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x11-display: Split out restoring of active workspace

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Splitting out the X11 display initialization from display_open() broke
restoring the previously active workspace in two ways:

 - when dynamic workspaces are used, the old workspaces haven't
   been restored yet, so we stay on the first workspace

 - when static workspaces are used, the code tries to access
   the compositor that hasn't been initialized yet, resulting
   in a segfault

Fix both those issues by splitting out restoring of the active workspace.

https://gitlab.gnome.org/GNOME/mutter/issues/479
This commit is contained in:
Florian Müllner 2019-03-01 12:03:46 +01:00 committed by Florian Müllner
parent 3e472faf5c
commit 7abceb434d
3 changed files with 43 additions and 26 deletions
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5
src/core/display.c
View File

@ -751,7 +751,10 @@ meta_display_open (void)
enable_compositor (display);
if (display->x11_display)
meta_x11_display_create_guard_window (display->x11_display);
{
meta_x11_display_restore_active_workspace (display->x11_display);
meta_x11_display_create_guard_window (display->x11_display);
}
/* Set up touch support */
display->gesture_tracker = meta_gesture_tracker_new ();

2
src/x11/meta-x11-display-private.h
View File

@ -156,6 +156,8 @@ struct _MetaX11Display
MetaX11Display *meta_x11_display_new (MetaDisplay *display, GError **error);
void meta_x11_display_restore_active_workspace (MetaX11Display *x11_display);
Window meta_x11_display_create_offscreen_window (MetaX11Display *x11_display,
Window parent,
long valuemask);

62
src/x11/meta-x11-display.c
View File

@ -1068,8 +1068,6 @@ meta_x11_display_new (MetaDisplay *display, GError **error)
Atom wm_sn_atom;
char buf[128];
guint32 timestamp;
MetaWorkspace *current_workspace;
uint32_t current_workspace_index = 0;
Atom atom_restart_helper;
Window restart_helper_window = None;
GdkDisplay *gdk_display;
@ -1275,27 +1273,6 @@ meta_x11_display_new (MetaDisplay *display, GError **error)
meta_x11_display_update_workspace_layout (x11_display);
/* Get current workspace */
if (meta_prop_get_cardinal (x11_display,
x11_display->xroot,
x11_display->atom__NET_CURRENT_DESKTOP,
&current_workspace_index))
{
meta_verbose ("Read existing _NET_CURRENT_DESKTOP = %d\n",
(int) current_workspace_index);
/* Switch to the _NET_CURRENT_DESKTOP workspace */
current_workspace = meta_workspace_manager_get_workspace_by_index (display->workspace_manager,
current_workspace_index);
if (current_workspace != NULL)
meta_workspace_activate (current_workspace, timestamp);
}
else
{
meta_verbose ("No _NET_CURRENT_DESKTOP present\n");
}
if (meta_prefs_get_dynamic_workspaces ())
{
int num = 0;
@ -1315,8 +1292,6 @@ meta_x11_display_new (MetaDisplay *display, GError **error)
meta_workspace_manager_update_num_workspaces (display->workspace_manager, timestamp, num);
}
set_active_workspace_hint (display->workspace_manager, x11_display);
g_signal_connect_object (display->workspace_manager, "active-workspace-changed",
G_CALLBACK (set_active_workspace_hint),
x11_display, 0);
@ -1356,6 +1331,43 @@ meta_x11_display_new (MetaDisplay *display, GError **error)
return x11_display;
}
void
meta_x11_display_restore_active_workspace (MetaX11Display *x11_display)
{
MetaDisplay *display;
MetaWorkspace *current_workspace;
uint32_t current_workspace_index = 0;
guint32 timestamp;
g_return_if_fail (META_IS_X11_DISPLAY (x11_display));
display = x11_display->display;
timestamp = x11_display->timestamp;
/* Get current workspace */
if (meta_prop_get_cardinal (x11_display,
x11_display->xroot,
x11_display->atom__NET_CURRENT_DESKTOP,
&current_workspace_index))
{
meta_verbose ("Read existing _NET_CURRENT_DESKTOP = %d\n",
(int) current_workspace_index);
/* Switch to the _NET_CURRENT_DESKTOP workspace */
current_workspace = meta_workspace_manager_get_workspace_by_index (display->workspace_manager,
current_workspace_index);
if (current_workspace != NULL)
meta_workspace_activate (current_workspace, timestamp);
}
else
{
meta_verbose ("No _NET_CURRENT_DESKTOP present\n");
}
set_active_workspace_hint (display->workspace_manager, x11_display);
}
int
meta_x11_display_get_screen_number (MetaX11Display *x11_display)
{