www-client/chromium: fix tab dragging with i3

No revbump because it is a minor issue.

Bug: https://bugs.gentoo.org/848981
Signed-off-by: Stephan Hartmann <sultan@gentoo.org>

1 files changed, 70 insertions, 0 deletions

diff --git a/www-client/chromium/files/chromium-102-i3-tab-dragging-fix.patch b/www-client/chromium/files/chromium-102-i3-tab-dragging-fix.patch
new file mode 100644
index 000000000000..3a6046b690a9
--- /dev/null
+++ b/www-client/chromium/files/chromium-102-i3-tab-dragging-fix.patch
@@ -0,0 +1,70 @@
+From 95b94a2b841b624be8c0c99730f7011aa56a6a60 Mon Sep 17 00:00:00 2001
+From: Tom Anderson <thomasanderson@chromium.org>
+Date: Thu, 26 May 2022 21:04:21 +0000
+Subject: [PATCH] Fix x11::WindowCache::GetWindowAtPoint() in i3
+
+In i3, container windows have a WM_NAME, but we're interested in the
+named content window.  This CL changes the DFS search order to check
+child windows before checking parent windows.
+
+R=​sky
+
+(cherry picked from commit 57032db2a7adea88585b1bb00a3cd6542d04285c)
+
+Fixed: 1316735
+Change-Id: I8049552f1c0faa7dcbc3bb6b25df2324ee9bbf7a
+Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3588704
+Auto-Submit: Thomas Anderson <thomasanderson@chromium.org>
+Reviewed-by: Scott Violet <sky@chromium.org>
+Commit-Queue: Scott Violet <sky@chromium.org>
+Cr-Original-Commit-Position: refs/heads/main@{#993220}
+Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3669471
+Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
+Cr-Commit-Position: refs/branch-heads/5005@{#1031}
+Cr-Branched-From: 5b4d9450fee01f821b6400e947b3839727643a71-refs/heads/main@{#992738}
+---
+
+diff --git a/ui/gfx/x/window_cache.cc b/ui/gfx/x/window_cache.cc
+index 0f1fa29..c12bea05 100644
+--- a/ui/gfx/x/window_cache.cc
++++ b/ui/gfx/x/window_cache.cc
+@@ -152,13 +152,13 @@
+     }
+   }
+ 
+-  if (info->has_wm_name)
+-    return window;
+   for (Window child : base::Reversed(info->children)) {
+     Window ret = GetWindowAtPoint(point_px, child, ignore);
+     if (ret != Window::None)
+       return ret;
+   }
++  if (info->has_wm_name)
++    return window;
+   return Window::None;
+ }
+ 
+diff --git a/ui/gfx/x/window_cache_unittest.cc b/ui/gfx/x/window_cache_unittest.cc
+index a4c2378..c88dbfd5 100644
+--- a/ui/gfx/x/window_cache_unittest.cc
++++ b/ui/gfx/x/window_cache_unittest.cc
+@@ -418,4 +418,19 @@
+   EXPECT_EQ(cache()->GetWindowAtPoint({150, 150}, root()), c);
+ }
+ 
++// Regression test for https://crbug.com/1316735
++// If both a parent and child window have a WM_NAME, the child window
++// should be returned by GetWindowAtPoint().
++TEST_F(WindowCacheTest, NestedWmName) {
++  connection()->MapWindow(root());
++  SetStringProperty(root(), Atom::WM_NAME, Atom::STRING, "root");
++
++  Window a = CreateWindow(root());
++  connection()->MapWindow(a);
++  SetStringProperty(a, Atom::WM_NAME, Atom::STRING, "a");
++
++  cache()->SyncForTest();
++  EXPECT_EQ(cache()->GetWindowAtPoint({100, 100}, root()), a);
++}
++
+ }  // namespace x11