@angular/material
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Angular Material
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JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/cdk/a11y'), require('@angular/cdk/coercion'), require('@angular/core'), require('@angular/material/core'), require('@angular/cdk/bidi'), require('@angular/cdk/keycodes'), require('@angular/cdk/overlay'), require('@angular/cdk/platform'), require('@angular/cdk/portal'), require('@angular/cdk/scrolling'), require('@angular/common'), require('@angular/forms'), require('@angular/material/form-field'), require('rxjs'), require('rxjs/operators')) :
typeof define === 'function' && define.amd ? define('@angular/material/autocomplete', ['exports', '@angular/cdk/a11y', '@angular/cdk/coercion', '@angular/core', '@angular/material/core', '@angular/cdk/bidi', '@angular/cdk/keycodes', '@angular/cdk/overlay', '@angular/cdk/platform', '@angular/cdk/portal', '@angular/cdk/scrolling', '@angular/common', '@angular/forms', '@angular/material/form-field', 'rxjs', 'rxjs/operators'], factory) :
(factory((global.ng = global.ng || {}, global.ng.material = global.ng.material || {}, global.ng.material.autocomplete = {}),global.ng.cdk.a11y,global.ng.cdk.coercion,global.ng.core,global.ng.material.core,global.ng.cdk.bidi,global.ng.cdk.keycodes,global.ng.cdk.overlay,global.ng.cdk.platform,global.ng.cdk.portal,global.ng.cdk.scrolling,global.ng.common,global.ng.forms,global.ng.material.formField,global.rxjs,global.rxjs.operators));
}(this, (function (exports,a11y,coercion,core,core$1,bidi,keycodes,overlay,platform,portal,scrolling,common,forms,formField,rxjs,operators) { 'use strict';
/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
/* global Reflect, Promise */
var extendStatics = function(d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
function __extends(d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Autocomplete IDs need to be unique across components, so this counter exists outside of
* the component definition.
* @type {?}
*/
var _uniqueAutocompleteIdCounter = 0;
/**
* Event object that is emitted when an autocomplete option is selected.
*/
var /**
* Event object that is emitted when an autocomplete option is selected.
*/
MatAutocompleteSelectedEvent = /** @class */ (function () {
function MatAutocompleteSelectedEvent(source, option) {
this.source = source;
this.option = option;
}
return MatAutocompleteSelectedEvent;
}());
// Boilerplate for applying mixins to MatAutocomplete.
/**
* \@docs-private
*/
var
// Boilerplate for applying mixins to MatAutocomplete.
/**
* \@docs-private
*/
MatAutocompleteBase = /** @class */ (function () {
function MatAutocompleteBase() {
}
return MatAutocompleteBase;
}());
/** @type {?} */
var _MatAutocompleteMixinBase = core$1.mixinDisableRipple(MatAutocompleteBase);
/**
* Injection token to be used to override the default options for `mat-autocomplete`.
* @type {?}
*/
var MAT_AUTOCOMPLETE_DEFAULT_OPTIONS = new core.InjectionToken('mat-autocomplete-default-options', {
providedIn: 'root',
factory: MAT_AUTOCOMPLETE_DEFAULT_OPTIONS_FACTORY,
});
/**
* \@docs-private
* @return {?}
*/
function MAT_AUTOCOMPLETE_DEFAULT_OPTIONS_FACTORY() {
return { autoActiveFirstOption: false };
}
var MatAutocomplete = /** @class */ (function (_super) {
__extends(MatAutocomplete, _super);
function MatAutocomplete(_changeDetectorRef, _elementRef, defaults) {
var _this = _super.call(this) || this;
_this._changeDetectorRef = _changeDetectorRef;
_this._elementRef = _elementRef;
/**
* Whether the autocomplete panel should be visible, depending on option length.
*/
_this.showPanel = false;
_this._isOpen = false;
/**
* Function that maps an option's control value to its display value in the trigger.
*/
_this.displayWith = null;
/**
* Event that is emitted whenever an option from the list is selected.
*/
_this.optionSelected = new core.EventEmitter();
/**
* Event that is emitted when the autocomplete panel is opened.
*/
_this.opened = new core.EventEmitter();
/**
* Event that is emitted when the autocomplete panel is closed.
*/
_this.closed = new core.EventEmitter();
_this._classList = {};
/**
* Unique ID to be used by autocomplete trigger's "aria-owns" property.
*/
_this.id = "mat-autocomplete-" + _uniqueAutocompleteIdCounter++;
_this._autoActiveFirstOption = !!defaults.autoActiveFirstOption;
return _this;
}
Object.defineProperty(MatAutocomplete.prototype, "isOpen", {
/** Whether the autocomplete panel is open. */
get: /**
* Whether the autocomplete panel is open.
* @return {?}
*/
function () { return this._isOpen && this.showPanel; },
enumerable: true,
configurable: true
});
Object.defineProperty(MatAutocomplete.prototype, "autoActiveFirstOption", {
/**
* Whether the first option should be highlighted when the autocomplete panel is opened.
