blob: 5161f9b1e4423485da84a5fd7bde153a07f43bbc [file] [log] [blame]
// Copyright 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 <string>
#include <vector>
#include "base/command_line.h"
#include "base/memory/ref_counted_memory.h"
#include "base/strings/string16.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/extensions/extension_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/search/search.h"
#include "chrome/browser/signin/signin_manager_factory.h"
#include "chrome/browser/sync/profile_sync_service_factory.h"
#include "chrome/browser/themes/theme_properties.h"
#include "chrome/browser/themes/theme_service.h"
#include "chrome/browser/themes/theme_service_factory.h"
#include "chrome/browser/ui/app_list/app_list_util.h"
#include "chrome/browser/ui/apps/app_info_dialog.h"
#include "chrome/browser/ui/bookmarks/bookmark_bar_constants.h"
#include "chrome/browser/ui/sync/sync_promo_ui.h"
#include "chrome/browser/ui/webui/app_launcher_login_handler.h"
#include "chrome/browser/ui/webui/ntp/app_launcher_handler.h"
#include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/chromium_strings.h"
#include "chrome/grit/generated_resources.h"
#include "chrome/grit/locale_settings.h"
#include "components/bookmarks/common/bookmark_pref_names.h"
#include "components/browser_sync/browser/profile_sync_service.h"
#include "components/google/core/browser/google_util.h"
#include "components/prefs/pref_service.h"
#include "components/signin/core/browser/signin_manager.h"
#include "components/strings/grit/components_strings.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/render_process_host.h"
#include "extensions/common/extension.h"
#include "extensions/common/extension_urls.h"
#include "grit/browser_resources.h"
#include "grit/components_strings.h"
#include "grit/theme_resources.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/template_expressions.h"
#include "ui/base/theme_provider.h"
#include "ui/base/webui/jstemplate_builder.h"
#include "ui/base/webui/web_ui_util.h"
#include "ui/gfx/animation/animation.h"
#include "ui/gfx/color_utils.h"
#if defined(OS_CHROMEOS)
#include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
#include "chromeos/chromeos_switches.h"
#endif
#if defined(OS_MACOSX)
#include "chrome/browser/platform_util.h"
#endif
using content::BrowserThread;
namespace {
// The URL for the the Learn More page shown on incognito new tab.
const char kLearnMoreIncognitoUrl[] =
#if defined(OS_CHROMEOS)
"https://support.google.com/chromebook/?p=incognito";
#else
"https://support.google.com/chrome/?p=incognito";
#endif
// The URL for the Learn More page shown on guest session new tab.
const char kLearnMoreGuestSessionUrl[] =
#if defined(OS_CHROMEOS)
"https://support.google.com/chromebook/answer/1057090";
#else
"https://support.google.com/chrome/?p=ui_guest";
#endif
std::string SkColorToRGBAString(SkColor color) {
// We convert the alpha using DoubleToString because StringPrintf will use
// locale specific formatters (e.g., use , instead of . in German).
return base::StringPrintf(
"rgba(%d,%d,%d,%s)",
SkColorGetR(color),
SkColorGetG(color),
SkColorGetB(color),
base::DoubleToString(SkColorGetA(color) / 255.0).c_str());
}
// Creates an rgb string for an SkColor, but leaves the alpha blank so that the
// css can fill it in.
std::string SkColorToRGBComponents(SkColor color) {
return base::StringPrintf(
"%d,%d,%d",
SkColorGetR(color),
SkColorGetG(color),
SkColorGetB(color));
}
SkColor GetThemeColor(const ui::ThemeProvider& tp, int id) {
SkColor color = tp.GetColor(id);
// If web contents are being inverted because the system is in high-contrast
// mode, any system theme colors we use must be inverted too to cancel out.
return color_utils::IsInvertedColorScheme() ?
color_utils::InvertColor(color) : color;
}
// Get the CSS string for the background position on the new tab page for the
// states when the bar is attached or detached.
std::string GetNewTabBackgroundCSS(const ui::ThemeProvider& theme_provider,
bool bar_attached) {
// TODO(glen): This is a quick workaround to hide the notused.png image when
// no image is provided - we don't have time right now to figure out why
// this is painting as white.
