com.google.code.jqwicket.ui.cloudzoom.CloudZoomImagePanel.java Source code

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Here is the source code for com.google.code.jqwicket.ui.cloudzoom.CloudZoomImagePanel.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.google.code.jqwicket.ui.cloudzoom;

import com.google.code.jqwicket.Utils;
import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.image.Image;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.Panel;

import java.util.Arrays;
import java.util.Collections;

/**
 * @author mkalina
 * 
 */
public class CloudZoomImagePanel extends Panel {

    private static final long serialVersionUID = 1L;

    public CloudZoomImagePanel(String id, CloudZoomImage image, CloudZoomGalleryImage... galleryImages) {
        this(id, new CloudZoomOptions(image, galleryImages));
    }

    @SuppressWarnings("unchecked")
    public CloudZoomImagePanel(String id, final CloudZoomOptions options) {
        super(id);

        add(new CloudZoomBehavior(options));

        // add default zoom image
        final CloudZoomImage img = options.getImage();
        final WebMarkupContainer bigImage = this.newCloudZoomLink("cloudZoom-bigImage", img, getDefaultCssClass(),
                Utils.substringBetween(String.valueOf(options), "{", "}"));
        bigImage.add(this.newCloudZoomImage("cloudZoom-smallImage", img.getSmallImageUrl(), img.getImageAlt(),
                img.getImageTitle()));
        add(bigImage);

        // add gallery images
        add(new ListView<CloudZoomGalleryImage>("gallery-repeater",
                options.hasGalleryImages() ? Arrays.asList(options.getGalleryImages()) : Collections.EMPTY_LIST) {

            private static final long serialVersionUID = 1L;

            @Override
            protected void populateItem(ListItem<CloudZoomGalleryImage> item) {
                final CloudZoomGalleryImage img = item.getModelObject();

                WebMarkupContainer link = newCloudZoomLink("thumbnail-bigImage", img, getGalleryCssClass(),
                        new StringBuffer().append("useZoom: ").append(Utils.quote(bigImage.getMarkupId()))
                                .append(", smallImage:").append(Utils.quote(img.getSmallImageUrl())));

                link.add(newCloudZoomImage("thumbnail-smallImage",
                        img.hasThumbnailUrl() ? img.getThumbnailUrl() : img.getSmallImageUrl(), null, null));

                item.add(link);

            }

            @Override
            public boolean isVisible() {
                return options.hasGalleryImages();
            }
        });
    }

    protected WebMarkupContainer newCloudZoomLink(final String id, final CloudZoomImage img,
            final CharSequence cssClass, final CharSequence rel) {

        final WebMarkupContainer link = new WebMarkupContainer(id) {
            private static final long serialVersionUID = 1L;

            @Override
            protected void onComponentTag(ComponentTag tag) {
                super.onComponentTag(tag);
                tag.put("class", cssClass);
                tag.put("href", img.getBigImageUrl());
                tag.put("rel", rel);
            }
        };
        link.setOutputMarkupId(true);
        return link;
    }

    protected Image newCloudZoomImage(final String id, final CharSequence url, final CharSequence alt,
            final CharSequence title) {
        return new Image(id) {
            private static final long serialVersionUID = 1L;

            @Override
            protected void onComponentTag(ComponentTag tag) {
                tag.put("src", url);
                if (alt != null)
                    tag.put("alt", alt);
                if (title != null)
                    tag.put("title", title);
            }
        };
    }

    protected CharSequence getDefaultCssClass() {
        return "cloud-zoom";
    }

    protected CharSequence getGalleryCssClass() {
        return "cloud-zoom-gallery";
    }
}