@neocomplexx/ngx-neo-completer-mat
Version:
221 lines • 30.6 kB
JavaScript
import { ChangeDetectorRef, Directive, Host, Input, TemplateRef, ViewContainerRef } from '@angular/core';
import { timer } from 'rxjs';
import { catchError, take } from 'rxjs/operators';
import { CtrCompleter } from './ctr-completer';
import { MIN_SEARCH_LENGTH, PAUSE, CLEAR_TIMEOUT, isNil } from '../globals';
import * as i0 from "@angular/core";
import * as i1 from "./ctr-completer";
export class CtrListContext {
constructor(results, searching, searchInitialized, isOpen) {
this.results = results;
this.searching = searching;
this.searchInitialized = searchInitialized;
this.isOpen = isOpen;
}
}
// tslint:disable:no-non-null-assertion
// tslint:disable-next-line:directive-class-suffix
export class CtrList {
constructor(completer, templateRef, viewContainer, cd) {
this.completer = completer;
this.templateRef = templateRef;
this.viewContainer = viewContainer;
this.cd = cd;
this.ctrListMinSearchLength = MIN_SEARCH_LENGTH;
this.ctrListPause = PAUSE;
this.ctrListAutoMatch = false;
this.ctrListAutoHighlight = false;
this.ctrListDisplaySearching = true;
// private results: CompleterItem[] = [];
this.term = null;
// private searching = false;
this.searchTimer = null;
this.clearTimer = null;
this.ctx = new CtrListContext([], false, false, false);
this._initialValue = null;
this.viewRef = null;
}
ngOnInit() {
this.completer.registerList(this);
this.viewRef = this.viewContainer.createEmbeddedView(this.templateRef, new CtrListContext([], false, false, false));
}
set dataService(newService) {
this._dataService = newService;
this.dataServiceSubscribe();
}
set initialValue(value) {
if (this._dataService && typeof this._dataService.convertToItem === 'function') {
setTimeout(() => {
if (value) {
const initialItem = this._dataService.convertToItem(value);
if (initialItem) {
this.completer.onSelected(initialItem, false);
}
}
});
}
else if (!this._dataService) {
this._initialValue = value;
}
}
search(term) {
if (!isNil(term) && term.length >= this.ctrListMinSearchLength && this.term !== term) {
if (this.searchTimer) {
this.searchTimer.unsubscribe();
this.searchTimer = null;
}
if (!this.ctx.searching) {
if (this.ctrListDisplaySearching) {
this.ctx.results = [];
}
this.ctx.searching = true;
this.ctx.searchInitialized = true;
this.refreshTemplate();
}
if (this.clearTimer) {
this.clearTimer.unsubscribe();
}
this.searchTimer = timer(this.ctrListPause).pipe(take(1)).subscribe(() => {
this.searchTimerComplete(term);
});
}
else if (!isNil(term) && term.length < this.ctrListMinSearchLength) {
this.clear();
this.term = '';
}
}
clear() {
if (this.searchTimer) {
this.searchTimer.unsubscribe();
}
this.clearTimer = timer(CLEAR_TIMEOUT).pipe(take(1)).subscribe(() => {
this._clear();
});
}
open() {
if (!this.ctx.searchInitialized) {
this.search('');
}
this.refreshTemplate();
}
isOpen(open) {
this.ctx.isOpen = open;
}
_clear() {
if (this.searchTimer) {
this.searchTimer.unsubscribe();
this.searchTimer = null;
}
if (this.dataService) {
this.dataService.cancel();
}
this.viewContainer.clear();
this.viewRef = null;
}
searchTimerComplete(term) {
// Begin the search
if (isNil(term) || term.length < this.ctrListMinSearchLength) {
this.ctx.searching = false;
return;
}
this.term = term;
this._dataService.search(term);
}
refreshTemplate() {
// create the template if it doesn't exist
if (!this.viewRef) {
this.viewRef = this.viewContainer.createEmbeddedView(this.templateRef, this.ctx);
}
else if (!this.viewRef.destroyed) {
// refresh the template
this.viewRef.context.isOpen = this.ctx.isOpen;
this.viewRef.context.results = this.ctx.results;
this.viewRef.context.searching = this.ctx.searching;
this.viewRef.context.searchInitialized = this.ctx.searchInitialized;
this.viewRef.detectChanges();
}
this.cd.markForCheck();
}
getBestMatchIndex() {
if (!this.ctx.results || !this.term) {
return null;
}
// First try to find the exact term
