@mobilelivenpm/fds-angular-qa
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JavaScript
import { ESCAPE, hasModifierKey } from '@angular/cdk/keycodes';
import { Subject } from 'rxjs';
import { filter, take } from 'rxjs/operators';
// Counter for unique dialog ids.
let uniqueId = 0;
/**
* Reference to a dialog opened via the MatDialog service.
*/
export class FdsModalRef {
constructor(_overlayRef, _containerInstance, id = `fds-modal-${uniqueId++}`) {
this._overlayRef = _overlayRef;
this._containerInstance = _containerInstance;
this.id = id;
/** Whether the user is allowed to close the dialog. */
this.disableClose = this._containerInstance._config
.disableClose;
/** Subject for notifying the user that the dialog has finished opening. */
this._afterOpened = new Subject();
/** Subject for notifying the user that the dialog has finished closing. */
this._afterClosed = new Subject();
/** Subject for notifying the user that the dialog has started closing. */
this._beforeClosed = new Subject();
/** Current state of the dialog. */
this._state = 0 /* OPEN */;
// Pass the id along to the container.
_containerInstance._id = id;
// Emit when opening animation completes
_containerInstance._animationStateChanged
.pipe(filter(event => event.state === 'opened'), take(1))
.subscribe(() => {
this._afterOpened.next();
this._afterOpened.complete();
});
// Dispose overlay when closing animation is complete
_containerInstance._animationStateChanged
.pipe(filter(event => event.state === 'closed'), take(1))
.subscribe(() => {
clearTimeout(this._closeFallbackTimeout);
this._finishDialogClose();
});
_overlayRef.detachments().subscribe(() => {
this._beforeClosed.next(this._result);
this._beforeClosed.complete();
this._afterClosed.next(this._result);
this._afterClosed.complete();
this.componentInstance = null;
this._overlayRef.dispose();
});
_overlayRef
.keydownEvents()
.pipe(filter(event => {
return (event.keyCode === ESCAPE &&
!this.disableClose &&
!hasModifierKey(event));
}))
.subscribe(event => {
event.preventDefault();
_closeDialogVia(this, 'keyboard');
});
_overlayRef.backdropClick().subscribe(() => {
if (this.disableClose) {
this._containerInstance._recaptureFocus();
}
else {
_closeDialogVia(this, 'mouse');
}
});
}
/**
* Close the dialog.
* @param dialogResult Optional result to return to the dialog opener.
*/
close(dialogResult) {
this._result = dialogResult;
// Transition the backdrop in parallel to the dialog.
this._containerInstance._animationStateChanged
.pipe(filter(event => event.state === 'closing'), take(1))
.subscribe(event => {
this._beforeClosed.next(dialogResult);
this._beforeClosed.complete();
this._overlayRef.detachBackdrop();
// The logic that disposes of the overlay depends on the exit animation completing, however
// it isn't guaranteed if the parent view is destroyed while it's running. Add a fallback
// timeout which will clean everything up if the animation hasn't fired within the specified
// amount of time plus 100ms. We don't need to run this outside the NgZone, because for the
// vast majority of cases the timeout will have been cleared before it has the chance to fire.
this._closeFallbackTimeout = setTimeout(() => this._finishDialogClose(), event.totalTime + 100);
});
this._state = 1 /* CLOSING */;
this._containerInstance._startExitAnimation();
}
/**
* Gets an observable that is notified when the dialog is finished opening.
*/
afterOpened() {
return this._afterOpened;
}
/**
* Gets an observable that is notified when the dialog is finished closing.
*/
afterClosed() {
return this._afterClosed;
}
/**
* Gets an observable that is notified when the dialog has started closing.
*/
beforeClosed() {
return this._beforeClosed;
}
/**
* Gets an observable that emits when the overlay's backdrop has been clicked.
*/
backdropClick() {
return this._overlayRef.backdropClick();
}
/**
* Gets an observable that emits when keydown events are targeted on the overlay.
*/
keydownEvents() {
return this._overlayRef.keydownEvents();
}
/**
* Updates the dialog's position.
* @param position New dialog position.
*/
updatePosition(position) {
let strategy = this._getPositionStrategy();
if (position && (position.left || position.right)) {
position.left
? strategy.left(position.left)
: strategy.right(position.right);
}
else {
strategy.centerHorizontally();
}
if (position && (position.top || position.bottom)) {
position.top
? strategy.top(position.top)
: strategy.bottom(position.bottom);
}
else {
strategy.centerVertically();
}
this._overlayRef.updatePosition();
return this;
}
/**
* Updates the dialog's width and height.
* @param width New width of the dialog.
* @param height New height of the dialog.
