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-rw-r--r--chromium/chrome/browser/resources/translate.js314
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diff --git a/chromium/chrome/browser/resources/translate.js b/chromium/chrome/browser/resources/translate.js
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--- a/chromium/chrome/browser/resources/translate.js
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-// Copyright (c) 2012 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.
-
-// This code is used in conjunction with the Google Translate Element script.
-// It is executed in an isolated world of a page to translate it from one
-// language to another.
-// It should be included in the page before the Translate Element script.
-
-var cr = cr || {};
-
-/**
- * An object to provide functions to interact with the Translate library.
- * @type {object}
- */
-cr.googleTranslate = (function() {
- /**
- * The Translate Element library's instance.
- * @type {object}
- */
- var lib;
-
- /**
- * A flag representing if the Translate Element library is initialized.
- * @type {boolean}
- */
- var libReady = false;
-
- /**
- * Error definitions for |errorCode|. See chrome/common/translate_errors.h
- * to modify the definition.
- * @const
- */
- var ERROR = {
- 'NONE': 0,
- 'INITIALIZATION_ERROR': 2,
- 'UNSUPPORTED_LANGUAGE': 4,
- 'TRANSLATION_ERROR': 6,
- 'TRANSLATION_TIMEOUT': 7,
- 'UNEXPECTED_SCRIPT_ERROR': 8,
- 'BAD_ORIGIN': 9,
- 'SCRIPT_LOAD_ERROR': 10
- };
-
- /**
- * Error code map from te.dom.DomTranslator.Error to |errorCode|.
- * See also go/dom_translator.js in google3.
- * @const
- */
- var TRANSLATE_ERROR_TO_ERROR_CODE_MAP = {
- 0: ERROR['NONE'],
- 1: ERROR['TRANSLATION_ERROR'],
- 2: ERROR['UNSUPPORTED_LANGUAGE']
- };
-
- /**
- * An error code happened in translate.js and the Translate Element library.
- */
- var errorCode = ERROR['NONE'];
-
- /**
- * A flag representing if the Translate Element has finished a translation.
- * @type {boolean}
- */
- var finished = false;
-
- /**
- * Counts how many times the checkLibReady function is called. The function
- * is called in every 100 msec and counted up to 6.
- * @type {number}
- */
- var checkReadyCount = 0;
-
- /**
- * Time in msec when this script is injected.
- * @type {number}
- */
- var injectedTime = performance.now();
-
- /**
- * Time in msec when the Translate Element library is loaded completely.
- * @type {number}
- */
- var loadedTime = 0.0;
-
- /**
- * Time in msec when the Translate Element library is initialized and ready
- * for performing translation.
- * @type {number}
- */
- var readyTime = 0.0;
-
- /**
- * Time in msec when the Translate Element library starts a translation.
- * @type {number}
- */
- var startTime = 0.0;
-
- /**
- * Time in msec when the Translate Element library ends a translation.
- * @type {number}
- */
- var endTime = 0.0;
-
- function checkLibReady() {
- if (lib.isAvailable()) {
- readyTime = performance.now();
- libReady = true;
- return;
- }
- if (checkReadyCount++ > 5) {
- errorCode = ERROR['TRANSLATION_TIMEOUT'];
- return;
- }
- setTimeout(checkLibReady, 100);
- }
-
- function onTranslateProgress(progress, opt_finished, opt_error) {
- finished = opt_finished;
- // opt_error can be 'undefined'.
- if (typeof opt_error == 'boolean' && opt_error) {
- // TODO(toyoshim): Remove boolean case once a server is updated.
- errorCode = ERROR['TRANSLATION_ERROR'];
- // We failed to translate, restore so the page is in a consistent state.
- lib.restore();
- } else if (typeof opt_error == 'number' && opt_error != 0) {
- errorCode = TRANSLATE_ERROR_TO_ERROR_CODE_MAP[opt_error];
- lib.restore();
- }
- if (finished)
- endTime = performance.now();
- }
-
- // Public API.
- return {
- /**
- * Whether the library is ready.
- * The translate function should only be called when |libReady| is true.
- * @type {boolean}
- */
- get libReady() {
- return libReady;
- },
-
- /**
- * Whether the current translate has finished successfully.
- * @type {boolean}
- */
- get finished() {
- return finished;
- },
-
- /**
- * Whether an error occured initializing the library of translating the
- * page.
