4080                         g_object_unref (view->document);
4081                         view->page_cache = NULL;
4082
4083                 }
4084
4085                 view->document = document;
4086                 view->find_result = 0;
4087
4088                 if (view->document) {
4089                         g_object_ref (view->document);
4090                         if (EV_IS_DOCUMENT_FIND (view->document)) {
4091                                 g_signal_connect (view->document,
4092                                                   "find_changed",
4093                                                   G_CALLBACK (find_changed_cb),
4094                                                   view);
4095                         }
4096
4097                         setup_caches (view);
4098                 }
4099
4100                 gtk_widget_queue_resize (GTK_WIDGET (view));
4101         }
4102 }
4103
4104 /*** Zoom and sizing mode ***/
4105
4106 #define EPSILON 0.0000001
4107 void
4108 ev_view_set_zoom (EvView   *view,
4109                   double    factor,
4110                   gboolean  relative)
4111 {
4112         double scale;
4113
4114         if (relative)
4115                 scale = view->scale * factor;
4116         else
4117                 scale = factor;
4118
4119         scale = CLAMP (scale, view->min_scale, view->max_scale);
4120
4121         if (ABS (view->scale - scale) < EPSILON)
4122                 return;
4123
4124         if (view->loading_text) {
4125                 cairo_surface_destroy (view->loading_text);
4126                 view->loading_text = NULL;
4127         }
4128
4129         view->scale = scale;
4130         view->pending_resize = TRUE;
4131
4132         gtk_widget_queue_resize (GTK_WIDGET (view));
4133
4134         g_object_notify (G_OBJECT (view), "zoom");
4135 }
4136
4137 double
4138 ev_view_get_zoom (EvView *view)
4139 {
4140         return view->scale;
4141 }
4142
4143 void
4144 ev_view_set_screen_dpi (EvView  *view,
4145                         gdouble  dpi)
4146 {
4147         g_return_if_fail (EV_IS_VIEW (view));
4148         g_return_if_fail (dpi > 0);
4149
4150         view->dpi = dpi;
4151         view->min_scale = MIN_SCALE * dpi / 72.0;
4152         view->max_scale = MAX_SCALE * dpi / 72.0;
4153 }
4154
4155 gboolean
4156 ev_view_get_continuous (EvView *view)
4157 {
4158         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4159
4160         return view->continuous;
4161 }
4162
4163 void
4164 ev_view_set_continuous (EvView   *view,
4165                         gboolean  continuous)
4166 {
4167         g_return_if_fail (EV_IS_VIEW (view));
4168
4169         continuous = continuous != FALSE;
4170
4171         if (view->continuous != continuous) {
4172                 view->continuous = continuous;
4173                 view->pending_scroll = SCROLL_TO_PAGE_POSITION;
4174                 gtk_widget_queue_resize (GTK_WIDGET (view));
4175         }
4176
4177         g_object_notify (G_OBJECT (view), "continuous");
4178 }
4179
4180 gboolean
4181 ev_view_get_dual_page (EvView *view)
4182 {
4183         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4184
4185         return view->dual_page;
4186 }
4187
4188 void
4189 ev_view_set_dual_page (EvView   *view,
4190                        gboolean  dual_page)
4191 {
4192         g_return_if_fail (EV_IS_VIEW (view));
4193
4194         dual_page = dual_page != FALSE;
4195
4196         if (view->dual_page == dual_page)
4197                 return;
4198
4199         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
4200         view->dual_page = dual_page;
4201         /* FIXME: if we're keeping the pixbuf cache around, we should extend the
4202          * preload_cache_size to be 2 if dual_page is set.
4203          */
4204         gtk_widget_queue_resize (GTK_WIDGET (view));
4205
4206         g_object_notify (G_OBJECT (view), "dual-page");
4207 }
4208
4209 void
4210 ev_view_set_fullscreen (EvView   *view,
4211                          gboolean  fullscreen)
4212 {
4213         g_return_if_fail (EV_IS_VIEW (view));
4214
4215         fullscreen = fullscreen != FALSE;
4216
4217         if (view->fullscreen == fullscreen)
4218                 return;
4219
4220         view->fullscreen = fullscreen;
4221         gtk_widget_queue_resize (GTK_WIDGET (view));
4222
4223         g_object_notify (G_OBJECT (view), "fullscreen");
4224 }
4225
4226 gboolean
4227 ev_view_get_fullscreen (EvView *view)
4228 {
4229         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4230
4231         return view->fullscreen;
4232 }
4233
4234 void
4235 ev_view_set_presentation (EvView   *view,
4236                           gboolean  presentation)
4237 {
4238         g_return_if_fail (EV_IS_VIEW (view));
4239
4240         presentation = presentation != FALSE;
4241
4242         if (view->presentation == presentation)
4243                 return;
4244
4245         if (!presentation)
4246                 view->presentation_state = EV_PRESENTATION_NORMAL;
4247
4248         view->presentation = presentation;
4249         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
4250
4251         if (presentation) {
4252                 view->sizing_mode_saved = view->sizing_mode;
4253                 view->scale_saved = view->scale;
4254                 ev_view_set_sizing_mode (view, EV_SIZING_BEST_FIT);
4255         } else {
4256                 ev_view_set_sizing_mode (view, view->sizing_mode_saved);
4257                 ev_view_set_zoom (view, view->scale_saved, FALSE);
4258         }
4259
4260         gtk_widget_queue_resize (GTK_WIDGET (view));
4261
4262         if (presentation)
4263                 ev_view_presentation_transition_start (view);
4264         else
4265                 ev_view_presentation_transition_stop (view);
4266
4267         if (GTK_WIDGET_REALIZED (view)) {
4268                 if (view->presentation)
4269                         gdk_window_set_background (view->layout.bin_window,
4270                                                    &GTK_WIDGET (view)->style->black);
4271                 else
4272                         gdk_window_set_background (view->layout.bin_window,
4273                                                    &GTK_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
4274         }
4275
4276         g_object_notify (G_OBJECT (view), "presentation");
4277 }
4278
4279 gboolean
4280 ev_view_get_presentation (EvView *view)
4281 {
4282         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4283
4284         return view->presentation;
4285 }
4286
4287 static gboolean
4288 transition_next_page (EvView *view)
4289 {
4290         ev_view_next_page (view);
4291
4292         return FALSE;
4293 }
4294
4295 static void
4296 ev_view_presentation_transition_stop (EvView *view)
4297 {
4298         if (view->trans_timeout_id > 0)
4299                 g_source_remove (view->trans_timeout_id);
4300         view->trans_timeout_id = 0;
4301 }
