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|
// Copyright 2012 The Chromium Authors
// 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 <utility>
#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/memory/ref_counted_memory.h"
#include "base/no_destructor.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/to_string.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "base/version_info/channel.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/browser_process_platform_part.h"
#include "chrome/browser/policy/profile_policy_connector.h"
#include "chrome/browser/privacy_sandbox/tracking_protection_settings_factory.h"
#include "chrome/browser/profiles/profile.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/browser_window.h"
#include "chrome/browser/ui/color/chrome_color_id.h"
#include "chrome/browser/ui/cookie_controls/cookie_controls_service.h"
#include "chrome/browser/ui/cookie_controls/cookie_controls_service_factory.h"
#include "chrome/browser/ui/layout_constants.h"
#include "chrome/browser/ui/webui/ntp/cookie_controls_handler.h"
#include "chrome/browser/ui/webui/webui_util_desktop.h"
#include "chrome/common/buildflags.h"
#include "chrome/common/channel_info.h"
#include "chrome/common/chrome_features.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/branded_strings.h"
#include "chrome/grit/browser_resources.h"
#include "chrome/grit/generated_resources.h"
#include "chrome/grit/theme_resources.h"
#include "components/content_settings/core/common/cookie_controls_enforcement.h"
#include "components/content_settings/core/common/pref_names.h"
#include "components/policy/core/common/policy_service.h"
#include "components/policy/policy_constants.h"
#include "components/prefs/pref_service.h"
#include "components/privacy_sandbox/privacy_sandbox_features.h"
#include "components/privacy_sandbox/tracking_protection_settings.h"
#include "components/strings/grit/components_strings.h"
#include "components/strings/grit/privacy_sandbox_strings.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.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/color/color_provider.h"
#include "ui/gfx/color_utils.h"
#include "ui/native_theme/native_theme.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "chrome/browser/ash/policy/core/browser_policy_connector_ash.h"
#include "chromeos/strings/grit/chromeos_strings.h"
#include "ui/chromeos/devicetype_utils.h"
#endif
using content::BrowserThread;
namespace {
// The URL for the the Learn More page shown on incognito new tab.
const char kLearnMoreIncognitoUrl[] =
#if BUILDFLAG(IS_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 BUILDFLAG(IS_CHROMEOS)
"https://support.google.com/chromebook/?p=chromebook_guest";
#else
"https://support.google.com/chrome/?p=ui_guest";
#endif
std::string ReplaceTemplateExpressions(
const scoped_refptr<base::RefCountedMemory>& bytes,
const ui::TemplateReplacements& replacements) {
return ui::ReplaceTemplateExpressions(base::as_string_view(*bytes),
replacements);
}
} // namespace
SkColor GetThemeColor(const ui::NativeTheme* native_theme,
const ui::ColorProvider& cp,
int id) {
SkColor color = cp.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 native_theme->GetPlatformHighContrastColorScheme() ==
ui::NativeTheme::PlatformHighContrastColorScheme::kDark
? color_utils::InvertColor(color)
: color;
}
// Get the CSS string for the background position on the new tab page.
std::string GetNewTabBackgroundPositionCSS(
const ui::ThemeProvider& theme_provider) {
// 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";
}
return ThemeProperties::AlignmentToString(theme_provider.GetDisplayProperty(
ThemeProperties::NTP_BACKGROUND_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);
}
NTPResourceCache::NTPResourceCache(Profile* profile)
: profile_(profile), is_swipe_tracking_from_scroll_events_enabled_(false) {
ThemeServiceFactory::GetForProfile(profile_)->AddObserver(this);
base::RepeatingClosure callback = base::BindRepeating(
&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(prefs::kCookieControlsMode, callback);
// TODO(crbug.com/40677117): Remove the global accessor to NativeTheme.
