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nodejs-electron/ElectronDesktopWindowTreeHostLinux-OnWindowTiledStateChanged-crash.patch

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From e9eda8f8456c98e3c3a438bfd2ff41d90f59a8ec Mon Sep 17 00:00:00 2001
From: "trop[bot]" <37223003+trop[bot]@users.noreply.github.com>
Date: Tue, 14 May 2024 21:26:51 +0000
Subject: [PATCH] Fix cast in ElectronDesktopWindowTreeHostLinux
The frame view of the widget is an `ClientFrameViewLinux` instance only
when both `frame` and `client_frame` booleans are set to `true`.
Otherwise it is an instance of a different class and thus casting to
`ClientFrameViewLinux` is incorrect and leads to crashes.
Fix: #41839
Co-authored-by: Fedor Indutny <indutny@signal.org>
---
.../ui/electron_desktop_window_tree_host_linux.cc | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/shell/browser/ui/electron_desktop_window_tree_host_linux.cc b/shell/browser/ui/electron_desktop_window_tree_host_linux.cc
index cfc87f6fb7efd..17936ba352a1c 100644
--- a/electron/shell/browser/ui/electron_desktop_window_tree_host_linux.cc
+++ b/electron/shell/browser/ui/electron_desktop_window_tree_host_linux.cc
@@ -71,9 +71,15 @@ void ElectronDesktopWindowTreeHostLinux::OnWindowStateChanged(
void ElectronDesktopWindowTreeHostLinux::OnWindowTiledStateChanged(
ui::WindowTiledEdges new_tiled_edges) {
- static_cast<ClientFrameViewLinux*>(
- native_window_view_->widget()->non_client_view()->frame_view())
- ->set_tiled_edges(new_tiled_edges);
+ // CreateNonClientFrameView creates `ClientFrameViewLinux` only when both
+ // frame and client_frame booleans are set, otherwise it is a different type
+ // of view.
+ if (native_window_view_->has_frame() &&
+ native_window_view_->has_client_frame()) {
+ static_cast<ClientFrameViewLinux*>(
+ native_window_view_->widget()->non_client_view()->frame_view())
+ ->set_tiled_edges(new_tiled_edges);
+ }
UpdateFrameHints();
}