@neocomplexx/ngx-neo-completer-mat
Version:
172 lines • 23.1 kB
JavaScript
import { Directive, ElementRef, Host, HostListener } from '@angular/core';
import { CtrCompleter } from './ctr-completer';
import { isNil } from '../globals';
import * as i0 from "@angular/core";
import * as i1 from "./ctr-completer";
export class CtrRowItem {
constructor(row, index) {
this.row = row;
this.index = index;
}
}
// tslint:disable-next-line:directive-class-suffix
export class CtrDropdown {
constructor(completer, el) {
this.completer = completer;
this.el = el;
this.rows = [];
this._rowMouseDown = false;
this.completer.registerDropdown(this);
}
ngOnDestroy() {
this.completer.registerDropdown(null);
}
ngAfterViewInit() {
const css = getComputedStyle(this.el.nativeElement);
const autoHighlightIndex = this.completer.autoHighlightIndex;
this.isScrollOn = !!css.maxHeight && css.overflowY === 'auto';
if (autoHighlightIndex) {
setTimeout(() => {
this.highlightRow(autoHighlightIndex);
}, 0);
}
}
onMouseDown(event) {
// Support for canceling blur on IE (issue #158)
if (!this._rowMouseDown) {
this.completer.cancelBlur(true);
setTimeout(() => {
this.completer.cancelBlur(false);
}, 0);
}
else {
this._rowMouseDown = false;
}
}
registerRow(row) {
const arrIndex = this.rows.findIndex(_row => _row.index === row.index);
if (arrIndex >= 0) {
this.rows[arrIndex] = row;
}
else {
this.rows.push(row);
}
}
unregisterRow(rowIndex) {
const arrIndex = this.rows.findIndex(_row => _row.index === rowIndex);
this.rows.splice(arrIndex, 1);
if (this.currHighlighted && rowIndex === this.currHighlighted.index) {
this.highlightRow(null);
}
}
highlightRow(index) {
const highlighted = this.rows.find(row => row.index === index);
// tslint:disable-next-line:no-non-null-assertion
if (isNil(index) || index < 0) {
if (this.currHighlighted) {
this.currHighlighted.row.setHighlighted(false);
}
this.currHighlighted = undefined;
this.completer.onHighlighted(null);
return;
}
if (!highlighted) {
return;
}
if (this.currHighlighted) {
this.currHighlighted.row.setHighlighted(false);
}
this.currHighlighted = highlighted;
this.currHighlighted.row.setHighlighted(true);
this.completer.onHighlighted(this.currHighlighted.row.getDataItem());
if (this.isScrollOn && this.currHighlighted) {
const rowTop = this.dropdownRowTop();
if (!rowTop) {
return;
}
if (rowTop < 0) {
this.dropdownScrollTopTo(rowTop - 1);
}
else {
const row = this.currHighlighted.row.getNativeElement();
if (this.dropdownHeight() < row.getBoundingClientRect().bottom) {
this.dropdownScrollTopTo(this.dropdownRowOffsetHeight(row));
if (this.el.nativeElement.getBoundingClientRect().bottom - this.dropdownRowOffsetHeight(row) <
row.getBoundingClientRect().top) {
this.dropdownScrollTopTo(row.getBoundingClientRect().top -
(this.el.nativeElement.getBoundingClientRect().top +
parseInt(getComputedStyle(this.el.nativeElement).paddingTop, 10)));
}
}
}
}
}
clear() {
this.rows = [];
}
onSelected(item) {
this.completer.onSelected(item);
}
rowMouseDown() {
this._rowMouseDown = true;
}
selectCurrent() {
if (this.currHighlighted) {
this.onSelected(this.currHighlighted.row.getDataItem());
}
else if (this.rows.length > 0) {
this.onSelected(this.rows[0].row.getDataItem());
}
}
nextRow() {
let nextRowIndex = 0;
if (this.currHighlighted) {
nextRowIndex = this.currHighlighted.index + 1;
}
this.highlightRow(nextRowIndex);
}
prevRow() {
let nextRowIndex = -1;
if (this.currHighlighted) {
nextRowIndex = this.currHighlighted.index - 1;
}
this.highlightRow(nextRowIndex);
}
dropdownScrollTopTo(offset) {
this.el.nativeElement.scrollTop = this.el.nativeElement.scrollTop + offset;
}
dropdownRowTop() {
if (!this.currHighlighted) {
return;
}
return this.currHighlighted.row.getNativeElement().getBoundingClientRect().top -
(this.el.nativeElement.getBoundingClientRect().top +
parseInt(getComputedStyle(this.el.nativeElement).paddingTop, 10));
}
dropdownHeight() {
return this.el.nativeElement.getBoundingClientRect().top +
parseInt(getComputedStyle(this.el.nativeElement).maxHeight, 10);
