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puhui-go-web/.angular/cache/17.0.7/vite/deps/chunk-C2DNBB57.js

2014 lines
66 KiB

import {
ALT,
CONTROL,
MAC_META,
META,
SHIFT
} from "./chunk-UMSNQQWJ.js";
import {
BreakpointObserver
} from "./chunk-5OJ3CSUZ.js";
import {
Platform,
_getEventTarget,
_getFocusedElementPierceShadowDom,
_getShadowRoot,
normalizePassiveListenerOptions
} from "./chunk-UPQZZZIG.js";
import {
coerceElement,
coerceNumberProperty
} from "./chunk-7XTJNSRU.js";
import {
DOCUMENT
} from "./chunk-OSQBUYO6.js";
import {
APP_ID,
BehaviorSubject,
Directive,
ElementRef,
EventEmitter,
Inject,
Injectable,
InjectionToken,
Input,
NgModule,
NgZone,
Observable,
Optional,
Output,
Subject,
booleanAttribute,
debounceTime,
distinctUntilChanged,
inject,
of,
setClassMetadata,
skip,
take,
takeUntil,
ɵɵInputTransformsFeature,
ɵɵNgOnChangesFeature,
ɵɵdefineDirective,
ɵɵdefineInjectable,
ɵɵdefineInjector,
ɵɵdefineNgModule,
ɵɵdirectiveInject,
ɵɵinject
} from "./chunk-FGESKT7O.js";
import {
__spreadValues
} from "./chunk-HSNDBVJ3.js";
// node_modules/@angular/cdk/fesm2022/observers.mjs
var _MutationObserverFactory = class _MutationObserverFactory {
create(callback) {
return typeof MutationObserver === "undefined" ? null : new MutationObserver(callback);
}
};
_MutationObserverFactory.ɵfac = function MutationObserverFactory_Factory(t) {
return new (t || _MutationObserverFactory)();
};
_MutationObserverFactory.ɵprov = ɵɵdefineInjectable({
token: _MutationObserverFactory,
factory: _MutationObserverFactory.ɵfac,
providedIn: "root"
});
var MutationObserverFactory = _MutationObserverFactory;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(MutationObserverFactory, [{
type: Injectable,
args: [{
providedIn: "root"
}]
}], null, null);
})();
var _ContentObserver = class _ContentObserver {
constructor(_mutationObserverFactory) {
this._mutationObserverFactory = _mutationObserverFactory;
this._observedElements = /* @__PURE__ */ new Map();
}
ngOnDestroy() {
this._observedElements.forEach((_, element) => this._cleanupObserver(element));
}
observe(elementOrRef) {
const element = coerceElement(elementOrRef);
return new Observable((observer) => {
const stream = this._observeElement(element);
const subscription = stream.subscribe(observer);
return () => {
subscription.unsubscribe();
this._unobserveElement(element);
};
});
}
/**
* Observes the given element by using the existing MutationObserver if available, or creating a
* new one if not.
*/
_observeElement(element) {
if (!this._observedElements.has(element)) {
const stream = new Subject();
const observer = this._mutationObserverFactory.create((mutations) => stream.next(mutations));
if (observer) {
observer.observe(element, {
characterData: true,
childList: true,
subtree: true
});
}
this._observedElements.set(element, {
observer,
stream,
count: 1
});
} else {
this._observedElements.get(element).count++;
}
return this._observedElements.get(element).stream;
}
/**
* Un-observes the given element and cleans up the underlying MutationObserver if nobody else is
* observing this element.
*/
_unobserveElement(element) {
if (this._observedElements.has(element)) {
this._observedElements.get(element).count--;
if (!this._observedElements.get(element).count) {
this._cleanupObserver(element);
}
}
}
/** Clean up the underlying MutationObserver for the specified element. */
_cleanupObserver(element) {
if (this._observedElements.has(element)) {
const {
observer,
stream
} = this._observedElements.get(element);
if (observer) {
observer.disconnect();
}
stream.complete();
this._observedElements.delete(element);
}
}
};
_ContentObserver.ɵfac = function ContentObserver_Factory(t) {
return new (t || _ContentObserver)(ɵɵinject(MutationObserverFactory));
};
_ContentObserver.ɵprov = ɵɵdefineInjectable({
token: _ContentObserver,
factory: _ContentObserver.ɵfac,
providedIn: "root"
});
var ContentObserver = _ContentObserver;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(ContentObserver, [{
type: Injectable,
args: [{
providedIn: "root"
}]
}], () => [{
type: MutationObserverFactory
}], null);
})();
var _CdkObserveContent = class _CdkObserveContent {
/**
* Whether observing content is disabled. This option can be used
* to disconnect the underlying MutationObserver until it is needed.
*/
get disabled() {
return this._disabled;
}
set disabled(value) {
this._disabled = value;
this._disabled ? this._unsubscribe() : this._subscribe();
}
/** Debounce interval for emitting the changes. */
get debounce() {
return this._debounce;
}
set debounce(value) {
this._debounce = coerceNumberProperty(value);
this._subscribe();
}
constructor(_contentObserver, _elementRef, _ngZone) {
this._contentObserver = _contentObserver;
this._elementRef = _elementRef;
this._ngZone = _ngZone;
this.event = new EventEmitter();
this._disabled = false;
this._currentSubscription = null;
}
ngAfterContentInit() {
if (!this._currentSubscription && !this.disabled) {
this._subscribe();
}
}
ngOnDestroy() {
this._unsubscribe();
}
_subscribe() {
this._unsubscribe();
const stream = this._contentObserver.observe(this._elementRef);
this._ngZone.runOutsideAngular(() => {
this._currentSubscription = (this.debounce ? stream.pipe(debounceTime(this.debounce)) : stream).subscribe(this.event);
});
}
_unsubscribe() {
this._currentSubscription?.unsubscribe();
}
};
_CdkObserveContent.ɵfac = function CdkObserveContent_Factory(t) {
return new (t || _CdkObserveContent)(ɵɵdirectiveInject(ContentObserver), ɵɵdirectiveInject(ElementRef), ɵɵdirectiveInject(NgZone));
};
_CdkObserveContent.ɵdir = ɵɵdefineDirective({
type: _CdkObserveContent,
selectors: [["", "cdkObserveContent", ""]],
inputs: {
disabled: ["cdkObserveContentDisabled", "disabled", booleanAttribute],
debounce: "debounce"
},
outputs: {
event: "cdkObserveContent"
},
exportAs: ["cdkObserveContent"],
features: [ɵɵInputTransformsFeature]
});
var CdkObserveContent = _CdkObserveContent;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(CdkObserveContent, [{
type: Directive,
args: [{
selector: "[cdkObserveContent]",
exportAs: "cdkObserveContent"
}]
}], () => [{
type: ContentObserver
}, {
type: ElementRef
}, {
type: NgZone
}], {
event: [{
type: Output,
args: ["cdkObserveContent"]
}],
disabled: [{
type: Input,
args: [{
alias: "cdkObserveContentDisabled",
transform: booleanAttribute
}]
}],
debounce: [{
type: Input
}]
});
})();
var _ObserversModule = class _ObserversModule {
};
_ObserversModule.ɵfac = function ObserversModule_Factory(t) {
return new (t || _ObserversModule)();
};
_ObserversModule.ɵmod = ɵɵdefineNgModule({
type: _ObserversModule,
declarations: [CdkObserveContent],
exports: [CdkObserveContent]
});
_ObserversModule.ɵinj = ɵɵdefineInjector({
providers: [MutationObserverFactory]
});
var ObserversModule = _ObserversModule;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(ObserversModule, [{
type: NgModule,
args: [{
exports: [CdkObserveContent],
declarations: [CdkObserveContent],
providers: [MutationObserverFactory]
}]
}], null, null);
})();
// node_modules/@angular/cdk/fesm2022/a11y.mjs
var ID_DELIMITER = " ";
function addAriaReferencedId(el, attr, id) {
const ids = getAriaReferenceIds(el, attr);
if (ids.some((existingId) => existingId.trim() == id.trim())) {
return;
}
ids.push(id.trim());
el.setAttribute(attr, ids.join(ID_DELIMITER));
}
function removeAriaReferencedId(el, attr, id) {
const ids = getAriaReferenceIds(el, attr);
const filteredIds = ids.filter((val) => val != id.trim());
if (filteredIds.length) {
el.setAttribute(attr, filteredIds.join(ID_DELIMITER));
} else {
el.removeAttribute(attr);
}
}
function getAriaReferenceIds(el, attr) {
return (el.getAttribute(attr) || "").match(/\S+/g) || [];
}
var CDK_DESCRIBEDBY_ID_PREFIX = "cdk-describedby-message";
var CDK_DESCRIBEDBY_HOST_ATTRIBUTE = "cdk-describedby-host";
var nextId = 0;
var _AriaDescriber = class _AriaDescriber {
constructor(_document, _platform) {
this._platform = _platform;
this._messageRegistry = /* @__PURE__ */ new Map();
this._messagesContainer = null;
this._id = `${nextId++}`;
this._document = _document;
