Add native sharing handler

android/app/src/main/AndroidManifest.xml

@@ -27,6 +27,17 @@
                 <category android:name="android.intent.category.BROWSABLE" />
                 <data android:scheme="https" android:host="app.flotilla.social" />
             </intent-filter>
+
+            <!-- Puts Flotilla in the system share sheet. These intents carry their payload in
+                 extras rather than a data uri, so Capacitor never emits appUrlOpen for them;
+                 ShareIntentPlugin picks them up instead. -->
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="text/plain" />
+                <data android:mimeType="image/*" />
+                <data android:mimeType="video/*" />
+            </intent-filter>
         </activity>
 
         <provider

android/app/src/main/java/social/flotilla/MainActivity.java

@@ -8,11 +8,13 @@ import android.os.Bundle;
 import com.getcapacitor.BridgeActivity;
 
 import social.flotilla.notifications.AndroidPushFallbackPlugin;
+import social.flotilla.share.ShareIntentPlugin;
 
 public class MainActivity extends BridgeActivity {
   @Override
   public void onCreate(Bundle savedInstanceState) {
     registerPlugin(AndroidPushFallbackPlugin.class);
+    registerPlugin(ShareIntentPlugin.class);
     createPushNotificationChannel();
     super.onCreate(savedInstanceState);
   }

android/app/src/main/java/social/flotilla/share/ShareIntentPlugin.kt

@@ -0,0 +1,53 @@
+package social.flotilla.share
+
+import android.content.Intent
+import android.net.Uri
+import android.webkit.MimeTypeMap
+import androidx.core.content.IntentCompat
+import com.getcapacitor.JSObject
+import com.getcapacitor.Plugin
+import com.getcapacitor.annotation.CapacitorPlugin
+import java.io.File
+
+@CapacitorPlugin(name = "ShareIntent")
+class ShareIntentPlugin : Plugin() {
+  // Capacitor runs the launch intent through here as well as intents delivered while the app is
+  // already running, so this is the only hook we need. Retaining the event covers a cold start,
+  // where the web view isn't listening yet.
+  override fun handleOnNewIntent(intent: Intent) {
+    if (intent.action == Intent.ACTION_SEND) {
+      val uri = IntentCompat.getParcelableExtra(intent, Intent.EXTRA_STREAM, Uri::class.java)
+      val text = intent.getStringExtra(Intent.EXTRA_TEXT)
+
+      // Android hands the same intent back when the activity is recreated, so drop the payload
+      // once we've taken it to avoid re-opening the share dialog.
+      if (uri != null) {
+        intent.removeExtra(Intent.EXTRA_STREAM)
+
+        // Copying a shared video can take a while, and this runs on the main thread
+        bridge.execute { notifyListeners("shareReceived", copyToCache(uri), true) }
+      } else if (text != null) {
+        intent.removeExtra(Intent.EXTRA_TEXT)
+        notifyListeners("shareReceived", JSObject().put("text", text), true)
+      }
+    }
+  }
+
+  // A content uri is readable by us but meaningless to the web view, so hand over a copy that
+  // capacitor's file server can serve.
+  private fun copyToCache(uri: Uri): JSObject {
+    val resolver = context.contentResolver
+    val type = resolver.getType(uri)
+    val extension = MimeTypeMap.getSingleton().getExtensionFromMimeType(type)
+    val file = File.createTempFile("shared", extension?.let { ".$it" }, context.cacheDir)
+
+    resolver.openInputStream(uri)?.use { input ->
+      file.outputStream().use { output -> input.copyTo(output) }
+    }
+
+    return JSObject()
+      .put("path", file.absolutePath)
+      .put("name", file.name)
+      .put("type", type)
+  }
+}

ios/App/App.xcodeproj/project.pbxproj

@@ -7,6 +7,8 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		052C05E5302BD03100DD0620 /* ShareViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 052C05E2302BD03100DD0620 /* ShareViewController.swift */; };
+		052C05D0302BD03100DD0620 /* ShareExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 052C05C6302BD03100DD0620 /* ShareExtension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		2FAD9763203C412B000D30F8 /* config.xml in Resources */ = {isa = PBXBuildFile; fileRef = 2FAD9762203C412B000D30F8 /* config.xml */; };
 		3478F0332E846FEB002431E0 /* PrivacyInfo.xcprivacy in Resources */ = {isa = PBXBuildFile; fileRef = 3478F0322E846FEB002431E0 /* PrivacyInfo.xcprivacy */; };
 		50379B232058CBB4000EE86E /* capacitor.config.json in Resources */ = {isa = PBXBuildFile; fileRef = 50379B222058CBB4000EE86E /* capacitor.config.json */; };
@@ -18,8 +20,36 @@
 		AC8D5382B9575A9124613C5D /* Pods_Flotilla_Chat.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = DA42C7E3CF3FFF7A17A3A729 /* Pods_Flotilla_Chat.framework */; };
 /* End PBXBuildFile section */
 
