Add support for iOS widgets. - #9077
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Included review availability: Your plan provides up to 10 included reviews per hour; 8 remain after this review. 📝 WalkthroughWalkthroughAdds an iOS WidgetKit extension for Lantern VPN. The change includes shared VPN state, widget and Control Center controls, VPN lifecycle synchronization, widget location updates, assets, entitlements, and Xcode target wiring. ChangesLantern VPN widget
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~60 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant Widget as LanternVPNWidget
participant Intent as VPNIntentBridge
participant VPN as VPNManager
participant Tunnel as PacketTunnelProvider
participant Store as VPNWidgetStore
Widget->>Intent: submit toggle action
Intent->>VPN: forward action
VPN->>Tunnel: start or stop tunnel
Tunnel->>Store: publish VPN status
Store->>Widget: reload widget timeline
Merge Risk: 🔵 Low · up to The new widget adds VPN controls and status presentation; the off-state switch may be difficult to distinguish from the dark widget card. The change is otherwise mergeable with bounded accessibility follow-up. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 39.53% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 43 functions across 15 files. (2 skipped: 2 unsupported.) ✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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🟡 Changes recommended
Unresolved critical and moderate findings affect buildability, VPN safety, state consistency, and location accuracy.
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Pull request overview
Adds iOS WidgetKit VPN status and control widgets, integrating Flutter location updates with shared native VPN state.
Changes:
- Adds home/lock-screen and iOS 18 Control Center widgets.
- Adds shared state, intents, tunnel controls, and location synchronization.
- Adds widget configuration, entitlements, adaptive views, and assets.
File summaries
| File | Reviewed change |
|---|---|
lib/lantern/lantern_service.dart |
Delegates widget location updates on iOS. |
lib/lantern/lantern_platform_service.dart |
Adds the native widget location method-channel call. |
lib/lantern/lantern_ffi_service.dart |
Provides desktop no-op behavior. |
lib/lantern/lantern_core_service.dart |
Extends the service contract for widget locations. |
lib/features/vpn/provider/server_location_notifier.dart |
Publishes server locations; Moderate (1 vote): auto mode may retain a stale manual city. |
ios/Tunnel/PacketTunnelProvider.swift |
Publishes tunnel lifecycle state; Critical (2 votes): failed connects may be reported as connected. |
ios/Shared/VPNWidgetState.swift |
Defines shared VPN state; Moderate (3 votes): concurrent updates can overwrite each other. |
ios/Shared/VPNWidgetIntents.swift |
Defines widget and Control Center VPN actions. |
ios/Runner/VPN/VPNManager.swift |
Bridges widget actions; Moderate (2 votes): .invalid auto-connect requests can be ignored. |
ios/Runner/VPN/Profile.swift |
Updates widget setup state. |
ios/Runner/Handlers/MethodHandler.swift |
Handles widget location updates. |
ios/Runner/AppDelegate.swift |
Installs the widget intent bridge. |
ios/Runner.xcodeproj/xcshareddata/xcschemes/LanternWidget.xcscheme |
Adds the widget development scheme. |
ios/Runner.xcodeproj/project.pbxproj |
Adds the widget target; Critical (3 votes): the hard-coded SDK path can break builds. |
ios/Podfile.lock |
Refreshes the Podfile checksum. |
ios/Podfile |
Adjusts pod deployment targets for compatibility. |
ios/LanternWidget/WidgetTunnelController.swift |
Controls widget VPN sessions; Critical (3 votes): fallback selection can control an unrelated VPN profile. |
ios/LanternWidget/Views/WidgetPalette.swift |
Defines widget colors. |
ios/LanternWidget/Views/WidgetBackgroundView.swift |
Provides widget backgrounds. |
ios/LanternWidget/Views/VPNWidgetPresentation.swift |
Formats VPN state and locations. |
ios/LanternWidget/Views/LanternWidgetEntryView.swift |
Implements family-specific layouts. |
ios/LanternWidget/LanternWidgetBundle.swift |
Registers the widget types. |
ios/LanternWidget/LanternWidget.entitlements |
Adds widget permissions. |
ios/LanternWidget/LanternVPNWidget.swift |
Implements the main VPN widget. |
ios/LanternWidget/LanternVPNControlWidget.swift |
Implements the iOS 18 control widget. |
ios/LanternWidget/Info.plist |
Configures the widget extension. |
ios/LanternWidget/Assets.xcassets/WidgetTextSecondary.colorset/Contents.json |
Defines secondary text colors. |
ios/LanternWidget/Assets.xcassets/WidgetTextPrimary.colorset/Contents.json |
