feat(mobile): disable swipe back gesture when there is no back in header (#8876)

close AF-1663, AF-1756

- new global `ModalConfigContext`
- new logic to judge whether inside modal
- render `✕` for PageHeader back if inside modal
- only enable `NavigationGesture` when there is `<` in PageHeader

packages/frontend/apps/ios/App/App.xcodeproj/project.pbxproj

@@ -18,6 +18,7 @@
 		9D90BE2D2CCB9876006677DB /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9D90BE222CCB9876006677DB /* Main.storyboard */; };
 		9D90BE2E2CCB9876006677DB /* public in Resources */ = {isa = PBXBuildFile; fileRef = 9D90BE232CCB9876006677DB /* public */; };
 		C4C413792CBE705D00337889 /* Pods_App.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AF277DCFFFF123FFC6DF26C7 /* Pods_App.framework */; };
+		E93B276C2CED92B1001409B8 /* NavigationGesturePlugin.swift in Sources */ = {isa = PBXBuildFile; fileRef = E93B276B2CED92B1001409B8 /* NavigationGesturePlugin.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -35,6 +36,7 @@
 		9D90BE232CCB9876006677DB /* public */ = {isa = PBXFileReference; lastKnownFileType = folder; path = public; sourceTree = "<group>"; };
 		AF277DCFFFF123FFC6DF26C7 /* Pods_App.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_App.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		AF51FD2D460BCFE21FA515B2 /* Pods-App.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-App.release.xcconfig"; path = "Pods/Target Support Files/Pods-App/Pods-App.release.xcconfig"; sourceTree = "<group>"; };
+		E93B276B2CED92B1001409B8 /* NavigationGesturePlugin.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NavigationGesturePlugin.swift; sourceTree = "<group>"; };
 		FC68EB0AF532CFC21C3344DD /* Pods-App.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-App.debug.xcconfig"; path = "Pods/Target Support Files/Pods-App/Pods-App.debug.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
@@ -65,7 +67,6 @@
 				504EC3051FED79650016851F /* Products */,
 				7F8756D8B27F46E3366F6CEA /* Pods */,
 				27E2DDA53C4D2A4D1A88CE4A /* Frameworks */,
-				9D6A85312CCF6D6B00DAB35F /* Recovered References */,
 			);
 			indentWidth = 2;
 			sourceTree = "<group>";
@@ -101,6 +102,7 @@
 		9D90BE1A2CCB9876006677DB /* plugins */ = {
 			isa = PBXGroup;
 			children = (
+				E93B276A2CED9298001409B8 /* NavigationGesture */,
 				9D90BE192CCB9876006677DB /* Cookie */,
 			);
 			path = plugins;
@@ -122,6 +124,14 @@
 			path = App;
 			sourceTree = "<group>";
 		};
+		E93B276A2CED9298001409B8 /* NavigationGesture */ = {
+			isa = PBXGroup;
+			children = (
+				E93B276B2CED92B1001409B8 /* NavigationGesturePlugin.swift */,
+			);
+			path = NavigationGesture;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -234,6 +244,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				E93B276C2CED92B1001409B8 /* NavigationGesturePlugin.swift in Sources */,
 				9D90BE252CCB9876006677DB /* CookieManager.swift in Sources */,
 				9D90BE262CCB9876006677DB /* CookiePlugin.swift in Sources */,
 				9D6A85332CCF6DA700DAB35F /* HashcashPlugin.swift in Sources */,

packages/frontend/apps/ios/App/App/AFFiNEViewController.swift

@@ -5,11 +5,13 @@ class AFFiNEViewController: CAPBridgeViewController {
 
   override func viewDidLoad() {
     super.viewDidLoad()
-    webView?.allowsBackForwardNavigationGestures = true
+    // disable by default, enable manually when there is a "back" button in page-header
+    webView?.allowsBackForwardNavigationGestures = false
   }
   
   override func capacitorDidLoad() {
     bridge?.registerPluginInstance(CookiePlugin())
     bridge?.registerPluginInstance(HashcashPlugin())
+    bridge?.registerPluginInstance(NavigationGesturePlugin())
   }
 }

packages/frontend/apps/ios/App/App/plugins/NavigationGesture/NavigationGesturePlugin.swift

