most_visited_sites.h revision a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7 
1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_ANDROID_MOST_VISITED_SITES_H_
6#define CHROME_BROWSER_ANDROID_MOST_VISITED_SITES_H_
7
8#include <jni.h>
9
10#include "base/android/scoped_java_ref.h"
11#include "base/compiler_specific.h"
12#include "chrome/browser/profiles/profile.h"
13#include "content/public/browser/notification_observer.h"
14#include "content/public/browser/notification_registrar.h"
15
16// Provides the list of most visited sites and their thumbnails to Java.
17class MostVisitedSites : public content::NotificationObserver {
18 public:
19  explicit MostVisitedSites(Profile* profile);
20  void Destroy(JNIEnv* env, jobject obj);
21  void SetMostVisitedURLsObserver(JNIEnv* env,
22                                  jobject obj,
23                                  jobject j_observer,
24                                  jint num_sites);
25  void GetURLThumbnail(JNIEnv* env,
26                       jobject obj,
27                       jstring url,
28                       jobject j_callback);
29  void BlacklistUrl(JNIEnv* env, jobject obj, jstring j_url);
30
31  // content::NotificationObserver implementation.
32  virtual void Observe(int type,
33                       const content::NotificationSource& source,
34                       const content::NotificationDetails& details) OVERRIDE;
35
36  // Registers JNI methods.
37  static bool Register(JNIEnv* env);
38
39 private:
40  virtual ~MostVisitedSites();
41  void QueryMostVisitedURLs();
42
43  // The profile whose most visited sites will be queried.
44  Profile* profile_;
45
46  // The observer to be notified when the list of most visited sites changes.
47  base::android::ScopedJavaGlobalRef<jobject> observer_;
48
49  // The maximum number of most visited sites to return.
50  int num_sites_;
51
52  content::NotificationRegistrar registrar_;
53
54  DISALLOW_COPY_AND_ASSIGN(MostVisitedSites);
55};
56
57#endif  // CHROME_BROWSER_ANDROID_MOST_VISITED_SITES_H_
58