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/ui/webui/sync_setup_handler.h"
36 #include "chrome/browser/web_resource/notification_promo.h"
37 #include "chrome/common/chrome_switches.h"
38 #include "chrome/common/pref_names.h"
39 #include "chrome/common/url_constants.h"
40 #include "chrome/grit/chromium_strings.h"
41 #include "chrome/grit/generated_resources.h"
42 #include "chrome/grit/locale_settings.h"
43 #include "components/google/core/browser/google_util.h"
44 #include "content/public/browser/browser_thread.h"
45 #include "content/public/browser/notification_service.h"
46 #include "content/public/browser/render_process_host.h"
47 #include "extensions/common/extension.h"
48 #include "extensions/common/extension_urls.h"
49 #include "grit/browser_resources.h"
50 #include "grit/components_strings.h"
51 #include "grit/theme_resources.h"
52 #include "ui/base/l10n/l10n_util.h"
53 #include "ui/base/resource/resource_bundle.h"
54 #include "ui/base/theme_provider.h"
55 #include "ui/base/webui/jstemplate_builder.h"
56 #include "ui/base/webui/web_ui_util.h"
57 #include "ui/gfx/animation/animation.h"
58 #include "ui/gfx/color_utils.h"
59 #include "ui/gfx/sys_color_change_listener.h"
60
61 #if defined(OS_CHROMEOS)
62 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
63 #include "chromeos/chromeos_switches.h"
64 #endif
65
66 #if defined(OS_MACOSX)
67 #include "chrome/browser/platform_util.h"
68 #endif
69
70 using content::BrowserThread;
71
72 namespace {
73
74 // The URL for the the Learn More page shown on incognito new tab.
75 const char kLearnMoreIncognitoUrl[] =
76 #if defined(OS_CHROMEOS)
77 "https://www.google.com/support/chromeos/bin/answer.py?answer=95464";
78 #else
79 "https://www.google.com/support/chrome/bin/answer.py?answer=95464";
80 #endif
81
82 // The URL for the Learn More page shown on guest session new tab.
83 const char kLearnMoreGuestSessionUrl[] =
84 "https://www.google.com/support/chromeos/bin/answer.py?answer=1057090";
85
SkColorToRGBAString(SkColor color)86 std::string SkColorToRGBAString(SkColor color) {
87 // We convert the alpha using DoubleToString because StringPrintf will use
88 // locale specific formatters (e.g., use , instead of . in German).
89 return base::StringPrintf(
90 "rgba(%d,%d,%d,%s)",
91 SkColorGetR(color),
92 SkColorGetG(color),
93 SkColorGetB(color),
94 base::DoubleToString(SkColorGetA(color) / 255.0).c_str());
95 }
96
97 // Creates an rgb string for an SkColor, but leaves the alpha blank so that the
98 // css can fill it in.
SkColorToRGBComponents(SkColor color)99 std::string SkColorToRGBComponents(SkColor color) {
100 return base::StringPrintf(
101 "%d,%d,%d",
102 SkColorGetR(color),
103 SkColorGetG(color),
104 SkColorGetB(color));
105 }
106
GetThemeColor(ui::ThemeProvider * tp,int id)107 SkColor GetThemeColor(ui::ThemeProvider* tp, int id) {
108 SkColor color = tp->GetColor(id);
109 // If web contents are being inverted because the system is in high-contrast
110 // mode, any system theme colors we use must be inverted too to cancel out.
111 return gfx::IsInvertedColorScheme() ?
112 color_utils::InvertColor(color) : color;
113 }
114
115 // Get the CSS string for the background position on the new tab page for the
116 // states when the bar is attached or detached.
GetNewTabBackgroundCSS(const ui::ThemeProvider * theme_provider,bool bar_attached)117 std::string GetNewTabBackgroundCSS(const ui::ThemeProvider* theme_provider,
118 bool bar_attached) {
119 // TODO(glen): This is a quick workaround to hide the notused.png image when
120 // no image is provided - we don't have time right now to figure out why
121 // this is painting as white.
122 // http://crbug.com/17593
123 if (!theme_provider->HasCustomImage(IDR_THEME_NTP_BACKGROUND)) {
124 return "-64px";
125 }
126
127 int alignment = theme_provider->GetDisplayProperty(
128 ThemeProperties::NTP_BACKGROUND_ALIGNMENT);
129
130 if (bar_attached)
131 return ThemeProperties::AlignmentToString(alignment);
132
133 if (alignment & ThemeProperties::ALIGN_TOP) {
134 // The bar is detached, so we must offset the background by the bar size
135 // if it's a top-aligned bar.
