@angular/material
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Angular Material
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JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/cdk/keycodes'), require('@angular/core'), require('@angular/material/core'), require('tslib'), require('@angular/cdk/coercion'), require('@angular/cdk/platform'), require('rxjs'), require('rxjs/operators'), require('@angular/platform-browser/animations'), require('@angular/cdk/a11y'), require('@angular/cdk/bidi'), require('@angular/cdk/collections'), require('@angular/forms'), require('@angular/material/form-field')) :
typeof define === 'function' && define.amd ? define('@angular/material/chips', ['exports', '@angular/cdk/keycodes', '@angular/core', '@angular/material/core', 'tslib', '@angular/cdk/coercion', '@angular/cdk/platform', 'rxjs', 'rxjs/operators', '@angular/platform-browser/animations', '@angular/cdk/a11y', '@angular/cdk/bidi', '@angular/cdk/collections', '@angular/forms', '@angular/material/form-field'], factory) :
(global = global || self, factory((global.ng = global.ng || {}, global.ng.material = global.ng.material || {}, global.ng.material.chips = {}), global.ng.cdk.keycodes, global.ng.core, global.ng.material.core, global.tslib, global.ng.cdk.coercion, global.ng.cdk.platform, global.rxjs, global.rxjs.operators, global.ng.platformBrowser.animations, global.ng.cdk.a11y, global.ng.cdk.bidi, global.ng.cdk.collections, global.ng.forms, global.ng.material.formField));
}(this, (function (exports, keycodes, core, core$1, tslib, coercion, platform, rxjs, operators, animations, a11y, bidi, collections, forms, formField) { 'use strict';
/**
* @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
*/
/** Event object emitted by MatChip when selected or deselected. */
var MatChipSelectionChange = /** @class */ (function () {
function MatChipSelectionChange(
/** Reference to the chip that emitted the event. */
source,
/** Whether the chip that emitted the event is selected. */
selected,
/** Whether the selection change was a result of a user interaction. */
isUserInput) {
if (isUserInput === void 0) { isUserInput = false; }
this.source = source;
this.selected = selected;
this.isUserInput = isUserInput;
}
return MatChipSelectionChange;
}());
// Boilerplate for applying mixins to MatChip.
/** @docs-private */
var MatChipBase = /** @class */ (function () {
function MatChipBase(_elementRef) {
this._elementRef = _elementRef;
}
return MatChipBase;
}());
var _MatChipMixinBase = core$1.mixinColor(core$1.mixinDisableRipple(core$1.mixinDisabled(MatChipBase)), 'primary');
/**
* Dummy directive to add CSS class to chip avatar.
* @docs-private
*/
var MatChipAvatar = /** @class */ (function () {
function MatChipAvatar() {
}
MatChipAvatar.decorators = [
{ type: core.Directive, args: [{
selector: 'mat-chip-avatar, [matChipAvatar]',
host: { 'class': 'mat-chip-avatar' }
},] }
];
return MatChipAvatar;
}());
/**
* Dummy directive to add CSS class to chip trailing icon.
* @docs-private
*/
var MatChipTrailingIcon = /** @class */ (function () {
function MatChipTrailingIcon() {
}
MatChipTrailingIcon.decorators = [
{ type: core.Directive, args: [{
selector: 'mat-chip-trailing-icon, [matChipTrailingIcon]',
host: { 'class': 'mat-chip-trailing-icon' }
},] }
];
return MatChipTrailingIcon;
}());
/**
* Material design styled Chip component. Used inside the MatChipList component.
*/
var MatChip = /** @class */ (function (_super) {
tslib.__extends(MatChip, _super);
function MatChip(_elementRef, _ngZone, platform, globalRippleOptions,
// @breaking-change 8.0.0 `animationMode` parameter to become required.
animationMode,
// @breaking-change 9.0.0 `_changeDetectorRef` parameter to become required.
