@ng-bootstrap/ng-bootstrap
Version:
Angular powered Bootstrap
210 lines • 34.9 kB
JavaScript
import { DOCUMENT } from '@angular/common';
import { ApplicationRef, EventEmitter, Inject, Injectable, Injector, NgZone, RendererFactory2, TemplateRef } from '@angular/core';
import { Subject } from 'rxjs';
import { ngbFocusTrap } from '../util/focus-trap';
import { ContentRef } from '../util/popup';
import { ScrollBar } from '../util/scrollbar';
import { isDefined, isString } from '../util/util';
import { NgbModalBackdrop } from './modal-backdrop';
import { NgbActiveModal, NgbModalRef } from './modal-ref';
import { NgbModalWindow } from './modal-window';
import * as i0 from "@angular/core";
import * as i1 from "@angular/common";
import * as i2 from "../util/scrollbar";
export class NgbModalStack {
constructor(_applicationRef, _injector, _document, _scrollBar, _rendererFactory, _ngZone) {
this._applicationRef = _applicationRef;
this._injector = _injector;
this._document = _document;
this._scrollBar = _scrollBar;
this._rendererFactory = _rendererFactory;
this._ngZone = _ngZone;
this._activeWindowCmptHasChanged = new Subject();
this._ariaHiddenValues = new Map();
this._backdropAttributes = ['animation', 'backdropClass'];
this._modalRefs = [];
this._windowAttributes = [
'animation', 'ariaLabelledBy', 'ariaDescribedBy', 'backdrop', 'centered', 'keyboard', 'scrollable', 'size',
'windowClass', 'modalDialogClass'
];
this._windowCmpts = [];
this._activeInstances = new EventEmitter();
// Trap focus on active WindowCmpt
this._activeWindowCmptHasChanged.subscribe(() => {
if (this._windowCmpts.length) {
const activeWindowCmpt = this._windowCmpts[this._windowCmpts.length - 1];
ngbFocusTrap(this._ngZone, activeWindowCmpt.location.nativeElement, this._activeWindowCmptHasChanged);
this._revertAriaHidden();
this._setAriaHidden(activeWindowCmpt.location.nativeElement);
}
});
}
open(moduleCFR, contentInjector, content, options) {
const containerEl = options.container instanceof HTMLElement ? options.container : isDefined(options.container) ?
this._document.querySelector(options.container) :
this._document.body;
const renderer = this._rendererFactory.createRenderer(null, null);
const revertPaddingForScrollBar = this._scrollBar.compensate();
const removeBodyClass = () => {
if (!this._modalRefs.length) {
renderer.removeClass(this._document.body, 'modal-open');
this._revertAriaHidden();
}
};
if (!containerEl) {
throw new Error(`The specified modal container "${options.container || 'body'}" was not found in the DOM.`);
}
const activeModal = new NgbActiveModal();
const contentRef = this._getContentRef(moduleCFR, options.injector || contentInjector, content, activeModal, options);
let backdropCmptRef = options.backdrop !== false ? this._attachBackdrop(moduleCFR, containerEl) : undefined;
let windowCmptRef = this._attachWindowComponent(moduleCFR, containerEl, contentRef);
let ngbModalRef = new NgbModalRef(windowCmptRef, contentRef, backdropCmptRef, options.beforeDismiss);
this._registerModalRef(ngbModalRef);
this._registerWindowCmpt(windowCmptRef);
ngbModalRef.result.then(revertPaddingForScrollBar, revertPaddingForScrollBar);
ngbModalRef.result.then(removeBodyClass, removeBodyClass);
activeModal.close = (result) => { ngbModalRef.close(result); };
