@eliorar/angular-cesium
Version:
Angular library for working with Cesium.
64 lines • 10.1 kB
JavaScript
import { Injectable } from '@angular/core';
import { SmartAssigner } from '../smart-assigner/smart-assigner.service';
import * as i0 from "@angular/core";
import * as i1 from "@auscope/angular2parse";
import * as i2 from "../json-mapper/json-mapper.service";
export class CesiumProperties {
constructor(_parser, _jsonMapper) {
this._parser = _parser;
this._jsonMapper = _jsonMapper;
this._assignersCache = new Map();
this._evaluatorsCache = new Map();
}
_compile(expression, withCache = true) {
const cesiumDesc = {};
const propsMap = new Map();
const resultMap = this._jsonMapper.map(expression);
resultMap.forEach((resultExpression, prop) => propsMap.set(prop, {
expression: resultExpression,
get: this._parser.eval(resultExpression)
}));
propsMap.forEach((value, prop) => {
if (withCache) {
cesiumDesc[prop || 'undefined'] = `cache.get(\`${value.expression}\`, () => propsMap.get('${prop}').get(context))`;
}
else {
cesiumDesc[prop || 'undefined'] = `propsMap.get('${prop}').get(context)`;
}
});
const fnBody = `return ${JSON.stringify(cesiumDesc).replace(/"/g, '')};`;
const getFn = new Function('propsMap', 'cache', 'context', fnBody);
return function evaluateCesiumProps(cache, context) {
return getFn(propsMap, cache, context);
};
}
_build(expression) {
const props = Array.from(this._jsonMapper.map(expression).keys());
const smartAssigner = SmartAssigner.create(props);
return function assignCesiumProps(oldVal, newVal) {
return smartAssigner(oldVal, newVal);
};
}
createEvaluator(expression, withCache = true, newEvaluator = false) {
if (!newEvaluator && this._evaluatorsCache.has(expression)) {
return this._evaluatorsCache.get(expression);
}
const evaluatorFn = this._compile(expression, withCache);
this._evaluatorsCache.set(expression, evaluatorFn);
return evaluatorFn;
}
createAssigner(expression) {
if (this._assignersCache.has(expression)) {
return this._assignersCache.get(expression);
}
const assignFn = this._build(expression);
this._assignersCache.set(expression, assignFn);
return assignFn;
}
}
CesiumProperties.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.4.0", ngImport: i0, type: CesiumProperties, deps: [{ token: i1.Parse }, { token: i2.JsonMapper }], target: i0.ɵɵFactoryTarget.Injectable });
CesiumProperties.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "13.4.0", ngImport: i0, type: CesiumProperties });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.4.0", ngImport: i0, type: CesiumProperties, decorators: [{
type: Injectable
}], ctorParameters: function () { return [{ type: i1.Parse }, { type: i2.JsonMapper }]; } });
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