/** * @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/animations'), require('@angular/cdk/a11y'), require('@angular/cdk/bidi'), require('@angular/cdk/coercion'), require('@angular/cdk/collections'), require('@angular/cdk/keycodes'), require('@angular/cdk/overlay'), require('@angular/cdk/scrolling'), require('@angular/core'), require('@angular/forms'), require('@angular/material/core'), require('@angular/material/form-field'), require('rxjs'), require('rxjs/operators'), require('@angular/common')) : typeof define === 'function' && define.amd ? define('@angular/material/select', ['exports', '@angular/animations', '@angular/cdk/a11y', '@angular/cdk/bidi', '@angular/cdk/coercion', '@angular/cdk/collections', '@angular/cdk/keycodes', '@angular/cdk/overlay', '@angular/cdk/scrolling', '@angular/core', '@angular/forms', '@angular/material/core', '@angular/material/form-field', 'rxjs', 'rxjs/operators', '@angular/common'], factory) : (factory((global.ng = global.ng || {}, global.ng.material = global.ng.material || {}, global.ng.material.select = {}),global.ng.animations,global.ng.cdk.a11y,global.ng.cdk.bidi,global.ng.cdk.coercion,global.ng.cdk.collections,global.ng.cdk.keycodes,global.ng.cdk.overlay,global.ng.cdk.scrolling,global.ng.core,global.ng.forms,global.ng.material.core,global.ng.material.formField,global.rxjs,global.rxjs.operators,global.ng.common)); }(this, (function (exports,animations,a11y,bidi,coercion,collections,keycodes,overlay,scrolling,core,forms,core$1,formField,rxjs,operators,common) { '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 */ /** * The following are all the animations for the mat-select component, with each * const containing the metadata for one animation. * * The values below match the implementation of the AngularJS Material mat-select animation. * \@docs-private * @type {?} */ var matSelectAnimations = { /** * This animation ensures the select's overlay panel animation (transformPanel) is called when * closing the select. * This is needed due to https://github.com/angular/angular/issues/23302 */ transformPanelWrap: animations.trigger('transformPanelWrap', [ animations.transition('* => void', animations.query('@transformPanel', [animations.animateChild()], { optional: true })) ]), /** * This animation transforms the select's overlay panel on and off the page. * * When the panel is attached to the DOM, it expands its width by the amount of padding, scales it * up to 100% on the Y axis, fades in its border, and translates slightly up and to the * side to ensure the option text correctly overlaps the trigger text. * * When the panel is removed from the DOM, it simply fades out linearly. */ transformPanel: animations.trigger('transformPanel', [ animations.state('void', animations.style({ transform: 'scaleY(0.8)', minWidth: '100%', opacity: 0 })), animations.state('showing', animations.style({ opacity: 1, minWidth: 'calc(100% + 32px)', // 32px = 2 * 16px padding transform: 'scaleY(1)' })), animations.state('showing-multiple', animations.style({ opacity: 1, minWidth: 'calc(100% + 64px)', // 64px = 48px padding on the left + 16px padding on the right transform: 'scaleY(1)' })), animations.transition('void => *', animations.animate('120ms cubic-bezier(0, 0, 0.2, 1)')), animations.transition('* => void', animations.animate('100ms 25ms linear', animations.style({ opacity: 0 }))) ]), /** * This animation fades in the background color and text content of the * select's options. It is time delayed to occur 100ms after the overlay * panel has transformed in. * @deprecated Not used anymore. To be removed. * \@breaking-change 8.0.0 */ fadeInContent: animations.trigger('fadeInContent', [ animations.state('showing', animations.style({ opacity: 1 })), animations.transition('void => showing', [ animations.style({ opacity: 0 }), animations.animate('150ms 100ms cubic-bezier(0.55, 0, 0.55, 0.2)') ]) ]) }; /** * @deprecated * \@breaking-change 8.0.0 * \@docs-private * @type {?} */ var transformPanel = matSelectAnimations.transformPanel; /** * @deprecated * \@breaking-change 8.0.0 * \@docs-private * @type {?} */ var fadeInContent = matSelectAnimations.fadeInContent; /** * @fileoverview added by tsickle * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc */ /** * Returns an exception to be thrown when attempting to change a select's `multiple` option * after initialization. * \@docs-private * @return {?} */ function getMatSelectDynamicMultipleError() { return Error('Cannot change `multiple` mode of select after initialization.'); } /** * Returns an exception to be thrown when attempting to assign a non-array value to a select * in `multiple` mode. Note that `undefined` and `null` are still valid values to allow for * resetting the value. * \@docs-private * @return {?} */ function getMatSelectNonArrayValueError() { return Error('Value must be an array in multiple-selection mode.'); } /** * Returns an exception to be thrown when assigning a non-function value to the comparator * used to determine if a value corresponds to an option. Note that whether the function * actually takes two values and returns a boolean is not checked. * @return {?} */ function getMatSelectNonFunctionValueError() { return Error('`compareWith` must be a function.'); } /** * @fileoverview added by tsickle * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc */ /** @type {?} */ var nextUniqueId = 0; /** * The max height of the select's overlay panel * @type {?} */ var SELECT_PANEL_MAX_HEIGHT = 256; /** * The panel's padding on the x-axis * @type {?} */ var SELECT_PANEL_PADDING_X = 16; /** * The panel's x axis padding if it is indented (e.g. there is an option group). * @type {?} */ var SELECT_PANEL_INDENT_PADDING_X = SELECT_PANEL_PADDING_X * 2; /** * The height of the select items in `em` units. * @type {?} */ var SELECT_ITEM_HEIGHT_EM = 3; // TODO(josephperrott): Revert to a constant after 2018 spec updates are fully merged. /** * Distance between the panel edge and the option text in * multi-selection mode. * * Calculated as: * (SELECT_PANEL_PADDING_X * 1.5) + 16 = 40 * The padding is multiplied by 1.5 because the checkbox's margin is half the padding. * The checkbox width is 16px. * @type {?} */ var SELECT_MULTIPLE_PANEL_PADDING_X = SELECT_PANEL_PADDING_X * 1.5 + 16; /** * The select panel will only "fit" inside the viewport if it is positioned at * this value or more away from the viewport boundary. * @type {?} */ var SELECT_PANEL_VIEWPORT_PADDING = 8; /** * Injection token that determines the scroll handling while a select is open. * @type {?} */ var MAT_SELECT_SCROLL_STRATEGY = new core.InjectionToken('mat-select-scroll-strategy'); /** * \@docs-private * @param {?} overlay * @return {?} */ function MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY(overlay$$1) { return (/** * @return {?} */ function () { return overlay$$1.scrollStrategies.reposition(); }); } /** * \@docs-private * @type {?} */ var MAT_SELECT_SCROLL_STRATEGY_PROVIDER = { provide: MAT_SELECT_SCROLL_STRATEGY, deps: [overlay.Overlay], useFactory: MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY, }; /** * Change event object that is emitted when the select value has changed. */ var /** * Change event object that is emitted when the select value has changed. */ MatSelectChange = /** @class */ (function () { function MatSelectChange(source, value) { this.source = source; this.value = value; } return MatSelectChange; }()); // Boilerplate for applying mixins to MatSelect. /** * \@docs-private */ var // Boilerplate for applying mixins to MatSelect. /** * \@docs-private */ MatSelectBase = /** @class */ (function () { function MatSelectBase(_elementRef, _defaultErrorStateMatcher, _parentForm, _parentFormGroup, ngControl) { this._elementRef = _elementRef; this._defaultErrorStateMatcher = _defaultErrorStateMatcher; this._parentForm = _parentForm; this._parentFormGroup = _parentFormGroup; this.ngControl = ngControl; } return MatSelectBase; }()); /** @type {?