@angular/material
Version:
Angular Material
1,001 lines (974 loc) • 80.4 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/cdk/overlay'), require('@angular/common'), require('@angular/core'), require('@angular/material/core'), require('@angular/material/form-field'), require('@angular/cdk/a11y'), require('@angular/cdk/bidi'), require('@angular/cdk/coercion'), require('@angular/cdk/collections'), require('@angular/cdk/keycodes'), require('@angular/cdk/scrolling'), require('@angular/forms'), require('rxjs'), require('rxjs/operators'), require('@angular/animations')) :
typeof define === 'function' && define.amd ? define('@angular/material/select', ['exports', '@angular/cdk/overlay', '@angular/common', '@angular/core', '@angular/material/core', '@angular/material/form-field', '@angular/cdk/a11y', '@angular/cdk/bidi', '@angular/cdk/coercion', '@angular/cdk/collections', '@angular/cdk/keycodes', '@angular/cdk/scrolling', '@angular/forms', 'rxjs', 'rxjs/operators', '@angular/animations'], factory) :
(global = global || self, factory((global.ng = global.ng || {}, global.ng.material = global.ng.material || {}, global.ng.material.select = {}), global.ng.cdk.overlay, global.ng.common, global.ng.core, global.ng.material.core, global.ng.material.formField, global.ng.cdk.a11y, global.ng.cdk.bidi, global.ng.cdk.coercion, global.ng.cdk.collections, global.ng.cdk.keycodes, global.ng.cdk.scrolling, global.ng.forms, global.rxjs, global.rxjs.operators, global.ng.animations));
}(this, (function (exports, overlay, common, core, core$1, formField, a11y, bidi, coercion, collections, keycodes, scrolling, forms, rxjs, operators, animations) { '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 __());
}
var __assign = function() {
__assign = Object.assign || function __assign(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
function __rest(s, e) {
var t = {};
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
t[p] = s[p];
if (s != null && typeof Object.getOwnPropertySymbols === "function")
for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
t[p[i]] = s[p[i]];
}
return t;
}
function __decorate(decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
}
function __param(paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
}
function __metadata(metadataKey, metadataValue) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(metadataKey, metadataValue);
}
function __awaiter(thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
}
function __generator(thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
}
function __exportStar(m, exports) {
for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
}
function __values(o) {
var m = typeof Symbol === "function" && o[Symbol.iterator], i = 0;
if (m) return m.call(o);
return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
}
function __read(o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
}
function __spread() {
for (var ar = [], i = 0; i < arguments.length; i++)
ar = ar.concat(__read(arguments[i]));
return ar;
}
function __spreadArrays() {
for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;
for (var r = Array(s), k = 0, i = 0; i < il; i++)
for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
r[k] = a[j];
return r;
};
function __await(v) {
return this instanceof __await ? (this.v = v, this) : new __await(v);
}
function __asyncGenerator(thisArg, _arguments, generator) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var g = generator.apply(thisArg, _arguments || []), i, q = [];
return i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i;
function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }
function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }
function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }
function fulfill(value) { resume("next", value); }
function reject(value) { resume("throw", value); }
function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }
}
function __asyncDelegator(o) {
var i, p;
return i = {}, verb("next"), verb("throw", function (e) { throw e; }), verb("return"), i[Symbol.iterator] = function () { return this; }, i;
function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === "return" } : f ? f(v) : v; } : f; }
}
function __asyncValues(o) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var m = o[Symbol.asyncIterator], i;
return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i);
function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }
}
function __makeTemplateObject(cooked, raw) {
if (Object.defineProperty) { Object.defineProperty(cooked, "raw", { value: raw }); } else { cooked.raw = raw; }
return cooked;
};
function __importStar(mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
result.default = mod;
return result;
}
function __importDefault(mod) {
return (mod && mod.__esModule) ? mod : { default: mod };
}
/**
* @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
*/
/**
* 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
*/
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)',
transform: 'scaleY(1)'
})),
animations.state('showing-multiple', animations.style({
opacity: 1,
minWidth: 'calc(100% + 64px)',
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 })))
])
};
/**
* @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
*/
/**
* Returns an exception to be thrown when attempting to change a select's `multiple` option
* after initialization.
