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authorinfirit <[email protected]>2014-12-09 22:48:38 +0100
committerinfirit <[email protected]>2014-12-09 23:02:28 +0100
commit88ade34349d37acc1fedf4433a1ffd9010e5cf7d (patch)
tree45917bbbe7db8d67f4770eb306104eb7eeb036f0 /shell/ev-bookmarks.c
parent05c34fac905e8e10fb94e61373f2c33396651880 (diff)
downloadatril-88ade34349d37acc1fedf4433a1ffd9010e5cf7d.tar.bz2
atril-88ade34349d37acc1fedf4433a1ffd9010e5cf7d.tar.xz
shell: Add EvBookmarks to handle internal document bookmarks
Bookmarks are stored in the document metadata using GVariant Taken from evince commit: 7f0f254c6655bc301102eaaebabc1d98dade9912 From: Carlos Garcia Campos <[email protected]>
Diffstat (limited to 'shell/ev-bookmarks.c')
-rw-r--r--shell/ev-bookmarks.c285
1 files changed, 285 insertions, 0 deletions
diff --git a/shell/ev-bookmarks.c b/shell/ev-bookmarks.c
new file mode 100644
index 00000000..5072fcbe
--- /dev/null
+++ b/shell/ev-bookmarks.c
@@ -0,0 +1,285 @@
+/* ev-bookmarks.c
+ * this file is part of evince, a gnome document viewer
+ *
+ * Copyright (C) 2010 Carlos Garcia Campos <[email protected]>
+ *
+ * Evince is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Evince is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include "ev-bookmarks.h"
+
+enum {
+ PROP_0,
+ PROP_METADATA
+};
+
+enum {
+ CHANGED,
+ N_SIGNALS
+};
+
+struct _EvBookmarks {
+ GObject base;
+
+ EvMetadata *metadata;
+ GList *items;
+};
+
+struct _EvBookmarksClass {
+ GObjectClass base_class;
+
+ void (*changed) (EvBookmarks *bookmarks);
+};
+
+G_DEFINE_TYPE (EvBookmarks, ev_bookmarks, G_TYPE_OBJECT)
+
+static guint signals[N_SIGNALS];
+
+static gint
+ev_bookmark_compare (EvBookmark *a,
+ EvBookmark *b)
+{
+ if (a->page < b->page)
+ return -1;
+ if (a->page > b->page)
+ return 1;
+ return 0;
+}
+
+static void
+ev_bookmark_free (EvBookmark *bm)
+{
+ if (G_UNLIKELY(!bm))
+ return;
+
+ g_free (bm->title);
+ g_slice_free (EvBookmark, bm);
+}
+
+static void
+ev_bookmarks_finalize (GObject *object)
+{
+ EvBookmarks *bookmarks = EV_BOOKMARKS (object);
+
+ if (bookmarks->items) {
+ g_list_free_full (bookmarks->items, (GDestroyNotify)ev_bookmark_free);
+ bookmarks->items = NULL;
+ }
+
+ if (bookmarks->metadata) {
+ g_object_unref (bookmarks->metadata);
+ bookmarks->metadata = NULL;
+ }
+
+ G_OBJECT_CLASS (ev_bookmarks_parent_class)->finalize (object);
+}
+
+static void
+ev_bookmarks_init (EvBookmarks *bookmarks)
+{
+}
+
+static void
+ev_bookmarks_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ EvBookmarks *bookmarks = EV_BOOKMARKS (object);
+
+ switch (prop_id) {
+ case PROP_METADATA:
+ bookmarks->metadata = (EvMetadata *)g_value_dup_object (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ }
+}
+
+static void
+ev_bookmarks_constructed (GObject *object)
+{
+ EvBookmarks *bookmarks = EV_BOOKMARKS (object);
+ gchar *bm_list_str;
+ GVariant *bm_list;
+ GVariantIter iter;
+ GVariant *child;
+ GError *error = NULL;
+
+ if (!ev_metadata_get_string (bookmarks->metadata, "bookmarks", &bm_list_str))
+ return;
+
+ if (!bm_list_str || bm_list_str[0] == '\0')
+ return;
+
+ bm_list = g_variant_parse ((const GVariantType *)"a(us)",
+ bm_list_str, NULL, NULL,
+ &error);
+ if (!bm_list) {
+ g_warning ("Error getting bookmarks: %s\n", error->message);
+ g_error_free (error);
+
+ return;
+ }
+
+ g_variant_iter_init (&iter, bm_list);
+ while ((child = g_variant_iter_next_value (&iter))) {
+ EvBookmark *bm = g_slice_new (EvBookmark);
+
+ g_variant_get (child, "(us)", &bm->page, &bm->title);
+ if (bm->title && strlen (bm->title) > 0)