theme_observation_.Observe(ui::NativeTheme::GetInstanceForNativeUi());
policy_change_registrar_ = std::make_unique<policy::PolicyChangeRegistrar>(
profile->GetProfilePolicyConnector()->policy_service(),
policy::PolicyNamespace(policy::POLICY_DOMAIN_CHROME, std::string()));
policy_change_registrar_->Observe(
policy::key::kBlockThirdPartyCookies,
base::BindRepeating(&NTPResourceCache::OnPolicyChanged,
base::Unretained(this)));
}
NTPResourceCache::~NTPResourceCache() = default;
NTPResourceCache::WindowType NTPResourceCache::GetWindowType(Profile* profile) {
if (profile->IsGuestSession()) {
return GUEST;
}
if (profile->IsIncognitoProfile()) {
return INCOGNITO;
}
if (profile->IsOffTheRecord()) {
return NON_PRIMARY_OTR;
}
return NORMAL;
}
base::RefCountedMemory* NTPResourceCache::GetNewTabGuestHTML() {
if (!new_tab_guest_html_) {
CreateNewTabGuestHTML();
}
return new_tab_guest_html_.get();
}
base::RefCountedMemory* NTPResourceCache::GetNewTabHTML(
WindowType win_type,
const content::WebContents::Getter& wc_getter) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
switch (win_type) {
case GUEST:
return GetNewTabGuestHTML();
case INCOGNITO:
if (!new_tab_incognito_html_) {
CreateNewTabIncognitoHTML(wc_getter);
}
return new_tab_incognito_html_.get();
case NON_PRIMARY_OTR:
if (!new_tab_non_primary_otr_html_) {
new_tab_non_primary_otr_html_ =
base::MakeRefCounted<base::RefCountedString>(std::string());
}
return new_tab_non_primary_otr_html_.get();
case NORMAL:
NOTREACHED();
}
}
base::RefCountedMemory* NTPResourceCache::GetNewTabCSS(
WindowType win_type,
const content::WebContents::Getter& wc_getter) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
// Guest mode doesn't have theme-related CSS.
if (win_type == GUEST) {
return nullptr;
}
// Returns the cached CSS if it exists.
// The cache will be invalidated when the theme of |wc_getter| changes.
if (win_type == INCOGNITO) {
if (!new_tab_incognito_css_) {
CreateNewTabIncognitoCSS(wc_getter);
}
return new_tab_incognito_css_.get();
}
if (!new_tab_css_) {
CreateNewTabCSS(wc_getter);
}
return new_tab_css_.get();
}
void NTPResourceCache::OnThemeChanged() {
Invalidate();
}
void NTPResourceCache::Shutdown() {
ThemeServiceFactory::GetForProfile(profile_)->RemoveObserver(this);
}
void NTPResourceCache::OnNativeThemeUpdated(ui::NativeTheme* updated_theme) {
// TODO(crbug.com/40677117): Remove the global accessor to NativeTheme.
DCHECK_EQ(updated_theme, ui::NativeTheme::GetInstanceForNativeUi());
Invalidate();
}
void NTPResourceCache::OnPreferenceChanged() {
// A change occurred to one of the preferences we care about, so flush the
// cache.
new_tab_incognito_html_ = nullptr;
new_tab_css_ = nullptr;
}
// TODO(dbeam): why must Invalidate() and OnPreferenceChanged() both exist?
void NTPResourceCache::Invalidate() {
new_tab_incognito_html_ = nullptr;
new_tab_incognito_css_ = nullptr;
new_tab_css_ = nullptr;
new_tab_guest_html_ = nullptr;
}
void NTPResourceCache::CreateNewTabIncognitoHTML(
const content::WebContents::Getter& wc_getter) {
ui::TemplateReplacements replacements;
base::Value::Dict localized_strings;
// Ensure passing off-the-record profile; |profile_| is not an OTR profile.
DCHECK(!profile_->IsOffTheRecord());
DCHECK(profile_->HasAnyOffTheRecordProfile());
// Cookie controls service returns the same result for all off-the-record
// profiles, so it doesn't matter which of them we use.
