Add forgotten patches, sigh
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From faa003812c10ab14bc69d6add078ff10528dc78b Mon Sep 17 00:00:00 2001
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From: Carlos Garnacho <carlosg@gnome.org>
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Date: Mon, 13 Feb 2023 20:12:38 +0100
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Subject: [PATCH 1/3] x11: Avoid updating focus on wayland compositor
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Reading upon the history of this code branch (commits 6891ce95dce
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and 7a4c808e43d4 are most relevant), it seems this code is meant to
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synchronize Mutter focus state taking the Xserver state as true.
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That is, if Mutter tried to change the focus but something truncated
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that action, Mutter focus will be changed to be in sync with the
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Xserver again.
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This sounds backwards in a Wayland session. Mutter focus should be
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the canonical source, and not second-guessed from the current Xserver
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focus window. These race conditions might still apply between X11
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clients, so make these paths only apply in that case.
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An example of this breaking can be reproduced with a Spotify and
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Firefox window, moving the focus from the first to the second by
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going to the GNOME Shell overview in between, and clicking the
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Firefox window from there. The Firefox window will be raised, but
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refuse to take focus.
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It's unclear what made this an issue recently, perhaps commit
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0e6395d9328 since the now possibly ignored XI_FocusIn/Out events
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affect this accounting of the Xserver focused window. Anyhow it
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sounds better to ignore these paths for Wayland/native altogether.
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Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2841>
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---
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src/x11/events.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/src/x11/events.c b/src/x11/events.c
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index fd0f84c4a..89733ba33 100644
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--- a/src/x11/events.c
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+++ b/src/x11/events.c
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@@ -1928,60 +1928,61 @@ meta_x11_display_handle_xevent (MetaX11Display *x11_display,
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bypass_gtk = bypass_compositor = TRUE;
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goto out;
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}
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#ifdef HAVE_XWAYLAND
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wayland_compositor = meta_context_get_wayland_compositor (context);
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if (meta_is_wayland_compositor () &&
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meta_xwayland_manager_handle_xevent (&wayland_compositor->xwayland_manager,
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event))
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{
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bypass_gtk = bypass_compositor = TRUE;
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goto out;
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}
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#endif
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if (process_selection_event (x11_display, event))
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{
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bypass_gtk = bypass_compositor = TRUE;
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goto out;
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}
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display->current_time = event_get_time (x11_display, event);
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if (META_IS_BACKEND_X11 (backend))
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meta_backend_x11_handle_event (META_BACKEND_X11 (backend), event);
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if (x11_display->focused_by_us &&
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event->xany.serial > x11_display->focus_serial &&
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display->focus_window &&
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+ display->focus_window->client_type == META_WINDOW_CLIENT_TYPE_X11 &&
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!window_has_xwindow (display->focus_window, x11_display->server_focus_window) &&
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meta_display_windows_are_interactable (display))
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{
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meta_topic (META_DEBUG_FOCUS, "Earlier attempt to focus %s failed",
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display->focus_window->desc);
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meta_x11_display_update_focus_window (x11_display,
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x11_display->server_focus_window,
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x11_display->server_focus_serial,
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FALSE);
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meta_display_update_focus_window (display,
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meta_x11_display_lookup_x_window (x11_display,
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x11_display->server_focus_window));
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}
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if (event->xany.window == x11_display->xroot)
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{
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cursor_tracker = meta_backend_get_cursor_tracker (backend);
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if (META_IS_CURSOR_TRACKER_X11 (cursor_tracker))
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{
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MetaCursorTrackerX11 *cursor_tracker_x11 =
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META_CURSOR_TRACKER_X11 (cursor_tracker);
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if (meta_cursor_tracker_x11_handle_xevent (cursor_tracker_x11, event))
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{
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bypass_gtk = bypass_compositor = TRUE;
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goto out;
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}
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}
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}
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--
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2.39.2
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@ -0,0 +1,101 @@
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From 184c4fd7b8d13767ce8fd525040b211c1f133dbf Mon Sep 17 00:00:00 2001
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From: Carlos Garnacho <carlosg@gnome.org>
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Date: Tue, 28 Feb 2023 22:02:05 +0100
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Subject: [PATCH 2/3] x11: Ignore _NET_ACTIVE_WINDOW client messages while
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grabbed
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When a X11 application is started, typically what happens is:
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- A startup notification token is created, with a _TIME%d suffix
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- The application being spawned receives it through the environment
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- (dbus piping, maybe)
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- The application replies the startup notification token, and
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fetches the timestamp from it
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- The application makes a _NET_ACTIVE_WINDOW client message request
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with this timestamp
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- Mutter handles this client request and activates/focuses the window
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Prevent this last step if windows are not interactable (e.g. there is
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a compositor grab) and ignore the focus request. This specifically
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applies to X11 clients requesting focus themselves, and unlike previous
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approaches, doesn't try to prevent focus changes that do come through
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interaction with Mutter/GNOME Shell.
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This should only break if applications do not observe _NET_ACTIVE_WINDOW
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and perform XSetInputFocus on themselves, but in that case the X11
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keyboard focus is stolen from our hands already.