} */ var _MatSelectMixinBase = core$1.mixinDisableRipple(core$1.mixinTabIndex(core$1.mixinDisabled(core$1.mixinErrorState(MatSelectBase)))); /** * Allows the user to customize the trigger that is displayed when the select has a value. */ var MatSelectTrigger = /** @class */ (function () { function MatSelectTrigger() { } MatSelectTrigger.decorators = [ { type: core.Directive, args: [{ selector: 'mat-select-trigger' },] }, ]; return MatSelectTrigger; }()); var MatSelect = /** @class */ (function (_super) { __extends(MatSelect, _super); function MatSelect(_viewportRuler, _changeDetectorRef, _ngZone, _defaultErrorStateMatcher, elementRef, _dir, _parentForm, _parentFormGroup, _parentFormField, ngControl, tabIndex, scrollStrategyFactory, _liveAnnouncer) { var _this = _super.call(this, elementRef, _defaultErrorStateMatcher, _parentForm, _parentFormGroup, ngControl) || this; _this._viewportRuler = _viewportRuler; _this._changeDetectorRef = _changeDetectorRef; _this._ngZone = _ngZone; _this._dir = _dir; _this._parentFormField = _parentFormField; _this.ngControl = ngControl; _this._liveAnnouncer = _liveAnnouncer; /** * Whether or not the overlay panel is open. */ _this._panelOpen = false; /** * Whether filling out the select is required in the form. */ _this._required = false; /** * The scroll position of the overlay panel, calculated to center the selected option. */ _this._scrollTop = 0; /** * Whether the component is in multiple selection mode. */ _this._multiple = false; /** * Comparison function to specify which option is displayed. Defaults to object equality. */ _this._compareWith = (/** * @param {?} o1 * @param {?} o2 * @return {?} */ function (o1, o2) { return o1 === o2; }); /** * Unique id for this input. */ _this._uid = "mat-select-" + nextUniqueId++; /** * Emits whenever the component is destroyed. */ _this._destroy = new rxjs.Subject(); /** * The cached font-size of the trigger element. */ _this._triggerFontSize = 0; /** * `View -> model callback called when value changes` */ _this._onChange = (/** * @return {?} */ function () { }); /** * `View -> model callback called when select has been touched` */ _this._onTouched = (/** * @return {?} */ function () { }); /** * The IDs of child options to be passed to the aria-owns attribute. */ _this._optionIds = ''; /** * The value of the select panel's transform-origin property. */ _this._transformOrigin = 'top'; /** * Emits when the panel element is finished transforming in. */ _this._panelDoneAnimatingStream = new rxjs.Subject(); /** * The y-offset of the overlay panel in relation to the trigger's top start corner. * This must be adjusted to align the selected option text over the trigger text. * when the panel opens. Will change based on the y-position of the selected option. */ _this._offsetY = 0; /** * This position config ensures that the top "start" corner of the overlay * is aligned with with the top "start" of the origin by default (overlapping * the trigger completely). If the panel cannot fit below the trigger, it * will fall back to a position above the trigger. */ _this._positions = [ { originX: 'start', originY: 'top', overlayX: 'start', overlayY: 'top', }, { originX: 'start', originY: 'bottom', overlayX: 'start', overlayY: 'bottom', }, ]; /** * Whether the component is disabling centering of the active option over the trigger. */ _this._disableOptionCentering = false; _this._focused = false; /** * A name for this control that can be used by `mat-form-field`. */ _this.controlType = 'mat-select'; /** * Aria label of the select. If not specified, the placeholder will be used as label. */ _this.ariaLabel = ''; /** * Combined stream of all of the child options' change events. */ _this.optionSelectionChanges = (/** @type {?} */ (rxjs.defer((/** * @return {?} */ function () { /** @type {?} */ var options = _this.options; if (options) { return options.changes.pipe(operators.startWith(options), operators.switchMap((/** * @return {?} */ function () { return rxjs.merge.apply(void 0, options.map((/** * @param {?} option * @return {?} */ function (option) { return option.onSelectionChange; }))); }))); } return _this._ngZone.onStable .asObservable() .pipe(operators.take(1), operators.switchMap((/** * @return {?} */ function () { return _this.optionSelectionChanges; }))); })))); /** * Event emitted when the select panel has been toggled. */ _this.openedChange = new core.EventEmitter(); /** * Event emitted when the select has been opened. */ _this._openedStream = _this.openedChange.pipe(operators.filter((/** * @param {?} o * @return {?} */ function (o) { return o; })), operators.map((/** * @return {?} */ function () { }))); /** * Event emitted when the select has been closed. */ _this._closedStream = _this.openedChange.pipe(operators.filter((/** * @param {?} o * @return {?} */ function (o) { return !o; })), operators.map((/** * @return {?} */ function () { }))); /** * Event emitted when the selected value has been changed by the user. */ _this.selectionChange = new core.EventEmitter(); /** * Event that emits whenever the raw value of the select changes. This is here primarily * to facilitate the two-way binding for the `value` input. * \@docs-private */ _this.valueChange = new core.EventEmitter(); if (_this.ngControl) { // Note: we provide the value accessor through here, instead of // the `providers` to avoid running into a circular import. _this.ngControl.valueAccessor = _this; } _this._scrollStrategyFactory = scrollStrategyFactory; _this._scrollStrategy = _this._scrollStrategyFactory(); _this.tabIndex = parseInt(tabIndex) || 0; // Force setter to be called in case id was not specified. _this.id = _this.id; return _this; } Object.defineProperty(MatSelect.prototype, "focused", { /** Whether the select is focused. */ get: /** * Whether the select is focused. * @return {?} */ function () { return this._focused || this._panelOpen; }, /** * @deprecated Setter to be removed as this property is intended to be readonly. * @breaking-change 8.0.0 */ set: /** * @deprecated Setter to be removed as this property is intended to be readonly. * \@breaking-change 8.0.0 * @param {?} value * @return {?} */ function (value) { this._focused = value; }, enumerable: true, configurable: true }); Object.defineProperty(MatSelect.prototype, "placeholder", { /** Placeholder to be shown if no value has been selected. */ get: /** * Placeholder to be shown if no value has been selected. * @return {?} */ function () { return this._placeholder; }, set: /** * @param {?} value * @return {?} */ function (value) { this._placeholder = value; this.stateChanges.next(); }, enumerable: true, configurable: true }); Object.defineProperty(MatSelect.prototype, "required", { /** Whether the component is required. */ get: /** * Whether the component is required. * @return {?} */ function () { return this._required; }, set: /** * @param {?} value * @return {?} */ function (value) { this._required = coercion.coerceBooleanProperty(value); this.stateChanges.next(); }, enumerable: true, configurable: true }); Object.defineProperty(MatSelect.prototype, "multiple", { /** Whether the user should be allowed to select multiple options. */ get: /** * Whether the user should be allowed to select multiple options. * @return {?} */ function () { return this._multiple; }, set: /** * @param {?} value * @return {?} */ function (value) { if (this._selectionModel) { throw getMatSelectDynamicMultipleError(); } this._multiple = coercion.coerceBooleanProperty(value); }, enumerable: true, configurable: true }); Object.defineProperty(MatSelect.prototype, "disableOptionCentering", { /** Whether to center the active option over the trigger. */ get: /** * Whether to center the active option over the trigger. * @return {?} */ function () { return this._disableOptionCentering; }, set: /** * @param {?} value * @return {?} */ function (value) { this._disableOptionCentering = coercion.coerceBooleanProperty(value); }, enumerable: true, configurable: true }); Object.defineProperty(MatSelect.prototype, "compareWith", { /** * Function to compare the option values with the selected values. The first argument * is a value from an option. The second is a value from the selection. A boolean * should be returned. */ get: /** * Function to compare the option values with the selected values. The first argument * is a value from an option. The second is a value from the selection. A boolean * should be returned. * @return {?