src/chrome/browser/ui/webui/ntp/ntp_resource_cache.cc

   1 // Copyright (c) 2012 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/ntp/ntp_resource_cache.h"
   6
   7 #include <string>
   8 #include <vector>
   9
  10 #include "base/command_line.h"
  11 #include "base/memory/ref_counted_memory.h"
  12 #include "base/prefs/pref_service.h"
  13 #include "base/strings/string16.h"
  14 #include "base/strings/string_number_conversions.h"
  15 #include "base/strings/stringprintf.h"
  16 #include "base/strings/utf_string_conversions.h"
  17 #include "base/values.h"
  18 #include "chrome/browser/browser_process.h"
  19 #include "chrome/browser/chrome_notification_types.h"
  20 #include "chrome/browser/extensions/extension_util.h"
  21 #include "chrome/browser/first_run/first_run.h"
  22 #include "chrome/browser/profiles/profile.h"
  23 #include "chrome/browser/search/search.h"
  24 #include "chrome/browser/sync/profile_sync_service.h"
  25 #include "chrome/browser/sync/profile_sync_service_factory.h"
  26 #include "chrome/browser/themes/theme_properties.h"
  27 #include "chrome/browser/themes/theme_service.h"
  28 #include "chrome/browser/themes/theme_service_factory.h"
  29 #include "chrome/browser/ui/app_list/app_list_util.h"
  30 #include "chrome/browser/ui/bookmarks/bookmark_bar_constants.h"
  31 #include "chrome/browser/ui/sync/sync_promo_ui.h"
  32 #include "chrome/browser/ui/webui/ntp/new_tab_page_handler.h"
  33 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
  34 #include "chrome/browser/ui/webui/ntp/ntp_login_handler.h"
  35 #include "chrome/browser/web_resource/notification_promo.h"
  36 #include "chrome/common/chrome_switches.h"
  37 #include "chrome/common/pref_names.h"
  38 #include "chrome/common/url_constants.h"
  39 #include "chrome/grit/chromium_strings.h"
  40 #include "chrome/grit/generated_resources.h"
  41 #include "chrome/grit/locale_settings.h"
  42 #include "components/google/core/browser/google_util.h"
  43 #include "content/public/browser/browser_thread.h"
  44 #include "content/public/browser/notification_service.h"
  45 #include "content/public/browser/render_process_host.h"
  46 #include "extensions/common/extension.h"
  47 #include "extensions/common/extension_urls.h"
  48 #include "grit/browser_resources.h"
  49 #include "grit/components_strings.h"
  50 #include "grit/theme_resources.h"
  51 #include "ui/base/l10n/l10n_util.h"
  52 #include "ui/base/resource/resource_bundle.h"
  53 #include "ui/base/theme_provider.h"
  54 #include "ui/base/webui/jstemplate_builder.h"
  55 #include "ui/base/webui/web_ui_util.h"
  56 #include "ui/gfx/animation/animation.h"
  57 #include "ui/gfx/color_utils.h"
  58 #include "ui/gfx/sys_color_change_listener.h"
  59
  60 #if defined(OS_CHROMEOS)
  61 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
  62 #include "chromeos/chromeos_switches.h"
  63 #endif
  64
  65 #if defined(OS_MACOSX)
  66 #include "chrome/browser/platform_util.h"
  67 #endif
  68
  69 using content::BrowserThread;
  70
  71 namespace {
  72
  73 // The URL for the the Learn More page shown on incognito new tab.
  74 const char kLearnMoreIncognitoUrl[] =
  75 #if defined(OS_CHROMEOS)
  76     "https://www.google.com/support/chromeos/bin/answer.py?answer=95464";
  77 #else
  78     "https://www.google.com/support/chrome/bin/answer.py?answer=95464";
  79 #endif
  80
  81 // The URL for the Learn More page shown on guest session new tab.
  82 const char kLearnMoreGuestSessionUrl[] =
  83 #if defined(OS_CHROMEOS)
  84     "https://www.google.com/support/chromeos/bin/answer.py?answer=1057090";
  85 #else
  86     "https://support.google.com/chrome/?p=ui_guest";
  87 #endif
  88
  89 std::string SkColorToRGBAString(SkColor color) {
  90   // We convert the alpha using DoubleToString because StringPrintf will use
  91   // locale specific formatters (e.g., use , instead of . in German).
  92   return base::StringPrintf(
  93       "rgba(%d,%d,%d,%s)",
  94       SkColorGetR(color),
  95       SkColorGetG(color),
  96       SkColorGetB(color),
  97       base::DoubleToString(SkColorGetA(color) / 255.0).c_str());
  98 }
  99
 100 // Creates an rgb string for an SkColor, but leaves the alpha blank so that the
 101 // css can fill it in.
