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;
55 static void links_page_num_func (GtkTreeViewColumn *tree_column,
56 GtkCellRenderer *cell,
57 GtkTreeModel *tree_model,
59 EvSidebarLinks *sidebar_links);
60 static void update_page_callback (EvPageCache *page_cache,
62 EvSidebarLinks *sidebar_links);
65 G_DEFINE_TYPE (EvSidebarLinks, ev_sidebar_links, GTK_TYPE_VBOX)
67 #define EV_SIDEBAR_LINKS_GET_PRIVATE(object) \
68 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_LINKS, EvSidebarLinksPrivate))
72 ev_sidebar_links_destroy (GtkObject *object)
74 EvSidebarLinks *ev_sidebar_links = (EvSidebarLinks *) object;
76 ev_sidebar_links_clear_document (ev_sidebar_links);
80 ev_sidebar_links_set_property (GObject *object,
85 EvSidebarLinks *ev_sidebar_links;
88 ev_sidebar_links = EV_SIDEBAR_LINKS (object);
93 model = ev_sidebar_links->priv->model;
94 ev_sidebar_links->priv->model = GTK_TREE_MODEL (g_value_dup_object (value));
96 g_object_unref (model);
99 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
105 ev_sidebar_links_get_property (GObject *object,
110 EvSidebarLinks *ev_sidebar_links;
112 ev_sidebar_links = EV_SIDEBAR_LINKS (object);
117 g_value_set_object (value, ev_sidebar_links->priv->model);
120 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
127 ev_sidebar_links_class_init (EvSidebarLinksClass *ev_sidebar_links_class)
129 GObjectClass *g_object_class;
130 GtkObjectClass *gtk_object_class;
132 g_object_class = G_OBJECT_CLASS (ev_sidebar_links_class);
133 gtk_object_class = GTK_OBJECT_CLASS (ev_sidebar_links_class);
135 g_object_class->set_property = ev_sidebar_links_set_property;
136 g_object_class->get_property = ev_sidebar_links_get_property;
138 gtk_object_class->destroy = ev_sidebar_links_destroy;
140 g_object_class_install_property (g_object_class,
142 g_param_spec_object ("model",
148 g_type_class_add_private (g_object_class, sizeof (EvSidebarLinksPrivate));
152 selection_changed_cb (GtkTreeSelection *selection,
153 EvSidebarLinks *ev_sidebar_links)
155 EvDocument *document;
159 g_return_if_fail (EV_IS_SIDEBAR_LINKS (ev_sidebar_links));
161 document = EV_DOCUMENT (ev_sidebar_links->priv->document);
162 g_return_if_fail (ev_sidebar_links->priv->document != NULL);
164 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
167 gtk_tree_model_get (model, &iter,
168 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
174 g_signal_handler_block (ev_sidebar_links->priv->page_cache,
175 ev_sidebar_links->priv->page_changed_id);
176 ev_page_cache_set_link (ev_sidebar_links->priv->page_cache, link);
177 g_signal_handler_unblock (ev_sidebar_links->priv->page_cache,
178 ev_sidebar_links->priv->page_changed_id);
182 static GtkTreeModel *
183 create_loading_model (void)
185 GtkTreeModel *retval;
189 /* Creates a fake model to indicate that we're loading */
190 retval = (GtkTreeModel *)gtk_list_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
194 gtk_list_store_append (GTK_LIST_STORE (retval), &iter);
195 markup = g_strdup_printf ("<span size=\"larger\" style=\"italic\">%s</span>", _("Loading..."));
196 gtk_list_store_set (GTK_LIST_STORE (retval), &iter,
197 EV_DOCUMENT_LINKS_COLUMN_MARKUP, markup,
198 EV_DOCUMENT_LINKS_COLUMN_LINK, NULL,
206 ev_sidebar_links_construct (EvSidebarLinks *ev_sidebar_links)
208 EvSidebarLinksPrivate *priv;
210 GtkTreeViewColumn *column;
211 GtkCellRenderer *renderer;
212 GtkTreeSelection *selection;
213 GtkTreeModel *loading_model;
215 priv = ev_sidebar_links->priv;
217 swindow = gtk_scrolled_window_new (NULL, NULL);
219 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
220 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
221 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow),
224 /* Create tree view */
225 loading_model = create_loading_model ();
226 priv->tree_view = gtk_tree_view_new_with_model (loading_model);
227 g_object_unref (loading_model);
229 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
230 gtk_tree_selection_set_mode (selection, GTK_SELECTION_NONE);
231 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
232 gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view);
234 gtk_box_pack_start (GTK_BOX (ev_sidebar_links), swindow, TRUE, TRUE, 0);
235 gtk_widget_show_all (GTK_WIDGET (ev_sidebar_links));
237 column = gtk_tree_view_column_new ();
238 gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
239 gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), column);
241 renderer = (GtkCellRenderer*)
242 g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
243 "ellipsize", PANGO_ELLIPSIZE_END,
245 gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, TRUE);
246 gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer,