* Can be configured globally through the `MAT_AUTOCOMPLETE_DEFAULT_OPTIONS` token.
*/
get: /**
* Whether the first option should be highlighted when the autocomplete panel is opened.
* Can be configured globally through the `MAT_AUTOCOMPLETE_DEFAULT_OPTIONS` token.
* @return {?}
*/
function () { return this._autoActiveFirstOption; },
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
this._autoActiveFirstOption = coercion.coerceBooleanProperty(value);
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatAutocomplete.prototype, "classList", {
/**
* Takes classes set on the host mat-autocomplete element and applies them to the panel
* inside the overlay container to allow for easy styling.
*/
set: /**
* Takes classes set on the host mat-autocomplete element and applies them to the panel
* inside the overlay container to allow for easy styling.
* @param {?} value
* @return {?}
*/
function (value) {
if (value && value.length) {
this._classList = value.split(' ').reduce((/**
* @param {?} classList
* @param {?} className
* @return {?}
*/
function (classList, className) {
classList[className.trim()] = true;
return classList;
}), (/** @type {?} */ ({})));
}
else {
this._classList = {};
}
this._setVisibilityClasses(this._classList);
this._elementRef.nativeElement.className = '';
},
enumerable: true,
configurable: true
});
/**
* @return {?}
*/
MatAutocomplete.prototype.ngAfterContentInit = /**
* @return {?}
*/
function () {
this._keyManager = new a11y.ActiveDescendantKeyManager(this.options).withWrap();
// Set the initial visibility state.
this._setVisibility();
};
/**
* Sets the panel scrollTop. This allows us to manually scroll to display options
* above or below the fold, as they are not actually being focused when active.
*/
/**
* Sets the panel scrollTop. This allows us to manually scroll to display options
* above or below the fold, as they are not actually being focused when active.
* @param {?} scrollTop
* @return {?}
*/
MatAutocomplete.prototype._setScrollTop = /**
* Sets the panel scrollTop. This allows us to manually scroll to display options
* above or below the fold, as they are not actually being focused when active.
* @param {?} scrollTop
* @return {?}
*/
function (scrollTop) {
if (this.panel) {
this.panel.nativeElement.scrollTop = scrollTop;
}
};
/** Returns the panel's scrollTop. */
/**
* Returns the panel's scrollTop.
* @return {?}
*/
MatAutocomplete.prototype._getScrollTop = /**
* Returns the panel's scrollTop.
* @return {?}
*/
function () {
return this.panel ? this.panel.nativeElement.scrollTop : 0;
};
/** Panel should hide itself when the option list is empty. */
/**
* Panel should hide itself when the option list is empty.
* @return {?}
*/
MatAutocomplete.prototype._setVisibility = /**
* Panel should hide itself when the option list is empty.
* @return {?}
*/
function () {
this.showPanel = !!this.options.length;
this._setVisibilityClasses(this._classList);
this._changeDetectorRef.markForCheck();
};
/** Emits the `select` event. */
/**
* Emits the `select` event.
* @param {?} option
* @return {?}
*/
MatAutocomplete.prototype._emitSelectEvent = /**
* Emits the `select` event.
* @param {?} option
* @return {?}
*/
function (option) {
/** @type {?} */
var event = new MatAutocompleteSelectedEvent(this, option);
this.optionSelected.emit(event);
};
/** Sets the autocomplete visibility classes on a classlist based on the panel is visible. */
/**
* Sets the autocomplete visibility classes on a classlist based on the panel is visible.
* @private
* @param {?} classList
* @return {?}
*/
MatAutocomplete.prototype._setVisibilityClasses = /**
* Sets the autocomplete visibility classes on a classlist based on the panel is visible.
