[fenix] For https://github.com/mozilla-mobile/fenix/issues/14239: Notification for QR scan when permissions have been denied (https://github.com/mozilla-mobile/fenix/pull/14553)

* Show dialog when permissions are denied

* Add qr permissions dialog to search dialog fragment

* Add qr permissions dialog to the pairing screen

* Show dialog after permissions have been denied

* Reset focus after denying permissions

* Show dialog after permissions denied in search frag and par frag

* Use shared preferences to store camera permission state

* Move dialog creation into the search controller and add tests

* Dialog controller implementation and test

* Route to intent with correct activity. Set focus when dismissing dialog

* Get preferences in old search

app/src/main/java/org/mozilla/fenix/search/SearchController.kt

@@ -4,7 +4,13 @@
 
 package org.mozilla.fenix.search
 
+import android.content.DialogInterface
 import android.content.Intent
+import android.net.Uri
+import android.os.Build
+import android.text.SpannableString
+import androidx.annotation.VisibleForTesting
+import androidx.appcompat.app.AlertDialog
 import androidx.navigation.NavController
 import mozilla.components.browser.search.SearchEngine
 import mozilla.components.browser.session.Session
@@ -29,6 +35,7 @@ import org.mozilla.fenix.utils.Settings
 /**
  * An interface that handles the view manipulation of the Search, triggered by the Interactor
  */
+@Suppress("TooManyFunctions")
 interface SearchController {
     fun handleUrlCommitted(url: String)
     fun handleEditingCancelled()
@@ -40,6 +47,7 @@ interface SearchController {
     fun handleExistingSessionSelected(session: Session)
     fun handleExistingSessionSelected(tabId: String)
     fun handleSearchShortcutsButtonClicked()
+    fun handleCameraPermissionsNeeded()
 }
 
 @Suppress("TooManyFunctions", "LongParameterList")
@@ -194,4 +202,51 @@ class DefaultSearchController(
             handleExistingSessionSelected(session)
         }
     }
+
+    /**
+     * Creates and shows an [AlertDialog] when camera permissions are needed.
+     *
+     * In versions above M, [AlertDialog.BUTTON_POSITIVE] takes the user to the app settings. This
+     * intent only exists in M and above. Below M, [AlertDialog.BUTTON_POSITIVE] routes to a SUMO
+     * help page to find the app settings.
+     *
+     * [AlertDialog.BUTTON_NEGATIVE] dismisses the dialog.
+     */
+    override fun handleCameraPermissionsNeeded() {
+        val dialog = buildDialog()
+        dialog.show()
+    }
+
+    @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
+    fun buildDialog(): AlertDialog.Builder {
+        return AlertDialog.Builder(activity).apply {
+            val spannableText = SpannableString(
+                activity.resources.getString(R.string.camera_permissions_needed_message)
+            )
+            setMessage(spannableText)
+            setNegativeButton(R.string.camera_permissions_needed_negative_button_text) {
+                    dialog: DialogInterface, _ ->
+                dialog.cancel()
+            }
+            setPositiveButton(R.string.camera_permissions_needed_positive_button_text) {
+                    dialog: DialogInterface, _ ->
+                val intent: Intent = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                    Intent(android.provider.Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
+                } else {
+                    SupportUtils.createCustomTabIntent(
+                        activity,
+                        SupportUtils.getSumoURLForTopic(
+                            activity,
+                            SupportUtils.SumoTopic.QR_CAMERA_ACCESS
+                        )
+                    )
+                }
+                val uri = Uri.fromParts("package", activity.packageName, null)
+                intent.data = uri
+                dialog.cancel()
+                activity.startActivity(intent)
+            }
+            create()
+        }
+    }
 }

