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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 COMPONENTS_DOM_DISTILLER_CONTENT_BROWSER_WEB_CONTENTS_MAIN_FRAME_OBSERVER_H_
#define COMPONENTS_DOM_DISTILLER_CONTENT_BROWSER_WEB_CONTENTS_MAIN_FRAME_OBSERVER_H_
#include "base/macros.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
namespace dom_distiller {
// Tracks whether DocumentLoadedInFrame has been called for the main frame for
// the current main frame for the given WebContents. It removes itself as an
// observer if the WebContents is destroyed or the render process is gone.
class WebContentsMainFrameObserver
: public content::WebContentsObserver,
public content::WebContentsUserData<WebContentsMainFrameObserver> {
public:
~WebContentsMainFrameObserver() override;
bool is_document_loaded_in_main_frame() {
return is_document_loaded_in_main_frame_;
}
bool is_initialized() { return is_initialized_; }
// content::WebContentsObserver implementation.
void DocumentLoadedInFrame(
content::RenderFrameHost* render_frame_host) override;
void DidNavigateMainFrame(
const content::LoadCommittedDetails& details,
const content::FrameNavigateParams& params) override;
void RenderProcessGone(base::TerminationStatus status) override;
private:
explicit WebContentsMainFrameObserver(content::WebContents* web_contents);
friend class content::WebContentsUserData<WebContentsMainFrameObserver>;
// Removes the observer and clears the WebContents member.
void CleanUp();
// Whether DocumentLoadedInFrame has been called for the tracked WebContents
// for the current main frame. This is cleared when the main frame navigates,
// and set again when DocumentLoadedInFrame is called for the main frame.
bool is_document_loaded_in_main_frame_;
// Whether this object has been correctly initialized. This is set as soon as
// at least one call to DidNavigateMainFrame has happened.
bool is_initialized_;
DISALLOW_COPY_AND_ASSIGN(WebContentsMainFrameObserver);
};
} // namespace dom_distiller
#endif // COMPONENTS_DOM_DISTILLER_CONTENT_BROWSER_WEB_CONTENTS_MAIN_FRAME_OBSERVER_H_
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