Revert of Introduce InterfaceEndpointClient(IEC), InterfaceEndpointHandle and

mojo/public/js/lib/interface_endpoint_client.js

-// Copyright 2017 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.
-
-define("mojo/public/js/lib/interface_endpoint_client", [
-  "console",
-  "mojo/public/js/codec",
-  "mojo/public/js/lib/control_message_handler",
-  "mojo/public/js/lib/control_message_proxy",
-  "mojo/public/js/lib/interface_endpoint_handle",
-  "mojo/public/js/validator",
-  "timer",
-], function(console,
-            codec,
-            controlMessageHandler,
-            controlMessageProxy,
-            interfaceEndpointHandle,
-            validator,
-            timer) {
-
-  var ControlMessageHandler = controlMessageHandler.ControlMessageHandler;
-  var ControlMessageProxy = controlMessageProxy.ControlMessageProxy;
-  var MessageReader = codec.MessageReader;
-  var Validator = validator.Validator;
-  var InterfaceEndpointHandle = interfaceEndpointHandle.InterfaceEndpointHandle;
-
-  function InterfaceEndpointClient(interfaceEndpointHandle, receiver,
-      interfaceVersion) {
-    this.controller_ = null;
-    this.encounteredError_ = false;
-    this.handle_ = interfaceEndpointHandle;
-    this.incomingReceiver_ = receiver;
-
-    if (interfaceVersion !== undefined) {
-      this.controlMessageHandler_ = new ControlMessageHandler(
-          interfaceVersion);
-    } else {
-      this.controlMessageProxy_ = new ControlMessageProxy(this);
-    }
-
-    this.nextRequestID_ = 0;
-    this.completers_ = new Map();
-    this.payloadValidators_ = [];
-    this.connectionErrorHandler_ = null;
-
-    if (interfaceEndpointHandle.pendingAssociation()) {
-      interfaceEndpointHandle.setAssociationEventHandler(
-          this.onAssociationEvent.bind(this));
-    } else {
-      this.initControllerIfNecessary_();
-    }
-  }
-
-  InterfaceEndpointClient.prototype.initControllerIfNecessary_ = function() {
-    if (this.controller_ || this.handle_.pendingAssociation()) {
-      return;
-    }
-
-    this.controller_ = this.handle_.groupController().attachEndpointClient(
-        this.handle_, this);
-  };
-
-  InterfaceEndpointClient.prototype.onAssociationEvent = function(
-      associationEvent) {
-    if (associationEvent ===
-        InterfaceEndpointHandle.AssociationEvent.ASSOCIATED) {
-      this.initControllerIfNecessary_();
-    } else if (associationEvent ===
-        InterfaceEndpointHandle.AssociationEvent
-                               .PEER_CLOSED_BEFORE_ASSOCIATION) {
-      timer.createOneShot(0, this.notifyError.bind(this,
-          this.handle_.disconnectReason()));
-    }
-  };
-
-  InterfaceEndpointClient.prototype.passHandle = function() {
-    if (!this.handle_.isValid()) {
-      return new InterfaceEndpointHandle();
-    }
-
-    // Used to clear the previously set callback.
-    this.handle_.setAssociationEventHandler(undefined);
-
-    if (this.controller_) {
-      this.controller_ = null;
-      this.handle_.groupController().detachEndpointClient(this.handle_);
-    }
-    var handle = this.handle_;
-    this.handle_ = null;
-    return handle;
-  };
-
-  InterfaceEndpointClient.prototype.close = function(reason) {
-    var handle = this.passHandle();
-    handle.reset(reason);
-  };
-
-  InterfaceEndpointClient.prototype.accept = function(message) {
-    if (this.encounteredError_) {
-      return false;
-    }
-
-    this.initControllerIfNecessary_();
-    return this.controller_.sendMessage(message);
-  };
-
-  InterfaceEndpointClient.prototype.acceptAndExpectResponse = function(
-      message) {
-    if (this.encounteredError_) {
-      return Promise.reject();
-    }
-
-    this.initControllerIfNecessary_();
-
-    // Reserve 0 in case we want it to convey special meaning in the future.
