Add diagnostic breadcrumbs for debugging "Display already aquired" crashes.

For:
https://github.com/mozilla-mobile/android-components/issues/7960

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

@@ -6,6 +6,7 @@ package org.mozilla.fenix
 
 import android.content.Context
 import android.content.Intent
+import android.content.res.Configuration
 import android.os.Build
 import android.os.Bundle
 import android.os.StrictMode
@@ -69,6 +70,7 @@ import org.mozilla.fenix.components.metrics.BreadcrumbsRecorder
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.exceptions.trackingprotection.TrackingProtectionExceptionsFragmentDirections
 import org.mozilla.fenix.ext.alreadyOnDestination
+import org.mozilla.fenix.ext.breadcrumb
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.metrics
 import org.mozilla.fenix.ext.nav
@@ -155,6 +157,16 @@ open class HomeActivity : LocaleAwareAppCompatActivity(), NavHostActivity {
             super.onCreate(savedInstanceState)
         }
 
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onCreate()",
+            data = mapOf(
+                "recreated" to (savedInstanceState != null).toString(),
+                "intent" to (intent?.action ?: "null")
+            )
+        )
+
         components.publicSuffixList.prefetch()
 
         setupThemeAndBrowsingMode(getModeFromIntentOrLastKnown(intent))
@@ -233,6 +245,12 @@ open class HomeActivity : LocaleAwareAppCompatActivity(), NavHostActivity {
     override fun onResume() {
         super.onResume()
 
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onResume()"
+        )
+
         components.backgroundServices.accountManagerAvailableQueue.runIfReadyOrQueue {
             lifecycleScope.launch {
                 // Make sure accountManager is initialized.
@@ -260,6 +278,29 @@ open class HomeActivity : LocaleAwareAppCompatActivity(), NavHostActivity {
         }
     }
 
+    override fun onStart() {
+        super.onStart()
+
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onStart()"
+        )
+    }
+
+    override fun onStop() {
+        super.onStop()
+
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onStop()",
+            data = mapOf(
+                "finishing" to isFinishing.toString()
+            )
+        )
+    }
+
     final override fun onPause() {
         if (settings().lastKnownMode.isPrivate) {
             window.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
@@ -267,6 +308,15 @@ open class HomeActivity : LocaleAwareAppCompatActivity(), NavHostActivity {
 
         super.onPause()
 
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onPause()",
+            data = mapOf(
+                "finishing" to isFinishing.toString()
+            )
+        )
+
         // Every time the application goes into the background, it is possible that the user
         // is about to change the browsers installed on their system. Therefore, we reset the cache of
         // all the installed browsers.
@@ -277,9 +327,39 @@ open class HomeActivity : LocaleAwareAppCompatActivity(), NavHostActivity {
 
     override fun onDestroy() {
         super.onDestroy()
+
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onDestroy()",
+            data = mapOf(
+                "finishing" to isFinishing.toString()
+            )
+        )
+
         privateNotificationObserver?.stop()
     }
 
+    override fun onConfigurationChanged(newConfig: Configuration) {
+        super.onConfigurationChanged(newConfig)
+
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onConfigurationChanged()"
+        )
+    }
+
+    override fun recreate() {
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "recreate()"
+        )
+
+        super.recreate()
+    }
+
     /**
      * Handles intents received when the activity is open.
      */
@@ -287,6 +367,15 @@ open class HomeActivity : LocaleAwareAppCompatActivity(), NavHostActivity {
         super.onNewIntent(intent)
         intent ?: return
 
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onNewIntent()",
+            data = mapOf(
+                "intent" to intent.action.toString()
+            )
+        )
+
         val intentProcessors =
             listOf(CrashReporterIntentProcessor()) + externalSourceIntentProcessors
         val intentHandled =

app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt

@@ -98,6 +98,7 @@ import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.downloads.DownloadService
 import org.mozilla.fenix.downloads.DynamicDownloadDialog
 import org.mozilla.fenix.ext.accessibilityManager
+import org.mozilla.fenix.ext.breadcrumb
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.enterToImmersiveMode
 import org.mozilla.fenix.ext.getPreferenceKey
@@ -170,6 +171,15 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
         require(arguments != null)
         customTabSessionId = arguments?.getString(EXTRA_SESSION_ID)
 
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onCreateView()",
+            data = mapOf(
+                "customTabSessionId" to customTabSessionId.toString()
+            )
+        )
+
         val view = inflater.inflate(R.layout.fragment_browser, container, false)
 
         val activity = activity as HomeActivity
@@ -1061,11 +1071,38 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
      */
     override fun onDestroyView() {
         super.onDestroyView()
+
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onDestroyView()"
+        )
+
         requireContext().accessibilityManager.removeAccessibilityStateChangeListener(this)
         _browserToolbarView = null
         _browserInteractor = null
     }
 
+    override fun onAttach(context: Context) {
+        super.onAttach(context)
+
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onAttach()"
+        )
+    }
+
+    override fun onDetach() {
+        super.onDetach()
+
+        // Diagnostic breadcrumb for "Display already aquired" crash:
+        // https://github.com/mozilla-mobile/android-components/issues/7960
+        breadcrumb(
+            message = "onDetach()"
+        )
+    }
+
     companion object {
         private const val KEY_CUSTOM_TAB_SESSION_ID = "custom_tab_session_id"
         private const val REQUEST_CODE_DOWNLOAD_PERMISSIONS = 1

app/src/main/java/org/mozilla/fenix/ext/Activity.kt

@@ -7,6 +7,7 @@ package org.mozilla.fenix.ext
 import android.app.Activity
 import android.view.View
 import android.view.WindowManager
+import mozilla.components.support.base.crash.Breadcrumb
 
 /**
  * Attempts to call immersive mode using the View to hide the status bar and navigation buttons.
@@ -22,3 +23,19 @@ fun Activity.enterToImmersiveMode() {
             or View.SYSTEM_UI_FLAG_FULLSCREEN
             or View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY)
 }
+
+fun Activity.breadcrumb(
+    message: String,
+    data: Map<String, String> = emptyMap()
+) {
+    components.analytics.crashReporter.recordCrashBreadcrumb(
+        Breadcrumb(
+            category = this::class.java.simpleName,
+            message = message,
+            data = data + mapOf(
+                "instance" to this.hashCode().toString()
+            ),
+            level = Breadcrumb.Level.INFO
+        )
+    )
+}

app/src/main/java/org/mozilla/fenix/ext/Fragment.kt

@@ -12,6 +12,7 @@ import androidx.navigation.NavDirections
 import androidx.navigation.NavOptions
 import androidx.navigation.fragment.NavHostFragment.findNavController
 import androidx.navigation.fragment.findNavController
+import mozilla.components.support.base.crash.Breadcrumb
 import org.mozilla.fenix.NavHostActivity
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.Components
@@ -57,3 +58,23 @@ fun Fragment.redirectToReAuth(destinations: List<Int>, currentDestination: Int?)
         findNavController().popBackStack(R.id.savedLoginsAuthFragment, false)
     }
 }
+
+fun Fragment.breadcrumb(
+    message: String,
+    data: Map<String, String> = emptyMap()
+) {
+    val activityName = activity?.let { it::class.java.simpleName } ?: "null"
+
+    requireComponents.analytics.crashReporter.recordCrashBreadcrumb(
+        Breadcrumb(
+            category = this::class.java.simpleName,
+            message = message,
+            data = data + mapOf(
+                "instance" to hashCode().toString(),
+                "activityInstance" to activity?.hashCode().toString(),
+                "activityName" to activityName
+            ),
+            level = Breadcrumb.Level.INFO
+        )
+    )
+}