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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview Helper class for making blocking requests that are resolved
* elsewhere in the DOM.
*/
cr.define('settings', function() {
class BlockingRequestManager {
/**
* @param {Function=} makeRequest Function to initiate flow for request. If
* no function is provided, it defaults to this.resolve, i.e. it
* immediately resolves all requests.
*/
constructor(makeRequest) {
this.makeRequest_ = makeRequest || this.resolve;
/**
* @private {Function} callback Provided in requests and called when the
* request is resolved.
*/
this.callback_ = null;
}
/**
* Make a blocking request.
* @param {Function} callback Function to be called if/when the request is
* successfully resolved.
*/
request(callback) {
this.callback_ = callback;
this.makeRequest_();
}
/** Called if/when request is resolved successfully. */
resolve() {
this.callback_();
}
}
return {
BlockingRequestManager: BlockingRequestManager,
};
});
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