this._id = inject(APP_ID) + "-" + nextId++;
}
describe(hostElement, message, role) {
if (!this._canBeDescribed(hostElement, message)) {
return;
}
const key = getKey(message, role);
if (typeof message !== "string") {
setMessageId(message, this._id);
this._messageRegistry.set(key, {
messageElement: message,
referenceCount: 0
});
} else if (!this._messageRegistry.has(key)) {
this._createMessageElement(message, role);
}
if (!this._isElementDescribedByMessage(hostElement, key)) {
this._addMessageReference(hostElement, key);
}
}
removeDescription(hostElement, message, role) {
if (!message || !this._isElementNode(hostElement)) {
return;
}
const key = getKey(message, role);
if (this._isElementDescribedByMessage(hostElement, key)) {
this._removeMessageReference(hostElement, key);
}
if (typeof message === "string") {
const registeredMessage = this._messageRegistry.get(key);
if (registeredMessage && registeredMessage.referenceCount === 0) {
this._deleteMessageElement(key);
}
}
if (this._messagesContainer?.childNodes.length === 0) {
this._messagesContainer.remove();
this._messagesContainer = null;
}
}
/** Unregisters all created message elements and removes the message container. */
ngOnDestroy() {
const describedElements = this._document.querySelectorAll(`[${CDK_DESCRIBEDBY_HOST_ATTRIBUTE}="${this._id}"]`);
for (let i = 0; i < describedElements.length; i++) {
this._removeCdkDescribedByReferenceIds(describedElements[i]);
describedElements[i].removeAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE);
}
this._messagesContainer?.remove();
this._messagesContainer = null;
this._messageRegistry.clear();
}
/**
* Creates a new element in the visually hidden message container element with the message
* as its content and adds it to the message registry.
*/
_createMessageElement(message, role) {
const messageElement = this._document.createElement("div");
setMessageId(messageElement, this._id);
messageElement.textContent = message;
if (role) {
messageElement.setAttribute("role", role);
}
this._createMessagesContainer();
this._messagesContainer.appendChild(messageElement);
this._messageRegistry.set(getKey(message, role), {
messageElement,
referenceCount: 0
});
}
/** Deletes the message element from the global messages container. */
_deleteMessageElement(key) {
this._messageRegistry.get(key)?.messageElement?.remove();
this._messageRegistry.delete(key);
}
/** Creates the global container for all aria-describedby messages. */
_createMessagesContainer() {
if (this._messagesContainer) {
return;
}
const containerClassName = "cdk-describedby-message-container";
const serverContainers = this._document.querySelectorAll(`.${containerClassName}[platform="server"]`);
for (let i = 0; i < serverContainers.length; i++) {
serverContainers[i].remove();
}
const messagesContainer = this._document.createElement("div");
messagesContainer.style.visibility = "hidden";
messagesContainer.classList.add(containerClassName);
messagesContainer.classList.add("cdk-visually-hidden");
if (this._platform && !this._platform.isBrowser) {
messagesContainer.setAttribute("platform", "server");
}
this._document.body.appendChild(messagesContainer);
this._messagesContainer = messagesContainer;
}
/** Removes all cdk-describedby messages that are hosted through the element. */
_removeCdkDescribedByReferenceIds(element) {
const originalReferenceIds = getAriaReferenceIds(element, "aria-describedby").filter((id) => id.indexOf(CDK_DESCRIBEDBY_ID_PREFIX) != 0);
element.setAttribute("aria-describedby", originalReferenceIds.join(" "));
}
/**
* Adds a message reference to the element using aria-describedby and increments the registered
* message's reference count.
*/
_addMessageReference(element, key) {
const registeredMessage = this._messageRegistry.get(key);
addAriaReferencedId(element, "aria-describedby", registeredMessage.messageElement.id);
element.setAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE, this._id);
registeredMessage.referenceCount++;
}
/**
* Removes a message reference from the element using aria-describedby
* and decrements the registered message's reference count.
*/
_removeMessageReference(element, key) {
const registeredMessage = this._messageRegistry.get(key);
registeredMessage.referenceCount--;
removeAriaReferencedId(element, "aria-describedby", registeredMessage.messageElement.id);
element.removeAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE);
}
/** Returns true if the element has been described by the provided message ID. */
_isElementDescribedByMessage(element, key) {
const referenceIds = getAriaReferenceIds(element, "aria-describedby");
const registeredMessage = this._messageRegistry.get(key);
const messageId = registeredMessage && registeredMessage.messageElement.id;
return !!messageId && referenceIds.indexOf(messageId) != -1;
}
/** Determines whether a message can be described on a particular element. */
_canBeDescribed(element, message) {
if (!this._isElementNode(element)) {
return false;
}
if (message && typeof message === "object") {
return true;
}
const trimmedMessage = message == null ? "" : `${message}`.trim();
const ariaLabel = element.getAttribute("aria-label");
return trimmedMessage ? !ariaLabel || ariaLabel.trim() !== trimmedMessage : false;
}
/** Checks whether a node is an Element node. */
_isElementNode(element) {
return element.nodeType === this._document.ELEMENT_NODE;
}
};
_AriaDescriber.ɵfac = function AriaDescriber_Factory(t) {
return new (t || _AriaDescriber)(ɵɵinject(DOCUMENT), ɵɵinject(Platform));
};
_AriaDescriber.ɵprov = ɵɵdefineInjectable({
token: _AriaDescriber,
factory: _AriaDescriber.ɵfac,
providedIn: "root"
});
var AriaDescriber = _AriaDescriber;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(AriaDescriber, [{
type: Injectable,
args: [{
providedIn: "root"
}]
}], () => [{
type: void 0,
decorators: [{
type: Inject,
args: [DOCUMENT]
}]
}, {
type: Platform
}], null);
})();
function getKey(message, role) {
return typeof message === "string" ? `${role || ""}/${message}` : message;
}
function setMessageId(element, serviceId) {
if (!element.id) {
element.id = `${CDK_DESCRIBEDBY_ID_PREFIX}-${serviceId}-${nextId++}`;
}
}
var _InteractivityChecker = class _InteractivityChecker {
constructor(_platform) {
this._platform = _platform;
}
/**
* Gets whether an element is disabled.
*
* @param element Element to be checked.
* @returns Whether the element is disabled.
*/
isDisabled(element) {
return element.hasAttribute("disabled");
}
/**
* Gets whether an element is visible for the purposes of interactivity.
*
* This will capture states like `display: none` and `visibility: hidden`, but not things like
* being clipped by an `overflow: hidden` parent or being outside the viewport.
*
* @returns Whether the element is visible.
*/
isVisible(element) {
return hasGeometry(element) && getComputedStyle(element).visibility === "visible";
}
/**
* Gets whether an element can be reached via Tab key.
* Assumes that the element has already been checked with isFocusable.
*
* @param element Element to be checked.
* @returns Whether the element is tabbable.
*/
isTabbable(element) {
if (!this._platform.isBrowser) {
return false;
}
const frameElement = getFrameElement(getWindow(element));
if (frameElement) {
if (getTabIndexValue(frameElement) === -1) {
return false;
}
if (!this.isVisible(frameElement)) {
return false;
}
}
let nodeName = element.nodeName.toLowerCase();
let tabIndexValue = getTabIndexValue(element);
if (element.hasAttribute("contenteditable")) {
return tabIndexValue !== -1;
}
if (nodeName === "iframe" || nodeName === "object") {
return false;
}
if (this._platform.WEBKIT && this._platform.IOS && !isPotentiallyTabbableIOS(element)) {
return false;
}
if (nodeName === "audio") {
if (!element.hasAttribute("controls")) {
return false;
}
return tabIndexValue !== -1;
}
if (nodeName === "video") {
if (tabIndexValue === -1) {
return false;
}
if (tabIndexValue !== null) {
return true;
}
return this._platform.FIREFOX || element.hasAttribute("controls");
}
return element.tabIndex >= 0;
}
/**
* Gets whether an element can be focused by the user.