}
dropdownRowOffsetHeight(row) {
const css = getComputedStyle(row.parentElement);
return row.parentElement.offsetHeight +
parseInt(css.marginTop, 10) + parseInt(css.marginBottom, 10);
}
}
CtrDropdown.ɵfac = function CtrDropdown_Factory(t) { return new (t || CtrDropdown)(i0.ɵɵdirectiveInject(i1.CtrCompleter, 1), i0.ɵɵdirectiveInject(i0.ElementRef)); };
CtrDropdown.ɵdir = i0.ɵɵdefineDirective({ type: CtrDropdown, selectors: [["", "ctrDropdown", ""]], hostBindings: function CtrDropdown_HostBindings(rf, ctx) { if (rf & 1) {
i0.ɵɵlistener("mousedown", function CtrDropdown_mousedown_HostBindingHandler($event) { return ctx.onMouseDown($event); });
} } });
/*@__PURE__*/ (function () { i0.ɵsetClassMetadata(CtrDropdown, [{
type: Directive,
args: [{
// tslint:disable-next-line:directive-selector
selector: '[ctrDropdown]',
}]
}], function () { return [{ type: i1.CtrCompleter, decorators: [{
type: Host
}] }, { type: i0.ElementRef }]; }, { onMouseDown: [{
type: HostListener,
args: ['mousedown', ['$event']]
}] }); })();
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{ Directive, ElementRef, Host, HostListener } from '@angular/core';\r\nimport type { AfterViewInit, OnDestroy } from '@angular/core';\r\n\r\nimport { CompleterItem } from '../components/completer-item';\r\nimport { CtrCompleter } from './ctr-completer';\r\nimport type { CompleterDropdown } from './ctr-completer';\r\nimport { isNil } from '../globals';\r\n\r\n\r\nexport interface CtrRowElement {\r\n    setHighlighted(selected: boolean): void;\r\n    getNativeElement(): any;\r\n    getDataItem(): CompleterItem;\r\n}\r\n\r\nexport class CtrRowItem {\r\n    constructor(public row: CtrRowElement, public index: number) { }\r\n}\r\n\r\n@Directive({\r\n    // tslint:disable-next-line:directive-selector\r\n    selector: '[ctrDropdown]',\r\n})\r\n// tslint:disable-next-line:directive-class-suffix\r\nexport class CtrDropdown implements CompleterDropdown, OnDestroy, AfterViewInit {\r\n\r\n    private rows: CtrRowItem[] = [];\r\n    private currHighlighted: CtrRowItem | undefined;\r\n    private isScrollOn: boolean;\r\n    private _rowMouseDown = false;\r\n\r\n    constructor(@Host() private completer: CtrCompleter, private el: ElementRef) {\r\n        this.completer.registerDropdown(this);\r\n    }\r\n\r\n    public ngOnDestroy() {\r\n        this.completer.registerDropdown(null);\r\n    }\r\n\r\n    public ngAfterViewInit() {\r\n        const css = getComputedStyle(this.el.nativeElement);\r\n        const autoHighlightIndex = this.completer.autoHighlightIndex;\r\n\r\n        this.isScrollOn = !!css.maxHeight && css.overflowY === 'auto';\r\n        if (autoHighlightIndex) {\r\n            setTimeout(\r\n                () => {\r\n                    this.highlightRow(autoHighlightIndex);\r\n                },\r\n                0\r\n            );\r\n        }\r\n    }\r\n\r\n    @HostListener('mousedown', ['$event']) public onMouseDown(event: any) {\r\n        // Support for canceling blur on IE (issue #158)\r\n        if (!this._rowMouseDown) {\r\n            this.completer.cancelBlur(true);\r\n            setTimeout(\r\n                () => {\r\n                    this.completer.cancelBlur(false);\r\n                },\r\n                0\r\n            );\r\n        } else {\r\n            this._rowMouseDown = false;\r\n        }\r\n    }\r\n\r\n    public registerRow(row: CtrRowItem) {\r\n        const arrIndex = this.rows.findIndex(_row => _row.index === row.index);\r\n        if (arrIndex >= 0) {\r\n            this.rows[arrIndex] = row;\r\n        } else {\r\n            this.rows.push(row);\r\n        }\r\n    }\r\n\r\n    public unregisterRow(rowIndex: number) {\r\n        const arrIndex = this.rows.findIndex(_row => _row.index === rowIndex);\r\n        this.rows.splice(arrIndex, 1);\r\n        if (this.currHighlighted && rowIndex === this.currHighlighted.index) {\r\n            this.highlightRow(null);\r\n        }\r\n    }\r\n\r\n    public