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// Copyright 2013 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_ANDROID_MOST_VISITED_SITES_H_
#define CHROME_BROWSER_ANDROID_MOST_VISITED_SITES_H_
#include <jni.h>
#include "base/android/scoped_java_ref.h"
#include "base/compiler_specific.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/history/history_types.h"
#include "chrome/browser/profiles/profile.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
namespace suggestions {
class SuggestionsProfile;
}
// Provides the list of most visited sites and their thumbnails to Java.
class MostVisitedSites : public content::NotificationObserver {
public:
explicit MostVisitedSites(Profile* profile);
void Destroy(JNIEnv* env, jobject obj);
void SetMostVisitedURLsObserver(JNIEnv* env,
jobject obj,
jobject j_observer,
jint num_sites);
void GetURLThumbnail(JNIEnv* env,
jobject obj,
jstring url,
jobject j_callback);
void BlacklistUrl(JNIEnv* env, jobject obj, jstring j_url);
// content::NotificationObserver implementation.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
// Registers JNI methods.
static bool Register(JNIEnv* env);
private:
virtual ~MostVisitedSites();
void QueryMostVisitedURLs();
// Initialize the query to Top Sites. Called if the SuggestionsService is not
// enabled, or if it returns no data.
void InitiateTopSitesQuery();
// Callback for when data is available from TopSites.
void OnMostVisitedURLsAvailable(
base::android::ScopedJavaGlobalRef<jobject>* j_observer,
int num_sites,
const history::MostVisitedURLList& visited_list);
// Callback for when data is available from the SuggestionsService.
void OnSuggestionsProfileAvailable(
base::android::ScopedJavaGlobalRef<jobject>* j_observer,
const suggestions::SuggestionsProfile& suggestions_profile);
// The profile whose most visited sites will be queried.
Profile* profile_;
// The observer to be notified when the list of most visited sites changes.
base::android::ScopedJavaGlobalRef<jobject> observer_;
// The maximum number of most visited sites to return.
int num_sites_;
// For callbacks may be run after destruction.
base::WeakPtrFactory<MostVisitedSites> weak_ptr_factory_;
content::NotificationRegistrar registrar_;
// The source of the Most Visited sites.
enum MostVisitedSource {
TOP_SITES,
SUGGESTIONS_SERVICE
};
MostVisitedSource mv_source_;
DISALLOW_COPY_AND_ASSIGN(MostVisitedSites);
};
#endif // CHROME_BROWSER_ANDROID_MOST_VISITED_SITES_H_
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