*
* @param element Element to be checked.
* @param config The config object with options to customize this method's behavior
* @returns Whether the element is focusable.
*/
isFocusable(element, config) {
return isPotentiallyFocusable(element) && !this.isDisabled(element) && (config?.ignoreVisibility || this.isVisible(element));
}
};
_InteractivityChecker.ɵfac = function InteractivityChecker_Factory(t) {
return new (t || _InteractivityChecker)(ɵɵinject(Platform));
};
_InteractivityChecker.ɵprov = ɵɵdefineInjectable({
token: _InteractivityChecker,
factory: _InteractivityChecker.ɵfac,
providedIn: "root"
});
var InteractivityChecker = _InteractivityChecker;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(InteractivityChecker, [{
type: Injectable,
args: [{
providedIn: "root"
}]
}], () => [{
type: Platform
}], null);
})();
function getFrameElement(window2) {
try {
return window2.frameElement;
} catch {
return null;
}
}
function hasGeometry(element) {
return !!(element.offsetWidth || element.offsetHeight || typeof element.getClientRects === "function" && element.getClientRects().length);
}
function isNativeFormElement(element) {
let nodeName = element.nodeName.toLowerCase();
return nodeName === "input" || nodeName === "select" || nodeName === "button" || nodeName === "textarea";
}
function isHiddenInput(element) {
return isInputElement(element) && element.type == "hidden";
}
function isAnchorWithHref(element) {
return isAnchorElement(element) && element.hasAttribute("href");
}
function isInputElement(element) {
return element.nodeName.toLowerCase() == "input";
}
function isAnchorElement(element) {
return element.nodeName.toLowerCase() == "a";
}
function hasValidTabIndex(element) {
if (!element.hasAttribute("tabindex") || element.tabIndex === void 0) {
return false;
}
let tabIndex = element.getAttribute("tabindex");
return !!(tabIndex && !isNaN(parseInt(tabIndex, 10)));
}
function getTabIndexValue(element) {
if (!hasValidTabIndex(element)) {
return null;
}
const tabIndex = parseInt(element.getAttribute("tabindex") || "", 10);
return isNaN(tabIndex) ? -1 : tabIndex;
}
function isPotentiallyTabbableIOS(element) {
let nodeName = element.nodeName.toLowerCase();
let inputType = nodeName === "input" && element.type;
return inputType === "text" || inputType === "password" || nodeName === "select" || nodeName === "textarea";
}
function isPotentiallyFocusable(element) {
if (isHiddenInput(element)) {
return false;
}
return isNativeFormElement(element) || isAnchorWithHref(element) || element.hasAttribute("contenteditable") || hasValidTabIndex(element);
}
function getWindow(node) {
return node.ownerDocument && node.ownerDocument.defaultView || window;
}
var FocusTrap = class {
/** Whether the focus trap is active. */
get enabled() {
return this._enabled;
}
set enabled(value) {
this._enabled = value;
if (this._startAnchor && this._endAnchor) {
this._toggleAnchorTabIndex(value, this._startAnchor);
this._toggleAnchorTabIndex(value, this._endAnchor);
}
}
constructor(_element, _checker, _ngZone, _document, deferAnchors = false) {
this._element = _element;
this._checker = _checker;
this._ngZone = _ngZone;
this._document = _document;
this._hasAttached = false;
this.startAnchorListener = () => this.focusLastTabbableElement();
this.endAnchorListener = () => this.focusFirstTabbableElement();
this._enabled = true;
if (!deferAnchors) {
this.attachAnchors();
}
}
/** Destroys the focus trap by cleaning up the anchors. */
destroy() {
const startAnchor = this._startAnchor;
const endAnchor = this._endAnchor;
if (startAnchor) {
startAnchor.removeEventListener("focus", this.startAnchorListener);
startAnchor.remove();
}
if (endAnchor) {
endAnchor.removeEventListener("focus", this.endAnchorListener);
endAnchor.remove();
}
this._startAnchor = this._endAnchor = null;
this._hasAttached = false;
}
/**
* Inserts the anchors into the DOM. This is usually done automatically
* in the constructor, but can be deferred for cases like directives with `*ngIf`.
* @returns Whether the focus trap managed to attach successfully. This may not be the case
* if the target element isn't currently in the DOM.
*/
attachAnchors() {
if (this._hasAttached) {
return true;
}
this._ngZone.runOutsideAngular(() => {
if (!this._startAnchor) {
this._startAnchor = this._createAnchor();
this._startAnchor.addEventListener("focus", this.startAnchorListener);
}
if (!this._endAnchor) {
this._endAnchor = this._createAnchor();
this._endAnchor.addEventListener("focus", this.endAnchorListener);
}
});
if (this._element.parentNode) {
this._element.parentNode.insertBefore(this._startAnchor, this._element);
this._element.parentNode.insertBefore(this._endAnchor, this._element.nextSibling);
this._hasAttached = true;
}
return this._hasAttached;
}
/**
* Waits for the zone to stabilize, then focuses the first tabbable element.
* @returns Returns a promise that resolves with a boolean, depending
* on whether focus was moved successfully.
*/
focusInitialElementWhenReady(options) {
return new Promise((resolve) => {
this._executeOnStable(() => resolve(this.focusInitialElement(options)));
});
}
/**
* Waits for the zone to stabilize, then focuses
* the first tabbable element within the focus trap region.
* @returns Returns a promise that resolves with a boolean, depending
* on whether focus was moved successfully.
*/
focusFirstTabbableElementWhenReady(options) {
return new Promise((resolve) => {
this._executeOnStable(() => resolve(this.focusFirstTabbableElement(options)));
});
}
/**
* Waits for the zone to stabilize, then focuses
* the last tabbable element within the focus trap region.
* @returns Returns a promise that resolves with a boolean, depending
* on whether focus was moved successfully.
*/
focusLastTabbableElementWhenReady(options) {
return new Promise((resolve) => {
this._executeOnStable(() => resolve(this.focusLastTabbableElement(options)));
});
}
/**
* Get the specified boundary element of the trapped region.
* @param bound The boundary to get (start or end of trapped region).
* @returns The boundary element.
*/
_getRegionBoundary(bound) {
const markers = this._element.querySelectorAll(`[cdk-focus-region-${bound}], [cdkFocusRegion${bound}], [cdk-focus-${bound}]`);
if (typeof ngDevMode === "undefined" || ngDevMode) {
for (let i = 0; i < markers.length; i++) {
if (markers[i].hasAttribute(`cdk-focus-${bound}`)) {
console.warn(`Found use of deprecated attribute 'cdk-focus-${bound}', use 'cdkFocusRegion${bound}' instead. The deprecated attribute will be removed in 8.0.0.`, markers[i]);
} else if (markers[i].hasAttribute(`cdk-focus-region-${bound}`)) {
console.warn(`Found use of deprecated attribute 'cdk-focus-region-${bound}', use 'cdkFocusRegion${bound}' instead. The deprecated attribute will be removed in 8.0.0.`, markers[i]);
}
}
}
if (bound == "start") {
return markers.length ? markers[0] : this._getFirstTabbableElement(this._element);
}
return markers.length ? markers[markers.length - 1] : this._getLastTabbableElement(this._element);
}
/**
* Focuses the element that should be focused when the focus trap is initialized.
* @returns Whether focus was moved successfully.
*/
focusInitialElement(options) {
const redirectToElement = this._element.querySelector(`[cdk-focus-initial], [cdkFocusInitial]`);
if (redirectToElement) {
if ((typeof ngDevMode === "undefined" || ngDevMode) && redirectToElement.hasAttribute(`cdk-focus-initial`)) {
console.warn(`Found use of deprecated attribute 'cdk-focus-initial', use 'cdkFocusInitial' instead. The deprecated attribute will be removed in 8.0.0`, redirectToElement);
}
if ((typeof ngDevMode === "undefined" || ngDevMode) && !this._checker.isFocusable(redirectToElement)) {
console.warn(`Element matching '[cdkFocusInitial]' is not focusable.`, redirectToElement);
}
if (!this._checker.isFocusable(redirectToElement)) {
const focusableChild = this._getFirstTabbableElement(redirectToElement);
focusableChild?.focus(options);
return !!focusableChild;
}
redirectToElement.focus(options);
return true;
}
return this.focusFirstTabbableElement(options);
}
/**
* Focuses the first tabbable element within the focus trap region.