+/* Begin PBXContainerItemProxy section */
+		052C05CE302BD03100DD0620 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 504EC2FC1FED79650016851F /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 052C05C5302BD03100DD0620;
+			remoteInfo = ShareExtension;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		052C05D1302BD03100DD0620 /* Embed Foundation Extensions */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 13;
+			files = (
+				052C05D0302BD03100DD0620 /* ShareExtension.appex in Embed Foundation Extensions */,
+			);
+			name = "Embed Foundation Extensions";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
 /* Begin PBXFileReference section */
+		052C05E2302BD03100DD0620 /* ShareViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ShareViewController.swift; sourceTree = "<group>"; };
+		052C05E3302BD03100DD0620 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		052C05E4302BD03100DD0620 /* ShareExtension.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = ShareExtension.entitlements; sourceTree = "<group>"; };
 		051414282E0CC28400BE0BC8 /* Flotilla Chat.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = "Flotilla Chat.entitlements"; sourceTree = "<group>"; };
+		052C05C6302BD03100DD0620 /* ShareExtension.appex */ = {isa = PBXFileReference; explicitFileType = "wrapper.app-extension"; includeInIndex = 0; path = ShareExtension.appex; sourceTree = BUILT_PRODUCTS_DIR; };
 		1F53EE54954731A2328CBC4B /* Pods-Flotilla Chat.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Flotilla Chat.release.xcconfig"; path = "Pods/Target Support Files/Pods-Flotilla Chat/Pods-Flotilla Chat.release.xcconfig"; sourceTree = "<group>"; };
 		2FAD9762203C412B000D30F8 /* config.xml */ = {isa = PBXFileReference; lastKnownFileType = text.xml; path = config.xml; sourceTree = "<group>"; };
 		3478F0322E846FEB002431E0 /* PrivacyInfo.xcprivacy */ = {isa = PBXFileReference; lastKnownFileType = text.xml; path = PrivacyInfo.xcprivacy; sourceTree = "<group>"; };
@@ -38,6 +68,13 @@
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
+		052C05C3302BD03100DD0620 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		504EC3011FED79650016851F /* Frameworks */ = {
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
@@ -49,6 +86,16 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		052C05E1302BD03100DD0620 /* ShareExtension */ = {
+			isa = PBXGroup;
+			children = (
+				052C05E2302BD03100DD0620 /* ShareViewController.swift */,
+				052C05E3302BD03100DD0620 /* Info.plist */,
+				052C05E4302BD03100DD0620 /* ShareExtension.entitlements */,
+			);
+			path = ShareExtension;
+			sourceTree = "<group>";
+		};
 		27E2DDA53C4D2A4D1A88CE4A /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
@@ -63,6 +110,7 @@
 				3478F0322E846FEB002431E0 /* PrivacyInfo.xcprivacy */,
 				051414282E0CC28400BE0BC8 /* Flotilla Chat.entitlements */,
 				504EC3061FED79650016851F /* App */,
+				052C05E1302BD03100DD0620 /* ShareExtension */,
 				504EC3051FED79650016851F /* Products */,
 				7F8756D8B27F46E3366F6CEA /* Pods */,
 				27E2DDA53C4D2A4D1A88CE4A /* Frameworks */,
@@ -73,6 +121,7 @@
 			isa = PBXGroup;
 			children = (
 				504EC3041FED79650016851F /* Flotilla Chat.app */,
+				052C05C6302BD03100DD0620 /* ShareExtension.appex */,
 			);
 			name = Products;
 			sourceTree = "<group>";
@@ -106,6 +155,25 @@
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
+		052C05C5302BD03100DD0620 /* ShareExtension */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 052C05D5302BD03100DD0620 /* Build configuration list for PBXNativeTarget "ShareExtension" */;
+			buildPhases = (
+				052C05C2302BD03100DD0620 /* Sources */,
+				052C05C3302BD03100DD0620 /* Frameworks */,
+				052C05C4302BD03100DD0620 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = ShareExtension;
+			packageProductDependencies = (
+			);
+			productName = ShareExtension;
+			productReference = 052C05C6302BD03100DD0620 /* ShareExtension.appex */;
+			productType = "com.apple.product-type.app-extension";
+		};
 		504EC3031FED79650016851F /* Flotilla Chat */ = {
 			isa = PBXNativeTarget;
 			buildConfigurationList = 504EC3161FED79650016851F /* Build configuration list for PBXNativeTarget "Flotilla Chat" */;
@@ -115,10 +183,12 @@
 				504EC3011FED79650016851F /* Frameworks */,
 				504EC3021FED79650016851F /* Resources */,
 				9592DBEFFC6D2A0C8D5DEB22 /* [CP] Embed Pods Frameworks */,
+				052C05D1302BD03100DD0620 /* Embed Foundation Extensions */,
 			);
 			buildRules = (
 			);
 			dependencies = (
+				052C05CF302BD03100DD0620 /* PBXTargetDependency */,
 			);
 			name = "Flotilla Chat";
 			productName = App;
@@ -132,9 +202,12 @@
 			isa = PBXProject;
 			attributes = {
 				BuildIndependentTargetsInParallel = YES;
-				LastSwiftUpdateCheck = 920;
+				LastSwiftUpdateCheck = 2630;
 				LastUpgradeCheck = 2630;
 				TargetAttributes = {
+					052C05C5302BD03100DD0620 = {
+						CreatedOnToolsVersion = 26.3;
+					};
 					504EC3031FED79650016851F = {
 						CreatedOnToolsVersion = 9.2;
 						LastSwiftMigration = 1100;
@@ -156,11 +229,19 @@
 			projectRoot = "";
 			targets = (
 				504EC3031FED79650016851F /* Flotilla Chat */,
+				052C05C5302BD03100DD0620 /* ShareExtension */,
 			);
 		};
 /* End PBXProject section */
 
 /* Begin PBXResourcesBuildPhase section */
+		052C05C4302BD03100DD0620 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		504EC3021FED79650016851F /* Resources */ = {
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
@@ -214,6 +295,14 @@
 /* End PBXShellScriptBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */
+		052C05C2302BD03100DD0620 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				052C05E5302BD03100DD0620 /* ShareViewController.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		504EC3001FED79650016851F /* Sources */ = {
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
@@ -224,6 +313,14 @@
 		};
 /* End PBXSourcesBuildPhase section */
 
+/* Begin PBXTargetDependency section */
+		052C05CF302BD03100DD0620 /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 052C05C5302BD03100DD0620 /* ShareExtension */;
+			targetProxy = 052C05CE302BD03100DD0620 /* PBXContainerItemProxy */;
+		};
+/* End PBXTargetDependency section */
+
 /* Begin PBXVariantGroup section */
 		504EC30B1FED79650016851F /* Main.storyboard */ = {
 			isa = PBXVariantGroup;
@@ -244,6 +341,78 @@
 /* End PBXVariantGroup section */
 
 /* Begin XCBuildConfiguration section */
+		052C05D2302BD03100DD0620 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CODE_SIGN_ENTITLEMENTS = ShareExtension/ShareExtension.entitlements;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 41;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu17;
+				GENERATE_INFOPLIST_FILE = NO;
+				INFOPLIST_FILE = ShareExtension/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@executable_path/../../Frameworks",
+				);
+				LOCALIZATION_PREFERS_STRING_CATALOGS = YES;
+				MARKETING_VERSION = 1.9.0;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				PRODUCT_BUNDLE_IDENTIFIER = social.flotilla.ShareExtension;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SKIP_INSTALL = YES;
+				STRING_CATALOG_GENERATE_SYMBOLS = YES;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = "DEBUG $(inherited)";
+				SWIFT_APPROACHABLE_CONCURRENCY = YES;
+				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		052C05D3302BD03100DD0620 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CODE_SIGN_ENTITLEMENTS = ShareExtension/ShareExtension.entitlements;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 41;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu17;
+				GENERATE_INFOPLIST_FILE = NO;
+				INFOPLIST_FILE = ShareExtension/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@executable_path/../../Frameworks",
+				);
+				LOCALIZATION_PREFERS_STRING_CATALOGS = YES;
+				MARKETING_VERSION = 1.9.0;
+				MTL_FAST_MATH = YES;
+				PRODUCT_BUNDLE_IDENTIFIER = social.flotilla.ShareExtension;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SKIP_INSTALL = YES;
+				STRING_CATALOG_GENERATE_SYMBOLS = YES;
+				SWIFT_APPROACHABLE_CONCURRENCY = YES;
+				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_UPCOMING_FEATURE_MEMBER_IMPORT_VISIBILITY = YES;
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
 		504EC3141FED79650016851F /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
@@ -424,6 +593,15 @@
 /* End XCBuildConfiguration section */
 
