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Diffstat (limited to 'includes/external/matrix/node_modules/matrix-js-sdk/lib/indexeddb-helpers.js')
-rw-r--r-- | includes/external/matrix/node_modules/matrix-js-sdk/lib/indexeddb-helpers.js | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/includes/external/matrix/node_modules/matrix-js-sdk/lib/indexeddb-helpers.js b/includes/external/matrix/node_modules/matrix-js-sdk/lib/indexeddb-helpers.js deleted file mode 100644 index 2714e1b..0000000 --- a/includes/external/matrix/node_modules/matrix-js-sdk/lib/indexeddb-helpers.js +++ /dev/null @@ -1,57 +0,0 @@ -"use strict"; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.exists = exists; -/* -Copyright 2019 New Vector Ltd - -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. -*/ - -/** - * Check if an IndexedDB database exists. The only way to do so is to try opening it, so - * we do that and then delete it did not exist before. - * - * @param indexedDB - The `indexedDB` interface - * @param dbName - The database name to test for - * @returns Whether the database exists - */ -function exists(indexedDB, dbName) { - return new Promise((resolve, reject) => { - let exists = true; - const req = indexedDB.open(dbName); - req.onupgradeneeded = () => { - // Since we did not provide an explicit version when opening, this event - // should only fire if the DB did not exist before at any version. - exists = false; - }; - req.onblocked = () => reject(req.error); - req.onsuccess = () => { - const db = req.result; - db.close(); - if (!exists) { - // The DB did not exist before, but has been created as part of this - // existence check. Delete it now to restore previous state. Delete can - // actually take a while to complete in some browsers, so don't wait for - // it. This won't block future open calls that a store might issue next to - // properly set up the DB. - indexedDB.deleteDatabase(dbName); - } - resolve(exists); - }; - req.onerror = () => reject(req.error); - }); -} -//# sourceMappingURL=indexeddb-helpers.js.map
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