4302
4303 static void
4304 ev_view_presentation_transition_start (EvView *view)
4305 {
4306         gdouble duration;
4307
4308         if (!EV_IS_DOCUMENT_TRANSITION (view->document))
4309                 return;
4310
4311         ev_view_presentation_transition_stop (view);
4312
4313         duration = ev_document_transition_get_page_duration (EV_DOCUMENT_TRANSITION (view->document),
4314                                                              view->current_page);
4315         if (duration > 0)
4316                 view->trans_timeout_id = g_timeout_add (duration * 1000,
4317                                                         (GSourceFunc) transition_next_page,
4318                                                         view);
4319 }
4320
4321 void
4322 ev_view_set_sizing_mode (EvView       *view,
4323                          EvSizingMode  sizing_mode)
4324 {
4325         g_return_if_fail (EV_IS_VIEW (view));
4326
4327         if (view->sizing_mode == sizing_mode)
4328                 return;
4329
4330         view->sizing_mode = sizing_mode;
4331         gtk_widget_queue_resize (GTK_WIDGET (view));
4332
4333         g_object_notify (G_OBJECT (view), "sizing-mode");
4334 }
4335
4336 EvSizingMode
4337 ev_view_get_sizing_mode (EvView *view)
4338 {
4339         g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
4340
4341         return view->sizing_mode;
4342 }
4343
4344 gboolean
4345 ev_view_can_zoom_in (EvView *view)
4346 {
4347         return view->scale * ZOOM_IN_FACTOR <= view->max_scale;
4348 }
4349
4350 gboolean
4351 ev_view_can_zoom_out (EvView *view)
4352 {
4353         return view->scale * ZOOM_OUT_FACTOR >= view->min_scale;
4354 }
4355
4356 void
4357 ev_view_zoom_in (EvView *view)
4358 {
4359         g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
4360
4361         if (view->presentation)
4362                 return;
4363
4364         view->pending_scroll = SCROLL_TO_CENTER;
4365         ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
4366 }
4367
4368 void
4369 ev_view_zoom_out (EvView *view)
4370 {
4371         g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
4372
4373         if (view->presentation)
4374                 return;
4375
4376         view->pending_scroll = SCROLL_TO_CENTER;
4377         ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
4378 }
4379
4380 void
4381 ev_view_rotate_right (EvView *view)
4382 {
4383         int rotation = view->rotation + 90;
4384
4385         if (rotation >= 360) {
4386                 rotation -= 360;
4387         }
4388
4389         ev_view_set_rotation (view, rotation);
4390 }
4391
4392 void
4393 ev_view_rotate_left (EvView *view)
4394 {
4395         int rotation = view->rotation - 90;
4396
4397         if (rotation < 0) {
4398                 rotation += 360;
4399         }
4400
4401         ev_view_set_rotation (view, rotation);
4402 }
4403
4404 void
4405 ev_view_set_rotation (EvView *view, int rotation)
4406 {
4407         view->rotation = rotation;
4408
4409         if (view->pixbuf_cache) {
4410                 ev_pixbuf_cache_clear (view->pixbuf_cache);
4411                 gtk_widget_queue_resize (GTK_WIDGET (view));
4412         }
4413
4414         if (rotation != 0)
4415                 clear_selection (view);
4416
4417         g_object_notify (G_OBJECT (view), "rotation");
4418 }
4419
4420 int
4421 ev_view_get_rotation (EvView *view)
4422 {
4423         return view->rotation;
4424 }
4425
4426 static double
4427 zoom_for_size_fit_width (int doc_width,
4428                          int doc_height,
4429                          int target_width,
4430                          int target_height,
4431                          int vsb_width)
4432 {
4433         double scale;
4434
4435         scale = (double)target_width / doc_width;
4436
4437         if (doc_height * scale > target_height)
4438                 scale = (double) (target_width - vsb_width) / doc_width;
4439
4440         return scale;
4441 }
4442
4443 static double
4444 zoom_for_size_fit_height (int doc_width,
4445                           int doc_height,
4446                           int target_width,
4447                           int target_height,
4448                           int vsb_height)
4449 {
4450         double scale;
4451
4452         scale = (double)target_height / doc_height;
4453
4454         if (doc_width * scale > target_width)
4455                 scale = (double) (target_height - vsb_height) / doc_height;
4456
4457         return scale;
4458 }
4459
4460 static double
4461 zoom_for_size_best_fit (int doc_width,
4462                         int doc_height,
4463                         int target_width,
4464                         int target_height,
4465                         int vsb_width,
4466                         int hsb_width)
4467 {
4468         double w_scale;
4469         double h_scale;
4470
4471         w_scale = (double)target_width / doc_width;
4472         h_scale = (double)target_height / doc_height;
4473
4474         if (doc_height * w_scale > target_height)
4475                 w_scale = (double) (target_width - vsb_width) / doc_width;
4476         if (doc_width * h_scale > target_width)
4477                 h_scale = (double) (target_height - hsb_width) / doc_height;
4478
4479         return MIN (w_scale, h_scale);
4480 }
4481
4482
4483 static void
4484 ev_view_zoom_for_size_presentation (EvView *view,
4485                                     int     width,
4486                                     int     height)
4487 {
4488         int doc_width, doc_height;
4489         gdouble scale;
4490
4491         ev_page_cache_get_size (view->page_cache,
4492                                 view->current_page,
4493                                 view->rotation,
4494                                 1.0,
4495                                 &doc_width,
4496                                 &doc_height);
4497         scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
4498         ev_view_set_zoom (view, scale, FALSE);
4499 }
4500
4501 static void
4502 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
4503                            int     width,
4504                            int     height,
4505                            int     vsb_width,
4506                            int     hsb_height)
4507 {
4508         int doc_width, doc_height;
4509         GtkBorder border;
4510         gdouble scale;
4511
4512         ev_page_cache_get_max_width (view->page_cache,
4513                                      view->rotation,
4514                                      1.0,
4515                                      &doc_width);
4516         ev_page_cache_get_max_height (view->page_cache,
4517                                       view->rotation,
4518                                       1.0,
4519                                       &doc_height);
4520         compute_border (view, doc_width, doc_height, &border);
4521
4522         doc_width = doc_width * 2;
