MacViews: Implemented Drag & Drop

ui/views/cocoa/bridged_native_widget.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_COCOA_BRIDGED_NATIVE_WIDGET_H_
 #define UI_VIEWS_COCOA_BRIDGED_NATIVE_WIDGET_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include <memory>
@@ skipping 16 matching lines @@
 namespace ui {
 class InputMethod;
 }
 
 namespace views {
 namespace test {
 class BridgedNativeWidgetTestApi;
 }
 
 class CocoaMouseCapture;
+class DragDropClientMac;
 class NativeWidgetMac;
 class View;
 
 // A bridge to an NSWindow managed by an instance of NativeWidgetMac or
 // DesktopNativeWidgetMac. Serves as a helper class to bridge requests from the
 // NativeWidgetMac to the Cocoa window. Behaves a bit like an aura::Window.
 class VIEWS_EXPORT BridgedNativeWidget
     : public ui::LayerDelegate,
       public ui::LayerOwner,
       public ui::internal::InputMethodDelegate,
@@ skipping 117 matching lines @@
   void ClearAssociationForView(const views::View* view);
   // Sorts child NSViews according to NativeViewHosts order in views hierarchy.
   void ReorderChildViews();
 
   NativeWidgetMac* native_widget_mac() { return native_widget_mac_; }
   BridgedContentView* ns_view() { return bridged_view_; }
   NSWindow* ns_window() { return window_; }
 
   TooltipManager* tooltip_manager() { return tooltip_manager_.get(); }
 
+  DragDropClientMac* drag_drop_client() { return drag_drop_client_.get(); }
+
   // The parent widget specified in Widget::InitParams::parent. If non-null, the
   // parent will close children before the parent closes, and children will be
   // raised above their parent when window z-order changes.
   BridgedNativeWidgetOwner* parent() { return parent_; }
   const std::vector<BridgedNativeWidget*>& child_windows() {
     return child_windows_;
   }
 
   bool target_fullscreen_state() const { return target_fullscreen_state_; }
   bool window_visible() { return window_visible_; }
@@ skipping 72 matching lines @@
   bool IsVisibleParent() const override;
   void RemoveChildWindow(BridgedNativeWidget* child) override;
 
   views::NativeWidgetMac* native_widget_mac_;  // Weak. Owns this.
   base::scoped_nsobject<NSWindow> window_;
   base::scoped_nsobject<ViewsNSWindowDelegate> window_delegate_;
   base::scoped_nsobject<BridgedContentView> bridged_view_;
   std::unique_ptr<ui::InputMethod> input_method_;
   std::unique_ptr<CocoaMouseCapture> mouse_capture_;
   std::unique_ptr<TooltipManager> tooltip_manager_;
+  std::unique_ptr<DragDropClientMac> drag_drop_client_;
   FocusManager* focus_manager_;  // Weak. Owned by our Widget.
   Widget::InitParams::Type widget_type_;
 
   BridgedNativeWidgetOwner* parent_;  // Weak. If non-null, owns this.
   std::vector<BridgedNativeWidget*> child_windows_;
 
   base::scoped_nsobject<NSView> compositor_superview_;
   std::unique_ptr<ui::AcceleratedWidgetMac> compositor_widget_;
   std::unique_ptr<ui::Compositor> compositor_;
 
@@ skipping 23 matching lines @@
   bool invalidate_shadow_on_frame_swap_ = false;
 
   AssociatedViews associated_views_;
 
   DISALLOW_COPY_AND_ASSIGN(BridgedNativeWidget);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_COCOA_BRIDGED_NATIVE_WIDGET_H_