1. angular-compile.git
  2. src
  3. CompileAttribute.ts
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import {
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Component,
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Input, Injectable,
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// OnInit,
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OnChanges, SimpleChanges, Type, ModuleWithProviders,
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NgModule,
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Compiler, NgModuleFactory,
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// Inject,
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} from '@angular/core';
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import {CommonModule} from '@angular/common';
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//import { BrowserModule } from '@angular/platform-browser';
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//let SingletonDefaultModule: NgModule;
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import {cloneDeep} from 'lodash';
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//import { CorifeusMaterialModule } from 'corifeus-web-material';
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const reverse = function (str: string) { return str.split('').reverse().join('') } const random = () => { return (Math.floor(Math.random() * (99999999999999999 - 10000000000000000)) + 10000000000000000).toString(16) }
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let currentIdTime: number;
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let currentId = 0; const nextId = () => { const now = Date.now(); if (currentIdTime !== now) { currentId = 0; currentIdTime = now } const comingId = ++currentId; const randomHex = reverse(random()).padStart(15, '0'); const timeHex = reverse(currentIdTime.toString(16).padStart(12, '0')) const comingIdHex = reverse(comingId.toString(16).padStart(3, '0')) const newId = `p3x-angular-compile-${timeHex}${comingIdHex}${randomHex}`; //console.log(newId) return newId }
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//const cache : any = {}; @Component({ selector: '[p3x-compile]', template: `
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<ng-container *ngIf="html !== undefined && html !== null && html.trim() !== ''">
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<ng-container *ngComponentOutlet="dynamicComponent; ngModuleFactory: dynamicModule;"></ng-container> </ng-container>
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`
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})
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@Injectable()
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export class CompileAttribute implements OnChanges { //export class CompileAttribute implements OnChanges ,OnInit {
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@Input('p3x-compile') html: string; @Input('p3x-compile-ctx')
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context: any;
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@Input('p3x-compile-error-handler')
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errorHandler: Function = undefined;
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dynamicComponent: any; dynamicModule: NgModuleFactory<any> | any;
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@Input('p3x-compile-module')
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module: NgModule;
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@Input('p3x-compile-imports') imports: Array<Type<any> | ModuleWithProviders | any[]>;
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constructor( // private container: ViewContainerRef, // private service: CompileService private compiler: Compiler, // @Inject('config') private config:CompileServiceConfig ) { } /* // not requires, since ngOnChanges does it first time change ngOnInit() { //console.log('ng init') // this.update(); } */ ngOnChanges(changes: SimpleChanges) { //console.log('ng one changes') this.update(); }
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update() {
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try {
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if (this.html === undefined || this.html === null || this.html.trim() === '') {
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// this.container.clear();
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this.dynamicComponent = undefined; this.dynamicModule = undefined; return; } /* // looks like Angular already is caching //console.log('html', this.html) const cacheKey = this.html; //console.log(Object.keys(cache).indexOf(cacheKey), cache) if (cache.hasOwnProperty(cacheKey)) { const currentCache = cache[cacheKey]; this.dynamicComponent = currentCache.dynamicComponent this.dynamicModule = currentCache.dynamicModule return ; } */
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this.dynamicComponent = this.createNewComponent(this.html, this.context); this.dynamicModule = this.compiler.compileModuleSync(this.createComponentModule(this.dynamicComponent));
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/* cache[cacheKey] = { dynamicComponent: this.dynamicComponent, dynamicModule: this.dynamicModule, }; */
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} catch (e) {
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if (this.errorHandler === undefined) { throw e; } else { this.errorHandler(e); }
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} /*
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// now we use it with ngComponentOutlet, since about angular 5
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await this.service.compile({ template: this.html, container: this.container, context: this.context,
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imports: this.imports, module: this.module
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})
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*/ }
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private createComponentModule(componentType: any) { let module: NgModule = {};
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if (this.module !== undefined) { module = cloneDeep(this.module);
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} /* else if (SingletonDefaultModule !== undefined && SingletonDefaultModule !== null) {
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module = cloneDeep(SingletonDefaultModule); }
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*/
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module.imports = module.imports || [];
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module.imports.push(CommonModule);
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if (this.imports !== undefined) { module.imports = module.imports.concat(this.imports) } if (module.declarations === undefined) { module.declarations = [ componentType ]; } else { module.declarations.push(componentType); } module.entryComponents = [ componentType ];
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@NgModule(module) class RuntimeComponentModule { }
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return RuntimeComponentModule; }
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private createNewComponent(html: string, context: any) {
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@Component({
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selector: nextId(),
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template: html }) class DynamicComponent { context: any = context; } return DynamicComponent;
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}
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}