1 /* this file is part of evince, a gnome document viewer
3 * Copyright (C) 2004 Red Hat, Inc.
6 * Jonathan Blandford <jrb@alum.mit.edu>
8 * Evince is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * Evince is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
28 #include <glib/gi18n.h>
31 #include "ev-sidebar-page.h"
32 #include "ev-sidebar-links.h"
33 #include "ev-job-queue.h"
34 #include "ev-document-links.h"
35 #include "ev-window.h"
38 struct _EvSidebarLinksPrivate {
41 /* Keep these ids around for blocking */
43 guint page_changed_id;
44 guint row_activated_id;
49 EvPageCache *page_cache;
63 static void links_page_num_func (GtkTreeViewColumn *tree_column,
64 GtkCellRenderer *cell,
65 GtkTreeModel *tree_model,
67 EvSidebarLinks *sidebar_links);
68 static void update_page_callback (EvPageCache *page_cache,
70 EvSidebarLinks *sidebar_links);
71 static void row_activated_callback (GtkTreeView *treeview,
73 GtkTreeViewColumn *arg2,
75 static void job_finished_callback (EvJobLinks *job,
76 EvSidebarLinks *sidebar_links);
77 static void ev_sidebar_links_page_iface_init (EvSidebarPageIface *iface);
78 static void ev_sidebar_links_set_document (EvSidebarPage *sidebar_page,
79 EvDocument *document);
80 static gboolean ev_sidebar_links_support_document (EvSidebarPage *sidebar_page,
81 EvDocument *document);
82 static const gchar* ev_sidebar_links_get_label (EvSidebarPage *sidebar_page);
84 static guint signals[N_SIGNALS];
86 G_DEFINE_TYPE_EXTENDED (EvSidebarLinks,
90 G_IMPLEMENT_INTERFACE (EV_TYPE_SIDEBAR_PAGE,
91 ev_sidebar_links_page_iface_init))
94 #define EV_SIDEBAR_LINKS_GET_PRIVATE(object) \
95 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_LINKS, EvSidebarLinksPrivate))
98 ev_sidebar_links_set_property (GObject *object,
103 EvSidebarLinks *ev_sidebar_links;
106 ev_sidebar_links = EV_SIDEBAR_LINKS (object);
111 model = ev_sidebar_links->priv->model;
112 ev_sidebar_links->priv->model = GTK_TREE_MODEL (g_value_dup_object (value));
114 g_object_unref (model);
117 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
123 ev_sidebar_links_get_property (GObject *object,
128 EvSidebarLinks *ev_sidebar_links;
130 ev_sidebar_links = EV_SIDEBAR_LINKS (object);
135 g_value_set_object (value, ev_sidebar_links->priv->model);
138 g_value_set_object (value, ev_sidebar_links->priv->tree_view);
141 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
147 ev_sidebar_links_dispose (GObject *object)
149 EvSidebarLinks *sidebar = EV_SIDEBAR_LINKS (object);
151 if (sidebar->priv->job) {
152 g_signal_handlers_disconnect_by_func (sidebar->priv->job,
153 job_finished_callback, sidebar);
154 ev_job_queue_remove_job (sidebar->priv->job);
155 g_object_unref (sidebar->priv->job);
156 sidebar->priv->job = NULL;
159 if (sidebar->priv->model) {
160 g_object_unref (sidebar->priv->model);
161 sidebar->priv->model = NULL;
164 if (sidebar->priv->document) {
165 g_object_unref (sidebar->priv->document);
166 sidebar->priv->document = NULL;
167 sidebar->priv->page_cache = NULL;
171 G_OBJECT_CLASS (ev_sidebar_links_parent_class)->dispose (object);
175 ev_sidebar_links_class_init (EvSidebarLinksClass *ev_sidebar_links_class)
177 GObjectClass *g_object_class;
179 g_object_class = G_OBJECT_CLASS (ev_sidebar_links_class);
181 g_object_class->set_property = ev_sidebar_links_set_property;
182 g_object_class->get_property = ev_sidebar_links_get_property;
183 g_object_class->dispose = ev_sidebar_links_dispose;
185 signals[LINK_ACTIVATED] = g_signal_new ("link-activated",
186 G_TYPE_FROM_CLASS (g_object_class),
187 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
188 G_STRUCT_OFFSET (EvSidebarLinksClass, link_activated),
190 g_cclosure_marshal_VOID__OBJECT,
191 G_TYPE_NONE, 1, G_TYPE_OBJECT);
193 g_object_class_install_property (g_object_class,
195 g_param_spec_object ("model",
200 g_object_class_override_property (g_object_class,
204 g_type_class_add_private (g_object_class, sizeof (EvSidebarLinksPrivate));