 /* Begin XCConfigurationList section */
+		052C05D5302BD03100DD0620 /* Build configuration list for PBXNativeTarget "ShareExtension" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				052C05D2302BD03100DD0620 /* Debug */,
+				052C05D3302BD03100DD0620 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
 		504EC2FF1FED79650016851F /* Build configuration list for PBXProject "App" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (

ios/App/App.xcodeproj/xcshareddata/xcschemes/Flotilla Chat.xcscheme

@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "2630"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "504EC3031FED79650016851F"
+               BuildableName = "Flotilla Chat.app"
+               BlueprintName = "Flotilla Chat"
+               ReferencedContainer = "container:App.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "504EC3031FED79650016851F"
+            BuildableName = "Flotilla Chat.app"
+            BlueprintName = "Flotilla Chat"
+            ReferencedContainer = "container:App.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "504EC3031FED79650016851F"
+            BuildableName = "Flotilla Chat.app"
+            BlueprintName = "Flotilla Chat"
+            ReferencedContainer = "container:App.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

ios/App/App/Info.plist

@@ -16,6 +16,17 @@
 	<string>$(PRODUCT_NAME)</string>
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleURLName</key>
+			<string>social.flotilla</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>flotilla</string>
+			</array>
+		</dict>
+	</array>
 	<key>CFBundleShortVersionString</key>
 	<string>$(MARKETING_VERSION)</string>
 	<key>CFBundleVersion</key>

ios/App/Flotilla Chat.entitlements

@@ -8,5 +8,9 @@
 	<array>
 		<string>applinks:app.flotilla.social</string>
 	</array>
+	<key>com.apple.security.application-groups</key>
+	<array>
+		<string>group.social.flotilla</string>
+	</array>
 </dict>
 </plist>

ios/App/ShareExtension/Info.plist

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleDisplayName</key>
+	<string>Flotilla</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>XPC!</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(MARKETING_VERSION)</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>NSExtension</key>
+	<dict>
+		<key>NSExtensionAttributes</key>
+		<dict>
+			<key>NSExtensionActivationRule</key>
+			<dict>
+				<key>NSExtensionActivationSupportsWebURLWithMaxCount</key>
+				<integer>1</integer>
+				<key>NSExtensionActivationSupportsImageWithMaxCount</key>
+				<integer>1</integer>
+				<key>NSExtensionActivationSupportsMovieWithMaxCount</key>
+				<integer>1</integer>
+				<key>NSExtensionActivationSupportsText</key>
+				<true/>
+			</dict>
+		</dict>
+		<key>NSExtensionPointIdentifier</key>
+		<string>com.apple.share-services</string>
+		<key>NSExtensionPrincipalClass</key>
+		<string>$(PRODUCT_MODULE_NAME).ShareViewController</string>
+	</dict>
+</dict>
+</plist>

ios/App/ShareExtension/ShareExtension.entitlements

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.application-groups</key>
+	<array>
+		<string>group.social.flotilla</string>
+	</array>
+</dict>
+</plist>

ios/App/ShareExtension/ShareViewController.swift

@@ -0,0 +1,159 @@
+import ObjectiveC
+import UIKit
+import UniformTypeIdentifiers
+
+// A share extension runs in its own process and can't reach the app or its web view, so the
+// payload is handed over as a flotilla://share url, which the root layout picks up via
+// appUrlOpen. Media is far too big for a url, so it gets copied into the shared app group
+// container — the one directory both processes can read — and passed along by path.
+class ShareViewController: UIViewController {
+  private let appGroup = "group.social.flotilla"
+
+  override func viewDidAppear(_ animated: Bool) {
+    super.viewDidAppear(animated)
+
+    let attachments = (extensionContext?.inputItems.first as? NSExtensionItem)?.attachments ?? []
+
+    // Browsers attach a page's title alongside its url, so take these in order of specificity.
+    // Photos offers a jpeg representation of a heic asset, which saves us re-encoding it later.
+    for type in [UTType.movie, UTType.jpeg, UTType.image, UTType.url, UTType.plainText] {
+      for provider in attachments where provider.hasItemConformingToTypeIdentifier(type.identifier) {
+        provider.loadItem(forTypeIdentifier: type.identifier) { value, _ in
+          if type == .url {
+            self.shareText((value as? URL)?.absoluteString)
+          } else if type == .plainText {
+            self.shareText(value as? String)
+          } else {
+            self.shareFile(value)
+          }
+        }
+
+        return
+      }
+    }
+
+    finish()
+  }
+
+  private func shareText(_ text: String?) {
+    guard let text = text else {
+      return finish()
+    }
+
+    open([URLQueryItem(name: "text", value: text)])
+  }
+
+  private func shareFile(_ value: NSSecureCoding?) {
+    let manager = FileManager.default
+
+    guard let container = manager.containerURL(forSecurityApplicationGroupIdentifier: appGroup) else {
+      return finish()
+    }
+
+    // Nothing prunes the group container for us, and the app is done with the last share by the
+    // time a new one arrives. Emptying a directory of our own leaves the rest of the container,
+    // Library/ included, alone.
+    let directory = container.appendingPathComponent("shares")
+
+    try? manager.removeItem(at: directory)
+
+    do {
+      try manager.createDirectory(at: directory, withIntermediateDirectories: true)
+
+      if let source = value as? URL {
+        let destination = directory.appendingPathComponent(source.lastPathComponent)
+
+        try manager.copyItem(at: source, to: destination)
+        open(file: destination)
+      } else if let image = value as? UIImage, let data = image.jpegData(compressionQuality: 0.9) {
+        let destination = directory.appendingPathComponent("shared.jpg")
+
+        try data.write(to: destination)
+        open(file: destination)
+      } else {
+        finish()
+      }
+    } catch {
+      finish()
+    }
+  }
+
+  private func open(file: URL) {
+    open([
+      URLQueryItem(name: "path", value: file.path),
+      URLQueryItem(name: "name", value: file.lastPathComponent),
+      URLQueryItem(
+        name: "type",
+        value: UTType(filenameExtension: file.pathExtension)?.preferredMIMEType
+      ),
+    ])
+  }
+
+  private func open(_ queryItems: [URLQueryItem]) {
+    guard var components = URLComponents(string: "flotilla://share") else {
+      return finish()
+    }
+
+    components.queryItems = queryItems
+
+    guard let url = components.url else {
+      return finish()
+    }
+
+    DispatchQueue.main.async {
+      NSLog("Flotilla: opening %@", url.absoluteString)
+
+      // Which of these works varies by ios version and neither reports whether the app actually
+      // came forward, so try both. Opening the same url twice is harmless.
+      let foundApplication = self.openViaResponderChain(url)
+
+      self.extensionContext?.open(url) { opened in
+        NSLog(
+          "Flotilla: responder chain %@, extensionContext.open %@",
+          foundApplication ? "found UIApplication" : "found nothing",
+          opened ? "succeeded" : "failed"
+        )
+
+        // Completing the request tears down the extension, which can cancel an open springboard
+        // hasn't picked up yet
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
+          self.finish()
+        }
+      }
+    }
+  }
+
+  // UIApplication isn't reachable from an extension, so walk the responder chain to find it. Its
+  // open(_:options:completionHandler:) isn't visible to us at compile time either, and the
+  // openURL: that extensions used for years now force-returns false, so call it via the runtime.
+  private func openViaResponderChain(_ url: URL) -> Bool {
+    let selector = NSSelectorFromString("openURL:options:completionHandler:")
+    var responder: UIResponder? = self
+
+    while let current = responder {
+      if let application = current as? UIApplication,
+        let method = class_getInstanceMethod(type(of: application), selector)
+      {
+        typealias OpenURL = @convention(c) (UIApplication, Selector, NSURL, NSDictionary, AnyObject?)
+          -> Void
+
+        let open = unsafeBitCast(method_getImplementation(method), to: OpenURL.self)
+        let completion: @convention(block) (Bool) -> Void = { opened in
+          NSLog("Flotilla: UIApplication.open %@", opened ? "succeeded" : "failed")
+        }
+
+        open(application, selector, url as NSURL, NSDictionary(), completion as AnyObject)
+
+        return true
+      }
+
+      responder = current.next
+    }
+
+    return false
+  }
+
+  private func finish() {
+    extensionContext?.completeRequest(returningItems: nil)
+  }
+}