136 int offset = chrome::kNTPBookmarkBarHeight;
137
138 if (alignment & ThemeProperties::ALIGN_LEFT)
139 return "left " + base::IntToString(-offset) + "px";
140 else if (alignment & ThemeProperties::ALIGN_RIGHT)
141 return "right " + base::IntToString(-offset) + "px";
142 return "center " + base::IntToString(-offset) + "px";
143 }
144
145 return ThemeProperties::AlignmentToString(alignment);
146 }
147
148 // How the background image on the new tab page should be tiled (see tiling
149 // masks in theme_service.h).
GetNewTabBackgroundTilingCSS(const ui::ThemeProvider * theme_provider)150 std::string GetNewTabBackgroundTilingCSS(
151 const ui::ThemeProvider* theme_provider) {
152 int repeat_mode = theme_provider->GetDisplayProperty(
153 ThemeProperties::NTP_BACKGROUND_TILING);
154 return ThemeProperties::TilingToString(repeat_mode);
155 }
156
157 } // namespace
158
NTPResourceCache(Profile * profile)159 NTPResourceCache::NTPResourceCache(Profile* profile)
160 : profile_(profile), is_swipe_tracking_from_scroll_events_enabled_(false),
161 should_show_apps_page_(NewTabUI::ShouldShowApps()),
162 should_show_most_visited_page_(true),
163 should_show_other_devices_menu_(true),
164 should_show_recently_closed_menu_(true) {
165 registrar_.Add(this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
166 content::Source<ThemeService>(
167 ThemeServiceFactory::GetForProfile(profile)));
168 registrar_.Add(this, chrome::NOTIFICATION_PROMO_RESOURCE_STATE_CHANGED,
169 content::NotificationService::AllSources());
170
171 base::Closure callback = base::Bind(&NTPResourceCache::OnPreferenceChanged,
172 base::Unretained(this));
173
174 // Watch for pref changes that cause us to need to invalidate the HTML cache.
175 profile_pref_change_registrar_.Init(profile_->GetPrefs());
176 profile_pref_change_registrar_.Add(bookmarks::prefs::kShowBookmarkBar,
177 callback);
178 profile_pref_change_registrar_.Add(prefs::kNtpShownPage, callback);
179 profile_pref_change_registrar_.Add(prefs::kSignInPromoShowNTPBubble,
180 callback);
181 profile_pref_change_registrar_.Add(prefs::kHideWebStoreIcon, callback);
182
183 // Some tests don't have a local state.
184 #if defined(ENABLE_APP_LIST)
185 if (g_browser_process->local_state()) {
186 local_state_pref_change_registrar_.Init(g_browser_process->local_state());
187 local_state_pref_change_registrar_.Add(prefs::kShowAppLauncherPromo,
188 callback);
189 local_state_pref_change_registrar_.Add(
190 prefs::kAppLauncherHasBeenEnabled, callback);
191 }
192 #endif
193 }
194
~NTPResourceCache()195 NTPResourceCache::~NTPResourceCache() {}
196
NewTabCacheNeedsRefresh()197 bool NTPResourceCache::NewTabCacheNeedsRefresh() {
198 #if defined(OS_MACOSX)
199 // Invalidate if the current value is different from the cached value.
200 bool is_enabled = platform_util::IsSwipeTrackingFromScrollEventsEnabled();
201 if (is_enabled != is_swipe_tracking_from_scroll_events_enabled_) {
202 is_swipe_tracking_from_scroll_events_enabled_ = is_enabled;
203 return true;
204 }
205 #endif
206 bool should_show_apps_page = NewTabUI::ShouldShowApps();
207 if (should_show_apps_page != should_show_apps_page_) {
208 should_show_apps_page_ = should_show_apps_page;
209 return true;
210 }
211 return false;
212 }
213
GetWindowType(Profile * profile,content::RenderProcessHost * render_host)214 NTPResourceCache::WindowType NTPResourceCache::GetWindowType(
215 Profile* profile, content::RenderProcessHost* render_host) {
216 if (profile->IsGuestSession()) {
217 return NTPResourceCache::GUEST;
218 } else if (render_host) {
219 // Sometimes the |profile| is the parent (non-incognito) version of the user
220 // so we check the |render_host| if it is provided.