* @returns Whether focus was moved successfully.
*/
focusFirstTabbableElement(options) {
const redirectToElement = this._getRegionBoundary("start");
if (redirectToElement) {
redirectToElement.focus(options);
}
return !!redirectToElement;
}
/**
* Focuses the last tabbable element within the focus trap region.
* @returns Whether focus was moved successfully.
*/
focusLastTabbableElement(options) {
const redirectToElement = this._getRegionBoundary("end");
if (redirectToElement) {
redirectToElement.focus(options);
}
return !!redirectToElement;
}
/**
* Checks whether the focus trap has successfully been attached.
*/
hasAttached() {
return this._hasAttached;
}
/** Get the first tabbable element from a DOM subtree (inclusive). */
_getFirstTabbableElement(root) {
if (this._checker.isFocusable(root) && this._checker.isTabbable(root)) {
return root;
}
const children = root.children;
for (let i = 0; i < children.length; i++) {
const tabbableChild = children[i].nodeType === this._document.ELEMENT_NODE ? this._getFirstTabbableElement(children[i]) : null;
if (tabbableChild) {
return tabbableChild;
}
}
return null;
}
/** Get the last tabbable element from a DOM subtree (inclusive). */
_getLastTabbableElement(root) {
if (this._checker.isFocusable(root) && this._checker.isTabbable(root)) {
return root;
}
const children = root.children;
for (let i = children.length - 1; i >= 0; i--) {
const tabbableChild = children[i].nodeType === this._document.ELEMENT_NODE ? this._getLastTabbableElement(children[i]) : null;
if (tabbableChild) {
return tabbableChild;
}
}
return null;
}
/** Creates an anchor element. */
_createAnchor() {
const anchor = this._document.createElement("div");
this._toggleAnchorTabIndex(this._enabled, anchor);
anchor.classList.add("cdk-visually-hidden");
anchor.classList.add("cdk-focus-trap-anchor");
anchor.setAttribute("aria-hidden", "true");
return anchor;
}
/**
* Toggles the `tabindex` of an anchor, based on the enabled state of the focus trap.
* @param isEnabled Whether the focus trap is enabled.
* @param anchor Anchor on which to toggle the tabindex.
*/
_toggleAnchorTabIndex(isEnabled, anchor) {
isEnabled ? anchor.setAttribute("tabindex", "0") : anchor.removeAttribute("tabindex");
}
/**
* Toggles the`tabindex` of both anchors to either trap Tab focus or allow it to escape.
* @param enabled: Whether the anchors should trap Tab.
*/
toggleAnchors(enabled) {
if (this._startAnchor && this._endAnchor) {
this._toggleAnchorTabIndex(enabled, this._startAnchor);
this._toggleAnchorTabIndex(enabled, this._endAnchor);
}
}
/** Executes a function when the zone is stable. */
_executeOnStable(fn) {
if (this._ngZone.isStable) {
fn();
} else {
this._ngZone.onStable.pipe(take(1)).subscribe(fn);
}
}
};
var _FocusTrapFactory = class _FocusTrapFactory {
constructor(_checker, _ngZone, _document) {
this._checker = _checker;
this._ngZone = _ngZone;
this._document = _document;
}
/**
* Creates a focus-trapped region around the given element.
* @param element The element around which focus will be trapped.
* @param deferCaptureElements Defers the creation of focus-capturing elements to be done
* manually by the user.
* @returns The created focus trap instance.
*/
create(element, deferCaptureElements = false) {
return new FocusTrap(element, this._checker, this._ngZone, this._document, deferCaptureElements);
}
};
_FocusTrapFactory.ɵfac = function FocusTrapFactory_Factory(t) {
return new (t || _FocusTrapFactory)(ɵɵinject(InteractivityChecker), ɵɵinject(NgZone), ɵɵinject(DOCUMENT));
};
_FocusTrapFactory.ɵprov = ɵɵdefineInjectable({
token: _FocusTrapFactory,
factory: _FocusTrapFactory.ɵfac,
providedIn: "root"
});
var FocusTrapFactory = _FocusTrapFactory;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(FocusTrapFactory, [{
type: Injectable,
args: [{
providedIn: "root"
}]
}], () => [{
type: InteractivityChecker
}, {
type: NgZone
}, {
type: void 0,
decorators: [{
type: Inject,
args: [DOCUMENT]
}]
}], null);
})();
var _CdkTrapFocus = class _CdkTrapFocus {
/** Whether the focus trap is active. */
get enabled() {
return this.focusTrap.enabled;
}
set enabled(value) {
this.focusTrap.enabled = value;
}
constructor(_elementRef, _focusTrapFactory, _document) {
this._elementRef = _elementRef;
this._focusTrapFactory = _focusTrapFactory;
this._previouslyFocusedElement = null;
this.focusTrap = this._focusTrapFactory.create(this._elementRef.nativeElement, true);
}
ngOnDestroy() {
this.focusTrap.destroy();
if (this._previouslyFocusedElement) {
this._previouslyFocusedElement.focus();
this._previouslyFocusedElement = null;
}
}
ngAfterContentInit() {
this.focusTrap.attachAnchors();
if (this.autoCapture) {
this._captureFocus();
}
}
ngDoCheck() {
if (!this.focusTrap.hasAttached()) {
this.focusTrap.attachAnchors();
}
}
ngOnChanges(changes) {
const autoCaptureChange = changes["autoCapture"];
if (autoCaptureChange && !autoCaptureChange.firstChange && this.autoCapture && this.focusTrap.hasAttached()) {
this._captureFocus();
}
}
_captureFocus() {
this._previouslyFocusedElement = _getFocusedElementPierceShadowDom();
this.focusTrap.focusInitialElementWhenReady();
}
};
_CdkTrapFocus.ɵfac = function CdkTrapFocus_Factory(t) {
return new (t || _CdkTrapFocus)(ɵɵdirectiveInject(ElementRef), ɵɵdirectiveInject(FocusTrapFactory), ɵɵdirectiveInject(DOCUMENT));
};
_CdkTrapFocus.ɵdir = ɵɵdefineDirective({
type: _CdkTrapFocus,
selectors: [["", "cdkTrapFocus", ""]],
inputs: {
enabled: ["cdkTrapFocus", "enabled", booleanAttribute],
autoCapture: ["cdkTrapFocusAutoCapture", "autoCapture", booleanAttribute]
},
exportAs: ["cdkTrapFocus"],
features: [ɵɵInputTransformsFeature, ɵɵNgOnChangesFeature]
});
var CdkTrapFocus = _CdkTrapFocus;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(CdkTrapFocus, [{
type: Directive,
args: [{
selector: "[cdkTrapFocus]",
exportAs: "cdkTrapFocus"
}]
}], () => [{
type: ElementRef
}, {
type: FocusTrapFactory
}, {
type: void 0,
decorators: [{
type: Inject,
args: [DOCUMENT]
}]
}], {
enabled: [{
type: Input,
args: [{
alias: "cdkTrapFocus",
transform: booleanAttribute
}]
}],
autoCapture: [{
type: Input,
args: [{
alias: "cdkTrapFocusAutoCapture",
transform: booleanAttribute
}]
}]
});
})();
var ConfigurableFocusTrap = class extends FocusTrap {
/** Whether the FocusTrap is enabled. */
get enabled() {
return this._enabled;
}
set enabled(value) {
this._enabled = value;
if (this._enabled) {
this._focusTrapManager.register(this);
} else {
this._focusTrapManager.deregister(this);
}
}
constructor(_element, _checker, _ngZone, _document, _focusTrapManager, _inertStrategy, config) {
super(_element, _checker, _ngZone, _document, config.defer);
this._focusTrapManager = _focusTrapManager;
this._inertStrategy = _inertStrategy;
this._focusTrapManager.register(this);
}
/** Notifies the FocusTrapManager that this FocusTrap will be destroyed. */
destroy() {
this._focusTrapManager.deregister(this);
super.destroy();
}
/** @docs-private Implemented as part of ManagedFocusTrap. */
_enable() {
this._inertStrategy.preventFocus(this);
this.toggleAnchors(true);
}
/** @docs-private Implemented as part of ManagedFocusTrap. */
_disable() {
this._inertStrategy.allowFocus(this);
this.toggleAnchors(false);
}
};
var FOCUS_TRAP_INERT_STRATEGY = new InjectionToken("FOCUS_TRAP_INERT_STRATEGY");
var EventListenerFocusTrapInertStrategy = class {
constructor() {
this._listener = null;
}
/** Adds a document event listener that keeps focus inside the FocusTrap. */
preventFocus(focusTrap) {
if (this._listener) {
focusTrap._document.removeEventListener("focus", this._listener, true);
}
this._listener = (e) => this._trapFocus(focusTrap, e);
focusTrap._ngZone.runOutsideAngular(() => {
focusTrap._document.addEventListener("focus", this._listener, true);
});
}
/** Removes the event listener added in preventFocus. */
allowFocus(focusTrap) {
if (!this._listener) {
return;
}
focusTrap._document.removeEventListener("focus", this._listener, true);
this._listener = null;
}
/**
* Refocuses the first element in the FocusTrap if the focus event target was outside
* the FocusTrap.
