MyShaarli/tpl/default/js/shaarli.js
ArthurHoaro 9c46b347b8 Fix jumpy textarea with long content in post edit
We manually reset the scroll position, to avoid height = 'auto' jump to the top

Fixes #971
2017-10-01 11:49:17 +02:00

661 lines
24 KiB
JavaScript

/** @licstart The following is the entire license notice for the
* JavaScript code in this page.
*
* Copyright: (c) 2011-2015 Sébastien SAUVAGE <sebsauvage@sebsauvage.net>
* (c) 2011-2017 The Shaarli Community, see AUTHORS
*
* This software is provided 'as-is', without any express or implied warranty.
* In no event will the authors be held liable for any damages arising from
* the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would
* be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must
* not be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source distribution.
*
* @licend The above is the entire license notice
* for the JavaScript code in this page.
*/
window.onload = function () {
/**
* Retrieve an element up in the tree from its class name.
*/
function getParentByClass(el, className) {
var p = el.parentNode;
if (p == null || p.classList.contains(className)) {
return p;
}
return getParentByClass(p, className);
}
/**
* Handle responsive menu.
* Source: http://purecss.io/layouts/tucked-menu-vertical/
*/
(function (window, document) {
var menu = document.getElementById('shaarli-menu'),
WINDOW_CHANGE_EVENT = ('onorientationchange' in window) ? 'orientationchange':'resize';
function toggleHorizontal() {
[].forEach.call(
document.getElementById('shaarli-menu').querySelectorAll('.menu-transform'),
function(el){
el.classList.toggle('pure-menu-horizontal');
}
);
};
function toggleMenu() {
// 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() {
if (menu.classList.contains('open')) {
toggleMenu();
}
}
var menuToggle = document.getElementById('menu-toggle');
if (menuToggle != null) {
menuToggle.addEventListener('click', function (e) {
toggleMenu();
});
}
window.addEventListener(WINDOW_CHANGE_EVENT, closeMenu);
})(this, this.document);
/**
* Fold/Expand shaares description and thumbnail.
*/
var foldAllButtons = document.getElementsByClassName('fold-all');
var foldButtons = document.getElementsByClassName('fold-button');
[].forEach.call(foldButtons, function (foldButton) {
// Retrieve description
var description = null;
var thumbnail = null;
var 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', function (event) {
event.preventDefault();
toggleFold(event.target, description, thumbnail);
});
});
if (foldAllButtons != null) {
[].forEach.call(foldAllButtons, function (foldAllButton) {
foldAllButton.addEventListener('click', function (event) {
event.preventDefault();
var state = foldAllButton.firstElementChild.getAttribute('class').indexOf('down') != -1 ? 'down' : 'up';
[].forEach.call(foldButtons, function (foldButton) {
if (foldButton.firstElementChild.classList.contains('fa-chevron-up') && state == 'down'
|| foldButton.firstElementChild.classList.contains('fa-chevron-down') && state == 'up'
) {
return;
}
// Retrieve description
var description = null;
var thumbnail = null;
var 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');
});
});
}
function toggleFold(button, description, thumb)
{
// Switch fold/expand - up = fold
if (button.classList.contains('fa-chevron-up')) {
button.title = 'Expand';
if (description != null) {
description.style.display = 'none';
}
if (thumb != null) {
thumb.style.display = 'none';
}
}
else {
button.title = 'Fold';
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');
}
/**
* Confirmation message before deletion.
*/
var deleteLinks = document.querySelectorAll('.confirm-delete');
[].forEach.call(deleteLinks, function(deleteLink) {
deleteLink.addEventListener('click', function(event) {
if(! confirm('Are you sure you want to delete this link ?')) {
event.preventDefault();
}
});
});
/**
* Close alerts
*/
var closeLinks = document.querySelectorAll('.pure-alert-close');
[].forEach.call(closeLinks, function(closeLink) {
closeLink.addEventListener('click', function(event) {
var alert = getParentByClass(event.target, 'pure-alert-closable');
alert.style.display = 'none';
});
});
/**
* New version dismiss.
* Hide the message for one week using localStorage.