+ bookmarks->items = g_list_prepend (bookmarks->items, bm);
+ g_variant_unref (child);
+ }
+ g_variant_unref (bm_list);
+
+ bookmarks->items = g_list_reverse (bookmarks->items);
+}
+
+static void
+ev_bookmarks_class_init (EvBookmarksClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+ gobject_class->set_property = ev_bookmarks_set_property;
+ gobject_class->finalize = ev_bookmarks_finalize;
+ gobject_class->constructed = ev_bookmarks_constructed;
+
+ g_object_class_install_property (gobject_class,
+ PROP_METADATA,
+ g_param_spec_object ("metadata",
+ "Metadata",
+ "The document metadata",
+ EV_TYPE_METADATA,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE));
+ /* Signals */
+ signals[CHANGED] =
+ g_signal_new ("changed",
+ EV_TYPE_BOOKMARKS,
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EvBookmarksClass, changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+}
+
+EvBookmarks *
+ev_bookmarks_new (EvMetadata *metadata)
+{
+ g_return_val_if_fail (EV_IS_METADATA (metadata), NULL);
+
+ return EV_BOOKMARKS (g_object_new (EV_TYPE_BOOKMARKS,
+ "metadata", metadata, NULL));
+}
+
+static void
+ev_bookmarks_save (EvBookmarks *bookmarks)
+{
+ GList *l;
+ GVariantBuilder builder;
+ GVariant *bm_list;
+ gchar *bm_list_str;
+
+ if (!bookmarks->items) {
+ ev_metadata_set_string (bookmarks->metadata, "bookmarks", "");
+ return;
+ }
+
+ g_variant_builder_init (&builder, G_VARIANT_TYPE_ARRAY);
+ for (l = bookmarks->items; l; l = g_list_next (l)) {
+ EvBookmark *bm = (EvBookmark *)l->data;
+
+ g_variant_builder_add (&builder, "(u&s)", bm->page, bm->title);
+ }
+ bm_list = g_variant_builder_end (&builder);
+
+ bm_list_str = g_variant_print (bm_list, FALSE);
+ g_variant_unref (bm_list);
+ ev_metadata_set_string (bookmarks->metadata, "bookmarks", bm_list_str);
+ g_free (bm_list_str);
+}
+
+GList *
+ev_bookmarks_get_bookmarks (EvBookmarks *bookmarks)
+{
+ g_return_val_if_fail (EV_IS_BOOKMARKS (bookmarks), NULL);
+
+ return g_list_copy (bookmarks->items);
+}
+
+void
+ev_bookmarks_add (EvBookmarks *bookmarks,
+ EvBookmark *bookmark)
+{
+ EvBookmark *bm;
+
+ g_return_if_fail (EV_IS_BOOKMARKS (bookmarks));
+ g_return_if_fail (bookmark->title != NULL);
+
+ if (g_list_find_custom (bookmarks->items, bookmark, (GCompareFunc)ev_bookmark_compare))
+ return;
+
+ bm = g_slice_new (EvBookmark);
+ *bm = *bookmark;
+ bookmarks->items = g_list_append (bookmarks->items, bm);
+ g_signal_emit (bookmarks, signals[CHANGED], 0);
+ ev_bookmarks_save (bookmarks);
+}
+
+void
+ev_bookmarks_delete (EvBookmarks *bookmarks,
+ EvBookmark *bookmark)
+{
+ GList *bm_link;
+
+ g_return_if_fail (EV_IS_BOOKMARKS (bookmarks));
+
+ bm_link = g_list_find_custom (bookmarks->items, bookmark, (GCompareFunc)ev_bookmark_compare);
+ if (!bm_link)
+ return;
+
+ bookmarks->items = g_list_delete_link (bookmarks->items, bm_link);
+ g_signal_emit (bookmarks, signals[CHANGED], 0);
+ ev_bookmarks_save (bookmarks);
+}
+
+void
+ev_bookmarks_update (EvBookmarks *bookmarks,
+ EvBookmark *bookmark)
+{
+ GList *bm_link;
+ EvBookmark *bm;
+
+ g_return_if_fail (EV_IS_BOOKMARKS (bookmarks));
+ g_return_if_fail (bookmark->title != NULL);
+
+ bm_link = g_list_find_custom (bookmarks->items, bookmark, (GCompareFunc)ev_bookmark_compare);
+ if (!bm_link)
+ return;
+
+ bm = (EvBookmark *)bm_link->data;
+
+ if (strcmp (bookmark->title, bm->title) == 0)
+ return;
+
+ g_free (bm->title);
+ *bm = *bookmark;
+ g_signal_emit (bookmarks, signals[CHANGED], 0);
+ ev_bookmarks_save (bookmarks);
+}
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