let bestMatch = this.ctx.results.findIndex(item => item.title.toLowerCase() === this.term.toLocaleLowerCase());
// If not try to find the first item that starts with the term
if (bestMatch < 0) {
bestMatch = this.ctx.results.findIndex(item => item.title.toLowerCase().startsWith(this.term.toLocaleLowerCase()));
}
// If not try to find the first item that includes the term
if (bestMatch < 0) {
bestMatch = this.ctx.results.findIndex(item => item.title.toLowerCase().includes(this.term.toLocaleLowerCase()));
}
return bestMatch < 0 ? null : bestMatch;
}
dataServiceSubscribe() {
if (this._dataService) {
this._dataService.pipe(catchError(err => {
console.error(err);
console.error('Unexpected error in dataService: errors should be handled by the dataService Observable');
return [];
}))
.subscribe(results => {
this.ctx.searchInitialized = true;
this.ctx.searching = false;
this.ctx.results = results;
if (this.ctrListAutoMatch && results && results.length === 1 && results[0].title && !isNil(this.term) &&
results[0].title.toLocaleLowerCase() === this.term.toLocaleLowerCase()) {
// Do automatch
this.completer.onSelected(results[0]);
return;
}
if (this._initialValue) {
this.initialValue = this._initialValue;
this._initialValue = null;
}
this.refreshTemplate();
if (this.ctrListAutoHighlight) {
this.completer.autoHighlightIndex = this.getBestMatchIndex();
}
});
if (this._dataService.dataSourceChange) {
this._dataService.dataSourceChange.subscribe(() => {
this.term = null;
this.ctx.searchInitialized = false;
this.ctx.searching = false;
this.ctx.results = [];
this.refreshTemplate();
this.completer.onDataSourceChange();
});
}
}
}
}
CtrList.ɵfac = function CtrList_Factory(t) { return new (t || CtrList)(i0.ɵɵdirectiveInject(i1.CtrCompleter, 1), i0.ɵɵdirectiveInject(i0.TemplateRef), i0.ɵɵdirectiveInject(i0.ViewContainerRef), i0.ɵɵdirectiveInject(i0.ChangeDetectorRef)); };
CtrList.ɵdir = i0.ɵɵdefineDirective({ type: CtrList, selectors: [["", "ctrList", ""]], inputs: { ctrListMinSearchLength: "ctrListMinSearchLength", ctrListPause: "ctrListPause", ctrListAutoMatch: "ctrListAutoMatch", ctrListAutoHighlight: "ctrListAutoHighlight", ctrListDisplaySearching: "ctrListDisplaySearching", dataService: ["ctrList", "dataService"], initialValue: ["ctrListInitialValue", "initialValue"] } });
/*@__PURE__*/ (function () { i0.ɵsetClassMetadata(CtrList, [{
type: Directive,
args: [{
// tslint:disable-next-line:directive-selector
selector: '[ctrList]',
}]
}], function () { return [{ type: i1.CtrCompleter, decorators: [{
type: Host
}] }, { type: i0.TemplateRef }, { type: i0.ViewContainerRef }, { type: i0.ChangeDetectorRef }]; }, { ctrListMinSearchLength: [{
type: Input
}], ctrListPause: [{
type: Input
}], ctrListAutoMatch: [{
type: Input
}], ctrListAutoHighlight: [{
type: Input
}], ctrListDisplaySearching: [{
type: Input
}], dataService: [{
type: Input,
args: ['ctrList']
}], initialValue: [{
type: Input,
args: ['ctrListInitialValue']
}] }); })();
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{ ChangeDetectorRef, Directive, Host, Input, TemplateRef, ViewContainerRef } from '@angular/core';\r\nimport type { EmbeddedViewRef, OnInit } from '@angular/core';\r\nimport { Subscription, timer } from 'rxjs';\r\nimport { catchError, take } from 'rxjs/operators';\r\n\r\nimport { CtrCompleter } from './ctr-completer';\r\nimport type { CompleterList } from './ctr-completer';\r\nimport { CompleterData } from '../services/completer-data';\r\nimport { CompleterItem } from '../components/completer-item';\r\nimport { MIN_SEARCH_LENGTH, PAUSE, CLEAR_TIMEOUT, isNil } from '../globals';\r\n\r\nexport class CtrListContext {\r\n    constructor(\r\n        public results: CompleterItem[] | null,\r\n        public searching: boolean,\r\n        public searchInitialized: boolean,\r\n        public isOpen: boolean\r\n    ) { }\r\n}\r\n\r\n@Directive({\r\n    // tslint:disable-next-line:directive-selector\r\n    selector: '[ctrList]',\r\n})\r\n// tslint:disable:no-non-null-assertion\r\n// tslint:disable-next-line:directive-class-suffix\r\nexport