221 if (render_host->GetBrowserContext()->IsOffTheRecord())
222 return NTPResourceCache::INCOGNITO;
223 } else if (profile->IsOffTheRecord()) {
224 return NTPResourceCache::INCOGNITO;
225 }
226 return NTPResourceCache::NORMAL;
227 }
228
GetNewTabHTML(WindowType win_type)229 base::RefCountedMemory* NTPResourceCache::GetNewTabHTML(WindowType win_type) {
230 DCHECK_CURRENTLY_ON(BrowserThread::UI);
231 if (win_type == GUEST) {
232 if (!new_tab_guest_html_.get())
233 CreateNewTabGuestHTML();
234 return new_tab_guest_html_.get();
235 } else if (win_type == INCOGNITO) {
236 if (!new_tab_incognito_html_.get())
237 CreateNewTabIncognitoHTML();
238 return new_tab_incognito_html_.get();
239 } else {
240 // Refresh the cached HTML if necessary.
241 // NOTE: NewTabCacheNeedsRefresh() must be called every time the new tab
242 // HTML is fetched, because it needs to initialize cached values.
243 if (NewTabCacheNeedsRefresh() || !new_tab_html_.get())
244 CreateNewTabHTML();
245 return new_tab_html_.get();
246 }
247 }
248
GetNewTabCSS(WindowType win_type)249 base::RefCountedMemory* NTPResourceCache::GetNewTabCSS(WindowType win_type) {
250 DCHECK_CURRENTLY_ON(BrowserThread::UI);
251 if (win_type == GUEST) {
252 if (!new_tab_guest_css_.get())
253 CreateNewTabGuestCSS();
254 return new_tab_guest_css_.get();
255 } else if (win_type == INCOGNITO) {
256 if (!new_tab_incognito_css_.get())
257 CreateNewTabIncognitoCSS();
258 return new_tab_incognito_css_.get();
259 } else {
260 if (!new_tab_css_.get())
261 CreateNewTabCSS();
262 return new_tab_css_.get();
263 }
264 }
265
Observe(int type,const content::NotificationSource & source,const content::NotificationDetails & details)266 void NTPResourceCache::Observe(int type,
267 const content::NotificationSource& source,
268 const content::NotificationDetails& details) {
269 // Invalidate the cache.
270 if (chrome::NOTIFICATION_BROWSER_THEME_CHANGED == type ||
271 chrome::NOTIFICATION_PROMO_RESOURCE_STATE_CHANGED == type) {
272 new_tab_incognito_html_ = NULL;
273 new_tab_html_ = NULL;
274 new_tab_incognito_css_ = NULL;
275 new_tab_css_ = NULL;
276 } else {
277 NOTREACHED();
278 }
279 }
280
OnPreferenceChanged()281 void NTPResourceCache::OnPreferenceChanged() {
282 // A change occurred to one of the preferences we care about, so flush the
283 // cache.
284 new_tab_incognito_html_ = NULL;
285 new_tab_html_ = NULL;
286 new_tab_css_ = NULL;
287 }
288
CreateNewTabIncognitoHTML()289 void NTPResourceCache::CreateNewTabIncognitoHTML() {
290 base::DictionaryValue localized_strings;
291 localized_strings.SetString("title",
292 l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
293 int new_tab_description_ids = IDS_NEW_TAB_OTR_DESCRIPTION;
294 int new_tab_heading_ids = IDS_NEW_TAB_OTR_HEADING;
295 int new_tab_link_ids = IDS_NEW_TAB_OTR_LEARN_MORE_LINK;
296 int new_tab_warning_ids = IDS_NEW_TAB_OTR_MESSAGE_WARNING;
297 int new_tab_html_idr = IDR_INCOGNITO_TAB_HTML;
298 const char* new_tab_link = kLearnMoreIncognitoUrl;
299
300 if (profile_->IsGuestSession()) {
301 localized_strings.SetString("guestTabDescription",
302 l10n_util::GetStringUTF16(new_tab_description_ids));
303 localized_strings.SetString("guestTabHeading",
304 l10n_util::GetStringUTF16(new_tab_heading_ids));
305 } else {
306 localized_strings.SetString("incognitoTabDescription",
307 l10n_util::GetStringUTF16(new_tab_description_ids));
308 localized_strings.SetString("incognitoTabHeading",
309 l10n_util::GetStringUTF16(new_tab_heading_ids));
