Boatwrect

View in gallery, Full resolution view, click image above.A song for Melissa

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package com.hddigitalworks;

import org.apache.wicket.AttributeModifier;

public class FlickrPage extends WebPage {

    private static final long serialVersionUID = 1L;
    private static final Logger log = LoggerFactory.getLogger(FlickrPage.class);

    private String tags;   // flickr search tags, received from form field
    WebMarkupContainer photosDiv; // something for Ajax target to add to for update

    public FlickrPage(final PageParameters parameters) {
        add(new StyleSheetReference("pageCss", getClass(), "flickr.css"));
        Form form = new Form("form", new CompoundPropertyModel(this));
        add(form);
        FeedbackPanel fp = new FeedbackPanel("feedback");
        fp.setOutputMarkupPlaceholderTag(true);
        fp.setMarkupId("feedback");
        form.add(fp);
        form.add(new TextField("tags").setRequired(true));
        AjaxFallbackButton submitButton = new AjaxFallbackButton("submitButton", form) {
            private static final long serialVersionUID = 1L;

        @Override protected void onSubmit(AjaxRequestTarget target, Form f) {
            renderPhotos(tags);
         if (target != null) {
           target.addComponent(f.get("feedback"));  // clear error feedback if any
           target.addComponent(photosDiv);    // update our photos display
           target.appendJavascript("new Effect.BlindDown('photos', {duration:3});"
                 + "Element.hide('spinner');");
       }
         }

        @Override protected void onError(AjaxRequestTarget target, Form f) {
             target.addComponent(f.get("feedback"));  // show updated error feedback
             target.appendJavascript("Element.hide('spinner');");
//              target.addComponent(photosDiv);     // keep to show existing photo display on error
        }
    };
    // add effects for when submit button onclick
    String onClickJavascript = "Element.show('spinner'); new Effect.BlindUp('photos');";
    submitButton.add(new AttributeModifier("onclick", true, new Model(onClickJavascript)) {
        private static final long serialVersionUID = 1L;
        @Override protected String newValue(String oldValue, String newValue) {
            return newValue + oldValue;
        }
    });
    form.add(submitButton);
    photosDiv = new WebMarkupContainer("photosDiv");
    photosDiv.setOutputMarkupId(true);
    photosDiv.setMarkupId("photos"); // use our own id instead of let Wicket generate
    form.add(photosDiv);
    // Initially there is no photo to display
    // so add a temporary place holder component to make Wicket happy
    photosDiv.add(new WebMarkupContainer("photoEntry").setVisible(false));

}


    private void renderPhotos(final String tags) {
        IModel list = new LoadableDetachableModel() {
            private static final long serialVersionUID = 1L;
            @Override protected Object load() {
                return searchFlickr(tags, 24, 1);
            }
        };
        ListView photoList = new ListView("photoEntry", list) {
            private static final long serialVersionUID = 1L;
            @Override protected void populateItem(ListItem item) {
                Photo photo = (Photo) item.getModelObject();
                item.add(new Thumbnail("t", photo));
            }
        };
        photosDiv.replace(photoList);
    }


    private PhotoList searchFlickr(String tags, int perPage, int page) {
        PhotoList result = null;
        try {
            Flickr f = new Flickr("xx-get-your-own-key-xx", new REST());
            PhotosInterface photos = f.getPhotosInterface();
            SearchParameters params = new SearchParameters();
            params.setTags(new String[] { tags });
            result = photos.search(params, perPage, page); // page start from 1?
        } catch(Exception e) {
            log.error("Flicker communication error [" + e.getMessage() + "]", e);
            throw new RuntimeException(e);
        }

        return result;

    }
}