[NaCl SDK] rename nacl_io demo.

native_client_sdk/src/examples/demo/nacl_io/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();
-}
-
-function $(id) {
-  return document.getElementById(id);
-}
-
-// Called by the common.js module.
-function domContentLoaded(name, tc, config, width, height) {
-  navigator.webkitPersistentStorage.requestQuota(1024 * 1024,
-      function(bytes) {
-        common.updateStatus(
-            'Allocated ' + bytes + ' bytes of persistant storage.');
-        common.attachDefaultListeners();
-        common.createNaClModule(name, tc, config, width, height);
-      },
-      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);
-  }
-
-  // Wire up the 'click' event for each function's button.
-  var functionEls = document.querySelectorAll('.function');
-  for (var i = 0; i < functionEls.length; ++i) {
-    var functionEl = functionEls[i];
-    var id = functionEl.getAttribute('id');
-    var buttonEl = functionEl.querySelector('button');
-
-    // The function name matches the element id.
-    var func = window[id];
-    buttonEl.addEventListener('click', func);
-  }
-
-  $('pipe_input_box').addEventListener('keypress', onPipeInput)
-  $('pipe_output').disabled = true;
-
-  $('pipe_name').addEventListener('change',
-                                  function() { $('pipe_output').value = ''; })
-}
-
-// Called with keypress events on the pipe input box
-function onPipeInput(e) {
-  // Create an arraybuffer containing the 16-bit char code
-  // from the keypress event.
-  var buffer = new ArrayBuffer(1*2);
-  var bufferView = new Uint16Array(buffer);
-  bufferView[0] = e.charCode;
-
-  // Pass the buffer in a dictionary over the NaCl module
-  var pipeSelect = $('pipe_name');
-  var pipeName = pipeSelect[pipeSelect.selectedIndex].value;
-  var message = {
-    pipe: pipeName,
-    operation: 'write',
-    payload: buffer,
-  };
-  nacl_module.postMessage(message);
-  e.preventDefault();
-  return false;
-}
-
-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 addNameToSelectElements(cssClass, handle, name) {
-  var text = '[' + handle + '] ' + name;
-  var selectEls = document.querySelectorAll(cssClass);
-  for (var i = 0; i < selectEls.length; ++i) {
-    var optionEl = document.createElement('option');
-    optionEl.setAttribute('value', handle);
-    optionEl.appendChild(document.createTextNode(text));
-    selectEls[i].appendChild(optionEl);
-  }
-}
-
-function removeNameFromSelectElements(cssClass, handle) {
-  var optionEls = document.querySelectorAll(cssClass + ' > option');
-  for (var i = 0; i < optionEls.length; ++i) {
-    var optionEl = optionEls[i];
-    if (optionEl.value == handle) {
-      var selectEl = optionEl.parentNode;
-      selectEl.removeChild(optionEl);
-    }
-  }
-}
-
-var filehandle_map = {};
-var dirhandle_map = {};
-
-function fopen(e) {
-  var filename = $('fopenFilename').value;
-  var access = $('fopenMode').value;
-  postCall('fopen', filename, access, function(filename, filehandle) {
-    filehandle_map[filehandle] = filename;
-
-    addNameToSelectElements('.file-handle', filehandle, filename);
-    common.logMessage('File ' + filename + ' opened successfully.');
-  });
-}
-
-function fclose(e) {
-  var filehandle = parseInt($('fcloseHandle').value, 10);
-  postCall('fclose', filehandle, function(filehandle) {
-    var filename = filehandle_map[filehandle];
-    removeNameFromSelectElements('.file-handle', filehandle, filename);
-    common.logMessage('File ' + filename + ' closed successfully.');
-  });
-}
-
-function fread(e) {
