ngx-bootstrap
Version:
Angular Bootstrap
188 lines • 19.3 kB
JavaScript
import { ChangeDetectorRef, Directive, ElementRef, forwardRef, HostBinding, HostListener, Inject, Input, Optional, Renderer2 } from '@angular/core';
import { NG_VALUE_ACCESSOR } from '@angular/forms';
import { ButtonRadioGroupDirective } from './button-radio-group.directive';
import * as i0 from "@angular/core";
import * as i1 from "./button-radio-group.directive";
export const RADIO_CONTROL_VALUE_ACCESSOR = {
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => ButtonRadioDirective),
multi: true
};
/**
* Create radio buttons or groups of buttons.
* A value of a selected button is bound to a variable specified via ngModel.
*/
export class ButtonRadioDirective {
/** Current value of radio component or group */
get value() {
return this.group ? this.group.value : this._value;
}
set value(value) {
if (this.group) {
this.group.value = value;
return;
}
this._value = value;
this._onChange(value);
}
/** If `true` — radio button is disabled */
get disabled() {
return this._disabled;
}
set disabled(disabled) {
this.setDisabledState(disabled);
}
get controlOrGroupDisabled() {
return this.disabled || (this.group && this.group.disabled) ? true : undefined;
}
get hasDisabledClass() {
// Although the radio is disabled the active radio should still stand out.
// The disabled class will prevent this so don't add it on the active radio
return this.controlOrGroupDisabled && !this.isActive;
}
get isActive() {
return this.btnRadio === this.value;
}
get tabindex() {
if (this.controlOrGroupDisabled) {
// Disabled radio buttons should not receive focus
return undefined;
}
else if (this.isActive || this.group == null) {
return 0;
}
else {
return -1;
}
}
get hasFocus() {
return this._hasFocus;
}
constructor(el, cdr, renderer, group) {
this.el = el;
this.cdr = cdr;
this.renderer = renderer;
this.group = group;
this.onChange = Function.prototype;
this.onTouched = Function.prototype;
/** If `true` — radio button can be unchecked */
this.uncheckable = false;
this.role = 'radio';
this._disabled = false;
this._hasFocus = false;
}
toggleIfAllowed() {
if (!this.canToggle()) {
return;
}
if (this.uncheckable && this.btnRadio === this.value) {
this.value = undefined;
}
else {
this.value = this.btnRadio;
}
}
onSpacePressed(event) {
this.toggleIfAllowed();
event.preventDefault();
}
focus() {
this.el.nativeElement.focus();
}
onFocus() {
this._hasFocus = true;
}
onBlur() {
this._hasFocus = false;
this.onTouched();
}
canToggle() {
return !this.controlOrGroupDisabled && (this.uncheckable || this.btnRadio !== this.value);
}
ngOnChanges(changes) {
if ('uncheckable' in changes) {
this.uncheckable = this.uncheckable !== false && typeof this.uncheckable !== 'undefined';
}
}
_onChange(value) {
if (this.group) {
this.group.value = value;
return;
}
this.onTouched();
this.onChange(value);
}
// ControlValueAccessor
// model -> view
writeValue(value) {
this.value = value;
this.cdr.markForCheck();
}
registerOnChange(fn) {
this.onChange = fn;
}
registerOnTouched(fn) {
this.onTouched = fn;
}
setDisabledState(disabled) {
this._disabled = disabled;
if (disabled) {
this.renderer.setAttribute(this.el.nativeElement, 'disabled', 'disabled');
return;
}
this.renderer.removeAttribute(this.el.nativeElement, 'disabled');
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.1.4", ngImport: i0, type: ButtonRadioDirective, deps: [{ token: i0.ElementRef }, { token: i0.ChangeDetectorRef }, { token: i0.Renderer2 }, { token: forwardRef(() => ButtonRadioGroupDirective), optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }
static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.1.4", type: ButtonRadioDirective, selector: "[btnRadio]", inputs: { btnRadio: "btnRadio", uncheckable: "uncheckable", value: "value", disabled: "disabled" }, host: { listeners: { "click": "toggleIfAllowed()", "keydown.space": "onSpacePressed($event)", "focus": "onFocus()", "blur": "onBlur()" }, properties: { "attr.aria-disabled": "this.controlOrGroupDisabled", "class.disabled": "this.hasDisabledClass", "class.active": "this.isActive", "attr.aria-checked": "this.isActive", "attr.role": "this.role", "attr.tabindex": "this.tabindex" } }, providers: [RADIO_CONTROL_VALUE_ACCESSOR], usesOnChanges: true, ngImport: i0 }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.1.4", ngImport: i0, type: ButtonRadioDirective, decorators: [{
type: Directive,
args: [{
selector: '[btnRadio]',
providers: [RADIO_CONTROL_VALUE_ACCESSOR]
}]
}], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.ChangeDetectorRef }, { type: i0.Renderer2 }, { type: i1.ButtonRadioGroupDirective, decorators: [{
type: Optional
}, {
type: Inject,
args: [forwardRef(() => ButtonRadioGroupDirective)]
}] }]; }, propDecorators: { btnRadio: [{
type: Input
}], uncheckable: [{
type: Input
}], value: [{
type: Input
}], disabled: [{
type: Input
}], controlOrGroupDisabled: [{
type: HostBinding,
args: ['attr.aria-disabled']
}], hasDisabledClass: [{
type: HostBinding,
args: ['class.disabled']
}], isActive: [{
type: HostBinding,
args: ['class.active']
}, {
type: HostBinding,
args: ['attr.aria-checked']