310 localized_strings.SetString("incognitoTabWarning",
311 l10n_util::GetStringUTF16(new_tab_warning_ids));
312 }
313
314 localized_strings.SetString("learnMore",
315 l10n_util::GetStringUTF16(new_tab_link_ids));
316 localized_strings.SetString("learnMoreLink", new_tab_link);
317
318 bool bookmark_bar_attached =
319 profile_->GetPrefs()->GetBoolean(bookmarks::prefs::kShowBookmarkBar);
320 localized_strings.SetBoolean("bookmarkbarattached", bookmark_bar_attached);
321
322 webui::SetFontAndTextDirection(&localized_strings);
323
324 static const base::StringPiece incognito_tab_html(
325 ResourceBundle::GetSharedInstance().GetRawDataResource(
326 new_tab_html_idr));
327
328 std::string full_html = webui::GetI18nTemplateHtml(
329 incognito_tab_html, &localized_strings);
330
331 new_tab_incognito_html_ = base::RefCountedString::TakeString(&full_html);
332 }
333
CreateNewTabGuestHTML()334 void NTPResourceCache::CreateNewTabGuestHTML() {
335 base::DictionaryValue localized_strings;
336 localized_strings.SetString("title",
337 l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
338 const char* guest_tab_link = kLearnMoreGuestSessionUrl;
339 int guest_tab_ids = IDR_GUEST_TAB_HTML;
340 int guest_tab_description_ids = IDS_NEW_TAB_GUEST_SESSION_DESCRIPTION;
341 int guest_tab_heading_ids = IDS_NEW_TAB_GUEST_SESSION_HEADING;
342 int guest_tab_link_ids = IDS_NEW_TAB_GUEST_SESSION_LEARN_MORE_LINK;
343
344 #if defined(OS_CHROMEOS)
345 guest_tab_ids = IDR_GUEST_SESSION_TAB_HTML;
346 guest_tab_link = kLearnMoreGuestSessionUrl;
347
348 policy::BrowserPolicyConnectorChromeOS* connector =
349 g_browser_process->platform_part()->browser_policy_connector_chromeos();
350 std::string enterprise_domain = connector->GetEnterpriseDomain();
351
352 if (!enterprise_domain.empty()) {
353 // Device is enterprise enrolled.
354 localized_strings.SetString("enterpriseInfoVisible", "true");
355 base::string16 enterprise_info = l10n_util::GetStringFUTF16(
356 IDS_DEVICE_OWNED_BY_NOTICE,
357 base::UTF8ToUTF16(enterprise_domain));
358 localized_strings.SetString("enterpriseInfoMessage", enterprise_info);
359 localized_strings.SetString("enterpriseLearnMore",
360 l10n_util::GetStringUTF16(IDS_LEARN_MORE));
361 localized_strings.SetString("enterpriseInfoHintLink",
362 chrome::kLearnMoreEnterpriseURL);
363 } else {
364 localized_strings.SetString("enterpriseInfoVisible", "false");
365 }
366 #endif
367
368 localized_strings.SetString("guestTabDescription",
369 l10n_util::GetStringUTF16(guest_tab_description_ids));
370 localized_strings.SetString("guestTabHeading",
371 l10n_util::GetStringUTF16(guest_tab_heading_ids));
372 localized_strings.SetString("learnMore",
373 l10n_util::GetStringUTF16(guest_tab_link_ids));
374 localized_strings.SetString("learnMoreLink", guest_tab_link);
375
376 webui::SetFontAndTextDirection(&localized_strings);
377
378 static const base::StringPiece guest_tab_html(
379 ResourceBundle::GetSharedInstance().GetRawDataResource(guest_tab_ids));
380
381 std::string full_html = webui::GetI18nTemplateHtml(
382 guest_tab_html, &localized_strings);
383
384 new_tab_guest_html_ = base::RefCountedString::TakeString(&full_html);
385 }
386
CreateNewTabHTML()387 void NTPResourceCache::CreateNewTabHTML() {
388 // TODO(estade): these strings should be defined in their relevant handlers
389 // (in GetLocalizedValues) and should have more legible names.
390 // Show the profile name in the title and most visited labels if the current
391 // profile is not the default.