// http://crbug.com/17593
if (!theme_provider.HasCustomImage(IDR_THEME_NTP_BACKGROUND)) {
return "-64px";
}
int alignment = theme_provider.GetDisplayProperty(
ThemeProperties::NTP_BACKGROUND_ALIGNMENT);
if (bar_attached)
return ThemeProperties::AlignmentToString(alignment);
if (alignment & ThemeProperties::ALIGN_TOP) {
// The bar is detached, so we must offset the background by the bar size
// if it's a top-aligned bar.
int offset = chrome::kNTPBookmarkBarHeight;
if (alignment & ThemeProperties::ALIGN_LEFT)
return "left " + base::IntToString(-offset) + "px";
else if (alignment & ThemeProperties::ALIGN_RIGHT)
return "right " + base::IntToString(-offset) + "px";
return "center " + base::IntToString(-offset) + "px";
}
return ThemeProperties::AlignmentToString(alignment);
}
// How the background image on the new tab page should be tiled (see tiling
// masks in theme_service.h).
std::string GetNewTabBackgroundTilingCSS(
const ui::ThemeProvider& theme_provider) {
int repeat_mode =
theme_provider.GetDisplayProperty(ThemeProperties::NTP_BACKGROUND_TILING);
return ThemeProperties::TilingToString(repeat_mode);
}
} // namespace
NTPResourceCache::NTPResourceCache(Profile* profile)
: profile_(profile), is_swipe_tracking_from_scroll_events_enabled_(false),
should_show_apps_page_(NewTabUI::ShouldShowApps()),
should_show_other_devices_menu_(true) {
registrar_.Add(this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
content::Source<ThemeService>(
ThemeServiceFactory::GetForProfile(profile)));
base::Closure callback = base::Bind(&NTPResourceCache::OnPreferenceChanged,
base::Unretained(this));
// Watch for pref changes that cause us to need to invalidate the HTML cache.
profile_pref_change_registrar_.Init(profile_->GetPrefs());
profile_pref_change_registrar_.Add(bookmarks::prefs::kShowBookmarkBar,
callback);
profile_pref_change_registrar_.Add(prefs::kNtpShownPage, callback);
profile_pref_change_registrar_.Add(prefs::kSignInPromoShowNTPBubble,
callback);
profile_pref_change_registrar_.Add(prefs::kHideWebStoreIcon, callback);
// Some tests don't have a local state.
#if defined(ENABLE_APP_LIST)
if (g_browser_process->local_state()) {
local_state_pref_change_registrar_.Init(g_browser_process->local_state());
local_state_pref_change_registrar_.Add(prefs::kShowAppLauncherPromo,
callback);
local_state_pref_change_registrar_.Add(
prefs::kAppLauncherHasBeenEnabled, callback);
}
#endif
}
NTPResourceCache::~NTPResourceCache() {}
bool NTPResourceCache::NewTabCacheNeedsRefresh() {
#if defined(OS_MACOSX)
// Invalidate if the current value is different from the cached value.
bool is_enabled = platform_util::IsSwipeTrackingFromScrollEventsEnabled();
if (is_enabled != is_swipe_tracking_from_scroll_events_enabled_) {
is_swipe_tracking_from_scroll_events_enabled_ = is_enabled;
return true;
}
#endif
bool should_show_apps_page = NewTabUI::ShouldShowApps();
if (should_show_apps_page != should_show_apps_page_) {
should_show_apps_page_ = should_show_apps_page;
return true;
}
return false;
}
NTPResourceCache::WindowType NTPResourceCache::GetWindowType(
Profile* profile, content::RenderProcessHost* render_host) {
if (profile->IsGuestSession()) {
return GUEST;
} else if (render_host) {
// Sometimes the |profile| is the parent (non-incognito) version of the user
// so we check the |render_host| if it is provided.
if (render_host->GetBrowserContext()->IsOffTheRecord())
return INCOGNITO;
} else if (profile->IsOffTheRecord()) {
return INCOGNITO;
}
return NORMAL;
}
base::RefCountedMemory* NTPResourceCache::GetNewTabHTML(WindowType win_type) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (win_type == GUEST) {
if (!new_tab_guest_html_)
CreateNewTabGuestHTML();
return new_tab_guest_html_.get();
} else if (win_type == INCOGNITO) {
if (!new_tab_incognito_html_)
CreateNewTabIncognitoHTML();
return new_tab_incognito_html_.get();
} else {
// Refresh the cached HTML if necessary.
