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-rw-r--r--src/eom-clipboard-handler.c324
1 files changed, 324 insertions, 0 deletions
diff --git a/src/eom-clipboard-handler.c b/src/eom-clipboard-handler.c
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+++ b/src/eom-clipboard-handler.c
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+/*
+ * eom-clipboard-handler.c
+ * This file is part of eom
+ *
+ * Author: Felix Riemann <[email protected]>
+ *
+ * Copyright (C) 2010 GNOME Foundation
+ *
+ * This program 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.
+ *
+ * This program 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gtk/gtk.h>
+#include "eom-clipboard-handler.h"
+
+enum {
+ PROP_0,
+ PROP_PIXBUF,
+ PROP_URI
+};
+
+enum {
+ TARGET_PIXBUF,
+ TARGET_TEXT,
+ TARGET_URI
+};
+
+struct _EomClipboardHandlerPrivate {
+ GdkPixbuf *pixbuf;
+ gchar *uri;
+};
+
+#define EOM_CLIPBOARD_HANDLER_GET_PRIVATE(object) \
+ (G_TYPE_INSTANCE_GET_PRIVATE ((object), EOM_TYPE_CLIPBOARD_HANDLER, EomClipboardHandlerPrivate))
+
+G_DEFINE_TYPE(EomClipboardHandler, eom_clipboard_handler, G_TYPE_INITIALLY_UNOWNED)
+
+static GdkPixbuf*
+eom_clipboard_handler_get_pixbuf (EomClipboardHandler *handler)
+{
+ g_return_val_if_fail (EOM_IS_CLIPBOARD_HANDLER (handler), NULL);
+
+ return handler->priv->pixbuf;
+}
+
+static const gchar *
+eom_clipboard_handler_get_uri (EomClipboardHandler *handler)
+{
+ g_return_val_if_fail (EOM_IS_CLIPBOARD_HANDLER (handler), NULL);
+
+ return handler->priv->uri;
+}
+
+static void
+eom_clipboard_handler_set_pixbuf (EomClipboardHandler *handler, GdkPixbuf *pixbuf)
+{
+ g_return_if_fail (EOM_IS_CLIPBOARD_HANDLER (handler));
+ g_return_if_fail (pixbuf == NULL || GDK_IS_PIXBUF (pixbuf));
+
+ if (handler->priv->pixbuf == pixbuf)
+ return;
+
+ if (handler->priv->pixbuf)
+ g_object_unref (handler->priv->pixbuf);
+
+ handler->priv->pixbuf = g_object_ref (pixbuf);
+
+ g_object_notify (G_OBJECT (handler), "pixbuf");
+}
+
+static void
+eom_clipboard_handler_set_uri (EomClipboardHandler *handler, const gchar *uri)
+{
+ g_return_if_fail (EOM_IS_CLIPBOARD_HANDLER (handler));
+
+ if (handler->priv->uri != NULL)
+ g_free (handler->priv->uri);
+
+ handler->priv->uri = g_strdup (uri);
+ g_object_notify (G_OBJECT (handler), "uri");
+}
+
+static void
+eom_clipboard_handler_get_property (GObject *object, guint property_id,
+ GValue *value, GParamSpec *pspec)
+{
+ EomClipboardHandler *handler;
+
+ g_return_if_fail (EOM_IS_CLIPBOARD_HANDLER (object));
+
+ handler = EOM_CLIPBOARD_HANDLER (object);
+
+ switch (property_id) {
+ case PROP_PIXBUF:
+ g_value_set_object (value,
+ eom_clipboard_handler_get_pixbuf (handler));
+ break;
+ case PROP_URI:
+ g_value_set_string (value,
+ eom_clipboard_handler_get_uri (handler));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ }
+}
+
+static void
+eom_clipboard_handler_set_property (GObject *object, guint property_id,
+ const GValue *value, GParamSpec *pspec)
+{
+ EomClipboardHandler *handler;
+
+ g_return_if_fail (EOM_IS_CLIPBOARD_HANDLER (object));
+
+ handler = EOM_CLIPBOARD_HANDLER (object);
+
+ switch (property_id) {
+ case PROP_PIXBUF:
+ {
+ GdkPixbuf *pixbuf;
+
+ pixbuf = g_value_get_object (value);
+ eom_clipboard_handler_set_pixbuf (handler, pixbuf);
+ break;
+ }
+ case PROP_URI:
+ {
+ const gchar *uri;
+
+ uri = g_value_get_string (value);
+ eom_clipboard_handler_set_uri (handler, uri);
+ break;
+ }
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ }
+
+}
+
+static void
+eom_clipboard_handler_dispose (GObject *obj)
+{
+ EomClipboardHandlerPrivate *priv;
+
+ g_return_if_fail (EOM_IS_CLIPBOARD_HANDLER (obj));
+
+ priv = EOM_CLIPBOARD_HANDLER (obj)->priv;
+
