angular-resizable-element/fesm2022/angular-resizable-element.mjs.map

An angular 20.0+ directive that allows an element to be dragged and resized

{"version":3,"file":"angular-resizable-element.mjs","sources":["../../../projects/angular-resizable-element/src/lib/util/is-touch-device.ts","../../../projects/angular-resizable-element/src/lib/util/clone-node.ts","../../../projects/angular-resizable-element/src/lib/resizable.directive.ts","../../../projects/angular-resizable-element/src/lib/resize-handle.directive.ts","../../../projects/angular-resizable-element/src/lib/resizable.module.ts","../../../projects/angular-resizable-element/src/public-api.ts","../../../projects/angular-resizable-element/src/angular-resizable-element.ts"],"sourcesContent":["/**\n * @hidden\n */\nexport const IS_TOUCH_DEVICE: boolean = (() => {\n  // In case we're in Node.js environment.\n  if (typeof window === 'undefined') {\n    return false;\n  } else {\n    return (\n      'ontouchstart' in window ||\n      navigator.maxTouchPoints > 0 ||\n      (navigator as unknown as { msMaxTouchPoints: number }).msMaxTouchPoints >\n        0\n    );\n  }\n})();\n","/** Creates a deep clone of an element. */\nexport function deepCloneNode(node: HTMLElement): HTMLElement {\n  const clone = node.cloneNode(true) as HTMLElement;\n  const descendantsWithId = clone.querySelectorAll('[id]');\n  const nodeName = node.nodeName.toLowerCase();\n\n  // Remove the `id` to avoid having multiple elements with the same id on the page.\n  clone.removeAttribute('id');\n\n  descendantsWithId.forEach((descendant) => {\n    descendant.removeAttribute('id');\n  });\n\n  if (nodeName === 'canvas') {\n    transferCanvasData(node as HTMLCanvasElement, clone as HTMLCanvasElement);\n  } else if (\n    nodeName === 'input' ||\n    nodeName === 'select' ||\n    nodeName === 'textarea'\n  ) {\n    transferInputData(node as HTMLInputElement, clone as HTMLInputElement);\n  }\n\n  transferData('canvas', node, clone, transferCanvasData);\n  transferData('input, textarea, select', node, clone, transferInputData);\n  return clone;\n}\n\n/** Matches elements between an element and its clone and allows for their data to be cloned. */\nfunction transferData<T extends Element>(\n  selector: string,\n  node: HTMLElement,\n  clone: HTMLElement,\n  callback: (source: T, clone: T) => void,\n) {\n  const descendantElements = node.querySelectorAll<T>(selector);\n\n  if (descendantElements.length) {\n    const cloneElements = clone.querySelectorAll<T>(selector);\n\n    for (let i = 0; i < descendantElements.length; i++) {\n      callback(descendantElements[i], cloneElements[i]);\n    }\n  }\n}\n\n// Counter for unique cloned radio button names.\nlet cloneUniqueId = 0;\n\n/** Transfers the data of one input element to another. */\nfunction transferInputData(\n  source: Element & { value: string },\n  clone: Element & { value: string; name: string; type: string },\n) {\n  // Browsers throw an error when assigning the value of a file input programmatically.\n  if (clone.type !== 'file') {\n    clone.value = source.value;\n  }\n\n  // Radio button `name` attributes must be unique for radio button groups\n  // otherwise original radio buttons can lose their checked state\n  // once the clone is inserted in the DOM.\n  if (clone.type === 'radio' && clone.name) {\n    clone.name = `mat-clone-${clone.name}-${cloneUniqueId++}`;\n  }\n}\n\n/** Transfers the data of one canvas element to another. */\nfunction transferCanvasData(\n  source: HTMLCanvasElement,\n  clone: HTMLCanvasElement,\n) {\n  const context = clone.getContext('2d');\n\n  if (context) {\n    // In some cases `drawImage` can throw (e.g. if the canvas size is 0x0).\n    // We can't do much about it so just ignore the error.