Profile* incognito_profile = profile_->GetAllOffTheRecordProfiles()[0];
CookieControlsService* cookie_controls_service =
CookieControlsServiceFactory::GetForProfile(incognito_profile);
replacements["incognitoTabDescription"] =
l10n_util::GetStringUTF8(IDS_NEW_TAB_OTR_SUBTITLE_WITH_READING_LIST);
privacy_sandbox::TrackingProtectionSettings* tracking_protection_settings =
TrackingProtectionSettingsFactory::GetForProfile(incognito_profile);
bool is_tracking_protection_3pcd_enabled =
tracking_protection_settings->IsTrackingProtection3pcdEnabled();
replacements["incognitoTabHeading"] =
l10n_util::GetStringUTF8(IDS_NEW_TAB_OTR_TITLE);
replacements["incognitoTabWarning"] =
l10n_util::GetStringUTF8(IDS_NEW_TAB_OTR_VISIBLE);
replacements["incognitoTabFeatures"] =
l10n_util::GetStringUTF8(IDS_NEW_TAB_OTR_NOT_SAVED);
replacements["learnMore"] =
l10n_util::GetStringUTF8(IDS_NEW_TAB_OTR_LEARN_MORE_LINK);
replacements["learnMoreLink"] = kLearnMoreIncognitoUrl;
replacements["learnMoreA11yLabel"] = l10n_util::GetStringUTF8(
IDS_INCOGNITO_TAB_LEARN_MORE_ACCESSIBILITY_LABEL);
replacements["title"] = l10n_util::GetStringUTF8(IDS_NEW_INCOGNITO_TAB_TITLE);
replacements["cookieControlsHeader"] = "cookie-controls-header";
replacements["hideBlockCookiesToggle"] = "hidden";
replacements["hideTooltipIcon"] = "hidden";
replacements["hideUserBypassIcon"] = "hidden";
if ((base::FeatureList::IsEnabled(
privacy_sandbox::kFingerprintingProtectionUx) ||
base::FeatureList::IsEnabled(privacy_sandbox::kIpProtectionUx)) &&
chrome::GetChannel() == version_info::Channel::CANARY) {
replacements["cookieControlsTitle"] = l10n_util::GetStringUTF8(
IDS_INCOGNITO_NTP_INCOGNITO_TRACKING_PROTECTIONS_HEADER);
localized_strings.Set(
"cookieControlsDescription",
l10n_util::GetStringFUTF16(
IDS_INCOGNITO_NTP_INCOGNITO_TRACKING_PROTECTIONS_DESCRIPTION_DESKTOP,
u"chrome://settings/incognito",
l10n_util::GetStringUTF16(
IDS_INCOGNITO_NTP_INCOGNITO_TRACKING_PROTECTIONS_LINK_A11Y_LABEL),
l10n_util::GetStringUTF16(
IDS_INCOGNITO_NTP_INCOGNITO_TRACKING_PROTECTIONS_LINK_A11Y_DESCRIPTION)));
} else if (base::FeatureList::IsEnabled(
privacy_sandbox::kAlwaysBlock3pcsIncognito)) {
replacements["hideUserBypassIcon"] = "";
replacements["cookieControlsTitle"] = l10n_util::GetStringUTF8(
IDS_INCOGNITO_NTP_BLOCK_THIRD_PARTY_COOKIES_HEADER);
localized_strings.Set(
"cookieControlsDescription",
l10n_util::GetStringFUTF16(
IDS_INCOGNITO_NTP_BLOCK_THIRD_PARTY_COOKIES_DESCRIPTION_DESKTOP,
chrome::kUserBypassHelpCenterURL,
l10n_util::GetStringUTF16(
IDS_NEW_TAB_OPENS_HC_ARTICLE_IN_NEW_TAB)));
} else if (is_tracking_protection_3pcd_enabled) {
replacements["cookieControlsHeader"] = "cookie-controls-title";
replacements["cookieControlsTitle"] =
l10n_util::GetStringUTF8(IDS_NEW_TAB_OTR_THIRD_PARTY_BLOCKED_COOKIE);
localized_strings.Set(
"cookieControlsDescription",
l10n_util::GetStringFUTF16(
IDS_NEW_TAB_OTR_THIRD_PARTY_BLOCKED_COOKIE_SUBLABEL,
chrome::kUserBypassHelpCenterURL,
l10n_util::GetStringUTF16(
IDS_NEW_TAB_OPENS_HC_ARTICLE_IN_NEW_TAB)));
} else {
replacements["cookieControlsTitle"] =
l10n_util::GetStringUTF8(IDS_NEW_TAB_OTR_THIRD_PARTY_COOKIE);
replacements["cookieControlsHeader"] = "cookie-controls-title";
replacements["hideBlockCookiesToggle"] = "";
replacements["hideTooltipIcon"] =
cookie_controls_service->ShouldEnforceCookieControls() ? "" : "hidden";
replacements["cookieControlsDescription"] =
l10n_util::GetStringUTF8(IDS_NEW_TAB_OTR_THIRD_PARTY_COOKIE_SUBLABEL);
}
replacements["cookieControlsToggleChecked"] =
cookie_controls_service->GetToggleCheckedValue() ? "checked" : "";
replacements["cookieControlsToolTipIcon"] =
CookieControlsHandler::GetEnforcementIcon(
cookie_controls_service->GetCookieControlsEnforcement());
replacements["cookieControlsTooltipText"] = l10n_util::GetStringUTF8(
IDS_NEW_TAB_OTR_COOKIE_CONTROLS_CONTROLLED_TOOLTIP_TEXT);
