primeng
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(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/cdk/scrolling'), require('@angular/core'), require('@angular/animations'), require('@angular/common'), require('primeng/api'), require('primeng/dom'), require('primeng/utils'), require('@angular/forms'), require('primeng/tooltip'), require('primeng/ripple')) :
typeof define === 'function' && define.amd ? define('primeng/dropdown', ['exports', '@angular/cdk/scrolling', '@angular/core', '@angular/animations', '@angular/common', 'primeng/api', 'primeng/dom', 'primeng/utils', '@angular/forms', 'primeng/tooltip', 'primeng/ripple'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.primeng = global.primeng || {}, global.primeng.dropdown = {}), global.ng.cdk.scrolling, global.ng.core, global.ng.animations, global.ng.common, global.primeng.api, global.primeng.dom, global.primeng.utils, global.ng.forms, global.primeng.tooltip, global.primeng.ripple));
}(this, (function (exports, i4, i0, animations, i2, i3, dom, utils, forms, i5, i1) { 'use strict';
function _interopNamespace(e) {
if (e && e.__esModule) return e;
var n = Object.create(null);
if (e) {
Object.keys(e).forEach(function (k) {
if (k !== 'default') {
var d = Object.getOwnPropertyDescriptor(e, k);
Object.defineProperty(n, k, d.get ? d : {
enumerable: true,
get: function () {
return e[k];
}
});
}
});
}
n['default'] = e;
return Object.freeze(n);
}
var i4__namespace = /*#__PURE__*/_interopNamespace(i4);
var i0__namespace = /*#__PURE__*/_interopNamespace(i0);
var i2__namespace = /*#__PURE__*/_interopNamespace(i2);
var i3__namespace = /*#__PURE__*/_interopNamespace(i3);
var i5__namespace = /*#__PURE__*/_interopNamespace(i5);
var i1__namespace = /*#__PURE__*/_interopNamespace(i1);
/*! *****************************************************************************
Copyright (c) Microsoft Corporation.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */
/* global Reflect, Promise */
var extendStatics = function (d, b) {
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b)
if (Object.prototype.hasOwnProperty.call(b, p))
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function __exportStar(m, o) {
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function __makeTemplateObject(cooked, raw) {
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else {
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}
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;
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}) : function (o, v) {
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};
function __importStar(mod) {
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var result = {};
if (mod != null)
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if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k))
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__setModuleDefault(result, mod);
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}
function __importDefault(mod) {
return (mod && mod.__esModule) ? mod : { default: mod };
}
function __classPrivateFieldGet(receiver, state, kind, f) {
if (kind === "a" && !f)
throw new TypeError("Private accessor was defined without a getter");
if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver))
throw new TypeError("Cannot read private member from an object whose class did not declare it");
return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
}
function __classPrivateFieldSet(receiver, state, value, kind, f) {
if (kind === "m")
throw new TypeError("Private method is not writable");
if (kind === "a" && !f)
throw new TypeError("Private accessor was defined without a setter");
if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver))
