MyShaarli/assets/default/js/base.js

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JavaScript
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import Awesomplete from 'awesomplete';
/**
* Find a parent element according to its tag and its attributes
*
* @param element Element where to start the search
* @param tagName Expected parent tag name
* @param attributes Associative array of expected attributes (name=>value).
*
* @returns Found element or null.
*/
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function findParent(element, tagName, attributes) {
const parentMatch = key => attributes[key] !== '' && element.getAttribute(key).indexOf(attributes[key]) !== -1;
while (element) {
if (element.tagName.toLowerCase() === tagName) {
if (Object.keys(attributes).find(parentMatch)) {
return element;
}
}
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element = element.parentElement;
}
return null;
}
/**
* Ajax request to refresh the CSRF token.
*/
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function refreshToken() {
const xhr = new XMLHttpRequest();
xhr.open('GET', '?do=token');
xhr.onload = () => {
const token = document.getElementById('token');
token.setAttribute('value', xhr.responseText);
};
xhr.send();
}
function createAwesompleteInstance(element, tags = []) {
const awesome = new Awesomplete(Awesomplete.$(element));
// Tags are separated by a space
awesome.filter = (text, input) => Awesomplete.FILTER_CONTAINS(text, input.match(/[^ ]*$/)[0]);
// Insert new selected tag in the input
awesome.replace = (text) => {
const before = awesome.input.value.match(/^.+ \s*|/)[0];
awesome.input.value = `${before}${text} `;
};
// Highlight found items
awesome.item = (text, input) => Awesomplete.ITEM(text, input.match(/[^ ]*$/)[0]);
// Don't display already selected items
const reg = /(\w+) /g;
let match;
awesome.data = (item, input) => {
while ((match = reg.exec(input))) {
if (item === match[1]) {
return '';
}
}
return item;
};
awesome.minChars = 1;
if (tags.length) {
awesome.list = tags;
}
return awesome;
}
/**
* Update awesomplete list of tag for all elements matching the given selector
*
* @param selector CSS selector
* @param tags Array of tags
* @param instances List of existing awesomplete instances
*/
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function updateAwesompleteList(selector, tags, instances) {
if (instances.length === 0) {
// First load: create Awesomplete instances
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const elements = document.querySelectorAll(selector);
[...elements].forEach((element) => {
instances.push(createAwesompleteInstance(element, tags));
});
} else {
// Update awesomplete tag list
instances.map((item) => {
item.list = tags;
return item;
});
}
return instances;
}
/**
* html_entities in JS
*
* @see http://stackoverflow.com/questions/18749591/encode-html-entities-in-javascript
*/
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function htmlEntities(str) {
return str.replace(/[\u00A0-\u9999<>&]/gim, i => `&#${i.charCodeAt(0)};`);
}
function activateFirefoxSocial(node) {
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const loc = location.href;
const baseURL = loc.substring(0, loc.lastIndexOf('/') + 1);
const data = {
name: document.title,
description: document.getElementById('translation-delete-link').innerHTML,
author: 'Shaarli',
version: '1.0.0',
iconURL: `${baseURL}/images/favicon.ico`,
icon32URL: `${baseURL}/images/favicon.ico`,
icon64URL: `${baseURL}/images/favicon.ico`,
shareURL: `${baseURL}?post=%{url}&title=%{title}&description=%{text}&source=firefoxsocialapi`,
homepageURL: baseURL,
};
node.setAttribute('data-service', JSON.stringify(data));
const activate = new CustomEvent('ActivateSocialFeature');
node.dispatchEvent(activate);
}
/**
* Add the class 'hidden' to city options not attached to the current selected continent.
*
* @param cities List of <option> elements
* @param currentContinent Current selected continent
* @param reset Set to true to reset the selected value
*/
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function hideTimezoneCities(cities, currentContinent, reset = null) {
let first = true;
if (reset == null) {
reset = false;
}
[...cities].forEach((option) => {
if (option.getAttribute('data-continent') !== currentContinent) {
option.className = 'hidden';
} else {
option.className = '';
if (reset === true && first === true) {
option.setAttribute('selected', 'selected');
first = false;
}
}
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});
}
/**
* Retrieve an element up in the tree from its class name.
