Dart: Futures -> Callbacks.

mojo/dart/packages/mojo_services/lib/input/input.mojom.dart

 // 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.
 
 library input_mojom;
 import 'dart:async';
 import 'package:mojo/bindings.dart' as bindings;
 import 'package:mojo/core.dart' as core;
 import 'package:mojo/mojo/bindings/types/service_describer.mojom.dart' as service_describer;
 
 
 
 class _InputClientOnBackButtonParams extends bindings.Struct {
   static const List<bindings.StructDataHeader> kVersions = const [
     const bindings.StructDataHeader(8, 0)
   ];
 
   _InputClientOnBackButtonParams() : super(kVersions.last.size);
 
+  _InputClientOnBackButtonParams.init(
+  ) : super(kVersions.last.size);
+
   static _InputClientOnBackButtonParams deserialize(bindings.Message message) {
     var decoder = new bindings.Decoder(message);
     var result = decode(decoder);
     if (decoder.excessHandles != null) {
       decoder.excessHandles.forEach((h) => h.close());
     }
     return result;
   }
 
   static _InputClientOnBackButtonParams decode(bindings.Decoder decoder0) {
@@ skipping 38 matching lines @@
 }
 
 
 class InputClientOnBackButtonResponseParams extends bindings.Struct {
   static const List<bindings.StructDataHeader> kVersions = const [
     const bindings.StructDataHeader(8, 0)
   ];
 
   InputClientOnBackButtonResponseParams() : super(kVersions.last.size);
 
+  InputClientOnBackButtonResponseParams.init(
+  ) : super(kVersions.last.size);
+
   static InputClientOnBackButtonResponseParams deserialize(bindings.Message message) {
     var decoder = new bindings.Decoder(message);
     var result = decode(decoder);
     if (decoder.excessHandles != null) {
       decoder.excessHandles.forEach((h) => h.close());
     }
     return result;
   }
 
   static InputClientOnBackButtonResponseParams decode(bindings.Decoder decoder0) {
@@ skipping 39 matching lines @@
 
 
 class _InputServiceSetClientParams extends bindings.Struct {
   static const List<bindings.StructDataHeader> kVersions = const [
     const bindings.StructDataHeader(16, 0)
   ];
   InputClientInterface client = null;
 
   _InputServiceSetClientParams() : super(kVersions.last.size);
 
+  _InputServiceSetClientParams.init(
+    InputClientInterface this.client
+  ) : super(kVersions.last.size);
+
   static _InputServiceSetClientParams deserialize(bindings.Message message) {
     var decoder = new bindings.Decoder(message);
     var result = decode(decoder);
     if (decoder.excessHandles != null) {
       decoder.excessHandles.forEach((h) => h.close());
     }
     return result;
   }
 
   static _InputServiceSetClientParams decode(bindings.Decoder decoder0) {
@@ skipping 45 matching lines @@
 
   Map toJson() {
     throw new bindings.MojoCodecError(
         'Object containing handles cannot be encoded to JSON.');
   }
 }
 
 const int _inputClientMethodOnBackButtonName = 0;
 
 class _InputClientServiceDescription implements service_describer.ServiceDescription {
-  dynamic getTopLevelInterface([Function responseFactory]) =>
-      responseFactory(null);
+  void getTopLevelInterface(Function responder) {
+    responder(null);
+  }
 
-  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) =>
-      responseFactory(null);
+  void getTypeDefinition(String typeKey, Function responder) {
+    responder(null);
+  }
 
-  dynamic getAllTypeDefinitions([Function responseFactory]) =>
-      responseFactory(null);
+  void getAllTypeDefinitions(Function responder) {
+    responder(null);
+  }
 }
 
 abstract class InputClient {
   static const String serviceName = null;
 
   static service_describer.ServiceDescription _cachedServiceDescription;
   static service_describer.ServiceDescription get serviceDescription {
     if (_cachedServiceDescription == null) {
       _cachedServiceDescription = new _InputClientServiceDescription();
     }
     return _cachedServiceDescription;
   }
 
   static InputClientProxy connectToService(
       bindings.ServiceConnector s, String url, [String serviceName]) {
     InputClientProxy p = new InputClientProxy.unbound();
     String name = serviceName ?? InputClient.serviceName;
     if ((name == null) || name.isEmpty) {
       throw new core.MojoApiError(
           "If an interface has no ServiceName, then one must be provided.");
     }
     s.connectToService(url, p, name);
     return p;
   }
-  dynamic onBackButton([Function responseFactory = null]);
+  void onBackButton(void callback());
 }
 
