primeng
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JavaScript
(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, scrolling, core, animations, common, api, dom, utils, forms, tooltip, ripple) { 'use strict';
/*! *****************************************************************************
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) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b)
if (Object.prototype.hasOwnProperty.call(b, p))
d[p] = b[p]; };
return extendStatics(d, b);
};
function __extends(d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
}
var __assign = function () {
__assign = Object.assign || function __assign(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s)
if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
function __rest(s, e) {
var t = {};
for (var p in s)
if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
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}
return t;
}
function __decorate(decorators, target, key, desc) {
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else
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if (d = decorators[i])
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function __param(paramIndex, decorator) {
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}
function __metadata(metadataKey, metadataValue) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function")
return Reflect.metadata(metadataKey, metadataValue);
}
function __awaiter(thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try {
step(generator.next(value));
}
catch (e) {
reject(e);
} }
function rejected(value) { try {
step(generator["throw"](value));
}
catch (e) {
reject(e);
} }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
}
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function verb(n) { return function (v) { return step([n, v]); }; }
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var __createBinding = Object.create ? (function (o, m, k, k2) {
if (k2 === undefined)
k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function () { return m[k]; } });
}) : (function (o, m, k, k2) {
if (k2 === undefined)
k2 = k;
o[k2] = m[k];
});
function __exportStar(m, o) {
for (var p in m)
if (p !== "default" && !Object.prototype.hasOwnProperty.call(o, p))
__createBinding(o, m, p);
}
function __values(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m)
return m.call(o);
if (o && typeof o.length === "number")
return {
next: function () {
if (o && i >= o.length)
o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
}
function __read(o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m)
return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done)
ar.push(r.value);
}
catch (error) {
e = { error: error };
}
finally {
try {
if (r && !r.done && (m = i["return"]))
m.call(i);
}
finally {
if (e)
throw e.error;
}
}
return ar;
}
/** @deprecated */
function __spread() {
for (var ar = [], i = 0; i < arguments.length; i++)
ar = ar.concat(__read(arguments[i]));
return ar;
}
/** @deprecated */
function __spreadArrays() {
for (var s = 0, i = 0, il = arguments.length; i < il; i++)
s += arguments[i].length;
for (var r = Array(s), k = 0, i = 0; i < il; i++)
for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
r[k] = a[j];
return r;
}
function __spreadArray(to, from) {
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to[j] = from[i];
return to;
}
function __await(v) {
return this instanceof __await ? (this.v = v, this) : new __await(v);
}
function __asyncGenerator(thisArg, _arguments, generator) {
if (!Symbol.asyncIterator)
throw new TypeError("Symbol.asyncIterator is not defined.");
var g = generator.apply(thisArg, _arguments || []), i, q = [];
return i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i;
function verb(n) { if (g[n])
i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }
function resume(n, v) { try {
step(g[n](v));
}
catch (e) {
settle(q[0][3], e);
} }
function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }
function fulfill(value) { resume("next", value); }
function reject(value) { resume("throw", value); }
function settle(f, v) { if (f(v), q.shift(), q.length)
resume(q[0][0], q[0][1]); }
}
function __asyncDelegator(o) {
var i, p;
return i = {}, verb("next"), verb("throw", function (e) { throw e; }), verb("return"), i[Symbol.iterator] = function () { return this; }, i;
function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === "return" } : f ? f(v) : v; } : f; }
}
function __asyncValues(o) {
if (!Symbol.asyncIterator)
throw new TypeError("Symbol.asyncIterator is not defined.");
var m = o[Symbol.asyncIterator], i;
return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i);
function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
function settle(resolve, reject, d, v) { Promise.resolve(v).then(function (v) { resolve({ value: v, done: d }); }, reject); }
}
function __makeTemplateObject(cooked, raw) {
if (Object.defineProperty) {
Object.defineProperty(cooked, "raw", { value: raw });
}
else {
cooked.raw = raw;
}
return cooked;
}
;
var __setModuleDefault = Object.create ? (function (o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function (o, v) {
o["default"] = v;
};
function __importStar(mod) {
if (mod && mod.__esModule)
return mod;
var result = {};
if (mod != null)
for (var k in mod)
if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k))
__createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
}
function __importDefault(mod) {
return (mod && mod.__esModule) ? mod : { default: mod };
}
function __classPrivateFieldGet(receiver, privateMap) {
if (!privateMap.has(receiver)) {
throw new TypeError("attempted to get private field on non-instance");
}
return privateMap.get(receiver);
}
function __classPrivateFieldSet(receiver, privateMap, value) {
if (!privateMap.has(receiver)) {
throw new TypeError("attempted to set private field on non-instance");
}
privateMap.set(receiver, value);
return value;
}
var DROPDOWN_VALUE_ACCESSOR = {
provide: forms.NG_VALUE_ACCESSOR,
useExisting: core.forwardRef(function () { return Dropdown; }),
multi: true
};
var DropdownItem = /** @class */ (function () {
function DropdownItem() {
this.onClick = new core.EventEmitter();
}