throw new TypeError("Cannot write private member to an object whose class did not declare it");
return (kind === "a" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;
}
var DROPDOWN_VALUE_ACCESSOR = {
provide: forms.NG_VALUE_ACCESSOR,
useExisting: i0.forwardRef(function () { return Dropdown; }),
multi: true
};
var DropdownItem = /** @class */ (function () {
function DropdownItem() {
this.onClick = new i0.EventEmitter();
}
DropdownItem.prototype.onOptionClick = function (event) {
this.onClick.emit({
originalEvent: event,
option: this.option
});
};
return DropdownItem;
}());
DropdownItem.ɵfac = i0__namespace.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0__namespace, type: DropdownItem, deps: [], target: i0__namespace.ɵɵFactoryTarget.Component });
DropdownItem.ɵcmp = i0__namespace.ɵɵngDeclareComponent({ minVersion: "12.0.0", version: "12.0.4", type: DropdownItem, selector: "p-dropdownItem", inputs: { option: "option", selected: "selected", label: "label", disabled: "disabled", visible: "visible", itemSize: "itemSize", template: "template" }, outputs: { onClick: "onClick" }, ngImport: i0__namespace, template: "\n <li (click)=\"onOptionClick($event)\" role=\"option\" pRipple\n [attr.aria-label]=\"label\" [attr.aria-selected]=\"selected\"\n [ngStyle]=\"{'height': itemSize + 'px'}\"\n [ngClass]=\"{'p-dropdown-item':true, 'p-highlight': selected, 'p-disabled': disabled}\">\n <span *ngIf=\"!template\">{{label||'empty'}}</span>\n <ng-container *ngTemplateOutlet=\"template; context: {$implicit: option}\"></ng-container>\n </li>\n ", isInline: true, directives: [{ type: i1__namespace.Ripple, selector: "[pRipple]" }, { type: i2__namespace.NgStyle, selector: "[ngStyle]", inputs: ["ngStyle"] }, { type: i2__namespace.NgClass, selector: "[ngClass]", inputs: ["class", "ngClass"] }, { type: i2__namespace.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { type: i2__namespace.NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet"] }] });
i0__namespace.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0__namespace, type: DropdownItem, decorators: [{
type: i0.Component,
args: [{
selector: 'p-dropdownItem',
template: "\n <li (click)=\"onOptionClick($event)\" role=\"option\" pRipple\n [attr.aria-label]=\"label\" [attr.aria-selected]=\"selected\"\n [ngStyle]=\"{'height': itemSize + 'px'}\"\n [ngClass]=\"{'p-dropdown-item':true, 'p-highlight': selected, 'p-disabled': disabled}\">\n <span *ngIf=\"!template\">{{label||'empty'}}</span>\n <ng-container *ngTemplateOutlet=\"template; context: {$implicit: option}\"></ng-container>\n </li>\n "
}]
}], propDecorators: { option: [{
type: i0.Input
}], selected: [{
type: i0.Input
}], label: [{
type: i0.Input
}], disabled: [{
type: i0.Input
}], visible: [{
type: i0.Input
}], itemSize: [{
type: i0.Input
}], template: [{
type: i0.Input
}], onClick: [{
type: i0.Output
}] } });
var Dropdown = /** @class */ (function () {
function Dropdown(el, renderer, cd, zone, filterService, config) {
this.el = el;
this.renderer = renderer;
this.cd = cd;
this.zone = zone;
this.filterService = filterService;
this.config = config;
this.scrollHeight = '200px';
this.resetFilterOnHide = false;
this.dropdownIcon = 'pi pi-chevron-down';
this.optionGroupChildren = "items";
this.autoDisplayFirst = true;
this.emptyFilterMessage = '';
this.emptyMessage = '';
this.autoZIndex = true;
this.baseZIndex = 0;
this.showTransitionOptions = '.12s cubic-bezier(0, 0, 0.2, 1)';
this.hideTransitionOptions = '.1s linear';
this.filterMatchMode = "contains";
this.tooltip = '';
this.tooltipPosition = 'right';
this.tooltipPositionStyle = 'absolute';
this.autofocusFilter = true;
this.onChange = new i0.EventEmitter();
this.onFilter = new i0.EventEmitter();
this.onFocus = new i0.EventEmitter();
this.onBlur = new i0.EventEmitter();
