add OI File Manager and AndroidSupportV2 used by it

[android_pandora.git] / apps / oi-filemanager / FileManager / src / org / openintents / filemanager / util / CompressManager.java

diff --git a/apps/oi-filemanager/FileManager/src/org/openintents/filemanager/util/CompressManager.java b/apps/oi-filemanager/FileManager/src/org/openintents/filemanager/util/CompressManager.java
new file mode 100644 (file)
index 0000000..d18f863
--- /dev/null
+++ b/apps/oi-filemanager/FileManager/src/org/openintents/filemanager/util/CompressManager.java
@@ -0,0 +1,147 @@
+package org.openintents.filemanager.util;\r
+\r
+import android.app.ProgressDialog;\r
+import android.content.Intent;\r
+import android.os.AsyncTask;\r
+import android.util.Log;\r
+import android.widget.Toast;\r
+import org.openintents.filemanager.FileManagerActivity;\r
+import org.openintents.filemanager.R;\r
+import org.openintents.intents.FileManagerIntents;\r
+\r
+import java.io.*;\r
+import java.util.ArrayList;\r
+import java.util.List;\r
+import java.util.zip.ZipEntry;\r
+import java.util.zip.ZipOutputStream;\r
+\r
+public class CompressManager {\r
+    /**\r
+     * TAG for log messages.\r
+     */\r
+    static final String TAG = "CompressManager";\r
+\r
+    private static final int BUFFER_SIZE = 1024;\r
+    private FileManagerActivity activity;\r
+    private ProgressDialog progressDialog;\r
+    private int fileCount;\r
+    private String fileOut;\r
+\r
+    public CompressManager(FileManagerActivity activity) {\r
+        this.activity = activity;\r
+    }\r
+\r
+    public void compress(File f, String out) {\r
+        List <File>list = new ArrayList<File>();\r
+        list.add(f);\r
+        compress(list, out);\r
+    }    \r
+\r
+    public void compress(List<File> list, String out) {\r
+        if (list.isEmpty()){\r
+            Log.v(TAG, "couldn't compress empty file list");\r
+            return;\r
+        }\r
+        this.fileOut = list.get(0).getParent()+File.separator+out;\r
+        fileCount=0;\r
+        for (File f: list){\r
+            fileCount += FileUtils.getFileCount(f);\r
+        }\r
+        new CompressTask().execute(list);\r
+    }\r
+\r
+    private class CompressTask extends AsyncTask<Object, Void, Integer> {\r
+        private static final int success = 0;\r
+        private static final int error = 1;\r
+        private ZipOutputStream zos;\r
+\r
+        /**\r
+         * count of compressed file to update the progress bar\r
+         */\r
+        private int isCompressed = 0;\r
+\r
+        /**\r
+         * Recursively compress file or directory\r
+         * @returns 0 if successful, error value otherwise.\r
+         */\r
+        private void compressFile(File file, String path) throws IOException {\r
+            if (!file.isDirectory()){\r
+                byte[] buf = new byte[BUFFER_SIZE];\r
+                int len;\r
+                FileInputStream in = new FileInputStream(file);\r
+                zos.putNextEntry(new ZipEntry(path + "/" + file.getName()));\r
+                while ((len = in.read(buf)) > 0) {\r
+                    zos.write(buf, 0, len);\r
+                }\r
+                in.close();\r
+                return;\r
+            }\r
+            if (file.list() == null){\r
+                return;\r
+            }\r
+            for (String fileName: file.list()){\r
+                File f = new File(file.getAbsolutePath()+File.separator+fileName);\r
+                compressFile(f, path + File.separator + file.getName());\r
+                isCompressed++;\r
+                progressDialog.setProgress((isCompressed * 100)/ fileCount);\r
+            }\r
+        }\r
+\r
+        @Override\r
+        protected void onPreExecute() {\r
+            FileOutputStream out = null;\r
+            progressDialog = new ProgressDialog(activity);\r
+            progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);\r
+            progressDialog.setMessage(activity.getResources().getString(R.string.compressing));\r
+            progressDialog.show();\r
+            progressDialog.setProgress(0);\r
+            try {\r
+                out = new FileOutputStream(new File(fileOut));\r
+                zos = new ZipOutputStream(new BufferedOutputStream(out));\r
+            } catch (FileNotFoundException e) {\r
+                Log.e(TAG, "error while creating ZipOutputStream");\r
+            }\r
+        }\r
+\r
+        @Override\r
+        protected Integer doInBackground(Object... params) {\r
+            if (zos == null){\r
+                return error;\r
+            }\r
+            List<File> list = (List<File>) params[0]; \r
+            for (File file:list){\r
+                try {\r
+                    compressFile(file, "");\r
+                } catch (IOException e) {\r
+                    Log.e(TAG, "Error while compressing", e);\r
+                    return error;\r
+                }\r
+            }\r
+            return success;\r
+        }\r
+\r
+        @Override\r
+        protected void onPostExecute(Integer result) {\r
+            try {\r
+                zos.flush();\r
+                zos.close();\r
+            } catch (IOException e) {\r
+                Log.e(TAG, "error while closing zos", e);\r
+            }\r
+            progressDialog.cancel();\r
+            if (result == error){\r
+                Toast.makeText(activity, R.string.compressing_error, Toast.LENGTH_SHORT).show();\r
+            } else if (result == success){\r
+                Toast.makeText(activity, R.string.compressing_success, Toast.LENGTH_SHORT).show();\r
+            }\r
+\r
+            if (activity.getIntent().getAction().equals(FileManagerIntents.ACTION_MULTI_SELECT)){\r
+                Intent intent = activity.getIntent();\r
+                activity.setResult(activity.RESULT_OK, intent);\r
+                activity.finish();\r
+            } else {\r
+                activity.refreshList();\r
+            }\r
+        }\r
+    }\r
+}\r