www-client/chromium: fix tag dragging (M97)

Bug: https://bugs.gentoo.org/830990
Package-Manager: Portage-3.0.28, Repoman-3.0.3
Signed-off-by: Stephan Hartmann <sultan@gentoo.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/www-client/chromium/files/chromium-97-fix-tag-dragging.patch b/www-client/chromium/files/chromium-97-fix-tag-dragging.patch
new file mode 100644
index 000000000000..6afd5a78ec05
--- /dev/null
+++ b/www-client/chromium/files/chromium-97-fix-tag-dragging.patch
@@ -0,0 +1,52 @@
+From 692ed3e237fc645253fff3fbb932ad45a525a7ba Mon Sep 17 00:00:00 2001
+From: Marco Genasci <fedeliallalinea@gmail.com>
+Date: Wed, 12 Jan 2022 16:08:41 +0100
+Subject: [PATCH 1/2] [X11] Fix tag dragging in Mutter and KWin
+
+ref: https://bugs.chromium.org/p/chromium/issues/detail?id=1279532
+caused by: https://bugs.chromium.org/p/chromium/issues/detail?id=1263023
+Patches from:
+https://chromium-review.googlesource.com/c/chromium/src/+/3373204
+https://chromium-review.googlesource.com/c/chromium/src/+/3355376
+---
+ .../x11/x11_topmost_window_finder.cc            | 17 +++++------------
+ 1 file changed, 5 insertions(+), 12 deletions(-)
+
+diff --git a/ui/platform_window/x11/x11_topmost_window_finder.cc b/ui/platform_window/x11/x11_topmost_window_finder.cc
+index 50e75e17f..e20bf0abf 100644
+--- a/ui/platform_window/x11/x11_topmost_window_finder.cc
++++ b/ui/platform_window/x11/x11_topmost_window_finder.cc
+@@ -44,15 +44,8 @@ bool EnumerateChildren(ShouldStopIteratingCallback should_stop_iterating,
+   for (iter = windows.rbegin(); iter != windows.rend(); iter++) {
+     if (IsWindowNamed(*iter) && should_stop_iterating.Run(*iter))
+       return true;
+-  }
+-
+-  // If we're at this point, we didn't find the window we're looking for at the
+-  // current level, so we need to recurse to the next level.  We use a second
+-  // loop because the recursion and call to XQueryTree are expensive and is only
+-  // needed for a small number of cases.
+-  if (++depth <= max_depth) {
+-    for (iter = windows.rbegin(); iter != windows.rend(); iter++) {
+-      if (EnumerateChildren(should_stop_iterating, *iter, max_depth, depth))
++    if (depth < max_depth) {
++      if (EnumerateChildren(should_stop_iterating, *iter, max_depth, depth + 1))
+         return true;
+     }
+   }
+@@ -68,9 +61,9 @@ bool EnumerateAllWindows(ShouldStopIteratingCallback should_stop_iterating,
+ 
+ void EnumerateTopLevelWindows(
+     ui::ShouldStopIteratingCallback should_stop_iterating) {
+-  // Some WMs parent 'top-level' windows in unnamed actual top-level windows
+-  // (ion WM), so extend the search depth to all children of top-level windows.
+-  const int kMaxSearchDepth = 1;
++  // WMs may reparent toplevel windows inside their own containers, so extend
++  // the search to all grandchildren of all toplevel windows.
++  const int kMaxSearchDepth = 2;
+   ui::EnumerateAllWindows(should_stop_iterating, kMaxSearchDepth);
+ }
+ 
+-- 
+2.34.1
+