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package org.openjdk.jmc.rjmx.ui.internal;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;

import org.openjdk.jmc.rjmx.ui.RJMXUIPlugin;
import org.openjdk.jmc.ui.UIPlugin;
import org.openjdk.jmc.ui.preferences.PreferenceConstants;

public class AccessibleControlAction extends Action {

	private final IPropertyChangeListener m_propertyChangeListener;

	public AccessibleControlAction() {
		super(Messages.ToggleAccessibleControlAction_ACTION_NAME, IAction.AS_CHECK_BOX);
		setImageDescriptor(
				RJMXUIPlugin.getDefault().getMCImageDescriptor(IconConstants.ICON_ACCESSIBILITY_MODE_TOGGLE_ON));
		setDisabledImageDescriptor(
				RJMXUIPlugin.getDefault().getMCImageDescriptor(IconConstants.ICON_ACCESSIBILITY_MODE_TOGGLE_OFF));
		setToolTipText(Messages.ToggleAccessibleControlAction_TOOLTIP_TEXT);

		m_propertyChangeListener = new IPropertyChangeListener() {
			@Override
			public void propertyChange(PropertyChangeEvent event) {
				String property = event.getProperty();
				if (property.equals(PreferenceConstants.P_ACCESSIBILITY_MODE)) {
					setChecked(UIPlugin.getDefault().getAccessibilityMode());
					run();
				}
			}
		};
		UIPlugin.getDefault().getPreferenceStore().addPropertyChangeListener(m_propertyChangeListener);
		setChecked(UIPlugin.getDefault().getAccessibilityMode());
		run();
		setId("toggle.accessible"); //$NON-NLS-1$
	}

	public void dispose() {
		UIPlugin.getDefault().getPreferenceStore().removePropertyChangeListener(m_propertyChangeListener);
	}
}