highlightRow(index: number | null) {\r\n        const highlighted = this.rows.find(row => row.index === index);\r\n\r\n        // tslint:disable-next-line:no-non-null-assertion\r\n        if (isNil(index) || index! < 0) {\r\n            if (this.currHighlighted) {\r\n                this.currHighlighted.row.setHighlighted(false);\r\n            }\r\n            this.currHighlighted = undefined;\r\n            this.completer.onHighlighted(null);\r\n            return;\r\n        }\r\n\r\n        if (!highlighted) {\r\n            return;\r\n        }\r\n\r\n        if (this.currHighlighted) {\r\n            this.currHighlighted.row.setHighlighted(false);\r\n        }\r\n\r\n        this.currHighlighted = highlighted;\r\n        this.currHighlighted.row.setHighlighted(true);\r\n        this.completer.onHighlighted(this.currHighlighted.row.getDataItem());\r\n\r\n        if (this.isScrollOn && this.currHighlighted) {\r\n            const rowTop = this.dropdownRowTop();\r\n\r\n            if (!rowTop) {\r\n                return;\r\n            }\r\n\r\n            if (rowTop < 0) {\r\n                this.dropdownScrollTopTo(rowTop - 1);\r\n            } else {\r\n                const row = this.currHighlighted.row.getNativeElement();\r\n                if (this.dropdownHeight() < row.getBoundingClientRect().bottom) {\r\n                    this.dropdownScrollTopTo(this.dropdownRowOffsetHeight(row));\r\n                    if (this.el.nativeElement.getBoundingClientRect().bottom - this.dropdownRowOffsetHeight(row) <\r\n                        row.getBoundingClientRect().top) {\r\n                        this.dropdownScrollTopTo(row.getBoundingClientRect().top -\r\n                            (this.el.nativeElement.getBoundingClientRect().top +\r\n                                parseInt(getComputedStyle(this.el.nativeElement).paddingTop as string, 10)));\r\n                    }\r\n                }\r\n            }\r\n        }\r\n    }\r\n\r\n    public clear() {\r\n        this.rows = [];\r\n    }\r\n\r\n    public onSelected(item: CompleterItem) {\r\n        this.completer.onSelected(item);\r\n    }\r\n\r\n    public rowMouseDown() {\r\n        this._rowMouseDown = true;\r\n    }\r\n\r\n    public selectCurrent() {\r\n        if (this.currHighlighted) {\r\n            this.onSelected(this.currHighlighted.row.getDataItem());\r\n        } else if (this.rows.length > 0) {\r\n            this.onSelected(this.rows[0].row.getDataItem());\r\n        }\r\n\r\n    }\r\n\r\n    public nextRow() {\r\n        let nextRowIndex = 0;\r\n\r\n        if (this.currHighlighted) {\r\n            nextRowIndex = this.currHighlighted.index + 1;\r\n        }\r\n\r\n        this.highlightRow(nextRowIndex);\r\n    }\r\n\r\n    public prevRow() {\r\n        let nextRowIndex = -1;\r\n\r\n        if (this.currHighlighted) {\r\n            nextRowIndex = this.currHighlighted.index - 1;\r\n        }\r\n\r\n        this.highlightRow(nextRowIndex);\r\n    }\r\n\r\n    private dropdownScrollTopTo(offset: any) {\r\n        this.el.nativeElement.scrollTop = this.el.nativeElement.scrollTop + offset;\r\n    }\r\n\r\n    private dropdownRowTop() {\r\n        if (!this.currHighlighted) {\r\n            return;\r\n        }\r\n\r\n        return this.currHighlighted.row.getNativeElement().getBoundingClientRect().top -\r\n            (this.el.nativeElement.getBoundingClientRect().top +\r\n                parseInt(getComputedStyle(this.el.nativeElement).paddingTop as string, 10));\r\n    }\r\n\r\n    private dropdownHeight() {\r\n        return this.el.nativeElement.getBoundingClientRect().top +\r\n            parseInt(getComputedStyle(this.el.nativeElement).maxHeight as string, 10);\r\n    }\r\n\r\n    private dropdownRowOffsetHeight(row: any) {\r\n        const css = getComputedStyle(row.parentElement);\r\n        return row.parentElement.offsetHeight +\r\n            parseInt(css.marginTop as string, 10) + parseInt(css.marginBottom as string, 10);\r\n    }\r\n}\r\n"]}