| // 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/callback_helpers.h" |
| #include "base/i18n/rtl.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "chrome/browser/browser_process.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" |
| |
| #if defined(OS_MAC) |
| #include "chrome/browser/ui/webui/settings/settings_utils.h" |
| #endif |
| |
| namespace settings { |
| |
| FontHandler::FontHandler(Profile* profile) { |
| #if defined(OS_MAC) |
| // 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))); |
| } |
| |
| void FontHandler::OnJavascriptAllowed() {} |
| |
| void FontHandler::OnJavascriptDisallowed() {} |
| |
| void FontHandler::HandleFetchFontsData(const base::ListValue* args) { |
| CHECK_EQ(1U, args->GetSize()); |
| std::string callback_id; |
| CHECK(args->GetString(0, &callback_id)); |
| |
| AllowJavascript(); |
| content::GetFontListAsync(base::BindOnce(&FontHandler::FontListHasLoaded, |
| weak_ptr_factory_.GetWeakPtr(), |
| callback_id)); |
| } |
| |
| void FontHandler::FontListHasLoaded(std::string callback_id, |
| std::unique_ptr<base::ListValue> list) { |
| base::Value::ListView list_view = list->GetList(); |
| // Font list. Selects the directionality for the fonts in the given list. |
| for (auto& i : list_view) { |
| DCHECK(i.is_list()); |
| base::Value::ConstListView font = i.GetList(); |
| |
| DCHECK(font.size() >= 2u && font[1].is_string()); |
| std::u16string value = base::UTF8ToUTF16(font[1].GetString()); |
| |
| bool has_rtl_chars = base::i18n::StringContainsStrongRTLChars(value); |
| i.Append(has_rtl_chars ? "rtl" : "ltr"); |
| } |
| |
| base::DictionaryValue response; |
| response.SetKey("fontList", base::Value::FromUniquePtrValue(std::move(list))); |
| |
| ResolveJavascriptCallback(base::Value(callback_id), response); |
| } |
| |
| } // namespace settings |