feat(navigation): persist view params customisation

apps/client/src/common/components/navigation-menu/ViewNavigationMenu.tsx

@@ -1,6 +1,8 @@
 import { useDisclosure, useHotkeys } from '@mantine/hooks';
 import { memo } from 'react';
+import { useSearchParams } from 'react-router';
 
+import { hasCustomParams, useSavedViewParams } from '../../stores/savedViewParams';
 import { useViewParamsEditorStore } from '../view-params-editor/viewParamsEditor.store';
 import FloatingNavigation from './floating-navigation/FloatingNavigation';
 import NavigationMenu from './NavigationMenu';
@@ -17,6 +19,9 @@ export default memo(ViewNavigationMenu);
 function ViewNavigationMenu({ isNavigationLocked, suppressSettings }: ViewNavigationMenuProps) {
   const [isMenuOpen, menuHandler] = useDisclosure();
   const { open: showEditFormDrawer } = useViewParamsEditorStore();
+  const [searchParams] = useSearchParams();
+  const savedParams = useSavedViewParams((store) => store.params);
+  const hasSavedChanges = hasCustomParams(searchParams) || Object.keys(savedParams).length > 0;
 
   useHotkeys([
     [
@@ -46,6 +51,7 @@ function ViewNavigationMenu({ isNavigationLocked, suppressSettings }: ViewNaviga
       <FloatingNavigation
         toggleMenu={isNavigationLocked ? undefined : menuHandler.toggle}
         toggleSettings={suppressSettings ? undefined : showEditFormDrawer}
+        hasSavedChanges={hasSavedChanges}
       />
       {!isNavigationLocked && <NavigationMenu isOpen={isMenuOpen} onClose={menuHandler.close} />}
     </>

apps/client/src/common/components/navigation-menu/client-link/ClientLink.module.scss

@@ -1,4 +1,29 @@
-.linkIcon {
+.trailing {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.5rem;
   margin-left: auto;
+}
+
+.linkIcon {
   @include rotate-fourty-five;
 }
+
+.indicator {
+  width: 0.5rem;
+  height: 0.5rem;
+  border-radius: 50%;
+  background-color: $active-indicator;
+  pointer-events: none;
+  flex-shrink: 0;
+}
+
+.clear {
+  opacity: 0.6;
+  transition: opacity $transition-time-action;
+
+  &:hover,
+  &:focus-visible {
+    opacity: 1;
+  }
+}

apps/client/src/common/components/navigation-menu/client-link/ClientLink.tsx

@@ -1,9 +1,16 @@
-import { PropsWithChildren } from 'react';
+import { MouseEvent, PropsWithChildren } from 'react';
-import { IoArrowUp } from 'react-icons/io5';
+import { IoArrowUp, IoCloseOutline } from 'react-icons/io5';
-import { useNavigate } from 'react-router';
+import { useLocation, useNavigate, useSearchParams } from 'react-router';
 
 import { useElectronEvent } from '../../../hooks/useElectronEvent';
+import {
+  hasCustomParams,
+  reservedParams,
+  stripReservedParams,
+  useSavedViewParams,
+} from '../../../stores/savedViewParams';
 import { handleLinks } from '../../../utils/linkUtils';
+import IconButton from '../../buttons/IconButton';
 import NavigationMenuItem from '../navigation-menu-item/NavigationMenuItem';
 
 import style from './ClientLink.module.scss';
@@ -16,32 +23,100 @@ interface ClientLinkProps {
 
 export default function ClientLink({ current, to, postAction, children }: PropsWithChildren<ClientLinkProps>) {
   const { isElectron } = useElectronEvent();
-  const navigate = useNavigate();
 
   if (isElectron) {
     return (
-      <NavigationMenuItem
+      <ElectronNavigationItem current={current} to={to} postAction={postAction}>
-        active={current}
-        onClick={() => {
-          handleLinks(to);
-          postAction?.();
-        }}
-      >
         {children}
-        <IoArrowUp className={style.linkIcon} />
+      </ElectronNavigationItem>
-      </NavigationMenuItem>
     );
   }
 