}], role: [{
type: HostBinding,
args: ['attr.role']
}], tabindex: [{
type: HostBinding,
args: ['attr.tabindex']
}], toggleIfAllowed: [{
type: HostListener,
args: ['click']
}], onSpacePressed: [{
type: HostListener,
args: ['keydown.space', ['$event']]
}], onFocus: [{
type: HostListener,
args: ['focus']
}], onBlur: [{
type: HostListener,
args: ['blur']
}] } });
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{\n  ChangeDetectorRef,\n  Directive,\n  ElementRef,\n  forwardRef,\n  HostBinding,\n  HostListener,\n  Inject,\n  Input,\n  OnChanges,\n  Optional,\n  Provider,\n  Renderer2,\n  SimpleChanges\n} from '@angular/core';\nimport { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';\nimport { ButtonRadioGroupDirective } from './button-radio-group.directive';\n\nexport const RADIO_CONTROL_VALUE_ACCESSOR: Provider = {\n  provide: NG_VALUE_ACCESSOR,\n  useExisting: forwardRef(() => ButtonRadioDirective),\n  multi: true\n};\n\n/**\n * Create radio buttons or groups of buttons.\n * A value of a selected button is bound to a variable specified via ngModel.\n */\n@Directive({\n  selector: '[btnRadio]',\n  providers: [RADIO_CONTROL_VALUE_ACCESSOR]\n})\nexport class ButtonRadioDirective implements ControlValueAccessor, OnChanges {\n  onChange = Function.prototype;\n  onTouched = Function.prototype;\n\n  /** Radio button value, will be set to `ngModel` */\n  @Input() btnRadio?: unknown;\n  /** If `true` — radio button can be unchecked */\n  @Input() uncheckable = false;\n  /** Current value of radio component or group */\n  @Input()\n  get value() {\n    return this.group ? this.group.value : this._value;\n  }\n\n  set value(value: unknown | undefined) {\n    if (this.group) {\n      this.group.value = value;\n\n      return;\n    }\n    this._value = value;\n    this._onChange(value);\n  }\n  /** If `true` — radio button is disabled */\n  @Input()\n  get disabled(): boolean {\n    return this._disabled;\n  }\n\n  set disabled(disabled: boolean) {\n    this.setDisabledState(disabled);\n  }\n\n  @HostBinding('attr.aria-disabled')\n  get controlOrGroupDisabled() {\n    return this.disabled || (this.group && this.group.disabled) ? true : undefined;\n  }\n\n  @HostBinding('class.disabled')\n  get hasDisabledClass() {\n    // Although the radio is disabled the active radio should still stand out.\n    // The disabled class will prevent this so don't add it on the active radio\n    return this.controlOrGroupDisabled && !this.isActive;\n  }\n\n  @HostBinding('class.active')\n  @HostBinding('attr.aria-checked')\n  get isActive(): boolean {\n    return this.btnRadio === this.value;\n  }\n\n  @HostBinding('attr.role') readonly role: string = 'radio';\n\n  @HostBinding('attr.tabindex')\n  get tabindex(): undefined | number {\n    if (this.controlOrGroupDisabled) {\n      // Disabled radio buttons should not receive focus\n      return undefined;\n    } else if (this.isActive || this.group == null) {\n      return 0;\n    } else {\n      return -1;\n    }\n  }\n\n  get hasFocus(): boolean {\n    return this._hasFocus;\n  }\n\n  private _value?: unknown;\n  private _disabled = false;\n  private _hasFocus = false;\n\n  constructor(\n    private el: ElementRef,\n    private cdr: ChangeDetectorRef,\n    private renderer: Renderer2,\n    @Optional()\n    @Inject(forwardRef(() => ButtonRadioGroupDirective))\n    private group: ButtonRadioGroupDirective\n  ) {}\n\n  @HostListener('click')\n  toggleIfAllowed(): void {\n    if (!this.canToggle()) {\n      return;\n    }\n\n    if (this.uncheckable && this.btnRadio === this.value) {\n      this.value = undefined;\n    } else {\n      this.value = this.btnRadio;\n    }\n  }\n\n  @HostListener('keydown.space', ['$event'])\n  onSpacePressed(event: KeyboardEvent) {\n    this.toggleIfAllowed();\n    event.preventDefault();\n  }\n\n  focus() {\n    this.el.nativeElement.focus();\n  }\n\n  @HostListener('focus')\n  onFocus() {\n    this._hasFocus = true;\n  }\n\n  @HostListener('blur')\n  onBlur() {\n    this._hasFocus = false;\n    this.onTouched();\n  }\n\n  canToggle(): boolean {\n    return !this.controlOrGroupDisabled && (this.uncheckable || this.btnRadio !== this.value);\n  }\n\n  ngOnChanges(changes: SimpleChanges) {\n    if ('uncheckable' in changes) {\n      this.uncheckable = this.uncheckable !== false && typeof this.uncheckable !== 'undefined';\n    }\n  }\n\n  _onChange(value?: unknown): void {\n    if (this.group) {\n      this.group.value = value;\n\n      return;\n    }\n    this.onTouched();\n    this.onChange(value);\n  }\n\n  // ControlValueAccessor\n  // model -> view\n  writeValue(value: unknown): void {\n    this.value = value;\n    this.cdr.markForCheck();\n  }\n\n  registerOnChange(fn: () => void): void {\n    this.onChange = fn;\n  }\n\n  registerOnTouched(fn: () => void): void {\n    this.onTouched = fn;\n  }\n\n  setDisabledState(disabled: boolean): void {\n    this._disabled = disabled;\n    if (disabled) {\n      this.renderer.setAttribute(this.el.nativeElement, 'disabled', 'disabled');\n\n      return;\n    }\n    this.renderer.removeAttribute(this.el.nativeElement, 'disabled');\n  }\n}\n"]}