feat: Add setting to follow system theming

_locales/en/messages.json

@@ -223,6 +223,8 @@
   "savedMessages": "Saved Messages",
   "hideMenuBarTitle": "Hide Menu Bar",
   "hideMenuBarDescription": "Toggle system menu bar visibility.",
+  "matchThemeSystemSettingTitle": "Auto dark-mode",
+  "matchThemeSystemSettingDescription": "Match system settings",
   "startConversation": "Start New Conversation",
   "invalidNumberError": "Please check the Session ID or ONS name and try again",
   "failedResolveOns": "Failed to resolve ONS name",

stylesheets/_modules.scss

@@ -834,11 +834,11 @@
 
   color: var(--white-color);
 
-  font-size: 20px;  
-	font-weight: normal;
-	letter-spacing: 0;
-	text-align: center;
-	background-color: rgba(0, 0, 0, 0.7);
+  font-size: 20px;
+  font-weight: normal;
+  letter-spacing: 0;
+  text-align: center;
+  background-color: rgba(0, 0, 0, 0.7);
 }
 
 .module-image__close-button {

ts/components/leftpane/ActionsPanel.tsx

@@ -43,7 +43,8 @@ import {
   getFreshSwarmFor,
 } from '../../session/apis/snode_api/snodePool';
 import { isDarkTheme } from '../../state/selectors/theme';
-import { ThemeStateType } from '../../themes/constants/colors';
+import { ensureThemeConsistency } from '../../themes/SessionTheme';
+import { getOppositeTheme } from '../../util/theme';
 import { switchThemeTo } from '../../themes/switchTheme';
 import { ConfigurationSync } from '../../session/utils/job_runners/jobs/ConfigurationSyncJob';
 
@@ -61,11 +62,8 @@ const Section = (props: { type: SectionType }) => {
     if (type === SectionType.Profile) {
       dispatch(editProfileModal({}));
     } else if (type === SectionType.ColorMode) {
-      const currentTheme = String(window.Events.getThemeSetting());
-      const newTheme = (isDarkMode
-        ? currentTheme.replace('dark', 'light')
-        : currentTheme.replace('light', 'dark')) as ThemeStateType;
-
+      const currentTheme = window.Events.getThemeSetting();
+      const newTheme = getOppositeTheme(currentTheme);
       // We want to persist the primary color when using the color mode button
       void switchThemeTo({
         theme: newTheme,
@@ -149,14 +147,26 @@ const cleanUpMediasInterval = DURATION.MINUTES * 60;
 const fetchReleaseFromFileServerInterval = 1000 * 60; // try to fetch the latest release from the fileserver every minute
 
 const setupTheme = async () => {
+  const shouldFollowSystemTheme = window.getSettingValue(SettingsKey.hasFollowSystemThemeEnabled);
   const theme = window.Events.getThemeSetting();
-  // We don't want to reset the primary color on startup
-  await switchThemeTo({
+  const themeConfig = {
     theme,
     mainWindow: true,
     usePrimaryColor: true,
     dispatch: window?.inboxStore?.dispatch || undefined,
-  });
+  };
+
+  if (shouldFollowSystemTheme) {
+    // Check if system theme matches currently set theme, if not switch it and return true, if matching return false
+    const wasThemeSwitched = await ensureThemeConsistency();
+    if (!wasThemeSwitched) {
+      // if theme wasn't switched them set theme to default
+      await switchThemeTo(themeConfig);
+    }
+    return;
+  }
+
+  await switchThemeTo(themeConfig);
 };
 
