style: improve the support of disabled backdrop effects

apps/client/src/stylesheets/style.css

@@ -28,6 +28,28 @@
     --ck-mention-list-max-height: 500px;
 }
 
+body#trilium-app.motion-disabled *,
+body#trilium-app.motion-disabled *::before,
+body#trilium-app.motion-disabled *::after {
+    /* Disable transitions and animations */
+    transition: none !important;
+    animation: none !important;
+}
+
+body#trilium-app.shadows-disabled *,
+body#trilium-app.shadows-disabled *::before,
+body#trilium-app.shadows-disabled *::after {
+    /* Disable shadows */
+    box-shadow: none !important;
+}
+
+body#trilium-app.backdrop-effects-disabled *,
+body#trilium-app.backdrop-effects-disabled *::before,
+body#trilium-app.backdrop-effects-disabled *::after {
+    /* Disable backdrop effects */
+    backdrop-filter: none !important;
+}
+
 .table {
     --bs-table-bg: transparent !important;
 }
@@ -355,7 +377,7 @@ body.desktop .tabulator-popup-container {
 
 @supports (animation-fill-mode: forwards) {
     /* Delay the opening of submenus */
-    body.desktop .dropdown-submenu .dropdown-menu {
+    body.desktop:not(.motion-disabled) .dropdown-submenu .dropdown-menu {
         opacity: 0;
         animation-fill-mode: forwards;
         animation-delay: var(--submenu-opening-delay);

apps/client/src/stylesheets/theme-next-dark.css

@@ -89,6 +89,7 @@
 
     --menu-text-color: #e3e3e3;
     --menu-background-color: #222222d9;
+    --menu-background-color-no-backdrop: #1b1b1b;
     --menu-item-icon-color: #8c8c8c;
     --menu-item-disabled-opacity: 0.5;
     --menu-item-keyboard-shortcut-color: #ffffff8f;

apps/client/src/stylesheets/theme-next-light.css

@@ -83,6 +83,7 @@
 
     --menu-text-color: #272727;
     --menu-background-color: #ffffffd9;
+    --menu-background-color-no-backdrop: #fdfdfd;
     --menu-item-icon-color: #727272;
     --menu-item-disabled-opacity: 0.6;
     --menu-item-keyboard-shortcut-color: #666666a8;

apps/client/src/stylesheets/theme-next/base.css

@@ -83,6 +83,12 @@
     --tab-note-icons: true;
 }
 
+body.backdrop-effects-disabled {
+    /* Backdrop effects are disabled, replace the menu background color with the
+     * no-backdrop fallback color */
+    --menu-background-color: var(--menu-background-color-no-backdrop);
+}
+
 /*
  * MENUS
  *

apps/client/src/translations/en/translation.json

@@ -1113,6 +1113,12 @@
     "layout-vertical-description": "launcher bar is on the left (default)",
     "layout-horizontal-description": "launcher bar is underneath the tab bar, the tab bar is now full width."
   },
+  "ui-performance": {
+    "title": "Performance",
+    "enable-motion": "Enable transitions and animations",
+    "enable-shadows": "Enable shadows",
+    "enable-backdrop-effects": "Enable background effects for menus, popups and panels"
+  },
   "ai_llm": {
     "not_started": "Not started",
     "title": "AI Settings",

apps/client/src/widgets/containers/root_container.ts

@@ -1,6 +1,8 @@
-import utils from "../../services/utils.js";
-import type BasicWidget from "../basic_widget.js";
+import { EventData } from "../../components/app_context.js";
 import FlexContainer from "./flex_container.js";
+import options from "../../services/options.js";
+import type BasicWidget from "../basic_widget.js";
+import utils from "../../services/utils.js";
 
 /**
  * The root container is the top-most widget/container, from which the entire layout derives.
@@ -20,6 +22,7 @@ export default class RootContainer extends FlexContainer<BasicWidget> {
         this.id("root-widget");
         this.css("height", "100dvh");
         this.originalViewportHeight = getViewportHeight();
+        
     }
 
     render(): JQuery<HTMLElement> {
@@ -27,15 +30,45 @@ export default class RootContainer extends FlexContainer<BasicWidget> {
             window.visualViewport?.addEventListener("resize", () => this.#onMobileResize());
         }
 
+        this.#setMotion(options.is("motionEnabled"));
+        this.#setShadows(options.is("shadowsEnabled"));
+        this.#setBackdropEffects(options.is("backdropEffectsEnabled"));
+
         return super.render();
     }
 
+    entitiesReloadedEvent({ loadResults }: EventData<"entitiesReloaded">) {
+        if (loadResults.isOptionReloaded("motionEnabled")) {
+            this.#setMotion(options.is("motionEnabled"));
+        }
+
+        if (loadResults.isOptionReloaded("shadowsEnabled")) {
+            this.#setShadows(options.is("shadowsEnabled"));
+        }
+
+        if (loadResults.isOptionReloaded("backdropEffectsEnabled")) {
+            this.#setBackdropEffects(options.is("backdropEffectsEnabled"));
+        }
+    }
+
     #onMobileResize() {
         const currentViewportHeight = getViewportHeight();
         const isKeyboardOpened = (currentViewportHeight < this.originalViewportHeight);
         this.$widget.toggleClass("virtual-keyboard-opened", isKeyboardOpened);
     }
 
