Bug #567879 - Add View >> Gallery Option In Email Composer

1 files changed, 419 insertions, 0 deletions

diff --git a/widgets/misc/e-picture-gallery.c b/widgets/misc/e-picture-gallery.c
new file mode 100644
index 0000000000..163a160ff8
--- /dev/null
+++ b/widgets/misc/e-picture-gallery.c
@@ -0,0 +1,419 @@
+/*
+ * e-picture-gallery.c
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#include "e-util/e-icon-factory.h"
+
+#include "e-picture-gallery.h"
+
+#define E_PICTURE_GALLERY_GET_PRIVATE(obj) \
+	(G_TYPE_INSTANCE_GET_PRIVATE \
+	((obj), E_TYPE_PICTURE_GALLERY, EPictureGalleryPrivate))
+
+struct _EPictureGalleryPrivate {
+	gboolean initialized;
+	gchar *path;
+	GFileMonitor *monitor;
+};
+
+enum {
+	PROP_0,
+	PROP_PATH
+};
+
+enum {
+	COL_PIXBUF = 0,
+	COL_URI,
+	COL_FILENAME_TEXT
+};
+
+G_DEFINE_TYPE (EPictureGallery, e_picture_gallery, GTK_TYPE_ICON_VIEW)
+
+static gboolean
+update_file_iter (GtkListStore *list_store, GtkTreeIter *iter, GFile *file, gboolean force_thumbnail_update)
+{
+	GFileInfo *file_info;
+	gchar *uri;
+	gboolean res = FALSE;
+
+	g_return_val_if_fail (list_store != NULL, FALSE);
+	g_return_val_if_fail (iter != NULL, FALSE);
+	g_return_val_if_fail (file != NULL, FALSE);
+
+	uri = g_file_get_uri (file);
+
+	file_info = g_file_query_info (file,
+		G_FILE_ATTRIBUTE_THUMBNAIL_PATH ","
+		G_FILE_ATTRIBUTE_THUMBNAILING_FAILED ","
+		G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME ","
+		G_FILE_ATTRIBUTE_STANDARD_SIZE,
+		G_FILE_QUERY_INFO_NONE,
+		NULL,
+		NULL);
+
+	if (file_info != NULL) {
+		const gchar *existing_thumb = g_file_info_get_attribute_byte_string (file_info, G_FILE_ATTRIBUTE_THUMBNAIL_PATH);
+		gchar *new_thumb = NULL;
+
+		if (!existing_thumb || force_thumbnail_update) {
+			gchar *filename;
+
+			filename = g_file_get_path (file);
+			if (filename) {
+				new_thumb = e_icon_factory_create_thumbnail (filename);
+				if (new_thumb)
+					existing_thumb = new_thumb;
+				g_free (filename);
+			}
+		}
+
+		if (existing_thumb && !g_file_info_get_attribute_boolean (file_info, G_FILE_ATTRIBUTE_THUMBNAILING_FAILED)) {
+			GdkPixbuf* pixbuf;
+
+			pixbuf = gdk_pixbuf_new_from_file (existing_thumb, NULL);
+
+			if (pixbuf) {
+				const gchar *filename;
+				gchar *filename_text = NULL;
+				guint64 filesize;
+
+				filename = g_file_info_get_attribute_string (file_info, G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME);
+				if (filename) {
+					filesize = g_file_info_get_attribute_uint64 (file_info, G_FILE_ATTRIBUTE_STANDARD_SIZE);
+					if (filesize) {
+						gchar *tmp = g_format_size_for_display ((goffset) filesize);
+						filename_text = g_strdup_printf ("%s (%s)", filename, tmp);
+						g_free (tmp);
+					}
+
+					res = TRUE;
+					gtk_list_store_set (list_store, iter,
+						COL_PIXBUF, pixbuf,
+						COL_URI, uri,
+						COL_FILENAME_TEXT, filename_text ? filename_text : filename,
+						-1);
+				}
+
+				g_object_unref (pixbuf);
+				g_free (filename_text);
+			}
+		}
+
+		g_free (new_thumb);
+	}
+
+	g_free (uri);
+
+	return res;
+}
+
+static void
+add_file (GtkListStore *list_store, GFile *file)
+{
+	GtkTreeIter iter;
+
+	g_return_if_fail (list_store != NULL);
+	g_return_if_fail (file != NULL);
+
+	gtk_list_store_append (list_store, &iter);
+	if (!update_file_iter (list_store, &iter, file, FALSE))
+		gtk_list_store_remove (list_store, &iter);
+}
+
+static gboolean
+find_file_uri (GtkListStore *list_store, const gchar *uri, GtkTreeIter *iter)
+{
+	GtkTreeModel *model;
+
+	g_return_val_if_fail (list_store != NULL, FALSE);
+	g_return_val_if_fail (uri != NULL, FALSE);
+	g_return_val_if_fail (iter != NULL, FALSE);