 abstract class InputClientInterface
     implements bindings.MojoInterface<InputClient>,
                InputClient {
   factory InputClientInterface([InputClient impl]) =>
       new InputClientStub.unbound(impl);
   factory InputClientInterface.fromEndpoint(
       core.MojoMessagePipeEndpoint endpoint,
       [InputClient impl]) =>
@@ skipping 22 matching lines @@
 
   void handleResponse(bindings.ServiceMessage message) {
     switch (message.header.type) {
       case _inputClientMethodOnBackButtonName:
         var r = InputClientOnBackButtonResponseParams.deserialize(
             message.payload);
         if (!message.header.hasRequestId) {
           proxyError("Expected a message with a valid request Id.");
           return;
         }
-        Completer c = completerMap[message.header.requestId];
-        if (c == null) {
+        Function callback = callbackMap[message.header.requestId];
+        if (callback == null) {
           proxyError(
               "Message had unknown request Id: ${message.header.requestId}");
           return;
         }
-        completerMap.remove(message.header.requestId);
-        if (c.isCompleted) {
-          proxyError("Response completer already completed");
-          return;
-        }
-        c.complete(r);
+        callbackMap.remove(message.header.requestId);
+        callback();
         break;
       default:
         proxyError("Unexpected message type: ${message.header.type}");
         close(immediate: true);
         break;
     }
   }
 
   InputClient get impl => null;
   set impl(InputClient _) {
@@ skipping 22 matching lines @@
   InputClientProxy.unbound()
       : super(new _InputClientProxyControl.unbound());
 
   static InputClientProxy newFromEndpoint(
       core.MojoMessagePipeEndpoint endpoint) {
     assert(endpoint.setDescription("For InputClientProxy"));
     return new InputClientProxy.fromEndpoint(endpoint);
   }
 
 
-  dynamic onBackButton([Function responseFactory = null]) {
+  void onBackButton(void callback()) {
     var params = new _InputClientOnBackButtonParams();
-    return ctrl.sendMessageWithRequestId(
+    ctrl.sendMessageWithRequestId(
         params,
         _inputClientMethodOnBackButtonName,
         -1,
-        bindings.MessageHeader.kMessageExpectsResponse);
+        bindings.MessageHeader.kMessageExpectsResponse,
+        callback);
   }
 }
 
 class _InputClientStubControl
     extends bindings.StubMessageHandler
     implements bindings.StubControl<InputClient> {
   InputClient _impl;
 
   _InputClientStubControl.fromEndpoint(
       core.MojoMessagePipeEndpoint endpoint, [InputClient impl])
       : super.fromEndpoint(endpoint, autoBegin: impl != null) {
     _impl = impl;
   }
 
   _InputClientStubControl.fromHandle(
       core.MojoHandle handle, [InputClient impl])
       : super.fromHandle(handle, autoBegin: impl != null) {
     _impl = impl;
   }
 
   _InputClientStubControl.unbound([this._impl]) : super.unbound();
 
   String get serviceName => InputClient.serviceName;
 
 
-  InputClientOnBackButtonResponseParams _inputClientOnBackButtonResponseParamsFactory() {
-    var result = new InputClientOnBackButtonResponseParams();
-    return result;
+  Function _inputClientOnBackButtonResponseParamsResponder(
+      int requestId) {
+  return () {
+      var result = new InputClientOnBackButtonResponseParams();
+      sendResponse(buildResponseWithId(
+          result,
+          _inputClientMethodOnBackButtonName,
+          requestId,
+          bindings.MessageHeader.kMessageIsResponse));
+    };
   }
 
