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feat: async tree plant

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This commit is contained in:
EnixCoda 2018-08-05 18:26:40 +08:00
parent a0efbd47db
commit 71e815bdca
1 changed files with 22 additions and 6 deletions
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28
src/utils/visibleNodesGenerator.js
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@ -53,11 +53,27 @@ function debounce(func, delay) {
export const debouncedSearch = debounce(search, 250)
function getNodes(root) {
if (!root.contents) return []
return [].concat(
...root.contents.map(node => [node, ...getNodes(node)])
)
function runIdle(func) {
return new Promise(resolve => {
window.requestIdleCallback(async () => resolve(await func()))
})
}
function promisifyAsyncFunc(func) {
return (...args) => new Promise(async resolve => resolve(await func(...args)))
}
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 compressTree(root, prefix = []) {
@ -92,7 +108,7 @@ export default class VisibleNodesGenerator {
async plantTree(root) {
this.root = root
this.nodes = getNodes(root)
this.nodes = await getNodes(root)
this.compressedRoot = compressTree(root)
await this.search()