4523         width -= (2 * (border.left + border.right) + 3 * view->spacing);
4524         height -= (border.top + border.bottom + 2 * view->spacing - 1);
4525
4526         /* FIXME: We really need to calculate the overall height here, not the
4527          * page height.  We assume there's always a vertical scrollbar for
4528          * now.  We need to fix this. */
4529         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4530                 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
4531         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4532                 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
4533         else
4534                 g_assert_not_reached ();
4535
4536         ev_view_set_zoom (view, scale, FALSE);
4537 }
4538
4539 static void
4540 ev_view_zoom_for_size_continuous (EvView *view,
4541                                   int     width,
4542                                   int     height,
4543                                   int     vsb_width,
4544                                   int     hsb_height)
4545 {
4546         int doc_width, doc_height;
4547         GtkBorder border;
4548         gdouble scale;
4549
4550         ev_page_cache_get_max_width (view->page_cache,
4551                                      view->rotation,
4552                                      1.0,
4553                                      &doc_width);
4554         ev_page_cache_get_max_height (view->page_cache,
4555                                       view->rotation,
4556                                       1.0,
4557                                       &doc_height);
4558         compute_border (view, doc_width, doc_height, &border);
4559
4560         width -= (border.left + border.right + 2 * view->spacing);
4561         height -= (border.top + border.bottom + 2 * view->spacing - 1);
4562
4563         /* FIXME: We really need to calculate the overall height here, not the
4564          * page height.  We assume there's always a vertical scrollbar for
4565          * now.  We need to fix this. */
4566         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4567                 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
4568         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4569                 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
4570         else
4571                 g_assert_not_reached ();
4572
4573         ev_view_set_zoom (view, scale, FALSE);
4574 }
4575
4576 static void
4577 ev_view_zoom_for_size_dual_page (EvView *view,
4578                                  int     width,
4579                                  int     height,
4580                                  int     vsb_width,
4581                                  int     hsb_height)
4582 {
4583         GtkBorder border;
4584         gint doc_width, doc_height;
4585         gdouble scale;
4586         gint other_page;
4587
4588         other_page = view->current_page ^ 1;
4589
4590         /* Find the largest of the two. */
4591         ev_page_cache_get_size (view->page_cache,
4592                                 view->current_page,
4593                                 view->rotation,
4594                                 1.0,
4595                                 &doc_width, &doc_height);
4596
4597         if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
4598                 gint width_2, height_2;
4599                 ev_page_cache_get_size (view->page_cache,
4600                                         other_page,
4601                                         view->rotation,
4602                                         1.0,
4603                                         &width_2, &height_2);
4604                 if (width_2 > doc_width)
4605                         doc_width = width_2;
4606                 if (height_2 > doc_height)
4607                         doc_height = height_2;
4608         }
4609         compute_border (view, doc_width, doc_height, &border);
4610
4611         doc_width = doc_width * 2;
4612         width -= ((border.left + border.right)* 2 + 3 * view->spacing);
4613         height -= (border.top + border.bottom + 2 * view->spacing);
4614
4615         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4616                 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
4617         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4618                 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
4619         else
4620                 g_assert_not_reached ();
4621
4622         ev_view_set_zoom (view, scale, FALSE);
4623 }
4624
4625 static void
4626 ev_view_zoom_for_size_single_page (EvView *view,
4627                                    int     width,
4628                                    int     height,
4629                                    int     vsb_width,
4630                                    int     hsb_height)
4631 {
4632         int doc_width, doc_height;
4633         GtkBorder border;
4634         gdouble scale;
4635
4636         ev_page_cache_get_size (view->page_cache,
4637                                 view->current_page,
4638                                 view->rotation,
4639                                 1.0,
4640                                 &doc_width,
4641                                 &doc_height);
4642         /* Get an approximate border */
4643         compute_border (view, width, height, &border);
4644
4645         width -= (border.left + border.right + 2 * view->spacing);
4646         height -= (border.top + border.bottom + 2 * view->spacing);
4647
4648         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4649                 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
4650         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4651                 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
4652         else
4653                 g_assert_not_reached ();
4654
4655         ev_view_set_zoom (view, scale, FALSE);
4656 }
4657
4658 void
4659 ev_view_set_zoom_for_size (EvView *view,
4660                            int     width,
4661                            int     height,
4662                            int     vsb_width,
4663                            int     hsb_height)
4664 {
4665         g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
4666                           view->sizing_mode == EV_SIZING_BEST_FIT);
4667         g_return_if_fail (width >= 0);
4668         g_return_if_fail (height >= 0);
4669
4670         if (view->document == NULL)
4671                 return;
4672
4673         if (view->presentation)
4674                 ev_view_zoom_for_size_presentation (view, width, height);
4675         else if (view->continuous && view->dual_page)
4676                 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
4677         else if (view->continuous)
4678                 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
4679         else if (view->dual_page)
