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.
29 #include <glib/gi18n.h>
32 #include "ev-document-links.h"
33 #include "ev-job-scheduler.h"
34 #include "ev-sidebar-links.h"
35 #include "ev-sidebar-page.h"
36 #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 update_page_callback (EvPageCache *page_cache,
65 EvSidebarLinks *sidebar_links);
66 static void row_activated_callback (GtkTreeView *treeview,
68 GtkTreeViewColumn *arg2,
70 static void job_finished_callback (EvJobLinks *job,
71 EvSidebarLinks *sidebar_links);
72 static void ev_sidebar_links_page_iface_init (EvSidebarPageIface *iface);
73 static void ev_sidebar_links_set_document (EvSidebarPage *sidebar_page,
74 EvDocument *document);
75 static gboolean ev_sidebar_links_support_document (EvSidebarPage *sidebar_page,
76 EvDocument *document);
77 static const gchar* ev_sidebar_links_get_label (EvSidebarPage *sidebar_page);
79 static guint signals[N_SIGNALS];
81 G_DEFINE_TYPE_EXTENDED (EvSidebarLinks,
85 G_IMPLEMENT_INTERFACE (EV_TYPE_SIDEBAR_PAGE,
86 ev_sidebar_links_page_iface_init))
89 #define EV_SIDEBAR_LINKS_GET_PRIVATE(object) \
90 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_LINKS, EvSidebarLinksPrivate))
93 ev_sidebar_links_set_property (GObject *object,
98 EvSidebarLinks *ev_sidebar_links;
101 ev_sidebar_links = EV_SIDEBAR_LINKS (object);
106 model = ev_sidebar_links->priv->model;
107 ev_sidebar_links->priv->model = GTK_TREE_MODEL (g_value_dup_object (value));
109 g_object_unref (model);
112 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
118 ev_sidebar_links_get_property (GObject *object,
123 EvSidebarLinks *ev_sidebar_links;
125 ev_sidebar_links = EV_SIDEBAR_LINKS (object);
130 g_value_set_object (value, ev_sidebar_links->priv->model);
133 g_value_set_object (value, ev_sidebar_links->priv->tree_view);
136 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
142 ev_sidebar_links_dispose (GObject *object)
144 EvSidebarLinks *sidebar = EV_SIDEBAR_LINKS (object);
146 if (sidebar->priv->job) {
147 g_signal_handlers_disconnect_by_func (sidebar->priv->job,
148 job_finished_callback, sidebar);
149 ev_job_cancel (sidebar->priv->job);
150 g_object_unref (sidebar->priv->job);
151 sidebar->priv->job = NULL;
154 if (sidebar->priv->model) {
155 g_object_unref (sidebar->priv->model);
156 sidebar->priv->model = NULL;
159 if (sidebar->priv->document) {
160 g_object_unref (sidebar->priv->document);
161 sidebar->priv->document = NULL;
162 sidebar->priv->page_cache = NULL;
165 G_OBJECT_CLASS (ev_sidebar_links_parent_class)->dispose (object);
169 ev_sidebar_links_map (GtkWidget *widget)
171 EvSidebarLinks *links;
173 links = EV_SIDEBAR_LINKS (widget);
175 GTK_WIDGET_CLASS (ev_sidebar_links_parent_class)->map (widget);
177 if (links->priv->model) {
178 update_page_callback (links->priv->page_cache,
179 ev_page_cache_get_current_page (links->priv->page_cache),
185 ev_sidebar_links_class_init (EvSidebarLinksClass *ev_sidebar_links_class)
187 GObjectClass *g_object_class;
188 GtkWidgetClass *widget_class;
190 g_object_class = G_OBJECT_CLASS (ev_sidebar_links_class);
191 widget_class = GTK_WIDGET_CLASS (ev_sidebar_links_class);
193 g_object_class->set_property = ev_sidebar_links_set_property;
194 g_object_class->get_property = ev_sidebar_links_get_property;
195 g_object_class->dispose = ev_sidebar_links_dispose;
197 widget_class->map = ev_sidebar_links_map;
199 signals[LINK_ACTIVATED] = g_signal_new ("link-activated",
200 G_TYPE_FROM_CLASS (g_object_class),
201 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
202 G_STRUCT_OFFSET (EvSidebarLinksClass, link_activated),
204 g_cclosure_marshal_VOID__OBJECT,
205 G_TYPE_NONE, 1, G_TYPE_OBJECT);
207 g_object_class_install_property (g_object_class,
209 g_param_spec_object ("model",
214 g_object_class_override_property (g_object_class,
