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