src/com/owncloud/android/files/FileMenuFilter.java

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   @author David A. Velasco
   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.files;
  22
  23 import java.util.ArrayList;
  24 import java.util.List;
  25
  26 import android.accounts.Account;
  27 import android.content.Context;
  28 import android.view.Menu;
  29 import android.view.MenuItem;
  30
  31 import com.owncloud.android.R;
  32 import com.owncloud.android.authentication.AccountUtils;
  33 import com.owncloud.android.datamodel.OCFile;
  34 import com.owncloud.android.files.services.FileDownloader;
  35 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  36 import com.owncloud.android.files.services.FileUploader;
  37 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  38 import com.owncloud.android.services.OperationsService.OperationsServiceBinder;
  39 import com.owncloud.android.ui.activity.ComponentsGetter;
  40
  41 /**
  42  * Filters out the file actions available in a given {@link Menu} for a given {@link OCFile}
  43  * according to the current state of the latest.
  44  */
  45 public class FileMenuFilter {
  46
  47     private OCFile mFile;
  48     private ComponentsGetter mComponentsGetter;
  49     private Account mAccount;
  50     private Context mContext;
  51
  52     /**
  53      * Constructor
  54      *
  55      * @param targetFile        {@link OCFile} target of the action to filter in the {@link Menu}.
  56      * @param account           ownCloud {@link Account} holding targetFile.
  57      * @param cg                Accessor to app components, needed to access the
  58      *                          {@link FileUploader} and {@link FileDownloader} services
  59      * @param context           Android {@link Context}, needed to access build setup resources.
  60      */
  61     public FileMenuFilter(OCFile targetFile, Account account, ComponentsGetter cg,
  62                           Context context) {
  63         mFile = targetFile;
  64         mAccount = account;
  65         mComponentsGetter = cg;
  66         mContext = context;
  67     }
  68
  69
  70     /**
  71      * Filters out the file actions available in the passed {@link Menu} taken into account
  72      * the state of the {@link OCFile} held by the filter.
  73      *
  74      * @param menu              Options or context menu to filter.
  75      */
  76     public void filter(Menu menu) {
  77         List<Integer> toShow = new ArrayList<Integer>();
  78         List<Integer> toHide = new ArrayList<Integer>();
  79
  80         filter(toShow, toHide);
  81
  82         MenuItem item = null;
  83         for (int i : toShow) {
  84             item = menu.findItem(i);
  85             if (item != null) {
  86                 item.setVisible(true);
  87                 item.setEnabled(true);
  88             }
  89         }
  90
  91         for (int i : toHide) {
  92             item = menu.findItem(i);
  93             if (item != null) {
  94                 item.setVisible(false);
  95                 item.setEnabled(false);
  96             }
  97         }
  98     }
  99
 100
 101     /**
 102      * Performs the real filtering, to be applied in the {@link Menu} by the caller methods.
 103      *
 104      * Decides what actions must be shown and hidden.
 105      *
 106      * @param toShow            List to save the options that must be shown in the menu.
 107      * @param toHide            List to save the options that must be shown in the menu.
 108      */
 109     private void filter(List<Integer> toShow, List <Integer> toHide) {
 110         boolean shareWithUsersEnable = false;
 111         boolean synchronizing = false;
 112         if (mComponentsGetter != null && mFile != null && mAccount != null) {
 113             OperationsServiceBinder opsBinder = mComponentsGetter.getOperationsServiceBinder();
 114             FileUploaderBinder uploaderBinder = mComponentsGetter.getFileUploaderBinder();
 115             FileDownloaderBinder downloaderBinder = mComponentsGetter.getFileDownloaderBinder();
 116             synchronizing = (
 117                 // comparing local and remote
 118                 (opsBinder != null && opsBinder.isSynchronizing(mAccount, mFile.getRemotePath())) ||
 119                 // downloading
 120                 (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, mFile)) ||
 121                 // uploading
 122                 (uploaderBinder != null && uploaderBinder.isUploading(mAccount, mFile))
 123             );
 124             shareWithUsersEnable = AccountUtils.hasSearchUsersSupport(mAccount);
 125         }
 126
 127         /// decision is taken for each possible action on a file in the menu
 128
 129         // DOWNLOAD
 130         if (mFile == null || mFile.isDown() || mFile.isFolder() || synchronizing) {
 131             toHide.add(R.id.action_download_file);
 132
 133         } else {
 134             toShow.add(R.id.action_download_file);
 135         }
 136
 137         // RENAME
 138         if (mFile == null || synchronizing) {
 139             toHide.add(R.id.action_rename_file);
 140
 141         } else {
 142             toShow.add(R.id.action_rename_file);
 143         }
 144
 145         // MOVE & COPY
 146         if (mFile == null || synchronizing) {
 147             toHide.add(R.id.action_move);
 148             toHide.add(R.id.action_copy);
 149         } else {
 150             toShow.add(R.id.action_move);
 151             toShow.add(R.id.action_copy);
 152         }
 153
 154         // REMOVE
 155         if (mFile == null || synchronizing) {
 156             toHide.add(R.id.action_remove_file);
 157
 158         } else {
 159             toShow.add(R.id.action_remove_file);
 160         }
 161
 162         // OPEN WITH (different to preview!)
