git.gag.com Git - debian/openrocket/blob - android/src/net/sf/openrocket/android/rocket/OpenRocketSaverFragment.java

   1 package net.sf.openrocket.android.rocket;\r
   2 \r
   3 import net.sf.openrocket.android.CurrentRocketHolder;\r
   4 import net.sf.openrocket.android.util.AndroidLogWrapper;\r
   5 import net.sf.openrocket.android.util.ProgressDialogFragment;\r
   6 import android.app.Activity;\r
   7 import android.os.AsyncTask;\r
   8 import android.os.Bundle;\r
   9 import android.support.v4.app.DialogFragment;\r
  10 import android.support.v4.app.Fragment;\r
  11 import android.view.LayoutInflater;\r
  12 import android.view.View;\r
  13 import android.view.ViewGroup;\r
  14 \r
  15 public class OpenRocketSaverFragment extends Fragment {\r
  16         \r
  17         private final static String SAVING_MESSAGE = "Savinging file...";\r
  18 \r
  19         public static OpenRocketSaverFragment newInstance() {\r
  20                 OpenRocketSaverFragment frag = new OpenRocketSaverFragment();\r
  21                 Bundle b = new Bundle();\r
  22                 frag.setArguments(b);\r
  23                 return frag;\r
  24         }\r
  25         \r
  26         public interface OnOpenRocketFileSaved {\r
  27                 public void onOpenRocketFileSaved( Boolean result );\r
  28         }\r
  29         \r
  30         private OpenRocketSaverTask task;\r
  31         private OnOpenRocketFileSaved listener;\r
  32         \r
  33         @Override\r
  34         public void onCreate(Bundle savedInstanceState) {\r
  35                 super.onCreate(savedInstanceState);\r
  36                 setRetainInstance(true);\r
  37                 Bundle b = getArguments();\r
  38                 if ( task == null ) {\r
  39                         // since we retain instance state, task will be non-null if it is already loading.\r
  40                         task = new OpenRocketSaverTask();\r
  41                         task.execute();\r
  42                 }\r
  43         }\r
  44 \r
  45         @Override\r
  46         public View onCreateView(LayoutInflater inflater, ViewGroup container,\r
  47                         Bundle savedInstanceState) {\r
  48                 return null;\r
  49         }\r
  50 \r
  51         @Override\r
  52         public void onActivityCreated(Bundle arg0) {\r
  53                 super.onActivityCreated(arg0);\r
  54                 Activity parent = getActivity();\r
  55                 if ( parent instanceof OnOpenRocketFileSaved ) {\r
  56                         listener = (OnOpenRocketFileSaved) parent;\r
  57                 }\r
  58         }\r
  59 \r
  60         public class OpenRocketSaverTask extends AsyncTask<Void, Void, Boolean> {\r
  61                 \r
  62                 private final static String PROGRESS_DIALOG_TAG = "progress_dialog";\r
  63                 \r
  64                 @Override\r
  65                 protected void onPreExecute() {\r
  66                         super.onPreExecute();\r
  67                         DialogFragment newFragment = ProgressDialogFragment.newInstance("", SAVING_MESSAGE);\r
  68                         newFragment.show(getFragmentManager(), PROGRESS_DIALOG_TAG);\r
  69                 }\r
  70 \r
  71                 /* (non-Javadoc)\r
  72                  * @see android.os.AsyncTask#doInBackground(Params[])\r
  73                  */\r
  74                 @Override\r
  75                 protected Boolean doInBackground(Void... arg0) {\r
  76                         AndroidLogWrapper.d(OpenRocketSaverTask.class, "doInBackgroud");\r
  77                         \r
  78                         try {\r
  79                                 CurrentRocketHolder.getCurrentRocket().saveOpenRocketDocument();\r
  80                                 return true;\r
  81                         } catch (Throwable ex) {\r
  82                                 AndroidLogWrapper.e(OpenRocketSaverTask.class, "doInBackground rocketLaoder.load threw {}", ex);\r
  83                         }\r
  84                         return false;\r
  85                         \r
  86                 }\r
  87 \r
  88                 @Override\r
  89                 protected void onPostExecute(Boolean result) {\r
  90                         super.onPostExecute(result);\r
  91                         AndroidLogWrapper.d(OpenRocketSaverFragment.class,"Finished saving " + OpenRocketSaverTask.this);\r
  92                         Fragment progress = getActivity().getSupportFragmentManager().findFragmentByTag(PROGRESS_DIALOG_TAG);\r
  93                         if ( progress != null ) {\r
  94                                 // Remove the fragment instead of trying to use DialogFragment.dismiss.\r
  95                                 // If the dialog is now currently shown, dismiss fails.\r
  96                                 getFragmentManager().beginTransaction().remove(progress).commitAllowingStateLoss();\r
  97                         }\r
  98                         if ( listener != null ) {\r
  99                                 listener.onOpenRocketFileSaved(result);\r
 100                         }\r
 101                 }\r
 102 \r
 103         }\r
 104 \r
 105 }\r