Runtime notifications permission

WordPress/src/main/AndroidManifest.xml

@@ -19,6 +19,7 @@
     <uses-permission android:name="android.permission.GET_ACCOUNTS" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
 
     <!-- GCM all build types configuration -->
     <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />

WordPress/src/main/java/org/wordpress/android/ui/bloggingreminders/BloggingReminderBottomSheetFragment.kt

@@ -1,7 +1,9 @@
 package org.wordpress.android.ui.bloggingreminders
 
+import android.Manifest
 import android.content.Context
 import android.content.DialogInterface
+import android.os.Build
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -19,6 +21,8 @@ import org.wordpress.android.databinding.RecyclerViewPrimaryButtonBottomSheetBin
 import org.wordpress.android.ui.bloggingprompts.onboarding.BloggingPromptsOnboardingDialogFragment
 import org.wordpress.android.ui.bloggingprompts.onboarding.BloggingPromptsOnboardingDialogFragment.DialogType.INFORMATION
 import org.wordpress.android.ui.utils.UiHelpers
+import org.wordpress.android.util.PermissionUtils
+import org.wordpress.android.util.WPPermissionUtils
 import org.wordpress.android.util.extensions.disableAnimation
 import org.wordpress.android.viewmodel.observeEvent
 import javax.inject.Inject
@@ -61,8 +65,10 @@ class BloggingReminderBottomSheetFragment : BottomSheetDialogFragment() {
                     }
                 }
             })
-            viewModel =
-                ViewModelProvider(requireActivity(), viewModelFactory).get(BloggingRemindersViewModel::class.java)
+            viewModel = ViewModelProvider(requireActivity(), viewModelFactory)[BloggingRemindersViewModel::class.java]
+
+            setPermissionState()
+
             viewModel.uiState.observe(this@BloggingReminderBottomSheetFragment) { uiState ->
                 (contentRecyclerView.adapter as? BloggingRemindersAdapter)?.submitList(uiState?.uiItems ?: listOf())
                 if (uiState?.primaryButton != null) {
@@ -86,11 +92,10 @@ class BloggingReminderBottomSheetFragment : BottomSheetDialogFragment() {
             BloggingReminderUtils.observeTimePicker(
                 viewModel.isTimePickerShowing,
                 viewLifecycleOwner,
-                BloggingReminderTimePicker.TAG,
-                {
-                    requireActivity().supportFragmentManager
-                }
-            )
+                BloggingReminderTimePicker.TAG
+            ) {
+                requireActivity().supportFragmentManager
+            }
 
             savedInstanceState?.let { viewModel.restoreState(it) }
 
@@ -101,6 +106,55 @@ class BloggingReminderBottomSheetFragment : BottomSheetDialogFragment() {
         }
     }
 
+    override fun onResume() {
+        super.onResume()
+        val hasPermission = PermissionUtils.checkNotificationsPermission(activity)
+        if (hasPermission) {
+            viewModel.onPermissionGranted()
+        }
+    }
+
+    @Suppress("OVERRIDE_DEPRECATION")
+    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) {
+        val granted = WPPermissionUtils.setPermissionListAsked(
+            requireActivity(),
+            requestCode,
+            permissions,
+            grantResults,
+            false
+        )
+        if (granted) {
+            viewModel.onPermissionGranted()
+        } else {
+            viewModel.onPermissionDenied()
+        }
+    }
+
+    private fun setPermissionState() {
+        val isAlwaysDenied = Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU &&
+                WPPermissionUtils.isPermissionAlwaysDenied(
+                    requireActivity(),
+                    Manifest.permission.POST_NOTIFICATIONS
+                )
+        viewModel.setPermissionState(PermissionUtils.checkNotificationsPermission(activity), isAlwaysDenied)
+
+        @Suppress("DEPRECATION")
+        viewModel.requestPermission.observeEvent(this@BloggingReminderBottomSheetFragment) { request: Boolean ->
+            if (request && Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                requestPermissions(
+                    arrayOf(Manifest.permission.POST_NOTIFICATIONS),
+                    WPPermissionUtils.NOTIFICATIONS_PERMISSION_REQUEST_CODE
+                )
+            }
+        }
+        viewModel.showDevicePermissionSettings
+            .observeEvent(this@BloggingReminderBottomSheetFragment) { show: Boolean ->
+                if (show) {
+                    WPPermissionUtils.showNotificationsSettings(requireActivity())
+                }
+            }
+    }
+
     override fun onSaveInstanceState(outState: Bundle) {
         super.onSaveInstanceState(outState)
         viewModel.saveState(outState)

WordPress/src/main/java/org/wordpress/android/ui/bloggingreminders/BloggingRemindersViewModel.kt

