~larsu/indicator-messages/dont-use-deprecated-function

/*

An indicator to show information that is in messaging applications

that the user is using.

Copyright 2012 Canonical Ltd.

Authors:

    Lars Uebernickel <lars.uebernickel@canonical.com>

    Ted Gould <ted@canonical.com>

This program is free software: you can redistribute it and/or modify it 

under the terms of the GNU General Public License version 3, as published 

by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but 

WITHOUT ANY WARRANTY; without even the implied warranties of 

MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.

*/

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <gdk/gdk.h>

#include <glib/gi18n.h>

#include <gio/gdesktopappinfo.h>

#include <gio/gio.h>

#include <libindicator/indicator-desktop-shortcuts.h>

#include "app-section.h"

#include "dbus-data.h"

#include "gmenuutils.h"

#include "gactionmuxer.h"

struct _AppSectionPrivate

{

	GDesktopAppInfo * appinfo;

	GFileMonitor *desktop_file_monitor;

	IndicatorDesktopShortcuts * ids;

	GMenu *menu;

	GMenuModel *source_menu;

	GSimpleActionGroup *static_shortcuts;

	GActionGroup *source_actions;

	GActionMuxer *muxer;

	gboolean draws_attention;

	gboolean uses_chat_status;

	gchar *chat_status;

	guint name_watch_id;

};

enum {

	PROP_0,

	PROP_APPINFO,

	PROP_ACTIONS,

	PROP_DRAWS_ATTENTION,

	PROP_USES_CHAT_STATUS,

	PROP_CHAT_STATUS,

	NUM_PROPERTIES

};

static GParamSpec *properties[NUM_PROPERTIES];

static guint destroy_signal;

/* Prototypes */

static void app_section_class_init   (AppSectionClass *klass);

static void app_section_init         (AppSection *self);

static void app_section_get_property (GObject    *object,

				      guint       property_id,

				      GValue     *value,

				      GParamSpec *pspec);

static void app_section_set_property (GObject      *object,

				      guint         property_id,

				      const GValue *value,

				      GParamSpec   *pspec);

static void app_section_dispose      (GObject *object);

static void app_section_finalize     (GObject *object);

static void activate_cb              (GSimpleAction *action,

				      GVariant *param,

				      gpointer userdata);

static void launch_action_change_state (GSimpleAction *action,

					GVariant      *value,

					gpointer       user_data);

static void app_section_set_app_info (AppSection *self,

				      GDesktopAppInfo *appinfo);

static gboolean any_action_draws_attention	(GActionGroup *group,

						 const gchar *ignored_action);

static void	action_added			(GActionGroup *group,

						 const gchar *action_name,

						 gpointer user_data);

static void	action_state_changed		(GActionGroup *group,

						 const gchar *action_name,

						 GVariant *value,

						 gpointer user_data);

static void	action_removed			(GActionGroup *group,

						 const gchar *action_name,

						 gpointer user_data);

static gboolean	action_draws_attention		(GVariant *state);

static void	desktop_file_changed_cb		(GFileMonitor      *monitor,

						 GFile             *file,

						 GFile             *other_file,

						 GFileMonitorEvent  event,

						 gpointer           user_data);

/* GObject Boilerplate */

G_DEFINE_TYPE (AppSection, app_section, G_TYPE_OBJECT);

static void

app_section_class_init (AppSectionClass *klass)

{

	GObjectClass *object_class = G_OBJECT_CLASS (klass);

	g_type_class_add_private (klass, sizeof (AppSectionPrivate));

	object_class->get_property = app_section_get_property;

	object_class->set_property = app_section_set_property;

	object_class->dispose = app_section_dispose;

	object_class->finalize = app_section_finalize;

	properties[PROP_APPINFO] = g_param_spec_object ("app-info",

							"AppInfo",

							"The GAppInfo for the app that this menu represents",

							G_TYPE_APP_INFO,

							G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);

	properties[PROP_ACTIONS] = g_param_spec_object ("actions",

							"Actions",

							"The actions exported by this application",

							G_TYPE_ACTION_GROUP,

							G_PARAM_READABLE);

