import { forwardRef, EventEmitter, Component, ChangeDetectionStrategy, ViewEncapsulation, ElementRef, ChangeDetectorRef, Input, Output, ViewChild, ContentChild, ContentChildren, NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { Header, Footer, PrimeTemplate, SharedModule } from 'primeng/api';
import { DomHandler } from 'primeng/dom';
import { ObjectUtils, FilterUtils } from 'primeng/utils';
import { NG_VALUE_ACCESSOR } from '@angular/forms';
import { RippleModule } from 'primeng/ripple';

const LISTBOX_VALUE_ACCESSOR = {
    provide: NG_VALUE_ACCESSOR,
    useExisting: forwardRef(() => Listbox),
    multi: true
};
class Listbox {
    constructor(el, cd) {
        this.el = el;
        this.cd = cd;
        this.checkbox = false;
        this.filter = false;
        this.filterMode = 'contains';
        this.metaKeySelection = true;
        this.showToggleAll = true;
        this.onChange = new EventEmitter();
        this.onClick = new EventEmitter();
        this.onDblClick = new EventEmitter();
        this.onModelChange = () => { };
        this.onModelTouched = () => { };
        this.disabledSelectedOptions = [];
    }
    get options() {
        return this._options;
    }
    set options(val) {
        let opts = this.optionLabel ? ObjectUtils.generateSelectItems(val, this.optionLabel) : val;
        this._options = opts;
    }
    get filterValue() {
        return this._filterValue;
    }
    set filterValue(val) {
        this._filterValue = val;
    }
    ngAfterContentInit() {
        this.templates.forEach((item) => {
            switch (item.getType()) {
                case 'item':
                    this.itemTemplate = item.template;
                    break;
                case 'header':
                    this.headerTemplate = item.template;
                    break;
                case 'footer':
                    this.footerTemplate = item.template;
                    break;
                default:
                    this.itemTemplate = item.template;
                    break;
            }
        });
    }
    writeValue(value) {
        this.value = value;
        this.setDisabledSelectedOptions();
        this.cd.markForCheck();
    }
    registerOnChange(fn) {
        this.onModelChange = fn;
    }
    registerOnTouched(fn) {
        this.onModelTouched = fn;
    }
    setDisabledState(val) {
        this.disabled = val;
        this.cd.markForCheck();
    }
    onOptionClick(event, option) {
        if (this.disabled || option.disabled || this.readonly) {
            return;
        }
        if (this.multiple) {
            if (this.checkbox)
                this.onOptionClickCheckbox(event, option);
            else
                this.onOptionClickMultiple(event, option);
        }
        else {
            this.onOptionClickSingle(event, option);
        }
        this.onClick.emit({
            originalEvent: event,
            option: option,
            value: this.value
        });
        this.optionTouched = false;
    }
    onOptionTouchEnd(event, option) {
        if (this.disabled || option.disabled || this.readonly) {
            return;
        }
        this.optionTouched = true;
    }
    onOptionDoubleClick(event, option) {
        if (this.disabled || option.disabled || this.readonly) {
            return;
        }
        this.onDblClick.emit({
            originalEvent: event,
            option: option,
            value: this.value
        });
    }
    onOptionClickSingle(event, option) {
        let selected = this.isSelected(option);
        let valueChanged = false;
        let metaSelection = this.optionTouched ? false : this.metaKeySelection;
        if (metaSelection) {
            let metaKey = (event.metaKey || event.ctrlKey);
            if (selected) {
                if (metaKey) {
                    this.value = null;
                    valueChanged = true;
                }
            }
            else {
                this.value = option.value;
                valueChanged = true;
            }
        }
        else {
            this.value = selected ? null : option.value;
            valueChanged = true;
        }
        if (valueChanged) {
            this.onModelChange(this.value);
            this.onChange.emit({
                originalEvent: event,
                value: this.value
            });
        }
    }