247 "markup", EV_DOCUMENT_LINKS_COLUMN_MARKUP,
251 renderer = gtk_cell_renderer_text_new ();
252 gtk_tree_view_column_pack_end (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
253 gtk_tree_view_column_set_cell_data_func (GTK_TREE_VIEW_COLUMN (column), renderer,
254 (GtkTreeCellDataFunc) links_page_num_func,
255 ev_sidebar_links, NULL);
261 ev_sidebar_links_init (EvSidebarLinks *ev_sidebar_links)
263 ev_sidebar_links->priv = EV_SIDEBAR_LINKS_GET_PRIVATE (ev_sidebar_links);
265 ev_sidebar_links_construct (ev_sidebar_links);
269 links_page_num_func (GtkTreeViewColumn *tree_column,
270 GtkCellRenderer *cell,
271 GtkTreeModel *tree_model,
273 EvSidebarLinks *sidebar_links)
277 gtk_tree_model_get (tree_model, iter,
278 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
282 ev_link_get_link_type (link) == EV_LINK_TYPE_PAGE) {
286 page_label = ev_page_cache_get_page_label (sidebar_links->priv->page_cache, ev_link_get_page (link));
287 page_string = g_markup_printf_escaped ("<i>%s</i>", page_label);
290 "markup", page_string,
295 g_free (page_string);
303 /* Public Functions */
306 ev_sidebar_links_new (void)
308 GtkWidget *ev_sidebar_links;
310 ev_sidebar_links = g_object_new (EV_TYPE_SIDEBAR_LINKS, NULL);
312 return ev_sidebar_links;
316 ev_sidebar_links_clear_document (EvSidebarLinks *sidebar_links)
318 EvSidebarLinksPrivate *priv;
320 g_return_if_fail (EV_IS_SIDEBAR_LINKS (sidebar_links));
322 priv = sidebar_links->priv;
324 if (priv->document) {
325 g_object_unref (priv->document);
326 priv->document = NULL;
327 priv->page_cache = NULL;
330 gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), NULL);
334 update_page_callback_foreach (GtkTreeModel *model,
339 EvSidebarLinks *sidebar_links = (data);
342 gtk_tree_model_get (model, iter,
343 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
346 if (link && ev_link_get_link_type (link) == EV_LINK_TYPE_PAGE) {
349 current_page = ev_page_cache_get_current_page (sidebar_links->priv->page_cache);
350 if (ev_link_get_page (link) == current_page) {
351 GtkTreeSelection *selection;
353 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (sidebar_links->priv->tree_view));
355 gtk_tree_selection_select_path (selection, path);
365 update_page_callback (EvPageCache *page_cache,
367 EvSidebarLinks *sidebar_links)
369 GtkTreeSelection *selection;
370 /* We go through the tree linearly looking for the first page that
371 * matches. This is pretty inefficient. We can do something neat with
372 * a GtkTreeModelSort here to make it faster, if it turns out to be
376 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (sidebar_links->priv->tree_view));
378 g_signal_handler_block (selection, sidebar_links->priv->selection_id);
380 gtk_tree_selection_unselect_all (selection);
381 gtk_tree_model_foreach (sidebar_links->priv->model,
382 update_page_callback_foreach,
385 g_signal_handler_unblock (selection, sidebar_links->priv->selection_id);
389 job_finished_cb (EvJobLinks *job,
390 EvSidebarLinks *sidebar_links)
392 EvSidebarLinksPrivate *priv;
393 GtkTreeSelection *selection;
398 priv = sidebar_links->priv;
400 priv->model = g_object_ref (job->model);
401 g_object_notify (G_OBJECT (sidebar_links), "model");
403 gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), job->model);
404 g_object_unref (job);
406 /* Expand one level of the tree */
407 path = gtk_tree_path_new_first ();
408 for (result = gtk_tree_model_get_iter_first (priv->model, &iter);
410 result = gtk_tree_model_iter_next (priv->model, &iter)) {
411 gtk_tree_view_expand_row (GTK_TREE_VIEW (priv->tree_view), path, FALSE);
412 gtk_tree_path_next (path);
414 gtk_tree_path_free (path);
416 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
417 gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
418 priv->selection_id = g_signal_connect (selection, "changed",
419 G_CALLBACK (selection_changed_cb),
421 priv->page_changed_id = g_signal_connect (priv->page_cache, "page-changed",
422 G_CALLBACK (update_page_callback),
424 update_page_callback (priv->page_cache,
425 ev_page_cache_get_current_page (priv->page_cache),
431 ev_sidebar_links_set_document (EvSidebarLinks *sidebar_links,
432 EvDocument *document)
434 EvSidebarLinksPrivate *priv;
436 g_return_if_fail (EV_IS_SIDEBAR_LINKS (sidebar_links));
437 g_return_if_fail (EV_IS_DOCUMENT (document));
439 priv = sidebar_links->priv;
441 g_object_ref (document);
443 priv->document = document;
444 priv->page_cache = ev_document_get_page_cache (document);
446 priv->job = ev_job_links_new (document);
447 g_signal_connect (priv->job,
449 G_CALLBACK (job_finished_cb),
451 /* The priority doesn't matter for this job */
452 ev_job_queue_add_job (priv->job, EV_JOB_PRIORITY_LOW);