_changeDetectorRef) {
var _this = _super.call(this, _elementRef) || this;
_this._elementRef = _elementRef;
_this._ngZone = _ngZone;
_this._changeDetectorRef = _changeDetectorRef;
/** Whether the chip has focus. */
_this._hasFocus = false;
/** Whether the chip list is selectable */
_this.chipListSelectable = true;
/** Whether the chip list is in multi-selection mode. */
_this._chipListMultiple = false;
_this._selected = false;
_this._selectable = true;
_this._removable = true;
/** Emits when the chip is focused. */
_this._onFocus = new rxjs.Subject();
/** Emits when the chip is blured. */
_this._onBlur = new rxjs.Subject();
/** Emitted when the chip is selected or deselected. */
_this.selectionChange = new core.EventEmitter();
/** Emitted when the chip is destroyed. */
_this.destroyed = new core.EventEmitter();
/** Emitted when a chip is to be removed. */
_this.removed = new core.EventEmitter();
_this._addHostClassName();
_this._chipRipple = new core$1.RippleRenderer(_this, _ngZone, _elementRef, platform);
_this._chipRipple.setupTriggerEvents(_elementRef);
_this.rippleConfig = globalRippleOptions || {};
_this._animationsDisabled = animationMode === 'NoopAnimations';
return _this;
}
Object.defineProperty(MatChip.prototype, "rippleDisabled", {
/**
* Whether ripples are disabled on interaction
* @docs-private
*/
get: function () {
return this.disabled || this.disableRipple || !!this.rippleConfig.disabled;
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChip.prototype, "selected", {
/** Whether the chip is selected. */
get: function () { return this._selected; },
set: function (value) {
var coercedValue = coercion.coerceBooleanProperty(value);
if (coercedValue !== this._selected) {
this._selected = coercedValue;
this._dispatchSelectionChange();
}
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChip.prototype, "value", {
/** The value of the chip. Defaults to the content inside `<mat-chip>` tags. */
get: function () {
return this._value !== undefined
? this._value
: this._elementRef.nativeElement.textContent;
},
set: function (value) { this._value = value; },
enumerable: true,
configurable: true
});
Object.defineProperty(MatChip.prototype, "selectable", {
/**
* Whether or not the chip is selectable. When a chip is not selectable,
* changes to its selected state are always ignored. By default a chip is
* selectable, and it becomes non-selectable if its parent chip list is
* not selectable.
*/
get: function () { return this._selectable && this.chipListSelectable; },
set: function (value) {
this._selectable = coercion.coerceBooleanProperty(value);
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChip.prototype, "removable", {
/**
* Determines whether or not the chip displays the remove styling and emits (removed) events.
*/
get: function () { return this._removable; },
set: function (value) {
this._removable = coercion.coerceBooleanProperty(value);
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChip.prototype, "ariaSelected", {
/** The ARIA selected applied to the chip. */
get: function () {
// Remove the `aria-selected` when the chip is deselected in single-selection mode, because
// it adds noise to NVDA users where "not selected" will be read out for each chip.
return this.selectable && (this._chipListMultiple || this.selected) ?
this.selected.toString() : null;
},
enumerable: true,
configurable: true
});
MatChip.prototype._addHostClassName = function () {
var basicChipAttrName = 'mat-basic-chip';
var element = this._elementRef.nativeElement;
if (element.hasAttribute(basicChipAttrName) ||
element.tagName.toLowerCase() === basicChipAttrName) {
element.classList.add(basicChipAttrName);
return;
}
else {
element.classList.add('mat-standard-chip');
}
};
MatChip.prototype.ngOnDestroy = function () {
this.destroyed.emit({ chip: this });
this._chipRipple._removeTriggerEvents();
};
/** Selects the chip. */
MatChip.prototype.select = function () {
if (!this._selected) {
this._selected = true;
this._dispatchSelectionChange();
this._markForCheck();
}
};
/** Deselects the chip. */
MatChip.prototype.deselect = function () {
if (this._selected) {
this._selected = false;
this._dispatchSelectionChange();
this._markForCheck();
}
};
/** Select this chip and emit selected event */
MatChip.prototype.selectViaInteraction = function () {
if (!this._selected) {
this._selected = true;
this._dispatchSelectionChange(true);
this._markForCheck();
}
};
/** Toggles the current selected state of this chip. */
MatChip.prototype.toggleSelected = function (isUserInput) {
if (isUserInput === void 0) { isUserInput = false; }
this._selected = !this.selected;
this._dispatchSelectionChange(isUserInput);
this._markForCheck();
return this.selected;
};
/** Allows for programmatic focusing of the chip. */
MatChip.prototype.focus = function () {
if (!this._hasFocus) {
this._elementRef.nativeElement.focus();
this._onFocus.next({ chip: this });
}
this._hasFocus = true;
};
/**
* Allows for programmatic removal of the chip. Called by the MatChipList when the DELETE or
* BACKSPACE keys are pressed.