*/
updateSize(width = '', height = '') {
this._getPositionStrategy().width(width).height(height);
this._overlayRef.updatePosition();
return this;
}
/** Add a CSS class or an array of classes to the overlay pane. */
addPanelClass(classes) {
this._overlayRef.addPanelClass(classes);
return this;
}
/** Remove a CSS class or an array of classes from the overlay pane. */
removePanelClass(classes) {
this._overlayRef.removePanelClass(classes);
return this;
}
/** Gets the current state of the dialog's lifecycle. */
getState() {
return this._state;
}
/**
* Finishes the dialog close by updating the state of the dialog
* and disposing the overlay.
*/
_finishDialogClose() {
this._state = 2 /* CLOSED */;
this._overlayRef.dispose();
}
/** Fetches the position strategy object from the overlay ref. */
_getPositionStrategy() {
return this._overlayRef.getConfig()
.positionStrategy;
}
}
/**
* Closes the dialog with the specified interaction type. This is currently not part of
* `FdsModalRef` as that would conflict with custom dialog ref mocks provided in tests.
* More details. See: https://github.com/angular/components/pull/9257#issuecomment-651342226.
*/
export function _closeDialogVia(ref, interactionType, result) {
// Some mock dialog ref instances in tests do not have the `_containerInstance` property.
// For those, we keep the behavior as is and do not deal with the interaction type.
if (ref._containerInstance !== undefined) {
ref._containerInstance._closeInteractionType = interactionType;
}
return ref.close(result);
}
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{ FocusOrigin } from '@angular/cdk/a11y';\nimport { ESCAPE, hasModifierKey } from '@angular/cdk/keycodes';\nimport { GlobalPositionStrategy, OverlayRef } from '@angular/cdk/overlay';\nimport { Observable, Subject } from 'rxjs';\nimport { filter, take } from 'rxjs/operators';\nimport { ModalPosition } from './modal-config';\nimport { _FdsModalContainerBase } from './modal-container';\n\n// Counter for unique dialog ids.\nlet uniqueId = 0;\n\n/** Possible states of the lifecycle of a dialog. */\nexport const enum FdsModalState {\n  OPEN,\n  CLOSING,\n  CLOSED\n}\n\n/**\n * Reference to a dialog opened via the MatDialog service.\n */\nexport class FdsModalRef<T, R = any> {\n  /** The instance of component opened into the dialog. */\n  componentInstance: T;\n\n  /** Whether the user is allowed to close the dialog. */\n  disableClose: boolean | undefined = this._containerInstance._config\n    .disableClose;\n\n  /** Subject for notifying the user that the dialog has finished opening. */\n  private readonly _afterOpened = new Subject<void>();\n\n  /** Subject for notifying the user that the dialog has finished closing. */\n  private readonly _afterClosed = new Subject<R | undefined>();\n\n  /** Subject for notifying the user that the dialog has started closing. */\n  private readonly _beforeClosed = new Subject<R | undefined>();\n\n  /** Result to be passed to afterClosed. */\n  private _result: R | undefined;\n\n  /** Handle to the timeout that's running as a fallback in case the exit animation doesn't fire. */\n  private _closeFallbackTimeout: any;\n\n  /** Current state of the dialog. */\n  private _state = FdsModalState.OPEN;\n\n  constructor(\n    private _overlayRef: OverlayRef,\n    public _containerInstance: _FdsModalContainerBase,\n    readonly id: string = `fds-modal-${uniqueId++}`\n  ) {\n    // Pass the id along to the container.\n    _containerInstance._id = id;\n\n    // Emit when opening animation completes\n    _containerInstance._animationStateChanged\n      .pipe(\n        filter(event => event.state === 'opened'),\n        take(1)\n      )\n      .subscribe(() => {\n        this._afterOpened.next();\n        this._afterOpened.complete();\n      });\n\n    // Dispose overlay when closing animation is complete\n    _containerInstance._animationStateChanged\n      .pipe(\n        filter(event => event.state === 'closed'),\n        take(1)\n      )\n      .subscribe(() => {\n        clearTimeout(this._closeFallbackTimeout);\n        this._finishDialogClose();\n      });\n\n    _overlayRef.detachments().subscribe(() => {\n      this._beforeClosed.next(this._result);\n      this._beforeClosed.complete();\n      this._afterClosed.next(this._result);\n      this._afterClosed.complete();\n      this.componentInstance = null!;\n      this._overlayRef.dispose();\n    });\n\n    _overlayRef\n      .keydownEvents()\n      .pipe(\n        filter(event => {\n          return (\n            event.keyCode === ESCAPE &&\n            !this.disableClose &&\n            !hasModifierKey(event)\n          );\n        })\n      )\n      .subscribe(event => {\n        event.preventDefault();\n        _closeDialogVia(this, 'keyboard');\n      });\n\n    _overlayRef.backdropClick().subscribe(() => {\n      if (this.disableClose) {\n        this._containerInstance._recaptureFocus();\n      } else {\n        _closeDialogVia(this, 'mouse');\n      }\n    });\n  }\n\n  /**\n   * Close the dialog.