mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-16 16:16:40 +03:00
Joey Parrish
7544670ee5
The new eslint found many style errors which have now been corrected. It also complains a lot about atomic update issues that do not seem to exist, so that rule has been disabled. This upgrade will allow us to adopt eslint's "id-denylist" instead of the older "id-blacklist" rule, the name of which violates new Google guidelines about respectful language. Bug: 178203011 Change-Id: Ia65581b96e4dd1331f720fa396183dca020b9caf
88 lines
2.4 KiB
JavaScript
88 lines
2.4 KiB
JavaScript
/*! @license
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* Shaka Player
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* Copyright 2016 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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goog.provide('shaka.offline.indexeddb.DBConnection');
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goog.require('shaka.offline.indexeddb.DBOperation');
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goog.require('shaka.util.ArrayUtils');
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/**
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* DBConnection is used to manage an IndexedDB connection. It can create new
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* operations. If the connection is killed (via |destroy|) all pending
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* operations will be cancelled.
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*/
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shaka.offline.indexeddb.DBConnection = class {
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/**
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* @param {IDBDatabase} connection A connection to an IndexedDB instance.
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*/
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constructor(connection) {
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/** @private {IDBDatabase} */
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this.connection_ = connection;
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/** @private {!Array.<shaka.offline.indexeddb.DBOperation>} */
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this.pending_ = [];
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}
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/**
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* @return {!Promise}
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*/
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destroy() {
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return Promise.all(this.pending_.map((op) => {
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return op.abort();
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}));
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}
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/**
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* @param {string} store The name of the store that the operation should
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* occur on.
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* @return {!shaka.offline.indexeddb.DBOperation}
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*/
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startReadOnlyOperation(store) {
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return this.startOperation_(store, 'readonly');
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}
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/**
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* @param {string} store The name of the store that the operation should
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* occur on.
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* @return {!shaka.offline.indexeddb.DBOperation}
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*/
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startReadWriteOperation(store) {
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return this.startOperation_(store, 'readwrite');
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}
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/**
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* @param {string} store The name of the store that the operation should
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* occur on.
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* @param {string} type The type of operation being performed on the store.
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* This determines what commands may be performed. This
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* can either be "readonly" or "readwrite".
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* @return {!shaka.offline.indexeddb.DBOperation}
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* @private
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*/
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startOperation_(store, type) {
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const transaction = this.connection_.transaction([store], type);
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const operation =
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new shaka.offline.indexeddb.DBOperation(transaction, store);
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this.pending_.push(operation);
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// Once the operation is done (regardless of outcome) stop tracking it.
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operation.promise().then(
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() => this.stopTracking_(operation),
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() => this.stopTracking_(operation));
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return operation;
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}
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/**
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* @param {!shaka.offline.indexeddb.DBOperation} operation
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* @private
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*/
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stopTracking_(operation) {
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shaka.util.ArrayUtils.remove(this.pending_, operation);
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}
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};
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