this.onClick = new i0.EventEmitter();
this.onShow = new i0.EventEmitter();
this.onHide = new i0.EventEmitter();
this.onModelChange = function () { };
this.onModelTouched = function () { };
this.viewPortOffsetTop = 0;
}
Object.defineProperty(Dropdown.prototype, "disabled", {
get: function () {
return this._disabled;
},
set: function (_disabled) {
if (_disabled) {
this.focused = false;
if (this.overlayVisible)
this.hide();
}
this._disabled = _disabled;
if (!this.cd.destroyed) {
this.cd.detectChanges();
}
},
enumerable: false,
configurable: true
});
;
Dropdown.prototype.ngAfterContentInit = function () {
var _this = this;
this.templates.forEach(function (item) {
switch (item.getType()) {
case 'item':
_this.itemTemplate = item.template;
break;
case 'selectedItem':
_this.selectedItemTemplate = item.template;
break;
case 'header':
_this.headerTemplate = item.template;
break;
case 'footer':
_this.footerTemplate = item.template;
break;
case 'emptyfilter':
_this.emptyFilterTemplate = item.template;
break;
case 'empty':
_this.emptyTemplate = item.template;
break;
case 'group':
_this.groupTemplate = item.template;
break;
default:
_this.itemTemplate = item.template;
break;
}
});
};
Dropdown.prototype.ngOnInit = function () {
this.optionsToDisplay = this.options;
this.updateSelectedOption(null);
};
Object.defineProperty(Dropdown.prototype, "options", {
get: function () {
return this._options;
},
set: function (val) {
this._options = val;
this.optionsToDisplay = this._options;
this.updateSelectedOption(this.value);
this.optionsChanged = true;
if (this._filterValue && this._filterValue.length) {
this.activateFilter();
}
},
enumerable: false,
configurable: true
});
Object.defineProperty(Dropdown.prototype, "filterValue", {
get: function () {
return this._filterValue;
},
set: function (val) {
this._filterValue = val;
this.activateFilter();
},
enumerable: false,
configurable: true
});
Dropdown.prototype.ngAfterViewInit = function () {
if (this.editable) {
this.updateEditableLabel();
}
};
Object.defineProperty(Dropdown.prototype, "label", {
get: function () {
return this.selectedOption ? this.getOptionLabel(this.selectedOption) : null;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Dropdown.prototype, "emptyMessageLabel", {
get: function () {
return this.emptyMessage || this.config.getTranslation(i3.TranslationKeys.EMPTY_MESSAGE);
},
enumerable: false,
configurable: true
});
Object.defineProperty(Dropdown.prototype, "emptyFilterMessageLabel", {
get: function () {
return this.emptyFilterMessage || this.config.getTranslation(i3.TranslationKeys.EMPTY_FILTER_MESSAGE);
},
enumerable: false,
configurable: true
});
Object.defineProperty(Dropdown.prototype, "filled", {
get: function () {
return this.value || this.value != null || this.value != undefined;
},
enumerable: false,
configurable: true
});
Dropdown.prototype.updateEditableLabel = function () {
if (this.editableInputViewChild && this.editableInputViewChild.nativeElement) {
this.editableInputViewChild.nativeElement.value = (this.selectedOption ? this.getOptionLabel(this.selectedOption) : this.value || '');
}
};
Dropdown.prototype.getOptionLabel = function (option) {
return this.optionLabel ? utils.ObjectUtils.resolveFieldData(option, this.optionLabel) : (option.label != undefined ? option.label : option);
};
Dropdown.prototype.getOptionValue = function (option) {
return this.optionValue ? utils.ObjectUtils.resolveFieldData(option, this.optionValue) : (this.optionLabel || option.value === undefined ? option : option.value);
};
Dropdown.prototype.isOptionDisabled = function (option) {
return this.optionDisabled ? utils.ObjectUtils.resolveFieldData(option, this.optionDisabled) : (option.disabled !== undefined ? option.disabled : false);
};
Dropdown.prototype.getOptionGroupLabel = function (optionGroup) {
