{"ast":null,"code":"import { SPACE, BACKSPACE, DELETE, TAB, hasModifierKey, ENTER } from '@angular/cdk/keycodes';\nimport * as i0 from '@angular/core';\nimport { InjectionToken, Directive, EventEmitter, Optional, Inject, Attribute, ContentChild, Input, Output, Component, ViewEncapsulation, ChangeDetectionStrategy, Self, ContentChildren, NgModule } from '@angular/core';\nimport * as i3 from '@angular/material/core';\nimport { mixinTabIndex, mixinColor, mixinDisableRipple, RippleRenderer, MAT_RIPPLE_GLOBAL_OPTIONS, mixinErrorState, MatCommonModule, ErrorStateMatcher } from '@angular/material/core';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { DOCUMENT } from '@angular/common';\nimport { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';\nimport { Subject, merge } from 'rxjs';\nimport { take, takeUntil, startWith } from 'rxjs/operators';\nimport * as i1 from '@angular/cdk/platform';\nimport { FocusKeyManager } from '@angular/cdk/a11y';\nimport { SelectionModel } from '@angular/cdk/collections';\nimport * as i2 from '@angular/forms';\nimport { Validators } from '@angular/forms';\nimport { MatFormFieldControl } from '@angular/material/form-field';\nimport * as i1$1 from '@angular/cdk/bidi';\n/** Event object emitted by MatChip when selected or deselected. */\n\nconst _c0 = [\"*\"];\n\nclass MatChipSelectionChange {\n constructor(\n /** Reference to the chip that emitted the event. */\n source,\n /** Whether the chip that emitted the event is selected. */\n selected,\n /** Whether the selection change was a result of a user interaction. */\n isUserInput = false) {\n this.source = source;\n this.selected = selected;\n this.isUserInput = isUserInput;\n }\n\n}\n/**\n * Injection token that can be used to reference instances of `MatChipRemove`. It serves as\n * alternative token to the actual `MatChipRemove` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\n\n\nconst MAT_CHIP_REMOVE = new InjectionToken('MatChipRemove');\n/**\n * Injection token that can be used to reference instances of `MatChipAvatar`. It serves as\n * alternative token to the actual `MatChipAvatar` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\n\nconst MAT_CHIP_AVATAR = new InjectionToken('MatChipAvatar');\n/**\n * Injection token that can be used to reference instances of `MatChipTrailingIcon`. It serves as\n * alternative token to the actual `MatChipTrailingIcon` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\n\nconst MAT_CHIP_TRAILING_ICON = new InjectionToken('MatChipTrailingIcon'); // Boilerplate for applying mixins to MatChip.\n\n/** @docs-private */\n\nclass MatChipBase {\n constructor(_elementRef) {\n this._elementRef = _elementRef;\n }\n\n}\n\nconst _MatChipMixinBase = mixinTabIndex(mixinColor(mixinDisableRipple(MatChipBase), 'primary'), -1);\n/**\n * Dummy directive to add CSS class to chip avatar.\n * @docs-private\n */\n\n\nclass MatChipAvatar {}\n\nMatChipAvatar.ɵfac = function MatChipAvatar_Factory(t) {\n return new (t || MatChipAvatar)();\n};\n\nMatChipAvatar.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: MatChipAvatar,\n selectors: [[\"mat-chip-avatar\"], [\"\", \"matChipAvatar\", \"\"]],\n hostAttrs: [1, \"mat-chip-avatar\"],\n features: [i0.ɵɵProvidersFeature([{\n provide: MAT_CHIP_AVATAR,\n useExisting: MatChipAvatar\n }])]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(MatChipAvatar, [{\n type: Directive,\n args: [{\n selector: 'mat-chip-avatar, [matChipAvatar]',\n host: {\n 'class': 'mat-chip-avatar'\n },\n providers: [{\n provide: MAT_CHIP_AVATAR,\n useExisting: MatChipAvatar\n }]\n }]\n }], null, null);\n})();\n/**\n * Dummy directive to add CSS class to chip trailing icon.\n * @docs-private\n */\n\n\nclass MatChipTrailingIcon {}\n\nMatChipTrailingIcon.ɵfac = function MatChipTrailingIcon_Factory(t) {\n return new (t || MatChipTrailingIcon)();\n};\n\nMatChipTrailingIcon.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: MatChipTrailingIcon,\n selectors: [[\"mat-chip-trailing-icon\"], [\"\", \"matChipTrailingIcon\", \"\"]],\n hostAttrs: [1, \"mat-chip-trailing-icon\"],\n features: [i0.ɵɵProvidersFeature([{\n provide: MAT_CHIP_TRAILING_ICON,\n useExisting: MatChipTrailingIcon\n }])]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(MatChipTrailingIcon, [{\n type: Directive,\n args: [{\n selector: 'mat-chip-trailing-icon, [matChipTrailingIcon]',\n host: {\n 'class': 'mat-chip-trailing-icon'\n },\n providers: [{\n provide: MAT_CHIP_TRAILING_ICON,\n useExisting: MatChipTrailingIcon\n }]\n }]\n }], null, null);\n})();\n/**\n * Material design styled Chip component. Used inside the MatChipList component.\n */\n\n\nclass MatChip extends _MatChipMixinBase {\n constructor(elementRef, _ngZone, platform, globalRippleOptions, _changeDetectorRef, _document, animationMode, tabIndex) {\n super(elementRef);\n this._ngZone = _ngZone;\n this._changeDetectorRef = _changeDetectorRef;\n /** Whether the chip has focus. */\n\n this._hasFocus = false;\n /** Whether the chip list is selectable */\n\n this.chipListSelectable = true;\n /** Whether the chip list is in multi-selection mode. */\n\n this._chipListMultiple = false;\n /** Whether the chip list as a whole is disabled. */\n\n this._chipListDisabled = false;\n this._selected = false;\n this._selectable = true;\n this._disabled = false;\n this._removable = true;\n /** Emits when the chip is focused. */\n\n this._onFocus = new Subject();\n /** Emits when the chip is blured. */\n\n this._onBlur = new Subject();\n /** Emitted when the chip is selected or deselected. */\n\n this.selectionChange = new EventEmitter();\n /** Emitted when the chip is destroyed. */\n\n this.destroyed = new EventEmitter();\n /** Emitted when a chip is to be removed. */\n\n this.removed = new EventEmitter();\n\n this._addHostClassName(); // Dynamically create the ripple target, append it within the chip, and use it as the\n // chip's ripple target. Adding the class '.mat-chip-ripple' ensures that it will have\n // the proper styles.\n\n\n this._chipRippleTarget = _document.createElement('div');\n\n this._chipRippleTarget.classList.add('mat-chip-ripple');\n\n this._elementRef.nativeElement.appendChild(this._chipRippleTarget);\n\n this._chipRipple = new RippleRenderer(this, _ngZone, this._chipRippleTarget, platform);\n\n this._chipRipple.setupTriggerEvents(elementRef);\n\n this.rippleConfig = globalRippleOptions || {};\n this._animationsDisabled = animationMode === 'NoopAnimations';\n this.tabIndex = tabIndex != null ? parseInt(tabIndex) || -1 : -1;\n }\n /**\n * Whether ripples are disabled on interaction\n * @docs-private\n */\n\n\n get rippleDisabled() {\n return this.disabled || this.disableRipple || this._animationsDisabled || !!this.rippleConfig.disabled;\n }\n /** Whether the chip is selected. */\n\n\n get selected() {\n return this._selected;\n }\n\n set selected(value) {\n const coercedValue = coerceBooleanProperty(value);\n\n if (coercedValue !== this._selected) {\n this._selected = coercedValue;\n\n this._dispatchSelectionChange();\n }\n }\n /** The value of the chip. Defaults to the content inside `` tags. */\n\n\n get value() {\n return this._value !== undefined ? this._value : this._elementRef.nativeElement.textContent;\n }\n\n set value(value) {\n this._value = value;\n }\n /**\n * Whether or not the chip is selectable. When a chip is not selectable,\n * changes to its selected state are always ignored. By default a chip is\n * selectable, and it becomes non-selectable if its parent chip list is\n * not selectable.\n */\n\n\n get selectable() {\n return this._selectable && this.chipListSelectable;\n }\n\n set selectable(value) {\n this._selectable = coerceBooleanProperty(value);\n }\n /** Whether the chip is disabled. */\n\n\n get disabled() {\n return this._chipListDisabled || this._disabled;\n }\n\n set disabled(value) {\n this._disabled = coerceBooleanProperty(value);\n }\n /**\n * Determines whether or not the chip displays the remove styling and emits (removed) events.\n */\n\n\n get removable() {\n return this._removable;\n }\n\n set removable(value) {\n this._removable = coerceBooleanProperty(value);\n }\n /** The ARIA selected applied to the chip. */\n\n\n get ariaSelected() {\n // Remove the `aria-selected` when the chip is deselected in single-selection mode, because\n // it adds noise to NVDA users where \"not selected\" will be read out for each chip.\n return this.selectable && (this._chipListMultiple || this.selected) ? this.selected.toString() : null;\n }\n\n _addHostClassName() {\n const basicChipAttrName = 'mat-basic-chip';\n const element = this._elementRef.nativeElement;\n\n if (element.hasAttribute(basicChipAttrName) || element.tagName.toLowerCase() === basicChipAttrName) {\n element.classList.add(basicChipAttrName);\n return;\n } else {\n element.classList.add('mat-standard-chip');\n }\n }\n\n ngOnDestroy() {\n this.destroyed.emit({\n chip: this\n });\n\n this._chipRipple._removeTriggerEvents();\n }\n /** Selects the chip. */\n\n\n select() {\n if (!this._selected) {\n this._selected = true;\n\n this._dispatchSelectionChange();\n\n this._changeDetectorRef.markForCheck();\n }\n }\n /** Deselects the chip. */\n\n\n deselect() {\n if (this._selected) {\n this._selected = false;\n\n this._dispatchSelectionChange();\n\n this._changeDetectorRef.markForCheck();\n }\n }\n /** Select this chip and emit selected event */\n\n\n selectViaInteraction() {\n if (!this._selected) {\n this._selected = true;\n\n this._dispatchSelectionChange(true);\n\n this._changeDetectorRef.markForCheck();\n }\n }\n /** Toggles the current selected state of this chip. */\n\n\n toggleSelected(isUserInput = false) {\n this._selected = !this.selected;\n\n this._dispatchSelectionChange(isUserInput);\n\n this._changeDetectorRef.markForCheck();\n\n return this.selected;\n }\n /** Allows for programmatic focusing of the chip. */\n\n\n focus() {\n if (!this._hasFocus) {\n this._elementRef.nativeElement.focus();\n\n this._onFocus.next({\n chip: this\n });\n }\n\n this._hasFocus = true;\n }\n /**\n * Allows for programmatic removal of the chip. Called by the MatChipList when the DELETE or\n * BACKSPACE keys are pressed.\n *\n * Informs any listeners of the removal request. Does not remove the chip from the DOM.\n */\n\n\n remove() {\n if (this.removable) {\n this.removed.emit({\n chip: this\n });\n }\n }\n /** Handles click events on the chip. */\n\n\n _handleClick(event) {\n if (this.disabled) {\n event.preventDefault();\n } else {\n event.stopPropagation();\n }\n }\n /** Handle custom key presses. */\n\n\n _handleKeydown(event) {\n if (this.disabled) {\n return;\n }\n\n switch (event.keyCode) {\n case DELETE:\n case BACKSPACE:\n // If we are removable, remove the focused chip\n this.remove(); // Always prevent so page navigation does not occur\n\n event.preventDefault();\n break;\n\n case SPACE:\n // If we are selectable, toggle the focused chip\n if (this.selectable) {\n this.toggleSelected(true);\n } // Always prevent space from scrolling the page since the list has focus\n\n\n event.preventDefault();\n break;\n }\n }\n\n _blur() {\n // When animations are enabled, Angular may end up removing the chip from the DOM a little\n // earlier than usual, causing it to be blurred and throwing off the logic in the chip list\n // that moves focus not the next item. To work around the issue, we defer marking the chip\n // as not focused until the next time the zone stabilizes.\n this._ngZone.onStable.pipe(take(1)).subscribe(() => {\n this._ngZone.run(() => {\n this._hasFocus = false;\n\n this._onBlur.next({\n chip: this\n });\n });\n });\n }\n\n _dispatchSelectionChange(isUserInput = false) {\n this.selectionChange.emit({\n source: this,\n isUserInput,\n selected: this._selected\n });\n }\n\n}\n\nMatChip.ɵfac = function MatChip_Factory(t) {\n return new (t || MatChip)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(i0.NgZone), i0.ɵɵdirectiveInject(i1.Platform), i0.ɵɵdirectiveInject(MAT_RIPPLE_GLOBAL_OPTIONS, 8), i0.ɵɵdirectiveInject(i0.ChangeDetectorRef), i0.ɵɵdirectiveInject(DOCUMENT), i0.ɵɵdirectiveInject(ANIMATION_MODULE_TYPE, 8), i0.ɵɵinjectAttribute('tabindex'));\n};\n\nMatChip.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: MatChip,\n selectors: [[\"mat-basic-chip\"], [\"\", \"mat-basic-chip\", \"\"], [\"mat-chip\"], [\"\", \"mat-chip\", \"\"]],\n contentQueries: function MatChip_ContentQueries(rf, ctx, dirIndex) {\n if (rf & 1) {\n i0.ɵɵcontentQuery(dirIndex, MAT_CHIP_AVATAR, 5);\n i0.ɵɵcontentQuery(dirIndex, MAT_CHIP_TRAILING_ICON, 5);\n i0.ɵɵcontentQuery(dirIndex, MAT_CHIP_REMOVE, 5);\n }\n\n if (rf & 2) {\n let _t;\n\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx.avatar = _t.first);\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx.trailingIcon = _t.first);\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx.removeIcon = _t.first);\n }\n },\n hostAttrs: [\"role\", \"option\", 1, \"mat-chip\", \"mat-focus-indicator\"],\n hostVars: 14,\n hostBindings: function MatChip_HostBindings(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵlistener(\"click\", function MatChip_click_HostBindingHandler($event) {\n return ctx._handleClick($event);\n })(\"keydown\", function MatChip_keydown_HostBindingHandler($event) {\n return ctx._handleKeydown($event);\n })(\"focus\", function MatChip_focus_HostBindingHandler() {\n return ctx.focus();\n })(\"blur\", function MatChip_blur_HostBindingHandler() {\n return ctx._blur();\n });\n }\n\n if (rf & 2) {\n i0.ɵɵattribute(\"tabindex\", ctx.disabled ? null : ctx.tabIndex)(\"disabled\", ctx.disabled || null)(\"aria-disabled\", ctx.disabled.toString())(\"aria-selected\", ctx.ariaSelected);\n i0.ɵɵclassProp(\"mat-chip-selected\", ctx.selected)(\"mat-chip-with-avatar\", ctx.avatar)(\"mat-chip-with-trailing-icon\", ctx.trailingIcon || ctx.removeIcon)(\"mat-chip-disabled\", ctx.disabled)(\"_mat-animation-noopable\", ctx._animationsDisabled);\n }\n },\n inputs: {\n color: \"color\",\n disableRipple: \"disableRipple\",\n tabIndex: \"tabIndex\",\n selected: \"selected\",\n value: \"value\",\n selectable: \"selectable\",\n disabled: \"disabled\",\n removable: \"removable\"\n },\n outputs: {\n selectionChange: \"selectionChange\",\n destroyed: \"destroyed\",\n removed: \"removed\"\n },\n exportAs: [\"matChip\"],\n features: [i0.