    onOptionClickMultiple(event, option) {
        let selected = this.isSelected(option);
        let valueChanged = false;
        let metaSelection = this.optionTouched ? false : this.metaKeySelection;
        if (metaSelection) {
            let metaKey = (event.metaKey || event.ctrlKey);
            if (selected) {
                if (metaKey) {
                    this.removeOption(option);
                }
                else {
                    this.value = [option.value];
                }
                valueChanged = true;
            }
            else {
                this.value = (metaKey) ? this.value || [] : [];
                this.value = [...this.value, option.value];
                valueChanged = true;
            }
        }
        else {
            if (selected) {
                this.removeOption(option);
            }
            else {
                this.value = [...this.value || [], option.value];
            }
            valueChanged = true;
        }
        if (valueChanged) {
            this.onModelChange(this.value);
            this.onChange.emit({
                originalEvent: event,
                value: this.value
            });
        }
    }
    onOptionClickCheckbox(event, option) {
        if (this.disabled || this.readonly) {
            return;
        }
        let selected = this.isSelected(option);
        if (selected) {
            this.removeOption(option);
        }
        else {
            this.value = this.value ? this.value : [];
            this.value = [...this.value, option.value];
        }
        this.onModelChange(this.value);
        this.onChange.emit({
            originalEvent: event,
            value: this.value
        });
    }
    removeOption(option) {
        this.value = this.value.filter(val => !ObjectUtils.equals(val, option.value, this.dataKey));
    }
    isSelected(option) {
        let selected = false;
        if (this.multiple) {
            if (this.value) {
                for (let val of this.value) {
                    if (ObjectUtils.equals(val, option.value, this.dataKey)) {
                        selected = true;
                        break;
                    }
                }
            }
        }
        else {
            selected = ObjectUtils.equals(this.value, option.value, this.dataKey);
        }
        return selected;
    }
    get allChecked() {
        if (this.filterValue) {
            return this.allFilteredSelected();
        }
        else {
            let optionCount = this.getEnabledOptionCount();
            let disabledSelectedOptionCount = this.disabledSelectedOptions.length;
            return this.value && this.options && (this.value.length > 0 && this.value.length == optionCount + disabledSelectedOptionCount);
        }
    }
    getEnabledOptionCount() {
        if (this.options) {
            let count = 0;
            for (let opt of this.options) {
                if (!opt.disabled) {
                    count++;
                }
            }
            return count;
        }
        else {
            return 0;
        }
    }
    allFilteredSelected() {
        let allSelected;
        let options = this.filterValue ? this.getFilteredOptions() : this.options;
        if (this.value && options && options.length) {
            allSelected = true;
            for (let opt of this.options) {
                if (this.isItemVisible(opt)) {
                    if (!this.isSelected(opt)) {
                        allSelected = false;
                        break;
                    }
                }
            }
        }
        return allSelected;
    }
    onFilter(event) {
        this._filterValue = event.target.value;
    }
    toggleAll(event) {
        if (this.disabled || this.readonly || !this.options || this.options.length === 0) {
            return;
        }
        if (this.allChecked) {
            if (this.disabledSelectedOptions && this.disabledSelectedOptions.length > 0) {
                let value = [];
                value = [...this.disabledSelectedOptions];
                this.value = value;
            }
            else {
                this.value = [];
            }
        }
        else {
            if (this.options) {
                this.value = [];
                if (this.disabledSelectedOptions && this.disabledSelectedOptions.length > 0) {
