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File: public/js/lib/vue/src/compiler/resolve-slots.js

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File: public/js/lib/vue/src/compiler/resolve-slots.js
Role: Auxiliary data
Content type: text/plain
Description: Auxiliary data
Class: Silex MVC Blog
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Date: 7 years ago
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import { parseTemplate } from '../parsers/template' import { isTemplate, toArray, getBindAttr, warn } from '../util/index' /** * Scan and determine slot content distribution. * We do this during transclusion instead at compile time so that * the distribution is decoupled from the compilation order of * the slots. * * @param {Element|DocumentFragment} template * @param {Element} content * @param {Vue} vm */ export function resolveSlots (vm, content) { if (!content) { return } var contents = vm._slotContents = Object.create(null) var el, name for (var i = 0, l = content.children.length; i < l; i++) { el = content.children[i] /* eslint-disable no-cond-assign */ if (name = el.getAttribute('slot')) { (contents[name] || (contents[name] = [])).push(el) } /* eslint-enable no-cond-assign */ if (process.env.NODE_ENV !== 'production' && getBindAttr(el, 'slot')) { warn('The "slot" attribute must be static.', vm.$parent) } } for (name in contents) { contents[name] = extractFragment(contents[name], content) } if (content.hasChildNodes()) { const nodes = content.childNodes if ( nodes.length === 1 && nodes[0].nodeType === 3 && !nodes[0].data.trim() ) { return } contents['default'] = extractFragment(content.childNodes, content) } } /** * Extract qualified content nodes from a node list. * * @param {NodeList} nodes * @return {DocumentFragment} */ function extractFragment (nodes, parent) { var frag = document.createDocumentFragment() nodes = toArray(nodes) for (var i = 0, l = nodes.length; i < l; i++) { var node = nodes[i] if ( isTemplate(node) && !node.hasAttribute('v-if') && !node.hasAttribute('v-for') ) { parent.removeChild(node) node = parseTemplate(node, true) } frag.appendChild(node) } return frag }