/**
* @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
*/
import { Directive, ElementRef, forwardRef, Host, Input, Optional, Renderer2, ɵRuntimeError as RuntimeError } from '@angular/core';
import { BuiltInControlValueAccessor, NG_VALUE_ACCESSOR } from './control_value_accessor';
import * as i0 from "@angular/core";
export const SELECT_MULTIPLE_VALUE_ACCESSOR = {
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => SelectMultipleControlValueAccessor),
multi: true
};
function _buildValueString(id, value) {
if (id == null)
return `${value}`;
if (typeof value === 'string')
value = `'${value}'`;
if (value && typeof value === 'object')
value = 'Object';
return `${id}: ${value}`.slice(0, 50);
}
function _extractId(valueString) {
return valueString.split(':')[0];
}
/** Mock interface for HTMLCollection */
class HTMLCollection {
}
/**
* @description
* The `ControlValueAccessor` for writing multi-select control values and listening to multi-select
* control changes. The value accessor is used by the `FormControlDirective`, `FormControlName`, and
* `NgModel` directives.
*
* @see `SelectControlValueAccessor`
*
* @usageNotes
*
* ### Using a multi-select control
*
* The follow example shows you how to use a multi-select control with a reactive form.
*
* ```ts
* const countryControl = new FormControl();
* ```
*
* ```
*
*
* {{ country.name }}
*
*
* ```
*
* ### Customizing option selection
*
* To customize the default option comparison algorithm, `` supports `compareWith` input.
* See the `SelectControlValueAccessor` for usage.
*
* @ngModule ReactiveFormsModule
* @ngModule FormsModule
* @publicApi
*/
export class SelectMultipleControlValueAccessor extends BuiltInControlValueAccessor {
constructor() {
super(...arguments);
/** @internal */
this._optionMap = new Map();
/** @internal */
this._idCounter = 0;
this._compareWith = Object.is;
}
/**
* @description
* Tracks the option comparison algorithm for tracking identities when
* checking for changes.
*/
set compareWith(fn) {
if (typeof fn !== 'function' && (typeof ngDevMode === 'undefined' || ngDevMode)) {
throw new RuntimeError(1201 /* RuntimeErrorCode.COMPAREWITH_NOT_A_FN */, `compareWith must be a function, but received ${JSON.stringify(fn)}`);
}
this._compareWith = fn;
}
/**
* Sets the "value" property on one or of more of the select's options.
* @nodoc
*/
writeValue(value) {
this.value = value;
let optionSelectedStateSetter;
if (Array.isArray(value)) {
// convert values to ids
const ids = value.map((v) => this._getOptionId(v));
optionSelectedStateSetter = (opt, o) => {
opt._setSelected(ids.indexOf(o.toString()) > -1);
};
}
else {
optionSelectedStateSetter = (opt, o) => {
opt._setSelected(false);
};
}
this._optionMap.forEach(optionSelectedStateSetter);
}
/**
* Registers a function called when the control value changes
* and writes an array of the selected options.
* @nodoc
*/
registerOnChange(fn) {
this.onChange = (element) => {
const selected = [];
const selectedOptions = element.selectedOptions;
if (selectedOptions !== undefined) {
const options = selectedOptions;
for (let i = 0; i < options.length; i++) {
const opt = options[i];
const val = this._getOptionValue(opt.value);
selected.push(val);
}
}
// Degrade to use `options` when `selectedOptions` property is not available.
// Note: the `selectedOptions` is available in all supported browsers, but the Domino lib
// doesn't have it currently, see https://github.com/fgnass/domino/issues/177.
