AppIconMouseListener.java

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 * Copyright (c) 2011 Bug Labs, Inc.
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package com.buglabs.bug.appui;

import java.awt.PopupMenu;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import com.buglabs.util.ui.IDesktopApp;

/**
 * This class handles logic of either calling IDesktopApp.click() or 
 * showing the menu based on timing of user interaction.
 * 
 * @author kgilmer
 *
 */
class AppIconMouseListener implements MouseListener {
	private static final long MENU_PRESS_TIMEOUT_MILLIS = 800;
	private final AppIcon icon;
	private long delta = 0;
	private final IDesktopApp app;
	private PopupMenu menu;

	/**
	 * @param icon icon
	 * @param app application
	 * @param menu menu
	 */
	public AppIconMouseListener(AppIcon icon, IDesktopApp app, PopupMenu menu) {
		this.icon = icon;
		this.app = app;
		this.menu = menu;
	}

	/* (non-Javadoc)
	 * @see java.awt.event.MouseListener#mouseClicked(java.awt.event.MouseEvent)
	 */
	public void mouseClicked(MouseEvent arg0) {
		if (app != null && System.currentTimeMillis() - delta < MENU_PRESS_TIMEOUT_MILLIS) {
			app.click();
		}
	}

	/* (non-Javadoc)
	 * @see java.awt.event.MouseListener#mouseEntered(java.awt.event.MouseEvent)
	 */
	public void mouseEntered(MouseEvent arg0) {
	}

	/* (non-Javadoc)
	 * @see java.awt.event.MouseListener#mouseExited(java.awt.event.MouseEvent)
	 */
	public void mouseExited(MouseEvent arg0) {
	}

	/* (non-Javadoc)
	 * @see java.awt.event.MouseListener#mousePressed(java.awt.event.MouseEvent)
	 */
	public void mousePressed(MouseEvent e) {
		delta = System.currentTimeMillis();
		icon.invert(icon.getGraphics());
	}

	/* (non-Javadoc)
	 * @see java.awt.event.MouseListener#mouseReleased(java.awt.event.MouseEvent)
	 */
	public void mouseReleased(MouseEvent e) {
		icon.revert(icon.getGraphics());
		if (System.currentTimeMillis() - delta > MENU_PRESS_TIMEOUT_MILLIS) {
			menu.show(e.getComponent(), e.getX(), e.getY());
		}
	}
}