Support rich line output in both speech and braille

chrome/browser/resources/chromeos/chromevox/braille/liblouis.js

 // Copyright 2014 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.
 
 /**
  * @fileoverview JavaScript shim for the liblouis Native Client wrapper.
  */
 
 goog.provide('cvox.LibLouis');
-
+goog.provide('cvox.LibLouis.FormType');
 
 /**
  * Encapsulates a liblouis Native Client instance in the page.
  * @constructor
  * @param {string} nmfPath Path to .nmf file for the module.
  * @param {string=} opt_tablesDir Path to tables directory.
  */
 cvox.LibLouis = function(nmfPath, opt_tablesDir) {
   /**
    * Path to .nmf file for the module.
@@ skipping 22 matching lines @@
 
   /**
    * Next message ID to be used. Incremented with each sent message.
    * @private {number}
    */
   this.nextMessageId_ = 1;
 };
 
 
 /**
+ * Constants taken from liblouis.h.
+ * Controls braille indicator insertion during translation.
+ * @enum {number}
+ */
+cvox.LibLouis.FormType = {
+  PLAIN_TEXT: 0,
+  ITALIC: 1,
+  UNDERLINE: 2,
+  BOLD: 4,
+  COMPUTER_BRAILLE: 8
+};
+
+
+/**
  * Set to {@code true} to enable debug logging of RPC messages.
  * @type {boolean}
  */
 cvox.LibLouis.DEBUG = false;
 
 
 /**
  * Attaches the Native Client wrapper to the DOM as a child of the provided
  * element, assumed to already be in the document.
  * @param {!Element} elem Desired parent element of the instance.
@@ skipping 169 matching lines @@
 
 /**
  * Translates text into braille cells.
  * @param {string} text Text to be translated.
  * @param {function(ArrayBuffer, Array<number>, Array<number>)} callback
  *     Callback for result.  Takes 3 parameters: the resulting cells,
  *     mapping from text to braille positions and mapping from braille to
  *     text positions.  If translation fails for any reason, all parameters are
  *     {@code null}.
  */
-cvox.LibLouis.Translator.prototype.translate = function(text, callback) {
+cvox.LibLouis.Translator.prototype.translate = function(
+    text, formTypeMap, callback) {
   if (!this.instance_.isAttached()) {
     callback(null /*cells*/, null /*textToBraille*/, null /*brailleToText*/);
     return;
   }
-  var message = {'table_names': this.tableNames_, 'text': text};
+  var message = {
+    'table_names': this.tableNames_,
+    'text': text,
+    form_type_map: formTypeMap
+  };
   this.instance_.rpc_('Translate', message, function(reply) {
     var cells = null;
     var textToBraille = null;
     var brailleToText = null;
     if (reply['success'] && goog.isString(reply['cells'])) {
       cells = cvox.LibLouis.Translator.decodeHexString_(reply['cells']);
       if (goog.isDef(reply['text_to_braille'])) {
         textToBraille = reply['text_to_braille'];
       }
       if (goog.isDef(reply['braille_to_text'])) {
@@ skipping 66 matching lines @@
  */
 cvox.LibLouis.Translator.encodeHexString_ = function(arrayBuffer) {
   var array = new Uint8Array(arrayBuffer);
   var hex = '';
   for (var i = 0; i < array.length; i++) {
     var b = array[i];
     hex += (b < 0x10 ? '0' : '') + b.toString(16);
   }
   return hex;
 };