-  dynamic handleMessage(bindings.ServiceMessage message) {
+  void handleMessage(bindings.ServiceMessage message) {
     if (bindings.ControlMessageHandler.isControlMessage(message)) {
-      return bindings.ControlMessageHandler.handleMessage(this,
-                                                          0,
-                                                          message);
+      bindings.ControlMessageHandler.handleMessage(
+          this, 0, message);
+      return;
     }
     if (_impl == null) {
       throw new core.MojoApiError("$this has no implementation set");
     }
     switch (message.header.type) {
       case _inputClientMethodOnBackButtonName:
-        var response = _impl.onBackButton(_inputClientOnBackButtonResponseParamsFactory);
-        if (response is Future) {
-          return response.then((response) {
-            if (response != null) {
-              return buildResponseWithId(
-                  response,
-                  _inputClientMethodOnBackButtonName,
-                  message.header.requestId,
-                  bindings.MessageHeader.kMessageIsResponse);
-            }
-          });
-        } else if (response != null) {
-          return buildResponseWithId(
-              response,
-              _inputClientMethodOnBackButtonName,
-              message.header.requestId,
-              bindings.MessageHeader.kMessageIsResponse);
-        }
+        _impl.onBackButton(_inputClientOnBackButtonResponseParamsResponder(message.header.requestId));
         break;
       default:
         throw new bindings.MojoCodecError("Unexpected message name");
         break;
     }
-    return null;
   }
 
   InputClient get impl => _impl;
   set impl(InputClient d) {
     if (d == null) {
       throw new core.MojoApiError("$this: Cannot set a null implementation");
     }
     if (isBound && (_impl == null)) {
       beginHandlingEvents();
     }
@@ skipping 33 matching lines @@
       core.MojoHandle handle, [InputClient impl])
       : super(new _InputClientStubControl.fromHandle(handle, impl));
 
   static InputClientStub newFromEndpoint(
       core.MojoMessagePipeEndpoint endpoint) {
     assert(endpoint.setDescription("For InputClientStub"));
     return new InputClientStub.fromEndpoint(endpoint);
   }
 
 
-  dynamic onBackButton([Function responseFactory = null]) {
-    return impl.onBackButton(responseFactory);
+  void onBackButton(void callback()) {
+    return impl.onBackButton(callback);
   }
 }
 
 const int _inputServiceMethodSetClientName = 0;
 
 class _InputServiceServiceDescription implements service_describer.ServiceDescription {
-  dynamic getTopLevelInterface([Function responseFactory]) =>
-      responseFactory(null);
+  void getTopLevelInterface(Function responder) {
+    responder(null);
+  }
 
-  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) =>
-      responseFactory(null);
+  void getTypeDefinition(String typeKey, Function responder) {
+    responder(null);
+  }
 
-  dynamic getAllTypeDefinitions([Function responseFactory]) =>
-      responseFactory(null);
+  void getAllTypeDefinitions(Function responder) {
+    responder(null);
+  }
 }
 
 abstract class InputService {
   static const String serviceName = "input::InputService";
 
   static service_describer.ServiceDescription _cachedServiceDescription;
   static service_describer.ServiceDescription get serviceDescription {
     if (_cachedServiceDescription == null) {
       _cachedServiceDescription = new _InputServiceServiceDescription();
     }
@@ skipping 116 matching lines @@
       : super.fromHandle(handle, autoBegin: impl != null) {
     _impl = impl;
   }
 
   _InputServiceStubControl.unbound([this._impl]) : super.unbound();
 
   String get serviceName => InputService.serviceName;
 
 
 
-  dynamic handleMessage(bindings.ServiceMessage message) {
+  void handleMessage(bindings.ServiceMessage message) {
     if (bindings.ControlMessageHandler.isControlMessage(message)) {
-      return bindings.ControlMessageHandler.handleMessage(this,
-                                                          0,
-                                                          message);
+      bindings.ControlMessageHandler.handleMessage(
+          this, 0, message);
+      return;
     }
     if (_impl == null) {
       throw new core.MojoApiError("$this has no implementation set");
     }
     switch (message.header.type) {
       case _inputServiceMethodSetClientName:
         var params = _InputServiceSetClientParams.deserialize(
             message.payload);
         _impl.setClient(params.client);
         break;
       default:
         throw new bindings.MojoCodecError("Unexpected message name");
         break;
     }
-    return null;
   }
 
   InputService get impl => _impl;
   set impl(InputService d) {
     if (d == null) {
       throw new core.MojoApiError("$this: Cannot set a null implementation");
     }
     if (isBound && (_impl == null)) {
       beginHandlingEvents();
     }
@@ skipping 40 matching lines @@
   }
 
 
   void setClient(InputClientInterface client) {
     return impl.setClient(client);
   }
 }