+ if (priv->pixbuf != NULL) {
+ g_object_unref (priv->pixbuf);
+ priv->pixbuf = NULL;
+ }
+ if (priv->uri) {
+ g_free (priv->uri);
+ priv->uri = NULL;
+ }
+
+ G_OBJECT_CLASS (eom_clipboard_handler_parent_class)->dispose (obj);
+}
+
+static void
+eom_clipboard_handler_init (EomClipboardHandler *handler)
+{
+ handler->priv = EOM_CLIPBOARD_HANDLER_GET_PRIVATE (handler);
+}
+
+static void
+eom_clipboard_handler_class_init (EomClipboardHandlerClass *klass)
+{
+ GObjectClass *g_obj_class = G_OBJECT_CLASS (klass);
+
+ g_type_class_add_private (klass, sizeof (EomClipboardHandlerPrivate));
+
+ g_obj_class->get_property = eom_clipboard_handler_get_property;
+ g_obj_class->set_property = eom_clipboard_handler_set_property;
+ g_obj_class->dispose = eom_clipboard_handler_dispose;
+
+ g_object_class_install_property (
+ g_obj_class, PROP_PIXBUF,
+ g_param_spec_object ("pixbuf", NULL, NULL, GDK_TYPE_PIXBUF,
+ G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (
+ g_obj_class, PROP_URI,
+ g_param_spec_string ("uri", NULL, NULL, NULL,
+ G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_STATIC_STRINGS));
+}
+
+EomClipboardHandler*
+eom_clipboard_handler_new (EomImage *img)
+{
+ GObject *obj;
+ GFile *file;
+ GdkPixbuf *pbuf;
+ gchar *uri;
+
+ g_object_ref (img);
+ pbuf = eom_image_get_pixbuf (img);
+ file = eom_image_get_file (img);
+ uri = g_file_get_uri (file);
+ obj = g_object_new (EOM_TYPE_CLIPBOARD_HANDLER,
+ "pixbuf", pbuf,
+ "uri", uri,
+ NULL);
+ g_free (uri);
+ g_object_unref (file);
+ g_object_unref (pbuf);
+ g_object_unref (img);
+
+ return EOM_CLIPBOARD_HANDLER (obj);
+
+}
+
+static void
+eom_clipboard_handler_get_func (GtkClipboard *clipboard,
+ GtkSelectionData *selection,
+ guint info, gpointer owner)
+{
+ EomClipboardHandler *handler;
+
+ g_return_if_fail (EOM_IS_CLIPBOARD_HANDLER (owner));
+
+ handler = EOM_CLIPBOARD_HANDLER (owner);
+
+ switch (info) {
+ case TARGET_PIXBUF:
+ {
+ GdkPixbuf *pixbuf = eom_clipboard_handler_get_pixbuf (handler);
+ g_object_ref (pixbuf);
+ gtk_selection_data_set_pixbuf (selection, pixbuf);
+ g_object_unref (pixbuf);
+ break;
+ }
+ case TARGET_TEXT:
+ {
+ gtk_selection_data_set_text (selection,
+ eom_clipboard_handler_get_uri (handler),
+ -1);
+ break;
+ }
+ case TARGET_URI:
+ {
+ gchar *uris[2];
+ uris[0] = g_strdup (eom_clipboard_handler_get_uri (handler));
+ uris[1] = NULL;
+
+ gtk_selection_data_set_uris (selection, uris);
+ g_free (uris[0]);
+ break;
+ }
+ default:
+ g_return_if_reached ();
+ }
+
+}
+
+static void
+eom_clipboard_handler_clear_func (GtkClipboard *clipboard, gpointer owner)
+{
+ g_return_if_fail (EOM_IS_CLIPBOARD_HANDLER (owner));
+
+ g_object_unref (G_OBJECT (owner));
+}
+
+void
+eom_clipboard_handler_copy_to_clipboard (EomClipboardHandler *handler,
+ GtkClipboard *clipboard)
+{
+ GtkTargetList *tlist;
+ GtkTargetEntry *targets;
+ gint n_targets = 0;
+ gboolean set = FALSE;
+
+ tlist = gtk_target_list_new (NULL, 0);
+
+ if (handler->priv->pixbuf != NULL)
+ gtk_target_list_add_image_targets (tlist, TARGET_PIXBUF, TRUE);
+
+ if (handler->priv->uri != NULL) {
+ gtk_target_list_add_text_targets (tlist, TARGET_TEXT);
+ gtk_target_list_add_uri_targets (tlist, TARGET_URI);
+ }
+
+ targets = gtk_target_table_new_from_list (tlist, &n_targets);
+
+ // We need to take ownership here if nobody else did
+ g_object_ref_sink (handler);
+
+ if (n_targets > 0) {
+ set = gtk_clipboard_set_with_owner (clipboard,
+ targets, n_targets,
+ eom_clipboard_handler_get_func,
+ eom_clipboard_handler_clear_func,
+ G_OBJECT (handler));
+
+ }
+
+ if (!set) {
+ gtk_clipboard_clear (clipboard);
+ g_object_unref (handler);
+ }
+
+ gtk_target_table_free (targets, n_targets);
+ gtk_target_list_unref (tlist);
+}