[gwt-contrib] Change in gwt[master]: Adds a module to revert GWT.runAsync to do immediate callbac...

Goktug Gokdogan Fri, 07 Jun 2013 15:35:39 -0700

Goktug Gokdogan has uploaded a new change for review.


  https://gwt-review.googlesource.com/3310

Change subject: Adds a module to revert GWT.runAsync to do immediatecallbacks in consecutive calls.

......................................................................

Adds a module to revert GWT.runAsync to do immediate callbacks inconsecutive calls.

This is for backward compatibility until a major release. It introduces amodulethat can be inherited by user module to revert back GWT.runAsync to oldbehavior.


Change-Id: If3a54663d6d857ca294c99a1a99084328748996d
---
A user/src/com/google/gwt/core/SynchronousFragmentLoadCallback.gwt.xml
M user/src/com/google/gwt/core/client/impl/AsyncFragmentLoader.java
A user/src/com/google/gwt/core/client/impl/OnSuccessExecutor.java
A user/src/com/google/gwt/core/client/impl/SynchronousOnSuccessExecutor.java
M user/test/com/google/gwt/core/client/impl/AsyncFragmentLoaderTest.java
5 files changed, 114 insertions(+), 30 deletions(-)

diff --gita/user/src/com/google/gwt/core/SynchronousFragmentLoadCallback.gwt.xmlb/user/src/com/google/gwt/core/SynchronousFragmentLoadCallback.gwt.xml

new file mode 100644
index 0000000..1a37fb2
--- /dev/null
+++ b/user/src/com/google/gwt/core/SynchronousFragmentLoadCallback.gwt.xml
@@ -0,0 +1,24 @@

+++++++++++++

++

+

+
+<module>

+ <replace-withclass="com.google.gwt.core.client.impl.SynchronousOnSuccessExecutor">+ <when-type-isclass="com.google.gwt.core.client.impl.OnSuccessExecutor"/>

+  </replace-with>
+</module>
\ No newline at end of file

diff --gita/user/src/com/google/gwt/core/client/impl/AsyncFragmentLoader.javab/user/src/com/google/gwt/core/client/impl/AsyncFragmentLoader.java

index 77ab67f..d6ac682 100644
--- a/user/src/com/google/gwt/core/client/impl/AsyncFragmentLoader.java
+++ b/user/src/com/google/gwt/core/client/impl/AsyncFragmentLoader.java
@@ -18,8 +18,6 @@
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.core.client.JavaScriptObject;
 import com.google.gwt.core.client.RunAsyncCallback;
-import com.google.gwt.core.client.Scheduler;
-import com.google.gwt.core.client.Scheduler.ScheduledCommand;

 /**
  * <p>
@@ -57,7 +55,7 @@
    * been installed, so that {@link AsyncFragmentLoader} can distinguish
    * successful from unsuccessful downloads.
    */
-  public static interface LoadTerminatedHandler {
+  public interface LoadTerminatedHandler {
     void loadTerminated(Throwable reason);
   }

@@ -297,12 +295,15 @@
    */

private static AsyncFragmentLoader makeBrowserLoader(int numFragments,int initialLoad[]) {

     if (GWT.isClient()) {

- return new AsyncFragmentLoader(numFragments, initialLoad,(LoadingStrategy) GWT- .create(LoadingStrategy.class), (Logger)GWT.create(Logger.class));

+      return new AsyncFragmentLoader(numFragments, initialLoad,

+ (LoadingStrategy) GWT.create(LoadingStrategy.class), (Logger)GWT.create(Logger.class),

+          (OnSuccessExecutor) GWT.create(OnSuccessExecutor.class));
     } else {
       return null;
     }
   }
+
+  private final OnSuccessExecutor onSuccessExecutor;

   /**
    * Callbacks indexed by fragment number.
@@ -371,11 +372,12 @@
   private final BoundedIntQueue requestedExclusives;

   public AsyncFragmentLoader(int numEntries, int[] initialLoadSequence,
-      LoadingStrategy loadingStrategy, Logger logger) {

+ LoadingStrategy loadingStrategy, Logger logger, OnSuccessExecutorexecutor) {

     this.numEntries = numEntries;
     this.initialLoadSequence = initialLoadSequence;
     this.loadingStrategy = loadingStrategy;
     this.logger = logger;
+    this.onSuccessExecutor = executor;
     int numEntriesPlusOne = numEntries + 1;
     this.allCallbacks = new Object[numEntriesPlusOne][];
     this.requestedExclusives = new BoundedIntQueue(numEntriesPlusOne);
@@ -589,7 +591,7 @@

private void runAsyncImpl(final int fragment, RunAsyncCallback callback){

     if (isLoaded[fragment]) {
       assert allCallbacks[fragment] == null;
-      executeOnSuccessAsynchronously(callback);
+      this.onSuccessExecutor.execute(this, callback);
       return;
     }