                    this.value = [...this.disabledSelectedOptions];
                }
                for (let i = 0; i < this.options.length; i++) {
                    let opt = this.options[i];
                    if (this.isItemVisible(opt) && !opt.disabled) {
                        this.value.push(opt.value);
                    }
                }
            }
        }
        this.onModelChange(this.value);
        this.onChange.emit({ originalEvent: event, value: this.value });
        event.preventDefault();
    }
    isItemVisible(option) {
        if (this.filterValue) {
            let visible;
            if (this.filterMode) {
                visible = FilterUtils[this.filterMode](option.label, this.filterValue, this.filterLocale);
            }
            else {
                visible = true;
            }
            return visible;
        }
        else {
            return true;
        }
    }
    onOptionKeyDown(event, option) {
        if (this.readonly) {
            return;
        }
        let item = event.currentTarget;
        switch (event.which) {
            //down
            case 40:
                var nextItem = this.findNextItem(item);
                if (nextItem) {
                    nextItem.focus();
                }
                event.preventDefault();
                break;
            //up
            case 38:
                var prevItem = this.findPrevItem(item);
                if (prevItem) {
                    prevItem.focus();
                }
                event.preventDefault();
                break;
            //enter
            case 13:
                this.onOptionClick(event, option);
                event.preventDefault();
                break;
        }
    }
    findNextItem(item) {
        let nextItem = item.nextElementSibling;
        if (nextItem)
            return DomHandler.hasClass(nextItem, 'p-disabled') || DomHandler.isHidden(nextItem) ? this.findNextItem(nextItem) : nextItem;
        else
            return null;
    }
    findPrevItem(item) {
        let prevItem = item.previousElementSibling;
        if (prevItem)
            return DomHandler.hasClass(prevItem, 'p-disabled') || DomHandler.isHidden(prevItem) ? this.findPrevItem(prevItem) : prevItem;
        else
            return null;
    }
    getFilteredOptions() {
        let filteredOptions = [];
        if (this.filterValue) {
            for (let i = 0; i < this.options.length; i++) {
                let opt = this.options[i];
                if (this.isItemVisible(opt) && !opt.disabled) {
                    filteredOptions.push(opt);
                }
            }
            return filteredOptions;
        }
        else {
            return this.options;
        }
    }
    onHeaderCheckboxFocus() {
        this.headerCheckboxFocus = true;
    }
    onHeaderCheckboxBlur() {
        this.headerCheckboxFocus = false;
    }
    setDisabledSelectedOptions() {
        if (this.options) {
            this.disabledSelectedOptions = [];
            if (this.value) {
                for (let opt of this.options) {
                    if (opt.disabled && this.isSelected(opt)) {
                        this.disabledSelectedOptions.push(opt.value);
                    }
                }
            }
        }
    }
}
Listbox.decorators = [
    { type: Component, args: [{
                selector: 'p-listbox',
                template: `
    <div [ngClass]="{'p-listbox p-component': true, 'p-disabled': disabled}" [ngStyle]="style" [class]="styleClass">
      <div class="p-listbox-header" *ngIf="headerFacet || headerTemplate">
        <ng-content select="p-header"></ng-content>
        <ng-container *ngTemplateOutlet="headerTemplate"></ng-container>
      </div>
      <div class="p-listbox-header" *ngIf="(checkbox && multiple && showToggleAll) || filter">
        <div class="p-checkbox p-component" *ngIf="checkbox && multiple && showToggleAll" [ngClass]="{'p-checkbox-disabled': disabled}">
          <div class="p-hidden-accessible">
            <input type="checkbox" readonly="readonly" [checked]="allChecked" (focus)="onHeaderCheckboxFocus()" (blur)="onHeaderCheckboxBlur()" (keydown.space)="toggleAll($event)" [attr.disabled]="disabled">
          </div>
          <div #headerchkbox class="p-checkbox-box" [ngClass]="{'p-highlight': allChecked, 'p-focus': headerCheckboxFocus}" (click)="toggleAll($event)">