return this.optionGroupLabel ? utils.ObjectUtils.resolveFieldData(optionGroup, this.optionGroupLabel) : (optionGroup.label != undefined ? optionGroup.label : optionGroup);
};
Dropdown.prototype.getOptionGroupChildren = function (optionGroup) {
return this.optionGroupChildren ? utils.ObjectUtils.resolveFieldData(optionGroup, this.optionGroupChildren) : optionGroup.items;
};
Dropdown.prototype.onItemClick = function (event) {
var _this = this;
var option = event.option;
if (!this.isOptionDisabled(option)) {
this.selectItem(event, option);
this.accessibleViewChild.nativeElement.focus();
}
setTimeout(function () {
_this.hide();
}, 150);
};
Dropdown.prototype.selectItem = function (event, option) {
var _this = this;
if (this.selectedOption != option) {
this.selectedOption = option;
this.value = this.getOptionValue(option);
this.onModelChange(this.value);
this.updateEditableLabel();
this.onChange.emit({
originalEvent: event.originalEvent,
value: this.value
});
if (this.virtualScroll) {
setTimeout(function () {
_this.viewPortOffsetTop = _this.viewPort ? _this.viewPort.measureScrollOffset() : 0;
}, 1);
}
}
};
Dropdown.prototype.ngAfterViewChecked = function () {
var _this = this;
if (this.optionsChanged && this.overlayVisible) {
this.optionsChanged = false;
if (this.virtualScroll) {
this.updateVirtualScrollSelectedIndex(true);
}
this.zone.runOutsideAngular(function () {
setTimeout(function () {
_this.alignOverlay();
}, 1);
});
}
if (this.selectedOptionUpdated && this.itemsWrapper) {
if (this.virtualScroll && this.viewPort) {
var range = this.viewPort.getRenderedRange();
this.updateVirtualScrollSelectedIndex(false);
if (range.start > this.virtualScrollSelectedIndex || range.end < this.virtualScrollSelectedIndex) {
this.viewPort.scrollToIndex(this.virtualScrollSelectedIndex);
}
}
var selectedItem = dom.DomHandler.findSingle(this.overlay, 'li.p-highlight');
if (selectedItem) {
dom.DomHandler.scrollInView(this.itemsWrapper, dom.DomHandler.findSingle(this.overlay, 'li.p-highlight'));
}
this.selectedOptionUpdated = false;
}
};
Dropdown.prototype.writeValue = function (value) {
if (this.filter) {
this.resetFilter();
}
this.value = value;
this.updateSelectedOption(value);
this.updateEditableLabel();
this.cd.markForCheck();
};
Dropdown.prototype.resetFilter = function () {
this._filterValue = null;
if (this.filterViewChild && this.filterViewChild.nativeElement) {
this.filterViewChild.nativeElement.value = '';
}
this.optionsToDisplay = this.options;
};
Dropdown.prototype.updateSelectedOption = function (val) {
this.selectedOption = this.findOption(val, this.optionsToDisplay);
if (this.autoDisplayFirst && !this.placeholder && !this.selectedOption && this.optionsToDisplay && this.optionsToDisplay.length && !this.editable) {
this.selectedOption = this.optionsToDisplay[0];
}
this.selectedOptionUpdated = true;
};
Dropdown.prototype.registerOnChange = function (fn) {
this.onModelChange = fn;
};
Dropdown.prototype.registerOnTouched = function (fn) {
this.onModelTouched = fn;
};
Dropdown.prototype.setDisabledState = function (val) {
this.disabled = val;
this.cd.markForCheck();
};
Dropdown.prototype.onMouseclick = function (event) {
if (this.disabled || this.readonly || this.isInputClick(event)) {
return;
}
this.onClick.emit(event);
this.accessibleViewChild.nativeElement.focus();
if (this.overlayVisible)
this.hide();
else
this.show();
this.cd.detectChanges();
};
Dropdown.prototype.isInputClick = function (event) {
return dom.DomHandler.hasClass(event.target, 'p-dropdown-clear-icon') ||
event.target.isSameNode(this.accessibleViewChild.nativeElement) ||
(this.editableInputViewChild && event.target.isSameNode(this.editableInputViewChild.nativeElement));
};
Dropdown.prototype.isOutsideClicked = function (event) {
