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@agm/drawing

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Angular Google Maps (AGM) extension for google maps drawing library

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import { Directive, EventEmitter, Input, isDevMode, NgZone, Output } from '@angular/core'; import { fromEventPattern } from 'rxjs'; export class AgmDrawingManager { constructor(_zone) { this._zone = _zone; /** * This event is fired when the user has finished drawing a circle. */ this.circleComplete = new EventEmitter(); /** * This event is fired when the user has finished drawing a marker. */ this.markerComplete = new EventEmitter(); /** * This event is fired when the user has finished drawing an overlay of any * type. */ this.overlayComplete = new EventEmitter(); /** * This event is fired when the user has finished drawing a polygon. */ this.polygonComplete = new EventEmitter(); /** * This event is fired when the user has finished drawing a polyline. */ this.polylineComplete = new EventEmitter(); /** * This event is fired when the user has finished drawing a rectangle. */ this.rectangleComplete = new EventEmitter(); this.eventSubscriptions = []; } setMap(map) { if (!google.maps.drawing && isDevMode()) { console.error('Cannot use drawing manager if drawing library is not ' + 'loaded. To fix, add libraries: [\'drawing\'] to the ' + 'lazyMapsAPILoaderConfig you passed to AgmCoreModule.forRoot'); return; } if (map && !this.drawingManager) { this.drawingManager = new google.maps.drawing.DrawingManager({ map, circleOptions: this.circleOptions, markerOptions: this.markerOptions, polygonOptions: this.polygonOptions, polylineOptions: this.polylineOptions, rectangleOptions: this.rectangleOptions, drawingControl: this.drawingControl, drawingControlOptions: this.drawingControlOptions, drawingMode: this.drawingMode, }); this.initEvents(this.drawingManager); } else if (!map && this.drawingManager) { this.drawingManager.setMap(null); } // else do nothing } initEvents(drawingManager) { this.eventSubscriptions.push(this.createMvcObservable('circlecomplete', drawingManager) .subscribe(circle => this._zone.run(() => this.circleComplete.next(circle)))); this.eventSubscriptions.push(this.createMvcObservable('markercomplete', drawingManager) .subscribe(marker => this._zone.run(() => this.markerComplete.next(marker)))); this.eventSubscriptions.push(this.createMvcObservable('polygoncomplete', drawingManager) .subscribe(polygon => this._zone.run(() => this.polygonComplete.next(polygon)))); this.eventSubscriptions.push(this.createMvcObservable('polylinecomplete', drawingManager) .subscribe(polyline => this._zone.run(() => this.polylineComplete.next(polyline)))); this.eventSubscriptions.push(this.createMvcObservable('overlaycomplete', drawingManager) .subscribe(overlayevent => this._zone.run(() => this.overlayComplete.next(overlayevent)))); this.eventSubscriptions.push(this.createMvcObservable('rectanglecomplete', drawingManager) .subscribe(rectangle => this._zone.run(() => this.rectangleComplete.next(rectangle)))); } createMvcObservable(eventName, mvcObject) { return fromEventPattern(handler => mvcObject.addListener(eventName, (event) => handler.apply(null, [event])), (_handler, evListener) => evListener.remove()); } ngOnChanges(changes) { if (!this.drawingManager) { return; } const options = Object.entries(changes) .map(([prop, change]) => [prop, change.currentValue]) .reduce((obj, [propName, propValue]) => { obj[propName] = propValue; return obj; }, {}); this.drawingManager.setOptions(options); } ngOnDestroy() { this.eventSubscriptions.forEach(subscription => subscription.unsubscribe()); } } AgmDrawingManager.decorators = [ { type: Directive, args: [{ selector: 'agm-drawing-manager', exportAs: 