* @private
* @param {?} classList
* @return {?}
*/
function (classList) {
classList['mat-autocomplete-visible'] = this.showPanel;
classList['mat-autocomplete-hidden'] = !this.showPanel;
};
MatAutocomplete.decorators = [
{ type: core.Component, args: [{selector: 'mat-autocomplete',
template: "<ng-template><div class=\"mat-autocomplete-panel\" role=\"listbox\" [id]=\"id\" [ngClass]=\"_classList\" #panel><ng-content></ng-content></div></ng-template>",
styles: [".mat-autocomplete-panel{min-width:112px;max-width:280px;overflow:auto;-webkit-overflow-scrolling:touch;visibility:hidden;max-width:none;max-height:256px;position:relative;width:100%;border-bottom-left-radius:4px;border-bottom-right-radius:4px}.mat-autocomplete-panel.mat-autocomplete-visible{visibility:visible}.mat-autocomplete-panel.mat-autocomplete-hidden{visibility:hidden}.mat-autocomplete-panel-above .mat-autocomplete-panel{border-radius:0;border-top-left-radius:4px;border-top-right-radius:4px}.mat-autocomplete-panel .mat-divider-horizontal{margin-top:-1px}@media (-ms-high-contrast:active){.mat-autocomplete-panel{outline:solid 1px}}"],
encapsulation: core.ViewEncapsulation.None,
changeDetection: core.ChangeDetectionStrategy.OnPush,
exportAs: 'matAutocomplete',
inputs: ['disableRipple'],
host: {
'class': 'mat-autocomplete'
},
providers: [
{ provide: core$1.MAT_OPTION_PARENT_COMPONENT, useExisting: MatAutocomplete }
]
},] },
];
/** @nocollapse */
MatAutocomplete.ctorParameters = function () { return [
{ type: core.ChangeDetectorRef },
{ type: core.ElementRef },
{ type: undefined, decorators: [{ type: core.Inject, args: [MAT_AUTOCOMPLETE_DEFAULT_OPTIONS,] }] }
]; };
MatAutocomplete.propDecorators = {
template: [{ type: core.ViewChild, args: [core.TemplateRef, { static: true },] }],
panel: [{ type: core.ViewChild, args: ['panel', { static: false },] }],
options: [{ type: core.ContentChildren, args: [core$1.MatOption, { descendants: true },] }],
optionGroups: [{ type: core.ContentChildren, args: [core$1.MatOptgroup,] }],
displayWith: [{ type: core.Input }],
autoActiveFirstOption: [{ type: core.Input }],
panelWidth: [{ type: core.Input }],
optionSelected: [{ type: core.Output }],
opened: [{ type: core.Output }],
closed: [{ type: core.Output }],
classList: [{ type: core.Input, args: ['class',] }]
};
return MatAutocomplete;
}(_MatAutocompleteMixinBase));
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Directive applied to an element to make it usable
* as a connection point for an autocomplete panel.
*/
var MatAutocompleteOrigin = /** @class */ (function () {
function MatAutocompleteOrigin(elementRef) {
this.elementRef = elementRef;
}
MatAutocompleteOrigin.decorators = [
{ type: core.Directive, args: [{
selector: '[matAutocompleteOrigin]',
exportAs: 'matAutocompleteOrigin',
},] },
];
/** @nocollapse */
MatAutocompleteOrigin.ctorParameters = function () { return [
{ type: core.ElementRef }
]; };
return MatAutocompleteOrigin;
}());
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* The height of each autocomplete option.
* @type {?}
*/
var AUTOCOMPLETE_OPTION_HEIGHT = 48;
/**
* The total height of the autocomplete panel.
* @type {?}
*/
var AUTOCOMPLETE_PANEL_HEIGHT = 256;
/**
* Injection token that determines the scroll handling while the autocomplete panel is open.
* @type {?}
*/
var MAT_AUTOCOMPLETE_SCROLL_STRATEGY = new core.InjectionToken('mat-autocomplete-scroll-strategy');
/**
* \@docs-private
* @param {?} overlay
* @return {?}
*/
function MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY(overlay$$1) {
return (/**
* @return {?}
*/
function () { return overlay$$1.scrollStrategies.reposition(); });
}
/**
* \@docs-private
* @type {?}
*/
var MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY_PROVIDER = {
provide: MAT_AUTOCOMPLETE_SCROLL_STRATEGY,
deps: [overlay.Overlay],
useFactory: MAT_AUTOCOMPLETE_SCROLL_STRATEGY_FACTORY,
};
/**
* Provider that allows the autocomplete to register as a ControlValueAccessor.
* \@docs-private
* @type {?}
*/
var MAT_AUTOCOMPLETE_VALUE_ACCESSOR = {
provide: forms.NG_VALUE_ACCESSOR,
useExisting: core.forwardRef((/**
* @return {?}
*/
function () { return MatAutocompleteTrigger; })),
multi: true
};
/**
* Creates an error to be thrown when attempting to use an autocomplete trigger without a panel.
* \@docs-private
* @return {?}
*/
function getMatAutocompleteMissingPanelError() {
return Error('Attempting to open an undefined instance of `mat-autocomplete`. ' +
'Make sure that the id passed to the `matAutocomplete` is correct and that ' +
'you\'re attempting to open it after the ngAfterContentInit hook.');
}
var MatAutocompleteTrigger = /** @class */ (function () {
function MatAutocompleteTrigger(_element, _overlay, _viewContainerRef, _zone, _changeDetectorRef, scrollStrategy, _dir, _formField, _document, _viewportRuler) {
var _this = this;
this._element = _element;
this._overlay = _overlay;
this._viewContainerRef = _viewContainerRef;
this._zone = _zone;
this._changeDetectorRef = _changeDetectorRef;
this._dir = _dir;
this._formField = _formField;
this._document = _document;
this._viewportRuler = _viewportRuler;
this._componentDestroyed = false;
this._autocompleteDisabled = false;
/**
* Whether or not the label state is being overridden.
*/
this._manuallyFloatingLabel = false;
/**
* Subscription to viewport size changes.
*/
this._viewportSubscription = rxjs.Subscription.EMPTY;
/**
* Whether the autocomplete can open the next time it is focused. Used to prevent a focused,
* closed autocomplete from being reopened if the user switches to another browser tab and then
* comes back.
*/
this._canOpenOnNextFocus = true;
/**
* Stream of keyboard events that can close the panel.