 102 std::string SkColorToRGBComponents(SkColor color) {
 103   return base::StringPrintf(
 104       "%d,%d,%d",
 105       SkColorGetR(color),
 106       SkColorGetG(color),
 107       SkColorGetB(color));
 108 }
 109
 110 SkColor GetThemeColor(ui::ThemeProvider* tp, int id) {
 111   SkColor color = tp->GetColor(id);
 112   // If web contents are being inverted because the system is in high-contrast
 113   // mode, any system theme colors we use must be inverted too to cancel out.
 114   return gfx::IsInvertedColorScheme() ?
 115       color_utils::InvertColor(color) : color;
 116 }
 117
 118 // Get the CSS string for the background position on the new tab page for the
 119 // states when the bar is attached or detached.
 120 std::string GetNewTabBackgroundCSS(const ui::ThemeProvider* theme_provider,
 121                                    bool bar_attached) {
 122   // TODO(glen): This is a quick workaround to hide the notused.png image when
 123   // no image is provided - we don't have time right now to figure out why
 124   // this is painting as white.
 125   // http://crbug.com/17593
 126   if (!theme_provider->HasCustomImage(IDR_THEME_NTP_BACKGROUND)) {
 127     return "-64px";
 128   }
 129
 130   int alignment = theme_provider->GetDisplayProperty(
 131       ThemeProperties::NTP_BACKGROUND_ALIGNMENT);
 132
 133   if (bar_attached)
 134     return ThemeProperties::AlignmentToString(alignment);
 135
 136   if (alignment & ThemeProperties::ALIGN_TOP) {
 137     // The bar is detached, so we must offset the background by the bar size
 138     // if it's a top-aligned bar.
 139     int offset = chrome::kNTPBookmarkBarHeight;
 140
 141     if (alignment & ThemeProperties::ALIGN_LEFT)
 142       return "left " + base::IntToString(-offset) + "px";
 143     else if (alignment & ThemeProperties::ALIGN_RIGHT)
 144       return "right " + base::IntToString(-offset) + "px";
 145     return "center " + base::IntToString(-offset) + "px";
 146   }
 147
 148   return ThemeProperties::AlignmentToString(alignment);
 149 }
 150
 151 // How the background image on the new tab page should be tiled (see tiling
 152 // masks in theme_service.h).
 153 std::string GetNewTabBackgroundTilingCSS(
 154     const ui::ThemeProvider* theme_provider) {
 155   int repeat_mode = theme_provider->GetDisplayProperty(
 156       ThemeProperties::NTP_BACKGROUND_TILING);
 157   return ThemeProperties::TilingToString(repeat_mode);
 158 }
 159
 160 }  // namespace
 161
 162 NTPResourceCache::NTPResourceCache(Profile* profile)
 163     : profile_(profile), is_swipe_tracking_from_scroll_events_enabled_(false),
 164       should_show_apps_page_(NewTabUI::ShouldShowApps()),
 165       should_show_most_visited_page_(true),
 166       should_show_other_devices_menu_(true),
 167       should_show_recently_closed_menu_(true) {
 168   registrar_.Add(this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
 169                  content::Source<ThemeService>(
 170                      ThemeServiceFactory::GetForProfile(profile)));
 171   registrar_.Add(this, chrome::NOTIFICATION_PROMO_RESOURCE_STATE_CHANGED,
 172                  content::NotificationService::AllSources());
 173
 174   base::Closure callback = base::Bind(&NTPResourceCache::OnPreferenceChanged,
 175                                       base::Unretained(this));
 176
 177   // Watch for pref changes that cause us to need to invalidate the HTML cache.
 178   profile_pref_change_registrar_.Init(profile_->GetPrefs());
 179   profile_pref_change_registrar_.Add(bookmarks::prefs::kShowBookmarkBar,
 180                                      callback);
 181   profile_pref_change_registrar_.Add(prefs::kNtpShownPage, callback);
 182   profile_pref_change_registrar_.Add(prefs::kSignInPromoShowNTPBubble,
 183                                      callback);
 184   profile_pref_change_registrar_.Add(prefs::kHideWebStoreIcon, callback);
 185
 186   // Some tests don't have a local state.
 187 #if defined(ENABLE_APP_LIST)
 188   if (g_browser_process->local_state()) {
 189     local_state_pref_change_registrar_.Init(g_browser_process->local_state());
 190     local_state_pref_change_registrar_.Add(prefs::kShowAppLauncherPromo,
 191                                            callback);
 192     local_state_pref_change_registrar_.Add(
 193         prefs::kAppLauncherHasBeenEnabled, callback);
 194   }
 195 #endif
 196 }
 197
 198 NTPResourceCache::~NTPResourceCache() {}
 199
 200 bool NTPResourceCache::NewTabCacheNeedsRefresh() {
 201 #if defined(OS_MACOSX)
 202   // Invalidate if the current value is different from the cached value.
