blob: 797205aa12038da19ec50d7ae81c583a5c5163aa (
plain)
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
|
// 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 EXTENSIONS_RENDERER_CONTENT_WATCHER_H_
#define EXTENSIONS_RENDERER_CONTENT_WATCHER_H_
#include <string>
#include <vector>
#include "base/macros.h"
#include "third_party/blink/public/platform/web_vector.h"
namespace blink {
class WebString;
}
namespace content {
class RenderFrame;
}
namespace extensions {
// Handles watching the content of WebFrames to notify extensions when they
// match various patterns. This class tracks the set of relevant patterns (set
// by ExtensionMsg_WatchPages) and the set that match on each WebFrame, and
// sends a ExtensionHostMsg_OnWatchedPageChange whenever a RenderFrame's set
// changes.
class ContentWatcher {
public:
ContentWatcher();
~ContentWatcher();
// Handler for ExtensionMsg_WatchPages.
void OnWatchPages(const std::vector<std::string>& css_selectors);
void OnRenderFrameCreated(content::RenderFrame* render_frame);
private:
// If any of these selectors match on a page, we need to send an
// ExtensionHostMsg_OnWatchedPageChange back to the browser.
blink::WebVector<blink::WebString> css_selectors_;
DISALLOW_COPY_AND_ASSIGN(ContentWatcher);
};
} // namespace extensions
#endif // EXTENSIONS_RENDERER_CONTENT_WATCHER_H_
|
