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 }
1521
1522 /*** Images ***/
1523 static EvImage *
1524 ev_view_get_image_at_location (EvView  *view,
1525                                gdouble  x,
1526                                gdouble  y)
1527 {
1528         gint page = -1;
1529         gint x_offset = 0, y_offset = 0;
1530         gint x_new = 0, y_new = 0;
1531         GList *image_mapping;
1532
1533         if (!EV_IS_DOCUMENT_IMAGES (view->document))
1534                 return NULL;
1535
1536         x += view->scroll_x;
1537         y += view->scroll_y;
1538
1539         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1540
1541         if (page == -1)
1542                 return NULL;
1543
1544         if (get_doc_point_from_offset (view, page, x_offset,
1545                                        y_offset, &x_new, &y_new) == FALSE)
1546                 return NULL;
1547
1548         image_mapping = ev_pixbuf_cache_get_image_mapping (view->pixbuf_cache, page);
1549
1550         if (image_mapping)
1551                 return ev_image_mapping_find (image_mapping, x_new, y_new);
1552         else
1553                 return NULL;
1554 }
1555
1556 /*** GtkWidget implementation ***/
1557
1558 static void
1559 ev_view_size_request_continuous_dual_page (EvView         *view,
1560                                            GtkRequisition *requisition)
1561 {
1562         int max_width;
1563         gint n_pages;
1564         GtkBorder border;
1565
1566         ev_page_cache_get_max_width (view->page_cache, view->rotation,
1567                                      view->scale, &max_width);
1568         compute_border (view, max_width, max_width, &border);
1569
1570         n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
1571
1572         requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
1573         get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1574
1575         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1576                 requisition->width = 1;
1577         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1578                 requisition->width = 1;
1579                 /* FIXME: This could actually be set on one page docs or docs
1580                  * with a strange aspect ratio. */
1581                 /* requisition->height = 1;*/
1582         }
1583 }
1584
1585 static void
1586 ev_view_size_request_continuous (EvView         *view,
1587                                  GtkRequisition *requisition)
1588 {
1589         int max_width;
1590         int n_pages;
1591         GtkBorder border;
1592
1593
1594         ev_page_cache_get_max_width (view->page_cache, view->rotation,
1595                                      view->scale, &max_width);
1596         n_pages = ev_page_cache_get_n_pages (view->page_cache);
1597         compute_border (view, max_width, max_width, &border);
1598
1599         requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
1600         get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1601
1602         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1603                 requisition->width = 1;
1604         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1605                 requisition->width = 1;
1606                 /* FIXME: This could actually be set on one page docs or docs
1607                  * with a strange aspect ratio. */
1608                 /* requisition->height = 1;*/
1609         }
1610 }
1611
1612 static void
1613 ev_view_size_request_dual_page (EvView         *view,
1614                                 GtkRequisition *requisition)
1615 {
1616         GtkBorder border;
1617         gint width, height;
1618
1619         /* Find the largest of the two. */
1620         ev_page_cache_get_size (view->page_cache,
1621                                 view->current_page,
1622                                 view->rotation,
1623                                 view->scale,
1624                                 &width, &height);
1625         if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1626                 gint width_2, height_2;
1627                 ev_page_cache_get_size (view->page_cache,
1628                                         view->current_page + 1,
1629                                         view->rotation,
1630                                         view->scale,
1631                                         &width_2, &height_2);
1632                 if (width_2 > width) {
1633                         width = width_2;
1634                         height = height_2;
1635                 }
1636         }
1637         compute_border (view, width, height, &border);
1638
1639         requisition->width = ((width + border.left + border.right) * 2) +
1640                 (view->spacing * 3);
1641         requisition->height = (height + border.top + border.bottom) +
1642                 (view->spacing * 2);
1643
1644         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1645                 requisition->width = 1;
1646         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1647                 requisition->width = 1;
1648                 requisition->height = 1;
1649         }
1650 }
1651
1652 static void
1653 ev_view_size_request_single_page (EvView         *view,
1654                                   GtkRequisition *requisition)
1655 {
1656         GtkBorder border;
1657         gint width, height;
1658
1659         ev_page_cache_get_size (view->page_cache,
1660                                 view->current_page,
1661                                 view->rotation,
1662                                 view->scale,
1663                                 &width, &height);
1664         compute_border (view, width, height, &border);
1665
1666         requisition->width = width + border.left + border.right + (2 * view->spacing);
1667         requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1668
1669         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1670                 requisition->width = 1;
1671                 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1672         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1673                 requisition->width = 1;
1674                 requisition->height = 1;
1675         }
1676 }
1677
1678 static void
1679 ev_view_size_request (GtkWidget      *widget,
1680                       GtkRequisition *requisition)
1681 {
1682         EvView *view = EV_VIEW (widget);
1683
1684         if (view->document == NULL) {
1685                 requisition->width = 1;
1686                 requisition->height = 1;
1687                 return;
1688         }
1689
1690         if (view->presentation) {
1691                 requisition->width = 1;
1692                 requisition->height = 1;
1693                 return;
1694         }
1695
1696         if (view->continuous && view->dual_page)
1697                 ev_view_size_request_continuous_dual_page (view, requisition);
1698         else if (view->continuous)
1699                 ev_view_size_request_continuous (view, requisition);
1700         else if (view->dual_page)
1701                 ev_view_size_request_dual_page (view, requisition);
1702         else
1703                 ev_view_size_request_single_page (view, requisition);
1704 }
1705
1706 static void
1707 ev_view_size_allocate (GtkWidget      *widget,
1708                        GtkAllocation  *allocation)
1709 {
1710         EvView *view = EV_VIEW (widget);
1711
1712         GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1713
1714         if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1715             view->sizing_mode == EV_SIZING_BEST_FIT) {
1716
1717                 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
1718
1719                 ev_view_size_request (widget, &widget->requisition);
1720         }
1721
1722         view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1723         view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1724
1725         if (view->document)
1726                 view_update_range_and_current_page (view);
1727
1728         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1729         view->pending_resize = FALSE;
1730 }
1731
1732 static void
1733 ev_view_realize (GtkWidget *widget)
1734 {
1735         EvView *view = EV_VIEW (widget);
1736         GdkWindowAttr attributes;
1737
1738         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1739
1740         attributes.window_type = GDK_WINDOW_CHILD;
1741         attributes.wclass = GDK_INPUT_OUTPUT;
1742         attributes.visual = gtk_widget_get_visual (widget);
1743         attributes.colormap = gtk_widget_get_colormap (widget);
1744
1745         attributes.x = widget->allocation.x;
1746         attributes.y = widget->allocation.y;
1747         attributes.width = widget->allocation.width;
1748         attributes.height = widget->allocation.height;
1749         attributes.event_mask = GDK_EXPOSURE_MASK |
1750                                 GDK_BUTTON_PRESS_MASK |
1751                                 GDK_BUTTON_RELEASE_MASK |
1752                                 GDK_SCROLL_MASK |
1753                                 GDK_KEY_PRESS_MASK |
1754                                 GDK_POINTER_MOTION_MASK |
1755                                 GDK_POINTER_MOTION_HINT_MASK |
1756                                 GDK_ENTER_NOTIFY_MASK |
1757                                 GDK_LEAVE_NOTIFY_MASK;
1758
1759         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1760                                          &attributes,
1761                                          GDK_WA_X | GDK_WA_Y |
1762                                          GDK_WA_COLORMAP |
1763                                          GDK_WA_VISUAL);
1764         gdk_window_set_user_data (widget->window, widget);
1765         widget->style = gtk_style_attach (widget->style, widget->window);
1766
1767         if (view->presentation)
1768                 gdk_window_set_background (widget->window, &widget->style->black);
1769         else
1770                 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1771 }
1772
1773 static gboolean
1774 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1775 {
1776         EvView *view = EV_VIEW (widget);
1777         guint state;
1778
1779         state = event->state & gtk_accelerator_get_default_mod_mask ();
1780
1781         if (state == GDK_CONTROL_MASK && view->presentation == FALSE) {
1782                 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1783
1784                 if (event->direction == GDK_SCROLL_UP ||
1785                     event->direction == GDK_SCROLL_LEFT) {
1786                         if (ev_view_can_zoom_in (view)) {
1787                                 ev_view_zoom_in (view);
1788                         }
1789                 } else {
1790                         if (ev_view_can_zoom_out (view)) {
1791                                 ev_view_zoom_out (view);
1792                         }
1793                 }
1794
1795                 return TRUE;
1796         }
1797
1798         view->jump_to_find_result = FALSE;
1799         /* Shift+Wheel scrolls the in the perpendicular direction */
1800         if (state & GDK_SHIFT_MASK) {
1801                 if (event->direction == GDK_SCROLL_UP)
1802                         event->direction = GDK_SCROLL_LEFT;
1803                 if (event->direction == GDK_SCROLL_LEFT)
1804                         event->direction = GDK_SCROLL_UP;
1805                 if (event->direction == GDK_SCROLL_DOWN)
1806                         event->direction = GDK_SCROLL_RIGHT;
1807                 if (event->direction == GDK_SCROLL_RIGHT)
1808                         event->direction = GDK_SCROLL_DOWN;
1809
1810                 event->state &= ~GDK_SHIFT_MASK;
1811                 state &= ~GDK_SHIFT_MASK;
1812         }
1813
1814         if (state == 0 && view->presentation) {
1815                 switch (event->direction) {
1816                         case GDK_SCROLL_DOWN:
1817                         case GDK_SCROLL_RIGHT:
1818                                 ev_view_next_page (view);
1819                                 break;
1820                         case GDK_SCROLL_UP:
1821                         case GDK_SCROLL_LEFT:
1822                                 ev_view_previous_page (view);
1823                                 break;
1824                 }
1825
1826                 return TRUE;
1827         }
1828
1829         return FALSE;
1830 }
1831
1832 static EvViewSelection *
1833 find_selection_for_page (EvView *view,
1834                          gint    page)
1835 {
1836         GList *list;
1837
1838         for (list = view->selection_info.selections; list != NULL; list = list->next) {
1839                 EvViewSelection *selection;
1840
1841                 selection = (EvViewSelection *) list->data;
1842
1843                 if (selection->page == page)
1844                         return selection;
1845         }
1846
1847         return NULL;
1848 }
1849
1850 static void
1851 draw_end_presentation_page (EvView       *view,
1852                             GdkRectangle *page_area)
1853 {
1854         PangoLayout *layout;
1855         PangoFontDescription *font_desc;
1856         gchar *markup;
1857         const gchar *text = _("End of presentation. Press Escape to exit.");
1858
1859         if (view->presentation_state != EV_PRESENTATION_END)
1860                 return;
1861
1862         layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), NULL);
1863         markup = g_strdup_printf ("<span foreground=\"white\">%s</span>", text);
1864         pango_layout_set_markup (layout, markup, -1);
1865         g_free (markup);
1866
1867         font_desc = pango_font_description_new ();
1868         pango_font_description_set_size (font_desc, 16 * PANGO_SCALE);
1869         pango_layout_set_font_description (layout, font_desc);
1870
1871         gtk_paint_layout (GTK_WIDGET (view)->style,
1872                           GTK_WIDGET (view)->window,
1873                           GTK_WIDGET_STATE (view),
1874                           FALSE,
1875                           page_area,
1876                           GTK_WIDGET (view),
1877                           NULL,
1878                           page_area->x + 15,
1879                           page_area->y + 15,
1880                           layout);
1881
1882         pango_font_description_free (font_desc);
1883         g_object_unref (layout);
1884 }
1885
1886 static gboolean
1887 ev_view_expose_event (GtkWidget      *widget,
1888                       GdkEventExpose *event)
1889 {
1890         EvView *view = EV_VIEW (widget);
1891         int i;
1892
1893         if (view->presentation) {
1894                 switch (view->presentation_state) {
1895                         case EV_PRESENTATION_END: {
1896                                 GdkRectangle area = {0};
1897
1898                                 area.width = widget->allocation.width;
1899                                 area.height = widget->allocation.height;
1900
1901                                 draw_end_presentation_page (view, &area);
1902                         }
1903                                 return FALSE;
1904                         case EV_PRESENTATION_BLACK:
1905                         case EV_PRESENTATION_WHITE:
1906                                 return FALSE;
1907                         case EV_PRESENTATION_NORMAL:
1908                         default:
1909                                 break;
1910                 }
1911         } else if (view->loading) {
1912                 GdkRectangle area = {0};
1913
1914                 area.width = widget->allocation.width;
1915                 area.height = widget->allocation.height;
1916
1917                 draw_loading_text (view,
1918                                    &area,
1919                                    &(event->area));
1920         }
1921
1922         if (view->document == NULL)
1923                 return FALSE;
1924
1925         for (i = view->start_page; i <= view->end_page; i++) {
1926                 GdkRectangle page_area;
1927                 GtkBorder border;
1928                 gboolean page_ready = TRUE;
1929
1930                 if (!get_page_extents (view, i, &page_area, &border))
1931                         continue;
1932
1933                 page_area.x -= view->scroll_x;
1934                 page_area.y -= view->scroll_y;
1935
1936                 draw_one_page (view, i, &page_area, &border, &(event->area), &page_ready);
1937
1938                 if (page_ready && EV_IS_DOCUMENT_FIND (view->document))
1939                         highlight_find_results (view, i);
1940         }
1941
1942         return FALSE;
1943 }
1944
1945 static gboolean
1946 ev_view_do_popup_menu (EvView *view,
1947                        gdouble x,
1948                        gdouble y)
1949 {
1950         EvLink  *link;
1951         EvImage *image;
1952
1953         image = ev_view_get_image_at_location (view, x, y);
1954         if (image) {
1955                 g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, image);
