/**
 * Copyright 2010 JBoss Inc
 *
 * 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.
 */

package org.drools.guvnor.client.common;

/*
 * Copyright 2005 JBoss Inc
 * 
 * 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 com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.Composite;

public abstract class DirtyableComposite extends Composite implements
		DirtyableWidget {
    
	protected boolean dirtyflag = false;
	
	public DirtyableComposite() {
	}

    public void onBrowserEvent(Event event) {
        super.onBrowserEvent( event );
    }

    /*
	 * (non-Javadoc)
	 * 
	 * @see org.drools.guvnor.client.common.isDirtable#isDirty()
	 */
	public boolean isDirty() {
		return this.dirtyflag;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.drools.guvnor.client.common.isDirtable#resetDirty()
	 */
	public void resetDirty() {
		this.dirtyflag = false;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.drools.guvnor.client.common.isDirtable#makeDirty()
	 */
	public void makeDirty() {
		this.dirtyflag = true;
	}

	public static native int getHeight() /*-{
	   var yScroll;

	   if ($wnd.innerHeight && $wnd.scrollMaxY) {	
	       yScroll = $wnd.innerHeight + $wnd.scrollMaxY;
	   }
	   else if ($doc.body.scrollHeight > $doc.body.offsetHeight){ // all but Explorer Mac
	       yScroll = $doc.body.scrollHeight;
	   }
	   else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
	   yScroll = $doc.body.offsetHeight;
	   }

	   var windowHeight;
	   if (self.innerHeight) {	// all except Explorer
	       windowHeight = self.innerHeight;
	   }
	   else if ($doc.documentElement && $doc.documentElement.clientHeight) { // Explorer 6 Strict Mode
	       windowHeight = $doc.documentElement.clientHeight;
	   }
	   else if ($doc.body) { // other Explorers
	       windowHeight = $doc.body.clientHeight;
	   }	

	   // for small pages with total height less then height of the viewport
	   if(yScroll < windowHeight){
	       pageHeight = windowHeight;
	   }
	   else { 
	       pageHeight = yScroll;
	   }
	   return pageHeight;
	}-*/;

	public static native int getWidth() /*-{
	   var xScroll;

	   if ($wnd.innerHeight && $wnd.scrollMaxY) {	
	       xScroll = $doc.body.scrollWidth;
	   }
	   else if ($doc.body.scrollHeight > $doc.body.offsetHeight){ // all but Explorer Mac
	       xScroll = $doc.body.scrollWidth;
	   }
	   else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
	       xScroll = $doc.body.offsetWidth;
	   }

	   var windowHeight;
	   if (self.innerHeight) {	// all except Explorer
	       windowWidth = self.innerWidth;
	   }
	   else if ($doc.documentElement && $doc.documentElement.clientHeight) { // Explorer 6 Strict Mode
	       windowWidth = $doc.documentElement.clientWidth;
	   }
	   else if ($doc.body) { // other Explorers
	       windowWidth = $doc.body.clientWidth;
	   }	

	   // for small pages with total width less then width of the viewport
	   if(xScroll < windowWidth){	
	       pageWidth = windowWidth;
	   }
	   else {
	       pageWidth = xScroll;
	   }
	   return pageWidth;
	}-*/;

}