implement folder un/hiding

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

@@ -351,75 +351,17 @@ class MainActivity : SimpleActivity(), SwipeRefreshLayout.OnRefreshListener, Get
         }
     }
 
-    /*override fun onItemCheckedStateChanged(mode: ActionMode, position: Int, id: Long, checked: Boolean) {
+    /*override fun onActionItemClicked(mode: ActionMode, item: MenuItem): Boolean {
-        if (checked) {
-            mSelectedItemsCnt++
-        } else {
-            mSelectedItemsCnt--
-        }
-
-        if (mSelectedItemsCnt > 0) {
-            mode.title = mSelectedItemsCnt.toString()
-        }
-
-        mode.invalidate()
-    }
-
-    override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
-        val inflater = mode.menuInflater
-        inflater.inflate(R.menu.cab_directories, menu)
-        mActionMode = mode
-        return true
-    }
-
-    override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean {
-        menu.findItem(R.id.cab_edit).isVisible = mSelectedItemsCnt == 1
-
-        var hiddenCnt = 0
-        var unhiddenCnt = 0
-        val items = directories_grid.checkedItemPositions
-        val cnt = items.size()
-        for (i in 0..cnt - 1) {
-            if (items.valueAt(i)) {
-                val id = items.keyAt(i)
-                if (mConfig.getIsFolderHidden(mDirs[id].path))
-                    hiddenCnt++
-                else
-                    unhiddenCnt++
-            }
-        }
-
-        menu.findItem(R.id.cab_hide).isVisible = unhiddenCnt > 0
-        menu.findItem(R.id.cab_unhide).isVisible = hiddenCnt > 0
-
-        return true
-    }
-
-    override fun onActionItemClicked(mode: ActionMode, item: MenuItem): Boolean {
         return when (item.itemId) {
             R.id.cab_properties -> {
                 showProperties()
                 true
             }
-            R.id.cab_edit -> {
-                editDirectory()
-                true
-            }
             R.id.cab_delete -> {
                 prepareForDeleting()
                 mode.finish()
                 true
             }
-            R.id.cab_hide -> {
-                hideFolders()
-                mode.finish()
-                true
-            }
-            R.id.cab_unhide -> {
-                unhideFolders()
-                mode.finish()
-                true
-            }
             R.id.cab_copy_move -> {
                 displayCopyDialog()
                 true
@@ -428,10 +370,6 @@ class MainActivity : SimpleActivity(), SwipeRefreshLayout.OnRefreshListener, Get
         }
     }
 
-    override fun onDestroyActionMode(mode: ActionMode) {
-        mSelectedItemsCnt = 0
-    }
-
     override fun onTouch(v: View, event: MotionEvent): Boolean {
         if (mIsSnackbarShown) {
             deleteDirs()
@@ -440,31 +378,6 @@ class MainActivity : SimpleActivity(), SwipeRefreshLayout.OnRefreshListener, Get
         return false
     }*/
 
-    private fun hideFolders() {
-        mConfig.addHiddenDirectories(selectedPaths)
-        getDirectories()
-    }
-
-    private fun unhideFolders() {
-        mConfig.removeHiddenDirectories(selectedPaths)
-        getDirectories()
-    }
-
-    private val selectedPaths: Set<String>
-        get() {
-            return HashSet<String>()
-            /*val items = directories_grid.checkedItemPositions
-            val selectedPaths = HashSet<String>()
-            val cnt = items.size()
-            for (i in 0..cnt - 1) {
-                if (items.valueAt(i)) {
-                    val id = items.keyAt(i)
-                    selectedPaths.add(mDirs[id].path)
-                }
-            }
-            return selectedPaths*/
-        }
-
     override fun onRefresh() {
         getDirectories()
         directories_holder.isRefreshing = false

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

@@ -45,7 +45,15 @@ 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()
+                    editDir()
+                    true
+                }
+                R.id.cab_hide -> {
+                    hideDirs()
+                    true
+                }
+                R.id.cab_unhide -> {
+                    unhideDir()
                     true
                 }
                 else -> false
@@ -85,7 +93,7 @@ class DirectoryAdapter(val activity: SimpleActivity, val dirs: MutableList<Direc
         }
     }
 
-    private fun editDirectory() {
+    private fun editDir() {
         val path = dirs[multiSelector.selectedPositions[0]].path
         val dir = File(path)
         if (activity.isAStorageRootFolder(dir.absolutePath)) {
@@ -106,6 +114,25 @@ class DirectoryAdapter(val activity: SimpleActivity, val dirs: MutableList<Direc
         })
     }
 
+    private fun hideDirs() {
+        config.addHiddenDirectories(getSelectedPaths())
+        listener?.refreshItems()
+        actMode?.finish()
+    }
+
+    private fun unhideDir() {
+        config.removeHiddenDirectories(getSelectedPaths())
+        listener?.refreshItems()
+        actMode?.finish()
+    }
+
+    private fun getSelectedPaths(): HashSet<String> {
+        val positions = multiSelector.selectedPositions
+        val paths = HashSet<String>()
+        positions.forEach { paths.add(dirs[it].path) }
+        return paths
+    }
+
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         views.add(holder.bindView(activity, multiSelectorMode, multiSelector, dirs[position]))
     }