@@ -8,6 +8,7 @@ import androidx.lifecycle.distinctUntilChanged
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.map
+import org.wordpress.android.R
 import org.wordpress.android.fluxc.store.BloggingRemindersStore
 import org.wordpress.android.fluxc.store.SiteStore
 import org.wordpress.android.modules.UI_THREAD
@@ -22,6 +23,7 @@ import org.wordpress.android.util.extensions.getSerializableCompat
 import org.wordpress.android.util.merge
 import org.wordpress.android.util.perform
 import org.wordpress.android.viewmodel.Event
+import org.wordpress.android.viewmodel.ResourceProvider
 import org.wordpress.android.viewmodel.ScopedViewModel
 import org.wordpress.android.workers.reminder.ReminderScheduler
 import java.time.DayOfWeek
@@ -35,11 +37,13 @@ class BloggingRemindersViewModel @Inject constructor(
     private val prologueBuilder: PrologueBuilder,
     private val daySelectionBuilder: DaySelectionBuilder,
     private val epilogueBuilder: EpilogueBuilder,
+    private val notificationsPermissionBuilder: NotificationsPermissionBuilder,
     private val dayLabelUtils: DayLabelUtils,
     private val analyticsTracker: BloggingRemindersAnalyticsTracker,
     private val reminderScheduler: ReminderScheduler,
     private val mapper: BloggingRemindersModelMapper,
-    private val siteStore: SiteStore
+    private val siteStore: SiteStore,
+    private val resourceProvider: ResourceProvider
 ) : ScopedViewModel(mainDispatcher) {
     private val _isBottomSheetShowing = MutableLiveData<Event<Boolean>>()
     val isBottomSheetShowing = _isBottomSheetShowing as LiveData<Event<Boolean>>
@@ -50,11 +54,19 @@ class BloggingRemindersViewModel @Inject constructor(
     private val _showBloggingPromptHelpDialogVisible = MutableLiveData<Event<Boolean>>()
     val showBloggingPromptHelpDialogVisible = _showBloggingPromptHelpDialogVisible as LiveData<Event<Boolean>>
 
+    private val _requestPermission = MutableLiveData<Event<Boolean>>()
+    val requestPermission = _requestPermission as LiveData<Event<Boolean>>
+
+    private val _showDevicePermissionSettings = MutableLiveData<Event<Boolean>>()
+    val showDevicePermissionSettings = _showDevicePermissionSettings as LiveData<Event<Boolean>>
+
     private val _selectedScreen = MutableLiveData<Screen>()
     private val selectedScreen = _selectedScreen.perform { onScreenChanged(it) }
 
     private val _bloggingRemindersModel = MutableLiveData<BloggingRemindersUiModel>()
     private val _isFirstTimeFlow = MutableLiveData<Boolean>()
+    private val _hasNotificationsPermission = MutableLiveData<Boolean>()
+    private val _notificationsPermissionAlwaysDenied = MutableLiveData<Boolean>()
 
     val uiState: LiveData<UiState> = merge(
         selectedScreen,
@@ -72,6 +84,9 @@ class BloggingRemindersViewModel @Inject constructor(
                     this::togglePromptSwitch,
                     this::showBloggingPromptDialog
                 )
+                Screen.NOTIFICATIONS_PERMISSION -> {
+                    notificationsPermissionBuilder.buildUiItems(resourceProvider.getString(R.string.app_name))
+                }
                 Screen.EPILOGUE -> epilogueBuilder.buildUiItems(bloggingRemindersModel)
             }
             val primaryButton = when (screen) {
@@ -84,6 +99,7 @@ class BloggingRemindersViewModel @Inject constructor(
                     isFirstTimeFlow == true,
                     this::onSelectionButtonClick
                 )
+                Screen.NOTIFICATIONS_PERMISSION -> notificationsPermissionBuilder.buildPrimaryButton(showAppSettings)
                 Screen.EPILOGUE -> epilogueBuilder.buildPrimaryButton(finish)
             }
             UiState(uiItems, primaryButton)
@@ -103,6 +119,10 @@ class BloggingRemindersViewModel @Inject constructor(
         _isBottomSheetShowing.value = Event(false)
     }
 
+    private val showAppSettings: () -> Unit = {
+        _showDevicePermissionSettings.value = Event(true)
+    }
+
     private fun onScreenChanged(screen: Screen) {
         analyticsTracker.trackScreenShown(screen)
     }
@@ -146,6 +166,11 @@ class BloggingRemindersViewModel @Inject constructor(
         _bloggingRemindersModel.value = currentState.copy(enabledDays = enabledDays)
     }
 