// NOTE: NewTabCacheNeedsRefresh() must be called every time the new tab
// HTML is fetched, because it needs to initialize cached values.
if (NewTabCacheNeedsRefresh() || !new_tab_html_)
CreateNewTabHTML();
return new_tab_html_.get();
}
}
base::RefCountedMemory* NTPResourceCache::GetNewTabCSS(WindowType win_type) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
// Guest mode doesn't have theme-related CSS.
if (win_type == GUEST)
return nullptr;
if (win_type == INCOGNITO) {
if (!new_tab_incognito_css_)
CreateNewTabIncognitoCSS();
return new_tab_incognito_css_.get();
}
if (!new_tab_css_)
CreateNewTabCSS();
return new_tab_css_.get();
}
void NTPResourceCache::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
// Invalidate the cache.
if (chrome::NOTIFICATION_BROWSER_THEME_CHANGED == type)
Invalidate();
else
NOTREACHED();
}
void NTPResourceCache::OnPreferenceChanged() {
// A change occurred to one of the preferences we care about, so flush the
// cache.
new_tab_incognito_html_ = NULL;
new_tab_html_ = NULL;
new_tab_css_ = NULL;
}
// TODO(dbeam): why must Invalidate() and OnPreferenceChanged() both exist?
void NTPResourceCache::Invalidate() {
new_tab_incognito_html_ = nullptr;
new_tab_html_ = nullptr;
new_tab_incognito_css_ = nullptr;
new_tab_css_ = nullptr;
}
void NTPResourceCache::CreateNewTabIncognitoHTML() {
base::DictionaryValue localized_strings;
localized_strings.SetString("title",
l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
int new_tab_description_ids = IDS_NEW_TAB_OTR_DESCRIPTION;
int new_tab_heading_ids = IDS_NEW_TAB_OTR_HEADING;
int new_tab_link_ids = IDS_NEW_TAB_OTR_LEARN_MORE_LINK;
int new_tab_warning_ids = IDS_NEW_TAB_OTR_MESSAGE_WARNING;
int new_tab_html_idr = IDR_INCOGNITO_TAB_HTML;
const char* new_tab_link = kLearnMoreIncognitoUrl;
if (profile_->IsGuestSession()) {
localized_strings.SetString("guestTabDescription",
l10n_util::GetStringUTF16(new_tab_description_ids));
localized_strings.SetString("guestTabHeading",
l10n_util::GetStringUTF16(new_tab_heading_ids));
} else {
localized_strings.SetString("incognitoTabDescription",
l10n_util::GetStringUTF16(new_tab_description_ids));
localized_strings.SetString("incognitoTabHeading",
l10n_util::GetStringUTF16(new_tab_heading_ids));
localized_strings.SetString("incognitoTabWarning",
l10n_util::GetStringUTF16(new_tab_warning_ids));
}
localized_strings.SetString("learnMore",
l10n_util::GetStringUTF16(new_tab_link_ids));
localized_strings.SetString("learnMoreLink", new_tab_link);
bool bookmark_bar_attached =
profile_->GetPrefs()->GetBoolean(bookmarks::prefs::kShowBookmarkBar);
localized_strings.SetBoolean("bookmarkbarattached", bookmark_bar_attached);
const ui::ThemeProvider& tp =
ThemeService::GetThemeProviderForProfile(profile_);
localized_strings.SetBoolean("hasCustomBackground",
tp.HasCustomImage(IDR_THEME_NTP_BACKGROUND));
const std::string& app_locale = g_browser_process->GetApplicationLocale();
webui::SetLoadTimeDataDefaults(app_locale, &localized_strings);
static const base::StringPiece incognito_tab_html(
ResourceBundle::GetSharedInstance().GetRawDataResource(
new_tab_html_idr));
std::string full_html = webui::GetI18nTemplateHtml(
incognito_tab_html, &localized_strings);
new_tab_incognito_html_ = base::RefCountedString::TakeString(&full_html);
}
void NTPResourceCache::CreateNewTabGuestHTML() {
base::DictionaryValue localized_strings;
localized_strings.SetString("title",
l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
const char* guest_tab_link = kLearnMoreGuestSessionUrl;
int guest_tab_ids = IDR_GUEST_TAB_HTML;
int guest_tab_description_ids = IDS_NEW_TAB_GUEST_SESSION_DESCRIPTION;
int guest_tab_heading_ids = IDS_NEW_TAB_GUEST_SESSION_HEADING;
int guest_tab_link_ids = IDS_NEW_TAB_GUEST_SESSION_LEARN_MORE_LINK;
#if defined(OS_CHROMEOS)
guest_tab_ids = IDR_GUEST_SESSION_TAB_HTML;
policy::BrowserPolicyConnectorChromeOS* connector =
g_browser_process->platform_part()->browser_policy_connector_chromeos();
std::string enterprise_domain = connector->GetEnterpriseDomain();
if (!enterprise_domain.empty()) {
// Device is enterprise enrolled.