\n    try {\n      context.drawImage(source, 0, 0);\n    } catch {}\n  }\n}\n","import {\n  Directive,\n  Renderer2,\n  ElementRef,\n  OnInit,\n  Output,\n  Input,\n  EventEmitter,\n  OnDestroy,\n  NgZone,\n  PLATFORM_ID,\n  inject,\n} from '@angular/core';\nimport { isPlatformBrowser } from '@angular/common';\nimport { Subject, Observable, Observer, merge } from 'rxjs';\nimport {\n  map,\n  mergeMap,\n  takeUntil,\n  filter,\n  pairwise,\n  take,\n  share,\n  tap,\n} from 'rxjs/operators';\nimport { Edges } from './interfaces/edges.interface';\nimport { BoundingRectangle } from './interfaces/bounding-rectangle.interface';\nimport { ResizeEvent } from './interfaces/resize-event.interface';\nimport { IS_TOUCH_DEVICE } from './util/is-touch-device';\nimport { deepCloneNode } from './util/clone-node';\n\ninterface PointerEventCoordinate {\n  clientX: number;\n  clientY: number;\n  event: MouseEvent | TouchEvent;\n}\n\ninterface Coordinate {\n  x: number;\n  y: number;\n}\n\nfunction getNewBoundingRectangle(\n  startingRect: BoundingRectangle,\n  edges: Edges,\n  clientX: number,\n  clientY: number,\n): BoundingRectangle {\n  const newBoundingRect: BoundingRectangle = {\n    top: startingRect.top,\n    bottom: startingRect.bottom,\n    left: startingRect.left,\n    right: startingRect.right,\n  };\n\n  if (edges.top) {\n    newBoundingRect.top += clientY;\n  }\n  if (edges.bottom) {\n    newBoundingRect.bottom += clientY;\n  }\n  if (edges.left) {\n    newBoundingRect.left += clientX;\n  }\n  if (edges.right) {\n    newBoundingRect.right += clientX;\n  }\n  newBoundingRect.height = newBoundingRect.bottom - newBoundingRect.top;\n  newBoundingRect.width = newBoundingRect.right - newBoundingRect.left;\n\n  return newBoundingRect;\n}\n\nfunction getElementRect(\n  element: ElementRef,\n  ghostElementPositioning: string,\n): BoundingRectangle {\n  let translateX = 0;\n  let translateY = 0;\n  const style = element.nativeElement.style;\n  const transformProperties = [\n    'transform',\n    '-ms-transform',\n    '-moz-transform',\n    '-o-transform',\n  ];\n  const transform = transformProperties\n    .map((property) => style[property])\n    .find((value) => !!value);\n  if (transform && transform.includes('translate')) {\n    translateX = transform.replace(\n      /.*translate3?d?\\((-?[0-9]*)px, (-?[0-9]*)px.*/,\n      '$1',\n    );\n    translateY = transform.replace(\n      /.*translate3?d?\\((-?[0-9]*)px, (-?[0-9]*)px.*/,\n      '$2',\n    );\n  }\n\n  if (ghostElementPositioning === 'absolute') {\n    return {\n      height: element.nativeElement.offsetHeight,\n      width: element.nativeElement.offsetWidth,\n      top: element.nativeElement.offsetTop - translateY,\n      bottom:\n        element.nativeElement.offsetHeight +\n        element.nativeElement.offsetTop -\n        translateY,\n      left: element.nativeElement.offsetLeft - translateX,\n      right:\n        element.nativeElement.offsetWidth +\n        element.nativeElement.offsetLeft -\n        translateX,\n    };\n  } else {\n    const boundingRect: BoundingRectangle =\n      element.nativeElement.getBoundingClientRect();\n    return {\n      height: boundingRect.height,\n      width: boundingRect.width,\n      top: boundingRect.top - translateY,\n      bottom: boundingRect.bottom - translateY,\n      left: boundingRect.left - translateX,\n      right: boundingRect.right - translateX,\n      scrollTop: element.nativeElement.scrollTop,\n      scrollLeft: element.nativeElement.scrollLeft,\n    };\n  }\n}\n\nexport interface ResizeCursors {\n  topLeft: string;\n  topRight: string;\n  bottomLeft: string;\n  bottomRight: string;\n  leftOrRight: string;\n  topOrBottom: string;\n}\n\nconst DEFAULT_RESIZE_CURSORS: ResizeCursors = Object.freeze({\n  topLeft: 'nw-resize',\n  topRight: 'ne-resize',\n  bottomLeft: 'sw-resize',\n  bottomRight: 'se-resize',\n  leftOrRight: 'col-resize',\n  topOrBottom: 'row-resize',\n});\n\nfunction getResizeCursor(edges: Edges, cursors: ResizeCursors): string {\n  if (edges.left && edges.top) {\n    return cursors.topLeft;\n  } else if (edges.right && edges.top) {\n    return cursors.topRight;\n  } else if (edges.left && edges.bottom) {\n    return cursors.bottomLeft;\n  } else if (edges.right && edges.bottom) {\n    return cursors.bottomRight;\n  } else if (edges.left || edges.right) {\n    return cursors.leftOrRight;\n  } else if (edges.top || edges.bottom) {\n    return cursors.topOrBottom;\n  } else {\n    return '';\n  }\n}\n\nfunction getEdgesDiff({\n  edges,\n  initialRectangle,\n  newRectangle,\n}: {\n  edges: Edges;\n  initialRectangle: BoundingRectangle;\n  newRectangle: BoundingRectangle;\n}): Edges {\n  const edgesDiff: Edges = {};\n  Object.keys(edges).forEach((edge) => {\n    edgesDiff[edge] = (newRectangle[edge] || 0) - (initialRectangle[edge] || 0);\n  });\n  return edgesDiff;\n}\n\nconst RESIZE_ACTIVE_CLASS: string = 'resize-active';\nconst RESIZE_GHOST_ELEMENT_CLASS: string = 'resize-ghost-element';\n\nexport const MOUSE_MOVE_THROTTLE_MS: number = 50;\n\n/**\n * Place this on an element to make it resizable. For example:\n *\n * ```html\n * <div\n *   mwlResizable\n *   [resizeEdges]=\"{bottom: true, right: true, top: true, left: true}\"\n *   [enableGhostResize]=\"true\">\n * </div>\n * ```\n * Or in case they are sibling elements:\n * ```html\n * <div mwlResizable #resizableElement=\"mwlResizable\"></div>\n * <div mwlResizeHandle [resizableContainer]=\"resizableElement\" [resizeEdges]=\"{bottom: true, right: true}\"></div>\n * ```\n */\n@Directive({\n  selector: '[mwlResizable]',\n  exportAs: 'mwlResizable',\n})\nexport class ResizableDirective implements OnInit, OnDestroy {\n  /**\n   * A function that will be called before each resize event. Return `true` to allow the resize event to propagate or `false` to cancel it\n   */\n  @Input() validateResize: (resizeEvent: ResizeEvent) => boolean;\n\n  /**\n   * Set to `true` to enable a temporary resizing effect of the element in between the `resizeStart` and `resizeEnd` events.\n   */\n  @Input() enableGhostResize: boolean = false;\n\n  /**\n   * A snap grid that resize events will be locked to.\n   *\n   * e.g. to only allow the element to be resized every 10px set it to `{left: 10, right: 10}`\n   */\n  @Input() resizeSnapGrid: Edges = {};\n\n  /**\n   * The mouse cursors that will be set on the resize edges\n   */\n  @Input() resizeCursors: Partial<ResizeCursors> = DEFAULT_RESIZE_CURSORS;\n\n  /**\n   * Define the positioning of the ghost element (can be fixed or absolute)\n   */\n  @Input() ghostElementPositioning: 'fixed' | 'absolute' = 'fixed';\n\n  /**\n   * Allow elements to be resized to negative dimensions\n   */\n  @Input() allowNegativeResizes: boolean = false;\n\n  /**\n   * The mouse move throttle in milliseconds, default: 50 ms\n   */\n  @Input() mouseMoveThrottleMS: number = MOUSE_MOVE_THROTTLE_MS;\n\n  /**\n   * Called when the mouse is pressed and a resize event is about to begin. `$event` is a `ResizeEvent` object.\n   */\n  @Output() resizeStart = new EventEmitter<ResizeEvent>();\n\n  /**\n   * Called as the mouse is dragged after a resize event has begun. `$event` is a `ResizeEvent` object.\n   */\n  @Output() resizing = new EventEmitter<ResizeEvent>();\n\n  /**\n   * Called after the mouse is released after a resize event. `$event` is a `ResizeEvent` object.\n   */\n  @Output() resizeEnd = new EventEmitter<ResizeEvent>();\n\n  /**\n   * @hidden\n   */\n  public mouseup = new Subject<{\n    clientX: number;\n    clientY: number;\n    edges?: Edges;\n  }>();\n\n  /**\n   * @hidden\n   */\n  public mousedown = new Subject<{\n    clientX: number;\n    clientY: number;\n    edges?: Edges;\n  }>();\n\n  /**\n   * @hidden\n   */\n  public mousemove = new Subject<{\n    clientX: number;\n    clientY: number;\n    edges?: Edges;\n    event: MouseEvent | TouchEvent;\n  }>();\n\n  private pointerEventListeners: PointerEventListeners;\n\n  private destroy$ = new Subject<void>();\n\n  private platformId = inject(PLATFORM_ID);\n\n  