	properties[PROP_DRAWS_ATTENTION] = g_param_spec_boolean ("draws-attention",

								 "Draws attention",

								 "Whether the section currently draws attention",

								 FALSE,

								 G_PARAM_READABLE);

	properties[PROP_USES_CHAT_STATUS] = g_param_spec_boolean ("uses-chat-status",

								  "Uses chat status",

								  "Whether the section uses the global chat status",

								  FALSE,

								  G_PARAM_READABLE);

	properties[PROP_CHAT_STATUS] = g_param_spec_string ("chat-status",

							    "Chat status",

							    "Current chat status of the application",

							    NULL,

							    G_PARAM_READWRITE |

							    G_PARAM_STATIC_STRINGS);

	g_object_class_install_properties (object_class, NUM_PROPERTIES, properties);

	destroy_signal = g_signal_new ("destroy",

				       APP_SECTION_TYPE,

				       G_SIGNAL_RUN_FIRST,

				       0,

				       NULL, NULL,

				       g_cclosure_marshal_VOID__VOID,

				       G_TYPE_NONE, 0);

}

static void

app_section_init (AppSection *self)

{

	AppSectionPrivate *priv;

	self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,

						  APP_SECTION_TYPE,

						  AppSectionPrivate);

	priv = self->priv;

	priv->appinfo = NULL;

	priv->menu = g_menu_new ();

	priv->static_shortcuts = g_simple_action_group_new ();

	priv->muxer = g_action_muxer_new ();

	g_action_muxer_insert (priv->muxer, NULL, G_ACTION_GROUP (priv->static_shortcuts));

	priv->draws_attention = FALSE;

	return;

}

static void

app_section_get_property (GObject    *object,

			  guint       property_id,

			  GValue     *value,

			  GParamSpec *pspec)

{

	AppSection *self = APP_SECTION (object);

	switch (property_id)

	{

	case PROP_APPINFO:

		g_value_set_object (value, app_section_get_app_info (self));

		break;

	case PROP_DRAWS_ATTENTION:

		g_value_set_boolean (value, app_section_get_draws_attention (self));

		break;

	case PROP_USES_CHAT_STATUS:

		g_value_set_boolean (value, app_section_get_uses_chat_status (self));

		break;

	case PROP_CHAT_STATUS:

		g_value_set_string (value, app_section_get_status (self));

		break;

	default:

		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);

	}

}

static void

app_section_set_property (GObject      *object,

			  guint         property_id,

			  const GValue *value,

			  GParamSpec   *pspec)

{

	AppSection *self = APP_SECTION (object);

	switch (property_id)

	{

	case PROP_APPINFO:

		app_section_set_app_info (self, g_value_get_object (value));

		break;

	case PROP_CHAT_STATUS:

		app_section_set_status (self, g_value_get_string (value));

		break;

	default:

		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);

	}

}

static void

app_section_dispose (GObject *object)

{

	AppSection * self = APP_SECTION(object);

	AppSectionPrivate * priv = self->priv;

	if (priv->desktop_file_monitor) {

		g_signal_handlers_disconnect_by_func (priv->desktop_file_monitor, desktop_file_changed_cb, self);

		g_clear_object (&priv->desktop_file_monitor);

	}

	g_clear_object (&priv->menu);

	g_clear_object (&priv->static_shortcuts);

	if (priv->name_watch_id) {

		g_bus_unwatch_name (priv->name_watch_id);

		priv->name_watch_id = 0;

	}

	if (priv->source_actions) {

		g_action_muxer_remove  (priv->muxer, "source");

		g_object_disconnect (priv->source_actions,

				     "any_signal::action-added", action_added, self,

				     "any_signal::action-state-changed", action_state_changed, self,

				     "any_signal::action-removed", action_removed, self,

				     NULL);

		g_clear_object (&priv->source_actions);

	}

	g_clear_object (&priv->muxer);

	g_clear_object (&priv->source_menu);

	g_clear_object (&priv->ids);

	g_clear_object (&priv->appinfo);

	G_OBJECT_CLASS (app_section_parent_class)->dispose (object);

}

static void

app_section_finalize (GObject *object)

{

	AppSection * self = APP_SECTION(object);

	g_free (self->priv->chat_status);

	G_OBJECT_CLASS (app_section_parent_class)->dispose (object);