   return (
-    <NavigationMenuItem
+    <BrowserNavigationItem current={current} to={to} postAction={postAction}>
-      active={current}
-      onClick={() => {
-        navigate(`/${to}`);
-        postAction?.();
-      }}
-    >
       {children}
+    </BrowserNavigationItem>
+  );
+}
+
+function ElectronNavigationItem({ current, to, postAction, children }: PropsWithChildren<ClientLinkProps>) {
+  const navigateToLink = () => {
+    handleLinks(to);
+    postAction?.();
+  };
+
+  return (
+    <NavigationMenuItem active={current} onClick={navigateToLink}>
+      {children}
+      <span className={style.trailing}>
+        <IoArrowUp className={style.linkIcon} />
+      </span>
+    </NavigationMenuItem>
+  );
+}
+
+function BrowserNavigationItem({ current, to, postAction, children }: PropsWithChildren<ClientLinkProps>) {
+  const navigate = useNavigate();
+  const location = useLocation();
+  const [searchParams, setSearchParams] = useSearchParams();
+  const { params: savedParams, save, clear } = useSavedViewParams();
+
+  /**
+   * Save the params of the view we are leaving and resolve the destination,
+   * restoring any params previously saved for the target view.
+   */
+  const resolveDestination = () => {
+    const currentView = location.pathname.replace(/^\//, '');
+    save(currentView, stripReservedParams(location.search));
+    const restored = savedParams[to];
+    return `${to}${restored ? `?${restored}` : ''}`;
+  };
+
+  const isCustomised = current ? hasCustomParams(searchParams) : Boolean(savedParams[to]);
+
+  const navigateToLink = () => {
+    const destination = resolveDestination();
+    navigate(`/${destination}`);
+    postAction?.();
+  };
+
+  /**
+   * Clear the saved settings for this route without navigating to it.
+   * When it is the current view, also reset the live URL to its defaults.
+   */
+  const clearViewSettings = (event: MouseEvent) => {
+    event.stopPropagation();
+    clear(to);
+
+    // if mounted, clear the URL params
+    if (current) {
+      const preserved = new URLSearchParams();
+      reservedParams.forEach((key) => {
+        const value = searchParams.get(key);
+        if (value !== null) preserved.set(key, value);
+      });
+      setSearchParams(preserved);
+    }
+  };
+
+  return (
+    <NavigationMenuItem active={current} onClick={navigateToLink}>
+      {children}
+      {isCustomised && (
+        <span className={style.trailing}>
+          <span className={style.indicator} aria-hidden data-testid='client-link__saved-indicator' />
+          <IconButton
+            variant='ghosted-white'
+            size='small'
+            className={style.clear}
+            aria-label='Clear saved view settings'
+            title='Clear saved view settings'
+            onClick={clearViewSettings}
+          >
+            <IoCloseOutline />
+          </IconButton>
+        </span>
+      )}
     </NavigationMenuItem>
   );
 }

apps/client/src/common/components/navigation-menu/floating-navigation/FloatingNavigation.module.scss

@@ -22,3 +22,19 @@
   top: 0;
   z-index: $zindex-nav;
 }
+
+.buttonWithIndicator {
+  position: relative;
+  display: inline-flex;
+}
+
+.indicator {
+  position: absolute;
+  top: -0.15rem;
+  right: -0.15rem;
+  width: 0.6rem;
+  height: 0.6rem;
+  border-radius: 50%;
+  background-color: $active-indicator;
+  pointer-events: none;
+}

apps/client/src/common/components/navigation-menu/floating-navigation/FloatingNavigation.tsx