4680                 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
4681         else
4682                 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
4683 }
4684
4685 /*** Status text messages ***/
4686
4687 const char *
4688 ev_view_get_status (EvView *view)
4689 {
4690         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
4691
4692         return view->status;
4693 }
4694
4695 static void
4696 ev_view_set_status (EvView *view, const char *message)
4697 {
4698         g_return_if_fail (EV_IS_VIEW (view));
4699
4700         if (message != view->status) {
4701                 g_free (view->status);
4702                 view->status = g_strdup (message);
4703                 g_object_notify (G_OBJECT (view), "status");
4704         }
4705 }
4706
4707 static void
4708 update_find_status_message (EvView *view, gboolean this_page)
4709 {
4710         char *message;
4711
4712         if (this_page) {
4713                 int results;
4714
4715                 results = ev_document_find_get_n_results
4716                                 (EV_DOCUMENT_FIND (view->document),
4717                                  view->current_page);
4718                 /* TRANS: Sometimes this could be better translated as
4719                    "%d hit(s) on this page".  Therefore this string
4720                    contains plural cases. */
4721                 message = g_strdup_printf (ngettext ("%d found on this page",
4722                                                      "%d found on this page",
4723                                                      results),
4724                                            results);
4725         } else {
4726                 double percent;
4727
4728                 percent = ev_document_find_get_progress
4729                                 (EV_DOCUMENT_FIND (view->document));
4730                 message = g_strdup_printf (_("%3d%% remaining to search"),
4731                                            (int) ((1.0 - percent) * 100));
4732
4733         }
4734         ev_view_set_find_status (view, message);
4735         g_free (message);
4736 }
4737
4738 const char *
4739 ev_view_get_find_status (EvView *view)
4740 {
4741         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
4742
4743         return view->find_status;
4744 }
4745
4746 static void
4747 ev_view_set_find_status (EvView *view, const char *message)
4748 {
4749         g_return_if_fail (EV_IS_VIEW (view));
4750
4751         g_free (view->find_status);
4752         view->find_status = g_strdup (message);
4753         g_object_notify (G_OBJECT (view), "find-status");
4754 }
4755
4756 /*** Find ***/
4757
4758 static void
4759 jump_to_find_result (EvView *view)
4760 {
4761         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
4762         EvRectangle rect;
4763         GdkRectangle view_rect;
4764         int n_results;
4765         int page = view->current_page;
4766
4767         n_results = ev_document_find_get_n_results (find, page);
4768
4769         if (n_results > 0  && view->find_result < n_results) {
4770                 ev_document_find_get_result
4771                         (find, page, view->find_result, &rect);
4772
4773                 doc_rect_to_view_rect (view, page, &rect, &view_rect);
4774                 ensure_rectangle_is_visible (view, &view_rect);
4775         }
4776 }
4777
4778 /**
4779  * jump_to_find_page
4780  * @view: #EvView instance
4781  * @direction: Direction to look
4782  * @shift: Shift from current page
4783  *
4784  * Jumps to the first page that has occurences of searched word.
4785  * Uses a direction where to look and a shift from current page.
4786  *
4787  */
4788 static void
4789 jump_to_find_page (EvView *view, EvViewFindDirection direction, gint shift)
4790 {
4791         int n_pages, i;
4792
4793         n_pages = ev_page_cache_get_n_pages (view->page_cache);
4794
4795         for (i = 0; i < n_pages; i++) {
4796                 int has_results;
4797                 int page;
4798
4799                 if (direction == EV_VIEW_FIND_NEXT)
4800                         page = view->current_page + i;
4801                 else
4802                         page = view->current_page - i;
4803                 page += shift;
4804
4805                 if (page >= n_pages) {
4806                         page = page - n_pages;
4807                 }
4808                 if (page < 0)
4809                         page = page + n_pages;
4810
4811                 has_results = ev_document_find_page_has_results
4812                                 (EV_DOCUMENT_FIND (view->document), page);
4813                 if (has_results == -1) {
4814                         break;
4815                 } else if (has_results == 1) {
4816                         ev_page_cache_set_current_page (view->page_cache, page);
4817                         break;
4818                 }
4819         }
4820 }
4821
4822 gboolean
4823 ev_view_can_find_next (EvView *view)
4824 {
4825         if (EV_IS_DOCUMENT_FIND (view->document)) {
4826                 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
4827                 int i, n_pages;
4828
4829                 n_pages = ev_page_cache_get_n_pages (view->page_cache);
4830                 for (i = 0; i < n_pages; i++) {
4831                         if (ev_document_find_get_n_results (find, i) > 0) {
4832                                 return TRUE;
4833                         }
4834                 }
4835         }
4836
4837         return FALSE;
4838 }
4839
4840 void
4841 ev_view_find_next (EvView *view)
4842 {
4843         int n_results, n_pages;
4844         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
4845
4846         n_results = ev_document_find_get_n_results (find, view->current_page);
4847
4848         n_pages = ev_page_cache_get_n_pages (view->page_cache);
4849
4850         view->find_result++;
4851
4852         if (view->find_result >= n_results) {
4853
4854                 view->find_result = 0;
4855                 jump_to_find_page (view, EV_VIEW_FIND_NEXT, 1);
4856                 jump_to_find_result (view);
4857         } else {
4858                 jump_to_find_result (view);
4859                 gtk_widget_queue_draw (GTK_WIDGET (view));
4860         }
4861 }
4862
4863 gboolean
4864 ev_view_can_find_previous (EvView *view)
4865 {
4866         if (EV_IS_DOCUMENT_FIND (view->document)) {
4867                 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
4868                 int i, n_pages;
4869
4870                 n_pages = ev_page_cache_get_n_pages (view->page_cache);
4871                 for (i = n_pages - 1; i >= 0; i--) {
4872                         if (ev_document_find_get_n_results (find, i) > 0) {
4873                                 return TRUE;
4874                         }
4875                 }
4876         }
4877
4878         return FALSE;
4879 }
4880 void
4881 ev_view_find_previous (EvView *view)
4882 {
4883         int n_results, n_pages;