 // Do this only if we created a new Session ID, or if we already received the initial configuration message

ts/components/settings/section/CategoryAppearance.tsx

@@ -3,13 +3,15 @@ import React from 'react';
 import useUpdate from 'react-use/lib/useUpdate';
 import { SettingsKey } from '../../../data/settings-key';
 import { isHideMenuBarSupported } from '../../../types/Settings';
-
+import { useHasFollowSystemThemeEnabled } from '../../../state/selectors/settings';
+import { ensureThemeConsistency } from '../../../themes/SessionTheme';
 import { SessionToggleWithDescription } from '../SessionSettingListItem';
 import { SettingsThemeSwitcher } from '../SettingsThemeSwitcher';
 import { ZoomingSessionSlider } from '../ZoomingSessionSlider';
 
 export const SettingsCategoryAppearance = (props: { hasPassword: boolean | null }) => {
   const forceUpdate = useUpdate();
+  const isFollowSystemThemeEnabled = useHasFollowSystemThemeEnabled();
 
   if (props.hasPassword !== null) {
     const isHideMenuBarActive =
@@ -32,6 +34,20 @@ export const SettingsCategoryAppearance = (props: { hasPassword: boolean | null
             active={isHideMenuBarActive}
           />
         )}
+        <SessionToggleWithDescription
+          // eslint-disable-next-line @typescript-eslint/no-misused-promises
+          onClickToggle={async () => {
+            const toggledValue = !isFollowSystemThemeEnabled;
+            await window.setSettingValue(SettingsKey.hasFollowSystemThemeEnabled, toggledValue);
+            if (!isFollowSystemThemeEnabled) {
+              await ensureThemeConsistency();
+            }
+          }}
+          title={window.i18n('matchThemeSystemSettingTitle')}
+          description={window.i18n('matchThemeSystemSettingDescription')}
+          active={isFollowSystemThemeEnabled}
+          dataTestId="enable-follow-system-theme"
+        />
       </>
     );
   }

ts/data/settings-key.ts

@@ -14,6 +14,7 @@ const someDeviceOutdatedSyncing = 'someDeviceOutdatedSyncing';
 const hasSyncedInitialConfigurationItem = 'hasSyncedInitialConfigurationItem';
 const lastAvatarUploadTimestamp = 'lastAvatarUploadTimestamp';
 const hasLinkPreviewPopupBeenDisplayed = 'hasLinkPreviewPopupBeenDisplayed';
+const hasFollowSystemThemeEnabled = 'hasFollowSystemThemeEnabled';
 
 // user config tracking timestamps (to discard incoming messages which would make a change we reverted in the last config message we merged)
 const latestUserProfileEnvelopeTimestamp = 'latestUserProfileEnvelopeTimestamp';
@@ -40,6 +41,7 @@ export const SettingsKey = {
   latestUserProfileEnvelopeTimestamp,
   latestUserGroupEnvelopeTimestamp,
   latestUserContactsEnvelopeTimestamp,
+  hasFollowSystemThemeEnabled,
 } as const;
 
 export const KNOWN_BLINDED_KEYS_ITEM = 'KNOWN_BLINDED_KEYS_ITEM';

ts/mains/main_node.ts

@@ -10,6 +10,7 @@ import {
   dialog,
   ipcMain as ipc,
   Menu,
+  nativeTheme,
   protocol as electronProtocol,
   screen,
   shell,
@@ -1117,6 +1118,15 @@ ipc.on('set-auto-update-setting', async (_event, enabled) => {
   }
 });
 
+ipc.on('get-native-theme', event => {
+  event.sender.send('send-native-theme', nativeTheme.shouldUseDarkColors);
+});
+
+nativeTheme.on('updated', () => {
+  // Inform all renderer processes of the theme change
+  mainWindow?.webContents.send('native-theme-update', nativeTheme.shouldUseDarkColors);
+});
+
 async function getThemeFromMainWindow() {
   return new Promise(resolve => {
     ipc.once('get-success-theme-setting', (_event, value) => {

ts/mains/main_renderer.tsx

@@ -1,7 +1,7 @@
+import { ipcRenderer } from 'electron';
 import _ from 'lodash';
 import ReactDOM from 'react-dom';
 import Backbone from 'backbone';
-
 import React from 'react';
 import nativeEmojiData from '@emoji-mart/data';
 
@@ -27,6 +27,8 @@ import { switchPrimaryColorTo } from '../themes/switchPrimaryColor';
 import { LibSessionUtil } from '../session/utils/libsession/libsession_utils';
 import { runners } from '../session/utils/job_runners/JobRunner';
 import { SettingsKey } from '../data/settings-key';
+import { getOppositeTheme, isThemeMismatched } from '../util/theme';
+import { switchThemeTo } from '../themes/switchTheme';
 
