@neocomplexx/ngx-neo-completer
Version:
This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 7.0.5.
243 lines • 29.9 kB
JavaScript
import { __decorate, __metadata, __param } from "tslib";
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';
export class CtrListContext {
constructor(results, searching, searchInitialized, isOpen) {
this.results = results;
this.searching = searching;
this.searchInitialized = searchInitialized;
this.isOpen = isOpen;
}
}
let CtrList =
// tslint:disable:no-non-null-assertion
// tslint:disable-next-line:directive-class-suffix
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(() => {
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.ctorParameters = () => [
{ type: CtrCompleter, decorators: [{ type: Host }] },
{ type: TemplateRef },
{ type: ViewContainerRef },
{ type: ChangeDetectorRef }
];
__decorate([
Input(),
__metadata("design:type", Object)
], CtrList.prototype, "ctrListMinSearchLength", void 0);
__decorate([
Input(),
__metadata("design:type", Object)
], CtrList.prototype, "ctrListPause", void 0);
__decorate([
Input(),
__metadata("design:type", Object)
], CtrList.prototype, "ctrListAutoMatch", void 0);
__decorate([
Input(),
__metadata("design:type", Object)
], CtrList.prototype, "ctrListAutoHighlight", void 0);
__decorate([
Input(),
__metadata("design:type", Object)
], CtrList.prototype, "ctrListDisplaySearching", void 0);
__decorate([
Input('ctrList'),
__metadata("design:type", Object),
__metadata("design:paramtypes", [Object])
], CtrList.prototype, "dataService", null);
__decorate([
Input('ctrListInitialValue'),
__metadata("design:type", Object),
__metadata("design:paramtypes", [Object])
], CtrList.prototype, "initialValue", null);
CtrList = __decorate([
Directive({
// tslint:disable-next-line:directive-selector
selector: '[ctrList]',
})
// tslint:disable:no-non-null-assertion
// tslint:disable-next-line:directive-class-suffix
,
__param(0, Host()),
__metadata("design:paramtypes", [CtrCompleter,
TemplateRef,
ViewContainerRef,
ChangeDetectorRef])
], CtrList);
export { CtrList };
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{ ChangeDetectorRef, Directive, Host, Input, TemplateRef, ViewContainerRef } from '@angular/core';\nimport type { EmbeddedViewRef, OnInit } from '@angular/core';\nimport { Subscription, timer } from 'rxjs';\nimport { catchError, take } from 'rxjs/operators';\n\nimport { CtrCompleter } from './ctr-completer';\nimport type { CompleterList } from './ctr-completer';\nimport { CompleterData } from '../services/completer-data';\nimport { CompleterItem } from '../components/completer-item';\nimport { MIN_SEARCH_LENGTH, PAUSE, CLEAR_TIMEOUT, isNil } from '../globals';\n\nexport class CtrListContext {\n    constructor(\n        public results: CompleterItem[] | null,\n        public searching: boolean,\n        public searchInitialized: boolean,\n        public isOpen: boolean\n    ) { }\n}\n\n@Directive({\n    // tslint:disable-next-line:directive-selector\n    selector: '[ctrList]',\n})\n// tslint:disable:no-non-null-assertion\n// tslint:disable-next-line:directive-class-suffix\nexport class CtrList implements OnInit, CompleterList {\n    @Input() public ctrListMinSearchLength = MIN_SEARCH_LENGTH;\n    @Input() public ctrListPause = PAUSE;\n    @Input() public ctrListAutoMatch = false;\n    @Input() public ctrListAutoHighlight = false;\n    @Input() public ctrListDisplaySearching = true;\n\n    private _dataService: CompleterData;\n    // private results: CompleterItem[] = [];\n    private term: string | null = null;\n    // private searching = false;\n    private searchTimer: Subscription | null = null;\n    private clearTimer: Subscription | null = null;\n    private ctx = new CtrListContext([], false, false, false);\n    private _initialValue: any = null;\n    private viewRef: EmbeddedViewRef<CtrListContext> | null = null;\n\n    constructor(\n        @Host() private completer: CtrCompleter,\n        private templateRef: TemplateRef<CtrListContext>,\n        private viewContainer: ViewContainerRef,\n        private cd: ChangeDetectorRef) { }\n\n    public ngOnInit() {\n        this.completer.registerList(this);\n        this.viewRef = this.viewContainer.createEmbeddedView(\n            this.templateRef,\n            new CtrListContext([], false, false, false)\n        );\n    }\n\n    @Input('ctrList')\n    public set dataService(newService: CompleterData) {\n        this._dataService = newService;\n        this.dataServiceSubscribe();\n    }\n\n    @Input('ctrListInitialValue')\n    public set initialValue(value: any) {\n        if (this._dataService && typeof this._dataService.convertToItem === 'function') {\n            setTimeout(() => {\n                const initialItem = this._dataService.convertToItem!(value);\n                if (initialItem) {\n                    this.completer.onSelected(initialItem, false);\n                }\n            });\n        } else if (!this._dataService) {\n            this._initialValue = value;\n        }\n    }\n\n    public search(term: string) {\n        if (!isNil(term) && term.length >= this.ctrListMinSearchLength && this.term !