}

static GAppLaunchContext *

get_launch_context (guint32 timestamp)

{

	GdkDisplay *display = gdk_display_get_default();

	GdkAppLaunchContext *launch_context = gdk_display_get_app_launch_context (display);

	gdk_app_launch_context_set_timestamp (launch_context, timestamp);

	return G_APP_LAUNCH_CONTEXT (launch_context);

}

/* Respond to one of the shortcuts getting clicked on. */

static void

nick_activate_cb (GSimpleAction *action,

		  GVariant *param,

		  gpointer userdata)

{

	const gchar * nick = g_action_get_name (G_ACTION (action));

	AppSection * mi = APP_SECTION (userdata);

	AppSectionPrivate * priv = mi->priv;

	g_return_if_fail(priv->ids != NULL);

	GAppLaunchContext *context = get_launch_context (g_variant_get_uint32 (param));

	if (!indicator_desktop_shortcuts_nick_exec_with_context(priv->ids, nick, context)) {

		g_warning("Unable to execute nick '%s' for desktop file '%s'",

			  nick, g_desktop_app_info_get_filename (priv->appinfo));

	}

	g_object_unref (context);

}

static void

keyfile_loaded (GObject *source_object,

		GAsyncResult *result,

		gpointer user_data)

{

	AppSection *self = user_data;

	gchar *contents;

	gsize length;

	GKeyFile *keyfile;

	GError *error = NULL;

	if (!g_file_load_contents_finish (G_FILE (source_object), result,

					 &contents, &length, NULL, &error)) {

		g_warning ("could not read key file: %s", error->message);

		g_error_free (error);

		return;

	}

	keyfile = g_key_file_new ();

	if (!g_key_file_load_from_data (keyfile, contents, length, 0, &error)) {

		g_warning ("could not read key file: %s", error->message);

		g_error_free (error);

		goto out;

	}

	self->priv->uses_chat_status = g_key_file_get_boolean (keyfile,

							       G_KEY_FILE_DESKTOP_GROUP,

							       "X-MessagingMenu-UsesChatSection",

							       &error);

	g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_USES_CHAT_STATUS]);

	if (error) {

		if (error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND) {

			g_warning ("could not read X-MessagingMenu-UsesChatSection: %s",

				   error->message);

		}

		g_error_free (error);

		goto out;

	}

out:

	g_key_file_free (keyfile);

	g_free (contents);

}

static void

g_menu_clear (GMenu *menu)

{

	gint n_items = g_menu_model_get_n_items (G_MENU_MODEL (menu));

	while (n_items--)

		g_menu_remove (menu, 0);

}

static void

g_simple_action_group_clear (GSimpleActionGroup *group)

{

	gchar **actions;

	gchar **it;

	actions = g_action_group_list_actions (G_ACTION_GROUP (group));

	for (it = actions; *it; it++)

		g_simple_action_group_remove (group, *it);

	g_strfreev (actions);

}

static void

app_section_update_menu (AppSection *self)

{

	AppSectionPrivate *priv = self->priv;

	GSimpleAction *launch;

	GFile *keyfile;

	GMenuItem *item;

	gchar *iconstr;

	gboolean is_running;

	g_menu_clear (priv->menu);

	g_simple_action_group_clear (priv->static_shortcuts);

	is_running = priv->name_watch_id > 0;

	launch = g_simple_action_new_stateful ("launch", G_VARIANT_TYPE_UINT32, g_variant_new_boolean (is_running));

	g_signal_connect (launch, "activate", G_CALLBACK (activate_cb), self);

	g_signal_connect (launch, "change-state", G_CALLBACK (launch_action_change_state), self);

	g_simple_action_group_insert (priv->static_shortcuts, G_ACTION (launch));

	item = g_menu_item_new (g_app_info_get_name (G_APP_INFO (priv->appinfo)), "launch");

	g_menu_item_set_attribute (item, "x-canonical-type", "s", "ImAppMenuItem");

	iconstr = g_icon_to_string (g_app_info_get_icon (G_APP_INFO (priv->appinfo)));

	g_menu_item_set_attribute (item, "x-canonical-icon", "s", iconstr);

	g_free (iconstr);

	g_menu_append_item (priv->menu, item);

	g_object_unref (item);