208 selection_changed_callback (GtkTreeSelection *selection,
209 EvSidebarLinks *ev_sidebar_links)
211 EvDocument *document;
215 g_return_if_fail (EV_IS_SIDEBAR_LINKS (ev_sidebar_links));
217 document = EV_DOCUMENT (ev_sidebar_links->priv->document);
218 g_return_if_fail (ev_sidebar_links->priv->document != NULL);
220 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
223 gtk_tree_model_get (model, &iter,
224 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
230 g_signal_handler_block (ev_sidebar_links->priv->page_cache,
231 ev_sidebar_links->priv->page_changed_id);
232 g_signal_emit (ev_sidebar_links, signals[LINK_ACTIVATED], 0, link);
233 g_signal_handler_unblock (ev_sidebar_links->priv->page_cache,
234 ev_sidebar_links->priv->page_changed_id);
236 g_object_unref (link);
240 static GtkTreeModel *
241 create_loading_model (void)
243 GtkTreeModel *retval;
247 /* Creates a fake model to indicate that we're loading */
248 retval = (GtkTreeModel *)gtk_list_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
253 gtk_list_store_append (GTK_LIST_STORE (retval), &iter);
254 markup = g_strdup_printf ("<span size=\"larger\" style=\"italic\">%s</span>", _("Loading..."));
255 gtk_list_store_set (GTK_LIST_STORE (retval), &iter,
256 EV_DOCUMENT_LINKS_COLUMN_MARKUP, markup,
257 EV_DOCUMENT_LINKS_COLUMN_EXPAND, FALSE,
258 EV_DOCUMENT_LINKS_COLUMN_LINK, NULL,
266 get_page_from_link (EvLink *link)
268 EvLinkAction *action;
271 action = ev_link_get_action (link);
275 if (ev_link_action_get_action_type (action) !=
276 EV_LINK_ACTION_TYPE_GOTO_DEST)
279 dest = ev_link_action_get_dest (action);
281 return ev_link_dest_get_page (dest);
287 print_section_cb (GtkWidget *menuitem, EvSidebarLinks *sidebar)
290 GtkTreeSelection *selection;
294 selection = gtk_tree_view_get_selection
295 (GTK_TREE_VIEW (sidebar->priv->tree_view));
297 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
299 int first_page, last_page = -1;
301 gtk_tree_model_get (model, &iter,
302 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
308 first_page = get_page_from_link (link) + 1;
309 if (first_page == -1) {
310 g_object_unref (link);
315 g_object_unref (link);
317 if (gtk_tree_model_iter_next (model, &iter)) {
318 gtk_tree_model_get (model, &iter,
319 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
323 last_page = get_page_from_link (link);
324 g_object_unref (link);
327 last_page = ev_page_cache_get_n_pages (sidebar->priv->page_cache);
331 last_page = ev_page_cache_get_n_pages (sidebar->priv->page_cache);
333 window = gtk_widget_get_toplevel (GTK_WIDGET (sidebar));
334 if (EV_IS_WINDOW (window)) {
335 #ifdef WITH_GNOME_PRINT
336 ev_window_print_range (EV_WINDOW (window),
337 first_page, last_page);
344 build_popup_menu (EvSidebarLinks *sidebar)
349 menu = gtk_menu_new ();
350 item = gtk_image_menu_item_new_from_stock (GTK_STOCK_PRINT, NULL);
351 gtk_label_set_label (GTK_LABEL (GTK_BIN (item)->child), _("Print..."));
352 gtk_widget_show (item);
353 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
354 g_signal_connect (item, "activate",
355 G_CALLBACK (print_section_cb), sidebar);
357 return GTK_MENU (menu);
361 popup_menu_cb (GtkWidget *treeview, EvSidebarLinks *sidebar)
363 GtkMenu *menu = build_popup_menu (sidebar);
365 gtk_menu_popup (menu, NULL, NULL,
366 ev_gui_menu_position_tree_selection,
367 sidebar->priv->tree_view, 0,
368 gtk_get_current_event_time ());
369 gtk_menu_shell_select_first (GTK_MENU_SHELL (menu), FALSE);
373 button_press_cb (GtkWidget *treeview,
374 GdkEventButton *event,
375 EvSidebarLinks *sidebar)
377 GtkTreePath *path = NULL;
379 if (event->button == 3) {
380 if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (treeview),
385 gtk_tree_view_set_cursor (GTK_TREE_VIEW (treeview),
387 gtk_menu_popup (build_popup_menu (sidebar), NULL,
388 NULL, NULL, NULL, event->button,
389 gtk_get_current_event_time ());
390 gtk_tree_path_free (path);
401 ev_sidebar_links_construct (EvSidebarLinks *ev_sidebar_links)
