ng-select
Version:
Select component for angular.
263 lines • 21.5 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
import { Component, ElementRef, EventEmitter, Input, Output, ViewChild, TemplateRef, ViewEncapsulation } from '@angular/core';
import { OptionList } from './option-list';
export class SelectDropdownComponent {
/**
* @param {?} hostElement
*/
constructor(hostElement) {
this.hostElement = hostElement;
this.optionClicked = new EventEmitter();
this.optionsListClick = new EventEmitter();
this.singleFilterClick = new EventEmitter();
this.singleFilterFocus = new EventEmitter();
this.singleFilterInput = new EventEmitter();
this.singleFilterKeydown = new EventEmitter();
this.disabledColor = '#fff';
this.disabledTextColor = '9e9e9e';
}
/**
* Event handlers. *
* @return {?}
*/
ngOnInit() {
this.optionsReset();
}
/**
* @param {?} changes
* @return {?}
*/
ngOnChanges(changes) {
if (changes.hasOwnProperty('optionList')) {
this.optionsReset();
}
}
/**
* @return {?}
*/
ngAfterViewInit() {
this.moveHighlightedIntoView();
if (!this.multiple && this.filterEnabled) {
this.filterInput.nativeElement.focus();
}
}
/**
* @return {?}
*/
onOptionsListClick() {
this.optionsListClick.emit(null);
}
/**
* @return {?}
*/
onSingleFilterClick() {
this.singleFilterClick.emit(null);
}
/**
* @param {?} event
* @return {?}
*/
onSingleFilterInput(event) {
this.singleFilterInput.emit(event.target.value);
}
/**
* @param {?} event
* @return {?}
*/
onSingleFilterKeydown(event) {
this.singleFilterKeydown.emit(event);
}
/**
* @return {?}
*/
onSingleFilterFocus() {
this.singleFilterFocus.emit(null);
}
/**
* @param {?} event
* @return {?}
*/
onOptionsWheel(event) {
this.handleOptionsWheel(event);
}
/**
* @param {?} option
* @return {?}
*/
onOptionMouseover(option) {
this.optionList.highlightOption(option);
}
/**
* @param {?} option
* @return {?}
*/
onOptionClick(option) {
this.optionClicked.emit(option);
}
/**
* Initialization. *
* @private
* @return {?}
*/
optionsReset() {
this.optionList.filter('');
this.optionList.highlight();
}
/**
* View. *
* @param {?} option
* @return {?}
*/
getOptionStyle(option) {
if (option.highlighted) {
/** @type {?} */
let style = {};
if (typeof this.highlightColor !== 'undefined') {
style['background-color'] = this.highlightColor;
}
if (typeof this.highlightTextColor !== 'undefined') {
style['color'] = this.highlightTextColor;
}
return style;
}
else {
return {};
}
}
/**
* @return {?}
*/
moveHighlightedIntoView() {
/** @type {?} */
let list = this.optionsList.nativeElement;
/** @type {?} */
let listHeight = list.offsetHeight;
/** @type {?} */
let itemIndex = this.optionList.getHighlightedIndex();
if (itemIndex > -1) {
/** @type {?} */
let item = list.children[0].children[itemIndex];
/** @type {?} */
let itemHeight = item.offsetHeight;
/** @type {?} */
let itemTop = itemIndex * itemHeight;
/** @type {?} */
let itemBottom = itemTop + itemHeight;
/** @type {?} */
let viewTop = list.scrollTop;
/** @type {?} */
let viewBottom = viewTop + listHeight;
if (itemBottom > viewBottom) {
list.scrollTop = itemBottom - listHeight;
}
else if (itemTop < viewTop) {
list.scrollTop = itemTop;
}
}
}
/**
* @private
* @param {?} e
* @return {?}
*/
handleOptionsWheel(e) {
/** @type {?} */
let div = this.optionsList.nativeElement;
/** @type {?} */
let atTop = div.scrollTop === 0;
/** @type {?} */
let atBottom = div.offsetHeight + div.scrollTop === div.scrollHeight;
if (atTop && e.deltaY < 0) {
e.preventDefault();
}
else if (atBottom && e.deltaY > 0) {
e.preventDefault();
}
}
}
SelectDropdownComponent.decorators = [
{ type: Component, args: [{
selector: 'select-dropdown',
template: "<div\n [ngClass]=\"{'below': isBelow, 'above': !isBelow}\"\n [ngStyle]=\"{'top.px': top, 'left.px': left, 'width.px': width}\">\n\n <div class=\"filter\"\n *ngIf=\"!multiple && filterEnabled\">\n <input\n #filterInput\n autocomplete=\"off\"\n [placeholder]=\"placeholder\"\n (click)=\"onSingleFilterClick()\"\n (input)=\"onSingleFilterInput($event)\"\n (keydown)=\"onSingleFilterKeydown($event)\"\n (focus)=\"onSingleFilterFocus()\">\n </div>\n\n <div class=\"options\"\n (click)=\"onOptionsListClick()\"\n #optionsList>\n <ul\n (wheel)=\"onOptionsWheel($event)\">\n <li *ngFor=\"let option of optionList.filtered\"\n [ngClass]=\"{'highlighted': option.highlighted, 'selected': option.selected, 'disabled': option.disabled}\"\n [ngStyle]=\"getOptionStyle(option)\"\n (click)=\"onOptionClick(option)\"\n (mouseover)=\"onOptionMouseover(option)\">\n <ng-container *ngTemplateOutlet=\"optionTemplate; context:{option: option.wrappedOption}\"></ng-container>\n <span *ngIf=\"!optionTemplate\">{{option.label}}</span>\n </li>\n <li\n *ngIf=\"!optionList.hasShown\"\n class=\"message\">\n {{notFoundMsg}}\n </li>\n </ul>\n </div>\n</div>\n",