-  var filehandle = parseInt($('freadHandle').value, 10);
-  var numBytes = parseInt($('freadBytes').value, 10);
-  postCall('fread', filehandle, numBytes, function(filehandle, data) {
-    var filename = filehandle_map[filehandle];
-    common.logMessage('Read "' + data + '" from file ' + filename + '.');
-  });
-}
-
-function fwrite(e) {
-  var filehandle = parseInt($('fwriteHandle').value, 10);
-  var data = $('fwriteData').value;
-  postCall('fwrite', filehandle, data, function(filehandle, bytesWritten) {
-    var filename = filehandle_map[filehandle];
-    common.logMessage('Wrote ' + bytesWritten + ' bytes to file ' + filename +
-        '.');
-  });
-}
-
-function fseek(e) {
-  var filehandle = parseInt($('fseekHandle').value, 10);
-  var offset = parseInt($('fseekOffset').value, 10);
-  var whence = parseInt($('fseekWhence').value, 10);
-  postCall('fseek', filehandle, offset, whence, function(filehandle, filepos) {
-    var filename = filehandle_map[filehandle];
-    common.logMessage('Seeked to location ' + filepos + ' in file ' + filename +
-        '.');
-  });
-}
-
-function fflush(e) {
-  var filehandle = parseInt($('fflushHandle').value, 10);
-  postCall('fflush', filehandle, function(filehandle, filepos) {
-    var filename = filehandle_map[filehandle];
-    common.logMessage('flushed ' + filename + '.');
-  });
-}
-
-function stat(e) {
-  var filename = $('statFilename').value;
-  postCall('stat', filename, function(filename, size) {
-    common.logMessage('File ' + filename + ' has size ' + size + '.');
-  });
-}
-
-function opendir(e) {
-  var dirname = $('opendirDirname').value;
-  postCall('opendir', dirname, function(dirname, dirhandle) {
-    dirhandle_map[dirhandle] = dirname;
-
-    addNameToSelectElements('.dir-handle', dirhandle, dirname);
-    common.logMessage('Directory ' + dirname + ' opened successfully.');
-  });
-}
-
-function readdir(e) {
-  var dirhandle = parseInt($('readdirHandle').value, 10);
-  postCall('readdir', dirhandle, function(dirhandle, ino, name) {
-    var dirname = dirhandle_map[dirhandle];
-    if (ino === undefined) {
-      common.logMessage('End of directory.');
-    } else {
-      common.logMessage('Read entry ("' + name + '", ino = ' + ino +
-                        ') from directory ' + dirname + '.');
-    }
-  });
-}
-
-function closedir(e) {
-  var dirhandle = parseInt($('closedirHandle').value, 10);
-  postCall('closedir', dirhandle, function(dirhandle) {
-    var dirname = dirhandle_map[dirhandle];
-    delete dirhandle_map[dirhandle];
-
-    removeNameFromSelectElements('.dir-handle', dirhandle, dirname);
-    common.logMessage('Directory ' + dirname + ' closed successfully.');
-  });
-}
-
-function mkdir(e) {
-  var dirname = $('mkdirDirname').value;
-  var mode = parseInt($('mkdirMode').value, 10);
-  postCall('mkdir', dirname, mode, function(dirname) {
-    common.logMessage('Directory ' + dirname + ' created successfully.');
-  });
-}
-
-function rmdir(e) {
-  var dirname = $('rmdirDirname').value;
-  postCall('rmdir', dirname, function(dirname) {
-    common.logMessage('Directory ' + dirname + ' removed successfully.');
-  });
-}
-
-function chdir(e) {
-  var dirname = $('chdirDirname').value;
-  postCall('chdir', dirname, function(dirname) {
-    common.logMessage('Changed directory to: ' + dirname + '.');
-  });
-}
-
-function getcwd(e) {
-  postCall('getcwd', function(dirname) {
-    common.logMessage('getcwd: ' + dirname + '.');
-  });
-}
-
-function getaddrinfo(e) {
-  var name = $('getaddrinfoName').value;
-  var family = $('getaddrinfoFamily').value;