*/
this._closeKeyEventStream = new rxjs.Subject();
/**
* Event handler for when the window is blurred. Needs to be an
* arrow function in order to preserve the context.
*/
this._windowBlurHandler = (/**
* @return {?}
*/
function () {
// If the user blurred the window while the autocomplete is focused, it means that it'll be
// refocused when they come back. In this case we want to skip the first focus event, if the
// pane was closed, in order to avoid reopening it unintentionally.
_this._canOpenOnNextFocus =
_this._document.activeElement !== _this._element.nativeElement || _this.panelOpen;
});
/**
* `View -> model callback called when value changes`
*/
this._onChange = (/**
* @return {?}
*/
function () { });
/**
* `View -> model callback called when autocomplete has been touched`
*/
this._onTouched = (/**
* @return {?}
*/
function () { });
/**
* Position of the autocomplete panel relative to the trigger element. A position of `auto`
* will render the panel underneath the trigger if there is enough space for it to fit in
* the viewport, otherwise the panel will be shown above it. If the position is set to
* `above` or `below`, the panel will always be shown above or below the trigger. no matter
* whether it fits completely in the viewport.
*/
this.position = 'auto';
/**
* `autocomplete` attribute to be set on the input element.
* \@docs-private
*/
this.autocompleteAttribute = 'off';
this._overlayAttached = false;
/**
* Stream of autocomplete option selections.
*/
this.optionSelections = (/** @type {?} */ (rxjs.defer((/**
* @return {?}
*/
function () {
if (_this.autocomplete && _this.autocomplete.options) {
return rxjs.merge.apply(void 0, _this.autocomplete.options.map((/**
* @param {?} option
* @return {?}
*/
function (option) { return option.onSelectionChange; })));
}
// If there are any subscribers before `ngAfterViewInit`, the `autocomplete` will be undefined.
// Return a stream that we'll replace with the real one once everything is in place.
return _this._zone.onStable
.asObservable()
.pipe(operators.take(1), operators.switchMap((/**
* @return {?}
*/
function () { return _this.optionSelections; })));
}))));
this._scrollStrategy = scrollStrategy;
}
Object.defineProperty(MatAutocompleteTrigger.prototype, "autocompleteDisabled", {
/**
* Whether the autocomplete is disabled. When disabled, the element will
* act as a regular input and the user won't be able to open the panel.
*/
get: /**
* Whether the autocomplete is disabled. When disabled, the element will
* act as a regular input and the user won't be able to open the panel.
* @return {?}
*/
function () { return this._autocompleteDisabled; },
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
this._autocompleteDisabled = coercion.coerceBooleanProperty(value);
},
enumerable: true,
configurable: true
});
/**
* @return {?}
*/
MatAutocompleteTrigger.prototype.ngAfterViewInit = /**
* @return {?}
*/
function () {
var _this = this;
if (typeof window !== 'undefined') {
this._zone.runOutsideAngular((/**
* @return {?}
*/
function () {
window.addEventListener('blur', _this._windowBlurHandler);
}));
if (platform._supportsShadowDom()) {
/** @type {?} */
var element = this._element.nativeElement;
/** @type {?} */
var rootNode = element.getRootNode ? element.getRootNode() : null;
// We need to take the `ShadowRoot` off of `window`, because the built-in types are
// incorrect. See https://github.com/Microsoft/TypeScript/issues/27929.
this._isInsideShadowRoot = rootNode instanceof ((/** @type {?} */ (window))).ShadowRoot;
}
}
};
/**
* @param {?} changes
* @return {?}
*/
MatAutocompleteTrigger.prototype.ngOnChanges = /**
* @param {?} changes
* @return {?}
*/
function (changes) {
if (changes['position'] && this._positionStrategy) {
this._setStrategyPositions(this._positionStrategy);
if (this.panelOpen) {
(/** @type {?} */ (this._overlayRef)).updatePosition();
}
}
};
/**
* @return {?}
*/
MatAutocompleteTrigger.prototype.ngOnDestroy = /**
* @return {?}
*/
function () {
if (typeof window !== 'undefined') {
window.removeEventListener('blur', this._windowBlurHandler);
}
this._viewportSubscription.unsubscribe();
this._componentDestroyed = true;
this._destroyPanel();
this._closeKeyEventStream.complete();
};
Object.defineProperty(MatAutocompleteTrigger.prototype, "panelOpen", {
/** Whether or not the autocomplete panel is open. */
get: /**
* Whether or not the autocomplete panel is open.
* @return {?}
*/
function () {
return this._overlayAttached && this.autocomplete.showPanel;
},
enumerable: true,
configurable: true
});
/** Opens the autocomplete suggestion panel. */
/**
* Opens the autocomplete suggestion panel.
* @return {?}
*/
MatAutocompleteTrigger.prototype.openPanel = /**
* Opens the autocomplete suggestion panel.
* @return {?}
*/
function () {
this._attachOverlay();
this._floatLabel();
};
/** Closes the autocomplete suggestion panel. */
/**
* Closes the autocomplete suggestion panel.
* @return {?}
*/
MatAutocompleteTrigger.prototype.closePanel = /**
* Closes the autocomplete suggestion panel.
