allow renaming dirs

app/src/main/kotlin/com/simplemobiletools/gallery/activities/MainActivity.kt

@@ -22,13 +22,12 @@ import com.simplemobiletools.gallery.Utils
 import com.simplemobiletools.gallery.adapters.DirectoryAdapter
 import com.simplemobiletools.gallery.asynctasks.GetDirectoriesAsynctask
 import com.simplemobiletools.gallery.dialogs.ChangeSortingDialog
-import com.simplemobiletools.gallery.dialogs.RenameDirectoryDialog
 import com.simplemobiletools.gallery.models.Directory
 import kotlinx.android.synthetic.main.activity_main.*
 import java.io.File
 import java.util.*
 
-class MainActivity : SimpleActivity(), SwipeRefreshLayout.OnRefreshListener, GetDirectoriesAsynctask.GetDirectoriesListener {
+class MainActivity : SimpleActivity(), SwipeRefreshLayout.OnRefreshListener, GetDirectoriesAsynctask.GetDirectoriesListener, DirectoryAdapter.DirOperationsListener {
     companion object {
         private val STORAGE_PERMISSION = 1
         private val PICK_MEDIA = 2
@@ -208,7 +207,7 @@ class MainActivity : SimpleActivity(), SwipeRefreshLayout.OnRefreshListener, Get
                     }
                 }
                 updatedFiles.add(dir)
-                if (dir.listFiles().size == 0)
+                if (dir.listFiles().isEmpty())
                     deleteItem(dir)
             }
         }
@@ -252,32 +251,8 @@ class MainActivity : SimpleActivity(), SwipeRefreshLayout.OnRefreshListener, Get
         }*/
     }
 
-    private fun editDirectory() {
+    override fun refreshItems() {
-        /*val items = directories_grid.checkedItemPositions
+        getDirectories()
-        val cnt = items.size()
-        for (i in 0..cnt - 1) {
-            if (items.valueAt(i)) {
-                val id = items.keyAt(i)
-                val path = mDirs[id].path
-                renameDir(path)
-                break
-            }
-        }*/
-    }
-
-    private fun renameDir(path: String) {
-        val dir = File(path)
-        if (isAStorageRootFolder(path)) {
-            toast(R.string.rename_folder_root)
-            return
-        }
-
-        RenameDirectoryDialog(this, dir, object : RenameDirectoryDialog.OnRenameDirListener {
-            override fun onRenameDirSuccess(changedPaths: ArrayList<String>) {
-                mActionMode!!.finish()
-                applicationContext.scanPaths(changedPaths) { scanCompleted(path) }
-            }
-        })
     }
 
     private fun displayCopyDialog() {
@@ -490,15 +465,6 @@ class MainActivity : SimpleActivity(), SwipeRefreshLayout.OnRefreshListener, Get
             return selectedPaths*/
         }
 
-    private fun scanCompleted(path: String) {
-        val dir = File(path)
-        if (dir.isDirectory) {
-            getDirectories()
-
-            runOnUiThread { toast(R.string.rename_folder_ok) }
-        }
-    }
-
     override fun onRefresh() {
         getDirectories()
         directories_holder.isRefreshing = false
@@ -511,7 +477,7 @@ class MainActivity : SimpleActivity(), SwipeRefreshLayout.OnRefreshListener, Get
         }
         mDirs = dirs
 
-        val adapter = DirectoryAdapter(this, mDirs) {
+        val adapter = DirectoryAdapter(this, mDirs, this) {
             itemClicked(it.path)
         }
         directories_grid.adapter = adapter

app/src/main/kotlin/com/simplemobiletools/gallery/adapters/DirectoryAdapter.kt

@@ -10,14 +10,19 @@ import com.bignerdranch.android.multiselector.SwappingHolder
 import com.bumptech.glide.Glide
 import com.bumptech.glide.load.engine.DiskCacheStrategy
 import com.bumptech.glide.signature.StringSignature
+import com.simplemobiletools.filepicker.extensions.isAStorageRootFolder
+import com.simplemobiletools.filepicker.extensions.scanPaths
+import com.simplemobiletools.filepicker.extensions.toast
 import com.simplemobiletools.gallery.R
 import com.simplemobiletools.gallery.activities.SimpleActivity
+import com.simplemobiletools.gallery.dialogs.RenameDirectoryDialog
 import com.simplemobiletools.gallery.models.Directory
 import kotlinx.android.synthetic.main.directory_item.view.*
 import kotlinx.android.synthetic.main.directory_tmb.view.*
+import java.io.File
 import java.util.*
 
-class DirectoryAdapter(val activity: SimpleActivity, val dirs: MutableList<Directory>, val itemClick: (Directory) -> Unit) :
+class DirectoryAdapter(val activity: SimpleActivity, val dirs: MutableList<Directory>, val listener: DirOperationsListener?, val itemClick: (Directory) -> Unit) :
         RecyclerView.Adapter<DirectoryAdapter.ViewHolder>() {
 
     val multiSelector = MultiSelector()
@@ -38,6 +43,7 @@ class DirectoryAdapter(val activity: SimpleActivity, val dirs: MutableList<Direc
         override fun onActionItemClicked(mode: ActionMode?, item: MenuItem): Boolean {
             return when (item.itemId) {
                 R.id.cab_edit -> {
+                    editDirectory()
                     true
                 }
                 else -> false
@@ -63,6 +69,27 @@ class DirectoryAdapter(val activity: SimpleActivity, val dirs: MutableList<Direc
         }
     }
 
+    private fun editDirectory() {
+        val path = dirs[multiSelector.selectedPositions[0]].path
+        val dir = File(path)
+        if (activity.isAStorageRootFolder(dir.absolutePath)) {
+            activity.toast(R.string.rename_folder_root)
+            return
+        }
+
+        RenameDirectoryDialog(activity, dir, object : RenameDirectoryDialog.OnRenameDirListener {
+            override fun onRenameDirSuccess(changedPaths: ArrayList<String>) {
+                activity.scanPaths(changedPaths) {
+                    activity.runOnUiThread {
+                        actMode?.finish()
+                        listener?.refreshItems()
+                        activity.toast(R.string.rename_folder_ok)
+                    }
+                }
+            }
+        })
+    }
+
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         views.add(holder.bindView(activity, multiSelectorMode, multiSelector, dirs[position]))
     }
@@ -120,4 +147,8 @@ class DirectoryAdapter(val activity: SimpleActivity, val dirs: MutableList<Direc
             }
         }
     }
+
+    interface DirOperationsListener {
+        fun refreshItems()
+    }
 }

app/src/main/kotlin/com/simplemobiletools/gallery/dialogs/PickAlbumDialog.kt

@@ -29,7 +29,7 @@ class PickAlbumDialog(val activity: SimpleActivity, val listener: OnPickAlbumLis
     }
 
     override fun gotDirectories(dirs: ArrayList<Directory>) {
-        DirectoryAdapter(activity, dirs) {
+        DirectoryAdapter(activity, dirs, null) {
             listener.onSuccess(it.path)
             dialog.dismiss()
         }