/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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 com.vaadin.client.ui.image;
import com.google.gwt.dom.client.NativeEvent;
import com.google.gwt.event.dom.client.LoadEvent;
import com.google.gwt.event.dom.client.LoadHandler;
import com.vaadin.client.communication.StateChangeEvent;
import com.vaadin.client.ui.AbstractComponentConnector;
import com.vaadin.client.ui.ClickEventHandler;
import com.vaadin.client.ui.VImage;
import com.vaadin.shared.MouseEventDetails;
import com.vaadin.shared.ui.AbstractEmbeddedState;
import com.vaadin.shared.ui.Connect;
import com.vaadin.shared.ui.image.ImageServerRpc;
import com.vaadin.shared.ui.image.ImageState;
@Connect(com.vaadin.ui.Image.class)
public class ImageConnector extends AbstractComponentConnector {
@Override
protected void init() {
super.init();
getWidget().addHandler(new LoadHandler() {
@Override
public void onLoad(LoadEvent event) {
getLayoutManager().setNeedsMeasure(ImageConnector.this);
}
}, LoadEvent.getType());
}
@Override
public VImage getWidget() {
return (VImage) super.getWidget();
}
@Override
public ImageState getState() {
return (ImageState) super.getState();
}
@Override
public void onStateChanged(StateChangeEvent stateChangeEvent) {
super.onStateChanged(stateChangeEvent);
clickEventHandler.handleEventHandlerRegistration();
String url = getResourceUrl(AbstractEmbeddedState.SOURCE_RESOURCE);
getWidget().setUrl(url != null ? url : "");
String alt = getState().alternateText;
// Some browsers turn a null alt text into a literal "null"
getWidget().setAltText(alt != null ? alt : "");
}
protected final ClickEventHandler clickEventHandler = new ClickEventHandler(
this) {
@Override
protected void fireClick(NativeEvent event,
MouseEventDetails mouseDetails) {
getRpcProxy(ImageServerRpc.class).click(mouseDetails);
}
};
}