*
* Informs any listeners of the removal request. Does not remove the chip from the DOM.
*/
MatChip.prototype.remove = function () {
if (this.removable) {
this.removed.emit({ chip: this });
}
};
/** Handles click events on the chip. */
MatChip.prototype._handleClick = function (event) {
if (this.disabled) {
event.preventDefault();
}
else {
event.stopPropagation();
}
};
/** Handle custom key presses. */
MatChip.prototype._handleKeydown = function (event) {
if (this.disabled) {
return;
}
switch (event.keyCode) {
case keycodes.DELETE:
case keycodes.BACKSPACE:
// If we are removable, remove the focused chip
this.remove();
// Always prevent so page navigation does not occur
event.preventDefault();
break;
case keycodes.SPACE:
// If we are selectable, toggle the focused chip
if (this.selectable) {
this.toggleSelected(true);
}
// Always prevent space from scrolling the page since the list has focus
event.preventDefault();
break;
}
};
MatChip.prototype._blur = function () {
var _this = this;
// When animations are enabled, Angular may end up removing the chip from the DOM a little
// earlier than usual, causing it to be blurred and throwing off the logic in the chip list
// that moves focus not the next item. To work around the issue, we defer marking the chip
// as not focused until the next time the zone stabilizes.
this._ngZone.onStable
.asObservable()
.pipe(operators.take(1))
.subscribe(function () {
_this._ngZone.run(function () {
_this._hasFocus = false;
_this._onBlur.next({ chip: _this });
});
});
};
MatChip.prototype._dispatchSelectionChange = function (isUserInput) {
if (isUserInput === void 0) { isUserInput = false; }
this.selectionChange.emit({
source: this,
isUserInput: isUserInput,
selected: this._selected
});
};
MatChip.prototype._markForCheck = function () {
// @breaking-change 9.0.0 Remove this method once the _changeDetectorRef is a required param.
if (this._changeDetectorRef) {
this._changeDetectorRef.markForCheck();
}
};
MatChip.decorators = [
{ type: core.Directive, args: [{
selector: "mat-basic-chip, [mat-basic-chip], mat-chip, [mat-chip]",
inputs: ['color', 'disabled', 'disableRipple'],
exportAs: 'matChip',
host: {
'class': 'mat-chip',
'[attr.tabindex]': 'disabled ? null : -1',
'role': 'option',
'[class.mat-chip-selected]': 'selected',
'[class.mat-chip-with-avatar]': 'avatar',
'[class.mat-chip-with-trailing-icon]': 'trailingIcon || removeIcon',
'[class.mat-chip-disabled]': 'disabled',
'[class._mat-animation-noopable]': '_animationsDisabled',
'[attr.disabled]': 'disabled || null',
'[attr.aria-disabled]': 'disabled.toString()',
'[attr.aria-selected]': 'ariaSelected',
'(click)': '_handleClick($event)',
'(keydown)': '_handleKeydown($event)',
'(focus)': 'focus()',
'(blur)': '_blur()',
},
},] }
];
/** @nocollapse */
MatChip.ctorParameters = function () { return [
{ type: core.ElementRef },
{ type: core.NgZone },
{ type: platform.Platform },
{ type: undefined, decorators: [{ type: core.Optional }, { type: core.Inject, args: [core$1.MAT_RIPPLE_GLOBAL_OPTIONS,] }] },
{ type: String, decorators: [{ type: core.Optional }, { type: core.Inject, args: [animations.ANIMATION_MODULE_TYPE,] }] },
{ type: core.ChangeDetectorRef }
]; };
MatChip.propDecorators = {
avatar: [{ type: core.ContentChild, args: [MatChipAvatar,] }],
trailingIcon: [{ type: core.ContentChild, args: [MatChipTrailingIcon,] }],
removeIcon: [{ type: core.ContentChild, args: [core.forwardRef(function () { return MatChipRemove; }),] }],
selected: [{ type: core.Input }],
value: [{ type: core.Input }],
selectable: [{ type: core.Input }],
removable: [{ type: core.Input }],
selectionChange: [{ type: core.Output }],
destroyed: [{ type: core.Output }],
removed: [{ type: core.Output }]
};
return MatChip;
}(_MatChipMixinBase));
/**
* Applies proper (click) support and adds styling for use with the Material Design "cancel" icon
* available at https://material.io/icons/#ic_cancel.
