83 lines
2.4 KiB
JavaScript
83 lines
2.4 KiB
JavaScript
import { addClass, removeClass } from '../../utils/assist';
|
|
|
|
const Transition = {
|
|
beforeEnter(el) {
|
|
addClass(el, 'collapse-transition');
|
|
if (!el.dataset) el.dataset = {};
|
|
|
|
el.dataset.oldPaddingTop = el.style.paddingTop;
|
|
el.dataset.oldPaddingBottom = el.style.paddingBottom;
|
|
|
|
el.style.height = '0';
|
|
el.style.paddingTop = 0;
|
|
el.style.paddingBottom = 0;
|
|
},
|
|
|
|
enter(el) {
|
|
el.dataset.oldOverflow = el.style.overflow;
|
|
if (el.scrollHeight !== 0) {
|
|
el.style.height = el.scrollHeight + 'px';
|
|
el.style.paddingTop = el.dataset.oldPaddingTop;
|
|
el.style.paddingBottom = el.dataset.oldPaddingBottom;
|
|
} else {
|
|
el.style.height = '';
|
|
el.style.paddingTop = el.dataset.oldPaddingTop;
|
|
el.style.paddingBottom = el.dataset.oldPaddingBottom;
|
|
}
|
|
|
|
el.style.overflow = 'hidden';
|
|
},
|
|
|
|
afterEnter(el) {
|
|
// for safari: remove class then reset height is necessary
|
|
removeClass(el, 'collapse-transition');
|
|
el.style.height = '';
|
|
el.style.overflow = el.dataset.oldOverflow;
|
|
},
|
|
|
|
beforeLeave(el) {
|
|
if (!el.dataset) el.dataset = {};
|
|
el.dataset.oldPaddingTop = el.style.paddingTop;
|
|
el.dataset.oldPaddingBottom = el.style.paddingBottom;
|
|
el.dataset.oldOverflow = el.style.overflow;
|
|
|
|
el.style.height = el.scrollHeight + 'px';
|
|
el.style.overflow = 'hidden';
|
|
},
|
|
|
|
leave(el) {
|
|
if (el.scrollHeight !== 0) {
|
|
// for safari: add class after set height, or it will jump to zero height suddenly, weired
|
|
addClass(el, 'collapse-transition');
|
|
el.style.height = 0;
|
|
el.style.paddingTop = 0;
|
|
el.style.paddingBottom = 0;
|
|
}
|
|
},
|
|
|
|
afterLeave(el) {
|
|
removeClass(el, 'collapse-transition');
|
|
el.style.height = '';
|
|
el.style.overflow = el.dataset.oldOverflow;
|
|
el.style.paddingTop = el.dataset.oldPaddingTop;
|
|
el.style.paddingBottom = el.dataset.oldPaddingBottom;
|
|
}
|
|
};
|
|
|
|
export default {
|
|
name: 'CollapseTransition',
|
|
functional: true,
|
|
props: {
|
|
appear: Boolean
|
|
},
|
|
render(h, { children, props }) {
|
|
const data = {
|
|
on: Transition,
|
|
props: {
|
|
appear: props.appear
|
|
}
|
|
};
|
|
|
|
return h('transition', data, children);
|
|
}
|
|
};
|