else {
const options = element.options;
for (let i = 0; i < options.length; i++) {
const opt = options[i];
if (opt.selected) {
const val = this._getOptionValue(opt.value);
selected.push(val);
}
}
}
this.value = selected;
fn(selected);
};
}
/** @internal */
_registerOption(value) {
const id = (this._idCounter++).toString();
this._optionMap.set(id, value);
return id;
}
/** @internal */
_getOptionId(value) {
for (const id of Array.from(this._optionMap.keys())) {
if (this._compareWith(this._optionMap.get(id)._value, value))
return id;
}
return null;
}
/** @internal */
_getOptionValue(valueString) {
const id = _extractId(valueString);
return this._optionMap.has(id) ? this._optionMap.get(id)._value : valueString;
}
}
SelectMultipleControlValueAccessor.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.2.8", ngImport: i0, type: SelectMultipleControlValueAccessor, deps: null, target: i0.ɵɵFactoryTarget.Directive });
SelectMultipleControlValueAccessor.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "14.2.8", type: SelectMultipleControlValueAccessor, selector: "select[multiple][formControlName],select[multiple][formControl],select[multiple][ngModel]", inputs: { compareWith: "compareWith" }, host: { listeners: { "change": "onChange($event.target)", "blur": "onTouched()" } }, providers: [SELECT_MULTIPLE_VALUE_ACCESSOR], usesInheritance: true, ngImport: i0 });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.2.8", ngImport: i0, type: SelectMultipleControlValueAccessor, decorators: [{
type: Directive,
args: [{
selector: 'select[multiple][formControlName],select[multiple][formControl],select[multiple][ngModel]',
host: { '(change)': 'onChange($event.target)', '(blur)': 'onTouched()' },
providers: [SELECT_MULTIPLE_VALUE_ACCESSOR]
}]
}], propDecorators: { compareWith: [{
type: Input
}] } });
/**
* @description
* Marks `` as dynamic, so Angular can be notified when options change.
*
* @see `SelectMultipleControlValueAccessor`
*
* @ngModule ReactiveFormsModule
* @ngModule FormsModule
* @publicApi
*/
export class ɵNgSelectMultipleOption {
constructor(_element, _renderer, _select) {
this._element = _element;
this._renderer = _renderer;
this._select = _select;
if (this._select) {
this.id = this._select._registerOption(this);
}
}
/**
* @description
* Tracks the value bound to the option element. Unlike the value binding,
* ngValue supports binding to objects.
*/
set ngValue(value) {
if (this._select == null)
return;
this._value = value;
this._setElementValue(_buildValueString(this.id, value));
this._select.writeValue(this._select.value);
}
/**
* @description
* Tracks simple string values bound to the option element.
* For objects, use the `ngValue` input binding.
*/
set value(value) {
if (this._select) {
this._value = value;
this._setElementValue(_buildValueString(this.id, value));
this._select.writeValue(this._select.value);
}
else {
this._setElementValue(value);
}
}
/** @internal */
_setElementValue(value) {
this._renderer.setProperty(this._element.nativeElement, 'value', value);
}
/** @internal */
_setSelected(selected) {
this._renderer.setProperty(this._element.nativeElement, 'selected', selected);
}
/** @nodoc */
ngOnDestroy() {
if (this._select) {
this._select._optionMap.delete(this.id);
this._select.writeValue(this._select.value);
}
}
}
ɵNgSelectMultipleOption.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.2.8", ngImport: i0, type: ɵNgSelectMultipleOption, deps: [{ token: i0.ElementRef }, { token: i0.Renderer2 }, { token: SelectMultipleControlValueAccessor, host: true, optional: true }], target: i0.ɵɵFactoryTarget.Directive });
ɵNgSelectMultipleOption.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "14.2.8", type: ɵNgSelectMultipleOption, selector: "option", inputs: { ngValue: "ngValue", value: "value" }, ngImport: i0 });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.2.8", ngImport: i0, type: ɵNgSelectMultipleOption, decorators: [{
type: Directive,
args: [{ selector: 'option' }]
}], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.Renderer2 }, { type: SelectMultipleControlValueAccessor, decorators: [{