DropdownItem.prototype.onOptionClick = function (event) {
this.onClick.emit({
originalEvent: event,
option: this.option
});
};
return DropdownItem;
}());
DropdownItem.decorators = [
{ type: core.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 "
},] }
];
DropdownItem.propDecorators = {
option: [{ type: core.Input }],
selected: [{ type: core.Input }],
label: [{ type: core.Input }],
disabled: [{ type: core.Input }],
visible: [{ type: core.Input }],
itemSize: [{ type: core.Input }],
template: [{ type: core.Input }],
onClick: [{ type: core.Output }]
};
var Dropdown = /** @class */ (function () {
function Dropdown(el, renderer, cd, zone, filterService) {
this.el = el;
this.renderer = renderer;
this.cd = cd;
this.zone = zone;
this.filterService = filterService;
this.scrollHeight = '200px';
this.resetFilterOnHide = false;
this.dropdownIcon = 'pi pi-chevron-down';
this.autoDisplayFirst = true;
this.emptyFilterMessage = 'No results found';
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 core.EventEmitter();
this.onFocus = new core.EventEmitter();
this.onBlur = new core.EventEmitter();
this.onClick = new core.EventEmitter();
this.onShow = new core.EventEmitter();
this.onHide = new core.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;
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 '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;
this.updateFilledState();
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
});
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 : 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(event);
}, 150);
};
Dropdown.prototype.selectItem = function (event, option) {
var _this = this;
if (this.selectedOption != option) {
this.selectedOption = option;
this.value = this.getOptionValue(option);
this.filled = true;
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.updateFilledState();
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(event);
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.onEditableInputClick = function () {
this.bindDocumentClickListener();
};
Dropdown.prototype.onEditableInputFocus = function (event) {
this.focused = true;
this.hide(event);
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();
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 (event) {
this.overlayVisible = false;
if (this.filter && this.resetFilterOnHide) {
this.resetFilter();
}
if (this.virtualScroll) {
this.virtualAutoScrolled = false;
}
this.cd.markForCheck();
this.onHide.emit(event);
};
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); index < (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 {
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);
}
event.preventDefault();
break;
//escape and tab
case 27:
case 9:
this.hide(event);
break;
//search item based on keyboard input
default:
if (search) {
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]));
if (itemIndex !== -1) {
break;
}
}
}
if (itemIndex !== -1) {
return { groupIndex: groupIndex, itemIndex: itemIndex };
}
else {
return -1;
}
};
Dropdown.prototype.findOption = function (val, opts, inGroup) {
var e_1, _a;
if (this.group && !inGroup) {
var opt = void 0;
if (opts && opts.length) {
try {
for (var opts_1 = __values(opts), opts_1_1 = opts_1.next(); !opts_1_1.done; opts_1_1 = opts_1.next()) {
var optgroup = opts_1_1.value;
opt = this.findOption(val, this.getOptionGroupChildren(optgroup), true);
if (opt) {
break;
}
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (opts_1_1 && !opts_1_1.done && (_a = opts_1.return)) _a.call(opts_1);
}
finally { if (e_1) throw e_1.error; }
}
}
return opt;
}
else {
var index = this.findOptionIndex(val, opts);
return (index != -1) ? opts[index] : null;
}
};
Dropdown.prototype.onFilter = function (event) {
var inputValue = event.target.value;
if (inputValue && inputValue.length) {
this._filterValue = inputValue;
this.activateFilter();
}
else {
this._filterValue = null;
this.optionsToDisplay = this.options;
}
this.optionsChanged = true;
};
Dropdown.prototype.activateFilter = function () {
var e_2, _a;
var searchFields = (this.filterBy || this.optionLabel || 'label').split(',');
if (this.options && this.options.length) {
if (this.group) {
var filteredGroups = [];
try {
for (var _b = __values(this.options), _c = _b.next(); !_c.done; _c = _b.next()) {
var optgroup = _c.value;
var filteredSubOptions = this.filterService.filter(this.getOptionGroupChildren(optgroup), searchFields, this.filterValue, this.filterMatchMode, this.filterLocale);
if (filteredSubOptions && filteredSubOptions.length) {
filteredGroups.push({
label: optgroup.label,
value: optgroup.value,
items: filteredSubOptions
});
}
}
}
catch (e_2_1) { e_2 = { error: e_2_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_2) throw e_2.error; }
}
this.optionsToDisplay = filteredGroups;
}
else {
this.optionsToDisplay = this.filterService.filter(this.options, searchFields, this.filterValue, this.filterMatchMode, this.filterLocale);
}
this.optionsChanged = true;
}
};
Dropdown.prototype.applyFocus = function () {
if (this.editable)
dom.DomHandler.findSingle(this.el.nativeElement, '.p-dropdown-label.p-inputtext').focus();
else
dom.DomHandler.findSingle(this.el.nativeElement, 'input[readonly]').focus();
};
Dropdown.prototype.focus = function () {
this.applyFocus();
};
Dropdown.prototype.bindDocumentClickListener = function () {
var _this = this;
if (!this.documentClickListener) {
var documentTarget = this.el ? this.el.nativeElement.ownerDocument : 'document';
this.documentClickListener = this.renderer.listen(documentTarget, 'click', function (event) {
if (_this.isOutsideClicked(event)) {
_this.hide(event);
_this.unbindDocumentClickListener();
}
_this.cd.markForCheck();
});
}
};
Dropdown.prototype.unbindDocumentClickListener = function () {
if (this.documentClickListener) {
this.documentClickListener();
this.documentClickListener = null;
}
};
Dropdown.prototype.bindDocumentResizeListener = function () {
this.documentResizeListener = this.onWindowResize.bind(this);
window.addEventListener('resize', this.documentResizeListener);
};
Dropdown.prototype.unbindDocumentResizeListener = function () {
if (this.documentResizeListener) {
window.removeEventListener('resize', this.documentResizeListener);
this.documentResizeListener = null;