\n   * @param dialogResult Optional result to return to the dialog opener.\n   */\n  close(dialogResult?: R): void {\n    this._result = dialogResult;\n\n    // Transition the backdrop in parallel to the dialog.\n    this._containerInstance._animationStateChanged\n      .pipe(\n        filter(event => event.state === 'closing'),\n        take(1)\n      )\n      .subscribe(event => {\n        this._beforeClosed.next(dialogResult);\n        this._beforeClosed.complete();\n        this._overlayRef.detachBackdrop();\n\n        // The logic that disposes of the overlay depends on the exit animation completing, however\n        // it isn't guaranteed if the parent view is destroyed while it's running. Add a fallback\n        // timeout which will clean everything up if the animation hasn't fired within the specified\n        // amount of time plus 100ms. We don't need to run this outside the NgZone, because for the\n        // vast majority of cases the timeout will have been cleared before it has the chance to fire.\n        this._closeFallbackTimeout = setTimeout(\n          () => this._finishDialogClose(),\n          event.totalTime + 100\n        );\n      });\n\n    this._state = FdsModalState.CLOSING;\n    this._containerInstance._startExitAnimation();\n  }\n\n  /**\n   * Gets an observable that is notified when the dialog is finished opening.\n   */\n  afterOpened(): Observable<void> {\n    return this._afterOpened;\n  }\n\n  /**\n   * Gets an observable that is notified when the dialog is finished closing.\n   */\n  afterClosed(): Observable<R | undefined> {\n    return this._afterClosed;\n  }\n\n  /**\n   * Gets an observable that is notified when the dialog has started closing.\n   */\n  beforeClosed(): Observable<R | undefined> {\n    return this._beforeClosed;\n  }\n\n  /**\n   * Gets an observable that emits when the overlay's backdrop has been clicked.\n   */\n  backdropClick(): Observable<MouseEvent> {\n    return this._overlayRef.backdropClick();\n  }\n\n  /**\n   * Gets an observable that emits when keydown events are targeted on the overlay.\n   */\n  keydownEvents(): Observable<KeyboardEvent> {\n    return this._overlayRef.keydownEvents();\n  }\n\n  /**\n   * Updates the dialog's position.\n   * @param position New dialog position.\n   */\n  updatePosition(position?: ModalPosition): this {\n    let strategy = this._getPositionStrategy();\n\n    if (position && (position.left || position.right)) {\n      position.left\n        ? strategy.left(position.left)\n        : strategy.right(position.right);\n    } else {\n      strategy.centerHorizontally();\n    }\n\n    if (position && (position.top || position.bottom)) {\n      position.top\n        ? strategy.top(position.top)\n        : strategy.bottom(position.bottom);\n    } else {\n      strategy.centerVertically();\n    }\n\n    this._overlayRef.updatePosition();\n\n    return this;\n  }\n\n  /**\n   * Updates the dialog's width and height.\n   * @param width New width of the dialog.\n   * @param height New height of the dialog.\n   */\n  updateSize(width: string = '', height: string = ''): this {\n    this._getPositionStrategy().width(width).height(height);\n    this._overlayRef.updatePosition();\n    return this;\n  }\n\n  /** Add a CSS class or an array of classes to the overlay pane. */\n  addPanelClass(classes: string | string[]): this {\n    this._overlayRef.addPanelClass(classes);\n    return this;\n  }\n\n  /** Remove a CSS class or an array of classes from the overlay pane. */\n  removePanelClass(classes: string | string[]): this {\n    this._overlayRef.removePanelClass(classes);\n    return this;\n  }\n\n  /** Gets the current state of the dialog's lifecycle. */\n  getState(): FdsModalState {\n    return this._state;\n  }\n\n  /**\n   * Finishes the dialog close by updating the state of the dialog\n   * and disposing the overlay.\n   */\n  private _finishDialogClose() {\n    this._state = FdsModalState.CLOSED;\n    this._overlayRef.dispose();\n  }\n\n  /** Fetches the position strategy object from the overlay ref. */\n  private _getPositionStrategy(): GlobalPositionStrategy {\n    return this._overlayRef.getConfig()\n      .positionStrategy as GlobalPositionStrategy;\n  }\n}\n\n/**\n * Closes the dialog with the specified interaction type. This is currently not part of\n * `FdsModalRef` as that would conflict with custom dialog ref mocks provided in tests.\n * More details. See: https://github.com/angular/components/pull/9257#issuecomment-651342226.\n */\nexport function _closeDialogVia<R>(\n  ref: FdsModalRef<R>,\n  interactionType: FocusOrigin,\n  result?: R\n) {\n  // Some mock dialog ref instances in tests do not have the `_containerInstance` property.\n  // For those, we keep the behavior as is and do not deal with the interaction type.\n  if (ref._containerInstance !== undefined) {\n    ref._containerInstance._closeInteractionType = interactionType;\n  }\n  return ref.close(result);\n}\n"]}