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 print_section_cb (GtkWidget *menuitem, EvSidebarLinks *sidebar)
269 GtkTreeSelection *selection;
273 selection = gtk_tree_view_get_selection
274 (GTK_TREE_VIEW (sidebar->priv->tree_view));
276 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
278 int first_page, last_page;
280 gtk_tree_model_get (model, &iter,
281 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
283 first_page = ev_link_get_page (link) + 1;
286 g_object_unref (link);
288 if (gtk_tree_model_iter_next (model, &iter)) {
289 gtk_tree_model_get (model, &iter,
290 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
292 last_page = ev_link_get_page (link);
295 g_object_unref (link);
297 last_page = ev_page_cache_get_n_pages (sidebar->priv->page_cache);
300 window = gtk_widget_get_toplevel (GTK_WIDGET (sidebar));
301 if (EV_IS_WINDOW (window)) {
302 #ifdef WITH_GNOME_PRINT
303 ev_window_print_range (EV_WINDOW (window),
304 first_page, last_page);
311 build_popup_menu (EvSidebarLinks *sidebar)
316 menu = gtk_menu_new ();
317 item = gtk_image_menu_item_new_from_stock (GTK_STOCK_PRINT, NULL);
318 gtk_label_set_label (GTK_LABEL (GTK_BIN (item)->child), _("Print..."));
319 gtk_widget_show (item);
320 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
321 g_signal_connect (item, "activate",
322 G_CALLBACK (print_section_cb), sidebar);
324 return GTK_MENU (menu);
328 popup_menu_cb (GtkWidget *treeview, EvSidebarLinks *sidebar)
330 GtkMenu *menu = build_popup_menu (sidebar);
332 gtk_menu_popup (menu, NULL, NULL,
333 ev_gui_menu_position_tree_selection,
334 sidebar->priv->tree_view, 0,
335 gtk_get_current_event_time ());
336 gtk_menu_shell_select_first (GTK_MENU_SHELL (menu), FALSE);
340 button_press_cb (GtkWidget *treeview,
341 GdkEventButton *event,
342 EvSidebarLinks *sidebar)
344 GtkTreePath *path = NULL;
346 if (event->button == 3) {
347 if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (treeview),
352 gtk_tree_view_set_cursor (GTK_TREE_VIEW (treeview),
354 gtk_menu_popup (build_popup_menu (sidebar), NULL,
355 NULL, NULL, NULL, event->button,
356 gtk_get_current_event_time ());
357 gtk_tree_path_free (path);
368 ev_sidebar_links_construct (EvSidebarLinks *ev_sidebar_links)
370 EvSidebarLinksPrivate *priv;
372 GtkTreeViewColumn *column;
373 GtkCellRenderer *renderer;
374 GtkTreeSelection *selection;
375 GtkTreeModel *loading_model;
377 priv = ev_sidebar_links->priv;
379 swindow = gtk_scrolled_window_new (NULL, NULL);
381 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
382 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
383 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow),
386 /* Create tree view */
387 loading_model = create_loading_model ();
388 priv->tree_view = gtk_tree_view_new_with_model (loading_model);
389 g_object_unref (loading_model);
391 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
392 gtk_tree_selection_set_mode (selection, GTK_SELECTION_NONE);
393 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
394 gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view);
396 gtk_box_pack_start (GTK_BOX (ev_sidebar_links), swindow, TRUE, TRUE, 0);
397 gtk_widget_show_all (GTK_WIDGET (ev_sidebar_links));
399 column = gtk_tree_view_column_new ();
400 gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
401 gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), column);
403 renderer = (GtkCellRenderer*)
404 g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
405 "ellipsize", PANGO_ELLIPSIZE_END,
407 gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, TRUE);
408 gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer,
409 "markup", EV_DOCUMENT_LINKS_COLUMN_MARKUP,
413 renderer = gtk_cell_renderer_text_new ();
414 gtk_tree_view_column_pack_end (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
415 gtk_tree_view_column_set_cell_data_func (GTK_TREE_VIEW_COLUMN (column), renderer,
416 (GtkTreeCellDataFunc) links_page_num_func,
417 ev_sidebar_links, NULL);
419 g_signal_connect (GTK_TREE_VIEW (priv->tree_view),
420 "button_press_event",
421 G_CALLBACK (button_press_cb),
423 g_signal_connect (GTK_TREE_VIEW (priv->tree_view),
425 G_CALLBACK (popup_menu_cb),
430 ev_sidebar_links_init (EvSidebarLinks *ev_sidebar_links)
432 ev_sidebar_links->priv = EV_SIDEBAR_LINKS_GET_PRIVATE (ev_sidebar_links);
434 ev_sidebar_links_construct (ev_sidebar_links);
438 links_page_num_func (GtkTreeViewColumn *tree_column,
439 GtkCellRenderer *cell,
440 GtkTreeModel *tree_model,
442 EvSidebarLinks *sidebar_links)
446 gtk_tree_model_get (tree_model, iter,
447 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
451 ev_link_get_page (link) >= 0) {
455 page_label = ev_page_cache_get_page_label (sidebar_links->priv->page_cache, ev_link_get_page (link));
456 page_string = g_markup_printf_escaped ("<i>%s</i>", page_label);
459 "markup", page_string,
464 g_free (page_string);
472 g_object_unref (link);
475 /* Public Functions */
478 ev_sidebar_links_new (void)
480 GtkWidget *ev_sidebar_links;
