108 lines
3.4 KiB
JavaScript
108 lines
3.4 KiB
JavaScript
import he from 'he';
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/**
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* This script is used to retrieve bookmarks metadata asynchronously:
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* - title, description and keywords while creating a new bookmark
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* - thumbnails while visiting the bookmark list
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*
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* Note: it should only be included if the user is logged in
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* and the setting general.enable_async_metadata is enabled.
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*/
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/**
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* Removes given input loaders - used in edit link template.
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*
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* @param {object} loaders List of input DOM element that need to be cleared
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*/
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function clearLoaders(loaders) {
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if (loaders != null && loaders.length > 0) {
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[...loaders].forEach((loader) => {
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loader.classList.remove('loading-input');
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});
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}
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}
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/**
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* AJAX request to update the thumbnail of a bookmark with the provided ID.
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* If a thumbnail is retrieved, it updates the divElement with the image src, and displays it.
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*
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* @param {string} basePath Shaarli subfolder for XHR requests
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* @param {object} divElement Main <div> DOM element containing the thumbnail placeholder
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* @param {int} id Bookmark ID to update
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*/
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function updateThumb(basePath, divElement, id) {
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const xhr = new XMLHttpRequest();
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xhr.open('PATCH', `${basePath}/admin/shaare/${id}/update-thumbnail`);
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xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
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xhr.responseType = 'json';
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xhr.onload = () => {
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if (xhr.status !== 200) {
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alert(`An error occurred. Return code: ${xhr.status}`);
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} else {
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const { response } = xhr;
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if (response.thumbnail !== false) {
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const imgElement = divElement.querySelector('img');
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imgElement.src = response.thumbnail;
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imgElement.dataset.src = response.thumbnail;
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imgElement.style.opacity = '1';
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divElement.classList.remove('hidden');
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}
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}
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};
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xhr.send();
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}
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(() => {
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const basePath = document.querySelector('input[name="js_base_path"]').value;
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/*
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* METADATA FOR EDIT BOOKMARK PAGE
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*/
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const inputTitles = document.querySelectorAll('input[name="lf_title"]');
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if (inputTitles != null) {
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[...inputTitles].forEach((inputTitle) => {
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const form = inputTitle.closest('form[name="linkform"]');
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const loaders = form.querySelectorAll('.loading-input');
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if (inputTitle.value.length > 0) {
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clearLoaders(loaders);
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return;
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}
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const url = form.querySelector('input[name="lf_url"]').value;
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const xhr = new XMLHttpRequest();
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xhr.open('GET', `${basePath}/admin/metadata?url=${encodeURI(url)}`, true);
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xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
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xhr.onload = () => {
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const result = JSON.parse(xhr.response);
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Object.keys(result).forEach((key) => {
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if (result[key] !== null && result[key].length) {
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const element = form.querySelector(`input[name="lf_${key}"], textarea[name="lf_${key}"]`);
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if (element != null && element.value.length === 0) {
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element.value = he.decode(result[key]);
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}
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}
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});
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clearLoaders(loaders);
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};
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xhr.send();
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});
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}
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/*
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* METADATA FOR THUMBNAIL RETRIEVAL
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*/
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const thumbsToLoad = document.querySelectorAll('div[data-async-thumbnail]');
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if (thumbsToLoad != null) {
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[...thumbsToLoad].forEach((divElement) => {
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const { id } = divElement.closest('[data-id]').dataset;
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updateThumb(basePath, divElement, id);
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});
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}
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})();
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