package.json

@@ -71,6 +71,7 @@
     "@sveltejs/adapter-static": "^3.0.10",
     "@tiptap/core": "^2.27.2",
     "@tiptap/pm": "^2.27.2",
+    "@tiptap/suggestion": "^2.27.2",
     "@types/qrcode": "^1.5.6",
     "@types/throttle-debounce": "^5.0.2",
     "@vite-pwa/assets-generator": "^1.0.2",
@@ -98,6 +99,10 @@
     "nostr-signer-capacitor-plugin": "github:coracle-social/nostr-signer-capacitor-plugin#main",
     "nostr-tools": "^2.19.4",
     "prettier-plugin-tailwindcss": "^0.7.2",
+    "prosemirror-model": "^1.25.7",
+    "prosemirror-state": "^1.4.4",
+    "prosemirror-transform": "^1.12.0",
+    "prosemirror-view": "^1.41.8",
     "qr-scanner": "^1.4.2",
     "qrcode": "^1.5.4",
     "throttle-debounce": "^5.0.2",

src/app/components/BoardMenu.svelte

@@ -6,7 +6,7 @@
   import Icon from "@lib/components/Icon.svelte"
   import Button from "@lib/components/Button.svelte"
   import EventInfo from "@app/components/EventInfo.svelte"
-  import {shareEventToChat} from "@app/share"
+  import {shareEvent} from "@app/share"
   import {pushModal} from "@app/modal"
 
   type Props = {
@@ -19,7 +19,7 @@
 
   const showInfo = () => pushModal(EventInfo, {url, event: board.event})
 
-  const share = () => shareEventToChat(url, "Shelf", board.event)
+  const share = () => shareEvent(url, "Shelf", board.event)
 
   let ul: Element
 

src/app/components/Chat.svelte

@@ -17,6 +17,7 @@
     enumerate,
     formatTimestampAsDate,
   } from "@welshman/lib"
+  import type {Maybe} from "@welshman/lib"
   import type {TrustedEvent, EventTemplate, EventContent} from "@welshman/util"
   import {makeEvent, DIRECT_MESSAGE, DIRECT_MESSAGE_FILE} from "@welshman/util"
   import {parse, isLink} from "@welshman/content"
@@ -44,8 +45,9 @@
   import {userSettingsValues} from "@app/settings"
   import {deriveChat, makeChatId} from "@app/chats"
   import {pushModal} from "@app/modal"
-  import {DraftKey} from "@app/drafts"
+  import {DraftKey, type Draft} from "@app/drafts"
   import {prependParent} from "@app/rooms"
+  import {pendingShare, type Share} from "@app/share"
   import {pushToast} from "@app/toast"
 
   type Props = {
@@ -57,7 +59,7 @@
 
   const chatId = makeChatId(pubkeys)
   const chat = deriveChat(chatId)
-  const draftKey = new DraftKey<{content?: string | object}>(`dm:${chatId}`)
+  const draftKey = new DraftKey<Draft>(`dm:${chatId}`)
   const others = remove($user.pubkey, pubkeys)
   const messagingRelayLists = $app.use(MessagingRelayLists).index.$
   const missingRelayLists = $derived(others.filter(pk => !$messagingRelayLists.has(pk)))
@@ -183,6 +185,26 @@
   let compose: ChatCompose | undefined = $state()
   let parent: TrustedEvent | undefined = $state()
   let eventToEdit: TrustedEvent | undefined = $state()
+  let share: Maybe<Share> = $state()
+
+  // Claim the share once we're on screen. Sharing into the conversation you're already looking at
+  // doesn't re-create this component, so this can't be read once on mount.
+  $effect(() => {
+    if ($pendingShare) {
+      share = $pendingShare
+      pendingShare.set(undefined)
+    }
+  })
+
+  const initialValues = $derived.by((): Share | undefined => {
+    if (eventToEdit) {
+      return {type: "text", value: eventToEdit.content}
+    }
+
+    if (share) {
+      return share
+    }
+  })
 
   const elements = $derived.by(() => {
     const elements = []
@@ -318,13 +340,13 @@
         <ChatComposeEdit clear={clearEventToEdit} />
       {/if}
     </div>
-    {#key eventToEdit}
+    {#key initialValues}
       <ChatCompose
         bind:this={compose}
         {onSubmit}
         {onEscape}
         {onEditPrevious}
-        initialValues={eventToEdit}
+        {initialValues}
         draftKey={eventToEdit ? undefined : draftKey}
         disabled={Boolean(missingRelayLists.length)} />
     {/key}

src/app/components/ChatCompose.svelte

@@ -11,22 +11,19 @@
   import Spinner from "@lib/components/Spinner.svelte"
   import EditorContent from "@app/editor/EditorContent.svelte"
   import {makeEditor} from "@app/editor"
-  import {type DraftKey} from "@app/drafts"
+  import {type DraftKey, type Draft} from "@app/drafts"
-
+  import type {Share} from "@app/share"
-  type Values = {
-    content?: string | object
-  }
 
   type Props = {
     disabled?: boolean
-    draftKey?: DraftKey<Values>
+    draftKey?: DraftKey<Draft>
     onEscape?: () => void
     onEditPrevious?: () => void
     onSubmit: (event: EventContent) => void
-    initialValues?: Values
+    initialValues?: Share
   }
 
-  let {
+  const {
     initialValues,
     disabled = false,
     draftKey,
@@ -35,10 +32,6 @@
     onSubmit,
   }: Props = $props()
 
-  if (!initialValues) {
-    initialValues = draftKey?.get()
-  }
-
   const autofocus = !isMobile && !disabled
 
   const uploading = writable(false)
@@ -81,7 +74,9 @@
     ed.chain().clearContent().run()
   }
 
