forked from mirrors/bookwyrm
322 lines
9.2 KiB
JavaScript
322 lines
9.2 KiB
JavaScript
/* exported BookWyrm */
|
|
/* globals TabGroup */
|
|
|
|
let BookWyrm = new class {
|
|
constructor() {
|
|
this.MAX_FILE_SIZE_BYTES = 10 * 1000000
|
|
this.initOnDOMLoaded();
|
|
this.initReccuringTasks();
|
|
this.initEventListeners();
|
|
}
|
|
|
|
initEventListeners() {
|
|
document.querySelectorAll('[data-controls]')
|
|
.forEach(button => button.addEventListener(
|
|
'click',
|
|
this.toggleAction.bind(this))
|
|
);
|
|
|
|
document.querySelectorAll('.interaction')
|
|
.forEach(button => button.addEventListener(
|
|
'submit',
|
|
this.interact.bind(this))
|
|
);
|
|
|
|
document.querySelectorAll('.hidden-form input')
|
|
.forEach(button => button.addEventListener(
|
|
'change',
|
|
this.revealForm.bind(this))
|
|
);
|
|
|
|
document.querySelectorAll('[data-back]')
|
|
.forEach(button => button.addEventListener(
|
|
'click',
|
|
this.back)
|
|
);
|
|
|
|
document.querySelectorAll('input[type="file"]')
|
|
.forEach(node => node.addEventListener(
|
|
'change',
|
|
this.disableIfTooLarge.bind(this)
|
|
));
|
|
}
|
|
|
|
/**
|
|
* Execute code once the DOM is loaded.
|
|
*/
|
|
initOnDOMLoaded() {
|
|
const bookwyrm = this
|
|
|
|
window.addEventListener('DOMContentLoaded', function() {
|
|
document.querySelectorAll('.tab-group')
|
|
.forEach(tabs => new TabGroup(tabs));
|
|
document.querySelectorAll('input[type="file"]').forEach(
|
|
bookwyrm.disableIfTooLarge.bind(bookwyrm)
|
|
)
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Execute recurring tasks.
|
|
*/
|
|
initReccuringTasks() {
|
|
// Polling
|
|
document.querySelectorAll('[data-poll]')
|
|
.forEach(liveArea => this.polling(liveArea));
|
|
}
|
|
|
|
/**
|
|
* Go back in browser history.
|
|
*
|
|
* @param {Event} event
|
|
* @return {undefined}
|
|
*/
|
|
back(event) {
|
|
event.preventDefault();
|
|
history.back();
|
|
}
|
|
|
|
/**
|
|
* Update a counter with recurring requests to the API
|
|
* The delay is slightly randomized and increased on each cycle.
|
|
*
|
|
* @param {Object} counter - DOM node
|
|
* @param {int} delay - frequency for polling in ms
|
|
* @return {undefined}
|
|
*/
|
|
polling(counter, delay) {
|
|
const bookwyrm = this;
|
|
|
|
delay = delay || 10000;
|
|
delay += (Math.random() * 1000);
|
|
|
|
setTimeout(function() {
|
|
fetch('/api/updates/' + counter.dataset.poll)
|
|
.then(response => response.json())
|
|
.then(data => bookwyrm.updateCountElement(counter, data));
|
|
|
|
bookwyrm.polling(counter, delay * 1.25);
|
|
}, delay, counter);
|
|
}
|
|
|
|
/**
|
|
* Update a counter.
|
|
*
|
|
* @param {object} counter - DOM node
|
|
* @param {object} data - json formatted response from a fetch
|
|
* @return {undefined}
|
|
*/
|
|
updateCountElement(counter, data) {
|
|
const currentCount = counter.innerText;
|
|
const count = data.count;
|
|
const hasMentions = data.has_mentions;
|
|
|
|
if (count != currentCount) {
|
|
this.addRemoveClass(counter.closest('[data-poll-wrapper]'), 'is-hidden', count < 1);
|
|
counter.innerText = count;
|
|
this.addRemoveClass(counter.closest('[data-poll-wrapper]'), 'is-danger', hasMentions);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Toggle form.
|
|
*
|
|
* @param {Event} event
|
|
* @return {undefined}
|
|
*/
|
|
revealForm(event) {
|
|
let trigger = event.currentTarget;
|
|
let hidden = trigger.closest('.hidden-form').querySelectorAll('.is-hidden')[0];
|
|
|
|
this.addRemoveClass(hidden, 'is-hidden', !hidden);
|
|
}
|
|
|
|
/**
|
|
* Execute actions on targets based on triggers.
|
|
*
|
|
* @param {Event} event
|
|
* @return {undefined}
|
|
*/
|
|
toggleAction(event) {
|
|
let trigger = event.currentTarget;
|
|
let pressed = trigger.getAttribute('aria-pressed') === 'false';
|
|
let targetId = trigger.dataset.controls;
|
|
|
|
// Toggle pressed status on all triggers controlling the same target.
|
|
document.querySelectorAll('[data-controls="' + targetId + '"]')
|
|
.forEach(otherTrigger => otherTrigger.setAttribute(
|
|
'aria-pressed',
|
|
otherTrigger.getAttribute('aria-pressed') === 'false'
|
|
));
|
|
|
|
// @todo Find a better way to handle the exception.
