Home | History | Annotate | Download | only in tab_contents 
      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 CHROME_BROWSER_UI_GTK_TAB_CONTENTS_CHROME_WEB_CONTENTS_VIEW_DELEGATE_GTK_H_
      6 #define CHROME_BROWSER_UI_GTK_TAB_CONTENTS_CHROME_WEB_CONTENTS_VIEW_DELEGATE_GTK_H_
      7 
      8 #include "base/compiler_specific.h"
      9 #include "base/memory/scoped_ptr.h"
     10 #include "content/public/browser/web_contents_view_delegate.h"
     11 #include "ui/base/gtk/gtk_signal.h"
     12 #include "ui/base/gtk/scoped_gobject.h"
     13 
     14 class RenderViewContextMenuGtk;
     15 class WebDragBookmarkHandlerGtk;
     16 
     17 namespace content {
     18 class WebContents;
     19 }
     20 
     21 // A chrome/ specific class that extends WebContentsViewGtk with features like
     22 // web contents modal dialogs, which live in chrome/.
     23 class ChromeWebContentsViewDelegateGtk
     24     : public content::WebContentsViewDelegate {
     25  public:
     26   explicit ChromeWebContentsViewDelegateGtk(content::WebContents* web_contents);
     27   virtual ~ChromeWebContentsViewDelegateGtk();
     28 
     29   static ChromeWebContentsViewDelegateGtk* GetFor(
     30       content::WebContents* web_contents);
     31 
     32   GtkWidget* expanded_container() { return expanded_container_; }
     33   ui::FocusStoreGtk* focus_store() { return focus_store_; }
     34 
     35   // Unlike Windows, web contents modal dialogs need to collaborate with the
     36   // WebContentsViewGtk to position the dialogs.
     37   void AttachWebContentsModalDialog(GtkWidget* web_contents_modal_dialog);
     38   void RemoveWebContentsModalDialog(GtkWidget* web_contents_modal_dialog);
     39 
     40   // Overridden from WebContentsViewDelegate:
     41   virtual void ShowContextMenu(
     42       const content::ContextMenuParams& params) OVERRIDE;
     43   virtual content::WebDragDestDelegate* GetDragDestDelegate() OVERRIDE;
     44   virtual void Initialize(GtkWidget* expanded_container,
     45                           ui::FocusStoreGtk* focus_store) OVERRIDE;
     46   virtual gfx::NativeView GetNativeView() const OVERRIDE;
     47   virtual void Focus() OVERRIDE;
     48   virtual gboolean OnNativeViewFocusEvent(GtkWidget* widget,
     49                                           GtkDirectionType type,
     50                                           gboolean* return_value) OVERRIDE;
     51 
     52  private:
     53   // Sets the location of the web contents modal dialogs.
     54   CHROMEGTK_CALLBACK_1(ChromeWebContentsViewDelegateGtk, void,
     55                        OnSetFloatingPosition,
     56                        GtkAllocation*);
     57 
     58   // Contains |expanded_| as its GtkBin member.
     59   ui::ScopedGObject<GtkWidget>::Type floating_;
     60 
     61   // The UI for the web contents modal dialog currently displayed. This is owned
     62   // by WebContents, not the view.
     63   GtkWidget* web_contents_modal_dialog_;
     64 
     65   // The context menu is reset every time we show it, but we keep a pointer to
     66   // between uses so that it won't go out of scope before we're done with it.
     67   scoped_ptr<RenderViewContextMenuGtk> context_menu_;
     68 
     69   // The chrome specific delegate that receives events from WebDragDestGtk.
     70   scoped_ptr<WebDragBookmarkHandlerGtk> bookmark_handler_gtk_;
     71 
     72   content::WebContents* web_contents_;
     73 
     74   GtkWidget* expanded_container_;
     75   ui::FocusStoreGtk* focus_store_;
     76 };
     77 
     78 #endif  // CHROME_BROWSER_UI_GTK_TAB_CONTENTS_CHROME_WEB_CONTENTS_VIEW_DELEGATE_GTK_H_
     79