== term) {\n            if (this.searchTimer) {\n                this.searchTimer.unsubscribe();\n                this.searchTimer = null;\n            }\n            if (!this.ctx.searching) {\n                if (this.ctrListDisplaySearching) {\n                    this.ctx.results = [];\n                }\n                this.ctx.searching = true;\n                this.ctx.searchInitialized = true;\n                this.refreshTemplate();\n            }\n            if (this.clearTimer) {\n                this.clearTimer.unsubscribe();\n            }\n            this.searchTimer = timer(this.ctrListPause).pipe(take(1)).subscribe(() => {\n                this.searchTimerComplete(term);\n            });\n        } else if (!isNil(term) && term.length < this.ctrListMinSearchLength) {\n            this.clear();\n            this.term = '';\n        }\n    }\n\n    public clear() {\n        if (this.searchTimer) {\n            this.searchTimer.unsubscribe();\n        }\n        this.clearTimer = timer(CLEAR_TIMEOUT).pipe(take(1)).subscribe(() => {\n            this._clear();\n        });\n    }\n\n    public open() {\n        if (!this.ctx.searchInitialized) {\n            this.search('');\n        }\n        this.refreshTemplate();\n    }\n\n    public isOpen(open: boolean) {\n        this.ctx.isOpen = open;\n    }\n\n    private _clear() {\n        if (this.searchTimer) {\n            this.searchTimer.unsubscribe();\n            this.searchTimer = null;\n        }\n        if (this.dataService) {\n            this.dataService.cancel();\n        }\n\n        this.viewContainer.clear();\n        this.viewRef = null;\n    }\n\n    private searchTimerComplete(term: string) {\n        // Begin the search\n        if (isNil(term) || term.length < this.ctrListMinSearchLength) {\n            this.ctx.searching = false;\n            return;\n        }\n        this.term = term;\n        this._dataService.search(term);\n    }\n\n    private refreshTemplate() {\n        // create the template if it doesn't exist\n        if (!this.viewRef) {\n            this.viewRef = this.viewContainer.createEmbeddedView(\n                this.templateRef,\n                this.ctx\n            );\n        } else if (!this.viewRef.destroyed) {\n            // refresh the template\n            this.viewRef!.context.isOpen = this.ctx.isOpen;\n            this.viewRef!.context.results = this.ctx.results;\n            this.viewRef!.context.searching = this.ctx.searching;\n            this.viewRef!.context.searchInitialized = this.ctx.searchInitialized;\n            this.viewRef.detectChanges();\n        }\n        this.cd.markForCheck();\n    }\n\n    private getBestMatchIndex() {\n        if (!this.ctx.results || !this.term) {\n            return null;\n        }\n\n        // First try to find the exact term\n        let bestMatch = this.ctx.results.findIndex(item => item.title.toLowerCase() === this.term!.toLocaleLowerCase());\n        // If not try to find the first item that starts with the term\n        if (bestMatch < 0) {\n            bestMatch = this.ctx.results.findIndex(item => item.title.toLowerCase().startsWith(this.term!.toLocaleLowerCase()));\n        }\n        // If not try to find the first item that includes the term\n        if (bestMatch < 0) {\n            bestMatch = this.ctx.results.findIndex(item => item.title.toLowerCase().includes(this.term!.toLocaleLowerCase()));\n        }\n\n        return bestMatch < 0 ? null : bestMatch;\n    }\n\n    private dataServiceSubscribe() {\n        if (this._dataService) {\n            this._dataService.pipe(\n                catchError(err => {\n                    console.error(err);\n                    console.error('Unexpected error in dataService: errors should be handled by the dataService Observable');\n                    return [];\n                })\n            )\n                .subscribe(results => {\n                    this.ctx.searchInitialized = true;\n                    this.ctx.searching = false;\n                    this.ctx.results = results;\n\n                    if (this.ctrListAutoMatch && results && results.length === 1 && results[0].title && !isNil(this.term) &&\n                        results[0].title.toLocaleLowerCase() === this.term!.toLocaleLowerCase()) {\n                        // Do automatch\n                        this.completer.onSelected(results[0]);\n                        return;\n                    }\n\n                    if (this._initialValue) {\n                        this.initialValue = this._initialValue;\n                        this._initialValue = null;\n                    }\n\n                    this.refreshTemplate();\n\n                    if (this.ctrListAutoHighlight) {\n                        this.completer.autoHighlightIndex = this.getBestMatchIndex();\n                    }\n                });\n\n            if (this._dataService.dataSourceChange) {\n                this._dataService.dataSourceChange.subscribe(() => {\n                    this.term = null;\n                    this.ctx.searchInitialized = false;\n                    this.ctx.searching = false;\n                    this.ctx.results = [];\n                    this.refreshTemplate();\n                    this.completer.onDataSourceChange();\n                });\n            }\n        }\n    }\n\n}\n"]}