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---
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src/x11/window-x11.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/x11/window-x11.c b/src/x11/window-x11.c
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index 34dbeb855..36728555a 100644
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--- a/src/x11/window-x11.c
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+++ b/src/x11/window-x11.c
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@@ -3421,61 +3421,62 @@ meta_window_x11_client_message (MetaWindow *window,
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if (window_drag && (button_mask & (1 << button)) == 0)
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meta_window_drag_end (window_drag);
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}
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}
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return TRUE;
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}
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else if (event->xclient.message_type ==
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x11_display->atom__NET_MOVERESIZE_WINDOW)
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{
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MetaGravity gravity;
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guint value_mask;
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gravity = (MetaGravity) (event->xclient.data.l[0] & 0xff);
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value_mask = (event->xclient.data.l[0] & 0xf00) >> 8;
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/* source = (event->xclient.data.l[0] & 0xf000) >> 12; */
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if (gravity == 0)
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gravity = window->size_hints.win_gravity;
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meta_window_move_resize_request(window,
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value_mask,
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gravity,
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event->xclient.data.l[1], /* x */
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event->xclient.data.l[2], /* y */
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event->xclient.data.l[3], /* width */
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event->xclient.data.l[4]); /* height */
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}
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else if (event->xclient.message_type ==
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- x11_display->atom__NET_ACTIVE_WINDOW)
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+ x11_display->atom__NET_ACTIVE_WINDOW &&
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+ meta_display_windows_are_interactable (window->display))
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{
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MetaClientType source_indication;
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guint32 timestamp;
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meta_verbose ("_NET_ACTIVE_WINDOW request for window '%s', activating",
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window->desc);
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source_indication = event->xclient.data.l[0];
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timestamp = event->xclient.data.l[1];
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if (source_indication > META_CLIENT_TYPE_MAX_RECOGNIZED)
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source_indication = META_CLIENT_TYPE_UNKNOWN;
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if (timestamp == 0)
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{
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/* Client using older EWMH _NET_ACTIVE_WINDOW without a timestamp */
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meta_warning ("Buggy client sent a _NET_ACTIVE_WINDOW message with a "
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"timestamp of 0 for %s",
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window->desc);
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timestamp = meta_display_get_current_time (display);
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}
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meta_window_activate_full (window, timestamp, source_indication, NULL);
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return TRUE;
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}
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else if (event->xclient.message_type ==
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x11_display->atom__NET_WM_FULLSCREEN_MONITORS)
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{
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MetaLogicalMonitor *top, *bottom, *left, *right;
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--
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2.39.2
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@ -0,0 +1,90 @@
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From 6ccd0c2ea3f0628b3ffe8158ec69bee9420e9089 Mon Sep 17 00:00:00 2001
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From: Carlos Garnacho <carlosg@gnome.org>
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Date: Wed, 1 Mar 2023 13:58:13 +0100
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Subject: [PATCH 3/3] core: Avoid focusing windows on map during grabs
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Normally, mutter implicitly allows a window being shown to take
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focus. This is normally desired, except it steals input from
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GNOME Shell self. Avoid focusing the just shown window in those
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situations.
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---
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src/core/window.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/src/core/window.c b/src/core/window.c
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index 2ec62c22c..f137e6822 100644
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--- a/src/core/window.c
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+++ b/src/core/window.c
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@@ -1967,60 +1967,69 @@ window_is_terminal (MetaWindow *window)
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else if (strcmp (window->res_class, "Terminal") == 0)
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return TRUE;
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return FALSE;
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}
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/* This function determines what state the window should have assuming that it
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* and the focus_window have no relation
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*/
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static void
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window_state_on_map (MetaWindow *window,
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gboolean *takes_focus,
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gboolean *places_on_top)
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{
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gboolean intervening_events;
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intervening_events = intervening_user_event_occurred (window);
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*takes_focus = !intervening_events;
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*places_on_top = *takes_focus;
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/* don't initially focus windows that are intended to not accept
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* focus
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*/
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if (!meta_window_is_focusable (window))
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{
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*takes_focus = FALSE;
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return;
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}
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+ /* Do not focus window on map if input is already taken by the
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+ * compositor.
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+ */
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+ if (!meta_display_windows_are_interactable (window->display))
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+ {
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+ *takes_focus = FALSE;
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+ return;
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+ }
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+
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/* Terminal usage may be different; some users intend to launch
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* many apps in quick succession or to just view things in the new
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* window while still interacting with the terminal. In that case,
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* apps launched from the terminal should not take focus. This
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* isn't quite the same as not allowing focus to transfer from
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* terminals due to new window map, but the latter is a much easier
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* approximation to enforce so we do that.
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*/
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if (*takes_focus &&
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meta_prefs_get_focus_new_windows () == G_DESKTOP_FOCUS_NEW_WINDOWS_STRICT &&
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!window->display->allow_terminal_deactivation &&
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window_is_terminal (window->display->focus_window) &&
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!meta_window_is_ancestor_of_transient (window->display->focus_window,
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window))
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{
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meta_topic (META_DEBUG_FOCUS,
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"focus_window is terminal; not focusing new window.");
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*takes_focus = FALSE;
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*places_on_top = FALSE;
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}
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switch (window->type)
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{
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case META_WINDOW_UTILITY:
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case META_WINDOW_TOOLBAR:
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*takes_focus = FALSE;
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*places_on_top = FALSE;
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break;
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case META_WINDOW_DOCK:
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case META_WINDOW_DESKTOP:
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--
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2.39.2
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