4884         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
4885         EvPageCache *page_cache;
4886
4887         page_cache = ev_page_cache_get (view->document);
4888
4889         n_results = ev_document_find_get_n_results (find, view->current_page);
4890
4891         n_pages = ev_page_cache_get_n_pages (page_cache);
4892
4893         view->find_result--;
4894
4895         if (view->find_result < 0) {
4896
4897                 jump_to_find_page (view, EV_VIEW_FIND_PREV, -1);
4898                 view->find_result = ev_document_find_get_n_results (find, view->current_page) - 1;
4899                 jump_to_find_result (view);
4900         } else {
4901                 jump_to_find_result (view);
4902                 gtk_widget_queue_draw (GTK_WIDGET (view));
4903         }
4904 }
4905
4906 void ev_view_search_changed (EvView *view)
4907 {
4908         /* search string has changed, focus on new search result */
4909         view->jump_to_find_result = TRUE;
4910 }
4911
4912 /*** Selections ***/
4913
4914 /* compute_new_selection_rect/text calculates the area currently selected by
4915  * view_rect.  each handles a different mode;
4916  */
4917 static GList *
4918 compute_new_selection_rect (EvView       *view,
4919                             GdkPoint     *start,
4920                             GdkPoint     *stop)
4921 {
4922         GdkRectangle view_rect;
4923         int n_pages, i;
4924         GList *list = NULL;
4925
4926         g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
4927
4928         view_rect.x = MIN (start->x, stop->x);
4929         view_rect.y = MIN (start->y, stop->y);
4930         view_rect.width = MAX (start->x, stop->x) - view_rect.x;
4931         view_rect.width = MAX (start->y, stop->y) - view_rect.y;
4932
4933         n_pages = ev_page_cache_get_n_pages (view->page_cache);
4934
4935         for (i = 0; i < n_pages; i++) {
4936                 GdkRectangle page_area;
4937                 GtkBorder border;
4938
4939                 if (get_page_extents (view, i, &page_area, &border)) {
4940                         GdkRectangle overlap;
4941
4942                         if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
4943                                 EvViewSelection *selection;
4944
4945                                 selection = g_new0 (EvViewSelection, 1);
4946                                 selection->page = i;
4947                                 view_rect_to_doc_rect (view, &overlap, &page_area,
4948                                                        &(selection->rect));
4949
4950                                 list = g_list_append (list, selection);
4951                         }
4952                 }
4953         }
4954
4955         return list;
4956 }
4957
4958 static gboolean
4959 gdk_rectangle_point_in (GdkRectangle *rectangle,
4960                         GdkPoint     *point)
4961 {
4962         return rectangle->x <= point->x &&
4963                 rectangle->y <= point->y &&
4964                 point->x < rectangle->x + rectangle->width &&
4965                 point->y < rectangle->y + rectangle->height;
4966 }
4967
4968 static GList *
4969 compute_new_selection_text (EvView   *view,
4970                             GdkPoint *start,
4971                             GdkPoint *stop)
4972 {
4973         int n_pages, i, first, last;
4974         GList *list = NULL;
4975         EvViewSelection *selection;
4976         gint width, height;
4977         int start_page, end_page;
4978
4979         g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
4980
4981         n_pages = ev_page_cache_get_n_pages (view->page_cache);
4982
4983         /* First figure out the range of pages the selection
4984          * affects. */
4985         first = n_pages;
4986         last = 0;
4987         if (view->continuous) {
4988                 start_page = 0;
4989                 end_page = n_pages;
4990         } else if (view->dual_page) {
4991                 start_page = view->start_page;
4992                 end_page = view->end_page + 1;
4993         } else {
4994                 start_page = view->current_page;
4995                 end_page = view->current_page + 1;
4996         }
4997
4998         for (i = start_page; i < end_page; i++) {
4999                 GdkRectangle page_area;
5000                 GtkBorder border;
5001
5002                 get_page_extents (view, i, &page_area, &border);
5003                 if (gdk_rectangle_point_in (&page_area, start) ||
5004                     gdk_rectangle_point_in (&page_area, stop)) {
5005                         if (first == n_pages)
5006                                 first = i;
5007                         last = i;
5008                 }
5009
5010         }
5011
5012         /* Now create a list of EvViewSelection's for the affected
5013          * pages.  This could be an empty list, a list of just one
5014          * page or a number of pages.*/
5015         for (i = first; i < last + 1; i++) {
5016                 GdkRectangle page_area;
5017                 GtkBorder border;
5018                 GdkPoint *point;
5019
5020                 ev_page_cache_get_size (view->page_cache, i,
5021                                         view->rotation,
5022                                         1.0, &width, &height);
5023
5024                 selection = g_new0 (EvViewSelection, 1);
5025                 selection->page = i;
5026                 selection->rect.x1 = selection->rect.y1 = 0;
5027                 selection->rect.x2 = width;
5028                 selection->rect.y2 = height;
5029
5030                 get_page_extents (view, i, &page_area, &border);
5031
5032                 if (gdk_rectangle_point_in (&page_area, start))
5033                         point = start;
5034                 else
5035                         point = stop;
5036
5037                 if (i == first)
5038                         view_point_to_doc_point (view, point, &page_area,
5039                                                  &selection->rect.x1,
5040                                                  &selection->rect.y1);
5041
5042                 /* If the selection is contained within just one page,
5043                  * make sure we don't write 'start' into both points
5044                  * in selection->rect. */
5045                 if (first == last)
5046                         point = stop;
5047
5048                 if (i == last)
5049                         view_point_to_doc_point (view, point, &page_area,
5050                                                  &selection->rect.x2,
5051                                                  &selection->rect.y2);
5052
5053                 list = g_list_append (list, selection);
5054         }
5055
5056         return list;
5057 }
5058
5059 /* This function takes the newly calculated list, and figures out which regions
5060  * have changed.  It then queues a redraw approporiately.