218 g_type_class_add_private (g_object_class, sizeof (EvSidebarLinksPrivate));
222 selection_changed_callback (GtkTreeSelection *selection,
223 EvSidebarLinks *ev_sidebar_links)
225 EvDocument *document;
229 document = EV_DOCUMENT (ev_sidebar_links->priv->document);
230 g_return_if_fail (ev_sidebar_links->priv->document != NULL);
232 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
235 gtk_tree_model_get (model, &iter,
236 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
242 g_signal_handler_block (ev_sidebar_links->priv->page_cache,
243 ev_sidebar_links->priv->page_changed_id);
244 g_signal_emit (ev_sidebar_links, signals[LINK_ACTIVATED], 0, link);
245 g_signal_handler_unblock (ev_sidebar_links->priv->page_cache,
246 ev_sidebar_links->priv->page_changed_id);
248 g_object_unref (link);
252 static GtkTreeModel *
253 create_loading_model (void)
255 GtkTreeModel *retval;
259 /* Creates a fake model to indicate that we're loading */
260 retval = (GtkTreeModel *)gtk_list_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
266 gtk_list_store_append (GTK_LIST_STORE (retval), &iter);
267 markup = g_strdup_printf ("<span size=\"larger\" style=\"italic\">%s</span>", _("Loading..."));
268 gtk_list_store_set (GTK_LIST_STORE (retval), &iter,
269 EV_DOCUMENT_LINKS_COLUMN_MARKUP, markup,
270 EV_DOCUMENT_LINKS_COLUMN_EXPAND, FALSE,
271 EV_DOCUMENT_LINKS_COLUMN_LINK, NULL,
279 print_section_cb (GtkWidget *menuitem, EvSidebarLinks *sidebar)
282 GtkTreeSelection *selection;
286 selection = gtk_tree_view_get_selection
287 (GTK_TREE_VIEW (sidebar->priv->tree_view));
289 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
291 int first_page, last_page = -1;
293 gtk_tree_model_get (model, &iter,
294 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
300 first_page = ev_link_get_page (link);
301 if (first_page == -1) {
302 g_object_unref (link);
307 g_object_unref (link);
309 if (gtk_tree_model_iter_next (model, &iter)) {
310 gtk_tree_model_get (model, &iter,
311 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
315 last_page = ev_link_get_page (link);
316 g_object_unref (link);
319 last_page = ev_document_get_n_pages (sidebar->priv->document);
323 last_page = ev_document_get_n_pages (sidebar->priv->document);
325 window = gtk_widget_get_toplevel (GTK_WIDGET (sidebar));
326 if (EV_IS_WINDOW (window)) {
327 ev_window_print_range (EV_WINDOW (window), first_page, last_page);
333 build_popup_menu (EvSidebarLinks *sidebar)
338 menu = gtk_menu_new ();
339 item = gtk_image_menu_item_new_from_stock (GTK_STOCK_PRINT, NULL);
340 gtk_label_set_label (GTK_LABEL (GTK_BIN (item)->child), _("Print..."));
341 gtk_widget_show (item);
342 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
343 g_signal_connect (item, "activate",
344 G_CALLBACK (print_section_cb), sidebar);
346 return GTK_MENU (menu);
350 popup_menu_cb (GtkWidget *treeview, EvSidebarLinks *sidebar)
352 GtkMenu *menu = build_popup_menu (sidebar);
354 gtk_menu_popup (menu, NULL, NULL,
355 ev_gui_menu_position_tree_selection,
356 sidebar->priv->tree_view, 0,
357 gtk_get_current_event_time ());
358 gtk_menu_shell_select_first (GTK_MENU_SHELL (menu), FALSE);
362 button_press_cb (GtkWidget *treeview,
363 GdkEventButton *event,
364 EvSidebarLinks *sidebar)
366 GtkTreePath *path = NULL;
368 if (event->button == 3) {
369 if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (treeview),
374 gtk_tree_view_set_cursor (GTK_TREE_VIEW (treeview),
376 gtk_menu_popup (build_popup_menu (sidebar), NULL,
377 NULL, NULL, NULL, event->button,
378 gtk_get_current_event_time ());
379 gtk_tree_path_free (path);
390 ev_sidebar_links_construct (EvSidebarLinks *ev_sidebar_links)
392 EvSidebarLinksPrivate *priv;
394 GtkTreeViewColumn *column;
395 GtkCellRenderer *renderer;
396 GtkTreeSelection *selection;
397 GtkTreeModel *loading_model;
399 priv = ev_sidebar_links->priv;