app/src/main/java/org/mozilla/fenix/search/SearchFragment.kt

@@ -26,6 +26,7 @@ import androidx.core.widget.NestedScrollView
 import androidx.fragment.app.Fragment
 import androidx.navigation.fragment.findNavController
 import androidx.navigation.fragment.navArgs
+import androidx.preference.PreferenceManager
 import kotlinx.android.synthetic.main.fragment_search.*
 import kotlinx.android.synthetic.main.fragment_search.view.*
 import kotlinx.android.synthetic.main.search_suggestions_hint.view.*
@@ -50,6 +51,7 @@ import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.searchengine.CustomSearchEngineStore
 import org.mozilla.fenix.components.searchengine.FenixSearchEngineProvider
 import org.mozilla.fenix.ext.components
+import org.mozilla.fenix.ext.getPreferenceKey
 import org.mozilla.fenix.ext.hideToolbar
 import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.settings
@@ -219,6 +221,7 @@ class SearchFragment : Fragment(), UserInteractionHandler {
                             setNegativeButton(R.string.qr_scanner_dialog_negative) { dialog: DialogInterface, _ ->
                                 requireComponents.analytics.metrics.track(Event.QRScannerNavigationDenied)
                                 dialog.cancel()
+                                resetFocus()
                             }
                             setPositiveButton(R.string.qr_scanner_dialog_positive) { dialog: DialogInterface, _ ->
                                 requireComponents.analytics.metrics.track(Event.QRScannerNavigationAllowed)
@@ -229,6 +232,7 @@ class SearchFragment : Fragment(), UserInteractionHandler {
                                         from = BrowserDirection.FromSearch
                                     )
                                 dialog.dismiss()
+                                resetFocus()
                             }
                             create()
                         }.show()
@@ -241,8 +245,19 @@ class SearchFragment : Fragment(), UserInteractionHandler {
 
         view.search_scan_button.setOnClickListener {
             toolbarView.view.clearFocus()
-            requireComponents.analytics.metrics.track(Event.QRScannerOpened)
+
-            qrFeature.get()?.scan(R.id.container)
+            val cameraPermissionsDenied = PreferenceManager.getDefaultSharedPreferences(context)
+                .getBoolean(
+                    getPreferenceKey(R.string.pref_key_camera_permissions),
+                    false
+                )
+
+            if (cameraPermissionsDenied) {
+                searchInteractor.onCameraPermissionsNeeded()
+            } else {
+                requireComponents.analytics.metrics.track(Event.QRScannerOpened)
+                qrFeature.get()?.scan(R.id.container)
+            }
         }
 
         view.search_engines_shortcut_button.setOnClickListener {
@@ -368,15 +383,19 @@ class SearchFragment : Fragment(), UserInteractionHandler {
     override fun onBackPressed(): Boolean {
         return when {
             qrFeature.onBackPressed() -> {
-                toolbarView.view.edit.focus()
+                resetFocus()
-                view?.search_scan_button?.isChecked = false
-                toolbarView.view.requestFocus()
                 true
             }
             else -> false
         }
     }
 
+    private fun resetFocus() {
+        search_scan_button.isChecked = false
+        toolbarView.view.edit.focus()
+        toolbarView.view.requestFocus()
+    }
+
     private fun updateSearchWithLabel(searchState: SearchFragmentState) {
         search_engine_shortcut.visibility =
             if (searchState.showSearchShortcuts) View.VISIBLE else View.GONE
@@ -408,8 +427,16 @@ class SearchFragment : Fragment(), UserInteractionHandler {
                 context?.let { context: Context ->
                     if (context.isPermissionGranted(Manifest.permission.CAMERA)) {
                         permissionDidUpdate = true
+                        PreferenceManager.getDefaultSharedPreferences(context)
+                            .edit().putBoolean(
+                                getPreferenceKey(R.string.pref_key_camera_permissions), false
+                            ).apply()
                     } else {
-                        view?.search_scan_button?.isChecked = false
+                        PreferenceManager.getDefaultSharedPreferences(context)
+                            .edit().putBoolean(
+                                getPreferenceKey(R.string.pref_key_camera_permissions), true
+                            ).apply()
+                        resetFocus()
                     }
                 }
             }

app/src/main/java/org/mozilla/fenix/search/SearchInteractor.kt

@@ -13,6 +13,7 @@ import org.mozilla.fenix.search.toolbar.ToolbarInteractor
  * Interactor for the search screen
  * Provides implementations for the AwesomeBarView and ToolbarView
  */
+@Suppress("TooManyFunctions")
 class SearchInteractor(
     private val searchController: SearchController
 ) : AwesomeBarInteractor, ToolbarInteractor {
@@ -56,4 +57,8 @@ class SearchInteractor(
     override fun onExistingSessionSelected(tabId: String) {
         searchController.handleExistingSessionSelected(tabId)
     }
+
+    fun onCameraPermissionsNeeded() {
+        searchController.handleCameraPermissionsNeeded()
+    }
 }

