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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_VIEW_WIN_DELEGATE_H_
      6 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_VIEW_WIN_DELEGATE_H_
      7 
      8 #if defined(OS_MACOSX)
      9 #import <Cocoa/Cocoa.h>
     10 #endif
     11 
     12 #include "content/common/content_export.h"
     13 #include "ui/gfx/native_widget_types.h"
     14 
     15 #if defined(OS_MACOSX)
     16 @protocol RenderWidgetHostViewMacDelegate;
     17 #endif
     18 
     19 namespace gfx {
     20 class Size;
     21 }
     22 
     23 namespace ui {
     24 class FocusStoreGtk;
     25 }
     26 
     27 namespace content {
     28 class RenderFrameHost;
     29 class RenderWidgetHost;
     30 class WebDragDestDelegate;
     31 struct ContextMenuParams;
     32 
     33 // This interface allows a client to extend the functionality of the
     34 // WebContentsView implementation.
     35 class CONTENT_EXPORT WebContentsViewDelegate {
     36  public:
     37   virtual ~WebContentsViewDelegate() {}
     38 
     39   // Returns a delegate to process drags not handled by content.
     40   virtual WebDragDestDelegate* GetDragDestDelegate() = 0;
     41 
     42   // Shows a context menu.
     43   virtual void ShowContextMenu(RenderFrameHost* render_frame_host,
     44                                const ContextMenuParams& params) = 0;
     45 
     46 #if defined(USE_AURA)
     47   // These methods allow the embedder to intercept WebContentsViewWin's
     48   // implementation of these WebContentsView methods. See the WebContentsView
     49   // interface documentation for more information about these methods.
     50   virtual void StoreFocus() = 0;
     51   virtual void RestoreFocus() = 0;
     52   virtual bool Focus() = 0;
     53   virtual void TakeFocus(bool reverse) = 0;
     54   virtual void SizeChanged(const gfx::Size& size) = 0;
     55 #elif defined(OS_MACOSX)
     56   // Returns a newly-created delegate for the RenderWidgetHostViewMac, to handle
     57   // events on the responder chain.
     58   virtual NSObject<RenderWidgetHostViewMacDelegate>*
     59       CreateRenderWidgetHostViewDelegate(
     60           RenderWidgetHost* render_widget_host) = 0;
     61 #endif
     62 };
     63 
     64 }  // namespace content
     65 
     66 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_VIEW_WIN_DELEGATE_H_
     67