/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* 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.client.screens.gadgets;
import javax.annotation.PostConstruct;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.dom.client.Document;
import com.google.gwt.event.logical.shared.AttachEvent;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.RequiresResize;
import com.google.gwt.user.client.ui.Widget;
import org.gwtbootstrap3.client.ui.html.Div;
import org.uberfire.client.annotations.WorkbenchPartView;
public abstract class AbstractGitHubStatsScreen extends Composite implements RequiresResize {
private static final int PADDING = 30;
protected Div panel = new Div();
protected JavaScriptObject graph;
protected boolean graphInitialized = false;
@PostConstruct
protected void setup() {
final String id = Document.get().createUniqueId();
panel.setId(id);
panel.addStyleName("text-center");
initWidget(panel);
panel.addAttachHandler(new AttachEvent.Handler() {
@Override
public void onAttachOrDetach(final AttachEvent event) {
if (event.isAttached() && graph == null) {
graph = generateGraph(panel.getId());
}
}
});
}
protected int getPadding() {
return PADDING;
}
public void initGraph() {
graphInitialized = true;
onResize();
}
@WorkbenchPartView
public Widget getView() {
return this;
}
@Override
public void onResize() {
int height = getParent().getOffsetHeight();
int width = getParent().getOffsetWidth();
setPixelSize(width,
height);
final int padding = getPadding();
int graphHeight = height < padding ? height : height - padding;
int graphWidth = width < padding ? width : width - padding;
if (graphInitialized && graph != null) {
resizeGraph(graph,
graphHeight,
graphWidth);
}
}
public native void resizeGraph(JavaScriptObject graph,
int graphHeight,
int graphWidth)/*-{
graph.resize({
height: graphHeight,
width: graphWidth
});
}-*/;
public abstract JavaScriptObject generateGraph(final String id);
}