 203   bool is_enabled = platform_util::IsSwipeTrackingFromScrollEventsEnabled();
 204   if (is_enabled != is_swipe_tracking_from_scroll_events_enabled_) {
 205     is_swipe_tracking_from_scroll_events_enabled_ = is_enabled;
 206     return true;
 207   }
 208 #endif
 209   bool should_show_apps_page = NewTabUI::ShouldShowApps();
 210   if (should_show_apps_page != should_show_apps_page_) {
 211     should_show_apps_page_ = should_show_apps_page;
 212     return true;
 213   }
 214   return false;
 215 }
 216
 217 NTPResourceCache::WindowType NTPResourceCache::GetWindowType(
 218     Profile* profile, content::RenderProcessHost* render_host) {
 219   if (profile->IsGuestSession()) {
 220     return NTPResourceCache::GUEST;
 221   } else if (render_host) {
 222     // Sometimes the |profile| is the parent (non-incognito) version of the user
 223     // so we check the |render_host| if it is provided.
 224     if (render_host->GetBrowserContext()->IsOffTheRecord())
 225       return NTPResourceCache::INCOGNITO;
 226   } else if (profile->IsOffTheRecord()) {
 227     return NTPResourceCache::INCOGNITO;
 228   }
 229   return NTPResourceCache::NORMAL;
 230 }
 231
 232 base::RefCountedMemory* NTPResourceCache::GetNewTabHTML(WindowType win_type) {
 233   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 234   if (win_type == GUEST) {
 235     if (!new_tab_guest_html_.get())
 236       CreateNewTabGuestHTML();
 237     return new_tab_guest_html_.get();
 238   } else if (win_type == INCOGNITO) {
 239     if (!new_tab_incognito_html_.get())
 240       CreateNewTabIncognitoHTML();
 241     return new_tab_incognito_html_.get();
 242   } else {
 243     // Refresh the cached HTML if necessary.
 244     // NOTE: NewTabCacheNeedsRefresh() must be called every time the new tab
 245     // HTML is fetched, because it needs to initialize cached values.
 246     if (NewTabCacheNeedsRefresh() || !new_tab_html_.get())
 247       CreateNewTabHTML();
 248     return new_tab_html_.get();
 249   }
 250 }
 251
 252 base::RefCountedMemory* NTPResourceCache::GetNewTabCSS(WindowType win_type) {
 253   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 254   if (win_type == GUEST) {
 255     if (!new_tab_guest_css_.get())
 256       CreateNewTabGuestCSS();
 257     return new_tab_guest_css_.get();
 258   } else if (win_type == INCOGNITO) {
 259     if (!new_tab_incognito_css_.get())
 260       CreateNewTabIncognitoCSS();
 261     return new_tab_incognito_css_.get();
 262   } else {
 263     if (!new_tab_css_.get())
 264       CreateNewTabCSS();
 265     return new_tab_css_.get();
 266   }
 267 }
 268
 269 void NTPResourceCache::Observe(int type,
 270                                const content::NotificationSource& source,
 271                                const content::NotificationDetails& details) {
 272   // Invalidate the cache.
 273   if (chrome::NOTIFICATION_BROWSER_THEME_CHANGED == type ||
 274       chrome::NOTIFICATION_PROMO_RESOURCE_STATE_CHANGED == type) {
 275     new_tab_incognito_html_ = NULL;
 276     new_tab_html_ = NULL;
 277     new_tab_incognito_css_ = NULL;
 278     new_tab_css_ = NULL;
 279   } else {
 280     NOTREACHED();
 281   }
 282 }
 283
 284 void NTPResourceCache::OnPreferenceChanged() {
 285   // A change occurred to one of the preferences we care about, so flush the
 286   // cache.
