External open choice in Open as dialog

app/build.gradle

@@ -14,8 +14,8 @@ android {
         applicationId "sushi.hardcore.droidfs"
         minSdkVersion 21
         targetSdkVersion 29
-        versionCode 1
-        versionName "1.1.6"
+        versionCode 2
+        versionName "1.1.7"
 
         ndk {
             abiFilters 'x86_64', 'armeabi-v7a', 'arm64-v8a'

app/src/main/java/sushi/hardcore/droidfs/adapters/OpenAsDialogAdapter.kt

@@ -1,24 +1,19 @@
 package sushi.hardcore.droidfs.adapters
 
 import android.content.Context
-import android.view.View
-import android.view.ViewGroup
-import android.widget.LinearLayout
-import android.widget.TextView
-import androidx.appcompat.widget.LinearLayoutCompat
-import androidx.core.view.marginEnd
-import androidx.core.view.setPadding
 import sushi.hardcore.droidfs.R
-import sushi.hardcore.droidfs.widgets.ColoredImageView
 
-class OpenAsDialogAdapter(context: Context) : IconTextDialogAdapter(context) {
-    private val openAsItems = listOf(
+class OpenAsDialogAdapter(context: Context, showOpenWithExternalApp: Boolean) : IconTextDialogAdapter(context) {
+    private val openAsItems = mutableListOf(
         listOf("image", R.string.image, R.drawable.icon_file_image),
         listOf("video", R.string.video, R.drawable.icon_file_video),
         listOf("audio", R.string.audio, R.drawable.icon_file_audio),
         listOf("text", R.string.text, R.drawable.icon_file_text)
     )
     init {
+        if (showOpenWithExternalApp){
+            openAsItems.add(listOf("external", R.string.external_open, R.drawable.icon_open_in_new))
+        }
         items = openAsItems
     }
 }

app/src/main/java/sushi/hardcore/droidfs/explorers/BaseExplorerActivity.kt

@@ -102,6 +102,11 @@ open class BaseExplorerActivity : BaseActivity() {
         startActivity(intent)
     }
 
+    private fun openWithExternalApp(fullPath: String){
+        isStartingActivity = true
+        ExternalProvider.open(this, gocryptfsVolume, fullPath)
+    }
+
     protected open fun onExplorerItemClick(position: Int) {
         val wasSelecting = explorerAdapter.selectedItems.isNotEmpty()
         explorerAdapter.onItemClick(position)
@@ -128,7 +133,7 @@ open class BaseExplorerActivity : BaseActivity() {
                         startFileViewer(AudioPlayer::class.java, fullPath)
                     }
                     else -> {
-                        val adapter = OpenAsDialogAdapter(this)
+                        val adapter = OpenAsDialogAdapter(this, usf_open)
                         ColoredAlertDialogBuilder(this)
                             .setSingleChoiceItems(adapter, -1){ dialog, which ->
                                 when (adapter.getItem(which)){
@@ -136,6 +141,9 @@ open class BaseExplorerActivity : BaseActivity() {
                                     "video" -> startFileViewer(VideoPlayer::class.java, fullPath)
                                     "audio" -> startFileViewer(AudioPlayer::class.java, fullPath)
                                     "text" -> startFileViewer(TextEditor::class.java, fullPath)
+                                    "external" -> if (usf_open){
+                                        openWithExternalApp(fullPath)
+                                    }
                                 }
                                 dialog.dismiss()
                             }
@@ -390,8 +398,7 @@ open class BaseExplorerActivity : BaseActivity() {
             }
             R.id.external_open -> {
                 if (usf_open){
-                    isStartingActivity = true
-                    ExternalProvider.open(this, gocryptfsVolume, PathUtils.path_join(currentDirectoryPath, explorerElements[explorerAdapter.selectedItems[0]].name))
+                    openWithExternalApp(PathUtils.path_join(currentDirectoryPath, explorerElements[explorerAdapter.selectedItems[0]].name))
                     unselectAll()
                 }
                 true

app/src/main/java/sushi/hardcore/droidfs/explorers/ExplorerActivity.kt

@@ -679,7 +679,7 @@ class ExplorerActivity : BaseExplorerActivity() {
     }
 
     private fun recursiveExportDirectory(plain_directory_path: String, treeDocumentFile: DocumentFile): String? {
-        treeDocumentFile.createDirectory(plain_directory_path)?.let {childTree ->
+        treeDocumentFile.createDirectory(File(plain_directory_path).name)?.let {childTree ->
             val explorerElements = gocryptfsVolume.listDir(plain_directory_path)
             for (e in explorerElements) {
                 val fullPath = PathUtils.path_join(plain_directory_path, e.name)

app/src/main/java/sushi/hardcore/droidfs/util/ExternalProvider.kt

@@ -3,20 +3,19 @@ package sushi.hardcore.droidfs.util
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
+import android.webkit.MimeTypeMap
 import androidx.appcompat.app.AppCompatActivity
 import sushi.hardcore.droidfs.R
 import sushi.hardcore.droidfs.provider.RestrictedFileProvider
 import sushi.hardcore.droidfs.widgets.ColoredAlertDialogBuilder
 import java.io.File
-import java.net.URLConnection
-import kotlin.collections.ArrayList
 
 object ExternalProvider {
     private const val content_type_all = "*/*"
     private var storedFiles: MutableList<Uri> = ArrayList()
     private fun getContentType(filename: String, previous_content_type: String?): String? {
         if (content_type_all != previous_content_type) {
-            var contentType = URLConnection.guessContentTypeFromName(filename)
+            var contentType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(File(filename).extension)
             if (contentType == null) {
                 contentType = content_type_all
             }