ngx-bootstrap
Version:
Native Angular Bootstrap Components
548 lines • 44.1 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/* tslint:disable:max-file-line-count */
// todo: should we support enforce focus in?
// todo: in original bs there are was a way to prevent modal from showing
// todo: original modal had resize events
import { Directive, ElementRef, EventEmitter, HostListener, Input, Output, Renderer2, ViewContainerRef } from '@angular/core';
import { document, window, isBs3, Utils } from 'ngx-bootstrap/utils';
import { ModalBackdropComponent } from './modal-backdrop.component';
import { CLASS_NAME, DISMISS_REASONS, modalConfigDefaults, ModalOptions } from './modal-options.class';
import { ComponentLoaderFactory } from 'ngx-bootstrap/component-loader';
/** @type {?} */
const TRANSITION_DURATION = 300;
/** @type {?} */
const BACKDROP_TRANSITION_DURATION = 150;
/**
* Mark any code with directive to show it's content in modal
*/
export class ModalDirective {
/**
* @param {?} _element
* @param {?} _viewContainerRef
* @param {?} _renderer
* @param {?} clf
*/
constructor(_element, _viewContainerRef, _renderer, clf) {
this._element = _element;
this._renderer = _renderer;
/**
* This event fires immediately when the `show` instance method is called.
*/
this.onShow = new EventEmitter();
/**
* This event is fired when the modal has been made visible to the user
* (will wait for CSS transitions to complete)
*/
this.onShown = new EventEmitter();
/**
* This event is fired immediately when
* the hide instance method has been called.
*/
this.onHide = new EventEmitter();
/**
* This event is fired when the modal has finished being
* hidden from the user (will wait for CSS transitions to complete).
*/
this.onHidden = new EventEmitter();
this._isShown = false;
this.isBodyOverflowing = false;
this.originalBodyPadding = 0;
this.scrollbarWidth = 0;
this.timerHideModal = 0;
this.timerRmBackDrop = 0;
this.isNested = false;
this._backdrop = clf.createLoader(_element, _viewContainerRef, _renderer);
}
/**
* allows to set modal configuration via element property
* @param {?} conf
* @return {?}
*/
set config(conf) {
this._config = this.getConfig(conf);
}
/**
* @return {?}
*/
get config() {
return this._config;
}
/**
* @return {?}
*/
get isShown() {
return this._isShown;
}
/**
* @param {?} event
* @return {?}
*/
onClick(event) {
if (this.config.ignoreBackdropClick ||
this.config.backdrop === 'static' ||
event.target !== this._element.nativeElement) {
return;
}
this.dismissReason = DISMISS_REASONS.BACKRDOP;
this.hide(event);
}
// todo: consider preventing default and stopping propagation
/**
* @param {?} event
* @return {?}
*/
onEsc(event) {
if (!this._isShown) {
return;
}
// tslint:disable-next-line:deprecation
if (event.keyCode === 27 || event.key === 'Escape') {
event.preventDefault();
}
if (this.config.keyboard) {
this.dismissReason = DISMISS_REASONS.ESC;
this.hide();
}
}
/**
* @return {?}
*/
ngOnDestroy() {
this.config = void 0;
if (this._isShown) {
this._isShown = false;
this.hideModal();
this._backdrop.dispose();
}
}
/**
* @return {?}
*/
ngOnInit() {
this._config = this._config || this.getConfig();
setTimeout((/**
* @return {?}
*/
() => {
if (this._config.show) {
this.show();
}
}), 0);
}
/* Public methods */
/**
* Allows to manually toggle modal visibility
* @return {?}
*/
toggle() {
return this._isShown ? this.hide() : this.show();
}
/**
* Allows to manually open modal
* @return {?}
*/
show() {
this.dismissReason = null;
this.onShow.emit(this);
if (this._isShown) {
return;
}
clearTimeout(this.timerHideModal);
clearTimeout(this.timerRmBackDrop);
this._isShown = true;
this.checkScrollbar();
this.setScrollbar();
if (document && document.body) {
