/*
* 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.
*/
package org.drools.guvnor.client.ruleeditor;
import org.drools.guvnor.client.common.DirtyableComposite;
import org.drools.guvnor.client.explorer.ClientFactory;
import org.drools.guvnor.client.rpc.RuleAsset;
import org.drools.guvnor.client.rpc.RuleContentText;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyDownEvent;
import com.google.gwt.event.dom.client.KeyDownHandler;
import com.google.gwt.user.client.ui.TextArea;
/**
* This is the default rule editor widget (just text editor based) - more to come later.
*/
public class DefaultRuleContentWidget extends DirtyableComposite
implements
EditorWidget {
private TextArea text;
final private RuleContentText data;
final private RuleAsset asset;
public DefaultRuleContentWidget(RuleAsset a,
RuleViewer v,
ClientFactory clientFactory) {
this( a );
}
public DefaultRuleContentWidget(RuleAsset a) {
this( a,
-1 );
}
public DefaultRuleContentWidget(RuleAsset a,
int visibleLines) {
asset = a;
data = (RuleContentText) asset.getContent();
if ( data.content == null ) {
data.content = "";
}
text = new TextArea();
text.setWidth( "100%" );
text.setVisibleLines( (visibleLines == -1) ? 16 : visibleLines );
text.setText( data.content );
text.getElement().setAttribute( "spellcheck",
"false" ); //NON-NLS
text.setStyleName( "default-text-Area" ); //NON-NLS
text.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
data.content = text.getText();
makeDirty();
}
} );
text.addKeyDownHandler( new KeyDownHandler() {
public void onKeyDown(KeyDownEvent event) {
if ( event.getNativeKeyCode() == KeyCodes.KEY_TAB ) {
int pos = text.getCursorPos();
insertText( "\t" );
text.setCursorPos( pos + 1 );
text.cancelKey();
text.setFocus( true );
}
}
} );
initWidget( text );
}
void insertText(String ins) {
int i = text.getCursorPos();
String left = text.getText().substring( 0,
i );
String right = text.getText().substring( i,
text.getText().length() );
text.setText( left + ins + right );
this.data.content = text.getText();
}
}