* @return {?}
*/
function () {
this._resetLabel();
if (!this._overlayAttached) {
return;
}
if (this.panelOpen) {
// Only emit if the panel was visible.
this.autocomplete.closed.emit();
}
this.autocomplete._isOpen = this._overlayAttached = false;
if (this._overlayRef && this._overlayRef.hasAttached()) {
this._overlayRef.detach();
this._closingActionsSubscription.unsubscribe();
}
// Note that in some cases this can end up being called after the component is destroyed.
// Add a check to ensure that we don't try to run change detection on a destroyed view.
if (!this._componentDestroyed) {
// We need to trigger change detection manually, because
// `fromEvent` doesn't seem to do it at the proper time.
// This ensures that the label is reset when the
// user clicks outside.
this._changeDetectorRef.detectChanges();
}
};
/**
* Updates the position of the autocomplete suggestion panel to ensure that it fits all options
* within the viewport.
*/
/**
* Updates the position of the autocomplete suggestion panel to ensure that it fits all options
* within the viewport.
* @return {?}
*/
MatAutocompleteTrigger.prototype.updatePosition = /**
* Updates the position of the autocomplete suggestion panel to ensure that it fits all options
* within the viewport.
* @return {?}
*/
function () {
if (this._overlayAttached) {
(/** @type {?} */ (this._overlayRef)).updatePosition();
}
};
Object.defineProperty(MatAutocompleteTrigger.prototype, "panelClosingActions", {
/**
* A stream of actions that should close the autocomplete panel, including
* when an option is selected, on blur, and when TAB is pressed.
*/
get: /**
* A stream of actions that should close the autocomplete panel, including
* when an option is selected, on blur, and when TAB is pressed.
* @return {?}
*/
function () {
var _this = this;
return rxjs.merge(this.optionSelections, this.autocomplete._keyManager.tabOut.pipe(operators.filter((/**
* @return {?}
*/
function () { return _this._overlayAttached; }))), this._closeKeyEventStream, this._getOutsideClickStream(), this._overlayRef ?
this._overlayRef.detachments().pipe(operators.filter((/**
* @return {?}
*/
function () { return _this._overlayAttached; }))) :
rxjs.of()).pipe(
// Normalize the output so we return a consistent type.
operators.map((/**
* @param {?} event
* @return {?}
*/
function (event) { return event instanceof core$1.MatOptionSelectionChange ? event : null; })));
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatAutocompleteTrigger.prototype, "activeOption", {
/** The currently active option, coerced to MatOption type. */
get: /**
* The currently active option, coerced to MatOption type.
* @return {?}
*/
function () {
if (this.autocomplete && this.autocomplete._keyManager) {
return this.autocomplete._keyManager.activeItem;
}
return null;
},
enumerable: true,
configurable: true
});
/** Stream of clicks outside of the autocomplete panel. */
/**
* Stream of clicks outside of the autocomplete panel.
* @private
* @return {?}
*/
MatAutocompleteTrigger.prototype._getOutsideClickStream = /**
* Stream of clicks outside of the autocomplete panel.
* @private
* @return {?}
*/
function () {
var _this = this;
return rxjs.merge((/** @type {?} */ (rxjs.fromEvent(this._document, 'click'))), (/** @type {?} */ (rxjs.fromEvent(this._document, 'touchend'))))
.pipe(operators.filter((/**
* @param {?} event
* @return {?}
*/
function (event) {
// If we're in the Shadow DOM, the event target will be the shadow root, so we have to
// fall back to check the first element in the path of the click event.
/** @type {?} */
var clickTarget = (/** @type {?} */ ((_this._isInsideShadowRoot && event.composedPath ? event.composedPath()[0] :
event.target)));
/** @type {?} */
var formField$$1 = _this._formField ? _this._formField._elementRef.nativeElement : null;
return _this._overlayAttached && clickTarget !== _this._element.nativeElement &&
(!formField$$1 || !formField$$1.contains(clickTarget)) &&
(!!_this._overlayRef && !_this._overlayRef.overlayElement.contains(clickTarget));
})));
};
// Implemented as part of ControlValueAccessor.
// Implemented as part of ControlValueAccessor.
/**
* @param {?} value
* @return {?}
*/
MatAutocompleteTrigger.prototype.writeValue =
// Implemented as part of ControlValueAccessor.
/**
* @param {?} value
* @return {?}
*/
function (value) {
var _this = this;
Promise.resolve(null).then((/**
* @return {?}
*/
function () { return _this._setTriggerValue(value); }));
};
// Implemented as part of ControlValueAccessor.
// Implemented as part of ControlValueAccessor.
/**
* @param {?} fn
* @return {?}
*/
MatAutocompleteTrigger.prototype.registerOnChange =
// Implemented as part of ControlValueAccessor.
/**
* @param {?} fn
* @return {?}
*/
function (fn) {
this._onChange = fn;
};
// Implemented as part of ControlValueAccessor.
// Implemented as part of ControlValueAccessor.
