@ux-aspects/ux-aspects
Version:
Open source user interface framework for building modern, responsive, mobile big data applications
112 lines • 19.7 kB
JavaScript
import { ChangeDetectionStrategy, ChangeDetectorRef, Component, EventEmitter, inject, Input, Output } from '@angular/core';
import { Subject } from 'rxjs';
import { takeUntil } from 'rxjs/operators';
import { ColumnSortingDirective, ColumnSortingState } from './column-sorting.directive';
import * as i0 from "@angular/core";
import * as i1 from "@angular/common";
import * as i2 from "../icon/icon.component";
export class ColumnSortingComponent {
constructor() {
this._sorter = inject(ColumnSortingDirective);
this._changeDetector = inject(ChangeDetectorRef);
/** Defines the sorting order of a column: `NoSort`, `Ascending` or `Descending`. */
this.state = ColumnSortingState.NoSort;
/** Determine if a column can have a `NoSort` state */
this.allowNoSort = true;
/** Specifies name of the ascending icon */
this.ascendingIcon = 'ascend';
/** Specifies name of the descending icon */
this.descendingIcon = 'descend';
/**
* Changes the state of the sorting on the column between `NoSort`, `Ascending` and `Descending`.
* This returns an array of objects for each column being sorted containing `key: string` and `state: ColumnSortingState`.
* State can be used to find the current sorting state of the column eg. `(state === ColumnSortingState.Ascending)`.
* The `ColumnSortingOrder` interface has been provided for objects in the array.
*/
this.stateChange = new EventEmitter();
/** Emit whenever the order changes */
this.orderChange = new EventEmitter();
/** Expose the sorting state enum to the view */
this.ColumnSortingState = ColumnSortingState;
/** Unsubscribe from all observables on component destroy */
this._onDestroy$ = new Subject();
}
/** Access the custom sort indicator if one was provided */
get _sortIndicator() {
return this._sorter.sortIndicator;
}
ngOnInit() {
// listen for changes triggered by the directive
this._sorter.events.pipe(takeUntil(this._onDestroy$))
.subscribe(columns => this.updateState(columns));
}
ngOnChanges(changes) {
// if the state input is changed then apply the change
if (changes.state && changes.state.currentValue !== changes.state.previousValue) {
this._sorter.setColumnState(this.key, this.state);
}
}
ngOnDestroy() {
this._onDestroy$.next();
this._onDestroy$.complete();
}
/** Toggle the sorting state of a column - this is designed to be programmatically called by the consuming component */
changeState() {
switch (this.state) {
case ColumnSortingState.Ascending:
this.state = ColumnSortingState.Descending;
break;
case ColumnSortingState.Descending:
this.state = this.allowNoSort ? ColumnSortingState.NoSort : ColumnSortingState.Ascending;
break;
default:
this.state = ColumnSortingState.Ascending;
}
// change detection should be run
this._changeDetector.markForCheck();
// inform parent (internally we use a ReadonlyArray but are returning a standard array to prevent breaking changes to the public API)
return this._sorter.toggleColumn({ key: this.key, state: this.state });
}
/** Update the state based on column order */
updateState(columns) {
// if we are sorting this column then find the matching data
const columnIdx = columns.findIndex(_column => _column.key === this.key);
// if we are not sorting this column then mark it as NoSort
if (columnIdx === -1) {
this.state = ColumnSortingState.NoSort;
}
// only store the number if we have 2 or more columns being sorted
this.order = columns.length < 2 || columnIdx === -1 ? null : columnIdx + 1;
// emit the latest order value
if (typeof this.order === 'number') {
this.orderChange.emit(this.order);
}
// change detection should be run
this._changeDetector.markForCheck();
// Emit the latest change
this.stateChange.emit(this.state);