ɵɵInheritDefinitionFeature]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(MatChip, [{\n type: Directive,\n args: [{\n selector: `mat-basic-chip, [mat-basic-chip], mat-chip, [mat-chip]`,\n inputs: ['color', 'disableRipple', 'tabIndex'],\n exportAs: 'matChip',\n host: {\n 'class': 'mat-chip mat-focus-indicator',\n '[attr.tabindex]': 'disabled ? null : tabIndex',\n 'role': 'option',\n '[class.mat-chip-selected]': 'selected',\n '[class.mat-chip-with-avatar]': 'avatar',\n '[class.mat-chip-with-trailing-icon]': 'trailingIcon || removeIcon',\n '[class.mat-chip-disabled]': 'disabled',\n '[class._mat-animation-noopable]': '_animationsDisabled',\n '[attr.disabled]': 'disabled || null',\n '[attr.aria-disabled]': 'disabled.toString()',\n '[attr.aria-selected]': 'ariaSelected',\n '(click)': '_handleClick($event)',\n '(keydown)': '_handleKeydown($event)',\n '(focus)': 'focus()',\n '(blur)': '_blur()'\n }\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }, {\n type: i0.NgZone\n }, {\n type: i1.Platform\n }, {\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [MAT_RIPPLE_GLOBAL_OPTIONS]\n }]\n }, {\n type: i0.ChangeDetectorRef\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [ANIMATION_MODULE_TYPE]\n }]\n }, {\n type: undefined,\n decorators: [{\n type: Attribute,\n args: ['tabindex']\n }]\n }];\n }, {\n avatar: [{\n type: ContentChild,\n args: [MAT_CHIP_AVATAR]\n }],\n trailingIcon: [{\n type: ContentChild,\n args: [MAT_CHIP_TRAILING_ICON]\n }],\n removeIcon: [{\n type: ContentChild,\n args: [MAT_CHIP_REMOVE]\n }],\n selected: [{\n type: Input\n }],\n value: [{\n type: Input\n }],\n selectable: [{\n type: Input\n }],\n disabled: [{\n type: Input\n }],\n removable: [{\n type: Input\n }],\n selectionChange: [{\n type: Output\n }],\n destroyed: [{\n type: Output\n }],\n removed: [{\n type: Output\n }]\n });\n})();\n/**\n * Applies proper (click) support and adds styling for use with the Material Design \"cancel\" icon\n * available at https://material.io/icons/#ic_cancel.\n *\n * Example:\n *\n * `\n * cancel\n * `\n *\n * You *may* use a custom icon, but you may need to override the `mat-chip-remove` positioning\n * styles to properly center the icon within the chip.\n */\n\n\nclass MatChipRemove {\n constructor(_parentChip, elementRef) {\n this._parentChip = _parentChip;\n\n if (elementRef.nativeElement.nodeName === 'BUTTON') {\n elementRef.nativeElement.setAttribute('type', 'button');\n }\n }\n /** Calls the parent chip's public `remove()` method if applicable. */\n\n\n _handleClick(event) {\n const parentChip = this._parentChip;\n\n if (parentChip.removable && !parentChip.disabled) {\n parentChip.remove();\n } // We need to stop event propagation because otherwise the event will bubble up to the\n // form field and cause the `onContainerClick` method to be invoked. This method would then\n // reset the focused chip that has been focused after chip removal. Usually the parent\n // the parent click listener of the `MatChip` would prevent propagation, but it can happen\n // that the chip is being removed before the event bubbles up.\n\n\n event.stopPropagation();\n }\n\n}\n\nMatChipRemove.ɵfac = function MatChipRemove_Factory(t) {\n return new (t || MatChipRemove)(i0.ɵɵdirectiveInject(MatChip), i0.ɵɵdirectiveInject(i0.ElementRef));\n};\n\nMatChipRemove.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: MatChipRemove,\n selectors: [[\"\", \"matChipRemove\", \"\"]],\n hostAttrs: [1, \"mat-chip-remove\", \"mat-chip-trailing-icon\"],\n hostBindings: function MatChipRemove_HostBindings(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵlistener(\"click\", function MatChipRemove_click_HostBindingHandler($event) {\n return ctx._handleClick($event);\n });\n }\n },\n features: [i0.ɵɵProvidersFeature([{\n provide: MAT_CHIP_REMOVE,\n useExisting: MatChipRemove\n }])]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(MatChipRemove, [{\n type: Directive,\n args: [{\n selector: '[matChipRemove]',\n host: {\n 'class': 'mat-chip-remove mat-chip-trailing-icon',\n '(click)': '_handleClick($event)'\n },\n providers: [{\n provide: MAT_CHIP_REMOVE,\n useExisting: MatChipRemove\n }]\n }]\n }], function () {\n return [{\n type: MatChip\n }, {\n type: i0.ElementRef\n }];\n }, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/** Injection token to be used to override the default options for the chips module. */\n\n\nconst MAT_CHIPS_DEFAULT_OPTIONS = new InjectionToken('mat-chips-default-options');\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// Increasing integer for generating unique ids.\n\nlet nextUniqueId$1 = 0;\n/**\n * Directive that adds chip-specific behaviors to an input element inside ``.\n * May be placed inside or outside of an ``.\n */\n\nclass MatChipInput {\n constructor(_elementRef, _defaultOptions) {\n this._elementRef = _elementRef;\n this._defaultOptions = _defaultOptions;\n /** Whether the control is focused. */\n\n this.focused = false;\n this._addOnBlur = false;\n /**\n * The list of key codes that will trigger a chipEnd event.\n *\n * Defaults to `[ENTER]`.\n */\n\n this.separatorKeyCodes = this._defaultOptions.separatorKeyCodes;\n /** Emitted when a chip is to be added. */\n\n this.chipEnd = new EventEmitter();\n /** The input's placeholder text. */\n\n this.placeholder = '';\n /** Unique id for the input. */\n\n this.id = `mat-chip-list-input-${nextUniqueId$1++}`;\n this._disabled = false;\n this.inputElement = this._elementRef.nativeElement;\n }\n /** Register input for chip list */\n\n\n set chipList(value) {\n if (value) {\n this._chipList = value;\n\n this._chipList.registerInput(this);\n }\n }\n /**\n * Whether or not the chipEnd event will be emitted when the input is blurred.\n */\n\n\n get addOnBlur() {\n return this._addOnBlur;\n }\n\n set addOnBlur(value) {\n this._addOnBlur = coerceBooleanProperty(value);\n }\n /** Whether the input is disabled. */\n\n\n get disabled() {\n return this._disabled || this._chipList && this._chipList.disabled;\n }\n\n set disabled(value) {\n this._disabled = coerceBooleanProperty(value);\n }\n /** Whether the input is empty. */\n\n\n get empty() {\n return !this.inputElement.value;\n }\n\n ngOnChanges() {\n this._chipList.stateChanges.next();\n }\n\n ngOnDestroy() {\n this.chipEnd.complete();\n }\n\n ngAfterContentInit() {\n this._focusLastChipOnBackspace = this.empty;\n }\n /** Utility method to make host definition/tests more clear. */\n\n\n _keydown(event) {\n if (event) {\n // Allow the user's focus to escape when they're tabbing forward. Note that we don't\n // want to do this when going backwards, because focus should go back to the first chip.\n if (event.keyCode === TAB && !hasModifierKey(event, 'shiftKey')) {\n this._chipList._allowFocusEscape();\n } // To prevent the user from accidentally deleting chips when pressing BACKSPACE continuously,\n // We focus the last chip on backspace only after the user has released the backspace button,\n // and the input is empty (see behaviour in _keyup)\n\n\n if (event.keyCode === BACKSPACE && this._focusLastChipOnBackspace) {\n this._chipList._keyManager.setLastItemActive();\n\n event.preventDefault();\n return;\n } else {\n this._focusLastChipOnBackspace = false;\n }\n }\n\n this._emitChipEnd(event);\n }\n /**\n * Pass events to the keyboard manager. Available here for tests.\n */\n\n\n _keyup(event) {\n // Allow user to move focus to chips next time he presses backspace\n if (!this._focusLastChipOnBackspace && event.keyCode === BACKSPACE && this.empty) {\n this._focusLastChipOnBackspace = true;\n event.preventDefault();\n }\n }\n /** Checks to see if the blur should emit the (chipEnd) event. */\n\n\n _blur() {\n if (this.addOnBlur) {\n this._emitChipEnd();\n }\n\n this.focused = false; // Blur the chip list if it is not focused\n\n if (!this._chipList.focused) {\n this._chipList._blur();\n }\n\n this._chipList.stateChanges.next();\n }\n\n _focus() {\n this.focused = true;\n this._focusLastChipOnBackspace = this.empty;\n\n this._chipList.stateChanges.next();\n }\n /** Checks to see if the (chipEnd) event needs to be emitted. */\n\n\n _emitChipEnd(event) {\n if (!this.inputElement.value && !!event) {\n this._chipList._keydown(event);\n }\n\n if (!event || this._isSeparatorKey(event)) {\n this.chipEnd.emit({\n input: this.inputElement,\n value: this.inputElement.value,\n chipInput: this\n });\n event === null || event === void 0 ? void 0 : event.preventDefault();\n }\n }\n\n _onInput() {\n // Let chip list know whenever the value changes.\n this._chipList.stateChanges.next();\n }\n /** Focuses the input. */\n\n\n focus(options) {\n this.inputElement.focus(options);\n }\n /** Clears the input */\n\n\n clear() {\n this.inputElement.value = '';\n this._focusLastChipOnBackspace = true;\n }\n /** Checks whether a keycode is one of the configured separators. */\n\n\n _isSeparatorKey(event) {\n return !hasModifierKey(event) && new Set(this.separatorKeyCodes).has(event.keyCode);\n }\n\n}\n\nMatChipInput.ɵfac = function MatChipInput_Factory(t) {\n return new (t || MatChipInput)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(MAT_CHIPS_DEFAULT_OPTIONS));\n};\n\nMatChipInput.ɵdir = /* @__PURE__ */i0.ɵɵdefineDirective({\n type: MatChipInput,\n selectors: [[\"input\", \"matChipInputFor\", \"\"]],\n hostAttrs: [1, \"mat-chip-input\", \"mat-input-element\"],\n hostVars: 5,\n hostBindings: function MatChipInput_HostBindings(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵlistener(\"keydown\", function MatChipInput_keydown_HostBindingHandler($event) {\n return ctx._keydown($event);\n })(\"keyup\", function MatChipInput_keyup_HostBindingHandler($event) {\n return ctx._keyup($event);\n })(\"blur\", function MatChipInput_blur_HostBindingHandler() {\n return ctx._blur();\n })(\"focus\", function MatChipInput_focus_HostBindingHandler() {\n return ctx._focus();\n })(\"input\", function MatChipInput_input_HostBindingHandler() {\n return ctx._onInput();\n });\n }\n\n if (rf & 2) {\n i0.ɵɵhostProperty(\"id\", ctx.id);\n i0.ɵɵattribute(\"disabled\", ctx.disabled || null)(\"placeholder\", ctx.placeholder || null)(\"aria-invalid\", ctx._chipList && ctx._chipList.ngControl ? ctx._chipList.ngControl.invalid : null)(\"aria-required\", ctx._chipList && ctx._chipList.required || null);\n }\n },\n inputs: {\n chipList: [\"matChipInputFor\", \"chipList\"],\n addOnBlur: [\"matChipInputAddOnBlur\", \"addOnBlur\"],\n separatorKeyCodes: [\"matChipInputSeparatorKeyCodes\", \"separatorKeyCodes\"],\n placeholder: \"placeholder\",\n id: \"id\",\n disabled: \"disabled\"\n },\n outputs: {\n chipEnd: \"matChipInputTokenEnd\"\n },\n exportAs: [\"matChipInput\", \"matChipInputFor\"],\n features: [i0.ɵɵNgOnChangesFeature]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(MatChipInput, [{\n type: Directive,\n args: [{\n selector: 'input[matChipInputFor]',\n exportAs: 'matChipInput, matChipInputFor',\n host: {\n 'class': 'mat-chip-input mat-input-element',\n '(keydown)': '_keydown($event)',\n '(keyup)': '_keyup($event)',\n '(blur)': '_blur()',\n '(focus)': '_focus()',\n '(input)': '_onInput()',\n '[id]': 'id',\n '[attr.disabled]': 'disabled || null',\n '[attr.placeholder]': 'placeholder || null',\n '[attr.aria-invalid]': '_chipList && _chipList.ngControl ? _chipList.ngControl.invalid : null',\n '[attr.aria-required]': '_chipList && _chipList.required || null'\n }\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [MAT_CHIPS_DEFAULT_OPTIONS]\n }]\n }];\n }, {\n chipList: [{\n type: Input,\n args: ['matChipInputFor']\n }],\n addOnBlur: [{\n type: Input,\n args: ['matChipInputAddOnBlur']\n }],\n separatorKeyCodes: [{\n type: Input,\n args: ['matChipInputSeparatorKeyCodes']\n }],\n chipEnd: [{\n type: Output,\n args: ['matChipInputTokenEnd']\n }],\n placeholder: [{\n type: Input\n }],\n id: [{\n type: Input\n }],\n disabled: [{\n type: Input\n }]\n });\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// Boilerplate for applying mixins to MatChipList.\n\n/** @docs-private */\n\n\nconst _MatChipListBase = mixinErrorState(class {\n constructor(_defaultErrorStateMatcher, _parentForm, _parentFormGroup,\n /** @docs-private */\n ngControl) {\n this._defaultErrorStateMatcher = _defaultErrorStateMatcher;\n this._parentForm = _parentForm;\n this._parentFormGroup = _parentFormGroup;\n this.ngControl = ngControl;\n }\n\n}); // Increasing integer for generating unique ids for chip-list components.\n\n\nlet nextUniqueId = 0;\n/** Change event object that is emitted when the chip list value has changed. */\n\nclass MatChipListChange {\n constructor(\n /** Chip list that emitted the event. */\n source,\n /** Value of the chip list when the event was emitted. */\n value) {\n this.source = source;\n this.value = value;\n }\n\n}\n/**\n * A material design chips component (named ChipList for its similarity to the List component).\n */\n\n\nclass MatChipList extends _MatChipListBase {\n constructor(_elementRef, _changeDetectorRef, _dir, _parentForm, _parentFormGroup, _defaultErrorStateMatcher, ngControl) {\n super(_defaultErrorStateMatcher, _parentForm, _parentFormGroup, ngControl);\n this._elementRef = _elementRef;\n this._changeDetectorRef = _changeDetectorRef;\n this._dir = _dir;\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n\n this.controlType = 'mat-chip-list';\n /**\n * When a chip is destroyed, we store the index of the destroyed chip until the chips\n * query list notifies about the update. This is necessary because we cannot determine an\n * appropriate chip that should receive focus until the array of chips updated completely.\n */\n\n this._lastDestroyedChipIndex = null;\n /** Subject that emits when the component has been destroyed. */\n\n this._destroyed = new Subject();\n /** Uid of the chip list */\n\n this._uid = `mat-chip-list-${nextUniqueId++}`;\n /** Tab index for the chip list. */\n\n this._tabIndex = 0;\n /**\n * User defined tab index.