[fenix] Closes https://github.com/mozilla-mobile/fenix/issues/19182: Close Tabs Tray when sharing completes

app/src/main/java/org/mozilla/fenix/share/ShareFragment.kt

@@ -10,6 +10,7 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatDialogFragment
+import androidx.fragment.app.setFragmentResult
 import androidx.fragment.app.viewModels
 import androidx.lifecycle.ViewModelProvider.AndroidViewModelFactory
 import androidx.lifecycle.lifecycleScope
@@ -121,6 +122,12 @@ class ShareFragment : AppCompatDialogFragment() {
         }
     }
 
+    override fun onDestroy() {
+        setFragmentResult(RESULT_KEY, Bundle())
+
+        super.onDestroy()
+    }
+
     /**
      * If [ShareFragmentArgs.sessionId] is set and the session has a pending Web Share
      * prompt request, call [consume] then clean up the prompt.
@@ -142,5 +149,6 @@ class ShareFragment : AppCompatDialogFragment() {
 
     companion object {
         const val SHOW_PAGE_ALPHA = 0.6f
+        const val RESULT_KEY = "shareFragmentResultKey"
     }
 }

app/src/main/java/org/mozilla/fenix/tabstray/TabsTrayFragment.kt

@@ -15,6 +15,7 @@ import androidx.annotation.VisibleForTesting
 import androidx.appcompat.app.AppCompatDialogFragment
 import androidx.core.view.isVisible
 import androidx.fragment.app.activityViewModels
+import androidx.fragment.app.setFragmentResultListener
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
 import androidx.navigation.fragment.navArgs
@@ -35,6 +36,7 @@ import org.mozilla.fenix.HomeActivity
 import org.mozilla.fenix.NavGraphDirections
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.FenixSnackbar
+import org.mozilla.fenix.share.ShareFragment
 import org.mozilla.fenix.components.StoreProvider
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.ext.components
@@ -278,6 +280,10 @@ class TabsTrayFragment : AppCompatDialogFragment() {
             owner = this,
             view = view
         )
+
+        setFragmentResultListener(ShareFragment.RESULT_KEY) { _, _ ->
+            dismissTabsTray()
+        }
     }
 
     override fun onConfigurationChanged(newConfig: Configuration) {