Add theme enums and platformUtilsService helper (#497)

* Use enum for themes, add getEffectiveTheme

* Update electron and cli to use theme refactor

common/src/abstractions/platformUtils.service.ts

@@ -1,4 +1,5 @@
 import { DeviceType } from '../enums/deviceType';
+import { ThemeType } from '../enums/themeType';
 
 export abstract class PlatformUtilsService {
     identityClientId: string;
@@ -28,7 +29,8 @@ export abstract class PlatformUtilsService {
     readFromClipboard: (options?: any) => Promise<string>;
     supportsBiometric: () => Promise<boolean>;
     authenticateBiometric: () => Promise<boolean>;
-    getDefaultSystemTheme: () => Promise<'light' | 'dark'>;
-    onDefaultSystemThemeChange: (callback: ((theme: 'light' | 'dark') => unknown)) => unknown;
+    getDefaultSystemTheme: () => Promise<ThemeType.Light | ThemeType.Dark>;
+    onDefaultSystemThemeChange: (callback: ((theme: ThemeType.Light | ThemeType.Dark) => unknown)) => unknown;
+    getEffectiveTheme: () => Promise<ThemeType>;
     supportsSecureStorage: () => boolean;
 }

common/src/enums/themeType.ts

@@ -0,0 +1,7 @@
+export enum ThemeType {
+    System = 'system',
+    Light = 'light',
+    Dark = 'dark',
+    Nord = 'nord',
+    SolarizedDark = 'solarizedDark',
+}

electron/src/services/electronMainMessaging.service.ts

@@ -3,6 +3,8 @@ import { promises as fs } from 'fs';
 import { MessagingService } from 'jslib-common/abstractions/messaging.service';
 import { RendererMenuItem } from '../utils';
 
+import { ThemeType } from 'jslib-common/enums/themeType';
+
 import { WindowMain } from '../window.main';
 
 export class ElectronMainMessagingService implements MessagingService {
@@ -12,7 +14,7 @@ export class ElectronMainMessagingService implements MessagingService {
         });
 
         ipcMain.handle('systemTheme', () => {
-            return nativeTheme.shouldUseDarkColors ? 'dark' : 'light';
+            return nativeTheme.shouldUseDarkColors ? ThemeType.Dark : ThemeType.Light;
         });
 
         ipcMain.handle('showMessageBox', (event, options) => {
@@ -42,7 +44,7 @@ export class ElectronMainMessagingService implements MessagingService {
         });
 
         nativeTheme.on('updated', () => {
-            windowMain.win?.webContents.send('systemThemeUpdated', nativeTheme.shouldUseDarkColors ? 'dark' : 'light');
+            windowMain.win?.webContents.send('systemThemeUpdated', nativeTheme.shouldUseDarkColors ? ThemeType.Dark : ThemeType.Light);
         });
     }
 

electron/src/services/electronPlatformUtils.service.ts

@@ -10,12 +10,15 @@ import {
 } from '../utils';
 
 import { DeviceType } from 'jslib-common/enums/deviceType';
+import { ThemeType } from 'jslib-common/enums/themeType';
 
 import { I18nService } from 'jslib-common/abstractions/i18n.service';
 import { MessagingService } from 'jslib-common/abstractions/messaging.service';
 import { PlatformUtilsService } from 'jslib-common/abstractions/platformUtils.service';
 import { StorageService } from 'jslib-common/abstractions/storage.service';
 
+import { ConstantsService } from 'jslib-common/services/constants.service';
+
 import { ElectronConstants } from '../electronConstants';
 
 export class ElectronPlatformUtilsService implements PlatformUtilsService {
@@ -192,8 +195,17 @@ export class ElectronPlatformUtilsService implements PlatformUtilsService {
         return ipcRenderer.invoke('systemTheme');
     }
 
-    onDefaultSystemThemeChange(callback: ((theme: 'light' | 'dark') => unknown)) {
-        ipcRenderer.on('systemThemeUpdated', (event, theme: 'light' | 'dark') => callback(theme));
+    onDefaultSystemThemeChange(callback: ((theme: ThemeType.Light | ThemeType.Dark) => unknown)) {
+        ipcRenderer.on('systemThemeUpdated', (event, theme: ThemeType.Light | ThemeType.Dark) => callback(theme));
+    }
+
+    async getEffectiveTheme() {
+        const theme = await this.storageService.get<ThemeType>(ConstantsService.themeKey);
+        if (theme == null || theme === ThemeType.System) {
+            return this.getDefaultSystemTheme();
+        } else {
+            return theme;
+        }
     }
 
     supportsSecureStorage(): boolean {

node/src/cli/services/cliPlatformUtils.service.ts

@@ -1,6 +1,7 @@
 import * as child_process from 'child_process';
 
 import { DeviceType } from 'jslib-common/enums/deviceType';
+import { ThemeType } from 'jslib-common/enums/themeType';
 
 import { PlatformUtilsService } from 'jslib-common/abstractions/platformUtils.service';
 
@@ -135,13 +136,17 @@ export class CliPlatformUtilsService implements PlatformUtilsService {
     }
 
     getDefaultSystemTheme() {
-        return Promise.resolve('light' as 'light' | 'dark');
+        return Promise.resolve(ThemeType.Light as ThemeType.Light | ThemeType.Dark);
     }
 
     onDefaultSystemThemeChange() {
         /* noop */
     }
 
+    getEffectiveTheme() {
+        return Promise.resolve(ThemeType.Light);
+    }
+
     supportsSecureStorage(): boolean {
         return false;
     }