@@ -0,0 +1,32 @@
+import Foundation
+import Capacitor
+
+@objc(NavigationGesturePlugin)
+public class NavigationGesturePlugin: CAPPlugin, CAPBridgedPlugin {
+  public let identifier = "NavigationGesturePlugin"
+  public let jsName = "NavigationGesture"
+  public let pluginMethods: [CAPPluginMethod] = [
+      CAPPluginMethod(name: "isEnabled", returnType: CAPPluginReturnPromise),
+      CAPPluginMethod(name: "enable", returnType: CAPPluginReturnPromise),
+      CAPPluginMethod(name: "disable", returnType: CAPPluginReturnPromise)
+  ]
+  
+  @objc func isEnabled(_ call: CAPPluginCall) {
+    let enabled = self.bridge?.webView?.allowsBackForwardNavigationGestures ?? true
+    call.resolve(["value": enabled])
+  }
+  
+  @objc func enable(_ call: CAPPluginCall) {
+    DispatchQueue.main.sync {
+      self.bridge?.webView?.allowsBackForwardNavigationGestures = true
+      call.resolve([:])
+    }
+  }
+  
+  @objc func disable(_ call: CAPPluginCall) {
+    DispatchQueue.main.sync {
+      self.bridge?.webView?.allowsBackForwardNavigationGestures = false
+      call.resolve([:])
+    }
+  }
+}

packages/frontend/apps/ios/src/app.tsx

@@ -1,6 +1,7 @@
 import { AffineContext } from '@affine/core/components/context';
 import { AppFallback } from '@affine/core/mobile/components/app-fallback';
 import { configureMobileModules } from '@affine/core/mobile/modules';
+import { NavigationGestureProvider } from '@affine/core/mobile/modules/navigation-gesture';
 import { VirtualKeyboardProvider } from '@affine/core/mobile/modules/virtual-keyboard';
 import { router } from '@affine/core/mobile/router';
 import { configureCommonModules } from '@affine/core/modules';
@@ -32,8 +33,10 @@ import { Suspense } from 'react';
 import { RouterProvider } from 'react-router-dom';
 
 import { configureFetchProvider } from './fetch';
+import { ModalConfigProvider } from './modal-config';
 import { Cookie } from './plugins/cookie';
 import { Hashcash } from './plugins/hashcash';
+import { NavigationGesture } from './plugins/navigation-gesture';
 
 const future = {
   v7_startTransition: true,
@@ -86,6 +89,11 @@ framework.impl(VirtualKeyboardProvider, {
     Keyboard.removeAllListeners();
   },
 });
+framework.impl(NavigationGestureProvider, {
+  isEnabled: () => NavigationGesture.isEnabled(),
+  enable: () => NavigationGesture.enable(),
+  disable: () => NavigationGesture.disable(),
+});
 const frameworkProvider = framework.provider();
 
 // setup application lifecycle events, and emit application start event
@@ -132,11 +140,13 @@ export function App() {
       <FrameworkRoot framework={frameworkProvider}>
         <I18nProvider>
           <AffineContext store={getCurrentStore()}>
-            <RouterProvider
-              fallbackElement={<AppFallback />}
-              router={router}
-              future={future}
-            />
+            <ModalConfigProvider>
+              <RouterProvider
+                fallbackElement={<AppFallback />}
+                router={router}
+                future={future}
+              />
+            </ModalConfigProvider>
           </AffineContext>
         </I18nProvider>
       </FrameworkRoot>

packages/frontend/apps/ios/src/modal-config.tsx

@@ -0,0 +1,28 @@
+import { ModalConfigContext } from '@affine/component';
+import { NavigationGestureService } from '@affine/core/mobile/modules/navigation-gesture';
+import { useService } from '@toeverything/infra';
+import { type PropsWithChildren, useCallback } from 'react';
+
+export const ModalConfigProvider = ({ children }: PropsWithChildren) => {
+  const navigationGesture = useService(NavigationGestureService);
+
+  const onOpenChange = useCallback(
+    (open: boolean) => {
+      const prev = navigationGesture.enabled$.value;
+      if (open && !prev) {
+        navigationGesture.setEnabled(false);
+        return () => {
+          navigationGesture.setEnabled(prev);
+        };
+      }
+      return;
+    },
+    [navigationGesture]
+  );
+
+  return (
+    <ModalConfigContext.Provider value={{ onOpenChange }}>
+      {children}
+    </ModalConfigContext.Provider>
+  );
+};

packages/frontend/apps/ios/src/plugins/navigation-gesture/definitions.ts

@@ -0,0 +1,5 @@
+export interface NavigationGesturePlugin {
+  isEnabled: () => Promise<boolean>;
+  enable: () => Promise<void>;
+  disable: () => Promise<void>;
+}

