| /** |
| * @license |
| * Copyright Google LLC All Rights Reserved. |
| * |
| * Use of this source code is governed by an MIT-style license that can be |
| * found in the LICENSE file at https://angular.io/license |
| */ |
| import { Observable, of, Subject } from 'rxjs'; |
| import { Injectable, ɵɵdefineInjectable } from '@angular/core'; |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| /** |
| * @abstract |
| * @template T |
| */ |
| class DataSource { |
| } |
| /** |
| * Checks whether an object is a data source. |
| * @param {?} value |
| * @return {?} |
| */ |
| function isDataSource(value) { |
| // Check if the value is a DataSource by observing if it has a connect function. Cannot |
| // be checked as an `instanceof DataSource` since people could create their own sources |
| // that match the interface, but don't extend DataSource. |
| return value && typeof value.connect === 'function'; |
| } |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| /** |
| * DataSource wrapper for a native array. |
| * @template T |
| */ |
| class ArrayDataSource extends DataSource { |
| /** |
| * @param {?} _data |
| */ |
| constructor(_data) { |
| super(); |
| this._data = _data; |
| } |
| /** |
| * @return {?} |
| */ |
| connect() { |
| return this._data instanceof Observable ? this._data : of(this._data); |
| } |
| /** |
| * @return {?} |
| */ |
| disconnect() { } |
| } |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| /** |
| * Class to be used to power selecting one or more options from a list. |
| * @template T |
| */ |
| class SelectionModel { |
| /** |
| * @param {?=} _multiple |
| * @param {?=} initiallySelectedValues |
| * @param {?=} _emitChanges |
| */ |
| constructor(_multiple = false, initiallySelectedValues, _emitChanges = true) { |
| this._multiple = _multiple; |
| this._emitChanges = _emitChanges; |
| /** |
| * Currently-selected values. |
| */ |
| this._selection = new Set(); |
| /** |
| * Keeps track of the deselected options that haven't been emitted by the change event. |
| */ |
| this._deselectedToEmit = []; |
| /** |
| * Keeps track of the selected options that haven't been emitted by the change event. |
| */ |
| this._selectedToEmit = []; |
| /** |
| * Event emitted when the value has changed. |
| */ |
| this.changed = new Subject(); |
| /** |
| * Event emitted when the value has changed. |
| * @deprecated Use `changed` instead. |
| * \@breaking-change 8.0.0 To be changed to `changed` |
| */ |
| this.onChange = this.changed; |
| if (initiallySelectedValues && initiallySelectedValues.length) { |
| if (_multiple) { |
| initiallySelectedValues.forEach((/** |
| * @param {?} value |
| * @return {?} |
| */ |
| value => this._markSelected(value))); |
| } |
| else { |
| this._markSelected(initiallySelectedValues[0]); |
| } |
| // Clear the array in order to avoid firing the change event for preselected values. |
| this._selectedToEmit.length = 0; |
| } |
| } |
| /** |
| * Selected values. |
| * @return {?} |
| */ |
| get selected() { |
| if (!this._selected) { |
| this._selected = Array.from(this._selection.values()); |
| } |
| return this._selected; |
| } |
| /** |
| * Selects a value or an array of values. |
| * @param {...?} values |
| * @return {?} |
| */ |
| select(...values) { |
| this._verifyValueAssignment(values); |
| values.forEach((/** |
| * @param {?} value |
| * @return {?} |
| */ |
| value => this._markSelected(value))); |
| this._emitChangeEvent(); |
| } |
| /** |
| * Deselects a value or an array of values. |
| * @param {...?} values |
| * @return {?} |
| */ |
| deselect(...values) { |
| this._verifyValueAssignment(values); |
| values.forEach((/** |
| * @param {?} value |
| * @return {?} |
| */ |
| value => this._unmarkSelected(value))); |
| this._emitChangeEvent(); |
| } |
| /** |
| * Toggles a value between selected and deselected. |
| * @param {?} value |
| * @return {?} |
| */ |
| toggle(value) { |
| this.isSelected(value) ? this.deselect(value) : this.select(value); |
| } |
| /** |
| * Clears all of the selected values. |
| * @return {?} |
| */ |
| clear() { |
| this._unmarkAll(); |
| this._emitChangeEvent(); |
| } |
| /** |
| * Determines whether a value is selected. |
| * @param {?} value |
| * @return {?} |
| */ |
| isSelected(value) { |
| return this._selection.has(value); |
| } |
| /** |
| * Determines whether the model does not have a value. |
| * @return {?} |
| */ |
| isEmpty() { |
| return this._selection.size === 0; |
| } |
| /** |
| * Determines whether the model has a value. |
| * @return {?} |
| */ |
| hasValue() { |
| return !this.isEmpty(); |
| } |
| /** |
| * Sorts the selected values based on a predicate function. |
