cc.alcina.framework.gwt.client.cell.FunctionalCell.java Source code

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Here is the source code for cc.alcina.framework.gwt.client.cell.FunctionalCell.java

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/*
 * Copyright 2010 Google 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 cc.alcina.framework.gwt.client.cell;

import static com.google.gwt.dom.client.BrowserEvents.*;

import com.google.gwt.cell.client.AbstractCell;
import com.google.gwt.cell.client.ValueUpdater;
import com.google.gwt.dom.builder.shared.HtmlAnchorBuilder;
import com.google.gwt.dom.builder.shared.HtmlBuilderFactory;
import com.google.gwt.dom.builder.shared.HtmlElementBuilderBase;
import com.google.gwt.dom.builder.shared.HtmlSpanBuilder;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.EventTarget;
import com.google.gwt.dom.client.NativeEvent;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;

import cc.alcina.framework.gwt.client.place.RegistryHistoryMapper;

public class FunctionalCell extends AbstractCell<FunctionalTuple> {
    public FunctionalCell() {
        super(CLICK, KEYDOWN);
    }

    @Override
    public void onBrowserEvent(Context context, Element parent, FunctionalTuple value, NativeEvent event,
            ValueUpdater<FunctionalTuple> valueUpdater) {
        super.onBrowserEvent(context, parent, value, event, valueUpdater);
        if (CLICK.equals(event.getType())) {
            EventTarget eventTarget = event.getEventTarget();
            if (!Element.is(eventTarget)) {
                return;
            }
            if (parent.getFirstChildElement().isOrHasChild(Element.as(eventTarget))) {
                event.stopPropagation();
            }
        }
    }

    @Override
    public void render(Context context, FunctionalTuple value, SafeHtmlBuilder sb) {
        HtmlBuilderFactory factory = HtmlBuilderFactory.get();
        HtmlElementBuilderBase builderBase = null;
        if (value.href != null) {
            HtmlAnchorBuilder builder = factory.createAnchorBuilder();
            builderBase = builder;
            builder.href(value.href);
        } else if (value.place != null) {
            HtmlAnchorBuilder builder = factory.createAnchorBuilder();
            builderBase = builder;
            builder.href("#" + RegistryHistoryMapper.get().getToken(value.place));
        } else {
            HtmlSpanBuilder builder = factory.createSpanBuilder();
            builderBase = builder;
        }
        if (value.title != null) {
            builderBase.title(value.title);
        }
        builderBase.text(value.text);
        sb.append(builderBase.asSafeHtml());
    }
}