1956                 return TRUE;
1957         }
1958
1959         link = ev_view_get_link_at_location (view, x, y);
1960         if (link) {
1961                 g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link);
1962                 return TRUE;
1963         }
1964
1965         g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, NULL);
1966
1967         return TRUE;
1968 }
1969
1970 static gboolean
1971 ev_view_popup_menu (GtkWidget *widget)
1972 {
1973         gint x, y;
1974
1975         gtk_widget_get_pointer (widget, &x, &y);
1976         return ev_view_do_popup_menu (EV_VIEW (widget), x, y);
1977 }
1978
1979 static gboolean
1980 ev_view_button_press_event (GtkWidget      *widget,
1981                             GdkEventButton *event)
1982 {
1983         EvView *view = EV_VIEW (widget);
1984
1985         if (!view->document)
1986                 return FALSE;
1987
1988         if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1989                 gtk_widget_grab_focus (widget);
1990         }
1991
1992         view->pressed_button = event->button;
1993         view->selection_info.in_drag = FALSE;
1994
1995         switch (event->button) {
1996                 case 1: {
1997                         EvImage *image;
1998
1999                         if (view->selection_info.selections) {
2000                                 if (location_in_selected_text (view,
2001                                                                event->x + view->scroll_x,
2002                                                                event->y + view->scroll_y)) {
2003                                         view->selection_info.in_drag = TRUE;
2004                                 } else {
2005                                         clear_selection (view);
2006                                 }
2007
2008                                 gtk_widget_queue_draw (widget);
2009                         } else if (!location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y) &&
2010                                    (image = ev_view_get_image_at_location (view, event->x, event->y))) {
2011                                 if (view->image_dnd_info.image)
2012                                         g_object_unref (view->image_dnd_info.image);
2013                                 view->image_dnd_info.image = g_object_ref (image);
2014                                 view->image_dnd_info.in_drag = TRUE;
2015
2016                                 view->image_dnd_info.start.x = event->x + view->scroll_x;
2017                                 view->image_dnd_info.start.y = event->y + view->scroll_y;
2018                         }
2019
2020                         view->selection_info.start.x = event->x + view->scroll_x;
2021                         view->selection_info.start.y = event->y + view->scroll_y;
2022                 }
2023                         return TRUE;
2024                 case 2:
2025                         /* use root coordinates as reference point because
2026                          * scrolling changes window relative coordinates */
2027                         view->drag_info.start.x = event->x_root;
2028                         view->drag_info.start.y = event->y_root;
2029                         view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
2030                         view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
2031
2032                         ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
2033
2034                         return TRUE;
2035                 case 3:
2036                         return ev_view_do_popup_menu (view, event->x, event->y);
2037         }
2038
2039         return FALSE;
2040 }
2041
2042 /*** Drag and Drop ***/
2043 static void
2044 ev_view_drag_data_get (GtkWidget        *widget,
2045                        GdkDragContext   *context,
2046                        GtkSelectionData *selection_data,
2047                        guint             info,
2048                        guint             time)
2049 {
2050         EvView *view = EV_VIEW (widget);
2051
2052         switch (info) {
2053                 case TARGET_DND_TEXT:
2054                         if (view->selection_info.selections &&
2055                             ev_document_can_get_text (view->document)) {
2056                                 gchar *text;
2057
2058                                 text = get_selected_text (view);
2059
2060                                 gtk_selection_data_set_text (selection_data,
2061                                                              text,
2062                                                              strlen (text));
2063
2064                                 g_free (text);
2065                         }
2066                         break;
2067                 case TARGET_DND_IMAGE:
2068                         if (view->image_dnd_info.image) {
2069                                 GdkPixbuf *pixbuf;
2070
2071                                 pixbuf = ev_image_get_pixbuf (view->image_dnd_info.image);
2072                                 gtk_selection_data_set_pixbuf (selection_data, pixbuf);
2073                         }
2074                         break;
2075                 case TARGET_DND_URI:
2076                         if (view->image_dnd_info.image) {
2077                                 const gchar *tmp_uri;
2078                                 gchar      **uris;
2079
2080                                 tmp_uri = ev_image_save_tmp (view->image_dnd_info.image);
2081
2082                                 uris = g_new0 (gchar *, 2);
2083                                 uris[0] = (gchar *)tmp_uri;
2084
2085                                 gtk_selection_data_set_uris (selection_data, uris);
2086
2087                                 /* g_free instead of g_strfreev since tmp_uri is const */
2088                                 g_free (uris);
2089                         }
2090         }
2091 }
2092
2093 static gboolean
2094 ev_view_drag_motion (GtkWidget      *widget,
2095                      GdkDragContext *context,
2096                      gint            x,
2097                      gint            y,
2098                      guint           time)
2099 {
2100         if (gtk_drag_get_source_widget (context) == widget)
2101                 gdk_drag_status (context, 0, time);
2102         else
2103                 gdk_drag_status (context, context->suggested_action, time);
2104
2105         return TRUE;
2106 }
2107
2108 static void
2109 ev_view_drag_data_received (GtkWidget          *widget,
2110                             GdkDragContext     *context,
2111                             gint                x,
2112                             gint                y,
2113                             GtkSelectionData   *selection_data,
2114                             guint               info,
2115                             guint               time)
2116 {
2117         gchar  **uris;
2118         gint     i = 0;
2119         GSList  *uri_list = NULL;
2120
2121         uris = gtk_selection_data_get_uris (selection_data);
2122         if (!uris) {
2123                 gtk_drag_finish (context, FALSE, FALSE, time);
2124                 return;
2125         }
2126
2127         for (i = 0; uris[i]; i++) {
2128                 uri_list = g_slist_prepend (uri_list, (gpointer) uris[i]);
2129         }
2130
2131         ev_application_open_uri_list (EV_APP, uri_list,
2132                                       gtk_widget_get_screen (widget),
2133                                       0);
2134         gtk_drag_finish (context, TRUE, FALSE, time);
2135
2136         g_strfreev (uris);
2137         g_slist_free (uri_list);
2138 }
2139
2140
2141 static gboolean
2142 selection_update_idle_cb (EvView *view)
2143 {
2144         compute_selections (view, &view->selection_info.start, &view->motion);
2145         view->selection_update_id = 0;
2146         return FALSE;
2147 }
2148
2149 static gboolean
2150 selection_scroll_timeout_cb (EvView *view)
2151 {
2152         gint x, y, shift = 0;
2153         GtkWidget *widget = GTK_WIDGET (view);
2154
2155         gtk_widget_get_pointer (widget, &x, &y);
2156
2157         if (y > widget->allocation.height) {
2158                 shift = (y - widget->allocation.height) / 2;
2159         } else if (y < 0) {
2160                 shift = y / 2;
2161         }
2162
2163         if (shift)
2164                 gtk_adjustment_set_value (view->vadjustment,
2165                                           CLAMP (view->vadjustment->value + shift,
2166                                           view->vadjustment->lower,
2167                                           view->vadjustment->upper -
2168                                           view->vadjustment->page_size));
2169
2170         if (x > widget->allocation.width) {
2171                 shift = (x - widget->allocation.width) / 2;
2172         } else if (x < 0) {
2173                 shift = x / 2;
2174         }
2175
2176         if (shift)
2177                 gtk_adjustment_set_value (view->hadjustment,
2178                                           CLAMP (view->hadjustment->value + shift,
2179                                           view->hadjustment->lower,
2180                                           view->hadjustment->upper -
2181                                           view->hadjustment->page_size));
2182
2183         return TRUE;
2184 }
2185
2186 static gboolean
2187 ev_view_motion_notify_event (GtkWidget      *widget,
2188                              GdkEventMotion *event)
2189 {
2190         EvView *view = EV_VIEW (widget);
2191         gint x, y;
2192
2193         if (!view->document)
2194                 return FALSE;
2195
2196         if (event->is_hint || event->window != widget->window) {
2197             gtk_widget_get_pointer (widget, &x, &y);
2198         } else {
2199             x = event->x;
2200             y = event->y;
2201         }
2202
2203         if (view->selection_info.in_drag) {
2204                 if (gtk_drag_check_threshold (widget,
2205                                               view->selection_info.start.x,
2206                                               view->selection_info.start.y,
2207                                               x, y)) {
2208                         GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
2209
2210                         gtk_target_list_add_text_targets (target_list, TARGET_DND_TEXT);
2211
2212                         gtk_drag_begin (widget, target_list,
2213                                         GDK_ACTION_COPY,
2214                                         1, (GdkEvent *)event);
2215
2216                         view->selection_info.in_drag = FALSE;
2217
2218                         gtk_target_list_unref (target_list);
2219
2220                         return TRUE;
2221                 }
2222         } else if (view->image_dnd_info.in_drag) {
2223                 if (gtk_drag_check_threshold (widget,
2224                                               view->selection_info.start.x,
2225                                               view->selection_info.start.y,
2226                                               x, y)) {
2227                         GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
2228
2229                         gtk_target_list_add_uri_targets (target_list, TARGET_DND_URI);
2230                         gtk_target_list_add_image_targets (target_list, TARGET_DND_IMAGE, TRUE);
2231
2232                         gtk_drag_begin (widget, target_list,
2233                                         GDK_ACTION_COPY,
2234                                         1, (GdkEvent *)event);
2235
2236                         view->image_dnd_info.in_drag = FALSE;
2237
2238                         gtk_target_list_unref (target_list);
2239
2240                         return TRUE;
2241                 }
2242         }
2243
2244         /* For the Evince 0.4.x release, we limit selection to un-rotated
2245          * documents only.
2246          */
2247         if (view->pressed_button == 1 && view->rotation == 0) {
2248
2249                 /* Schedule timeout to scroll during selection and additionally
2250                  * scroll once to allow arbitrary speed. */
2251                 if (!view->selection_scroll_id)
2252                     view->selection_scroll_id = g_timeout_add (SCROLL_TIME, (GSourceFunc)selection_scroll_timeout_cb, view);
2253                 else
2254                     selection_scroll_timeout_cb (view);
2255
2256                 view->selection_info.in_selection = TRUE;
2257                 view->motion.x = x + view->scroll_x;
2258                 view->motion.y = y + view->scroll_y;
2259
2260                 /* Queue an idle to handle the motion.  We do this because
2261                  * handling any selection events in the motion could be slower
2262                  * than new motion events reach us.  We always put it in the
2263                  * idle to make sure we catch up and don't visibly lag the
2264                  * mouse. */
2265                 if (!view->selection_update_id)
2266                         view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
2267
2268                 return TRUE;
2269         } else if (view->pressed_button == 2) {
2270                 if (!view->drag_info.in_drag) {
2271                         gboolean start;
2272
2273                         start = gtk_drag_check_threshold (widget,
2274                                                           view->drag_info.start.x,
2275                                                           view->drag_info.start.y,
2276                                                           event->x_root,
2277                                                           event->y_root);
2278                         view->drag_info.in_drag = start;
2279                 }
2280
2281                 if (view->drag_info.in_drag) {
2282                         int dx, dy;
2283                         gdouble dhadj_value, dvadj_value;
2284
2285                         dx = event->x_root - view->drag_info.start.x;
2286                         dy = event->y_root - view->drag_info.start.y;
2287
2288                         dhadj_value = view->hadjustment->page_size *
2289                                       (gdouble)dx / widget->allocation.width;
2290                         dvadj_value = view->vadjustment->page_size *
2291                                       (gdouble)dy / widget->allocation.height;
2292
2293                         /* clamp scrolling to visible area */
2294                         gtk_adjustment_set_value (view->hadjustment,
2295                                                   MIN(view->drag_info.hadj - dhadj_value,
2296                                                       view->hadjustment->upper -
2297                                                       view->hadjustment->page_size));
2298                         gtk_adjustment_set_value (view->vadjustment,
2299                                                   MIN(view->drag_info.vadj - dvadj_value,
2300                                                       view->vadjustment->upper -
2301                                                       view->vadjustment->page_size));
2302
2303                         return TRUE;
2304                 }
2305         } else if (view->pressed_button <= 0) {
2306                 handle_link_over_xy (view, x, y);
2307                 return TRUE;
2308         }
2309
2310         return FALSE;
2311 }
2312
2313 static gboolean
2314 ev_view_button_release_event (GtkWidget      *widget,
2315                               GdkEventButton *event)
2316 {
2317         EvView *view = EV_VIEW (widget);
2318         EvLink *link;
2319
2320         if (view->pressed_button == 2) {
2321                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
2322         }
2323
2324         if (view->document && view->pressed_button != 3) {
2325                 link = ev_view_get_link_at_location (view, event->x, event->y);
2326         } else {
2327                 link = NULL;
2328         }
2329
2330         view->pressed_button = -1;
2331         view->drag_info.in_drag = FALSE;
2332         view->image_dnd_info.in_drag = FALSE;
2333
2334         if (view->selection_scroll_id) {
2335             g_source_remove (view->selection_scroll_id);
2336             view->selection_scroll_id = 0;
2337         }
2338         if (view->selection_update_id) {
2339             g_source_remove (view->selection_update_id);
2340             view->selection_update_id = 0;
2341         }
2342
2343         if (view->selection_info.selections) {
2344                 ev_view_update_primary_selection (view);
2345
2346                 if (view->selection_info.in_drag) {
2347                         clear_selection (view);
2348                         gtk_widget_queue_draw (widget);
2349                 }
2350
2351                 view->selection_info.in_drag = FALSE;
2352         } else if (link) {
2353                 if (event->button == 2) {