392 PrefService* prefs = profile_->GetPrefs();
393 base::DictionaryValue load_time_data;
394 load_time_data.SetBoolean("bookmarkbarattached",
395 prefs->GetBoolean(bookmarks::prefs::kShowBookmarkBar));
396 load_time_data.SetBoolean("hasattribution",
397 ThemeServiceFactory::GetForProfile(profile_)->HasCustomImage(
398 IDR_THEME_NTP_ATTRIBUTION));
399 load_time_data.SetBoolean("showMostvisited", should_show_most_visited_page_);
400 load_time_data.SetBoolean("showAppLauncherPromo",
401 ShouldShowAppLauncherPromo());
402 load_time_data.SetBoolean("showRecentlyClosed",
403 should_show_recently_closed_menu_);
404 load_time_data.SetString("title",
405 l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
406 load_time_data.SetString("mostvisited",
407 l10n_util::GetStringUTF16(IDS_NEW_TAB_MOST_VISITED));
408 load_time_data.SetString("suggestions",
409 l10n_util::GetStringUTF16(IDS_NEW_TAB_SUGGESTIONS));
410 load_time_data.SetString("restoreThumbnailsShort",
411 l10n_util::GetStringUTF16(IDS_NEW_TAB_RESTORE_THUMBNAILS_SHORT_LINK));
412 load_time_data.SetString("recentlyclosed",
413 l10n_util::GetStringUTF16(IDS_NEW_TAB_RECENTLY_CLOSED));
414 load_time_data.SetString("webStoreTitle",
415 l10n_util::GetStringUTF16(IDS_EXTENSION_WEB_STORE_TITLE));
416 load_time_data.SetString("webStoreTitleShort",
417 l10n_util::GetStringUTF16(IDS_EXTENSION_WEB_STORE_TITLE_SHORT));
418 load_time_data.SetString("closedwindowsingle",
419 l10n_util::GetStringUTF16(IDS_NEW_TAB_RECENTLY_CLOSED_WINDOW_SINGLE));
420 load_time_data.SetString("closedwindowmultiple",
421 l10n_util::GetStringUTF16(IDS_NEW_TAB_RECENTLY_CLOSED_WINDOW_MULTIPLE));
422 load_time_data.SetString("attributionintro",
423 l10n_util::GetStringUTF16(IDS_NEW_TAB_ATTRIBUTION_INTRO));
424 load_time_data.SetString("thumbnailremovednotification",
425 l10n_util::GetStringUTF16(IDS_NEW_TAB_THUMBNAIL_REMOVED_NOTIFICATION));
426 load_time_data.SetString("undothumbnailremove",
427 l10n_util::GetStringUTF16(IDS_NEW_TAB_UNDO_THUMBNAIL_REMOVE));
428 load_time_data.SetString("removethumbnailtooltip",
429 l10n_util::GetStringUTF16(IDS_NEW_TAB_REMOVE_THUMBNAIL_TOOLTIP));
430 load_time_data.SetString("appuninstall",
431 l10n_util::GetStringUTF16(IDS_EXTENSIONS_UNINSTALL));
432 load_time_data.SetString("appoptions",
433 l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_OPTIONS));
434 load_time_data.SetString("appdetails",
435 l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_DETAILS));
436 load_time_data.SetString("appcreateshortcut",
437 l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_CREATE_SHORTCUT));
438 load_time_data.SetString("appDefaultPageName",
439 l10n_util::GetStringUTF16(IDS_APP_DEFAULT_PAGE_NAME));
440 load_time_data.SetString("applaunchtypepinned",
441 l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_PINNED));
442 load_time_data.SetString("applaunchtyperegular",
443 l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_REGULAR));
444 load_time_data.SetString("applaunchtypewindow",
445 l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_WINDOW));
446 load_time_data.SetString("applaunchtypefullscreen",
447 l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_FULLSCREEN));
448 load_time_data.SetString("syncpromotext",
449 l10n_util::GetStringUTF16(IDS_SYNC_START_SYNC_BUTTON_LABEL));
450 load_time_data.SetString("syncLinkText",
451 l10n_util::GetStringUTF16(IDS_SYNC_ADVANCED_OPTIONS));
452 load_time_data.SetBoolean("shouldShowSyncLogin",
453 NTPLoginHandler::ShouldShow(profile_));
454 load_time_data.SetString("otherSessions",
455 l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_LABEL));
456 load_time_data.SetString("otherSessionsEmpty",
457 l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_EMPTY));
458 load_time_data.SetString("otherSessionsLearnMoreUrl",
459 l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_LEARN_MORE_URL));
460 load_time_data.SetString("learnMore",
461 l10n_util::GetStringUTF16(IDS_LEARN_MORE));
462 load_time_data.SetString("webStoreLink",
463 google_util::AppendGoogleLocaleParam(
