ng2-bootstrap/buttons/button-checkbox.directive.js

import { Directive, HostBinding, HostListener, Input, forwardRef } from '@angular/core';
import { NG_VALUE_ACCESSOR } from '@angular/forms';
// TODO: config: activeClass - Class to apply to the checked buttons
export var CHECKBOX_CONTROL_VALUE_ACCESSOR = {
    provide: NG_VALUE_ACCESSOR,
    useExisting: forwardRef(function () { return ButtonCheckboxDirective; }),
    multi: true
};
/**
 * Add checkbox functionality to any element
 */
export var ButtonCheckboxDirective = (function () {
    function ButtonCheckboxDirective() {
        /** Truthy value, will be set to ngModel */
        this.btnCheckboxTrue = true;
        /** Falsy value, will be set to ngModel */
        this.btnCheckboxFalse = false;
        this.state = false;
        this.onChange = Function.prototype;
        this.onTouched = Function.prototype;
    }
    // view -> model
    ButtonCheckboxDirective.prototype.onClick = function () {
        if (this.isDisabled) {
            return;
        }
        this.toggle(!this.state);
        this.onChange(this.value);
    };
    ButtonCheckboxDirective.prototype.ngOnInit = function () {
        this.toggle(this.trueValue === this.value);
    };
    Object.defineProperty(ButtonCheckboxDirective.prototype, "trueValue", {
        get: function () {
            return typeof this.btnCheckboxTrue !== 'undefined'
                ? this.btnCheckboxTrue
                : true;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(ButtonCheckboxDirective.prototype, "falseValue", {
        get: function () {
            return typeof this.btnCheckboxFalse !== 'undefined'
                ? this.btnCheckboxFalse
                : false;
        },
        enumerable: true,
        configurable: true
    });
    ButtonCheckboxDirective.prototype.toggle = function (state) {
        this.state = state;
        this.value = this.state ? this.trueValue : this.falseValue;
    };
    // ControlValueAccessor
    // model -> view
    ButtonCheckboxDirective.prototype.writeValue = function (value) {
        this.state = this.trueValue === value;
        this.value = value ? this.trueValue : this.falseValue;
    };
    ButtonCheckboxDirective.prototype.setDisabledState = function (isDisabled) {
        this.isDisabled = isDisabled;
    };
    ButtonCheckboxDirective.prototype.registerOnChange = function (fn) {
        this.onChange = fn;
    };
    ButtonCheckboxDirective.prototype.registerOnTouched = function (fn) {
        this.onTouched = fn;
    };
    ButtonCheckboxDirective.decorators = [
        { type: Directive, args: [{ selector: '[btnCheckbox]', providers: [CHECKBOX_CONTROL_VALUE_ACCESSOR] },] },
    ];
    /** @nocollapse */
    ButtonCheckboxDirective.ctorParameters = function () { return []; };
    ButtonCheckboxDirective.propDecorators = {
        'btnCheckboxTrue': [{ type: Input },],
        'btnCheckboxFalse': [{ type: Input },],
        'state': [{ type: HostBinding, args: ['class.active',] },],
        'onClick': [{ type: HostListener, args: ['click',] },],
    };
    return ButtonCheckboxDirective;
}());
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