packages/frontend/apps/ios/src/plugins/navigation-gesture/index.ts

@@ -0,0 +1,9 @@
+import { registerPlugin } from '@capacitor/core';
+
+import type { NavigationGesturePlugin } from './definitions';
+
+const NavigationGesture =
+  registerPlugin<NavigationGesturePlugin>('NavigationGesture');
+
+export * from './definitions';
+export { NavigationGesture };

packages/frontend/component/src/ui/modal/context.ts

@@ -0,0 +1,11 @@
+import { createContext } from 'react';
+
+export interface ModalConfig {
+  /**
+   * add global callback for modal open/close
+   */
+  onOpenChange?: (open: boolean) => void;
+}
+export const ModalConfigContext = createContext<ModalConfig>({});
+
+export const InsideModalContext = createContext<number>(0);

packages/frontend/component/src/ui/modal/index.ts

@@ -1,4 +1,5 @@
 export * from './confirm-modal';
+export * from './context';
 export * from './modal';
 export * from './overlay-modal';
 export * from './prompt-modal';

packages/frontend/component/src/ui/modal/modal.tsx

@@ -10,12 +10,19 @@ import * as VisuallyHidden from '@radix-ui/react-visually-hidden';
 import { assignInlineVars } from '@vanilla-extract/dynamic';
 import clsx from 'clsx';
 import type { CSSProperties } from 'react';
-import { forwardRef, useCallback, useEffect, useState } from 'react';
+import {
+  forwardRef,
+  useCallback,
+  useContext,
+  useEffect,
+  useState,
+} from 'react';
 
 import { startScopedViewTransition } from '../../utils';
 import type { IconButtonProps } from '../button';
 import { IconButton } from '../button';
 import { SafeArea } from '../safe-area';
+import { InsideModalContext, ModalConfigContext } from './context';
 import * as styles from './styles.css';
 
 export interface ModalProps extends DialogProps {
@@ -123,6 +130,7 @@ function createContainer() {
 
 export const ModalInner = forwardRef<HTMLDivElement, ModalProps>(
   (props, ref) => {
+    const modalConfig = useContext(ModalConfigContext);
     const {
       modal,
       portalOptions,
@@ -164,6 +172,10 @@ export const ModalInner = forwardRef<HTMLDivElement, ModalProps>(
       null
     );
 
+    useEffect(() => {
+      modalConfig.onOpenChange?.(open ?? false);
+    }, [modalConfig, open]);
+
     useEffect(() => {
       if (open) {
         const container = createContainer();
@@ -304,10 +316,20 @@ export const ModalInner = forwardRef<HTMLDivElement, ModalProps>(
 ModalInner.displayName = 'ModalInner';
 
 export const Modal = forwardRef<HTMLDivElement, ModalProps>((props, ref) => {
+  const insideModal = useContext(InsideModalContext);
   if (!props.open) {
     return;
   }
-  return <ModalInner {...props} ref={ref} />;
+  return (
+    <InsideModalContext.Provider value={insideModal + 1}>
+      <ModalInner {...props} ref={ref} />
+    </InsideModalContext.Provider>
+  );
 });
 
 Modal.displayName = 'Modal';
+
+export const useIsInsideModal = () => {
+  const context = useContext(InsideModalContext);
+  return context > 0;
+};

packages/frontend/core/src/components/mobile/config-modal/index.tsx

@@ -1,4 +1,5 @@
 import { Button, Modal } from '@affine/component';
+import { PageHeader } from '@affine/core/mobile/components';
 import { useI18n } from '@affine/i18n';
 import clsx from 'clsx';
 import {
@@ -8,7 +9,6 @@ import {
   type ReactNode,
 } from 'react';
 
-import { PageHeader } from '../page-header';
 import * as styles from './styles.css';
 
 interface ConfigModalProps {

packages/frontend/core/src/components/mobile/index.ts

@@ -1,2 +1 @@
 export * from './config-modal';
-export * from './page-header';

packages/frontend/core/src/mobile/components/index.ts

@@ -1,5 +1,6 @@
 export * from './app-tabs';
 export * from './doc-card';
+export * from './page-header';
 export * from './rename';
 export * from './search-input';
 export * from './search-result';

packages/frontend/core/src/mobile/components/page-header/index.tsx

@@ -1,13 +1,16 @@
-import { IconButton, SafeArea } from '@affine/component';
-import { ArrowLeftSmallIcon } from '@blocksuite/icons/rc';
+import { IconButton, SafeArea, useIsInsideModal } from '@affine/component';
+import { ArrowLeftSmallIcon, CloseIcon } from '@blocksuite/icons/rc';
+import { useService } from '@toeverything/infra';
 import clsx from 'clsx';
 import {
   forwardRef,
   type HtmlHTMLAttributes,
   type ReactNode,
   useCallback,
+  useEffect,
 } from 'react';
 