if (document.body.classList.contains(CLASS_NAME.OPEN)) {
this.isNested = true;
}
else {
this._renderer.addClass(document.body, CLASS_NAME.OPEN);
}
}
this.showBackdrop((/**
* @return {?}
*/
() => {
this.showElement();
}));
}
/**
* Allows to manually close modal
* @param {?=} event
* @return {?}
*/
hide(event) {
if (event) {
event.preventDefault();
}
this.onHide.emit(this);
// todo: add an option to prevent hiding
if (!this._isShown) {
return;
}
window.clearTimeout(this.timerHideModal);
window.clearTimeout(this.timerRmBackDrop);
this._isShown = false;
this._renderer.removeClass(this._element.nativeElement, CLASS_NAME.IN);
if (!isBs3()) {
this._renderer.removeClass(this._element.nativeElement, CLASS_NAME.SHOW);
}
// this._addClassIn = false;
if (this._config.animated) {
this.timerHideModal = window.setTimeout((/**
* @return {?}
*/
() => this.hideModal()), TRANSITION_DURATION);
}
else {
this.hideModal();
}
}
/**
* Private methods \@internal
* @protected
* @param {?=} config
* @return {?}
*/
getConfig(config) {
return Object.assign({}, modalConfigDefaults, config);
}
/**
* Show dialog
* \@internal
* @protected
* @return {?}
*/
showElement() {
// todo: replace this with component loader usage
if (!this._element.nativeElement.parentNode ||
this._element.nativeElement.parentNode.nodeType !== Node.ELEMENT_NODE) {
// don't move modals dom position
if (document && document.body) {
document.body.appendChild(this._element.nativeElement);
}
}
this._renderer.setAttribute(this._element.nativeElement, 'aria-hidden', 'false');
this._renderer.setAttribute(this._element.nativeElement, 'aria-modal', 'true');
this._renderer.setStyle(this._element.nativeElement, 'display', 'block');
this._renderer.setProperty(this._element.nativeElement, 'scrollTop', 0);
if (this._config.animated) {
Utils.reflow(this._element.nativeElement);
}
// this._addClassIn = true;
this._renderer.addClass(this._element.nativeElement, CLASS_NAME.IN);
if (!isBs3()) {
this._renderer.addClass(this._element.nativeElement, CLASS_NAME.SHOW);
}
/** @type {?} */
const transitionComplete = (/**
* @return {?}
*/
() => {
if (this._config.focus) {
this._element.nativeElement.focus();
}
this.onShown.emit(this);
});
if (this._config.animated) {
setTimeout(transitionComplete, TRANSITION_DURATION);
}
else {
transitionComplete();
}
}
/**
* \@internal
* @protected
* @return {?}
*/
hideModal() {
this._renderer.setAttribute(this._element.nativeElement, 'aria-hidden', 'true');
this._renderer.setStyle(this._element.nativeElement, 'display', 'none');
this.showBackdrop((/**
* @return {?}
*/
() => {
if (!this.isNested) {
if (document && document.body) {
this._renderer.removeClass(document.body, CLASS_NAME.OPEN);
}
this.resetScrollbar();
}
this.resetAdjustments();
this.focusOtherModal();
this.onHidden.emit(this);
}));
}
// todo: original show was calling a callback when done, but we can use
// promise
/**
* \@internal
* @protected
* @param {?=} callback
* @return {?}
*/
showBackdrop(callback) {
if (this._isShown &&
this.config.backdrop &&
(!this.backdrop || !this.backdrop.instance.isShown)) {
this.removeBackdrop();
this._backdrop
.attach(ModalBackdropComponent)
.to('body')
.show({ isAnimated: this._config.animated });
this.backdrop = this._backdrop._componentRef;
if (!callback) {
return;
}
if (!this._config.animated) {
callback();
return;
}
setTimeout(callback, BACKDROP_TRANSITION_DURATION);
}
else if (!this._isShown && this.backdrop) {
this.backdrop.instance.isShown = false;
/** @type {?} */
const callbackRemove = (/**
* @return {?}
*/
() => {
this.removeBackdrop();
if (callback) {
callback();
}
});
if (this.backdrop.instance.isAnimated) {
this.timerRmBackDrop = window.setTimeout(callbackRemove, BACKDROP_TRANSITION_DURATION);
}
else {
callbackRemove();
