mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-14 15:56:38 +03:00
Jacob Trimble
c81389741f
A coming update to the Google eslint config will require using "const" over "let". This makes that one change to isolate the big changes. Change-Id: I7d0974c3ae15c53cc45a6b07bf9f6586e2d34aca
63 lines
1.8 KiB
JavaScript
63 lines
1.8 KiB
JavaScript
/**
|
|
* @license
|
|
* Copyright 2016 Google Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
goog.provide('shaka.util.OperationManager');
|
|
|
|
goog.require('shaka.util.ArrayUtils');
|
|
goog.require('shaka.util.IDestroyable');
|
|
|
|
/**
|
|
* A utility for cleaning up AbortableOperations, to help simplify common
|
|
* patterns and reduce code duplication.
|
|
*
|
|
* @implements {shaka.util.IDestroyable}
|
|
*/
|
|
shaka.util.OperationManager = class {
|
|
constructor() {
|
|
/** @private {!Array.<!shaka.extern.IAbortableOperation>} */
|
|
this.operations_ = [];
|
|
}
|
|
|
|
/**
|
|
* Manage an operation. This means aborting it on destroy() and removing it
|
|
* from the management set when it complete.
|
|
*
|
|
* @param {!shaka.extern.IAbortableOperation} operation
|
|
*/
|
|
manage(operation) {
|
|
this.operations_.push(operation.finally(() => {
|
|
shaka.util.ArrayUtils.remove(this.operations_, operation);
|
|
}));
|
|
}
|
|
|
|
/** @override */
|
|
destroy() {
|
|
const cleanup = [];
|
|
this.operations_.forEach((op) => {
|
|
// Catch and ignore any failures. This silences error logs in the
|
|
// JavaScript console about uncaught Promise failures.
|
|
op.promise.catch(() => {});
|
|
|
|
// Now abort the operation.
|
|
cleanup.push(op.abort());
|
|
});
|
|
|
|
this.operations_ = [];
|
|
return Promise.all(cleanup);
|
|
}
|
|
};
|