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Vaadin is a web application framework for Rich Internet Applications (RIA).
Vaadin enables easy development and maintenance of fast and
secure rich web
applications with a stunning look and feel and a wide browser support.
It features a server-side architecture with the majority of the logic
running
on the server. Ajax technology is used at the browser-side to ensure a
rich
and interactive user experience.
/*
* Copyright 2000-2016 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.connectors;
import com.google.gwt.event.shared.HandlerRegistration;
import com.vaadin.client.communication.JsonDecoder;
import com.vaadin.client.metadata.TypeDataStore;
import com.vaadin.client.renderers.ClickableRenderer.RendererClickHandler;
import com.vaadin.client.renderers.ImageRenderer;
import com.vaadin.shared.communication.URLReference;
import com.vaadin.shared.ui.Connect;
import com.vaadin.shared.ui.grid.renderers.ImageRendererState;
import elemental.json.JsonObject;
import elemental.json.JsonValue;
/**
* A connector for {@link ImageRenderer}.
*
* @since 7.4
* @author Vaadin Ltd
*/
@Connect(com.vaadin.ui.renderers.ImageRenderer.class)
public class ImageRendererConnector extends ClickableRendererConnector {
@Override
public ImageRenderer getRenderer() {
return (ImageRenderer) super.getRenderer();
}
@Override
public String decode(JsonValue value) {
URLReference reference = (URLReference) JsonDecoder.decodeValue(
TypeDataStore.getType(URLReference.class), value, null,
getConnection());
return reference != null ? reference.getURL() : null;
}
@Override
protected HandlerRegistration addClickHandler(
RendererClickHandler handler) {
return getRenderer().addClickHandler(handler);
}
@Override
public ImageRendererState getState() {
return (ImageRendererState) super.getState();
}
}