@ng-bootstrap/ng-bootstrap
Version:
Angular powered Bootstrap
228 lines • 34.7 kB
JavaScript
import { DOCUMENT } from '@angular/common';
import { ApplicationRef, createComponent, EnvironmentInjector, EventEmitter, inject, Injectable, Injector, NgZone, 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 { take } from 'rxjs/operators';
import * as i0 from "@angular/core";
export class NgbModalStack {
constructor() {
this._applicationRef = inject(ApplicationRef);
this._injector = inject(Injector);
this._environmentInjector = inject(EnvironmentInjector);
this._document = inject(DOCUMENT);
this._scrollBar = inject(ScrollBar);
this._activeWindowCmptHasChanged = new Subject();
this._ariaHiddenValues = new Map();
this._scrollBarRestoreFn = null;
this._modalRefs = [];
this._windowCmpts = [];
this._activeInstances = new EventEmitter();
const ngZone = inject(NgZone);
// Trap focus on active WindowCmpt
this._activeWindowCmptHasChanged.subscribe(() => {
if (this._windowCmpts.length) {
const activeWindowCmpt = this._windowCmpts[this._windowCmpts.length - 1];
ngbFocusTrap(ngZone, activeWindowCmpt.location.nativeElement, this._activeWindowCmptHasChanged);
this._revertAriaHidden();
this._setAriaHidden(activeWindowCmpt.location.nativeElement);
}
});
}
_restoreScrollBar() {
const scrollBarRestoreFn = this._scrollBarRestoreFn;
if (scrollBarRestoreFn) {
this._scrollBarRestoreFn = null;
scrollBarRestoreFn();
}
}
_hideScrollBar() {
if (!this._scrollBarRestoreFn) {
this._scrollBarRestoreFn = this._scrollBar.hide();
}
}
open(contentInjector, content, options) {
const containerEl = options.container instanceof HTMLElement
? options.container
: isDefined(options.container)
? this._document.querySelector(options.container)
: this._document.body;
if (!containerEl) {
throw new Error(`The specified modal container "${options.container || 'body'}" was not found in the DOM.`);
}
this._hideScrollBar();
const activeModal = new NgbActiveModal();
contentInjector = options.injector || contentInjector;
const environmentInjector = contentInjector.get(EnvironmentInjector, null) || this._environmentInjector;
const contentRef = this._getContentRef(contentInjector, environmentInjector, content, activeModal, options);
let backdropCmptRef = options.backdrop !== false ? this._attachBackdrop(containerEl) : undefined;
let windowCmptRef = this._attachWindowComponent(containerEl, contentRef.nodes);
let ngbModalRef = new NgbModalRef(windowCmptRef, contentRef, backdropCmptRef, options.beforeDismiss);
this._registerModalRef(ngbModalRef);
this._registerWindowCmpt(windowCmptRef);
// We have to cleanup DOM after the last modal when BOTH 'hidden' was emitted and 'result' promise was resolved:
// - with animations OFF, 'hidden' emits synchronously, then 'result' is resolved asynchronously
// - with animations ON, 'result' is resolved asynchronously, then 'hidden' emits asynchronously
ngbModalRef.hidden.pipe(take(1)).subscribe(() => Promise.resolve(true).then(() => {
if (!this._modalRefs.length) {
this._document.body.classList.remove('modal-open');
this._restoreScrollBar();
this._revertAriaHidden();
}
}));
activeModal.close = (result) => {
ngbModalRef.close(result);
};
activeModal.dismiss = (reason) => {
ngbModalRef.dismiss(reason);
};
activeModal.update = (options) => {
ngbModalRef.update(options);
};
ngbModalRef.update(options);
if (this._modalRefs.length === 1) {
this._document.body.classList.add('modal-open');
}
if (backdropCmptRef && backdropCmptRef.instance) {
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(containerEl) {
let backdropCmptRef = createComponent(NgbModalBackdrop, {
environmentInjector: this._applicationRef.injector,
elementInjector: this._injector,
});
this._applicationRef.attachView(backdropCmptRef.hostView);
containerEl.appendChild(backdropCmptRef.location.nativeElement);
return backdropCmptRef;
}