\n * When it is not null, use user defined tab index. Otherwise use _tabIndex\n */\n\n this._userTabIndex = null;\n /** Function when touched */\n\n this._onTouched = () => {};\n /** Function when changed */\n\n\n this._onChange = () => {};\n\n this._multiple = false;\n\n this._compareWith = (o1, o2) => o1 === o2;\n\n this._disabled = false;\n /** Orientation of the chip list. */\n\n this.ariaOrientation = 'horizontal';\n this._selectable = true;\n /** Event emitted when the selected chip list value has been changed by the user. */\n\n this.change = new EventEmitter();\n /**\n * Event that emits whenever the raw value of the chip-list changes. This is here primarily\n * to facilitate the two-way binding for the `value` input.\n * @docs-private\n */\n\n this.valueChange = new EventEmitter();\n\n if (this.ngControl) {\n this.ngControl.valueAccessor = this;\n }\n }\n /** The array of selected chips inside chip list. */\n\n\n get selected() {\n var _a, _b;\n\n return this.multiple ? ((_a = this._selectionModel) === null || _a === void 0 ? void 0 : _a.selected) || [] : (_b = this._selectionModel) === null || _b === void 0 ? void 0 : _b.selected[0];\n }\n /** The ARIA role applied to the chip list. */\n\n\n get role() {\n return this.empty ? null : 'listbox';\n }\n /** Whether the user should be allowed to select multiple chips. */\n\n\n get multiple() {\n return this._multiple;\n }\n\n set multiple(value) {\n this._multiple = coerceBooleanProperty(value);\n\n this._syncChipsState();\n }\n /**\n * A function to compare the option values with the selected values. The first argument\n * is a value from an option. The second is a value from the selection. A boolean\n * should be returned.\n */\n\n\n get compareWith() {\n return this._compareWith;\n }\n\n set compareWith(fn) {\n this._compareWith = fn;\n\n if (this._selectionModel) {\n // A different comparator means the selection could change.\n this._initializeSelection();\n }\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n\n\n get value() {\n return this._value;\n }\n\n set value(value) {\n this.writeValue(value);\n this._value = value;\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n\n\n get id() {\n return this._chipInput ? this._chipInput.id : this._uid;\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n\n\n get required() {\n var _a, _b, _c, _d;\n\n return (_d = (_a = this._required) !== null && _a !== void 0 ? _a : (_c = (_b = this.ngControl) === null || _b === void 0 ? void 0 : _b.control) === null || _c === void 0 ? void 0 : _c.hasValidator(Validators.required)) !== null && _d !== void 0 ? _d : false;\n }\n\n set required(value) {\n this._required = coerceBooleanProperty(value);\n this.stateChanges.next();\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n\n\n get placeholder() {\n return this._chipInput ? this._chipInput.placeholder : this._placeholder;\n }\n\n set placeholder(value) {\n this._placeholder = value;\n this.stateChanges.next();\n }\n /** Whether any chips or the matChipInput inside of this chip-list has focus. */\n\n\n get focused() {\n return this._chipInput && this._chipInput.focused || this._hasFocusedChip();\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n\n\n get empty() {\n return (!this._chipInput || this._chipInput.empty) && (!this.chips || this.chips.length === 0);\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n\n\n get shouldLabelFloat() {\n return !this.empty || this.focused;\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n\n\n get disabled() {\n return this.ngControl ? !!this.ngControl.disabled : this._disabled;\n }\n\n set disabled(value) {\n this._disabled = coerceBooleanProperty(value);\n\n this._syncChipsState();\n }\n /**\n * Whether or not this chip list is selectable. When a chip list is not selectable,\n * the selected states for all the chips inside the chip list are always ignored.\n */\n\n\n get selectable() {\n return this._selectable;\n }\n\n set selectable(value) {\n this._selectable = coerceBooleanProperty(value);\n\n if (this.chips) {\n this.chips.forEach(chip => chip.chipListSelectable = this._selectable);\n }\n }\n\n set tabIndex(value) {\n this._userTabIndex = value;\n this._tabIndex = value;\n }\n /** Combined stream of all of the child chips' selection change events. */\n\n\n get chipSelectionChanges() {\n return merge(...this.chips.map(chip => chip.selectionChange));\n }\n /** Combined stream of all of the child chips' focus change events. */\n\n\n get chipFocusChanges() {\n return merge(...this.chips.map(chip => chip._onFocus));\n }\n /** Combined stream of all of the child chips' blur change events. */\n\n\n get chipBlurChanges() {\n return merge(...this.chips.map(chip => chip._onBlur));\n }\n /** Combined stream of all of the child chips' remove change events. */\n\n\n get chipRemoveChanges() {\n return merge(...this.chips.map(chip => chip.destroyed));\n }\n\n ngAfterContentInit() {\n this._keyManager = new FocusKeyManager(this.chips).withWrap().withVerticalOrientation().withHomeAndEnd().withHorizontalOrientation(this._dir ? this._dir.value : 'ltr');\n\n if (this._dir) {\n this._dir.change.pipe(takeUntil(this._destroyed)).subscribe(dir => this._keyManager.withHorizontalOrientation(dir));\n }\n\n this._keyManager.tabOut.pipe(takeUntil(this._destroyed)).subscribe(() => {\n this._allowFocusEscape();\n }); // When the list changes, re-subscribe\n\n\n this.chips.changes.pipe(startWith(null), takeUntil(this._destroyed)).subscribe(() => {\n if (this.disabled) {\n // Since this happens after the content has been\n // checked, we need to defer it to the next tick.\n Promise.resolve().then(() => {\n this._syncChipsState();\n });\n }\n\n this._resetChips(); // Reset chips selected/deselected status\n\n\n this._initializeSelection(); // Check to see if we need to update our tab index\n\n\n this._updateTabIndex(); // Check to see if we have a destroyed chip and need to refocus\n\n\n this._updateFocusForDestroyedChips();\n\n this.stateChanges.next();\n });\n }\n\n ngOnInit() {\n this._selectionModel = new SelectionModel(this.multiple, undefined, false);\n this.stateChanges.next();\n }\n\n ngDoCheck() {\n if (this.ngControl) {\n // We need to re-evaluate this on every change detection cycle, because there are some\n // error triggers that we can't subscribe to (e.g. parent form submissions). This means\n // that whatever logic is in here has to be super lean or we risk destroying the performance.\n this.updateErrorState();\n\n if (this.ngControl.disabled !== this._disabled) {\n this.disabled = !!this.ngControl.disabled;\n }\n }\n }\n\n ngOnDestroy() {\n this._destroyed.next();\n\n this._destroyed.complete();\n\n this.stateChanges.complete();\n\n this._dropSubscriptions();\n }\n /** Associates an HTML input element with this chip list. */\n\n\n registerInput(inputElement) {\n this._chipInput = inputElement; // We use this attribute to match the chip list to its input in test harnesses.\n // Set the attribute directly here to avoid \"changed after checked\" errors.\n\n this._elementRef.nativeElement.setAttribute('data-mat-chip-input', inputElement.id);\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n\n\n setDescribedByIds(ids) {\n this._ariaDescribedby = ids.join(' ');\n } // Implemented as part of ControlValueAccessor.\n\n\n writeValue(value) {\n if (this.chips) {\n this._setSelectionByValue(value, false);\n }\n } // Implemented as part of ControlValueAccessor.\n\n\n registerOnChange(fn) {\n this._onChange = fn;\n } // Implemented as part of ControlValueAccessor.\n\n\n registerOnTouched(fn) {\n this._onTouched = fn;\n } // Implemented as part of ControlValueAccessor.\n\n\n setDisabledState(isDisabled) {\n this.disabled = isDisabled;\n this.stateChanges.next();\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n\n\n onContainerClick(event) {\n if (!this._originatesFromChip(event)) {\n this.focus();\n }\n }\n /**\n * Focuses the first non-disabled chip in this chip list, or the associated input when there\n * are no eligible chips.\n */\n\n\n focus(options) {\n if (this.disabled) {\n return;\n } // TODO: ARIA says this should focus the first `selected` chip if any are selected.\n // Focus on first element if there's no chipInput inside chip-list\n\n\n if (this._chipInput && this._chipInput.focused) {// do nothing\n } else if (this.chips.length > 0) {\n this._keyManager.setFirstItemActive();\n\n this.stateChanges.next();\n } else {\n this._focusInput(options);\n\n this.stateChanges.next();\n }\n }\n /** Attempt to focus an input if we have one. */\n\n\n _focusInput(options) {\n if (this._chipInput) {\n this._chipInput.focus(options);\n }\n }\n /**\n * Pass events to the keyboard manager. Available here for tests.\n */\n\n\n _keydown(event) {\n const target = event.target;\n\n if (target && target.classList.contains('mat-chip')) {\n this._keyManager.onKeydown(event);\n\n this.stateChanges.next();\n }\n }\n /**\n * Check the tab index as you should not be allowed to focus an empty list.\n */\n\n\n _updateTabIndex() {\n // If we have 0 chips, we should not allow keyboard focus\n this._tabIndex = this._userTabIndex || (this.chips.length === 0 ? -1 : 0);\n }\n /**\n * If the amount of chips changed, we need to update the\n * key manager state and focus the next closest chip.\n */\n\n\n _updateFocusForDestroyedChips() {\n // Move focus to the closest chip. If no other chips remain, focus the chip-list itself.\n if (this._lastDestroyedChipIndex != null) {\n if (this.chips.length) {\n const newChipIndex = Math.min(this._lastDestroyedChipIndex, this.chips.length - 1);\n\n this._keyManager.setActiveItem(newChipIndex);\n } else {\n this.focus();\n }\n }\n\n this._lastDestroyedChipIndex = null;\n }\n /**\n * Utility to ensure all indexes are valid.\n *\n * @param index The index to be checked.\n * @returns True if the index is valid for our list of chips.\n */\n\n\n _isValidIndex(index) {\n return index >= 0 && index < this.chips.length;\n }\n\n _setSelectionByValue(value, isUserInput = true) {\n this._clearSelection();\n\n this.chips.forEach(chip => chip.deselect());\n\n if (Array.isArray(value)) {\n value.forEach(currentValue => this._selectValue(currentValue, isUserInput));\n\n this._sortValues();\n } else {\n const correspondingChip = this._selectValue(value, isUserInput); // Shift focus to the active item. Note that we shouldn't do this in multiple\n // mode, because we don't know what chip the user interacted with last.\n\n\n if (correspondingChip) {\n if (isUserInput) {\n this._keyManager.setActiveItem(correspondingChip);\n }\n }\n }\n }\n /**\n * Finds and selects the chip based on its value.\n * @returns Chip that has the corresponding value.\n */\n\n\n _selectValue(value, isUserInput = true) {\n const correspondingChip = this.chips.find(chip => {\n return chip.value != null && this._compareWith(chip.value, value);\n });\n\n if (correspondingChip) {\n isUserInput ? correspondingChip.selectViaInteraction() : correspondingChip.select();\n\n this._selectionModel.select(correspondingChip);\n }\n\n return correspondingChip;\n }\n\n _initializeSelection() {\n // Defer setting the value in order to avoid the \"Expression\n // has changed after it was checked\" errors from Angular.\n Promise.resolve().then(() => {\n if (this.ngControl || this._value) {\n this._setSelectionByValue(this.ngControl ? this.ngControl.value : this._value, false);\n\n this.stateChanges.next();\n }\n });\n }\n /**\n * Deselects every chip in the list.\n * @param skip Chip that should not be deselected.\n */\n\n\n _clearSelection(skip) {\n this._selectionModel.clear();\n\n this.chips.forEach(chip => {\n if (chip !== skip) {\n chip.deselect();\n }\n });\n this.stateChanges.next();\n }\n /**\n * Sorts the model values, ensuring that they keep the same\n * order that they have in the panel.\n */\n\n\n _sortValues() {\n if (this._multiple) {\n this._selectionModel.clear();\n\n this.chips.forEach(chip => {\n if (chip.selected) {\n this._selectionModel.select(chip);\n }\n });\n this.stateChanges.next();\n }\n }\n /** Emits change event to set the model value. */\n\n\n _propagateChanges(fallbackValue) {\n let valueToEmit = null;\n\n if (Array.isArray(this.selected)) {\n valueToEmit = this.selected.map(chip => chip.value);\n } else {\n valueToEmit = this.selected ? this.selected.value : fallbackValue;\n }\n\n this._value = valueToEmit;\n this.change.emit(new MatChipListChange(this, valueToEmit));\n this.valueChange.emit(valueToEmit);\n\n this._onChange(valueToEmit);\n\n this._changeDetectorRef.markForCheck();\n }\n /** When blurred, mark the field as touched when focus moved outside the chip list. */\n\n\n _blur() {\n if (!this._hasFocusedChip()) {\n this._keyManager.setActiveItem(-1);\n }\n\n if (!this.disabled) {\n if (this._chipInput) {\n // If there's a chip input, we should check whether the focus moved to chip input.\n // If the focus is not moved to chip input, mark the field as touched. If the focus moved\n // to chip input, do nothing.\n // Timeout is needed to wait for the focus() event trigger on chip input.\n setTimeout(() => {\n if (!this.focused) {\n this._markAsTouched();\n }\n });\n } else {\n // If there's no chip input, then mark the field as touched.\n this._markAsTouched();\n }\n }\n }\n /** Mark the field as touched */\n\n\n _markAsTouched() {\n this._onTouched();\n\n this._changeDetectorRef.markForCheck();\n\n this.stateChanges.next();\n }\n /**\n * Removes the `tabindex` from the chip list and resets it back afterwards, allowing the\n * user to tab out of it. This prevents the list from capturing focus and redirecting\n * it back to the first chip, creating a focus trap, if it user tries to tab away.\n */\n\n\n _allowFocusEscape() {\n if (this._tabIndex !