 // Globally disable drag and drop
 document.body.addEventListener(
@@ -109,6 +111,23 @@ function mapOldThemeToNew(theme: string) {
       return theme;
   }
 }
+// using __unused as lodash is imported using _
+ipcRenderer.on('native-theme-update', (__unused, shouldUseDarkColors) => {
+  const shouldFollowSystemTheme = window.getSettingValue(SettingsKey.hasFollowSystemThemeEnabled);
+
+  if (shouldFollowSystemTheme) {
+    const theme = window.Events.getThemeSetting();
+    if (isThemeMismatched(theme, shouldUseDarkColors)) {
+      const newTheme = getOppositeTheme(theme);
+      void switchThemeTo({
+        theme: newTheme,
+        mainWindow: true,
+        usePrimaryColor: true,
+        dispatch: window?.inboxStore?.dispatch,
+      });
+    }
+  }
+});
 
 async function startJobRunners() {
   // start the job runners

ts/state/ducks/settings.tsx

@@ -8,6 +8,7 @@ const SettingsBoolsKeyTrackedInRedux = [
   SettingsKey.someDeviceOutdatedSyncing,
   SettingsKey.settingsLinkPreview,
   SettingsKey.hasBlindedMsgRequestsEnabled,
+  SettingsKey.hasFollowSystemThemeEnabled,
   SettingsKey.hasShiftSendEnabled,
 ] as const;
 
@@ -21,6 +22,7 @@ export function getSettingsInitialState() {
       someDeviceOutdatedSyncing: false,
       'link-preview-setting': false, // this is the value of SettingsKey.settingsLinkPreview
       hasBlindedMsgRequestsEnabled: false,
+      hasFollowSystemThemeEnabled: false,
       hasShiftSendEnabled: false,
     },
   };
@@ -49,18 +51,27 @@ const settingsSlice = createSlice({
         SettingsKey.hasBlindedMsgRequestsEnabled,
         false
       );
+      const hasFollowSystemThemeEnabled = Storage.get(
+        SettingsKey.hasFollowSystemThemeEnabled,
+        false
+      );
       const hasShiftSendEnabled = Storage.get(SettingsKey.hasShiftSendEnabled, false);
-
       state.settingsBools.someDeviceOutdatedSyncing = isBoolean(outdatedSync)
         ? outdatedSync
         : false;
       state.settingsBools['link-preview-setting'] = isBoolean(linkPreview) ? linkPreview : false; // this is the value of SettingsKey.settingsLinkPreview
       state.settingsBools.hasBlindedMsgRequestsEnabled = isBoolean(hasBlindedMsgRequestsEnabled)
         ? hasBlindedMsgRequestsEnabled
         : false;
+
+      state.settingsBools.hasFollowSystemThemeEnabled = isBoolean(hasFollowSystemThemeEnabled)
+        ? hasFollowSystemThemeEnabled
+        : false;
+
       state.settingsBools.hasShiftSendEnabled = isBoolean(hasShiftSendEnabled)
         ? hasShiftSendEnabled
         : false;
+
       return state;
     },
     updateSettingsBoolValue(state, action: PayloadAction<{ id: string; value: boolean }>) {

ts/state/selectors/settings.ts

@@ -11,6 +11,9 @@ const getHasDeviceOutdatedSyncing = (state: StateType) =>
 const getHasBlindedMsgRequestsEnabled = (state: StateType) =>
   state.settings.settingsBools[SettingsKey.hasBlindedMsgRequestsEnabled];
 
+const getHasFollowSystemThemeEnabled = (state: StateType) =>
+  state.settings.settingsBools[SettingsKey.hasFollowSystemThemeEnabled];
+
 const getHasShiftSendEnabled = (state: StateType) =>
   state.settings.settingsBools[SettingsKey.hasShiftSendEnabled];
 