/**
* @param {?} fn
* @return {?}
*/
MatAutocompleteTrigger.prototype.registerOnTouched =
// Implemented as part of ControlValueAccessor.
/**
* @param {?} fn
* @return {?}
*/
function (fn) {
this._onTouched = fn;
};
// Implemented as part of ControlValueAccessor.
// Implemented as part of ControlValueAccessor.
/**
* @param {?} isDisabled
* @return {?}
*/
MatAutocompleteTrigger.prototype.setDisabledState =
// Implemented as part of ControlValueAccessor.
/**
* @param {?} isDisabled
* @return {?}
*/
function (isDisabled) {
this._element.nativeElement.disabled = isDisabled;
};
/**
* @param {?} event
* @return {?}
*/
MatAutocompleteTrigger.prototype._handleKeydown = /**
* @param {?} event
* @return {?}
*/
function (event) {
/** @type {?} */
var keyCode = event.keyCode;
// Prevent the default action on all escape key presses. This is here primarily to bring IE
// in line with other browsers. By default, pressing escape on IE will cause it to revert
// the input value to the one that it had on focus, however it won't dispatch any events
// which means that the model value will be out of sync with the view.
if (keyCode === keycodes.ESCAPE) {
event.preventDefault();
}
if (this.activeOption && keyCode === keycodes.ENTER && this.panelOpen) {
this.activeOption._selectViaInteraction();
this._resetActiveItem();
event.preventDefault();
}
else if (this.autocomplete) {
/** @type {?} */
var prevActiveItem = this.autocomplete._keyManager.activeItem;
/** @type {?} */
var isArrowKey = keyCode === keycodes.UP_ARROW || keyCode === keycodes.DOWN_ARROW;
if (this.panelOpen || keyCode === keycodes.TAB) {
this.autocomplete._keyManager.onKeydown(event);
}
else if (isArrowKey && this._canOpen()) {
this.openPanel();
}
if (isArrowKey || this.autocomplete._keyManager.activeItem !== prevActiveItem) {
this._scrollToOption();
}
}
};
/**
* @param {?} event
* @return {?}
*/
MatAutocompleteTrigger.prototype._handleInput = /**
* @param {?} event
* @return {?}
*/
function (event) {
/** @type {?} */
var target = (/** @type {?} */ (event.target));
/** @type {?} */
var value = target.value;
// Based on `NumberValueAccessor` from forms.
if (target.type === 'number') {
value = value == '' ? null : parseFloat(value);
}
// If the input has a placeholder, IE will fire the `input` event on page load,
// focus and blur, in addition to when the user actually changed the value. To
// filter out all of the extra events, we save the value on focus and between
// `input` events, and we check whether it changed.
// See: https://connect.microsoft.com/IE/feedback/details/885747/
if (this._previousValue !== value) {
this._previousValue = value;
this._onChange(value);
if (this._canOpen() && this._document.activeElement === event.target) {
this.openPanel();
}
}
};
/**
* @return {?}
*/
MatAutocompleteTrigger.prototype._handleFocus = /**
* @return {?}
*/
function () {
if (!this._canOpenOnNextFocus) {
this._canOpenOnNextFocus = true;
}
else if (this._canOpen()) {
this._previousValue = this._element.nativeElement.value;
this._attachOverlay();
this._floatLabel(true);
}
};
/**
* In "auto" mode, the label will animate down as soon as focus is lost.
* This causes the value to jump when selecting an option with the mouse.
* This method manually floats the label until the panel can be closed.
* @param shouldAnimate Whether the label should be animated when it is floated.
*/
/**
* In "auto" mode, the label will animate down as soon as focus is lost.
* This causes the value to jump when selecting an option with the mouse.
* This method manually floats the label until the panel can be closed.
* @private
* @param {?=} shouldAnimate Whether the label should be animated when it is floated.
* @return {?}
*/
MatAutocompleteTrigger.prototype._floatLabel = /**
* In "auto" mode, the label will animate down as soon as focus is lost.
* This causes the value to jump when selecting an option with the mouse.
* This method manually floats the label until the panel can be closed.
* @private
* @param {?=} shouldAnimate Whether the label should be animated when it is floated.
* @return {?}
*/
function (shouldAnimate) {
if (shouldAnimate === void 0) { shouldAnimate = false; }
if (this._formField && this._formField.floatLabel === 'auto') {
if (shouldAnimate) {
this._formField._animateAndLockLabel();
}
else {
this._formField.floatLabel = 'always';
}
this._manuallyFloatingLabel = true;
}
};
/** If the label has been manually elevated, return it to its normal state. */
/**
* If the label has been manually elevated, return it to its normal state.
* @private
* @return {?}
*/
MatAutocompleteTrigger.prototype._resetLabel = /**
* If the label has been manually elevated, return it to its normal state.
* @private
* @return {?}
*/
function () {
if (this._manuallyFloatingLabel) {
this._formField.floatLabel = 'auto';
this._manuallyFloatingLabel = false;
}
};
/**
* Given that we are not actually focusing active options, we must manually adjust scroll
* to reveal options below the fold. First, we find the offset of the option from the top
* of the panel. If that offset is below the fold, the new scrollTop will be the offset -
* the panel height + the option height, so the active option will be just visible at the
* bottom of the panel. If that offset is above the top of the visible panel, the new scrollTop
* will become the offset. If that offset is visible within the panel already, the scrollTop is
* not adjusted.