== -1) {\n this._tabIndex = -1;\n setTimeout(() => {\n this._tabIndex = this._userTabIndex || 0;\n\n this._changeDetectorRef.markForCheck();\n });\n }\n }\n\n _resetChips() {\n this._dropSubscriptions();\n\n this._listenToChipsFocus();\n\n this._listenToChipsSelection();\n\n this._listenToChipsRemoved();\n }\n\n _dropSubscriptions() {\n if (this._chipFocusSubscription) {\n this._chipFocusSubscription.unsubscribe();\n\n this._chipFocusSubscription = null;\n }\n\n if (this._chipBlurSubscription) {\n this._chipBlurSubscription.unsubscribe();\n\n this._chipBlurSubscription = null;\n }\n\n if (this._chipSelectionSubscription) {\n this._chipSelectionSubscription.unsubscribe();\n\n this._chipSelectionSubscription = null;\n }\n\n if (this._chipRemoveSubscription) {\n this._chipRemoveSubscription.unsubscribe();\n\n this._chipRemoveSubscription = null;\n }\n }\n /** Listens to user-generated selection events on each chip. */\n\n\n _listenToChipsSelection() {\n this._chipSelectionSubscription = this.chipSelectionChanges.subscribe(event => {\n event.source.selected ? this._selectionModel.select(event.source) : this._selectionModel.deselect(event.source); // For single selection chip list, make sure the deselected value is unselected.\n\n if (!this.multiple) {\n this.chips.forEach(chip => {\n if (!this._selectionModel.isSelected(chip) && chip.selected) {\n chip.deselect();\n }\n });\n }\n\n if (event.isUserInput) {\n this._propagateChanges();\n }\n });\n }\n /** Listens to user-generated selection events on each chip. */\n\n\n _listenToChipsFocus() {\n this._chipFocusSubscription = this.chipFocusChanges.subscribe(event => {\n let chipIndex = this.chips.toArray().indexOf(event.chip);\n\n if (this._isValidIndex(chipIndex)) {\n this._keyManager.updateActiveItem(chipIndex);\n }\n\n this.stateChanges.next();\n });\n this._chipBlurSubscription = this.chipBlurChanges.subscribe(() => {\n this._blur();\n\n this.stateChanges.next();\n });\n }\n\n _listenToChipsRemoved() {\n this._chipRemoveSubscription = this.chipRemoveChanges.subscribe(event => {\n const chip = event.chip;\n const chipIndex = this.chips.toArray().indexOf(event.chip); // In case the chip that will be removed is currently focused, we temporarily store\n // the index in order to be able to determine an appropriate sibling chip that will\n // receive focus.\n\n if (this._isValidIndex(chipIndex) && chip._hasFocus) {\n this._lastDestroyedChipIndex = chipIndex;\n }\n });\n }\n /** Checks whether an event comes from inside a chip element. */\n\n\n _originatesFromChip(event) {\n let currentElement = event.target;\n\n while (currentElement && currentElement !== this._elementRef.nativeElement) {\n if (currentElement.classList.contains('mat-chip')) {\n return true;\n }\n\n currentElement = currentElement.parentElement;\n }\n\n return false;\n }\n /** Checks whether any of the chips is focused. */\n\n\n _hasFocusedChip() {\n return this.chips && this.chips.some(chip => chip._hasFocus);\n }\n /** Syncs the list's state with the individual chips. */\n\n\n _syncChipsState() {\n if (this.chips) {\n this.chips.forEach(chip => {\n chip._chipListDisabled = this._disabled;\n chip._chipListMultiple = this.multiple;\n });\n }\n }\n\n}\n\nMatChipList.ɵfac = function MatChipList_Factory(t) {\n return new (t || MatChipList)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(i0.ChangeDetectorRef), i0.ɵɵdirectiveInject(i1$1.Directionality, 8), i0.ɵɵdirectiveInject(i2.NgForm, 8), i0.ɵɵdirectiveInject(i2.FormGroupDirective, 8), i0.ɵɵdirectiveInject(i3.ErrorStateMatcher), i0.ɵɵdirectiveInject(i2.NgControl, 10));\n};\n\nMatChipList.ɵcmp = /* @__PURE__ */i0.ɵɵdefineComponent({\n type: MatChipList,\n selectors: [[\"mat-chip-list\"]],\n contentQueries: function MatChipList_ContentQueries(rf, ctx, dirIndex) {\n if (rf & 1) {\n i0.ɵɵcontentQuery(dirIndex, MatChip, 5);\n }\n\n if (rf & 2) {\n let _t;\n\n i0.ɵɵqueryRefresh(_t = i0.ɵɵloadQuery()) && (ctx.chips = _t);\n }\n },\n hostAttrs: [1, \"mat-chip-list\"],\n hostVars: 15,\n hostBindings: function MatChipList_HostBindings(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵlistener(\"focus\", function MatChipList_focus_HostBindingHandler() {\n return ctx.focus();\n })(\"blur\", function MatChipList_blur_HostBindingHandler() {\n return ctx._blur();\n })(\"keydown\", function MatChipList_keydown_HostBindingHandler($event) {\n return ctx._keydown($event);\n });\n }\n\n if (rf & 2) {\n i0.ɵɵhostProperty(\"id\", ctx._uid);\n i0.ɵɵattribute(\"tabindex\", ctx.disabled ? null : ctx._tabIndex)(\"aria-describedby\", ctx._ariaDescribedby || null)(\"aria-required\", ctx.role ? ctx.required : null)(\"aria-disabled\", ctx.disabled.toString())(\"aria-invalid\", ctx.errorState)(\"aria-multiselectable\", ctx.multiple)(\"role\", ctx.role)(\"aria-orientation\", ctx.ariaOrientation);\n i0.ɵɵclassProp(\"mat-chip-list-disabled\", ctx.disabled)(\"mat-chip-list-invalid\", ctx.errorState)(\"mat-chip-list-required\", ctx.required);\n }\n },\n inputs: {\n errorStateMatcher: \"errorStateMatcher\",\n multiple: \"multiple\",\n compareWith: \"compareWith\",\n value: \"value\",\n required: \"required\",\n placeholder: \"placeholder\",\n disabled: \"disabled\",\n ariaOrientation: [\"aria-orientation\", \"ariaOrientation\"],\n selectable: \"selectable\",\n tabIndex: \"tabIndex\"\n },\n outputs: {\n change: \"change\",\n valueChange: \"valueChange\"\n },\n exportAs: [\"matChipList\"],\n features: [i0.ɵɵProvidersFeature([{\n provide: MatFormFieldControl,\n useExisting: MatChipList\n }]), i0.ɵɵInheritDefinitionFeature],\n ngContentSelectors: _c0,\n decls: 2,\n vars: 0,\n consts: [[1, \"mat-chip-list-wrapper\"]],\n template: function MatChipList_Template(rf, ctx) {\n if (rf & 1) {\n i0.ɵɵprojectionDef();\n i0.ɵɵelementStart(0, \"div\", 0);\n i0.ɵɵprojection(1);\n i0.ɵɵelementEnd();\n }\n },\n styles: [\".mat-chip{position:relative;box-sizing:border-box;-webkit-tap-highlight-color:transparent;transform:translateZ(0);border:none;-webkit-appearance:none;-moz-appearance:none}.mat-standard-chip{transition:box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);display:inline-flex;padding:7px 12px;border-radius:16px;align-items:center;cursor:default;min-height:32px;height:1px}._mat-animation-noopable.mat-standard-chip{transition:none;animation:none}.mat-standard-chip .mat-chip-remove{border:none;-webkit-appearance:none;-moz-appearance:none;padding:0;background:none}.mat-standard-chip .mat-chip-remove.mat-icon,.mat-standard-chip .mat-chip-remove .mat-icon{width:18px;height:18px;font-size:18px}.mat-standard-chip::after{top:0;left:0;right:0;bottom:0;position:absolute;border-radius:inherit;opacity:0;content:\\\"\\\";pointer-events:none;transition:opacity 200ms cubic-bezier(0.35, 0, 0.25, 1)}.mat-standard-chip:hover::after{opacity:.12}.mat-standard-chip:focus{outline:none}.mat-standard-chip:focus::after{opacity:.16}.cdk-high-contrast-active .mat-standard-chip{outline:solid 1px}.cdk-high-contrast-active .mat-standard-chip:focus{outline:dotted 2px}.cdk-high-contrast-active .mat-standard-chip.mat-chip-selected{outline-width:3px}.mat-standard-chip.mat-chip-disabled::after{opacity:0}.mat-standard-chip.mat-chip-disabled .mat-chip-remove,.mat-standard-chip.mat-chip-disabled .mat-chip-trailing-icon{cursor:default}.mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar,.mat-standard-chip.mat-chip-with-avatar{padding-top:0;padding-bottom:0}.mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar{padding-right:8px;padding-left:0}[dir=rtl] .mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar{padding-left:8px;padding-right:0}.mat-standard-chip.mat-chip-with-trailing-icon{padding-top:7px;padding-bottom:7px;padding-right:8px;padding-left:12px}[dir=rtl] .mat-standard-chip.mat-chip-with-trailing-icon{padding-left:8px;padding-right:12px}.mat-standard-chip.mat-chip-with-avatar{padding-left:0;padding-right:12px}[dir=rtl] .mat-standard-chip.mat-chip-with-avatar{padding-right:0;padding-left:12px}.mat-standard-chip .mat-chip-avatar{width:24px;height:24px;margin-right:8px;margin-left:4px}[dir=rtl] .mat-standard-chip .mat-chip-avatar{margin-left:8px;margin-right:4px}.mat-standard-chip .mat-chip-remove,.mat-standard-chip .mat-chip-trailing-icon{width:18px;height:18px;cursor:pointer}.mat-standard-chip .mat-chip-remove,.mat-standard-chip .mat-chip-trailing-icon{margin-left:8px;margin-right:0}[dir=rtl] .mat-standard-chip .mat-chip-remove,[dir=rtl] .mat-standard-chip .mat-chip-trailing-icon{margin-right:8px;margin-left:0}.mat-chip-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none;border-radius:inherit;overflow:hidden}.mat-chip-list-wrapper{display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;margin:-4px}.mat-chip-list-wrapper input.mat-input-element,.mat-chip-list-wrapper .mat-standard-chip{margin:4px}.mat-chip-list-stacked .mat-chip-list-wrapper{flex-direction:column;align-items:flex-start}.mat-chip-list-stacked .mat-chip-list-wrapper .mat-standard-chip{width:100%}.mat-chip-avatar{border-radius:50%;justify-content:center;align-items:center;display:flex;overflow:hidden;object-fit:cover}input.mat-chip-input{width:150px;margin:4px;flex:1 0 150px}\\n\"],\n encapsulation: 2,\n changeDetection: 0\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(MatChipList, [{\n type: Component,\n args: [{\n selector: 'mat-chip-list',\n template: `
`,\n exportAs: 'matChipList',\n host: {\n '[attr.tabindex]': 'disabled ? null : _tabIndex',\n '[attr.aria-describedby]': '_ariaDescribedby || null',\n '[attr.aria-required]': 'role ? required : null',\n '[attr.aria-disabled]': 'disabled.toString()',\n '[attr.aria-invalid]': 'errorState',\n '[attr.aria-multiselectable]': 'multiple',\n '[attr.role]': 'role',\n '[class.mat-chip-list-disabled]': 'disabled',\n '[class.mat-chip-list-invalid]': 'errorState',\n '[class.mat-chip-list-required]': 'required',\n '[attr.aria-orientation]': 'ariaOrientation',\n 'class': 'mat-chip-list',\n '(focus)': 'focus()',\n '(blur)': '_blur()',\n '(keydown)': '_keydown($event)',\n '[id]': '_uid'\n },\n providers: [{\n provide: MatFormFieldControl,\n useExisting: MatChipList\n }],\n encapsulation: ViewEncapsulation.None,\n changeDetection: ChangeDetectionStrategy.OnPush,\n styles: [\".mat-chip{position:relative;box-sizing:border-box;-webkit-tap-highlight-color:transparent;transform:translateZ(0);border:none;-webkit-appearance:none;-moz-appearance:none}.mat-standard-chip{transition:box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);display:inline-flex;padding:7px 12px;border-radius:16px;align-items:center;cursor:default;min-height:32px;height:1px}._mat-animation-noopable.mat-standard-chip{transition:none;animation:none}.mat-standard-chip .mat-chip-remove{border:none;-webkit-appearance:none;-moz-appearance:none;padding:0;background:none}.mat-standard-chip .mat-chip-remove.mat-icon,.mat-standard-chip .mat-chip-remove .mat-icon{width:18px;height:18px;font-size:18px}.mat-standard-chip::after{top:0;left:0;right:0;bottom:0;position:absolute;border-radius:inherit;opacity:0;content:\\\"\\\";pointer-events:none;transition:opacity 200ms cubic-bezier(0.35, 0, 0.25, 1)}.mat-standard-chip:hover::after{opacity:.12}.mat-standard-chip:focus{outline:none}.mat-standard-chip:focus::after{opacity:.16}.cdk-high-contrast-active .mat-standard-chip{outline:solid 1px}.cdk-high-contrast-active .mat-standard-chip:focus{outline:dotted 2px}.cdk-high-contrast-active .mat-standard-chip.mat-chip-selected{outline-width:3px}.mat-standard-chip.mat-chip-disabled::after{opacity:0}.mat-standard-chip.mat-chip-disabled .mat-chip-remove,.mat-standard-chip.mat-chip-disabled .mat-chip-trailing-icon{cursor:default}.mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar,.mat-standard-chip.mat-chip-with-avatar{padding-top:0;padding-bottom:0}.mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar{padding-right:8px;padding-left:0}[dir=rtl] .mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar{padding-left:8px;padding-right:0}.mat-standard-chip.mat-chip-with-trailing-icon{padding-top:7px;padding-bottom:7px;padding-right:8px;padding-left:12px}[dir=rtl] .mat-standard-chip.mat-chip-with-trailing-icon{padding-left:8px;padding-right:12px}.mat-standard-chip.mat-chip-with-avatar{padding-left:0;padding-right:12px}[dir=rtl] .mat-standard-chip.mat-chip-with-avatar{padding-right:0;padding-left:12px}.mat-standard-chip .mat-chip-avatar{width:24px;height:24px;margin-right:8px;margin-left:4px}[dir=rtl] .mat-standard-chip .mat-chip-avatar{margin-left:8px;margin-right:4px}.mat-standard-chip .mat-chip-remove,.mat-standard-chip .mat-chip-trailing-icon{width:18px;height:18px;cursor:pointer}.mat-standard-chip .mat-chip-remove,.mat-standard-chip .mat-chip-trailing-icon{margin-left:8px;margin-right:0}[dir=rtl] .mat-standard-chip .mat-chip-remove,[dir=rtl] .mat-standard-chip .mat-chip-trailing-icon{margin-right:8px;margin-left:0}.mat-chip-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none;border-radius:inherit;overflow:hidden}.mat-chip-list-wrapper{display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;margin:-4px}.mat-chip-list-wrapper input.mat-input-element,.mat-chip-list-wrapper .mat-standard-chip{margin:4px}.mat-chip-list-stacked .mat-chip-list-wrapper{flex-direction:column;align-items:flex-start}.mat-chip-list-stacked .mat-chip-list-wrapper .mat-standard-chip{width:100%}.mat-chip-avatar{border-radius:50%;justify-content:center;align-items:center;display:flex;overflow:hidden;object-fit:cover}input.mat-chip-input{width:150px;margin:4px;flex:1 0 150px}\\n\"]\n }]\n }], function () {\n return [{\n type: i0.ElementRef\n }, {\n type: i0.ChangeDetectorRef\n }, {\n type: i1$1.Directionality,\n decorators: [{\n type: Optional\n }]\n }, {\n type: i2.NgForm,\n decorators: [{\n type: Optional\n }]\n }, {\n type: i2.FormGroupDirective,\n decorators: [{\n type: Optional\n }]\n }, {\n type: i3.ErrorStateMatcher\n }, {\n type: i2.NgControl,\n decorators: [{\n type: Optional\n }, {\n type: Self\n }]\n }];\n }, {\n errorStateMatcher: [{\n type: Input\n }],\n multiple: [{\n type: Input\n }],\n compareWith: [{\n type: Input\n }],\n value: [{\n type: Input\n }],\n required: [{\n type: Input\n }],\n placeholder: [{\n type: Input\n }],\n disabled: [{\n type: Input\n }],\n ariaOrientation: [{\n type: Input,\n args: ['aria-orientation']\n }],\n selectable: [{\n type: Input\n }],\n tabIndex: [{\n type: Input\n }],\n change: [{\n type: Output\n }],\n valueChange: [{\n type: Output\n }],\n chips: [{\n type: ContentChildren,\n args: [MatChip, {\n // We need to use `descendants: true`, because Ivy will no longer match\n // indirect descendants if it's left as false.