litesoft
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// This Source Code is Copyright & Licenced as indicated below package org.litesoft.GWT.client.widgets.nonpublic.external; /* * Copyright 2007 Mat Gessel <mat.gessel@gmail.com> * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy 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 limitations under * the License. */ import org.litesoft.GWT.client.*; import org.litesoft.core.*; import com.google.gwt.core.client.*; import com.google.gwt.user.client.*; public class MousePerformanceFilter extends MouseHandlerWrapper { private static final MoveStrategy s_defaultImpl = (MoveStrategy) GWT.create( MoveStrategy.class ); private MoveStrategy m_MoveStrategy = s_defaultImpl; public MousePerformanceFilter( MouseHandler delegate ) { super( delegate ); } public MoveStrategy getMoveStrategy() { return m_MoveStrategy; } public void setMoveStrategy( MoveStrategy impl ) { m_MoveStrategy = impl; } @Override public void onMouseMove( MouseEvent e ) { getMoveStrategy().step( getDelegate(), e ); } @Override public void onMouseUp( MouseEvent e ) { getMoveStrategy().finish(); super.onMouseUp( e ); } public static abstract class MoveStrategy { protected abstract void step( MouseHandler handler, MouseEvent e ); protected abstract void finish(); } public static class MoveStrategyImmediate extends MoveStrategy { @Override protected void step( MouseHandler handler, MouseEvent e ) { handler.onMouseMove( e ); } @Override protected void finish() { } } public static class MoveStrategyDeferred extends MoveStrategy { /** * Note: the timer is active if this field is not null */ private StepTimer m_timer = null; @Override protected void step( MouseHandler handler, MouseEvent moveEvent ) { if ( m_timer != null ) { m_timer.update( moveEvent ); } else { m_timer = new StepTimer( handler, moveEvent ); m_timer.schedule( 1 ); } } @Override protected void finish() { if ( m_timer != null ) { m_timer.cancel(); m_timer.run(); } } private class StepTimer extends Timer { private final MouseHandler m_handler; private MouseEvent m_moveEvent; public StepTimer( MouseHandler gesture, MouseEvent moveEvent ) { m_handler = gesture; update( moveEvent ); } public void update( MouseEvent e ) { m_moveEvent = e; } @Override public void run() { m_timer = null; m_handler.onMouseMove( m_moveEvent ); } } } public static class MoveStrategyMozilla extends MoveStrategy { private final MoveStrategy m_strategy; public MoveStrategyMozilla() { if ( Platform.Other.equals( UserAgent.getInstance().getPlatform() ) ) { m_strategy = new MoveStrategyDeferred(); } else { m_strategy = new MoveStrategyImmediate(); } } @Override protected void step( MouseHandler handler, MouseEvent moveEvent ) { m_strategy.step( handler, moveEvent ); } @Override protected void finish() { m_strategy.finish(); } } } |
Commits for litesoft/trunk/Java/GWT/Client/src/org/litesoft/GWT/client/widgets/nonpublic/external/MousePerformanceFilter.java
Revision | Author | Commited | Message |
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950 Diff | GeorgeS | Thu 19 Jun, 2014 17:57:04 +0000 | New Lines |
948 Diff | GeorgeS | Sat 07 Jun, 2014 23:42:39 +0000 | Jusefuls Formatter Updated to New Code Format |
151 Diff | GeorgeS | Thu 17 Mar, 2011 04:16:22 +0000 | |
49 Diff | GeorgeS | Mon 12 Apr, 2010 02:59:10 +0000 | License Text |
23 Diff | GeorgeS | Wed 24 Feb, 2010 00:34:32 +0000 | |
2 | GeorgeS | Sun 07 Feb, 2010 12:50:58 +0000 |