localized_strings.SetString("enterpriseInfoVisible", "true");
base::string16 enterprise_info = l10n_util::GetStringFUTF16(
IDS_DEVICE_OWNED_BY_NOTICE,
base::UTF8ToUTF16(enterprise_domain));
localized_strings.SetString("enterpriseInfoMessage", enterprise_info);
localized_strings.SetString("enterpriseLearnMore",
l10n_util::GetStringUTF16(IDS_LEARN_MORE));
localized_strings.SetString("enterpriseInfoHintLink",
chrome::kLearnMoreEnterpriseURL);
} else {
localized_strings.SetString("enterpriseInfoVisible", "false");
}
#endif
localized_strings.SetString("guestTabDescription",
l10n_util::GetStringUTF16(guest_tab_description_ids));
localized_strings.SetString("guestTabHeading",
l10n_util::GetStringUTF16(guest_tab_heading_ids));
localized_strings.SetString("learnMore",
l10n_util::GetStringUTF16(guest_tab_link_ids));
localized_strings.SetString("learnMoreLink", guest_tab_link);
const std::string& app_locale = g_browser_process->GetApplicationLocale();
webui::SetLoadTimeDataDefaults(app_locale, &localized_strings);
static const base::StringPiece guest_tab_html(
ResourceBundle::GetSharedInstance().GetRawDataResource(guest_tab_ids));
std::string full_html = webui::GetI18nTemplateHtml(
guest_tab_html, &localized_strings);
new_tab_guest_html_ = base::RefCountedString::TakeString(&full_html);
}
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.
PrefService* prefs = profile_->GetPrefs();
base::DictionaryValue load_time_data;
load_time_data.SetBoolean("bookmarkbarattached",
prefs->GetBoolean(bookmarks::prefs::kShowBookmarkBar));
load_time_data.SetBoolean("showAppLauncherPromo",
ShouldShowAppLauncherPromo());
load_time_data.SetString("title",
l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
load_time_data.SetString("webStoreTitle",
l10n_util::GetStringUTF16(IDS_EXTENSION_WEB_STORE_TITLE));
load_time_data.SetString("webStoreTitleShort",
l10n_util::GetStringUTF16(IDS_EXTENSION_WEB_STORE_TITLE_SHORT));
load_time_data.SetString("attributionintro",
l10n_util::GetStringUTF16(IDS_NEW_TAB_ATTRIBUTION_INTRO));
load_time_data.SetString("appuninstall",
l10n_util::GetStringUTF16(IDS_EXTENSIONS_UNINSTALL));
load_time_data.SetString("appoptions",
l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_OPTIONS));
load_time_data.SetString("appdetails",
l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_DETAILS));
load_time_data.SetString("appinfodialog",
l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_SHOW_INFO));
load_time_data.SetString("appcreateshortcut",
l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_CREATE_SHORTCUT));
load_time_data.SetString("appDefaultPageName",
l10n_util::GetStringUTF16(IDS_APP_DEFAULT_PAGE_NAME));
load_time_data.SetString("applaunchtypepinned",
l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_PINNED));
load_time_data.SetString("applaunchtyperegular",
l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_REGULAR));
load_time_data.SetString("applaunchtypewindow",
l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_WINDOW));
load_time_data.SetString("applaunchtypefullscreen",
l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_FULLSCREEN));
load_time_data.SetString("syncpromotext",
l10n_util::GetStringUTF16(IDS_SYNC_START_SYNC_BUTTON_LABEL));