*/
var newVersionDismiss = document.getElementById('new-version-dismiss');
var newVersionMessage = document.querySelector('.new-version-message');
if (newVersionMessage != null
&& localStorage.getItem('newVersionDismiss') != null
&& parseInt(localStorage.getItem('newVersionDismiss')) + 7*24*60*60*1000 > (new Date()).getTime()
) {
newVersionMessage.style.display = 'none';
}
if (newVersionDismiss != null) {
newVersionDismiss.addEventListener('click', function () {
localStorage.setItem('newVersionDismiss', (new Date()).getTime());
});
}
var hiddenReturnurl = document.getElementsByName('returnurl');
if (hiddenReturnurl != null) {
hiddenReturnurl.value = window.location.href;
}
/**
* Autofocus text fields
*/
var autofocusElements = document.querySelectorAll('.autofocus');
var breakLoop = false;
[].forEach.call(autofocusElements, function(autofocusElement) {
if (autofocusElement.value == '' && ! breakLoop) {
autofocusElement.focus();
breakLoop = true;
}
});
/**
* Handle sub menus/forms
*/
var openers = document.getElementsByClassName('subheader-opener');
if (openers != null) {
[].forEach.call(openers, function(opener) {
opener.addEventListener('click', function(event) {
event.preventDefault();
var id = opener.getAttribute('data-open-id');
var sub = document.getElementById(id);
if (sub != null) {
[].forEach.call(document.getElementsByClassName('subheader-form'), function (element) {
if (element != sub) {
removeClass(element, 'open')
}
});
sub.classList.toggle('open');
}
});
});
}
function removeClass(element, classname) {
element.className = element.className.replace(new RegExp('(?:^|\\s)'+ classname + '(?:\\s|$)'), ' ');
}
/**
* Remove CSS target padding (for fixed bar)
*/
if (location.hash != '') {
var anchor = document.getElementById(location.hash.substr(1));
if (anchor != null) {
var padsize = anchor.clientHeight;
this.window.scroll(0, this.window.scrollY - padsize);
anchor.style.paddingTop = 0;
}
}
/**
* Text area resizer
*/
var description = document.getElementById('lf_description');
var observe = function (element, event, handler) {
element.addEventListener(event, handler, false);
};
function init () {
function resize () {
/* Fix jumpy resizing: https://stackoverflow.com/a/18262927/1484919 */
var 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);
}
observe(description, 'change', resize);
observe(description, 'cut', delayedResize);
observe(description, 'paste', delayedResize);
observe(description, 'drop', delayedResize);
observe(description, 'keydown', delayedResize);
resize();
}
if (description != null) {
init();
// Submit editlink form with CTRL + Enter in the text area.
description.addEventListener('keydown', function (event) {
if (event.ctrlKey && event.keyCode === 13) {
document.getElementById('button-save-edit').click();
}
});
}
/**
* Awesomplete trigger.
*/
var tags = document.getElementById('lf_tags');
if (tags != null) {
awesompleteUniqueTag('#lf_tags');
}
/**
* bLazy trigger
*/
var picwall = document.getElementById('picwall_container');
if (picwall != null) {
var bLazy = new Blazy();
}
/**
* Bookmarklet alert
*/
var bookmarkletLinks = document.querySelectorAll('.bookmarklet-link');
var bkmMessage = document.getElementById('bookmarklet-alert');
[].forEach.call(bookmarkletLinks, function(link) {
link.addEventListener('click', function(event) {
event.preventDefault();
alert(bkmMessage.value);
});
});
/**
* Firefox Social
*/
var ffButton = document.getElementById('ff-social-button');
if (ffButton != null) {
ffButton.addEventListener('click', function(event) {
activateFirefoxSocial(event.target);
});
}
/**
* Plugin admin order
*/
var orderPA = document.querySelectorAll('.order');
[].forEach.call(orderPA, function(link) {
link.addEventListener('click', function(event) {
event.preventDefault();
if (event.target.classList.contains('order-up')) {
return orderUp(event.target.parentNode.parentNode.getAttribute('data-order'));
} else if (event.target.classList.contains('order-down')) {
return orderDown(event.target.parentNode.parentNode.getAttribute('data-order'));
}
});
});
var continent = document.getElementById('continent');
var city = document.getElementById('city');
if (continent != null && city != null) {
continent.addEventListener('change', function (event) {
hideTimezoneCities(city, continent.options[continent.selectedIndex].value, true);
});
hideTimezoneCities(city, continent.options[continent.selectedIndex].value, false);
}
/**
* Bulk actions
*/
var linkCheckboxes = document.querySelectorAll('.delete-checkbox');
var bar = document.getElementById('actions');
[].forEach.call(linkCheckboxes, function(checkbox) {
checkbox.style.display = 'block';
checkbox.addEventListener('click', function(event) {
var count = 0;
var linkCheckedCheckboxes = document.querySelectorAll('.delete-checkbox:checked');
[].forEach.call(linkCheckedCheckboxes, function(checkbox) {
count++;
});
if (count == 0 && bar.classList.contains('open')) {
bar.classList.toggle('open');
} else if (count > 0 && ! bar.classList.contains('open')) {
bar.classList.toggle('open');
}
});
});
var deleteButton = document.getElementById('actions-delete');
var token = document.querySelector('input[type="hidden"][name="token"]');
if (deleteButton != null && token != null) {
deleteButton.addEventListener('click', function(event) {
event.preventDefault();
var links = [];
var linkCheckedCheckboxes = document.querySelectorAll('.delete-checkbox:checked');