type: Optional
}, {
type: Host
}] }]; }, propDecorators: { ngValue: [{
type: Input,
args: ['ngValue']
}], value: [{
type: Input,
args: ['value']
}] } });
export { ɵNgSelectMultipleOption as NgSelectMultipleOption };
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {Directive, ElementRef, forwardRef, Host, Input, OnDestroy, Optional, Renderer2, StaticProvider, ɵRuntimeError as RuntimeError} from '@angular/core';\n\nimport {RuntimeErrorCode} from '../errors';\n\nimport {BuiltInControlValueAccessor, ControlValueAccessor, NG_VALUE_ACCESSOR} from './control_value_accessor';\n\nexport const SELECT_MULTIPLE_VALUE_ACCESSOR: StaticProvider = {\n  provide: NG_VALUE_ACCESSOR,\n  useExisting: forwardRef(() => SelectMultipleControlValueAccessor),\n  multi: true\n};\n\nfunction _buildValueString(id: string, value: any): string {\n  if (id == null) return `${value}`;\n  if (typeof value === 'string') value = `'${value}'`;\n  if (value && typeof value === 'object') value = 'Object';\n  return `${id}: ${value}`.slice(0, 50);\n}\n\nfunction _extractId(valueString: string): string {\n  return valueString.split(':')[0];\n}\n\n/** Mock interface for HTML Options */\ninterface HTMLOption {\n  value: string;\n  selected: boolean;\n}\n\n/** Mock interface for HTMLCollection */\nabstract class HTMLCollection {\n  // TODO(issue/24571): remove '!'.\n  length!: number;\n  abstract item(_: number): HTMLOption;\n}\n\n/**\n * @description\n * The `ControlValueAccessor` for writing multi-select control values and listening to multi-select\n * control changes. The value accessor is used by the `FormControlDirective`, `FormControlName`, and\n * `NgModel` directives.\n *\n * @see `SelectControlValueAccessor`\n *\n * @usageNotes\n *\n * ### Using a multi-select control\n *\n * The follow example shows you how to use a multi-select control with a reactive form.\n *\n * ```ts\n * const countryControl = new FormControl();\n * ```\n *\n * ```\n * <select multiple name=\"countries\" [formControl]=\"countryControl\">\n *   <option *ngFor=\"let country of countries\" [ngValue]=\"country\">\n *     {{ country.name }}\n *   </option>\n * </select>\n * ```\n *\n * ### Customizing option selection\n *\n * To customize the default option comparison algorithm, `<select>` supports `compareWith` input.\n * See the `SelectControlValueAccessor` for usage.\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\n@Directive({\n  selector:\n      'select[multiple][formControlName],select[multiple][formControl],select[multiple][ngModel]',\n  host: {'(change)': 'onChange($event.target)', '(blur)': 'onTouched()'},\n  providers: [SELECT_MULTIPLE_VALUE_ACCESSOR]\n})\nexport class SelectMultipleControlValueAccessor extends BuiltInControlValueAccessor implements\n    ControlValueAccessor {\n  /**\n   * The current value.\n   * @nodoc\n   */\n  value: any;\n\n  /** @internal */\n  _optionMap: Map<string, ɵNgSelectMultipleOption> = new Map<string, ɵNgSelectMultipleOption>();\n\n  /** @internal */\n  _idCounter: number = 0;\n\n  /**\n   * @description\n   * Tracks the option comparison algorithm for tracking identities when\n   * checking for changes.\n   */\n  @Input()\n  set compareWith(fn: (o1: any, o2: any) => boolean) {\n    if (typeof fn !== 'function' && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n      throw new RuntimeError(\n          RuntimeErrorCode.COMPAREWITH_NOT_A_FN,\n          `compareWith must be a function, but received ${JSON.stringify(fn)}`);\n    }\n    this._compareWith = fn;\n  }\n\n  private _compareWith: (o1: any, o2: any) => boolean = Object.is;\n\n  /**\n   * Sets the \"value\" property on one or of more of the select's options.\n   * @nodoc\n   */\n  writeValue(value: any): void {\n    this.value = value;\n    let optionSelectedStateSetter: (opt: ɵNgSelectMultipleOption, o: any) => void;\n    if (Array.isArray(value)) {\n      // convert values to ids\n      const ids = value.map((v) => this._getOptionId(v));\n      optionSelectedStateSetter = (opt, o) => {\n        opt._setSelected(ids.indexOf(o.toString()) > -1);\n      };\n    } else {\n      optionSelectedStateSetter = (opt, o) => {\n        opt._setSelected(false);\n      };\n    }\n    this._optionMap.forEach(optionSelectedStateSetter);\n  }\n\n  /**\n   * Registers a function called when the control value changes\n   * and writes an array of the selected options.