Defines primary text colors. |
ios/LanternWidget/Assets.xcassets/WidgetBackground.colorset/Contents.json |
Defines widget background colors. |
ios/LanternWidget/Assets.xcassets/WidgetAccent.colorset/Contents.json |
Defines accent colors. |
ios/LanternWidget/Assets.xcassets/StatusPending.colorset/Contents.json |
Defines pending status colors. |
ios/LanternWidget/Assets.xcassets/StatusDisconnected.colorset/Contents.json |
Defines disconnected status colors. |
ios/LanternWidget/Assets.xcassets/StatusConnected.colorset/Contents.json |
Defines connected status colors. |
ios/LanternWidget/Assets.xcassets/LanternLogo.imageset/Contents.json |
Registers widget logo assets. |
ios/LanternWidget/Assets.xcassets/Contents.json |
Defines the widget asset catalog. |
Review details
Suppressed comments (1)
lib/features/vpn/provider/server_location_notifier.dart:169
- The auto branch still forwards
location.city, butswitchToAuto()preserves the previous manual location fields while changing onlyserverType. Selecting Smart Location after a private server can therefore publish the old private city together with the new auto country, andMethodHandlercombines them into a wrong widget label until the next location event. Publish the resolved auto city/display name or clear the stale manual fields before mirroring.
- Files reviewed: 34/38 changed files
- Comments generated: 5
- Review effort level: Lite
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Actionable comments posted: 10
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@ios/LanternWidget/LanternVPNControlWidget.swift`:
- Line 38: Update the widget control’s state derived from
WidgetTunnelController.reconciledState() so .connected and .connecting report
true, while .disconnected and .disconnecting report false; replace the direct
VPNWidgetStatus.isOn access with this explicit status mapping.
In `@ios/LanternWidget/Views/WidgetPalette.swift`:
- Line 50: Update the switchOff color in the LanternColor palette to a color
with at least 3:1 contrast against the card background, while preserving the
existing custom switch behavior and palette structure.
In `@ios/LanternWidget/WidgetTunnelController.swift`:
- Around line 104-105: Update the static pick method to return only the
NETunnelProviderManager whose localizedDescription matches
FilePath.vpnProfileName; remove the fallback to managers.first so no stale
profile is selected when the expected profile is absent.
In `@ios/Runner.xcodeproj/project.pbxproj`:
- Line 106: Update the Foundation.framework PBXFileReference to use the
SDK-relative path System/Library/Frameworks/Foundation.framework with sourceTree
set to SDKROOT, removing the hardcoded iPhoneOS18.0 DEVELOPER_DIR path so device
and simulator builds resolve the active SDK correctly.
In `@ios/Runner.xcodeproj/xcshareddata/xcschemes/LanternWidget.xcscheme`:
- Line 17: Update every BuildableReference in the LanternWidget scheme to use
the PBXNativeTarget IDs from project.pbxproj, replacing the group identifiers
for the LanternWidget and Runner references while preserving the existing scheme
structure.
In `@ios/Runner/AppDelegate.swift`:
- Around line 86-87: Remove the initial VPNWidgetStore.setStatus call from
setupWidgetBridge so the default disconnected state is not published before
restoreVPNStatus completes. Keep the connectionStatus setter responsible for
publishing the restored status.
In `@ios/Runner/VPN/VPNManager.swift`:
- Around line 184-190: Update the widget toggle and disconnect handling around
connectionStatus to treat .connected, .connecting, and .reasserting as active
sessions: route toggle requests in those states through stopTunnel(), and allow
the disconnect path to do the same. Keep .disconnected and .invalid mapped to
startFromWidget(), and preserve the ignored-status logging for other states.
In `@ios/Shared/VPNWidgetIntents.swift`:
- Around line 26-29: Update the handler-unavailable guard in the VPN intent
bridge to throw an error after logging instead of returning, so Runner intents
do not report success without performing the VPN action. Preserve the existing
appLogger.error call and apply the failure behavior to both intents using the
shared guard.
In `@ios/Shared/VPNWidgetState.swift`:
- Around line 125-131: Update the snapshot update flow around update so
concurrent widget-state writers cannot lose each other’s changes: coordinate the
complete load-modify-write operation across processes, or store independently
updated domains under separate keys. Preserve the existing no-op detection,
timestamp update, encoding, and persistence behavior after coordination.