+
+	model = GTK_TREE_MODEL (list_store);
+	g_return_val_if_fail (model != NULL, FALSE);
+
+	if (!gtk_tree_model_get_iter_first (model, iter))
+		return FALSE;
+
+	do {
+		gchar *iter_uri = NULL;
+
+		gtk_tree_model_get (model, iter,
+			COL_URI, &iter_uri,
+			-1);
+
+		if (iter_uri && g_ascii_strcasecmp (uri, iter_uri) == 0) {
+			g_free (iter_uri);
+			return TRUE;
+		}
+
+		g_free (iter_uri);
+	} while (gtk_tree_model_iter_next (model, iter));
+
+	return FALSE;
+}
+
+static void
+picture_gallery_dir_changed_cb (GFileMonitor *monitor, GFile *file, GFile *other_file, GFileMonitorEvent event_type, EPictureGallery *gallery)
+{
+	gchar *uri;
+	GtkListStore *list_store;
+	GtkTreeIter iter;
+
+	g_return_if_fail (gallery != NULL);
+	g_return_if_fail (gallery->priv != NULL);
+	g_return_if_fail (file != NULL);
+
+	list_store = GTK_LIST_STORE (gtk_icon_view_get_model (GTK_ICON_VIEW (gallery)));
+	g_return_if_fail (list_store != NULL);
+
+	uri = g_file_get_uri (file);
+	if (!uri)
+		return;
+
+	switch (event_type) {
+	case G_FILE_MONITOR_EVENT_CREATED:
+		if (find_file_uri (list_store, uri, &iter)) {
+			if (!update_file_iter (list_store, &iter, file, TRUE))
+				gtk_list_store_remove (list_store, &iter);
+		} else {
+			add_file (list_store, file);
+		}
+		break;
+	case G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT:
+		if (find_file_uri (list_store, uri, &iter)) {
+			if (!update_file_iter (list_store, &iter, file, TRUE))
+				gtk_list_store_remove (list_store, &iter);
+		}
+		break;
+	case G_FILE_MONITOR_EVENT_DELETED:
+		if (find_file_uri (list_store, uri, &iter))
+			gtk_list_store_remove (list_store, &iter);
+		break;
+	default:
+		break;
+	}
+
+	g_free (uri);
+}
+
+static gboolean
+picture_gallery_start_loading_cb (EPictureGallery *gallery)
+{
+	GtkIconView *icon_view;
+	GtkListStore *list_store;
+	GDir *dir;
+	const gchar *dirname;
+
+	icon_view = GTK_ICON_VIEW (gallery);
+	list_store = GTK_LIST_STORE (gtk_icon_view_get_model (icon_view));
+	g_return_val_if_fail (list_store != NULL, FALSE);
+
+	dirname = e_picture_gallery_get_path (gallery);
+	if (!dirname)
+		return FALSE;
+
+	dir = g_dir_open (dirname, 0, NULL);
+	if (dir) {
+		GFile *file;
+		const gchar *basename;
+
+		while ((basename = g_dir_read_name (dir)) != NULL) {
+			gchar *filename;
+
+			filename = g_build_filename (dirname, basename, NULL);
+			file = g_file_new_for_path (filename);
+
+			add_file (list_store, file);
+
+			g_free (filename);
+			g_object_unref (file);
+		}
+
+		g_dir_close (dir);
+
+		file = g_file_new_for_path (dirname);
+		gallery->priv->monitor = g_file_monitor_directory (file, G_FILE_MONITOR_NONE, NULL, NULL);
+		g_object_unref (file);
+
+		if (gallery->priv->monitor)
+			g_signal_connect (gallery->priv->monitor, "changed", G_CALLBACK (picture_gallery_dir_changed_cb), gallery);
+	}
+
+	g_object_unref (icon_view);
+
+	return FALSE;
+}
+
+const gchar *
+e_picture_gallery_get_path (EPictureGallery *gallery)
+{
+	g_return_val_if_fail (gallery != NULL, NULL);
+	g_return_val_if_fail (E_IS_PICTURE_GALLERY (gallery), NULL);
+	g_return_val_if_fail (gallery->priv != NULL, NULL);
+
+	return gallery->priv->path;
+}
+
+static void
+picture_gallery_set_path (EPictureGallery *gallery, const gchar *path)
+{
+	g_return_if_fail (gallery != NULL);
+	g_return_if_fail (E_IS_PICTURE_GALLERY (gallery));
+	g_return_if_fail (gallery->priv != NULL);
+
+	g_free (gallery->priv->path);
+
+	if (!path || !*path || !g_file_test (path, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))
+		gallery->priv->path = g_strdup (g_get_user_special_dir (G_USER_DIRECTORY_PICTURES));
+	else
+		gallery->priv->path = g_strdup (path);