\n descendants: true\n }]\n }]\n });\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n\nconst CHIP_DECLARATIONS = [MatChipList, MatChip, MatChipInput, MatChipRemove, MatChipAvatar, MatChipTrailingIcon];\n\nclass MatChipsModule {}\n\nMatChipsModule.ɵfac = function MatChipsModule_Factory(t) {\n return new (t || MatChipsModule)();\n};\n\nMatChipsModule.ɵmod = /* @__PURE__ */i0.ɵɵdefineNgModule({\n type: MatChipsModule\n});\nMatChipsModule.ɵinj = /* @__PURE__ */i0.ɵɵdefineInjector({\n providers: [ErrorStateMatcher, {\n provide: MAT_CHIPS_DEFAULT_OPTIONS,\n useValue: {\n separatorKeyCodes: [ENTER]\n }\n }],\n imports: [[MatCommonModule]]\n});\n\n(function () {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(MatChipsModule, [{\n type: NgModule,\n args: [{\n imports: [MatCommonModule],\n exports: CHIP_DECLARATIONS,\n declarations: CHIP_DECLARATIONS,\n providers: [ErrorStateMatcher, {\n provide: MAT_CHIPS_DEFAULT_OPTIONS,\n useValue: {\n separatorKeyCodes: [ENTER]\n }\n }]\n }]\n }], null, null);\n})();\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\n\nexport { MAT_CHIPS_DEFAULT_OPTIONS, MAT_CHIP_AVATAR, MAT_CHIP_REMOVE, MAT_CHIP_TRAILING_ICON, MatChip, MatChipAvatar, MatChipInput, MatChipList, MatChipListChange, MatChipRemove, MatChipSelectionChange, MatChipTrailingIcon, MatChipsModule 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{ SPACE, BACKSPACE, DELETE, TAB, hasModifierKey, ENTER } from '@angular/cdk/keycodes';\nimport * as i0 from '@angular/core';\nimport { InjectionToken, Directive, EventEmitter, Optional, Inject, Attribute, ContentChild, Input, Output, Component, ViewEncapsulation, ChangeDetectionStrategy, Self, ContentChildren, NgModule } from '@angular/core';\nimport * as i3 from '@angular/material/core';\nimport { mixinTabIndex, mixinColor, mixinDisableRipple, RippleRenderer, MAT_RIPPLE_GLOBAL_OPTIONS, mixinErrorState, MatCommonModule, ErrorStateMatcher } from '@angular/material/core';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { DOCUMENT } from '@angular/common';\nimport { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';\nimport { Subject, merge } from 'rxjs';\nimport { take, takeUntil, startWith } from 'rxjs/operators';\nimport * as i1 from '@angular/cdk/platform';\nimport { FocusKeyManager } from '@angular/cdk/a11y';\nimport { SelectionModel } from '@angular/cdk/collections';\nimport * as i2 from '@angular/forms';\nimport { Validators } from '@angular/forms';\nimport { MatFormFieldControl } from '@angular/material/form-field';\nimport * as i1$1 from '@angular/cdk/bidi';\n\n/** Event object emitted by MatChip when selected or deselected. */\nclass MatChipSelectionChange {\n constructor(\n /** Reference to the chip that emitted the event. */\n source, \n /** Whether the chip that emitted the event is selected. */\n selected, \n /** Whether the selection change was a result of a user interaction. */\n isUserInput = false) {\n this.source = source;\n this.selected = selected;\n this.isUserInput = isUserInput;\n }\n}\n/**\n * Injection token that can be used to reference instances of `MatChipRemove`. It serves as\n * alternative token to the actual `MatChipRemove` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nconst MAT_CHIP_REMOVE = new InjectionToken('MatChipRemove');\n/**\n * Injection token that can be used to reference instances of `MatChipAvatar`. It serves as\n * alternative token to the actual `MatChipAvatar` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nconst MAT_CHIP_AVATAR = new InjectionToken('MatChipAvatar');\n/**\n * Injection token that can be used to reference instances of `MatChipTrailingIcon`. It serves as\n * alternative token to the actual `MatChipTrailingIcon` class which could cause unnecessary\n * retention of the class and its directive metadata.\n */\nconst MAT_CHIP_TRAILING_ICON = new InjectionToken('MatChipTrailingIcon');\n// Boilerplate for applying mixins to MatChip.\n/** @docs-private */\nclass MatChipBase {\n constructor(_elementRef) {\n this._elementRef = _elementRef;\n }\n}\nconst _MatChipMixinBase = mixinTabIndex(mixinColor(mixinDisableRipple(MatChipBase), 'primary'), -1);\n/**\n * Dummy directive to add CSS class to chip avatar.\n * @docs-private\n */\nclass MatChipAvatar {\n}\nMatChipAvatar.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipAvatar, deps: [], target: i0.ɵɵFactoryTarget.Directive });\nMatChipAvatar.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.1.0\", type: MatChipAvatar, selector: \"mat-chip-avatar, [matChipAvatar]\", host: { classAttribute: \"mat-chip-avatar\" }, providers: [{ provide: MAT_CHIP_AVATAR, useExisting: MatChipAvatar }], ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipAvatar, decorators: [{\n type: Directive,\n args: [{\n selector: 'mat-chip-avatar, [matChipAvatar]',\n host: { 'class': 'mat-chip-avatar' },\n providers: [{ provide: MAT_CHIP_AVATAR, useExisting: MatChipAvatar }],\n }]\n }] });\n/**\n * Dummy directive to add CSS class to chip trailing icon.\n * @docs-private\n */\nclass MatChipTrailingIcon {\n}\nMatChipTrailingIcon.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipTrailingIcon, deps: [], target: i0.ɵɵFactoryTarget.Directive });\nMatChipTrailingIcon.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.1.0\", type: MatChipTrailingIcon, selector: \"mat-chip-trailing-icon, [matChipTrailingIcon]\", host: { classAttribute: \"mat-chip-trailing-icon\" }, providers: [{ provide: MAT_CHIP_TRAILING_ICON, useExisting: MatChipTrailingIcon }], ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipTrailingIcon, decorators: [{\n type: Directive,\n args: [{\n selector: 'mat-chip-trailing-icon, [matChipTrailingIcon]',\n host: { 'class': 'mat-chip-trailing-icon' },\n providers: [{ provide: MAT_CHIP_TRAILING_ICON, useExisting: MatChipTrailingIcon }],\n }]\n }] });\n/**\n * Material design styled Chip component. Used inside the MatChipList component.\n */\nclass MatChip extends _MatChipMixinBase {\n constructor(elementRef, _ngZone, platform, globalRippleOptions, _changeDetectorRef, _document, animationMode, tabIndex) {\n super(elementRef);\n this._ngZone = _ngZone;\n this._changeDetectorRef = _changeDetectorRef;\n /** Whether the chip has focus. */\n this._hasFocus = false;\n /** Whether the chip list is selectable */\n this.chipListSelectable = true;\n /** Whether the chip list is in multi-selection mode. */\n this._chipListMultiple = false;\n /** Whether the chip list as a whole is disabled. */\n this._chipListDisabled = false;\n this._selected = false;\n this._selectable = true;\n this._disabled = false;\n this._removable = true;\n /** Emits when the chip is focused. */\n this._onFocus = new Subject();\n /** Emits when the chip is blured. */\n this._onBlur = new Subject();\n /** Emitted when the chip is selected or deselected. */\n this.selectionChange = new EventEmitter();\n /** Emitted when the chip is destroyed. */\n this.destroyed = new EventEmitter();\n /** Emitted when a chip is to be removed. */\n this.removed = new EventEmitter();\n this._addHostClassName();\n // Dynamically create the ripple target, append it within the chip, and use it as the\n // chip's ripple target. 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Defaults to the content inside `` tags. */\n get value() {\n return this._value !== undefined ? this._value : this._elementRef.nativeElement.textContent;\n }\n set value(value) {\n this._value = value;\n }\n /**\n * Whether or not the chip is selectable. When a chip is not selectable,\n * changes to its selected state are always ignored. By default a chip is\n * selectable, and it becomes non-selectable if its parent chip list is\n * not selectable.\n */\n get selectable() {\n return this._selectable && this.chipListSelectable;\n }\n set selectable(value) {\n this._selectable = coerceBooleanProperty(value);\n }\n /** Whether the chip is disabled. */\n get disabled() {\n return this._chipListDisabled || this._disabled;\n }\n set disabled(value) {\n this._disabled = coerceBooleanProperty(value);\n }\n /**\n * Determines whether or not the chip displays the remove styling and emits (removed) events.\n */\n get removable() {\n return this._removable;\n }\n set removable(value) {\n this._removable = coerceBooleanProperty(value);\n }\n /** The ARIA selected applied to the chip. */\n get ariaSelected() {\n // Remove the `aria-selected` when the chip is deselected in single-selection mode, because\n // it adds noise to NVDA users where \"not selected\" will be read out for each chip.\n return this.selectable && (this._chipListMultiple || this.selected)\n ? this.selected.toString()\n : null;\n }\n _addHostClassName() {\n const basicChipAttrName = 'mat-basic-chip';\n const element = this._elementRef.nativeElement;\n if (element.hasAttribute(basicChipAttrName) ||\n element.tagName.toLowerCase() === basicChipAttrName) {\n element.classList.add(basicChipAttrName);\n return;\n }\n else {\n element.classList.add('mat-standard-chip');\n }\n }\n ngOnDestroy() {\n this.destroyed.emit({ chip: this });\n this._chipRipple._removeTriggerEvents();\n }\n /** Selects the chip. */\n select() {\n if (!this._selected) {\n this._selected = true;\n this._dispatchSelectionChange();\n this._changeDetectorRef.markForCheck();\n }\n }\n /** Deselects the chip. */\n deselect() {\n if (this._selected) {\n this._selected = false;\n this._dispatchSelectionChange();\n this._changeDetectorRef.markForCheck();\n }\n }\n /** Select this chip and emit selected event */\n selectViaInteraction() {\n if (!this._selected) {\n this._selected = true;\n this._dispatchSelectionChange(true);\n this._changeDetectorRef.markForCheck();\n }\n }\n /** Toggles the current selected state of this chip. */\n toggleSelected(isUserInput = false) {\n this._selected = !this.selected;\n this._dispatchSelectionChange(isUserInput);\n this._changeDetectorRef.markForCheck();\n return this.selected;\n }\n /** Allows for programmatic focusing of the chip. */\n focus() {\n if (!this._hasFocus) {\n this._elementRef.nativeElement.focus();\n this._onFocus.next({ chip: this });\n }\n this._hasFocus = true;\n }\n /**\n * Allows for programmatic removal of the chip. Called by the MatChipList when the DELETE or\n * BACKSPACE keys are pressed.\n *\n * Informs any listeners of the removal request. Does not remove the chip from the DOM.\n */\n remove() {\n if (this.removable) {\n this.removed.emit({ chip: this });\n }\n }\n /** Handles click events on the chip. */\n _handleClick(event) {\n if (this.disabled) {\n event.preventDefault();\n }\n else {\n event.stopPropagation();\n }\n }\n /** Handle custom key presses. */\n _handleKeydown(event) {\n if (this.disabled) {\n return;\n }\n switch (event.keyCode) {\n case DELETE:\n case BACKSPACE:\n // If we are removable, remove the focused chip\n this.remove();\n // Always prevent so page navigation does not occur\n event.preventDefault();\n break;\n case SPACE:\n // If we are selectable, toggle the focused chip\n if (this.selectable) {\n this.toggleSelected(true);\n }\n // Always prevent space from scrolling the page since the list has focus\n event.preventDefault();\n break;\n }\n }\n _blur() {\n // When animations are enabled, Angular may end up removing the chip from the DOM a little\n // earlier than usual, causing it to be blurred and throwing off the logic in the chip list\n // that moves focus not the next item. To work around the issue, we defer marking the chip\n // as not focused until the next time the zone stabilizes.\n this._ngZone.onStable.pipe(take(1)).subscribe(() => {\n this._ngZone.run(() => {\n this._hasFocus = false;\n this._onBlur.next({ chip: this });\n });\n });\n }\n _dispatchSelectionChange(isUserInput = false) {\n this.selectionChange.emit({\n source: this,\n isUserInput,\n selected: this._selected,\n });\n }\n}\nMatChip.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChip, deps: [{ token: i0.ElementRef }, { token: i0.NgZone }, { token: i1.Platform }, { token: MAT_RIPPLE_GLOBAL_OPTIONS, optional: true }, { token: i0.ChangeDetectorRef }, { token: DOCUMENT }, { token: ANIMATION_MODULE_TYPE, optional: true }, { token: 'tabindex', attribute: true }], target: i0.ɵɵFactoryTarget.Directive });\nMatChip.