*
* Example:
*
* `<mat-chip>
* <mat-icon matChipRemove>cancel</mat-icon>
* </mat-chip>`
*
* You *may* use a custom icon, but you may need to override the `mat-chip-remove` positioning
* styles to properly center the icon within the chip.
*/
var MatChipRemove = /** @class */ (function () {
function MatChipRemove(_parentChip) {
this._parentChip = _parentChip;
}
/** Calls the parent chip's public `remove()` method if applicable. */
MatChipRemove.prototype._handleClick = function (event) {
var parentChip = this._parentChip;
if (parentChip.removable && !parentChip.disabled) {
parentChip.remove();
}
// We need to stop event propagation because otherwise the event will bubble up to the
// form field and cause the `onContainerClick` method to be invoked. This method would then
// reset the focused chip that has been focused after chip removal. Usually the parent
// the parent click listener of the `MatChip` would prevent propagation, but it can happen
// that the chip is being removed before the event bubbles up.
event.stopPropagation();
};
MatChipRemove.decorators = [
{ type: core.Directive, args: [{
selector: '[matChipRemove]',
host: {
'class': 'mat-chip-remove mat-chip-trailing-icon',
'(click)': '_handleClick($event)',
// Prevent accidental form submissions.
'type': 'button',
}
},] }
];
/** @nocollapse */
MatChipRemove.ctorParameters = function () { return [
{ type: MatChip }
]; };
return MatChipRemove;
}());
/**
* @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
*/
/** Injection token to be used to override the default options for the chips module. */
var MAT_CHIPS_DEFAULT_OPTIONS = new core.InjectionToken('mat-chips-default-options');
/**
* @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
*/
// Boilerplate for applying mixins to MatChipList.
/** @docs-private */
var MatChipListBase = /** @class */ (function () {
function MatChipListBase(_defaultErrorStateMatcher, _parentForm, _parentFormGroup,
/** @docs-private */
ngControl) {
this._defaultErrorStateMatcher = _defaultErrorStateMatcher;
this._parentForm = _parentForm;
this._parentFormGroup = _parentFormGroup;
this.ngControl = ngControl;
}
return MatChipListBase;
}());
var _MatChipListMixinBase = core$1.mixinErrorState(MatChipListBase);
// Increasing integer for generating unique ids for chip-list components.
var nextUniqueId = 0;
/** Change event object that is emitted when the chip list value has changed. */
var MatChipListChange = /** @class */ (function () {
function MatChipListChange(
/** Chip list that emitted the event. */
source,
/** Value of the chip list when the event was emitted. */
value) {
this.source = source;
this.value = value;
}
return MatChipListChange;
}());
/**
* A material design chips component (named ChipList for its similarity to the List component).
*/
var MatChipList = /** @class */ (function (_super) {
tslib.__extends(MatChipList, _super);
function MatChipList(_elementRef, _changeDetectorRef, _dir, _parentForm, _parentFormGroup, _defaultErrorStateMatcher,
/** @docs-private */
ngControl) {
var _this = _super.call(this, _defaultErrorStateMatcher, _parentForm, _parentFormGroup, ngControl) || this;
_this._elementRef = _elementRef;
_this._changeDetectorRef = _changeDetectorRef;
_this._dir = _dir;
_this.ngControl = ngControl;
/**
* Implemented as part of MatFormFieldControl.
* @docs-private
*/
_this.controlType = 'mat-chip-list';
/**
* When a chip is destroyed, we store the index of the destroyed chip until the chips
* query list notifies about the update. This is necessary because we cannot determine an
* appropriate chip that should receive focus until the array of chips updated completely.
*/
_this._lastDestroyedChipIndex = null;
/** Subject that emits when the component has been destroyed. */
_this._destroyed = new rxjs.Subject();
/** Uid of the chip list */
_this._uid = "mat-chip-list-" + nextUniqueId++;
/** Tab index for the chip list. */
_this._tabIndex = 0;
/**
* User defined tab index.
