Add: Storybookにテーマが適用されるように

.storybook/preview.ts

@@ -7,7 +7,10 @@ import { markdownItPlugin } from "@/plugins/markdownItPlugin";
 
 import "@quasar/extras/material-icons/material-icons.css";
 import "quasar/dist/quasar.sass";
-import "../src/styles/_index.scss";
+import "@/styles/_index.scss";
+import { UnreachableError } from "@/type/utility";
+import { setThemeToCss, setFontToCss } from "@/domain/dom";
+import { themes } from "@/domain/theme";
 
 setup((app) => {
   app.use(Quasar, {
@@ -61,6 +64,42 @@ const preview: Preview = {
       defaultTheme: "light",
       attributeName: "is-dark-theme",
     }),
+
+    // テーマの設定をCSSへ反映する
+    () => {
+      let observer: MutationObserver | undefined = undefined;
+      return {
+        async mounted() {
+          setFontToCss("default");
+
+          const root = document.documentElement;
+          let lastIsDark: boolean | undefined = undefined;
+          observer = new MutationObserver(() => {
+            const isDark = root.getAttribute("is-dark-theme") === "true";
+            if (lastIsDark === isDark) return;
+            lastIsDark = isDark;
+
+            const theme = themes.find((theme) => theme.isDark === isDark);
+            if (!theme)
+              throw new UnreachableError("assert: theme !== undefined");
+
+            setThemeToCss(theme);
+          });
+
+          observer.observe(root, {
+            attributes: true,
+            attributeFilter: ["is-dark-theme"],
+          });
+        },
+        unmounted() {
+          if (observer) {
+            observer.disconnect();
+          }
+        },
+
+        template: `<story />`,
+      };
+    },
   ],
   argTypesEnhancers: [addActionsWithEmits],
 };

src/backend/browser/sandbox.ts

@@ -16,7 +16,6 @@ import {
   EngineSettings,
   HotkeySettingType,
   Sandbox,
-  ThemeConf,
 } from "@/type/preload";
 import { AssetTextFileNames } from "@/type/staticResources";
 
@@ -245,16 +244,6 @@ export const api: Sandbox = {
     // TODO: Impl
     return;
   },
-  async getAvailableThemes() {
-    // NOTE: Electron版では起動時にテーマ情報が必要なので、
-    //       この実装とは違って起動時に読み込んだキャッシュを返すだけになっている。
-    return Promise.all(
-      // FIXME: themeファイルのいい感じのパスの設定
-      ["/themes/default.json", "/themes/dark.json"].map((url) =>
-        fetch(url).then((res) => res.json() as Promise<ThemeConf>),
-      ),
-    );
-  },
   vuexReady() {
     // NOTE: 何もしなくて良さそう
     return Promise.resolve();

src/backend/electron/main.ts

@@ -31,7 +31,6 @@ import { EngineAndVvppController } from "./engineAndVvppController";
 import { failure, success } from "@/type/result";
 import { AssetTextFileNames } from "@/type/staticResources";
 import {
-  ThemeConf,
   EngineInfo,
   SystemError,
   defaultHotkeySettings,
@@ -40,6 +39,7 @@ import {
   EngineId,
   TextAsset,
 } from "@/type/preload";
+import { themes } from "@/domain/theme";
 
 type SingleInstanceLockData = {
   filePath: string | undefined;
@@ -226,20 +226,6 @@ function checkMultiEngineEnabled(): boolean {
   return enabled;
 }
 
-// テーマの読み込み
-const themes = readThemeFiles();
-function readThemeFiles() {
-  const themes: ThemeConf[] = [];
-  const dir = path.join(__static, "themes");
-  for (const file of fs.readdirSync(dir)) {
-    const theme = JSON.parse(
-      fs.readFileSync(path.join(dir, file)).toString(),
-    ) as ThemeConf;
-    themes.push(theme);
-  }
-  return themes;
-}
-
 const appState = {
   willQuit: false,
 };
@@ -652,10 +638,6 @@ registerIpcMainHandle<IpcMainHandle>({
     }
   },
 
-  GET_AVAILABLE_THEMES: () => {
-    return themes;
-  },
-
   OPEN_LOG_DIRECTORY: () => {
     void shell.openPath(app.getPath("logs"));
   },

src/backend/electron/preload.ts

@@ -174,10 +174,6 @@ const api: Sandbox = {
     void ipcRendererInvokeProxy.SET_NATIVE_THEME(source);
   },
 
