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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.
#include "chrome/browser/ui/webui/flags_ui.h"
#include <string>
#include "base/memory/singleton.h"
#include "base/utf_string_conversions.h"
#include "base/values.h"
#include "chrome/browser/about_flags.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/webui/chrome_web_ui_data_source.h"
#include "chrome/common/jstemplate_builder.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "content/browser/browser_thread.h"
#include "content/browser/tab_contents/tab_contents.h"
#include "grit/browser_resources.h"
#include "grit/chromium_strings.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources_standard.h"
#include "grit/theme_resources.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#if defined(OS_CHROMEOS)
#include "chrome/browser/chromeos/user_cros_settings_provider.h"
#include "chrome/browser/chromeos/login/user_manager.h"
#endif
namespace {
ChromeWebUIDataSource* CreateFlagsUIHTMLSource() {
ChromeWebUIDataSource* source =
new ChromeWebUIDataSource(chrome::kChromeUIFlagsHost);
source->AddLocalizedString("flagsLongTitle", IDS_FLAGS_LONG_TITLE);
source->AddLocalizedString("flagsTableTitle", IDS_FLAGS_TABLE_TITLE);
source->AddLocalizedString("flagsNoExperimentsAvailable",
IDS_FLAGS_NO_EXPERIMENTS_AVAILABLE);
source->AddLocalizedString("flagsWarningHeader", IDS_FLAGS_WARNING_HEADER);
source->AddLocalizedString("flagsBlurb", IDS_FLAGS_WARNING_TEXT);
#if defined(OS_CHROMEOS)
int ids = IDS_PRODUCT_OS_NAME;
#else
int ids = IDS_PRODUCT_NAME;
#endif
source->AddString("flagsRestartNotice", l10n_util::GetStringFUTF16(
IDS_FLAGS_RELAUNCH_NOTICE, l10n_util::GetStringUTF16(ids)));
source->AddLocalizedString("flagsRestartButton", IDS_FLAGS_RELAUNCH_BUTTON);
source->AddLocalizedString("disable", IDS_FLAGS_DISABLE);
source->AddLocalizedString("enable", IDS_FLAGS_ENABLE);
#if defined(OS_CHROMEOS)
// Set the strings to show which user can actually change the flags
source->AddLocalizedString("ownerOnly", IDS_OPTIONS_ACCOUNTS_OWNER_ONLY);
source->AddString("ownerUserId", UTF8ToUTF16(
chromeos::UserCrosSettingsProvider::cached_owner()));
#endif
source->set_json_path("strings.js");
source->add_resource_path("flags.js", IDR_FLAGS_JS);
int idr = IDR_FLAGS_HTML;
#if defined (OS_CHROMEOS)
if (!chromeos::UserManager::Get()->current_user_is_owner())
idr = IDR_FLAGS_HTML_WARNING;
#endif
source->set_default_resource(idr);
return source;
}
////////////////////////////////////////////////////////////////////////////////
//
// FlagsDOMHandler
//
////////////////////////////////////////////////////////////////////////////////
// The handler for Javascript messages for the about:flags page.
class FlagsDOMHandler : public WebUIMessageHandler {
public:
FlagsDOMHandler() {}
virtual ~FlagsDOMHandler() {}
// WebUIMessageHandler implementation.
virtual void RegisterMessages();
// Callback for the "requestFlagsExperiments" message.
void HandleRequestFlagsExperiments(const ListValue* args);
// Callback for the "enableFlagsExperiment" message.
void HandleEnableFlagsExperimentMessage(const ListValue* args);
// Callback for the "restartBrowser" message. Restores all tabs on restart.
void HandleRestartBrowser(const ListValue* args);
private:
DISALLOW_COPY_AND_ASSIGN(FlagsDOMHandler);
};
void FlagsDOMHandler::RegisterMessages() {
web_ui_->RegisterMessageCallback("requestFlagsExperiments",
NewCallback(this, &FlagsDOMHandler::HandleRequestFlagsExperiments));
web_ui_->RegisterMessageCallback("enableFlagsExperiment",
NewCallback(this, &FlagsDOMHandler::HandleEnableFlagsExperimentMessage));
web_ui_->RegisterMessageCallback("restartBrowser",
NewCallback(this, &FlagsDOMHandler::HandleRestartBrowser));
}
void FlagsDOMHandler::HandleRequestFlagsExperiments(const ListValue* args) {
DictionaryValue results;
results.Set("flagsExperiments",
about_flags::GetFlagsExperimentsData(
g_browser_process->local_state()));
results.SetBoolean("needsRestart",
about_flags::IsRestartNeededToCommitChanges());
web_ui_->CallJavascriptFunction("returnFlagsExperiments", results);
}
void FlagsDOMHandler::HandleEnableFlagsExperimentMessage(
const ListValue* args) {
DCHECK_EQ(2u, args->GetSize());
if (args->GetSize() != 2)
return;
std::string experiment_internal_name;
std::string enable_str;
if (!args->GetString(0, &experiment_internal_name) ||
!args->GetString(1, &enable_str))
return;
about_flags::SetExperimentEnabled(
g_browser_process->local_state(),
experiment_internal_name,
enable_str == "true");
}
void FlagsDOMHandler::HandleRestartBrowser(const ListValue* args) {
BrowserList::AttemptRestart();
}
} // namespace
///////////////////////////////////////////////////////////////////////////////
//
// FlagsUI
//
///////////////////////////////////////////////////////////////////////////////
FlagsUI::FlagsUI(TabContents* contents) : ChromeWebUI(contents) {
AddMessageHandler((new FlagsDOMHandler())->Attach(this));
// Set up the about:flags source.
Profile* profile = Profile::FromBrowserContext(contents->browser_context());
profile->GetChromeURLDataManager()->AddDataSource(CreateFlagsUIHTMLSource());
}
// static
RefCountedMemory* FlagsUI::GetFaviconResourceBytes() {
return ResourceBundle::GetSharedInstance().
LoadDataResourceBytes(IDR_FLAGS);
}
// static
void FlagsUI::RegisterPrefs(PrefService* prefs) {
prefs->RegisterListPref(prefs::kEnabledLabsExperiments);
}
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