* @docs-private
*/
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
*/
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.
*/
function getMatSelectNonFunctionValueError() {
return Error('`compareWith` must be a function.');
}
/**
* @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
*/
var nextUniqueId = 0;
/**
* The following style constants are necessary to save here in order
* to properly calculate the alignment of the selected option over
* the trigger element.
*/
/** The max height of the select's overlay panel */
var SELECT_PANEL_MAX_HEIGHT = 256;
/** The panel's padding on the x-axis */
var SELECT_PANEL_PADDING_X = 16;
/** The panel's x axis padding if it is indented (e.g. there is an option group). */
var SELECT_PANEL_INDENT_PADDING_X = SELECT_PANEL_PADDING_X * 2;
/** The height of the select items in `em` units. */
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.
*/
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.
*/
var SELECT_PANEL_VIEWPORT_PADDING = 8;
/** Injection token that determines the scroll handling while a select is open. */
var MAT_SELECT_SCROLL_STRATEGY = new core.InjectionToken('mat-select-scroll-strategy');
/** @docs-private */
function MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY(overlay) {
return function () { return overlay.scrollStrategies.reposition(); };
}
/** Injection token that can be used to provide the default options the select module. */
var MAT_SELECT_CONFIG = new core.InjectionToken('MAT_SELECT_CONFIG');
/** @docs-private */
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 MatSelectChange = /** @class */ (function () {
function MatSelectChange(
/** Reference to the select that emitted the change event. */
source,
/** Current value of the select that emitted the event. */
value) {
this.source = source;
this.value = value;
}
return MatSelectChange;
}());
// Boilerplate for applying mixins to MatSelect.
/** @docs-private */
var 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;
}());
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, defaults) {
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 = 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 = function () { };
/** `View -> model callback called when select has been touched` */
_this._onTouched = 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 = rxjs.defer(function () {
var options = _this.options;
if (options) {
return options.changes.pipe(operators.startWith(options), operators.switchMap(function () { return rxjs.merge.apply(void 0, __spread(options.map(function (option) { return option.onSelectionChange; }))); }));
}
return _this._ngZone.onStable
.asObservable()
.pipe(operators.take(1), operators.switchMap(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(function (o) { return o; }), operators.map(function () { }));
/** Event emitted when the select has been closed. */
_this._closedStream = _this.openedChange.pipe(operators.filter(function (o) { return !o; }), operators.map(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;
if (defaults) {
if (defaults.disableOptionCentering != null) {
_this.disableOptionCentering = defaults.disableOptionCentering;
}
if (defaults.typeaheadDebounceInterval != null) {
_this.typeaheadDebounceInterval = defaults.typeaheadDebounceInterval;
}
}
return _this;
}
Object.defineProperty(MatSelect.prototype, "focused", {
/** Whether the select is focused. */
get: function () {
return this._focused || this._panelOpen;
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSelect.prototype, "placeholder", {
/** Placeholder to be shown if no value has been selected. */
get: function () { return this._placeholder; },
set: function (value) {
this._placeholder = value;
this.stateChanges.next();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSelect.prototype, "required", {
/** Whether the component is required. */
get: function () { return this._required; },
set: 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: function () { return this._multiple; },
set: 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: function () { return this._disableOptionCentering; },
set: 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 () { return this._compareWith; },
set: 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: function () { return this._value; },
set: function (newValue) {
if (newValue !== this._value) {
this.writeValue(newValue);
this._value = newValue;
}
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSelect.prototype, "typeaheadDebounceInterval", {
/** Time to wait in milliseconds after the last keystroke before moving focus to an item. */
get: function () { return this._typeaheadDebounceInterval; },
set: function (value) {
this._typeaheadDebounceInterval = coercion.coerceNumberProperty(value);
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSelect.prototype, "id", {
/** Unique id of the element. */
get: function () { return this._id; },
set: function (value) {
this._id = value || this._uid;
this.stateChanges.next();
},
enumerable: true,
configurable: true
});
MatSelect.prototype.ngOnInit = 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(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(function () {
if (_this._panelOpen) {
_this._triggerRect = _this.trigger.nativeElement.getBoundingClientRect();
_this._changeDetectorRef.markForCheck();
}
});
};
MatSelect.prototype.ngAfterContentInit = function () {
var _this = this;
this._initKeyManager();
this._selectionModel.changed.pipe(operators.takeUntil(this._destroy)).subscribe(function (event) {
event.added.forEach(function (option) { return option.select(); });
event.removed.forEach(function (option) { return option.deselect(); });
});
this.options.changes.pipe(operators.startWith(null), operators.takeUntil(this._destroy)).subscribe(function () {
_this._resetOptions();
_this._initializeSelection();
});
};
MatSelect.prototype.ngDoCheck = function () {
if (this.ngControl) {
this.updateErrorState();
}
};
MatSelect.prototype.ngOnChanges = 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();
}
if (changes['typeaheadDebounceInterval'] && this._keyManager) {
this._keyManager.withTypeAhead(this._typeaheadDebounceInterval);
}
};
MatSelect.prototype.ngOnDestroy = function () {
this._destroy.next();
this._destroy.complete();
this.stateChanges.complete();
};
/** Toggles the overlay panel open or closed. */
MatSelect.prototype.toggle = function () {
this.panelOpen ? this.close() : this.open();
};
/** Opens the overlay panel. */
MatSelect.prototype.open = 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(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. */
MatSelect.prototype.close = 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.