\n   * @nodoc\n   */\n  override registerOnChange(fn: (value: any) => any): void {\n    this.onChange = (element: HTMLSelectElement) => {\n      const selected: Array<any> = [];\n      const selectedOptions = element.selectedOptions;\n      if (selectedOptions !== undefined) {\n        const options = selectedOptions;\n        for (let i = 0; i < options.length; i++) {\n          const opt = options[i];\n          const val = this._getOptionValue(opt.value);\n          selected.push(val);\n        }\n      }\n      // Degrade to use `options` when `selectedOptions` property is not available.\n      // Note: the `selectedOptions` is available in all supported browsers, but the Domino lib\n      // doesn't have it currently, see https://github.com/fgnass/domino/issues/177.\n      else {\n        const options = element.options;\n        for (let i = 0; i < options.length; i++) {\n          const opt = options[i];\n          if (opt.selected) {\n            const val = this._getOptionValue(opt.value);\n            selected.push(val);\n          }\n        }\n      }\n      this.value = selected;\n      fn(selected);\n    };\n  }\n\n  /** @internal */\n  _registerOption(value: ɵNgSelectMultipleOption): string {\n    const id: string = (this._idCounter++).toString();\n    this._optionMap.set(id, value);\n    return id;\n  }\n\n  /** @internal */\n  _getOptionId(value: any): string|null {\n    for (const id of Array.from(this._optionMap.keys())) {\n      if (this._compareWith(this._optionMap.get(id)!._value, value)) return id;\n    }\n    return null;\n  }\n\n  /** @internal */\n  _getOptionValue(valueString: string): any {\n    const id: string = _extractId(valueString);\n    return this._optionMap.has(id) ? this._optionMap.get(id)!._value : valueString;\n  }\n}\n\n/**\n * @description\n * Marks `<option>` as dynamic, so Angular can be notified when options change.\n *\n * @see `SelectMultipleControlValueAccessor`\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\n@Directive({selector: 'option'})\nexport class ɵNgSelectMultipleOption implements OnDestroy {\n  // TODO(issue/24571): remove '!'.\n  id!: string;\n  /** @internal */\n  _value: any;\n\n  constructor(\n      private _element: ElementRef, private _renderer: Renderer2,\n      @Optional() @Host() private _select: SelectMultipleControlValueAccessor) {\n    if (this._select) {\n      this.id = this._select._registerOption(this);\n    }\n  }\n\n  /**\n   * @description\n   * Tracks the value bound to the option element. Unlike the value binding,\n   * ngValue supports binding to objects.\n   */\n  @Input('ngValue')\n  set ngValue(value: any) {\n    if (this._select == null) return;\n    this._value = value;\n    this._setElementValue(_buildValueString(this.id, value));\n    this._select.writeValue(this._select.value);\n  }\n\n  /**\n   * @description\n   * Tracks simple string values bound to the option element.\n   * For objects, use the `ngValue` input binding.\n   */\n  @Input('value')\n  set value(value: any) {\n    if (this._select) {\n      this._value = value;\n      this._setElementValue(_buildValueString(this.id, value));\n      this._select.writeValue(this._select.value);\n    } else {\n      this._setElementValue(value);\n    }\n  }\n\n  /** @internal */\n  _setElementValue(value: string): void {\n    this._renderer.setProperty(this._element.nativeElement, 'value', value);\n  }\n\n  /** @internal */\n  _setSelected(selected: boolean) {\n    this._renderer.setProperty(this._element.nativeElement, 'selected', selected);\n  }\n\n  /** @nodoc */\n  ngOnDestroy(): void {\n    if (this._select) {\n      this._select._optionMap.delete(this.id);\n      this._select.writeValue(this._select.value);\n    }\n  }\n}\n\nexport {ɵNgSelectMultipleOption as NgSelectMultipleOption};\n"]}