sharkey/src/client/directives/size.ts

70 lines
1.3 KiB
TypeScript

export default {
inserted(el, binding, vn) {
const query = binding.value;
/*
const addClassRecursive = (el: Element, cls: string) => {
el.classList.add(cls);
if (el.children) {
for (const child of el.children) {
addClassRecursive(child, cls);
}
}
};
const removeClassRecursive = (el: Element, cls: string) => {
el.classList.remove(cls);
if (el.children) {
for (const child of el.children) {
removeClassRecursive(child, cls);
}
}
};*/
const addClass = (el: Element, cls: string) => {
el.classList.add(cls);
};
const removeClass = (el: Element, cls: string) => {
el.classList.remove(cls);
};
const calc = () => {
const width = el.clientWidth;
for (const q of query) {
if (q.max) {
if (width <= q.max) {
addClass(el, 'max-width_' + q.max + 'px');
} else {
removeClass(el, 'max-width_' + q.max + 'px');
}
}
if (q.min) {
if (width >= q.min) {
addClass(el, 'min-width_' + q.min + 'px');
} else {
removeClass(el, 'min-width_' + q.min + 'px');
}
}
}
};
calc();
vn.context.$on('hook:activated', calc);
const ro = new ResizeObserver((entries, observer) => {
calc();
});
ro.observe(el);
el._ro_ = ro;
},
unbind(el, binding, vn) {
el._ro_.unobserve(el);
}
};