src/frontends/android/src/org/strongswan/android/ui/RemediationInstructionsFragment.java

   1 /*
   2  * Copyright (C) 2013 Tobias Brunner
   3  * Hochschule fuer Technik Rapperswil
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  */
  15
  16 package org.strongswan.android.ui;
  17
  18 import java.util.ArrayList;
  19
  20 import org.strongswan.android.R;
  21 import org.strongswan.android.logic.imc.RemediationInstruction;
  22 import org.strongswan.android.ui.adapter.RemediationInstructionAdapter;
  23
  24 import android.app.Activity;
  25 import android.app.ListFragment;
  26 import android.os.Bundle;
  27 import android.view.View;
  28 import android.widget.ListView;
  29
  30 public class RemediationInstructionsFragment extends ListFragment
  31 {
  32         public static final String EXTRA_REMEDIATION_INSTRUCTIONS = "instructions";
  33         private static final String KEY_POSITION = "position";
  34         private ArrayList<RemediationInstruction> mInstructions = null;
  35         private OnRemediationInstructionSelectedListener mListener;
  36         private RemediationInstructionAdapter mAdapter;
  37         private int mCurrentPosition = -1;
  38
  39         /**
  40          * The activity containing this fragment should implement this interface
  41          */
  42         public interface OnRemediationInstructionSelectedListener
  43         {
  44                 public void onRemediationInstructionSelected(RemediationInstruction instruction);
  45         }
  46
  47         @Override
  48         public void onActivityCreated(Bundle savedInstanceState)
  49         {
  50                 super.onActivityCreated(savedInstanceState);
  51
  52                 if (savedInstanceState != null)
  53                 {
  54                         mInstructions = savedInstanceState.getParcelableArrayList(EXTRA_REMEDIATION_INSTRUCTIONS);
  55                         mCurrentPosition = savedInstanceState.getInt(KEY_POSITION);
  56                 }
  57         }
  58
  59         @Override
  60         public void onSaveInstanceState(Bundle outState)
  61         {
  62                 super.onSaveInstanceState(outState);
  63                 outState.putParcelableArrayList(RemediationInstructionsFragment.EXTRA_REMEDIATION_INSTRUCTIONS, mInstructions);
  64                 outState.putInt(KEY_POSITION, mCurrentPosition);
  65         }
  66
  67         @Override
  68         public void onAttach(Activity activity)
  69         {
  70                 super.onAttach(activity);
  71
  72                 if (activity instanceof OnRemediationInstructionSelectedListener)
  73                 {
  74                         mListener = (OnRemediationInstructionSelectedListener)activity;
  75                 }
  76         }
  77
  78         @Override
  79         public void onStart()
  80         {
  81                 super.onStart();
  82
  83                 boolean two_pane = getFragmentManager().findFragmentById(R.id.remediation_instruction_fragment) != null;
  84                 if (two_pane)
  85                 {       /* two-pane layout, make list items selectable */
  86                         getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
  87                 }
  88
  89                 Bundle args = getArguments();
  90                 if (mInstructions == null && args != null)
  91                 {
  92                         mInstructions = args.getParcelableArrayList(EXTRA_REMEDIATION_INSTRUCTIONS);
  93                 }
  94                 updateView(mInstructions);
  95
  96                 if (two_pane && mCurrentPosition == -1 && mInstructions.size() > 0)
  97                 {       /* two-pane layout, select first instruction */
  98                         mCurrentPosition = 0;
  99                         mListener.onRemediationInstructionSelected(mInstructions.get(0));
 100                 }
 101                 getListView().setItemChecked(mCurrentPosition, true);
 102         }
 103
 104         @Override
 105         public void onListItemClick(ListView l, View v, int position, long id)
 106         {
 107                 mCurrentPosition = position;
 108                 mListener.onRemediationInstructionSelected(mInstructions.get(position));
 109                 getListView().setItemChecked(position, true);
 110         }
 111
 112         public void updateView(ArrayList<RemediationInstruction> instructions)
 113         {
 114                 if (mAdapter == null)
 115                 {
 116                         mAdapter = new RemediationInstructionAdapter(getActivity());
 117                         setListAdapter(mAdapter);
 118                 }
 119                 mInstructions = instructions;
 120                 mAdapter.setData(mInstructions);
 121         }
 122 }