import { forwardRef, EventEmitter, Component, ChangeDetectionStrategy, ViewEncapsulation, ChangeDetectorRef, Input, Output, NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { NG_VALUE_ACCESSOR } from '@angular/forms';

const TRISTATECHECKBOX_VALUE_ACCESSOR = {
    provide: NG_VALUE_ACCESSOR,
    useExisting: forwardRef(() => TriStateCheckbox),
    multi: true
};
class TriStateCheckbox {
    constructor(cd) {
        this.cd = cd;
        this.onChange = new EventEmitter();
        this.onModelChange = () => { };
        this.onModelTouched = () => { };
    }
    onClick(event, input) {
        if (!this.disabled && !this.readonly) {
            this.toggle(event);
            this.focused = true;
            input.focus();
        }
    }
    onKeydown(event) {
        if (event.keyCode == 32) {
            event.preventDefault();
        }
    }
    onKeyup(event) {
        if (event.keyCode == 32 && !this.readonly) {
            this.toggle(event);
            event.preventDefault();
        }
    }
    toggle(event) {
        if (this.value == null || this.value == undefined)
            this.value = true;
        else if (this.value == true)
            this.value = false;
        else if (this.value == false)
            this.value = null;
        this.onModelChange(this.value);
        this.onChange.emit({
            originalEvent: event,
            value: this.value
        });
    }
    onFocus() {
        this.focused = true;
    }
    onBlur() {
        this.focused = false;
        this.onModelTouched();
    }
    registerOnChange(fn) {
        this.onModelChange = fn;
    }
    registerOnTouched(fn) {
        this.onModelTouched = fn;
    }
    writeValue(value) {
        this.value = value;
        this.cd.markForCheck();
    }
    setDisabledState(disabled) {
        this.disabled = disabled;
        this.cd.markForCheck();
    }
}
TriStateCheckbox.decorators = [
    { type: Component, args: [{
                selector: 'p-triStateCheckbox',
                template: `
        <div [ngStyle]="style" [ngClass]="{'p-checkbox p-component': true,'p-checkbox-disabled': disabled, 'p-checkbox-focused': focused}" [class]="styleClass">
            <div class="p-hidden-accessible">
                <input #input type="text" [attr.id]="inputId" [name]="name" [attr.tabindex]="tabindex" [readonly]="readonly" [disabled]="disabled" (keyup)="onKeyup($event)" (keydown)="onKeydown($event)" (focus)="onFocus()" (blur)="onBlur()" [attr.aria-labelledby]="ariaLabelledBy" inputmode="none">
            </div>
            <div class="p-checkbox-box" (click)="onClick($event,input)"  role="checkbox" [attr.aria-checked]="value === true"
                [ngClass]="{'p-highlight':value!=null,'p-disabled':disabled,'p-focus':focused}">
                <span class="p-checkbox-icon pi" [ngClass]="{'pi-check':value==true,'pi-times':value==false}"></span>
            </div>
        </div>
        <label class="p-checkbox-label" (click)="onClick($event,input)"
               [ngClass]="{'p-checkbox-label-active':value!=null, 'p-disabled':disabled, 'p-checkbox-label-focus':focused}"
               *ngIf="label" [attr.for]="inputId">{{label}}</label>
    `,
                providers: [TRISTATECHECKBOX_VALUE_ACCESSOR],
                changeDetection: ChangeDetectionStrategy.OnPush,
                encapsulation: ViewEncapsulation.None
            },] }
];
TriStateCheckbox.ctorParameters = () => [
    { type: ChangeDetectorRef }
];
TriStateCheckbox.propDecorators = {
    disabled: [{ type: Input }],
    name: [{ type: Input }],
    ariaLabelledBy: [{ type: Input }],
    tabindex: [{ type: Input }],
    inputId: [{ type: Input }],
    style: [{ type: Input }],
    styleClass: [{ type: Input }],
    label: [{ type: Input }],
    readonly: [{ type: Input }],
    onChange: [{ type: Output }]
};
class TriStateCheckboxModule {
}
TriStateCheckboxModule.decorators = [
    { type: NgModule, args: [{
                imports: [CommonModule],
                exports: [TriStateCheckbox],
                declarations: [TriStateCheckbox]
            },] }
];

/**
 * Generated bundle index. Do not edit.
 */

export { TRISTATECHECKBOX_VALUE_ACCESSOR, TriStateCheckbox, TriStateCheckboxModule };
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