@aurigma/design-atoms/Services/ColorPreviewLoadAwaiter.js

Design Atoms is a part of Customer's Canvas SDK which allows for manipulating individual design elements through your code.

import { EquatableKeyDictionary } from "@aurigma/design-atoms-model";
import { Deferred } from "../Utils/Deferred";
export class ColorPreviewLoadAwaiter {
    constructor() {
        this._deferred = new Deferred();
        this._colors = new EquatableKeyDictionary();
        this.listener = (eventArgs) => {
            this._onColorLoaded(eventArgs);
        };
    }
    appendColor(color) {
        this._colors.set(color, false);
    }
    async waitForLoad() {
        return this._deferred.promise;
    }
    _onColorLoaded(eventArgs) {
        const { hasKey, key } = this._colors.tryGetKeyEqualTo(eventArgs.color);
        if (hasKey) {
            this._colors.set(key, true);
        }
        else {
            console.warn(`unexpected color event for color `, eventArgs.color, this._colors);
        }
        let t = true;
        for (let key of this._colors.keys()) {
            t = t && this._colors.get(key);
        }
        if (t == true) {
            this._deferred.resolve();
        }
    }
}
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