return !(this.el.nativeElement.isSameNode(event.target) || this.el.nativeElement.contains(event.target) || (this.overlay && this.overlay.contains(event.target)));
};
Dropdown.prototype.isEmpty = function () {
return !this.optionsToDisplay || (this.optionsToDisplay && this.optionsToDisplay.length === 0);
};
Dropdown.prototype.onEditableInputClick = function () {
this.bindDocumentClickListener();
};
Dropdown.prototype.onEditableInputFocus = function (event) {
this.focused = true;
this.hide();
this.onFocus.emit(event);
};
Dropdown.prototype.onEditableInputChange = function (event) {
this.value = event.target.value;
this.updateSelectedOption(this.value);
this.onModelChange(this.value);
this.onChange.emit({
originalEvent: event,
value: this.value
});
};
Dropdown.prototype.show = function () {
this.overlayVisible = true;
};
Dropdown.prototype.onOverlayAnimationStart = function (event) {
switch (event.toState) {
case 'visible':
this.overlay = event.element;
var itemsWrapperSelector = this.virtualScroll ? '.cdk-virtual-scroll-viewport' : '.p-dropdown-items-wrapper';
this.itemsWrapper = dom.DomHandler.findSingle(this.overlay, itemsWrapperSelector);
this.appendOverlay();
if (this.autoZIndex) {
this.overlay.style.zIndex = String(this.baseZIndex + (++dom.DomHandler.zindex));
}
this.alignOverlay();
this.bindDocumentClickListener();
this.bindDocumentResizeListener();
this.bindScrollListener();
if (this.options && this.options.length) {
if (!this.virtualScroll) {
var selectedListItem = dom.DomHandler.findSingle(this.itemsWrapper, '.p-dropdown-item.p-highlight');
if (selectedListItem) {
dom.DomHandler.scrollInView(this.itemsWrapper, selectedListItem);
}
}
}
if (this.filterViewChild && this.filterViewChild.nativeElement) {
this.preventModelTouched = true;
if (this.autofocusFilter) {
this.filterViewChild.nativeElement.focus();
}
}
this.onShow.emit(event);
break;
case 'void':
this.onOverlayHide();
this.onHide.emit(event);
break;
}
};
Dropdown.prototype.scrollToSelectedVirtualScrollElement = function () {
if (!this.virtualAutoScrolled) {
if (this.viewPortOffsetTop) {
this.viewPort.scrollToOffset(this.viewPortOffsetTop);
}
else if (this.virtualScrollSelectedIndex > -1) {
this.viewPort.scrollToIndex(this.virtualScrollSelectedIndex);
}
}
this.virtualAutoScrolled = true;
};
Dropdown.prototype.updateVirtualScrollSelectedIndex = function (resetOffset) {
if (this.selectedOption && this.optionsToDisplay && this.optionsToDisplay.length) {
if (resetOffset) {
this.viewPortOffsetTop = 0;
}
this.virtualScrollSelectedIndex = this.findOptionIndex(this.getOptionValue(this.selectedOption), this.optionsToDisplay);
}
};
Dropdown.prototype.appendOverlay = function () {
if (this.appendTo) {
if (this.appendTo === 'body')
document.body.appendChild(this.overlay);
else
dom.DomHandler.appendChild(this.overlay, this.appendTo);
if (!this.overlay.style.minWidth) {
this.overlay.style.minWidth = dom.DomHandler.getWidth(this.containerViewChild.nativeElement) + 'px';
}
}
};
Dropdown.prototype.restoreOverlayAppend = function () {
if (this.overlay && this.appendTo) {
this.el.nativeElement.appendChild(this.overlay);
}
};
Dropdown.prototype.hide = function () {
this.overlayVisible = false;
if (this.filter && this.resetFilterOnHide) {
this.resetFilter();
}
if (this.virtualScroll) {
this.virtualAutoScrolled = false;
}
this.cd.markForCheck();
};
Dropdown.prototype.alignOverlay = function () {
if (this.overlay) {
if (this.appendTo)
dom.DomHandler.absolutePosition(this.overlay, this.containerViewChild.nativeElement);
else
dom.DomHandler.relativePosition(this.overlay, this.containerViewChild.nativeElement);
}
};
Dropdown.prototype.onInputFocus = function (event) {
this.focused = true;
this.onFocus.emit(event);
};
Dropdown.prototype.onInputBlur = function (event) {