@@ -617,18 +619,7 @@
     }
   }

-  /**
-   * Executes onSuccess asynchronously.
-   */

- private void executeOnSuccessAsynchronously(final RunAsyncCallbackcallback) {

-    Scheduler.get().scheduleDeferred(new ScheduledCommand() {
-      @Override public void execute() {
-        executeOnSuccess(callback);
-      }
-    });
-  }
-
-  private void executeOnSuccess(RunAsyncCallback callback) {
+  void executeOnSuccess0(RunAsyncCallback callback) {
     /*

* Calls on {@link RunAsyncCallback#onSuccess} from {@linkAsyncFragmentLoader} is special* treated (See RescueVisitor in ControlFlowAnalyzer) so that codesplitter will not follow themdiff --gita/user/src/com/google/gwt/core/client/impl/OnSuccessExecutor.javab/user/src/com/google/gwt/core/client/impl/OnSuccessExecutor.java

new file mode 100644
index 0000000..883cd2c
--- /dev/null
+++ b/user/src/com/google/gwt/core/client/impl/OnSuccessExecutor.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2013 Google Inc.
+ *

+ * Licensed under the Apache License, Version 2.0 (the "License"); you maynot+ * use this file except in compliance with the License. You may obtain acopy of

+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software

+ * distributed under the License is distributed on an "AS IS" BASIS,WITHOUT

+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

+ * License for the specific language governing permissions and limitationsunder

+ * the License.
+ */
+package com.google.gwt.core.client.impl;
+
+import com.google.gwt.core.client.RunAsyncCallback;
+import com.google.gwt.core.client.Scheduler;
+import com.google.gwt.core.client.Scheduler.ScheduledCommand;
+
+/**

+ * An asynchronous {@link RunAsyncCallback#onSuccess()} executor using adeferred command.

+ */
+class OnSuccessExecutor {
+
+  /**
+   * Executes onSuccess asynchronously.
+   */

+ void execute(final AsyncFragmentLoader fragmentLoader, finalRunAsyncCallback callback) {

+    Scheduler.get().scheduleDeferred(new ScheduledCommand() {
+      @Override
+      public void execute() {
+        fragmentLoader.executeOnSuccess0(callback);
+      }
+    });
+  }
+}

diff --gita/user/src/com/google/gwt/core/client/impl/SynchronousOnSuccessExecutor.javab/user/src/com/google/gwt/core/client/impl/SynchronousOnSuccessExecutor.java

new file mode 100644
index 0000000..6c16465
--- /dev/null

+++b/user/src/com/google/gwt/core/client/impl/SynchronousOnSuccessExecutor.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2013 Google Inc.
+ *

+ * Licensed under the Apache License, Version 2.0 (the "License"); you maynot+ * use this file except in compliance with the License. You may obtain acopy of

+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software

+ * distributed under the License is distributed on an "AS IS" BASIS,WITHOUT

+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

+ * License for the specific language governing permissions and limitationsunder

+ * the License.
+ */
+package com.google.gwt.core.client.impl;
+
+import com.google.gwt.core.client.RunAsyncCallback;
+
+/**

+ * An synchronous {@link RunAsyncCallback#onSuccess()} executor thatimmediately calls onSuccess.

+ */
+class SynchronousOnSuccessExecutor extends OnSuccessExecutor {
+
+  /**
+   * Executes onSuccess synchronously.
+   */

+ void execute(final AsyncFragmentLoader fragmentLoader, finalRunAsyncCallback callback) {

+    fragmentLoader.executeOnSuccess0(callback);
+  }
+}

diff --gita/user/test/com/google/gwt/core/client/impl/AsyncFragmentLoaderTest.javab/user/test/com/google/gwt/core/client/impl/AsyncFragmentLoaderTest.java

index cac5944..d1ebd8e 100644
--- a/user/test/com/google/gwt/core/client/impl/AsyncFragmentLoaderTest.java
+++ b/user/test/com/google/gwt/core/client/impl/AsyncFragmentLoaderTest.java
@@ -152,7 +152,7 @@
     MockProgressLogger progress = new MockProgressLogger();
     int numEntries = 5;
     AsyncFragmentLoader loader = new AsyncFragmentLoader(numEntries,
-        new int[] {}, reqs, progress);
+        new int[] {}, reqs, progress, null);

     loader.inject(1, NULL_ERROR_HANDLER);
     reqs.assertFragmentsRequested(numEntries);
@@ -184,7 +184,7 @@
     MockProgressLogger progress = new MockProgressLogger();
     int numEntries = 10;