+    fun setPermissionState(hasNotificationsPermission: Boolean, notificationsPermissionAlwaysDenied: Boolean) {
+        _hasNotificationsPermission.value = hasNotificationsPermission
+        _notificationsPermissionAlwaysDenied.value = notificationsPermissionAlwaysDenied
+    }
+
     fun selectTime() {
         _isTimePickerShowing.value = Event(true)
     }
@@ -185,6 +210,10 @@ class BloggingRemindersViewModel @Inject constructor(
                 )
                 val daysCount = bloggingRemindersModel.enabledDays.size
                 if (daysCount > 0) {
+                    if (!checkPermission()) {
+                        // There is no permission
+                        return@launch
+                    }
                     reminderScheduler.schedule(
                         bloggingRemindersModel.siteId,
                         bloggingRemindersModel.hour,
@@ -203,6 +232,22 @@ class BloggingRemindersViewModel @Inject constructor(
         }
     }
 
+    private fun checkPermission(): Boolean {
+        val hasPermission = _hasNotificationsPermission.value == true
+        val alwaysDenied = _notificationsPermissionAlwaysDenied.value == true
+        return when {
+            !hasPermission && alwaysDenied -> {
+                _selectedScreen.value = Screen.NOTIFICATIONS_PERMISSION
+                false
+            }
+            !hasPermission -> {
+                _requestPermission.value = Event(true)
+                false
+            }
+            else -> true // Already has permission
+        }
+    }
+
     fun saveState(outState: Bundle) {
         _selectedScreen.value?.let {
             outState.putSerializable(SELECTED_SCREEN, it)
@@ -274,16 +319,34 @@ class BloggingRemindersViewModel @Inject constructor(
         when (val screen = selectedScreen.value) {
             Screen.PROLOGUE,
             Screen.PROLOGUE_SETTINGS,
+            Screen.NOTIFICATIONS_PERMISSION,
             Screen.SELECTION -> analyticsTracker.trackFlowDismissed(screen)
             Screen.EPILOGUE -> analyticsTracker.trackFlowCompleted()
             null -> Unit // Do nothing
         }
     }
 
+    fun onPermissionGranted() {
+        if (_hasNotificationsPermission.value == false) {
+            // Permission state is changed.
+            _hasNotificationsPermission.value = true
+            _notificationsPermissionAlwaysDenied.value = false
+            if (_selectedScreen.value == Screen.NOTIFICATIONS_PERMISSION) {
+                onSelectionButtonClick(_bloggingRemindersModel.value)
+            }
+        }
+    }
+
+    fun onPermissionDenied() {
+        _hasNotificationsPermission.value = false
+        _selectedScreen.value = Screen.NOTIFICATIONS_PERMISSION
+    }
+
     enum class Screen(val trackingName: String) {
         PROLOGUE("main"), // displayed after post is published
         PROLOGUE_SETTINGS("main"), // displayed from Site Settings before showing cadence selector
         SELECTION("day_picker"), // cadence selector
+        NOTIFICATIONS_PERMISSION("notifications_permission"),
         EPILOGUE("all_set")
     }
 

WordPress/src/main/java/org/wordpress/android/ui/bloggingreminders/NotificationsPermissionBuilder.kt

@@ -0,0 +1,40 @@
+package org.wordpress.android.ui.bloggingreminders
+
+import org.wordpress.android.R.drawable
+import org.wordpress.android.R.string
+import org.wordpress.android.ui.bloggingreminders.BloggingRemindersItem.Caption
+import org.wordpress.android.ui.bloggingreminders.BloggingRemindersItem.EmphasizedText
+import org.wordpress.android.ui.bloggingreminders.BloggingRemindersItem.HighEmphasisText
+import org.wordpress.android.ui.bloggingreminders.BloggingRemindersItem.Illustration
+import org.wordpress.android.ui.bloggingreminders.BloggingRemindersItem.Title
+import org.wordpress.android.ui.bloggingreminders.BloggingRemindersViewModel.UiState.PrimaryButton
+import org.wordpress.android.ui.utils.ListItemInteraction
+import org.wordpress.android.ui.utils.UiString
+import org.wordpress.android.ui.utils.UiString.UiStringRes
+import javax.inject.Inject
+
+class NotificationsPermissionBuilder @Inject constructor() {
+    fun buildUiItems(appName: String): List<BloggingRemindersItem> {
+        val title = UiStringRes(string.blogging_reminders_notifications_permission_title)
+
+        val body = UiString.UiStringResWithParams(
+            string.blogging_reminders_notifications_permission_description,
+            UiString.UiStringText(appName)
+        )
+
+        return listOf(
+            Illustration(drawable.img_illustration_bell_yellow_96dp),
+            Title(title),
+            Caption(UiStringRes(string.blogging_reminders_notifications_permission_caption)),
+            HighEmphasisText(EmphasizedText(body, false))
+        )
+    }
+
+    fun buildPrimaryButton(onDone: () -> Unit): PrimaryButton {
+        return PrimaryButton(
+            UiStringRes(string.blogging_reminders_notifications_permission_primary_button),
+            enabled = true,
+            ListItemInteraction.create(onDone)
+        )
+    }
+}