Rename mount

native_client_sdk/src/examples/hello_nacl_mounts/example.js

-// 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.
-
-function moduleDidLoad() {
-  common.hideModule();
-}
-
-// Called by the common.js module.
-function domContentLoaded(name, tc, config, width, height) {
-  window.webkitStorageInfo.requestQuota(window.PERSISTENT, 1024*1024,
-      function(bytes) {
-        common.updateStatus(
-            'Allocated '+bytes+' bytes of persistant storage.');
-        common.createNaClModule(name, tc, config, width, height);
-        common.attachDefaultListeners();
-      },
-      function(e) { alert('Failed to allocate space') });
-}
-
-// Called by the common.js module.
-function attachListeners() {
-  var radioEls = document.querySelectorAll('input[type="radio"]');
-  for (var i = 0; i < radioEls.length; ++i) {
-    radioEls[i].addEventListener('click', onRadioClicked);
-  }
-
-  document.getElementById('fopenExecute').addEventListener('click', fopen);
-  document.getElementById('fcloseExecute').addEventListener('click', fclose);
-  document.getElementById('freadExecute').addEventListener('click', fread);
-  document.getElementById('fwriteExecute').addEventListener('click', fwrite);
-  document.getElementById('fseekExecute').addEventListener('click', fseek);
-}
-
-function onRadioClicked(e) {
-  var divId = this.id.slice(5);  // skip "radio"
-  var functionEls = document.querySelectorAll('.function');
-  for (var i = 0; i < functionEls.length; ++i) {
-    var visible = functionEls[i].id === divId;
-    if (functionEls[i].id === divId)
-      functionEls[i].removeAttribute('hidden');
-    else
-      functionEls[i].setAttribute('hidden');
-  }
-}
-
-function addFilenameToSelectElements(filehandle, filename) {
-  var text = '[' + filehandle + '] ' + filename;
-  var selectEls = document.querySelectorAll('select.file-handle');
-  for (var i = 0; i < selectEls.length; ++i) {
-    var optionEl = document.createElement('option');
-    optionEl.setAttribute('value', filehandle);
-    optionEl.appendChild(document.createTextNode(text));
-    selectEls[i].appendChild(optionEl);
-  }
-}
-
-function removeFilenameFromSelectElements(filehandle) {
-  var optionEls = document.querySelectorAll('select.file-handle > option');
-  for (var i = 0; i < optionEls.length; ++i) {
-    var optionEl = optionEls[i];
-    if (optionEl.value == filehandle) {
-      var selectEl = optionEl.parentNode;
-      selectEl.removeChild(optionEl);
-    }
-  }
-}
-
-var filehandle_map = {};
-
-function fopen(e) {
-  var filename = document.getElementById('fopenFilename').value;
-  var access = document.getElementById('fopenMode').value;
-  nacl_module.postMessage(makeCall('fopen', filename, access));
-}
-
-function fopen_result(filename, filehandle) {
-  filehandle_map[filehandle] = filename;
-
-  addFilenameToSelectElements(filehandle, filename)
-  logMessage('File ' + filename + ' opened successfully.');
-}
-
-function fclose(e) {
-  var filehandle = document.getElementById('fcloseHandle').value;
-  nacl_module.postMessage(makeCall('fclose', filehandle));
-}
-
-function fclose_result(filehandle) {
-  var filename = filehandle_map[filehandle];
-  removeFilenameFromSelectElements(filehandle, filename);
-  logMessage('File ' + filename + ' closed successfully.');
-}
-
-function fread(e) {
-  var filehandle = document.getElementById('freadHandle').value;
-  var numBytes = document.getElementById('freadBytes').value;
-  nacl_module.postMessage(makeCall('fread', filehandle, numBytes));
-}
-
-function fread_result(filehandle, data) {
-  var filename = filehandle_map[filehandle];
-  logMessage('Read "' + data + '" from file ' + filename + '.');
-}
-
-function fwrite(e) {
-  var filehandle = document.getElementById('fwriteHandle').value;
-  var data = document.getElementById('fwriteData').value;
-  nacl_module.postMessage(makeCall('fwrite', filehandle, data));
-}
-
-function fwrite_result(filehandle, bytes_written) {
-  var filename = filehandle_map[filehandle];
-  logMessage('Wrote ' + bytes_written + ' bytes to file ' + filename + '.');
-}
-
-function fseek(e) {
-  var filehandle = document.getElementById('fseekHandle').value;
-  var offset = document.getElementById('fseekOffset').value;
-  var whence = document.getElementById('fseekWhence').value;
-  nacl_module.postMessage(makeCall('fseek', filehandle, offset, whence));
-}
-
-function fseek_result(filehandle, filepos) {
-  var filename = filehandle_map[filehandle];
-  logMessage('Seeked to location ' + filepos + ' in file ' + filename + '.');
-}
-
-/**
- * Return true when |s| starts with the string |prefix|.
- *
- * @param {string} s The string to search.
- * @param {string} prefix The prefix to search for in |s|.
- */
-function startsWith(s, prefix) {
-  // indexOf would search the entire string, lastIndexOf(p, 0) only checks at
-  // the first index. See: http://stackoverflow.com/a/4579228
-  return s.lastIndexOf(prefix, 0) === 0;
-}
-
-function logMessage(msg) {
-  var logEl = document.getElementById('log');
-
-  // Perform some basic escaping.
-  msg = msg.replace(/&/g, '&amp;')
-           .replace(/</g, '&lt;')
-           .replace(/>/g, '&gt;')
-           .replace(/"/g, '&quot;')
-           .replace(/'/g, '&apos;');
-
-  logEl.innerHTML += msg + '<br>';
-}
-
-function makeCall(func) {
-  var message = func;
-  for (var i = 1; i < arguments.length; ++i) {
-    message += '\1' + arguments[i];
-  }
-
-  return message;
-}
-
-// Called by the common.js module.
-function handleMessage(message_event) {
-  var msg = message_event.data;
-  if (startsWith(msg, 'Error:')) {
-    logMessage(msg);
-  } else {
-    // Result from a function call.
-    var params = msg.split('\1');
-    var func_name = params[0];
-    var func_result_name = func_name + '_result';
-    var result_func = window[func_result_name];
-
-    if (!result_func) {
-      logMessage('Error: Bad message received from NaCl module.');
-      return;
-    }
-
-    result_func.apply(null, params.slice(1));
-  }
-}