+    #setMotion(enabled: boolean) {
+        document.body.classList.toggle("motion-disabled", !enabled);
+        jQuery.fx.off = !enabled;
+    }
+
+    #setShadows(enabled: boolean) {
+        document.body.classList.toggle("shadows-disabled", !enabled);
+    }
+
+    #setBackdropEffects(enabled: boolean) {
+        document.body.classList.toggle("backdrop-effects-disabled", !enabled);
+    }
 }
 
 function getViewportHeight() {

apps/client/src/widgets/type_widgets/options/appearance.tsx

@@ -88,6 +88,7 @@ export default function AppearanceSettings() {
             <ApplicationTheme />
             {overrideThemeFonts === "true" && <Fonts />}
             {isElectron() && <ElectronIntegration /> }
+            <Performance />
             <MaxContentWidth />
             <RelatedSettings items={[
                 {
@@ -245,6 +246,35 @@ function ElectronIntegration() {
     )
 }
 
+function Performance() {
+    const [ motionEnabled, setMotionEnabled ] = useTriliumOptionBool("motionEnabled");
+    const [ shadowsEnabled, setShadowsEnabled ] = useTriliumOptionBool("shadowsEnabled");
+    const [ backdropEffectsEnabled, setBackdropEffectsEnabled ] = useTriliumOptionBool("backdropEffectsEnabled");
+
+
+    return <OptionsSection title={t("ui-performance.title")}>
+        <FormGroup name="motion-enabled">
+            <FormCheckbox
+                label={t("ui-performance.enable-motion")}
+                currentValue={motionEnabled} onChange={setMotionEnabled}
+            />
+        </FormGroup>
+        <FormGroup name="shadows-enabled">
+            <FormCheckbox
+                label={t("ui-performance.enable-shadows")}
+                currentValue={shadowsEnabled} onChange={setShadowsEnabled}
+            />
+        </FormGroup>
+        <FormGroup name="backdrop-effects-enabled">
+            <FormCheckbox
+                label={t("ui-performance.enable-backdrop-effects")}
+                currentValue={backdropEffectsEnabled} onChange={setBackdropEffectsEnabled}
+            />
+        </FormGroup>
+    </OptionsSection>
+}
+
+
 function MaxContentWidth() {
     const [ maxContentWidth, setMaxContentWidth ] = useTriliumOption("maxContentWidth");
 

apps/server/src/assets/views/desktop.ejs

@@ -9,7 +9,7 @@
     <link rel="manifest" crossorigin="use-credentials" href="manifest.webmanifest">
     <title>Trilium Notes</title>
 </head>
-<body class="desktop heading-style-<%= headingStyle %> layout-<%= layoutOrientation %> platform-<%= platform %> <%= isElectron ? 'electron' : '' %> <%= hasNativeTitleBar ? 'native-titlebar' : '' %> <%= hasBackgroundEffects ? 'background-effects' : '' %>">
+<body id="trilium-app" class="desktop heading-style-<%= headingStyle %> layout-<%= layoutOrientation %> platform-<%= platform %> <%= isElectron ? 'electron' : '' %> <%= hasNativeTitleBar ? 'native-titlebar' : '' %> <%= hasBackgroundEffects ? 'background-effects' : '' %>">
 <noscript><%= t("javascript-required") %></noscript>
 
 <script>

apps/server/src/routes/api/options.ts

@@ -63,6 +63,9 @@ const ALLOWED_OPTIONS = new Set<OptionNames>([
     "dailyBackupEnabled",
     "weeklyBackupEnabled",
     "monthlyBackupEnabled",
+    "motionEnabled",
+    "shadowsEnabled",
+    "backdropEffectsEnabled",
     "maxContentWidth",
     "compressImages",
     "downloadImagesAutomatically",

apps/server/src/services/options_init.ts

@@ -152,6 +152,10 @@ const defaultOptions: DefaultOption[] = [
         },
         isSynced: false
     },
+    { name: "motionEnabled", value: "true", isSynced: false },
+    { name: "shadowsEnabled", value: "true", isSynced: false },
+    { name: "backdropEffectsEnabled", value: "true", isSynced: false },
+
 
     // Internationalization
     { name: "locale", value: "en", isSynced: true },

packages/commons/src/lib/options_interface.ts

@@ -93,6 +93,9 @@ export interface OptionDefinitions extends KeyboardShortcutsOptions<KeyboardActi
 
     // Appearance
     splitEditorOrientation: "horziontal" | "vertical";
+    motionEnabled: boolean;
+    shadowsEnabled: boolean;
+    backdropEffectsEnabled: boolean;
     codeNoteTheme: string;
 
     initialized: boolean;