package net.sourceforge.phpdt.internal.debug.ui;

import net.sourceforge.phpeclipse.PHPeclipsePlugin;

import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.runtime.IPluginDescriptor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.swt.widgets.Display;

public class PHPDebugUiPlugin extends AbstractUIPlugin {
	public static final String PLUGIN_ID = "net.sourceforge.phpeclipse.debug.ui"; //$NON-NLS-1$
	protected static PHPDebugUiPlugin plugin;

	public PHPDebugUiPlugin(IPluginDescriptor descriptor) {
		super(descriptor);
		plugin = this;
	}

	public static IWorkbenchWindow getActiveWorkbenchWindow() {
		return getDefault().getWorkbench().getActiveWorkbenchWindow();
	}

	public static IWorkbenchPage getActivePage() {
		return PHPDebugUiPlugin.getActiveWorkbenchWindow().getActivePage();
	}

	public static PHPDebugUiPlugin getDefault() {
		return plugin;
	}

	public static IWorkspace getWorkspace() {
		return PHPeclipsePlugin.getWorkspace();
	}
	
	/**
	 * Convenience method which returns the unique identifier of this plugin.
	 */
	public static String getUniqueIdentifier()
	{
		if ( getDefault() == null )
		{
			// If the default instance is not yet initialized,
			// return a static identifier. This identifier must
			// match the plugin id defined in plugin.xml
			return PLUGIN_ID;
		}
		return getDefault().getDescriptor().getUniqueIdentifier();
	}
	
	/**
	 * Returns the standard display to be used. The method first checks, if
	 * the thread calling this method has an associated display. If so, this
	 * display is returned. Otherwise the method returns the default display.
	 */
	public static Display getStandardDisplay() {
		Display display;
		display= Display.getCurrent();
		if (display == null)
			display= Display.getDefault();
		return display;		
	}
	
	/**
	 * Returns the active workbench shell or <code>null</code> if none
	 * 
	 * @return the active workbench shell or <code>null</code> if none
	 */
	public static Shell getActiveWorkbenchShell() {
		IWorkbenchWindow window = getActiveWorkbenchWindow();
		if (window != null) {
			return window.getShell();
		}
		return null;
	}
	
	public static void errorDialog( String message, IStatus status )
		{
			log( status );
			Shell shell = getActiveWorkbenchShell();
			if ( shell != null )
			{
				ErrorDialog.openError( shell, "Error", message, status );
			}
		}

		public static void errorDialog( String message, Throwable t )
		{
			log( t );
			Shell shell = getActiveWorkbenchShell();
			if ( shell != null )
			{
				IStatus status = new Status( IStatus.ERROR, getUniqueIdentifier(), /*ICDebugUIConstants.INTERNAL_ERROR*/ 150, t.getMessage(), null ); //$NON-NLS-1$	
				ErrorDialog.openError( shell, "Error", message, status );
			}
		}			

	public static void log(IStatus status) {
		getDefault().getLog().log(status);
	}

	public static void log(Throwable e) {
		log(new Status(IStatus.ERROR, PLUGIN_ID, IStatus.ERROR, PHPDebugUiMessages.getString("RdtDebugUiPlugin.internalErrorOccurred"), e)); //$NON-NLS-1$
	}

//	protected void initializeDefaultPreferences(IPreferenceStore store) {
//		super.initializeDefaultPreferences(store);
//		
//		store.setDefault(RdtDebugUiConstants.PREFERENCE_KEYWORDS, getDefaultKeywords());
//	}

//	protected String getDefaultKeywords() {
//		return "class,def,end,if,module,new,puts,require,rescue,throw,while";
//	}
}