encapsulation: ViewEncapsulation.None,
styles: ["select-dropdown,select-dropdown *{box-sizing:border-box}select-dropdown>div{background-color:#fff;border:1px solid #ccc;box-sizing:border-box;position:absolute;z-index:1}select-dropdown>div.above{border-bottom:none}select-dropdown>div.below{border-top:none}select-dropdown>div .filter{padding:3px;width:100%}select-dropdown>div .filter input{border:1px solid #eee;box-sizing:border-box;padding:4px;width:100%}select-dropdown>div .options{max-height:200px;overflow-y:auto}select-dropdown>div .options ul{list-style:none;margin:0;padding:0}select-dropdown>div .options ul li{padding:4px 8px;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}select-dropdown .selected{background-color:#e0e0e0}select-dropdown .highlighted,select-dropdown .selected.highlighted{background-color:#2196f3;color:#fff}select-dropdown .disabled{background-color:#fff;color:#9e9e9e;cursor:default;pointer-events:none}"]
}] }
];
/** @nocollapse */
SelectDropdownComponent.ctorParameters = () => [
{ type: ElementRef }
];
SelectDropdownComponent.propDecorators = {
filterEnabled: [{ type: Input }],
highlightColor: [{ type: Input }],
highlightTextColor: [{ type: Input }],
left: [{ type: Input }],
multiple: [{ type: Input }],
notFoundMsg: [{ type: Input }],
optionList: [{ type: Input }],
isBelow: [{ type: Input }],
top: [{ type: Input }],
width: [{ type: Input }],
placeholder: [{ type: Input }],
optionTemplate: [{ type: Input }],
optionClicked: [{ type: Output }],
optionsListClick: [{ type: Output }],
singleFilterClick: [{ type: Output }],
singleFilterFocus: [{ type: Output }],
singleFilterInput: [{ type: Output }],
singleFilterKeydown: [{ type: Output }],
filterInput: [{ type: ViewChild, args: ['filterInput', { static: false },] }],
optionsList: [{ type: ViewChild, args: ['optionsList', { static: true },] }]
};
if (false) {
/** @type {?} */
SelectDropdownComponent.prototype.filterEnabled;
/** @type {?} */
SelectDropdownComponent.prototype.highlightColor;
/** @type {?} */
SelectDropdownComponent.prototype.highlightTextColor;
/** @type {?} */
SelectDropdownComponent.prototype.left;
/** @type {?} */
SelectDropdownComponent.prototype.multiple;
/** @type {?} */
SelectDropdownComponent.prototype.notFoundMsg;
/** @type {?} */
SelectDropdownComponent.prototype.optionList;
/** @type {?} */
SelectDropdownComponent.prototype.isBelow;
/** @type {?} */
SelectDropdownComponent.prototype.top;
/** @type {?} */
SelectDropdownComponent.prototype.width;
/** @type {?} */
SelectDropdownComponent.prototype.placeholder;
/** @type {?} */
SelectDropdownComponent.prototype.optionTemplate;
/** @type {?} */
SelectDropdownComponent.prototype.optionClicked;
/** @type {?} */
SelectDropdownComponent.prototype.optionsListClick;
/** @type {?} */
SelectDropdownComponent.prototype.singleFilterClick;
/** @type {?} */
SelectDropdownComponent.prototype.singleFilterFocus;
/** @type {?} */
SelectDropdownComponent.prototype.singleFilterInput;
/** @type {?} */
SelectDropdownComponent.prototype.singleFilterKeydown;
/** @type {?} */
SelectDropdownComponent.prototype.filterInput;
/** @type {?} */
SelectDropdownComponent.prototype.optionsList;
/** @type {?} */
SelectDropdownComponent.prototype.disabledColor;
/** @type {?} */
SelectDropdownComponent.prototype.disabledTextColor;
/** @type {?} */
SelectDropdownComponent.prototype.hostElement;
}