}
}
else if (callback) {
callback();
}
}
/**
* \@internal
* @protected
* @return {?}
*/
removeBackdrop() {
this._backdrop.hide();
}
/**
* Events tricks
* @protected
* @return {?}
*/
// no need for it
// protected setEscapeEvent():void {
// if (this._isShown && this._config.keyboard) {
// $(this._element).on(Event.KEYDOWN_DISMISS, (event) => {
// if (event.which === 27) {
// this.hide()
// }
// })
//
// } else if (!this._isShown) {
// $(this._element).off(Event.KEYDOWN_DISMISS)
// }
// }
// protected setResizeEvent():void {
// console.log(this.renderer.listenGlobal('', Event.RESIZE));
// if (this._isShown) {
// $(window).on(Event.RESIZE, $.proxy(this._handleUpdate, this))
// } else {
// $(window).off(Event.RESIZE)
// }
// }
focusOtherModal() {
if (this._element.nativeElement.parentElement == null) {
return;
}
/** @type {?} */
const otherOpenedModals = this._element.nativeElement.parentElement.querySelectorAll('.in[bsModal]');
if (!otherOpenedModals.length) {
return;
}
otherOpenedModals[otherOpenedModals.length - 1].focus();
}
/**
* \@internal
* @protected
* @return {?}
*/
resetAdjustments() {
this._renderer.setStyle(this._element.nativeElement, 'paddingLeft', '');
this._renderer.setStyle(this._element.nativeElement, 'paddingRight', '');
}
/** Scroll bar tricks */
/**
* \@internal
* @protected
* @return {?}
*/
checkScrollbar() {
this.isBodyOverflowing = document.body.clientWidth < window.innerWidth;
this.scrollbarWidth = this.getScrollbarWidth();
}
/**
* @protected
* @return {?}
*/
setScrollbar() {
if (!document) {
return;
}
this.originalBodyPadding = parseInt(window
.getComputedStyle(document.body)
.getPropertyValue('padding-right') || 0, 10);
if (this.isBodyOverflowing) {
document.body.style.paddingRight = `${this.originalBodyPadding +
this.scrollbarWidth}px`;
}
}
/**
* @protected
* @return {?}
*/
resetScrollbar() {
document.body.style.paddingRight = `${this.originalBodyPadding}px`;
}
// thx d.walsh
/**
* @protected
* @return {?}
*/
getScrollbarWidth() {
/** @type {?} */
const scrollDiv = this._renderer.createElement('div');
this._renderer.addClass(scrollDiv, CLASS_NAME.SCROLLBAR_MEASURER);
this._renderer.appendChild(document.body, scrollDiv);
/** @type {?} */
const scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth;
this._renderer.removeChild(document.body, scrollDiv);
return scrollbarWidth;
}
}
ModalDirective.decorators = [
{ type: Directive, args: [{
selector: '[bsModal]',
exportAs: 'bs-modal'
},] }
];
/** @nocollapse */
ModalDirective.ctorParameters = () => [
{ type: ElementRef },
{ type: ViewContainerRef },
{ type: Renderer2 },
{ type: ComponentLoaderFactory }
];
ModalDirective.propDecorators = {
config: [{ type: Input }],
onShow: [{ type: Output }],
onShown: [{ type: Output }],
onHide: [{ type: Output }],
onHidden: [{ type: Output }],
onClick: [{ type: HostListener, args: ['click', ['$event'],] }],
onEsc: [{ type: HostListener, args: ['keydown.esc', ['$event'],] }]
};
if (false) {
/**
* This event fires immediately when the `show` instance method is called.
* @type {?}
*/
ModalDirective.prototype.onShow;
/**
* This event is fired when the modal has been made visible to the user
* (will wait for CSS transitions to complete)
* @type {?}
*/
ModalDirective.prototype.onShown;
/**
* This event is fired immediately when
* the hide instance method has been called.
* @type {?}
*/
ModalDirective.prototype.onHide;
/**
* This event is fired when the modal has finished being
* hidden from the user (will wait for CSS transitions to complete).
* @type {?}
*/
ModalDirective.prototype.onHidden;
/**
* This field contains last dismiss reason.
* Possible values: `backdrop-click`, `esc` and `null`
* (if modal was closed by direct call of `.hide()`).