} */ function () { return this._compareWith; }, set: /** * @param {?} fn * @return {?} */ function (fn) { if (typeof fn !== 'function') { throw getMatSelectNonFunctionValueError(); } this._compareWith = fn; if (this._selectionModel) { // A different comparator means the selection could change. this._initializeSelection(); } }, enumerable: true, configurable: true }); Object.defineProperty(MatSelect.prototype, "value", { /** Value of the select control. */ get: /** * Value of the select control. * @return {?} */ function () { return this._value; }, set: /** * @param {?} newValue * @return {?} */ function (newValue) { if (newValue !== this._value) { this.writeValue(newValue); this._value = newValue; } }, enumerable: true, configurable: true }); Object.defineProperty(MatSelect.prototype, "id", { /** Unique id of the element. */ get: /** * Unique id of the element. * @return {?} */ function () { return this._id; }, set: /** * @param {?} value * @return {?} */ function (value) { this._id = value || this._uid; this.stateChanges.next(); }, enumerable: true, configurable: true }); /** * @return {?} */ MatSelect.prototype.ngOnInit = /** * @return {?} */ function () { var _this = this; this._selectionModel = new collections.SelectionModel(this.multiple); this.stateChanges.next(); // We need `distinctUntilChanged` here, because some browsers will // fire the animation end event twice for the same animation. See: // https://github.com/angular/angular/issues/24084 this._panelDoneAnimatingStream .pipe(operators.distinctUntilChanged(), operators.takeUntil(this._destroy)) .subscribe((/** * @return {?} */ function () { if (_this.panelOpen) { _this._scrollTop = 0; _this.openedChange.emit(true); } else { _this.openedChange.emit(false); _this.overlayDir.offsetX = 0; _this._changeDetectorRef.markForCheck(); } })); this._viewportRuler.change() .pipe(operators.takeUntil(this._destroy)) .subscribe((/** * @return {?} */ function () { if (_this._panelOpen) { _this._triggerRect = _this.trigger.nativeElement.getBoundingClientRect(); _this._changeDetectorRef.markForCheck(); } })); }; /** * @return {?} */ MatSelect.prototype.ngAfterContentInit = /** * @return {?} */ function () { var _this = this; this._initKeyManager(); this._selectionModel.onChange.pipe(operators.takeUntil(this._destroy)).subscribe((/** * @param {?} event * @return {?} */ function (event) { event.added.forEach((/** * @param {?} option * @return {?} */ function (option) { return option.select(); })); event.removed.forEach((/** * @param {?} option * @return {?} */ function (option) { return option.deselect(); })); })); this.options.changes.pipe(operators.startWith(null), operators.takeUntil(this._destroy)).subscribe((/** * @return {?} */ function () { _this._resetOptions(); _this._initializeSelection(); })); }; /** * @return {?} */ MatSelect.prototype.ngDoCheck = /** * @return {?} */ function () { if (this.ngControl) { this.updateErrorState(); } }; /** * @param {?} changes * @return {?} */ MatSelect.prototype.ngOnChanges = /** * @param {?} changes * @return {?} */ function (changes) { // Updating the disabled state is handled by `mixinDisabled`, but we need to additionally let // the parent form field know to run change detection when the disabled state changes. if (changes['disabled']) { this.stateChanges.next(); } }; /** * @return {?} */ MatSelect.prototype.ngOnDestroy = /** * @return {?} */ function () { this._destroy.next(); this._destroy.complete(); this.stateChanges.complete(); }; /** Toggles the overlay panel open or closed. */ /** * Toggles the overlay panel open or closed. * @return {?} */ MatSelect.prototype.toggle = /** * Toggles the overlay panel open or closed. * @return {?} */ function () { this.panelOpen ? this.close() : this.open(); }; /** Opens the overlay panel. */ /** * Opens the overlay panel. * @return {?} */ MatSelect.prototype.open = /** * Opens the overlay panel. * @return {?} */ function () { var _this = this; if (this.disabled || !this.options || !this.options.length || this._panelOpen) { return; } this._triggerRect = this.trigger.nativeElement.getBoundingClientRect(); // Note: The computed font-size will be a string pixel value (e.g. "16px"). // `parseInt` ignores the trailing 'px' and converts this to a number. this._triggerFontSize = parseInt(getComputedStyle(this.trigger.nativeElement).fontSize || '0'); this._panelOpen = true; this._keyManager.withHorizontalOrientation(null); this._calculateOverlayPosition(); this._highlightCorrectOption(); this._changeDetectorRef.markForCheck(); // Set the font size on the panel element once it exists. this._ngZone.onStable.asObservable().pipe(operators.take(1)).subscribe((/** * @return {?} */ function () { if (_this._triggerFontSize && _this.overlayDir.overlayRef && _this.overlayDir.overlayRef.overlayElement) { _this.overlayDir.overlayRef.overlayElement.style.fontSize = _this._triggerFontSize + "px"; } })); }; /** Closes the overlay panel and focuses the host element. */ /** * Closes the overlay panel and focuses the host element. * @return {?} */ MatSelect.prototype.close = /** * Closes the overlay panel and focuses the host element. * @return {?} */ function () { if (this._panelOpen) { this._panelOpen = false; this._keyManager.withHorizontalOrientation(this._isRtl() ? 'rtl' : 'ltr'); this._changeDetectorRef.markForCheck(); this._onTouched(); } }; /** * Sets the select's value. Part of the ControlValueAccessor interface * required to integrate with Angular's core forms API. * * @param value New value to be written to the model. */ /** * Sets the select's value. Part of the ControlValueAccessor interface * required to integrate with Angular's core forms API. * * @param {?} value New value to be written to the model. * @return {?} */ MatSelect.prototype.writeValue = /** * Sets the select's value. Part of the ControlValueAccessor interface * required to integrate with Angular's core forms API. * * @param {?} value New value to be written to the model. * @return {?} */ function (value) { if (this.options) { this._setSelectionByValue(value); } }; /** * Saves a callback function to be invoked when the select's value * changes from user input. Part of the ControlValueAccessor interface * required to integrate with Angular's core forms API. * * @param fn Callback to be triggered when the value changes. */ /** * Saves a callback function to be invoked when the select's value * changes from user input. Part of the ControlValueAccessor interface * required to integrate with Angular's core forms API. * * @param {?} fn Callback to be triggered when the value changes. * @return {?} */ MatSelect.prototype.registerOnChange = /** * Saves a callback function to be invoked when the select's value * changes from user input. Part of the ControlValueAccessor interface * required to integrate with Angular's core forms API. * * @param {?} fn Callback to be triggered when the value changes. * @return {?} */ function (fn) { this._onChange = fn; }; /** * Saves a callback function to be invoked when the select is blurred * by the user. Part of the ControlValueAccessor interface required * to integrate with Angular's core forms API. * * @param fn Callback to be triggered when the component has been touched. */ /** * Saves a callback function to be invoked when the select is blurred * by the user. Part of the ControlValueAccessor interface required * to integrate with Angular's core forms API. * * @param {?} fn Callback to be triggered when the component has been touched. * @return {?} */ MatSelect.prototype.registerOnTouched = /** * Saves a callback function to be invoked when the select is blurred * by the user. Part of the ControlValueAccessor interface required * to integrate with Angular's core forms API. * * @param {?} fn Callback to be triggered when the component has been touched. * @return {?} */ function (fn) { this._onTouched = fn; }; /** * Disables the select. Part of the ControlValueAccessor interface required * to integrate with Angular's core forms API. * * @param isDisabled Sets whether the component is disabled. */ /** * Disables the select. Part of the ControlValueAccessor interface required * to integrate with Angular's core forms API. * * @param {?} isDisabled Sets whether the component is disabled. * @return {?