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fix: only resolve once per selector query

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This commit is contained in:
cha0s 2019-04-24 02:44:35 -05:00
parent 4564aec67f
commit 950c598c5a
1 changed files with 11 additions and 5 deletions
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16
packages/graphics/stage.js
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@ -37,7 +37,7 @@ export class Stage extends decorate(Container) {
this._transformRatio = 1;
// UI DOM node.
this.ui = this.createUiLayer();
this._queuedFindSelectors = [];
this._queuedFindSelectors = {};
// Event handlers.
this.onWindowResize = this.onWindowResize.bind(this);
window.addEventListener('resize', this.onWindowResize);
@ -115,18 +115,24 @@ export class Stage extends decorate(Container) {
if (node) {
return Promise.resolve(node);
}
const queued = this._queuedFindSelectors[selector];
if (queued) {
return queued.promise;
}
let resolve;
const promise = new Promise((resolve_) => resolve = resolve_);
this._queuedFindSelectors.push({resolve, selector});
this._queuedFindSelectors[selector] = {resolve, promise};
return promise
}
flushUiElements() {
for (let i = 0; i < this._queuedFindSelectors.length; i++) {
const {resolve, selector} = this._queuedFindSelectors[i];
const selectors = Object.keys(this._queuedFindSelectors);
for (let i = 0; i < selectors.length; i++) {
const selector = selectors[i];
const {resolve} = this._queuedFindSelectors[selector];
resolve(this.ui.querySelector(selector));
}
this._queuedFindSelectors = [];
this._queuedFindSelectors = {};
}
focus() {