+import { NavigationGestureService } from '../../modules/navigation-gesture';
 import * as styles from './styles.css';
 
 export interface PageHeaderProps
@@ -60,6 +63,20 @@ export const PageHeader = forwardRef<HTMLDivElement, PageHeaderProps>(
     },
     ref
   ) {
+    const navigationGesture = useService(NavigationGestureService);
+    const isInsideModal = useIsInsideModal();
+
+    useEffect(() => {
+      if (isInsideModal) return;
+
+      const prev = navigationGesture.enabled$.value;
+      navigationGesture.setEnabled(!!back);
+
+      return () => {
+        navigationGesture.setEnabled(prev);
+      };
+    }, [back, isInsideModal, navigationGesture]);
+
     const handleRouteBack = useCallback(() => {
       backAction ? backAction() : history.back();
     }, [backAction]);
@@ -83,7 +100,7 @@ export const PageHeader = forwardRef<HTMLDivElement, PageHeaderProps>(
                   size={24}
                   style={{ padding: 10 }}
                   onClick={handleRouteBack}
-                  icon={<ArrowLeftSmallIcon />}
+                  icon={isInsideModal ? <CloseIcon /> : <ArrowLeftSmallIcon />}
                   data-testid="page-header-back"
                 />
               ) : null}

packages/frontend/core/src/mobile/dialogs/selectors/generic-selector.tsx

@@ -5,7 +5,7 @@ import {
   Scrollable,
   useThemeColorMeta,
 } from '@affine/component';
-import { PageHeader } from '@affine/core/components/mobile';
+import { PageHeader } from '@affine/core/mobile/components';
 import { useI18n } from '@affine/i18n';
 import { ArrowRightSmallIcon } from '@blocksuite/icons/rc';
 import { cssVarV2 } from '@toeverything/theme/v2';

packages/frontend/core/src/mobile/modules/index.ts

@@ -1,9 +1,11 @@
 import type { Framework } from '@toeverything/infra';
 
+import { configureMobileNavigationGestureModule } from './navigation-gesture';
 import { configureMobileSearchModule } from './search';
 import { configureMobileVirtualKeyboardModule } from './virtual-keyboard';
 
 export function configureMobileModules(framework: Framework) {
   configureMobileSearchModule(framework);
   configureMobileVirtualKeyboardModule(framework);
+  configureMobileNavigationGestureModule(framework);
 }

packages/frontend/core/src/mobile/modules/navigation-gesture/index.ts

@@ -0,0 +1,13 @@
+import type { Framework } from '@toeverything/infra';
+
+import { NavigationGestureProvider } from './providers/navigation-gesture';
+import { NavigationGestureService } from './services/navigation-gesture';
+
+export { NavigationGestureProvider, NavigationGestureService };
+
+export function configureMobileNavigationGestureModule(framework: Framework) {
+  framework.service(
+    NavigationGestureService,
+    f => new NavigationGestureService(f.getOptional(NavigationGestureProvider))
+  );
+}

packages/frontend/core/src/mobile/modules/navigation-gesture/providers/navigation-gesture.ts

@@ -0,0 +1,10 @@
+import { createIdentifier } from '@toeverything/infra';
+
+export interface NavigationGestureProvider {
+  isEnabled: () => Promise<boolean>;
+  enable: () => Promise<void>;
+  disable: () => Promise<void>;
+}
+
+export const NavigationGestureProvider =
+  createIdentifier<NavigationGestureProvider>('NavigationGestureProvider');

packages/frontend/core/src/mobile/modules/navigation-gesture/services/navigation-gesture.ts