|
|
if (targetId && ! trigger.classList.contains('pulldown-menu')) {
|
|
let target = document.getElementById(targetId);
|
|
|
|
this.addRemoveClass(target, 'is-hidden', !pressed);
|
|
this.addRemoveClass(target, 'is-active', pressed);
|
|
}
|
|
|
|
// Show/hide pulldown-menus.
|
|
if (trigger.classList.contains('pulldown-menu')) {
|
|
this.toggleMenu(trigger, targetId);
|
|
}
|
|
|
|
// Show/hide container.
|
|
let container = document.getElementById('hide-' + targetId);
|
|
|
|
if (container) {
|
|
this.toggleContainer(container, pressed);
|
|
}
|
|
|
|
// Check checkbox, if appropriate.
|
|
let checkbox = trigger.dataset.controlsCheckbox;
|
|
|
|
if (checkbox) {
|
|
this.toggleCheckbox(checkbox, pressed);
|
|
}
|
|
|
|
// Set focus, if appropriate.
|
|
let focus = trigger.dataset.focusTarget;
|
|
|
|
if (focus) {
|
|
this.toggleFocus(focus);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Show or hide menus.
|
|
*
|
|
* @param {Event} event
|
|
* @return {undefined}
|
|
*/
|
|
toggleMenu(trigger, targetId) {
|
|
let expanded = trigger.getAttribute('aria-expanded') == 'false';
|
|
|
|
trigger.setAttribute('aria-expanded', expanded);
|
|
|
|
if (targetId) {
|
|
let target = document.getElementById(targetId);
|
|
|
|
this.addRemoveClass(target, 'is-active', expanded);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Show or hide generic containers.
|
|
*
|
|
* @param {object} container - DOM node
|
|
* @param {boolean} pressed - Is the trigger pressed?
|
|
* @return {undefined}
|
|
*/
|
|
toggleContainer(container, pressed) {
|
|
this.addRemoveClass(container, 'is-hidden', pressed);
|
|
}
|
|
|
|
/**
|
|
* Check or uncheck a checbox.
|
|
*
|
|
* @param {object} checkbox - DOM node
|
|
* @param {boolean} pressed - Is the trigger pressed?
|
|
* @return {undefined}
|
|
*/
|
|
toggleCheckbox(checkbox, pressed) {
|
|
document.getElementById(checkbox).checked = !!pressed;
|
|
}
|
|
|
|
/**
|
|
* Give the focus to an element.
|
|
* Only move the focus based on user interactions.
|
|
*
|
|
* @param {string} nodeId - ID of the DOM node to focus (button, link…)
|
|
* @return {undefined}
|
|
*/
|
|
toggleFocus(nodeId) {
|
|
let node = document.getElementById(nodeId);
|
|
|
|
node.focus();
|
|
|
|
setTimeout(function() {
|
|
node.selectionStart = node.selectionEnd = 10000;
|
|
}, 0);
|
|
}
|
|
|
|
/**
|
|
* Make a request and update the UI accordingly.
|
|
* This function is used for boosts, favourites, follows and unfollows.
|
|
*
|
|
* @param {Event} event
|
|
* @return {undefined}
|
|
*/
|
|
interact(event) {
|
|
event.preventDefault();
|
|
|
|
const bookwyrm = this;
|
|
const form = event.currentTarget;
|
|
const relatedforms = document.querySelectorAll(`.${form.dataset.id}`);
|
|
|
|
// Toggle class on all related forms.
|
|
relatedforms.forEach(relatedForm => bookwyrm.addRemoveClass(
|
|
relatedForm,
|
|
'is-hidden',
|
|
relatedForm.className.indexOf('is-hidden') == -1
|
|
));
|
|
|
|
this.ajaxPost(form).catch(error => {
|
|
// @todo Display a notification in the UI instead.
|
|
console.warn('Request failed:', error);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Submit a form using POST.
|
|
*
|
|
* @param {object} form - Form to be submitted
|
|
* @return {Promise}
|
|
*/
|
|
ajaxPost(form) {
|
|
return fetch(form.action, {
|
|
method : "POST",
|
|
body: new FormData(form)
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Add or remove a class based on a boolean condition.
|
|
*
|
|
* @param {object} node - DOM node to change class on
|
|
* @param {string} classname - Name of the class
|
|
* @param {boolean} add - Add?
|
|
* @return {undefined}
|
|
*/
|
|
addRemoveClass(node, classname, add) {
|
|
if (add) {
|
|
node.classList.add(classname);
|
|
} else {
|
|
node.classList.remove(classname);
|
|
}
|
|
}
|
|
|
|
disableIfTooLarge(eventOrElement) {
|
|
const { addRemoveClass, MAX_FILE_SIZE_BYTES } = this
|
|
const element = eventOrElement.currentTarget || eventOrElement
|
|
|
|
const submits = element.form.querySelectorAll('[type="submit"]')
|
|
const warns = element.parentElement.querySelectorAll('.file-too-big')
|
|
const isTooBig = element.files &&
|
|
element.files[0] &&
|
|
element.files[0].size > MAX_FILE_SIZE_BYTES
|
|
|
|
if (isTooBig) {
|
|
submits.forEach(submitter => submitter.disabled = true)
|
|
warns.forEach(
|
|
sib => addRemoveClass(sib, 'is-hidden', false)
|
|
)
|
|
} else {
|
|
submits.forEach(submitter => submitter.disabled = false)
|
|
warns.forEach(
|
|
sib => addRemoveClass(sib, 'is-hidden', true)
|
|
)
|
|
}
|
|
}
|
|
}
|