 287   new_tab_incognito_html_ = NULL;
 288   new_tab_html_ = NULL;
 289   new_tab_css_ = NULL;
 290 }
 291
 292 void NTPResourceCache::CreateNewTabIncognitoHTML() {
 293   base::DictionaryValue localized_strings;
 294   localized_strings.SetString("title",
 295       l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
 296   int new_tab_description_ids = IDS_NEW_TAB_OTR_DESCRIPTION;
 297   int new_tab_heading_ids = IDS_NEW_TAB_OTR_HEADING;
 298   int new_tab_link_ids = IDS_NEW_TAB_OTR_LEARN_MORE_LINK;
 299   int new_tab_warning_ids = IDS_NEW_TAB_OTR_MESSAGE_WARNING;
 300   int new_tab_html_idr = IDR_INCOGNITO_TAB_HTML;
 301   const char* new_tab_link = kLearnMoreIncognitoUrl;
 302
 303   if (profile_->IsGuestSession()) {
 304     localized_strings.SetString("guestTabDescription",
 305         l10n_util::GetStringUTF16(new_tab_description_ids));
 306     localized_strings.SetString("guestTabHeading",
 307         l10n_util::GetStringUTF16(new_tab_heading_ids));
 308   } else {
 309     localized_strings.SetString("incognitoTabDescription",
 310         l10n_util::GetStringUTF16(new_tab_description_ids));
 311     localized_strings.SetString("incognitoTabHeading",
 312         l10n_util::GetStringUTF16(new_tab_heading_ids));
 313     localized_strings.SetString("incognitoTabWarning",
 314         l10n_util::GetStringUTF16(new_tab_warning_ids));
 315   }
 316
 317   localized_strings.SetString("learnMore",
 318       l10n_util::GetStringUTF16(new_tab_link_ids));
 319   localized_strings.SetString("learnMoreLink", new_tab_link);
 320
 321   bool bookmark_bar_attached =
 322       profile_->GetPrefs()->GetBoolean(bookmarks::prefs::kShowBookmarkBar);
 323   localized_strings.SetBoolean("bookmarkbarattached", bookmark_bar_attached);
 324
 325   webui::SetFontAndTextDirection(&localized_strings);
 326
 327   static const base::StringPiece incognito_tab_html(
 328       ResourceBundle::GetSharedInstance().GetRawDataResource(
 329           new_tab_html_idr));
 330
 331   std::string full_html = webui::GetI18nTemplateHtml(
 332       incognito_tab_html, &localized_strings);
 333
 334   new_tab_incognito_html_ = base::RefCountedString::TakeString(&full_html);
 335 }
 336
 337 void NTPResourceCache::CreateNewTabGuestHTML() {
 338   base::DictionaryValue localized_strings;
 339   localized_strings.SetString("title",
 340       l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
 341   const char* guest_tab_link = kLearnMoreGuestSessionUrl;
 342   int guest_tab_ids = IDR_GUEST_TAB_HTML;
 343   int guest_tab_description_ids = IDS_NEW_TAB_GUEST_SESSION_DESCRIPTION;
 344   int guest_tab_heading_ids = IDS_NEW_TAB_GUEST_SESSION_HEADING;
 345   int guest_tab_link_ids = IDS_NEW_TAB_GUEST_SESSION_LEARN_MORE_LINK;
 346
 347 #if defined(OS_CHROMEOS)
 348   guest_tab_ids = IDR_GUEST_SESSION_TAB_HTML;
 349
 350   policy::BrowserPolicyConnectorChromeOS* connector =
 351       g_browser_process->platform_part()->browser_policy_connector_chromeos();
 352   std::string enterprise_domain = connector->GetEnterpriseDomain();
 353
 354   if (!enterprise_domain.empty()) {
 355     // Device is enterprise enrolled.
 356     localized_strings.SetString("enterpriseInfoVisible", "true");
 357     base::string16 enterprise_info = l10n_util::GetStringFUTF16(
 358         IDS_DEVICE_OWNED_BY_NOTICE,
 359         base::UTF8ToUTF16(enterprise_domain));
 360     localized_strings.SetString("enterpriseInfoMessage", enterprise_info);
 361     localized_strings.SetString("enterpriseLearnMore",
 362         l10n_util::GetStringUTF16(IDS_LEARN_MORE));
 363     localized_strings.SetString("enterpriseInfoHintLink",
 364                                 chrome::kLearnMoreEnterpriseURL);
 365   } else {
 366     localized_strings.SetString("enterpriseInfoVisible", "false");
 367   }
 368 #endif
 369
 370   localized_strings.SetString("guestTabDescription",
 371       l10n_util::GetStringUTF16(guest_tab_description_ids));
 372   localized_strings.SetString("guestTabHeading",
 373       l10n_util::GetStringUTF16(guest_tab_heading_ids));
 374   localized_strings.SetString("learnMore",
 375       l10n_util::GetStringUTF16(guest_tab_link_ids));
 376   localized_strings.SetString("learnMoreLink", guest_tab_link);
 377
 378   webui::SetFontAndTextDirection(&localized_strings);
 379
 380   static const base::StringPiece guest_tab_html(
 381       ResourceBundle::GetSharedInstance().GetRawDataResource(guest_tab_ids));
 382
 383   std::string full_html = webui::GetI18nTemplateHtml(
 384       guest_tab_html, &localized_strings);
 385
 386   new_tab_guest_html_ = base::RefCountedString::TakeString(&full_html);
 387 }
 388
 389 void NTPResourceCache::CreateNewTabHTML() {
 390   // TODO(estade): these strings should be defined in their relevant handlers
 391   // (in GetLocalizedValues) and should have more legible names.