401 swindow = gtk_scrolled_window_new (NULL, NULL);
403 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
404 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
405 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow),
408 /* Create tree view */
409 loading_model = create_loading_model ();
410 priv->tree_view = gtk_tree_view_new_with_model (loading_model);
411 g_object_unref (loading_model);
413 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
414 gtk_tree_selection_set_mode (selection, GTK_SELECTION_NONE);
415 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
416 gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view);
418 gtk_box_pack_start (GTK_BOX (ev_sidebar_links), swindow, TRUE, TRUE, 0);
419 gtk_widget_show_all (GTK_WIDGET (ev_sidebar_links));
421 column = gtk_tree_view_column_new ();
422 gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
423 gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), column);
425 renderer = (GtkCellRenderer*)
426 g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
427 "ellipsize", PANGO_ELLIPSIZE_END,
429 gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, TRUE);
430 gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer,
431 "markup", EV_DOCUMENT_LINKS_COLUMN_MARKUP,
435 renderer = gtk_cell_renderer_text_new ();
436 gtk_tree_view_column_pack_end (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
437 gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer,
438 "text", EV_DOCUMENT_LINKS_COLUMN_PAGE_LABEL,
440 g_object_set (G_OBJECT (renderer), "style", PANGO_STYLE_ITALIC, NULL);
442 g_signal_connect (priv->tree_view,
443 "button_press_event",
444 G_CALLBACK (button_press_cb),
446 g_signal_connect (priv->tree_view,
448 G_CALLBACK (popup_menu_cb),
453 ev_sidebar_links_init (EvSidebarLinks *ev_sidebar_links)
455 ev_sidebar_links->priv = EV_SIDEBAR_LINKS_GET_PRIVATE (ev_sidebar_links);
457 ev_sidebar_links_construct (ev_sidebar_links);
461 fill_page_labels (GtkTreeModel *tree_model,
464 EvSidebarLinks *sidebar_links)
470 gtk_tree_model_get (tree_model, iter,
471 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
477 page = ev_link_get_page (link);
482 page_label = ev_document_get_page_label (sidebar_links->priv->document,
484 gtk_tree_store_set (GTK_TREE_STORE (tree_model), iter,
485 EV_DOCUMENT_LINKS_COLUMN_PAGE_LABEL, page_label,
490 g_object_unref (link);
494 /* Public Functions */
497 ev_sidebar_links_new (void)
499 GtkWidget *ev_sidebar_links;
501 ev_sidebar_links = g_object_new (EV_TYPE_SIDEBAR_LINKS, NULL);
503 return ev_sidebar_links;
507 update_page_callback_foreach (GtkTreeModel *model,
512 EvSidebarLinks *sidebar_links = (data);
515 gtk_tree_model_get (model, iter,
516 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
523 dest_page = ev_link_get_page (link);
524 g_object_unref (link);
526 current_page = ev_page_cache_get_current_page (sidebar_links->priv->page_cache);
528 if (dest_page == current_page) {
529 gtk_tree_view_expand_to_path (GTK_TREE_VIEW (sidebar_links->priv->tree_view),
531 gtk_tree_view_set_cursor (GTK_TREE_VIEW (sidebar_links->priv->tree_view),
542 update_page_callback (EvPageCache *page_cache,
544 EvSidebarLinks *sidebar_links)
546 GtkTreeSelection *selection;
550 /* Widget is not currently visible */
551 if (!GTK_WIDGET_MAPPED (sidebar_links))
554 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (sidebar_links->priv->tree_view));
556 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
559 gtk_tree_model_get (model, &iter,
560 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
565 dest_page = ev_link_get_page (link);
566 g_object_unref (link);
568 if (dest_page == current_page)
573 /* We go through the tree linearly looking for the first page that
574 * matches. This is pretty inefficient. We can do something neat with
