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
|
// Copyright (c) 2011 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 CONTENT_BROWSER_MEDIA_MEDIA_INTERNALS_HANDLER_H_
#define CONTENT_BROWSER_MEDIA_MEDIA_INTERNALS_HANDLER_H_
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "content/public/browser/web_ui_message_handler.h"
namespace base {
class ListValue;
}
namespace content {
class MediaInternalsProxy;
// This class handles messages to and from MediaInternalsUI.
// It does all its work on the IO thread through the proxy below.
class MediaInternalsMessageHandler : public WebUIMessageHandler {
public:
MediaInternalsMessageHandler();
~MediaInternalsMessageHandler() override;
// WebUIMessageHandler implementation.
void RegisterMessages() override;
// Javascript message handlers.
void OnGetEverything(const base::ListValue* list);
// MediaInternals message handlers.
void OnUpdate(const base::string16& update);
private:
scoped_refptr<MediaInternalsProxy> proxy_;
// Reflects whether the chrome://media-internals HTML+JS has finished loading.
// If not, it's not safe to send JavaScript calls targeting the page yet.
bool page_load_complete_;
DISALLOW_COPY_AND_ASSIGN(MediaInternalsMessageHandler);
};
} // namespace content
#endif // CONTENT_BROWSER_MEDIA_MEDIA_INTERNALS_HANDLER_H_
|