activeModal.dismiss = (reason) => { ngbModalRef.dismiss(reason); };
this._applyWindowOptions(windowCmptRef.instance, options);
if (this._modalRefs.length === 1) {
renderer.addClass(this._document.body, 'modal-open');
}
if (backdropCmptRef && backdropCmptRef.instance) {
this._applyBackdropOptions(backdropCmptRef.instance, options);
backdropCmptRef.changeDetectorRef.detectChanges();
}
windowCmptRef.changeDetectorRef.detectChanges();
return ngbModalRef;
}
get activeInstances() { return this._activeInstances; }
dismissAll(reason) { this._modalRefs.forEach(ngbModalRef => ngbModalRef.dismiss(reason)); }
hasOpenModals() { return this._modalRefs.length > 0; }
_attachBackdrop(moduleCFR, containerEl) {
let backdropFactory = moduleCFR.resolveComponentFactory(NgbModalBackdrop);
let backdropCmptRef = backdropFactory.create(this._injector);
this._applicationRef.attachView(backdropCmptRef.hostView);
containerEl.appendChild(backdropCmptRef.location.nativeElement);
return backdropCmptRef;
}
_attachWindowComponent(moduleCFR, containerEl, contentRef) {
let windowFactory = moduleCFR.resolveComponentFactory(NgbModalWindow);
let windowCmptRef = windowFactory.create(this._injector, contentRef.nodes);
this._applicationRef.attachView(windowCmptRef.hostView);
containerEl.appendChild(windowCmptRef.location.nativeElement);
return windowCmptRef;
}
_applyWindowOptions(windowInstance, options) {
this._windowAttributes.forEach((optionName) => {
if (isDefined(options[optionName])) {
windowInstance[optionName] = options[optionName];
}
});
}
_applyBackdropOptions(backdropInstance, options) {
this._backdropAttributes.forEach((optionName) => {
if (isDefined(options[optionName])) {
backdropInstance[optionName] = options[optionName];
}
});
}
_getContentRef(moduleCFR, contentInjector, content, activeModal, options) {
if (!content) {
return new ContentRef([]);
}
else if (content instanceof TemplateRef) {
return this._createFromTemplateRef(content, activeModal);
}
else if (isString(content)) {
return this._createFromString(content);
}
else {
return this._createFromComponent(moduleCFR, contentInjector, content, activeModal, options);
}
}
_createFromTemplateRef(content, activeModal) {
const context = {
$implicit: activeModal,
close(result) { activeModal.close(result); },
dismiss(reason) { activeModal.dismiss(reason); }
};
const viewRef = content.createEmbeddedView(context);
this._applicationRef.attachView(viewRef);
return new ContentRef([viewRef.rootNodes], viewRef);
}
_createFromString(content) {
const component = this._document.createTextNode(`${content}`);
return new ContentRef([[component]]);
}
_createFromComponent(moduleCFR, contentInjector, content, context, options) {
const contentCmptFactory = moduleCFR.resolveComponentFactory(content);
const modalContentInjector = Injector.create({ providers: [{ provide: NgbActiveModal, useValue: context }], parent: contentInjector });
const componentRef = contentCmptFactory.create(modalContentInjector);
const componentNativeEl = componentRef.location.nativeElement;
if (options.scrollable) {
componentNativeEl.classList.add('component-host-scrollable');
}
this._applicationRef.attachView(componentRef.hostView);
// FIXME: we should here get rid of the component nativeElement
// and use `[Array.from(componentNativeEl.childNodes)]` instead and remove the above CSS class.