* When it is not null, use user defined tab index. Otherwise use _tabIndex
*/
_this._userTabIndex = null;
/** Function when touched */
_this._onTouched = function () { };
/** Function when changed */
_this._onChange = function () { };
_this._multiple = false;
_this._compareWith = function (o1, o2) { return o1 === o2; };
_this._required = false;
_this._disabled = false;
/** Orientation of the chip list. */
_this.ariaOrientation = 'horizontal';
_this._selectable = true;
/** Event emitted when the selected chip list value has been changed by the user. */
_this.change = new core.EventEmitter();
/**
* Event that emits whenever the raw value of the chip-list 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) {
_this.ngControl.valueAccessor = _this;
}
return _this;
}
Object.defineProperty(MatChipList.prototype, "selected", {
/** The array of selected chips inside chip list. */
get: function () {
return this.multiple ? this._selectionModel.selected : this._selectionModel.selected[0];
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "role", {
/** The ARIA role applied to the chip list. */
get: function () { return this.empty ? null : 'listbox'; },
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "multiple", {
/** Whether the user should be allowed to select multiple chips. */
get: function () { return this._multiple; },
set: function (value) {
this._multiple = coercion.coerceBooleanProperty(value);
this._syncChipsState();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "compareWith", {
/**
* A 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) {
this._compareWith = fn;
if (this._selectionModel) {
// A different comparator means the selection could change.
this._initializeSelection();
}
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "value", {
/**
* Implemented as part of MatFormFieldControl.
* @docs-private
*/
get: function () { return this._value; },
set: function (value) {
this.writeValue(value);
this._value = value;
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "id", {
/**
* Implemented as part of MatFormFieldControl.
* @docs-private
*/
get: function () {
return this._chipInput ? this._chipInput.id : this._uid;
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "required", {
/**
* Implemented as part of MatFormFieldControl.
* @docs-private
*/
get: function () { return this._required; },
set: function (value) {
this._required = coercion.coerceBooleanProperty(value);
this.stateChanges.next();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "placeholder", {
/**
* Implemented as part of MatFormFieldControl.
* @docs-private
*/
get: function () {
return this._chipInput ? this._chipInput.placeholder : this._placeholder;
},
set: function (value) {
this._placeholder = value;
this.stateChanges.next();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "focused", {
/** Whether any chips or the matChipInput inside of this chip-list has focus. */
get: function () {
return (this._chipInput && this._chipInput.focused) || this._hasFocusedChip();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "empty", {
/**
* Implemented as part of MatFormFieldControl.
* @docs-private
*/
get: function () {
return (!this._chipInput || this._chipInput.empty) && this.chips.length === 0;
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "shouldLabelFloat", {
/**
* Implemented as part of MatFormFieldControl.
* @docs-private
*/
get: function () { return !this.empty || this.focused; },
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "disabled", {
/**
* Implemented as part of MatFormFieldControl.
* @docs-private
*/
get: function () { return this.ngControl ? !!this.ngControl.disabled : this._disabled; },
set: function (value) {
this._disabled = coercion.coerceBooleanProperty(value);
this._syncChipsState();
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "selectable", {
/**
* Whether or not this chip list is selectable. When a chip list is not selectable,
* the selected states for all the chips inside the chip list are always ignored.
*/
get: function () { return this._selectable; },
set: function (value) {
var _this = this;
this._selectable = coercion.coerceBooleanProperty(value);
if (this.chips) {
this.chips.forEach(function (chip) { return chip.chipListSelectable = _this._selectable; });
}
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "tabIndex", {
set: function (value) {
this._userTabIndex = value;
this._tabIndex = value;
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "chipSelectionChanges", {
/** Combined stream of all of the child chips' selection change events. */
get: function () {
return rxjs.merge.apply(void 0, tslib.__spread(this.chips.map(function (chip) { return chip.selectionChange; })));
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "chipFocusChanges", {
/** Combined stream of all of the child chips' focus change events. */
get: function () {
return rxjs.merge.apply(void 0, tslib.__spread(this.chips.map(function (chip) { return chip._onFocus; })));
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "chipBlurChanges", {
/** Combined stream of all of the child chips' blur change events. */
get: function () {
return rxjs.merge.apply(void 0, tslib.__spread(this.chips.map(function (chip) { return chip._onBlur; })));
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatChipList.prototype, "chipRemoveChanges", {
/** Combined stream of all of the child chips' remove change events. */
get: function () {
return rxjs.merge.apply(void 0, tslib.__spread(this.chips.map(function (chip) { return chip.destroyed; })));
},
enumerable: true,
configurable: true
});
MatChipList.prototype.ngAfterContentInit = function () {
var _this = this;
this._keyManager = new a11y.FocusKeyManager(this.chips)
.withWrap()
.withVerticalOrientation()
.withHorizontalOrientation(this._dir ? this._dir.value : 'ltr');
if (this._dir) {
this._dir.change
.pipe(operators.takeUntil(this._destroyed))
.subscribe(function (dir) { return _this._keyManager.withHorizontalOrientation(dir); });
}
this._keyManager.tabOut.pipe(operators.takeUntil(this._destroyed)).subscribe(function () {
_this._allowFocusEscape();
});
// When the list changes, re-subscribe
this.chips.changes.pipe(operators.startWith(null), operators.takeUntil(this._destroyed)).subscribe(function () {
if (_this.disabled) {
// Since this happens after the content has been
// checked, we need to defer it to the next tick.
