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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 UI_VIEWS_COCOA_DRAG_DROP_CLIENT_MAC_H_
#define UI_VIEWS_COCOA_DRAG_DROP_CLIENT_MAC_H_
#import <Cocoa/Cocoa.h>
#include <memory>
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "components/remote_cocoa/app_shim/drag_drop_client.h"
#include "ui/base/dragdrop/mojom/drag_drop_types.mojom-forward.h"
#include "ui/base/dragdrop/os_exchange_data.h"
#include "ui/views/views_export.h"
#include "ui/views/widget/drop_helper.h"
namespace gfx {
class Point;
} // namespace gfx
namespace remote_cocoa {
class NativeWidgetNSWindowBridge;
} // namespace remote_cocoa
namespace views {
namespace test {
class DragDropClientMacTest;
} // namespace test
class View;
// Implements drag and drop on MacViews. This class acts as a bridge between
// the Views and native system's drag and drop. This class mimics
// DesktopDragDropClientAuraX11.
class VIEWS_EXPORT DragDropClientMac : public remote_cocoa::DragDropClient {
public:
DragDropClientMac(remote_cocoa::NativeWidgetNSWindowBridge* bridge,
View* root_view);
DragDropClientMac(const DragDropClientMac&) = delete;
DragDropClientMac& operator=(const DragDropClientMac&) = delete;
~DragDropClientMac() override;
// Initiates a drag and drop session.
void StartDragAndDrop(std::unique_ptr<ui::OSExchangeData> data,
int operation,
ui::mojom::DragEventSource source);
DropHelper* drop_helper() { return &drop_helper_; }
// remote_cocoa::DragDropClient:
NSDragOperation DragUpdate(id<NSDraggingInfo>) override;
NSDragOperation Drop(id<NSDraggingInfo> sender) override;
void EndDrag() override;
void DragExit() override;
private:
friend class test::DragDropClientMacTest;
// Converts the given NSPoint to the coordinate system in Views.
gfx::Point LocationInView(NSPoint point) const;
gfx::Point LocationInView(NSPoint point, NSWindow* destination_window) const;
// Provides the data for the drag and drop session.
std::unique_ptr<ui::OSExchangeData> exchange_data_;
// Used to handle drag and drop with Views.
DropHelper drop_helper_;
// The drag and drop operation.
int source_operation_ = 0;
int last_operation_ = 0;
// The bridge between the content view and the drag drop client.
raw_ptr<remote_cocoa::NativeWidgetNSWindowBridge, DanglingUntriaged>
bridge_; // Weak. Owns |this|.
// The closure for the drag and drop's run loop.
base::OnceClosure quit_closure_;
// Whether |this| is the source of current dragging session.
bool is_drag_source_ = false;
};
} // namespace views
#endif // UI_VIEWS_COCOA_DRAG_DROP_CLIENT_MAC_H_
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