} */ MatSelect.prototype.setDisabledState = /** * Disables the select. Part of the ControlValueAccessor interface required * to integrate with Angular's core forms API. * * @param {?} isDisabled Sets whether the component is disabled. * @return {?} */ function (isDisabled) { this.disabled = isDisabled; this._changeDetectorRef.markForCheck(); this.stateChanges.next(); }; Object.defineProperty(MatSelect.prototype, "panelOpen", { /** Whether or not the overlay panel is open. */ get: /** * Whether or not the overlay panel is open. * @return {?} */ function () { return this._panelOpen; }, enumerable: true, configurable: true }); Object.defineProperty(MatSelect.prototype, "selected", { /** The currently selected option. */ get: /** * The currently selected option. * @return {?} */ function () { return this.multiple ? this._selectionModel.selected : this._selectionModel.selected[0]; }, enumerable: true, configurable: true }); Object.defineProperty(MatSelect.prototype, "triggerValue", { /** The value displayed in the trigger. */ get: /** * The value displayed in the trigger. * @return {?} */ function () { if (this.empty) { return ''; } if (this._multiple) { /** @type {?} */ var selectedOptions = this._selectionModel.selected.map((/** * @param {?} option * @return {?} */ function (option) { return option.viewValue; })); if (this._isRtl()) { selectedOptions.reverse(); } // TODO(crisbeto): delimiter should be configurable for proper localization. return selectedOptions.join(', '); } return this._selectionModel.selected[0].viewValue; }, enumerable: true, configurable: true }); /** Whether the element is in RTL mode. */ /** * Whether the element is in RTL mode. * @return {?} */ MatSelect.prototype._isRtl = /** * Whether the element is in RTL mode. * @return {?} */ function () { return this._dir ? this._dir.value === 'rtl' : false; }; /** Handles all keydown events on the select. */ /** * Handles all keydown events on the select. * @param {?} event * @return {?} */ MatSelect.prototype._handleKeydown = /** * Handles all keydown events on the select. * @param {?} event * @return {?} */ function (event) { if (!this.disabled) { this.panelOpen ? this._handleOpenKeydown(event) : this._handleClosedKeydown(event); } }; /** Handles keyboard events while the select is closed. */ /** * Handles keyboard events while the select is closed. * @private * @param {?} event * @return {?} */ MatSelect.prototype._handleClosedKeydown = /** * Handles keyboard events while the select is closed. * @private * @param {?} event * @return {?} */ function (event) { /** @type {?} */ var keyCode = event.keyCode; /** @type {?} */ var isArrowKey = keyCode === keycodes.DOWN_ARROW || keyCode === keycodes.UP_ARROW || keyCode === keycodes.LEFT_ARROW || keyCode === keycodes.RIGHT_ARROW; /** @type {?} */ var isOpenKey = keyCode === keycodes.ENTER || keyCode === keycodes.SPACE; /** @type {?} */ var manager = this._keyManager; // Open the select on ALT + arrow key to match the native event.preventDefault(); this.close(); } else if ((keyCode === keycodes.ENTER || keyCode === keycodes.SPACE) && manager.activeItem && !keycodes.hasModifierKey(event)) { event.preventDefault(); manager.activeItem._selectViaInteraction(); } else if (this._multiple && keyCode === keycodes.A && event.ctrlKey) { event.preventDefault(); /** @type {?} */ var hasDeselectedOptions_1 = this.options.some((/** * @param {?} opt * @return {?} */ function (opt) { return !opt.disabled && !opt.selected; })); this.options.forEach((/** * @param {?} option * @return {?} */ function (option) { if (!option.disabled) { hasDeselectedOptions_1 ? option.select() : option.deselect(); } })); } else { /** @type {?} */ var previouslyFocusedIndex = manager.activeItemIndex; manager.onKeydown(event); if (this._multiple && isArrowKey && event.shiftKey && manager.activeItem && manager.activeItemIndex !== previouslyFocusedIndex) { manager.activeItem._selectViaInteraction(); } } }; /** * @return {?} */ MatSelect.prototype._onFocus = /** * @return {?} */ function () { if (!this.disabled) { this._focused = true; this.stateChanges.next(); } }; /** * Calls the touched callback only if the panel is closed. Otherwise, the trigger will * "blur" to the panel when it opens, causing a false positive. */ /** * Calls the touched callback only if the panel is closed. Otherwise, the trigger will * "blur" to the panel when it opens, causing a false positive. * @return {?} */ MatSelect.prototype._onBlur = /** * Calls the touched callback only if the panel is closed. Otherwise, the trigger will * "blur" to the panel when it opens, causing a false positive. * @return {?} */ function () { this._focused = false; if (!this.disabled && !this.panelOpen) { this._onTouched(); this._changeDetectorRef.markForCheck(); this.stateChanges.next(); } }; /** * Callback that is invoked when the overlay panel has been attached. */ /** * Callback that is invoked when the overlay panel has been attached. * @return {?} */ MatSelect.prototype._onAttached = /** * Callback that is invoked when the overlay panel has been attached. * @return {?} */ function () { var _this = this; this.overlayDir.positionChange.pipe(operators.take(1)).subscribe((/** * @return {?} */ function () { _this._changeDetectorRef.detectChanges(); _this._calculateOverlayOffsetX(); _this.panel.nativeElement.scrollTop = _this._scrollTop; })); }; /** Returns the theme to be used on the panel. */ /** * Returns the theme to be used on the panel. * @return {?} */ MatSelect.prototype._getPanelTheme = /** * Returns the theme to be used on the panel. * @return {?} */ function () { return this._parentFormField ? "mat-" + this._parentFormField.color : ''; }; Object.defineProperty(MatSelect.prototype, "empty", { /** Whether the select has a value. */ get: /** * Whether the select has a value. * @return {?} */ function () { return !this._selectionModel || this._selectionModel.isEmpty(); }, enumerable: true, configurable: true }); /** * @private * @return {?} */ MatSelect.prototype._initializeSelection = /** * @private * @return {?} */ function () { var _this = this; // Defer setting the value in order to avoid the "Expression // has changed after it was checked" errors from Angular. Promise.resolve().then((/** * @return {?} */ function () { _this._setSelectionByValue(_this.ngControl ? _this.ngControl.value : _this._value); _this.stateChanges.next(); })); }; /** * Sets the selected option based on a value. If no option can be * found with the designated value, the select trigger is cleared. */ /** * Sets the selected option based on a value. If no option can be * found with the designated value, the select trigger is cleared. * @private * @param {?} value * @return {?} */ MatSelect.prototype._setSelectionByValue = /** * Sets the selected option based on a value. If no option can be * found with the designated value, the select trigger is cleared. * @private * @param {?} value * @return {?} */ function (value) { var _this = this; if (this.multiple && value) { if (!Array.isArray(value)) { throw getMatSelectNonArrayValueError(); } this._selectionModel.clear(); value.forEach((/** * @param {?} currentValue * @return {?} */ function (currentValue) { return _this._selectValue(currentValue); })); this._sortValues(); } else { this._selectionModel.clear(); /** @type {?} */ var correspondingOption = this._selectValue(value); // Shift focus to the active item. Note that we shouldn't do this in multiple // mode, because we don't know what option the user interacted with last. if (correspondingOption) { this._keyManager.setActiveItem(correspondingOption); } } this._changeDetectorRef.markForCheck(); }; /** * Finds and selects and option based on its value. * @returns Option that has the corresponding value. */ /** * Finds and selects and option based on its value. * @private * @param {?} value * @return {?} Option that has the corresponding value. */ MatSelect.prototype._selectValue = /** * Finds and selects and option based on its value. * @private * @param {?} value * @return {?} Option that has the corresponding value. */ function (value) { var _this = this; /** @type {?} */ var correspondingOption = this.options.find((/** * @param {?