*/
MatSelect.prototype.writeValue = 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.
*/
MatSelect.prototype.registerOnChange = 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.
*/
MatSelect.prototype.registerOnTouched = 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.
*/
MatSelect.prototype.setDisabledState = 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: function () {
return this._panelOpen;
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatSelect.prototype, "selected", {
/** The currently selected option. */
get: 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: function () {
if (this.empty) {
return '';
}
if (this._multiple) {
var selectedOptions = this._selectionModel.selected.map(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. */
MatSelect.prototype._isRtl = function () {
return this._dir ? this._dir.value === 'rtl' : false;
};
/** Handles all keydown events on the select. */
MatSelect.prototype._handleKeydown = function (event) {
if (!this.disabled) {
this.panelOpen ? this._handleOpenKeydown(event) : this._handleClosedKeydown(event);
}
};
/** Handles keyboard events while the select is closed. */
MatSelect.prototype._handleClosedKeydown = function (event) {
var keyCode = event.keyCode;
var isArrowKey = keyCode === keycodes.DOWN_ARROW || keyCode === keycodes.UP_ARROW ||
keyCode === keycodes.LEFT_ARROW || keyCode === keycodes.RIGHT_ARROW;
var isOpenKey = keyCode === keycodes.ENTER || keyCode === keycodes.SPACE;
var manager = this._keyManager;
// Open the select on ALT + arrow key to match the native <select>
if (!manager.isTyping() && (isOpenKey && !keycodes.hasModifierKey(event)) ||
((this.multiple || event.altKey) && isArrowKey)) {
event.preventDefault(); // prevents the page from scrolling down when pressing space
this.open();
}
else if (!this.multiple) {
var previouslySelectedOption = this.selected;
if (keyCode === keycodes.HOME || keyCode === keycodes.END) {
keyCode === keycodes.HOME ? manager.setFirstItemActive() : manager.setLastItemActive();
event.preventDefault();
}
else {
manager.onKeydown(event);
}
var selectedOption = this.selected;
// Since the value has changed, we need to announce it ourselves.
if (selectedOption && previouslySelectedOption !== selectedOption) {
// We set a duration on the live announcement, because we want the live element to be
// cleared after a while so that users can't navigate to it using the arrow keys.
this._liveAnnouncer.announce(selectedOption.viewValue, 10000);
}
}
};
/** Handles keyboard events when the selected is open. */
MatSelect.prototype._handleOpenKeydown = function (event) {
var manager = this._keyManager;
var keyCode = event.keyCode;
var isArrowKey = keyCode === keycodes.DOWN_ARROW || keyCode === keycodes.UP_ARROW;
var isTyping = manager.isTyping();
if (keyCode === keycodes.HOME || keyCode === keycodes.END) {
event.preventDefault();
keyCode === keycodes.HOME ? manager.setFirstItemActive() : manager.setLastItemActive();
}
else if (isArrowKey && event.altKey) {
// Close the select on ALT + arrow key to match the native <select>
event.preventDefault();
this.close();
// Don't do anything in this case if the user is typing,
// because the typing sequence can include the space key.