Promise.resolve().then(function () {
_this._syncChipsState();
});
}
_this._resetChips();
// Reset chips selected/deselected status
_this._initializeSelection();
// Check to see if we need to update our tab index
_this._updateTabIndex();
// Check to see if we have a destroyed chip and need to refocus
_this._updateFocusForDestroyedChips();
_this.stateChanges.next();
});
};
MatChipList.prototype.ngOnInit = function () {
this._selectionModel = new collections.SelectionModel(this.multiple, undefined, false);
this.stateChanges.next();
};
MatChipList.prototype.ngDoCheck = function () {
if (this.ngControl) {
// We need to re-evaluate this on every change detection cycle, because there are some
// error triggers that we can't subscribe to (e.g. parent form submissions). This means
// that whatever logic is in here has to be super lean or we risk destroying the performance.
this.updateErrorState();
}
};
MatChipList.prototype.ngOnDestroy = function () {
this._destroyed.next();
this._destroyed.complete();
this.stateChanges.complete();
this._dropSubscriptions();
};
/** Associates an HTML input element with this chip list. */
MatChipList.prototype.registerInput = function (inputElement) {
this._chipInput = inputElement;
};
/**
* Implemented as part of MatFormFieldControl.
* @docs-private
*/
MatChipList.prototype.setDescribedByIds = function (ids) { this._ariaDescribedby = ids.join(' '); };
// Implemented as part of ControlValueAccessor.
MatChipList.prototype.writeValue = function (value) {
if (this.chips) {
this._setSelectionByValue(value, false);
}
};
// Implemented as part of ControlValueAccessor.
MatChipList.prototype.registerOnChange = function (fn) {
this._onChange = fn;
};
// Implemented as part of ControlValueAccessor.
MatChipList.prototype.registerOnTouched = function (fn) {
this._onTouched = fn;
};
// Implemented as part of ControlValueAccessor.
MatChipList.prototype.setDisabledState = function (isDisabled) {
this.disabled = isDisabled;
this.stateChanges.next();
};
/**
* Implemented as part of MatFormFieldControl.
* @docs-private
*/
MatChipList.prototype.onContainerClick = function (event) {
if (!this._originatesFromChip(event)) {
this.focus();
}
};
/**
* Focuses the first non-disabled chip in this chip list, or the associated input when there
* are no eligible chips.
*/
MatChipList.prototype.focus = function (options) {
if (this.disabled) {
return;
}
// TODO: ARIA says this should focus the first `selected` chip if any are selected.
// Focus on first element if there's no chipInput inside chip-list
if (this._chipInput && this._chipInput.focused) {
// do nothing
}
else if (this.chips.length > 0) {
this._keyManager.setFirstItemActive();
this.stateChanges.next();
}
else {
this._focusInput(options);
this.stateChanges.next();
}
};
/** Attempt to focus an input if we have one. */
MatChipList.prototype._focusInput = function (options) {
if (this._chipInput) {
this._chipInput.focus(options);
}
};
/**
* Pass events to the keyboard manager. Available here for tests.
*/
MatChipList.prototype._keydown = function (event) {
var target = event.target;
// If they are on an empty input and hit backspace, focus the last chip
if (event.keyCode === keycodes.BACKSPACE && this._isInputEmpty(target)) {
this._keyManager.setLastItemActive();
event.preventDefault();
}
else if (target && target.classList.contains('mat-chip')) {
if (event.keyCode === keycodes.HOME) {
this._keyManager.setFirstItemActive();
event.preventDefault();
}
else if (event.keyCode === keycodes.END) {
this._keyManager.setLastItemActive();
event.preventDefault();
}
else {
this._keyManager.onKeydown(event);
}
this.stateChanges.next();
}
};
/**
* Check the tab index as you should not be allowed to focus an empty list.