private renderer = inject(Renderer2);\n\n  private elm = inject(ElementRef);\n\n  private zone = inject(NgZone);\n\n  /**\n   * @hidden\n   */\n  constructor() {\n    this.pointerEventListeners = PointerEventListeners.getInstance(\n      this.renderer,\n      this.zone,\n    );\n  }\n\n  /**\n   * @hidden\n   */\n  ngOnInit(): void {\n    const mousedown$: Observable<{\n      clientX: number;\n      clientY: number;\n      edges?: Edges;\n    }> = merge(this.pointerEventListeners.pointerDown, this.mousedown);\n\n    const mousemove$ = merge(\n      this.pointerEventListeners.pointerMove,\n      this.mousemove,\n    ).pipe(\n      tap(({ event }) => {\n        if (currentResize && event.cancelable) {\n          event.preventDefault();\n        }\n      }),\n      share(),\n    );\n\n    const mouseup$ = merge(this.pointerEventListeners.pointerUp, this.mouseup);\n\n    let currentResize: {\n      edges: Edges;\n      startingRect: BoundingRectangle;\n      currentRect: BoundingRectangle;\n      clonedNode?: HTMLElement;\n    } | null;\n\n    const removeGhostElement = () => {\n      if (currentResize && currentResize.clonedNode) {\n        this.elm.nativeElement.parentElement.removeChild(\n          currentResize.clonedNode,\n        );\n        this.renderer.setStyle(this.elm.nativeElement, 'visibility', 'inherit');\n      }\n    };\n\n    const getResizeCursors = (): ResizeCursors => {\n      return {\n        ...DEFAULT_RESIZE_CURSORS,\n        ...this.resizeCursors,\n      };\n    };\n\n    const mousedrag: Observable<any> = mousedown$\n      .pipe(\n        mergeMap((startCoords) => {\n          function getDiff(moveCoords: { clientX: number; clientY: number }) {\n            return {\n              clientX: moveCoords.clientX - startCoords.clientX,\n              clientY: moveCoords.clientY - startCoords.clientY,\n            };\n          }\n\n          const getSnapGrid = () => {\n            const snapGrid: Coordinate = { x: 1, y: 1 };\n\n            if (currentResize) {\n              if (this.resizeSnapGrid.left && currentResize.edges.left) {\n                snapGrid.x = +this.resizeSnapGrid.left;\n              } else if (\n                this.resizeSnapGrid.right &&\n                currentResize.edges.right\n              ) {\n                snapGrid.x = +this.resizeSnapGrid.right;\n              }\n\n              if (this.resizeSnapGrid.top && currentResize.edges.top) {\n                snapGrid.y = +this.resizeSnapGrid.top;\n              } else if (\n                this.resizeSnapGrid.bottom &&\n                currentResize.edges.bottom\n              ) {\n                snapGrid.y = +this.resizeSnapGrid.bottom;\n              }\n            }\n\n            return snapGrid;\n          };\n\n          function getGrid(\n            coords: { clientX: number; clientY: number },\n            snapGrid: Coordinate,\n          ) {\n            return {\n              x: Math.ceil(coords.clientX / snapGrid.x),\n              y: Math.ceil(coords.clientY / snapGrid.y),\n            };\n          }\n\n          return (\n            merge(\n              mousemove$.pipe(take(1)).pipe(map((coords) => [, coords])),\n              mousemove$.pipe(pairwise()),\n            ) as Observable<\n              [\n                { clientX: number; clientY: number },\n                { clientX: number; clientY: number },\n              ]\n            >\n          )\n            .pipe(\n              map(([previousCoords, newCoords]) => {\n                return [\n                  previousCoords ? getDiff(previousCoords) : previousCoords,\n                  getDiff(newCoords),\n                ];\n              }),\n            )\n            .pipe(\n              filter(([previousCoords, newCoords]) => {\n                if (!previousCoords) {\n                  return true;\n                }\n\n                const snapGrid: Coordinate = getSnapGrid();\n                const previousGrid: Coordinate = getGrid(\n                  previousCoords,\n                  snapGrid,\n                );\n                const newGrid: Coordinate = getGrid(newCoords, snapGrid);\n\n                return (\n                  previousGrid.x !