return new ContentRef([[componentNativeEl]], componentRef.hostView, componentRef);
}
_setAriaHidden(element) {
const parent = element.parentElement;
if (parent && element !== this._document.body) {
Array.from(parent.children).forEach(sibling => {
if (sibling !== element && sibling.nodeName !== 'SCRIPT') {
this._ariaHiddenValues.set(sibling, sibling.getAttribute('aria-hidden'));
sibling.setAttribute('aria-hidden', 'true');
}
});
this._setAriaHidden(parent);
}
}
_revertAriaHidden() {
this._ariaHiddenValues.forEach((value, element) => {
if (value) {
element.setAttribute('aria-hidden', value);
}
else {
element.removeAttribute('aria-hidden');
}
});
this._ariaHiddenValues.clear();
}
_registerModalRef(ngbModalRef) {
const unregisterModalRef = () => {
const index = this._modalRefs.indexOf(ngbModalRef);
if (index > -1) {
this._modalRefs.splice(index, 1);
this._activeInstances.emit(this._modalRefs);
}
};
this._modalRefs.push(ngbModalRef);
this._activeInstances.emit(this._modalRefs);
ngbModalRef.result.then(unregisterModalRef, unregisterModalRef);
}
_registerWindowCmpt(ngbWindowCmpt) {
this._windowCmpts.push(ngbWindowCmpt);
this._activeWindowCmptHasChanged.next();
ngbWindowCmpt.onDestroy(() => {
const index = this._windowCmpts.indexOf(ngbWindowCmpt);
if (index > -1) {
this._windowCmpts.splice(index, 1);
this._activeWindowCmptHasChanged.next();
}
});
}
}
NgbModalStack.ɵprov = i0.ɵɵdefineInjectable({ factory: function NgbModalStack_Factory() { return new NgbModalStack(i0.ɵɵinject(i0.ApplicationRef), i0.ɵɵinject(i0.INJECTOR), i0.ɵɵinject(i1.DOCUMENT), i0.ɵɵinject(i2.ScrollBar), i0.ɵɵinject(i0.RendererFactory2), i0.ɵɵinject(i0.NgZone)); }, token: NgbModalStack, providedIn: "root" });
NgbModalStack.decorators = [
{ type: Injectable, args: [{ providedIn: 'root' },] }
];
NgbModalStack.ctorParameters = () => [
{ type: ApplicationRef },
{ type: Injector },
{ type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },
{ type: ScrollBar },
{ type: RendererFactory2 },
{ type: NgZone }
];
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{DOCUMENT} from '@angular/common';\nimport {\n  ApplicationRef,\n  ComponentFactoryResolver,\n  ComponentRef,\n  EventEmitter,\n  Inject,\n  Injectable,\n  Injector,\n  NgZone,\n  RendererFactory2,\n  TemplateRef\n} from '@angular/core';\nimport {Subject} from 'rxjs';\n\nimport {ngbFocusTrap} from '../util/focus-trap';\nimport {ContentRef} from '../util/popup';\nimport {ScrollBar} from '../util/scrollbar';\nimport {isDefined, isString} from '../util/util';\nimport {NgbModalBackdrop} from './modal-backdrop';\nimport {NgbModalOptions} from './modal-config';\nimport {NgbActiveModal, NgbModalRef} from './modal-ref';\nimport {NgbModalWindow} from './modal-window';\n\n@Injectable({providedIn: 'root'})\nexport class NgbModalStack {\n  private _activeWindowCmptHasChanged = new Subject();\n  private _ariaHiddenValues: Map<Element, string | null> = new Map();\n  private _backdropAttributes = ['animation', 'backdropClass'];\n  private _modalRefs: NgbModalRef[] = [];\n  private _windowAttributes = [\n    'animation', 'ariaLabelledBy', 'ariaDescribedBy', 'backdrop', 'centered', 'keyboard', 'scrollable', 'size',\n    'windowClass', 'modalDialogClass'\n  ];\n  private _windowCmpts: ComponentRef<NgbModalWindow>[] = [];\n  private _activeInstances: EventEmitter<NgbModalRef[]> = new EventEmitter();\n\n  constructor(\n      private _applicationRef: ApplicationRef, private _injector: Injector, @Inject(DOCUMENT) private _document: any,\n      private _scrollBar: ScrollBar, private _rendererFactory: RendererFactory2, private _ngZone: NgZone) {\n    // Trap focus on active WindowCmpt\n    this._activeWindowCmptHasChanged.subscribe(() => {\n      if (this._windowCmpts.length) {\n        const activeWindowCmpt = this._windowCmpts[this._windowCmpts.length - 1];\n        ngbFocusTrap(this._ngZone, activeWindowCmpt.location.nativeElement, this._activeWindowCmptHasChanged);\n        this._revertAriaHidden();\n        this._setAriaHidden(activeWindowCmpt.location.nativeElement);\n      }\n    });\n  }\n\n  open(moduleCFR: ComponentFactoryResolver, contentInjector: Injector, content: any, options): NgbModalRef {\n    const containerEl = options.container instanceof HTMLElement ? options.container : isDefined(options.container) ?