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// 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 CHROME_BROWSER_WEB_RESOURCE_PROMO_RESOURCE_SERVICE_H_
#define CHROME_BROWSER_WEB_RESOURCE_PROMO_RESOURCE_SERVICE_H_
#pragma once
#include "chrome/browser/web_resource/web_resource_service.h"
class Profile;
class PromoResourceServiceTest;
namespace web_resource {
// Certain promotions should only be shown to certain classes of users. This
// function will change to reflect each kind of promotion.
bool CanShowPromo(Profile* profile);
} // namespace web_resource
// A PromoResourceService fetches data from a web resource server to be used to
// dynamically change the appearance of the New Tab Page. For example, it has
// been used to fetch "tips" to be displayed on the NTP, or to display
// promotional messages to certain groups of Chrome users.
//
// TODO(mirandac): Arrange for a server to be set up specifically for promo
// messages, which have until now been piggybacked onto the old tips server
// structure. (see http://crbug.com/70634 for details.)
class PromoResourceService
: public WebResourceService {
public:
PromoResourceService();
// Unpack the web resource as a custom promo signal. Expects a start and end
// signal, with the promo to be shown in the tooltip of the start signal
// field. Delivery will be in json in the form of:
// {
// "topic": {
// "answers": [
// {
// "answer_id": "1067976",
// "name": "promo_start",
// "question": "1:24",
// "tooltip":
// "Click \u003ca href=http://www.google.com\u003ehere\u003c/a\u003e!",
// "inproduct": "10/8/09 12:00",
// "inproduct_target": null
// },
// {
// "answer_id": "1067976",
// "name": "promo_end",
// "question": "",
// "tooltip": "",
// "inproduct": "10/8/11 12:00",
// "inproduct_target": null
// },
// ...
// ]
// }
// }
//
// Because the promo signal data is piggybacked onto the tip server, the
// values don't exactly correspond with the field names:
//
// For "promo_start" or "promo_end", the date to start or stop showing the
// promotional line is given by the "inproduct" line.
// For "promo_start", the promotional line itself is given in the "tooltip"
// field. The "question" field gives the type of builds that should be shown
// this promo (see the BuildType enum in web_resource_service.cc) and the
// number of hours that each promo group should see it, separated by ":":
// BuildType bitmask : time slice in hours
// For example, "7:24" would indicate that all builds should see the promo,
// and each group should see it for 24 hours.
//
// Public for unit testing.
void UnpackPromoSignal(const DictionaryValue& parsed_json);
// Unpack the promo resource as a custom logo signal. Expects a start and end
// signal. Delivery will be in json in the form of:
// {
// "topic": {
// "answers": [
// {
// "answer_id": "107366",
// "name": "custom_logo_start",
// "question": "",
// "tooltip": "",
// "inproduct": "10/8/09 12:00",
// "inproduct_target": null
// },
// {
// "answer_id": "107366",
// "name": "custom_logo_end",
// "question": "",
// "tooltip": "",
// "inproduct": "10/8/09 12:00",
// "inproduct_target": null
// },
// ...
// ]
// }
// }
//
// Public for unit testing.
void UnpackLogoSignal(const DictionaryValue& parsed_json);
// Default server of dynamically loaded NTP HTML elements.
static const char* kDefaultPromoResourceServer;
private:
friend class PromoResourceServiceTest;
virtual ~PromoResourceService();
virtual void Unpack(const DictionaryValue& parsed_json);
void Init();
// Schedule a notification that a web resource is either going to become
// available or be no longer valid.
void ScheduleNotification(double ms_start_time, double ms_end_time);
// Gets mutable dictionary attached to user's preferences, so that we
// can write resource data back to user's pref file.
DictionaryValue* web_resource_cache_;
// Saved for use in unit testing.
int promo_group_;
DISALLOW_COPY_AND_ASSIGN(PromoResourceService);
};
#endif // CHROME_BROWSER_WEB_RESOURCE_PROMO_RESOURCE_SERVICE_H_
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