*
* This is an event listener callback. The event listener is added in runOutsideAngular,
* so all this code runs outside Angular as well.
*/
_trapFocus(focusTrap, event) {
const target = event.target;
const focusTrapRoot = focusTrap._element;
if (target && !focusTrapRoot.contains(target) && !target.closest?.("div.cdk-overlay-pane")) {
setTimeout(() => {
if (focusTrap.enabled && !focusTrapRoot.contains(focusTrap._document.activeElement)) {
focusTrap.focusFirstTabbableElement();
}
});
}
}
};
var _FocusTrapManager = class _FocusTrapManager {
constructor() {
this._focusTrapStack = [];
}
/**
* Disables the FocusTrap at the top of the stack, and then pushes
* the new FocusTrap onto the stack.
*/
register(focusTrap) {
this._focusTrapStack = this._focusTrapStack.filter((ft) => ft !== focusTrap);
let stack = this._focusTrapStack;
if (stack.length) {
stack[stack.length - 1]._disable();
}
stack.push(focusTrap);
focusTrap._enable();
}
/**
* Removes the FocusTrap from the stack, and activates the
* FocusTrap that is the new top of the stack.
*/
deregister(focusTrap) {
focusTrap._disable();
const stack = this._focusTrapStack;
const i = stack.indexOf(focusTrap);
if (i !== -1) {
stack.splice(i, 1);
if (stack.length) {
stack[stack.length - 1]._enable();
}
}
}
};
_FocusTrapManager.ɵfac = function FocusTrapManager_Factory(t) {
return new (t || _FocusTrapManager)();
};
_FocusTrapManager.ɵprov = ɵɵdefineInjectable({
token: _FocusTrapManager,
factory: _FocusTrapManager.ɵfac,
providedIn: "root"
});
var FocusTrapManager = _FocusTrapManager;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(FocusTrapManager, [{
type: Injectable,
args: [{
providedIn: "root"
}]
}], null, null);
})();
var _ConfigurableFocusTrapFactory = class _ConfigurableFocusTrapFactory {
constructor(_checker, _ngZone, _focusTrapManager, _document, _inertStrategy) {
this._checker = _checker;
this._ngZone = _ngZone;
this._focusTrapManager = _focusTrapManager;
this._document = _document;
this._inertStrategy = _inertStrategy || new EventListenerFocusTrapInertStrategy();
}
create(element, config = {
defer: false
}) {
let configObject;
if (typeof config === "boolean") {
configObject = {
defer: config
};
} else {
configObject = config;
}
return new ConfigurableFocusTrap(element, this._checker, this._ngZone, this._document, this._focusTrapManager, this._inertStrategy, configObject);
}
};
_ConfigurableFocusTrapFactory.ɵfac = function ConfigurableFocusTrapFactory_Factory(t) {
return new (t || _ConfigurableFocusTrapFactory)(ɵɵinject(InteractivityChecker), ɵɵinject(NgZone), ɵɵinject(FocusTrapManager), ɵɵinject(DOCUMENT), ɵɵinject(FOCUS_TRAP_INERT_STRATEGY, 8));
};
_ConfigurableFocusTrapFactory.ɵprov = ɵɵdefineInjectable({
token: _ConfigurableFocusTrapFactory,
factory: _ConfigurableFocusTrapFactory.ɵfac,
providedIn: "root"
});
var ConfigurableFocusTrapFactory = _ConfigurableFocusTrapFactory;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(ConfigurableFocusTrapFactory, [{
type: Injectable,
args: [{
providedIn: "root"
}]
}], () => [{
type: InteractivityChecker
}, {
type: NgZone
}, {
type: FocusTrapManager
}, {
type: void 0,
decorators: [{
type: Inject,
args: [DOCUMENT]
}]
}, {
type: void 0,
decorators: [{
type: Optional
}, {
type: Inject,
args: [FOCUS_TRAP_INERT_STRATEGY]
}]
}], null);
})();
function isFakeMousedownFromScreenReader(event) {
return event.buttons === 0 || event.detail === 0;
}
function isFakeTouchstartFromScreenReader(event) {
const touch = event.touches && event.touches[0] || event.changedTouches && event.changedTouches[0];
return !!touch && touch.identifier === -1 && (touch.radiusX == null || touch.radiusX === 1) && (touch.radiusY == null || touch.radiusY === 1);
}
var INPUT_MODALITY_DETECTOR_OPTIONS = new InjectionToken("cdk-input-modality-detector-options");
var INPUT_MODALITY_DETECTOR_DEFAULT_OPTIONS = {
ignoreKeys: [ALT, CONTROL, MAC_META, META, SHIFT]
};
var TOUCH_BUFFER_MS = 650;
var modalityEventListenerOptions = normalizePassiveListenerOptions({
passive: true,
capture: true
});
var _InputModalityDetector = class _InputModalityDetector {
/** The most recently detected input modality. */
get mostRecentModality() {
return this._modality.value;
}
constructor(_platform, ngZone, document2, options) {
this._platform = _platform;
this._mostRecentTarget = null;
this._modality = new BehaviorSubject(null);
this._lastTouchMs = 0;
this._onKeydown = (event) => {
if (this._options?.ignoreKeys?.some((keyCode) => keyCode === event.keyCode)) {
return;
}
this._modality.next("keyboard");
this._mostRecentTarget = _getEventTarget(event);
};
this._onMousedown = (event) => {
if (Date.now() - this._lastTouchMs < TOUCH_BUFFER_MS) {
return;
}
this._modality.next(isFakeMousedownFromScreenReader(event) ? "keyboard" : "mouse");
this._mostRecentTarget = _getEventTarget(event);
};
this._onTouchstart = (event) => {
if (isFakeTouchstartFromScreenReader(event)) {
this._modality.next("keyboard");
return;
}
this._lastTouchMs = Date.now();
this._modality.next("touch");
this._mostRecentTarget = _getEventTarget(event);
};
this._options = __spreadValues(__spreadValues({}, INPUT_MODALITY_DETECTOR_DEFAULT_OPTIONS), options);
this.modalityDetected = this._modality.pipe(skip(1));
this.modalityChanged = this.modalityDetected.pipe(distinctUntilChanged());
if (_platform.isBrowser) {
ngZone.runOutsideAngular(() => {
document2.addEventListener("keydown", this._onKeydown, modalityEventListenerOptions);
document2.addEventListener("mousedown", this._onMousedown, modalityEventListenerOptions);
document2.addEventListener("touchstart", this._onTouchstart, modalityEventListenerOptions);
});
}
}
ngOnDestroy() {
this._modality.complete();
if (this._platform.isBrowser) {
document.removeEventListener("keydown", this._onKeydown, modalityEventListenerOptions);
document.removeEventListener("mousedown", this._onMousedown, modalityEventListenerOptions);
document.removeEventListener("touchstart", this._onTouchstart, modalityEventListenerOptions);
}
}
};
_InputModalityDetector.ɵfac = function InputModalityDetector_Factory(t) {
return new (t || _InputModalityDetector)(ɵɵinject(Platform), ɵɵinject(NgZone), ɵɵinject(DOCUMENT), ɵɵinject(INPUT_MODALITY_DETECTOR_OPTIONS, 8));
};
_InputModalityDetector.ɵprov = ɵɵdefineInjectable({
token: _InputModalityDetector,
factory: _InputModalityDetector.ɵfac,
providedIn: "root"
});
var InputModalityDetector = _InputModalityDetector;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(InputModalityDetector, [{
type: Injectable,
args: [{
providedIn: "root"
}]
}], () => [{
type: Platform
}, {
type: NgZone
}, {
type: Document,
decorators: [{
type: Inject,
args: [DOCUMENT]
}]
}, {
type: void 0,
decorators: [{
type: Optional
}, {
type: Inject,
args: [INPUT_MODALITY_DETECTOR_OPTIONS]
}]
}], null);
})();
var LIVE_ANNOUNCER_ELEMENT_TOKEN = new InjectionToken("liveAnnouncerElement", {
providedIn: "root",
factory: LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY
});
function LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY() {
return null;
}
var LIVE_ANNOUNCER_DEFAULT_OPTIONS = new InjectionToken("LIVE_ANNOUNCER_DEFAULT_OPTIONS");
var uniqueIds = 0;
