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/*
 * 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.ui.events.ActionListener;

/**
 * A Button that is rendered by the native platform, over top of the light-weight components.
 * The action listener is also fired on the native main thread.
 * 
 * 

Currently this is only used in the Javascript port because there are some functions * that can only be performed in direct response to user action. Using a HeavyButton * rather than a button to invoke the action will solve this.

* *

WARNING: You can't use any concurrency (wait, sleep, etc..) in the action listener * or it will break Javascript. Only use this class if you know what you're doing.

* @author shannah */ class HeavyButton extends Button { Object peer; HeavyButton(String label) { super(label); if (Display.impl.requiresHeavyButtonForCopyToClipboard()) { peer = Display.impl.createHeavyButton(this); } } @Override public void addActionListener(ActionListener l) { super.addActionListener(l); if (peer != null) { Display.impl.addHeavyActionListener(peer, l); } } @Override public void removeActionListener(ActionListener l) { super.removeActionListener(l); if (peer != null) { Display.impl.removeHeavyActionListener(peer, l); } } private void updateHeavyBounds() { if (peer != null) { Display.impl.updateHeavyButtonBounds(peer, getAbsoluteX(), getAbsoluteY(), getWidth(), getHeight()); } } public void setWidth(int w) { super.setWidth(w); updateHeavyBounds(); } public void setHeight(int h) { super.setHeight(h); updateHeavyBounds(); } public void setX(int x) { super.setX(x); updateHeavyBounds(); } public void setY(int y) { super.setY(y); updateHeavyBounds(); } @Override protected void initComponent() { super.initComponent(); if (peer != null) { Display.impl.initHeavyButton(peer); } } @Override protected void deinitialize() { if (peer != null) { Display.impl.deinitializeHeavyButton(peer); } super.deinitialize(); } }




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