* @type {?}
*/
ModalDirective.prototype.dismissReason;
/**
* @type {?}
* @protected
*/
ModalDirective.prototype._config;
/**
* @type {?}
* @protected
*/
ModalDirective.prototype._isShown;
/**
* @type {?}
* @protected
*/
ModalDirective.prototype.isBodyOverflowing;
/**
* @type {?}
* @protected
*/
ModalDirective.prototype.originalBodyPadding;
/**
* @type {?}
* @protected
*/
ModalDirective.prototype.scrollbarWidth;
/**
* @type {?}
* @protected
*/
ModalDirective.prototype.timerHideModal;
/**
* @type {?}
* @protected
*/
ModalDirective.prototype.timerRmBackDrop;
/**
* @type {?}
* @protected
*/
ModalDirective.prototype.backdrop;
/**
* @type {?}
* @private
*/
ModalDirective.prototype._backdrop;
/**
* @type {?}
* @private
*/
ModalDirective.prototype.isNested;
/**
* @type {?}
* @private
*/
ModalDirective.prototype._element;
/**
* @type {?}
* @private
*/
ModalDirective.prototype._renderer;
}
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tslint:disable:max-file-line-count */\n// todo: should we support enforce focus in?\n// todo: in original bs there are was a way to prevent modal from showing\n// todo: original modal had resize events\n\nimport {\n  ComponentRef, Directive, ElementRef, EventEmitter, HostListener, Input,\n  OnDestroy, OnInit, Output, Renderer2, ViewContainerRef\n} from '@angular/core';\n\nimport { document, window, isBs3, Utils } from 'ngx-bootstrap/utils';\nimport { ModalBackdropComponent } from './modal-backdrop.component';\nimport {\n  CLASS_NAME, DISMISS_REASONS, modalConfigDefaults, ModalOptions\n} from './modal-options.class';\nimport { ComponentLoader, ComponentLoaderFactory } from 'ngx-bootstrap/component-loader';\n\nconst TRANSITION_DURATION = 300;\nconst BACKDROP_TRANSITION_DURATION = 150;\n\n/** Mark any code with directive to show it's content in modal */\n@Directive({\n  selector: '[bsModal]',\n  exportAs: 'bs-modal'\n})\nexport class ModalDirective implements OnDestroy, OnInit {\n  /** allows to set modal configuration via element property */\n  @Input()\n  set config(conf: ModalOptions) {\n    this._config = this.getConfig(conf);\n  }\n\n  get config(): ModalOptions {\n    return this._config;\n  }\n\n  /** This event fires immediately when the `show` instance method is called. */\n  @Output()\n  onShow: EventEmitter<ModalDirective> = new EventEmitter<ModalDirective>();\n  /** This event is fired when the modal has been made visible to the user\n   * (will wait for CSS transitions to complete)\n   */\n  @Output()\n  onShown: EventEmitter<ModalDirective> = new EventEmitter<ModalDirective>();\n  /** This event is fired immediately when\n   * the hide instance method has been called.\n   */\n  @Output()\n  onHide: EventEmitter<ModalDirective> = new EventEmitter<ModalDirective>();\n  /** This event is fired when the modal has finished being\n   * hidden from the user (will wait for CSS transitions to complete).\n   */\n  @Output()\n  onHidden: EventEmitter<ModalDirective> = new EventEmitter<ModalDirective>();\n\n  /** This field contains last dismiss reason.\n   * Possible values: `backdrop-click`, `esc` and `null`\n   * (if modal was closed by direct call of `.hide()`).\n   */\n  dismissReason: string;\n\n  get isShown(): boolean {\n    return this._isShown;\n  }\n\n  protected _config: ModalOptions;\n  protected _isShown = false;\n\n  protected isBodyOverflowing = false;\n  protected originalBodyPadding = 0;\n  protected scrollbarWidth = 0;\n\n  protected timerHideModal = 0;\n  protected timerRmBackDrop = 0;\n\n  // reference to backdrop component\n  protected backdrop: ComponentRef<ModalBackdropComponent>;\n  private _backdrop: ComponentLoader<ModalBackdropComponent>;\n\n  private isNested = false;\n\n  constructor(private _element: ElementRef,\n              _viewContainerRef: ViewContainerRef,\n              private _renderer: Renderer2,\n              clf: ComponentLoaderFactory) {\n    this._backdrop = clf.createLoader<ModalBackdropComponent>(\n      _element,\n      _viewContainerRef,\n      _renderer\n    );\n  }\n\n  @HostListener('click', ['$event'])\n  onClick(event: MouseEvent): void {\n    if (\n      this.config.ignoreBackdropClick ||\n      this.config.backdrop === 'static' ||\n      event.target !