@@ -29,7 +32,13 @@ export const useHasBlindedMsgRequestsEnabled = () => {
   return Boolean(value);
 };
 
+export const useHasFollowSystemThemeEnabled = () => {
+  const value = useSelector(getHasFollowSystemThemeEnabled);
+  return Boolean(value);
+};
+
 export const useHasEnterSendEnabled = () => {
   const value = useSelector(getHasShiftSendEnabled);
+
   return Boolean(value);
 };

ts/state/selectors/theme.ts

@@ -1,8 +1,9 @@
 import { ThemeStateType } from '../../themes/constants/colors';
 import { StateType } from '../reducer';
+import { checkDarkTheme, checkLightTheme } from '../../util/theme';
 
 export const getTheme = (state: StateType): ThemeStateType => state.theme;
 
-export const isDarkTheme = (state: StateType): boolean => state.theme.includes('dark');
+export const isDarkTheme = (state: StateType): boolean => checkDarkTheme(state.theme);
 
-export const isLightTheme = (state: StateType): boolean => state.theme.includes('light');
+export const isLightTheme = (state: StateType): boolean => checkLightTheme(state.theme);

ts/themes/SessionTheme.tsx

@@ -1,7 +1,9 @@
+import { ipcRenderer } from 'electron';
 import React from 'react';
-
 import { createGlobalStyle } from 'styled-components';
+import { switchThemeTo } from './switchTheme';
 import { classicDark } from './classicDark';
+import { getOppositeTheme, isThemeMismatched } from '../util/theme';
 import { declareCSSVariables, THEME_GLOBALS } from './globals';
 
 // Defaults to Classic Dark theme
@@ -18,3 +20,26 @@ export const SessionTheme = ({ children }: { children: any }) => (
     {children}
   </>
 );
+
+export async function ensureThemeConsistency(): Promise<boolean> {
+  const theme = window.Events.getThemeSetting();
+
+  return new Promise(resolve => {
+    ipcRenderer.send('get-native-theme');
+    ipcRenderer.once('send-native-theme', (_, shouldUseDarkColors) => {
+      const isMismatchedTheme = isThemeMismatched(theme, shouldUseDarkColors);
+      if (isMismatchedTheme) {
+        const newTheme = getOppositeTheme(theme);
+        void switchThemeTo({
+          theme: newTheme,
+          mainWindow: true,
+          usePrimaryColor: true,
+          dispatch: window?.inboxStore?.dispatch,
+        });
+        resolve(true); // Theme was switched
+      } else {
+        resolve(false); // Theme was not switched
+      }
+    });
+  });
+}

ts/types/LocalizerKeys.ts

@@ -245,6 +245,8 @@ export type LocalizerKeys =
   | 'mainMenuWindow'
   | 'markAllAsRead'
   | 'markUnread'
+  | 'matchThemeSystemSettingDescription'
+  | 'matchThemeSystemSettingTitle'
   | 'maxPasswordAttempts'
   | 'maximumAttachments'
   | 'media'

ts/util/theme.ts

@@ -0,0 +1,21 @@
+import { ThemeStateType } from '../themes/constants/colors';
+
+export const checkDarkTheme = (theme: ThemeStateType): boolean => theme.includes('dark');
+export const checkLightTheme = (theme: ThemeStateType): boolean => theme.includes('light');
+
+export function getOppositeTheme(themeName: ThemeStateType): ThemeStateType {
+  if (checkDarkTheme(themeName)) {
+    return themeName.replace('dark', 'light') as ThemeStateType;
+  }
+  if (checkLightTheme(themeName)) {
+    return themeName.replace('light', 'dark') as ThemeStateType;
+  }
+  // If neither 'dark' nor 'light' is in the theme name, return the original theme name.
+  return themeName as ThemeStateType;
+}
+
+export function isThemeMismatched(themeName: ThemeStateType, prefersDark: boolean): boolean {
+  const systemLightTheme = checkLightTheme(themeName);
+  const systemDarkTheme = checkDarkTheme(themeName);
+  return (prefersDark && systemLightTheme) || (!prefersDark && systemDarkTheme);
+}