5061  */
5062 static void
5063 merge_selection_region (EvView *view,
5064                         GList  *new_list)
5065 {
5066         GList *old_list;
5067         GList *new_list_ptr, *old_list_ptr;
5068
5069         /* Update the selection */
5070         old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache);
5071         g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
5072         view->selection_info.selections = new_list;
5073         ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list);
5074         g_object_notify (G_OBJECT (view), "has-selection");
5075
5076         new_list_ptr = new_list;
5077         old_list_ptr = old_list;
5078
5079         while (new_list_ptr || old_list_ptr) {
5080                 EvViewSelection *old_sel, *new_sel;
5081                 int cur_page;
5082                 GdkRegion *region = NULL;
5083
5084                 new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL;
5085                 old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL;
5086
5087                 /* Assume that the lists are in order, and we run through them
5088                  * comparing them, one page at a time.  We come out with the
5089                  * first page we see. */
5090                 if (new_sel && old_sel) {
5091                         if (new_sel->page < old_sel->page) {
5092                                 new_list_ptr = new_list_ptr->next;
5093                                 old_sel = NULL;
5094                         } else if (new_sel->page > old_sel->page) {
5095                                 old_list_ptr = old_list_ptr->next;
5096                                 new_sel = NULL;
5097                         } else {
5098                                 new_list_ptr = new_list_ptr->next;
5099                                 old_list_ptr = old_list_ptr->next;
5100                         }
5101                 } else if (new_sel) {
5102                         new_list_ptr = new_list_ptr->next;
5103                 } else if (old_sel) {
5104                         old_list_ptr = old_list_ptr->next;
5105                 }
5106
5107                 g_assert (new_sel || old_sel);
5108
5109                 /* is the page we're looking at on the screen?*/
5110                 cur_page = new_sel ? new_sel->page : old_sel->page;
5111                 if (cur_page < view->start_page || cur_page > view->end_page)
5112                         continue;
5113
5114                 /* seed the cache with a new page.  We are going to need the new
5115                  * region too. */
5116                 if (new_sel) {
5117                         GdkRegion *tmp_region = NULL;
5118
5119                         ev_pixbuf_cache_get_selection_surface (view->pixbuf_cache,
5120                                                                cur_page,
5121                                                                view->scale,
5122                                                                &tmp_region);
5123
5124                         if (tmp_region) {
5125                                 new_sel->covered_region = gdk_region_copy (tmp_region);
5126                         }
5127                 }
5128
5129                 /* Now we figure out what needs redrawing */
5130                 if (old_sel && new_sel) {
5131                         if (old_sel->covered_region && new_sel->covered_region) {
5132                                 /* We only want to redraw the areas that have
5133                                  * changed, so we xor the old and new regions
5134                                  * and redraw if it's different */
5135                                 region = gdk_region_copy (old_sel->covered_region);
5136                                 gdk_region_xor (region, new_sel->covered_region);
5137                                 if (gdk_region_empty (region)) {
5138                                         gdk_region_destroy (region);
5139                                         region = NULL;
5140                                 }
5141                         } else if (old_sel->covered_region) {
5142                                 region = gdk_region_copy (old_sel->covered_region);
5143                         } else if (new_sel->covered_region) {
5144                                 region = gdk_region_copy (new_sel->covered_region);
5145                         }
5146                 } else if (old_sel && !new_sel) {
5147                         if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) {
5148                                 region = gdk_region_copy (old_sel->covered_region);
5149                         }
5150                 } else if (!old_sel && new_sel) {
5151                         if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) {
5152                                 region = gdk_region_copy (new_sel->covered_region);
5153                         }
5154                 } else {
5155                         g_assert_not_reached ();
5156                 }
5157
5158                 /* Redraw the damaged region! */
5159                 if (region) {
5160                         GdkRectangle page_area;
5161                         GtkBorder border;
5162
5163                         /* I don't know why but the region is smaller
5164                          * than expected. This hack fixes it, I guess
5165                          * 10 pixels more won't hurt
5166                          */
5167                         gdk_region_shrink (region, -5, -5);
5168
5169                         get_page_extents (view, cur_page, &page_area, &border);
5170                         gdk_region_offset (region,
5171                                            page_area.x + border.left - view->scroll_x,
5172                                            page_area.y + border.top - view->scroll_y);
5173                         gdk_window_invalidate_region (view->layout.bin_window, region, TRUE);
5174                         gdk_region_destroy (region);
5175                 }
5176         }
5177
5178         /* Free the old list, now that we're done with it. */
5179         g_list_foreach (old_list, (GFunc) selection_free, NULL);
5180 }
5181
5182 static void
5183 compute_selections (EvView   *view,
5184                     GdkPoint *start,
5185                     GdkPoint *stop)
5186 {
5187         GList *list;
5188
5189         if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
5190                 list = compute_new_selection_rect (view, start, stop);
5191         else
5192                 list = compute_new_selection_text (view, start, stop);
5193         merge_selection_region (view, list);
5194 }
5195
5196 /* Free's the selection.  It's up to the caller to queue redraws if needed.