app/src/main/java/org/mozilla/fenix/searchdialog/SearchDialogController.kt

@@ -4,7 +4,13 @@
 
 package org.mozilla.fenix.searchdialog
 
+import android.content.DialogInterface
 import android.content.Intent
+import android.net.Uri
+import android.os.Build
+import android.text.SpannableString
+import androidx.annotation.VisibleForTesting
+import androidx.appcompat.app.AlertDialog
 import androidx.navigation.NavController
 import mozilla.components.browser.search.SearchEngine
 import mozilla.components.browser.session.Session
@@ -186,4 +192,50 @@ class SearchDialogController(
             handleExistingSessionSelected(session)
         }
     }
+
+    /**
+     * Creates and shows an [AlertDialog] when camera permissions are needed.
+     *
+     * In versions above M, [AlertDialog.BUTTON_POSITIVE] takes the user to the app settings. This
+     * intent only exists in M and above. Below M, [AlertDialog.BUTTON_POSITIVE] routes to a SUMO
+     * help page to find the app settings.
+     *
+     * [AlertDialog.BUTTON_NEGATIVE] dismisses the dialog.
+     */
+    override fun handleCameraPermissionsNeeded() {
+        val dialog = buildDialog()
+        dialog.show()
+    }
+
+    @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
+    fun buildDialog(): AlertDialog.Builder {
+        return AlertDialog.Builder(activity).apply {
+            val spannableText = SpannableString(
+                activity.resources.getString(R.string.camera_permissions_needed_message)
+            )
+            setMessage(spannableText)
+            setNegativeButton(R.string.camera_permissions_needed_negative_button_text) { _, _ ->
+                dismissDialog()
+            }
+            setPositiveButton(R.string.camera_permissions_needed_positive_button_text) {
+                    dialog: DialogInterface, _ ->
+                val intent: Intent = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                    Intent(android.provider.Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
+                } else {
+                    SupportUtils.createCustomTabIntent(
+                        activity,
+                        SupportUtils.getSumoURLForTopic(
+                            activity,
+                            SupportUtils.SumoTopic.QR_CAMERA_ACCESS
+                        )
+                    )
+                }
+                val uri = Uri.fromParts("package", activity.packageName, null)
+                intent.data = uri
+                dialog.cancel()
+                activity.startActivity(intent)
+            }
+            create()
+        }
+    }
 }

app/src/main/java/org/mozilla/fenix/searchdialog/SearchDialogFragment.kt

@@ -4,6 +4,7 @@
 
 package org.mozilla.fenix.searchdialog
 
+import android.Manifest
 import android.app.Activity
 import android.app.Dialog
 import android.content.Context
@@ -28,11 +29,8 @@ import androidx.core.content.ContextCompat
 import androidx.core.view.isVisible
 import androidx.navigation.fragment.findNavController
 import androidx.navigation.fragment.navArgs
+import androidx.preference.PreferenceManager
 import kotlinx.android.synthetic.main.fragment_search_dialog.*
-import kotlinx.android.synthetic.main.fragment_search_dialog.fill_link_from_clipboard
-import kotlinx.android.synthetic.main.fragment_search_dialog.pill_wrapper
-import kotlinx.android.synthetic.main.fragment_search_dialog.qr_scan_button
-import kotlinx.android.synthetic.main.fragment_search_dialog.toolbar
 import kotlinx.android.synthetic.main.fragment_search_dialog.view.*
 import kotlinx.android.synthetic.main.search_suggestions_hint.view.*
 import kotlinx.coroutines.ExperimentalCoroutinesApi
@@ -44,6 +42,7 @@ import mozilla.components.support.base.feature.UserInteractionHandler
 import mozilla.components.support.base.feature.ViewBoundFeatureWrapper
 import mozilla.components.support.ktx.android.content.getColorFromAttr
 import mozilla.components.support.ktx.android.content.hasCamera
+import mozilla.components.support.ktx.android.content.isPermissionGranted
 import mozilla.components.support.ktx.android.content.res.getSpanned
 import mozilla.components.support.ktx.android.view.hideKeyboard
 import mozilla.components.ui.autocomplete.InlineAutocompleteEditText
@@ -55,6 +54,7 @@ import org.mozilla.fenix.components.searchengine.CustomSearchEngineStore
 import org.mozilla.fenix.components.searchengine.FenixSearchEngineProvider
 import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.ext.components
+import org.mozilla.fenix.ext.getPreferenceKey
 import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.search.SearchFragmentAction
@@ -204,8 +204,22 @@ class SearchDialogFragment : AppCompatDialogFragment(), UserInteractionHandler {
             if (!requireContext().hasCamera()) { return@setOnClickListener }
 