== newGrid.x || previousGrid.y !== newGrid.y\n                );\n              }),\n            )\n            .pipe(\n              map(([, newCoords]) => {\n                const snapGrid: Coordinate = getSnapGrid();\n                return {\n                  clientX:\n                    Math.round(newCoords.clientX / snapGrid.x) * snapGrid.x,\n                  clientY:\n                    Math.round(newCoords.clientY / snapGrid.y) * snapGrid.y,\n                };\n              }),\n            )\n            .pipe(takeUntil(merge(mouseup$, mousedown$)));\n        }),\n      )\n      .pipe(filter(() => !!currentResize));\n\n    mousedrag\n      .pipe(\n        map(({ clientX, clientY }) => {\n          return getNewBoundingRectangle(\n            currentResize!.startingRect,\n            currentResize!.edges,\n            clientX,\n            clientY,\n          );\n        }),\n      )\n      .pipe(\n        filter((newBoundingRect: BoundingRectangle) => {\n          return (\n            this.allowNegativeResizes ||\n            !!(\n              newBoundingRect.height &&\n              newBoundingRect.width &&\n              newBoundingRect.height > 0 &&\n              newBoundingRect.width > 0\n            )\n          );\n        }),\n      )\n      .pipe(\n        filter((newBoundingRect: BoundingRectangle) => {\n          return this.validateResize\n            ? this.validateResize({\n                rectangle: newBoundingRect,\n                edges: getEdgesDiff({\n                  edges: currentResize!.edges,\n                  initialRectangle: currentResize!.startingRect,\n                  newRectangle: newBoundingRect,\n                }),\n              })\n            : true;\n        }),\n        takeUntil(this.destroy$),\n      )\n      .subscribe((newBoundingRect: BoundingRectangle) => {\n        if (currentResize && currentResize.clonedNode) {\n          this.renderer.setStyle(\n            currentResize.clonedNode,\n            'height',\n            `${newBoundingRect.height}px`,\n          );\n          this.renderer.setStyle(\n            currentResize.clonedNode,\n            'width',\n            `${newBoundingRect.width}px`,\n          );\n          this.renderer.setStyle(\n            currentResize.clonedNode,\n            'top',\n            `${newBoundingRect.top}px`,\n          );\n          this.renderer.setStyle(\n            currentResize.clonedNode,\n            'left',\n            `${newBoundingRect.left}px`,\n          );\n        }\n\n        if (this.resizing.observers.length > 0) {\n          this.zone.run(() => {\n            this.resizing.emit({\n              edges: getEdgesDiff({\n                edges: currentResize!.edges,\n                initialRectangle: currentResize!.startingRect,\n                newRectangle: newBoundingRect,\n              }),\n              rectangle: newBoundingRect,\n            });\n          });\n        }\n        currentResize!.currentRect = newBoundingRect;\n      });\n\n    mousedown$\n      .pipe(\n        map(({ edges }) => {\n          return edges || {};\n        }),\n        filter((edges: Edges) => {\n          return Object.keys(edges).length > 0;\n        }),\n        takeUntil(this.destroy$),\n      )\n      .subscribe((edges: Edges) => {\n        if (currentResize) {\n          removeGhostElement();\n        }\n        const startingRect: BoundingRectangle = getElementRect(\n          this.elm,\n          this.ghostElementPositioning,\n        );\n        currentResize = {\n          edges,\n          startingRect,\n          currentRect: startingRect,\n        };\n        const