} option * @return {?} */ function (option) { try { // Treat null as a special reset value. return option.value != null && _this._compareWith(option.value, value); } catch (error) { if (core.isDevMode()) { // Notify developers of errors in their comparator. console.warn(error); } return false; } })); if (correspondingOption) { this._selectionModel.select(correspondingOption); } return correspondingOption; }; /** Sets up a key manager to listen to keyboard events on the overlay panel. */ /** * Sets up a key manager to listen to keyboard events on the overlay panel. * @private * @return {?} */ MatSelect.prototype._initKeyManager = /** * Sets up a key manager to listen to keyboard events on the overlay panel. * @private * @return {?} */ function () { var _this = this; this._keyManager = new a11y.ActiveDescendantKeyManager(this.options) .withTypeAhead() .withVerticalOrientation() .withHorizontalOrientation(this._isRtl() ? 'rtl' : 'ltr') .withAllowedModifierKeys(['shiftKey']); this._keyManager.tabOut.pipe(operators.takeUntil(this._destroy)).subscribe((/** * @return {?} */ function () { // Restore focus to the trigger before closing. Ensures that the focus // position won't be lost if the user got focus into the overlay. _this.focus(); _this.close(); })); this._keyManager.change.pipe(operators.takeUntil(this._destroy)).subscribe((/** * @return {?} */ function () { if (_this._panelOpen && _this.panel) { _this._scrollActiveOptionIntoView(); } else if (!_this._panelOpen && !_this.multiple && _this._keyManager.activeItem) { _this._keyManager.activeItem._selectViaInteraction(); } })); }; /** Drops current option subscriptions and IDs and resets from scratch. */ /** * Drops current option subscriptions and IDs and resets from scratch. * @private * @return {?} */ MatSelect.prototype._resetOptions = /** * Drops current option subscriptions and IDs and resets from scratch. * @private * @return {?} */ function () { var _this = this; /** @type {?} */ var changedOrDestroyed = rxjs.merge(this.options.changes, this._destroy); this.optionSelectionChanges.pipe(operators.takeUntil(changedOrDestroyed)).subscribe((/** * @param {?} event * @return {?} */ function (event) { _this._onSelect(event.source, event.isUserInput); if (event.isUserInput && !_this.multiple && _this._panelOpen) { _this.close(); _this.focus(); } })); // Listen to changes in the internal state of the options and react accordingly. // Handles cases like the labels of the selected options changing. rxjs.merge.apply(void 0, this.options.map((/** * @param {?} option * @return {?} */ function (option) { return option._stateChanges; }))).pipe(operators.takeUntil(changedOrDestroyed)) .subscribe((/** * @return {?} */ function () { _this._changeDetectorRef.markForCheck(); _this.stateChanges.next(); })); this._setOptionIds(); }; /** Invoked when an option is clicked. */ /** * Invoked when an option is clicked. * @private * @param {?} option * @param {?} isUserInput * @return {?} */ MatSelect.prototype._onSelect = /** * Invoked when an option is clicked. * @private * @param {?} option * @param {?} isUserInput * @return {?} */ function (option, isUserInput) { /** @type {?} */ var wasSelected = this._selectionModel.isSelected(option); if (option.value == null && !this._multiple) { option.deselect(); this._selectionModel.clear(); this._propagateChanges(option.value); } else { option.selected ? this._selectionModel.select(option) : this._selectionModel.deselect(option); if (isUserInput) { this._keyManager.setActiveItem(option); } if (this.multiple) { this._sortValues(); if (isUserInput) { // In case the user selected the option with their mouse, we // want to restore focus back to the trigger, in order to // prevent the select keyboard controls from clashing with // the ones from `mat-option`. this.focus(); } } } if (wasSelected !== this._selectionModel.isSelected(option)) { this._propagateChanges(); } this.stateChanges.next(); }; /** Sorts the selected values in the selected based on their order in the panel. */ /** * Sorts the selected values in the selected based on their order in the panel. * @private * @return {?} */ MatSelect.prototype._sortValues = /** * Sorts the selected values in the selected based on their order in the panel. * @private * @return {?} */ function () { var _this = this; if (this.multiple) { /** @type {?} */ var options_1 = this.options.toArray(); this._selectionModel.sort((/** * @param {?} a * @param {?} b * @return {?} */ function (a, b) { return _this.sortComparator ? _this.sortComparator(a, b, options_1) : options_1.indexOf(a) - options_1.indexOf(b); })); this.stateChanges.next(); } }; /** Emits change event to set the model value. */ /** * Emits change event to set the model value. * @private * @param {?=} fallbackValue * @return {?} */ MatSelect.prototype._propagateChanges = /** * Emits change event to set the model value. * @private * @param {?=} fallbackValue * @return {?} */ function (fallbackValue) { /** @type {?} */ var valueToEmit = null; if (this.multiple) { valueToEmit = ((/** @type {?} */ (this.selected))).map((/** * @param {?} option * @return {?} */ function (option) { return option.value; })); } else { valueToEmit = this.selected ? ((/** @type {?} */ (this.selected))).value : fallbackValue; } this._value = valueToEmit; this.valueChange.emit(valueToEmit); this._onChange(valueToEmit); this.selectionChange.emit(new MatSelectChange(this, valueToEmit)); this._changeDetectorRef.markForCheck(); }; /** Records option IDs to pass to the aria-owns property. */ /** * Records option IDs to pass to the aria-owns property. * @private * @return {?} */ MatSelect.prototype._setOptionIds = /** * Records option IDs to pass to the aria-owns property. * @private * @return {?} */ function () { this._optionIds = this.options.map((/** * @param {?} option * @return {?} */ function (option) { return option.id; })).join(' '); }; /** * Highlights the selected item. If no option is selected, it will highlight * the first item instead. */ /** * Highlights the selected item. If no option is selected, it will highlight * the first item instead. * @private * @return {?} */ MatSelect.prototype._highlightCorrectOption = /** * Highlights the selected item. If no option is selected, it will highlight * the first item instead. * @private * @return {?} */ function () { if (this._keyManager) { if (this.empty) { this._keyManager.setFirstItemActive(); } else { this._keyManager.setActiveItem(this._selectionModel.selected[0]); } } }; /** Scrolls the active option into view. */ /** * Scrolls the active option into view. * @private * @return {?} */ MatSelect.prototype._scrollActiveOptionIntoView = /** * Scrolls the active option into view. * @private * @return {?} */ function () { /** @type {?} */ var activeOptionIndex = this._keyManager.activeItemIndex || 0; /** @type {?} */ var labelCount = core$1._countGroupLabelsBeforeOption(activeOptionIndex, this.options, this.optionGroups); this.panel.nativeElement.scrollTop = core$1._getOptionScrollPosition(activeOptionIndex + labelCount, this._getItemHeight(), this.panel.nativeElement.scrollTop, SELECT_PANEL_MAX_HEIGHT); }; /** Focuses the select element. */ /** * Focuses the select element. * @param {?=} options * @return {?} */ MatSelect.prototype.focus = /** * Focuses the select element. * @param {?=} options * @return {?} */ function (options) { this._elementRef.nativeElement.focus(options); }; /** Gets the index of the provided option in the option list. */ /** * Gets the index of the provided option in the option list. * @private * @param {?} option * @return {?} */ MatSelect.prototype._getOptionIndex = /** * Gets the index of the provided option in the option list. * @private * @param {?} option * @return {?} */ function (option) { return this.options.reduce((/** * @param {?} result * @param {?} current * @param {?} index * @return {?} */ function (result, current, index) { return result === undefined ? (option === current ? index : undefined) : result; }), undefined); }; /** Calculates the scroll position and x- and y-offsets of the overlay panel. */ /** * Calculates the scroll position and x- and y-offsets of the overlay panel. * @private * @return {?