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.12", ngImport: i0, type: ColumnSortingComponent, deps: [], target: i0.ɵɵFactoryTarget.Component }); }
static { this.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "17.0.0", version: "18.2.12", type: ColumnSortingComponent, selector: "ux-column-sorting", inputs: { state: "state", key: "key", order: "order", allowNoSort: "allowNoSort", ascendingIcon: "ascendingIcon", descendingIcon: "descendingIcon" }, outputs: { stateChange: "stateChange", orderChange: "orderChange" }, exportAs: ["ux-column-sorting"], usesOnChanges: true, ngImport: i0, template: "<div class=\"ux-column-sorting\"\n [class.ux-column-sorting-hidden]=\"state === ColumnSortingState.NoSort\">\n\n <!-- The default sort indicator -->\n @if (!_sortIndicator) {\n <ux-icon\n class=\"ux-column-sorting-icon\"\n [class.column-sorting-icon-hidden]=\"state === ColumnSortingState.NoSort\"\n [name]=\"state === ColumnSortingState.Descending ? descendingIcon : ascendingIcon\">\n </ux-icon>\n <p class=\"ux-column-sorting-number\" aria-hidden=\"true\">{{ order }}</p>\n }\n\n <!-- Custom sort indicator -->\n @if (_sortIndicator) {\n <ng-container\n [ngTemplateOutlet]=\"_sortIndicator\"\n [ngTemplateOutletContext]=\"{ state: state, order: order }\">\n </ng-container>\n }\n\n</div>\n", dependencies: [{ kind: "directive", type: i1.NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet", "ngTemplateOutletInjector"] }, { kind: "component", type: i2.IconComponent, selector: "ux-icon", inputs: ["name", "size", "rotate", "flipHorizontal", "flipVertical"] }], changeDetection: i0.ChangeDetectionStrategy.OnPush }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.12", ngImport: i0, type: ColumnSortingComponent, decorators: [{
type: Component,
args: [{ selector: 'ux-column-sorting', exportAs: 'ux-column-sorting', changeDetection: ChangeDetectionStrategy.OnPush, template: "<div class=\"ux-column-sorting\"\n [class.ux-column-sorting-hidden]=\"state === ColumnSortingState.NoSort\">\n\n <!-- The default sort indicator -->\n @if (!_sortIndicator) {\n <ux-icon\n class=\"ux-column-sorting-icon\"\n [class.column-sorting-icon-hidden]=\"state === ColumnSortingState.NoSort\"\n [name]=\"state === ColumnSortingState.Descending ? descendingIcon : ascendingIcon\">\n </ux-icon>\n <p class=\"ux-column-sorting-number\" aria-hidden=\"true\">{{ order }}</p>\n }\n\n <!-- Custom sort indicator -->\n @if (_sortIndicator) {\n <ng-container\n [ngTemplateOutlet]=\"_sortIndicator\"\n [ngTemplateOutletContext]=\"{ state: state, order: order }\">\n </ng-container>\n }\n\n</div>\n" }]
}], propDecorators: { state: [{
type: Input
}], key: [{
type: Input
}], order: [{
type: Input
}], allowNoSort: [{
type: Input
}], ascendingIcon: [{
type: Input
}], descendingIcon: [{
type: Input
}], stateChange: [{
type: Output
}], orderChange: [{
type: Output
}] } });
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used when multiple columns are being sorted at once */\n    @Input() order: number;\n\n    /** Determine if a column can have a `NoSort` state */\n    @Input() allowNoSort: boolean = true;\n\n    /** Specifies name of the ascending icon */\n    @Input() ascendingIcon: string = 'ascend';\n\n    /** Specifies name of the descending icon */\n    @Input() descendingIcon: string = 'descend';\n\n    /**\n     * Changes the state of the sorting on the column between `NoSort`, `Ascending` and `Descending`.\n     * This returns an array of objects for each column being sorted containing `key: string` and `state: ColumnSortingState`.\n     * State can be used to find the current sorting state of the column eg. `(state === ColumnSortingState.Ascending)`.\n     * The `ColumnSortingOrder` interface has been provided for objects in the array.\n     */\n    @Output() stateChange = new EventEmitter<ColumnSortingState>();\n\n    /** Emit whenever the order changes */\n    @Output() orderChange = new EventEmitter<number>();\n\n    /** Expose the sorting state enum to the view */\n    ColumnSortingState = ColumnSortingState;\n\n    /** Access the custom sort indicator if one was provided */\n    get _sortIndicator(): TemplateRef<ColumnSortingIndicatorContext> {\n        return this._sorter.sortIndicator;\n    }\n\n    /** Unsubscribe from all observables on component destroy */\n    private readonly _onDestroy$ = new Subject<void>();\n\n    ngOnInit(): void {\n        // listen for changes triggered by the directive\n        this._sorter.events.pipe(takeUntil(this._onDestroy$))\n            .subscribe(columns => this.updateState(columns));\n    }\n\n    ngOnChanges(changes: SimpleChanges): void {\n        // if the state input is changed then apply the change\n        if (changes.state && changes.state.currentValue !== changes.state.previousValue) {\n            this._sorter.setColumnState(this.key, this.state);\n        }\n    }\n\n    ngOnDestroy(): void {\n        this._onDestroy$.next();\n        this._onDestroy$.complete();\n    }\n\n    /** Toggle the sorting state of a column - this is designed to be programmatically called by the consuming component */\n    changeState(): ColumnSortingOrder[] {\n\n        switch (this.state) {\n\n            case ColumnSortingState.Ascending:\n                this.state = ColumnSortingState.Descending;\n                break;\n\n            case ColumnSortingState.Descending:\n                this.state = this.allowNoSort ? ColumnSortingState.NoSort : ColumnSortingState.Ascending;\n                break;\n\n            default:\n                this.state = ColumnSortingState.Ascending;\n        }\n\n        // change detection should be run\n        this._changeDetector.markForCheck();\n\n        // inform parent (internally we use a ReadonlyArray but are returning a standard array to prevent breaking changes to the public API)\n        return this._sorter.toggleColumn({ key: this.key, state: this.state }) as ColumnSortingOrder[];\n    }\n\n    /** Update the state based on column order */\n    private updateState(columns: ReadonlyArray<ColumnSortingOrder>): void {\n        // if we are sorting this column then find the matching data\n        const columnIdx = columns.findIndex(_column => _column.key === this.key);\n\n        // if we are not sorting this column then mark it as NoSort\n        if (columnIdx === -1) {\n            this.state = ColumnSortingState.NoSort;\n        }\n\n        // only store the number if we have 2 or more columns being sorted\n        this.order = columns.length < 2 || columnIdx === -1 ? null : columnIdx + 1;\n\n        // emit the latest order value\n        if (typeof this.order === 'number') {\n            this.orderChange.emit(this.order);\n        }\n\n        // change detection should be run\n        this._changeDetector.markForCheck();\n\n        // Emit the latest change\n        this.stateChange.emit(this.state);\n    }\n}\n","<div class=\"ux-column-sorting\"\n  [class.ux-column-sorting-hidden]=\"state === ColumnSortingState.NoSort\">\n\n  <!-- The default sort indicator -->\n  @if (!_sortIndicator) {\n    <ux-icon\n      class=\"ux-column-sorting-icon\"\n      [class.column-sorting-icon-hidden]=\"state === ColumnSortingState.NoSort\"\n      [name]=\"state === ColumnSortingState.Descending ? descendingIcon : ascendingIcon\">\n    </ux-icon>\n    <p class=\"ux-column-sorting-number\" aria-hidden=\"true\">{{ order }}</p>\n  }\n\n  <!-- Custom sort indicator -->\n  @if (_sortIndicator) {\n    <ng-container\n      [ngTemplateOutlet]=\"_sortIndicator\"\n      [ngTemplateOutletContext]=\"{ state: state, order: order }\">\n    </ng-container>\n  }\n\n</div>\n"]}