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_find_helper.h"
  10 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
  11 #include "extensions/browser/guest_view/web_view/web_view_guest_delegate.h"
  12
  13 #if defined(OS_CHROMEOS)
  14 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
  15 #endif
  16
  17 class RenderViewContextMenu;
  18
  19 namespace ui {
  20 class SimpleMenuModel;
  21 }  // namespace ui
  22
  23 class ChromeWebViewGuestDelegate : public extensions::WebViewGuestDelegate {
  24  public :
  25   explicit ChromeWebViewGuestDelegate(
  26       extensions::WebViewGuest* web_view_guest);
  27   virtual ~ChromeWebViewGuestDelegate();
  28
  29   // WebViewGuestDelegate implementation.
  30   virtual void Find(
  31       const base::string16& search_text,
  32       const blink::WebFindOptions& options,
  33       extensions::WebViewInternalFindFunction* find_function)
  34           OVERRIDE;
  35   virtual void FindReply(content::WebContents* source,
  36                          int request_id,
  37                          int number_of_matches,
  38                          const gfx::Rect& selection_rect,
  39                          int active_match_ordinal,
  40                          bool final_update) OVERRIDE;
  41   virtual double GetZoom() OVERRIDE;
  42   virtual bool HandleContextMenu(
  43       const content::ContextMenuParams& params) OVERRIDE;
  44   virtual void OnAttachWebViewHelpers(content::WebContents* contents) OVERRIDE;
  45   virtual void OnEmbedderDestroyed() OVERRIDE;
  46   virtual void OnDidCommitProvisionalLoadForFrame(bool is_main_frame) OVERRIDE;
  47   virtual void OnDidInitialize() OVERRIDE;
  48   virtual void OnDocumentLoadedInFrame(
  49       content::RenderFrameHost* render_frame_host) OVERRIDE;
  50   virtual void OnGuestDestroyed() OVERRIDE;
  51   virtual void OnRenderProcessGone() OVERRIDE;
  52   virtual void OnSetZoom(double zoom_factor) OVERRIDE;
  53   virtual void OnShowContextMenu(
  54       int request_id,
  55       const MenuItemVector* items) OVERRIDE;
  56   virtual void StopFinding(content::StopFindAction) OVERRIDE;
  57
  58  private:
  59   friend void extensions::WebViewFindHelper::DispatchFindUpdateEvent(
  60       bool canceled,
  61       bool final_update);
  62
  63   content::WebContents* guest_web_contents() const {
  64     return web_view_guest()->web_contents();
  65   }
  66
  67   // Returns the top level items (ignoring submenus) as Value.
  68   static scoped_ptr<base::ListValue> MenuModelToValue(
  69       const ui::SimpleMenuModel& menu_model);
  70
  71   void InjectChromeVoxIfNeeded(content::RenderViewHost* render_view_host);
  72
  73 #if defined(OS_CHROMEOS)
  74   // Notification of a change in the state of an accessibility setting.
  75   void OnAccessibilityStatusChanged(
  76       const chromeos::AccessibilityStatusEventDetails& details);
  77 #endif
  78
  79   // Handles find requests and replies for the webview find API.
  80   extensions::WebViewFindHelper find_helper_;
  81
  82   // A counter to generate a unique request id for a context menu request.
  83   // We only need the ids to be unique for a given WebViewGuest.
  84   int pending_context_menu_request_id_;
  85
  86   // Set to |true| if ChromeVox was already injected in main frame.
  87   bool chromevox_injected_;
  88
  89   // Stores the current zoom factor.
  90   double current_zoom_factor_;
  91
  92   // Holds the RenderViewContextMenu that has been built but yet to be
  93   // shown. This is .Reset() after ShowContextMenu().
  94   scoped_ptr<RenderViewContextMenu> pending_menu_;
  95
  96 #if defined(OS_CHROMEOS)
  97   // Subscription to receive notifications on changes to a11y settings.
  98   scoped_ptr<chromeos::AccessibilityStatusSubscription>
  99       accessibility_subscription_;
 100 #endif
 101
 102   DISALLOW_COPY_AND_ASSIGN(ChromeWebViewGuestDelegate);
 103 };
 104
 105 #endif  // CHROME_BROWSER_GUEST_VIEW_WEB_VIEW_CHROME_WEB_VIEW_GUEST_DELEGATE_H_
 106