57 lines
1.8 KiB
TypeScript
57 lines
1.8 KiB
TypeScript
/*
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Copyright 2021 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import SettingController from "./SettingController";
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import { SettingLevel } from "../SettingLevel";
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import SettingsStore from "../SettingsStore";
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/**
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* Enforces that a boolean setting cannot be enabled if the incompatible setting
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* is also enabled, to prevent cascading undefined behaviour between conflicting
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* labs flags.
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*/
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export default class IncompatibleController extends SettingController {
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public constructor(
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private settingName: string,
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private forcedValue: any = false,
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private incompatibleValue: any | ((v: any) => boolean) = true,
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) {
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super();
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}
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public getValueOverride(
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level: SettingLevel,
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roomId: string,
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calculatedValue: any,
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calculatedAtLevel: SettingLevel | null,
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): any {
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if (this.incompatibleSetting) {
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return this.forcedValue;
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}
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return null; // no override
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}
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public get settingDisabled(): boolean {
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return this.incompatibleSetting;
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}
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public get incompatibleSetting(): boolean {
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if (typeof this.incompatibleValue === "function") {
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return this.incompatibleValue(SettingsStore.getValue(this.settingName));
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}
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return SettingsStore.getValue(this.settingName) === this.incompatibleValue;
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}
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}
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