/*
* Copyright 2015 JBoss, by Red Hat, 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.uberfire.ext.plugin.client.widget.split;
import com.google.gwt.dom.client.Style;
import com.google.gwt.event.dom.client.MouseDownEvent;
import com.google.gwt.event.dom.client.MouseMoveEvent;
import com.google.gwt.event.dom.client.MouseMoveHandler;
import com.google.gwt.user.client.ui.Widget;
import org.uberfire.mvp.Command;
public class VerticalSplit extends Splitter {
private double offset;
private Widget rightArea;
private Widget leftArea;
private Widget contentArea;
private Command onResize;
public VerticalSplit() {
super();
addDomHandler(new MouseMoveHandler() {
@Override
public void onMouseMove(MouseMoveEvent event) {
if (mouseDown) {
double leftWidthPct = ((event.getClientX() - getContentAbsoluteLeft() - offset) / getContentWidth()) * 100;
double rightWidthPct = 100 - leftWidthPct;
setLeftAreaWidth(leftWidthPct);
setRightAreaWidth(rightWidthPct);
getElement().getStyle().setLeft(leftArea.getOffsetWidth() - 3,
Style.Unit.PX);
onResize.execute();
event.preventDefault();
}
}
},
MouseMoveEvent.getType());
}
@Override
protected void buildOffset(MouseDownEvent event) {
offset = event.getClientX() - getAbsoluteLeft();
}
public void init(final Widget leftArea,
final Widget rightArea,
final Widget contentArea,
final Command onResize) {
this.leftArea = leftArea;
this.rightArea = rightArea;
this.contentArea = contentArea;
this.onResize = onResize;
}
private void setRightAreaWidth(double width) {
rightArea.setWidth(width + "%");
}
private void setLeftAreaWidth(double width) {
leftArea.setWidth(width + "%");
}
private int getContentWidth() {
return contentArea.getOffsetWidth();
}
private int getContentAbsoluteLeft() {
return contentArea.getAbsoluteLeft();
}
}