load_time_data.SetString("syncLinkText",
l10n_util::GetStringUTF16(IDS_SYNC_ADVANCED_OPTIONS));
load_time_data.SetBoolean("shouldShowSyncLogin",
AppLauncherLoginHandler::ShouldShow(profile_));
load_time_data.SetString("learnMore",
l10n_util::GetStringUTF16(IDS_LEARN_MORE));
const std::string& app_locale = g_browser_process->GetApplicationLocale();
load_time_data.SetString("webStoreLink",
google_util::AppendGoogleLocaleParam(
GURL(extension_urls::GetWebstoreLaunchURL()), app_locale).spec());
load_time_data.SetString("appInstallHintText",
l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_INSTALL_HINT_LABEL));
load_time_data.SetString("learn_more",
l10n_util::GetStringUTF16(IDS_LEARN_MORE));
load_time_data.SetString("tile_grid_screenreader_accessible_description",
l10n_util::GetStringUTF16(IDS_NEW_TAB_TILE_GRID_ACCESSIBLE_DESCRIPTION));
load_time_data.SetString("page_switcher_change_title",
l10n_util::GetStringUTF16(IDS_NEW_TAB_PAGE_SWITCHER_CHANGE_TITLE));
load_time_data.SetString("page_switcher_same_title",
l10n_util::GetStringUTF16(IDS_NEW_TAB_PAGE_SWITCHER_SAME_TITLE));
load_time_data.SetString("appsPromoTitle",
l10n_util::GetStringUTF16(IDS_NEW_TAB_PAGE_APPS_PROMO_TITLE));
// On Mac OS X 10.7+, horizontal scrolling can be treated as a back or
// forward gesture. Pass through a flag that indicates whether or not that
// feature is enabled.
load_time_data.SetBoolean("isSwipeTrackingFromScrollEventsEnabled",
is_swipe_tracking_from_scroll_events_enabled_);
load_time_data.SetBoolean("showApps", should_show_apps_page_);
load_time_data.SetBoolean("showWebStoreIcon",
!prefs->GetBoolean(prefs::kHideWebStoreIcon));
load_time_data.SetBoolean("enableNewBookmarkApps",
extensions::util::IsNewBookmarkAppsEnabled());
load_time_data.SetBoolean("canHostedAppsOpenInWindows",
extensions::util::CanHostedAppsOpenInWindows());
load_time_data.SetBoolean("canShowAppInfoDialog",
CanShowAppInfoDialog());
AppLauncherHandler::GetLocalizedValues(profile_, &load_time_data);
AppLauncherLoginHandler::GetLocalizedValues(profile_, &load_time_data);
webui::SetLoadTimeDataDefaults(app_locale, &load_time_data);
// Control fade and resize animations.
load_time_data.SetBoolean("anim",
gfx::Animation::ShouldRenderRichAnimation());
load_time_data.SetBoolean(
"isUserSignedIn",
SigninManagerFactory::GetForProfile(profile_)->IsAuthenticated());
// Load the new tab page appropriate for this build.
base::StringPiece new_tab_html(ResourceBundle::GetSharedInstance().
GetRawDataResource(IDR_NEW_TAB_4_HTML));
std::string full_html =
webui::GetI18nTemplateHtml(new_tab_html, &load_time_data);
new_tab_html_ = base::RefCountedString::TakeString(&full_html);
}
void NTPResourceCache::CreateNewTabIncognitoCSS() {
// TODO(estade): this returns a subtly incorrect theme provider because
// |profile_| is actually not the incognito profile. See crbug.com/568388
const ui::ThemeProvider& tp =
ThemeService::GetThemeProviderForProfile(profile_);
// Get our theme colors
SkColor color_background =
tp.HasCustomImage(IDR_THEME_NTP_BACKGROUND)
? GetThemeColor(tp, ThemeProperties::COLOR_NTP_BACKGROUND)
: SkColorSetRGB(0x32, 0x32, 0x32);
// Generate the replacements.
ui::TemplateReplacements substitutions;
// Cache-buster for background.