403 EvSidebarLinksPrivate *priv;
405 GtkTreeViewColumn *column;
406 GtkCellRenderer *renderer;
407 GtkTreeSelection *selection;
408 GtkTreeModel *loading_model;
410 priv = ev_sidebar_links->priv;
412 swindow = gtk_scrolled_window_new (NULL, NULL);
414 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
415 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
416 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow),
419 /* Create tree view */
420 loading_model = create_loading_model ();
421 priv->tree_view = gtk_tree_view_new_with_model (loading_model);
422 g_object_unref (loading_model);
424 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
425 gtk_tree_selection_set_mode (selection, GTK_SELECTION_NONE);
426 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
427 gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view);
429 gtk_box_pack_start (GTK_BOX (ev_sidebar_links), swindow, TRUE, TRUE, 0);
430 gtk_widget_show_all (GTK_WIDGET (ev_sidebar_links));
432 column = gtk_tree_view_column_new ();
433 gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
434 gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), column);
436 renderer = (GtkCellRenderer*)
437 g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
438 "ellipsize", PANGO_ELLIPSIZE_END,
440 gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, TRUE);
441 gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer,
442 "markup", EV_DOCUMENT_LINKS_COLUMN_MARKUP,
446 renderer = gtk_cell_renderer_text_new ();
447 gtk_tree_view_column_pack_end (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
448 gtk_tree_view_column_set_cell_data_func (GTK_TREE_VIEW_COLUMN (column), renderer,
449 (GtkTreeCellDataFunc) links_page_num_func,
450 ev_sidebar_links, NULL);
452 g_signal_connect (GTK_TREE_VIEW (priv->tree_view),
453 "button_press_event",
454 G_CALLBACK (button_press_cb),
456 g_signal_connect (GTK_TREE_VIEW (priv->tree_view),
458 G_CALLBACK (popup_menu_cb),
463 ev_sidebar_links_init (EvSidebarLinks *ev_sidebar_links)
465 ev_sidebar_links->priv = EV_SIDEBAR_LINKS_GET_PRIVATE (ev_sidebar_links);
467 ev_sidebar_links_construct (ev_sidebar_links);
471 links_page_num_func (GtkTreeViewColumn *tree_column,
472 GtkCellRenderer *cell,
473 GtkTreeModel *tree_model,
475 EvSidebarLinks *sidebar_links)
480 gtk_tree_model_get (tree_model, iter,
481 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
491 page = get_page_from_link (link);
497 page_label = ev_page_cache_get_page_label (sidebar_links->priv->page_cache,
499 page_string = g_markup_printf_escaped ("<i>%s</i>", page_label);
502 "markup", page_string,
507 g_free (page_string);
514 g_object_unref (link);
517 /* Public Functions */
520 ev_sidebar_links_new (void)
522 GtkWidget *ev_sidebar_links;
524 ev_sidebar_links = g_object_new (EV_TYPE_SIDEBAR_LINKS, NULL);
526 return ev_sidebar_links;
530 update_page_callback_foreach (GtkTreeModel *model,
535 EvSidebarLinks *sidebar_links = (data);
538 gtk_tree_model_get (model, iter,
539 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
546 dest_page = get_page_from_link (link);
547 g_object_unref (link);
549 current_page = ev_page_cache_get_current_page (sidebar_links->priv->page_cache);
551 if (dest_page == current_page) {
552 GtkTreeSelection *selection;
554 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (sidebar_links->priv->tree_view));
555 gtk_tree_view_expand_to_path (GTK_TREE_VIEW (sidebar_links->priv->tree_view),
557 gtk_tree_selection_select_path (selection, path);
567 update_page_callback (EvPageCache *page_cache,
569 EvSidebarLinks *sidebar_links)
571 GtkTreeSelection *selection;
575 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (sidebar_links->priv->tree_view));
577 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
580 gtk_tree_model_get (model, &iter,
581 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
587 dest_page = get_page_from_link (link);
588 g_object_unref (link);