2354                         EvLinkAction    *action;
2355                         EvLinkActionType type;
2356
2357                         action = ev_link_get_action (link);
2358                         if (!action)
2359                                 return FALSE;
2360
2361                         type = ev_link_action_get_action_type (action);
2362                         if (type == EV_LINK_ACTION_TYPE_GOTO_DEST) {
2363                                 g_signal_emit (view,
2364                                                signals[SIGNAL_EXTERNAL_LINK],
2365                                                0, action);
2366                         }
2367                 } else {
2368                         ev_view_handle_link (view, link);
2369                 }
2370         } else if (view->presentation) {
2371                 switch (event->button) {
2372                         case 1:
2373                                 ev_view_next_page (view);
2374                                 return TRUE;
2375                         case 3:
2376                                 ev_view_previous_page (view);
2377                                 return TRUE;
2378                 }
2379         }
2380
2381         return FALSE;
2382 }
2383
2384 /* Goto Window */
2385 /* Cut and paste from gtkwindow.c */
2386 static void
2387 send_focus_change (GtkWidget *widget,
2388                    gboolean   in)
2389 {
2390         GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
2391
2392         g_object_ref (widget);
2393
2394         if (in)
2395                 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
2396         else
2397                 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
2398
2399         fevent->focus_change.type = GDK_FOCUS_CHANGE;
2400         fevent->focus_change.window = g_object_ref (widget->window);
2401         fevent->focus_change.in = in;
2402
2403         gtk_widget_event (widget, fevent);
2404
2405         g_object_notify (G_OBJECT (widget), "has-focus");
2406
2407         g_object_unref (widget);
2408         gdk_event_free (fevent);
2409 }
2410
2411 static void
2412 ev_view_goto_window_hide (EvView *view)
2413 {
2414         /* send focus-in event */
2415         send_focus_change (view->goto_entry, FALSE);
2416         gtk_widget_hide (view->goto_window);
2417         gtk_entry_set_text (GTK_ENTRY (view->goto_entry), "");
2418 }
2419
2420 static gboolean
2421 ev_view_goto_window_delete_event (GtkWidget   *widget,
2422                                   GdkEventAny *event,
2423                                   EvView      *view)
2424 {
2425         ev_view_goto_window_hide (view);
2426
2427         return TRUE;
2428 }
2429
2430 static gboolean
2431 key_is_numeric (guint keyval)
2432 {
2433         return ((keyval >= GDK_0 && keyval <= GDK_9) ||
2434                 (keyval >= GDK_KP_0 && keyval <= GDK_KP_9));
2435 }
2436
2437 static gboolean
2438 ev_view_goto_window_key_press_event (GtkWidget   *widget,
2439                                      GdkEventKey *event,
2440                                      EvView      *view)
2441 {
2442         switch (event->keyval) {
2443                 case GDK_Escape:
2444                 case GDK_Tab:
2445                 case GDK_KP_Tab:
2446                 case GDK_ISO_Left_Tab:
2447                         ev_view_goto_window_hide (view);
2448                         return TRUE;
2449                 case GDK_Return:
2450                 case GDK_KP_Enter:
2451                 case GDK_ISO_Enter:
2452                 case GDK_BackSpace:
2453                 case GDK_Delete:
2454                         return FALSE;
2455                 default:
2456                         if (!key_is_numeric (event->keyval))
2457                                 return TRUE;
2458         }
2459
2460         return FALSE;
2461 }
2462
2463 static gboolean
2464 ev_view_goto_window_button_press_event (GtkWidget      *widget,
2465                                         GdkEventButton *event,
2466                                         EvView         *view)
2467 {
2468         ev_view_goto_window_hide (view);
2469
2470         return TRUE;
2471 }
2472
2473 static void
2474 ev_view_goto_entry_activate (GtkEntry *entry,
2475                              EvView   *view)
2476 {
2477         const gchar *text;
2478         gint         page;
2479
2480         text = gtk_entry_get_text (entry);
2481         page = atoi (text) - 1;
2482
2483         ev_view_goto_window_hide (view);
2484
2485         if (page >= 0 &&
2486             page < ev_page_cache_get_n_pages (view->page_cache))
2487                 ev_page_cache_set_current_page (view->page_cache, page);
2488 }
2489
2490 static void
2491 ev_view_goto_window_create (EvView *view)
2492 {
2493         GtkWidget *frame, *hbox, *toplevel, *label;
2494
2495         toplevel = gtk_widget_get_toplevel (GTK_WIDGET (view));
2496
2497         if (view->goto_window) {
2498                 if (GTK_WINDOW (toplevel)->group)
2499                         gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
2500                                                      GTK_WINDOW (view->goto_window));
2501                 else if (GTK_WINDOW (view->goto_window)->group)
2502                         gtk_window_group_remove_window (GTK_WINDOW (view->goto_window)->group,
2503                                                         GTK_WINDOW (view->goto_window));
2504                 return;
2505         }
2506
2507         view->goto_window = gtk_window_new (GTK_WINDOW_POPUP);
2508
2509         if (GTK_WINDOW (toplevel)->group)
2510                 gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
2511                                              GTK_WINDOW (view->goto_window));
2512
2513         gtk_window_set_modal (GTK_WINDOW (view->goto_window), TRUE);
2514
2515         g_signal_connect (view->goto_window, "delete_event",
2516                           G_CALLBACK (ev_view_goto_window_delete_event),
2517                           view);
2518         g_signal_connect (view->goto_window, "key_press_event",
2519                           G_CALLBACK (ev_view_goto_window_key_press_event),
2520                           view);
2521         g_signal_connect (view->goto_window, "button_press_event",
2522                           G_CALLBACK (ev_view_goto_window_button_press_event),
2523                           view);
2524
2525         frame = gtk_frame_new (NULL);
2526         gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
2527         gtk_container_add (GTK_CONTAINER (view->goto_window), frame);
2528         gtk_widget_show (frame);
2529
2530         hbox = gtk_hbox_new (FALSE, 0);
2531         gtk_container_set_border_width (GTK_CONTAINER (hbox), 3);
2532         gtk_container_add (GTK_CONTAINER (frame), hbox);
2533         gtk_widget_show (hbox);
2534
2535         label = gtk_label_new(_("Jump to page:"));
2536         gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 3);
2537         gtk_widget_show (label);
2538         gtk_widget_realize (label);
2539
2540         view->goto_entry = gtk_entry_new ();
2541         g_signal_connect (view->goto_entry, "activate",
2542                           G_CALLBACK (ev_view_goto_entry_activate),
2543                           view);
2544         gtk_box_pack_start_defaults (GTK_BOX (hbox), view->goto_entry);
2545         gtk_widget_show (view->goto_entry);
2546         gtk_widget_realize (view->goto_entry);
2547 }
2548
2549 static void
2550 ev_view_goto_entry_grab_focus (EvView *view)
2551 {
2552         GtkWidgetClass *entry_parent_class;
2553
2554         entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (view->goto_entry));
2555         (entry_parent_class->grab_focus) (view->goto_entry);
2556
2557         send_focus_change (view->goto_entry, TRUE);
2558 }
2559
2560 static void
2561 ev_view_goto_window_send_key_event (EvView   *view,
2562                                     GdkEvent *event)
2563 {
2564         GdkEventKey *new_event;
2565         GdkScreen   *screen;
2566
2567         /* Move goto window off screen */
2568         screen = gtk_widget_get_screen (GTK_WIDGET (view));
2569         gtk_window_move (GTK_WINDOW (view->goto_window),
2570                          gdk_screen_get_width (screen) + 1,
2571                          gdk_screen_get_height (screen) + 1);
2572         gtk_widget_show (view->goto_window);
2573
2574         new_event = (GdkEventKey *) gdk_event_copy (event);
2575         g_object_unref (new_event->window);
2576         new_event->window = g_object_ref (view->goto_window->window);
2577         gtk_widget_realize (view->goto_window);
2578
2579         gtk_widget_event (view->goto_window, (GdkEvent *)new_event);
2580         gdk_event_free ((GdkEvent *)new_event);
2581         gtk_widget_hide (view->goto_window);
2582 }
2583
2584 static gboolean
2585 ev_view_key_press_event (GtkWidget   *widget,
2586                          GdkEventKey *event)
2587 {
2588         EvView *view = EV_VIEW (widget);
2589         EvPresentationState current;
2590
2591         if (!view->document)
2592                 return FALSE;
2593
2594         if (!view->presentation ||
2595             view->presentation_state == EV_PRESENTATION_END)
2596                 return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
2597
2598
2599         current = view->presentation_state;
2600
2601         switch (event->keyval) {
2602                 case GDK_b:
2603                 case GDK_B:
2604                         view->presentation_state =
2605                                 (view->presentation_state == EV_PRESENTATION_BLACK) ?
2606                                 EV_PRESENTATION_NORMAL : EV_PRESENTATION_BLACK;
2607                         break;
2608                 case GDK_w:
2609                 case GDK_W:
2610                         view->presentation_state =
2611                                 (view->presentation_state == EV_PRESENTATION_WHITE) ?
2612                                 EV_PRESENTATION_NORMAL : EV_PRESENTATION_WHITE;
2613                         break;
2614                 default:
2615                         if (view->presentation_state == EV_PRESENTATION_BLACK ||
2616                             view->presentation_state == EV_PRESENTATION_WHITE) {
2617                                 view->presentation_state = EV_PRESENTATION_NORMAL;
2618                         }
2619         }
2620
2621         if (current == view->presentation_state) {
2622                 if (ev_page_cache_get_n_pages (view->page_cache) > 1 &&
2623                     key_is_numeric (event->keyval)) {
2624                         gint x, y;
2625
2626                         ev_view_goto_window_create (view);
2627                         ev_view_goto_window_send_key_event (view, (GdkEvent *)event);
2628                         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
2629                         gtk_window_move (GTK_WINDOW (view->goto_window), x, y);
2630                         gtk_widget_show (view->goto_window);
2631                         ev_view_goto_entry_grab_focus (view);
2632
2633                         return TRUE;
2634                 }
2635
2636                 return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
2637         }
2638
2639         switch (view->presentation_state) {
2640                 case EV_PRESENTATION_NORMAL:
2641                 case EV_PRESENTATION_BLACK:
2642                         gdk_window_set_background (widget->window,
2643                                                    &widget->style->black);
2644                         break;
2645                 case EV_PRESENTATION_WHITE:
2646                         gdk_window_set_background (widget->window,
2647                                                    &widget->style->white);
2648                         break;
2649                 default:
2650                         return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
2651         }
2652
2653         gtk_widget_queue_draw (widget);
2654         return TRUE;
2655 }
2656
2657 static gint
2658 ev_view_focus_in (GtkWidget     *widget,
2659                   GdkEventFocus *event)
2660 {
2661         if (EV_VIEW (widget)->pixbuf_cache)
2662                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
2663         gtk_widget_queue_draw (widget);
2664
2665         return FALSE;
2666 }
2667
2668 static gint
2669 ev_view_focus_out (GtkWidget     *widget,
2670                      GdkEventFocus *event)
2671 {
2672         if (EV_VIEW (widget)->goto_window)
2673                 ev_view_goto_window_hide (EV_VIEW (widget));
2674
2675         if (EV_VIEW (widget)->pixbuf_cache)
2676                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
2677         gtk_widget_queue_draw (widget);
2678
2679         return FALSE;
2680 }
2681
2682 static gboolean
2683 ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing   *event)
2684 {
2685         EvView *view = EV_VIEW (widget);
2686
2687         ev_view_set_status (view, NULL);
2688
2689         if (view->cursor == EV_VIEW_CURSOR_LINK ||
2690             view->cursor == EV_VIEW_CURSOR_IBEAM)
2691                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
2692
2693         if (view->link_tooltip) {
2694                 view->hovered_link = NULL;
2695                 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
2696         }
2697
2698         return FALSE;
2699 }
2700
2701 static gboolean
2702 ev_view_enter_notify_event (GtkWidget *widget, GdkEventCrossing   *event)
2703 {
2704         EvView *view = EV_VIEW (widget);
2705
2706         handle_link_over_xy (view, event->x, event->y);
2707
2708         return FALSE;
2709 }
2710
2711 static void
2712 ev_view_style_set (GtkWidget *widget,
2713                    GtkStyle  *old_style)
2714 {
2715         if (EV_VIEW (widget)->pixbuf_cache)
2716                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
2717
2718         GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
2719 }
2720
2721 /*** Drawing ***/
2722
2723 static guint32
2724 ev_gdk_color_to_rgb (const GdkColor *color)
2725 {
2726   guint32 result;
2727   result = (0xff0000 | (color->red & 0xff00));
2728   result <<= 8;
2729   result |= ((color->green & 0xff00) | (color->blue >> 8));
2730   return result;
2731 }
2732
2733 static void
2734 draw_rubberband (GtkWidget *widget, GdkWindow *window,
2735                  const GdkRectangle *rect, guchar alpha)
2736 {
2737         GdkGC *gc;
2738         GdkPixbuf *pixbuf;
2739         GdkColor *fill_color_gdk;
2740         guint fill_color;
2741
2742         fill_color_gdk = gdk_color_copy (&GTK_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
2743         fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
2744
2745         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
2746                                  rect->width, rect->height);
2747         gdk_pixbuf_fill (pixbuf, fill_color);
2748
2749         gdk_draw_pixbuf (window, NULL, pixbuf,
2750                          0, 0,
2751                          rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
2752                          rect->width, rect->height,
2753                          GDK_RGB_DITHER_NONE,
2754                          0, 0);
2755
2756         g_object_unref (pixbuf);
2757
2758         gc = gdk_gc_new (window);
2759         gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
2760         gdk_draw_rectangle (window, gc, FALSE,
2761                             rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
2762                             rect->width - 1,
2763                             rect->height - 1);
2764         g_object_unref (gc);
2765
2766         gdk_color_free (fill_color_gdk);
2767 }
2768
2769
2770 static void
2771 highlight_find_results (EvView *view, int page)
2772 {
2773         EvDocumentFind *find;
2774         int i, results = 0;
2775
2776         g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
2777
2778         find = EV_DOCUMENT_FIND (view->document);
2779
2780         results = ev_document_find_get_n_results (find, page);
2781
2782         for (i = 0; i < results; i++) {
2783                 EvRectangle rectangle;
2784                 GdkRectangle view_rectangle;
2785                 guchar alpha;
2786
2787                 if (i == view->find_result && page == view->current_page) {
2788                         alpha = 0x90;
2789                 } else {
2790                         alpha = 0x20;
2791                 }
2792
2793                 ev_document_find_get_result (find, page, i, &rectangle);
2794                 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
2795                 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
2796                                  &view_rectangle, alpha);
2797         }
2798 }
2799
2800 static void
2801 draw_loading_text (EvView       *view,
2802                    GdkRectangle *page_area,
2803                    GdkRectangle *expose_area)
2804 {
2805         cairo_t *cr;
2806         gint     width, height;
2807
2808         /* Don't annoy users with loading messages during presentations.