@@ -9,9 +9,10 @@ import style from './FloatingNavigation.module.scss';
 interface FloatingNavigationProps {
   toggleMenu?: () => void;
   toggleSettings?: () => void;
+  hasSavedChanges?: boolean;
 }
 
-export default function FloatingNavigation({ toggleMenu, toggleSettings }: FloatingNavigationProps) {
+export default function FloatingNavigation({ toggleMenu, toggleSettings, hasSavedChanges }: FloatingNavigationProps) {
   const isButtonShown = useFadeOutOnInactivity(true);
 
   return (
@@ -20,15 +21,18 @@ export default function FloatingNavigation({ toggleMenu, toggleSettings }: Float
       className={cx([style.fadeable, style.buttonContainer, !isButtonShown && style.hidden])}
     >
       {toggleMenu && (
-        <IconButton
+        <div className={style.buttonWithIndicator}>
-          variant='subtle-white'
+          <IconButton
-          size='xlarge'
+            variant='subtle-white'
-          onClick={toggleMenu}
+            size='xlarge'
-          aria-label='toggle menu'
+            onClick={toggleMenu}
-          data-testid='navigation__toggle-menu'
+            aria-label='toggle menu'
-        >
+            data-testid='navigation__toggle-menu'
-          <IoApps />
+          >
-        </IconButton>
+            <IoApps />
+          </IconButton>
+          {hasSavedChanges && <span className={style.indicator} data-testid='navigation__saved-indicator' />}
+        </div>
       )}
       {toggleSettings && (
         <IconButton

apps/client/src/common/stores/__tests__/savedViewParams.test.ts

@@ -0,0 +1,87 @@
+import { hasCustomParams, stripReservedParams, useSavedViewParams } from '../savedViewParams';
+
+describe('savedViewParams store', () => {
+  beforeEach(() => {
+    useSavedViewParams.getState().clearAll();
+  });
+
+  it('saves and restores params per view', () => {
+    useSavedViewParams.getState().save('timer', 'hideSeconds=true');
+    useSavedViewParams.getState().save('backstage', 'showProgress=false');
+
+    expect(useSavedViewParams.getState().params.timer).toBe('hideSeconds=true');
+    expect(useSavedViewParams.getState().params.backstage).toBe('showProgress=false');
+  });
+
+  it('overwrites the saved params for a view on subsequent saves', () => {
+    useSavedViewParams.getState().save('timer', 'hideSeconds=true');
+    useSavedViewParams.getState().save('timer', 'hideSeconds=false');
+
+    expect(useSavedViewParams.getState().params.timer).toBe('hideSeconds=false');
+  });
+
+  it('does not store an entry for an empty search string', () => {
+    useSavedViewParams.getState().save('timer', '');
+
+    expect(useSavedViewParams.getState().params).toEqual({});
+  });
+
+  it('removes a previously saved entry when saved with an empty search string', () => {
+    useSavedViewParams.getState().save('timer', 'hideSeconds=true');
+    useSavedViewParams.getState().save('timer', '');
+
+    expect(useSavedViewParams.getState().params).toEqual({});
+  });
+
+  it('ignores empty view keys', () => {
+    useSavedViewParams.getState().save('', 'hideSeconds=true');
+
+    expect(useSavedViewParams.getState().params).toEqual({});
+  });
+
+  it('clears the saved params for a single view without touching others', () => {
+    useSavedViewParams.getState().save('timer', 'hideSeconds=true');
+    useSavedViewParams.getState().save('backstage', 'showProgress=false');
+    useSavedViewParams.getState().clear('timer');
+
+    expect(useSavedViewParams.getState().params).toEqual({ backstage: 'showProgress=false' });
+  });
+
+  it('is a no-op when clearing a view without saved params', () => {
+    useSavedViewParams.getState().save('backstage', 'showProgress=false');
+    useSavedViewParams.getState().clear('timer');
+
+    expect(useSavedViewParams.getState().params).toEqual({ backstage: 'showProgress=false' });
+  });
+
+  it('clears all saved params', () => {
+    useSavedViewParams.getState().save('timer', 'hideSeconds=true');
+    useSavedViewParams.getState().clearAll();
+
+    expect(useSavedViewParams.getState().params).toEqual({});
+  });
+});
+
+describe('stripReservedParams', () => {
+  it('removes reserved auth/preset params while keeping view customisation', () => {
+    expect(stripReservedParams('hideSeconds=true&token=abc&n=1&alias=my')).toBe('hideSeconds=true');
+  });
+
+  it('returns an empty string when only reserved params are present', () => {
+    expect(stripReservedParams('token=abc&n=1&alias=my')).toBe('');
+  });
+});
+
+describe('hasCustomParams', () => {
+  it('is true when a non-reserved param is present', () => {
+    expect(hasCustomParams(new URLSearchParams('hideSeconds=true&token=abc'))).toBe(true);
+  });
+
+  it('is false when only reserved params are present', () => {
+    expect(hasCustomParams(new URLSearchParams('token=abc&n=1&alias=my'))).toBe(false);
+  });
+
+  it('is false when there are no params', () => {
+    expect(hasCustomParams(new URLSearchParams(''))).toBe(false);
+  });
+});

