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 #include "content/public/browser/render_frame_host.h" 10 11 // A GuestView is the templated base class for out-of-process frames in the 12 // chrome layer. GuestView is templated on its derived type to allow for type- 13 // safe access. See GuestViewBase for more information. 14 template <typename T> 15 class GuestView : public GuestViewBase { 16 public: From(int embedder_process_id,int guest_instance_id)17 static T* From(int embedder_process_id, int guest_instance_id) { 18 GuestViewBase* guest = 19 GuestViewBase::From(embedder_process_id, guest_instance_id); 20 if (!guest) 21 return NULL; 22 return guest->As<T>(); 23 } 24 FromWebContents(content::WebContents * contents)25 static T* FromWebContents(content::WebContents* contents) { 26 GuestViewBase* guest = GuestViewBase::FromWebContents(contents); 27 return guest ? guest->As<T>() : NULL; 28 } 29 FromFrameID(int render_process_id,int render_frame_id)30 static T* FromFrameID(int render_process_id, int render_frame_id) { 31 content::RenderFrameHost* render_frame_host = 32 content::RenderFrameHost::FromID(render_process_id, render_frame_id); 33 if (!render_frame_host) { 34 return NULL; 35 } 36 content::WebContents* web_contents = 37 content::WebContents::FromRenderFrameHost(render_frame_host); 38 return FromWebContents(web_contents); 39 } 40 GetOpener()41 T* GetOpener() const { 42 GuestViewBase* guest = GuestViewBase::GetOpener(); 43 if (!guest) 44 return NULL; 45 return guest->As<T>(); 46 } 47 SetOpener(T * opener)48 void SetOpener(T* opener) { 49 GuestViewBase::SetOpener(opener); 50 } 51 52 // GuestViewBase implementation. GetViewType()53 virtual const char* GetViewType() const OVERRIDE { 54 return T::Type; 55 } 56 57 protected: GuestView(int guest_instance_id)58 explicit GuestView(int guest_instance_id) 59 : GuestViewBase(guest_instance_id) {} ~GuestView()60 virtual ~GuestView() {} 61 62 private: 63 DISALLOW_COPY_AND_ASSIGN(GuestView); 64 }; 65 66 #endif // CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_H_ 67