Adding emscripten files

emscripten/js/espeakng.js

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2014-2016 Eitan Isaacson
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see: <http://www.gnu.org/licenses/>.
+ */
+
+function eSpeakNG(worker_path, ready_cb) {
+  this.worker = new Worker(worker_path);
+  this.ready = false;
+  this.worker.onmessage = function(e) {
+    if (e.data !== 'ready') {
+      return;
+    }
+    this.worker.onmessage = null;
+    this.worker.addEventListener('message', this);
+    this.ready = true;
+    if (ready_cb) {
+      ready_cb();
+    }
+  }.bind(this);
+}
+
+eSpeakNG.prototype.handleEvent = function (evt) {
+  var callback = evt.data.callback;
+  if (callback && this[callback]) {
+    this[callback].apply(this, evt.data.result);
+    if (evt.data.done) {
+      delete this[callback];
+    }
+    return;
+  }
+};
+
+function _createAsyncMethod(method) {
+  return function() {
+    var lastArg = arguments[arguments.length - 1];
+    var message = { method: method, args: Array.prototype.slice.call(arguments, 0) };
+    if (typeof lastArg == 'function') {
+      var callback = '_' + method + '_' + Math.random().toString().substring(2) +'_cb';
+      this[callback] = lastArg;
+      message.args.pop();
+      message.callback = callback;
+    }
+    this.worker.postMessage(message);
+  };
+}
+
+for (var method of [
+    'list_voices',
+    'get_rate',
+    'get_pitch',
+    'set_rate',
+    'set_pitch',
+    'set_voice',
+    'synthesize'
+    ]) {
+  eSpeakNG.prototype[method] = _createAsyncMethod(method);
+}