[fenix] For https://github.com/mozilla-mobile/fenix/issues/4804: Resolves issue with crash reporter stack

app/src/main/java/org/mozilla/fenix/HomeActivity.kt

@@ -122,8 +122,14 @@ open class HomeActivity : AppCompatActivity(), ShareFragment.TabsSharedCallback
 
     override fun onNewIntent(intent: Intent?) {
         super.onNewIntent(intent)
-        handleCrashIfNecessary(intent)
-        handleOpenedFromExternalSourceIfNecessary(intent)
+
+        intent?.let {
+            if (Crash.isCrashIntent(it)) {
+                openToCrashReporter(it)
+            } else {
+                handleOpenedFromExternalSourceIfNecessary(it)
+            }
+        }
     }
 
     override fun onResume() {
@@ -164,17 +170,6 @@ open class HomeActivity : AppCompatActivity(), ShareFragment.TabsSharedCallback
         super.onBackPressed()
     }
 
-    private fun handleCrashIfNecessary(intent: Intent?) {
-        if (intent == null) {
-            return
-        }
-        if (!Crash.isCrashIntent(intent)) {
-            return
-        }
-
-        openToCrashReporter(intent)
-    }
-
     private fun openToCrashReporter(intent: Intent) {
         val directions = NavGraphDirections.actionGlobalCrashReporter(intent)
         navHost.navController.navigate(directions)

app/src/main/java/org/mozilla/fenix/crashes/CrashReporterFragment.kt

@@ -11,12 +11,14 @@ import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
 import androidx.fragment.app.Fragment
 import androidx.navigation.Navigation
+import androidx.navigation.fragment.findNavController
 import kotlinx.android.synthetic.main.fragment_crash_reporter.*
 import mozilla.components.browser.session.Session
 import mozilla.components.lib.crash.Crash
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.ext.components
+import org.mozilla.fenix.ext.nav
 import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.utils.Settings
 
@@ -61,7 +63,7 @@ class CrashReporterFragment : Fragment() {
         } else {
             requireComponents.useCases.tabsUseCases.removeTab.invoke(session)
             requireComponents.useCases.sessionUseCases.crashRecovery.invoke()
-            navigateHome(view!!)
+            navigateHome()
         }
     }
 
@@ -74,7 +76,8 @@ class CrashReporterFragment : Fragment() {
         requireContext().components.analytics.metrics.track(Event.CrashReporterClosed(didSubmitCrashReport))
     }
 
-    private fun navigateHome(fromView: View) {
-        Navigation.findNavController(fromView).popBackStack(R.id.browserFragment, true)
+    private fun navigateHome() {
+        val directions = CrashReporterFragmentDirections.actionCrashReporterFragmentToHomeFragment()
+        findNavController().nav(R.id.crashReporterFragment, directions)
     }
 }

app/src/main/res/navigation/nav_graph.xml

@@ -369,7 +369,8 @@
         android:label="CrashReporterFragment">
         <action
             android:id="@+id/action_crashReporterFragment_to_homeFragment"
-            app:destination="@id/homeFragment" />
+            app:destination="@id/homeFragment"
+            app:popUpTo="@id/nav_graph"/>
         <argument
             android:name="crashIntent"
             app:argType="android.content.Intent" />