- * @type {boolean}
- */
- get error() {
- return errorCode != ERROR['NONE'];
- },
-
- /**
- * Returns a number to represent error type.
- * @type {number}
- */
- get errorCode() {
- return errorCode;
- },
-
- /**
- * The language the page translated was in. Is valid only after the page
- * has been successfully translated and the original language specified to
- * the translate function was 'auto'. Is empty otherwise.
- * Some versions of Element library don't provide |getDetectedLanguage|
- * function. In that case, this function returns 'und'.
- * @type {boolean}
- */
- get sourceLang() {
- if (!libReady || !finished || errorCode != ERROR['NONE'])
- return '';
- if (!lib.getDetectedLanguage)
- return 'und'; // Defined as translate::kUnknownLanguageCode in C++.
- return lib.getDetectedLanguage();
- },
-
- /**
- * Time in msec from this script being injected to all server side scripts
- * being loaded.
- * @type {number}
- */
- get loadTime() {
- if (loadedTime == 0)
- return 0;
- return loadedTime - injectedTime;
- },
-
- /**
- * Time in msec from this script being injected to the Translate Element
- * library being ready.
- * @type {number}
- */
- get readyTime() {
- if (!libReady)
- return 0;
- return readyTime - injectedTime;
- },
-
- /**
- * Time in msec to perform translation.
- * @type {number}
- */
- get translationTime() {
- if (!finished)
- return 0;
- return endTime - startTime;
- },
-
- /**
- * Translate the page contents. Note that the translation is asynchronous.
- * You need to regularly check the state of |finished| and |errorCode| to
- * know if the translation finished or if there was an error.
- * @param {string} originalLang The language the page is in.
- * @param {string} targetLang The language the page should be translated to.
- * @return {boolean} False if the translate library was not ready, in which
- * case the translation is not started. True otherwise.
- */
- translate: function(originalLang, targetLang) {
- finished = false;
- errorCode = ERROR['NONE'];
- if (!libReady)
- return false;
- startTime = performance.now();
- try {
- lib.translatePage(originalLang, targetLang, onTranslateProgress);
- } catch (err) {
- console.error('Translate: ' + err);
- errorCode = ERROR['UNEXPECTED_SCRIPT_ERROR'];
- return false;
- }
- return true;
- },
-
- /**
- * Reverts the page contents to its original value, effectively reverting
- * any performed translation. Does nothing if the page was not translated.
- */
- revert: function() {
- lib.restore();
- },
-
- /**
- * Entry point called by the Translate Element once it has been injected in
- * the page.
- */
- onTranslateElementLoad: function() {
- loadedTime = performance.now();
- try {
- lib = google.translate.TranslateService({
- // translateApiKey is predefined by translate_script.cc.
- 'key': translateApiKey,
- 'useSecureConnection': true
- });
- translateApiKey = undefined;
- } catch (err) {
- errorCode = ERROR['INITIALIZATION_ERROR'];
- translateApiKey = undefined;
- return;
- }
- // The TranslateService is not available immediately as it needs to start
- // Flash. Let's wait until it is ready.
- checkLibReady();
- },
-
- /**
- * Entry point called by the Translate Element when it want to load an
- * external CSS resource into the page.
- * @param {string} url URL of an external CSS resource to load.
- */
- onLoadCSS: function(url) {
- var element = document.createElement('link');
- element.type = 'text/css';
- element.rel = 'stylesheet';
- element.charset = 'UTF-8';
- element.href = url;
- document.head.appendChild(element);
- },
-
- /**
- * Entry point called by the Translate Element when it want to load and run
- * an external JavaScript on the page.
- * @param {string} url URL of an external JavaScript to load.
- */
- onLoadJavascript: function(url) {
- // securityOrigin is predefined by translate_script.cc.
- if (url.indexOf(securityOrigin) != 0) {
- console.error('Translate: ' + url + ' is not allowed to load.');
- errorCode = ERROR['BAD_ORIGIN'];
- return;
- }
- var xhr = new XMLHttpRequest();
- xhr.open('GET', url, true);
- xhr.onreadystatechange = function() {
- if (this.readyState != this.DONE)
- return;
- if (this.status != 200) {
- errorCode = ERROR['SCRIPT_LOAD_ERROR'];
- return;
- }
- eval(this.responseText);
- }
- xhr.send();
- }
- };
-})();
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