const ui::ThemeProvider& tp =
ThemeService::GetThemeProviderForProfile(incognito_profile);
replacements["hasCustomBackground"] =
base::ToString(tp.HasCustomImage(IDR_THEME_NTP_BACKGROUND));
const std::string& app_locale = g_browser_process->GetApplicationLocale();
webui::SetLoadTimeDataDefaults(app_locale, &replacements);
static const base::NoDestructor<scoped_refptr<base::RefCountedMemory>>
incognito_tab_html(
ui::ResourceBundle::GetSharedInstance().LoadDataResourceBytes(
IDR_INCOGNITO_TAB_HTML));
CHECK(*incognito_tab_html);
ui::TemplateReplacementsFromDictionaryValue(localized_strings, &replacements);
new_tab_incognito_html_ = base::MakeRefCounted<base::RefCountedString>(
ReplaceTemplateExpressions(*incognito_tab_html, replacements));
}
void NTPResourceCache::CreateNewTabGuestHTML() {
base::Value::Dict localized_strings;
localized_strings.Set("title", l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE));
const char* guest_tab_link = kLearnMoreGuestSessionUrl;
int guest_tab_idr = 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_LEARN_MORE;
#if BUILDFLAG(IS_CHROMEOS)
guest_tab_idr = IDR_GUEST_SESSION_TAB_HTML;
policy::BrowserPolicyConnectorAsh* connector =
g_browser_process->platform_part()->browser_policy_connector_ash();
if (connector->IsDeviceEnterpriseManaged()) {
localized_strings.Set("enterpriseInfoVisible", "true");
localized_strings.Set("enterpriseLearnMore",
l10n_util::GetStringUTF16(IDS_LEARN_MORE));
localized_strings.Set("enterpriseInfoHintLink",
chrome::kLearnMoreEnterpriseURL);
localized_strings.Set(
"enterpriseLearnMoreA11yLabel",
l10n_util::GetStringUTF16(
IDS_NEW_TAB_ENTERPRISE_GUEST_SESSION_LEARN_MORE_ACCESSIBILITY_TEXT));
std::u16string enterprise_info;
if (connector->IsCloudManaged()) {
const std::string enterprise_domain_manager =
connector->GetEnterpriseDomainManager();
enterprise_info = l10n_util::GetStringFUTF16(
IDS_ASH_ENTERPRISE_DEVICE_MANAGED_BY, ui::GetChromeOSDeviceName(),
base::UTF8ToUTF16(enterprise_domain_manager));
} else {
NOTREACHED() << "Unknown management type";
}
localized_strings.Set("enterpriseInfoMessage", enterprise_info);
} else {
localized_strings.Set("enterpriseInfoVisible", "false");
localized_strings.Set("enterpriseInfoMessage", "");
localized_strings.Set("enterpriseLearnMore", "");
localized_strings.Set("enterpriseInfoHintLink", "");
localized_strings.Set("enterpriseLearnMoreA11yLabel", "");
}
#endif
localized_strings.Set("guestTabDescription",
l10n_util::GetStringUTF16(guest_tab_description_ids));
localized_strings.Set("guestTabHeading",
l10n_util::GetStringUTF16(guest_tab_heading_ids));
localized_strings.Set("learnMore",
l10n_util::GetStringUTF16(guest_tab_link_ids));
localized_strings.Set("learnMoreLink", guest_tab_link);
localized_strings.Set(
"learnMoreA11yLabel",
l10n_util::GetStringUTF16(
IDS_NEW_TAB_GUEST_SESSION_LEARN_MORE_ACCESSIBILITY_TEXT));
const std::string& app_locale = g_browser_process->GetApplicationLocale();
webui::SetLoadTimeDataDefaults(app_locale, &localized_strings);
static const base::NoDestructor<scoped_refptr<base::RefCountedMemory>>
guest_tab_html(
ui::ResourceBundle::GetSharedInstance().LoadDataResourceBytes(
guest_tab_idr));
CHECK(*guest_tab_html);
ui::TemplateReplacements replacements;
ui::TemplateReplacementsFromDictionaryValue(localized_strings, &replacements);
new_tab_guest_html_ = base::MakeRefCounted<base::RefCountedString>(
ReplaceTemplateExpressions(*guest_tab_html, replacements));
}
void NTPResourceCache::CreateNewTabIncognitoCSS(
const content::WebContents::Getter& wc_getter) {
auto* web_contents = wc_getter.Run();
const ui::NativeTheme* native_theme =
webui::GetNativeThemeDeprecated(web_contents);
DCHECK(native_theme);
const ui::ThemeProvider& tp = ThemeService::GetThemeProviderForProfile(
profile_->GetPrimaryOTRProfile(/*create_if_needed=*/true));
// Generate the replacements.
