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// Copyright 2016 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_tiles_internals_ui.h"
#include <memory>
#include <string>
#include <string_view>
#include <vector>
#include "base/functional/bind.h"
#include "build/build_config.h"
#include "chrome/browser/favicon/favicon_service_factory.h"
#include "chrome/browser/history/top_sites_factory.h"
#include "chrome/browser/ntp_tiles/chrome_most_visited_sites_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/search_engines/template_url_service_factory.h"
#include "chrome/common/url_constants.h"
#include "components/grit/ntp_tiles_internals_resources.h"
#include "components/grit/ntp_tiles_internals_resources_map.h"
#include "components/history/core/browser/top_sites.h"
#include "components/image_fetcher/core/image_fetcher_impl.h"
#include "components/ntp_tiles/features.h"
#include "components/ntp_tiles/icon_cacher.h"
#include "components/ntp_tiles/most_visited_sites.h"
#include "components/ntp_tiles/webui/ntp_tiles_internals_message_handler.h"
#include "components/ntp_tiles/webui/ntp_tiles_internals_message_handler_client.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/web_ui.h"
#include "content/public/browser/web_ui_data_source.h"
#include "content/public/browser/web_ui_message_handler.h"
#include "services/network/public/mojom/content_security_policy.mojom.h"
#include "ui/webui/webui_util.h"
#if BUILDFLAG(IS_ANDROID)
#include "base/feature_list.h"
#include "chrome/browser/flags/android/chrome_feature_list.h"
#endif
#if !BUILDFLAG(IS_ANDROID)
#include "chrome/browser/ui/webui/new_tab_page/ntp_pref_names.h"
#include "components/prefs/pref_service.h"
#endif
namespace {
// The implementation for the chrome://ntp-tiles-internals page.
class ChromeNTPTilesInternalsMessageHandlerClient
: public content::WebUIMessageHandler,
public ntp_tiles::NTPTilesInternalsMessageHandlerClient {
public:
// |favicon_service| must not be null and must outlive this object.
explicit ChromeNTPTilesInternalsMessageHandlerClient(
favicon::FaviconService* favicon_service)
: handler_(favicon_service) {}
ChromeNTPTilesInternalsMessageHandlerClient(
const ChromeNTPTilesInternalsMessageHandlerClient&) = delete;
ChromeNTPTilesInternalsMessageHandlerClient& operator=(
const ChromeNTPTilesInternalsMessageHandlerClient&) = delete;
private:
// content::WebUIMessageHandler:
void RegisterMessages() override;
// ntp_tiles::NTPTilesInternalsMessageHandlerClient
bool SupportsNTPTiles() override;
std::unique_ptr<ntp_tiles::MostVisitedSites> MakeMostVisitedSites() override;
PrefService* GetPrefs() override;
void RegisterMessageCallback(
std::string_view message,
base::RepeatingCallback<void(const base::Value::List&)> callback)
override;
void CallJavascriptFunctionSpan(
std::string_view name,
base::span<const base::ValueView> values) override;
ntp_tiles::NTPTilesInternalsMessageHandler handler_;
};
void ChromeNTPTilesInternalsMessageHandlerClient::RegisterMessages() {
handler_.RegisterMessages(this);
}
bool ChromeNTPTilesInternalsMessageHandlerClient::SupportsNTPTiles() {
Profile* profile = Profile::FromWebUI(web_ui());
return !(profile->IsGuestSession() || profile->IsOffTheRecord());
}
std::unique_ptr<ntp_tiles::MostVisitedSites>
ChromeNTPTilesInternalsMessageHandlerClient::MakeMostVisitedSites() {
auto most_visited_sites = ChromeMostVisitedSitesFactory::NewForProfile(
Profile::FromWebUI(web_ui()));
#if BUILDFLAG(IS_ANDROID)
// Custom links on Android: ntp_prefs::kNtpShortcutsType is
// unavailable. Use feature list instead.
most_visited_sites->EnableTileTypes(
ntp_tiles::MostVisitedSites::EnableTileTypesOptions().with_custom_links(
base::FeatureList::IsEnabled(
chrome::android::kMostVisitedTilesCustomization)));
#else
// Custom links on Desktop.
// TODO(crbug.com/438304256): Add `enable_enterprise_shortcuts` as a parameter
// to support enterprise shortcuts.
const ntp_tiles::TileType type = static_cast<ntp_tiles::TileType>(
GetPrefs()->GetInteger(ntp_prefs::kNtpShortcutsType));
const bool enterprise_shortcuts_feature_enabled =
base::FeatureList::IsEnabled(ntp_tiles::kNtpEnterpriseShortcuts);
// If the enterprise shortcuts feature is disabled, but the preference is set
// to enterprise shortcuts, treat MostVisitedSites as if enterpise shortcuts
// is disabled and custom links is enabled. This may occur if the user is
// moved in and out of the experiment.
const bool custom_links_enabled =
type == ntp_tiles::TileType::kCustomLinks ||
(type == ntp_tiles::TileType::kEnterpriseShortcuts &&
!enterprise_shortcuts_feature_enabled);
const bool enterprise_shortcuts_enabled =
type == ntp_tiles::TileType::kEnterpriseShortcuts &&
enterprise_shortcuts_feature_enabled;
most_visited_sites->EnableTileTypes(
ntp_tiles::MostVisitedSites::EnableTileTypesOptions()
.with_custom_links(custom_links_enabled)
.with_enterprise_shortcuts(enterprise_shortcuts_enabled));
#endif
return most_visited_sites;
}
PrefService* ChromeNTPTilesInternalsMessageHandlerClient::GetPrefs() {
return Profile::FromWebUI(web_ui())->GetPrefs();
}
void ChromeNTPTilesInternalsMessageHandlerClient::RegisterMessageCallback(
std::string_view message,
base::RepeatingCallback<void(const base::Value::List&)> callback) {
web_ui()->RegisterMessageCallback(message, std::move(callback));
}
void ChromeNTPTilesInternalsMessageHandlerClient::CallJavascriptFunctionSpan(
std::string_view name,
base::span<const base::ValueView> values) {
web_ui()->CallJavascriptFunctionUnsafe(name, values);
}
void CreateAndAddNTPTilesInternalsHTMLSource(Profile* profile) {
content::WebUIDataSource* source = content::WebUIDataSource::CreateAndAdd(
profile, chrome::kChromeUINTPTilesInternalsHost);
webui::SetupWebUIDataSource(
source,
base::span<const webui::ResourcePath>(kNtpTilesInternalsResources),
IDR_NTP_TILES_INTERNALS_NTP_TILES_INTERNALS_HTML);
source->OverrideContentSecurityPolicy(
network::mojom::CSPDirectiveName::ScriptSrc,
"script-src chrome://resources 'self';");
source->OverrideContentSecurityPolicy(
network::mojom::CSPDirectiveName::TrustedTypes,
"trusted-types lit-html-desktop;");
}
} // namespace
NTPTilesInternalsUI::NTPTilesInternalsUI(content::WebUI* web_ui)
: WebUIController(web_ui) {
Profile* profile = Profile::FromWebUI(web_ui);
CreateAndAddNTPTilesInternalsHTMLSource(profile);
web_ui->AddMessageHandler(
std::make_unique<ChromeNTPTilesInternalsMessageHandlerClient>(
FaviconServiceFactory::GetForProfile(
profile, ServiceAccessType::EXPLICIT_ACCESS)));
}
NTPTilesInternalsUI::~NTPTilesInternalsUI() = default;
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