-    var requestID = this.nextRequestID_++;
-    if (requestID === 0)
-      requestID = this.nextRequestID_++;
-
-    message.setRequestID(requestID);
-    var result = this.controller_.sendMessage(message);
-    if (!result)
-      return Promise.reject(Error("Connection error"));
-
-    var completer = {};
-    this.completers_.set(requestID, completer);
-    return new Promise(function(resolve, reject) {
-      completer.resolve = resolve;
-      completer.reject = reject;
-    });
-  };
-
-  InterfaceEndpointClient.prototype.setPayloadValidators = function(
-      payloadValidators) {
-    this.payloadValidators_ = payloadValidators;
-  };
-
-  InterfaceEndpointClient.prototype.setIncomingReceiver = function(receiver) {
-    this.incomingReceiver_ = receiver;
-  };
-
-  InterfaceEndpointClient.prototype.setConnectionErrorHandler = function(
-      handler) {
-    this.connectionErrorHandler_ = handler;
-  };
-
-  InterfaceEndpointClient.prototype.handleIncomingMessage_ = function(
-      message) {
-    var noError = validator.validationError.NONE;
-    var messageValidator = new Validator(message);
-    var err = noError;
-    for (var i = 0; err === noError && i < this.payloadValidators_.length; ++i)
-      err = this.payloadValidators_[i](messageValidator);
-
-    if (err == noError) {
-      return this.handleValidIncomingMessage_(message);
-    } else {
-      validator.reportValidationError(err);
-      return false;
-    }
-  };
-
-  InterfaceEndpointClient.prototype.handleValidIncomingMessage_ = function(
-      message) {
-    if (validator.isTestingMode()) {
-      return true;
-    }
-
-    if (this.encounteredError_) {
-      return false;
-    }
-
-    var ok = false;
-
-    if (message.expectsResponse()) {
-      if (controlMessageHandler.isControlMessage(message) &&
-          this.controlMessageHandler_) {
-        ok = this.controlMessageHandler_.acceptWithResponder(message, this);
-      } else if (this.incomingReceiver_) {
-        ok = this.incomingReceiver_.acceptWithResponder(message, this);
-      }
-    } else if (message.isResponse()) {
-      var reader = new MessageReader(message);
-      var requestID = reader.requestID;
-      var completer = this.completers_.get(requestID);
-      if (completer) {
-        this.completers_.delete(requestID);
-        completer.resolve(message);
-        ok = true;
-      } else {
-        console.log("Unexpected response with request ID: " + requestID);
-      }
-    } else {
-      if (controlMessageHandler.isControlMessage(message) &&
-          this.controlMessageHandler_) {
-        ok = this.controlMessageHandler_.accept(message);
-      } else if (this.incomingReceiver_) {
-        ok = this.incomingReceiver_.accept(message);
-      }
-    }
-    return ok;
-  };
-
-  InterfaceEndpointClient.prototype.notifyError = function(reason) {
-    if (this.encounteredError_) {
-      return;
-    }
-    this.encounteredError_ = true;
-
-    this.completers_.forEach(function(value) {
-      value.reject();
-    });
-    this.completers_.clear();  // Drop any responders.
-
-    if (this.connectionErrorHandler_) {
-      this.connectionErrorHandler_(reason);
-    }
-  };
-
-  InterfaceEndpointClient.prototype.queryVersion = function() {
-    return this.controlMessageProxy_.queryVersion();
-  };
-
-  InterfaceEndpointClient.prototype.requireVersion = function(version) {
-    this.controlMessageProxy_.requireVersion(version);
-  };
-
-  var exports = {};
-  exports.InterfaceEndpointClient = InterfaceEndpointClient;
-
-  return exports;
-});