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.1.0\", type: MatChip, selector: \"mat-basic-chip, [mat-basic-chip], mat-chip, [mat-chip]\", inputs: { color: \"color\", disableRipple: \"disableRipple\", tabIndex: \"tabIndex\", selected: \"selected\", value: \"value\", selectable: \"selectable\", disabled: \"disabled\", removable: \"removable\" }, outputs: { selectionChange: \"selectionChange\", destroyed: \"destroyed\", removed: \"removed\" }, host: { attributes: { \"role\": \"option\" }, listeners: { \"click\": \"_handleClick($event)\", \"keydown\": \"_handleKeydown($event)\", \"focus\": \"focus()\", \"blur\": \"_blur()\" }, properties: { \"attr.tabindex\": \"disabled ? null : tabIndex\", \"class.mat-chip-selected\": \"selected\", \"class.mat-chip-with-avatar\": \"avatar\", \"class.mat-chip-with-trailing-icon\": \"trailingIcon || removeIcon\", \"class.mat-chip-disabled\": \"disabled\", \"class._mat-animation-noopable\": \"_animationsDisabled\", \"attr.disabled\": \"disabled || null\", \"attr.aria-disabled\": \"disabled.toString()\", \"attr.aria-selected\": \"ariaSelected\" }, classAttribute: \"mat-chip mat-focus-indicator\" }, queries: [{ propertyName: \"avatar\", first: true, predicate: MAT_CHIP_AVATAR, descendants: true }, { propertyName: \"trailingIcon\", first: true, predicate: MAT_CHIP_TRAILING_ICON, descendants: true }, { propertyName: \"removeIcon\", first: true, predicate: MAT_CHIP_REMOVE, descendants: true }], exportAs: [\"matChip\"], usesInheritance: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChip, decorators: [{\n type: Directive,\n args: [{\n selector: `mat-basic-chip, [mat-basic-chip], mat-chip, [mat-chip]`,\n inputs: ['color', 'disableRipple', 'tabIndex'],\n exportAs: 'matChip',\n host: {\n 'class': 'mat-chip mat-focus-indicator',\n '[attr.tabindex]': 'disabled ? null : tabIndex',\n 'role': 'option',\n '[class.mat-chip-selected]': 'selected',\n '[class.mat-chip-with-avatar]': 'avatar',\n '[class.mat-chip-with-trailing-icon]': 'trailingIcon || removeIcon',\n '[class.mat-chip-disabled]': 'disabled',\n '[class._mat-animation-noopable]': '_animationsDisabled',\n '[attr.disabled]': 'disabled || null',\n '[attr.aria-disabled]': 'disabled.toString()',\n '[attr.aria-selected]': 'ariaSelected',\n '(click)': '_handleClick($event)',\n '(keydown)': '_handleKeydown($event)',\n '(focus)': 'focus()',\n '(blur)': '_blur()',\n },\n }]\n }], ctorParameters: function () {\n return [{ type: i0.ElementRef }, { type: i0.NgZone }, { type: i1.Platform }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [MAT_RIPPLE_GLOBAL_OPTIONS]\n }] }, { type: i0.ChangeDetectorRef }, { type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [ANIMATION_MODULE_TYPE]\n }] }, { type: undefined, decorators: [{\n type: Attribute,\n args: ['tabindex']\n }] }];\n }, propDecorators: { avatar: [{\n type: ContentChild,\n args: [MAT_CHIP_AVATAR]\n }], trailingIcon: [{\n type: ContentChild,\n args: [MAT_CHIP_TRAILING_ICON]\n }], removeIcon: [{\n type: ContentChild,\n args: [MAT_CHIP_REMOVE]\n }], selected: [{\n type: Input\n }], value: [{\n type: Input\n }], selectable: [{\n type: Input\n }], disabled: [{\n type: Input\n }], removable: [{\n type: Input\n }], selectionChange: [{\n type: Output\n }], destroyed: [{\n type: Output\n }], removed: [{\n type: Output\n }] } });\n/**\n * Applies proper (click) support and adds styling for use with the Material Design \"cancel\" icon\n * available at https://material.io/icons/#ic_cancel.\n *\n * Example:\n *\n * `\n * cancel\n * `\n *\n * You *may* use a custom icon, but you may need to override the `mat-chip-remove` positioning\n * styles to properly center the icon within the chip.\n */\nclass MatChipRemove {\n constructor(_parentChip, elementRef) {\n this._parentChip = _parentChip;\n if (elementRef.nativeElement.nodeName === 'BUTTON') {\n elementRef.nativeElement.setAttribute('type', 'button');\n }\n }\n /** Calls the parent chip's public `remove()` method if applicable. */\n _handleClick(event) {\n const parentChip = this._parentChip;\n if (parentChip.removable && !parentChip.disabled) {\n parentChip.remove();\n }\n // We need to stop event propagation because otherwise the event will bubble up to the\n // form field and cause the `onContainerClick` method to be invoked. This method would then\n // reset the focused chip that has been focused after chip removal. Usually the parent\n // the parent click listener of the `MatChip` would prevent propagation, but it can happen\n // that the chip is being removed before the event bubbles up.\n event.stopPropagation();\n }\n}\nMatChipRemove.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipRemove, deps: [{ token: MatChip }, { token: i0.ElementRef }], target: i0.ɵɵFactoryTarget.Directive });\nMatChipRemove.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.1.0\", type: MatChipRemove, selector: \"[matChipRemove]\", host: { listeners: { \"click\": \"_handleClick($event)\" }, classAttribute: \"mat-chip-remove mat-chip-trailing-icon\" }, providers: [{ provide: MAT_CHIP_REMOVE, useExisting: MatChipRemove }], ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipRemove, decorators: [{\n type: Directive,\n args: [{\n selector: '[matChipRemove]',\n host: {\n 'class': 'mat-chip-remove mat-chip-trailing-icon',\n '(click)': '_handleClick($event)',\n },\n providers: [{ provide: MAT_CHIP_REMOVE, useExisting: MatChipRemove }],\n }]\n }], ctorParameters: function () { return [{ type: MatChip }, { type: i0.ElementRef }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Injection token to be used to override the default options for the chips module. */\nconst MAT_CHIPS_DEFAULT_OPTIONS = new InjectionToken('mat-chips-default-options');\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// Increasing integer for generating unique ids.\nlet nextUniqueId$1 = 0;\n/**\n * Directive that adds chip-specific behaviors to an input element inside ``.\n * May be placed inside or outside of an ``.\n */\nclass MatChipInput {\n constructor(_elementRef, _defaultOptions) {\n this._elementRef = _elementRef;\n this._defaultOptions = _defaultOptions;\n /** Whether the control is focused. */\n this.focused = false;\n this._addOnBlur = false;\n /**\n * The list of key codes that will trigger a chipEnd event.\n *\n * Defaults to `[ENTER]`.\n */\n this.separatorKeyCodes = this._defaultOptions.separatorKeyCodes;\n /** Emitted when a chip is to be added. */\n this.chipEnd = new EventEmitter();\n /** The input's placeholder text. */\n this.placeholder = '';\n /** Unique id for the input. */\n this.id = `mat-chip-list-input-${nextUniqueId$1++}`;\n this._disabled = false;\n this.inputElement = this._elementRef.nativeElement;\n }\n /** Register input for chip list */\n set chipList(value) {\n if (value) {\n this._chipList = value;\n this._chipList.registerInput(this);\n }\n }\n /**\n * Whether or not the chipEnd event will be emitted when the input is blurred.\n */\n get addOnBlur() {\n return this._addOnBlur;\n }\n set addOnBlur(value) {\n this._addOnBlur = coerceBooleanProperty(value);\n }\n /** Whether the input is disabled. */\n get disabled() {\n return this._disabled || (this._chipList && this._chipList.disabled);\n }\n set disabled(value) {\n this._disabled = coerceBooleanProperty(value);\n }\n /** Whether the input is empty. */\n get empty() {\n return !this.inputElement.value;\n }\n ngOnChanges() {\n this._chipList.stateChanges.next();\n }\n ngOnDestroy() {\n this.chipEnd.complete();\n }\n ngAfterContentInit() {\n this._focusLastChipOnBackspace = this.empty;\n }\n /** Utility method to make host definition/tests more clear. */\n _keydown(event) {\n if (event) {\n // Allow the user's focus to escape when they're tabbing forward. Note that we don't\n // want to do this when going backwards, because focus should go back to the first chip.\n if (event.keyCode === TAB && !hasModifierKey(event, 'shiftKey')) {\n this._chipList._allowFocusEscape();\n }\n // To prevent the user from accidentally deleting chips when pressing BACKSPACE continuously,\n // We focus the last chip on backspace only after the user has released the backspace button,\n // and the input is empty (see behaviour in _keyup)\n if (event.keyCode === BACKSPACE && this._focusLastChipOnBackspace) {\n this._chipList._keyManager.setLastItemActive();\n event.preventDefault();\n return;\n }\n else {\n this._focusLastChipOnBackspace = false;\n }\n }\n this._emitChipEnd(event);\n }\n /**\n * Pass events to the keyboard manager. Available here for tests.\n */\n _keyup(event) {\n // Allow user to move focus to chips next time he presses backspace\n if (!this._focusLastChipOnBackspace && event.keyCode === BACKSPACE && this.empty) {\n this._focusLastChipOnBackspace = true;\n event.preventDefault();\n }\n }\n /** Checks to see if the blur should emit the (chipEnd) event. */\n _blur() {\n if (this.addOnBlur) {\n this._emitChipEnd();\n }\n this.focused = false;\n // Blur the chip list if it is not focused\n if (!this._chipList.focused) {\n this._chipList._blur();\n }\n this._chipList.stateChanges.next();\n }\n _focus() {\n this.focused = true;\n this._focusLastChipOnBackspace = this.empty;\n this._chipList.stateChanges.next();\n }\n /** Checks to see if the (chipEnd) event needs to be emitted. */\n _emitChipEnd(event) {\n if (!this.inputElement.value && !!event) {\n this._chipList._keydown(event);\n }\n if (!event || this._isSeparatorKey(event)) {\n this.chipEnd.emit({\n input: this.inputElement,\n value: this.inputElement.value,\n chipInput: this,\n });\n event === null || event === void 0 ? void 0 : event.preventDefault();\n }\n }\n _onInput() {\n // Let chip list know whenever the value changes.\n this._chipList.stateChanges.next();\n }\n /** Focuses the input. */\n focus(options) {\n this.inputElement.focus(options);\n }\n /** Clears the input */\n clear() {\n this.inputElement.value = '';\n this._focusLastChipOnBackspace = true;\n }\n /** Checks whether a keycode is one of the configured separators. */\n _isSeparatorKey(event) {\n return !hasModifierKey(event) && new Set(this.separatorKeyCodes).has(event.keyCode);\n }\n}\nMatChipInput.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipInput, deps: [{ token: i0.ElementRef }, { token: MAT_CHIPS_DEFAULT_OPTIONS }], target: i0.ɵɵFactoryTarget.Directive });\nMatChipInput.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.1.0\", type: MatChipInput, selector: \"input[matChipInputFor]\", inputs: { chipList: [\"matChipInputFor\", \"chipList\"], addOnBlur: [\"matChipInputAddOnBlur\", \"addOnBlur\"], separatorKeyCodes: [\"matChipInputSeparatorKeyCodes\", \"separatorKeyCodes\"], placeholder: \"placeholder\", id: \"id\", disabled: \"disabled\" }, outputs: { chipEnd: \"matChipInputTokenEnd\" }, host: { listeners: { \"keydown\": \"_keydown($event)\", \"keyup\": \"_keyup($event)\", \"blur\": \"_blur()\", \"focus\": \"_focus()\", \"input\": \"_onInput()\" }, properties: { \"id\": \"id\", \"attr.disabled\": \"disabled || null\", \"attr.placeholder\": \"placeholder || null\", \"attr.aria-invalid\": \"_chipList && _chipList.ngControl ? _chipList.ngControl.invalid : null\", \"attr.aria-required\": \"_chipList && _chipList.required || null\" }, classAttribute: \"mat-chip-input mat-input-element\" }, exportAs: [\"matChipInput\", \"matChipInputFor\"], usesOnChanges: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipInput, decorators: [{\n type: Directive,\n args: [{\n selector: 'input[matChipInputFor]',\n exportAs: 'matChipInput, matChipInputFor',\n host: {\n 'class': 'mat-chip-input mat-input-element',\n '(keydown)': '_keydown($event)',\n '(keyup)': '_keyup($event)',\n '(blur)': '_blur()',\n '(focus)': '_focus()',\n '(input)': '_onInput()',\n '[id]': 'id',\n '[attr.disabled]': 'disabled || null',\n '[attr.placeholder]': 'placeholder || null',\n '[attr.aria-invalid]': '_chipList && _chipList.ngControl ? _chipList.ngControl.invalid : null',\n '[attr.aria-required]': '_chipList && _chipList.required || null',\n },\n }]\n }], ctorParameters: function () {\n return [{ type: i0.ElementRef }, { type: undefined, decorators: [{\n type: Inject,\n args: [MAT_CHIPS_DEFAULT_OPTIONS]\n }] }];\n }, propDecorators: { chipList: [{\n type: Input,\n args: ['matChipInputFor']\n }], addOnBlur: [{\n type: Input,\n args: ['matChipInputAddOnBlur']\n }], separatorKeyCodes: [{\n type: Input,\n args: ['matChipInputSeparatorKeyCodes']\n }], chipEnd: [{\n type: Output,\n args: ['matChipInputTokenEnd']\n }], placeholder: [{\n type: Input\n }], id: [{\n type: Input\n }], disabled: [{\n type: Input\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// Boilerplate for applying mixins to MatChipList.\n/** @docs-private */\nconst _MatChipListBase = mixinErrorState(class {\n constructor(_defaultErrorStateMatcher, _parentForm, _parentFormGroup, \n /** @docs-private */\n ngControl) {\n this._defaultErrorStateMatcher = _defaultErrorStateMatcher;\n this._parentForm = _parentForm;\n this._parentFormGroup = _parentFormGroup;\n this.ngControl = ngControl;\n }\n});\n// Increasing integer for generating unique ids for chip-list components.\nlet nextUniqueId = 0;\n/** Change event object that is emitted when the chip list value has changed. */\nclass MatChipListChange {\n constructor(\n /** Chip list that emitted the event. */\n source, \n /** Value of the chip list when the event was emitted. */\n value) {\n this.source = source;\n this.value = value;\n }\n}\n/**\n * A material design chips component (named ChipList for its similarity to the List component).\n */\nclass MatChipList extends _MatChipListBase {\n constructor(_elementRef, _changeDetectorRef, _dir, _parentForm, _parentFormGroup, _defaultErrorStateMatcher, ngControl) {\n super(_defaultErrorStateMatcher, _parentForm, _parentFormGroup, ngControl);\n this._elementRef = _elementRef;\n this._changeDetectorRef = _changeDetectorRef;\n this._dir = _dir;\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n this.controlType = 'mat-chip-list';\n /**\n * When a chip is destroyed, we store the index of the destroyed chip until the chips\n * query list notifies about the update. This is necessary because we cannot determine an\n * appropriate chip that should receive focus until the array of chips updated completely.\n */\n this._lastDestroyedChipIndex = null;\n /** Subject that emits when the component has been destroyed. */\n this._destroyed = new Subject();\n /** Uid of the chip list */\n this._uid = `mat-chip-list-${nextUniqueId++}`;\n /** Tab index for the chip list. */\n this._tabIndex = 0;\n /**\n * User defined tab index.\n * When it is not null, use user defined tab index. Otherwise use _tabIndex\n */\n this._userTabIndex = null;\n /** Function when touched */\n this._onTouched = () => { };\n /** Function when changed */\n this._onChange = () => { };\n this._multiple = false;\n this._compareWith = (o1, o2) => o1 === o2;\n this._disabled = false;\n /** Orientation of the chip list. */\n this.ariaOrientation = 'horizontal';\n this._selectable = true;\n /** Event emitted when the selected chip list value has been changed by the user. */\n this.change = new EventEmitter();\n /**\n * Event that emits whenever the raw value of the chip-list changes. This is here primarily\n * to facilitate the two-way binding for the `value` input.