+}
+
+static void
+picture_gallery_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
+{
+	switch (property_id) {
+	case PROP_PATH:
+		g_value_set_string (value, e_picture_gallery_get_path (E_PICTURE_GALLERY (object)));
+		return;
+	}
+
+	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+}
+
+static void
+picture_gallery_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
+{
+	switch (property_id) {
+	case PROP_PATH:
+		picture_gallery_set_path (E_PICTURE_GALLERY (object), g_value_get_string (value));
+		return;
+	}
+
+	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+}
+
+static void
+visible_cb (EPictureGallery *gallery)
+{
+	g_return_if_fail (gallery != NULL);
+	g_return_if_fail (gallery->priv != NULL);
+
+	if (!gallery->priv->initialized && gtk_widget_get_visible (GTK_WIDGET (gallery))) {
+		gallery->priv->initialized = TRUE;
+
+		g_idle_add ((GSourceFunc) picture_gallery_start_loading_cb, gallery);
+	}
+}
+
+static void
+picture_gallery_constructed (GObject *object)
+{
+	if (G_OBJECT_CLASS (e_picture_gallery_parent_class)->constructed)
+		G_OBJECT_CLASS (e_picture_gallery_parent_class)->constructed (object);
+
+	g_signal_connect (object, "notify::visible", G_CALLBACK (visible_cb), NULL);
+}
+
+static void
+picture_gallery_dispose (GObject *object)
+{
+	EPictureGallery *gallery;
+
+	gallery = E_PICTURE_GALLERY (object);
+
+	g_return_if_fail (gallery != NULL);
+	g_return_if_fail (gallery->priv != NULL);
+
+	if (gallery->priv->monitor) {
+		g_object_unref (gallery->priv->monitor);
+		gallery->priv->monitor = NULL;
+	}
+
+	if (G_OBJECT_CLASS (e_picture_gallery_parent_class)->dispose)
+		G_OBJECT_CLASS (e_picture_gallery_parent_class)->dispose (object);
+}
+
+static void
+e_picture_gallery_class_init (EPictureGalleryClass *class)
+{
+	GObjectClass *object_class;
+
+	g_type_class_add_private (class, sizeof (EPictureGalleryPrivate));
+
+	object_class = G_OBJECT_CLASS (class);
+	object_class->get_property = picture_gallery_get_property;
+	object_class->set_property = picture_gallery_set_property;
+	object_class->constructed = picture_gallery_constructed;
+	object_class->dispose = picture_gallery_dispose;
+
+	g_object_class_install_property (
+		object_class,
+		PROP_PATH,
+		g_param_spec_string (
+			"path",
+			"Gallery path",
+			NULL,
+			NULL,
+			G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
+}
+
+static void
+e_picture_gallery_init (EPictureGallery *gallery)
+{
+	GtkIconView *icon_view;
+	GtkListStore *list_store;
+	GtkTargetEntry *targets;
+	GtkTargetList *list;
+	gint n_targets;
+
+	gallery->priv = E_PICTURE_GALLERY_GET_PRIVATE (gallery);
+	gallery->priv->initialized = FALSE;
+	gallery->priv->monitor = NULL;
+	picture_gallery_set_path (gallery, NULL);
+
+	icon_view = GTK_ICON_VIEW (gallery);
+
+	list_store = gtk_list_store_new (3, GDK_TYPE_PIXBUF, G_TYPE_STRING, G_TYPE_STRING);
+	gtk_icon_view_set_model (icon_view, GTK_TREE_MODEL (list_store));
+	g_object_unref (list_store);
+
+	gtk_icon_view_set_pixbuf_column (icon_view, COL_PIXBUF);
+	gtk_icon_view_set_text_column (icon_view, COL_FILENAME_TEXT);
+	gtk_icon_view_set_tooltip_column (icon_view, -1);
+
+	list = gtk_target_list_new (NULL, 0);
+	gtk_target_list_add_uri_targets (list, 0);
+	targets = gtk_target_table_new_from_list (list, &n_targets);
+
+	gtk_icon_view_enable_model_drag_source (
+		icon_view, GDK_BUTTON1_MASK,
+		targets, n_targets, GDK_ACTION_COPY);
+
+	gtk_target_table_free (targets, n_targets);
+	gtk_target_list_unref (list);
+}
+
+GtkWidget *
+e_picture_gallery_new (const gchar *path)
+{
+	return g_object_new (E_TYPE_PICTURE_GALLERY, "path", path, NULL);
+}