-  let content = $state(initialValues?.content ?? "")
+  let content = $state(
+    initialValues?.type === "text" ? initialValues.value : (draftKey?.get()?.content ?? ""),
+  )
 
   const onChange = (json: object) => {
     content = json
@@ -103,6 +98,12 @@
   onMount(async () => {
     const ed = await editor
     ed.view.dom.addEventListener("keydown", handleKeyDown)
+
+    if (initialValues?.type === "file") {
+      ed.chain()
+        .addFile(initialValues.value, ed.state.selection.from + 1)
+        .run()
+    }
   })
 
   onDestroy(async () => {

src/app/components/EventMenu.svelte

@@ -15,7 +15,7 @@
   import Report from "@app/components/Report.svelte"
   import EventDeleteConfirm from "@app/components/EventDeleteConfirm.svelte"
   import PinboardSelect from "@app/components/PinboardSelect.svelte"
-  import {shareEventToChat} from "@app/share"
+  import {shareEvent} from "@app/share"
   import {deriveUserIsSpaceAdmin} from "@app/management"
   import {pushModal} from "@app/modal"
   import {pushToast} from "@app/toast"
@@ -40,7 +40,7 @@
 
   const addToLibrary = () => pushModal(PinboardSelect, {url, event})
 
-  const share = () => shareEventToChat(url, noun, event)
+  const share = () => shareEvent(url, noun, event)
 
   const showDelete = () => pushModal(EventDeleteConfirm, {url, event})
 

src/app/components/PinMenu.svelte

@@ -13,7 +13,7 @@
   import PinEdit from "@app/components/PinEdit.svelte"
   import {deletes} from "@app/core"
   import {deriveUserIsSpaceAdmin} from "@app/management"
-  import {shareEventToChat} from "@app/share"
+  import {shareEvent} from "@app/share"
   import {pushModal} from "@app/modal"
   import {pushToast} from "@app/toast"
 
@@ -29,7 +29,7 @@
 
   const showInfo = () => pushModal(EventInfo, {url, event: pin.event})
 
-  const share = () => shareEventToChat(url, "Link", pin.event)
+  const share = () => shareEvent(url, "Link", pin.event)
 
   const edit = () => pushModal(PinEdit, {url, pin})
 

src/app/components/RelaySummary.svelte

@@ -30,10 +30,8 @@
           </div>
         </div>
         {#if $userSpaceUrls.includes(url)}
-          <div
+          <div class="absolute -right-1 -top-1 h-5 w-5 rounded-full bg-primary text-primary-content flex justify-center items-center">
-            class="tip absolute -right-1 -top-1 h-5 w-5 rounded-full bg-primary text-primary-content"
+            <Icon icon={CheckCircle} class="scale-120" />
-            data-tip="You are already a member of this space.">
-            <Icon icon={CheckCircle} class="scale-110" />
           </div>
         {/if}
       </div>

src/app/components/RoomChat.svelte

@@ -7,6 +7,7 @@
   import {debounce} from "throttle-debounce"
   import cx from "classnames"
   import {now, ifLet, int, formatTimestampAsDate, ago, MINUTE} from "@welshman/lib"
+  import type {Maybe} from "@welshman/lib"
   import type {TrustedEvent, EventContent} from "@welshman/util"
   import {makeEvent, MESSAGE, RELAY_ADD_MEMBER, ROOM_ADD_MEMBER} from "@welshman/util"
   import {publish} from "@welshman/app"
@@ -16,7 +17,6 @@
   import ChatRound from "@assets/icons/chat-round.svg?dataurl"
   import Close from "@assets/icons/close.svg?dataurl"
   import {fade, fly} from "@lib/transition"
-  import {popKey} from "@lib/implicit"
   import {documentActive} from "@lib/html"
   import Button from "@lib/components/Button.svelte"
   import Divider from "@lib/components/Divider.svelte"
@@ -46,6 +46,7 @@
   import {makeFeed} from "@app/feeds"
   import {checked, deferredRoomPath, notifications, setChecked} from "@app/notifications"
   import {makeRoomPath} from "@app/routes"
+  import {pendingShare, type Share} from "@app/share"
   import {pushToast} from "@app/toast"
 
   type Props = {
@@ -183,7 +184,7 @@
   }
 
   const onSubmit = async ({content, tags}: EventContent) => {
-    if (!content && !share) {
+    if (!content && !sharedEvent) {
       return
     }
 
@@ -216,8 +217,8 @@
         command.publishToRelays([url])
       }
 
-      if (share) {
+      if (sharedEvent) {
-        template = await prependParent(share, template, url)
+        template = await prependParent(sharedEvent, template, url)
       }
 
       if (parent) {
@@ -324,7 +325,7 @@
   let isUserScrolling = $state(false)
   let loadingBackward = $state(true)
   let loadingForward = $state(true)
-  let share = $state(popKey<TrustedEvent | undefined>("share"))
+  let share: Maybe<Share> = $state()
   let parent: TrustedEvent | undefined = $state()
   let element: HTMLElement | undefined = $state()
   let lastVisibleAt = now()
@@ -338,6 +339,27 @@
   let compose: RoomCompose | undefined = $state()
   let eventToEdit: TrustedEvent | undefined = $state()
 
+  // Claim the share once we're on screen. Sharing into the room you're already looking at
+  // doesn't re-create this component, so this can't be read once on mount.
+  $effect(() => {
+    if ($pendingShare) {
+      share = $pendingShare
+      pendingShare.set(undefined)
+    }
+  })
+
+  const sharedEvent = $derived(share?.type === "event" ? share.value : undefined)
+
+  const initialValues = $derived.by((): Share | undefined => {
+    if (eventToEdit) {
+      return {type: "text", value: eventToEdit.content}
+    }
+
+    if (share) {
+      return share
+    }
+  })
+
   const clearIsUserScrolling = debounce(150, () => {
     isUserScrolling = false
   })
@@ -619,21 +641,21 @@
             {#if parent}
               <RoomComposeParent event={parent} clear={clearParent} verb="Replying to" />
             {/if}
-            {#if share}
+            {#if sharedEvent}
-              <RoomComposeParent event={share} clear={clearShare} verb="Sharing" />
+              <RoomComposeParent event={sharedEvent} clear={clearShare} verb="Sharing" />
             {/if}
             {#if eventToEdit}
               <RoomComposeEdit clear={clearEventToEdit} />
             {/if}
           </div>
-          {#key eventToEdit}
+          {#key initialValues}
             <RoomCompose
               {url}
               {h}
               {onSubmit}
               {onEscape}
               {onEditPrevious}
-              initialValues={eventToEdit}
+              {initialValues}
               bind:this={compose} />
           {/key}
         {/if}

src/app/components/RoomCompose.svelte

@@ -13,29 +13,22 @@
   import ComposeMenu from "@app/components/ComposeMenu.svelte"
   import EditorContent from "@app/editor/EditorContent.svelte"
   import {makeEditor} from "@app/editor"
-  import {DraftKey} from "@app/drafts"
+  import {DraftKey, type Draft} from "@app/drafts"
+  import type {Share} from "@app/share"
   import {onDestroy, onMount} from "svelte"
 
