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GAppLaunchContext: make it possible ot get the effective startup id

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gnome-session needs to know the startup id that was given to
a started app; this was not available via GAppLaunchContext.
This commit adds a ::launched signal to get this information.
At the same time, turn the launch_failed vfunc into a signal
as well.

https://bugzilla.gnome.org/show_bug.cgi?id=688497
This commit is contained in:
Matthias Clasen 2012-11-16 18:24:21 -05:00
parent 7b0c93554b
commit bace1822d7
3 changed files with 66 additions and 7 deletions
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55
gio/gappinfo.c
View File

@ -782,6 +782,14 @@ g_app_info_delete (GAppInfo *appinfo)
}
enum {
LAUNCH_FAILED,
LAUNCHED,
LAST_SIGNAL
};
guint signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE (GAppLaunchContext, g_app_launch_context, G_TYPE_OBJECT);
struct _GAppLaunchContextPrivate {
@ -820,6 +828,46 @@ g_app_launch_context_class_init (GAppLaunchContextClass *klass)
g_type_class_add_private (klass, sizeof (GAppLaunchContextPrivate));
object_class->finalize = g_app_launch_context_finalize;
/*
* GAppLaunchContext::launch-failed:
* @context: the object emitting the signal
* @startup_notify_id: the startup notification id for the failed launch
*
* The ::launch-failed signal is emitted when a #GAppInfo launch
* fails. The startup notification id is provided, so that the launcher
* can cancel the startup notification.
*
* Since: 2.36
*/
signals[LAUNCH_FAILED] = g_signal_new ("launch-failed",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GAppLaunchContextClass, launch_failed),
NULL, NULL, NULL,
G_TYPE_NONE, 1, G_TYPE_STRING);
/*
* GAppLaunchContext::launched:
* @context: the object emitting the signal
* @info: the #GAppInfo that was just launched
* @platform_data: additional platform-specific data for this launch
*
* The ::launched signal is emitted when a #GAppInfo is successfully
* launched. The @platform_data is an GVariant dictionary mapping
* strings to variants (ie a{sv}), which contains additional,
* platform-specific data about this launch. On UNIX, at least the
* "pid" and "startup-notification-id" keys will be present.
*
* Since: 2.36
*/
signals[LAUNCHED] = g_signal_new ("launched",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GAppLaunchContextClass, launched),
NULL, NULL, NULL,
G_TYPE_NONE, 2,
G_TYPE_APP_INFO, G_TYPE_VARIANT);
}
static void
@ -974,13 +1022,8 @@ void
g_app_launch_context_launch_failed (GAppLaunchContext *context,
const char *startup_notify_id)
{
GAppLaunchContextClass *class;
g_return_if_fail (G_IS_APP_LAUNCH_CONTEXT (context));
g_return_if_fail (startup_notify_id != NULL);
class = G_APP_LAUNCH_CONTEXT_GET_CLASS (context);
if (class->launch_failed != NULL)
class->launch_failed (context, startup_notify_id);
g_signal_emit (context, signals[LAUNCH_FAILED], 0, startup_notify_id);
}

4
gio/gappinfo.h
View File

@ -226,13 +226,15 @@ struct _GAppLaunchContextClass
GList *files);
void (* launch_failed) (GAppLaunchContext *context,
const char *startup_notify_id);
void (* launched) (GAppLaunchContext *context,
GAppInfo *info,
GVariant *platform_data);
/* Padding for future expansion */
void (*_g_reserved1) (void);
void (*_g_reserved2) (void);
void (*_g_reserved3) (void);
void (*_g_reserved4) (void);
void (*_g_reserved5) (void);
};
GType g_app_launch_context_get_type (void) G_GNUC_CONST;

14
gio/gdesktopappinfo.c
View File

@ -1358,6 +1358,20 @@ _g_desktop_app_info_launch_uris_internal (GAppInfo *appinfo,
if (pid_callback != NULL)
pid_callback (info, pid, pid_callback_data);
if (launch_context != NULL)
{
GVariantBuilder builder;
GVariant *platform_data;
g_variant_builder_init (&builder, G_VARIANT_TYPE_ARRAY);
g_variant_builder_add (&builder, "{sv}", "pid", g_variant_new_int32 (pid));
if (sn_id)
g_variant_builder_add (&builder, "{sv}", "startup-notification-id", g_variant_new_string (sn_id));
platform_data = g_variant_ref_sink (g_variant_builder_end (&builder));
g_signal_emit_by_name (launch_context, "launched", info, platform_data);
g_variant_unref (platform_data);
}
notify_desktop_launch (session_bus,
info,
pid,