	/* Start to build static shortcuts */

	priv->ids = indicator_desktop_shortcuts_new(g_desktop_app_info_get_filename (priv->appinfo), "Messaging Menu");

	const gchar ** nicks = indicator_desktop_shortcuts_get_nicks(priv->ids);

	gint i;

	for (i = 0; nicks[i] != NULL; i++) {

		gchar *name;

		GSimpleAction *action;

		GMenuItem *item;

		name = indicator_desktop_shortcuts_nick_get_name(priv->ids, nicks[i]);

		action = g_simple_action_new (nicks[i], G_VARIANT_TYPE_UINT32);

		g_signal_connect(action, "activate", G_CALLBACK (nick_activate_cb), self);

		g_simple_action_group_insert (priv->static_shortcuts, G_ACTION (action));

		g_object_unref (action);

		item = g_menu_item_new (name, nicks[i]);

		g_menu_item_set_attribute (item, "x-canonical-type", "s", "IdoMenuItem");

		g_menu_item_set_attribute (item, "x-canonical-icon", "s", ""); /* empty to get indentation */

		g_menu_append_item (priv->menu, item);

		g_object_unref (item);

		g_free(name);

	}

	keyfile = g_file_new_for_path (g_desktop_app_info_get_filename (priv->appinfo));

	g_file_load_contents_async (keyfile, NULL, keyfile_loaded, self);

	g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ACTIONS]);

	g_object_unref (keyfile);

	g_object_unref (launch);

}

static void

desktop_file_changed_cb (GFileMonitor      *monitor,

			 GFile             *file,

			 GFile             *other_file,

			 GFileMonitorEvent  event,

			 gpointer           user_data)

{

	AppSection *self = user_data;

	if (event == G_FILE_MONITOR_EVENT_CHANGED) {

		app_section_update_menu (self);

	}

	else if (event == G_FILE_MONITOR_EVENT_DELETED ||

		 event == G_FILE_MONITOR_EVENT_UNMOUNTED) {

		g_signal_emit (self, destroy_signal, 0);

	}

}

static void

app_section_set_app_info (AppSection *self,

			  GDesktopAppInfo *appinfo)

{

	AppSectionPrivate *priv = self->priv;

	GFile *desktop_file;

	GError *error = NULL;

	g_return_if_fail (priv->appinfo == NULL);

	g_return_if_fail (priv->desktop_file_monitor == NULL);

	if (appinfo == NULL) {

		g_warning ("appinfo must not be NULL");

		return;

	}

	priv->appinfo = g_object_ref (appinfo);

	desktop_file = g_file_new_for_path (g_desktop_app_info_get_filename (appinfo));

	priv->desktop_file_monitor = g_file_monitor (desktop_file, G_FILE_MONITOR_SEND_MOVED, NULL, &error);

	if (priv->desktop_file_monitor == NULL) {

		g_warning ("unable to watch desktop file: %s", error->message);

		g_error_free (error);

	}

	g_signal_connect (priv->desktop_file_monitor, "changed",

			  G_CALLBACK (desktop_file_changed_cb), self);

	g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_APPINFO]);

	app_section_update_menu (self);

	g_object_unref (desktop_file);

}

AppSection *

app_section_new (GDesktopAppInfo *appinfo)

{

	return g_object_new (APP_SECTION_TYPE,

			     "app-info", appinfo,

			     NULL);

}

static void

activate_cb (GSimpleAction *action,

	     GVariant *param,

	     gpointer userdata)

{

	AppSection * mi = APP_SECTION (userdata);

	AppSectionPrivate * priv = mi->priv;

	GError *error = NULL;

	GAppLaunchContext *launch_context = get_launch_context (g_variant_get_uint32 (param));

	if (!g_app_info_launch (G_APP_INFO (priv->appinfo), NULL, launch_context, &error)) {

		g_warning("Unable to execute application for desktop file '%s': %s",

			  g_desktop_app_info_get_filename (priv->appinfo),

			  error->message);

		g_error_free (error);

	}

	g_object_unref (launch_context);

}

static void

launch_action_change_state (GSimpleAction *action,

			    GVariant      *value,

			    gpointer       user_data)