*/
function getParentByClass(el, className) {
const p = el.parentNode;
if (p == null || p.classList.contains(className)) {
return p;
}
return getParentByClass(p, className);
}
function toggleHorizontal() {
[...document.getElementById('shaarli-menu').querySelectorAll('.menu-transform')].forEach((el) => {
el.classList.toggle('pure-menu-horizontal');
});
}
function toggleMenu(menu) {
// set timeout so that the panel has a chance to roll up
// before the menu switches states
if (menu.classList.contains('open')) {
setTimeout(toggleHorizontal, 500);
} else {
toggleHorizontal();
}
menu.classList.toggle('open');
document.getElementById('menu-toggle').classList.toggle('x');
}
function closeMenu(menu) {
if (menu.classList.contains('open')) {
toggleMenu(menu);
}
}
function toggleFold(button, description, thumb) {
// Switch fold/expand - up = fold
if (button.classList.contains('fa-chevron-up')) {
button.title = document.getElementById('translation-expand').innerHTML;
if (description != null) {
description.style.display = 'none';
}
if (thumb != null) {
thumb.style.display = 'none';
}
} else {
button.title = document.getElementById('translation-fold').innerHTML;
if (description != null) {
description.style.display = 'block';
}
if (thumb != null) {
thumb.style.display = 'block';
}
}
button.classList.toggle('fa-chevron-down');
button.classList.toggle('fa-chevron-up');
}
function removeClass(element, classname) {
element.className = element.className.replace(new RegExp(`(?:^|\\s)${classname}(?:\\s|$)`), ' ');
}
function init(description) {
function resize() {
/* Fix jumpy resizing: https://stackoverflow.com/a/18262927/1484919 */
const scrollTop = window.pageYOffset ||
(document.documentElement || document.body.parentNode || document.body).scrollTop;
description.style.height = 'auto';
description.style.height = `${description.scrollHeight + 10}px`;
window.scrollTo(0, scrollTop);
}
/* 0-timeout to get the already changed text */
function delayedResize() {
window.setTimeout(resize, 0);
}
const observe = (element, event, handler) => {
element.addEventListener(event, handler, false);
};
observe(description, 'change', resize);
observe(description, 'cut', delayedResize);
observe(description, 'paste', delayedResize);
observe(description, 'drop', delayedResize);
observe(description, 'keydown', delayedResize);
resize();
}
(() => {
/**
* Handle responsive menu.
* Source: http://purecss.io/layouts/tucked-menu-vertical/
*/
const menu = document.getElementById('shaarli-menu');
const WINDOW_CHANGE_EVENT = ('onorientationchange' in window) ? 'orientationchange' : 'resize';
const menuToggle = document.getElementById('menu-toggle');
if (menuToggle != null) {
menuToggle.addEventListener('click', () => toggleMenu(menu));
}
window.addEventListener(WINDOW_CHANGE_EVENT, () => closeMenu(menu));
/**
* Fold/Expand shaares description and thumbnail.
*/
const foldAllButtons = document.getElementsByClassName('fold-all');
const foldButtons = document.getElementsByClassName('fold-button');
[...foldButtons].forEach((foldButton) => {
// Retrieve description
let description = null;
let thumbnail = null;
const linklistItem = getParentByClass(foldButton, 'linklist-item');
if (linklistItem != null) {
description = linklistItem.querySelector('.linklist-item-description');
thumbnail = linklistItem.querySelector('.linklist-item-thumbnail');
if (description != null || thumbnail != null) {
foldButton.style.display = 'inline';
}
}
foldButton.addEventListener('click', (event) => {
event.preventDefault();
toggleFold(event.target, description, thumbnail);
});
});
if (foldAllButtons != null) {
[].forEach.call(foldAllButtons, (foldAllButton) => {
foldAllButton.addEventListener('click', (event) => {
event.preventDefault();
const state = foldAllButton.firstElementChild.getAttribute('class').indexOf('down') !== -1 ? 'down' : 'up';
[].forEach.call(foldButtons, (foldButton) => {
if ((foldButton.firstElementChild.classList.contains('fa-chevron-up') && state === 'down')
|| (foldButton.firstElementChild.classList.contains('fa-chevron-down') && state === 'up')
) {
return;
}
// Retrieve description
let description = null;
let thumbnail = null;
const linklistItem = getParentByClass(foldButton, 'linklist-item');
if (linklistItem != null) {
description = linklistItem.querySelector('.linklist-item-description');
thumbnail = linklistItem.querySelector('.linklist-item-thumbnail');
if (description != null || thumbnail != null) {
foldButton.style.display = 'inline';
}
}
toggleFold(foldButton.firstElementChild, description, thumbnail);
});
foldAllButton.firstElementChild.classList.toggle('fa-chevron-down');
foldAllButton.firstElementChild.classList.toggle('fa-chevron-up');
foldAllButton.title = state === 'down'
? document.getElementById('translation-fold-all').innerHTML
: document.getElementById('translation-expand-all').innerHTML;
});
});
}
/**
* Confirmation message before deletion.
