geoportal-data-viewer-app/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/ui/gallery/ImagesGallery.java

package org.gcube.portlets.user.geoportaldataviewer.client.ui.gallery;

import java.util.List;

import org.gcube.application.geoportalcommon.shared.products.content.WorkspaceContentDV;
import org.gcube.application.geoportalcommon.shared.products.model.UploadedImageDV;

import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONString;
import com.google.gwt.user.client.Random;
import com.google.gwt.user.client.ui.HTMLPanel;


/**
 * The Class ImagesGallery.
 *
 * @author Francesco Mangiacrapa at ISTI-CNR (francesco.mangiacrapa@isti.cnr.it)
 * 
 * Jul 21, 2021
 */
public class ImagesGallery {

	private HTMLPanel galleryPanel;
	private List<UploadedImageDV> listImages;
	private String galleryDivId;

	/**
	 * Show gallery.
	 *
	 * @param json_array_images the json array images
	 */
	private native void showGallery(JavaScriptObject json_array_images, String galleryDivId) /*-{

		console.log("showing: " + json_array_images)
		var waitForJQuery = setInterval(
				function() {
					if (typeof $wnd.$ != 'undefined') {

						$wnd
								.$("#"+galleryDivId)
								.nanogallery2(
										{
											thumbnailHeight : '200 XS150 SM150', // RESPONSIVE THUMBNAIL HEIGHT: default=200px, XS resolution=150px, SM resolution=150px
											thumbnailWidth : '218 XS150 SM150', // RESPONSIVE THUMBNAIL WIDTH:  auto
											thumbnailAlignment : 'left',
											thumbnailBorderHorizontal : 0,
											thumbnailBorderVertical : 0,
											thumbnailGutterWidth : '10 XS10 SM10',
											thumbnailGutterHeight : '10 XS10 SM10',

											// THUMBNAIL TOOLS & LABEL
											thumbnailLabel : {
												display : true,
												position : 'onBottom',
												align : 'left'
											},
											thumbnailToolbarImage : {
												bottomLeft : 'display'
											},
											// replace the default DISPLAY tool icon
											icons : {
												thumbnailDisplay : '<i class="fa fa-long-arrow-right" aria-hidden="true"></i> display'
											},

											// DISPLAY ANIMATION
											galleryDisplayTransition : 'slideUp',
											galleryDisplayTransitionDuration : 1000,
											thumbnailDisplayTransition : 'scaleDown',
											thumbnailDisplayTransitionDuration : 300,
											thumbnailDisplayInterval : 50,

											// THUMBNAIL'S HOVER ANIMATION
											//thumbnailBuildInit2 : 'tools_font-size_1.5em|title_font-size_1.5em',
											thumbnailHoverEffect2 : 'imageScaleIn80|tools_opacity_0_1|tools_translateX_-30px_0px|title_opacity_1_0|title_translateX_0px_-30px',
											touchAnimation : true,
											touchAutoOpenDelay : 800,

											// GALLERY THEME
											galleryTheme : {
												thumbnail : {
													borderRadius : '2px !important',
													background : '#ffffff !important',
													titleShadow : 'none !important',
													titleColor : '#696969 !important',
													labelBackground : '#f3f3f3 !important'
												},
												thumbnailIcon : {
													color : '#000',
													shadow : 'none'
												},
											},
											viewerToolbar : {
												display : true,
												standard : 'minimizeButton, label',
												minimized : 'minimizeButton, label, fullscreenButton, downloadButton'
											},
											viewerTools : {
												topLeft : 'pageCounter',
												topRight : 'playPauseButton, zoomButton, fullscreenButton, downloadButton, closeButton'
											},

											// DEEP LINKING
											locationHash : false,
											items : json_array_images
										})

						clearInterval(waitForJQuery);
					}
				}, 200);

	}-*/;

	/**
	 * Instantiates a new images gallery.
	 *
	 * @param immagini the immagini
	 */
	public ImagesGallery(List<UploadedImageDV> immagini) {
		this.galleryDivId = "nanogallery"+Random.nextInt()+Random.nextInt();
		this.galleryPanel = new HTMLPanel("<div id='"+galleryDivId+"'></div>");
		this.listImages = immagini;
	}

	/**
	 * Gets the gallery panel.
	 *
	 * @return the gallery panel
	 */
	public HTMLPanel getGalleryPanel() {
		return galleryPanel;
	}

	/**
	 * Fill gallery.
	 */
	public void fillGallery() {

		JSONArray jsonArray = new JSONArray();
		int index = 0;
		for (UploadedImageDV image : listImages) {
			for (WorkspaceContentDV imageContent : image.getListWsContent()) {
				JSONObject json = new JSONObject();
				json.put("src", new JSONString(imageContent.getLink()));
				json.put("srct", new JSONString(imageContent.getLink()));
				List<String> listAuthors = image.getResponsabili();
				String txtAuthors = listAuthors.size()>1 ? "Authors: ": "Author: ";
				for (String author : listAuthors) {
					txtAuthors+= " "+author +",";
				}
				txtAuthors = txtAuthors.substring(0,txtAuthors.length()-2);
				String description = txtAuthors + ". ID Licenza: "+image.getLicenseID();
				json.put("title", new JSONString(image.getDidascalia()));
				json.put("description", new JSONString(description));
				json.put("downloadURL", new JSONString(imageContent.getLink()));
				jsonArray.set(index, json);
				index++;
			}

		}
		showGallery(jsonArray.getJavaScriptObject(), galleryDivId);
	}
}