 392   // Show the profile name in the title and most visited labels if the current
 393   // profile is not the default.
 394   PrefService* prefs = profile_->GetPrefs();
 395   base::DictionaryValue load_time_data;
 396   load_time_data.SetBoolean("bookmarkbarattached",
 397       prefs->GetBoolean(bookmarks::prefs::kShowBookmarkBar));
 398   load_time_data.SetBoolean("hasattribution",
 399       ThemeServiceFactory::GetForProfile(profile_)->HasCustomImage(
 400           IDR_THEME_NTP_ATTRIBUTION));
 401   load_time_data.SetBoolean("showMostvisited", should_show_most_visited_page_);
 402   load_time_data.SetBoolean("showAppLauncherPromo",
 403       ShouldShowAppLauncherPromo());
 404   load_time_data.SetBoolean("showRecentlyClosed",
 405       should_show_recently_closed_menu_);
 406   load_time_data.SetString("title",
 407       l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
 408   load_time_data.SetString("mostvisited",
 409       l10n_util::GetStringUTF16(IDS_NEW_TAB_MOST_VISITED));
 410   load_time_data.SetString("suggestions",
 411       l10n_util::GetStringUTF16(IDS_NEW_TAB_SUGGESTIONS));
 412   load_time_data.SetString("restoreThumbnailsShort",
 413       l10n_util::GetStringUTF16(IDS_NEW_TAB_RESTORE_THUMBNAILS_SHORT_LINK));
 414   load_time_data.SetString("recentlyclosed",
 415       l10n_util::GetStringUTF16(IDS_NEW_TAB_RECENTLY_CLOSED));
 416   load_time_data.SetString("webStoreTitle",
 417       l10n_util::GetStringUTF16(IDS_EXTENSION_WEB_STORE_TITLE));
 418   load_time_data.SetString("webStoreTitleShort",
 419       l10n_util::GetStringUTF16(IDS_EXTENSION_WEB_STORE_TITLE_SHORT));
 420   load_time_data.SetString("closedwindowsingle",
 421       l10n_util::GetStringUTF16(IDS_NEW_TAB_RECENTLY_CLOSED_WINDOW_SINGLE));
 422   load_time_data.SetString("closedwindowmultiple",
 423       l10n_util::GetStringUTF16(IDS_NEW_TAB_RECENTLY_CLOSED_WINDOW_MULTIPLE));
 424   load_time_data.SetString("attributionintro",
 425       l10n_util::GetStringUTF16(IDS_NEW_TAB_ATTRIBUTION_INTRO));
 426   load_time_data.SetString("thumbnailremovednotification",
 427       l10n_util::GetStringUTF16(IDS_NEW_TAB_THUMBNAIL_REMOVED_NOTIFICATION));
 428   load_time_data.SetString("undothumbnailremove",
 429       l10n_util::GetStringUTF16(IDS_NEW_TAB_UNDO_THUMBNAIL_REMOVE));
 430   load_time_data.SetString("removethumbnailtooltip",
 431       l10n_util::GetStringUTF16(IDS_NEW_TAB_REMOVE_THUMBNAIL_TOOLTIP));
 432   load_time_data.SetString("appuninstall",
 433       l10n_util::GetStringUTF16(IDS_EXTENSIONS_UNINSTALL));
 434   load_time_data.SetString("appoptions",
 435       l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_OPTIONS));
 436   load_time_data.SetString("appdetails",
 437       l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_DETAILS));
 438   load_time_data.SetString("appcreateshortcut",
 439       l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_CREATE_SHORTCUT));
 440   load_time_data.SetString("appDefaultPageName",
 441       l10n_util::GetStringUTF16(IDS_APP_DEFAULT_PAGE_NAME));
 442   load_time_data.SetString("applaunchtypepinned",
 443       l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_PINNED));
 444   load_time_data.SetString("applaunchtyperegular",
 445       l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_REGULAR));
 446   load_time_data.SetString("applaunchtypewindow",
 447       l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_WINDOW));
 448   load_time_data.SetString("applaunchtypefullscreen",
 449       l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_FULLSCREEN));
 450   load_time_data.SetString("syncpromotext",
 451       l10n_util::GetStringUTF16(IDS_SYNC_START_SYNC_BUTTON_LABEL));
 452   load_time_data.SetString("syncLinkText",
 453       l10n_util::GetStringUTF16(IDS_SYNC_ADVANCED_OPTIONS));
 454   load_time_data.SetBoolean("shouldShowSyncLogin",
 455                             NTPLoginHandler::ShouldShow(profile_));
 456   load_time_data.SetString("otherSessions",
 457       l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_LABEL));
 458   load_time_data.SetString("otherSessionsEmpty",
 459       l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_EMPTY));
 460   load_time_data.SetString("otherSessionsLearnMoreUrl",
 461       l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_LEARN_MORE_URL));
 462   load_time_data.SetString("learnMore",
 463       l10n_util::GetStringUTF16(IDS_LEARN_MORE));
 464   load_time_data.SetString("webStoreLink",
 465       google_util::AppendGoogleLocaleParam(
