| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/ui/webui/settings/font_handler.h" |
| |
| #include <stddef.h> |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/i18n/rtl.h" |
| #include "chrome/browser/browser_process.h" |
| #include "chrome/browser/extensions/extension_service.h" |
| #include "chrome/browser/extensions/extension_tab_util.h" |
| #include "chrome/browser/profiles/profile.h" |
| #include "chrome/browser/ui/browser_finder.h" |
| #include "chrome/common/pref_names.h" |
| #include "components/prefs/pref_service.h" |
| #include "content/public/browser/font_list_async.h" |
| #include "content/public/browser/web_ui.h" |
| #include "extensions/browser/extension_registry.h" |
| #include "extensions/browser/extension_system.h" |
| #include "extensions/common/extension_urls.h" |
| |
| #if defined(OS_MACOSX) |
| #include "chrome/browser/ui/webui/settings_utils.h" |
| #endif |
| |
| namespace { |
| |
| const char kAdvancedFontSettingsExtensionId[] = |
| "caclkomlalccbpcdllchkeecicepbmbm"; |
| |
| } // namespace |
| |
| namespace settings { |
| |
| FontHandler::FontHandler(content::WebUI* webui) |
| : extension_registry_observer_(this), |
| profile_(Profile::FromWebUI(webui)), |
| weak_ptr_factory_(this) { |
| #if defined(OS_MACOSX) |
| // Perform validation for saved fonts. |
| settings_utils::ValidateSavedFonts(profile_->GetPrefs()); |
| #endif |
| } |
| |
| FontHandler::~FontHandler() {} |
| |
| void FontHandler::RegisterMessages() { |
| web_ui()->RegisterMessageCallback( |
| "fetchFontsData", base::BindRepeating(&FontHandler::HandleFetchFontsData, |
| base::Unretained(this))); |
| web_ui()->RegisterMessageCallback( |
| "observeAdvancedFontExtensionAvailable", |
| base::BindRepeating( |
| &FontHandler::HandleObserveAdvancedFontExtensionAvailable, |
| base::Unretained(this))); |
| web_ui()->RegisterMessageCallback( |
| "openAdvancedFontSettings", |
| base::BindRepeating(&FontHandler::HandleOpenAdvancedFontSettings, |
| base::Unretained(this))); |
| } |
| |
| void FontHandler::OnJavascriptAllowed() { |
| extension_registry_observer_.Add( |
| extensions::ExtensionRegistry::Get(profile_)); |
| } |
| |
| void FontHandler::OnJavascriptDisallowed() { |
| extension_registry_observer_.RemoveAll(); |
| } |
| |
| void FontHandler::HandleFetchFontsData(const base::ListValue* args) { |
| CHECK_EQ(1U, args->GetSize()); |
| std::string callback_id; |
| CHECK(args->GetString(0, &callback_id)); |
| |
| content::GetFontListAsync(base::Bind(&FontHandler::FontListHasLoaded, |
| weak_ptr_factory_.GetWeakPtr(), |
| callback_id)); |
| } |
| |
| void FontHandler::HandleObserveAdvancedFontExtensionAvailable( |
| const base::ListValue* /*args*/) { |
| AllowJavascript(); |
| NotifyAdvancedFontSettingsAvailability(); |
| } |
| |
| void FontHandler::HandleOpenAdvancedFontSettings( |
| const base::ListValue* /*args*/) { |
| const extensions::Extension* extension = GetAdvancedFontSettingsExtension(); |
| if (!extension) |
| return; |
| extensions::ExtensionTabUtil::OpenOptionsPage( |
| extension, |
| chrome::FindBrowserWithWebContents(web_ui()->GetWebContents())); |
| } |
| |
| const extensions::Extension* FontHandler::GetAdvancedFontSettingsExtension() { |
| extensions::ExtensionService* service = |
| extensions::ExtensionSystem::Get(profile_)->extension_service(); |
| if (!service->IsExtensionEnabled(kAdvancedFontSettingsExtensionId)) |
| return nullptr; |
| return service->GetInstalledExtension(kAdvancedFontSettingsExtensionId); |
| } |
| |
| void FontHandler::NotifyAdvancedFontSettingsAvailability() { |
| FireWebUIListener("advanced-font-settings-installed", |
| base::Value(GetAdvancedFontSettingsExtension() != nullptr)); |
| } |
| |
| void FontHandler::OnExtensionLoaded(content::BrowserContext*, |
| const extensions::Extension*) { |
| NotifyAdvancedFontSettingsAvailability(); |
| } |
| |
| void FontHandler::OnExtensionUnloaded(content::BrowserContext*, |
| const extensions::Extension*, |
| extensions::UnloadedExtensionReason) { |
| NotifyAdvancedFontSettingsAvailability(); |
| } |
| |
| void FontHandler::FontListHasLoaded(std::string callback_id, |
| std::unique_ptr<base::ListValue> list) { |
| // Font list. Selects the directionality for the fonts in the given list. |
| for (size_t i = 0; i < list->GetSize(); i++) { |
| base::ListValue* font; |
| bool has_font = list->GetList(i, &font); |
| DCHECK(has_font); |
| |
| base::string16 value; |
| bool has_value = font->GetString(1, &value); |
| DCHECK(has_value); |
| |
| bool has_rtl_chars = base::i18n::StringContainsStrongRTLChars(value); |
| font->AppendString(has_rtl_chars ? "rtl" : "ltr"); |
| } |
| |
| base::DictionaryValue response; |
| response.Set("fontList", std::move(list)); |
| |
| GURL extension_url(extension_urls::GetWebstoreItemDetailURLPrefix()); |
| response.SetString( |
| "extensionUrl", |
| extension_url.Resolve(kAdvancedFontSettingsExtensionId).spec()); |
| |
| ResolveJavascriptCallback(base::Value(callback_id), response); |
| } |
| |
| } // namespace settings |