*/
const deleteLinks = document.querySelectorAll('.confirm-delete');
[...deleteLinks].forEach((deleteLink) => {
deleteLink.addEventListener('click', (event) => {
if (!confirm(document.getElementById('translation-delete-link').innerHTML)) {
event.preventDefault();
}
});
});
/**
* Close alerts
*/
const closeLinks = document.querySelectorAll('.pure-alert-close');
[...closeLinks].forEach((closeLink) => {
closeLink.addEventListener('click', (event) => {
const alert = getParentByClass(event.target, 'pure-alert-closable');
alert.style.display = 'none';
});
});
/**
* New version dismiss.
* Hide the message for one week using localStorage.
*/
const newVersionDismiss = document.getElementById('new-version-dismiss');
const newVersionMessage = document.querySelector('.new-version-message');
if (newVersionMessage != null
&& localStorage.getItem('newVersionDismiss') != null
&& parseInt(localStorage.getItem('newVersionDismiss'), 10) + (7 * 24 * 60 * 60 * 1000) > (new Date()).getTime()
) {
newVersionMessage.style.display = 'none';
}
if (newVersionDismiss != null) {
newVersionDismiss.addEventListener('click', () => {
localStorage.setItem('newVersionDismiss', (new Date()).getTime().toString());
});
}
const hiddenReturnurl = document.getElementsByName('returnurl');
if (hiddenReturnurl != null) {
hiddenReturnurl.value = window.location.href;
}
/**
* Autofocus text fields
*/
const autofocusElements = document.querySelectorAll('.autofocus');
let breakLoop = false;
[].forEach.call(autofocusElements, (autofocusElement) => {
if (autofocusElement.value === '' && !breakLoop) {
autofocusElement.focus();
breakLoop = true;
}
});
/**
* Handle sub menus/forms
*/
const openers = document.getElementsByClassName('subheader-opener');
if (openers != null) {
[...openers].forEach((opener) => {
opener.addEventListener('click', (event) => {
event.preventDefault();
const id = opener.getAttribute('data-open-id');
const sub = document.getElementById(id);
if (sub != null) {
[...document.getElementsByClassName('subheader-form')].forEach((element) => {
if (element !== sub) {
removeClass(element, 'open');
}
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});
sub.classList.toggle('open');
}
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});
});
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}
/**
* Remove CSS target padding (for fixed bar)
*/
if (location.hash !== '') {
const anchor = document.getElementById(location.hash.substr(1));
if (anchor != null) {
const padsize = anchor.clientHeight;
window.scroll(0, window.scrollY - padsize);
anchor.style.paddingTop = '0';
}
}
/**
* Text area resizer
*/
const description = document.getElementById('lf_description');
if (description != null) {
init(description);
// Submit editlink form with CTRL + Enter in the text area.
description.addEventListener('keydown', (event) => {
if (event.ctrlKey && event.keyCode === 13) {
document.getElementById('button-save-edit').click();
}
});
}
/**
* Bookmarklet alert
*/
const bookmarkletLinks = document.querySelectorAll('.bookmarklet-link');
const bkmMessage = document.getElementById('bookmarklet-alert');
[].forEach.call(bookmarkletLinks, (link) => {
link.addEventListener('click', (event) => {
event.preventDefault();
alert(bkmMessage.value);
});
});
/**
* Firefox Social
*/
const ffButton = document.getElementById('ff-social-button');
if (ffButton != null) {
ffButton.addEventListener('click', (event) => {
activateFirefoxSocial(event.target);
});
}
const continent = document.getElementById('continent');
const city = document.getElementById('city');
if (continent != null && city != null) {
continent.addEventListener('change', () => {
hideTimezoneCities(city, continent.options[continent.selectedIndex].value, true);
});
hideTimezoneCities(city, continent.options[continent.selectedIndex].value, false);
}
/**
* Bulk actions
*/
const linkCheckboxes = document.querySelectorAll('.delete-checkbox');
const bar = document.getElementById('actions');
[...linkCheckboxes].forEach((checkbox) => {
checkbox.style.display = 'inline-block';
checkbox.addEventListener('click', () => {
const linkCheckedCheckboxes = document.querySelectorAll('.delete-checkbox:checked');
const count = [...linkCheckedCheckboxes].length;
if (count === 0 && bar.classList.contains('open')) {
bar.classList.toggle('open');
} else if (count > 0 && !bar.classList.contains('open')) {
bar.classList.toggle('open');
}
});
});
const deleteButton = document.getElementById('actions-delete');
const token = document.getElementById('token');
if (deleteButton != null && token != null) {