'agmDrawingManager', },] } ]; AgmDrawingManager.ctorParameters = () => [ { type: NgZone } ]; AgmDrawingManager.propDecorators = { drawingControl: [{ type: Input }], drawingMode: [{ type: Input }], drawingControlOptions: [{ type: Input }], circleOptions: [{ type: Input }], markerOptions: [{ type: Input }], polygonOptions: [{ type: Input }], polylineOptions: [{ type: Input }], rectangleOptions: [{ type: Input }], circleComplete: [{ type: Output }], markerComplete: [{ type: Output }], overlayComplete: [{ type: Output }], polygonComplete: [{ type: Output }], polylineComplete: [{ type: Output }], rectangleComplete: [{ type: Output }] }; //# 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{ Directive, EventEmitter, Input, isDevMode, NgZone, OnChanges, OnDestroy, Output, SimpleChanges } from '@angular/core';\nimport { fromEventPattern, Observable, Subscription } from 'rxjs';\n\n@Directive({\n  selector: 'agm-drawing-manager',\n  exportAs: 'agmDrawingManager',\n})\nexport class AgmDrawingManager implements OnChanges, OnDestroy{\n\n  /**\n   * The enabled/disabled state of the drawing control. Defaults to `true`.\n   *\n   */\n  @Input() drawingControl: boolean;\n\n  /**\n   * The DrawingManager's drawing mode, which defines the type of overlay to be\n   * added on the map. A drawing mode of null means that the user can interact\n   * with the map as normal, and clicks do not draw anything.\n   */\n  @Input() drawingMode: google.maps.drawing.OverlayType | null;\n\n  /**\n   * The display options for the drawing control.\n   *\n   */\n  @Input() drawingControlOptions: google.maps.drawing.DrawingControlOptions;\n\n  /**\n   * Options to apply to any new circles created with this DrawingManager.\n   * The `center` and `radius` properties are ignored, and the `map` property of a\n   * new circle is always set to the DrawingManager's map.\n   *\n   */\n  @Input() circleOptions: google.maps.CircleOptions;\n\n  /**\n   * Options to apply to any new markers created with this DrawingManager.\n   * The `position` property is ignored, and the `map` property of a new marker\n   * is always set to the DrawingManager's map.\n   *\n   */\n  @Input() markerOptions: google.maps.MarkerOptions;\n\n  /**\n   * Options to apply to any new polygons created with this DrawingManager.\n   * The `paths` property is ignored, and the map property of a new polygon is\n   * always set to the DrawingManager's map.\n   *\n   */\n  @Input() polygonOptions: google.maps.PolygonOptions;\n\n  /**\n   * Options to apply to any new polylines created with this DrawingManager.\n   * The `path` property is ignored, and the map property of a new polyline is\n   * always set to the DrawingManager's map.\n   *\n   */\n  @Input() polylineOptions: google.maps.PolylineOptions;\n\n  /**\n   * Options to apply to any new rectangles created with this DrawingManager.\n   * The `bounds` property is ignored, and the map property of a new rectangle\n   * is always set to the DrawingManager's map.\n   *\n   */\n  @Input() rectangleOptions: google.maps.RectangleOptions;\n\n  /**\n   * This event is fired when the user has finished drawing a circle.\n   */\n  @Output() circleComplete = new EventEmitter<google.maps.Circle>();\n\n  /**\n   * This event is fired when the user has finished drawing a marker.\n   */\n  @Output() markerComplete = new EventEmitter<google.maps.Marker>();\n\n  /**\n   * This event is fired when the user has finished drawing an overlay of any\n   * type.\n   */\n  @Output() overlayComplete = new EventEmitter<google.maps.drawing.OverlayCompleteEvent>();\n\n  /**\n   * This event is fired when the user has finished drawing a polygon.\n   */\n  @Output() polygonComplete = new EventEmitter<google.maps.Polygon>();\n\n  /**\n   * This event is fired when the user has finished drawing a polyline.