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angular2 timeflies
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| System.config({ | |
| transpiler: 'typescript', | |
| typescriptOptions: { | |
| emitDecoratorMetadata: true | |
| }, | |
| map: { | |
| app: './src' | |
| }, | |
| packages: { | |
| app: { | |
| main: './main.ts', | |
| defaultExtension: 'ts' | |
| } | |
| } | |
| }); |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>angular2 playground</title> | |
| <script src="https://code.angularjs.org/2.0.0-beta.17/angular2-polyfills.js"></script> | |
| <script src="https://code.angularjs.org/tools/system.js"></script> | |
| <script src="https://code.angularjs.org/tools/typescript.js"></script> | |
| <script src="config.js"></script> | |
| <script src="https://code.angularjs.org/2.0.0-beta.17/Rx.js"></script> | |
| <script src="https://code.angularjs.org/2.0.0-beta.17/angular2.dev.js"></script> | |
| <script src="https://code.angularjs.org/2.0.0-beta.17/http.dev.js"></script> | |
| <script src="https://code.angularjs.org/2.0.0-beta.17/router.dev.js"></script> | |
| <script> | |
| System.import('app') | |
| .catch(console.error.bind(console)); | |
| </script> | |
| </head> | |
| <body> | |
| <app></app> | |
| </body> | |
| </html> |
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| import 'rxjs/Rx'; | |
| import {HTTP_PROVIDERS, Http} from 'angular2/http'; | |
| import {Component, ElementRef, NgZone} from 'angular2/core'; | |
| import {bootstrap} from 'angular2/platform/browser'; | |
| import {Observable} from 'rxjs/Observable'; | |
| import 'rxjs/add/observable/from'; | |
| import {Subject} from 'rxjs/Subject'; | |
| export class Message { | |
| message: Array<string>; | |
| constructor() { | |
| this.message = ('COME TO COMSYSTO AND BE HAPPY').split(''); | |
| } | |
| } | |
| interface LetterConfig { | |
| text: string; | |
| top: number; | |
| left: number; | |
| index: number; | |
| } | |
| @Component({ | |
| selector: 'timeflies', | |
| providers: [ Message ], | |
| template: ` | |
| <div style="background-color: papayawhip; height: 500px;"> | |
| <span *ngFor="let letter of letters" | |
| [style.color]="color" | |
| [style.left]="letter.left + 'px'" | |
| [style.top]="letter.top + 'px'" | |
| [style.position]="pos"> | |
| {{ letter.text }} | |
| </span> | |
| </div> | |
| ` | |
| }) | |
| export class Timeflies implements OnInit { | |
| pos = 'absolute'; | |
| color = 'red'; | |
| letters: LetterConfig[]; | |
| constructor( | |
| private service: Message, | |
| private el: ElementRef, | |
| private zone: NgZone) { | |
| } | |
| ngOnInit() { | |
| // initial mapping (before mouse moves) | |
| this.letters = this.service.message.map( | |
| (val, idx) => ({ | |
| text: val, | |
| top: 100, | |
| left: (idx * 20 + 50), | |
| index: idx | |
| }) | |
| ); | |
| this.zone.runOutsideAngular(() => { | |
| Observable | |
| .fromEvent(this.el.nativeElement, 'mousemove') | |
| .map((e: MouseEvent) => { | |
| // subtract offset of the element | |
| var o = this.el.nativeElement.getBoundingClientRect(); | |
| return { | |
| offsetX: e.clientX - o.left, | |
| offsetY: e.clientY - o.top | |
| }; | |
| }) | |
| .flatMap(delta => { | |
| return Observable | |
| .from(this.letters | |
| .map((val, index) => ({ | |
| letter: val.text, | |
| delta, | |
| index | |
| }))); | |
| }) | |
| .flatMap(letterConfig => { | |
| return (Observable | |
| .timer( (letterConfig.index + 1) * 100) | |
| .map(() => ({ | |
| text: letterConfig.letter, | |
| top: letterConfig.delta.offsetY, | |
| left: letterConfig.delta.offsetX + letterConfig.index * 20 + 20, | |
| index: letterConfig.index | |
| })); | |
| }) | |
| .subscribe(letterConfig => { | |
| // to render the letters, put them back into app zone | |
| this.zone.run(() => this.letters[letterConfig.index] = letterConfig); | |
| }); | |
| });//zone | |
| }// timeflies | |
| } | |
| @Component({ | |
| selector: 'app', | |
| directives: [Timeflies], | |
| template: `<timeflies></timeflies>` | |
| }) | |
| export class App{ | |
| constructor(){} | |
| } | |
| bootstrap(App, [HTTP_PROVIDERS]); | |
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