2809          * FIXME: Temporary "workaround" for
2810          * http://bugzilla.gnome.org/show_bug.cgi?id=320352 */
2811         if (view->presentation)
2812                 return;
2813
2814         if (!view->loading_text) {
2815                 const gchar *loading_text;
2816                 PangoLayout *layout;
2817                 PangoFontDescription *font_desc;
2818                 PangoRectangle logical_rect;
2819                 gdouble real_scale;
2820                 gint target_width;
2821
2822                 loading_text = _("Loading...");
2823
2824                 ev_document_fc_mutex_lock ();
2825
2826                 layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), loading_text);
2827
2828                 font_desc = pango_font_description_new ();
2829
2830                 /* We set the font to be 10 points, get the size, and scale appropriately */
2831                 pango_font_description_set_size (font_desc, 10 * PANGO_SCALE);
2832                 pango_layout_set_font_description (layout, font_desc);
2833                 pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
2834
2835                 /* Make sure we fit the middle of the page */
2836                 target_width = MAX (page_area->width / 2, 1);
2837                 real_scale = ((double)target_width / (double) logical_rect.width) * (PANGO_SCALE * 10);
2838                 pango_font_description_set_size (font_desc, (int)real_scale);
2839                 pango_layout_set_font_description (layout, font_desc);
2840                 pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
2841
2842                 view->loading_text = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
2843                                                                  logical_rect.width,
2844                                                                  logical_rect.height);
2845                 cr = cairo_create (view->loading_text);
2846                 cairo_set_source_rgb (cr,
2847                                       155 / (double)255,
2848                                       155 / (double)255,
2849                                       155 / (double)255);
2850                 pango_cairo_show_layout (cr, layout);
2851                 cairo_destroy (cr);
2852
2853                 pango_font_description_free (font_desc);
2854                 g_object_unref (layout);
2855
2856                 ev_document_fc_mutex_unlock ();
2857         }
2858
2859         width = cairo_image_surface_get_width (view->loading_text) / 2;
2860         height = (page_area->height - cairo_image_surface_get_height (view->loading_text)) / 2;
2861
2862         cr = gdk_cairo_create (GTK_WIDGET (view)->window);
2863         cairo_set_source_surface (cr, view->loading_text,
2864                                   page_area->x + width,
2865                                   page_area->y + height);
2866         cairo_paint (cr);
2867         cairo_destroy (cr);
2868 }
2869
2870 static void
2871 draw_one_page (EvView          *view,
2872                gint             page,
2873                GdkRectangle    *page_area,
2874                GtkBorder       *border,
2875                GdkRectangle    *expose_area,
2876                gboolean        *page_ready)
2877 {
2878         gint width, height;
2879         GdkPixbuf *current_pixbuf;
2880         GdkRectangle overlap;
2881         GdkRectangle real_page_area;
2882         EvViewSelection *selection;
2883         gint current_page;
2884
2885         g_assert (view->document);
2886
2887         if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
2888                 return;
2889
2890         current_page = ev_page_cache_get_current_page (view->page_cache);
2891         selection = find_selection_for_page (view, page);
2892         ev_page_cache_get_size (view->page_cache,
2893                                 page, view->rotation,
2894                                 view->scale,
2895                                 &width, &height);
2896         /* Render the document itself */
2897         real_page_area = *page_area;
2898
2899         real_page_area.x += border->left;
2900         real_page_area.y += border->top;
2901         real_page_area.width -= (border->left + border->right);
2902         real_page_area.height -= (border->top + border->bottom);
2903         *page_ready = TRUE;
2904
2905         if (!view->presentation) {
2906                 ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
2907                                                  GTK_WIDGET (view),
2908                                                  page_area, border,
2909                                                  page == current_page);
2910         }
2911
2912         if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
2913                 GdkPixbuf *selection_pixbuf = NULL;
2914                 GdkPixbuf *scaled_image;
2915                 GdkPixbuf *scaled_selection;
2916
2917                 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
2918
2919                 /* Get the selection pixbuf iff we have something to draw */
2920                 if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
2921                         selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
2922                                                                                  page,
2923                                                                                  view->scale,
2924                                                                                  NULL);
2925
2926                 if (current_pixbuf == NULL)
2927                         scaled_image = NULL;
2928                 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
2929                          height == gdk_pixbuf_get_height (current_pixbuf))
2930                         scaled_image = g_object_ref (current_pixbuf);
2931                 else
2932                         /* FIXME: We don't want to scale the whole area, just the right
2933                          * area of it */
2934                         scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
2935                                                                 width, height,
2936                                                                 GDK_INTERP_NEAREST);
2937
2938                 if (selection_pixbuf == NULL)
2939                         scaled_selection = NULL;
2940                 else if (width == gdk_pixbuf_get_width (selection_pixbuf) &&
2941                          height == gdk_pixbuf_get_height (selection_pixbuf))
2942                         scaled_selection = g_object_ref (selection_pixbuf);
2943                 else
2944                         /* FIXME: We don't want to scale the whole area, just the right
2945                          * area of it */
2946                         scaled_selection = gdk_pixbuf_scale_simple (selection_pixbuf,
2947                                                                     width, height,
2948                                                                     GDK_INTERP_NEAREST);
2949
2950                 if (scaled_image) {
2951                         gdk_draw_pixbuf (GTK_WIDGET(view)->window,
2952                                          GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
2953                                          scaled_image,
2954                                          overlap.x - real_page_area.x,
2955                                          overlap.y - real_page_area.y,
2956                                          overlap.x, overlap.y,
2957                                          overlap.width, overlap.height,
2958                                          GDK_RGB_DITHER_NORMAL,
2959                                          0, 0);
2960                         g_object_unref (scaled_image);
2961                 } else {
2962                         draw_loading_text (view,
2963                                            &real_page_area,
2964                                            expose_area);
2965                         *page_ready = FALSE;
2966                 }
2967
2968                 if (scaled_selection) {
2969                         gdk_draw_pixbuf (GTK_WIDGET(view)->window,
2970                                          GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
2971                                          scaled_selection,
2972                                          overlap.x - real_page_area.x,
2973                                          overlap.y - real_page_area.y,
2974                                          overlap.x, overlap.y,
2975                                          overlap.width, overlap.height,
2976                                          GDK_RGB_DITHER_NORMAL,
2977                                          0, 0);
2978                         g_object_unref (scaled_selection);
2979                 }
2980         }
2981 }
2982
2983 /*** GObject functions ***/
2984
2985 static void
2986 ev_view_finalize (GObject *object)
2987 {
2988         EvView *view = EV_VIEW (object);
2989
2990         g_free (view->status);
2991         g_free (view->find_status);
2992
2993         clear_selection (view);
2994
2995         if (view->image_dnd_info.image)
2996                 g_object_unref (view->image_dnd_info.image);
2997         view->image_dnd_info.image = NULL;
2998
2999         G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
3000 }
3001
3002 static void
3003 ev_view_destroy (GtkObject *object)
3004 {
3005         EvView *view = EV_VIEW (object);
3006
3007         if (view->document) {
3008                 g_object_unref (view->document);
3009                 view->document = NULL;
3010         }
3011
3012         if (view->pixbuf_cache) {
3013                 g_object_unref (view->pixbuf_cache);
3014                 view->pixbuf_cache = NULL;
3015         }
3016
3017         if (view->link_tooltip) {
3018                 gtk_widget_destroy (view->link_tooltip);
3019                 view->link_tooltip = NULL;
3020         }
3021
3022         if (view->goto_window) {
3023                 gtk_widget_destroy (view->goto_window);
3024                 view->goto_window = NULL;
3025                 view->goto_entry = NULL;
3026         }
3027
3028         if (view->selection_scroll_id) {
3029             g_source_remove (view->selection_scroll_id);
3030             view->selection_scroll_id = 0;
3031         }
3032
3033         if (view->selection_update_id) {
3034             g_source_remove (view->selection_update_id);
3035             view->selection_update_id = 0;
3036         }
3037
3038         if (view->loading_text) {
3039                 cairo_surface_destroy (view->loading_text);
3040                 view->loading_text = NULL;
3041         }
3042
3043         ev_view_presentation_transition_stop (view);
3044
3045         ev_view_set_scroll_adjustments (view, NULL, NULL);
3046
3047         GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
3048 }
3049
3050 static void
3051 ev_view_set_property (GObject      *object,
3052                       guint         prop_id,
3053                       const GValue *value,
3054                       GParamSpec   *pspec)
3055 {
3056         EvView *view = EV_VIEW (object);
3057
3058         switch (prop_id) {
3059                 case PROP_CONTINUOUS:
3060                         ev_view_set_continuous (view, g_value_get_boolean (value));
3061                         break;
3062                 case PROP_DUAL_PAGE:
3063                         ev_view_set_dual_page (view, g_value_get_boolean (value));
3064                         break;
3065                 case PROP_FULLSCREEN:
3066                         ev_view_set_fullscreen (view, g_value_get_boolean (value));
3067                         break;
3068                 case PROP_PRESENTATION:
3069                         ev_view_set_presentation (view, g_value_get_boolean (value));
3070                         break;
3071                 case PROP_SIZING_MODE:
3072                         ev_view_set_sizing_mode (view, g_value_get_enum (value));
3073                         break;
3074                 case PROP_ZOOM:
3075                         ev_view_set_zoom (view, g_value_get_double (value), FALSE);
3076                         break;
3077                 case PROP_ROTATION:
3078                         ev_view_set_rotation (view, g_value_get_int (value));
3079                         break;
3080                 default:
3081                         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3082         }
3083 }
3084
3085 static AtkObject *
3086 ev_view_get_accessible (GtkWidget *widget)
3087 {
3088         static gboolean first_time = TRUE;
3089
3090         if (first_time) {
3091                 AtkObjectFactory *factory;
3092                 AtkRegistry *registry;
3093                 GType derived_type;
3094                 GType derived_atk_type;
3095
3096                 /*
3097                  * Figure out whether accessibility is enabled by looking at the
3098                  * type of the accessible object which would be created for
3099                  * the parent type of EvView.
3100                  */
3101                 derived_type = g_type_parent (EV_TYPE_VIEW);
3102
3103                 registry = atk_get_default_registry ();
3104                 factory = atk_registry_get_factory (registry,
3105                                                     derived_type);
3106                 derived_atk_type = atk_object_factory_get_accessible_type (factory);
3107                 if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
3108                         atk_registry_set_factory_type (registry,
3109                                                        EV_TYPE_VIEW,
3110                                                        ev_view_accessible_factory_get_type ());
3111                 first_time = FALSE;
3112         }
3113         return GTK_WIDGET_CLASS (ev_view_parent_class)->get_accessible (widget);
3114 }
3115
3116 static void
3117 ev_view_get_property (GObject *object,
3118                       guint prop_id,
3119                       GValue *value,
3120                       GParamSpec *pspec)
3121 {
3122         EvView *view = EV_VIEW (object);
3123
3124         switch (prop_id) {
3125                 case PROP_STATUS:
3126                         g_value_set_string (value, view->status);
3127                         break;
3128                 case PROP_FIND_STATUS:
3129                         g_value_set_string (value, view->status);
3130                         break;
3131                 case PROP_CONTINUOUS:
3132                         g_value_set_boolean (value, view->continuous);
3133                         break;
3134                 case PROP_DUAL_PAGE:
3135                         g_value_set_boolean (value, view->dual_page);
3136                         break;
3137                 case PROP_FULLSCREEN:
3138                         g_value_set_boolean (value, view->fullscreen);
3139                         break;
3140                 case PROP_PRESENTATION:
3141                         g_value_set_boolean (value, view->presentation);
3142                         break;
3143                 case PROP_SIZING_MODE:
3144                         g_value_set_enum (value, view->sizing_mode);
3145                         break;
3146                 case PROP_ZOOM:
3147                         g_value_set_double (value, view->scale);
3148                         break;
3149                 case PROP_ROTATION:
3150                         g_value_set_int (value, view->rotation);
3151                         break;
3152                 case PROP_HAS_SELECTION:
3153                         g_value_set_boolean (value,
3154                                              view->selection_info.selections != NULL);
3155                         break;
3156                 default:
3157                         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3158         }
3159 }
3160
3161 static void
3162 ev_view_class_init (EvViewClass *class)
3163 {
3164         GObjectClass *object_class = G_OBJECT_CLASS (class);
3165         GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
3166         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
3167         GtkBindingSet *binding_set;
3168
3169         object_class->finalize = ev_view_finalize;
3170         object_class->set_property = ev_view_set_property;
3171         object_class->get_property = ev_view_get_property;
3172
3173         widget_class->expose_event = ev_view_expose_event;
3174         widget_class->button_press_event = ev_view_button_press_event;
3175         widget_class->motion_notify_event = ev_view_motion_notify_event;
3176         widget_class->button_release_event = ev_view_button_release_event;
3177         widget_class->key_press_event = ev_view_key_press_event;
3178         widget_class->focus_in_event = ev_view_focus_in;
3179         widget_class->focus_out_event = ev_view_focus_out;
3180         widget_class->get_accessible = ev_view_get_accessible;
3181         widget_class->size_request = ev_view_size_request;
3182         widget_class->size_allocate = ev_view_size_allocate;
3183         widget_class->realize = ev_view_realize;
3184         widget_class->scroll_event = ev_view_scroll_event;
3185         widget_class->enter_notify_event = ev_view_enter_notify_event;
3186         widget_class->leave_notify_event = ev_view_leave_notify_event;
3187         widget_class->style_set = ev_view_style_set;
3188         widget_class->drag_data_get = ev_view_drag_data_get;
3189         widget_class->drag_motion = ev_view_drag_motion;
3190         widget_class->drag_data_received = ev_view_drag_data_received;
3191         widget_class->popup_menu = ev_view_popup_menu;
3192         gtk_object_class->destroy = ev_view_destroy;
3193
3194         class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
3195         class->binding_activated = ev_view_scroll;
3196
3197         widget_class->set_scroll_adjustments_signal =
3198             g_signal_new ("set-scroll-adjustments",
3199                           G_OBJECT_CLASS_TYPE (object_class),
3200                           G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3201                           G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
3202                           NULL, NULL,
3203                           ev_marshal_VOID__OBJECT_OBJECT,
3204                           G_TYPE_NONE, 2,
3205                           GTK_TYPE_ADJUSTMENT,
3206                           GTK_TYPE_ADJUSTMENT);
3207
3208         signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
3209                          G_TYPE_FROM_CLASS (object_class),
3210                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3211                          G_STRUCT_OFFSET (EvViewClass, binding_activated),