464 GURL(extension_urls::GetWebstoreLaunchURL()),
465 g_browser_process->GetApplicationLocale()).spec());
466 load_time_data.SetString("appInstallHintText",
467 l10n_util::GetStringUTF16(IDS_NEW_TAB_APP_INSTALL_HINT_LABEL));
468 load_time_data.SetBoolean("isDiscoveryInNTPEnabled",
469 NewTabUI::IsDiscoveryInNTPEnabled());
470 load_time_data.SetString("collapseSessionMenuItemText",
471 l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_COLLAPSE_SESSION));
472 load_time_data.SetString("expandSessionMenuItemText",
473 l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_EXPAND_SESSION));
474 load_time_data.SetString("restoreSessionMenuItemText",
475 l10n_util::GetStringUTF16(IDS_NEW_TAB_OTHER_SESSIONS_OPEN_ALL));
476 load_time_data.SetString("learn_more",
477 l10n_util::GetStringUTF16(IDS_LEARN_MORE));
478 load_time_data.SetString("tile_grid_screenreader_accessible_description",
479 l10n_util::GetStringUTF16(IDS_NEW_TAB_TILE_GRID_ACCESSIBLE_DESCRIPTION));
480 load_time_data.SetString("page_switcher_change_title",
481 l10n_util::GetStringUTF16(IDS_NEW_TAB_PAGE_SWITCHER_CHANGE_TITLE));
482 load_time_data.SetString("page_switcher_same_title",
483 l10n_util::GetStringUTF16(IDS_NEW_TAB_PAGE_SWITCHER_SAME_TITLE));
484 load_time_data.SetString("appsPromoTitle",
485 l10n_util::GetStringUTF16(IDS_NEW_TAB_PAGE_APPS_PROMO_TITLE));
486 // On Mac OS X 10.7+, horizontal scrolling can be treated as a back or
487 // forward gesture. Pass through a flag that indicates whether or not that
488 // feature is enabled.
489 load_time_data.SetBoolean("isSwipeTrackingFromScrollEventsEnabled",
490 is_swipe_tracking_from_scroll_events_enabled_);
491
492 load_time_data.SetBoolean("showApps", should_show_apps_page_);
493 load_time_data.SetBoolean("showWebStoreIcon",
494 !prefs->GetBoolean(prefs::kHideWebStoreIcon));
495
496 bool streamlined_hosted_apps =
497 extensions::util::IsStreamlinedHostedAppsEnabled();
498 load_time_data.SetBoolean("enableStreamlinedHostedApps",
499 streamlined_hosted_apps);
500 // Use a different string for launching as a regular tab for streamlined
501 // hosted apps.
502 if (streamlined_hosted_apps) {
503 load_time_data.SetString("applaunchtypetab",
504 l10n_util::GetStringUTF16(IDS_APP_CONTEXT_MENU_OPEN_TAB));
505 }
506
507 #if defined(OS_CHROMEOS)
508 load_time_data.SetString("expandMenu",
509 l10n_util::GetStringUTF16(IDS_NEW_TAB_CLOSE_MENU_EXPAND));
510 #endif
511
512 NewTabPageHandler::GetLocalizedValues(profile_, &load_time_data);
513 NTPLoginHandler::GetLocalizedValues(profile_, &load_time_data);
514
515 webui::SetFontAndTextDirection(&load_time_data);
516
517 // Control fade and resize animations.
518 load_time_data.SetBoolean("anim",
519 gfx::Animation::ShouldRenderRichAnimation());
520
521 ui::ThemeProvider* tp = ThemeServiceFactory::GetForProfile(profile_);
522 int alignment = tp->GetDisplayProperty(
523 ThemeProperties::NTP_BACKGROUND_ALIGNMENT);
524 load_time_data.SetString("themegravity",
525 (alignment & ThemeProperties::ALIGN_RIGHT) ? "right" : "");
526
527 // Disable the promo if this is the first run, otherwise set the promo string
528 // for display if there is a valid outstanding promo.
529 if (first_run::IsChromeFirstRun()) {
530 NotificationPromo::HandleClosed(NotificationPromo::NTP_NOTIFICATION_PROMO);
531 } else {
532 NotificationPromo notification_promo;
533 notification_promo.InitFromPrefs(NotificationPromo::NTP_NOTIFICATION_PROMO);
534 if (notification_promo.CanShow()) {
535 load_time_data.SetString("notificationPromoText",
536 notification_promo.promo_text());
537 DVLOG(1) << "Notification promo:" << notification_promo.promo_text();
538 }
539
540 NotificationPromo bubble_promo;
541 bubble_promo.InitFromPrefs(NotificationPromo::NTP_BUBBLE_PROMO);
542 if (bubble_promo.CanShow()) {
543 load_time_data.SetString("bubblePromoText",
544 bubble_promo.promo_text());
545 DVLOG(1) << "Bubble promo:" << bubble_promo.promo_text();
546 }
547 }
548
549 // Determine whether to show the menu for accessing tabs on other devices.
