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startup-notification: Delay cursor feedback updates

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A Wayland client repeatedly requesting activation of its surface using
the xdg-activation protocol would make mutter constantly update the
cursor.

To avoid needlessly updating the cursor back and forth between busy and
default, add a timeout to delay the update.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2849>
This commit is contained in:
Olivier Fourdan 2023-02-16 16:31:59 +01:00 committed by Marge Bot
parent 5e7754f742
commit 32e173c3ce
1 changed files with 38 additions and 3 deletions
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41
src/core/startup-notification.c
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@ -38,6 +38,7 @@
* might decide they need to launch it again.
*/
#define STARTUP_TIMEOUT_MS 15000
#define UPDATE_CURSOR_TIMEOUT_MS 20
enum
{
@ -92,6 +93,8 @@ struct _MetaStartupNotification
GSList *startup_sequences;
guint startup_sequence_timeout_id;
guint update_cursor_timeout_id;
MetaCursor cursor;
};
typedef struct
@ -133,22 +136,53 @@ meta_startup_notification_has_pending_sequences (MetaStartupNotification *sn)
}
static void
meta_startup_notification_update_feedback (MetaStartupNotification *sn)
meta_startup_notification_update_cursor (MetaStartupNotification *sn)
{
MetaDisplay *display = sn->display;
MetaCursor cursor;
if (meta_startup_notification_has_pending_sequences (sn))
{
meta_topic (META_DEBUG_STARTUP,
"Setting busy cursor");
meta_display_set_cursor (display, META_CURSOR_BUSY);
cursor = META_CURSOR_BUSY;
}
else
{
meta_topic (META_DEBUG_STARTUP,
"Setting default cursor");
meta_display_set_cursor (display, META_CURSOR_DEFAULT);
cursor = META_CURSOR_DEFAULT;
}
if (sn->cursor != cursor)
{
meta_display_set_cursor (display, cursor);
sn->cursor = cursor;
}
}
static gboolean
meta_startup_notification_cursor_timeout (gpointer user_data)
{
MetaStartupNotification *sn = user_data;
meta_startup_notification_update_cursor (sn);
sn->update_cursor_timeout_id = 0;
return G_SOURCE_REMOVE;
}
static void
meta_startup_notification_update_feedback (MetaStartupNotification *sn)
{
if (sn->update_cursor_timeout_id)
return;
meta_startup_notification_update_cursor (sn);
sn->update_cursor_timeout_id =
g_timeout_add (UPDATE_CURSOR_TIMEOUT_MS,
meta_startup_notification_cursor_timeout,
sn);
}
static void
@ -631,6 +665,7 @@ meta_startup_notification_finalize (GObject *object)
MetaStartupNotification *sn = META_STARTUP_NOTIFICATION (object);
g_clear_handle_id (&sn->startup_sequence_timeout_id, g_source_remove);
g_clear_handle_id (&sn->update_cursor_timeout_id, g_source_remove);
g_slist_free_full (sn->startup_sequences, g_object_unref);
sn->startup_sequences = NULL;