} */ MatSelect.prototype._calculateOverlayPosition = /** * Calculates the scroll position and x- and y-offsets of the overlay panel. * @private * @return {?} */ function () { /** @type {?} */ var itemHeight = this._getItemHeight(); /** @type {?} */ var items = this._getItemCount(); /** @type {?} */ var panelHeight = Math.min(items * itemHeight, SELECT_PANEL_MAX_HEIGHT); /** @type {?} */ var scrollContainerHeight = items * itemHeight; // The farthest the panel can be scrolled before it hits the bottom /** @type {?} */ var maxScroll = scrollContainerHeight - panelHeight; // If no value is selected we open the popup to the first item. /** @type {?} */ var selectedOptionOffset = this.empty ? 0 : (/** @type {?} */ (this._getOptionIndex(this._selectionModel.selected[0]))); selectedOptionOffset += core$1._countGroupLabelsBeforeOption(selectedOptionOffset, this.options, this.optionGroups); // We must maintain a scroll buffer so the selected option will be scrolled to the // center of the overlay panel rather than the top. /** @type {?} */ var scrollBuffer = panelHeight / 2; this._scrollTop = this._calculateOverlayScroll(selectedOptionOffset, scrollBuffer, maxScroll); this._offsetY = this._calculateOverlayOffsetY(selectedOptionOffset, scrollBuffer, maxScroll); this._checkOverlayWithinViewport(maxScroll); }; /** * Calculates the scroll position of the select's overlay panel. * * Attempts to center the selected option in the panel. If the option is * too high or too low in the panel to be scrolled to the center, it clamps the * scroll position to the min or max scroll positions respectively. */ /** * Calculates the scroll position of the select's overlay panel. * * Attempts to center the selected option in the panel. If the option is * too high or too low in the panel to be scrolled to the center, it clamps the * scroll position to the min or max scroll positions respectively. * @param {?} selectedIndex * @param {?} scrollBuffer * @param {?} maxScroll * @return {?} */ MatSelect.prototype._calculateOverlayScroll = /** * Calculates the scroll position of the select's overlay panel. * * Attempts to center the selected option in the panel. If the option is * too high or too low in the panel to be scrolled to the center, it clamps the * scroll position to the min or max scroll positions respectively. * @param {?} selectedIndex * @param {?} scrollBuffer * @param {?} maxScroll * @return {?} */ function (selectedIndex, scrollBuffer, maxScroll) { /** @type {?} */ var itemHeight = this._getItemHeight(); /** @type {?} */ var optionOffsetFromScrollTop = itemHeight * selectedIndex; /** @type {?} */ var halfOptionHeight = itemHeight / 2; // Starts at the optionOffsetFromScrollTop, which scrolls the option to the top of the // scroll container, then subtracts the scroll buffer to scroll the option down to // the center of the overlay panel. Half the option height must be re-added to the // scrollTop so the option is centered based on its middle, not its top edge. /** @type {?} */ var optimalScrollPosition = optionOffsetFromScrollTop - scrollBuffer + halfOptionHeight; return Math.min(Math.max(0, optimalScrollPosition), maxScroll); }; /** Returns the aria-label of the select component. */ /** * Returns the aria-label of the select component. * @return {?} */ MatSelect.prototype._getAriaLabel = /** * Returns the aria-label of the select component. * @return {?} */ function () { // If an ariaLabelledby value has been set by the consumer, the select should not overwrite the // `aria-labelledby` value by setting the ariaLabel to the placeholder. return this.ariaLabelledby ? null : this.ariaLabel || this.placeholder; }; /** Returns the aria-labelledby of the select component. */ /** * Returns the aria-labelledby of the select component. * @return {?} */ MatSelect.prototype._getAriaLabelledby = /** * Returns the aria-labelledby of the select component. * @return {?} */ function () { if (this.ariaLabelledby) { return this.ariaLabelledby; } // Note: we use `_getAriaLabel` here, because we want to check whether there's a // computed label. `this.ariaLabel` is only the user-specified label. if (!this._parentFormField || !this._parentFormField._hasFloatingLabel() || this._getAriaLabel()) { return null; } return this._parentFormField._labelId || null; }; /** Determines the `aria-activedescendant` to be set on the host. */ /** * Determines the `aria-activedescendant` to be set on the host. * @return {?} */ MatSelect.prototype._getAriaActiveDescendant = /** * Determines the `aria-activedescendant` to be set on the host. * @return {?} */ function () { if (this.panelOpen && this._keyManager && this._keyManager.activeItem) { return this._keyManager.activeItem.id; } return null; }; /** * Sets the x-offset of the overlay panel in relation to the trigger's top start corner. * This must be adjusted to align the selected option text over the trigger text when * the panel opens. Will change based on LTR or RTL text direction. Note that the offset * can't be calculated until the panel has been attached, because we need to know the * content width in order to constrain the panel within the viewport. */ /** * Sets the x-offset of the overlay panel in relation to the trigger's top start corner. * This must be adjusted to align the selected option text over the trigger text when * the panel opens. Will change based on LTR or RTL text direction. Note that the offset * can't be calculated until the panel has been attached, because we need to know the * content width in order to constrain the panel within the viewport. * @private * @return {?} */ MatSelect.prototype._calculateOverlayOffsetX = /** * Sets the x-offset of the overlay panel in relation to the trigger's top start corner. * This must be adjusted to align the selected option text over the trigger text when * the panel opens. Will change based on LTR or RTL text direction. Note that the offset * can't be calculated until the panel has been attached, because we need to know the * content width in order to constrain the panel within the viewport. * @private * @return {?} */ function () { /** @type {?} */ var overlayRect = this.overlayDir.overlayRef.overlayElement.getBoundingClientRect(); /** @type {?} */ var viewportSize = this._viewportRuler.getViewportSize(); /** @type {?} */ var isRtl = this._isRtl(); /** @type {?} */ var paddingWidth = this.multiple ? SELECT_MULTIPLE_PANEL_PADDING_X + SELECT_PANEL_PADDING_X : SELECT_PANEL_PADDING_X * 2; /** @type {?} */ var offsetX; // Adjust the offset, depending on the option padding. if (this.multiple) { offsetX = SELECT_MULTIPLE_PANEL_PADDING_X; } else { /** @type {?} */ var selected = this._selectionModel.selected[0] || this.options.first; offsetX = selected && selected.group ? SELECT_PANEL_INDENT_PADDING_X : SELECT_PANEL_PADDING_X; } // Invert the offset in LTR. if (!isRtl) { offsetX *= -1; } // Determine how much the select overflows on each side. /** @type {?} */ var leftOverflow = 0 - (overlayRect.left + offsetX - (isRtl ? paddingWidth : 0)); /** @type {?} */ var rightOverflow = overlayRect.right + offsetX - viewportSize.width + (isRtl ? 0 : paddingWidth); // If the element overflows on either side, reduce the offset to allow it to fit. if (leftOverflow > 0) { offsetX += leftOverflow + SELECT_PANEL_VIEWPORT_PADDING; } else if (rightOverflow > 0) { offsetX -= rightOverflow + SELECT_PANEL_VIEWPORT_PADDING; } // Set the offset directly in order to avoid having to go through change detection and // potentially triggering "changed after it was checked" errors. Round the value to avoid // blurry content in some browsers. this.overlayDir.offsetX = Math.round(offsetX); this.overlayDir.overlayRef.updatePosition(); }; /** * Calculates the y-offset of the select's overlay panel in relation to the * top start corner of the trigger. It has to be adjusted in order for the * selected option to be aligned over the trigger when the panel opens. */ /** * Calculates the y-offset of the select's overlay panel in relation to the * top start corner of the trigger. It has to be adjusted in order for the * selected option to be aligned over the trigger when the panel opens. * @private * @param {?} selectedIndex * @param {?} scrollBuffer * @param {?} maxScroll * @return {?