[].forEach.call(linkCheckedCheckboxes, function(checkbox) {
links.push({
'id': checkbox.value,
'title': document.querySelector('.linklist-item[data-id="'+ checkbox.value +'"] .linklist-link').innerHTML
});
});
var message = 'Are you sure you want to delete '+ links.length +' links?\n';
message += 'This action is IRREVERSIBLE!\n\nTitles:\n';
var ids = [];
links.forEach(function(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
*/
var tagList = document.querySelector('input[name="taglist"]');
var existingTags = tagList ? tagList.value.split(' ') : [];
var awesomepletes = [];
// Display/Hide rename form
var renameTagButtons = document.querySelectorAll('.rename-tag');
[].forEach.call(renameTagButtons, function(rename) {
rename.addEventListener('click', function(event) {
event.preventDefault();
var block = findParent(event.target, 'div', {'class': 'tag-list-item'});
var 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
var renameTagSubmits = document.querySelectorAll('.validate-rename-tag');
[].forEach.call(renameTagSubmits, function(rename) {
rename.addEventListener('click', function(event) {
event.preventDefault();
var block = findParent(event.target, 'div', {'class': 'tag-list-item'});
var input = block.querySelector('.rename-tag-input');
var totag = input.value.replace('/"/g', '\\"');
if (totag.trim() == '') {
return;
}
var fromtag = block.getAttribute('data-tag');
var token = document.getElementById('token').value;
xhr = new XMLHttpRequest();
xhr.open('POST', '?do=changetag');
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhr.onload = function() {
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
for (var key in existingTags) {
if (existingTags[key] == fromtag) {
existingTags[key] = totag;
}
}
awesomepletes = updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
}
};
xhr.send('renametag=1&fromtag='+ encodeURIComponent(fromtag) +'&totag='+ encodeURIComponent(totag) +'&token='+ token);
refreshToken();
});
});
// Validate input with enter key
var renameTagInputs = document.querySelectorAll('.rename-tag-input');
[].forEach.call(renameTagInputs, function(rename) {
rename.addEventListener('keypress', function(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)
var deleteTagButtons = document.querySelectorAll('.delete-tag');
[].forEach.call(deleteTagButtons, function(rename) {
rename.style.display = 'inline';
rename.addEventListener('click', function(event) {
event.preventDefault();
var block = findParent(event.target, 'div', {'class': 'tag-list-item'});
var tag = block.getAttribute('data-tag');
var token = document.getElementById('token').value;
if (confirm('Are you sure you want to delete the tag "'+ tag +'"?')) {
xhr = new XMLHttpRequest();
xhr.open('POST', '?do=changetag');
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhr.onload = function() {
block.remove();
};
xhr.send(encodeURI('deletetag=1&fromtag='+ tag +'&token='+ token));
refreshToken();
}
});
});
updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
};
/**
* 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.
*/
function findParent(element, tagName, attributes)
{
while (element) {
if (element.tagName.toLowerCase() == tagName) {
var match = true;
for (var key in attributes) {
if (! element.hasAttribute(key)
|| (attributes[key] != '' && element.getAttribute(key).indexOf(attributes[key]) == -1)
) {
match = false;
break;
}
}
if (match) {
return element;
}
}
element = element.parentElement;
}
return null;
}
/**
* Ajax request to refresh the CSRF token.
*/
function refreshToken()
{
var xhr = new XMLHttpRequest();
xhr.open('GET', '?do=token');
xhr.onload = function() {
var token = document.getElementById('token');
token.setAttribute('value', xhr.responseText);
};
xhr.send();
}
/**
* 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
*/
function updateAwesompleteList(selector, tags, instances)
{
// First load: create Awesomplete instances
if (instances.length == 0) {
var elements = document.querySelectorAll(selector);
[].forEach.call(elements, function (element) {
instances.push(new Awesomplete(
element,
{'list': tags}
));
});
} else {
// Update awesomplete tag list
for (var key in instances) {
instances[key].list = tags;
}
}
return instances;
}
/**
* html_entities in JS
*
* @see http://stackoverflow.com/questions/18749591/encode-html-entities-in-javascript
*/
function htmlEntities(str)
{
return str.replace(/[\u00A0-\u9999<>\&]/gim, function(i) {
return '&#'+i.charCodeAt(0)+';';
});
}
function activateFirefoxSocial(node) {
var loc = location.href;
var baseURL = loc.substring(0, loc.lastIndexOf("/") + 1);
var title = document.title;
// Keeping the data separated (ie. not in the DOM) so that it's maintainable and diffable.
var data = {
name: title,
description: "The personal, minimalist, super-fast, database free, bookmarking service by the Shaarli community.",
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));
var 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
*/
function hideTimezoneCities(cities, currentContinent) {
var first = true;
if (reset == null) {
reset = false;
}
[].forEach.call(cities, function (option) {
if (option.getAttribute('data-continent') != currentContinent) {
option.className = 'hidden';
} else {
option.className = '';
if (reset === true && first === true) {
option.setAttribute('selected', 'selected');
first = false;
}
}
});
}