590 current_page = ev_page_cache_get_current_page (sidebar_links->priv->page_cache);
591 if (dest_page == current_page)
596 /* We go through the tree linearly looking for the first page that
597 * matches. This is pretty inefficient. We can do something neat with
598 * a GtkTreeModelSort here to make it faster, if it turns out to be
601 g_signal_handler_block (selection, sidebar_links->priv->selection_id);
602 g_signal_handler_block (sidebar_links->priv->tree_view, sidebar_links->priv->row_activated_id);
604 gtk_tree_model_foreach (model,
605 update_page_callback_foreach,
609 g_signal_handler_unblock (selection, sidebar_links->priv->selection_id);
610 g_signal_handler_unblock (sidebar_links->priv->tree_view, sidebar_links->priv->row_activated_id);
614 row_activated_callback (GtkTreeView *treeview,
616 GtkTreeViewColumn *arg2,
619 if (gtk_tree_view_row_expanded (GTK_TREE_VIEW (treeview), arg1)) {
620 gtk_tree_view_collapse_row (GTK_TREE_VIEW (treeview), arg1);
622 gtk_tree_view_expand_row (GTK_TREE_VIEW (treeview), arg1, FALSE);
629 expand_open_links (GtkTreeView *tree_view, GtkTreeModel *model, GtkTreeIter *parent)
634 if (gtk_tree_model_iter_children (model, &iter, parent)) {
636 gtk_tree_model_get (model, &iter,
637 EV_DOCUMENT_LINKS_COLUMN_EXPAND, &expand,
642 path = gtk_tree_model_get_path (model, &iter);
643 gtk_tree_view_expand_row (tree_view, path, FALSE);
644 gtk_tree_path_free (path);
647 expand_open_links (tree_view, model, &iter);
648 } while (gtk_tree_model_iter_next (model, &iter));
653 job_finished_callback (EvJobLinks *job,
654 EvSidebarLinks *sidebar_links)
656 EvSidebarLinksPrivate *priv;
657 GtkTreeSelection *selection;
659 priv = sidebar_links->priv;
661 priv->model = job->model;
662 g_object_notify (G_OBJECT (sidebar_links), "model");
664 gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), job->model);
666 g_object_unref (job);
669 expand_open_links (GTK_TREE_VIEW (priv->tree_view), priv->model, NULL);
671 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
672 gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
673 priv->selection_id = g_signal_connect (selection, "changed",
674 G_CALLBACK (selection_changed_callback),
676 priv->page_changed_id = g_signal_connect (priv->page_cache, "page-changed",
677 G_CALLBACK (update_page_callback),
679 priv->row_activated_id = g_signal_connect (G_OBJECT (priv->tree_view), "row-activated",
680 G_CALLBACK (row_activated_callback), sidebar_links);
681 update_page_callback (priv->page_cache,
682 ev_page_cache_get_current_page (priv->page_cache),
688 ev_sidebar_links_set_document (EvSidebarPage *sidebar_page,
689 EvDocument *document)
691 EvSidebarLinks *sidebar_links;
692 EvSidebarLinksPrivate *priv;
694 g_return_if_fail (EV_IS_SIDEBAR_PAGE (sidebar_page));
695 g_return_if_fail (EV_IS_DOCUMENT (document));
697 sidebar_links = EV_SIDEBAR_LINKS (sidebar_page);
699 priv = sidebar_links->priv;
701 if (priv->document) {
702 gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), NULL);
703 g_object_unref (priv->document);
706 priv->document = g_object_ref (document);
707 priv->page_cache = ev_page_cache_get (document);
710 g_signal_handlers_disconnect_by_func (priv->job,
711 job_finished_callback,
713 g_object_unref (priv->job);
716 priv->job = ev_job_links_new (document);
717 g_signal_connect (priv->job,
719 G_CALLBACK (job_finished_callback),
721 /* The priority doesn't matter for this job */
722 ev_job_queue_add_job (priv->job, EV_JOB_PRIORITY_LOW);
726 ev_sidebar_links_support_document (EvSidebarPage *sidebar_page,
727 EvDocument *document)
729 return (EV_IS_DOCUMENT_LINKS (document) &&
730 ev_document_links_has_document_links (EV_DOCUMENT_LINKS (document)));
734 ev_sidebar_links_get_label (EvSidebarPage *sidebar_page)
740 ev_sidebar_links_page_iface_init (EvSidebarPageIface *iface)
742 iface->support_document = ev_sidebar_links_support_document;
743 iface->set_document = ev_sidebar_links_set_document;
744 iface->get_label = ev_sidebar_links_get_label;