== this._element.nativeElement\n    ) {\n      return;\n    }\n    this.dismissReason = DISMISS_REASONS.BACKRDOP;\n    this.hide(event);\n  }\n\n  // todo: consider preventing default and stopping propagation\n  @HostListener('keydown.esc', ['$event'])\n  onEsc(event: KeyboardEvent): void {\n    if (!this._isShown) {\n      return;\n    }\n    // tslint:disable-next-line:deprecation\n    if (event.keyCode === 27 || event.key === 'Escape') {\n      event.preventDefault();\n    }\n\n    if (this.config.keyboard) {\n      this.dismissReason = DISMISS_REASONS.ESC;\n      this.hide();\n    }\n  }\n\n  ngOnDestroy() {\n    this.config = void 0;\n    if (this._isShown) {\n      this._isShown = false;\n      this.hideModal();\n      this._backdrop.dispose();\n    }\n  }\n\n  ngOnInit(): void {\n    this._config = this._config || this.getConfig();\n    setTimeout(() => {\n      if (this._config.show) {\n        this.show();\n      }\n    }, 0);\n  }\n\n  /* Public methods */\n\n  /** Allows to manually toggle modal visibility */\n  toggle(): void {\n    return this._isShown ? this.hide() : this.show();\n  }\n\n  /** Allows to manually open modal */\n  show(): void {\n    this.dismissReason = null;\n    this.onShow.emit(this);\n    if (this._isShown) {\n      return;\n    }\n    clearTimeout(this.timerHideModal);\n    clearTimeout(this.timerRmBackDrop);\n\n    this._isShown = true;\n\n    this.checkScrollbar();\n    this.setScrollbar();\n\n    if (document && document.body) {\n      if (document.body.classList.contains(CLASS_NAME.OPEN)) {\n        this.isNested = true;\n      } else {\n        this._renderer.addClass(document.body, CLASS_NAME.OPEN);\n      }\n    }\n\n    this.showBackdrop(() => {\n      this.showElement();\n    });\n  }\n\n  /** Allows to manually close modal */\n  hide(event?: Event): void {\n    if (event) {\n      event.preventDefault();\n    }\n\n    this.onHide.emit(this);\n\n    // todo: add an option to prevent hiding\n    if (!this._isShown) {\n      return;\n    }\n\n    window.clearTimeout(this.timerHideModal);\n    window.clearTimeout(this.timerRmBackDrop);\n\n    this._isShown = false;\n    this._renderer.removeClass(this._element.nativeElement, CLASS_NAME.IN);\n    if (!isBs3()) {\n      this._renderer.removeClass(this._element.nativeElement, CLASS_NAME.SHOW);\n    }\n    // this._addClassIn = false;\n\n    if (this._config.animated) {\n      this.timerHideModal = window.setTimeout(\n        () => this.hideModal(),\n        TRANSITION_DURATION\n      );\n    } else {\n      this.hideModal();\n    }\n  }\n\n  /** Private methods @internal */\n  protected getConfig(config?: ModalOptions): ModalOptions {\n    return Object.assign({}, modalConfigDefaults, config);\n  }\n\n  /**\n   *  Show dialog\n   *  @internal\n   */\n  protected showElement(): void {\n    // todo: replace this with component loader usage\n    if (\n      !this._element.nativeElement.parentNode ||\n      this._element.nativeElement.parentNode.nodeType !== Node.ELEMENT_NODE\n    ) {\n      // don't move modals dom position\n      if (document && document.body) {\n        document.body.appendChild(this._element.nativeElement);\n      }\n    }\n\n    this._renderer.setAttribute(\n      this._element.nativeElement,\n      'aria-hidden',\n      'false'\n    );\n    this._renderer.setAttribute(\n      this._element.nativeElement,\n      'aria-modal',\n      'true'\n    );\n    this._renderer.setStyle(\n      this._element.nativeElement,\n      'display',\n      'block'\n    );\n    this._renderer.setProperty(\n      this._element.nativeElement,\n      'scrollTop',\n      0\n    );\n\n    if (this._config.animated) {\n      Utils.reflow(this._element.nativeElement);\n    }\n\n    // this._addClassIn = true;\n    this._renderer.addClass(this._element.nativeElement, CLASS_NAME.IN);\n    if (!isBs3()) {\n      this._renderer.addClass(this._element.nativeElement, CLASS_NAME.SHOW);\n    }\n\n    const transitionComplete = () => {\n      if (this._config.focus) {\n        this._element.nativeElement.focus();\n      }\n      this.onShown.emit(this);\n    };\n\n    if (this._config.animated) {\n      setTimeout(transitionComplete, TRANSITION_DURATION);\n    } else {\n      transitionComplete();\n    }\n  }\n\n  /** @internal */\n  protected hideModal(): void {\n    this._renderer.setAttribute(\n      this._element.nativeElement,\n      