-  type Values = {
-    content?: string | object
-  }
-
   type Props = {
     url?: string
     h?: string
     onEscape?: () => void
     onEditPrevious?: () => void
     onSubmit: (event: EventContent) => void
-    initialValues?: Values
+    initialValues?: Share
   }
 
-  let {url, h, initialValues, onEscape, onEditPrevious, onSubmit}: Props = $props()
+  const {url, h, initialValues, onEscape, onEditPrevious, onSubmit}: Props = $props()
 
-  const draftKey = url || h ? new DraftKey<Values>(`room:${url ?? ""}:${h ?? ""}`) : undefined
+  const draftKey = url || h ? new DraftKey<Draft>(`room:${url ?? ""}:${h ?? ""}`) : undefined
-
-  if (!initialValues) {
-    initialValues = draftKey?.get()
-  }
 
   const autofocus = !isMobile
 
@@ -76,7 +69,9 @@
   }
 
   let popover: Instance | undefined = $state()
-  let content = $state(initialValues?.content ?? "")
+  let content = $state(
+    initialValues?.type === "text" ? initialValues.value : (draftKey?.get()?.content ?? ""),
+  )
 
   const onChange = (json: object) => {
     content = json
@@ -98,6 +93,12 @@
   onMount(async () => {
     const ed = await editor
     ed.view.dom.addEventListener("keydown", handleKeyDown)
+
+    if (initialValues?.type === "file") {
+      ed.chain()
+        .addFile(initialValues.value, ed.state.selection.from + 1)
+        .run()
+    }
   })
 
   onDestroy(async () => {

src/app/components/Share.svelte

@@ -0,0 +1,137 @@
+<script lang="ts">
+  import {derived} from "svelte/store"
+  import cx from "classnames"
+  import {remove} from "@welshman/lib"
+  import AltArrowLeft from "@assets/icons/alt-arrow-left.svg?dataurl"
+  import AltArrowRight from "@assets/icons/alt-arrow-right.svg?dataurl"
+  import Magnifier from "@assets/icons/magnifier.svg?dataurl"
+  import {preventDefault} from "@lib/html"
+  import Button from "@lib/components/Button.svelte"
+  import Icon from "@lib/components/Icon.svelte"
+  import Modal from "@lib/components/Modal.svelte"
+  import ModalBody from "@lib/components/ModalBody.svelte"
+  import ModalFooter from "@lib/components/ModalFooter.svelte"
+  import ModalHeader from "@lib/components/ModalHeader.svelte"
+  import ModalSubtitle from "@lib/components/ModalSubtitle.svelte"
+  import ModalTitle from "@lib/components/ModalTitle.svelte"
+  import ProfileCircle from "@app/components/ProfileCircle.svelte"
+  import ProfileCircles from "@app/components/ProfileCircles.svelte"
+  import ProfileName from "@app/components/ProfileName.svelte"
+  import RelayName from "@app/components/RelayName.svelte"
+  import RoomNameWithImage from "@app/components/RoomNameWithImage.svelte"
+  import {chatSearch} from "@app/chats"
+  import {user} from "@app/core"
+  import {deriveUserRoomSearch} from "@app/rooms"
+  import {makeChatPath, makeRoomPath} from "@app/routes"
+  import {shareTo, type Share} from "@app/share"
+
+  type Props = {
+    share: Share
+  }
+
+  const {share}: Props = $props()
+
+  const roomSearch = deriveUserRoomSearch()
+
+  const toggle = (path: string) => {
+    selection = path === selection ? "" : path
+  }
+
+  const back = () => history.back()
+
+  const submit = () => shareTo(selection, share, {replaceState: true})
+
+  let term = $state("")
+  let selection = $state("")
+
+  const roomResults = $derived($roomSearch.searchOptions(term))
+  const chatResults = $derived($chatSearch.searchOptions(term))
+</script>
+
+<Modal tag="form" onsubmit={preventDefault(submit)}>
+  <ModalBody>
+    <ModalHeader>
+      <ModalTitle>Share</ModalTitle>
+      <ModalSubtitle>Where would you like to share this?</ModalSubtitle>
+    </ModalHeader>
+    <label class="input input-sm flex w-full items-center gap-2">
+      <Icon size={4} icon={Magnifier} />
+      <input
+        bind:value={term}
+        class="min-w-0 grow"
+        type="text"
+        placeholder="Search rooms and conversations..." />
+    </label>
+    <div class="flex min-h-96 flex-col gap-4">
+      {#if roomResults.length > 0}
+        <p class="text-xs uppercase tracking-wide opacity-60">Rooms</p>
+        <div class="flex flex-col gap-2">
+          {#each roomResults as { url, h } (makeRoomPath(url, h))}
+            {@const path = makeRoomPath(url, h)}
+            <Button
+              type="button"
+              class={cx(
+                "flex w-full min-w-0 items-center justify-between gap-2 button",
+                selection === path ? "button-primary" : "button-neutral",
+              )}
+              onclick={() => toggle(path)}>
+              <RoomNameWithImage {url} {h} />
+              <RelayName {url} class="min-w-0 truncate text-xs opacity-60" />
+            </Button>
+          {/each}
+        </div>
+      {/if}
+      {#if chatResults.length > 0}
+        <p class="text-xs uppercase tracking-wide opacity-60">Direct Messages</p>
+        <div class="flex flex-col gap-2">
+          {#each chatResults as chat (chat.id)}
+            {@const path = makeChatPath(chat.pubkeys)}
+            {@const others = remove($user.pubkey, chat.pubkeys)}
+            <Button
+              type="button"
+              class={cx(
+                "flex w-full min-w-0 items-center justify-start gap-2 button",
+                selection === path ? "button-primary" : "button-neutral",
+              )}
+              onclick={() => toggle(path)}>
+              {#if others.length > 1}
+                <ProfileCircles pubkeys={others} size={5} />
+                <span class="min-w-0 truncate">
+                  <ProfileName pubkey={others[0]} />
+                  +{others.length - 1}
+                </span>
+              {:else if others.length === 1}
+                <ProfileCircle pubkey={others[0]} size={5} />
+                <span class="min-w-0 truncate">
+                  <ProfileName pubkey={others[0]} />
+                </span>
+              {:else}
+                <ProfileCircle pubkey={$user.pubkey} size={5} />
+                Note to self
+              {/if}
+            </Button>
+          {/each}
+        </div>
+      {/if}
+      {#if roomResults.length === 0 && chatResults.length === 0}
+        <p class="py-12 text-center opacity-75">
+          {#if term}
+            Nothing matched your search.
+          {:else}
+            Join a space or start a conversation to have somewhere to share to.
+          {/if}
+        </p>
+      {/if}
+    </div>
+  </ModalBody>
+  <ModalFooter>
+    <Button class="button button-link" onclick={back}>
+      <Icon icon={AltArrowLeft} />
+      Go back
+    </Button>
+    <Button type="submit" class="button button-primary" disabled={!selection}>
+      Share
+      <Icon icon={AltArrowRight} />
+    </Button>
+  </ModalFooter>
+</Modal>

