src/chrome/browser/ui/gtk/tab_contents/chrome_web_contents_view_delegate_gtk.h

   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/gfx/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       content::RenderFrameHost* render_frame_host,
  43       const content::ContextMenuParams& params) OVERRIDE;
  44   virtual content::WebDragDestDelegate* GetDragDestDelegate() OVERRIDE;
  45   virtual void Initialize(GtkWidget* expanded_container,
  46                           ui::FocusStoreGtk* focus_store) OVERRIDE;
  47   virtual gfx::NativeView GetNativeView() const OVERRIDE;
  48   virtual void Focus() OVERRIDE;
  49   virtual gboolean OnNativeViewFocusEvent(GtkWidget* widget,
  50                                           GtkDirectionType type,
  51                                           gboolean* return_value) OVERRIDE;
  52
  53  private:
  54   // Sets the location of the web contents modal dialogs.
  55   CHROMEGTK_CALLBACK_1(ChromeWebContentsViewDelegateGtk, void,
  56                        OnSetFloatingPosition,
  57                        GtkAllocation*);
  58
  59   // Contains |expanded_| as its GtkBin member.
  60   ui::ScopedGObject<GtkWidget>::Type floating_;
  61
  62   // The UI for the web contents modal dialog currently displayed. This is owned
  63   // by WebContents, not the view.
  64   GtkWidget* web_contents_modal_dialog_;
  65
  66   // The context menu is reset every time we show it, but we keep a pointer to
  67   // between uses so that it won't go out of scope before we're done with it.
  68   scoped_ptr<RenderViewContextMenuGtk> context_menu_;
  69
  70   // The chrome specific delegate that receives events from WebDragDestGtk.
  71   scoped_ptr<WebDragBookmarkHandlerGtk> bookmark_handler_gtk_;
  72
  73   content::WebContents* web_contents_;
  74
  75   GtkWidget* expanded_container_;
  76   ui::FocusStoreGtk* focus_store_;
  77 };
  78
  79 #endif  // CHROME_BROWSER_UI_GTK_TAB_CONTENTS_CHROME_WEB_CONTENTS_VIEW_DELEGATE_GTK_H_