chrome/browser/guest_view/web_view/chrome_web_view_guest_delegate.h

   1 // Copyright 2014 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_GUEST_VIEW_WEB_VIEW_CHROME_WEB_VIEW_GUEST_DELEGATE_H_
   6 #define CHROME_BROWSER_GUEST_VIEW_WEB_VIEW_CHROME_WEB_VIEW_GUEST_DELEGATE_H_
   7
   8 #include "chrome/browser/extensions/api/web_view/chrome_web_view_internal_api.h"
   9 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
  10 #include "extensions/browser/guest_view/web_view/web_view_guest_delegate.h"
  11
  12 #if defined(OS_CHROMEOS)
  13 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
  14 #endif
  15
  16 class RenderViewContextMenuBase;
  17
  18 namespace ui {
  19 class SimpleMenuModel;
  20 }  // namespace ui
  21
  22 namespace extensions {
  23
  24 class ChromeWebViewGuestDelegate : public WebViewGuestDelegate {
  25  public :
  26   explicit ChromeWebViewGuestDelegate(WebViewGuest* web_view_guest);
  27   ~ChromeWebViewGuestDelegate() override;
  28
  29   // WebViewGuestDelegate implementation.
  30   bool HandleContextMenu(const content::ContextMenuParams& params) override;
  31   void OnAttachWebViewHelpers(content::WebContents* contents) override;
  32   void OnDidCommitProvisionalLoadForFrame(bool is_main_frame) override;
  33   void OnDidInitialize() override;
  34   void OnDocumentLoadedInFrame(
  35       content::RenderFrameHost* render_frame_host) override;
  36   void OnGuestDestroyed() override;
  37   void OnShowContextMenu(int request_id, const MenuItemVector* items) override;
  38
  39   WebViewGuest* web_view_guest() const { return web_view_guest_; }
  40
  41  private:
  42   content::WebContents* guest_web_contents() const {
  43     return web_view_guest()->web_contents();
  44   }
  45
  46   // Returns the top level items (ignoring submenus) as Value.
  47   static scoped_ptr<base::ListValue> MenuModelToValue(
  48       const ui::SimpleMenuModel& menu_model);
  49
  50   void InjectChromeVoxIfNeeded(content::RenderViewHost* render_view_host);
  51
  52 #if defined(OS_CHROMEOS)
  53   // Notification of a change in the state of an accessibility setting.
  54   void OnAccessibilityStatusChanged(
  55       const chromeos::AccessibilityStatusEventDetails& details);
  56 #endif
  57
  58   // A counter to generate a unique request id for a context menu request.
  59   // We only need the ids to be unique for a given WebViewGuest.
  60   int pending_context_menu_request_id_;
  61
  62   // Set to |true| if ChromeVox was already injected in main frame.
  63   bool chromevox_injected_;
  64
  65   // Holds the RenderViewContextMenuBase that has been built but yet to be
  66   // shown. This is .reset() after ShowContextMenu().
  67   scoped_ptr<RenderViewContextMenuBase> pending_menu_;
  68
  69 #if defined(OS_CHROMEOS)
  70   // Subscription to receive notifications on changes to a11y settings.
  71   scoped_ptr<chromeos::AccessibilityStatusSubscription>
  72       accessibility_subscription_;
  73 #endif
  74
  75   WebViewGuest* const web_view_guest_;
  76
  77   // This is used to ensure pending tasks will not fire after this object is
  78   // destroyed.
  79   base::WeakPtrFactory<ChromeWebViewGuestDelegate> weak_ptr_factory_;
  80
  81   DISALLOW_COPY_AND_ASSIGN(ChromeWebViewGuestDelegate);
  82 };
  83
  84 }  // namespace extensions
  85
  86 #endif  // CHROME_BROWSER_GUEST_VIEW_WEB_VIEW_CHROME_WEB_VIEW_GUEST_DELEGATE_H_
  87