Refine filtering of share types.

SignalShareExtension/Info.plist

@@ -53,21 +53,20 @@
 	<dict>
 		<key>NSExtensionAttributes</key>
 		<dict>
-			<key>NSExtensionActivationRule</key>
-			<dict>
-				<key>NSExtensionActivationSupportsFileWithMaxCount</key>
-				<integer>1</integer>
-				<key>NSExtensionActivationSupportsImageWithMaxCount</key>
-				<integer>1</integer>
-				<key>NSExtensionActivationSupportsMovieWithMaxCount</key>
-				<integer>1</integer>
-				<key>NSExtensionActivationSupportsText</key>
-				<true/>
-				<key>NSExtensionActivationSupportsWebPageWithMaxCount</key>
-				<integer>1</integer>
-				<key>NSExtensionActivationSupportsWebURLWithMaxCount</key>
-				<integer>1</integer>
-			</dict>
+            <key>NSExtensionActivationRule</key>
+            <string>SUBQUERY (
+                extensionItems,
+                $extensionItem,
+                SUBQUERY (
+                $extensionItem.attachments,
+                $attachment,
+                (
+                ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.data"
+                || ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.url"
+                )
+                ).@count == 1
+                ).@count == 1
+            </string>
 		</dict>
 		<key>NSExtensionMainStoryboard</key>
 		<string>MainInterface</string>