*/
MatChipList.prototype._updateTabIndex = function () {
// If we have 0 chips, we should not allow keyboard focus
this._tabIndex = this._userTabIndex || (this.chips.length === 0 ? -1 : 0);
};
/**
* If the amount of chips changed, we need to update the
* key manager state and focus the next closest chip.
*/
MatChipList.prototype._updateFocusForDestroyedChips = function () {
// Move focus to the closest chip. If no other chips remain, focus the chip-list itself.
if (this._lastDestroyedChipIndex != null) {
if (this.chips.length) {
var newChipIndex = Math.min(this._lastDestroyedChipIndex, this.chips.length - 1);
this._keyManager.setActiveItem(newChipIndex);
}
else {
this.focus();
}
}
this._lastDestroyedChipIndex = null;
};
/**
* Utility to ensure all indexes are valid.
*
* @param index The index to be checked.
* @returns True if the index is valid for our list of chips.
*/
MatChipList.prototype._isValidIndex = function (index) {
return index >= 0 && index < this.chips.length;
};
MatChipList.prototype._isInputEmpty = function (element) {
if (element && element.nodeName.toLowerCase() === 'input') {
var input = element;
return !input.value;
}
return false;
};
MatChipList.prototype._setSelectionByValue = function (value, isUserInput) {
var _this = this;
if (isUserInput === void 0) { isUserInput = true; }
this._clearSelection();
this.chips.forEach(function (chip) { return chip.deselect(); });
if (Array.isArray(value)) {
value.forEach(function (currentValue) { return _this._selectValue(currentValue, isUserInput); });
this._sortValues();
}
else {
var correspondingChip = this._selectValue(value, isUserInput);
// Shift focus to the active item. Note that we shouldn't do this in multiple
// mode, because we don't know what chip the user interacted with last.
if (correspondingChip) {
if (isUserInput) {
this._keyManager.setActiveItem(correspondingChip);
}
}
}
};
/**
* Finds and selects the chip based on its value.
* @returns Chip that has the corresponding value.
*/
MatChipList.prototype._selectValue = function (value, isUserInput) {
var _this = this;
if (isUserInput === void 0) { isUserInput = true; }
var correspondingChip = this.chips.find(function (chip) {
return chip.value != null && _this._compareWith(chip.value, value);
});
if (correspondingChip) {
isUserInput ? correspondingChip.selectViaInteraction() : correspondingChip.select();
this._selectionModel.select(correspondingChip);
}
return correspondingChip;
};
MatChipList.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 () {
if (_this.ngControl || _this._value) {
_this._setSelectionByValue(_this.ngControl ? _this.ngControl.value : _this._value, false);
_this.stateChanges.next();
}
});
};
/**
* Deselects every chip in the list.
* @param skip Chip that should not be deselected.
*/
MatChipList.prototype._clearSelection = function (skip) {
this._selectionModel.clear();
this.chips.forEach(function (chip) {
if (chip !== skip) {
chip.deselect();
}
});
this.stateChanges.next();
};
/**
* Sorts the model values, ensuring that they keep the same
* order that they have in the panel.
*/
MatChipList.prototype._sortValues = function () {
var _this = this;
if (this._multiple) {
this._selectionModel.clear();
this.chips.forEach(function (chip) {
if (chip.selected) {
_this._selectionModel.select(chip);
}
});
this.stateChanges.next();
}
};
/** Emits change event to set the model value. */
MatChipList.prototype._propagateChanges = function (fallbackValue) {
var valueToEmit = null;
if (Array.isArray(this.selected)) {
valueToEmit = this.selected.map(function (chip) { return chip.value; });
}
else {
valueToEmit = this.selected ? this.selected.value : fallbackValue;
}
this._value = valueToEmit;
this.change.emit(new MatChipListChange(this, valueToEmit));
this.valueChange.emit(valueToEmit);
this._onChange(valueToEmit);
this._changeDetectorRef.markForCheck();
};
/** When blurred, mark the field as touched when focus moved outside the chip list. */
MatChipList.prototype._blur = function () {
var _this = this;
if (!this._hasFocusedChip()) {
this._keyManager.setActiveItem(-1);
}
if (!this.disabled) {
if (this._chipInput) {
// If there's a chip input, we should check whether the focus moved to chip input.