             toolbarView.view.clearFocus()
-            requireComponents.analytics.metrics.track(Event.QRScannerOpened)
+
-            qrFeature.get()?.scan(R.id.search_wrapper)
+            val cameraPermissionsDenied =
+                PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
+                    getPreferenceKey(R.string.pref_key_camera_permissions),
+                    false
+                )
+
+            if (cameraPermissionsDenied) {
+                interactor.onCameraPermissionsNeeded()
+                resetFocus()
+                view.hideKeyboard()
+                toolbarView.view.requestFocus()
+            } else {
+                requireComponents.analytics.metrics.track(Event.QRScannerOpened)
+                qrFeature.get()?.scan(R.id.search_wrapper)
+            }
         }
 
         fill_link_from_clipboard.setOnClickListener {
@@ -280,6 +294,19 @@ class SearchDialogFragment : AppCompatDialogFragment(), UserInteractionHandler {
         }
     }
 
+    override fun onResume() {
+        super.onResume()
+        resetFocus()
+        toolbarView.view.edit.focus()
+    }
+
+    override fun onPause() {
+        super.onPause()
+        qr_scan_button.isChecked = false
+        view?.hideKeyboard()
+        toolbarView.view.requestFocus()
+    }
+
     override fun onActivityResult(requestCode: Int, resultCode: Int, intent: Intent?) {
         if (requestCode == VoiceSearchActivity.SPEECH_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
             intent?.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS)?.first()?.also {
@@ -293,9 +320,7 @@ class SearchDialogFragment : AppCompatDialogFragment(), UserInteractionHandler {
     override fun onBackPressed(): Boolean {
         return when {
             qrFeature.onBackPressed() -> {
-                toolbarView.view.edit.focus()
+                resetFocus()
-                view?.qr_scan_button?.isChecked = false
-                toolbarView.view.requestFocus()
                 true
             }
             else -> {
@@ -350,6 +375,39 @@ class SearchDialogFragment : AppCompatDialogFragment(), UserInteractionHandler {
             })
     }
 
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<String>,
+        grantResults: IntArray
+    ) {
+        when (requestCode) {
+            REQUEST_CODE_CAMERA_PERMISSIONS -> qrFeature.withFeature {
+                context?.let { context: Context ->
+                    it.onPermissionsResult(permissions, grantResults)
+                    if (!context.isPermissionGranted(Manifest.permission.CAMERA)) {
+                        PreferenceManager.getDefaultSharedPreferences(context)
+                            .edit().putBoolean(
+                                getPreferenceKey(R.string.pref_key_camera_permissions), true
+                            ).apply()
+                        resetFocus()
+                    } else {
+                        PreferenceManager.getDefaultSharedPreferences(context)
+                            .edit().putBoolean(
+                                getPreferenceKey(R.string.pref_key_camera_permissions), false
+                            ).apply()
+                    }
+                }
+            }
+            else -> super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+        }
+    }
+
+    private fun resetFocus() {
+        qr_scan_button.isChecked = false
+        toolbarView.view.edit.focus()
+        toolbarView.view.requestFocus()
+    }
+
     private fun setupConstraints(view: View) {
         if (view.context.settings().toolbarPosition == ToolbarPosition.BOTTOM) {
             ConstraintSet().apply {