\n * @docs-private\n */\n this.valueChange = new EventEmitter();\n if (this.ngControl) {\n this.ngControl.valueAccessor = this;\n }\n }\n /** The array of selected chips inside chip list. */\n get selected() {\n var _a, _b;\n return this.multiple ? ((_a = this._selectionModel) === null || _a === void 0 ? void 0 : _a.selected) || [] : (_b = this._selectionModel) === null || _b === void 0 ? void 0 : _b.selected[0];\n }\n /** The ARIA role applied to the chip list. */\n get role() {\n return this.empty ? null : 'listbox';\n }\n /** Whether the user should be allowed to select multiple chips. */\n get multiple() {\n return this._multiple;\n }\n set multiple(value) {\n this._multiple = coerceBooleanProperty(value);\n this._syncChipsState();\n }\n /**\n * A function to compare the option values with the selected values. The first argument\n * is a value from an option. The second is a value from the selection. A boolean\n * should be returned.\n */\n get compareWith() {\n return this._compareWith;\n }\n set compareWith(fn) {\n this._compareWith = fn;\n if (this._selectionModel) {\n // A different comparator means the selection could change.\n this._initializeSelection();\n }\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n get value() {\n return this._value;\n }\n set value(value) {\n this.writeValue(value);\n this._value = value;\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n get id() {\n return this._chipInput ? this._chipInput.id : this._uid;\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n get required() {\n var _a, _b, _c, _d;\n return (_d = (_a = this._required) !== null && _a !== void 0 ? _a : (_c = (_b = this.ngControl) === null || _b === void 0 ? void 0 : _b.control) === null || _c === void 0 ? void 0 : _c.hasValidator(Validators.required)) !== null && _d !== void 0 ? _d : false;\n }\n set required(value) {\n this._required = coerceBooleanProperty(value);\n this.stateChanges.next();\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n get placeholder() {\n return this._chipInput ? this._chipInput.placeholder : this._placeholder;\n }\n set placeholder(value) {\n this._placeholder = value;\n this.stateChanges.next();\n }\n /** Whether any chips or the matChipInput inside of this chip-list has focus. */\n get focused() {\n return (this._chipInput && this._chipInput.focused) || this._hasFocusedChip();\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n get empty() {\n return (!this._chipInput || this._chipInput.empty) && (!this.chips || this.chips.length === 0);\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n get shouldLabelFloat() {\n return !this.empty || this.focused;\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n get disabled() {\n return this.ngControl ? !!this.ngControl.disabled : this._disabled;\n }\n set disabled(value) {\n this._disabled = coerceBooleanProperty(value);\n this._syncChipsState();\n }\n /**\n * Whether or not this chip list is selectable. When a chip list is not selectable,\n * the selected states for all the chips inside the chip list are always ignored.\n */\n get selectable() {\n return this._selectable;\n }\n set selectable(value) {\n this._selectable = coerceBooleanProperty(value);\n if (this.chips) {\n this.chips.forEach(chip => (chip.chipListSelectable = this._selectable));\n }\n }\n set tabIndex(value) {\n this._userTabIndex = value;\n this._tabIndex = value;\n }\n /** Combined stream of all of the child chips' selection change events. */\n get chipSelectionChanges() {\n return merge(...this.chips.map(chip => chip.selectionChange));\n }\n /** Combined stream of all of the child chips' focus change events. */\n get chipFocusChanges() {\n return merge(...this.chips.map(chip => chip._onFocus));\n }\n /** Combined stream of all of the child chips' blur change events. */\n get chipBlurChanges() {\n return merge(...this.chips.map(chip => chip._onBlur));\n }\n /** Combined stream of all of the child chips' remove change events. */\n get chipRemoveChanges() {\n return merge(...this.chips.map(chip => chip.destroyed));\n }\n ngAfterContentInit() {\n this._keyManager = new FocusKeyManager(this.chips)\n .withWrap()\n .withVerticalOrientation()\n .withHomeAndEnd()\n .withHorizontalOrientation(this._dir ? this._dir.value : 'ltr');\n if (this._dir) {\n this._dir.change\n .pipe(takeUntil(this._destroyed))\n .subscribe(dir => this._keyManager.withHorizontalOrientation(dir));\n }\n this._keyManager.tabOut.pipe(takeUntil(this._destroyed)).subscribe(() => {\n this._allowFocusEscape();\n });\n // When the list changes, re-subscribe\n this.chips.changes.pipe(startWith(null), takeUntil(this._destroyed)).subscribe(() => {\n if (this.disabled) {\n // Since this happens after the content has been\n // checked, we need to defer it to the next tick.\n Promise.resolve().then(() => {\n this._syncChipsState();\n });\n }\n this._resetChips();\n // Reset chips selected/deselected status\n this._initializeSelection();\n // Check to see if we need to update our tab index\n this._updateTabIndex();\n // Check to see if we have a destroyed chip and need to refocus\n this._updateFocusForDestroyedChips();\n this.stateChanges.next();\n });\n }\n ngOnInit() {\n this._selectionModel = new SelectionModel(this.multiple, undefined, false);\n this.stateChanges.next();\n }\n ngDoCheck() {\n if (this.ngControl) {\n // We need to re-evaluate this on every change detection cycle, because there are some\n // error triggers that we can't subscribe to (e.g. parent form submissions). This means\n // that whatever logic is in here has to be super lean or we risk destroying the performance.\n this.updateErrorState();\n if (this.ngControl.disabled !== this._disabled) {\n this.disabled = !!this.ngControl.disabled;\n }\n }\n }\n ngOnDestroy() {\n this._destroyed.next();\n this._destroyed.complete();\n this.stateChanges.complete();\n this._dropSubscriptions();\n }\n /** Associates an HTML input element with this chip list. */\n registerInput(inputElement) {\n this._chipInput = inputElement;\n // We use this attribute to match the chip list to its input in test harnesses.\n // Set the attribute directly here to avoid \"changed after checked\" errors.\n this._elementRef.nativeElement.setAttribute('data-mat-chip-input', inputElement.id);\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n setDescribedByIds(ids) {\n this._ariaDescribedby = ids.join(' ');\n }\n // Implemented as part of ControlValueAccessor.\n writeValue(value) {\n if (this.chips) {\n this._setSelectionByValue(value, false);\n }\n }\n // Implemented as part of ControlValueAccessor.\n registerOnChange(fn) {\n this._onChange = fn;\n }\n // Implemented as part of ControlValueAccessor.\n registerOnTouched(fn) {\n this._onTouched = fn;\n }\n // Implemented as part of ControlValueAccessor.\n setDisabledState(isDisabled) {\n this.disabled = isDisabled;\n this.stateChanges.next();\n }\n /**\n * Implemented as part of MatFormFieldControl.\n * @docs-private\n */\n onContainerClick(event) {\n if (!this._originatesFromChip(event)) {\n this.focus();\n }\n }\n /**\n * Focuses the first non-disabled chip in this chip list, or the associated input when there\n * are no eligible chips.\n */\n focus(options) {\n if (this.disabled) {\n return;\n }\n // TODO: ARIA says this should focus the first `selected` chip if any are selected.\n // Focus on first element if there's no chipInput inside chip-list\n if (this._chipInput && this._chipInput.focused) {\n // do nothing\n }\n else if (this.chips.length > 0) {\n this._keyManager.setFirstItemActive();\n this.stateChanges.next();\n }\n else {\n this._focusInput(options);\n this.stateChanges.next();\n }\n }\n /** Attempt to focus an input if we have one. */\n _focusInput(options) {\n if (this._chipInput) {\n this._chipInput.focus(options);\n }\n }\n /**\n * Pass events to the keyboard manager. Available here for tests.\n */\n _keydown(event) {\n const target = event.target;\n if (target && target.classList.contains('mat-chip')) {\n this._keyManager.onKeydown(event);\n this.stateChanges.next();\n }\n }\n /**\n * Check the tab index as you should not be allowed to focus an empty list.\n */\n _updateTabIndex() {\n // If we have 0 chips, we should not allow keyboard focus\n this._tabIndex = this._userTabIndex || (this.chips.length === 0 ? -1 : 0);\n }\n /**\n * If the amount of chips changed, we need to update the\n * key manager state and focus the next closest chip.\n */\n _updateFocusForDestroyedChips() {\n // Move focus to the closest chip. If no other chips remain, focus the chip-list itself.\n if (this._lastDestroyedChipIndex != null) {\n if (this.chips.length) {\n const newChipIndex = Math.min(this._lastDestroyedChipIndex, this.chips.length - 1);\n this._keyManager.setActiveItem(newChipIndex);\n }\n else {\n this.focus();\n }\n }\n this._lastDestroyedChipIndex = null;\n }\n /**\n * Utility to ensure all indexes are valid.\n *\n * @param index The index to be checked.\n * @returns True if the index is valid for our list of chips.\n */\n _isValidIndex(index) {\n return index >= 0 && index < this.chips.length;\n }\n _setSelectionByValue(value, isUserInput = true) {\n this._clearSelection();\n this.chips.forEach(chip => chip.deselect());\n if (Array.isArray(value)) {\n value.forEach(currentValue => this._selectValue(currentValue, isUserInput));\n this._sortValues();\n }\n else {\n const correspondingChip = this._selectValue(value, isUserInput);\n // Shift focus to the active item. Note that we shouldn't do this in multiple\n // mode, because we don't know what chip the user interacted with last.\n if (correspondingChip) {\n if (isUserInput) {\n this._keyManager.setActiveItem(correspondingChip);\n }\n }\n }\n }\n /**\n * Finds and selects the chip based on its value.\n * @returns Chip that has the corresponding value.\n */\n _selectValue(value, isUserInput = true) {\n const correspondingChip = this.chips.find(chip => {\n return chip.value != null && this._compareWith(chip.value, value);\n });\n if (correspondingChip) {\n isUserInput ? correspondingChip.selectViaInteraction() : correspondingChip.select();\n this._selectionModel.select(correspondingChip);\n }\n return correspondingChip;\n }\n _initializeSelection() {\n // Defer setting the value in order to avoid the \"Expression\n // has changed after it was checked\" errors from Angular.\n Promise.resolve().then(() => {\n if (this.ngControl || this._value) {\n this._setSelectionByValue(this.ngControl ? this.ngControl.value : this._value, false);\n this.stateChanges.next();\n }\n });\n }\n /**\n * Deselects every chip in the list.\n * @param skip Chip that should not be deselected.\n */\n _clearSelection(skip) {\n this._selectionModel.clear();\n this.chips.forEach(chip => {\n if (chip !== skip) {\n chip.deselect();\n }\n });\n this.stateChanges.next();\n }\n /**\n * Sorts the model values, ensuring that they keep the same\n * order that they have in the panel.\n */\n _sortValues() {\n if (this._multiple) {\n this._selectionModel.clear();\n this.chips.forEach(chip => {\n if (chip.selected) {\n this._selectionModel.select(chip);\n }\n });\n this.stateChanges.next();\n }\n }\n /** Emits change event to set the model value. */\n _propagateChanges(fallbackValue) {\n let valueToEmit = null;\n if (Array.isArray(this.selected)) {\n valueToEmit = this.selected.map(chip => chip.value);\n }\n else {\n valueToEmit = this.selected ? this.selected.value : fallbackValue;\n }\n this._value = valueToEmit;\n this.change.emit(new MatChipListChange(this, valueToEmit));\n this.valueChange.emit(valueToEmit);\n this._onChange(valueToEmit);\n this._changeDetectorRef.markForCheck();\n }\n /** When blurred, mark the field as touched when focus moved outside the chip list. */\n _blur() {\n if (!this._hasFocusedChip()) {\n this._keyManager.setActiveItem(-1);\n }\n if (!this.disabled) {\n if (this._chipInput) {\n // If there's a chip input, we should check whether the focus moved to chip input.\n // If the focus is not moved to chip input, mark the field as touched. If the focus moved\n // to chip input, do nothing.\n // Timeout is needed to wait for the focus() event trigger on chip input.\n setTimeout(() => {\n if (!this.focused) {\n this._markAsTouched();\n }\n });\n }\n else {\n // If there's no chip input, then mark the field as touched.\n this._markAsTouched();\n }\n }\n }\n /** Mark the field as touched */\n _markAsTouched() {\n this._onTouched();\n this._changeDetectorRef.markForCheck();\n this.stateChanges.next();\n }\n /**\n * Removes the `tabindex` from the chip list and resets it back afterwards, allowing the\n * user to tab out of it. This prevents the list from capturing focus and redirecting\n * it back to the first chip, creating a focus trap, if it user tries to tab away.\n */\n _allowFocusEscape() {\n if (this._tabIndex !== -1) {\n this._tabIndex = -1;\n setTimeout(() => {\n this._tabIndex = this._userTabIndex || 0;\n this._changeDetectorRef.markForCheck();\n });\n }\n }\n _resetChips() {\n this._dropSubscriptions();\n this._listenToChipsFocus();\n this._listenToChipsSelection();\n this._listenToChipsRemoved();\n }\n _dropSubscriptions() {\n if (this._chipFocusSubscription) {\n this._chipFocusSubscription.unsubscribe();\n this._chipFocusSubscription = null;\n }\n if (this._chipBlurSubscription) {\n this._chipBlurSubscription.unsubscribe();\n this._chipBlurSubscription = null;\n }\n if (this._chipSelectionSubscription) {\n this._chipSelectionSubscription.unsubscribe();\n this._chipSelectionSubscription = null;\n }\n if (this._chipRemoveSubscription) {\n this._chipRemoveSubscription.unsubscribe();\n this._chipRemoveSubscription = null;\n }\n }\n /** Listens to user-generated selection events on each chip. */\n _listenToChipsSelection() {\n this._chipSelectionSubscription = this.chipSelectionChanges.subscribe(event => {\n event.source.selected\n ? this._selectionModel.select(event.source)\n : this._selectionModel.deselect(event.source);\n // For single selection chip list, make sure the deselected value is unselected.