3212                          NULL, NULL,
3213                          ev_marshal_VOID__ENUM_BOOLEAN,
3214                          G_TYPE_NONE, 2,
3215                          GTK_TYPE_SCROLL_TYPE,
3216                          G_TYPE_BOOLEAN);
3217
3218         signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
3219                          G_TYPE_FROM_CLASS (object_class),
3220                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3221                          G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
3222                          NULL, NULL,
3223                          ev_marshal_VOID__VOID,
3224                          G_TYPE_NONE, 0, G_TYPE_NONE);
3225         signals[SIGNAL_HANDLE_LINK] = g_signal_new ("handle-link",
3226                          G_TYPE_FROM_CLASS (object_class),
3227                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3228                          G_STRUCT_OFFSET (EvViewClass, handle_link),
3229                          NULL, NULL,
3230                          g_cclosure_marshal_VOID__OBJECT,
3231                          G_TYPE_NONE, 1,
3232                          G_TYPE_OBJECT);
3233         signals[SIGNAL_EXTERNAL_LINK] = g_signal_new ("external-link",
3234                          G_TYPE_FROM_CLASS (object_class),
3235                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3236                          G_STRUCT_OFFSET (EvViewClass, external_link),
3237                          NULL, NULL,
3238                          g_cclosure_marshal_VOID__OBJECT,
3239                          G_TYPE_NONE, 1,
3240                          G_TYPE_OBJECT);
3241         signals[SIGNAL_POPUP_MENU] = g_signal_new ("popup",
3242                          G_TYPE_FROM_CLASS (object_class),
3243                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
3244                          G_STRUCT_OFFSET (EvViewClass, popup_menu),
3245                          NULL, NULL,
3246                          g_cclosure_marshal_VOID__OBJECT,
3247                          G_TYPE_NONE, 1,
3248                          G_TYPE_OBJECT);
3249
3250         g_object_class_install_property (object_class,
3251                                          PROP_STATUS,
3252                                          g_param_spec_string ("status",
3253                                                               "Status Message",
3254                                                               "The status message",
3255                                                               NULL,
3256                                                               G_PARAM_READABLE));
3257
3258         g_object_class_install_property (object_class,
3259                                          PROP_FIND_STATUS,
3260                                          g_param_spec_string ("find-status",
3261                                                               "Find Status Message",
3262                                                               "The find status message",
3263                                                               NULL,
3264                                                               G_PARAM_READABLE));
3265
3266         g_object_class_install_property (object_class,
3267                                          PROP_CONTINUOUS,
3268                                          g_param_spec_boolean ("continuous",
3269                                                                "Continuous",
3270                                                                "Continuous scrolling mode",
3271                                                                TRUE,
3272                                                                G_PARAM_READWRITE));
3273
3274         g_object_class_install_property (object_class,
3275                                          PROP_DUAL_PAGE,
3276                                          g_param_spec_boolean ("dual-page",
3277                                                                "Dual Page",
3278                                                                "Two pages visible at once",
3279                                                                FALSE,
3280                                                                G_PARAM_READWRITE));
3281         g_object_class_install_property (object_class,
3282                                          PROP_FULLSCREEN,
3283                                          g_param_spec_boolean ("fullscreen",
3284                                                                "Full Screen",
3285                                                                "Draw page in a fullscreen fashion",
3286                                                                FALSE,
3287                                                                G_PARAM_READWRITE));
3288         g_object_class_install_property (object_class,
3289                                          PROP_PRESENTATION,
3290                                          g_param_spec_boolean ("presentation",
3291                                                                "Presentation",
3292                                                                "Draw page in presentation mode",
3293                                                                TRUE,
3294                                                                G_PARAM_READWRITE));
3295
3296         g_object_class_install_property (object_class,
3297                                          PROP_SIZING_MODE,
3298                                          g_param_spec_enum ("sizing-mode",
3299                                                             "Sizing Mode",
3300                                                             "Sizing Mode",
3301                                                             EV_TYPE_SIZING_MODE,
3302                                                             EV_SIZING_FIT_WIDTH,
3303                                                             G_PARAM_READWRITE));
3304
3305         g_object_class_install_property (object_class,
3306                                          PROP_ZOOM,
3307                                          g_param_spec_double ("zoom",
3308                                                               "Zoom factor",
3309                                                               "Zoom factor",
3310                                                               0,
3311                                                               G_MAXDOUBLE,
3312                                                               1.0,
3313                                                               G_PARAM_READWRITE));
3314         g_object_class_install_property (object_class,
3315                                          PROP_ROTATION,
3316                                          g_param_spec_double ("rotation",
3317                                                               "Rotation",
3318                                                               "Rotation",
3319                                                               0,
3320                                                               360,
3321                                                               0,
3322                                                               G_PARAM_READWRITE));
3323         g_object_class_install_property (object_class,
3324                                          PROP_HAS_SELECTION,
3325                                          g_param_spec_boolean ("has-selection",
3326                                                                "Has selection",
3327                                                                "The view has selections",
3328                                                                FALSE,
3329                                                                G_PARAM_READABLE));
3330
3331         binding_set = gtk_binding_set_by_class (class);
3332
3333         add_scroll_binding_keypad (binding_set, GDK_Left,  0, EV_SCROLL_STEP_BACKWARD, TRUE);
3334         add_scroll_binding_keypad (binding_set, GDK_Right, 0, EV_SCROLL_STEP_FORWARD,  TRUE);
3335         add_scroll_binding_keypad (binding_set, GDK_Left,  GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, TRUE);
3336         add_scroll_binding_keypad (binding_set, GDK_Right, GDK_MOD1_MASK, EV_SCROLL_STEP_UP,  TRUE);
3337         add_scroll_binding_keypad (binding_set, GDK_Up,    0, EV_SCROLL_STEP_BACKWARD, FALSE);
3338         add_scroll_binding_keypad (binding_set, GDK_Down,  0, EV_SCROLL_STEP_FORWARD,  FALSE);
3339         add_scroll_binding_keypad (binding_set, GDK_Up,    GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, FALSE);
3340         add_scroll_binding_keypad (binding_set, GDK_Down,  GDK_MOD1_MASK, EV_SCROLL_STEP_UP,  FALSE);
3341 }
3342
3343 static void
3344 ev_view_init (EvView *view)
3345 {
3346         GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
3347
3348         view->spacing = 5;
3349         view->scale = 1.0;
3350         view->current_page = 0;
3351         view->pressed_button = -1;
3352         view->cursor = EV_VIEW_CURSOR_NORMAL;
3353         view->drag_info.in_drag = FALSE;
3354         view->selection_info.selections = NULL;
3355         view->selection_info.in_selection = FALSE;
3356         view->selection_info.in_drag = FALSE;
3357         view->selection_mode = EV_VIEW_SELECTION_TEXT;
3358         view->continuous = TRUE;
3359         view->dual_page = FALSE;
3360         view->presentation = FALSE;
3361         view->presentation_state = EV_PRESENTATION_NORMAL;
3362         view->fullscreen = FALSE;
3363         view->sizing_mode = EV_SIZING_FIT_WIDTH;
3364         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
3365         view->jump_to_find_result = TRUE;
3366
3367         gtk_drag_dest_set (GTK_WIDGET (view),
3368                            GTK_DEST_DEFAULT_ALL,
3369                            view_drop_targets,
3370                            G_N_ELEMENTS (view_drop_targets),
3371                            GDK_ACTION_COPY);
3372 }
3373
3374 /*** Callbacks ***/
3375
3376 static void
3377 find_changed_cb (EvDocument *document, int page, EvView *view)
3378 {
3379         double percent;
3380         int n_pages;
3381
3382         percent = ev_document_find_get_progress
3383                         (EV_DOCUMENT_FIND (view->document));
3384         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3385
3386         if (view->jump_to_find_result == TRUE) {
3387                 jump_to_find_page (view, EV_VIEW_FIND_NEXT, 0);
3388                 jump_to_find_result (view);
3389         }
3390         update_find_status_message (view, percent * n_pages >= n_pages - 1 );
3391         if (view->current_page == page)
3392                 gtk_widget_queue_draw (GTK_WIDGET (view));
3393 }
3394
3395 static void
3396 job_finished_cb (EvPixbufCache *pixbuf_cache,
3397                  EvView        *view)
3398 {
3399         gtk_widget_queue_draw (GTK_WIDGET (view));
3400 }
3401
3402 static void
3403 page_changed_cb (EvPageCache *page_cache,
3404                  int          new_page,
3405                  EvView      *view)
3406 {
3407         if (view->current_page != new_page) {
3408                 gint x, y;
3409
3410                 view->current_page = new_page;
3411                 view->pending_scroll = SCROLL_TO_PAGE_POSITION;
3412
3413                 if (view->presentation)
3414                         ev_view_presentation_transition_start (view);
3415
3416                 gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
3417                 handle_link_over_xy (view, x, y);
3418
3419                 gtk_widget_queue_resize (GTK_WIDGET (view));
3420         } else {
3421                 gtk_widget_queue_draw (GTK_WIDGET (view));
3422         }
3423
3424         if (EV_IS_DOCUMENT_FIND (view->document)) {
3425                 view->find_result = 0;
3426                 update_find_status_message (view, TRUE);
3427         }
3428 }
3429
3430 static void
3431 on_adjustment_value_changed (GtkAdjustment *adjustment,
3432                              EvView        *view)
3433 {
3434         int dx = 0, dy = 0;
3435         gint x, y;
3436
3437         if (! GTK_WIDGET_REALIZED (view))
3438                 return;
3439
3440         if (view->hadjustment) {
3441                 dx = view->scroll_x - (int) view->hadjustment->value;
3442                 view->scroll_x = (int) view->hadjustment->value;
3443         } else {
3444                 view->scroll_x = 0;
3445         }
3446
3447         if (view->vadjustment) {
3448                 dy = view->scroll_y - (int) view->vadjustment->value;
3449                 view->scroll_y = (int) view->vadjustment->value;
3450         } else {
3451                 view->scroll_y = 0;
3452         }
3453
3454         if (view->pending_resize)
3455                 gtk_widget_queue_draw (GTK_WIDGET (view));
3456         else
3457                 gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
3458
3459         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
3460         handle_link_over_xy (view, x, y);
3461
3462         if (view->document)
3463                 view_update_range_and_current_page (view);
3464 }
3465
3466 GtkWidget*
3467 ev_view_new (void)
3468 {
3469         GtkWidget *view;
3470
3471         view = g_object_new (EV_TYPE_VIEW, NULL);
3472
3473         return view;
3474 }
3475
3476 static void
3477 setup_caches (EvView *view)
3478 {
3479         view->page_cache = ev_page_cache_get (view->document);
3480         g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
3481         view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
3482         g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
3483         page_changed_cb (view->page_cache,
3484                          ev_page_cache_get_current_page (view->page_cache),
3485                          view);
3486 }
3487
3488 static void
3489 clear_caches (EvView *view)
3490 {
3491         if (view->pixbuf_cache) {
3492                 g_object_unref (view->pixbuf_cache);
3493                 view->pixbuf_cache = NULL;
3494         }
3495
3496         if (view->page_cache) {
3497                 view->page_cache = NULL;
3498         }
3499 }
3500
3501 void
3502 ev_view_set_loading (EvView       *view,
3503                      gboolean      loading)
3504 {
3505         view->loading = loading;
3506         gtk_widget_queue_draw (GTK_WIDGET (view));
3507 }
3508
3509 void
3510 ev_view_set_document (EvView     *view,
3511                       EvDocument *document)
3512 {
3513         g_return_if_fail (EV_IS_VIEW (view));
3514
3515         view->loading = FALSE;
3516
3517         if (document != view->document) {
3518                 clear_caches (view);
3519
3520                 if (view->document) {
3521                         g_signal_handlers_disconnect_by_func (view->document,
3522                                                               find_changed_cb,
3523                                                               view);
3524                         g_object_unref (view->document);
3525                         view->page_cache = NULL;
3526
3527                 }
3528
3529                 view->document = document;
3530                 view->find_result = 0;
3531
3532                 if (view->document) {
3533                         g_object_ref (view->document);
3534                         if (EV_IS_DOCUMENT_FIND (view->document)) {
3535                                 g_signal_connect (view->document,
3536                                                   "find_changed",
3537                                                   G_CALLBACK (find_changed_cb),
3538                                                   view);
3539                         }
3540
3541                         setup_caches (view);
3542                 }
3543
3544                 gtk_widget_queue_resize (GTK_WIDGET (view));
3545         }
3546 }
3547
3548 /*** Zoom and sizing mode ***/
3549
3550 #define EPSILON 0.0000001
3551 void
3552 ev_view_set_zoom (EvView   *view,
3553                   double    factor,
3554                   gboolean  relative)
3555 {
3556         double scale;
3557
3558         if (relative)
3559                 scale = view->scale * factor;
3560         else
3561                 scale = factor;
3562
3563         scale = CLAMP (scale, view->min_scale, view->max_scale);
3564
3565         if (ABS (view->scale - scale) < EPSILON)
3566                 return;
3567
3568         if (view->loading_text) {
3569                 cairo_surface_destroy (view->loading_text);
3570                 view->loading_text = NULL;
3571         }
3572
3573         view->scale = scale;
3574         view->pending_resize = TRUE;
3575
3576         gtk_widget_queue_resize (GTK_WIDGET (view));
3577
3578         g_object_notify (G_OBJECT (view), "zoom");
3579 }
3580
3581 double
3582 ev_view_get_zoom (EvView *view)
3583 {
3584         return view->scale;
3585 }
3586
3587 void
3588 ev_view_set_screen_dpi (EvView  *view,
3589                         gdouble  dpi)
3590 {
3591         g_return_if_fail (EV_IS_VIEW (view));
3592         g_return_if_fail (dpi > 0);
3593
3594         view->dpi = dpi;
3595         view->min_scale = MIN_SCALE * dpi / 72.0;
3596         view->max_scale = MAX_SCALE * dpi / 72.0;
3597 }
3598
3599 gboolean
3600 ev_view_get_continuous (EvView *view)
3601 {
3602         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
3603
3604         return view->continuous;
3605 }
3606
3607 void
3608 ev_view_set_continuous (EvView   *view,
3609                         gboolean  continuous)
3610 {
3611         g_return_if_fail (EV_IS_VIEW (view));
3612
3613         continuous = continuous != FALSE;
3614
3615         if (view->continuous != continuous) {
3616                 view->continuous = continuous;
3617                 view->pending_scroll = SCROLL_TO_PAGE_POSITION;
3618                 gtk_widget_queue_resize (GTK_WIDGET (view));
3619         }
3620
3621         g_object_notify (G_OBJECT (view), "continuous");
3622 }
3623
3624 gboolean
3625 ev_view_get_dual_page (EvView *view)
3626 {
3627         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
3628
3629         return view->dual_page;
3630 }
3631
3632 void
3633 ev_view_set_dual_page (EvView   *view,
3634                        gboolean  dual_page)
3635 {
3636         g_return_if_fail (EV_IS_VIEW (view));
3637
3638         dual_page = dual_page != FALSE;
3639
3640         if (view->dual_page == dual_page)
3641                 return;
3642
3643         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
3644         view->dual_page = dual_page;
3645         /* FIXME: if we're keeping the pixbuf cache around, we should extend the
3646          * preload_cache_size to be 2 if dual_page is set.
