src/com/owncloud/android/ui/fragment/ShareFileFragment.java

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   @author masensio
   5  *   Copyright (C) 2015 ownCloud Inc.
   6  *
   7  *   This program is free software: you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License version 2,
   9  *   as published by the Free Software Foundation.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  *
  19  */
  20
  21 package com.owncloud.android.ui.fragment;
  22
  23 import android.accounts.Account;
  24 import android.app.Activity;
  25 import android.graphics.Bitmap;
  26 import android.net.Uri;
  27 import android.os.Bundle;
  28 import android.support.v4.app.Fragment;
  29 import android.view.LayoutInflater;
  30 import android.view.View;
  31 import android.view.ViewGroup;
  32 import android.widget.AdapterView;
  33 import android.widget.Button;
  34 import android.widget.ImageView;
  35 import android.widget.ListView;
  36 import android.widget.TextView;
  37
  38 import com.owncloud.android.R;
  39 import com.owncloud.android.datamodel.FileDataStorageManager;
  40 import com.owncloud.android.datamodel.OCFile;
  41 import com.owncloud.android.datamodel.ThumbnailsCacheManager;
  42 import com.owncloud.android.lib.common.utils.Log_OC;
  43 import com.owncloud.android.lib.resources.shares.OCShare;
  44 import com.owncloud.android.ui.activity.FileActivity;
  45 import com.owncloud.android.ui.adapter.ShareUserListAdapter;
  46 import com.owncloud.android.utils.DisplayUtils;
  47 import com.owncloud.android.utils.MimetypeIconUtil;
  48
  49 import java.util.ArrayList;
  50
  51 /**
  52  * Fragment for Sharing a file with users
  53  *
  54  * A simple {@link Fragment} subclass.
  55  * Activities that contain this fragment must implement the
  56  * {@link ShareFileFragment.OnShareFragmentInteractionListener} interface
  57  * to handle interaction events.
  58  * Use the {@link ShareFileFragment#newInstance} factory method to
  59  * create an instance of this fragment.
  60  */
  61 public class ShareFileFragment extends Fragment {
  62
  63     private static final String TAG = ShareFileFragment.class.getSimpleName();
  64
  65     // the fragment initialization parameters
  66     private static final String ARG_FILE = "FILE";
  67     private static final String ARG_ACCOUNT = "ACCOUNT";
  68
  69     // Parameters
  70     private OCFile mFile;
  71     private Account mAccount;
  72
  73     private ArrayList<OCShare> mShares;
  74     private ShareUserListAdapter mUserGroupsAdapter = null;
  75
  76     private OnShareFragmentInteractionListener mListener;
  77
  78     /**
  79      * Public factory method to create new ShareFileFragment instances.
  80      *
  81      * @param fileToShare An {@link OCFile} to show in the fragment
  82      * @param account     An ownCloud account
  83      * @return A new instance of fragment ShareFileFragment.
  84      */
  85     public static ShareFileFragment newInstance(OCFile fileToShare, Account account) {
  86         ShareFileFragment fragment = new ShareFileFragment();
  87         Bundle args = new Bundle();
  88         args.putParcelable(ARG_FILE, fileToShare);
  89         args.putParcelable(ARG_ACCOUNT, account);
  90         fragment.setArguments(args);
  91         return fragment;
  92     }
  93
  94     public ShareFileFragment() {
  95         // Required empty public constructor
  96     }
  97
  98     @Override
  99     public void onCreate(Bundle savedInstanceState) {
 100         super.onCreate(savedInstanceState);
 101         if (getArguments() != null) {
 102             mFile = getArguments().getParcelable(ARG_FILE);
 103             mAccount = getArguments().getParcelable(ARG_ACCOUNT);
 104         }
 105     }
 106
 107     @Override
 108     public View onCreateView(LayoutInflater inflater, ViewGroup container,
 109                              Bundle savedInstanceState) {
 110         // Inflate the layout for this fragment
 111         View view = inflater.inflate(R.layout.share_file_layout, container, false);
 112
 113         // Setup layout
 114         // Image
 115         ImageView icon = (ImageView) view.findViewById(R.id.shareFileIcon);
 116         icon.setImageResource(MimetypeIconUtil.getFileTypeIconId(mFile.getMimetype(),
 117                 mFile.getFileName()));
 118         if (mFile.isImage()) {
 119             String remoteId = String.valueOf(mFile.getRemoteId());
 120             Bitmap thumbnail = ThumbnailsCacheManager.getBitmapFromDiskCache(remoteId);
 121             if (thumbnail != null) {
 122                 icon.setImageBitmap(thumbnail);
 123             }
 124         }
 125         // Name
 126         TextView filename = (TextView) view.findViewById(R.id.shareFileName);
 127         filename.setText(mFile.getFileName());
 128         // Size
 129         TextView size = (TextView) view.findViewById(R.id.shareFileSize);
 130         if (mFile.isFolder()) {
 131             size.setVisibility(View.GONE);
 132         } else {
 133             size.setText(DisplayUtils.bytesToHumanReadable(mFile.getFileLength()));
 134         }
 135
 136         //  Add User Button
 137         Button addUserGroupButton = (Button)
 138                 view.findViewById(R.id.addUserButton);
 139         addUserGroupButton.setOnClickListener(new View.OnClickListener() {