apps/client/src/common/stores/savedViewParams.ts

@@ -0,0 +1,62 @@
+import { create } from 'zustand';
+
+// params that are auth/preset markers, not user view customisation (see common/utils/urlPresets.ts)
+export const reservedParams = new Set(['token', 'n', 'alias']);
+
+interface SavedViewParamsStore {
+  params: Record<string, string>; // view key (e.g. "timer") -> search string without leading "?"
+  save: (view: string, search: string) => void;
+  clear: (view: string) => void;
+  clearAll: () => void;
+}
+
+/**
+ * Remembers the last view parameters used for each view so they can be
+ * restored when the user navigates back to that view through the menu.
+ * In-memory only: persists across SPA navigation, resets on a full page reload.
+ */
+export const useSavedViewParams = create<SavedViewParamsStore>((set) => ({
+  params: {},
+  save: (view, search) =>
+    set((state) => {
+      // ignore empty view keys and do not store empty entries, so the
+      // "saved changes" indicator only reflects genuine customisation
+      if (!view) return state;
+      const params = { ...state.params };
+      if (search) {
+        params[view] = search;
+      } else {
+        delete params[view];
+      }
+      return { params };
+    }),
+  clear: (view) =>
+    set((state) => {
+      if (!state.params[view]) return state;
+      const params = { ...state.params };
+      delete params[view];
+      return { params };
+    }),
+  clearAll: () => set({ params: {} }),
+}));
+
+/**
+ * Removes reserved (auth/preset) params from a search string, keeping only
+ * genuine view customisation.
+ */
+export function stripReservedParams(search: string): string {
+  const sp = new URLSearchParams(search);
+  reservedParams.forEach((key) => sp.delete(key));
+  return sp.toString();
+}
+
+/**
+ * Whether the search params contain any genuine view customisation,
+ * ignoring reserved params.
+ */
+export function hasCustomParams(searchParams: URLSearchParams): boolean {
+  for (const key of searchParams.keys()) {
+    if (!reservedParams.has(key)) return true;
+  }
+  return false;
+}

apps/client/src/common/utils/linkUtils.ts

@@ -37,7 +37,12 @@ export function handleLinks(
   event?.preventDefault();
 
   const destination = new URL(externalServerUrl);
-  destination.pathname = externalBaseURI ? `${externalBaseURI}/${location}` : location;
+  // split off any query string so it is not encoded into the pathname
+  const [pathname, search] = location.split('?');
+  destination.pathname = externalBaseURI ? `${externalBaseURI}/${pathname}` : pathname;
+  if (search) {
+    destination.search = search;
+  }
   openLink(destination.toString());
 }