3647          */
3648         gtk_widget_queue_resize (GTK_WIDGET (view));
3649
3650         g_object_notify (G_OBJECT (view), "dual-page");
3651 }
3652
3653 void
3654 ev_view_set_fullscreen (EvView   *view,
3655                          gboolean  fullscreen)
3656 {
3657         g_return_if_fail (EV_IS_VIEW (view));
3658
3659         fullscreen = fullscreen != FALSE;
3660
3661         if (view->fullscreen == fullscreen)
3662                 return;
3663
3664         view->fullscreen = fullscreen;
3665         gtk_widget_queue_resize (GTK_WIDGET (view));
3666
3667         g_object_notify (G_OBJECT (view), "fullscreen");
3668 }
3669
3670 gboolean
3671 ev_view_get_fullscreen (EvView *view)
3672 {
3673         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
3674
3675         return view->fullscreen;
3676 }
3677
3678 void
3679 ev_view_set_presentation (EvView   *view,
3680                           gboolean  presentation)
3681 {
3682         g_return_if_fail (EV_IS_VIEW (view));
3683
3684         presentation = presentation != FALSE;
3685
3686         if (view->presentation == presentation)
3687                 return;
3688
3689         if (!presentation)
3690                 view->presentation_state = EV_PRESENTATION_NORMAL;
3691
3692         view->presentation = presentation;
3693         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
3694
3695         if (presentation) {
3696                 view->sizing_mode_saved = view->sizing_mode;
3697                 view->scale_saved = view->scale;
3698                 ev_view_set_sizing_mode (view, EV_SIZING_BEST_FIT);
3699         } else {
3700                 ev_view_set_sizing_mode (view, view->sizing_mode_saved);
3701                 ev_view_set_zoom (view, view->scale_saved, FALSE);
3702         }
3703
3704         gtk_widget_queue_resize (GTK_WIDGET (view));
3705
3706         if (presentation)
3707                 ev_view_presentation_transition_start (view);
3708         else
3709                 ev_view_presentation_transition_stop (view);
3710
3711         if (GTK_WIDGET_REALIZED (view)) {
3712                 if (view->presentation)
3713                         gdk_window_set_background (GTK_WIDGET(view)->window,
3714                                                    &GTK_WIDGET (view)->style->black);
3715                 else
3716                         gdk_window_set_background (GTK_WIDGET(view)->window,
3717                                                    &GTK_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
3718         }
3719
3720         g_object_notify (G_OBJECT (view), "presentation");
3721 }
3722
3723 gboolean
3724 ev_view_get_presentation (EvView *view)
3725 {
3726         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
3727
3728         return view->presentation;
3729 }
3730
3731 static gboolean
3732 transition_next_page (EvView *view)
3733 {
3734         ev_view_next_page (view);
3735
3736         return FALSE;
3737 }
3738
3739 static void
3740 ev_view_presentation_transition_stop (EvView *view)
3741 {
3742         if (view->trans_timeout_id > 0)
3743                 g_source_remove (view->trans_timeout_id);
3744         view->trans_timeout_id = 0;
3745 }
3746
3747 static void
3748 ev_view_presentation_transition_start (EvView *view)
3749 {
3750         gdouble duration;
3751
3752         if (!EV_IS_DOCUMENT_TRANSITION (view->document))
3753                 return;
3754
3755         ev_view_presentation_transition_stop (view);
3756
3757         duration = ev_document_transition_get_page_duration (EV_DOCUMENT_TRANSITION (view->document),
3758                                                              view->current_page);
3759         if (duration > 0)
3760                 view->trans_timeout_id = g_timeout_add (duration * 1000,
3761                                                         (GSourceFunc) transition_next_page,
3762                                                         view);
3763 }
3764
3765 void
3766 ev_view_set_sizing_mode (EvView       *view,
3767                          EvSizingMode  sizing_mode)
3768 {
3769         g_return_if_fail (EV_IS_VIEW (view));
3770
3771         if (view->sizing_mode == sizing_mode)
3772                 return;
3773
3774         view->sizing_mode = sizing_mode;
3775         gtk_widget_queue_resize (GTK_WIDGET (view));
3776
3777         g_object_notify (G_OBJECT (view), "sizing-mode");
3778 }
3779
3780 EvSizingMode
3781 ev_view_get_sizing_mode (EvView *view)
3782 {
3783         g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
3784
3785         return view->sizing_mode;
3786 }
3787
3788 gboolean
3789 ev_view_can_zoom_in (EvView *view)
3790 {
3791         return view->scale * ZOOM_IN_FACTOR <= view->max_scale;
3792 }
3793
3794 gboolean
3795 ev_view_can_zoom_out (EvView *view)
3796 {
3797         return view->scale * ZOOM_OUT_FACTOR >= view->min_scale;
3798 }
3799
3800 void
3801 ev_view_zoom_in (EvView *view)
3802 {
3803         g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
3804
3805         if (view->presentation)
3806                 return;
3807
3808         view->pending_scroll = SCROLL_TO_CENTER;
3809         ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
3810 }
3811
3812 void
3813 ev_view_zoom_out (EvView *view)
3814 {
3815         g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
3816
3817         if (view->presentation)
3818                 return;
3819
3820         view->pending_scroll = SCROLL_TO_CENTER;
3821         ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
3822 }
3823
3824 void
3825 ev_view_rotate_right (EvView *view)
3826 {
3827         int rotation = view->rotation + 90;
3828
3829         if (rotation >= 360) {
3830                 rotation -= 360;
3831         }
3832
3833         ev_view_set_rotation (view, rotation);
3834 }
3835
3836 void
3837 ev_view_rotate_left (EvView *view)
3838 {
3839         int rotation = view->rotation - 90;
3840
3841         if (rotation < 0) {
3842                 rotation += 360;
3843         }
3844
3845         ev_view_set_rotation (view, rotation);
3846 }
3847
3848 void
3849 ev_view_set_rotation (EvView *view, int rotation)
3850 {
3851         view->rotation = rotation;
3852
3853         if (view->pixbuf_cache) {
3854                 ev_pixbuf_cache_clear (view->pixbuf_cache);
3855                 gtk_widget_queue_resize (GTK_WIDGET (view));
3856         }
3857
3858         if (rotation != 0)
3859                 clear_selection (view);
3860
3861         g_object_notify (G_OBJECT (view), "rotation");
3862 }
3863
3864 int
3865 ev_view_get_rotation (EvView *view)
3866 {
3867         return view->rotation;
3868 }
3869
3870 static double
3871 zoom_for_size_fit_width (int doc_width,
3872                          int doc_height,
3873                          int target_width,
3874                          int target_height,
3875                          int vsb_width)
3876 {
3877         double scale;
3878
3879         scale = (double)target_width / doc_width;
3880
3881         if (doc_height * scale > target_height)
3882                 scale = (double) (target_width - vsb_width) / doc_width;
3883
3884         return scale;
3885 }
3886
3887 static double
3888 zoom_for_size_fit_height (int doc_width,
3889                           int doc_height,
3890                           int target_width,
3891                           int target_height,
3892                           int vsb_height)
3893 {
3894         double scale;
3895
3896         scale = (double)target_height / doc_height;
3897
3898         if (doc_width * scale > target_width)
3899                 scale = (double) (target_height - vsb_height) / doc_height;
3900
3901         return scale;
3902 }
3903
3904 static double
3905 zoom_for_size_best_fit (int doc_width,
3906                         int doc_height,
3907                         int target_width,
3908                         int target_height,
3909                         int vsb_width,
3910                         int hsb_width)
3911 {
3912         double w_scale;
3913         double h_scale;
3914
3915         w_scale = (double)target_width / doc_width;
3916         h_scale = (double)target_height / doc_height;
3917
3918         if (doc_height * w_scale > target_height)
3919                 w_scale = (double) (target_width - vsb_width) / doc_width;
3920         if (doc_width * h_scale > target_width)
3921                 h_scale = (double) (target_height - hsb_width) / doc_height;
3922
3923         return MIN (w_scale, h_scale);
3924 }
3925
3926
3927 static void
3928 ev_view_zoom_for_size_presentation (EvView *view,
3929                                     int     width,
3930                                     int     height)
3931 {
3932         int doc_width, doc_height;
3933         gdouble scale;
3934
3935         ev_page_cache_get_size (view->page_cache,
3936                                 view->current_page,
3937                                 view->rotation,
3938                                 1.0,
3939                                 &doc_width,
3940                                 &doc_height);
3941         scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
3942         ev_view_set_zoom (view, scale, FALSE);
3943 }
3944
3945 static void
3946 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
3947                            int     width,
3948                            int     height,
3949                            int     vsb_width,
3950                            int     hsb_height)
3951 {
3952         int doc_width, doc_height;
3953         GtkBorder border;
3954         gdouble scale;
3955
3956         ev_page_cache_get_max_width (view->page_cache,
3957                                      view->rotation,
3958                                      1.0,
3959                                      &doc_width);
3960         ev_page_cache_get_max_height (view->page_cache,
3961                                       view->rotation,
3962                                       1.0,
3963                                       &doc_height);
3964         compute_border (view, doc_width, doc_height, &border);
3965
3966         doc_width = doc_width * 2;
3967         width -= (2 * (border.left + border.right) + 3 * view->spacing);
3968         height -= (border.top + border.bottom + 2 * view->spacing - 1);
3969
3970         /* FIXME: We really need to calculate the overall height here, not the
3971          * page height.  We assume there's always a vertical scrollbar for
3972          * now.  We need to fix this. */
3973         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
3974                 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
3975         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
3976                 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
3977         else
3978                 g_assert_not_reached ();
3979
3980         ev_view_set_zoom (view, scale, FALSE);
3981 }
3982
3983 static void
3984 ev_view_zoom_for_size_continuous (EvView *view,
3985                                   int     width,
3986                                   int     height,
3987                                   int     vsb_width,
3988                                   int     hsb_height)
3989 {
3990         int doc_width, doc_height;
3991         GtkBorder border;
3992         gdouble scale;
3993
3994         ev_page_cache_get_max_width (view->page_cache,
3995                                      view->rotation,
3996                                      1.0,
3997                                      &doc_width);
3998         ev_page_cache_get_max_height (view->page_cache,
3999                                       view->rotation,
4000                                       1.0,
4001                                       &doc_height);
4002         compute_border (view, doc_width, doc_height, &border);
4003
4004         width -= (border.left + border.right + 2 * view->spacing);
4005         height -= (border.top + border.bottom + 2 * view->spacing - 1);
4006
4007         /* FIXME: We really need to calculate the overall height here, not the
4008          * page height.  We assume there's always a vertical scrollbar for
4009          * now.  We need to fix this. */
4010         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4011                 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
4012         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4013                 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
4014         else
4015                 g_assert_not_reached ();
4016
4017         ev_view_set_zoom (view, scale, FALSE);
4018 }
4019
4020 static void
4021 ev_view_zoom_for_size_dual_page (EvView *view,
4022                                  int     width,
4023                                  int     height,
4024                                  int     vsb_width,
4025                                  int     hsb_height)
4026 {
4027         GtkBorder border;
4028         gint doc_width, doc_height;
4029         gdouble scale;
4030         gint other_page;
4031
4032         other_page = view->current_page ^ 1;
4033
4034         /* Find the largest of the two. */
4035         ev_page_cache_get_size (view->page_cache,
4036                                 view->current_page,
4037                                 view->rotation,
4038                                 1.0,
4039                                 &doc_width, &doc_height);
4040
4041         if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
4042                 gint width_2, height_2;
4043                 ev_page_cache_get_size (view->page_cache,
4044                                         other_page,
4045                                         view->rotation,
4046                                         1.0,
4047                                         &width_2, &height_2);
4048                 if (width_2 > doc_width)
4049                         doc_width = width_2;
4050                 if (height_2 > doc_height)
4051                         doc_height = height_2;
4052         }
4053         compute_border (view, doc_width, doc_height, &border);
4054
4055         doc_width = doc_width * 2;
4056         width -= ((border.left + border.right)* 2 + 3 * view->spacing);
4057         height -= (border.top + border.bottom + 2 * view->spacing);
4058
4059         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4060                 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
4061         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4062                 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
4063         else
4064                 g_assert_not_reached ();
4065
4066         ev_view_set_zoom (view, scale, FALSE);
4067 }
4068
4069 static void
4070 ev_view_zoom_for_size_single_page (EvView *view,
4071                                    int     width,
4072                                    int     height,
4073                                    int     vsb_width,
4074                                    int     hsb_height)
4075 {
4076         int doc_width, doc_height;
4077         GtkBorder border;
4078         gdouble scale;
4079
4080         ev_page_cache_get_size (view->page_cache,
4081                                 view->current_page,
4082                                 view->rotation,
4083                                 1.0,
4084                                 &doc_width,
4085                                 &doc_height);
4086         /* Get an approximate border */
4087         compute_border (view, width, height, &border);
4088
4089         width -= (border.left + border.right + 2 * view->spacing);
4090         height -= (border.top + border.bottom + 2 * view->spacing);
4091
4092         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
4093                 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
4094         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
4095                 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
4096         else
4097                 g_assert_not_reached ();
4098
4099         ev_view_set_zoom (view, scale, FALSE);
4100 }
4101
4102 void
4103 ev_view_set_zoom_for_size (EvView *view,
4104                            int     width,
4105                            int     height,
4106                            int     vsb_width,
4107                            int     hsb_height)
4108 {
4109         g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
4110                           view->sizing_mode == EV_SIZING_BEST_FIT);
4111         g_return_if_fail (width >= 0);
4112         g_return_if_fail (height >= 0);
4113
4114         if (view->document == NULL)
4115                 return;
4116
4117         if (view->presentation)
4118                 ev_view_zoom_for_size_presentation (view, width, height);
4119         else if (view->continuous && view->dual_page)
4120                 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
4121         else if (view->continuous)
4122                 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
4123         else if (view->dual_page)
4124                 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
4125         else
4126                 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
4127 }
4128
4129 /*** Status text messages ***/
4130
4131 const char *
4132 ev_view_get_status (EvView *view)
4133 {
4134         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
4135
4136         return view->status;
4137 }
4138
4139 static void
4140 ev_view_set_status (EvView *view, const char *message)
4141 {
4142         g_return_if_fail (EV_IS_VIEW (view));
4143
4144         if (message != view->status) {
4145                 g_free (view->status);
4146                 view->status = g_strdup (message);
4147                 g_object_notify (G_OBJECT (view), "status");
4148         }
4149 }
4150
4151 static void
4152 update_find_status_message (EvView *view, gboolean this_page)
4153 {
4154         char *message;
4155
4156         if (this_page) {
4157                 int results;
4158
4159                 results = ev_document_find_get_n_results
4160                                 (EV_DOCUMENT_FIND (view->document),
4161                                  view->current_page);
4162                 /* TRANS: Sometimes this could be better translated as
4163                    "%d hit(s) on this page".  Therefore this string
4164                    contains plural cases. */
4165                 message = g_strdup_printf (ngettext ("%d found on this page",
4166                                                      "%d found on this page",
4167                                                      results),
4168                                            results);
4169         } else {
4170                 double percent;
4171
4172                 percent = ev_document_find_get_progress
4173                                 (EV_DOCUMENT_FIND (view->document));
4174                 message = g_strdup_printf (_("%3d%% remaining to search"),
4175                                            (int) ((1.0 - percent) * 100));
4176
4177         }
4178         ev_view_set_find_status (view, message);
4179         g_free (message);
4180 }
4181
4182 const char *
4183 ev_view_get_find_status (EvView *view)
4184 {
4185         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
4186
4187         return view->find_status;
4188 }
4189
4190 static void
4191 ev_view_set_find_status (EvView *view, const char *message)
4192 {
4193         g_return_if_fail (EV_IS_VIEW (view));
4194
4195         g_free (view->find_status);
4196         view->find_status = g_strdup (message);
4197         g_object_notify (G_OBJECT (view), "find-status");
4198 }
4199
4200 /*** Find ***/
4201
4202 static void
4203 jump_to_find_result (EvView *view)
4204 {
4205         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
4206         EvRectangle rect;
4207         GdkRectangle view_rect;
4208         int n_results;
4209         int page = view->current_page;
4210
4211         n_results = ev_document_find_get_n_results (find, page);
4212
4213         if (n_results > 0  && view->find_result < n_results) {
4214                 ev_document_find_get_result
4215                         (find, page, view->find_result, &rect);
4216
4217                 doc_rect_to_view_rect (view, page, &rect, &view_rect);
4218                 ensure_rectangle_is_visible (view, &view_rect);
4219         }
4220 }
4221
4222 /**
4223  * jump_to_find_page
4224  * @view: #EvView instance
4225  * @direction: Direction to look
4226  * @shift: Shift from current page
4227  *
4228  * Jumps to the first page that has occurences of searched word.