 140             @Override
 141             public void onClick(View view) {
 142                 // Show Search Fragment
 143                 mListener.showSearchUsersAndGroups();
 144             }
 145         });
 146
 147         return view;
 148     }
 149
 150     @Override
 151     public void onActivityCreated(Bundle savedInstanceState) {
 152         super.onActivityCreated(savedInstanceState);
 153
 154         refreshUsersOrGroupsList();
 155     }
 156
 157     // TODO: Rename method, update argument and hook method into UI event
 158     public void onButtonPressed(Uri uri) {
 159         if (mListener != null) {
 160             mListener.onShareFragmentInteraction(uri);
 161         }
 162     }
 163
 164     @Override
 165     public void onAttach(Activity activity) {
 166         super.onAttach(activity);
 167         try {
 168             mListener = (OnShareFragmentInteractionListener) activity;
 169         } catch (ClassCastException e) {
 170             throw new ClassCastException(activity.toString()
 171                     + " must implement OnShareFragmentInteractionListener");
 172         }
 173     }
 174
 175     @Override
 176     public void onDetach() {
 177         super.onDetach();
 178         mListener = null;
 179     }
 180
 181     // Get users and groups to fill the "share with" list
 182     public void refreshUsersOrGroupsList(){
 183         mShares = new ArrayList<>();
 184
 185         // Get Users and Groups
 186         FileDataStorageManager fileDataStorageManager =
 187                 new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 188         mShares = fileDataStorageManager.getSharesWithForAFile(mFile.getRemotePath(),
 189                 mAccount.name);
 190
 191         // Update list of users/groups
 192         updateListOfUserGroups();
 193     }
 194
 195     private void updateListOfUserGroups() {
 196         // Update list of users/groups
 197         mUserGroupsAdapter = new ShareUserListAdapter(getActivity().getApplicationContext(),
 198                 R.layout.share_user_item, mShares);
 199
 200         // Show data
 201         TextView noShares = (TextView) getView().findViewById(R.id.shareNoUsers);
 202         ListView usersList = (ListView) getView().findViewById(R.id.shareUsersList);
 203
 204         if (mShares.size() > 0) {
 205             noShares.setVisibility(View.GONE);
 206             usersList.setVisibility(View.VISIBLE);
 207             usersList.setAdapter(mUserGroupsAdapter);
 208
 209             // Add unshare options
 210             registerLongClickListener(usersList);
 211
 212         } else {
 213             noShares.setVisibility(View.VISIBLE);
 214             usersList.setVisibility(View.GONE);
 215         }
 216     }
 217
 218     private void registerLongClickListener(final ListView listView) {
 219         listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
 220             @Override
 221             public boolean onItemLongClick(AdapterView<?> parent, View view, final int position,
 222                                            long id) {
 223                 // Show unshare button
 224                 ImageView unshareButton = (ImageView) view.findViewById(R.id.unshareButton);
 225                 if (unshareButton.getVisibility() == View.GONE) {
 226                     unshareButton.setVisibility(View.VISIBLE);
 227                     unshareButton.setOnClickListener(new View.OnClickListener() {
 228                         @Override
 229                         public void onClick(View v) {
 230                             // Unshare
 231                             unshareWith(mShares.get(position));
 232                             Log_OC.d(TAG, "Unshare - " +
 233                                     mShares.get(position).getSharedWithDisplayName());
 234                         }
 235                     });
 236
 237                 } else {
 238                     unshareButton.setVisibility(View.GONE);
 239                 }
 240                 view.setAlpha(0);
 241                 view.animate().alpha(1).setDuration(500).start();
 242                 return false;
 243             }
 244         });
 245     }
 246
 247     // Call to Unshare operation
 248     private void unshareWith(OCShare share){
 249         OCFile file = ((FileActivity) getActivity()).getFile();
 250
 251         ((FileActivity) getActivity()).getFileOperationsHelper().
 252                 unshareFileWithUserOrGroup(
 253                         file, share.getShareType(), share.getShareWith()
 254                 );
 255     }
 256
 257
 258     // TODO: review if it is necessary
 259     /**
 260      * This interface must be implemented by activities that contain this
 261      * fragment to allow an interaction in this fragment to be communicated
 262      * to the activity and potentially other fragments contained in that
 263      * activity.
 264      * <p/>
 265      * See the Android Training lesson <a href=
 266      * "http://developer.android.com/training/basics/fragments/communicating.html"
 267      * >Communicating with Other Fragments</a> for more information.
 268      */
 269     public interface OnShareFragmentInteractionListener {
 270         void showSearchUsersAndGroups();
 271
 272         void onShareFragmentInteraction(Uri uri);
 273     }
 274
 275 }