var _LiveAnnouncer = class _LiveAnnouncer {
constructor(elementToken, _ngZone, _document, _defaultOptions) {
this._ngZone = _ngZone;
this._defaultOptions = _defaultOptions;
this._document = _document;
this._liveElement = elementToken || this._createLiveElement();
}
announce(message, ...args) {
const defaultOptions = this._defaultOptions;
let politeness;
let duration;
if (args.length === 1 && typeof args[0] === "number") {
duration = args[0];
} else {
[politeness, duration] = args;
}
this.clear();
clearTimeout(this._previousTimeout);
if (!politeness) {
politeness = defaultOptions && defaultOptions.politeness ? defaultOptions.politeness : "polite";
}
if (duration == null && defaultOptions) {
duration = defaultOptions.duration;
}
this._liveElement.setAttribute("aria-live", politeness);
if (this._liveElement.id) {
this._exposeAnnouncerToModals(this._liveElement.id);
}
return this._ngZone.runOutsideAngular(() => {
if (!this._currentPromise) {
this._currentPromise = new Promise((resolve) => this._currentResolve = resolve);
}
clearTimeout(this._previousTimeout);
this._previousTimeout = setTimeout(() => {
this._liveElement.textContent = message;
if (typeof duration === "number") {
this._previousTimeout = setTimeout(() => this.clear(), duration);
}
this._currentResolve();
this._currentPromise = this._currentResolve = void 0;
}, 100);
return this._currentPromise;
});
}
/**
* Clears the current text from the announcer element. Can be used to prevent
* screen readers from reading the text out again while the user is going
* through the page landmarks.
*/
clear() {
if (this._liveElement) {
this._liveElement.textContent = "";
}
}
ngOnDestroy() {
clearTimeout(this._previousTimeout);
this._liveElement?.remove();
this._liveElement = null;
this._currentResolve?.();
this._currentPromise = this._currentResolve = void 0;
}
_createLiveElement() {
const elementClass = "cdk-live-announcer-element";
const previousElements = this._document.getElementsByClassName(elementClass);
const liveEl = this._document.createElement("div");
for (let i = 0; i < previousElements.length; i++) {
previousElements[i].remove();
}
liveEl.classList.add(elementClass);
liveEl.classList.add("cdk-visually-hidden");
liveEl.setAttribute("aria-atomic", "true");
liveEl.setAttribute("aria-live", "polite");
liveEl.id = `cdk-live-announcer-${uniqueIds++}`;
this._document.body.appendChild(liveEl);
return liveEl;
}
/**
* Some browsers won't expose the accessibility node of the live announcer element if there is an
* `aria-modal` and the live announcer is outside of it. This method works around the issue by
* pointing the `aria-owns` of all modals to the live announcer element.
*/
_exposeAnnouncerToModals(id) {
const modals = this._document.querySelectorAll('body > .cdk-overlay-container [aria-modal="true"]');
for (let i = 0; i < modals.length; i++) {
const modal = modals[i];
const ariaOwns = modal.getAttribute("aria-owns");
if (!ariaOwns) {
modal.setAttribute("aria-owns", id);
} else if (ariaOwns.indexOf(id) === -1) {
modal.setAttribute("aria-owns", ariaOwns + " " + id);
}
}
}
};
_LiveAnnouncer.ɵfac = function LiveAnnouncer_Factory(t) {
return new (t || _LiveAnnouncer)(ɵɵinject(LIVE_ANNOUNCER_ELEMENT_TOKEN, 8), ɵɵinject(NgZone), ɵɵinject(DOCUMENT), ɵɵinject(LIVE_ANNOUNCER_DEFAULT_OPTIONS, 8));
};
_LiveAnnouncer.ɵprov = ɵɵdefineInjectable({
token: _LiveAnnouncer,
factory: _LiveAnnouncer.ɵfac,
providedIn: "root"
});
var LiveAnnouncer = _LiveAnnouncer;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(LiveAnnouncer, [{
type: Injectable,
args: [{
providedIn: "root"
}]
}], () => [{
type: void 0,
decorators: [{
type: Optional
}, {
type: Inject,
args: [LIVE_ANNOUNCER_ELEMENT_TOKEN]
}]
}, {
type: NgZone
}, {
type: void 0,
decorators: [{
type: Inject,
args: [DOCUMENT]
}]
}, {
type: void 0,
decorators: [{
type: Optional
}, {
type: Inject,
args: [LIVE_ANNOUNCER_DEFAULT_OPTIONS]
}]
}], null);
})();
var _CdkAriaLive = class _CdkAriaLive {
/** The aria-live politeness level to use when announcing messages. */
get politeness() {
return this._politeness;
}
set politeness(value) {
this._politeness = value === "off" || value === "assertive" ? value : "polite";
if (this._politeness === "off") {
if (this._subscription) {
this._subscription.unsubscribe();
this._subscription = null;
}
} else if (!this._subscription) {
this._subscription = this._ngZone.runOutsideAngular(() => {
return this._contentObserver.observe(this._elementRef).subscribe(() => {
const elementText = this._elementRef.nativeElement.textContent;
if (elementText !== this._previousAnnouncedText) {
this._liveAnnouncer.announce(elementText, this._politeness, this.duration);
this._previousAnnouncedText = elementText;
}
});
});
}
}
constructor(_elementRef, _liveAnnouncer, _contentObserver, _ngZone) {
this._elementRef = _elementRef;
this._liveAnnouncer = _liveAnnouncer;
this._contentObserver = _contentObserver;
this._ngZone = _ngZone;
this._politeness = "polite";
}
ngOnDestroy() {
if (this._subscription) {
this._subscription.unsubscribe();
}
}
};
_CdkAriaLive.ɵfac = function CdkAriaLive_Factory(t) {
return new (t || _CdkAriaLive)(ɵɵdirectiveInject(ElementRef), ɵɵdirectiveInject(LiveAnnouncer), ɵɵdirectiveInject(ContentObserver), ɵɵdirectiveInject(NgZone));
};
_CdkAriaLive.ɵdir = ɵɵdefineDirective({
type: _CdkAriaLive,
selectors: [["", "cdkAriaLive", ""]],
inputs: {
politeness: ["cdkAriaLive", "politeness"],
duration: ["cdkAriaLiveDuration", "duration"]
},
exportAs: ["cdkAriaLive"]
});
var CdkAriaLive = _CdkAriaLive;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(CdkAriaLive, [{
type: Directive,
args: [{
selector: "[cdkAriaLive]",
exportAs: "cdkAriaLive"
}]
}], () => [{
type: ElementRef
}, {
type: LiveAnnouncer
}, {
type: ContentObserver
}, {
type: NgZone
}], {
politeness: [{
type: Input,
args: ["cdkAriaLive"]
}],
duration: [{
type: Input,
args: ["cdkAriaLiveDuration"]
}]
});
})();
var FOCUS_MONITOR_DEFAULT_OPTIONS = new InjectionToken("cdk-focus-monitor-default-options");
var captureEventListenerOptions = normalizePassiveListenerOptions({
passive: true,
capture: true
});
var _FocusMonitor = class _FocusMonitor {
constructor(_ngZone, _platform, _inputModalityDetector, document2, options) {
this._ngZone = _ngZone;
this._platform = _platform;
this._inputModalityDetector = _inputModalityDetector;
this._origin = null;
this._windowFocused = false;
this._originFromTouchInteraction = false;
this._elementInfo = /* @__PURE__ */ new Map();
this._monitoredElementCount = 0;
this._rootNodeFocusListenerCount = /* @__PURE__ */ new Map();
this._windowFocusListener = () => {
this._windowFocused = true;
this._windowFocusTimeoutId = window.setTimeout(() => this._windowFocused = false);
};
this._stopInputModalityDetector = new Subject();
this._rootNodeFocusAndBlurListener = (event) => {
const target = _getEventTarget(event);
for (let element = target; element; element = element.parentElement) {
if (event.type === "focus") {
this._onFocus(event, element);
} else {
this._onBlur(event, element);
}
}
};
this._document = document2;
this._detectionMode = options?.detectionMode || 0;
}
monitor(element, checkChildren = false) {
const nativeElement = coerceElement(element);
