philomena/assets/js/boorujs.js

119 lines
3.7 KiB
JavaScript

/**
* BoorUJS
*
* Apply event-based actions through data-* attributes. The attributes are structured like so: [data-event-action]
*/
import { $, $$ } from './utils/dom';
import { fetchHtml, handleError } from './utils/requests';
import { showBlock } from './utils/image';
import { addTag } from './tagsinput';
// Event types and any qualifying conditions - return true to not run action
const types = {
click(event) { return event.button !== 0; /* Left-click only */ },
change() { /* No qualifier */ },
fetchcomplete() { /* No qualifier */ },
};
const actions = {
hide(data) { selectorCb(data.base, data.value, el => el.classList.add('hidden')); },
tabHide(data) { selectorCbChildren(data.base, data.value, el => el.classList.add('hidden')); },
show(data) { selectorCb(data.base, data.value, el => el.classList.remove('hidden')); },
toggle(data) { selectorCb(data.base, data.value, el => el.classList.toggle('hidden')); },
submit(data) { selectorCb(data.base, data.value, el => el.submit()); },
disable(data) { selectorCb(data.base, data.value, el => el.disabled = true); },
copy(data) { document.querySelector(data.value).select();
document.execCommand('copy'); },
inputvalue(data) { document.querySelector(data.value).value = data.el.dataset.setValue; },
selectvalue(data) { document.querySelector(data.value).value = data.el.querySelector(':checked').dataset.setValue; },
checkall(data) { $$(`${data.value} input[type=checkbox]`).forEach(c => { c.checked = !c.checked; }) },
focus(data) { document.querySelector(data.value).focus(); },
preventdefault() { /* The existence of this entry is enough */ },
addtag(data) {
addTag(document.querySelector(data.el.closest('[data-target]').dataset.target), data.el.dataset.tagName);
},
tab(data) {
const block = data.el.parentNode.parentNode,
newTab = $(`.block__tab[data-tab="${data.value}"]`),
loadTab = data.el.dataset.loadTab;
// Switch tab
const selectedTab = block.querySelector('.selected');
if (selectedTab) {
selectedTab.classList.remove('selected');
}
data.el.classList.add('selected');
// Switch contents
this.tabHide({ base: block, value: '.block__tab' });
this.show({ base: block, value: `.block__tab[data-tab="${data.value}"]` });
// If the tab has a 'data-load-tab' attribute, load and insert the content
if (loadTab && !newTab.dataset.loaded) {
fetchHtml(loadTab)
.then(handleError)
.then(response => response.text())
.then(response => newTab.innerHTML = response)
.then(() => newTab.dataset.loaded = true)
.catch(() => newTab.textContent = 'Error!');
}
},
unfilter(data) { showBlock(data.el.closest('.image-show-container')); },
};
// Use this function to apply a callback to elements matching the selectors
function selectorCb(base = document, selector, cb) {
[].forEach.call(base.querySelectorAll(selector), cb);
}
function selectorCbChildren(base = document, selector, cb) {
const sel = $$(selector, base);
for (const el of base.children) {
if (!sel.includes(el)) continue;
cb(el);
}
}
function matchAttributes(event) {
if (!types[event.type](event)) {
for (const action in actions) {
const attr = `data-${event.type}-${action.toLowerCase()}`,
el = event.target && event.target.closest(`[${attr}]`),
value = el && el.getAttribute(attr);
if (el) {
// Return true if you don't want to preventDefault
actions[action]({ attr, el, value }) || event.preventDefault();
}
}
}
}
function registerEvents() {
for (const type in types) document.addEventListener(type, matchAttributes);
}
export { registerEvents };