| * @param {?=} predicate |
| * @return {?} |
| */ |
| sort(predicate) { |
| if (this._multiple && this.selected) { |
| (/** @type {?} */ (this._selected)).sort(predicate); |
| } |
| } |
| /** |
| * Gets whether multiple values can be selected. |
| * @return {?} |
| */ |
| isMultipleSelection() { |
| return this._multiple; |
| } |
| /** |
| * Emits a change event and clears the records of selected and deselected values. |
| * @private |
| * @return {?} |
| */ |
| _emitChangeEvent() { |
| // Clear the selected values so they can be re-cached. |
| this._selected = null; |
| if (this._selectedToEmit.length || this._deselectedToEmit.length) { |
| this.changed.next({ |
| source: this, |
| added: this._selectedToEmit, |
| removed: this._deselectedToEmit |
| }); |
| this._deselectedToEmit = []; |
| this._selectedToEmit = []; |
| } |
| } |
| /** |
| * Selects a value. |
| * @private |
| * @param {?} value |
| * @return {?} |
| */ |
| _markSelected(value) { |
| if (!this.isSelected(value)) { |
| if (!this._multiple) { |
| this._unmarkAll(); |
| } |
| this._selection.add(value); |
| if (this._emitChanges) { |
| this._selectedToEmit.push(value); |
| } |
| } |
| } |
| /** |
| * Deselects a value. |
| * @private |
| * @param {?} value |
| * @return {?} |
| */ |
| _unmarkSelected(value) { |
| if (this.isSelected(value)) { |
| this._selection.delete(value); |
| if (this._emitChanges) { |
| this._deselectedToEmit.push(value); |
| } |
| } |
| } |
| /** |
| * Clears out the selected values. |
| * @private |
| * @return {?} |
| */ |
| _unmarkAll() { |
| if (!this.isEmpty()) { |
| this._selection.forEach((/** |
| * @param {?} value |
| * @return {?} |
| */ |
| value => this._unmarkSelected(value))); |
| } |
| } |
| /** |
| * Verifies the value assignment and throws an error if the specified value array is |
| * including multiple values while the selection model is not supporting multiple values. |
| * @private |
| * @param {?} values |
| * @return {?} |
| */ |
| _verifyValueAssignment(values) { |
| if (values.length > 1 && !this._multiple) { |
| throw getMultipleValuesInSingleSelectionError(); |
| } |
| } |
| } |
| /** |
| * Returns an error that reports that multiple values are passed into a selection model |
| * with a single value. |
| * \@docs-private |
| * @return {?} |
| */ |
| function getMultipleValuesInSingleSelectionError() { |
| return Error('Cannot pass multiple values into SelectionModel with single-value mode.'); |
| } |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| /** |
| * Class to coordinate unique selection based on name. |
| * Intended to be consumed as an Angular service. |
| * This service is needed because native radio change events are only fired on the item currently |
| * being selected, and we still need to uncheck the previous selection. |
| * |
| * This service does not *store* any IDs and names because they may change at any time, so it is |
| * less error-prone if they are simply passed through when the events occur. |
| */ |
| class UniqueSelectionDispatcher { |
| constructor() { |
| this._listeners = []; |
| } |
| /** |
| * Notify other items that selection for the given name has been set. |
| * @param {?} id ID of the item. |
| * @param {?} name Name of the item. |
| * @return {?} |
| */ |
| notify(id, name) { |
| for (let listener of this._listeners) { |
| listener(id, name); |
| } |
| } |
| /** |
| * Listen for future changes to item selection. |
| * @param {?} listener |
| * @return {?} Function used to deregister listener |
| */ |
| listen(listener) { |
| this._listeners.push(listener); |
| return (/** |
| * @return {?} |
| */ |
| () => { |
| this._listeners = this._listeners.filter((/** |
| * @param {?} registered |
| * @return {?} |
| */ |
| (registered) => { |
| return listener !== registered; |
| })); |
| }); |
| } |
| /** |
| * @return {?} |
| */ |
| ngOnDestroy() { |
| this._listeners = []; |
| } |
| } |
| UniqueSelectionDispatcher.decorators = [ |
| { type: Injectable, args: [{ providedIn: 'root' },] }, |
| ]; |
| /** @nocollapse */ UniqueSelectionDispatcher.ngInjectableDef = ɵɵdefineInjectable({ factory: function UniqueSelectionDispatcher_Factory() { return new UniqueSelectionDispatcher(); }, token: UniqueSelectionDispatcher, providedIn: "root" }); |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| /** |
| * @fileoverview added by tsickle |
| * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| export { UniqueSelectionDispatcher, ArrayDataSource, isDataSource, DataSource, getMultipleValuesInSingleSelectionError, SelectionModel }; |
| //# sourceMappingURL=collections.js.map |
