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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_REMOTE_COCOA_APP_SHIM_WINDOW_MOVE_LOOP_H_
#define COMPONENTS_REMOTE_COCOA_APP_SHIM_WINDOW_MOVE_LOOP_H_
#import <Cocoa/Cocoa.h>
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "ui/gfx/mac/scoped_cocoa_disable_screen_updates.h"
namespace remote_cocoa {
class NativeWidgetNSWindowBridge;
// Used by NativeWidgetNSWindowBridge when dragging detached tabs.
class CocoaWindowMoveLoop {
public:
CocoaWindowMoveLoop(NativeWidgetNSWindowBridge* owner,
const NSPoint& initial_mouse_in_screen);
CocoaWindowMoveLoop(const CocoaWindowMoveLoop&) = delete;
CocoaWindowMoveLoop& operator=(const CocoaWindowMoveLoop&) = delete;
~CocoaWindowMoveLoop();
// Initiates the drag until a mouse up event is observed, or End() is called.
// Returns true if a mouse up event ended the loop.
bool Run();
void End();
private:
enum LoopExitReason {
ENDED_EXTERNALLY,
MOUSE_UP,
WINDOW_DESTROYED,
};
raw_ptr<NativeWidgetNSWindowBridge> owner_; // Weak. Owns this.
// Initial mouse location at the time before the CocoaWindowMoveLoop is
// created.
NSPoint initial_mouse_in_screen_;
// Pointer to a stack variable holding the exit reason.
raw_ptr<LoopExitReason> exit_reason_ref_ = nullptr;
base::OnceClosure quit_closure_;
std::unique_ptr<gfx::ScopedCocoaDisableScreenUpdates> screen_disabler_;
// WeakPtrFactory for event monitor safety.
base::WeakPtrFactory<CocoaWindowMoveLoop> weak_factory_;
};
} // namespace remote_cocoa
#endif // COMPONENTS_REMOTE_COCOA_APP_SHIM_WINDOW_MOVE_LOOP_H_
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