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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_H_
#define CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_H_
#include "chrome/browser/guest_view/guest_view_base.h"
#include "content/public/browser/render_frame_host.h"
// A GuestView is the templated base class for out-of-process frames in the
// chrome layer. GuestView is templated on its derived type to allow for type-
// safe access. See GuestViewBase for more information.
template <typename T>
class GuestView : public GuestViewBase {
public:
static T* From(int embedder_process_id, int guest_instance_id) {
GuestViewBase* guest =
GuestViewBase::From(embedder_process_id, guest_instance_id);
if (!guest)
return NULL;
return guest->As<T>();
}
static T* FromWebContents(content::WebContents* contents) {
GuestViewBase* guest = GuestViewBase::FromWebContents(contents);
return guest ? guest->As<T>() : NULL;
}
static T* FromFrameID(int render_process_id, int render_frame_id) {
content::RenderFrameHost* render_frame_host =
content::RenderFrameHost::FromID(render_process_id, render_frame_id);
if (!render_frame_host) {
return NULL;
}
content::WebContents* web_contents =
content::WebContents::FromRenderFrameHost(render_frame_host);
return FromWebContents(web_contents);
}
T* GetOpener() const {
GuestViewBase* guest = GuestViewBase::GetOpener();
if (!guest)
return NULL;
return guest->As<T>();
}
void SetOpener(T* opener) {
GuestViewBase::SetOpener(opener);
}
// GuestViewBase implementation.
virtual const char* GetViewType() const OVERRIDE {
return T::Type;
}
protected:
GuestView(content::BrowserContext* browser_context,
int guest_instance_id)
: GuestViewBase(browser_context, guest_instance_id) {}
virtual ~GuestView() {}
private:
DISALLOW_COPY_AND_ASSIGN(GuestView);
};
#endif // CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_H_
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