-  postCall('getaddrinfo', name, family, function(name, addrType) {
-    common.logMessage('getaddrinfo returned successfully');
-    common.logMessage('ai_cannonname = ' + name + '.');
-    var count = 1;
-    for (var i = 1; i < arguments.length; i+=2) {
-      var msg = 'Address number ' + count + ' = ' + arguments[i] +
-                ' (' + arguments[i+1] + ')';
-      common.logMessage(msg);
-      count += 1;
-    }
-  });
-}
-
-function gethostbyname(e) {
-  var name = $('gethostbynameName').value;
-  postCall('gethostbyname', name, function(name, addrType) {
-    common.logMessage('gethostbyname returned successfully');
-    common.logMessage('h_name = ' + name + '.');
-    common.logMessage('h_addr_type = ' + addrType + '.');
-    for (var i = 2; i < arguments.length; i++) {
-      common.logMessage('Address number ' + (i-1) + ' = ' + arguments[i] + '.');
-    }
-  });
-}
-
-function connect(e) {
-  var host = $('connectHost').value;
-  var port = parseInt($('connectPort').value, 10);
-  postCall('connect', host, port, function(sockhandle) {
-    common.logMessage('connected');
-    addNameToSelectElements('.sock-handle', sockhandle, '[socket]');
-  });
-}
-
-function recv(e) {
-  var handle = parseInt($('recvHandle').value, 10);
-  var bufferSize = parseInt($('recvBufferSize').value, 10);
-  postCall('recv', handle, bufferSize, function(messageLen, message) {
-    common.logMessage("received " + messageLen + ' bytes: ' + message);
-  });
-}
-
-function send(e) {
-  var handle = parseInt($('sendHandle').value, 10);
-  var message = $('sendMessage').value;
-  postCall('send', handle, message, function(sentBytes) {
-    common.logMessage("sent bytes: " + sentBytes);
-  });
-}
-
-function close(e) {
-  var handle = parseInt($('closeHandle').value, 10);
-  postCall('close', handle, function(sock) {
-    removeNameFromSelectElements('.sock-handle', sock, "[socket]");
-    common.logMessage("closed socket: " + sock);
-  });
-}
-
-var funcToCallback = {};
-
-function postCall(func) {
-  var callback = arguments[arguments.length - 1];
-  funcToCallback[func] = callback;
-
-  nacl_module.postMessage({
-    cmd: func,
-    args: Array.prototype.slice.call(arguments, 1, -1)
-  });
-}
-
-function ArrayBufferToString(buf) {
-  return String.fromCharCode.apply(null, new Uint16Array(buf));
-}
-
-// Called by the common.js module.
-function handleMessage(message_event) {
-  var data = message_event.data;
-  if ((typeof(data) === 'string' || data instanceof String)) {
-    common.logMessage(data);
-  } else if (data instanceof Object) {
-    var pipeName = data['pipe']
-    if (pipeName !== undefined) {
-      // Message for JavaScript I/O pipe
-      var operation = data['operation'];
-      if (operation == 'write') {
-        $('pipe_output').value += ArrayBufferToString(data['payload']);
-      } else if (operation == 'ack') {
-        common.logMessage(pipeName + ": ack:" + data['payload']);
-      } else {
-        common.logMessage('Got unexpected pipe operation: ' + operation);
-      }
-    } else {
-      // Result from a function call.
-      var params = data.args;
-      var funcName = data.cmd;
-      var callback = funcToCallback[funcName];
-
-      if (!callback) {
-        common.logMessage('Error: Bad message ' + funcName +
-                          ' received from NaCl module.');
-        return;
-      }
-
-      delete funcToCallback[funcName];
-      callback.apply(null, params);
-    }
-  } else {
-    common.logMessage('Error: Unknow message `' + data +
-                      '` received from NaCl module.');
-  }
-}