550 bool show_other_sessions_menu = should_show_other_devices_menu_ &&
551 !CommandLine::ForCurrentProcess()->HasSwitch(
552 switches::kDisableNTPOtherSessionsMenu);
553 load_time_data.SetBoolean("showOtherSessionsMenu", show_other_sessions_menu);
554 load_time_data.SetBoolean("isUserSignedIn",
555 !prefs->GetString(prefs::kGoogleServicesUsername).empty());
556
557 // Load the new tab page appropriate for this build.
558 base::StringPiece new_tab_html(ResourceBundle::GetSharedInstance().
559 GetRawDataResource(IDR_NEW_TAB_4_HTML));
560 webui::UseVersion2 version2;
561 std::string full_html =
562 webui::GetI18nTemplateHtml(new_tab_html, &load_time_data);
563 new_tab_html_ = base::RefCountedString::TakeString(&full_html);
564 }
565
CreateNewTabIncognitoCSS()566 void NTPResourceCache::CreateNewTabIncognitoCSS() {
567 ui::ThemeProvider* tp = ThemeServiceFactory::GetForProfile(profile_);
568 DCHECK(tp);
569
570 // Get our theme colors
571 SkColor color_background =
572 GetThemeColor(tp, ThemeProperties::COLOR_NTP_BACKGROUND);
573
574 // Generate the replacements.
575 std::vector<std::string> subst;
576
577 // Cache-buster for background.
578 subst.push_back(
579 profile_->GetPrefs()->GetString(prefs::kCurrentThemeID)); // $1
580
581 // Colors.
582 subst.push_back(SkColorToRGBAString(color_background)); // $2
583 subst.push_back(GetNewTabBackgroundCSS(tp, false)); // $3
584 subst.push_back(GetNewTabBackgroundCSS(tp, true)); // $4
585 subst.push_back(GetNewTabBackgroundTilingCSS(tp)); // $5
586
587 // Get our template.
588 static const base::StringPiece new_tab_theme_css(
589 ResourceBundle::GetSharedInstance().GetRawDataResource(
590 IDR_NEW_INCOGNITO_TAB_THEME_CSS));
591
592 // Create the string from our template and the replacements.
593 std::string full_css = ReplaceStringPlaceholders(
594 new_tab_theme_css, subst, NULL);
595
596 new_tab_incognito_css_ = base::RefCountedString::TakeString(&full_css);
597 }
598
CreateNewTabGuestCSS()599 void NTPResourceCache::CreateNewTabGuestCSS() {
600 ui::ThemeProvider* tp = ThemeServiceFactory::GetForProfile(profile_);
601 DCHECK(tp);
602
603 // Get our theme colors
604 SkColor color_background =
605 GetThemeColor(tp, ThemeProperties::COLOR_NTP_BACKGROUND);
606
607 // Generate the replacements.
608 std::vector<std::string> subst;
609
610 // Cache-buster for background.
611 subst.push_back(
612 profile_->GetPrefs()->GetString(prefs::kCurrentThemeID)); // $1
613
614 // Colors.
615 subst.push_back(SkColorToRGBAString(color_background)); // $2
616 subst.push_back(GetNewTabBackgroundCSS(tp, false)); // $3
617 subst.push_back(GetNewTabBackgroundCSS(tp, true)); // $4
618 subst.push_back(GetNewTabBackgroundTilingCSS(tp)); // $5
619
620 // Get our template.
621 static const base::StringPiece new_tab_theme_css(
622 ResourceBundle::GetSharedInstance().GetRawDataResource(
623 IDR_NEW_GUEST_TAB_THEME_CSS));
624
625 // Create the string from our template and the replacements.