app/src/main/java/org/mozilla/fenix/settings/PairFragment.kt

@@ -4,27 +4,35 @@
 
 package org.mozilla.fenix.settings
 
+import android.content.DialogInterface
+import android.content.Intent
 import android.content.pm.PackageManager
 import android.os.Build
 import android.os.Bundle
 import android.os.VibrationEffect
 import android.os.Vibrator
+import android.provider.Settings
+import android.text.SpannableString
 import android.view.View
+import androidx.appcompat.app.AlertDialog
 import androidx.core.content.ContextCompat
 import androidx.core.content.getSystemService
 import androidx.fragment.app.Fragment
 import androidx.navigation.fragment.NavHostFragment.findNavController
 import androidx.navigation.fragment.findNavController
+import androidx.preference.PreferenceManager
 import mozilla.components.feature.qr.QrFeature
 import mozilla.components.support.base.feature.UserInteractionHandler
 import mozilla.components.support.base.feature.ViewBoundFeatureWrapper
 import org.mozilla.fenix.R
+import org.mozilla.fenix.ext.getPreferenceKey
 import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.ext.showToolbar
 
 class PairFragment : Fragment(R.layout.fragment_pair), UserInteractionHandler {
 
     private val qrFeature = ViewBoundFeatureWrapper<QrFeature>()
+    private val preferences = PreferenceManager.getDefaultSharedPreferences(context)
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
@@ -63,8 +71,17 @@ class PairFragment : Fragment(R.layout.fragment_pair), UserInteractionHandler {
             view = view
         )
 
+        val cameraPermissionsDenied = preferences.getBoolean(
+            getPreferenceKey(R.string.pref_key_camera_permissions),
+            false
+        )
+
         qrFeature.withFeature {
-            it.scan(R.id.pair_layout)
+            if (cameraPermissionsDenied) {
+                showPermissionsNeededDialog()
+            } else {
+                it.scan(R.id.pair_layout)
+            }
         }
     }
 
@@ -99,10 +116,55 @@ class PairFragment : Fragment(R.layout.fragment_pair), UserInteractionHandler {
                     qrFeature.withFeature {
                         it.onPermissionsResult(permissions, grantResults)
                     }
+                    preferences.edit().putBoolean(
+                        getPreferenceKey(R.string.pref_key_camera_permissions), false
+                    ).apply()
                 } else {
+                    preferences.edit().putBoolean(
+                        getPreferenceKey(R.string.pref_key_camera_permissions), true
+                    ).apply()
                     findNavController().popBackStack(R.id.turnOnSyncFragment, false)
                 }
             }
         }
     }
+
+    /**
+     * Shows an [AlertDialog] when camera permissions are needed.
+     *
+     * In versions above M, [AlertDialog.BUTTON_POSITIVE] takes the user to the app settings. This
+     * intent only exists in M and above. Below M, [AlertDialog.BUTTON_POSITIVE] routes to a SUMO
+     * help page to find the app settings.
+     *
+     * [AlertDialog.BUTTON_NEGATIVE] dismisses the dialog.
+     */
+    private fun showPermissionsNeededDialog() {
+        AlertDialog.Builder(requireContext()).apply {
+            val spannableText = SpannableString(
+                resources.getString(R.string.camera_permissions_needed_message)
+            )
+            setMessage(spannableText)
+            setNegativeButton(R.string.camera_permissions_needed_negative_button_text) {
+                    dialog: DialogInterface, _ ->
+                dialog.cancel()
+            }
+            setPositiveButton(R.string.camera_permissions_needed_positive_button_text) {
+                    dialog: DialogInterface, _ ->
+                val intent: Intent = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                    Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
+                } else {
+                    SupportUtils.createCustomTabIntent(
+                        requireContext(),
+                        SupportUtils.getSumoURLForTopic(
+                            requireContext(),
+                            SupportUtils.SumoTopic.QR_CAMERA_ACCESS
+                        )
+                    )
+                }
+                dialog.cancel()
+                startActivity(intent)
+            }
+            create()
+        }.show()
+    }
 }

app/src/main/java/org/mozilla/fenix/settings/SupportUtils.kt

@@ -40,7 +40,8 @@ object SupportUtils {
         SEARCH_SUGGESTION("how-search-firefox-preview"),
         CUSTOM_SEARCH_ENGINES("custom-search-engines"),
         UPGRADE_FAQ("firefox-preview-upgrade-faqs"),
-        SYNC_SETUP("how-set-firefox-sync-firefox-preview")
+        SYNC_SETUP("how-set-firefox-sync-firefox-preview"),
+        QR_CAMERA_ACCESS("qr-camera-access")
     }
 
     enum class MozillaPage(internal val path: String) {

app/src/main/res/values/preference_keys.xml

@@ -222,4 +222,6 @@
     <string name="pref_key_close_tabs_after_one_day" translatable="false">pref_key_close_tabs_after_one_day</string>
     <string name="pref_key_close_tabs_after_one_week" translatable="false">pref_key_close_tabs_after_one_week</string>
     <string name="pref_key_close_tabs_after_one_month" translatable="false">pref_key_close_tabs_after_one_month</string>
+
+    <string name="pref_key_camera_permissions" translatable="false">pref_key_camera_permissions</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -1543,7 +1543,7 @@
     <!-- Content description for close button in collection placeholder. -->
     <string name="remove_home_collection_placeholder_content_description">Remove</string>
 
