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gappinfo: Add launch-started signal

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Emit this when we're about to spawn or DBus activate a GAppInfo.  This
allows lauchers to keep the appinfo associated with a startup id.

We use a GVariant to allow for future exansion of the supplied data.
This commit is contained in:
Guido Günther
2021-09-29 08:19:09 +02:00
parent 5890b2bdea
commit 7665b748bb
4 changed files with 90 additions and 3 deletions
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36
gio/gappinfo.c
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@@ -1103,6 +1103,7 @@ g_app_info_delete (GAppInfo *appinfo)
enum {
LAUNCH_FAILED,
LAUNCH_STARTED,
LAUNCHED,
LAST_SIGNAL
};
@@ -1160,6 +1161,41 @@ g_app_launch_context_class_init (GAppLaunchContextClass *klass)
NULL, NULL, NULL,
G_TYPE_NONE, 1, G_TYPE_STRING);
/**
* GAppLaunchContext::launch-started:
* @context: the object emitting the signal
* @info: the #GAppInfo that is about to be launched
* @platform_data: (nullable): additional platform-specific data for this launch
*
* The #GAppLaunchContext::launch-started signal is emitted when a #GAppInfo is
* about to be launched. If non-null 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 `startup-notification-id` keys will be
* present.
*
* The value of the `startup-notification-id` key (type `s`) is a startup
* notification ID corresponding to the format from the [startup-notification
* specification](https://specifications.freedesktop.org/startup-notification-spec/startup-notification-0.1.txt).
* It allows tracking the progress of the launchee through startup.
*
* It is guaranteed that this signal is followed by either a #GAppLaunchContext::launched or
* #GAppLaunchContext::launch-failed signal.
*
* Since: 2.72
*/
signals[LAUNCH_STARTED] = g_signal_new (I_("launch-started"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GAppLaunchContextClass, launch_started),
NULL, NULL,
_g_cclosure_marshal_VOID__OBJECT_VARIANT,
G_TYPE_NONE, 2,
G_TYPE_APP_INFO, G_TYPE_VARIANT);
g_signal_set_va_marshaller (signals[LAUNCH_STARTED],
G_TYPE_FROM_CLASS (klass),
_g_cclosure_marshal_VOID__OBJECT_VARIANTv);
/**
* GAppLaunchContext::launched:
* @context: the object emitting the signal