 466           GURL(extension_urls::GetWebstoreLaunchURL()),
 467           g_browser_process->GetApplicationLocale()).spec());
 468   load_time_data.SetString("appInstallHintText",
 469       l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_INSTALL_HINT_LABEL));
 470   load_time_data.SetBoolean("isDiscoveryInNTPEnabled",
 471       NewTabUI::IsDiscoveryInNTPEnabled());
 472   load_time_data.SetString("collapseSessionMenuItemText",
 473       l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_COLLAPSE_SESSION));
 474   load_time_data.SetString("expandSessionMenuItemText",
 475       l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_EXPAND_SESSION));
 476   load_time_data.SetString("restoreSessionMenuItemText",
 477       l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_OPEN_ALL));
 478   load_time_data.SetString("learn_more",
 479       l10n_util::GetStringUTF16(IDS_LEARN_MORE));
 480   load_time_data.SetString("tile_grid_screenreader_accessible_description",
 481       l10n_util::GetStringUTF16(IDS_NEW_TAB_TILE_GRID_ACCESSIBLE_DESCRIPTION));
 482   load_time_data.SetString("page_switcher_change_title",
 483       l10n_util::GetStringUTF16(IDS_NEW_TAB_PAGE_SWITCHER_CHANGE_TITLE));
 484   load_time_data.SetString("page_switcher_same_title",
 485       l10n_util::GetStringUTF16(IDS_NEW_TAB_PAGE_SWITCHER_SAME_TITLE));
 486   load_time_data.SetString("appsPromoTitle",
 487       l10n_util::GetStringUTF16(IDS_NEW_TAB_PAGE_APPS_PROMO_TITLE));
 488   // On Mac OS X 10.7+, horizontal scrolling can be treated as a back or
 489   // forward gesture. Pass through a flag that indicates whether or not that
 490   // feature is enabled.
 491   load_time_data.SetBoolean("isSwipeTrackingFromScrollEventsEnabled",
 492                             is_swipe_tracking_from_scroll_events_enabled_);
 493
 494   load_time_data.SetBoolean("showApps", should_show_apps_page_);
 495   load_time_data.SetBoolean("showWebStoreIcon",
 496                             !prefs->GetBoolean(prefs::kHideWebStoreIcon));
 497
 498   bool streamlined_hosted_apps =
 499       extensions::util::IsStreamlinedHostedAppsEnabled();
 500   load_time_data.SetBoolean("enableStreamlinedHostedApps",
 501                             streamlined_hosted_apps);
 502   // Use a different string for launching as a regular tab for streamlined
 503   // hosted apps.
 504   if (streamlined_hosted_apps) {
 505     load_time_data.SetString("applaunchtypetab",
 506         l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_TAB));
 507   }
 508
 509 #if defined(OS_CHROMEOS)
 510   load_time_data.SetString("expandMenu",
 511       l10n_util::GetStringUTF16(IDS_NEW_TAB_CLOSE_MENU_EXPAND));
 512 #endif
 513
 514   NewTabPageHandler::GetLocalizedValues(profile_, &load_time_data);
 515   NTPLoginHandler::GetLocalizedValues(profile_, &load_time_data);
 516
 517   webui::SetFontAndTextDirection(&load_time_data);
 518
 519   // Control fade and resize animations.
 520   load_time_data.SetBoolean("anim",
 521                             gfx::Animation::ShouldRenderRichAnimation());
 522
 523   ui::ThemeProvider* tp = ThemeServiceFactory::GetForProfile(profile_);
 524   int alignment = tp->GetDisplayProperty(
 525       ThemeProperties::NTP_BACKGROUND_ALIGNMENT);
 526   load_time_data.SetString("themegravity",
 527       (alignment & ThemeProperties::ALIGN_RIGHT) ? "right" : "");
 528
 529   // Disable the promo if this is the first run, otherwise set the promo string
 530   // for display if there is a valid outstanding promo.
 531   if (first_run::IsChromeFirstRun()) {
 532     NotificationPromo::HandleClosed(NotificationPromo::NTP_NOTIFICATION_PROMO);
 533   } else {
 534     NotificationPromo notification_promo;
 535     notification_promo.InitFromPrefs(NotificationPromo::NTP_NOTIFICATION_PROMO);
 536     if (notification_promo.CanShow()) {
 537       load_time_data.SetString("notificationPromoText",
 538                                notification_promo.promo_text());
 539       DVLOG(1) << "Notification promo:" << notification_promo.promo_text();
 540     }
 541
 542     NotificationPromo bubble_promo;
 543     bubble_promo.InitFromPrefs(NotificationPromo::NTP_BUBBLE_PROMO);
 544     if (bubble_promo.CanShow()) {
 545       load_time_data.SetString("bubblePromoText",
 546                                bubble_promo.promo_text());
 547       DVLOG(1) << "Bubble promo:" << bubble_promo.promo_text();
 548     }
 549   }
 550
 551   // Determine whether to show the menu for accessing tabs on other devices.
