CMFileManager: Fixes for non-rooted devices

Various fixes for non-rooted devices running under java console:

 * Improve navigation (caching unsused data on chrooted mode: aids, mountpoints, ...)
 * Editor: Don't ask user to gain privileges (non rooted devices never can gain privileged access)
 * Move common file operations to FileHelper
 * MoveCommand: As shell console, java console doesn't allow to move between filesystems. Use
   a copy-delete operation when renameTo is not allowed.
 * On non-rooted devices, not allow to change to other access mode.

Change-Id: I7ae8b4f4203fc8a20f498e43f45c0a956731b02e

1 files changed, 28 insertions, 5 deletions

diff --git a/src/com/cyanogenmod/filemanager/commands/java/MoveCommand.java b/src/com/cyanogenmod/filemanager/commands/java/MoveCommand.java
index f94e7f1..b0c85fb 100644
--- a/src/com/cyanogenmod/filemanager/commands/java/MoveCommand.java
+++ b/src/com/cyanogenmod/filemanager/commands/java/MoveCommand.java
@@ -23,6 +23,7 @@ import com.cyanogenmod.filemanager.console.ExecutionException;
 import com.cyanogenmod.filemanager.console.InsufficientPermissionsException;
 import com.cyanogenmod.filemanager.console.NoSuchFileOrDirectory;
 import com.cyanogenmod.filemanager.model.MountPoint;
+import com.cyanogenmod.filemanager.util.FileHelper;
 import com.cyanogenmod.filemanager.util.MountPointHelper;
 
 import java.io.File;
@@ -78,12 +79,34 @@ public class MoveCommand extends Program implements MoveExecutable {
             throw new NoSuchFileOrDirectory(this.mSrc);
         }
 
-        //Copy recursively
-        if (!s.renameTo(d)) {
-            if (isTrace()) {
-                Log.v(TAG, "Result: FAIL. InsufficientPermissionsException"); //$NON-NLS-1$
+        //Move or copy recursively
+        if (d.exists()) {
+            if (!FileHelper.copyRecursive(s, d, getBufferSize())) {
+                if (isTrace()) {
+                    Log.v(TAG, "Result: FAIL. InsufficientPermissionsException"); //$NON-NLS-1$
+                }
+                throw new InsufficientPermissionsException();
+            }
+            if (!FileHelper.deleteFolder(s)) {
+                if (isTrace()) {
+                    Log.v(TAG, "Result: OK. WARNING. Source not deleted."); //$NON-NLS-1$
+                }
+            }
+        } else {
+            // Move between filesystem is not allow. If rename fails then use copy operation
+            if (!s.renameTo(d)) {
+                if (!FileHelper.copyRecursive(s, d, getBufferSize())) {
+                    if (isTrace()) {
+                        Log.v(TAG, "Result: FAIL. InsufficientPermissionsException"); //$NON-NLS-1$
+                    }
+                    throw new InsufficientPermissionsException();
+                }
+                if (!FileHelper.deleteFolder(s)) {
+                    if (isTrace()) {
+                        Log.v(TAG, "Result: OK. WARNING. Source not deleted."); //$NON-NLS-1$
+                    }
+                }
             }
-            throw new InsufficientPermissionsException();
         }
 
         if (isTrace()) {