 163         if (mFile == null || mFile.isFolder() || !mFile.isDown() || synchronizing) {
 164             toHide.add(R.id.action_open_file_with);
 165
 166         } else {
 167             toShow.add(R.id.action_open_file_with);
 168         }
 169
 170         // CANCEL SYNCHRONIZATION
 171         if (mFile == null || !synchronizing) {
 172             toHide.add(R.id.action_cancel_sync);
 173
 174         } else {
 175             toShow.add(R.id.action_cancel_sync);
 176         }
 177
 178         // SYNC CONTENTS (BOTH FILE AND FOLDER)
 179         if (mFile == null || (!mFile.isFolder() && !mFile.isDown()) || synchronizing) {
 180             toHide.add(R.id.action_sync_file);
 181
 182         } else {
 183             toShow.add(R.id.action_sync_file);
 184         }
 185
 186         // SHARE FILE
 187         // TODO add check on SHARE available on server side?
 188         boolean shareAllowed = (mContext != null  &&
 189                 mContext.getString(R.string.share_feature).equalsIgnoreCase("on"));
 190         if (!shareAllowed || mFile == null) {
 191             toHide.add(R.id.action_share_file);
 192         } else {
 193             toShow.add(R.id.action_share_file);
 194         }
 195
 196         // UNSHARE FILE
 197         // TODO add check on SHARE available on server side?
 198         if ( !shareAllowed || (mFile == null || !mFile.isSharedViaLink())) {
 199             toHide.add(R.id.action_unshare_file);
 200         } else {
 201             toShow.add(R.id.action_unshare_file);
 202         }
 203
 204         // SHARE FILE, with Users
 205         if (!shareAllowed || !shareWithUsersEnable || mFile == null) {
 206             toHide.add(R.id.action_share_with_users);
 207         } else {
 208             toShow.add(R.id.action_share_with_users);
 209         }
 210
 211
 212         // SEE DETAILS
 213         if (mFile == null || mFile.isFolder()) {
 214             toHide.add(R.id.action_see_details);
 215         } else {
 216             toShow.add(R.id.action_see_details);
 217         }
 218
 219         // SEND
 220         boolean sendAllowed = (mContext != null &&
 221                 mContext.getString(R.string.send_files_to_other_apps).equalsIgnoreCase("on"));
 222         if (mFile == null || !sendAllowed || mFile.isFolder() || synchronizing) {
 223             toHide.add(R.id.action_send_file);
 224         } else {
 225             toShow.add(R.id.action_send_file);
 226         }
 227
 228         // FAVORITES
 229         if (mFile == null || synchronizing || mFile.isFolder() || mFile.isFavorite()) {
 230             toHide.add(R.id.action_favorite_file);
 231         } else {
 232             toShow.add(R.id.action_favorite_file);
 233         }
 234
 235         // UNFAVORITES
 236         if (mFile == null || synchronizing || mFile.isFolder() || !mFile.isFavorite()) {
 237             toHide.add(R.id.action_unfavorite_file);
 238         } else {
 239             toShow.add(R.id.action_unfavorite_file);
 240         }
 241
 242     }
 243
 244 }