\n if (!this.multiple) {\n this.chips.forEach(chip => {\n if (!this._selectionModel.isSelected(chip) && chip.selected) {\n chip.deselect();\n }\n });\n }\n if (event.isUserInput) {\n this._propagateChanges();\n }\n });\n }\n /** Listens to user-generated selection events on each chip. */\n _listenToChipsFocus() {\n this._chipFocusSubscription = this.chipFocusChanges.subscribe(event => {\n let chipIndex = this.chips.toArray().indexOf(event.chip);\n if (this._isValidIndex(chipIndex)) {\n this._keyManager.updateActiveItem(chipIndex);\n }\n this.stateChanges.next();\n });\n this._chipBlurSubscription = this.chipBlurChanges.subscribe(() => {\n this._blur();\n this.stateChanges.next();\n });\n }\n _listenToChipsRemoved() {\n this._chipRemoveSubscription = this.chipRemoveChanges.subscribe(event => {\n const chip = event.chip;\n const chipIndex = this.chips.toArray().indexOf(event.chip);\n // In case the chip that will be removed is currently focused, we temporarily store\n // the index in order to be able to determine an appropriate sibling chip that will\n // receive focus.\n if (this._isValidIndex(chipIndex) && chip._hasFocus) {\n this._lastDestroyedChipIndex = chipIndex;\n }\n });\n }\n /** Checks whether an event comes from inside a chip element. */\n _originatesFromChip(event) {\n let currentElement = event.target;\n while (currentElement && currentElement !== this._elementRef.nativeElement) {\n if (currentElement.classList.contains('mat-chip')) {\n return true;\n }\n currentElement = currentElement.parentElement;\n }\n return false;\n }\n /** Checks whether any of the chips is focused. */\n _hasFocusedChip() {\n return this.chips && this.chips.some(chip => chip._hasFocus);\n }\n /** Syncs the list's state with the individual chips. */\n _syncChipsState() {\n if (this.chips) {\n this.chips.forEach(chip => {\n chip._chipListDisabled = this._disabled;\n chip._chipListMultiple = this.multiple;\n });\n }\n }\n}\nMatChipList.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipList, deps: [{ token: i0.ElementRef }, { token: i0.ChangeDetectorRef }, { token: i1$1.Directionality, optional: true }, { token: i2.NgForm, optional: true }, { token: i2.FormGroupDirective, optional: true }, { token: i3.ErrorStateMatcher }, { token: i2.NgControl, optional: true, self: true }], target: i0.ɵɵFactoryTarget.Component });\nMatChipList.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: \"12.0.0\", version: \"13.1.0\", type: MatChipList, selector: \"mat-chip-list\", inputs: { errorStateMatcher: \"errorStateMatcher\", multiple: \"multiple\", compareWith: \"compareWith\", value: \"value\", required: \"required\", placeholder: \"placeholder\", disabled: \"disabled\", ariaOrientation: [\"aria-orientation\", \"ariaOrientation\"], selectable: \"selectable\", tabIndex: \"tabIndex\" }, outputs: { change: \"change\", valueChange: \"valueChange\" }, host: { listeners: { \"focus\": \"focus()\", \"blur\": \"_blur()\", \"keydown\": \"_keydown($event)\" }, properties: { \"attr.tabindex\": \"disabled ? null : _tabIndex\", \"attr.aria-describedby\": \"_ariaDescribedby || null\", \"attr.aria-required\": \"role ? required : null\", \"attr.aria-disabled\": \"disabled.toString()\", \"attr.aria-invalid\": \"errorState\", \"attr.aria-multiselectable\": \"multiple\", \"attr.role\": \"role\", \"class.mat-chip-list-disabled\": \"disabled\", \"class.mat-chip-list-invalid\": \"errorState\", \"class.mat-chip-list-required\": \"required\", \"attr.aria-orientation\": \"ariaOrientation\", \"id\": \"_uid\" }, classAttribute: \"mat-chip-list\" }, providers: [{ provide: MatFormFieldControl, useExisting: MatChipList }], queries: [{ propertyName: \"chips\", predicate: MatChip, descendants: true }], exportAs: [\"matChipList\"], usesInheritance: true, ngImport: i0, template: `
`, isInline: true, styles: [\".mat-chip{position:relative;box-sizing:border-box;-webkit-tap-highlight-color:transparent;transform:translateZ(0);border:none;-webkit-appearance:none;-moz-appearance:none}.mat-standard-chip{transition:box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);display:inline-flex;padding:7px 12px;border-radius:16px;align-items:center;cursor:default;min-height:32px;height:1px}._mat-animation-noopable.mat-standard-chip{transition:none;animation:none}.mat-standard-chip .mat-chip-remove{border:none;-webkit-appearance:none;-moz-appearance:none;padding:0;background:none}.mat-standard-chip .mat-chip-remove.mat-icon,.mat-standard-chip .mat-chip-remove .mat-icon{width:18px;height:18px;font-size:18px}.mat-standard-chip::after{top:0;left:0;right:0;bottom:0;position:absolute;border-radius:inherit;opacity:0;content:\\\"\\\";pointer-events:none;transition:opacity 200ms cubic-bezier(0.35, 0, 0.25, 1)}.mat-standard-chip:hover::after{opacity:.12}.mat-standard-chip:focus{outline:none}.mat-standard-chip:focus::after{opacity:.16}.cdk-high-contrast-active .mat-standard-chip{outline:solid 1px}.cdk-high-contrast-active .mat-standard-chip:focus{outline:dotted 2px}.cdk-high-contrast-active .mat-standard-chip.mat-chip-selected{outline-width:3px}.mat-standard-chip.mat-chip-disabled::after{opacity:0}.mat-standard-chip.mat-chip-disabled .mat-chip-remove,.mat-standard-chip.mat-chip-disabled .mat-chip-trailing-icon{cursor:default}.mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar,.mat-standard-chip.mat-chip-with-avatar{padding-top:0;padding-bottom:0}.mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar{padding-right:8px;padding-left:0}[dir=rtl] .mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar{padding-left:8px;padding-right:0}.mat-standard-chip.mat-chip-with-trailing-icon{padding-top:7px;padding-bottom:7px;padding-right:8px;padding-left:12px}[dir=rtl] .mat-standard-chip.mat-chip-with-trailing-icon{padding-left:8px;padding-right:12px}.mat-standard-chip.mat-chip-with-avatar{padding-left:0;padding-right:12px}[dir=rtl] .mat-standard-chip.mat-chip-with-avatar{padding-right:0;padding-left:12px}.mat-standard-chip .mat-chip-avatar{width:24px;height:24px;margin-right:8px;margin-left:4px}[dir=rtl] .mat-standard-chip .mat-chip-avatar{margin-left:8px;margin-right:4px}.mat-standard-chip .mat-chip-remove,.mat-standard-chip .mat-chip-trailing-icon{width:18px;height:18px;cursor:pointer}.mat-standard-chip .mat-chip-remove,.mat-standard-chip .mat-chip-trailing-icon{margin-left:8px;margin-right:0}[dir=rtl] .mat-standard-chip .mat-chip-remove,[dir=rtl] .mat-standard-chip .mat-chip-trailing-icon{margin-right:8px;margin-left:0}.mat-chip-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none;border-radius:inherit;overflow:hidden}.mat-chip-list-wrapper{display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;margin:-4px}.mat-chip-list-wrapper input.mat-input-element,.mat-chip-list-wrapper .mat-standard-chip{margin:4px}.mat-chip-list-stacked .mat-chip-list-wrapper{flex-direction:column;align-items:flex-start}.mat-chip-list-stacked .mat-chip-list-wrapper .mat-standard-chip{width:100%}.mat-chip-avatar{border-radius:50%;justify-content:center;align-items:center;display:flex;overflow:hidden;object-fit:cover}input.mat-chip-input{width:150px;margin:4px;flex:1 0 150px}\\n\"], changeDetection: i0.ChangeDetectionStrategy.OnPush, encapsulation: i0.ViewEncapsulation.None });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipList, decorators: [{\n type: Component,\n args: [{ selector: 'mat-chip-list', template: `
`, exportAs: 'matChipList', host: {\n '[attr.tabindex]': 'disabled ? null : _tabIndex',\n '[attr.aria-describedby]': '_ariaDescribedby || null',\n '[attr.aria-required]': 'role ? required : null',\n '[attr.aria-disabled]': 'disabled.toString()',\n '[attr.aria-invalid]': 'errorState',\n '[attr.aria-multiselectable]': 'multiple',\n '[attr.role]': 'role',\n '[class.mat-chip-list-disabled]': 'disabled',\n '[class.mat-chip-list-invalid]': 'errorState',\n '[class.mat-chip-list-required]': 'required',\n '[attr.aria-orientation]': 'ariaOrientation',\n 'class': 'mat-chip-list',\n '(focus)': 'focus()',\n '(blur)': '_blur()',\n '(keydown)': '_keydown($event)',\n '[id]': '_uid',\n }, providers: [{ provide: MatFormFieldControl, useExisting: MatChipList }], encapsulation: ViewEncapsulation.None, changeDetection: ChangeDetectionStrategy.OnPush, styles: [\".mat-chip{position:relative;box-sizing:border-box;-webkit-tap-highlight-color:transparent;transform:translateZ(0);border:none;-webkit-appearance:none;-moz-appearance:none}.mat-standard-chip{transition:box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);display:inline-flex;padding:7px 12px;border-radius:16px;align-items:center;cursor:default;min-height:32px;height:1px}._mat-animation-noopable.mat-standard-chip{transition:none;animation:none}.mat-standard-chip .mat-chip-remove{border:none;-webkit-appearance:none;-moz-appearance:none;padding:0;background:none}.mat-standard-chip .mat-chip-remove.mat-icon,.mat-standard-chip .mat-chip-remove .mat-icon{width:18px;height:18px;font-size:18px}.mat-standard-chip::after{top:0;left:0;right:0;bottom:0;position:absolute;border-radius:inherit;opacity:0;content:\\\"\\\";pointer-events:none;transition:opacity 200ms cubic-bezier(0.35, 0, 0.25, 1)}.mat-standard-chip:hover::after{opacity:.12}.mat-standard-chip:focus{outline:none}.mat-standard-chip:focus::after{opacity:.16}.cdk-high-contrast-active .mat-standard-chip{outline:solid 1px}.cdk-high-contrast-active .mat-standard-chip:focus{outline:dotted 2px}.cdk-high-contrast-active .mat-standard-chip.mat-chip-selected{outline-width:3px}.mat-standard-chip.mat-chip-disabled::after{opacity:0}.mat-standard-chip.mat-chip-disabled .mat-chip-remove,.mat-standard-chip.mat-chip-disabled .mat-chip-trailing-icon{cursor:default}.mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar,.mat-standard-chip.mat-chip-with-avatar{padding-top:0;padding-bottom:0}.mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar{padding-right:8px;padding-left:0}[dir=rtl] .mat-standard-chip.mat-chip-with-trailing-icon.mat-chip-with-avatar{padding-left:8px;padding-right:0}.mat-standard-chip.mat-chip-with-trailing-icon{padding-top:7px;padding-bottom:7px;padding-right:8px;padding-left:12px}[dir=rtl] .mat-standard-chip.mat-chip-with-trailing-icon{padding-left:8px;padding-right:12px}.mat-standard-chip.mat-chip-with-avatar{padding-left:0;padding-right:12px}[dir=rtl] .mat-standard-chip.mat-chip-with-avatar{padding-right:0;padding-left:12px}.mat-standard-chip .mat-chip-avatar{width:24px;height:24px;margin-right:8px;margin-left:4px}[dir=rtl] .mat-standard-chip .mat-chip-avatar{margin-left:8px;margin-right:4px}.mat-standard-chip .mat-chip-remove,.mat-standard-chip .mat-chip-trailing-icon{width:18px;height:18px;cursor:pointer}.mat-standard-chip .mat-chip-remove,.mat-standard-chip .mat-chip-trailing-icon{margin-left:8px;margin-right:0}[dir=rtl] .mat-standard-chip .mat-chip-remove,[dir=rtl] .mat-standard-chip .mat-chip-trailing-icon{margin-right:8px;margin-left:0}.mat-chip-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none;border-radius:inherit;overflow:hidden}.mat-chip-list-wrapper{display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;margin:-4px}.mat-chip-list-wrapper input.mat-input-element,.mat-chip-list-wrapper .mat-standard-chip{margin:4px}.mat-chip-list-stacked .mat-chip-list-wrapper{flex-direction:column;align-items:flex-start}.mat-chip-list-stacked .mat-chip-list-wrapper .mat-standard-chip{width:100%}.mat-chip-avatar{border-radius:50%;justify-content:center;align-items:center;display:flex;overflow:hidden;object-fit:cover}input.mat-chip-input{width:150px;margin:4px;flex:1 0 150px}\\n\"] }]\n }], ctorParameters: function () {\n return [{ type: i0.ElementRef }, { type: i0.ChangeDetectorRef }, { type: i1$1.Directionality, decorators: [{\n type: Optional\n }] }, { type: i2.NgForm, decorators: [{\n type: Optional\n }] }, { type: i2.FormGroupDirective, decorators: [{\n type: Optional\n }] }, { type: i3.ErrorStateMatcher }, { type: i2.NgControl, decorators: [{\n type: Optional\n }, {\n type: Self\n }] }];\n }, propDecorators: { errorStateMatcher: [{\n type: Input\n }], multiple: [{\n type: Input\n }], compareWith: [{\n type: Input\n }], value: [{\n type: Input\n }], required: [{\n type: Input\n }], placeholder: [{\n type: Input\n }], disabled: [{\n type: Input\n }], ariaOrientation: [{\n type: Input,\n args: ['aria-orientation']\n }], selectable: [{\n type: Input\n }], tabIndex: [{\n type: Input\n }], change: [{\n type: Output\n }], valueChange: [{\n type: Output\n }], chips: [{\n type: ContentChildren,\n args: [MatChip, {\n // We need to use `descendants: true`, because Ivy will no longer match\n // indirect descendants if it's left as false.\n descendants: true,\n }]\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst CHIP_DECLARATIONS = [\n MatChipList,\n MatChip,\n MatChipInput,\n MatChipRemove,\n MatChipAvatar,\n MatChipTrailingIcon,\n];\nclass MatChipsModule {\n}\nMatChipsModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipsModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nMatChipsModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipsModule, declarations: [MatChipList,\n MatChip,\n MatChipInput,\n MatChipRemove,\n MatChipAvatar,\n MatChipTrailingIcon], imports: [MatCommonModule], exports: [MatChipList,\n MatChip,\n MatChipInput,\n MatChipRemove,\n MatChipAvatar,\n MatChipTrailingIcon] });\nMatChipsModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipsModule, providers: [\n ErrorStateMatcher,\n {\n provide: MAT_CHIPS_DEFAULT_OPTIONS,\n useValue: {\n separatorKeyCodes: [ENTER],\n },\n },\n ], imports: [[MatCommonModule]] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.1.0\", ngImport: i0, type: MatChipsModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [MatCommonModule],\n exports: CHIP_DECLARATIONS,\n declarations: CHIP_DECLARATIONS,\n providers: [\n ErrorStateMatcher,\n {\n provide: MAT_CHIPS_DEFAULT_OPTIONS,\n useValue: {\n separatorKeyCodes: [ENTER],\n },\n },\n ],\n }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_CHIPS_DEFAULT_OPTIONS, MAT_CHIP_AVATAR, MAT_CHIP_REMOVE, MAT_CHIP_TRAILING_ICON, MatChip, MatChipAvatar, MatChipInput, MatChipList, MatChipListChange, MatChipRemove, MatChipSelectionChange, MatChipTrailingIcon, MatChipsModule };\n"]},"metadata":{},"sourceType":"module"}