substitutions["themeId"] =
profile_->GetPrefs()->GetString(prefs::kCurrentThemeID);
// Colors.
substitutions["colorBackground"] = SkColorToRGBAString(color_background);
substitutions["backgroundBarDetached"] = GetNewTabBackgroundCSS(tp, false);
substitutions["backgroundBarAttached"] = GetNewTabBackgroundCSS(tp, true);
substitutions["backgroundTiling"] = GetNewTabBackgroundTilingCSS(tp);
// Get our template.
static const base::StringPiece new_tab_theme_css(
ResourceBundle::GetSharedInstance().GetRawDataResource(
IDR_NEW_INCOGNITO_TAB_THEME_CSS));
// Create the string from our template and the replacements.
std::string full_css =
ui::ReplaceTemplateExpressions(new_tab_theme_css, substitutions);
new_tab_incognito_css_ = base::RefCountedString::TakeString(&full_css);
}
void NTPResourceCache::CreateNewTabCSS() {
const ui::ThemeProvider& tp =
ThemeService::GetThemeProviderForProfile(profile_);
// Get our theme colors
SkColor color_background =
GetThemeColor(tp, ThemeProperties::COLOR_NTP_BACKGROUND);
SkColor color_text = GetThemeColor(tp, ThemeProperties::COLOR_NTP_TEXT);
SkColor color_text_light =
GetThemeColor(tp, ThemeProperties::COLOR_NTP_TEXT_LIGHT);
SkColor color_header =
GetThemeColor(tp, ThemeProperties::COLOR_NTP_HEADER);
// Generate a lighter color for the header gradients.
color_utils::HSL header_lighter;
color_utils::SkColorToHSL(color_header, &header_lighter);
header_lighter.l += (1 - header_lighter.l) * 0.33;
// Generate section border color from the header color. See
// BookmarkBarView::Paint for how we do this for the bookmark bar
// borders.
SkColor color_section_border =
SkColorSetARGB(80,
SkColorGetR(color_header),
SkColorGetG(color_header),
SkColorGetB(color_header));
// Generate the replacements.
ui::TemplateReplacements substitutions;
// Cache-buster for background.
substitutions["themeId"] =
profile_->GetPrefs()->GetString(prefs::kCurrentThemeID);
// Colors.
substitutions["colorBackground"] = SkColorToRGBAString(color_background);
substitutions["backgroundBarDetached"] = GetNewTabBackgroundCSS(tp, false);
substitutions["backgroundBarAttached"] = GetNewTabBackgroundCSS(tp, true);
substitutions["backgroundTiling"] = GetNewTabBackgroundTilingCSS(tp);
substitutions["colorTextRgba"] = SkColorToRGBAString(color_text);
substitutions["colorSectionBorder"] =
SkColorToRGBAString(color_section_border);
substitutions["colorTextLight"] = SkColorToRGBAString(color_text_light);
substitutions["colorSectionBorder"] =
SkColorToRGBComponents(color_section_border);
substitutions["colorText"] = SkColorToRGBComponents(color_text);
// For themes that right-align the background, we flip the attribution to the
// left to avoid conflicts.
int alignment =
tp.GetDisplayProperty(ThemeProperties::NTP_BACKGROUND_ALIGNMENT);
if (alignment & ThemeProperties::ALIGN_RIGHT) {
substitutions["leftAlignAttribution"] = "0";
substitutions["rightAlignAttribution"] = "auto";
substitutions["textAlignAttribution"] = "right";
} else {
substitutions["leftAlignAttribution"] = "auto";
substitutions["rightAlignAttribution"] = "0";
substitutions["textAlignAttribution"] = "left";
}
substitutions["displayAttribution"] =
tp.HasCustomImage(IDR_THEME_NTP_ATTRIBUTION) ? "inline" : "none";
// Get our template.
static const base::StringPiece new_tab_theme_css(
ResourceBundle::GetSharedInstance().GetRawDataResource(
IDR_NEW_TAB_4_THEME_CSS));
// Create the string from our template and the replacements.
std::string css_string =
ui::ReplaceTemplateExpressions(new_tab_theme_css, substitutions);
new_tab_css_ = base::RefCountedString::TakeString(&css_string);
}