Blame SOURCES/0002-window-Emit-an-error-and-return-when-trying-to-activ.patch

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From 9a8bb8a205656ca1089444a041c99c5591477642 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Marco=20Trevisan=20=28Trevi=C3=B1o=29?= <mail@3v1n0.net>
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Date: Fri, 3 May 2019 18:10:47 +0000
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Subject: [PATCH 2/2] window: Emit an error and return when trying to activate
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 an unmanaged
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If something (i.e. gnome-shell or an extension) tries to activate an unmanaged
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window, we should warn about this and avoid to perform further actions as this
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could lead to a crash of mutter, since the window has not valid flags (like
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workspace) set anymore at this stage.
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Fixes https://gitlab.gnome.org/GNOME/mutter/issues/580
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https://gitlab.gnome.org/GNOME/mutter/merge_requests/564
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(cherry picked from commit a6fc656e917fd48b8708b8d9f4bf9f8b15581313)
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---
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 src/core/window.c | 7 +++++++
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 1 file changed, 7 insertions(+)
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diff --git a/src/core/window.c b/src/core/window.c
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index d2c24506b..725cca7ce 100644
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--- a/src/core/window.c
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+++ b/src/core/window.c
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@@ -3683,6 +3683,13 @@ meta_window_activate_full (MetaWindow     *window,
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 {
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   MetaWorkspaceManager *workspace_manager = window->display->workspace_manager;
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   gboolean allow_workspace_switch;
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+
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+  if (window->unmanaging)
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+    {
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+      g_warning ("Trying to activate unmanaged window '%s'", window->desc);
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+      return;
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+    }
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+
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   meta_topic (META_DEBUG_FOCUS,
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               "_NET_ACTIVE_WINDOW message sent for %s at time %u "
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               "by client type %u.\n",
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-- 
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2.21.0
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