fix: use actionRunCallback to launch browser from widget

Fixes COMPOSE-LOBSTERS-8M

android/proguard-rules.pro

@@ -1,2 +1,7 @@
 -dontobfuscate
 -keepattributes SourceFile, LineNumberTable
+
+# Keep Glance ActionCallback classes for reflection
+-keep class * implements androidx.glance.action.ActionCallback {
+    public <init>();
+}

android/src/main/kotlin/dev/msfjarvis/claw/android/glance/OpenUrlCallback.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright © Harsh Shandilya.
+ * Use of this source code is governed by an MIT-style
+ * license that can be found in the LICENSE file or at
+ * https://opensource.org/licenses/MIT.
+ */
+package dev.msfjarvis.claw.android.glance
+
+import android.content.Context
+import android.content.Intent
+import androidx.core.net.toUri
+import androidx.glance.GlanceId
+import androidx.glance.action.ActionParameters
+import androidx.glance.appwidget.action.ActionCallback
+
+class OpenUrlCallback : ActionCallback {
+  override suspend fun onAction(
+    context: Context,
+    glanceId: GlanceId,
+    parameters: ActionParameters,
+  ) {
+    val url = parameters[urlKey] ?: return
+    val intent =
+      Intent(Intent.ACTION_VIEW, url.toUri()).apply { addFlags(Intent.FLAG_ACTIVITY_NEW_TASK) }
+    context.startActivity(intent)
+  }
+
+  companion object {
+    val urlKey = ActionParameters.Key<String>("url")
+  }
+}

android/src/main/kotlin/dev/msfjarvis/claw/android/glance/WidgetListEntry.kt

@@ -6,11 +6,9 @@
  */
 package dev.msfjarvis.claw.android.glance
 
-import android.content.Intent
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.unit.dp
-import androidx.core.net.toUri
 import androidx.glance.GlanceComposable
 import androidx.glance.GlanceModifier
 import androidx.glance.GlanceTheme
@@ -20,7 +18,7 @@ import androidx.glance.action.ActionParameters.Key
 import androidx.glance.action.actionParametersOf
 import androidx.glance.action.actionStartActivity
 import androidx.glance.action.clickable
-import androidx.glance.appwidget.action.actionStartActivity
+import androidx.glance.appwidget.action.actionRunCallback
 import androidx.glance.appwidget.cornerRadius
 import androidx.glance.background
 import androidx.glance.layout.Alignment
@@ -43,10 +41,9 @@ fun WidgetListEntry(post: UIPost, modifier: GlanceModifier = GlanceModifier) {
   val titleStyle = MaterialTheme.typography.titleMedium
   val commentsAction =
     actionStartActivity<MainActivity>(actionParametersOf(destinationKey to post.shortId))
-  // If the URL starts with a /, it's a relative URL and we should open the comments page directly.
   val postAction =
     if (post.url.startsWith('/')) commentsAction
-    else actionStartActivity(Intent(Intent.ACTION_VIEW, post.url.toUri()))
+    else actionRunCallback<OpenUrlCallback>(actionParametersOf(OpenUrlCallback.urlKey to post.url))
   Box(modifier.padding(8.dp)) {
     Row(
       verticalAlignment = Alignment.CenterVertically,