@@ -0,0 +1,58 @@
+import { DebugLogger } from '@affine/debug';
+import {
+  effect,
+  exhaustMapWithTrailing,
+  fromPromise,
+  LiveData,
+  Service,
+} from '@toeverything/infra';
+import { catchError, distinctUntilChanged, EMPTY, mergeMap } from 'rxjs';
+
+import type { NavigationGestureProvider } from '../providers/navigation-gesture';
+
+const logger = new DebugLogger('affine:navigation-gesture');
+
+export class NavigationGestureService extends Service {
+  public enabled$ = new LiveData(false);
+
+  constructor(
+    private readonly navigationGestureProvider?: NavigationGestureProvider
+  ) {
+    super();
+  }
+
+  setEnabled = effect(
+    distinctUntilChanged<boolean>(),
+    exhaustMapWithTrailing((enable: boolean) => {
+      return fromPromise(async () => {
+        if (!this.navigationGestureProvider) {
+          return;
+        }
+        if (enable) {
+          await this.enable();
+        } else {
+          await this.disable();
+        }
+        return;
+      }).pipe(
+        mergeMap(() => EMPTY),
+        catchError(err => {
+          logger.error('navigationGestureProvider error', err);
+          return EMPTY;
+        })
+      );
+    })
+  );
+
+  async enable() {
+    this.enabled$.next(true);
+    logger.debug(`Enable navigation gesture`);
+    return this.navigationGestureProvider?.enable();
+  }
+
+  async disable() {
+    this.enabled$.next(false);
+    logger.debug(`Disable navigation gesture`);
+    return this.navigationGestureProvider?.disable();
+  }
+}

packages/frontend/core/src/mobile/pages/workspace/detail/mobile-detail-page.tsx

@@ -7,9 +7,9 @@ import { useDocMetaHelper } from '@affine/core/components/hooks/use-block-suite-
 import { usePageDocumentTitle } from '@affine/core/components/hooks/use-global-state';
 import { useJournalRouteHelper } from '@affine/core/components/hooks/use-journal';
 import { useNavigateHelper } from '@affine/core/components/hooks/use-navigate-helper';
-import { PageHeader } from '@affine/core/components/mobile';
 import { PageDetailEditor } from '@affine/core/components/page-detail-editor';
 import { DetailPageWrapper } from '@affine/core/desktop/pages/workspace/detail-page/detail-page-wrapper';
+import { PageHeader } from '@affine/core/mobile/components';
 import { EditorService } from '@affine/core/modules/editor';
 import { JournalService } from '@affine/core/modules/journal';
 import { WorkbenchService } from '@affine/core/modules/workbench';
@@ -202,19 +202,22 @@ const DetailPageImpl = () => {
   );
 };
 
-const skeleton = (
+const getSkeleton = (back: boolean) => (
   <>
-    <PageHeader back className={styles.header} />
+    <PageHeader back={back} className={styles.header} />
     <PageDetailSkeleton />
   </>
 );
-
-const notFound = (
+const getNotFound = (back: boolean) => (
   <>
-    <PageHeader back className={styles.header} />
+    <PageHeader back={back} className={styles.header} />
     Page Not Found (TODO)
   </>
 );
+const skeleton = getSkeleton(false);
+const skeletonWithBack = getSkeleton(true);
+const notFound = getNotFound(false);
+const notFoundWithBack = getNotFound(true);
 
 const MobileDetailPage = ({
   pageId,
@@ -237,12 +240,12 @@ const MobileDetailPage = ({
   return (
     <div className={styles.root}>
       <DetailPageWrapper
-        skeleton={skeleton}
-        notFound={notFound}
+        skeleton={date ? skeleton : skeletonWithBack}
+        notFound={date ? notFound : notFoundWithBack}
         pageId={pageId}
       >
         <PageHeader
-          back
+          back={!date}
           className={styles.header}
           suffix={
             <>

packages/frontend/core/src/mobile/views/all-docs/collection/detail.tsx

@@ -1,7 +1,7 @@
 import { IconButton, MobileMenu } from '@affine/component';
 import { EmptyCollectionDetail } from '@affine/core/components/affine/empty';
-import { PageHeader } from '@affine/core/components/mobile';
 import { isEmptyCollection } from '@affine/core/desktop/pages/workspace/collection';
+import { PageHeader } from '@affine/core/mobile/components';
 import type { Collection } from '@affine/env/filter';
 import { MoreHorizontalIcon, ViewLayersIcon } from '@blocksuite/icons/rc';
 

packages/frontend/core/src/mobile/views/all-docs/tag/detail-header.tsx

@@ -1,5 +1,5 @@
 import { IconButton, MobileMenu } from '@affine/component';
-import { PageHeader } from '@affine/core/components/mobile';
+import { PageHeader } from '@affine/core/mobile/components';
 import type { Tag } from '@affine/core/modules/tag';
 import { MoreHorizontalIcon } from '@blocksuite/icons/rc';
 import { useLiveData } from '@toeverything/infra';