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Code Issues Projects Releases Packages Wiki Activity Actions 11

WindowServer: Don't start a drag and drop unless holding Primary mouse

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Adds a member to record the last processed mouse buttons. If they
do not include MouseButton::Primary, return early before creating
a new drag and drop client. This fixes race conditions in which
MouseUp events canceling or completing a drop could be swallowed
by Overlay creation or postponed by an executing DragOperation,
leaving the operation in limbo.
This commit is contained in:
thankyouverycool 2022-08-12 19:34:04 -04:00 • committed by Andreas Kling
commit 9bcd7dc0ce
Notes: sideshowbarker 2024-07-17 08:12:16 +09:00
4 changed files with 6 additions and 2 deletions
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2
Userland/Services/WindowServer/ConnectionFromClient.cpp
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@ -817,7 +817,7 @@ void ConnectionFromClient::start_window_resize(i32 window_id)
Messages::WindowServer::StartDragResponse ConnectionFromClient::start_drag(String const& text, HashMap<String, ByteBuffer> const& mime_data, Gfx::ShareableBitmap const& drag_bitmap)
{
auto& wm = WindowManager::the();
if (wm.dnd_client())
if (wm.dnd_client() || !(wm.last_processed_buttons() & MouseButton::Primary))
return false;
wm.start_dnd_drag(*this, text, drag_bitmap.bitmap(), Core::MimeData::construct(mime_data));