_attachWindowComponent(containerEl, projectableNodes) {
let windowCmptRef = createComponent(NgbModalWindow, {
environmentInjector: this._applicationRef.injector,
elementInjector: this._injector,
projectableNodes,
});
this._applicationRef.attachView(windowCmptRef.hostView);
containerEl.appendChild(windowCmptRef.location.nativeElement);
return windowCmptRef;
}
_getContentRef(contentInjector, environmentInjector, 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(contentInjector, environmentInjector, content, activeModal, options);
}
}
_createFromTemplateRef(templateRef, activeModal) {
const context = {
$implicit: activeModal,
close(result) {
activeModal.close(result);
},
dismiss(reason) {
activeModal.dismiss(reason);
},
};
const viewRef = templateRef.createEmbeddedView(context);
this._applicationRef.attachView(viewRef);
return new ContentRef([viewRef.rootNodes], viewRef);
}
_createFromString(content) {
const component = this._document.createTextNode(`${content}`);
return new ContentRef([[component]]);
}
_createFromComponent(contentInjector, environmentInjector, componentType, context, options) {
const elementInjector = Injector.create({
providers: [{ provide: NgbActiveModal, useValue: context }],
parent: contentInjector,
});
const componentRef = createComponent(componentType, {
environmentInjector,
elementInjector,
});
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();
}
});
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.0.0", ngImport: i0, type: NgbModalStack, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "17.0.0", ngImport: i0, type: NgbModalStack, providedIn: 'root' }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.0.0", ngImport: i0, type: NgbModalStack, decorators: [{
type: Injectable,
args: [{ providedIn: 'root' }]
}], ctorParameters: () => [] });
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{ DOCUMENT } from '@angular/common';\nimport {\n\tApplicationRef,\n\tComponentRef,\n\tcreateComponent,\n\tEnvironmentInjector,\n\tEventEmitter,\n\tinject,\n\tInjectable,\n\tInjector,\n\tNgZone,\n\tTemplateRef,\n\tType,\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, NgbModalUpdatableOptions } from './modal-config';\nimport { NgbActiveModal, NgbModalRef } from './modal-ref';\nimport { NgbModalWindow } from './modal-window';\nimport { take } from 'rxjs/operators';\n\n@Injectable({ providedIn: 'root' })\nexport class NgbModalStack {\n\tprivate _applicationRef = inject(ApplicationRef);\n\tprivate _injector = inject(Injector);\n\tprivate _environmentInjector = inject(EnvironmentInjector);\n\tprivate _document = inject(DOCUMENT);\n\tprivate _scrollBar = inject(ScrollBar);\n\n\tprivate _activeWindowCmptHasChanged = new Subject<void>();\n\tprivate _ariaHiddenValues: Map<Element, string | null> = new Map();\n\tprivate _scrollBarRestoreFn: null | (() => void) = null;\n\tprivate _modalRefs: NgbModalRef[] = [];\n\tprivate _windowCmpts: ComponentRef<NgbModalWindow>[] = [];\n\tprivate _activeInstances: EventEmitter<NgbModalRef[]> = new EventEmitter();\n\n\tconstructor() {\n\t\tconst ngZone = inject(NgZone);\n\n\t\t// Trap focus on active WindowCmpt\n\t\tthis._activeWindowCmptHasChanged.subscribe(() => {\n\t\t\tif (this._windowCmpts.length) {\n\t\t\t\tconst activeWindowCmpt = this._windowCmpts[this._windowCmpts.length - 1];\n\t\t\t\tngbFocusTrap(ngZone, activeWindowCmpt.location.nativeElement, this._activeWindowCmptHasChanged);\n\t\t\t\tthis._revertAriaHidden();\n\t\t\t\tthis._setAriaHidden(activeWindowCmpt.location.nativeElement);\n\t\t\t}\n\t\t});\n\t}\n\n\tprivate _restoreScrollBar() {\n\t\tconst scrollBarRestoreFn = this._scrollBarRestoreFn;\n\t\tif (scrollBarRestoreFn) {\n\t\t\tthis._scrollBarRestoreFn = null;\n\t\t\tscrollBarRestoreFn();\n\t\t}\n\t}\n\n\tprivate _hideScrollBar() {\n\t\tif (!this._scrollBarRestoreFn) {\n\t\t\tthis._scrollBarRestoreFn = this._scrollBar.hide();\n\t\t}\n\t}\n\n\topen(contentInjector: Injector, content: any, options: NgbModalOptions): NgbModalRef {\n\t\tconst containerEl =\n\t\t\toptions.container instanceof HTMLElement\n\t\t\t\t? options.container\n\t\t\t\t: isDefined(options.container)\n\t\t\t\t  ? this._document.querySelector(options.container!)