ui::TemplateReplacements substitutions;
// Cache-buster for background.
substitutions["themeId"] =
profile_->GetPrefs()->GetString(prefs::kCurrentThemeID);
// Colors.
const ui::ColorProvider& cp = web_contents->GetColorProvider();
substitutions["colorBackground"] = color_utils::SkColorToRgbaString(
GetThemeColor(native_theme, cp, kColorNewTabPageBackground));
substitutions["backgroundPosition"] = GetNewTabBackgroundPositionCSS(tp);
substitutions["backgroundTiling"] = GetNewTabBackgroundTilingCSS(tp);
// Get our template.
static const base::NoDestructor<scoped_refptr<base::RefCountedMemory>>
new_tab_theme_css(
ui::ResourceBundle::GetSharedInstance().LoadDataResourceBytes(
IDR_INCOGNITO_TAB_THEME_CSS));
CHECK(*new_tab_theme_css);
new_tab_incognito_css_ = base::MakeRefCounted<base::RefCountedString>(
ReplaceTemplateExpressions(*new_tab_theme_css, substitutions));
}
void NTPResourceCache::CreateNewTabCSS(
const content::WebContents::Getter& wc_getter) {
auto* web_contents = wc_getter.Run();
const ui::NativeTheme* native_theme =
webui::GetNativeThemeDeprecated(web_contents);
DCHECK(native_theme);
const ui::ThemeProvider& tp =
ThemeService::GetThemeProviderForProfile(profile_);
const ui::ColorProvider& cp = web_contents->GetColorProvider();
// Get our theme colors.
SkColor color_background =
GetThemeColor(native_theme, cp, kColorNewTabPageBackground);
SkColor color_text = GetThemeColor(native_theme, cp, kColorNewTabPageText);
SkColor color_text_light =
GetThemeColor(native_theme, cp, kColorNewTabPageTextLight);
SkColor color_section_border =
GetThemeColor(native_theme, cp, kColorNewTabPageSectionBorder);
// Generate the replacements.
ui::TemplateReplacements substitutions;
// Cache-buster for background.
substitutions["themeId"] =
profile_->GetPrefs()->GetString(prefs::kCurrentThemeID);
// Colors.
substitutions["colorBackground"] =
color_utils::SkColorToRgbaString(color_background);
substitutions["colorLink"] = color_utils::SkColorToRgbString(
GetThemeColor(native_theme, cp, kColorNewTabPageLink));
substitutions["backgroundPosition"] = GetNewTabBackgroundPositionCSS(tp);
substitutions["backgroundTiling"] = GetNewTabBackgroundTilingCSS(tp);
substitutions["colorTextRgba"] = color_utils::SkColorToRgbaString(color_text);
substitutions["colorTextLight"] =
color_utils::SkColorToRgbaString(color_text_light);
substitutions["colorSectionBorder"] =
color_utils::SkColorToRgbString(color_section_border);
substitutions["colorText"] = color_utils::SkColorToRgbString(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::NoDestructor<scoped_refptr<base::RefCountedMemory>>
new_tab_theme_css(
ui::ResourceBundle::GetSharedInstance().LoadDataResourceBytes(
IDR_NEW_TAB_4_THEME_CSS));
CHECK(*new_tab_theme_css);
new_tab_css_ = base::MakeRefCounted<base::RefCountedString>(
ReplaceTemplateExpressions(*new_tab_theme_css, substitutions));
}
void NTPResourceCache::OnPolicyChanged(const base::Value* previous,
const base::Value* current) {
new_tab_incognito_html_ = nullptr;
}
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