626 std::string full_css = ReplaceStringPlaceholders(
627 new_tab_theme_css, subst, NULL);
628
629 new_tab_guest_css_ = base::RefCountedString::TakeString(&full_css);
630 }
631
CreateNewTabCSS()632 void NTPResourceCache::CreateNewTabCSS() {
633 ui::ThemeProvider* tp = ThemeServiceFactory::GetForProfile(profile_);
634 DCHECK(tp);
635
636 // Get our theme colors
637 SkColor color_background =
638 GetThemeColor(tp, ThemeProperties::COLOR_NTP_BACKGROUND);
639 SkColor color_text = GetThemeColor(tp, ThemeProperties::COLOR_NTP_TEXT);
640 SkColor color_link = GetThemeColor(tp, ThemeProperties::COLOR_NTP_LINK);
641 SkColor color_link_underline =
642 GetThemeColor(tp, ThemeProperties::COLOR_NTP_LINK_UNDERLINE);
643
644 SkColor color_section =
645 GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION);
646 SkColor color_section_text =
647 GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_TEXT);
648 SkColor color_section_link =
649 GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_LINK);
650 SkColor color_section_link_underline =
651 GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_LINK_UNDERLINE);
652 SkColor color_section_header_text =
653 GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_HEADER_TEXT);
654 SkColor color_section_header_text_hover =
655 GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_HEADER_TEXT_HOVER);
656 SkColor color_section_header_rule =
657 GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_HEADER_RULE);
658 SkColor color_section_header_rule_light =
659 GetThemeColor(tp, ThemeProperties::COLOR_NTP_SECTION_HEADER_RULE_LIGHT);
660 SkColor color_text_light =
661 GetThemeColor(tp, ThemeProperties::COLOR_NTP_TEXT_LIGHT);
662
663 SkColor color_header =
664 GetThemeColor(tp, ThemeProperties::COLOR_NTP_HEADER);
665 // Generate a lighter color for the header gradients.
666 color_utils::HSL header_lighter;
667 color_utils::SkColorToHSL(color_header, &header_lighter);
668 header_lighter.l += (1 - header_lighter.l) * 0.33;
669 SkColor color_header_gradient_light =
670 color_utils::HSLToSkColor(header_lighter, SkColorGetA(color_header));
671
672 // Generate section border color from the header color. See
673 // BookmarkBarView::Paint for how we do this for the bookmark bar
674 // borders.
675 SkColor color_section_border =
676 SkColorSetARGB(80,
677 SkColorGetR(color_header),
678 SkColorGetG(color_header),
679 SkColorGetB(color_header));
680
681 // Generate the replacements.
682 std::vector<std::string> subst;
683
684 // Cache-buster for background.
685 subst.push_back(
686 profile_->GetPrefs()->GetString(prefs::kCurrentThemeID)); // $1
687
688 // Colors.
689 subst.push_back(SkColorToRGBAString(color_background)); // $2
690 subst.push_back(GetNewTabBackgroundCSS(tp, false)); // $3
691 subst.push_back(GetNewTabBackgroundCSS(tp, true)); // $4
692 subst.push_back(GetNewTabBackgroundTilingCSS(tp)); // $5
693 subst.push_back(SkColorToRGBAString(color_header)); // $6
694 subst.push_back(SkColorToRGBAString(color_header_gradient_light)); // $7
695 subst.push_back(SkColorToRGBAString(color_text)); // $8
696 subst.push_back(SkColorToRGBAString(color_link)); // $9
697 subst.push_back(SkColorToRGBAString(color_section)); // $10
698 subst.push_back(SkColorToRGBAString(color_section_border)); // $11
699 subst.push_back(SkColorToRGBAString(color_section_text)); // $12
700 subst.push_back(SkColorToRGBAString(color_section_link)); // $13
701 subst.push_back(SkColorToRGBAString(color_link_underline)); // $14
702 subst.push_back(SkColorToRGBAString(color_section_link_underline)); // $15
703 subst.push_back(SkColorToRGBAString(color_section_header_text)); // $16
704 subst.push_back(SkColorToRGBAString(
705 color_section_header_text_hover)); // $17
706 subst.push_back(SkColorToRGBAString(color_section_header_rule)); // $18
707 subst.push_back(SkColorToRGBAString(
708 color_section_header_rule_light)); // $19
709 subst.push_back(SkColorToRGBAString(
710 SkColorSetA(color_section_header_rule, 0))); // $20
711 subst.push_back(SkColorToRGBAString(color_text_light)); // $21
712 subst.push_back(SkColorToRGBComponents(color_section_border)); // $22
713 subst.push_back(SkColorToRGBComponents(color_text)); // $23
714
715 // Get our template.
716 static const base::StringPiece new_tab_theme_css(
717 ResourceBundle::GetSharedInstance().GetRawDataResource(
718 IDR_NEW_TAB_4_THEME_CSS));
719
720 // Create the string from our template and the replacements.
721 std::string css_string;
722 css_string = ReplaceStringPlaceholders(new_tab_theme_css, subst, NULL);
723 new_tab_css_ = base::RefCountedString::TakeString(&css_string);
724 }
725