src/app/components/ShareEvent.svelte

@@ -1,10 +1,8 @@
 <script lang="ts">
-  import {goto} from "$app/navigation"
   import type {TrustedEvent} from "@welshman/util"
   import {preventDefault} from "@lib/html"
   import AltArrowLeft from "@assets/icons/alt-arrow-left.svg?dataurl"
   import AltArrowRight from "@assets/icons/alt-arrow-right.svg?dataurl"
-  import {setKey} from "@lib/implicit"
   import Icon from "@lib/components/Icon.svelte"
   import Button from "@lib/components/Button.svelte"
   import ModalHeader from "@lib/components/ModalHeader.svelte"
@@ -15,6 +13,7 @@
   import ModalBody from "@lib/components/ModalBody.svelte"
   import RoomNameWithImage from "@app/components/RoomNameWithImage.svelte"
   import {makeRoomPath} from "@app/routes"
+  import {shareTo} from "@app/share"
   import {rooms} from "@app/core"
 
   type Props = {
@@ -30,8 +29,7 @@
   const back = () => history.back()
 
   const onSubmit = () => {
-    setKey("share", event)
+    shareTo(makeRoomPath(url, selection), {type: "event", value: event}, {replaceState: true})
-    goto(makeRoomPath(url, selection), {replaceState: true})
   }
 
   const toggleRoom = (h: string) => {

src/app/drafts.ts

@@ -1,5 +1,9 @@
 const store = new Map<string, unknown>()
 
+export type Draft = {
+  content?: string | object
+}
+
 export class DraftKey<T> {
   constructor(private key: string) {}
 

src/app/editor/index.ts

@@ -20,7 +20,7 @@ import ProfileSuggestion from "@app/editor/ProfileSuggestion.svelte"
 import {RoomReferenceExtension} from "@app/editor/RoomReferenceExtension"
 import RoomSuggestion from "@app/editor/RoomSuggestion.svelte"
 import {NativeClipboardPasteExtension} from "@app/editor/clipboard"
-import {compressFileForUpload, uploadFile} from "@app/uploads"
+import {UPLOAD_MIME_TYPES, compressFileForUpload, uploadFile} from "@app/uploads"
 import {userSpaceUrls} from "@app/rooms"
 import {PLATFORM_RELAYS} from "@app/env"
 import {pushToast} from "@app/toast"
@@ -108,6 +108,7 @@ export const makeEditor = async ({
           },
           fileUpload: {
             config: {
+              allowedMimeTypes: UPLOAD_MIME_TYPES,
               upload: async (attrs: FileAttributes) =>
                 uploadFile(await compressFileForUpload(attrs.file), {url, encrypt: encryptFiles}),
               onDrop: () => uploading?.set(true),

src/app/rooms.ts

@@ -15,7 +15,7 @@ import {
   toNostrURI,
 } from "@welshman/util"
 import type {EventContent, TrustedEvent} from "@welshman/util"
-import {RoomLists, makeRoomKey} from "@welshman/app"
+import {RoomLists, makeRoomKey, createSearch} from "@welshman/app"
 import type {Room, RoomMeta} from "@welshman/app"
 import {
   deriveUserItem,
@@ -25,10 +25,12 @@ import {
   rooms,
   router,
   thunks,
+  relays,
   user,
 } from "@app/core"
 import {deriveUserIsSpaceAdmin} from "@app/management"
 import {deriveEventsForUrl} from "@app/repository"
+import {makeRoomPath} from "@app/routes"
 
 export enum MembershipStatus {
   Initial,
@@ -218,3 +220,30 @@ export const deriveUserRoomMembershipStatus = (url: string, h: string) =>
       return isMember ? MembershipStatus.Granted : MembershipStatus.Initial
     },
   )
+
+export const deriveUserRoomSearch = () =>
+  derived(
+    [userSpaceUrls, userRoomList, rooms.get().byUrl.$],
+    ([$userSpaceUrls, $userRoomList, $roomsByUrl]) => {
+      const options = $userSpaceUrls.flatMap(url => {
+        const favorites = new Set($userRoomList?.roomsForUrl(url) ?? [])
+        // Spaces that aren't NIP-29 relays keep all their messages in the space-wide chat
+        const roomIds = relays.get().get(url)?.hasNip(29)
+          ? ($roomsByUrl.get(url) ?? []).map(room => room.h)
+          : ["chat"]
+
+        return roomIds.map(h => ({
+          url,
+          h,
+          name: displayRoom(url, h),
+          isFavorite: favorites.has(h),
+        }))
+      })
+
+      return createSearch(options, {
+        getValue: option => makeRoomPath(option.url, option.h),
+        fuseOptions: {keys: ["name", "url"]},
+        sortFn: ({item}) => (item.isFavorite ? 0 : 1),
+      })
+    },
+  )

src/app/routes.ts

@@ -107,10 +107,10 @@ export const goToMovedSpace = (oldUrl: string, newUrl: string) =>
 
 export const goToHome = () => {
   if (PLATFORM_RELAYS.length > 0) {
-    goToSpace(PLATFORM_RELAYS[0], get(page).url.hash)
+    return goToSpace(PLATFORM_RELAYS[0], get(page).url.hash)
-  } else {
-    goto("/home" + get(page).url.hash)
   }
+
+  return goto("/home" + get(page).url.hash)
 }
 
 // Content types, events

src/app/share.ts

@@ -1,18 +1,108 @@
+import {writable} from "svelte/store"
 import {goto} from "$app/navigation"
+import {Capacitor, registerPlugin} from "@capacitor/core"
+import type {PluginListenerHandle} from "@capacitor/core"
+import {noop} from "@welshman/lib"
+import type {Maybe} from "@welshman/lib"
 import type {TrustedEvent} from "@welshman/util"
-import {setKey} from "@lib/implicit"
+import {app, relays} from "@app/core"
-import {relays} from "@app/core"
 import {pushModal} from "@app/modal"
 import {makeSpaceChatPath} from "@app/routes"
-import EventShare from "@app/components/EventShare.svelte"
+import {pushToast} from "@app/toast"
+import {UPLOAD_MIME_TYPES} from "@app/uploads"
+import ShareDialog from "@app/components/Share.svelte"
+import ShareEvent from "@app/components/ShareEvent.svelte"
 