575 * a GtkTreeModelSort here to make it faster, if it turns out to be
578 g_signal_handler_block (selection, sidebar_links->priv->selection_id);
579 g_signal_handler_block (sidebar_links->priv->tree_view, sidebar_links->priv->row_activated_id);
581 gtk_tree_model_foreach (model,
582 update_page_callback_foreach,
585 g_signal_handler_unblock (selection, sidebar_links->priv->selection_id);
586 g_signal_handler_unblock (sidebar_links->priv->tree_view, sidebar_links->priv->row_activated_id);
590 row_activated_callback (GtkTreeView *treeview,
592 GtkTreeViewColumn *arg2,
595 if (gtk_tree_view_row_expanded (GTK_TREE_VIEW (treeview), arg1)) {
596 gtk_tree_view_collapse_row (GTK_TREE_VIEW (treeview), arg1);
598 gtk_tree_view_expand_row (GTK_TREE_VIEW (treeview), arg1, FALSE);
603 expand_open_links (GtkTreeView *tree_view, GtkTreeModel *model, GtkTreeIter *parent)
608 if (gtk_tree_model_iter_children (model, &iter, parent)) {
610 gtk_tree_model_get (model, &iter,
611 EV_DOCUMENT_LINKS_COLUMN_EXPAND, &expand,
616 path = gtk_tree_model_get_path (model, &iter);
617 gtk_tree_view_expand_row (tree_view, path, FALSE);
618 gtk_tree_path_free (path);
621 expand_open_links (tree_view, model, &iter);
622 } while (gtk_tree_model_iter_next (model, &iter));
627 job_finished_callback (EvJobLinks *job,
628 EvSidebarLinks *sidebar_links)
630 EvSidebarLinksPrivate *priv;
631 GtkTreeSelection *selection;
633 priv = sidebar_links->priv;
635 priv->model = job->model;
636 g_object_notify (G_OBJECT (sidebar_links), "model");
638 gtk_tree_model_foreach (priv->model, (GtkTreeModelForeachFunc)fill_page_labels, sidebar_links);
640 gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), job->model);
642 g_object_unref (job);
645 expand_open_links (GTK_TREE_VIEW (priv->tree_view), priv->model, NULL);
647 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
648 gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
650 if (priv->selection_id <= 0) {
652 g_signal_connect (selection, "changed",
653 G_CALLBACK (selection_changed_callback),
656 priv->page_changed_id = g_signal_connect (priv->page_cache, "page-changed",
657 G_CALLBACK (update_page_callback),
659 if (priv->row_activated_id <= 0) {
660 priv->row_activated_id =
661 g_signal_connect (priv->tree_view, "row-activated",
662 G_CALLBACK (row_activated_callback),
666 update_page_callback (priv->page_cache,
667 ev_page_cache_get_current_page (priv->page_cache),
672 ev_sidebar_links_set_document (EvSidebarPage *sidebar_page,
673 EvDocument *document)
675 EvSidebarLinks *sidebar_links;
676 EvSidebarLinksPrivate *priv;
678 g_return_if_fail (EV_IS_SIDEBAR_PAGE (sidebar_page));
679 g_return_if_fail (EV_IS_DOCUMENT (document));
681 sidebar_links = EV_SIDEBAR_LINKS (sidebar_page);
683 priv = sidebar_links->priv;
685 if (priv->document) {
686 gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), NULL);
687 g_object_unref (priv->document);
690 priv->document = g_object_ref (document);
691 priv->page_cache = ev_page_cache_get (document);
694 g_signal_handlers_disconnect_by_func (priv->job,
695 job_finished_callback,
697 g_object_unref (priv->job);
700 priv->job = ev_job_links_new (document);
701 g_signal_connect (priv->job,
703 G_CALLBACK (job_finished_callback),
705 /* The priority doesn't matter for this job */
706 ev_job_scheduler_push_job (priv->job, EV_JOB_PRIORITY_NONE);
710 ev_sidebar_links_support_document (EvSidebarPage *sidebar_page,
711 EvDocument *document)
713 return (EV_IS_DOCUMENT_LINKS (document) &&
714 ev_document_links_has_document_links (EV_DOCUMENT_LINKS (document)));
718 ev_sidebar_links_get_label (EvSidebarPage *sidebar_page)
724 ev_sidebar_links_page_iface_init (EvSidebarPageIface *iface)
726 iface->support_document = ev_sidebar_links_support_document;
727 iface->set_document = ev_sidebar_links_set_document;
728 iface->get_label = ev_sidebar_links_get_label;