{

	g_simple_action_set_state (action, value);

}

const gchar *

app_section_get_desktop (AppSection * self)

{

	AppSectionPrivate * priv = self->priv;

	if (priv->appinfo)

		return g_desktop_app_info_get_filename (priv->appinfo);

	else

		return NULL;

}

GActionGroup *

app_section_get_actions (AppSection *self)

{

	AppSectionPrivate * priv = self->priv;

	return G_ACTION_GROUP (priv->muxer);

}

GMenuModel *

app_section_get_menu (AppSection *self)

{

	AppSectionPrivate * priv = self->priv;

	return G_MENU_MODEL (priv->menu);

}

GAppInfo *

app_section_get_app_info (AppSection *self)

{

	AppSectionPrivate * priv = self->priv;

	return G_APP_INFO (priv->appinfo);

}

gboolean

app_section_get_draws_attention (AppSection *self)

{

	AppSectionPrivate * priv = self->priv;

	return priv->draws_attention;

}

void

app_section_clear_draws_attention (AppSection *self)

{

	AppSectionPrivate * priv = self->priv;

	gchar **action_names;

	gchar **it;

	if (priv->source_actions == NULL)

		return;

	action_names = g_action_group_list_actions (priv->source_actions);

	for (it = action_names; *it; it++) {

		GVariant *state;

		state = g_action_group_get_action_state (priv->source_actions, *it);

		if (!state)

			continue;

		/* clear draws-attention while preserving other state */

		if (action_draws_attention (state)) {

			guint32 count;

			gint64 time;

			const gchar *str;

			GVariant *new_state;

			g_variant_get (state, "(ux&sb)", &count, &time, &str, NULL);

			new_state = g_variant_new ("(uxsb)", count, time, str, FALSE);

			g_action_group_change_action_state (priv->source_actions, *it, new_state);

		}

		g_variant_unref (state);

	}

	g_strfreev (action_names);

}

static void

application_vanished (GDBusConnection *bus,

		      const gchar *name,

		      gpointer user_data)

{

	AppSection *self = user_data;

	app_section_unset_object_path (self);

}

/*

 * app_section_set_object_path:

 * @self: an #AppSection

 * @bus: a #GDBusConnection

 * @bus_name: the bus name of the application

 * @object_path: the object path on which the app exports its actions and menus

 *

 * Sets the D-Bus object path exported by an instance of the application

 * associated with @self.  Actions and menus exported on that path will be

 * shown in the section.

 */

void

app_section_set_object_path (AppSection *self,

			     GDBusConnection *bus,

			     const gchar *bus_name,

			     const gchar *object_path)

{

	AppSectionPrivate *priv = self->priv;

	GMenuItem *item;

	g_object_freeze_notify (G_OBJECT (self));

	app_section_unset_object_path (self);

	priv->source_actions = G_ACTION_GROUP (g_dbus_action_group_get (bus, bus_name, object_path));

	g_action_muxer_insert (priv->muxer, "source", priv->source_actions);

	priv->draws_attention = any_action_draws_attention (priv->source_actions, NULL);

	g_object_connect (priv->source_actions,

			  "signal::action-added", action_added, self,

			  "signal::action-state-changed", action_state_changed, self,

			  "signal::action-removed", action_removed, self,

			  NULL);

	priv->source_menu = G_MENU_MODEL (g_dbus_menu_model_get (bus, bus_name, object_path));

	item = g_menu_item_new_section (NULL, priv->source_menu);

	g_menu_item_set_attribute (item, "action-namespace", "s", "source");

	g_menu_append_item (priv->menu, item);

	g_object_unref (item);

	priv->name_watch_id = g_bus_watch_name_on_connection (bus, bus_name, 0,

							      NULL, application_vanished,

							      self, NULL);

	g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ACTIONS]);

	g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_DRAWS_ATTENTION]);

	g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_USES_CHAT_STATUS]);

	g_object_thaw_notify (G_OBJECT (self));

	g_action_group_change_action_state (G_ACTION_GROUP (priv->static_shortcuts),

					    "launch", g_variant_new_boolean (TRUE));

}

/*

 * app_section_unset_object_path: