@clr/angular
Version:
Angular components for Clarity
53 lines • 6.47 kB
JavaScript
/*
* Copyright (c) 2016-2023 VMware, Inc. All Rights Reserved.
* This software is released under MIT license.
* The full license information can be found in LICENSE in the root directory of this project.
*/
import { Injectable } from '@angular/core';
import { ALL_COLUMN_CHANGES } from '../enums/column-changes.enum';
import * as i0 from "@angular/core";
export class ColumnsService {
constructor() {
this.columns = [];
this._cache = [];
}
get columnStates() {
return this.columns.map(column => column.value);
}
get hasHideableColumns() {
return this.columnStates.filter(state => state.hideable).length > 0;
}
cache() {
this._cache = this.columns.map(subject => {
const value = { ...subject.value };
delete value.changes;
return value;
});
}
hasCache() {
return !!this._cache.length;
}
resetToLastCache() {
this._cache.forEach((state, index) => {
// Just emit the exact value from the cache
this.columns[index].next({ ...state, changes: ALL_COLUMN_CHANGES });
});
this._cache = [];
}
// Helper method to emit a change to a column only when there is an actual diff to process for that column
emitStateChangeAt(columnIndex, diff) {
if (!this.columns[columnIndex]) {
return;
}
this.emitStateChange(this.columns[columnIndex], diff);
}
emitStateChange(column, diff) {
column.next({ ...column.value, ...diff });
}
}
ColumnsService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.2", ngImport: i0, type: ColumnsService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
ColumnsService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.2", ngImport: i0, type: ColumnsService });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.2", ngImport: i0, type: ColumnsService, decorators: [{
type: Injectable
}] });
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