1// Copyright (c) 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#include "chrome/browser/ui/webui/theme_handler.h" 6 7#include "base/values.h" 8#include "chrome/browser/chrome_notification_types.h" 9#include "chrome/browser/profiles/profile.h" 10#include "chrome/browser/themes/theme_service.h" 11#include "chrome/browser/themes/theme_service_factory.h" 12#include "chrome/browser/ui/webui/theme_source.h" 13#include "content/public/browser/notification_service.h" 14#include "content/public/browser/web_ui.h" 15#include "grit/theme_resources.h" 16 17/////////////////////////////////////////////////////////////////////////////// 18// ThemeHandler 19 20ThemeHandler::ThemeHandler() { 21} 22 23ThemeHandler::~ThemeHandler() { 24} 25 26void ThemeHandler::RegisterMessages() { 27 // These are not actual message registrations, but can't be done in the 28 // constructor since they need the web_ui value to be set, which is done 29 // post-construction, but before registering messages. 30 InitializeCSSCaches(); 31 // Listen for theme installation. 32 registrar_.Add(this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED, 33 content::Source<ThemeService>( 34 ThemeServiceFactory::GetForProfile(GetProfile()))); 35} 36 37void ThemeHandler::Observe(int type, 38 const content::NotificationSource& source, 39 const content::NotificationDetails& details) { 40 DCHECK_EQ(chrome::NOTIFICATION_BROWSER_THEME_CHANGED, type); 41 InitializeCSSCaches(); 42 base::FundamentalValue attribution( 43 ThemeServiceFactory::GetForProfile(GetProfile())->HasCustomImage( 44 IDR_THEME_NTP_ATTRIBUTION)); 45 web_ui()->CallJavascriptFunction("ntp.themeChanged", attribution); 46} 47 48void ThemeHandler::InitializeCSSCaches() { 49 Profile* profile = GetProfile(); 50 ThemeSource* theme = new ThemeSource(profile); 51 content::URLDataSource::Add(profile, theme); 52} 53 54Profile* ThemeHandler::GetProfile() const { 55 return Profile::FromWebUI(web_ui()); 56} 57