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-links.h"
32 #include "ev-job-queue.h"
33 #include "ev-document-links.h"
34 #include "ev-window.h"
36 struct _EvSidebarLinksPrivate {
39 /* Keep these ids around for blocking */
41 guint page_changed_id;
46 EvPageCache *page_cache;
50 static void links_page_num_func (GtkTreeViewColumn *tree_column,
51 GtkCellRenderer *cell,
52 GtkTreeModel *tree_model,
54 EvSidebarLinks *sidebar_links);
55 static void update_page_callback (EvPageCache *page_cache,
57 EvSidebarLinks *sidebar_links);
60 G_DEFINE_TYPE (EvSidebarLinks, ev_sidebar_links, GTK_TYPE_VBOX)
62 #define EV_SIDEBAR_LINKS_GET_PRIVATE(object) \
63 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_LINKS, EvSidebarLinksPrivate))
67 ev_sidebar_links_destroy (GtkObject *object)
69 EvSidebarLinks *ev_sidebar_links = (EvSidebarLinks *) object;
71 ev_sidebar_links_clear_document (ev_sidebar_links);
75 ev_sidebar_links_class_init (EvSidebarLinksClass *ev_sidebar_links_class)
77 GObjectClass *g_object_class;
78 GtkObjectClass *gtk_object_class;
80 g_object_class = G_OBJECT_CLASS (ev_sidebar_links_class);
81 gtk_object_class = GTK_OBJECT_CLASS (ev_sidebar_links_class);
83 gtk_object_class->destroy = ev_sidebar_links_destroy;
85 g_type_class_add_private (g_object_class, sizeof (EvSidebarLinksPrivate));
89 selection_changed_cb (GtkTreeSelection *selection,
90 EvSidebarLinks *ev_sidebar_links)
96 g_return_if_fail (EV_IS_SIDEBAR_LINKS (ev_sidebar_links));
98 document = EV_DOCUMENT (ev_sidebar_links->priv->document);
99 g_return_if_fail (ev_sidebar_links->priv->document != NULL);
101 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
104 gtk_tree_model_get (model, &iter,
105 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
111 g_signal_handler_block (ev_sidebar_links->priv->page_cache,
112 ev_sidebar_links->priv->page_changed_id);
113 ev_page_cache_set_link (ev_sidebar_links->priv->page_cache, link);
114 g_signal_handler_unblock (ev_sidebar_links->priv->page_cache,
115 ev_sidebar_links->priv->page_changed_id);
119 static GtkTreeModel *
120 create_loading_model (void)
122 GtkTreeModel *retval;
126 /* Creates a fake model to indicate that we're loading */
127 retval = (GtkTreeModel *)gtk_list_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
132 gtk_list_store_append (GTK_LIST_STORE (retval), &iter);
133 markup = g_strdup_printf ("<span size=\"larger\" style=\"italic\">%s</span>", _("Loading..."));
134 gtk_list_store_set (GTK_LIST_STORE (retval), &iter,
135 EV_DOCUMENT_LINKS_COLUMN_MARKUP, markup,
143 ev_sidebar_links_construct (EvSidebarLinks *ev_sidebar_links)
145 EvSidebarLinksPrivate *priv;
147 GtkTreeViewColumn *column;
148 GtkCellRenderer *renderer;
149 GtkTreeSelection *selection;
150 GtkTreeModel *loading_model;
152 priv = ev_sidebar_links->priv;
154 swindow = gtk_scrolled_window_new (NULL, NULL);
156 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
157 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
158 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow),
161 /* Create tree view */
162 loading_model = create_loading_model ();
163 priv->tree_view = gtk_tree_view_new_with_model (loading_model);
164 g_object_unref (loading_model);
166 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
167 gtk_tree_selection_set_mode (selection, GTK_SELECTION_NONE);
168 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
169 gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view);
171 gtk_box_pack_start (GTK_BOX (ev_sidebar_links), swindow, TRUE, TRUE, 0);
172 gtk_widget_show_all (GTK_WIDGET (ev_sidebar_links));
174 column = gtk_tree_view_column_new ();
175 gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
176 gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), column);
178 renderer = (GtkCellRenderer*)
179 g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
180 "ellipsize", PANGO_ELLIPSIZE_END,
182 gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, TRUE);
183 gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer,
184 "markup", EV_DOCUMENT_LINKS_COLUMN_MARKUP,
188 renderer = gtk_cell_renderer_text_new ();
189 gtk_tree_view_column_pack_end (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
190 gtk_tree_view_column_set_cell_data_func (GTK_TREE_VIEW_COLUMN (column), renderer,
191 (GtkTreeCellDataFunc) links_page_num_func,