In `@ios/Tunnel/PacketTunnelProvider.swift`:
- Around line 59-60: Replace the separate status check and set in the connecting
callback with a conditional atomic VPNWidgetStore operation that transitions
from .connecting to .connected under one cross-process synchronization boundary,
preventing teardown writes from being overwritten by a stale callback.
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ℹ️ Review info
⚙️ Run configuration
Configuration used: defaults
Review profile: CHILL
Plan: Advanced
Run ID: 4699d6db-c009-4053-aefb-8652cc696539
⛔ Files ignored due to path filters (4)
ios/LanternWidget/Assets.xcassets/LanternLogo.imageset/logo@1x.pngis excluded by!**/*.pngios/LanternWidget/Assets.xcassets/LanternLogo.imageset/logo@2x.pngis excluded by!**/*.pngios/LanternWidget/Assets.xcassets/LanternLogo.imageset/logo@3x.pngis excluded by!**/*.pngios/Podfile.lockis excluded by!**/*.lock
📒 Files selected for processing (34)
ios/LanternWidget/Assets.xcassets/Contents.jsonios/LanternWidget/Assets.xcassets/LanternLogo.imageset/Contents.jsonios/LanternWidget/Assets.xcassets/StatusConnected.colorset/Contents.jsonios/LanternWidget/Assets.xcassets/StatusDisconnected.colorset/Contents.jsonios/LanternWidget/Assets.xcassets/StatusPending.colorset/Contents.jsonios/LanternWidget/Assets.xcassets/WidgetAccent.colorset/Contents.jsonios/LanternWidget/Assets.xcassets/WidgetBackground.colorset/Contents.jsonios/LanternWidget/Assets.xcassets/WidgetTextPrimary.colorset/Contents.jsonios/LanternWidget/Assets.xcassets/WidgetTextSecondary.colorset/Contents.jsonios/LanternWidget/Info.plistios/LanternWidget/LanternVPNControlWidget.swiftios/LanternWidget/LanternVPNWidget.swiftios/LanternWidget/LanternWidget.entitlementsios/LanternWidget/LanternWidgetBundle.swiftios/LanternWidget/Views/LanternWidgetEntryView.swiftios/LanternWidget/Views/VPNWidgetPresentation.swiftios/LanternWidget/Views/WidgetBackgroundView.swiftios/LanternWidget/Views/WidgetPalette.swiftios/LanternWidget/WidgetTunnelController.swiftios/Podfileios/Runner.xcodeproj/project.pbxprojios/Runner.xcodeproj/xcshareddata/xcschemes/LanternWidget.xcschemeios/Runner/AppDelegate.swiftios/Runner/Handlers/MethodHandler.swiftios/Runner/VPN/Profile.swiftios/Runner/VPN/VPNManager.swiftios/Shared/VPNWidgetIntents.swiftios/Shared/VPNWidgetState.swiftios/Tunnel/PacketTunnelProvider.swiftlib/features/vpn/provider/server_location_notifier.dartlib/lantern/lantern_core_service.dartlib/lantern/lantern_ffi_service.dartlib/lantern/lantern_platform_service.dartlib/lantern/lantern_service.dart
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@atavism Can you take a look at this? |
atavism
approved these changes
Sep 24, 2026
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This pull request introduces the initial implementation of the new
LanternWidgetfor iOS, including both the home/lock screen VPN status widget and the iOS 18 Control Center toggle. The changes add all required widget source files, asset catalogs, color definitions, and configuration files to support a fully functional and visually adaptive widget experience.The most important changes are:
Widget Feature Implementation:
LanternVPNWidget, a WidgetKit-based home and lock screen widget that displays VPN status and allows connect/disconnect actions, with adaptive layouts for different widget families. (LanternVPNWidget.swift,Views/LanternWidgetEntryView.swift) [1] [2]LanternVPNControlWidget, an iOS 18 Control Center/Lock Screen/Action button toggle for VPN control. (LanternVPNControlWidget.swift)LanternWidgetBundleas the widget bundle entry point, registering both the main widget and the control widget. (LanternWidgetBundle.swift)Assets and Appearance:
Assets.xcassetsand subfolders) [1] [2] [3] [4] [5] [6] [7] [8]Configuration and Entitlements:
Info.plistand entitlements (LanternWidget.entitlements) required for WidgetKit operation and network extension access. [1] [2]Summary by CodeRabbit