\n                                                                   this._document.querySelector(options.container) :\n                                                                   this._document.body;\n    const renderer = this._rendererFactory.createRenderer(null, null);\n\n    const revertPaddingForScrollBar = this._scrollBar.compensate();\n    const removeBodyClass = () => {\n      if (!this._modalRefs.length) {\n        renderer.removeClass(this._document.body, 'modal-open');\n        this._revertAriaHidden();\n      }\n    };\n\n    if (!containerEl) {\n      throw new Error(`The specified modal container \"${options.container || 'body'}\" was not found in the DOM.`);\n    }\n\n    const activeModal = new NgbActiveModal();\n    const contentRef =\n        this._getContentRef(moduleCFR, options.injector || contentInjector, content, activeModal, options);\n\n    let backdropCmptRef: ComponentRef<NgbModalBackdrop>| undefined =\n        options.backdrop !== false ? this._attachBackdrop(moduleCFR, containerEl) : undefined;\n    let windowCmptRef: ComponentRef<NgbModalWindow> = this._attachWindowComponent(moduleCFR, containerEl, contentRef);\n    let ngbModalRef: NgbModalRef = new NgbModalRef(windowCmptRef, contentRef, backdropCmptRef, options.beforeDismiss);\n\n    this._registerModalRef(ngbModalRef);\n    this._registerWindowCmpt(windowCmptRef);\n    ngbModalRef.result.then(revertPaddingForScrollBar, revertPaddingForScrollBar);\n    ngbModalRef.result.then(removeBodyClass, removeBodyClass);\n    activeModal.close = (result: any) => { ngbModalRef.close(result); };\n    activeModal.dismiss = (reason: any) => { ngbModalRef.dismiss(reason); };\n\n    this._applyWindowOptions(windowCmptRef.instance, options);\n    if (this._modalRefs.length === 1) {\n      renderer.addClass(this._document.body, 'modal-open');\n    }\n\n    if (backdropCmptRef && backdropCmptRef.instance) {\n      this._applyBackdropOptions(backdropCmptRef.instance, options);\n      backdropCmptRef.changeDetectorRef.detectChanges();\n    }\n    windowCmptRef.changeDetectorRef.detectChanges();\n    return ngbModalRef;\n  }\n\n  get activeInstances() { return this._activeInstances; }\n\n  dismissAll(reason?: any) { this._modalRefs.forEach(ngbModalRef => ngbModalRef.dismiss(reason)); }\n\n  hasOpenModals(): boolean { return this._modalRefs.length > 0; }\n\n  private _attachBackdrop(moduleCFR: ComponentFactoryResolver, containerEl: any): ComponentRef<NgbModalBackdrop> {\n    let backdropFactory = moduleCFR.resolveComponentFactory(NgbModalBackdrop);\n    let backdropCmptRef = backdropFactory.create(this._injector);\n    this._applicationRef.attachView(backdropCmptRef.hostView);\n    containerEl.appendChild(backdropCmptRef.location.nativeElement);\n    return backdropCmptRef;\n  }\n\n  private _attachWindowComponent(moduleCFR: ComponentFactoryResolver, containerEl: any, contentRef: any):\n      ComponentRef<NgbModalWindow> {\n    let windowFactory = moduleCFR.resolveComponentFactory(NgbModalWindow);\n    let windowCmptRef = windowFactory.create(this._injector, contentRef.nodes);\n    this._applicationRef.attachView(windowCmptRef.hostView);\n    containerEl.appendChild(windowCmptRef.location.nativeElement);\n    return windowCmptRef;\n  }\n\n  private _applyWindowOptions(windowInstance: NgbModalWindow, options: Object): void {\n    this._windowAttributes.forEach((optionName: string) => {\n      if (isDefined(options[optionName])) {\n        windowInstance[optionName] = options[optionName];\n      }\n    });\n  }\n\n  private _applyBackdropOptions(backdropInstance: NgbModalBackdrop, options: Object): void {\n    this._backdropAttributes.forEach((optionName: