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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_BASE_X_TEST_X11_PROPERTY_CHANGE_WAITER_H_
#define UI_BASE_X_TEST_X11_PROPERTY_CHANGE_WAITER_H_
#include <stdint.h>
#include "base/functional/callback.h"
#include "ui/events/platform_event.h"
#include "ui/gfx/x/connection.h"
#include "ui/gfx/x/event.h"
#include "ui/gfx/x/window_event_manager.h"
namespace ui {
// Blocks till the value of |property| on |window| changes.
class X11PropertyChangeWaiter : public x11::EventObserver {
public:
X11PropertyChangeWaiter(x11::Window window, const char* property);
X11PropertyChangeWaiter(const X11PropertyChangeWaiter&) = delete;
X11PropertyChangeWaiter& operator=(const X11PropertyChangeWaiter&) = delete;
~X11PropertyChangeWaiter() override;
// Blocks till the value of |property_| changes.
virtual void Wait();
protected:
// Returns whether the run loop can exit.
virtual bool ShouldKeepOnWaiting();
x11::Window xwindow() const { return x_window_; }
private:
// x11::EventObserver:
void OnEvent(const x11::Event& event) override;
const raw_ptr<x11::Connection> connection_;
x11::Window x_window_;
const char* property_;
x11::ScopedEventSelector x_window_events_;
// Whether Wait() should block.
bool wait_;
// Ends the run loop.
base::OnceClosure quit_closure_;
};
} // namespace ui
#endif // UI_BASE_X_TEST_X11_PROPERTY_CHANGE_WAITER_H_
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