5197  */
5198 static void
5199 selection_free (EvViewSelection *selection)
5200 {
5201         if (selection->covered_region)
5202                 gdk_region_destroy (selection->covered_region);
5203         g_free (selection);
5204 }
5205
5206 static void
5207 clear_selection (EvView *view)
5208 {
5209         g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
5210         view->selection_info.selections = NULL;
5211         view->selection_info.in_selection = FALSE;
5212         if (view->pixbuf_cache)
5213                 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, NULL);
5214         g_object_notify (G_OBJECT (view), "has-selection");
5215 }
5216
5217
5218 void
5219 ev_view_select_all (EvView *view)
5220 {
5221         int n_pages, i;
5222
5223         /* Disable selection on rotated pages for the 0.4.0 series */
5224         if (view->rotation != 0)
5225                 return;
5226
5227         clear_selection (view);
5228
5229         n_pages = ev_page_cache_get_n_pages (view->page_cache);
5230         for (i = 0; i < n_pages; i++) {
5231                 int width, height;
5232                 EvViewSelection *selection;
5233
5234                 ev_page_cache_get_size (view->page_cache,
5235                                         i,
5236                                         view->rotation,
5237                                         1.0, &width, &height);
5238
5239                 selection = g_new0 (EvViewSelection, 1);
5240                 selection->page = i;
5241                 selection->rect.x1 = selection->rect.y1 = 0;
5242                 selection->rect.x2 = width;
5243                 selection->rect.y2 = height;
5244
5245                 view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
5246         }
5247
5248         ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
5249         g_object_notify (G_OBJECT (view), "has-selection");
5250         gtk_widget_queue_draw (GTK_WIDGET (view));
5251 }
5252
5253 gboolean
5254 ev_view_get_has_selection (EvView *view)
5255 {
5256         return view->selection_info.selections != NULL;
5257 }
5258
5259 static char *
5260 get_selected_text (EvView *ev_view)
5261 {
5262         GString *text;
5263         GList *l;
5264         gchar *normalized_text;
5265
5266         text = g_string_new (NULL);
5267
5268         ev_document_doc_mutex_lock ();
5269
5270         for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
5271                 EvViewSelection *selection = (EvViewSelection *)l->data;
5272                 char *tmp;
5273
5274                 tmp = ev_document_get_text (ev_view->document,
5275                                             selection->page,
5276                                             &selection->rect);
5277                 g_string_append (text, tmp);
5278                 g_free (tmp);
5279         }
5280
5281         ev_document_doc_mutex_unlock ();
5282
5283         normalized_text = g_utf8_normalize (text->str, text->len, G_NORMALIZE_NFKC);
5284         g_string_free (text, TRUE);
5285         return normalized_text;
5286 }
5287
5288 void
5289 ev_view_copy (EvView *ev_view)
5290 {
5291         GtkClipboard *clipboard;
5292         char *text;
5293
5294         if (!ev_document_can_get_text (ev_view->document)) {
5295                 return;
5296         }
5297
5298         text = get_selected_text (ev_view);
5299         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
5300                                               GDK_SELECTION_CLIPBOARD);
5301         gtk_clipboard_set_text (clipboard, text, -1);
5302         g_free (text);
5303 }
5304
5305 static void
5306 ev_view_primary_get_cb (GtkClipboard     *clipboard,
5307                         GtkSelectionData *selection_data,
5308                         guint             info,
5309                         gpointer          data)
5310 {
5311         EvView *ev_view = EV_VIEW (data);
5312         char *text;
5313
5314         if (!ev_document_can_get_text (ev_view->document)) {
5315                 return;
5316         }
5317
5318         text = get_selected_text (ev_view);
5319         if (text) {
5320                 gtk_selection_data_set_text (selection_data, text, -1);
5321                 g_free (text);
5322         }
5323 }
5324
5325 static void
5326 ev_view_primary_clear_cb (GtkClipboard *clipboard,
5327                           gpointer      data)
5328 {
5329         EvView *view = EV_VIEW (data);
5330
5331         clear_selection (view);
5332 }
5333
5334 static void
5335 ev_view_update_primary_selection (EvView *ev_view)
5336 {
5337         GtkClipboard *clipboard;
5338
5339         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
5340                                               GDK_SELECTION_PRIMARY);
5341
5342         if (ev_view->selection_info.selections) {
5343                 if (!gtk_clipboard_set_with_owner (clipboard,
5344                                                    clipboard_targets,
5345                                                    G_N_ELEMENTS (clipboard_targets),
5346                                                    ev_view_primary_get_cb,
5347                                                    ev_view_primary_clear_cb,
5348                                                    G_OBJECT (ev_view)))
5349                         ev_view_primary_clear_cb (clipboard, ev_view);
5350         } else {
5351                 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
5352                         gtk_clipboard_clear (clipboard);
5353         }
5354 }
5355
5356 /*** Cursor operations ***/
5357
5358 static GdkCursor *
5359 ev_view_create_invisible_cursor(void)
5360 {
5361        GdkBitmap *empty;
5362        GdkColor black = { 0, 0, 0, 0 };
5363        static char bits[] = { 0x00 };
5364
5365        empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
5366
5367        return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
5368 }
5369
5370 static void
5371 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
5372 {
5373         GdkCursor *cursor = NULL;
5374         GdkDisplay *display;
5375         GtkWidget *widget;
5376
5377         if (view->cursor == new_cursor) {
5378                 return;
5379         }
5380
5381         widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
5382         display = gtk_widget_get_display (widget);
5383         view->cursor = new_cursor;
5384