class CtrList implements OnInit, CompleterList {\r\n    @Input() public ctrListMinSearchLength = MIN_SEARCH_LENGTH;\r\n    @Input() public ctrListPause = PAUSE;\r\n    @Input() public ctrListAutoMatch = false;\r\n    @Input() public ctrListAutoHighlight = false;\r\n    @Input() public ctrListDisplaySearching = true;\r\n\r\n    private _dataService: CompleterData;\r\n    // private results: CompleterItem[] = [];\r\n    private term: string | null = null;\r\n    // private searching = false;\r\n    private searchTimer: Subscription | null = null;\r\n    private clearTimer: Subscription | null = null;\r\n    private ctx = new CtrListContext([], false, false, false);\r\n    private _initialValue: any = null;\r\n    private viewRef: EmbeddedViewRef<CtrListContext> | null = null;\r\n\r\n    constructor(\r\n        @Host() private completer: CtrCompleter,\r\n        private templateRef: TemplateRef<CtrListContext>,\r\n        private viewContainer: ViewContainerRef,\r\n        private cd: ChangeDetectorRef) { }\r\n\r\n    public ngOnInit() {\r\n        this.completer.registerList(this);\r\n        this.viewRef = this.viewContainer.createEmbeddedView(\r\n            this.templateRef,\r\n            new CtrListContext([], false, false, false)\r\n        );\r\n    }\r\n\r\n    @Input('ctrList')\r\n    public set dataService(newService: CompleterData) {\r\n        this._dataService = newService;\r\n        this.dataServiceSubscribe();\r\n    }\r\n\r\n    @Input('ctrListInitialValue')\r\n    public set initialValue(value: any) {\r\n        if (this._dataService && typeof this._dataService.convertToItem === 'function') {\r\n            setTimeout(() => {\r\n                if (value) {\r\n                    const initialItem = this._dataService.convertToItem!(value);\r\n                    if (initialItem) {\r\n                        this.completer.onSelected(initialItem, false);\r\n                    }\r\n                }\r\n            });\r\n        } else if (!this._dataService) {\r\n            this._initialValue = value;\r\n        }\r\n    }\r\n\r\n    public search(term: string) {\r\n        if (!isNil(term) && term.length >= this.ctrListMinSearchLength && this.term !== term) {\r\n            if (this.searchTimer) {\r\n                this.searchTimer.unsubscribe();\r\n                this.searchTimer = null;\r\n            }\r\n            if (!this.ctx.searching) {\r\n                if (this.ctrListDisplaySearching) {\r\n                    this.ctx.results = [];\r\n                }\r\n                this.ctx.searching = true;\r\n                this.ctx.searchInitialized = true;\r\n                this.refreshTemplate();\r\n            }\r\n            if (this.clearTimer) {\r\n                this.clearTimer.unsubscribe();\r\n            }\r\n            this.searchTimer = timer(this.ctrListPause).pipe(take(1)).subscribe(() => {\r\n                this.searchTimerComplete(term);\r\n            });\r\n        } else if (!isNil(term) && term.length < this.ctrListMinSearchLength) {\r\n            this.clear();\r\n            this.term = '';\r\n        }\r\n    }\r\n\r\n    public clear() {\r\n        if (this.searchTimer) {\r\n            this.searchTimer.unsubscribe();\r\n        }\r\n        this.clearTimer = timer(CLEAR_TIMEOUT).pipe(take(1)).subscribe(() => {\r\n            this._clear();\r\n        });\r\n    }\r\n\r\n    public open() {\r\n        if (!this.ctx.searchInitialized) {\r\n            this.search('');\r\n        }\r\n        this.refreshTemplate();\r\n    }\r\n\r\n    public isOpen(open: boolean) {\r\n        this.ctx.isOpen = open;\r\n    }\r\n\r\n    private _clear() {\r\n        if (this.searchTimer) {\r\n            this.searchTimer.unsubscribe();\r\n            this.searchTimer = null;\r\n        }\r\n        if (this.dataService) {\r\n            this.dataService.cancel();\r\n        }\r\n\r\n        