element-web/src/PlatformPeg.ts
David Langley 491f0cd08a
Change license (#13)
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2024-09-09 13:57:16 +00:00

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TypeScript

/*
Copyright 2024 New Vector Ltd.
Copyright 2020 The Matrix.org Foundation C.I.C.
Copyright 2016 OpenMarket Ltd
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/
import BasePlatform from "./BasePlatform";
import defaultDispatcher from "./dispatcher/dispatcher";
import { Action } from "./dispatcher/actions";
import { PlatformSetPayload } from "./dispatcher/payloads/PlatformSetPayload";
/*
* Holds the current instance of the `Platform` to use across the codebase.
* Looking for an `Platform`? Just look for the `PlatformPeg` on the peg board.
* "Peg" is the literal meaning of something you hang something on. So you'll
* find a `Platform` hanging on the `PlatformPeg`.
*
* Used by the code to do anything specific to the platform we're running on
* (eg. web, electron). Platforms are provided by the app layer. This allows the
* app layer to set a Platform without necessarily having to have a MatrixChat
* object.
*/
export class PlatformPeg {
private platform: BasePlatform | null = null;
/**
* Returns the current Platform object for the application.
* This should be an instance of a class extending BasePlatform.
*/
public get(): BasePlatform | null {
return this.platform;
}
/**
* Sets the current platform handler object to use for the application.
* @param {BasePlatform} platform an instance of a class extending BasePlatform.
*/
public set(platform: BasePlatform): void {
this.platform = platform;
defaultDispatcher.dispatch<PlatformSetPayload>({
action: Action.PlatformSet,
platform,
});
}
}
if (!window.mxPlatformPeg) {
window.mxPlatformPeg = new PlatformPeg();
}
export default window.mxPlatformPeg;