}
else if (!isTyping && (keyCode === keycodes.ENTER || keyCode === keycodes.SPACE) && manager.activeItem &&
!keycodes.hasModifierKey(event)) {
event.preventDefault();
manager.activeItem._selectViaInteraction();
}
else if (!isTyping && this._multiple && keyCode === keycodes.A && event.ctrlKey) {
event.preventDefault();
var hasDeselectedOptions_1 = this.options.some(function (opt) { return !opt.disabled && !opt.selected; });
this.options.forEach(function (option) {
if (!option.disabled) {
hasDeselectedOptions_1 ? option.select() : option.deselect();
}
});
}
else {
var previouslyFocusedIndex = manager.activeItemIndex;
manager.onKeydown(event);
if (this._multiple && isArrowKey && event.shiftKey && manager.activeItem &&
manager.activeItemIndex !== previouslyFocusedIndex) {
manager.activeItem._selectViaInteraction();
}
}
};
MatSelect.prototype._onFocus = 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.
*/
MatSelect.prototype._onBlur = 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.
*/
MatSelect.prototype._onAttached = function () {
var _this = this;
this.overlayDir.positionChange.pipe(operators.take(1)).subscribe(function () {
_this._changeDetectorRef.detectChanges();
_this._calculateOverlayOffsetX();
_this.panel.nativeElement.scrollTop = _this._scrollTop;
});
};
/** Returns the theme to be used on the panel. */
MatSelect.prototype._getPanelTheme = function () {
return this._parentFormField ? "mat-" + this._parentFormField.color : '';
};
Object.defineProperty(MatSelect.prototype, "empty", {
/** Whether the select has a value. */
get: function () {
return !this._selectionModel || this._selectionModel.isEmpty();
},
enumerable: true,
configurable: true
});
MatSelect.prototype._initializeSelection = 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(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.
*/
MatSelect.prototype._setSelectionByValue = function (value) {
var _this = this;
if (this.multiple && value) {
if (!Array.isArray(value)) {
throw getMatSelectNonArrayValueError();
}
this._selectionModel.clear();
value.forEach(function (currentValue) { return _this._selectValue(currentValue); });
this._sortValues();
}
else {
this._selectionModel.clear();
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);
}
else if (!this.panelOpen) {
// Otherwise reset the highlighted option. Note that we only want to do this while
// closed, because doing it while open can shift the user's focus unnecessarily.
this._keyManager.setActiveItem(-1);
}
}
this._changeDetectorRef.markForCheck();
};
/**
* Finds and selects and option based on its value.
* @returns Option that has the corresponding value.
*/
MatSelect.prototype._selectValue = function (value) {
var _this = this;
var correspondingOption = this.options.find(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. */
MatSelect.prototype._initKeyManager = function () {
var _this = this;
this._keyManager = new a11y.ActiveDescendantKeyManager(this.options)
.withTypeAhead(this._typeaheadDebounceInterval)
.withVerticalOrientation()
.withHorizontalOrientation(this._isRtl() ? 'rtl' : 'ltr')
.withAllowedModifierKeys(['shiftKey']);
this._keyManager.tabOut.pipe(operators.takeUntil(this._destroy)).subscribe(function () {
// Select the active item when tabbing away. This is consistent with how the native
// select behaves. Note that we only want to do this in single selection mode.
if (!_this.multiple && _this._keyManager.activeItem) {
_this._keyManager.activeItem._selectViaInteraction();
}
// 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(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. */
MatSelect.prototype._resetOptions = function () {
var _this = this;
var changedOrDestroyed = rxjs.merge(this.options.changes, this._destroy);
this.optionSelectionChanges.pipe(operators.takeUntil(changedOrDestroyed)).subscribe(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, __spread(this.options.map(function (option) { return option._stateChanges; }))).pipe(operators.takeUntil(changedOrDestroyed))
.subscribe(function () {
_this._changeDetectorRef.markForCheck();
_this.stateChanges.next();
});
this._setOptionIds();
};
/** Invoked when an option is clicked. */
MatSelect.prototype._onSelect = fun