-    <!-- depcrecated: text for the firefox account onboarding card header
+    <!-- Deprecated: text for the firefox account onboarding card header
     The first parameter is the name of the app (e.g. Firefox Preview) -->
     <string name="onboarding_firefox_account_header">Get the most out of %s.</string>
 

app/src/test/java/org/mozilla/fenix/search/DefaultSearchControllerTest.kt

@@ -4,6 +4,7 @@
 
 package org.mozilla.fenix.search
 
+import androidx.appcompat.app.AlertDialog
 import androidx.navigation.NavController
 import androidx.navigation.NavDirections
 import io.mockk.MockKAnnotations
@@ -13,6 +14,7 @@ import io.mockk.impl.annotations.MockK
 import io.mockk.just
 import io.mockk.mockk
 import io.mockk.mockkObject
+import io.mockk.spyk
 import io.mockk.unmockkObject
 import io.mockk.verify
 import kotlinx.coroutines.ExperimentalCoroutinesApi
@@ -32,6 +34,8 @@ import org.mozilla.fenix.components.metrics.MetricsUtils
 import org.mozilla.fenix.settings.SupportUtils
 import org.mozilla.fenix.utils.Settings
 
+typealias AlertDialogBuilder = AlertDialog.Builder
+
 @ExperimentalCoroutinesApi
 class DefaultSearchControllerTest {
 
@@ -58,7 +62,6 @@ class DefaultSearchControllerTest {
             every { id } returns R.id.searchFragment
         }
         every { MetricsUtils.createSearchEvent(searchEngine, activity, any()) } returns null
-
         controller = DefaultSearchController(
             activity = activity,
             sessionManager = sessionManager,
@@ -328,4 +331,16 @@ class DefaultSearchControllerTest {
         verify { sessionManager.select(any()) }
         verify { activity.openToBrowser(from = BrowserDirection.FromSearch) }
     }
+
+    @Test
+    fun `show camera permissions needed dialog`() {
+        val dialogBuilder: AlertDialogBuilder = mockk(relaxed = true)
+
+        val spyController = spyk(controller)
+        every { spyController.buildDialog() } returns dialogBuilder
+
+        spyController.handleCameraPermissionsNeeded()
+
+        verify { dialogBuilder.show() }
+    }
 }

app/src/test/java/org/mozilla/fenix/searchdialog/SearchDialogControllerTest.kt

@@ -13,6 +13,7 @@ import io.mockk.impl.annotations.MockK
 import io.mockk.just
 import io.mockk.mockk
 import io.mockk.mockkObject
+import io.mockk.spyk
 import io.mockk.unmockkObject
 import io.mockk.verify
 import kotlinx.coroutines.ExperimentalCoroutinesApi
@@ -29,6 +30,7 @@ import org.mozilla.fenix.R
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.metrics.MetricController
 import org.mozilla.fenix.components.metrics.MetricsUtils
+import org.mozilla.fenix.search.AlertDialogBuilder
 import org.mozilla.fenix.search.SearchFragmentAction
 import org.mozilla.fenix.settings.SupportUtils
 import org.mozilla.fenix.utils.Settings
@@ -342,4 +344,16 @@ class SearchDialogControllerTest {
         verify { sessionManager.select(any()) }
         verify { activity.openToBrowser(from = BrowserDirection.FromSearchDialog) }
     }
+
+    @Test
+    fun `show camera permissions needed dialog`() {
+        val dialogBuilder: AlertDialogBuilder = mockk(relaxed = true)
+
+        val spyController = spyk(controller)
+        every { spyController.buildDialog() } returns dialogBuilder
+
+        spyController.handleCameraPermissionsNeeded()
+
+        verify { dialogBuilder.show() }
+    }
 }