| // Copyright 2017 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_EXO_DATA_DEVICE_H_ |
| #define COMPONENTS_EXO_DATA_DEVICE_H_ |
| |
| #include <cstdint> |
| |
| #include "base/memory/raw_ptr.h" |
| #include "base/memory/weak_ptr.h" |
| #include "components/exo/data_offer_observer.h" |
| #include "components/exo/seat_observer.h" |
| #include "components/exo/surface.h" |
| #include "components/exo/surface_observer.h" |
| #include "ui/aura/client/drag_drop_client.h" |
| #include "ui/aura/client/drag_drop_delegate.h" |
| #include "ui/base/clipboard/clipboard_observer.h" |
| #include "ui/base/dragdrop/mojom/drag_drop_types.mojom-forward.h" |
| |
| namespace ui { |
| class DropTargetEvent; |
| } |
| |
| namespace exo { |
| |
| class DataDeviceDelegate; |
| class DataOffer; |
| class ScopedDataOffer; |
| class DataSource; |
| class Seat; |
| class ScopedSurface; |
| |
| enum class DndAction { kNone, kCopy, kMove, kAsk }; |
| |
| // DataDevice to start drag and drop and copy and paste operations. |
| class DataDevice : public DataOfferObserver, |
| public aura::client::DragDropDelegate, |
| public ui::ClipboardObserver, |
| public SurfaceObserver, |
| public SeatObserver { |
| public: |
| DataDevice(DataDeviceDelegate* delegate, Seat* seat); |
| |
| DataDevice(const DataDevice&) = delete; |
| DataDevice& operator=(const DataDevice&) = delete; |
| |
| ~DataDevice() override; |
| |
| // Starts drag-and-drop operation. |
| // |source| represents data comes from the client starting drag operation. Can |
| // be null if the data will be transferred only in the client. |origin| is |
| // the surface which starts the drag and drop operation. |icon| is the |
| // nullable image which is rendered at the next to cursor while drag |
| // operation. |
| void StartDrag(DataSource* source, |
| Surface* origin, |
| Surface* icon, |
| ui::mojom::DragEventSource event_source); |
| |
| // Sets selection data to the clipboard. |
| // |source| represents data comes from the client. |
| void SetSelection(DataSource* source); |
| |
| // aura::client::DragDropDelegate: |
| void OnDragEntered(const ui::DropTargetEvent& event) override; |
| aura::client::DragUpdateInfo OnDragUpdated( |
| const ui::DropTargetEvent& event) override; |
| void OnDragExited() override; |
| aura::client::DragDropDelegate::DropCallback GetDropCallback( |
| const ui::DropTargetEvent& event) override; |
| |
| // Overridden from ui::ClipboardObserver: |
| void OnClipboardDataChanged() override; |
| |
| // Overridden from SeatObserver: |
| void OnSurfaceCreated(Surface* surface) override; |
| void OnSurfaceFocused(Surface* surface, |
| Surface* lost_focus, |
| bool has_focused_client) override; |
| |
| // Overridden from DataOfferObserver: |
| void OnDataOfferDestroying(DataOffer* data_offer) override; |
| |
| // Overridden from SurfaceObserver: |
| void OnSurfaceDestroying(Surface* surface) override; |
| |
| DataDeviceDelegate* get_delegate() { return delegate_; } |
| |
| private: |
| Surface* GetEffectiveTargetForEvent(const ui::DropTargetEvent& event) const; |
| void SetSelectionToCurrentClipboardData(); |
| |
| void PerformDropOrExitDrag( |
| base::ScopedClosureRunner exit_drag, |
| std::unique_ptr<ui::OSExchangeData> data, |
| ui::mojom::DragOperation& output_drag_op, |
| std::unique_ptr<ui::LayerTreeOwner> drag_image_layer_owner); |
| |
| const raw_ptr<DataDeviceDelegate, DanglingUntriaged> delegate_; |
| const raw_ptr<Seat> seat_; |
| std::unique_ptr<ScopedDataOffer> data_offer_; |
| std::unique_ptr<ScopedSurface> focused_surface_; |
| |
| base::OnceClosure quit_closure_; |
| bool drop_succeeded_; |
| base::WeakPtrFactory<DataDevice> drop_weak_factory_{this}; |
| base::WeakPtrFactory<DataDevice> weak_factory_{this}; |
| }; |
| |
| } // namespace exo |
| |
| #endif // COMPONENTS_EXO_DATA_DEVICE_H_ |