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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/xpconnect/loader/ComponentUtils.sys.mjs | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/xpconnect/loader/ComponentUtils.sys.mjs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/js/xpconnect/loader/ComponentUtils.sys.mjs b/js/xpconnect/loader/ComponentUtils.sys.mjs new file mode 100644 index 0000000000..cfffb96ef7 --- /dev/null +++ b/js/xpconnect/loader/ComponentUtils.sys.mjs @@ -0,0 +1,33 @@ +/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- + * vim: sw=2 ts=2 sts=2 et filetype=javascript + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/** + * Deprecated utilities for JavaScript components loaded by the JS component + * loader. + */ + +const nsIFactoryQI = ChromeUtils.generateQI(["nsIFactory"]); + +export var ComponentUtils = { + /** + * Generates a singleton nsIFactory implementation that can be used as + * an argument to nsIComponentRegistrar.registerFactory. + * @param aServiceConstructor + * Constructor function of the component. + */ + generateSingletonFactory(aServiceConstructor) { + return { + _instance: null, + createInstance(aIID) { + if (this._instance === null) { + this._instance = new aServiceConstructor(); + } + return this._instance.QueryInterface(aIID); + }, + QueryInterface: nsIFactoryQI, + }; + }, +}; |