this.viewContainer.clear();\r\n        this.viewRef = null;\r\n    }\r\n\r\n    private searchTimerComplete(term: string) {\r\n        // Begin the search\r\n        if (isNil(term) || term.length < this.ctrListMinSearchLength) {\r\n            this.ctx.searching = false;\r\n            return;\r\n        }\r\n        this.term = term;\r\n        this._dataService.search(term);\r\n    }\r\n\r\n    private refreshTemplate() {\r\n        // create the template if it doesn't exist\r\n        if (!this.viewRef) {\r\n            this.viewRef = this.viewContainer.createEmbeddedView(\r\n                this.templateRef,\r\n                this.ctx\r\n            );\r\n        } else if (!this.viewRef.destroyed) {\r\n            // refresh the template\r\n            this.viewRef!.context.isOpen = this.ctx.isOpen;\r\n            this.viewRef!.context.results = this.ctx.results;\r\n            this.viewRef!.context.searching = this.ctx.searching;\r\n            this.viewRef!.context.searchInitialized = this.ctx.searchInitialized;\r\n            this.viewRef.detectChanges();\r\n        }\r\n        this.cd.markForCheck();\r\n    }\r\n\r\n    private getBestMatchIndex() {\r\n        if (!this.ctx.results || !this.term) {\r\n            return null;\r\n        }\r\n\r\n        // First try to find the exact term\r\n        let bestMatch = this.ctx.results.findIndex(item => item.title.toLowerCase() === this.term!.toLocaleLowerCase());\r\n        // If not try to find the first item that starts with the term\r\n        if (bestMatch < 0) {\r\n            bestMatch = this.ctx.results.findIndex(item => item.title.toLowerCase().startsWith(this.term!.toLocaleLowerCase()));\r\n        }\r\n        // If not try to find the first item that includes the term\r\n        if (bestMatch < 0) {\r\n            bestMatch = this.ctx.results.findIndex(item => item.title.toLowerCase().includes(this.term!.toLocaleLowerCase()));\r\n        }\r\n\r\n        return bestMatch < 0 ? null : bestMatch;\r\n    }\r\n\r\n    private dataServiceSubscribe() {\r\n        if (this._dataService) {\r\n            this._dataService.pipe(\r\n                catchError(err => {\r\n                    console.error(err);\r\n                    console.error('Unexpected error in dataService: errors should be handled by the dataService Observable');\r\n                    return [];\r\n                })\r\n            )\r\n                .subscribe(results => {\r\n                    this.ctx.searchInitialized = true;\r\n                    this.ctx.searching = false;\r\n                    this.ctx.results = results;\r\n\r\n                    if (this.ctrListAutoMatch && results && results.length === 1 && results[0].title && !isNil(this.term) &&\r\n                        results[0].title.toLocaleLowerCase() === this.term!.toLocaleLowerCase()) {\r\n                        // Do automatch\r\n                        this.completer.onSelected(results[0]);\r\n                        return;\r\n                    }\r\n\r\n                    if (this._initialValue) {\r\n                        this.initialValue = this._initialValue;\r\n                        this._initialValue = null;\r\n                    }\r\n\r\n                    this.refreshTemplate();\r\n\r\n                    if (this.ctrListAutoHighlight) {\r\n                        this.completer.autoHighlightIndex = this.getBestMatchIndex();\r\n                    }\r\n                });\r\n\r\n            if (this._dataService.dataSourceChange) {\r\n                this._dataService.dataSourceChange.subscribe(() => {\r\n                    this.term = null;\r\n                    this.ctx.searchInitialized = false;\r\n                    this.ctx.searching = false;\r\n                    this.ctx.results = [];\r\n                    this.refreshTemplate();\r\n                    this.completer.onDataSourceChange();\r\n                });\r\n            }\r\n        }\r\n    }\r\n\r\n}\r\n"]}