4229  * Uses a direction where to look and a shift from current page.
4230  *
4231  */
4232 static void
4233 jump_to_find_page (EvView *view, EvViewFindDirection direction, gint shift)
4234 {
4235         int n_pages, i;
4236
4237         n_pages = ev_page_cache_get_n_pages (view->page_cache);
4238
4239         for (i = 0; i < n_pages; i++) {
4240                 int has_results;
4241                 int page;
4242
4243                 if (direction == EV_VIEW_FIND_NEXT)
4244                         page = view->current_page + i;
4245                 else
4246                         page = view->current_page - i;
4247                 page += shift;
4248
4249                 if (page >= n_pages) {
4250                         page = page - n_pages;
4251                 }
4252                 if (page < 0)
4253                         page = page + n_pages;
4254
4255                 has_results = ev_document_find_page_has_results
4256                                 (EV_DOCUMENT_FIND (view->document), page);
4257                 if (has_results == -1) {
4258                         break;
4259                 } else if (has_results == 1) {
4260                         ev_page_cache_set_current_page (view->page_cache, page);
4261                         break;
4262                 }
4263         }
4264 }
4265
4266 gboolean
4267 ev_view_can_find_next (EvView *view)
4268 {
4269         if (EV_IS_DOCUMENT_FIND (view->document)) {
4270                 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
4271                 int i, n_pages;
4272
4273                 n_pages = ev_page_cache_get_n_pages (view->page_cache);
4274                 for (i = 0; i < n_pages; i++) {
4275                         if (ev_document_find_get_n_results (find, i) > 0) {
4276                                 return TRUE;
4277                         }
4278                 }
4279         }
4280
4281         return FALSE;
4282 }
4283
4284 void
4285 ev_view_find_next (EvView *view)
4286 {
4287         int n_results, n_pages;
4288         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
4289
4290         n_results = ev_document_find_get_n_results (find, view->current_page);
4291
4292         n_pages = ev_page_cache_get_n_pages (view->page_cache);
4293
4294         view->find_result++;
4295
4296         if (view->find_result >= n_results) {
4297
4298                 view->find_result = 0;
4299                 jump_to_find_page (view, EV_VIEW_FIND_NEXT, 1);
4300                 jump_to_find_result (view);
4301         } else {
4302                 jump_to_find_result (view);
4303                 gtk_widget_queue_draw (GTK_WIDGET (view));
4304         }
4305 }
4306
4307 gboolean
4308 ev_view_can_find_previous (EvView *view)
4309 {
4310         if (EV_IS_DOCUMENT_FIND (view->document)) {
4311                 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
4312                 int i, n_pages;
4313
4314                 n_pages = ev_page_cache_get_n_pages (view->page_cache);
4315                 for (i = n_pages - 1; i >= 0; i--) {
4316                         if (ev_document_find_get_n_results (find, i) > 0) {
4317                                 return TRUE;
4318                         }
4319                 }
4320         }
4321
4322         return FALSE;
4323 }
4324 void
4325 ev_view_find_previous (EvView *view)
4326 {
4327         int n_results, n_pages;
4328         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
4329         EvPageCache *page_cache;
4330
4331         page_cache = ev_page_cache_get (view->document);
4332
4333         n_results = ev_document_find_get_n_results (find, view->current_page);
4334
4335         n_pages = ev_page_cache_get_n_pages (page_cache);
4336
4337         view->find_result--;
4338
4339         if (view->find_result < 0) {
4340
4341                 jump_to_find_page (view, EV_VIEW_FIND_PREV, -1);
4342                 view->find_result = ev_document_find_get_n_results (find, view->current_page) - 1;
4343                 jump_to_find_result (view);
4344         } else {
4345                 jump_to_find_result (view);
4346                 gtk_widget_queue_draw (GTK_WIDGET (view));
4347         }
4348 }
4349
4350 void ev_view_search_changed (EvView *view)
4351 {
4352         /* search string has changed, focus on new search result */
4353         view->jump_to_find_result = TRUE;
4354 }
4355
4356 /*** Selections ***/
4357
4358 /* compute_new_selection_rect/text calculates the area currently selected by
4359  * view_rect.  each handles a different mode;
4360  */
4361 static GList *
4362 compute_new_selection_rect (EvView       *view,
4363                             GdkPoint     *start,
4364                             GdkPoint     *stop)
4365 {
4366         GdkRectangle view_rect;
4367         int n_pages, i;
4368         GList *list = NULL;
4369
4370         g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
4371
4372         view_rect.x = MIN (start->x, stop->x);
4373         view_rect.y = MIN (start->y, stop->y);
4374         view_rect.width = MAX (start->x, stop->x) - view_rect.x;
4375         view_rect.width = MAX (start->y, stop->y) - view_rect.y;
4376
4377         n_pages = ev_page_cache_get_n_pages (view->page_cache);
4378
4379         for (i = 0; i < n_pages; i++) {
4380                 GdkRectangle page_area;
4381                 GtkBorder border;
4382
4383                 if (get_page_extents (view, i, &page_area, &border)) {
4384                         GdkRectangle overlap;
4385
4386                         if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
4387                                 EvViewSelection *selection;
4388
4389                                 selection = g_new0 (EvViewSelection, 1);
4390                                 selection->page = i;
4391                                 view_rect_to_doc_rect (view, &overlap, &page_area,
4392                                                        &(selection->rect));
4393
4394                                 list = g_list_append (list, selection);
4395                         }
4396                 }
4397         }
4398
4399         return list;
4400 }
4401
4402 static gboolean
4403 gdk_rectangle_point_in (GdkRectangle *rectangle,
4404                         GdkPoint     *point)
4405 {
4406         return rectangle->x <= point->x &&
4407                 rectangle->y <= point->y &&
4408                 point->x < rectangle->x + rectangle->width &&
4409                 point->y < rectangle->y + rectangle->height;
4410 }
4411
4412 static GList *
4413 compute_new_selection_text (EvView   *view,
4414                             GdkPoint *start,
4415                             GdkPoint *stop)
4416 {
4417         int n_pages, i, first, last;
4418         GList *list = NULL;
4419         EvViewSelection *selection;
4420         gint width, height;
4421         int start_page, end_page;
4422
4423         g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
4424
4425         n_pages = ev_page_cache_get_n_pages (view->page_cache);
4426
4427         /* First figure out the range of pages the selection
4428          * affects. */
4429         first = n_pages;
4430         last = 0;
4431         if (view->continuous) {
4432                 start_page = 0;
4433                 end_page = n_pages;
4434         } else if (view->dual_page) {
4435                 start_page = view->start_page;
4436                 end_page = view->end_page + 1;
4437         } else {
4438                 start_page = view->current_page;
4439                 end_page = view->current_page + 1;
4440         }
4441
4442         for (i = start_page; i < end_page; i++) {
4443                 GdkRectangle page_area;
4444                 GtkBorder border;
4445
4446                 get_page_extents (view, i, &page_area, &border);
4447                 if (gdk_rectangle_point_in (&page_area, start) ||
4448                     gdk_rectangle_point_in (&page_area, stop)) {
4449                         if (first == n_pages)
4450                                 first = i;
4451                         last = i;
4452                 }
4453
4454         }
4455
4456
4457
4458         /* Now create a list of EvViewSelection's for the affected
4459          * pages.  This could be an empty list, a list of just one
4460          * page or a number of pages.*/
4461         for (i = first; i < last + 1; i++) {
4462                 GdkRectangle page_area;
4463                 GtkBorder border;
4464                 GdkPoint *point;
4465
4466                 ev_page_cache_get_size (view->page_cache, i,
4467                                         view->rotation,
4468                                         1.0, &width, &height);
4469
4470                 selection = g_new0 (EvViewSelection, 1);
4471                 selection->page = i;
4472                 selection->rect.x1 = selection->rect.y1 = 0;
4473                 selection->rect.x2 = width;
4474                 selection->rect.y2 = height;
4475
4476                 get_page_extents (view, i, &page_area, &border);
4477
4478                 if (gdk_rectangle_point_in (&page_area, start))
4479                         point = start;
4480                 else
4481                         point = stop;
4482
4483                 if (i == first)
4484                         view_point_to_doc_point (view, point, &page_area,
4485                                                  &selection->rect.x1,
4486                                                  &selection->rect.y1);
4487
4488                 /* If the selection is contained within just one page,
4489                  * make sure we don't write 'start' into both points
4490                  * in selection->rect. */
4491                 if (first == last)
4492                         point = stop;
4493
4494                 if (i == last)
4495                         view_point_to_doc_point (view, point, &page_area,
4496                                                  &selection->rect.x2,
4497                                                  &selection->rect.y2);
4498
4499                 list = g_list_append (list, selection);
4500         }
4501
4502         return list;
4503 }
4504
4505 /* This function takes the newly calculated list, and figures out which regions
4506  * have changed.  It then queues a redraw approporiately.