*/
/**
* Given that we are not actually focusing active options, we must manually adjust scroll
* to reveal options below the fold. First, we find the offset of the option from the top
* of the panel. If that offset is below the fold, the new scrollTop will be the offset -
* the panel height + the option height, so the active option will be just visible at the
* bottom of the panel. If that offset is above the top of the visible panel, the new scrollTop
* will become the offset. If that offset is visible within the panel already, the scrollTop is
* not adjusted.
* @private
* @return {?}
*/
MatAutocompleteTrigger.prototype._scrollToOption = /**
* Given that we are not actually focusing active options, we must manually adjust scroll
* to reveal options below the fold. First, we find the offset of the option from the top
* of the panel. If that offset is below the fold, the new scrollTop will be the offset -
* the panel height + the option height, so the active option will be just visible at the
* bottom of the panel. If that offset is above the top of the visible panel, the new scrollTop
* will become the offset. If that offset is visible within the panel already, the scrollTop is
* not adjusted.
* @private
* @return {?}
*/
function () {
/** @type {?} */
var index = this.autocomplete._keyManager.activeItemIndex || 0;
/** @type {?} */
var labelCount = core$1._countGroupLabelsBeforeOption(index, this.autocomplete.options, this.autocomplete.optionGroups);
if (index === 0 && labelCount === 1) {
// If we've got one group label before the option and we're at the top option,
// scroll the list to the top. This is better UX than scrolling the list to the
// top of the option, because it allows the user to read the top group's label.
this.autocomplete._setScrollTop(0);
}
else {
/** @type {?} */
var newScrollPosition = core$1._getOptionScrollPosition(index + labelCount, AUTOCOMPLETE_OPTION_HEIGHT, this.autocomplete._getScrollTop(), AUTOCOMPLETE_PANEL_HEIGHT);
this.autocomplete._setScrollTop(newScrollPosition);
}
};
/**
* This method listens to a stream of panel closing actions and resets the
* stream every time the option list changes.
*/
/**
* This method listens to a stream of panel closing actions and resets the
* stream every time the option list changes.
* @private
* @return {?}
*/
MatAutocompleteTrigger.prototype._subscribeToClosingActions = /**
* This method listens to a stream of panel closing actions and resets the
* stream every time the option list changes.
* @private
* @return {?}
*/
function () {
var _this = this;
/** @type {?} */
var firstStable = this._zone.onStable.asObservable().pipe(operators.take(1));
/** @type {?} */
var optionChanges = this.autocomplete.options.changes.pipe(operators.tap((/**
* @return {?}
*/
function () { return _this._positionStrategy.reapplyLastPosition(); })),
// Defer emitting to the stream until the next tick, because changing
// bindings in here will cause "changed after checked" errors.
operators.delay(0));
// When the zone is stable initially, and when the option list changes...
return rxjs.merge(firstStable, optionChanges)
.pipe(
// create a new stream of panelClosingActions, replacing any previous streams
// that were created, and flatten it so our stream only emits closing events...
operators.switchMap((/**
* @return {?}
*/
function () {
/** @type {?} */
var wasOpen = _this.panelOpen;
_this._resetActiveItem();
_this.autocomplete._setVisibility();
if (_this.panelOpen) {
(/** @type {?} */ (_this._overlayRef)).updatePosition();
// If the `panelOpen` state changed, we need to make sure to emit the `opened`
// event, because we may not have emitted it when the panel was attached. This
// can happen if the users opens the panel and there are no options, but the
// options come in slightly later or as a result of the value changing.
if (wasOpen !== _this.panelOpen) {
_this.autocomplete.opened.emit();
}
}
return _this.panelClosingActions;
})),
// when the first closing event occurs...
operators.take(1))
// set the value, close the panel, and complete.
.subscribe((/**
* @param {?} event
* @return {?}
*/
function (event) { return _this._setValueAndClose(event); }));
};
/** Destroys the autocomplete suggestion panel. */
/**
* Destroys the autocomplete suggestion panel.
* @private
* @return {?}
*/
MatAutocompleteTrigger.prototype._destroyPanel = /**
* Destroys the autocomplete suggestion panel.
* @private
* @return {?}
*/
function () {
if (this._overlayRef) {
this.closePanel();
this._overlayRef.dispose();
this._overlayRef = null;
}
};
/**
* @private
* @param {?} value
* @return {?}
*/
MatAutocompleteTrigger.prototype._setTriggerValue = /**
* @private
* @param {?} value
* @return {?}
*/
function (value) {
/** @type {?} */
var toDisplay = this.autocomplete && this.autocomplete.displayWith ?
this.autocomplete.displayWith(value) :
value;
// Simply falling back to an empty string if the display value is falsy does not work properly.
// The display value can also be the number zero and shouldn't fall back to an empty string.
