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// Copyright 2017 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 CHROMECAST_BROWSER_CAST_WEB_CONTENTS_MANAGER_H_
#define CHROMECAST_BROWSER_CAST_WEB_CONTENTS_MANAGER_H_
#include <memory>
#include "base/containers/flat_set.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "chromecast/browser/cast_web_view.h"
namespace base {
class SequencedTaskRunner;
} // namespace base
namespace content {
class BrowserContext;
class WebContents;
} // namespace content
namespace chromecast {
// This class dispenses CastWebView objects which are used to wrap WebContents
// in cast_shell. This class can take ownership of a WebContents instance when
// the page is in the process of tearing down; we cannot simply post a delayed
// task since WebContents may try to use browser objects that get deleted as a
// result of browser shutdown.
class CastWebContentsManager {
public:
explicit CastWebContentsManager(content::BrowserContext* browser_context);
~CastWebContentsManager();
std::unique_ptr<CastWebView> CreateWebView(
CastWebView::Delegate* delegate,
scoped_refptr<content::SiteInstance> site_instance,
bool transparent,
bool allow_media_access,
bool is_headless,
bool enable_touch_input);
// Take ownership of |web_contents| and delete after |time_delta|, or sooner
// if necessary.
void DelayWebContentsDeletion(
std::unique_ptr<content::WebContents> web_contents,
base::TimeDelta time_delta);
private:
void DeleteWebContents(content::WebContents* web_contents);
content::BrowserContext* const browser_context_;
base::flat_set<std::unique_ptr<content::WebContents>> expiring_web_contents_;
const scoped_refptr<base::SequencedTaskRunner> task_runner_;
SEQUENCE_CHECKER(sequence_checker_);
base::WeakPtrFactory<CastWebContentsManager> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(CastWebContentsManager);
};
} // namespace chromecast
#endif // CHROMECAST_BROWSER_CAST_WEB_CONTENTS_MANAGER_H_