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// Copyright (c) 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.
#include "chrome/browser/ui/webui/app_launcher_page_ui.h"
#include "base/memory/ref_counted_memory.h"
#include "base/metrics/histogram.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/webui/app_launcher_login_handler.h"
#include "chrome/browser/ui/webui/metrics_handler.h"
#include "chrome/browser/ui/webui/ntp/app_launcher_handler.h"
#include "chrome/browser/ui/webui/ntp/app_resource_cache_factory.h"
#include "chrome/browser/ui/webui/ntp/core_app_launcher_handler.h"
#include "chrome/browser/ui/webui/ntp/favicon_webui_handler.h"
#include "chrome/browser/ui/webui/ntp/ntp_resource_cache.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/generated_resources.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_ui.h"
#include "extensions/browser/extension_system.h"
#include "grit/theme_resources.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#if defined(ENABLE_THEMES)
#include "chrome/browser/ui/webui/theme_handler.h"
#endif
class ExtensionService;
using content::BrowserThread;
///////////////////////////////////////////////////////////////////////////////
// AppLauncherPageUI
AppLauncherPageUI::AppLauncherPageUI(content::WebUI* web_ui)
: content::WebUIController(web_ui) {
web_ui->OverrideTitle(l10n_util::GetStringUTF16(IDS_APP_LAUNCHER_TAB_TITLE));
if (AppLauncherLoginHandler::ShouldShow(GetProfile()))
web_ui->AddMessageHandler(new AppLauncherLoginHandler());
if (!GetProfile()->IsOffTheRecord()) {
ExtensionService* service =
extensions::ExtensionSystem::Get(GetProfile())->extension_service();
// We should not be launched without an ExtensionService.
DCHECK(service);
web_ui->AddMessageHandler(new AppLauncherHandler(service));
web_ui->AddMessageHandler(new CoreAppLauncherHandler());
web_ui->AddMessageHandler(new FaviconWebUIHandler());
web_ui->AddMessageHandler(new MetricsHandler());
}
#if defined(ENABLE_THEMES)
// The theme handler can require some CPU, so do it after hooking up the most
// visited handler. This allows the DB query for the new tab thumbs to happen
// earlier.
web_ui->AddMessageHandler(new ThemeHandler());
#endif
scoped_ptr<HTMLSource> html_source(
new HTMLSource(GetProfile()->GetOriginalProfile()));
content::URLDataSource::Add(GetProfile(), html_source.release());
}
AppLauncherPageUI::~AppLauncherPageUI() {
}
// static
base::RefCountedMemory* AppLauncherPageUI::GetFaviconResourceBytes(
ui::ScaleFactor scale_factor) {
return ui::ResourceBundle::GetSharedInstance().
LoadDataResourceBytesForScale(IDR_BOOKMARK_BAR_APPS_SHORTCUT,
scale_factor);
}
Profile* AppLauncherPageUI::GetProfile() const {
return Profile::FromWebUI(web_ui());
}
///////////////////////////////////////////////////////////////////////////////
// HTMLSource
AppLauncherPageUI::HTMLSource::HTMLSource(Profile* profile)
: profile_(profile) {
}
std::string AppLauncherPageUI::HTMLSource::GetSource() const {
return chrome::kChromeUIAppLauncherPageHost;
}
void AppLauncherPageUI::HTMLSource::StartDataRequest(
const std::string& path,
int render_process_id,
int render_frame_id,
const content::URLDataSource::GotDataCallback& callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
NTPResourceCache* resource = AppResourceCacheFactory::GetForProfile(profile_);
resource->set_should_show_other_devices_menu(false);
content::RenderProcessHost* render_host =
content::RenderProcessHost::FromID(render_process_id);
NTPResourceCache::WindowType win_type = NTPResourceCache::GetWindowType(
profile_, render_host);
scoped_refptr<base::RefCountedMemory> html_bytes(
resource->GetNewTabHTML(win_type));
callback.Run(html_bytes.get());
}
std::string AppLauncherPageUI::HTMLSource::GetMimeType(
const std::string& resource) const {
return "text/html";
}
bool AppLauncherPageUI::HTMLSource::ShouldReplaceExistingSource() const {
return false;
}
bool AppLauncherPageUI::HTMLSource::ShouldAddContentSecurityPolicy() const {
return false;
}
AppLauncherPageUI::HTMLSource::~HTMLSource() {}
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