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// Copyright (c) 2009 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.
// This class pulls data from a web resource (such as a JSON feed) which
// has been stored in the user's preferences file. Used mainly
// by the suggestions and tips area of the new tab page.
#ifndef CHROME_BROWSER_DOM_UI_TIPS_HANDLER_H_
#define CHROME_BROWSER_DOM_UI_TIPS_HANDLER_H_
#pragma once
#include <string>
#include "chrome/browser/dom_ui/dom_ui.h"
class DictionaryValue;
class DOMUI;
class PrefService;
class Value;
class TipsHandler : public DOMMessageHandler {
public:
TipsHandler() : tips_cache_(NULL) {}
virtual ~TipsHandler() {}
// DOMMessageHandler implementation and overrides.
virtual DOMMessageHandler* Attach(DOMUI* dom_ui);
virtual void RegisterMessages();
// Callback which pulls tips data from the preferences.
void HandleGetTips(const Value* content);
// Register tips cache with pref service.
static void RegisterUserPrefs(PrefService* prefs);
private:
// Make sure the string we are pushing to the NTP is a valid URL.
bool IsValidURL(const std::wstring& url_string);
// Send a tip to the NTP. tip_type is "tip_html_text" if the tip is from
// the tip server, and "set_homepage_tip" if it's the tip to set the NTP
// as home page.
void SendTip(std::string tip, std::wstring tip_type, int tip_index);
// So we can push data out to the page that has called this handler.
DOMUI* dom_ui_;
// Filled with data from cache in preferences.
DictionaryValue* tips_cache_;
DISALLOW_COPY_AND_ASSIGN(TipsHandler);
};
#endif // CHROME_BROWSER_DOM_UI_TIPS_HANDLER_H_
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