this.focused = false;
this.onBlur.emit(event);
if (!this.preventModelTouched) {
this.onModelTouched();
}
this.preventModelTouched = false;
};
Dropdown.prototype.findPrevEnabledOption = function (index) {
var prevEnabledOption;
if (this.optionsToDisplay && this.optionsToDisplay.length) {
for (var i = (index - 1); 0 <= i; i--) {
var option = this.optionsToDisplay[i];
if (option.disabled) {
continue;
}
else {
prevEnabledOption = option;
break;
}
}
if (!prevEnabledOption) {
for (var i = this.optionsToDisplay.length - 1; i >= index; i--) {
var option = this.optionsToDisplay[i];
if (this.isOptionDisabled(option)) {
continue;
}
else {
prevEnabledOption = option;
break;
}
}
}
}
return prevEnabledOption;
};
Dropdown.prototype.findNextEnabledOption = function (index) {
var nextEnabledOption;
if (this.optionsToDisplay && this.optionsToDisplay.length) {
for (var i = (index + 1); i < (this.optionsToDisplay.length - 1); i++) {
var option = this.optionsToDisplay[i];
if (this.isOptionDisabled(option)) {
continue;
}
else {
nextEnabledOption = option;
break;
}
}
if (!nextEnabledOption) {
for (var i = 0; i < index; i++) {
var option = this.optionsToDisplay[i];
if (this.isOptionDisabled(option)) {
continue;
}
else {
nextEnabledOption = option;
break;
}
}
}
}
return nextEnabledOption;
};
Dropdown.prototype.onKeydown = function (event, search) {
if (this.readonly || !this.optionsToDisplay || this.optionsToDisplay.length === null) {
return;
}
switch (event.which) {
//down
case 40:
if (!this.overlayVisible && event.altKey) {
this.show();
}
else {
if (this.group) {
var selectedItemIndex = this.selectedOption ? this.findOptionGroupIndex(this.getOptionValue(this.selectedOption), this.optionsToDisplay) : -1;
if (selectedItemIndex !== -1) {
var nextItemIndex = selectedItemIndex.itemIndex + 1;
if (nextItemIndex < (this.getOptionGroupChildren(this.optionsToDisplay[selectedItemIndex.groupIndex]).length)) {
this.selectItem(event, this.getOptionGroupChildren(this.optionsToDisplay[selectedItemIndex.groupIndex])[nextItemIndex]);
this.selectedOptionUpdated = true;
}
else if (this.optionsToDisplay[selectedItemIndex.groupIndex + 1]) {
this.selectItem(event, this.getOptionGroupChildren(this.optionsToDisplay[selectedItemIndex.groupIndex + 1])[0]);
this.selectedOptionUpdated = true;
}
}
else {
if (this.optionsToDisplay && this.optionsToDisplay.length > 0) {
this.selectItem(event, this.getOptionGroupChildren(this.optionsToDisplay[0])[0]);
}
}
}
else {
var selectedItemIndex = this.selectedOption ? this.findOptionIndex(this.getOptionValue(this.selectedOption), this.optionsToDisplay) : -1;
var nextEnabledOption = this.findNextEnabledOption(selectedItemIndex);
if (nextEnabledOption) {
this.selectItem(event, nextEnabledOption);
this.selectedOptionUpdated = true;
}
}
}
event.preventDefault();
break;
//up
case 38:
if (this.group) {
var selectedItemIndex = this.selectedOption ? this.findOptionGroupIndex(this.getOptionValue(this.selectedOption), this.optionsToDisplay) : -1;
if (selectedItemIndex !== -1) {
var prevItemIndex = selectedItemIndex.itemIndex - 1;
if (prevItemIndex >= 0) {
this.selectItem(event, this.getOptionGroupChildren(this.optionsToDisplay[selectedItemIndex.groupIndex])[prevItemIndex]);
this.selectedOptionUpdated = true;
}
else if (prevItemIndex < 0) {
var prevGroup = this.optionsToDisplay[selectedItemIndex.groupIndex - 1];
if (prevGroup) {
this.selectItem(event, this.getOptionGroupChildren(prevGroup)[this.getOptionGroupChildren(prevGroup).length - 1]);
this.selectedOptionUpdated = true;
}
}
}
}
else {
var selectedItemIndex = this.selectedOption ? this.findOptionIndex(this.getOptionValue(this.selectedOption), this.optionsToDisplay) : -1;
var prevEnabledOption = this.findPrevEnabledOption(selectedItemIndex);