5385         switch (new_cursor) {
5386                 case EV_VIEW_CURSOR_NORMAL:
5387                         gdk_window_set_cursor (view->layout.bin_window, NULL);
5388                         break;
5389                 case EV_VIEW_CURSOR_IBEAM:
5390                         cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
5391                         break;
5392                 case EV_VIEW_CURSOR_LINK:
5393                         cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
5394                         break;
5395                 case EV_VIEW_CURSOR_WAIT:
5396                         cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
5397                         break;
5398                 case EV_VIEW_CURSOR_HIDDEN:
5399                         cursor = ev_view_create_invisible_cursor ();
5400                         break;
5401                 case EV_VIEW_CURSOR_DRAG:
5402                         cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
5403                         break;
5404         }
5405
5406         if (cursor) {
5407                 gdk_window_set_cursor (view->layout.bin_window, cursor);
5408                 gdk_cursor_unref (cursor);
5409                 gdk_flush();
5410         }
5411 }
5412
5413 void
5414 ev_view_hide_cursor (EvView *view)
5415 {
5416        ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
5417 }
5418
5419 void
5420 ev_view_show_cursor (EvView *view)
5421 {
5422        ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
5423 }
5424
5425 static void
5426 ev_view_reset_presentation_state (EvView *view)
5427 {
5428         if (!view->presentation ||
5429             view->presentation_state == EV_PRESENTATION_NORMAL)
5430                 return;
5431
5432         view->presentation_state = EV_PRESENTATION_NORMAL;
5433         gdk_window_set_background (view->layout.bin_window,
5434                                    &GTK_WIDGET (view)->style->black);
5435         gtk_widget_queue_draw (GTK_WIDGET (view));
5436 }
5437
5438 gboolean
5439 ev_view_next_page (EvView *view)
5440 {
5441         int page, n_pages;
5442
5443         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
5444
5445         if (!view->page_cache)
5446                 return FALSE;
5447
5448         if (view->presentation &&
5449             (view->presentation_state == EV_PRESENTATION_BLACK ||
5450              view->presentation_state == EV_PRESENTATION_WHITE)) {
5451                 ev_view_reset_presentation_state (view);
5452                 return FALSE;
5453         }
5454
5455         ev_view_presentation_transition_stop (view);
5456         ev_view_reset_presentation_state (view);
5457
5458         page = ev_page_cache_get_current_page (view->page_cache);
5459         n_pages = ev_page_cache_get_n_pages (view->page_cache);
5460
5461         if (view->dual_page && !view->presentation)
5462                 page = page + 2;
5463         else
5464                 page = page + 1;
5465
5466         if (page < n_pages) {
5467                 ev_page_cache_set_current_page (view->page_cache, page);
5468                 return TRUE;
5469         } else if (view->presentation && page == n_pages) {
5470                 view->presentation_state = EV_PRESENTATION_END;
5471                 gtk_widget_queue_draw (GTK_WIDGET (view));
5472                 return TRUE;
5473         } else if (view->dual_page && page == n_pages) {
5474                 ev_page_cache_set_current_page (view->page_cache, page - 1);
5475                 return TRUE;
5476         } else {
5477                 return FALSE;
5478         }
5479 }
5480
5481 gboolean
5482 ev_view_previous_page (EvView *view)
5483 {
5484         int page;
5485
5486         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
5487
5488         if (!view->page_cache)
5489                 return FALSE;
5490
5491         if (view->presentation &&
5492             view->presentation_state == EV_PRESENTATION_END) {
5493                 ev_view_reset_presentation_state (view);
5494                 return TRUE;
5495         }
5496
5497         if (view->presentation &&
5498             (view->presentation_state == EV_PRESENTATION_BLACK ||
5499              view->presentation_state == EV_PRESENTATION_WHITE)) {
5500                 ev_view_reset_presentation_state (view);
5501                 return FALSE;
5502         }
5503
5504         ev_view_reset_presentation_state (view);
5505
5506         page = ev_page_cache_get_current_page (view->page_cache);
5507
5508         if (view->dual_page && !view->presentation)
5509                 page = page - 2;
5510         else
5511                 page = page - 1;
5512
5513         if (page >= 0) {
5514                 ev_page_cache_set_current_page (view->page_cache, page);
5515                 return TRUE;
5516         } else if (ev_view_get_dual_page (view) && page == -1) {
5517                 ev_page_cache_set_current_page (view->page_cache, 0);
5518                 return TRUE;
5519         } else {
5520                 return FALSE;
5521         }
5522 }
5523
5524 /*** Enum description for usage in signal ***/
5525
5526 GType
5527 ev_sizing_mode_get_type (void)
5528 {
5529   static GType etype = 0;
5530   if (etype == 0) {
5531     static const GEnumValue values[] = {
5532       { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
5533       { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
5534       { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
5535       { 0, NULL, NULL }
5536     };
5537     etype = g_enum_register_static ("EvSizingMode", values);
5538   }
5539   return etype;
5540 }
5541
5542 GType
5543 ev_scroll_type_get_type (void)
5544 {
5545   static GType etype = 0;
5546   if (etype == 0) {
5547     static const GEnumValue values[] = {
5548       { EV_SCROLL_PAGE_FORWARD, "EV_SCROLL_PAGE_FORWARD", "scroll-page-forward" },
5549       { EV_SCROLL_PAGE_BACKWARD, "EV_SCROLL_PAGE_BACKWARD", "scroll-page-backward" },
5550       { EV_SCROLL_STEP_FORWARD, "EV_SCROLL_STEP_FORWARD", "scroll-step-forward" },
5551       { EV_SCROLL_STEP_FORWARD, "EV_SCROLL_STEP_FORWARD", "scroll-step-forward" },
5552       { EV_SCROLL_STEP_UP, "EV_SCROLL_STEP_UP", "scroll-step-up" },
5553       { EV_SCROLL_STEP_DOWN, "EV_SCROLL_STEP_DOWN", "scroll-step-down" },
5554       { 0, NULL, NULL }
5555     };
5556     etype = g_enum_register_static ("EvScrollType", values);
5557   }
5558   return etype;
5559 }