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window: Expose Flatpak application ID

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GNOME Shell's window matching currently fails frequently with Flatpak
applications, as one of the primary hints used to link windows with
.desktop files - the WM_CLASS - no longer matches when flatpak renames
the exported .desktop file. Luckily, Flatpak provides us with a fail-safe
way to map from the PID to the corresponding application ID, so expose an
appropriate method that allows GNOME Shell to reliably match windows to
the corresponding Flatpak app.

https://bugzilla.gnome.org/show_bug.cgi?id=772614
This commit is contained in:
Florian Müllner 2016-10-07 17:55:32 +02:00
parent e9944350d3
commit bccff5bdd8
3 changed files with 37 additions and 0 deletions
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1
src/core/window-private.h
View File

@ -164,6 +164,7 @@ struct _MetaWindow
char *startup_id;
char *mutter_hints;
char *flatpak_id;
char *gtk_theme_variant;
char *gtk_application_id;
char *gtk_unique_bus_name;

35
src/core/window.c
View File

@ -293,6 +293,7 @@ meta_window_finalize (GObject *object)
g_free (window->res_name);
g_free (window->title);
g_free (window->desc);
g_free (window->flatpak_id);
g_free (window->gtk_theme_variant);
g_free (window->gtk_application_id);
g_free (window->gtk_unique_bus_name);
@ -764,6 +765,27 @@ sync_client_window_mapped (MetaWindow *window)
meta_error_trap_pop (window->display);
}
static void
meta_window_update_flatpak_id (MetaWindow *window)
{
uint32_t pid = meta_window_get_client_pid (window);
g_autoptr(GKeyFile) key_file = NULL;
g_autofree char *info_filename = NULL;
g_clear_pointer (&window->flatpak_id, g_free);
if (pid == 0)
return;
key_file = g_key_file_new ();
info_filename = g_strdup_printf ("/proc/%u/root/.flatpak-info", pid);
if (!g_key_file_load_from_file (key_file, info_filename, G_KEY_FILE_NONE, NULL))
return;
window->flatpak_id = g_key_file_get_string (key_file, "Application", "name", NULL);
}
static void
meta_window_update_desc (MetaWindow *window)
{
@ -863,6 +885,7 @@ _meta_window_shared_new (MetaDisplay *display,
window->screen = screen;
meta_window_update_flatpak_id (window);
meta_window_update_desc (window);
window->override_redirect = attrs->override_redirect;
@ -6897,6 +6920,18 @@ meta_window_get_wm_class_instance (MetaWindow *window)
return window->res_name;
}
/**
* meta_window_get_flatpak_id:
* @window: a #MetaWindow
*
* Return value: (transfer none): the Flatpak application ID or %NULL
**/
const char *
meta_window_get_flatpak_id (MetaWindow *window)
{
return window->flatpak_id;
}
/**
* meta_window_get_gtk_theme_variant:
* @window: a #MetaWindow

1
src/meta/window.h
View File

@ -138,6 +138,7 @@ const char * meta_window_get_wm_class (MetaWindow *window);
const char * meta_window_get_wm_class_instance (MetaWindow *window);
gboolean meta_window_showing_on_its_workspace (MetaWindow *window);
const char * meta_window_get_flatpak_id (MetaWindow *window);
const char * meta_window_get_gtk_theme_variant (MetaWindow *window);
const char * meta_window_get_gtk_application_id (MetaWindow *window);
const char * meta_window_get_gtk_unique_bus_name (MetaWindow *window);