string) => {\n      if (isDefined(options[optionName])) {\n        backdropInstance[optionName] = options[optionName];\n      }\n    });\n  }\n\n  private _getContentRef(\n      moduleCFR: ComponentFactoryResolver, contentInjector: Injector, content: any, activeModal: NgbActiveModal,\n      options: NgbModalOptions): ContentRef {\n    if (!content) {\n      return new ContentRef([]);\n    } else if (content instanceof TemplateRef) {\n      return this._createFromTemplateRef(content, activeModal);\n    } else if (isString(content)) {\n      return this._createFromString(content);\n    } else {\n      return this._createFromComponent(moduleCFR, contentInjector, content, activeModal, options);\n    }\n  }\n\n  private _createFromTemplateRef(content: TemplateRef<any>, activeModal: NgbActiveModal): ContentRef {\n    const context = {\n      $implicit: activeModal,\n      close(result) { activeModal.close(result); },\n      dismiss(reason) { activeModal.dismiss(reason); }\n    };\n    const viewRef = content.createEmbeddedView(context);\n    this._applicationRef.attachView(viewRef);\n    return new ContentRef([viewRef.rootNodes], viewRef);\n  }\n\n  private _createFromString(content: string): ContentRef {\n    const component = this._document.createTextNode(`${content}`);\n    return new ContentRef([[component]]);\n  }\n\n  private _createFromComponent(\n      moduleCFR: ComponentFactoryResolver, contentInjector: Injector, content: any, context: NgbActiveModal,\n      options: NgbModalOptions): ContentRef {\n    const contentCmptFactory = moduleCFR.resolveComponentFactory(content);\n    const modalContentInjector =\n        Injector.create({providers: [{provide: NgbActiveModal, useValue: context}], parent: contentInjector});\n    const componentRef = contentCmptFactory.create(modalContentInjector);\n    const componentNativeEl = componentRef.location.nativeElement;\n    if (options.scrollable) {\n      (componentNativeEl as HTMLElement).classList.add('component-host-scrollable');\n    }\n    this._applicationRef.attachView(componentRef.hostView);\n    // FIXME: we should here get rid of the component nativeElement\n    // and use `[Array.from(componentNativeEl.childNodes)]` instead and remove the above CSS class.\n    return new ContentRef([[componentNativeEl]], componentRef.hostView, componentRef);\n  }\n\n  private _setAriaHidden(element: Element) {\n    const parent = element.parentElement;\n    if (parent && element !== this._document.body) {\n      Array.from(parent.children).forEach(sibling => {\n        if (sibling !== element && sibling.nodeName !== 'SCRIPT') {\n          this._ariaHiddenValues.set(sibling, sibling.getAttribute('aria-hidden'));\n          sibling.setAttribute('aria-hidden', 'true');\n        }\n      });\n\n      this._setAriaHidden(parent);\n    }\n  }\n\n  private _revertAriaHidden() {\n    this._ariaHiddenValues.forEach((value, element) => {\n      if (value) {\n        element.setAttribute('aria-hidden', value);\n      } else {\n        element.removeAttribute('aria-hidden');\n      }\n    });\n    this._ariaHiddenValues.clear();\n  }\n\n  private _registerModalRef(ngbModalRef: NgbModalRef) {\n    const unregisterModalRef = () => {\n      const index = this._modalRefs.indexOf(ngbModalRef);\n      if (index > -1) {\n        this._modalRefs.splice(index, 1);\n        this._activeInstances.emit(this._modalRefs);\n      }\n    };\n    this._modalRefs.push(ngbModalRef);\n    this._activeInstances.emit(this._modalRefs);\n    ngbModalRef.result.then(unregisterModalRef, unregisterModalRef);\n  }\n\n  private _registerWindowCmpt(ngbWindowCmpt: ComponentRef<NgbModalWindow>) {\n    this._windowCmpts.push(ngbWindowCmpt);\n    this._activeWindowCmptHasChanged.next();\n\n    ngbWindowCmpt.onDestroy(() => {\n      const index = this._windowCmpts.indexOf(ngbWindowCmpt);\n      if (index > -1) {\n        this._windowCmpts.splice(index, 1);\n        this._activeWindowCmptHasChanged.next();\n      }\n    });\n  }\n}\n"]}