 552   bool show_other_sessions_menu = should_show_other_devices_menu_ &&
 553       !CommandLine::ForCurrentProcess()->HasSwitch(
 554           switches::kDisableNTPOtherSessionsMenu);
 555   load_time_data.SetBoolean("showOtherSessionsMenu", show_other_sessions_menu);
 556   load_time_data.SetBoolean("isUserSignedIn",
 557       !prefs->GetString(prefs::kGoogleServicesUsername).empty());
 558
 559   // Load the new tab page appropriate for this build.
 560   base::StringPiece new_tab_html(ResourceBundle::GetSharedInstance().
 561       GetRawDataResource(IDR_NEW_TAB_4_HTML));
 562   std::string full_html =
 563       webui::GetI18nTemplateHtml(new_tab_html, &load_time_data);
 564   new_tab_html_ = base::RefCountedString::TakeString(&full_html);
 565 }
 566
 567 void NTPResourceCache::CreateNewTabIncognitoCSS() {
 568   ui::ThemeProvider* tp = ThemeServiceFactory::GetForProfile(profile_);
 569   DCHECK(tp);
 570
 571   // Get our theme colors
 572   SkColor color_background =
 573       GetThemeColor(tp, ThemeProperties::COLOR_NTP_BACKGROUND);
 574
 575   // Generate the replacements.
 576   std::vector<std::string> subst;
 577
 578   // Cache-buster for background.
 579   subst.push_back(
 580       profile_->GetPrefs()->GetString(prefs::kCurrentThemeID));  // $1
 581
 582   // Colors.
 583   subst.push_back(SkColorToRGBAString(color_background));  // $2
 584   subst.push_back(GetNewTabBackgroundCSS(tp, false));  // $3
 585   subst.push_back(GetNewTabBackgroundCSS(tp, true));  // $4
 586   subst.push_back(GetNewTabBackgroundTilingCSS(tp));  // $5
 587
 588   // Get our template.
 589   static const base::StringPiece new_tab_theme_css(
 590       ResourceBundle::GetSharedInstance().GetRawDataResource(
 591           IDR_NEW_INCOGNITO_TAB_THEME_CSS));
 592
 593   // Create the string from our template and the replacements.
 594   std::string full_css = ReplaceStringPlaceholders(
 595       new_tab_theme_css, subst, NULL);
 596
 597   new_tab_incognito_css_ = base::RefCountedString::TakeString(&full_css);
 598 }
 599
 600 void NTPResourceCache::CreateNewTabGuestCSS() {
 601   ui::ThemeProvider* tp = ThemeServiceFactory::GetForProfile(profile_);
 602   DCHECK(tp);
 603
 604   // Get our theme colors
 605   SkColor color_background =
 606       GetThemeColor(tp, ThemeProperties::COLOR_NTP_BACKGROUND);
 607
 608   // Generate the replacements.
 609   std::vector<std::string> subst;
 610
 611   // Cache-buster for background.
 612   subst.push_back(
 613       profile_->GetPrefs()->GetString(prefs::kCurrentThemeID));  // $1
 614
 615   // Colors.
 616   subst.push_back(SkColorToRGBAString(color_background));  // $2
 617   subst.push_back(GetNewTabBackgroundCSS(tp, false));  // $3
 618   subst.push_back(GetNewTabBackgroundCSS(tp, true));  // $4
 619   subst.push_back(GetNewTabBackgroundTilingCSS(tp));  // $5
 620
 621   // Get our template.
 622   static const base::StringPiece new_tab_theme_css(
 623       ResourceBundle::GetSharedInstance().GetRawDataResource(
 624           IDR_NEW_GUEST_TAB_THEME_CSS));
 625
 626   // Create the string from our template and the replacements.