192 ev_sidebar_links, NULL);
198 ev_sidebar_links_init (EvSidebarLinks *ev_sidebar_links)
200 ev_sidebar_links->priv = EV_SIDEBAR_LINKS_GET_PRIVATE (ev_sidebar_links);
202 ev_sidebar_links_construct (ev_sidebar_links);
206 links_page_num_func (GtkTreeViewColumn *tree_column,
207 GtkCellRenderer *cell,
208 GtkTreeModel *tree_model,
210 EvSidebarLinks *sidebar_links)
214 gtk_tree_model_get (tree_model, iter,
215 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
219 ev_link_get_link_type (link) == EV_LINK_TYPE_PAGE) {
223 page_label = ev_page_cache_get_page_label (sidebar_links->priv->page_cache, ev_link_get_page (link));
224 page_string = g_markup_printf_escaped ("<i>%s</i>", page_label);
227 "markup", page_string,
232 g_free (page_string);
240 /* Public Functions */
243 ev_sidebar_links_new (void)
245 GtkWidget *ev_sidebar_links;
247 ev_sidebar_links = g_object_new (EV_TYPE_SIDEBAR_LINKS, NULL);
249 return ev_sidebar_links;
253 ev_sidebar_links_clear_document (EvSidebarLinks *sidebar_links)
255 EvSidebarLinksPrivate *priv;
257 g_return_if_fail (EV_IS_SIDEBAR_LINKS (sidebar_links));
259 priv = sidebar_links->priv;
261 if (priv->document) {
262 g_object_unref (priv->document);
263 priv->document = NULL;
264 priv->page_cache = NULL;
267 gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), NULL);
271 update_page_callback_foreach (GtkTreeModel *model,
276 EvSidebarLinks *sidebar_links = (data);
279 gtk_tree_model_get (model, iter,
280 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
283 if (link && ev_link_get_link_type (link) == EV_LINK_TYPE_PAGE) {
286 current_page = ev_page_cache_get_current_page (sidebar_links->priv->page_cache);
287 if (ev_link_get_page (link) == current_page) {
288 GtkTreeSelection *selection;
290 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (sidebar_links->priv->tree_view));
292 gtk_tree_selection_select_path (selection, path);
302 update_page_callback (EvPageCache *page_cache,
304 EvSidebarLinks *sidebar_links)
306 GtkTreeSelection *selection;
307 /* We go through the tree linearly looking for the first page that
308 * matches. This is pretty inefficient. We can do something neat with
309 * a GtkTreeModelSort here to make it faster, if it turns out to be
313 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (sidebar_links->priv->tree_view));
315 g_signal_handler_block (selection, sidebar_links->priv->selection_id);
317 gtk_tree_selection_unselect_all (selection);
318 gtk_tree_model_foreach (sidebar_links->priv->model,
319 update_page_callback_foreach,
322 g_signal_handler_unblock (selection, sidebar_links->priv->selection_id);
326 job_finished_cb (EvJobLinks *job,
327 EvSidebarLinks *sidebar_links)
329 EvSidebarLinksPrivate *priv;
330 GtkTreeSelection *selection;
335 priv = sidebar_links->priv;
337 priv->model = g_object_ref (job->model);
338 gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), job->model);
339 g_object_unref (job);
341 /* Expand one level of the tree */
342 path = gtk_tree_path_new_first ();
343 for (result = gtk_tree_model_get_iter_first (priv->model, &iter);
345 result = gtk_tree_model_iter_next (priv->model, &iter)) {
346 gtk_tree_view_expand_row (GTK_TREE_VIEW (priv->tree_view), path, FALSE);
347 gtk_tree_path_next (path);
349 gtk_tree_path_free (path);
351 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
352 gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
353 priv->selection_id = g_signal_connect (selection, "changed",
354 G_CALLBACK (selection_changed_cb),
356 priv->page_changed_id = g_signal_connect (priv->page_cache, "page-changed",
357 G_CALLBACK (update_page_callback),
359 update_page_callback (priv->page_cache,
360 ev_page_cache_get_current_page (priv->page_cache),
366 ev_sidebar_links_set_document (EvSidebarLinks *sidebar_links,
367 EvDocument *document)
369 EvSidebarLinksPrivate *priv;
371 g_return_if_fail (EV_IS_SIDEBAR_LINKS (sidebar_links));
372 g_return_if_fail (EV_IS_DOCUMENT (document));
374 priv = sidebar_links->priv;
376 g_object_ref (document);
378 priv->document = document;
379 priv->page_cache = ev_document_get_page_cache (document);
381 priv->job = ev_job_links_new (document);
382 g_signal_connect (priv->job,
384 G_CALLBACK (job_finished_cb),
386 /* The priority doesn't matter for this job */
387 ev_job_queue_add_job (priv->job, EV_JOB_PRIORITY_LOW);