/** @type {?} */
var inputValue = toDisplay != null ? toDisplay : '';
// If it's used within a `MatFormField`, we should set it through the property so it can go
// through change detection.
if (this._formField) {
this._formField._control.value = inputValue;
}
else {
this._element.nativeElement.value = inputValue;
}
this._previousValue = inputValue;
};
/**
* This method closes the panel, and if a value is specified, also sets the associated
* control to that value. It will also mark the control as dirty if this interaction
* stemmed from the user.
*/
/**
* This method closes the panel, and if a value is specified, also sets the associated
* control to that value. It will also mark the control as dirty if this interaction
* stemmed from the user.
* @private
* @param {?} event
* @return {?}
*/
MatAutocompleteTrigger.prototype._setValueAndClose = /**
* This method closes the panel, and if a value is specified, also sets the associated
* control to that value. It will also mark the control as dirty if this interaction
* stemmed from the user.
* @private
* @param {?} event
* @return {?}
*/
function (event) {
if (event && event.source) {
this._clearPreviousSelectedOption(event.source);
this._setTriggerValue(event.source.value);
this._onChange(event.source.value);
this._element.nativeElement.focus();
this.autocomplete._emitSelectEvent(event.source);
}
this.closePanel();
};
/**
* Clear any previous selected option and emit a selection change event for this option
*/
/**
* Clear any previous selected option and emit a selection change event for this option
* @private
* @param {?} skip
* @return {?}
*/
MatAutocompleteTrigger.prototype._clearPreviousSelectedOption = /**
* Clear any previous selected option and emit a selection change event for this option
* @private
* @param {?} skip
* @return {?}
*/
function (skip) {
this.autocomplete.options.forEach((/**
* @param {?} option
* @return {?}
*/
function (option) {
if (option != skip && option.selected) {
option.deselect();
}
}));
};
/**
* @private
* @return {?}
*/
MatAutocompleteTrigger.prototype._attachOverlay = /**
* @private
* @return {?}
*/
function () {
var _this = this;
if (!this.autocomplete) {
throw getMatAutocompleteMissingPanelError();
}
/** @type {?} */
var overlayRef = this._overlayRef;
if (!overlayRef) {
this._portal = new portal.TemplatePortal(this.autocomplete.template, this._viewContainerRef);
overlayRef = this._overlay.create(this._getOverlayConfig());
this._overlayRef = overlayRef;
// Use the `keydownEvents` in order to take advantage of
// the overlay event targeting provided by the CDK overlay.
overlayRef.keydownEvents().subscribe((/**
* @param {?} event
* @return {?}
*/
function (event) {
// Close when pressing ESCAPE or ALT + UP_ARROW, based on the a11y guidelines.
// See: https://www.w3.org/TR/wai-aria-practices-1.1/#textbox-keyboard-interaction
if (event.keyCode === keycodes.ESCAPE || (event.keyCode === keycodes.UP_ARROW && event.altKey)) {
_this._resetActiveItem();
_this._closeKeyEventStream.next();
// We need to stop propagation, otherwise the event will eventually
// reach the input itself and cause the overlay to be reopened.
event.stopPropagation();
event.preventDefault();
}
}));
if (this._viewportRuler) {
this._viewportSubscription = this._viewportRuler.change().subscribe((/**
* @return {?}
*/
function () {
if (_this.panelOpen && overlayRef) {
overlayRef.updateSize({ width: _this._getPanelWidth() });
}
}));
}
}
else {
// Update the trigger, panel width and direction, in case anything has changed.
this._positionStrategy.setOrigin(this._getConnectedElement());
overlayRef.updateSize({ width: this._getPanelWidth() });
}
if (overlayRef && !overlayRef.hasAttached()) {
overlayRef.attach(this._portal);
this._closingActionsSubscription = this._subscribeToClosingActions();
}
/** @type {?} */
var wasOpen = this.panelOpen;
this.autocomplete._setVisibility();
this.autocomplete._isOpen = this._overlayAttached = true;
// We need to do an extra `panelOpen` check in here, because the
// autocomplete won't be shown if there are no options.
if (this.panelOpen && wasOpen !== this.panelOpen) {
this.autocomplete.opened.emit();
}
};
/**
* @private
* @return {?}
*/
MatAutocompleteTrigger.prototype._getOverlayConfig = /**
* @private
* @return {?}
*/
function () {
return new overlay.OverlayConfig({
positionStrategy: this._getOverlayPosition(),
scrollStrategy: this._scrollStrategy(),
width: this._getPanelWidth(),
direction: this._dir
});
};
/**
* @private
* @return {?}
*/
MatAutocompleteTrigger.prototype._getOverlayPosition = /**
* @private
* @return {?}
*/
function () {
/** @type {?} */
var strategy = this._overlay.position()
.flexibleConnectedTo(this._getConnectedElement())
.withFlexibleDimensions(false)
.withPush(false);
this._setStrategyPositions(strategy);
this._positionStrategy = strategy;
return strategy;
};
/** Sets the positions on a position strategy based on the directive's input state. */
/**
* Sets the positions on a position strategy based on the direc