} */ MatSelect.prototype._calculateOverlayOffsetY = /** * Calculates the y-offset of the select's overlay panel in relation to the * top start corner of the trigger. It has to be adjusted in order for the * selected option to be aligned over the trigger when the panel opens. * @private * @param {?} selectedIndex * @param {?} scrollBuffer * @param {?} maxScroll * @return {?} */ function (selectedIndex, scrollBuffer, maxScroll) { /** @type {?} */ var itemHeight = this._getItemHeight(); /** @type {?} */ var optionHeightAdjustment = (itemHeight - this._triggerRect.height) / 2; /** @type {?} */ var maxOptionsDisplayed = Math.floor(SELECT_PANEL_MAX_HEIGHT / itemHeight); /** @type {?} */ var optionOffsetFromPanelTop; // Disable offset if requested by user by returning 0 as value to offset if (this._disableOptionCentering) { return 0; } if (this._scrollTop === 0) { optionOffsetFromPanelTop = selectedIndex * itemHeight; } else if (this._scrollTop === maxScroll) { /** @type {?} */ var firstDisplayedIndex = this._getItemCount() - maxOptionsDisplayed; /** @type {?} */ var selectedDisplayIndex = selectedIndex - firstDisplayedIndex; // The first item is partially out of the viewport. Therefore we need to calculate what // portion of it is shown in the viewport and account for it in our offset. /** @type {?} */ var partialItemHeight = itemHeight - (this._getItemCount() * itemHeight - SELECT_PANEL_MAX_HEIGHT) % itemHeight; // Because the panel height is longer than the height of the options alone, // there is always extra padding at the top or bottom of the panel. When // scrolled to the very bottom, this padding is at the top of the panel and // must be added to the offset. optionOffsetFromPanelTop = selectedDisplayIndex * itemHeight + partialItemHeight; } else { // If the option was scrolled to the middle of the panel using a scroll buffer, // its offset will be the scroll buffer minus the half height that was added to // center it. optionOffsetFromPanelTop = scrollBuffer - itemHeight / 2; } // The final offset is the option's offset from the top, adjusted for the height difference, // multiplied by -1 to ensure that the overlay moves in the correct direction up the page. // The value is rounded to prevent some browsers from blurring the content. return Math.round(optionOffsetFromPanelTop * -1 - optionHeightAdjustment); }; /** * Checks that the attempted overlay position will fit within the viewport. * If it will not fit, tries to adjust the scroll position and the associated * y-offset so the panel can open fully on-screen. If it still won't fit, * sets the offset back to 0 to allow the fallback position to take over. */ /** * Checks that the attempted overlay position will fit within the viewport. * If it will not fit, tries to adjust the scroll position and the associated * y-offset so the panel can open fully on-screen. If it still won't fit, * sets the offset back to 0 to allow the fallback position to take over. * @private * @param {?} maxScroll * @return {?} */ MatSelect.prototype._checkOverlayWithinViewport = /** * Checks that the attempted overlay position will fit within the viewport. * If it will not fit, tries to adjust the scroll position and the associated * y-offset so the panel can open fully on-screen. If it still won't fit, * sets the offset back to 0 to allow the fallback position to take over. * @private * @param {?} maxScroll * @return {?} */ function (maxScroll) { /** @type {?} */ var itemHeight = this._getItemHeight(); /** @type {?} */ var viewportSize = this._viewportRuler.getViewportSize(); /** @type {?} */ var topSpaceAvailable = this._triggerRect.top - SELECT_PANEL_VIEWPORT_PADDING; /** @type {?} */ var bottomSpaceAvailable = viewportSize.height - this._triggerRect.bottom - SELECT_PANEL_VIEWPORT_PADDING; /** @type {?} */ var panelHeightTop = Math.abs(this._offsetY); /** @type {?} */ var totalPanelHeight = Math.min(this._getItemCount() * itemHeight, SELECT_PANEL_MAX_HEIGHT); /** @type {?} */ var panelHeightBottom = totalPanelHeight - panelHeightTop - this._triggerRect.height; if (panelHeightBottom > bottomSpaceAvailable) { this._adjustPanelUp(panelHeightBottom, bottomSpaceAvailable); } else if (panelHeightTop > topSpaceAvailable) { this._adjustPanelDown(panelHeightTop, topSpaceAvailable, maxScroll); } else { this._transformOrigin = this._getOriginBasedOnOption(); } }; /** Adjusts the overlay panel up to fit in the viewport. */ /** * Adjusts the overlay panel up to fit in the viewport. * @private * @param {?} panelHeightBottom * @param {?} bottomSpaceAvailable * @return {?} */ MatSelect.prototype._adjustPanelUp = /** * Adjusts the overlay panel up to fit in the viewport. * @private * @param {?} panelHeightBottom * @param {?} bottomSpaceAvailable * @return {?} */ function (panelHeightBottom, bottomSpaceAvailable) { // Browsers ignore fractional scroll offsets, so we need to round. /** @type {?} */ var distanceBelowViewport = Math.round(panelHeightBottom - bottomSpaceAvailable); // Scrolls the panel up by the distance it was extending past the boundary, then // adjusts the offset by that amount to move the panel up into the viewport. this._scrollTop -= distanceBelowViewport; this._offsetY -= distanceBelowViewport; this._transformOrigin = this._getOriginBasedOnOption(); // If the panel is scrolled to the very top, it won't be able to fit the panel // by scrolling, so set the offset to 0 to allow the fallback position to take // effect. if (this._scrollTop <= 0) { this._scrollTop = 0; this._offsetY = 0; this._transformOrigin = "50% bottom 0px"; } }; /** Adjusts the overlay panel down to fit in the viewport. */ /** * Adjusts the overlay panel down to fit in the viewport. * @private * @param {?} panelHeightTop * @param {?} topSpaceAvailable * @param {?} maxScroll * @return {?} */ MatSelect.prototype._adjustPanelDown = /** * Adjusts the overlay panel down to fit in the viewport. * @private * @param {?} panelHeightTop * @param {?} topSpaceAvailable * @param {?} maxScroll * @return {?} */ function (panelHeightTop, topSpaceAvailable, maxScroll) { // Browsers ignore fractional scroll offsets, so we need to round. /** @type {?} */ var distanceAboveViewport = Math.round(panelHeightTop - topSpaceAvailable); // Scrolls the panel down by the distance it was extending past the boundary, then // adjusts the offset by that amount to move the panel down into the viewport. this._scrollTop += distanceAboveViewport; this._offsetY += distanceAboveViewport; this._transformOrigin = this._getOriginBasedOnOption(); // If the panel is scrolled to the very bottom, it won't be able to fit the // panel by scrolling, so set the offset to 0 to allow the fallback position // to take effect. if (this._scrollTop >= maxScroll) { this._scrollTop = maxScroll; this._offsetY = 0; this._transformOrigin = "50% top 0px"; return; } }; /** Sets the transform origin point based on the selected option. */ /** * Sets the transform origin point based on the selected option. * @private * @return {?} */ MatSelect.prototype._getOriginBasedOnOption = /** * Sets the transform origin point based on the selected option. * @private * @return {?} */ function () { /** @type {?} */ var itemHeight = this._getItemHeight(); /** @type {?} */ var optionHeightAdjustment = (itemHeight - this._triggerRect.height) / 2; /** @type {?} */ var originY = Math.abs(this._offsetY) - optionHeightAdjustment + itemHeight / 2; return "50% " + originY + "px 0px"; }; /** Calculates the amount of items in the select. This includes options and group labels. */ /** * Calculates the amount of items in the select. This includes options and group labels. * @private * @return {?} */ MatSelect.prototype._getItemCount = /** * Calculates the amount of items in the select. This includes options and group labels. * @private * @return {?} */ function () { return this.options.length + this.optionGroups.length; }; /** Calculates the height of the select's options. */ /** * Calculates the height of the select's options. * @private * @return {?} */ MatSelect.prototype._getItemHeight = /** * Calculates the height of the select's options. * @private * @return {?} */ function () { return this._triggerFontSize * SELECT_ITEM_HEIGHT_EM; }; /** * Implemented as part of MatFormFieldControl. * @docs-private */ /** * Implemented as part of MatFormFieldControl. * \@docs-private * @param {?} ids * @return {?} */ MatSelect.prototype.setDescribedByIds = /** * Implemented as part of MatFormFieldControl. * \@docs-private * @param {?} ids * @return {?} */ function (ids) { this._ariaDescribedby = ids.join(' '); }; /** * Implemented as part of MatFormFieldControl. * @docs-private */ /** * Implemented as part of MatFormFieldControl. * \@docs-private * @return {?} */ MatSelect.prototype.onContainerClick = /** * Implemented as part of MatFormFieldControl. * \@docs-private * @return {?} */ function () { this.focus(); this.open(); }; Object.defineProperty(MatSelect.prototype, "shouldLabelFloat", { /** * Implemented as part of MatFormFieldControl. * @docs-private */ get: /** * Implemented as part of MatFormFieldControl. * \@docs-private * @return {?} */ function () { return this._panelOpen || !this.empty; }, enumerable: true, configurable: true }); MatSelect.decorators = [ { type: core.Component, args: [{selector: 'mat-select', exportAs: 'matSelect', template: "