// If the focus is not moved to chip input, mark the field as touched. If the focus moved
// to chip input, do nothing.
// Timeout is needed to wait for the focus() event trigger on chip input.
setTimeout(function () {
if (!_this.focused) {
_this._markAsTouched();
}
});
}
else {
// If there's no chip input, then mark the field as touched.
this._markAsTouched();
}
}
};
/** Mark the field as touched */
MatChipList.prototype._markAsTouched = function () {
this._onTouched();
this._changeDetectorRef.markForCheck();
this.stateChanges.next();
};
/**
* Removes the `tabindex` from the chip list and resets it back afterwards, allowing the
* user to tab out of it. This prevents the list from capturing focus and redirecting
* it back to the first chip, creating a focus trap, if it user tries to tab away.
*/
MatChipList.prototype._allowFocusEscape = function () {
var _this = this;
if (this._tabIndex !== -1) {
this._tabIndex = -1;
setTimeout(function () {
_this._tabIndex = _this._userTabIndex || 0;
_this._changeDetectorRef.markForCheck();
});
}
};
MatChipList.prototype._resetChips = function () {
this._dropSubscriptions();
this._listenToChipsFocus();
this._listenToChipsSelection();
this._listenToChipsRemoved();
};
MatChipList.prototype._dropSubscriptions = function () {
if (this._chipFocusSubscription) {
this._chipFocusSubscription.unsubscribe();
this._chipFocusSubscription = null;
}
if (this._chipBlurSubscription) {
this._chipBlurSubscription.unsubscribe();
this._chipBlurSubscription = null;
}
if (this._chipSelectionSubscription) {
this._chipSelectionSubscription.unsubscribe();
this._chipSelectionSubscription = null;
}
if (this._chipRemoveSubscription) {
this._chipRemoveSubscription.unsubscribe();
this._chipRemoveSubscription = null;
}
};
/** Listens to user-generated selection events on each chip. */
MatChipList.prototype._listenToChipsSelection = function () {
var _this = this;
this._chipSelectionSubscription = this.chipSelectionChanges.subscribe(function (event) {
event.source.selected
? _this._selectionModel.select(event.source)
: _this._selectionModel.deselect(event.source);
// For single selection chip list, make sure the deselected value is unselected.
if (!_this.multiple) {
_this.chips.forEach(function (chip) {
if (!_this._selectionModel.isSelected(chip) && chip.selected) {
chip.deselect();
}
});
}
if (event.isUserInput) {
_this._propagateChanges();
}
});
};
/** Listens to user-generated selection events on each chip. */
MatChipList.prototype._listenToChipsFocus = function () {
var _this = this;
this._chipFocusSubscription = this.chipFocusChanges.subscribe(function (event) {
var chipIndex = _this.chips.toArray().indexOf(event.chip);
if (_this._isValidIndex(chipIndex)) {
_this._keyManager.updateActiveItem(chipIndex);
}
_this.stateChanges.next();
});
this._chipBlurSubscription = this.chipBlurChanges.subscribe(function () {
_this._blur();
_this.stateChanges.next();
});
};
MatChipList.prototype._listenToChipsRemoved = function () {
var _this = this;
this._chipRemoveSubscription = this.chipRemoveChanges.subscribe(function (event) {
var chip = event.chip;
var chipIndex = _this.chips.toArray().indexOf(event.chip);
// In case the chip that will be removed is currently focused, we temporarily store
// the index in order to be able to determine an appropriate sibling chip that will
// receive focus.
if (_this._isValidIndex(chipIndex) && chip._hasFocus) {
_this._lastDestroyedChipIndex = chipIndex;
}
});
};
/** Checks whether an event comes from inside a chip element. */
MatChipList.prototype._originatesFromChip = function (event) {
var currentElement = event.target;
while (currentElement && currentElement !== this._elementRef.nativeElement) {
if (currentElement.classList.contains('mat-chip')) {
return true;
}
currentElement = currentElement.parentElement;
}
return false;
};
/** Checks whether any of the chips is focused. */
MatChipList.prototype._hasFocusedChip = function () {
return this.chips.some(function (chip) { return chip._hasFocus; });
};
/** Syncs the list's state with the individual chips. */
MatChipList.prototype._syncChipsState = function () {
var _this = this;
if (this.chips) {
this.chips.forEach(function (chip) {