chrome/browser/guest_view/guest_view.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_GUEST_VIEW_H_
   6 #define CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_H_
   7
   8 #include "chrome/browser/guest_view/guest_view_base.h"
   9
  10 template <typename T>
  11 class GuestView : public GuestViewBase {
  12  public:
  13   static T* From(int embedder_process_id, int guest_instance_id) {
  14     GuestViewBase* guest =
  15         GuestViewBase::From(embedder_process_id, guest_instance_id);
  16     if (!guest)
  17       return NULL;
  18     return guest->As<T>();
  19   }
  20
  21   static T* FromWebContents(content::WebContents* contents) {
  22     GuestViewBase* guest = GuestViewBase::FromWebContents(contents);
  23     return guest ? guest->As<T>() : NULL;
  24   }
  25
  26   // GuestViewBase implementation.
  27   virtual const char* GetViewType() const OVERRIDE {
  28     return T::Type;
  29   }
  30
  31  protected:
  32   GuestView(content::WebContents* guest_web_contents,
  33             const std::string& embedder_extension_id,
  34             const base::WeakPtr<GuestViewBase>& opener)
  35       : GuestViewBase(guest_web_contents, embedder_extension_id, opener) {}
  36
  37  private:
  38   DISALLOW_COPY_AND_ASSIGN(GuestView);
  39 };
  40
  41 #endif  // CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_H_