482 ev_sidebar_links = g_object_new (EV_TYPE_SIDEBAR_LINKS, NULL);
484 return ev_sidebar_links;
488 update_page_callback_foreach (GtkTreeModel *model,
493 EvSidebarLinks *sidebar_links = (data);
496 gtk_tree_model_get (model, iter,
497 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
503 current_page = ev_page_cache_get_current_page (sidebar_links->priv->page_cache);
504 if (ev_link_get_page (link) == current_page) {
505 GtkTreeSelection *selection;
507 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (sidebar_links->priv->tree_view));
508 gtk_tree_selection_select_path (selection, path);
509 g_object_unref (link);
513 g_object_unref (link);
520 update_page_callback (EvPageCache *page_cache,
522 EvSidebarLinks *sidebar_links)
524 GtkTreeSelection *selection;
528 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (sidebar_links->priv->tree_view));
530 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
533 gtk_tree_model_get (model, &iter,
534 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
538 current_page = ev_page_cache_get_current_page (sidebar_links->priv->page_cache);
539 if (ev_link_get_page (link) == current_page) {
540 g_object_unref (link);
543 g_object_unref (link);
547 /* We go through the tree linearly looking for the first page that
548 * matches. This is pretty inefficient. We can do something neat with
549 * a GtkTreeModelSort here to make it faster, if it turns out to be
552 g_signal_handler_block (selection, sidebar_links->priv->selection_id);
553 g_signal_handler_block (sidebar_links->priv->tree_view, sidebar_links->priv->row_activated_id);
555 gtk_tree_model_foreach (model,
556 update_page_callback_foreach,
559 g_signal_handler_unblock (selection, sidebar_links->priv->selection_id);
560 g_signal_handler_unblock (sidebar_links->priv->tree_view, sidebar_links->priv->row_activated_id);
564 row_activated_callback (GtkTreeView *treeview,
566 GtkTreeViewColumn *arg2,
569 if (gtk_tree_view_row_expanded (GTK_TREE_VIEW (treeview), arg1)) {
570 gtk_tree_view_collapse_row (GTK_TREE_VIEW (treeview), arg1);
572 gtk_tree_view_expand_row (GTK_TREE_VIEW (treeview), arg1, FALSE);
579 expand_open_links (GtkTreeView *tree_view, GtkTreeModel *model, GtkTreeIter *parent)
584 if (gtk_tree_model_iter_children (model, &iter, parent)) {
586 gtk_tree_model_get (model, &iter,
587 EV_DOCUMENT_LINKS_COLUMN_EXPAND, &expand,
592 path = gtk_tree_model_get_path (model, &iter);
593 gtk_tree_view_expand_row (tree_view, path, FALSE);
594 gtk_tree_path_free (path);
597 expand_open_links (tree_view, model, &iter);
598 } while (gtk_tree_model_iter_next (model, &iter));
603 job_finished_callback (EvJobLinks *job,
604 EvSidebarLinks *sidebar_links)
606 EvSidebarLinksPrivate *priv;
607 GtkTreeSelection *selection;
609 priv = sidebar_links->priv;
611 priv->model = job->model;
612 g_object_notify (G_OBJECT (sidebar_links), "model");
614 gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), job->model);
616 g_object_unref (job);
619 expand_open_links (GTK_TREE_VIEW (priv->tree_view), priv->model, NULL);
621 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
622 gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
623 priv->selection_id = g_signal_connect (selection, "changed",
624 G_CALLBACK (selection_changed_callback),
626 priv->page_changed_id = g_signal_connect (priv->page_cache, "page-changed",
627 G_CALLBACK (update_page_callback),
629 priv->row_activated_id = g_signal_connect (G_OBJECT (priv->tree_view), "row-activated",
630 G_CALLBACK (row_activated_callback), sidebar_links);
631 update_page_callback (priv->page_cache,
632 ev_page_cache_get_current_page (priv->page_cache),
638 ev_sidebar_links_set_document (EvSidebarPage *sidebar_page,
639 EvDocument *document)
641 EvSidebarLinks *sidebar_links;
642 EvSidebarLinksPrivate *priv;
644 g_return_if_fail (EV_IS_SIDEBAR_PAGE (sidebar_page));
645 g_return_if_fail (EV_IS_DOCUMENT (document));
647 sidebar_links = EV_SIDEBAR_LINKS (sidebar_page);
649 priv = sidebar_links->priv;
651 if (priv->document) {
652 gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), NULL);
653 g_object_unref (priv->document);
656 priv->document = g_object_ref (document);
657 priv->page_cache = ev_page_cache_get (document);
660 g_signal_handlers_disconnect_by_func (priv->job,
661 job_finished_callback,
663 g_object_unref (priv->job);
666 priv->job = ev_job_links_new (document);
667 g_signal_connect (priv->job,
669 G_CALLBACK (job_finished_callback),
671 /* The priority doesn't matter for this job */
672 ev_job_queue_add_job (priv->job, EV_JOB_PRIORITY_LOW);
676 ev_sidebar_links_support_document (EvSidebarPage *sidebar_page,
677 EvDocument *document)
679 return (EV_IS_DOCUMENT_LINKS (document) &&
680 ev_document_links_has_document_links (EV_DOCUMENT_LINKS (document)));
684 ev_sidebar_links_get_label (EvSidebarPage *sidebar_page)
690 ev_sidebar_links_page_iface_init (EvSidebarPageIface *iface)
692 iface->support_document = ev_sidebar_links_support_document;
693 iface->set_document = ev_sidebar_links_set_document;
694 iface->get_label = ev_sidebar_links_get_label;