            <span class="p-checkbox-icon" [ngClass]="{'pi pi-check':allChecked}"></span>
          </div>
        </div>
        <div class="p-listbox-filter-container" *ngIf="filter">
          <input type="text" [value]="filterValue||''" (input)="onFilter($event)" class="p-listbox-filter p-inputtext p-component" [disabled]="disabled" [attr.placeholder]="filterPlaceHolder" [attr.aria-label]="ariaFilterLabel">
          <span class="p-listbox-filter-icon pi pi-search"></span>
        </div>
      </div>
      <div [ngClass]="'p-listbox-list-wrapper'" [ngStyle]="listStyle" [class]="listStyleClass">
        <ul class="p-listbox-list" role="listbox" aria-multiselectable="multiple">
          <li *ngFor="let option of options; let i = index;" [style.display]="isItemVisible(option) ? 'flex' : 'none'" [attr.tabindex]="disabled || option.disabled ? null : '0'" pRipple
              [ngClass]="{'p-listbox-item':true,'p-highlight':isSelected(option), 'p-disabled': option.disabled}" role="option" [attr.aria-label]="option.label"
              [attr.aria-selected]="isSelected(option)" (click)="onOptionClick($event,option)" (dblclick)="onOptionDoubleClick($event,option)" (touchend)="onOptionTouchEnd($event,option)" (keydown)="onOptionKeyDown($event,option)">
            <div class="p-checkbox p-component" *ngIf="checkbox && multiple" [ngClass]="{'p-checkbox-disabled': disabled || option.disabled}">
              <div class="p-checkbox-box" [ngClass]="{'p-highlight':isSelected(option)}">
                <span class="p-checkbox-icon" [ngClass]="{'pi pi-check':isSelected(option)}"></span>
              </div>
            </div>
            <span *ngIf="!itemTemplate">{{option.label}}</span>
            <ng-container *ngTemplateOutlet="itemTemplate; context: {$implicit: option, index: i}"></ng-container>
          </li>
        </ul>
      </div>
      <div class="p-listbox-footer" *ngIf="footerFacet || footerTemplate">
        <ng-content select="p-footer"></ng-content>
        <ng-container *ngTemplateOutlet="footerTemplate"></ng-container>
      </div>
    </div>
  `,
                providers: [LISTBOX_VALUE_ACCESSOR],
                changeDetection: ChangeDetectionStrategy.OnPush,
                encapsulation: ViewEncapsulation.None,
                styles: [".p-listbox-list-wrapper{overflow:auto}.p-listbox-list{list-style-type:none;margin:0;padding:0}.p-listbox-item{cursor:pointer;overflow:hidden;position:relative}.p-listbox-header,.p-listbox-item{-ms-flex-align:center;align-items:center;display:-ms-flexbox;display:flex}.p-listbox-filter-container{-ms-flex:1 1 auto;flex:1 1 auto;position:relative}.p-listbox-filter-icon{margin-top:-.5rem;position:absolute;top:50%}.p-listbox-filter{width:100%}"]
            },] }
];
Listbox.ctorParameters = () => [
    { type: ElementRef },
    { type: ChangeDetectorRef }
];
Listbox.propDecorators = {
    multiple: [{ type: Input }],
    style: [{ type: Input }],
    styleClass: [{ type: Input }],
    listStyle: [{ type: Input }],
    listStyleClass: [{ type: Input }],
    readonly: [{ type: Input }],
    disabled: [{ type: Input }],
    checkbox: [{ type: Input }],
    filter: [{ type: Input }],
    filterMode: [{ type: Input }],
    filterLocale: [{ type: Input }],
    metaKeySelection: [{ type: Input }],
    dataKey: [{ type: Input }],
    showToggleAll: [{ type: Input }],
    optionLabel: [{ type: Input }],
    ariaFilterLabel: [{ type: Input }],
    filterPlaceHolder: [{ type: Input }],
    onChange: [{ type: Output }],
    onClick: [{ type: Output }],
    onDblClick: [{ type: Output }],
    headerCheckboxViewChild: [{ type: ViewChild, args: ['headerchkbox',] }],
    headerFacet: [{ type: ContentChild, args: [Header,] }],
    footerFacet: [{ type: ContentChild, args: [Footer,] }],
    templates: [{ type: ContentChildren, args: [PrimeTemplate,] }],
    options: [{ type: Input }],
    filterValue: [{ type: Input }]
};
class ListboxModule {
}
ListboxModule.decorators = [
    { type: NgModule, args: [{
                imports: [CommonModule, SharedModule, RippleModule],
                exports: [Listbox, SharedModule],
                declarations: [Listbox]
            },] }
];

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

export { LISTBOX_VALUE_ACCESSOR, Listbox, ListboxModule };
//# sourceMappingURL=primeng-listbox.js.map