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// Copyright (c) 2012 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/ntp/ntp_resource_cache.h"
#include "base/string16.h"
#include "base/string_piece.h"
#include "base/utf_string_conversions.h"
#include "base/values.h"
#include "base/memory/ref_counted_memory.h"
#include "chrome/browser/google/google_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/webui/chrome_url_data_manager.h"
#include "chrome/browser/ui/webui/ntp/new_tab_page_handler.h"
#include "chrome/common/jstemplate_builder.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/notification_service.h"
#include "grit/browser_resources.h"
#include "grit/generated_resources.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
using content::BrowserThread;
namespace {
const char kLearnMoreIncognitoUrl[] =
"https://www.google.com/support/chrome/bin/answer.py?answer=95464";
} // namespace
NTPResourceCache::NTPResourceCache(Profile* profile) : profile_(profile) {}
NTPResourceCache::~NTPResourceCache() {}
RefCountedMemory* NTPResourceCache::GetNewTabHTML(bool is_incognito) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// Android uses same html/css for incognito NTP and normal NTP
if (!new_tab_html_.get())
CreateNewTabHTML();
return new_tab_html_.get();
}
RefCountedMemory* NTPResourceCache::GetNewTabCSS(bool is_incognito) {
// This is used for themes, which are not currently supported on Android.
NOTIMPLEMENTED();
return NULL;
}
void NTPResourceCache::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
// No notifications necessary in Android.
}
void NTPResourceCache::CreateNewTabHTML() {
// TODO(estade): these strings should be defined in their relevant handlers
// (in GetLocalizedValues) and should have more legible names.
// Show the profile name in the title and most visited labels if the current
// profile is not the default.
DictionaryValue localized_strings;
localized_strings.SetBoolean("hasattribution", false);
localized_strings.SetString("title",
l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
localized_strings.SetString("mostvisited",
l10n_util::GetStringUTF16(IDS_NEW_TAB_MOST_VISITED));
localized_strings.SetString("recentlyclosed",
l10n_util::GetStringUTF16(IDS_NEW_TAB_RECENTLY_CLOSED));
NewTabPageHandler::GetLocalizedValues(profile_, &localized_strings);
ChromeURLDataManager::DataSource::SetFontAndTextDirection(&localized_strings);
base::StringPiece new_tab_html(ResourceBundle::GetSharedInstance().
GetRawDataResource(IDR_NEW_TAB_4_HTML));
const char* new_tab_link = kLearnMoreIncognitoUrl;
string16 learnMoreLink = ASCIIToUTF16(
google_util::AppendGoogleLocaleParam(GURL(new_tab_link)).spec());
localized_strings.SetString("content",
l10n_util::GetStringFUTF16(IDS_NEW_TAB_OTR_MESSAGE, learnMoreLink));
// Load the new tab page appropriate for this build.
std::string full_html;
// Inject the template data into the HTML so that it is available before any
// layout is needed.
std::string json_html;
jstemplate_builder::AppendJsonHtml(&localized_strings, &json_html);
static const base::StringPiece template_data_placeholder(
"<!-- template data placeholder -->");
size_t pos = new_tab_html.find(template_data_placeholder);
if (pos != base::StringPiece::npos) {
full_html.assign(new_tab_html.data(), pos);
full_html.append(json_html);
size_t after_offset = pos + template_data_placeholder.size();
full_html.append(new_tab_html.data() + after_offset,
new_tab_html.size() - after_offset);
} else {
NOTREACHED();
full_html.assign(new_tab_html.data(), new_tab_html.size());
}
new_tab_html_ = base::RefCountedString::TakeString(&full_html);
}
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