'aria-hidden',\n      'true'\n    );\n    this._renderer.setStyle(\n      this._element.nativeElement,\n      'display',\n      'none'\n    );\n    this.showBackdrop(() => {\n      if (!this.isNested) {\n        if (document && document.body) {\n          this._renderer.removeClass(document.body, CLASS_NAME.OPEN);\n        }\n        this.resetScrollbar();\n      }\n      this.resetAdjustments();\n      this.focusOtherModal();\n      this.onHidden.emit(this);\n    });\n  }\n\n  // todo: original show was calling a callback when done, but we can use\n  // promise\n  /** @internal */\n  protected showBackdrop(callback?: Function): void {\n    if (\n      this._isShown &&\n      this.config.backdrop &&\n      (!this.backdrop || !this.backdrop.instance.isShown)\n    ) {\n      this.removeBackdrop();\n      this._backdrop\n        .attach(ModalBackdropComponent)\n        .to('body')\n        .show({isAnimated: this._config.animated});\n      this.backdrop = this._backdrop._componentRef;\n\n      if (!callback) {\n        return;\n      }\n\n      if (!this._config.animated) {\n        callback();\n\n        return;\n      }\n\n      setTimeout(callback, BACKDROP_TRANSITION_DURATION);\n    } else if (!this._isShown && this.backdrop) {\n      this.backdrop.instance.isShown = false;\n\n      const callbackRemove = () => {\n        this.removeBackdrop();\n        if (callback) {\n          callback();\n        }\n      };\n\n      if (this.backdrop.instance.isAnimated) {\n        this.timerRmBackDrop = window.setTimeout(\n          callbackRemove,\n          BACKDROP_TRANSITION_DURATION\n        );\n      } else {\n        callbackRemove();\n      }\n    } else if (callback) {\n      callback();\n    }\n  }\n\n  /** @internal */\n  protected removeBackdrop(): void {\n    this._backdrop.hide();\n  }\n\n  /** Events tricks */\n\n  // no need for it\n  // protected setEscapeEvent():void {\n  //   if (this._isShown && this._config.keyboard) {\n  //     $(this._element).on(Event.KEYDOWN_DISMISS, (event) => {\n  //       if (event.which === 27) {\n  //         this.hide()\n  //       }\n  //     })\n  //\n  //   } else if (!this._isShown) {\n  //     $(this._element).off(Event.KEYDOWN_DISMISS)\n  //   }\n  // }\n\n  // protected setResizeEvent():void {\n  // console.log(this.renderer.listenGlobal('', Event.RESIZE));\n  // if (this._isShown) {\n  //   $(window).on(Event.RESIZE, $.proxy(this._handleUpdate, this))\n  // } else {\n  //   $(window).off(Event.RESIZE)\n  // }\n  // }\n\n  protected focusOtherModal() {\n    if (this._element.nativeElement.parentElement == null) {\n      return;\n    }\n    const otherOpenedModals = this._element.nativeElement.parentElement.querySelectorAll('.in[bsModal]');\n    if (!otherOpenedModals.length) {\n      return;\n    }\n    otherOpenedModals[otherOpenedModals.length - 1].focus();\n  }\n\n  /** @internal */\n  protected resetAdjustments(): void {\n    this._renderer.setStyle(\n      this._element.nativeElement,\n      'paddingLeft',\n      ''\n    );\n    this._renderer.setStyle(\n      this._element.nativeElement,\n      'paddingRight',\n      ''\n    );\n  }\n\n  /** Scroll bar tricks */\n  /** @internal */\n  protected checkScrollbar(): void {\n    this.isBodyOverflowing = document.body.clientWidth < window.innerWidth;\n    this.scrollbarWidth = this.getScrollbarWidth();\n  }\n\n  protected setScrollbar(): void {\n    if (!document) {\n      return;\n    }\n\n    this.originalBodyPadding = parseInt(\n      window\n        .getComputedStyle(document.body)\n        .getPropertyValue('padding-right') || 0,\n      10\n    );\n\n    if (this.isBodyOverflowing) {\n      document.body.style.paddingRight = `${this.originalBodyPadding +\n      this.scrollbarWidth}px`;\n    }\n  }\n\n  protected resetScrollbar(): void {\n    document.body.style.paddingRight = `${this.originalBodyPadding}px`;\n  }\n\n  // thx d.walsh\n  protected getScrollbarWidth(): number {\n    const scrollDiv = this._renderer.createElement('div');\n    this._renderer.addClass(scrollDiv, CLASS_NAME.SCROLLBAR_MEASURER);\n    this._renderer.appendChild(document.body, scrollDiv);\n    const scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth;\n    this._renderer.removeChild(document.body, scrollDiv);\n\n    return scrollbarWidth;\n  }\n}\n"]}