1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
// Copyright (c) 2012 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_RENDERER_HOST_OFFLINE_RESOURCE_THROTTLE_H_
#define CHROME_BROWSER_RENDERER_HOST_OFFLINE_RESOURCE_THROTTLE_H_
#include <string>
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/chromeos/offline/offline_load_page.h"
#include "content/public/browser/resource_throttle.h"
#include "net/base/completion_callback.h"
namespace content {
class AppCacheService;
}
namespace net {
class URLRequest;
}
// Used to show an offline interstitial page when the network is not available.
class OfflineResourceThrottle
: public content::ResourceThrottle,
public base::SupportsWeakPtr<OfflineResourceThrottle> {
public:
OfflineResourceThrottle(net::URLRequest* request,
content::AppCacheService* appcache_service);
virtual ~OfflineResourceThrottle();
// content::ResourceThrottle implementation:
virtual void WillStartRequest(bool* defer) override;
virtual const char* GetNameForLogging() const override;
private:
void OnBlockingPageComplete(bool proceed);
void ClearRequestInfo();
bool IsRemote(const GURL& url) const;
bool ShouldShowOfflinePage(const GURL& url) const;
void OnCanHandleOfflineComplete(int rv);
net::URLRequest* request_;
// Safe to keep a pointer around since AppCacheService outlives all requests.
content::AppCacheService* appcache_service_;
net::CancelableCompletionCallback completion_callback_;
int pending_callbacks_;
DISALLOW_COPY_AND_ASSIGN(OfflineResourceThrottle);
};
#endif // CHROME_BROWSER_RENDERER_HOST_OFFLINE_RESOURCE_THROTTLE_H_
|
