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refactor: sync parse tree

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EnixCoda 2018-11-03 23:55:33 +08:00
parent cae6477eb4
commit 1b734a48f0
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1 changed files with 13 additions and 27 deletions
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40
src/utils/visibleNodesGenerator.js
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@ -19,6 +19,8 @@
* v stable
*/
const SEARCH_DELAY = 250
function getFilterFunc(keyRegex) {
return function filterFunc({ name }) {
return keyRegex.test(name)
@ -43,37 +45,21 @@ function search(treeNodes, searchKey) {
function debounce(func, delay) {
let timer
return (...args) => {
return new Promise(resolve => {
window.clearTimeout(timer)
timer = window.setTimeout(() => resolve(func(...args)), delay)
})
}
}
export const debouncedSearch = debounce(search, 250)
function runIdle(func) {
return new Promise(resolve => {
window.requestIdleCallback(async () => resolve(await func()))
return (...args) => new Promise(resolve => {
window.clearTimeout(timer)
timer = window.setTimeout(() => resolve(func(...args)), delay)
})
}
function promisifyAsyncFunc(func) {
return (...args) => new Promise(async resolve => resolve(await func(...args)))
}
export const debouncedSearch = debounce(search, SEARCH_DELAY)
async function asyncMap(arr, asyncCallback) {
return await Promise.all(arr.map(promisifyAsyncFunc(asyncCallback)))
}
async function getNodes(root) {
return await runIdle(async () => {
if (!root.contents) return []
return [].concat(
...await asyncMap(root.contents, async node => [node, ...await getNodes(node)])
)
function getNodes(root, nodes = []) {
if (!root.contents) return
root.contents.forEach(node => {
nodes.push(node)
getNodes(node, nodes)
})
return nodes
}
function compressTree(root, prefix = []) {
@ -108,7 +94,7 @@ export default class VisibleNodesGenerator {
async plantTree(root) {
this.root = root
this.nodes = await getNodes(root)
this.nodes = getNodes(root)
this.compressedRoot = compressTree(root)
await this.search()