-// Share an event to chat. On NIP-29 relays we prompt for a room to share into;
+export type Share =
-// otherwise we stash the event and jump to the space chat composer, which quotes it.
+  | {type: "event"; value: TrustedEvent}
-export const shareEventToChat = (url: string, noun: string, event: TrustedEvent) => {
+  | {type: "text"; value: string}
+  | {type: "file"; value: File}
+
+export const pendingShare = writable<Maybe<Share>>(undefined)
+
+// Set pendingShare after goto so the current view doesn't pop it
+export const shareTo = async (
+  path: string,
+  share: Share,
+  options: {replaceState?: boolean} = {},
+) => {
+  await goto(path, options)
+
+  pendingShare.set(share)
+}
+
+export const shareEvent = (url: string, noun: string, event: TrustedEvent) => {
   if (relays.get().get(url)?.hasNip(29)) {
-    pushModal(EventShare, {url, noun, event})
+    pushModal(ShareEvent, {url, noun, event})
   } else {
-    setKey("share", event)
+    shareTo(makeSpaceChatPath(url), {type: "event", value: event})
-    goto(makeSpaceChatPath(url))
   }
 }
+
+const openShareDialog = (share: Share) => {
+  if (app.get().user?.pubkey) {
+    pushModal(ShareDialog, {share})
+  }
+}
+
+export const shareText = (value: string) => openShareDialog({type: "text", value})
+
+type NativeShare = {
+  text?: string
+  path?: string
+  name?: string
+  type?: string
+}
+
+// Shared media is copied somewhere capacitor's file server can reach, since neither an android
+// content uri nor an ios app group url means anything to the web view.
+export const shareFromNative = async ({
+  text,
+  path,
+  name = "",
+  type: mimeType = "",
+}: NativeShare) => {
+  if (text) {
+    shareText(text)
+  } else if (path) {
+    if (!UPLOAD_MIME_TYPES.includes(mimeType)) {
+      return pushToast({theme: "error", message: "Flotilla can't share that type of file."})
+    }
+
+    try {
+      const response = await fetch(Capacitor.convertFileSrc(path))
+
+      if (!response.ok) {
+        throw new Error(`Failed to read ${path} (${response.status})`)
+      }
+
+      const value = new File([await response.blob()], name, {type: mimeType})
+
+      openShareDialog({type: "file", value})
+    } catch (e) {
+      console.error(e)
+      pushToast({theme: "error", message: "Something went wrong reading the shared file."})
+    }
+  }
+}
+
+type ShareIntentPlugin = {
+  addListener(
+    eventName: "shareReceived",
+    listener: (share: NativeShare) => void,
+  ): Promise<PluginListenerHandle>
+}
+
+const ShareIntent = registerPlugin<ShareIntentPlugin>("ShareIntent")
+
+export const setupShareIntents = () => {
+  if (Capacitor.getPlatform() === "android") {
+    const listener = ShareIntent.addListener("shareReceived", shareFromNative)
+
+    return () => {
+      listener.then(handle => handle.remove())
+    }
+  }
+
+  return noop
+}

src/app/uploads.ts

@@ -61,6 +61,22 @@ export const getBlossomServer = async (options: GetBlossomServerOptions = {}) =>
   return first(DEFAULT_BLOSSOM_SERVERS)!
 }
 
+// The editor's default list leaves out the formats an iPhone camera actually produces, so
+// anything shared from Photos would be rejected without a word. Heic gets re-encoded by the
+// compressor on its way to a blossom server; quicktime is uploaded as-is.
+export const UPLOAD_MIME_TYPES = [
+  "image/jpeg",
+  "image/png",
+  "image/gif",
+  "image/webp",
+  "image/heic",
+  "image/heif",
+  "video/mp4",
+  "video/mpeg",
+  "video/webm",
+  "video/quicktime",
+]
+
 export type CompressFileOptions = {
   maxWidth?: number
   maxHeight?: number

src/routes/+layout.svelte

@@ -28,6 +28,7 @@
   import {kv, ss, storage} from "@app/storage"
   import {device} from "@app/device"
   import {userSettingsValues, notificationSettings} from "@app/settings"
+  import {setupShareIntents, shareFromNative} from "@app/share"
   import {shouldUnwrap, syncApplicationData} from "@app/sync"
   import * as env from "@app/env"
   import {theme} from "@app/theme"
@@ -68,6 +69,13 @@
       return
     }
 
+    // The iOS share extension can't talk to us directly, so it hands its payload over as a
+    // flotilla://share url
+    if (url.host === "share") {
+      shareFromNative(Object.fromEntries(url.searchParams))
+      return
+    }
+
     if (url.host === "x-callback-url") {
       if (url.pathname === "/authError") {
         const errorMessage = url.searchParams.get("errorMessage")
@@ -161,6 +169,9 @@
     // History, navigation, application data
     unsubscribers.push(setupHistory(), setupAnalytics(), syncApplicationData())
 
+    // Listen for links shared into the app from elsewhere on the device
+    unsubscribers.push(setupShareIntents())
+
     // Initialize keyboard state tracking
     unsubscribers.push(syncKeyboard())
 

src/routes/+page.svelte

@@ -1,5 +1,7 @@
 <script lang="ts">
   import {goToHome} from "@app/routes"
 
-  $effect(goToHome)
+  $effect(() => {
+    goToHome()
+  })
 </script>

src/routes/share/+page.svelte

@@ -0,0 +1,14 @@
+<script lang="ts">
+  import {onMount} from "svelte"
+  import {page} from "$app/stores"
+  import {goToHome} from "@app/routes"
+  import {shareFromNative} from "@app/share"
+
+  const params = Object.fromEntries($page.url.searchParams)
+
+  onMount(async () => {
+    await goToHome()
+
+    shareFromNative(params)
+  })
+</script>

src/routes/spaces/[relay]/library/[address]/+page.svelte

@@ -29,7 +29,7 @@
   import {app, deletes, network} from "@app/core"
   import {deriveUserIsSpaceAdmin} from "@app/management"
   import {decodeRelay} from "@app/relays"
-  import {shareEventToChat} from "@app/share"
+  import {shareEvent} from "@app/share"
   import {pushModal} from "@app/modal"
   import {pushToast} from "@app/toast"
 
@@ -80,7 +80,7 @@
     menuOpen = false
 
     if ($board) {
-      shareEventToChat(url, "Shelf", $board.event)
+      shareEvent(url, "Shelf", $board.event)
     }
   }
 

vite.config.ts

@@ -13,7 +13,9 @@ export default defineConfig({
   // carries node_modules from welshman's own install — a second prosemirror, whose Plugin and
   // PluginKey classes tiptap refuses to mix with ours ("Adding different instances of a keyed
   // plugin"). Deduping resolves these to this project's copy wherever they are imported from, and
-  // does nothing when only one copy exists.
+  // does nothing when only one copy exists. Vite resolves a deduped package from the project root
+  // and nowhere else, so every name listed here has to be a direct dependency — under pnpm a
+  // transitive one isn't reachable from the root and the build fails to resolve it.
   resolve: {
     dedupe: [
       "@tiptap/core",