feat(projects): support grayscale. fixed #385

src/store/modules/theme/index.ts

@@ -5,7 +5,14 @@ import { useEventListener, usePreferredColorScheme } from '@vueuse/core';
 import { getColorPalette } from '@sa/color-palette';
 import { SetupStoreId } from '@/enum';
 import { localStg } from '@/utils/storage';
-import { addThemeVarsToHtml, createThemeToken, getNaiveTheme, initThemeSettings, toggleCssDarkMode } from './shared';
+import {
+  addThemeVarsToHtml,
+  createThemeToken,
+  getNaiveTheme,
+  initThemeSettings,
+  toggleCssDarkMode,
+  toggleGrayscaleMode
+} from './shared';
 
 /** Theme store */
 export const useThemeStore = defineStore(SetupStoreId.Theme, () => {
@@ -23,6 +30,9 @@ export const useThemeStore = defineStore(SetupStoreId.Theme, () => {
     return settings.value.themeScheme === 'dark';
   });
 
+  /** grayscale mode */
+  const grayscaleMode = computed(() => settings.value.grayscale);
+
   /** Theme colors */
   const themeColors = computed(() => {
     const { themeColor, otherColor, isInfoFollowPrimary } = settings.value;
@@ -60,6 +70,15 @@ export const useThemeStore = defineStore(SetupStoreId.Theme, () => {
     settings.value.themeScheme = themeScheme;
   }
 
+  /**
+   * Set grayscale value
+   *
+   * @param isGrayscale
+   */
+  function setGrayscale(isGrayscale: boolean) {
+    settings.value.grayscale = isGrayscale;
+  }
+
   /** Toggle theme scheme */
   function toggleThemeScheme() {
     const themeSchemes: UnionKey.ThemeScheme[] = ['light', 'dark', 'auto'];
@@ -130,12 +149,19 @@ export const useThemeStore = defineStore(SetupStoreId.Theme, () => {
       { immediate: true }
     );
 
+    watch(
+      grayscaleMode,
+      val => {
+        toggleGrayscaleMode(val);
+      },
+      { immediate: true }
+    );
+
     // themeColors change, update css vars and storage theme color
     watch(
       themeColors,
       val => {
         setupThemeVarsToHtml();
-
         localStg.set('themeColor', val.primary);
       },
       { immediate: true }
@@ -153,6 +179,7 @@ export const useThemeStore = defineStore(SetupStoreId.Theme, () => {
     themeColors,
     naiveTheme,
     settingsJson,
+    setGrayscale,
     resetStore,
     setThemeScheme,
     toggleThemeScheme,

src/store/modules/theme/shared.ts

@@ -3,6 +3,7 @@ import { getColorByPaletteNumber, getColorPalette } from '@sa/color-palette';
 import { addColorAlpha, getRgbOfColor } from '@sa/utils';
 import { overrideThemeSettings, themeSettings } from '@/theme/settings';
 import { themeVars } from '@/theme/vars';
+import { toggleHtmlClass } from '@/utils/common';
 import { localStg } from '@/utils/storage';
 
 const DARK_CLASS = 'dark';
@@ -167,18 +168,29 @@ export function addThemeVarsToHtml(tokens: App.Theme.BaseToken, darkTokens: App.
  * @param darkMode Is dark mode
  */
 export function toggleCssDarkMode(darkMode = false) {
-  function addDarkClass() {
-    document.documentElement.classList.add(DARK_CLASS);
-  }
-
-  function removeDarkClass() {
-    document.documentElement.classList.remove(DARK_CLASS);
-  }
+  const { add, remove } = toggleHtmlClass(DARK_CLASS);
 
   if (darkMode) {
-    addDarkClass();
+    add();
   } else {
-    removeDarkClass();
+    remove();
+  }
+}
+
+/**
+ * Toggle grayscale mode
+ *
+ * @param grayscaleMode Is grayscale mode
+ */
+export function toggleGrayscaleMode(grayscaleMode = false) {
+  const GRAYSCALE_CLASS = 'grayscale';
+
+  const { add, remove } = toggleHtmlClass(GRAYSCALE_CLASS);
+
+  if (grayscaleMode) {
+    add();
+  } else {
+    remove();
   }
 }