 627   std::string full_css = ReplaceStringPlaceholders(
 628       new_tab_theme_css, subst, NULL);
 629
 630   new_tab_guest_css_ = base::RefCountedString::TakeString(&full_css);
 631 }
 632
 633 void NTPResourceCache::CreateNewTabCSS() {
 634   ui::ThemeProvider* tp = ThemeServiceFactory::GetForProfile(profile_);
 635   DCHECK(tp);
 636
 637   // Get our theme colors
 638   SkColor color_background =
 639       GetThemeColor(tp, ThemeProperties::COLOR_NTP_BACKGROUND);
 640   SkColor color_text = GetThemeColor(tp, ThemeProperties::COLOR_NTP_TEXT);
 641   SkColor color_link = GetThemeColor(tp, ThemeProperties::COLOR_NTP_LINK);
 642   SkColor color_link_underline =
 643       GetThemeColor(tp, ThemeProperties::COLOR_NTP_LINK_UNDERLINE);
 644
 645   SkColor color_section =
 646       GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION);
 647   SkColor color_section_text =
 648       GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_TEXT);
 649   SkColor color_section_link =
 650       GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_LINK);
 651   SkColor color_section_link_underline =
 652       GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_LINK_UNDERLINE);
 653   SkColor color_section_header_text =
 654       GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_HEADER_TEXT);
 655   SkColor color_section_header_text_hover =
 656       GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_HEADER_TEXT_HOVER);
 657   SkColor color_section_header_rule =
 658       GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_HEADER_RULE);
 659   SkColor color_section_header_rule_light =
 660       GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_HEADER_RULE_LIGHT);
 661   SkColor color_text_light =
 662       GetThemeColor(tp, ThemeProperties::COLOR_NTP_TEXT_LIGHT);
 663
 664   SkColor color_header =
 665       GetThemeColor(tp, ThemeProperties::COLOR_NTP_HEADER);
 666   // Generate a lighter color for the header gradients.
 667   color_utils::HSL header_lighter;
 668   color_utils::SkColorToHSL(color_header, &header_lighter);
 669   header_lighter.l += (1 - header_lighter.l) * 0.33;
 670   SkColor color_header_gradient_light =
 671       color_utils::HSLToSkColor(header_lighter, SkColorGetA(color_header));
 672
 673   // Generate section border color from the header color. See
 674   // BookmarkBarView::Paint for how we do this for the bookmark bar
 675   // borders.
 676   SkColor color_section_border =
 677       SkColorSetARGB(80,
 678                      SkColorGetR(color_header),
 679                      SkColorGetG(color_header),
 680                      SkColorGetB(color_header));
 681
 682   // Generate the replacements.
 683   std::vector<std::string> subst;
 684
 685   // Cache-buster for background.
 686   subst.push_back(
 687       profile_->GetPrefs()->GetString(prefs::kCurrentThemeID));  // $1
 688
 689   // Colors.
 690   subst.push_back(SkColorToRGBAString(color_background));  // $2
 691   subst.push_back(GetNewTabBackgroundCSS(tp, false));  // $3
 692   subst.push_back(GetNewTabBackgroundCSS(tp, true));  // $4
 693   subst.push_back(GetNewTabBackgroundTilingCSS(tp));  // $5
 694   subst.push_back(SkColorToRGBAString(color_header));  // $6
 695   subst.push_back(SkColorToRGBAString(color_header_gradient_light));  // $7
 696   subst.push_back(SkColorToRGBAString(color_text));  // $8
 697   subst.push_back(SkColorToRGBAString(color_link));  // $9
 698   subst.push_back(SkColorToRGBAString(color_section));  // $10
 699   subst.push_back(SkColorToRGBAString(color_section_border));  // $11
 700   subst.push_back(SkColorToRGBAString(color_section_text));  // $12
 701   subst.push_back(SkColorToRGBAString(color_section_link));  // $13
 702   subst.push_back(SkColorToRGBAString(color_link_underline));  // $14
 703   subst.push_back(SkColorToRGBAString(color_section_link_underline));  // $15
 704   subst.push_back(SkColorToRGBAString(color_section_header_text));  // $16
 705   subst.push_back(SkColorToRGBAString(
 706       color_section_header_text_hover));  // $17
 707   subst.push_back(SkColorToRGBAString(color_section_header_rule));  // $18
 708   subst.push_back(SkColorToRGBAString(
 709       color_section_header_rule_light));  // $19
 710   subst.push_back(SkColorToRGBAString(
 711       SkColorSetA(color_section_header_rule, 0)));  // $20
 712   subst.push_back(SkColorToRGBAString(color_text_light));  // $21
 713   subst.push_back(SkColorToRGBComponents(color_section_border));  // $22
 714   subst.push_back(SkColorToRGBComponents(color_text));  // $23
 715
 716   // Get our template.
 717   static const base::StringPiece new_tab_theme_css(
 718       ResourceBundle::GetSharedInstance().GetRawDataResource(
 719           IDR_NEW_TAB_4_THEME_CSS));
 720
 721   // Create the string from our template and the replacements.
 722   std::string css_string;
 723   css_string = ReplaceStringPlaceholders(new_tab_theme_css, subst, NULL);
 724   new_tab_css_ = base::RefCountedString::TakeString(&css_string);
 725 }