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{AfterViewInit, Component, ElementRef, EventEmitter, Input, OnChanges, OnInit, Output, ViewChild, TemplateRef, ViewEncapsulation} from '@angular/core';\nimport {Option} from './option';\nimport {OptionList} from './option-list';\n\n@Component({\n    selector: 'select-dropdown',\n    templateUrl: 'select-dropdown.component.html',\n    styleUrls: ['select-dropdown.component.scss'],\n    encapsulation: ViewEncapsulation.None\n})\n\nexport class SelectDropdownComponent\n        implements AfterViewInit, OnChanges, OnInit {\n\n    @Input() filterEnabled: boolean;\n    @Input() highlightColor: string;\n    @Input() highlightTextColor: string;\n    @Input() left: number;\n    @Input() multiple: boolean;\n    @Input() notFoundMsg: string;\n    @Input() optionList: OptionList;\n    @Input() isBelow: boolean;\n    @Input() top: number;\n    @Input() width: number;\n    @Input() placeholder: string;\n    @Input() optionTemplate: TemplateRef<any>;\n\n    @Output() optionClicked = new EventEmitter<Option>();\n    @Output() optionsListClick = new EventEmitter<null>();\n    @Output() singleFilterClick = new EventEmitter<null>();\n    @Output() singleFilterFocus = new EventEmitter<null>();\n    @Output() singleFilterInput = new EventEmitter<string>();\n    @Output() singleFilterKeydown = new EventEmitter<any>();\n\n    @ViewChild('filterInput', { static: false }) filterInput: any;\n    @ViewChild('optionsList', { static: true }) optionsList: any;\n\n    disabledColor: string = '#fff';\n    disabledTextColor: string = '9e9e9e';\n\n    constructor(\n        public hostElement: ElementRef\n    ) {}\n\n    /** Event handlers. **/\n\n    ngOnInit() {\n        this.optionsReset();\n    }\n\n    ngOnChanges(changes: any) {\n        if (changes.hasOwnProperty('optionList')) {\n            this.optionsReset();\n        }\n    }\n\n    ngAfterViewInit() {\n        this.moveHighlightedIntoView();\n        if (!this.multiple && this.filterEnabled) {\n            this.filterInput.nativeElement.focus();\n        }\n    }\n\n    onOptionsListClick() {\n        this.optionsListClick.emit(null);\n    }\n\n    onSingleFilterClick() {\n        this.singleFilterClick.emit(null);\n    }\n\n    onSingleFilterInput(event: any) {\n        this.singleFilterInput.emit(event.target.value);\n    }\n\n    onSingleFilterKeydown(event: any) {\n        this.singleFilterKeydown.emit(event);\n    }\n\n    onSingleFilterFocus() {\n        this.singleFilterFocus.emit(null);\n    }\n\n    onOptionsWheel(event: any) {\n        this.handleOptionsWheel(event);\n    }\n\n    onOptionMouseover(option: Option) {\n        this.optionList.highlightOption(option);\n    }\n\n    onOptionClick(option: Option) {\n        this.optionClicked.emit(option);\n    }\n\n    /** Initialization. **/\n\n    private optionsReset() {\n        this.optionList.filter('');\n        this.optionList.highlight();\n    }\n\n    /** View. **/\n\n    getOptionStyle(option: Option): any {\n        if (option.highlighted) {\n            let style: any = {};\n\n            if (typeof this.highlightColor !== 'undefined') {\n                style['background-color'] = this.highlightColor;\n            }\n            if (typeof this.highlightTextColor !== 'undefined') {\n                style['color'] = this.highlightTextColor;\n            }\n            return style;\n        }\n        else {\n            return {};\n        }\n    }\n\n    moveHighlightedIntoView() {\n\n        let list = this.optionsList.nativeElement;\n        let listHeight = list.offsetHeight;\n\n        let itemIndex = this.optionList.getHighlightedIndex();\n\n        if (itemIndex > -1) {\n            let item = list.children[0].children[itemIndex];\n            let itemHeight = item.offsetHeight;\n\n            let itemTop = itemIndex * itemHeight;\n            let itemBottom = itemTop + itemHeight;\n\n            let viewTop = list.scrollTop;\n            let viewBottom = viewTop + listHeight;\n\n            if (itemBottom > viewBottom) {\n                list.scrollTop = itemBottom - listHeight;\n            }\n            else if (itemTop < viewTop) {\n                list.scrollTop = itemTop;\n            }\n        }\n    }\n\n    private handleOptionsWheel(e: any) {\n        let div = this.optionsList.nativeElement;\n        let atTop = div.scrollTop === 0;\n        let atBottom = div.offsetHeight + div.scrollTop === div.scrollHeight;\n\n        if (atTop && e.deltaY < 0) {\n            e.preventDefault();\n        }\n        else if (atBottom && e.deltaY > 0) {\n            e.preventDefault();\n        }\n    }\n}\n"]}