85 lines
2.6 KiB
TypeScript
85 lines
2.6 KiB
TypeScript
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// Copyright 2017-2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import * as log from '../ts/logging/log';
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import {
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parseSystemTraySetting,
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SystemTraySetting,
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} from '../ts/types/SystemTraySetting';
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import { isSystemTraySupported } from '../ts/types/Settings';
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import type { MainSQL } from '../ts/sql/main';
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/**
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* A small helper class to get and cache the `system-tray-setting` preference in the main
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* process.
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*/
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export class SystemTraySettingCache {
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private cachedValue: undefined | SystemTraySetting;
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private getPromise: undefined | Promise<SystemTraySetting>;
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constructor(
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private readonly sql: Pick<MainSQL, 'sqlCall'>,
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private readonly argv: Array<string>
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) {}
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async get(): Promise<SystemTraySetting> {
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if (this.cachedValue !== undefined) {
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return this.cachedValue;
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}
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this.getPromise = this.getPromise || this.doFirstGet();
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return this.getPromise;
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}
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set(value: SystemTraySetting): void {
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this.cachedValue = value;
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}
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private async doFirstGet(): Promise<SystemTraySetting> {
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let result: SystemTraySetting;
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// These command line flags are not officially supported, but many users rely on them.
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// Be careful when removing them or making changes.
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if (this.argv.some(arg => arg === '--start-in-tray')) {
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result = SystemTraySetting.MinimizeToAndStartInSystemTray;
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log.info(
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`getSystemTraySetting saw --start-in-tray flag. Returning ${result}`
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);
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} else if (this.argv.some(arg => arg === '--use-tray-icon')) {
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result = SystemTraySetting.MinimizeToSystemTray;
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log.info(
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`getSystemTraySetting saw --use-tray-icon flag. Returning ${result}`
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);
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} else if (isSystemTraySupported()) {
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const { value } = (await this.sql.sqlCall('getItemById', [
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'system-tray-setting',
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])) || { value: undefined };
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if (value !== undefined) {
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result = parseSystemTraySetting(value);
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log.info(
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`getSystemTraySetting returning value from database, ${result}`
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);
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} else {
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result = SystemTraySetting.DoNotUseSystemTray;
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log.info(
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`getSystemTraySetting got no value from database, returning ${result}`
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);
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}
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} else {
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result = SystemTraySetting.DoNotUseSystemTray;
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log.info(
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`getSystemTraySetting had no flags and did no DB lookups. Returning ${result}`
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);
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}
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// If there's a value in the cache, someone has updated the value "out from under us",
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// so we should return that because it's newer.
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this.cachedValue =
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this.cachedValue === undefined ? result : this.cachedValue;
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return this.cachedValue;
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}
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}
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