md2/core/coordination/unique-selection-dispatcher.js

Angular2 based Material Design components, directives and services are Accordion, Autocomplete, Chips(Tags), Collapse, Colorpicker, Data Table, Datepicker, Dialog(Modal), Menu, Multiselect, Select, Tabs, Tags(Chips), Toast and Tooltip.

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    return c > 3 && r && Object.defineProperty(target, key, r), r;
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import { Injectable, Optional, SkipSelf } from '@angular/core';
/**
 * 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.
 */
var UniqueSelectionDispatcher = (function () {
    function UniqueSelectionDispatcher() {
        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.
     */
    UniqueSelectionDispatcher.prototype.notify = function (id, name) {
        for (var _i = 0, _a = this._listeners; _i < _a.length; _i++) {
            var listener = _a[_i];
            listener(id, name);
        }
    };
    /** Listen for future changes to item selection. */
    UniqueSelectionDispatcher.prototype.listen = function (listener) {
        this._listeners.push(listener);
    };
    return UniqueSelectionDispatcher;
}());
UniqueSelectionDispatcher = __decorate([
    Injectable()
], UniqueSelectionDispatcher);
export { UniqueSelectionDispatcher };
export function UNIQUE_SELECTION_DISPATCHER_PROVIDER_FACTORY(parentDispatcher) {
    return parentDispatcher || new UniqueSelectionDispatcher();
}
export var UNIQUE_SELECTION_DISPATCHER_PROVIDER = {
    // If there is already a dispatcher available, use that. Otherwise, provide a new one.
    provide: UniqueSelectionDispatcher,
    deps: [[new Optional(), new SkipSelf(), UniqueSelectionDispatcher]],
    useFactory: UNIQUE_SELECTION_DISPATCHER_PROVIDER_FACTORY
};
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