\n\t\t\t\t  : this._document.body;\n\n\t\tif (!containerEl) {\n\t\t\tthrow new Error(`The specified modal container \"${options.container || 'body'}\" was not found in the DOM.`);\n\t\t}\n\n\t\tthis._hideScrollBar();\n\n\t\tconst activeModal = new NgbActiveModal();\n\n\t\tcontentInjector = options.injector || contentInjector;\n\t\tconst environmentInjector = contentInjector.get(EnvironmentInjector, null) || this._environmentInjector;\n\t\tconst contentRef = this._getContentRef(contentInjector, environmentInjector, content, activeModal, options);\n\n\t\tlet backdropCmptRef: ComponentRef<NgbModalBackdrop> | undefined =\n\t\t\toptions.backdrop !== false ? this._attachBackdrop(containerEl) : undefined;\n\t\tlet windowCmptRef: ComponentRef<NgbModalWindow> = this._attachWindowComponent(containerEl, contentRef.nodes);\n\t\tlet ngbModalRef: NgbModalRef = new NgbModalRef(windowCmptRef, contentRef, backdropCmptRef, options.beforeDismiss);\n\n\t\tthis._registerModalRef(ngbModalRef);\n\t\tthis._registerWindowCmpt(windowCmptRef);\n\n\t\t// We have to cleanup DOM after the last modal when BOTH 'hidden' was emitted and 'result' promise was resolved:\n\t\t// - with animations OFF, 'hidden' emits synchronously, then 'result' is resolved asynchronously\n\t\t// - with animations ON, 'result' is resolved asynchronously, then 'hidden' emits asynchronously\n\t\tngbModalRef.hidden.pipe(take(1)).subscribe(() =>\n\t\t\tPromise.resolve(true).then(() => {\n\t\t\t\tif (!this._modalRefs.length) {\n\t\t\t\t\tthis._document.body.classList.remove('modal-open');\n\t\t\t\t\tthis._restoreScrollBar();\n\t\t\t\t\tthis._revertAriaHidden();\n\t\t\t\t}\n\t\t\t}),\n\t\t);\n\n\t\tactiveModal.close = (result: any) => {\n\t\t\tngbModalRef.close(result);\n\t\t};\n\t\tactiveModal.dismiss = (reason: any) => {\n\t\t\tngbModalRef.dismiss(reason);\n\t\t};\n\n\t\tactiveModal.update = (options: NgbModalUpdatableOptions) => {\n\t\t\tngbModalRef.update(options);\n\t\t};\n\n\t\tngbModalRef.update(options);\n\t\tif (this._modalRefs.length === 1) {\n\t\t\tthis._document.body.classList.add('modal-open');\n\t\t}\n\n\t\tif (backdropCmptRef && backdropCmptRef.instance) {\n\t\t\tbackdropCmptRef.changeDetectorRef.detectChanges();\n\t\t}\n\t\twindowCmptRef.changeDetectorRef.detectChanges();\n\t\treturn ngbModalRef;\n\t}\n\n\tget activeInstances() {\n\t\treturn this._activeInstances;\n\t}\n\n\tdismissAll(reason?: any) {\n\t\tthis._modalRefs.forEach((ngbModalRef) => ngbModalRef.dismiss(reason));\n\t}\n\n\thasOpenModals(): boolean {\n\t\treturn this._modalRefs.length > 0;\n\t}\n\n\tprivate _attachBackdrop(containerEl: Element): ComponentRef<NgbModalBackdrop> {\n\t\tlet backdropCmptRef = createComponent(NgbModalBackdrop, {\n\t\t\tenvironmentInjector: this._applicationRef.injector,\n\t\t\telementInjector: this._injector,\n\t\t});\n\t\tthis._applicationRef.attachView(backdropCmptRef.hostView);\n\t\tcontainerEl.appendChild(backdropCmptRef.location.nativeElement);\n\t\treturn backdropCmptRef;\n\t}\n\n\tprivate _attachWindowComponent(containerEl: Element, projectableNodes: Node[][]): ComponentRef<NgbModalWindow> {\n\t\tlet windowCmptRef = createComponent(NgbModalWindow, {\n\t\t\tenvironmentInjector: this._applicationRef.injector,\n\t\t\telementInjector: this._injector,\n\t\t\tprojectableNodes,\n\t\t});\n\t\tthis._applicationRef.attachView(windowCmptRef.hostView);\n\t\tcontainerEl.appendChild(windowCmptRef.location.nativeElement);\n\t\treturn windowCmptRef;\n\t}\n\n\tprivate _getContentRef(\n\t\tcontentInjector: Injector,\n\t\tenvironmentInjector: EnvironmentInjector,\n\t\tcontent: Type<any> | TemplateRef<any> | string,\n\t\tactiveModal: NgbActiveModal,\n\t\toptions: NgbModalOptions,\n\t): ContentRef {\n\t\tif (!content) {\n\t\t\treturn new ContentRef([]);\n\t\t} else if (content instanceof TemplateRef) {\n\t\t\treturn this._createFromTemplateRef(content, activeModal);\n\t\t} else if (isString(content)) {\n\t\t\treturn this._createFromString(content);\n\t\t} else {\n\t\t\treturn this._createFromComponent(contentInjector, environmentInjector, content, activeModal, options);\n\t\t}\n\t}\n\n\tprivate _createFromTemplateRef(templateRef: TemplateRef<any>, activeModal: NgbActiveModal): ContentRef {\n\t\tconst context = {\n\t\t\t$implicit: activeModal,\n\t\t\tclose(result) {\n\t\t\t\tactiveModal.close(result);\n\t\t\t},\n\t\t\tdismiss(reason) {\n\t\t\t\tactiveModal.dismiss(reason);\n\t\t\t},\n\t\t};\n\t\tconst viewRef = templateRef.createEmbeddedView(context);\n\t\tthis._applicationRef.attachView(viewRef);\n\t\treturn new ContentRef([viewRef.rootNodes], viewRef);\n\t}\n\n\tprivate _createFromString(content: string): ContentRef {\n\t\tconst component = this._document.createTextNode(`${content}`);\n\t\treturn new ContentRef([[component]]);\n\t}\n\n\tprivate _createFromComponent(\n\t\tcontentInjector: Injector,\n\t\tenvironmentInjector: EnvironmentInjector,\n\t\tcomponentType: Type<any>,\n\t\tcontext: NgbActiveModal,\n\t\toptions: NgbModalOptions,\n\t): ContentRef {\n\t\tconst elementInjector = Injector.create({\n\t\t\tproviders: [{ provide: NgbActiveModal, useValue: context }],\n\t\t\tparent: contentInjector,\n\t\t});\n\t\tconst componentRef = createComponent(componentType, {\n\t\t\tenvironmentInjector,\n\t\t\telementInjector,\n\t\t});\n\t\tconst componentNativeEl = componentRef.location.nativeElement;\n\t\tif (options.scrollable) {\n\t\t\t(componentNativeEl as HTMLElement).classList.add('component-host-scrollable');\n\t\t}\n\t\tthis._applicationRef.attachView(componentRef.hostView);\n\t\t// FIXME: we should here get rid of the component nativeElement\n\t\t// and use `[Array.from(componentNativeEl.childNodes)]` instead and remove the above CSS class.\n\t\treturn new ContentRef([[componentNativeEl]], componentRef.hostView, componentRef);\n\t}\n\n\tprivate _setAriaHidden(element: Element) {\n\t\tconst parent = element.parentElement;\n\t\tif (parent && element !== this._document.body) {\n\t\t\tArray.from(parent.children).forEach((sibling) => {\n\t\t\t\tif (sibling !== element && sibling.nodeName !== 'SCRIPT') {\n\t\t\t\t\tthis._ariaHiddenValues.set(sibling, sibling.getAttribute('aria-hidden'));\n\t\t\t\t\tsibling.setAttribute('aria-hidden', 'true');\n\t\t\t\t}\n\t\t\t});\n\n\t\t\tthis._setAriaHidden(parent);\n\t\t}\n\t}\n\n\tprivate _revertAriaHidden() {\n\t\tthis._ariaHiddenValues.forEach((value, element) => {\n\t\t\tif (value) {\n\t\t\t\telement.setAttribute('aria-hidden', value);\n\t\t\t} else {\n\t\t\t\telement.removeAttribute('aria-hidden');\n\t\t\t}\n\t\t});\n\t\tthis._ariaHiddenValues.clear();\n\t}\n\n\tprivate _registerModalRef(ngbModalRef: NgbModalRef) {\n\t\tconst unregisterModalRef = () => {\n\t\t\tconst index = this._modalRefs.indexOf(ngbModalRef);\n\t\t\tif (index > -1) {\n\t\t\t\tthis._modalRefs.splice(index, 1);\n\t\t\t\tthis._activeInstances.emit(this._modalRefs);\n\t\t\t}\n\t\t};\n\t\tthis._modalRefs.push(ngbModalRef);\n\t\tthis._activeInstances.emit(this._modalRefs);\n\t\tngbModalRef.result.then(unregisterModalRef, unregisterModalRef);\n\t}\n\n\tprivate _registerWindowCmpt(ngbWindowCmpt: ComponentRef<NgbModalWindow>) {\n\t\tthis._windowCmpts.push(ngbWindowCmpt);\n\t\tthis._activeWindowCmptHasChanged.next();\n\n\t\tngbWindowCmpt.onDestroy(() => {\n\t\t\tconst index = this._windowCmpts.indexOf(ngbWindowCmpt);\n\t\t\tif (index > -1) {\n\t\t\t\tthis._windowCmpts.splice(index, 1);\n\t\t\t\tthis._activeWindowCmptHasChanged.next();\n\t\t\t}\n\t\t});\n\t}\n}\n"]}