4507  */
4508 static void
4509 merge_selection_region (EvView *view,
4510                         GList  *new_list)
4511 {
4512         GList *old_list;
4513         GList *new_list_ptr, *old_list_ptr;
4514
4515         /* Update the selection */
4516         old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache);
4517         g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
4518         view->selection_info.selections = new_list;
4519         ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list);
4520         g_object_notify (G_OBJECT (view), "has-selection");
4521
4522         new_list_ptr = new_list;
4523         old_list_ptr = old_list;
4524
4525         while (new_list_ptr || old_list_ptr) {
4526                 EvViewSelection *old_sel, *new_sel;
4527                 int cur_page;
4528                 GdkRegion *region = NULL;
4529
4530                 new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL;
4531                 old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL;
4532
4533                 /* Assume that the lists are in order, and we run through them
4534                  * comparing them, one page at a time.  We come out with the
4535                  * first page we see. */
4536                 if (new_sel && old_sel) {
4537                         if (new_sel->page < old_sel->page) {
4538                                 new_list_ptr = new_list_ptr->next;
4539                                 old_sel = NULL;
4540                         } else if (new_sel->page > old_sel->page) {
4541                                 old_list_ptr = old_list_ptr->next;
4542                                 new_sel = NULL;
4543                         } else {
4544                                 new_list_ptr = new_list_ptr->next;
4545                                 old_list_ptr = old_list_ptr->next;
4546                         }
4547                 } else if (new_sel) {
4548                         new_list_ptr = new_list_ptr->next;
4549                 } else if (old_sel) {
4550                         old_list_ptr = old_list_ptr->next;
4551                 }
4552
4553                 g_assert (new_sel || old_sel);
4554
4555                 /* is the page we're looking at on the screen?*/
4556                 cur_page = new_sel ? new_sel->page : old_sel->page;
4557                 if (cur_page < view->start_page || cur_page > view->end_page)
4558                         continue;
4559
4560                 /* seed the cache with a new page.  We are going to need the new
4561                  * region too. */
4562                 if (new_sel) {
4563                         GdkRegion *tmp_region = NULL;
4564                         ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
4565                                                               cur_page,
4566                                                               view->scale,
4567                                                               &tmp_region);
4568                         if (tmp_region) {
4569                                 new_sel->covered_region = gdk_region_copy (tmp_region);
4570                         }
4571                 }
4572
4573                 /* Now we figure out what needs redrawing */
4574                 if (old_sel && new_sel) {
4575                         if (old_sel->covered_region &&
4576                             new_sel->covered_region) {
4577                                 /* We only want to redraw the areas that have
4578                                  * changed, so we xor the old and new regions
4579                                  * and redraw if it's different */
4580                                 region = gdk_region_copy (old_sel->covered_region);
4581                                 gdk_region_xor (region, new_sel->covered_region);
4582                                 if (gdk_region_empty (region)) {
4583                                         gdk_region_destroy (region);
4584                                         region = NULL;
4585                                 }
4586                         } else if (old_sel->covered_region) {
4587                                 region = gdk_region_copy (old_sel->covered_region);
4588                         } else if (new_sel->covered_region) {
4589                                 region = gdk_region_copy (new_sel->covered_region);
4590                         }
4591                 } else if (old_sel && !new_sel) {
4592                         if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) {
4593                                 region = gdk_region_copy (old_sel->covered_region);
4594                         }
4595                 } else if (!old_sel && new_sel) {
4596                         if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) {
4597                                 region = gdk_region_copy (new_sel->covered_region);
4598                         }
4599                 } else {
4600                         g_assert_not_reached ();
4601                 }
4602
4603                 /* Redraw the damaged region! */
4604                 if (region) {
4605                         GdkRectangle page_area;
4606                         GtkBorder border;
4607
4608                         get_page_extents (view, cur_page, &page_area, &border);
4609                         gdk_region_offset (region,
4610                                            page_area.x + border.left - view->scroll_x,
4611                                            page_area.y + border.top - view->scroll_y);
4612                         gdk_window_invalidate_region (GTK_WIDGET (view)->window, region, TRUE);
4613                         gdk_region_destroy (region);
4614                 }
4615         }
4616
4617         /* Free the old list, now that we're done with it. */
4618         g_list_foreach (old_list, (GFunc) selection_free, NULL);
4619 }
4620
4621 static void
4622 compute_selections (EvView   *view,
4623                     GdkPoint *start,
4624                     GdkPoint *stop)
4625 {
4626         GList *list;
4627
4628         if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
4629                 list = compute_new_selection_rect (view, start, stop);
4630         else
4631                 list = compute_new_selection_text (view, start, stop);
4632         merge_selection_region (view, list);
4633 }
4634
4635 /* Free's the selection.  It's up to the caller to queue redraws if needed.
4636  */
4637 static void
4638 selection_free (EvViewSelection *selection)
4639 {
4640         if (selection->covered_region)
4641                 gdk_region_destroy (selection->covered_region);
4642         g_free (selection);
4643 }
4644
4645 static void
4646 clear_selection (EvView *view)
4647 {
4648         g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
4649         view->selection_info.selections = NULL;
4650         view->selection_info.in_selection = FALSE;
4651         if (view->pixbuf_cache)
4652                 ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, NULL);
4653         g_object_notify (G_OBJECT (view), "has-selection");
4654 }
4655
4656
4657 void
4658 ev_view_select_all (EvView *view)
4659 {
4660         int n_pages, i;
4661
4662         /* Disable selection on rotated pages for the 0.4.0 series */
4663         if (view->rotation != 0)
4664                 return;
4665
4666         clear_selection (view);
4667
4668         n_pages = ev_page_cache_get_n_pages (view->page_cache);
4669         for (i = 0; i < n_pages; i++) {
4670                 int width, height;
4671                 EvViewSelection *selection;
4672
4673                 ev_page_cache_get_size (view->page_cache,
4674                                         i,
4675                                         view->rotation,
4676                                         1.0, &width, &height);
4677
4678                 selection = g_new0 (EvViewSelection, 1);
4679                 selection->page = i;
4680                 selection->rect.x1 = selection->rect.y1 = 0;
4681                 selection->rect.x2 = width;
4682                 selection->rect.y2 = height;
4683
4684                 view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
4685         }
4686
4687         ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
4688         g_object_notify (G_OBJECT (view), "has-selection");
4689         gtk_widget_queue_draw (GTK_WIDGET (view));
4690 }
4691
4692 gboolean
4693 ev_view_get_has_selection (EvView *view)
4694 {
4695         return view->selection_info.selections != NULL;
4696 }
4697
4698 static char *
4699 get_selected_text (EvView *ev_view)
4700 {
4701         GString *text;
4702         GList *l;
4703         gchar *normalized_text;
4704
4705         text = g_string_new (NULL);
4706
4707         ev_document_doc_mutex_lock ();
4708
4709         for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
4710                 EvViewSelection *selection = (EvViewSelection *)l->data;
4711                 char *tmp;
4712
4713                 tmp = ev_document_get_text (ev_view->document,
4714                                             selection->page,
4715                                             &selection->rect);
4716                 g_string_append (text, tmp);
4717                 g_free (tmp);
4718         }
4719
4720         ev_document_doc_mutex_unlock ();
4721
4722         normalized_text = g_utf8_normalize (text->str, text->len, G_NORMALIZE_NFKC);
4723         g_string_free (text, TRUE);
4724         return normalized_text;
4725 }
4726
4727 void
4728 ev_view_copy (EvView *ev_view)
4729 {
4730         GtkClipboard *clipboard;
4731         char *text;
4732
4733         if (!ev_document_can_get_text (ev_view->document)) {
4734                 return;
4735         }
4736
4737         text = get_selected_text (ev_view);
4738         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
4739                                               GDK_SELECTION_CLIPBOARD);
4740         gtk_clipboard_set_text (clipboard, text, -1);
4741         g_free (text);
4742 }
4743
4744 static void
4745 ev_view_primary_get_cb (GtkClipboard     *clipboard,
4746                         GtkSelectionData *selection_data,
4747                         guint             info,
4748                         gpointer          data)
4749 {
4750         EvView *ev_view = EV_VIEW (data);
4751         char *text;
4752
4753         if (!ev_document_can_get_text (ev_view->document)) {
4754                 return;
4755         }
4756
4757         text = get_selected_text (ev_view);
4758         if (text) {
4759                 gtk_selection_data_set_text (selection_data, text, -1);
4760                 g_free (text);
4761         }
4762 }
4763
4764 static void
4765 ev_view_primary_clear_cb (GtkClipboard *clipboard,
4766                           gpointer      data)
4767 {
4768         EvView *view = EV_VIEW (data);
4769
4770         clear_selection (view);
4771 }
4772
4773 static void
4774 ev_view_update_primary_selection (EvView *ev_view)
4775 {
4776         GtkClipboard *clipboard;
4777
4778         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
4779                                               GDK_SELECTION_PRIMARY);
4780
4781         if (ev_view->selection_info.selections) {
4782                 if (!gtk_clipboard_set_with_owner (clipboard,
4783                                                    clipboard_targets,
4784                                                    G_N_ELEMENTS (clipboard_targets),
4785                                                    ev_view_primary_get_cb,
4786                                                    ev_view_primary_clear_cb,
4787                                                    G_OBJECT (ev_view)))
4788                         ev_view_primary_clear_cb (clipboard, ev_view);
4789         } else {
4790                 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
4791                         gtk_clipboard_clear (clipboard);
4792         }
4793 }
4794
4795 /*** Cursor operations ***/
4796
4797 static GdkCursor *
4798 ev_view_create_invisible_cursor(void)
4799 {
4800        GdkBitmap *empty;
4801        GdkColor black = { 0, 0, 0, 0 };
4802        static char bits[] = { 0x00 };
4803
4804        empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
4805
4806        return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
4807 }
4808
4809 static void
4810 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
4811 {
4812         GdkCursor *cursor = NULL;
4813         GdkDisplay *display;
4814         GtkWidget *widget;
4815
4816         if (view->cursor == new_cursor) {
4817                 return;
4818         }
4819
4820         widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
4821         display = gtk_widget_get_display (widget);
4822         view->cursor = new_cursor;
4823
4824         switch (new_cursor) {
4825                 case EV_VIEW_CURSOR_NORMAL:
4826                         gdk_window_set_cursor (widget->window, NULL);
4827                         break;
4828                 case EV_VIEW_CURSOR_IBEAM:
4829                         cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
4830                         break;
4831                 case EV_VIEW_CURSOR_LINK:
4832                         cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
4833                         break;
4834                 case EV_VIEW_CURSOR_WAIT:
4835                         cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
4836                         break;
4837                 case EV_VIEW_CURSOR_HIDDEN:
4838                         cursor = ev_view_create_invisible_cursor ();
4839                         break;
4840                 case EV_VIEW_CURSOR_DRAG:
4841                         cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
4842                         break;
4843         }
4844
4845         if (cursor) {
4846                 gdk_window_set_cursor (widget->window, cursor);
4847                 gdk_cursor_unref (cursor);
4848                 gdk_flush();
4849         }
4850 }
4851
4852 void
4853 ev_view_hide_cursor (EvView *view)
4854 {
4855        ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
4856 }
4857
4858 void
4859 ev_view_show_cursor (EvView *view)
4860 {
4861        ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
4862 }
4863
4864 static void
4865 ev_view_reset_presentation_state (EvView *view)
4866 {
4867         if (!view->presentation ||
4868             view->presentation_state == EV_PRESENTATION_NORMAL)
4869                 return;
4870
4871         view->presentation_state = EV_PRESENTATION_NORMAL;
4872         gdk_window_set_background (GTK_WIDGET (view)->window,
4873                                    &GTK_WIDGET (view)->style->black);
4874         gtk_widget_queue_draw (GTK_WIDGET (view));
4875 }
4876
4877 gboolean
4878 ev_view_next_page (EvView *view)
4879 {
4880         int page, n_pages;
4881
4882         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4883
4884         if (!view->page_cache)
4885                 return FALSE;
4886
4887         ev_view_presentation_transition_stop (view);
4888         ev_view_reset_presentation_state (view);
4889
4890         page = ev_page_cache_get_current_page (view->page_cache);
4891         n_pages = ev_page_cache_get_n_pages (view->page_cache);
4892
4893         if (view->dual_page && !view->presentation)
4894                 page = page + 2;
4895         else
4896                 page = page + 1;
4897
4898         if (page < n_pages) {
4899                 ev_page_cache_set_current_page (view->page_cache, page);
4900                 return TRUE;
4901         } else if (view->presentation && page == n_pages) {
4902                 view->presentation_state = EV_PRESENTATION_END;
4903                 gtk_widget_queue_draw (GTK_WIDGET (view));
4904                 return TRUE;
4905         } else if (view->dual_page && page == n_pages) {
4906                 ev_page_cache_set_current_page (view->page_cache, page - 1);
4907                 return TRUE;
4908         } else {
4909                 return FALSE;
4910         }
4911 }
4912
4913 gboolean
4914 ev_view_previous_page (EvView *view)
4915 {
4916         int page;
4917
4918         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
4919
4920         if (!view->page_cache)
4921                 return FALSE;
4922
4923         if (view->presentation &&
4924             view->presentation_state == EV_PRESENTATION_END) {
4925                 ev_view_reset_presentation_state (view);
4926                 return TRUE;
4927         }
4928
4929         ev_view_reset_presentation_state (view);
4930
4931         page = ev_page_cache_get_current_page (view->page_cache);
4932
4933         if (view->dual_page && !view->presentation)
4934                 page = page - 2;
4935         else
4936                 page = page - 1;
4937
4938         if (page >= 0) {
4939                 ev_page_cache_set_current_page (view->page_cache, page);
4940                 return TRUE;
4941         } else if (ev_view_get_dual_page (view) && page == -1) {
4942                 ev_page_cache_set_current_page (view->page_cache, 0);
4943                 return TRUE;
4944         } else {
4945                 return FALSE;
4946         }
4947 }
4948
4949 /*** Enum description for usage in signal ***/
4950
4951 GType
4952 ev_sizing_mode_get_type (void)
4953 {
4954   static GType etype = 0;
4955   if (etype == 0) {
4956     static const GEnumValue values[] = {
4957       { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
4958       { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
4959       { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
4960       { 0, NULL, NULL }
4961     };
4962     etype = g_enum_register_static ("EvSizingMode", values);
4963   }
4964   return etype;
4965 }
4966
4967 GType
4968 ev_scroll_type_get_type (void)
4969 {
4970   static GType etype = 0;
4971   if (etype == 0) {
4972     static const GEnumValue values[] = {
4973       { EV_SCROLL_PAGE_FORWARD, "EV_SCROLL_PAGE_FORWARD", "scroll-page-forward" },
4974       { EV_SCROLL_PAGE_BACKWARD, "EV_SCROLL_PAGE_BACKWARD", "scroll-page-backward" },
4975       { EV_SCROLL_STEP_FORWARD, "EV_SCROLL_STEP_FORWARD", "scroll-step-forward" },
4976       { EV_SCROLL_STEP_FORWARD, "EV_SCROLL_STEP_FORWARD", "scroll-step-forward" },
4977       { EV_SCROLL_STEP_UP, "EV_SCROLL_STEP_UP", "scroll-step-up" },
4978       { EV_SCROLL_STEP_DOWN, "EV_SCROLL_STEP_DOWN", "scroll-step-down" },
4979       { 0, NULL, NULL }
4980     };
4981     etype = g_enum_register_static ("EvScrollType", values);
4982   }
4983   return etype;
4984 }