{{placeholder || '\u00A0'}} {{triggerValue || '\u00A0'}}
", styles: [".mat-select{display:inline-block;width:100%;outline:0}.mat-select-trigger{display:inline-table;cursor:pointer;position:relative;box-sizing:border-box}.mat-select-disabled .mat-select-trigger{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:default}.mat-select-value{display:table-cell;max-width:0;width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mat-select-value-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mat-select-arrow-wrapper{display:table-cell;vertical-align:middle}.mat-form-field-appearance-fill .mat-select-arrow-wrapper{transform:translateY(-50%)}.mat-form-field-appearance-outline .mat-select-arrow-wrapper{transform:translateY(-25%)}.mat-form-field-appearance-standard.mat-form-field-has-label .mat-select:not(.mat-select-empty) .mat-select-arrow-wrapper{transform:translateY(-50%)}.mat-form-field-appearance-standard .mat-select.mat-select-empty .mat-select-arrow-wrapper{transition:transform .4s cubic-bezier(.25,.8,.25,1)}._mat-animation-noopable.mat-form-field-appearance-standard .mat-select.mat-select-empty .mat-select-arrow-wrapper{transition:none}.mat-select-arrow{width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid;margin:0 4px}.mat-select-panel-wrap{flex-basis:100%}.mat-select-panel{min-width:112px;max-width:280px;overflow:auto;-webkit-overflow-scrolling:touch;padding-top:0;padding-bottom:0;max-height:256px;min-width:100%;border-radius:4px}@media (-ms-high-contrast:active){.mat-select-panel{outline:solid 1px}}.mat-select-panel .mat-optgroup-label,.mat-select-panel .mat-option{font-size:inherit;line-height:3em;height:3em}.mat-form-field-type-mat-select:not(.mat-form-field-disabled) .mat-form-field-flex{cursor:pointer}.mat-form-field-type-mat-select .mat-form-field-label{width:calc(100% - 18px)}.mat-select-placeholder{transition:color .4s .133s cubic-bezier(.25,.8,.25,1)}._mat-animation-noopable .mat-select-placeholder{transition:none}.mat-form-field-hide-placeholder .mat-select-placeholder{color:transparent;-webkit-text-fill-color:transparent;transition:none;display:block}"], inputs: ['disabled', 'disableRipple', 'tabIndex'], encapsulation: core.ViewEncapsulation.None, changeDetection: core.ChangeDetectionStrategy.OnPush, host: { 'role': 'listbox', '[attr.id]': 'id', '[attr.tabindex]': 'tabIndex', '[attr.aria-label]': '_getAriaLabel()', '[attr.aria-labelledby]': '_getAriaLabelledby()', '[attr.aria-required]': 'required.toString()', '[attr.aria-disabled]': 'disabled.toString()', '[attr.aria-invalid]': 'errorState', '[attr.aria-owns]': 'panelOpen ? _optionIds : null', '[attr.aria-multiselectable]': 'multiple', '[attr.aria-describedby]': '_ariaDescribedby || null', '[attr.aria-activedescendant]': '_getAriaActiveDescendant()', '[class.mat-select-disabled]': 'disabled', '[class.mat-select-invalid]': 'errorState', '[class.mat-select-required]': 'required', '[class.mat-select-empty]': 'empty', 'class': 'mat-select', '(keydown)': '_handleKeydown($event)', '(focus)': '_onFocus()', '(blur)': '_onBlur()', }, animations: [ matSelectAnimations.transformPanelWrap, matSelectAnimations.transformPanel ], providers: [ { provide: formField.MatFormFieldControl, useExisting: MatSelect }, { provide: core$1.MAT_OPTION_PARENT_COMPONENT, useExisting: MatSelect } ], },] }, ]; /** @nocollapse */ MatSelect.ctorParameters = function () { return [ { type: scrolling.ViewportRuler }, { type: core.ChangeDetectorRef }, { type: core.NgZone }, { type: core$1.ErrorStateMatcher }, { type: core.ElementRef }, { type: bidi.Directionality, decorators: [{ type: core.Optional }] }, { type: forms.NgForm, decorators: [{ type: core.Optional }] }, { type: forms.FormGroupDirective, decorators: [{ type: core.Optional }] }, { type: formField.MatFormField, decorators: [{ type: core.Optional }] }, { type: forms.NgControl, decorators: [{ type: core.Self }, { type: core.Optional }] }, { type: String, decorators: [{ type: core.Attribute, args: ['tabindex',] }] }, { type: undefined, decorators: [{ type: core.Inject, args: [MAT_SELECT_SCROLL_STRATEGY,] }] }, { type: a11y.LiveAnnouncer } ]; }; MatSelect.propDecorators = { trigger: [{ type: core.ViewChild, args: ['trigger', { static: false },] }], panel: [{ type: core.ViewChild, args: ['panel', { static: false },] }], overlayDir: [{ type: core.ViewChild, args: [overlay.CdkConnectedOverlay, { static: false },] }], options: [{ type: core.ContentChildren, args: [core$1.MatOption, { descendants: true },] }], optionGroups: [{ type: core.ContentChildren, args: [core$1.MatOptgroup,] }], panelClass: [{ type: core.Input }], customTrigger: [{ type: core.ContentChild, args: [MatSelectTrigger, { static: false },] }], placeholder: [{ type: core.Input }], required: [{ type: core.Input }], multiple: [{ type: core.Input }], disableOptionCentering: [{ type: core.Input }], compareWith: [{ type: core.Input }], value: [{ type: core.Input }], ariaLabel: [{ type: core.Input, args: ['aria-label',] }], ariaLabelledby: [{ type: core.Input, args: ['aria-labelledby',] }], errorStateMatcher: [{ type: core.Input }], sortComparator: [{ type: core.Input }], id: [{ type: core.Input }], openedChange: [{ type: core.Output }], _openedStream: [{ type: core.Output, args: ['opened',] }], _closedStream: [{ type: core.Output, args: ['closed',] }], selectionChange: [{ type: core.Output }], valueChange: [{ type: core.Output }] }; return MatSelect; }(_MatSelectMixinBase)); /** * @fileoverview added by tsickle * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc */ var MatSelectModule = /** @class */ (function () { function MatSelectModule() { } MatSelectModule.decorators = [ { type: core.NgModule, args: [{ imports: [ common.CommonModule, overlay.OverlayModule, core$1.MatOptionModule, core$1.MatCommonModule, ], exports: [formField.MatFormFieldModule, MatSelect, MatSelectTrigger, core$1.MatOptionModule, core$1.MatCommonModule], declarations: [MatSelect, MatSelectTrigger], providers: [MAT_SELECT_SCROLL_STRATEGY_PROVIDER] },] }, ]; return MatSelectModule; }()); exports.MatSelectModule = MatSelectModule; exports.MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY = MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY; exports.SELECT_PANEL_MAX_HEIGHT = SELECT_PANEL_MAX_HEIGHT; exports.SELECT_PANEL_PADDING_X = SELECT_PANEL_PADDING_X; exports.SELECT_PANEL_INDENT_PADDING_X = SELECT_PANEL_INDENT_PADDING_X; exports.SELECT_ITEM_HEIGHT_EM = SELECT_ITEM_HEIGHT_EM; exports.SELECT_MULTIPLE_PANEL_PADDING_X = SELECT_MULTIPLE_PANEL_PADDING_X; exports.SELECT_PANEL_VIEWPORT_PADDING = SELECT_PANEL_VIEWPORT_PADDING; exports.MAT_SELECT_SCROLL_STRATEGY = MAT_SELECT_SCROLL_STRATEGY; exports.MAT_SELECT_SCROLL_STRATEGY_PROVIDER = MAT_SELECT_SCROLL_STRATEGY_PROVIDER; exports.MatSelectChange = MatSelectChange; exports.MatSelectTrigger = MatSelectTrigger; exports.MatSelect = MatSelect; exports.matSelectAnimations = matSelectAnimations; exports.transformPanel = transformPanel; exports.fadeInContent = fadeInContent; Object.defineProperty(exports, '__esModule', { value: true }); }))); //# sourceMappingURL=material-select.umd.js.map