if (!this._platform.isBrowser || nativeElement.nodeType !== 1) {
return of();
}
const rootNode = _getShadowRoot(nativeElement) || this._getDocument();
const cachedInfo = this._elementInfo.get(nativeElement);
if (cachedInfo) {
if (checkChildren) {
cachedInfo.checkChildren = true;
}
return cachedInfo.subject;
}
const info = {
checkChildren,
subject: new Subject(),
rootNode
};
this._elementInfo.set(nativeElement, info);
this._registerGlobalListeners(info);
return info.subject;
}
stopMonitoring(element) {
const nativeElement = coerceElement(element);
const elementInfo = this._elementInfo.get(nativeElement);
if (elementInfo) {
elementInfo.subject.complete();
this._setClasses(nativeElement);
this._elementInfo.delete(nativeElement);
this._removeGlobalListeners(elementInfo);
}
}
focusVia(element, origin, options) {
const nativeElement = coerceElement(element);
const focusedElement = this._getDocument().activeElement;
if (nativeElement === focusedElement) {
this._getClosestElementsInfo(nativeElement).forEach(([currentElement, info]) => this._originChanged(currentElement, origin, info));
} else {
this._setOrigin(origin);
if (typeof nativeElement.focus === "function") {
nativeElement.focus(options);
}
}
}
ngOnDestroy() {
this._elementInfo.forEach((_info, element) => this.stopMonitoring(element));
}
/** Access injected document if available or fallback to global document reference */
_getDocument() {
return this._document || document;
}
/** Use defaultView of injected document if available or fallback to global window reference */
_getWindow() {
const doc = this._getDocument();
return doc.defaultView || window;
}
_getFocusOrigin(focusEventTarget) {
if (this._origin) {
if (this._originFromTouchInteraction) {
return this._shouldBeAttributedToTouch(focusEventTarget) ? "touch" : "program";
} else {
return this._origin;
}
}
if (this._windowFocused && this._lastFocusOrigin) {
return this._lastFocusOrigin;
}
if (focusEventTarget && this._isLastInteractionFromInputLabel(focusEventTarget)) {
return "mouse";
}
return "program";
}
/**
* Returns whether the focus event should be attributed to touch. Recall that in IMMEDIATE mode, a
* touch origin isn't immediately reset at the next tick (see _setOrigin). This means that when we
* handle a focus event following a touch interaction, we need to determine whether (1) the focus
* event was directly caused by the touch interaction or (2) the focus event was caused by a
* subsequent programmatic focus call triggered by the touch interaction.
* @param focusEventTarget The target of the focus event under examination.
*/
_shouldBeAttributedToTouch(focusEventTarget) {
return this._detectionMode === 1 || !!focusEventTarget?.contains(this._inputModalityDetector._mostRecentTarget);
}
/**
* Sets the focus classes on the element based on the given focus origin.
* @param element The element to update the classes on.
* @param origin The focus origin.
*/
_setClasses(element, origin) {
element.classList.toggle("cdk-focused", !!origin);
element.classList.toggle("cdk-touch-focused", origin === "touch");
element.classList.toggle("cdk-keyboard-focused", origin === "keyboard");
element.classList.toggle("cdk-mouse-focused", origin === "mouse");
element.classList.toggle("cdk-program-focused", origin === "program");
}
/**
* Updates the focus origin. If we're using immediate detection mode, we schedule an async
* function to clear the origin at the end of a timeout. The duration of the timeout depends on
* the origin being set.
* @param origin The origin to set.
* @param isFromInteraction Whether we are setting the origin from an interaction event.
*/
_setOrigin(origin, isFromInteraction = false) {
this._ngZone.runOutsideAngular(() => {
this._origin = origin;
this._originFromTouchInteraction = origin === "touch" && isFromInteraction;
if (this._detectionMode === 0) {
clearTimeout(this._originTimeoutId);
const ms = this._originFromTouchInteraction ? TOUCH_BUFFER_MS : 1;
this._originTimeoutId = setTimeout(() => this._origin = null, ms);
}
});
}
/**
* Handles focus events on a registered element.
* @param event The focus event.
* @param element The monitored element.
*/
_onFocus(event, element) {
const elementInfo = this._elementInfo.get(element);
const focusEventTarget = _getEventTarget(event);
if (!elementInfo || !elementInfo.checkChildren && element !== focusEventTarget) {
return;
}
this._originChanged(element, this._getFocusOrigin(focusEventTarget), elementInfo);
}
/**
* Handles blur events on a registered element.
* @param event The blur event.
* @param element The monitored element.
*/
_onBlur(event, element) {
const elementInfo = this._elementInfo.get(element);
if (!elementInfo || elementInfo.checkChildren && event.relatedTarget instanceof Node && element.contains(event.relatedTarget)) {
return;
}
this._setClasses(element);
this._emitOrigin(elementInfo, null);
}
_emitOrigin(info, origin) {
if (info.subject.observers.length) {
this._ngZone.run(() => info.subject.next(origin));
}
}
_registerGlobalListeners(elementInfo) {
if (!this._platform.isBrowser) {
return;
}
const rootNode = elementInfo.rootNode;
const rootNodeFocusListeners = this._rootNodeFocusListenerCount.get(rootNode) || 0;
if (!rootNodeFocusListeners) {
this._ngZone.runOutsideAngular(() => {
rootNode.addEventListener("focus", this._rootNodeFocusAndBlurListener, captureEventListenerOptions);
rootNode.addEventListener("blur", this._rootNodeFocusAndBlurListener, captureEventListenerOptions);
});
}
this._rootNodeFocusListenerCount.set(rootNode, rootNodeFocusListeners + 1);
if (++this._monitoredElementCount === 1) {
this._ngZone.runOutsideAngular(() => {
const window2 = this._getWindow();
window2.addEventListener("focus", this._windowFocusListener);
});
this._inputModalityDetector.modalityDetected.pipe(takeUntil(this._stopInputModalityDetector)).subscribe((modality) => {
this._setOrigin(
modality,
true
/* isFromInteraction */
);
});
}
}
_removeGlobalListeners(elementInfo) {
const rootNode = elementInfo.rootNode;
if (this._rootNodeFocusListenerCount.has(rootNode)) {
const rootNodeFocusListeners = this._rootNodeFocusListenerCount.get(rootNode);
if (rootNodeFocusListeners > 1) {
this._rootNodeFocusListenerCount.set(rootNode, rootNodeFocusListeners - 1);
} else {
rootNode.removeEventListener("focus", this._rootNodeFocusAndBlurListener, captureEventListenerOptions);
rootNode.removeEventListener("blur", this._rootNodeFocusAndBlurListener, captureEventListenerOptions);
this._rootNodeFocusListenerCount.delete(rootNode);
}
}
if (!--this._monitoredElementCount) {
const window2 = this._getWindow();
window2.removeEventListener("focus", this._windowFocusListener);
this._stopInputModalityDetector.next();
clearTimeout(this._windowFocusTimeoutId);
clearTimeout(this._originTimeoutId);
}
}
/** Updates all the state on an element once its focus origin has changed. */
_originChanged(element, origin, elementInfo) {
this._setClasses(element, origin);
this._emitOrigin(elementInfo, origin);
this._lastFocusOrigin = origin;
}
/**
* Collects the `MonitoredElementInfo` of a particular element and
* all of its ancestors that have enabled `checkChildren`.
