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, 2 insertions, 83 deletions

diff --git a/src/com/cyanogenmod/filemanager/commands/java/CopyCommand.java b/src/com/cyanogenmod/filemanager/commands/java/CopyCommand.java
index 3e1e316..0c7832c 100644
--- a/src/com/cyanogenmod/filemanager/commands/java/CopyCommand.java
+++ b/src/com/cyanogenmod/filemanager/commands/java/CopyCommand.java
@@ -23,13 +23,10 @@ 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.BufferedInputStream;
-import java.io.BufferedOutputStream;
 import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
 
 
 /**
@@ -84,7 +81,7 @@ public class CopyCommand extends Program implements CopyExecutable {
         }
 
         //Copy recursively
-        if (!copyRecursive(s, d)) {
+        if (!FileHelper.copyRecursive(s, d, getBufferSize())) {
             if (isTrace()) {
                 Log.v(TAG, "Result: FAIL. InsufficientPermissionsException"); //$NON-NLS-1$
             }
@@ -111,82 +108,4 @@ public class CopyCommand extends Program implements CopyExecutable {
     public MountPoint getDstWritableMountPoint() {
         return MountPointHelper.getMountPointFromDirectory(this.mDst);
     }
-
-    /**
-     * Method that copies recursively to the destination
-     *
-     * @param src The source file or folder
-     * @param dst The destination file or folder
-     * @return boolean If the operation complete successfully
-     * @throws ExecutionException If a problem was detected in the operation
-     */
-    public boolean copyRecursive(final File src, final File dst) throws ExecutionException {
-        if (src.isDirectory()) {
-            // Create the directory
-            if (dst.exists() && !dst.isDirectory()) {
-                Log.e(TAG,
-                        String.format("Failed to check destionation dir: %s", dst)); //$NON-NLS-1$
-                throw new ExecutionException("the path exists but is not a folder"); //$NON-NLS-1$
-            }
-            if (!dst.exists()) {
-                if (!dst.mkdir()) {
-                    Log.e(TAG, String.format("Failed to create directory: %s", dst)); //$NON-NLS-1$
-                    return false;
-                }
-            }
-            File[] files = src.listFiles();
-            if (files != null) {
-                for (int i = 0; i < files.length; i++) {
-                    if (!copyRecursive(files[i], new File(dst, files[i].getName()))) {
-                        return false;
-                    }
-                }
-            }
-        } else {
-            // Copy the directory
-            if (!bufferedCopy(src, dst)) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    /**
-     * Method that copies a file
-     *
-     * @param src The source file
-     * @param dst The destination file
-     * @return boolean If the operation complete successfully
-     */
-    public boolean bufferedCopy(final File src, final File dst) {
-        BufferedInputStream bis = null;
-        BufferedOutputStream bos = null;
-        try {
-            bis = new BufferedInputStream(new FileInputStream(src), getBufferSize());
-            bos = new BufferedOutputStream(new FileOutputStream(dst), getBufferSize());
-            int read = 0;
-            byte[] data = new byte[getBufferSize()];
-            while ((read = bis.read(data, 0, getBufferSize())) != -1) {
-                bos.write(data, 0, read);
-            }
-            return true;
-
-        } catch (Throwable e) {
-            Log.e(TAG,
-                    String.format(TAG, "Failed to copy from %s to %d", src, dst), e); //$NON-NLS-1$
-            return false;
-        } finally {
-            try {
-                if (bis != null) {
-                    bis.close();
-                }
-            } catch (Throwable e) {/**NON BLOCK**/}
-            try {
-                if (bos != null) {
-                    bos.close();
-                }
-            } catch (Throwable e) {/**NON BLOCK**/}
-        }
-
-    }
 }