77 lines
No EOL
3 KiB
JavaScript
77 lines
No EOL
3 KiB
JavaScript
// Thanks to: https://github.com/airyland/vux/blob/v2/src/directives/transfer-dom/index.js
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// Thanks to: https://github.com/calebroseland/vue-dom-portal
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/**
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* Get target DOM Node
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* @param {(Node|string|Boolean)} [node=document.body] DOM Node, CSS selector, or Boolean
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* @return {Node} The target that the el will be appended to
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*/
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function getTarget (node) {
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if (node === void 0) {
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node = document.body
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}
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if (node === true) { return document.body }
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return node instanceof window.Node ? node : document.querySelector(node)
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}
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const directive = {
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inserted (el, { value }, vnode) {
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if ( el.dataset && el.dataset.transfer !== 'true') return false;
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el.className = el.className ? el.className + ' v-transfer-dom' : 'v-transfer-dom';
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const parentNode = el.parentNode;
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if (!parentNode) return;
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const home = document.createComment('');
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let hasMovedOut = false;
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if (value !== false) {
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parentNode.replaceChild(home, el); // moving out, el is no longer in the document
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getTarget(value).appendChild(el); // moving into new place
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hasMovedOut = true
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}
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if (!el.__transferDomData) {
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el.__transferDomData = {
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parentNode: parentNode,
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home: home,
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target: getTarget(value),
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hasMovedOut: hasMovedOut
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}
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}
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},
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componentUpdated (el, { value }) {
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if ( el.dataset && el.dataset.transfer !== 'true') return false;
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// need to make sure children are done updating (vs. `update`)
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const ref$1 = el.__transferDomData;
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if (!ref$1) return;
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// homes.get(el)
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const parentNode = ref$1.parentNode;
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const home = ref$1.home;
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const hasMovedOut = ref$1.hasMovedOut; // recall where home is
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if (!hasMovedOut && value) {
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// remove from document and leave placeholder
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parentNode.replaceChild(home, el);
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// append to target
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getTarget(value).appendChild(el);
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el.__transferDomData = Object.assign({}, el.__transferDomData, { hasMovedOut: true, target: getTarget(value) });
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} else if (hasMovedOut && value === false) {
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// previously moved, coming back home
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parentNode.replaceChild(el, home);
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el.__transferDomData = Object.assign({}, el.__transferDomData, { hasMovedOut: false, target: getTarget(value) });
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} else if (value) {
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// already moved, going somewhere else
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getTarget(value).appendChild(el);
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}
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},
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unbind (el) {
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if (el.dataset && el.dataset.transfer !== 'true') return false;
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el.className = el.className.replace('v-transfer-dom', '');
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const ref$1 = el.__transferDomData;
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if (!ref$1) return;
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if (el.__transferDomData.hasMovedOut === true) {
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el.__transferDomData.parentNode && el.__transferDomData.parentNode.appendChild(el)
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}
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el.__transferDomData = null
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}
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};
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export default directive; |