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mutter/SOURCES/0005-cgroup-Get-app-info-fr...

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From 50d0355bda637a2b214e14c23e767e80066c1084 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@redhat.com>
Date: Fri, 18 Oct 2024 13:23:01 +0200
Subject: [PATCH 5/5] cgroup: Get app info from gnome-shell when possible
Using cgroups alone for getting the app-id is flawed, as there are many
situations where the cgroup isn't set up properly, e.g. opening via
xdg-open or equivalent. gnome-shell already has a system for associating
windows with apps, so reuse this for the cgroup app info.
---
src/core/display-private.h | 2 ++
src/core/display.c | 56 +++++++++++++++++++++++++++++++-------
src/core/window.c | 6 ++++
3 files changed, 54 insertions(+), 10 deletions(-)
diff --git a/src/core/display-private.h b/src/core/display-private.h
index 3c7e0898bf..9836e560b3 100644
--- a/src/core/display-private.h
+++ b/src/core/display-private.h
@@ -304,6 +304,8 @@ gboolean meta_cgroup_unref (MetaCGroup *cgroup);
void meta_cgroup_update_workspace (MetaCGroup *cgroup,
MetaWorkspace *workspace,
guint32 timestamp);
+void meta_cgroup_update_app_info (MetaCGroup *cgroup,
+ MetaWindow *window);
/* A "stack id" is a XID or a stamp */
#define META_STACK_ID_IS_X11(id) ((id) < G_GUINT64_CONSTANT(0x100000000))
diff --git a/src/core/display.c b/src/core/display.c
index e99e787fbe..637bc006d8 100644
--- a/src/core/display.c
+++ b/src/core/display.c
@@ -162,6 +162,7 @@ enum
WORKAREAS_CHANGED,
CLOSING,
INIT_XSERVER,
+ FIND_APP_INFO,
LAST_SIGNAL
};
@@ -515,6 +516,12 @@ meta_display_class_init (MetaDisplayClass *klass)
0, g_signal_accumulator_first_wins,
NULL, NULL,
G_TYPE_BOOLEAN, 1, G_TYPE_TASK);
+ display_signals[FIND_APP_INFO] =
+ g_signal_new ("find-app-info",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ 0, NULL, NULL, NULL,
+ G_TYPE_DESKTOP_APP_INFO, 1, META_TYPE_WINDOW);
g_object_class_install_property (object_class,
PROP_COMPOSITOR_MODIFIERS,
@@ -1620,25 +1627,32 @@ extract_app_id_from_cgroup (const char *cgroup)
}
static MetaCGroup*
-meta_cgroup_new (const char *path)
+meta_cgroup_new (const char *path,
+ GAppInfo *app_info)
{
MetaCGroup *cgroup;
- g_autofree char *app_id = NULL;
cgroup = g_new0 (MetaCGroup, 1);
cgroup->path = g_file_new_for_path (path);
g_ref_count_init (&cgroup->ref_count);
- app_id = extract_app_id_from_cgroup (path);
-
- if (app_id)
+ if (!app_info)
{
- g_autoptr (GDesktopAppInfo) app_info = NULL;
+ g_autofree char *app_id = NULL;
- app_info = g_desktop_app_info_new (app_id);
+ app_id = extract_app_id_from_cgroup (path);
+ if (app_id)
+ {
+ GDesktopAppInfo *desktop_app_info;
- if (app_info)
- cgroup->app_info = G_APP_INFO (g_steal_pointer (&app_info));
+ desktop_app_info = g_desktop_app_info_new (app_id);
+ if (desktop_app_info)
+ cgroup->app_info = G_APP_INFO (desktop_app_info);
+ }
+ }
+ else if (app_info)
+ {
+ cgroup->app_info = g_object_ref (app_info);
}
return cgroup;
@@ -1687,12 +1701,30 @@ meta_cgroup_update_workspace (MetaCGroup *cgroup,
(gpointer *) &cgroup->last_active_workspace);
}
+void
+meta_cgroup_update_app_info (MetaCGroup *cgroup,
+ MetaWindow *window)
+{
+ g_autoptr (GDesktopAppInfo) app_info = NULL;
+
+ g_signal_emit (window->display,
+ display_signals[FIND_APP_INFO], 0,
+ window, &app_info);
+
+ if (app_info)
+ {
+ g_clear_object (&cgroup->app_info);
+ cgroup->app_info = G_APP_INFO (g_steal_pointer (&app_info));
+ }
+}
+
void
meta_display_register_cgroup (MetaDisplay *display,
MetaWindow *window,
const char *path)
{
MetaCGroup *cgroup;
+ g_autoptr (GDesktopAppInfo) app_info = NULL;
cgroup = g_hash_table_lookup (display->cgroups, path);
@@ -1702,7 +1734,11 @@ meta_display_register_cgroup (MetaDisplay *display,
return;
}
- cgroup = meta_cgroup_new (path);
+ g_signal_emit (display,
+ display_signals[FIND_APP_INFO], 0,
+ window, &app_info);
+
+ cgroup = meta_cgroup_new (path, app_info ? G_APP_INFO (app_info) : NULL);
g_hash_table_insert (display->cgroups, g_file_get_path (cgroup->path), cgroup);
window->cgroup = cgroup;
}
diff --git a/src/core/window.c b/src/core/window.c
index 8ad8e5c4c4..6de815839f 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -8131,6 +8131,9 @@ meta_window_set_wm_class (MetaWindow *window,
window->res_class = g_strdup (wm_class);
g_object_notify_by_pspec (G_OBJECT (window), obj_props[PROP_WM_CLASS]);
+
+ if (window->cgroup)
+ meta_cgroup_update_app_info (window->cgroup, window);
}
void
@@ -8169,6 +8172,9 @@ meta_window_set_gtk_dbus_properties (MetaWindow *window,
g_object_notify_by_pspec (G_OBJECT (window), obj_props[PROP_GTK_WINDOW_OBJECT_PATH]);
g_object_thaw_notify (G_OBJECT (window));
+
+ if (window->cgroup)
+ meta_cgroup_update_app_info (window->cgroup, window);
}
static gboolean
--
2.44.0.501.g19981daefd.dirty