resizeCursors = getResizeCursors();\n        const cursor = getResizeCursor(currentResize.edges, resizeCursors);\n        this.renderer.setStyle(document.body, 'cursor', cursor);\n        this.setElementClass(this.elm, RESIZE_ACTIVE_CLASS, true);\n        if (this.enableGhostResize) {\n          currentResize.clonedNode = deepCloneNode(this.elm.nativeElement);\n          this.elm.nativeElement.parentElement.appendChild(\n            currentResize.clonedNode,\n          );\n          this.renderer.setStyle(\n            this.elm.nativeElement,\n            'visibility',\n            'hidden',\n          );\n          this.renderer.setStyle(\n            currentResize.clonedNode,\n            'position',\n            this.ghostElementPositioning,\n          );\n          this.renderer.setStyle(\n            currentResize.clonedNode,\n            'left',\n            `${currentResize.startingRect.left}px`,\n          );\n          this.renderer.setStyle(\n            currentResize.clonedNode,\n            'top',\n            `${currentResize.startingRect.top}px`,\n          );\n          this.renderer.setStyle(\n            currentResize.clonedNode,\n            'height',\n            `${currentResize.startingRect.height}px`,\n          );\n          this.renderer.setStyle(\n            currentResize.clonedNode,\n            'width',\n            `${currentResize.startingRect.width}px`,\n          );\n          this.renderer.setStyle(\n            currentResize.clonedNode,\n            'cursor',\n            getResizeCursor(currentResize.edges, resizeCursors),\n          );\n          this.renderer.addClass(\n            currentResize.clonedNode,\n            RESIZE_GHOST_ELEMENT_CLASS,\n          );\n          currentResize.clonedNode!.scrollTop = currentResize.startingRect\n            .scrollTop as number;\n          currentResize.clonedNode!.scrollLeft = currentResize.startingRect\n            .scrollLeft as number;\n        }\n        if (this.resizeStart.observers.length > 0) {\n          this.zone.run(() => {\n            this.resizeStart.emit({\n              edges: getEdgesDiff({\n                edges,\n                initialRectangle: startingRect,\n                newRectangle: startingRect,\n              }),\n              rectangle: getNewBoundingRectangle(startingRect, {}, 0, 0),\n            });\n          });\n        }\n      });\n\n    mouseup$.pipe(takeUntil(this.destroy$)).subscribe(() => {\n      if (currentResize) {\n        this.renderer.removeClass(this.elm.nativeElement, RESIZE_ACTIVE_CLASS);\n        this.renderer.setStyle(document.body, 'cursor', '');\n        this.renderer.setStyle(this.elm.nativeElement, 'cursor', '');\n        if (this.resizeEnd.observers.length > 0) {\n          this.zone.run(() => {\n            this.resizeEnd.emit({\n              edges: getEdgesDiff({\n                edges: currentResize!.edges,\n                initialRectangle: currentResize!.startingRect,\n                newRectangle: currentResize!.currentRect,\n              }),\n              rectangle: currentResize!.currentRect,\n            });\n          });\n        }\n        removeGhostElement();\n        currentResize = null;\n      }\n    });\n  }\n\n  /**\n   * @hidden\n   */\n  ngOnDestroy(): void {\n    // browser check for angular universal, because it doesn't know what document is\n    if (isPlatformBrowser(this.platformId)) {\n      this.renderer.setStyle(document.body, 'cursor', '');\n    }\n    this.mousedown.complete();\n    this.mouseup.complete();\n    this.mousemove.complete();\n    this.destroy$.next();\n  }\n\n  private setElementClass(elm: ElementRef, name: string, add: boolean): void {\n    if (add) {\n      this.renderer.addClass(elm.nativeElement, name);\n    } else {\n      this.renderer.removeClass(elm.nativeElement, name);\n    }\n  }\n}\n\nclass PointerEventListeners {\n  public pointerDown: Observable<PointerEventCoordinate>;\n\n  