feat: ask permission for files on API <29

app/src/main/java/ani/dantotsu/Functions.kt

@@ -11,10 +11,12 @@ import android.content.ClipboardManager
 import android.content.Context
 import android.content.DialogInterface
 import android.content.Intent
+import android.content.pm.PackageManager
 import android.content.res.Configuration
 import android.content.res.Resources.getSystem
 import android.graphics.Bitmap
 import android.graphics.Color
+import android.Manifest
 import android.media.MediaScannerConnection
 import android.net.ConnectivityManager
 import android.net.NetworkCapabilities.*
@@ -30,8 +32,11 @@ import android.view.*
 import android.view.ViewGroup.LayoutParams.WRAP_CONTENT
 import android.view.animation.*
 import android.widget.*
+import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.app.AppCompatDelegate
+import androidx.core.app.ActivityCompat
 import androidx.core.app.NotificationCompat
+import androidx.core.content.ContextCompat
 import androidx.core.content.ContextCompat.getSystemService
 import androidx.core.content.FileProvider
 import androidx.core.math.MathUtils.clamp
@@ -580,7 +585,7 @@ fun openLinkInBrowser(link: String?) {
     }
 }
 
-fun saveImageToDownloads(title: String, bitmap: Bitmap, context: Context) {
+fun saveImageToDownloads(title: String, bitmap: Bitmap, context: Activity) {
     FileProvider.getUriForFile(
         context,
         "$APPLICATION_ID.provider",
@@ -595,7 +600,7 @@ fun saveImageToDownloads(title: String, bitmap: Bitmap, context: Context) {
 fun savePrefsToDownloads(
     title: String,
     serialized: String,
-    context: Context,
+    context: Activity,
     password: CharArray? = null
 ) {
     FileProvider.getUriForFile(
@@ -671,6 +676,26 @@ fun savePrefs(
     }
 }
 
+fun downloadsPermission(activity: AppCompatActivity): Boolean {
+    val permissions = arrayOf(
+        Manifest.permission.WRITE_EXTERNAL_STORAGE,
+        Manifest.permission.READ_EXTERNAL_STORAGE
+    )
+
+    val requiredPermissions = permissions.filter {
+        ContextCompat.checkSelfPermission(activity, it) != PackageManager.PERMISSION_GRANTED
+    }.toTypedArray()
+
+    return if (requiredPermissions.isNotEmpty()) {
+        ActivityCompat.requestPermissions(activity, requiredPermissions, DOWNLOADS_PERMISSION_REQUEST_CODE)
+        false
+    } else {
+        true
+    }
+}
+
+private const val DOWNLOADS_PERMISSION_REQUEST_CODE = 100
+
 fun shareImage(title: String, bitmap: Bitmap, context: Context) {
 
     val contentUri = FileProvider.getUriForFile(

app/src/main/java/ani/dantotsu/others/ImageViewDialog.kt

@@ -5,12 +5,14 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.appcompat.app.AppCompatActivity
 import androidx.fragment.app.FragmentActivity
 import androidx.lifecycle.lifecycleScope
 import ani.dantotsu.BottomSheetDialogFragment
 import ani.dantotsu.FileUrl
 import ani.dantotsu.R
 import ani.dantotsu.databinding.BottomSheetImageBinding
+import ani.dantotsu.downloadsPermission
 import ani.dantotsu.media.manga.mangareader.BaseImageAdapter.Companion.loadBitmap
 import ani.dantotsu.media.manga.mangareader.BaseImageAdapter.Companion.loadBitmap_old
 import ani.dantotsu.media.manga.mangareader.BaseImageAdapter.Companion.mergeBitmap
@@ -98,7 +100,8 @@ class ImageViewDialog : BottomSheetDialogFragment() {
                 binding.bottomImageShare.isEnabled = true
                 binding.bottomImageSave.isEnabled = true
                 binding.bottomImageSave.setOnClickListener {
-                    saveImageToDownloads(title, bitmap, requireActivity())
+                    if (downloadsPermission(context as AppCompatActivity))
+                        saveImageToDownloads(title, bitmap, requireActivity())
                 }
                 binding.bottomImageShare.setOnClickListener {
                     shareImage(title, bitmap, requireContext())

app/src/main/java/ani/dantotsu/settings/SettingsActivity.kt

@@ -39,6 +39,7 @@ import ani.dantotsu.databinding.ActivitySettingsBinding
 import ani.dantotsu.download.DownloadedType
 import ani.dantotsu.download.DownloadsManager
 import ani.dantotsu.download.video.ExoplayerDownloadService
+import ani.dantotsu.downloadsPermission
 import ani.dantotsu.initActivity
 import ani.dantotsu.loadImage
 import ani.dantotsu.logger
@@ -253,6 +254,7 @@ class SettingsActivity : AppCompatActivity(), SimpleDialog.OnDialogResultListene
         }
 
         binding.importExportSettings.setOnClickListener {
+            downloadsPermission(this)
             val selectedArray = mutableListOf(false)
             val filteredLocations = Location.entries.filter { it.exportable }
             selectedArray.addAll(List(filteredLocations.size - 1) { false })