deleteButton.addEventListener('click', (event) => {
event.preventDefault();
const links = [];
const linkCheckedCheckboxes = document.querySelectorAll('.delete-checkbox:checked');
[...linkCheckedCheckboxes].forEach((checkbox) => {
links.push({
id: checkbox.value,
title: document.querySelector(`.linklist-item[data-id="${checkbox.value}"] .linklist-link`).innerHTML,
});
});
let message = `Are you sure you want to delete ${links.length} links?\n`;
message += 'This action is IRREVERSIBLE!\n\nTitles:\n';
const ids = [];
links.forEach((item) => {
message += ` - ${item.title}\n`;
ids.push(item.id);
});
if (window.confirm(message)) {
window.location = `?delete_link&lf_linkdate=${ids.join('+')}&token=${token.value}`;
}
});
}
/**
* Tag list operations
*
* TODO: support error code in the backend for AJAX requests
*/
const tagList = document.querySelector('input[name="taglist"]');
let existingTags = tagList ? tagList.value.split(' ') : [];
let awesomepletes = [];
// Display/Hide rename form
const renameTagButtons = document.querySelectorAll('.rename-tag');
[...renameTagButtons].forEach((rename) => {
rename.addEventListener('click', (event) => {
event.preventDefault();
const block = findParent(event.target, 'div', { class: 'tag-list-item' });
const form = block.querySelector('.rename-tag-form');
if (form.style.display === 'none' || form.style.display === '') {
form.style.display = 'block';
} else {
form.style.display = 'none';
}
block.querySelector('input').focus();
});
});
// Rename a tag with an AJAX request
const renameTagSubmits = document.querySelectorAll('.validate-rename-tag');
[...renameTagSubmits].forEach((rename) => {
rename.addEventListener('click', (event) => {
event.preventDefault();
const block = findParent(event.target, 'div', { class: 'tag-list-item' });
const input = block.querySelector('.rename-tag-input');
const totag = input.value.replace('/"/g', '\\"');
if (totag.trim() === '') {
return;
}
const refreshedToken = document.getElementById('token').value;
const fromtag = block.getAttribute('data-tag');
const xhr = new XMLHttpRequest();
xhr.open('POST', '?do=changetag');
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhr.onload = () => {
if (xhr.status !== 200) {
alert(`An error occurred. Return code: ${xhr.status}`);
location.reload();
} else {
block.setAttribute('data-tag', totag);
input.setAttribute('name', totag);
input.setAttribute('value', totag);
findParent(input, 'div', { class: 'rename-tag-form' }).style.display = 'none';
block.querySelector('a.tag-link').innerHTML = htmlEntities(totag);
block.querySelector('a.tag-link').setAttribute('href', `?searchtags=${encodeURIComponent(totag)}`);
block.querySelector('a.rename-tag').setAttribute('href', `?do=changetag&fromtag=${encodeURIComponent(totag)}`);
// Refresh awesomplete values
existingTags = existingTags.map(tag => (tag === fromtag ? totag : tag));
awesomepletes = updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
}
};
xhr.send(`renametag=1&fromtag=${encodeURIComponent(fromtag)}&totag=${encodeURIComponent(totag)}&token=${refreshedToken}`);
refreshToken();
});
});
// Validate input with enter key
const renameTagInputs = document.querySelectorAll('.rename-tag-input');
[...renameTagInputs].forEach((rename) => {
rename.addEventListener('keypress', (event) => {
if (event.keyCode === 13) { // enter
findParent(event.target, 'div', { class: 'tag-list-item' }).querySelector('.validate-rename-tag').click();
}
});
});
// Delete a tag with an AJAX query (alert popup confirmation)
const deleteTagButtons = document.querySelectorAll('.delete-tag');
[...deleteTagButtons].forEach((rename) => {
rename.style.display = 'inline';
rename.addEventListener('click', (event) => {
event.preventDefault();
const block = findParent(event.target, 'div', { class: 'tag-list-item' });
const tag = block.getAttribute('data-tag');
const refreshedToken = document.getElementById('token');
if (confirm(`Are you sure you want to delete the tag "${tag}"?`)) {
const xhr = new XMLHttpRequest();
xhr.open('POST', '?do=changetag');
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhr.onload = () => {
block.remove();
};
xhr.send(encodeURI(`deletetag=1&fromtag=${tag}&token=${refreshedToken}`));
refreshToken();
existingTags = existingTags.filter(tagItem => tagItem !== tag);
awesomepletes = updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
}
});
});
const autocompleteFields = document.querySelectorAll('input[data-multiple]');
[...autocompleteFields].forEach((autocompleteField) => {
awesomepletes.push(createAwesompleteInstance(autocompleteField));
});
})();