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Send synthetic left button release after drag ends to fix stale mouse state

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Co-authored-by: kovidgoyal <1308621+kovidgoyal@users.noreply.github.com>
Agent-Logs-Url: https://github.com/kovidgoyal/kitty/sessions/e3cf07a9-b3c0-4786-b264-a83b85f098ac
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copilot-swe-agent[bot] 2026-03-26 14:16:44 +00:00 committed by GitHub
parent 215bbf68de
commit efe319f755
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1 changed files with 10 additions and 0 deletions
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10
glfw/input.c vendored
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@ -1160,6 +1160,7 @@ GLFWAPI GLFWdragsourcefun glfwSetDragSourceCallback(GLFWwindow* handle, GLFWdrag
void
_glfwFreeDragSourceData(void) {
GLFWid drag_window_id = _glfw.drag.window_id;
_glfwPlatformFreeDragSourceData();
if (_glfw.drag.items) {
for (size_t i = 0; i < _glfw.drag.item_count; i++) {
@ -1171,6 +1172,15 @@ _glfwFreeDragSourceData(void) {
GLFWid iid = _glfw.drag.instance_id;
memset(&_glfw.drag, 0, sizeof(_glfw.drag));
_glfw.drag.instance_id = iid;
// Send a synthetic left button release to the drag source window if the
// button is still marked as pressed. The focus-loss release was suppressed
// while the drag was in progress, and on some platforms (Wayland, Cocoa)
// the OS never sends a natural button release after the drag ends.
if (drag_window_id) {
_GLFWwindow* drag_window = _glfwWindowForId(drag_window_id);
if (drag_window && drag_window->mouseButtons[GLFW_MOUSE_BUTTON_LEFT] == GLFW_PRESS)
_glfwInputMouseClick(drag_window, GLFW_MOUSE_BUTTON_LEFT, GLFW_RELEASE, 0);
}
}
GLFWAPI int