* @param element Element from which to start the search.
*/
_getClosestElementsInfo(element) {
const results = [];
this._elementInfo.forEach((info, currentElement) => {
if (currentElement === element || info.checkChildren && currentElement.contains(element)) {
results.push([currentElement, info]);
}
});
return results;
}
/**
* Returns whether an interaction is likely to have come from the user clicking the `label` of
* an `input` or `textarea` in order to focus it.
* @param focusEventTarget Target currently receiving focus.
*/
_isLastInteractionFromInputLabel(focusEventTarget) {
const {
_mostRecentTarget: mostRecentTarget,
mostRecentModality
} = this._inputModalityDetector;
if (mostRecentModality !== "mouse" || !mostRecentTarget || mostRecentTarget === focusEventTarget || focusEventTarget.nodeName !== "INPUT" && focusEventTarget.nodeName !== "TEXTAREA" || focusEventTarget.disabled) {
return false;
}
const labels = focusEventTarget.labels;
if (labels) {
for (let i = 0; i < labels.length; i++) {
if (labels[i].contains(mostRecentTarget)) {
return true;
}
}
}
return false;
}
};
_FocusMonitor.ɵfac = function FocusMonitor_Factory(t) {
return new (t || _FocusMonitor)(ɵɵinject(NgZone), ɵɵinject(Platform), ɵɵinject(InputModalityDetector), ɵɵinject(DOCUMENT, 8), ɵɵinject(FOCUS_MONITOR_DEFAULT_OPTIONS, 8));
};
_FocusMonitor.ɵprov = ɵɵdefineInjectable({
token: _FocusMonitor,
factory: _FocusMonitor.ɵfac,
providedIn: "root"
});
var FocusMonitor = _FocusMonitor;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(FocusMonitor, [{
type: Injectable,
args: [{
providedIn: "root"
}]
}], () => [{
type: NgZone
}, {
type: Platform
}, {
type: InputModalityDetector
}, {
type: void 0,
decorators: [{
type: Optional
}, {
type: Inject,
args: [DOCUMENT]
}]
}, {
type: void 0,
decorators: [{
type: Optional
}, {
type: Inject,
args: [FOCUS_MONITOR_DEFAULT_OPTIONS]
}]
}], null);
})();
var _CdkMonitorFocus = class _CdkMonitorFocus {
constructor(_elementRef, _focusMonitor) {
this._elementRef = _elementRef;
this._focusMonitor = _focusMonitor;
this._focusOrigin = null;
this.cdkFocusChange = new EventEmitter();
}
get focusOrigin() {
return this._focusOrigin;
}
ngAfterViewInit() {
const element = this._elementRef.nativeElement;
this._monitorSubscription = this._focusMonitor.monitor(element, element.nodeType === 1 && element.hasAttribute("cdkMonitorSubtreeFocus")).subscribe((origin) => {
this._focusOrigin = origin;
this.cdkFocusChange.emit(origin);
});
}
ngOnDestroy() {
this._focusMonitor.stopMonitoring(this._elementRef);
if (this._monitorSubscription) {
this._monitorSubscription.unsubscribe();
}
}
};
_CdkMonitorFocus.ɵfac = function CdkMonitorFocus_Factory(t) {
return new (t || _CdkMonitorFocus)(ɵɵdirectiveInject(ElementRef), ɵɵdirectiveInject(FocusMonitor));
};
_CdkMonitorFocus.ɵdir = ɵɵdefineDirective({
type: _CdkMonitorFocus,
selectors: [["", "cdkMonitorElementFocus", ""], ["", "cdkMonitorSubtreeFocus", ""]],
outputs: {
cdkFocusChange: "cdkFocusChange"
},
exportAs: ["cdkMonitorFocus"]
});
var CdkMonitorFocus = _CdkMonitorFocus;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(CdkMonitorFocus, [{
type: Directive,
args: [{
selector: "[cdkMonitorElementFocus], [cdkMonitorSubtreeFocus]",
exportAs: "cdkMonitorFocus"
}]
}], () => [{
type: ElementRef
}, {
type: FocusMonitor
}], {
cdkFocusChange: [{
type: Output
}]
});
})();
var BLACK_ON_WHITE_CSS_CLASS = "cdk-high-contrast-black-on-white";
var WHITE_ON_BLACK_CSS_CLASS = "cdk-high-contrast-white-on-black";
var HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS = "cdk-high-contrast-active";
var _HighContrastModeDetector = class _HighContrastModeDetector {
constructor(_platform, document2) {
this._platform = _platform;
this._document = document2;
this._breakpointSubscription = inject(BreakpointObserver).observe("(forced-colors: active)").subscribe(() => {
if (this._hasCheckedHighContrastMode) {
this._hasCheckedHighContrastMode = false;
this._applyBodyHighContrastModeCssClasses();
}
});
}
/** Gets the current high-contrast-mode for the page. */
getHighContrastMode() {
if (!this._platform.isBrowser) {
return 0;
}
const testElement = this._document.createElement("div");
testElement.style.backgroundColor = "rgb(1,2,3)";
testElement.style.position = "absolute";
this._document.body.appendChild(testElement);
const documentWindow = this._document.defaultView || window;
const computedStyle = documentWindow && documentWindow.getComputedStyle ? documentWindow.getComputedStyle(testElement) : null;
const computedColor = (computedStyle && computedStyle.backgroundColor || "").replace(/ /g, "");
testElement.remove();
switch (computedColor) {
case "rgb(0,0,0)":
case "rgb(45,50,54)":
case "rgb(32,32,32)":
return 2;
case "rgb(255,255,255)":
case "rgb(255,250,239)":
return 1;
}
return 0;
}
ngOnDestroy() {
this._breakpointSubscription.unsubscribe();
}
/** Applies CSS classes indicating high-contrast mode to document body (browser-only). */
_applyBodyHighContrastModeCssClasses() {
if (!this._hasCheckedHighContrastMode && this._platform.isBrowser && this._document.body) {
const bodyClasses = this._document.body.classList;
bodyClasses.remove(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS, BLACK_ON_WHITE_CSS_CLASS, WHITE_ON_BLACK_CSS_CLASS);
this._hasCheckedHighContrastMode = true;
const mode = this.getHighContrastMode();
if (mode === 1) {
bodyClasses.add(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS, BLACK_ON_WHITE_CSS_CLASS);
} else if (mode === 2) {
bodyClasses.add(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS, WHITE_ON_BLACK_CSS_CLASS);
}
}
}
};
_HighContrastModeDetector.ɵfac = function HighContrastModeDetector_Factory(t) {
return new (t || _HighContrastModeDetector)(ɵɵinject(Platform), ɵɵinject(DOCUMENT));
};
_HighContrastModeDetector.ɵprov = ɵɵdefineInjectable({
token: _HighContrastModeDetector,
factory: _HighContrastModeDetector.ɵfac,
providedIn: "root"
});
var HighContrastModeDetector = _HighContrastModeDetector;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(HighContrastModeDetector, [{
type: Injectable,
args: [{
providedIn: "root"
}]
}], () => [{
type: Platform
}, {
type: void 0,
decorators: [{
type: Inject,
args: [DOCUMENT]
}]
}], null);
})();
var _A11yModule = class _A11yModule {
constructor(highContrastModeDetector) {
highContrastModeDetector._applyBodyHighContrastModeCssClasses();
}
};
_A11yModule.ɵfac = function A11yModule_Factory(t) {
return new (t || _A11yModule)(ɵɵinject(HighContrastModeDetector));
};
_A11yModule.ɵmod = ɵɵdefineNgModule({
type: _A11yModule,
declarations: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus],
imports: [ObserversModule],
exports: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus]
});
_A11yModule.ɵinj = ɵɵdefineInjector({
imports: [ObserversModule]
});
var A11yModule = _A11yModule;
(() => {
(typeof ngDevMode === "undefined" || ngDevMode) && setClassMetadata(A11yModule, [{
type: NgModule,
args: [{
imports: [ObserversModule],
declarations: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus],
exports: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus]
}]
}], () => [{
type: HighContrastModeDetector
}], null);
})();
export {
FocusMonitor
};
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