\n   */\n  @Output() polylineComplete = new EventEmitter<google.maps.Polyline>();\n\n  /**\n   * This event is fired when the user has finished drawing a rectangle.\n   */\n  @Output() rectangleComplete = new EventEmitter<google.maps.Rectangle>();\n\n  private eventSubscriptions: Subscription[] = [];\n\n  private drawingManager: google.maps.drawing.DrawingManager;\n\n  constructor(private _zone: NgZone) {\n  }\n\n  setMap(map: google.maps.Map) {\n    if (!google.maps.drawing && isDevMode()) {\n      console.error('Cannot use drawing manager if drawing library is not ' +\n        'loaded. To fix, add libraries: [\\'drawing\\'] to the ' +\n        'lazyMapsAPILoaderConfig you passed to AgmCoreModule.forRoot');\n      return;\n    }\n    if (map && !this.drawingManager) {\n      this.drawingManager = new google.maps.drawing.DrawingManager({\n          map,\n          circleOptions: this.circleOptions,\n          markerOptions: this.markerOptions,\n          polygonOptions: this.polygonOptions,\n          polylineOptions: this.polylineOptions,\n          rectangleOptions: this.rectangleOptions,\n          drawingControl: this.drawingControl,\n          drawingControlOptions: this.drawingControlOptions,\n          drawingMode: this.drawingMode,\n      });\n      this.initEvents(this.drawingManager);\n    } else if (!map && this.drawingManager) {\n      this.drawingManager.setMap(null);\n    }\n    // else do nothing\n  }\n\n  initEvents(drawingManager: google.maps.drawing.DrawingManager) {\n    this.eventSubscriptions.push(\n      this.createMvcObservable<google.maps.Circle>('circlecomplete', drawingManager)\n      .subscribe(circle => this._zone.run(() => this.circleComplete.next(circle)))\n    );\n    this.eventSubscriptions.push(\n      this.createMvcObservable<google.maps.Marker>('markercomplete', drawingManager)\n      .subscribe(marker => this._zone.run(() => this.markerComplete.next(marker)))\n    );\n    this.eventSubscriptions.push(\n      this.createMvcObservable<google.maps.Polygon>('polygoncomplete', drawingManager)\n      .subscribe(polygon => this._zone.run(() => this.polygonComplete.next(polygon)))\n    );\n    this.eventSubscriptions.push(\n      this.createMvcObservable<google.maps.Polyline>('polylinecomplete', drawingManager)\n      .subscribe(polyline => this._zone.run(() => this.polylineComplete.next(polyline)))\n    );\n    this.eventSubscriptions.push(\n      this.createMvcObservable<google.maps.drawing.OverlayCompleteEvent>('overlaycomplete', drawingManager)\n      .subscribe(overlayevent => this._zone.run(() => this.overlayComplete.next(overlayevent)))\n    );\n    this.eventSubscriptions.push(\n      this.createMvcObservable<google.maps.Rectangle>('rectanglecomplete', drawingManager)\n      .subscribe(rectangle => this._zone.run(() => this.rectangleComplete.next(rectangle)))\n    );\n  }\n\n  createMvcObservable<E>(eventName: string, mvcObject: google.maps.MVCObject): Observable<E> {\n    return fromEventPattern(\n      handler => mvcObject.addListener(eventName,\n        (event?: E) => handler.apply(null, [event])),\n      (_handler, evListener: google.maps.MapsEventListener) => evListener.remove()\n    );\n  }\n\n  ngOnChanges(changes: SimpleChanges): void {\n    if (!this.drawingManager) {\n      return;\n    }\n\n    const options = Object.entries(changes)\n    .map(([prop, change]) => [prop, change.currentValue])\n    .reduce((obj: any, [propName, propValue]) => {\n      obj[propName] = propValue;\n      return obj;\n    }, {});\n    this.drawingManager.setOptions(options);\n  }\n\n  ngOnDestroy(): void {\n    this.eventSubscriptions.forEach(subscription => subscription.unsubscribe());\n  }\n\n}\n"]}