New animation framework

CodenameOne/src/com/codename1/io/NetworkManager.java

@@ -736,9 +736,9 @@ public int getTimeout() {
     }
 
     /**
-     * Adds a generic listener to a network error that is invoked before the exception is propogated.
+     * Adds a generic listener to a network error that is invoked before the exception is propagated.
      * Notice that this doesn't apply to server error codes!
-     * Consume the event in order to prevent it from propogating further.
+     * Consume the event in order to prevent it from propagating further.
      *
      * @param e callback will be invoked with the Exception as the source object
      */

CodenameOne/src/com/codename1/ui/AnimationManager.java

@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2012, Codename One and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Codename One designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *  
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ * 
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * Please contact Codename One through http://www.codenameone.com/ if you 
+ * need additional information or have any questions.
+ */
+
+package com.codename1.ui;
+
+import com.codename1.io.Util;
+import com.codename1.ui.animations.ComponentAnimation;
+import java.util.ArrayList;
+
+/**
+ * Animation manager concentrates all of the animations for a given form into a single place that allows us
+ * to manage all mutations to a Form in a way the prevents collisions between mutations. The one type of
+ * animation that isn't handled by this class is the form level transition, replace transitions are handled by this class.
+ *
+ * @author Shai Almog
+ */
+public final class AnimationManager {
+    private final Form parentForm;
+    private ArrayList<ComponentAnimation> anims = new ArrayList<ComponentAnimation>();
+
+    AnimationManager(Form parentForm) {
+        this.parentForm = parentForm;
+    }
+
+    /**
+     * Returns true if an animation is currently in progress
+     * @return true if an animation is currently in progress
+     */
+    public boolean isAnimating() {
+        return anims.size() > 0;
+    }
+
+    void updateAnimations() {
+        if(anims.size() > 0) {
+            ComponentAnimation c = anims.get(0);
+            if(c.isInProgress()) {
+                c.updateAnimationState();
+            } else {
+                c.updateAnimationState();
+                anims.remove(c);
+            }
+        }
+    }
+
+    void flush() {
+        while(anims.size() > 0) {
+            anims.get(0).flush();
+            anims.remove(0);
+        }
+    }
+
+    /**
+     * Adds the animation to the end to the animation queue
+     * @param an the animation object
+     */
+    public void addAnimation(ComponentAnimation an) {
+        anims.add(an);
+        Display.getInstance().notifyDisplay();
+    }
+
+    /**
+     * Adds the animation to the end of the animation queue and blocks the current thread until the animation
+     * completes 
+     * @param an the animation to perform 
+     */
+    public void addAnimationAndBlock(final ComponentAnimation an) {
+        final Object LOCK = new Object();
+        an.setNotifyLock(LOCK);
+        addAnimation(an);
+        Display.getInstance().invokeAndBlock(new Runnable() {
+            public void run() {
+                while(an.isInProgress()) {
+                    Util.wait(LOCK, 50);
+                }
+            }
+        });
+    }
+
+
+    /**
+     * Adds the animation to the end to the animation queue
+     * @param an the animation object
+     * @param callback invoked when the animation completes
+     */
+    public void addAnimation(ComponentAnimation an, Runnable callback) {
+        an.setOnCompletion(callback);
+        addAnimation(an);
+        Display.getInstance().notifyDisplay();
+    }
+}

CodenameOne/src/com/codename1/ui/Component.java

@@ -2227,6 +2227,18 @@ private Motion getAnimationMotion() {
         return animationMotion;
     }
 
+    /**
+     * Returns the animation manager of the parent form or null if this component isn't currently associated with a form
+     * @return the animation manager instance
+     */
+    public AnimationManager getAnimationManager() {
+        Form f = getComponentForm();
+        if(f == null) {
+            return null;
+        }
+        return f.getAnimationManager();
+    }
+
     /**
      * Scroll animation speed in milliseconds allowing a developer to slow down or accelerate
      * the smooth animation mode