if (prevEnabledOption) {
this.selectItem(event, prevEnabledOption);
this.selectedOptionUpdated = true;
}
}
event.preventDefault();
break;
//space
case 32:
case 32:
if (!this.overlayVisible) {
this.show();
event.preventDefault();
}
break;
//enter
case 13:
if (!this.filter || (this.optionsToDisplay && this.optionsToDisplay.length > 0)) {
this.hide();
}
event.preventDefault();
break;
//escape and tab
case 27:
case 9:
this.hide();
break;
//search item based on keyboard input
default:
if (search && !event.metaKey) {
this.search(event);
}
break;
}
};
Dropdown.prototype.search = function (event) {
var _this = this;
if (this.searchTimeout) {
clearTimeout(this.searchTimeout);
}
var char = event.key;
this.previousSearchChar = this.currentSearchChar;
this.currentSearchChar = char;
if (this.previousSearchChar === this.currentSearchChar)
this.searchValue = this.currentSearchChar;
else
this.searchValue = this.searchValue ? this.searchValue + char : char;
var newOption;
if (this.group) {
var searchIndex = this.selectedOption ? this.findOptionGroupIndex(this.getOptionValue(this.selectedOption), this.optionsToDisplay) : { groupIndex: 0, itemIndex: 0 };
newOption = this.searchOptionWithinGroup(searchIndex);
}
else {
var searchIndex = this.selectedOption ? this.findOptionIndex(this.getOptionValue(this.selectedOption), this.optionsToDisplay) : -1;
newOption = this.searchOption(++searchIndex);
}
if (newOption && !this.isOptionDisabled(newOption)) {
this.selectItem(event, newOption);
this.selectedOptionUpdated = true;
}
this.searchTimeout = setTimeout(function () {
_this.searchValue = null;
}, 250);
};
Dropdown.prototype.searchOption = function (index) {
var option;
if (this.searchValue) {
option = this.searchOptionInRange(index, this.optionsToDisplay.length);
if (!option) {
option = this.searchOptionInRange(0, index);
}
}
return option;
};
Dropdown.prototype.searchOptionInRange = function (start, end) {
for (var i = start; i < end; i++) {
var opt = this.optionsToDisplay[i];
if (this.getOptionLabel(opt).toLocaleLowerCase(this.filterLocale).startsWith(this.searchValue.toLocaleLowerCase(this.filterLocale)) && !this.isOptionDisabled(opt)) {
return opt;
}
}
return null;
};
Dropdown.prototype.searchOptionWithinGroup = function (index) {
var option;
if (this.searchValue) {
for (var i = index.groupIndex; i < this.optionsToDisplay.length; i++) {
for (var j = (index.groupIndex === i) ? (index.itemIndex + 1) : 0; j < this.getOptionGroupChildren(this.optionsToDisplay[i]).length; j++) {
var opt = this.getOptionGroupChildren(this.optionsToDisplay[i])[j];
if (this.getOptionLabel(opt).toLocaleLowerCase(this.filterLocale).startsWith(this.searchValue.toLocaleLowerCase(this.filterLocale)) && !this.isOptionDisabled(opt)) {
return opt;
}
}
}
if (!option) {
for (var i = 0; i <= index.groupIndex; i++) {
for (var j = 0; j < ((index.groupIndex === i) ? index.itemIndex : this.getOptionGroupChildren(this.optionsToDisplay[i]).length); j++) {
var opt = this.getOptionGroupChildren(this.optionsToDisplay[i])[j];
if (this.getOptionLabel(opt).toLocaleLowerCase(this.filterLocale).startsWith(this.searchValue.toLocaleLowerCase(this.filterLocale)) && !this.isOptionDisabled(opt)) {
return opt;
}
}
}
}
}
return null;
};
Dropdown.prototype.findOptionIndex = function (val, opts) {
var index = -1;
if (opts) {
for (var i = 0; i < opts.length; i++) {
if ((val == null && this.getOptionValue(opts[i]) == null) || utils.ObjectUtils.equals(val, this.getOptionValue(opts[i]), this.dataKey)) {
index = i;
break;
}
}
}
return index;
};
Dropdown.prototype.findOptionGroupIndex = function (val, opts) {
var groupIndex, itemIndex;
if (opts) {
for (var i = 0; i < opts.length; i++) {
groupIndex = i;
itemIndex = this.findOptionIndex(val, this.getOptionGroupChildren(opts[i]));