diff options
Diffstat (limited to 'apps/federatedfilesharing/js/3rdparty/gs-share/gs-share.js')
| -rw-r--r-- | apps/federatedfilesharing/js/3rdparty/gs-share/gs-share.js | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/apps/federatedfilesharing/js/3rdparty/gs-share/gs-share.js b/apps/federatedfilesharing/js/3rdparty/gs-share/gs-share.js new file mode 100644 index 00000000000..fd4442708a4 --- /dev/null +++ b/apps/federatedfilesharing/js/3rdparty/gs-share/gs-share.js @@ -0,0 +1,206 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +// @license magnet:?xt=urn:btih:3877d6d54b3accd4bc32f8a48bf32ebc0901502a&dn=mpl-2.0.txt MPL 2.0 +document.addEventListener('DOMContentLoaded', function () { + 'use strict'; + /** + * 'Share' widget for GNU social + * http://code.chromic.org/project/view/2/ + * + * We make a few assumptions about the target instance: + * 1) The API root is in the default location + * 2) Fancy URLs are enabled + * 3) CORS is allowed + * 4) The Bookmark plugin is enabled + * + * If 1), 3) or 4) are wrong, we fall back to a regular + * notice (instead of a bookmark notice) + * + * If 2) is wrong the user will be directed to a 404 :( + */ + + // TODO: input sanitation [1], [2] + // TODO: server-side fallback if JS is disabled + + var createForm, + bindClicks, + frm, + shareAsNotice, + shareAsBookmark, + extractURLParams, + shareURL, + shareTitle, + closest, + i18n = window.i18n; + + /** + * Internationalization + */ + if (i18n === undefined) { + i18n = { + invalidId: 'The account id provided is invalid', + yourAcctId: 'Your account ID:', + idPlaceholder: 'user@example.org', + shareAsBookmark: 'Share as a bookmark' + }; + } + + shareAsNotice = function (title, url, domain) { + window.open('http://' + domain + '/notice/new?status_textarea=' + title + ' ' + url); // [1] + }; + + shareAsBookmark = function (title, url, domain) { + window.open('http://' + domain + '/main/bookmark/new?url=' + url + '&title=' + title); // [2] + }; + + /** + * Extract parameters from query string + * + * ex: + * ?foo=bar&baz=test + * will return: + * {foo: 'bar', baz: 'test'} + */ + extractURLParams = function (queryStr) { + var parts = queryStr.substr(1).split('&'), + i, len, keyVal, params = {}; + + for (i = 0, len = parts.length; i < len; i += 1) { + keyVal = parts[i].split('='); + params[keyVal[0]] = keyVal[1]; + } + + return params; + }; + + // Create the form that we'll re-use throughout the page + createForm = function () { + var err = document.createElement('div'); + err.setAttribute('class', 'gs-share-err'); + err.setAttribute('tabindex', '-1'); + err.setAttribute('aria-hidden', 'true'); + err.textContent = i18n.invalidId; + + frm = document.createElement('form'); + + frm.setAttribute('class', 'gs-share-form'); + frm.setAttribute('tabindex', '-1'); + frm.setAttribute('aria-hidden', 'true'); + + frm.innerHTML = '<label for="gs-account">' + i18n.yourAcctId + '</label>' + + '<input type="text" id="gs-account" placeholder="' + i18n.idPlaceholder + '" />' + + '<input type="checkbox" id="gs-bookmark" /> <label for="gs-bookmark">' + i18n.shareAsBookmark + '</label>' + + '<input type="submit" value="Share"/>'; + frm.insertBefore(err, frm.firstChild); + + // Submit handler + frm.addEventListener('submit', function (e) { + e.preventDefault(); + + var accountParts = document.getElementById('gs-account').value.split('@'), + username, domain, xhr, bookmarkURL; + + if (accountParts.length === 2) { + err.setAttribute('aria-hidden', 'true'); + + username = accountParts[0]; + domain = accountParts[1]; + bookmarkURL = 'http://' + domain + '/api/bookmarks/' + username + '.json'; + + // Try bookmark + if (document.getElementById('gs-bookmark').checked) { + xhr = new XMLHttpRequest(); + + xhr.onreadystatechange = function () { + if (xhr.readyState === 4) { + if (xhr.status === 200) { // Success + shareAsBookmark(shareTitle, shareURL, domain); + } else { // Failure, fallback to regular notice + shareAsNotice(shareTitle, shareURL, domain); + } + } + }; + + xhr.open('GET', bookmarkURL, true); + xhr.send(); + } else { // Regular notice + shareAsNotice(shareTitle, shareURL, domain); + } + } else { // Invalid account id + err.setAttribute('aria-hidden', 'false'); + err.focus(); + } + }); + + // Keydown handler + frm.addEventListener('keydown', function (e) { + if (e.keyCode === 27) { // Escape key closes the dialog + frm.parentElement.getElementsByClassName('js-gs-share')[0].focus(); + frm.setAttribute('aria-hidden', 'true'); + } + }); + + document.body.appendChild(frm); + }; + + /** + * Something similar to jQuery.closest + * + * Given `elm`, return the closest parent with class `cls` + * or false if there is no matching ancestor. + */ + closest = function (elm, cls) { + while (elm !== document) { + if (elm.classList.contains(cls)) { + return elm; + } + + elm = elm.parentNode; + } + + return false; + }; + + bindClicks = function () { + document.addEventListener('click', function (e) { + var target = e.target, + urlParams, + lnk = closest(target, 'js-gs-share'); + + // Don't do anything on right/middle click or if ctrl or shift was pressed while left-clicking + if (!e.button && !e.ctrlKey && !e.shiftKey && lnk) { + e.preventDefault(); + + // Check for submission information in href first + if (lnk.search !== undefined) { + urlParams = extractURLParams(lnk.search); + shareURL = urlParams.url; + shareTitle = urlParams.title; + } else { // If it's not there, try data-* attributes. If not, use current document url and title + shareURL = lnk.getAttribute('data-url') || window.location.href; + shareTitle = lnk.getAttribute('data-title') || document.title; + } + + // Move form after the clicked link + lnk.parentNode.appendChild(frm); + + // Show form + frm.setAttribute('aria-hidden', 'false'); + + // Focus on form + frm.focus(); + } else if (!frm.contains(target)) { + frm.setAttribute('aria-hidden', 'true'); + } + }); + }; + + // Flag that js is enabled + document.body.classList.add('js-gs-share-enabled'); + + createForm(); + bindClicks(); +}); +// @license-end |