public pointerMove: Observable<PointerEventCoordinate>;\n\n  public pointerUp: Observable<PointerEventCoordinate>;\n\n  private static instance: PointerEventListeners;\n\n  public static getInstance(\n    renderer: Renderer2,\n    zone: NgZone,\n  ): PointerEventListeners {\n    if (!PointerEventListeners.instance) {\n      PointerEventListeners.instance = new PointerEventListeners(\n        renderer,\n        zone,\n      );\n    }\n    return PointerEventListeners.instance;\n  }\n\n  constructor(renderer: Renderer2, zone: NgZone) {\n    this.pointerDown = new Observable(\n      (observer: Observer<PointerEventCoordinate>) => {\n        let unsubscribeMouseDown: () => void;\n        let unsubscribeTouchStart: (() => void) | undefined;\n\n        zone.runOutsideAngular(() => {\n          unsubscribeMouseDown = renderer.listen(\n            'document',\n            'mousedown',\n            (event: MouseEvent) => {\n              observer.next({\n                clientX: event.clientX,\n                clientY: event.clientY,\n                event,\n              });\n            },\n          );\n\n          if (IS_TOUCH_DEVICE) {\n            unsubscribeTouchStart = renderer.listen(\n              'document',\n              'touchstart',\n              (event: TouchEvent) => {\n                observer.next({\n                  clientX: event.touches[0].clientX,\n                  clientY: event.touches[0].clientY,\n                  event,\n                });\n              },\n            );\n          }\n        });\n\n        return () => {\n          unsubscribeMouseDown();\n          if (IS_TOUCH_DEVICE) {\n            unsubscribeTouchStart!();\n          }\n        };\n      },\n    ).pipe(share());\n\n    this.pointerMove = new Observable(\n      (observer: Observer<PointerEventCoordinate>) => {\n        let unsubscribeMouseMove: () => void;\n        let unsubscribeTouchMove: (() => void) | undefined;\n\n        zone.runOutsideAngular(() => {\n          unsubscribeMouseMove = renderer.listen(\n            'document',\n            'mousemove',\n            (event: MouseEvent) => {\n              observer.next({\n                clientX: event.clientX,\n                clientY: event.clientY,\n                event,\n              });\n            },\n          );\n\n          if (IS_TOUCH_DEVICE) {\n            unsubscribeTouchMove = renderer.listen(\n              'document',\n              'touchmove',\n              (event: TouchEvent) => {\n                observer.next({\n                  clientX: event.targetTouches[0].clientX,\n                  clientY: event.targetTouches[0].clientY,\n                  event,\n                });\n              },\n            );\n          }\n        });\n\n        return () => {\n          unsubscribeMouseMove();\n          if (IS_TOUCH_DEVICE) {\n            unsubscribeTouchMove!();\n          }\n        };\n      },\n    ).pipe(share());\n\n    this.pointerUp = new Observable(\n      (observer: Observer<PointerEventCoordinate>) => {\n        let unsubscribeMouseUp: () => void;\n        let unsubscribeTouchEnd: (() => void) | undefined;\n        let unsubscribeTouchCancel: (() => void) | undefined;\n\n        zone.runOutsideAngular(() => {\n          unsubscribeMouseUp = renderer.listen(\n            'document',\n            'mouseup',\n            (event: MouseEvent) => {\n              observer.next({\n                clientX: event.clientX,\n                clientY: event.clientY,\n                event,\n              });\n            },\n          );\n\n          if (IS_TOUCH_DEVICE) {\n            unsubscribeTouchEnd = renderer.listen(\n              'document',\n              'touchend',\n              (event: TouchEvent) => {\n                observer.next({\n   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inject(NgZone);\n  private resizableDirective = inject(ResizableDirective, { optional: