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183 lines
5.1 KiB
183 lines
5.1 KiB
5 years ago
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/**
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* Nextcloud - Gallery
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*
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*
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* This file is licensed under the Affero General Public License version 3 or
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* later. See the COPYING file.
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*
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* @author Olivier Paroz <galleryapps@oparoz.com>
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*
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* @copyright Olivier Paroz 2017
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*/
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/* global Gallery, commonmark, DOMPurify */
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(function ($, t, Gallery) {
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"use strict";
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/**
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* Shows some information about the current album
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*
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* @constructor
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*/
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var InfoBox = function () {
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this.infoContentContainer = $('.album-info-container');
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this.infoContentSpinner = this.infoContentContainer.children('.album-info-loader');
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this.infoContentElement = this.infoContentContainer.children('.album-info-content');
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this.markdownReader = new commonmark.Parser();
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this.htmlWriter = new commonmark.HtmlRenderer();
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};
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InfoBox.prototype = {
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infoContentContainer: null,
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infoContentSpinner: null,
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infoContentElement: null,
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albumInfo: null,
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markdownReader: null,
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htmlWriter: null,
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/**
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* Shows an information box to the user
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*/
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showInfo: function () {
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if(!_.isUndefined(Gallery.Share)){
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Gallery.Share.hideDropDown();
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}
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if (this.infoContentContainer.is(':visible')) {
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this.infoContentContainer.slideUp();
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} else {
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this.albumInfo = Gallery.config.albumInfo;
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if (!this.albumInfo.infoLoaded) {
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this.infoContentSpinner.addClass('icon-loading');
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this.infoContentElement.empty();
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this.infoContentElement.height(100);
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this.infoContentContainer.slideDown();
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if (!$.isEmptyObject(this.albumInfo.descriptionLink)) {
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var path = '/' + this.albumInfo.filePath;
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var file = this.albumInfo.descriptionLink;
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var descriptionUrl = Gallery.utility.buildFilesUrl(path, file);
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var thisInfoBox = this;
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$.get(descriptionUrl).done(function (data) {
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thisInfoBox._addContent(data);
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}
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).fail(function () {
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thisInfoBox._addContent(t('gallery',
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'Could not load the description'));
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});
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} else {
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this._addContent(this.albumInfo.description);
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}
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Gallery.config.infoLoaded = true;
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} else {
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this.infoContentContainer.slideDown();
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}
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this.infoContentContainer.scrollTop(0);
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}
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},
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/**
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* Adds our album information to the infoBox
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*
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* @param {string} content
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* @private
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*/
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_addContent: function (content) {
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try {
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content = this._parseMarkdown(content);
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} catch (exception) {
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content = t('gallery',
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'Could not load the description: ' + exception.message);
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}
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this.infoContentElement.append(content);
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this.infoContentElement.find('a').attr("target", "_blank");
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this._showCopyright();
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this._adjustHeight();
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},
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/**
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* Parses markdown content and sanitizes the HTML
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*
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* @param {string} content
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* @private
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*/
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_parseMarkdown: function (content) {
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return DOMPurify.sanitize(this.htmlWriter.render(this.markdownReader.parse(content), {
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smart: true,
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safe: true
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}), {
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ALLOWED_TAGS: ['p', 'b', 'em', 'i', 'pre', 'sup', 'sub', 'strong', 'strike', 'br',
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'hr', 'h1', 'h2', 'h3', 'li', 'ul', 'ol', 'a', 'img', 'blockquote', 'code'
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]
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});
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},
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/**
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* Adjusts the height of the element to match the content
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* @private
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*/
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_adjustHeight: function () {
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this.infoContentSpinner.removeClass('icon-loading');
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var newHeight = this.infoContentContainer[0].scrollHeight;
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this.infoContentContainer.animate({
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height: newHeight + 40
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}, 500);
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this.infoContentContainer.scrollTop(0);
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},
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/**
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* Adds copyright information to the information box
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* @private
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*/
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_showCopyright: function () {
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if (!$.isEmptyObject(this.albumInfo.copyright) ||
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!$.isEmptyObject(this.albumInfo.copyrightLink)) {
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var copyright;
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var copyrightTitle = $('<h4/>');
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copyrightTitle.append(t('gallery', 'Copyright'));
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this.infoContentElement.append(copyrightTitle);
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if (!$.isEmptyObject(this.albumInfo.copyright)) {
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try {
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copyright = this._parseMarkdown(this.albumInfo.copyright);
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} catch (exception) {
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copyright =
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t('gallery',
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'Could not load the copyright notice: ' + exception.message);
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}
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} else {
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copyright = '<p>' + t('gallery', 'Copyright notice') + '</p>';
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}
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if (!$.isEmptyObject(this.albumInfo.copyrightLink)) {
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this._addCopyrightLink(copyright);
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} else {
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this.infoContentElement.append(copyright);
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this.infoContentElement.find('a').attr("target", "_blank");
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}
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}
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},
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/**
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* Adds a link to a copyright document
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*
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* @param {string} copyright
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* @private
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*/
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_addCopyrightLink: function (copyright) {
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var path = '/' + this.albumInfo.filePath;
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var file = this.albumInfo.copyrightLink;
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var copyrightUrl = Gallery.utility.buildFilesUrl(path, file);
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var copyrightElement = $(copyright);
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copyrightElement.find('a').removeAttr("href");
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copyright = copyrightElement.html();
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var copyrightLink = $('<a>', {
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html: copyright,
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title: t('gallery', 'Link to copyright document'),
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href: copyrightUrl,
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target: "_blank"
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});
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this.infoContentElement.append(copyrightLink);
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}
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};
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Gallery.InfoBox = InfoBox;
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})(jQuery, t, Gallery);
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