-  getAvailableThemes: () => {
-    return ipcRendererInvokeProxy.GET_AVAILABLE_THEMES();
-  },
-
   vuexReady: () => {
     void ipcRendererInvokeProxy.ON_VUEX_READY();
   },

src/domain/theme/index.ts

@@ -0,0 +1,41 @@
+import { ThemeConf } from "@/type/preload";
+
+const light = {
+  name: "Default",
+  displayName: "デフォルト",
+  order: 1,
+  isDark: false,
+  colors: {
+    primary: "#A5D4AD",
+    display: "#121212",
+    "display-on-primary": "#121212",
+    "display-hyperlink": "#0969DA",
+    background: "#FFFFFF",
+    surface: "#EEEEEE",
+    warning: "#C10015",
+    "text-splitter-hover": "#CCDDFF",
+    "active-point-focus": "#E0EAFF",
+    "active-point-hover": "#EEF3FF",
+  },
+} as const satisfies ThemeConf;
+
+const dark = {
+  name: "Dark",
+  displayName: "ダーク",
+  order: 2,
+  isDark: true,
+  colors: {
+    primary: "#86C591",
+    display: "#E1E1E1",
+    "display-on-primary": "#1F1F1F",
+    "display-hyperlink": "#58A6FF",
+    background: "#1F1F1F",
+    surface: "#2B2B2B",
+    warning: "#F27483",
+    "text-splitter-hover": "#394152",
+    "active-point-focus": "#292F38",
+    "active-point-hover": "#272A2F",
+  },
+} as const satisfies ThemeConf;
+
+export const themes = [light, dark];

src/store/setting.ts

@@ -1,6 +1,7 @@
 import { SettingStoreState, SettingStoreTypes } from "./type";
 import { createDotNotationUILockAction as createUILockAction } from "./ui";
 import { createDotNotationPartialStore as createPartialStore } from "./vuex";
+import { themes } from "@/domain/theme";
 import {
   showAlertDialog,
   showQuestionDialog,
@@ -83,7 +84,7 @@ export const settingStore = createPartialStore<SettingStoreTypes>({
       });
 
       mutations.SET_AVAILABLE_THEMES({
-        themes: await window.backend.getAvailableThemes(),
+        themes,
       });
       void actions.SET_CURRENT_THEME_SETTING({
         currentTheme: await window.backend.getSetting("currentTheme"),

src/store/ui.ts

@@ -373,6 +373,10 @@ export const uiStore = createPartialStore<UiStoreTypes>({
     },
   },
 
+  /**
+   * 選択可能なテーマをセットする。
+   * NOTE: カスタムテーマが導入された場合を見越して残している。
+   */
   SET_AVAILABLE_THEMES: {
     mutation(state, { themes }) {
       state.availableThemes = themes;

src/styles/_index.scss

@@ -9,11 +9,15 @@
 // 優先度を強引に上げる
 body:not(#dummy) {
   user-select: none;
-  border-left: solid #{vars.$window-border-width} #{colors.$splitter};
-  border-right: solid #{vars.$window-border-width} #{colors.$splitter};
-  border-bottom: solid #{vars.$window-border-width} #{colors.$splitter};
   color: colors.$display;
   background: colors.$background;
+
+  // Storybookでは枠線を付けない
+  &:not(.sb-show-main) {
+    border-left: solid #{vars.$window-border-width} #{colors.$splitter};
+    border-right: solid #{vars.$window-border-width} #{colors.$splitter};
+    border-bottom: solid #{vars.$window-border-width} #{colors.$splitter};
+  }
 }
 
 body[data-editor-font="default"] {

src/type/ipc.ts

@@ -9,7 +9,6 @@ import {
   MessageBoxReturnValue,
   NativeThemeType,
   TextAsset,
-  ThemeConf,
   ToolbarSettingType,
 } from "@/type/preload";
 import { AltPortInfos } from "@/store/type";
@@ -169,11 +168,6 @@ export type IpcIHData = {
     return: ToolbarSettingType;
   };
 
-  GET_AVAILABLE_THEMES: {
-    args: [];
-    return: ThemeConf[];
-  };
-
   ON_VUEX_READY: {
     args: [];
     return: void;

src/type/preload.ts

@@ -277,7 +277,6 @@ export interface Sandbox {
   getDefaultHotkeySettings(): Promise<HotkeySettingType[]>;
   getDefaultToolbarSetting(): Promise<ToolbarSettingType>;
   setNativeTheme(source: NativeThemeType): void;
-  getAvailableThemes(): Promise<ThemeConf[]>;
   vuexReady(): void;
   getSetting<Key extends keyof ConfigType>(key: Key): Promise<ConfigType[Key]>;
   setSetting<Key extends keyof ConfigType>(