true });\n\n  /**\n   * The `Edges` object that contains the edges of the parent element that dragging the handle will trigger a resize on\n   */\n  @Input() resizeEdges: Edges = {};\n  /**\n   * Reference to ResizableDirective in case if handle is not located inside of element with ResizableDirective\n   */\n  @Input() resizableContainer: ResizableDirective;\n\n  private eventListeners: {\n    touchmove?: () => void;\n    mousemove?: () => void;\n    [key: string]: (() => void) | undefined;\n  } = {};\n\n  private destroy$ = new Subject<void>();\n\n  ngOnInit(): void {\n    this.zone.runOutsideAngular(() => {\n      this.listenOnTheHost<MouseEvent>('mousedown').subscribe((event) => {\n        this.onMousedown(event, event.clientX, event.clientY);\n      });\n\n      this.listenOnTheHost<MouseEvent>('mouseup').subscribe((event) => {\n        this.onMouseup(event.clientX, event.clientY);\n      });\n\n      if (IS_TOUCH_DEVICE) {\n        this.listenOnTheHost<TouchEvent>('touchstart').subscribe((event) => {\n          this.onMousedown(\n            event,\n            event.touches[0].clientX,\n            event.touches[0].clientY,\n          );\n        });\n\n        merge(\n          this.listenOnTheHost<TouchEvent>('touchend'),\n          this.listenOnTheHost<TouchEvent>('touchcancel'),\n        ).subscribe((event) => {\n          this.onMouseup(\n            event.changedTouches[0].clientX,\n            event.changedTouches[0].clientY,\n          );\n        });\n      }\n    });\n  }\n\n  ngOnDestroy(): void {\n    this.destroy$.next();\n    this.unsubscribeEventListeners();\n  }\n\n  /**\n   * @hidden\n   */\n  onMousedown(\n    event: MouseEvent | TouchEvent,\n    clientX: number,\n    clientY: number,\n  ): void {\n    if (event.cancelable) {\n      event.preventDefault();\n    }\n    if (!this.eventListeners.touchmove) {\n      this.eventListeners.touchmove = this.renderer.listen(\n        this.element.nativeElement,\n        'touchmove',\n        (touchMoveEvent: TouchEvent) => {\n          this.onMousemove(\n            touchMoveEvent,\n            touchMoveEvent.targetTouches[0].clientX,\n            touchMoveEvent.targetTouches[0].clientY,\n          );\n        },\n      );\n    }\n    if (!this.eventListeners.mousemove) {\n      this.eventListeners.mousemove = this.renderer.listen(\n        this.element.nativeElement,\n        'mousemove',\n        (mouseMoveEvent: MouseEvent) => {\n          this.onMousemove(\n            mouseMoveEvent,\n            mouseMoveEvent.clientX,\n            mouseMoveEvent.clientY,\n          );\n        },\n      );\n    }\n    this.resizable.mousedown.next({\n      clientX,\n      clientY,\n      edges: this.resizeEdges,\n    });\n  }\n\n  /**\n   * @hidden\n   */\n  onMouseup(clientX: number, clientY: number): void {\n    this.unsubscribeEventListeners();\n    this.resizable.mouseup.next({\n      clientX,\n      clientY,\n      edges: this.resizeEdges,\n    });\n  }\n\n  // directive might be passed from DI or as an input\n  private get resizable(): ResizableDirective {\n    return this.resizableDirective || this.resizableContainer;\n  }\n\n  private onMousemove(\n    event: MouseEvent | TouchEvent,\n    clientX: number,\n    clientY: number,\n  ): void {\n    this.resizable.mousemove.next({\n      clientX,\n      clientY,\n      edges: this.resizeEdges,\n      event,\n    });\n  }\n\n  private unsubscribeEventListeners(): void {\n    Object.keys(this.eventListeners).forEach((type) => {\n      (this as any).eventListeners[type]();\n      delete this.eventListeners[type];\n    });\n  }\n\n  private listenOnTheHost<T extends Event>(eventName: string) {\n    return fromEvent<T>(this.element.nativeElement, eventName).pipe(\n      takeUntil(this.destroy$),\n    );\n  }\n}\n","import { NgModule } from '@angular/core';\nimport { ResizableDirective } from 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