src/com/owncloud/android/utils/DisplayUtils.java

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   @author Bartek Przybylski
   5  *   @author David A. Velasco
   6  *   Copyright (C) 2011  Bartek Przybylski
   7  *   Copyright (C) 2015 ownCloud Inc.
   8  *
   9  *   This program is free software: you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License version 2,
  11  *   as published by the Free Software Foundation.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  *
  21  */
  22
  23 package com.owncloud.android.utils;
  24
  25 import java.net.IDN;
  26 import java.text.DateFormat;
  27 import java.util.Arrays;
  28 import java.util.Calendar;
  29 import java.util.Date;
  30 import java.util.HashMap;
  31 import java.util.HashSet;
  32 import java.util.Set;
  33 import java.util.Vector;
  34
  35 import android.annotation.TargetApi;
  36 import android.content.Context;
  37 import android.os.Build;
  38 import android.text.format.DateUtils;
  39 import android.webkit.MimeTypeMap;
  40
  41 import com.owncloud.android.MainApp;
  42 import com.owncloud.android.R;
  43 import com.owncloud.android.datamodel.OCFile;
  44
  45 /**
  46  * A helper class for some string operations.
  47  */
  48 public class DisplayUtils {
  49
  50     private static final String OWNCLOUD_APP_NAME = "ownCloud";
  51
  52     //private static String TAG = DisplayUtils.class.getSimpleName();
  53
  54     private static final String[] sizeSuffixes = { "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };
  55
  56     private static HashMap<String, String> mimeType2HUmanReadable;
  57     static {
  58         mimeType2HUmanReadable = new HashMap<String, String>();
  59         // images
  60         mimeType2HUmanReadable.put("image/jpeg", "JPEG image");
  61         mimeType2HUmanReadable.put("image/jpg", "JPEG image");
  62         mimeType2HUmanReadable.put("image/png", "PNG image");
  63         mimeType2HUmanReadable.put("image/bmp", "Bitmap image");
  64         mimeType2HUmanReadable.put("image/gif", "GIF image");
  65         mimeType2HUmanReadable.put("image/svg+xml", "JPEG image");
  66         mimeType2HUmanReadable.put("image/tiff", "TIFF image");
  67         // music
  68         mimeType2HUmanReadable.put("audio/mpeg", "MP3 music file");
  69         mimeType2HUmanReadable.put("application/ogg", "OGG music file");
  70
  71     }
  72
  73     private static final String TYPE_APPLICATION = "application";
  74     private static final String TYPE_AUDIO = "audio";
  75     private static final String TYPE_IMAGE = "image";
  76     private static final String TYPE_TXT = "text";
  77     private static final String TYPE_VIDEO = "video";
  78
  79     private static final String SUBTYPE_PDF = "pdf";
  80     private static final String SUBTYPE_XML = "xml";
  81     private static final String[] SUBTYPES_DOCUMENT = {
  82         "msword",
  83         "vnd.openxmlformats-officedocument.wordprocessingml.document",
  84         "vnd.oasis.opendocument.text",
  85         "rtf",
  86         "javascript"
  87     };
  88     private static Set<String> SUBTYPES_DOCUMENT_SET = new HashSet<String>(Arrays.asList(SUBTYPES_DOCUMENT));
  89     private static final String[] SUBTYPES_SPREADSHEET = {
  90         "msexcel",
  91         "vnd.ms-excel",
  92         "vnd.openxmlformats-officedocument.spreadsheetml.sheet",
  93         "vnd.oasis.opendocument.spreadsheet"
  94     };
  95     private static Set<String> SUBTYPES_SPREADSHEET_SET = new HashSet<String>(Arrays.asList(SUBTYPES_SPREADSHEET));
  96     private static final String[] SUBTYPES_PRESENTATION = {
  97         "mspowerpoint",
  98         "vnd.ms-powerpoint",
  99         "vnd.openxmlformats-officedocument.presentationml.presentation",
 100         "vnd.oasis.opendocument.presentation"
 101     };
 102     private static Set<String> SUBTYPES_PRESENTATION_SET = new HashSet<String>(Arrays.asList(SUBTYPES_PRESENTATION));
 103     private static final String[] SUBTYPES_COMPRESSED = {"x-tar", "x-gzip", "zip"};
 104     private static final Set<String> SUBTYPES_COMPRESSED_SET = new HashSet<String>(Arrays.asList(SUBTYPES_COMPRESSED));
 105     private static final String SUBTYPE_OCTET_STREAM = "octet-stream";
 106     private static final String EXTENSION_RAR = "rar";
 107     private static final String EXTENSION_RTF = "rtf";
 108     private static final String EXTENSION_3GP = "3gp";
 109     private static final String EXTENSION_PY = "py";
 110     private static final String EXTENSION_JS = "js";
 111
 112     /**
 113      * Converts the file size in bytes to human readable output.
 114      *
 115      * @param bytes Input file size
 116      * @return Like something readable like "12 MB"
 117      */
 118     public static String bytesToHumanReadable(long bytes) {
 119         double result = bytes;
 120         int attachedsuff = 0;
 121         while (result > 1024 && attachedsuff < sizeSuffixes.length) {
 122             result /= 1024.;
 123             attachedsuff++;
 124         }
 125         result = ((int) (result * 100)) / 100.;
 126         return result + " " + sizeSuffixes[attachedsuff];
 127     }
 128
 129     /**
 130      * Converts MIME types like "image/jpg" to more end user friendly output
 131      * like "JPG image".
 132      *
 133      * @param mimetype MIME type to convert
 134      * @return A human friendly version of the MIME type
 135      */
 136     public static String convertMIMEtoPrettyPrint(String mimetype) {
 137         if (mimeType2HUmanReadable.containsKey(mimetype)) {
 138             return mimeType2HUmanReadable.get(mimetype);
 139         }
 140         if (mimetype.split("/").length >= 2)
 141             return mimetype.split("/")[1].toUpperCase() + " file";
 142         return "Unknown type";
 143     }
 144
 145
 146     /**
 147      * Returns the resource identifier of an image to use as icon associated to a known MIME type.
 148      *
 149      * @param mimetype      MIME type string; if NULL, the method tries to guess it from the extension in filename
 150      * @param filename      Name, with extension.
 151      * @return              Identifier of an image resource.
 152      */
 153     public static int getFileTypeIconId(String mimetype, String filename) {
 154
 155         if (mimetype == null) {
 156             String fileExtension = getExtension(filename);
 157             mimetype = MimeTypeMap.getSingleton().getMimeTypeFromExtension(fileExtension);
 158             if (mimetype == null) {
 159                 mimetype = TYPE_APPLICATION + "/" + SUBTYPE_OCTET_STREAM;
 160             }
 161         }
 162
 163         if ("DIR".equals(mimetype)) {
 164             return R.drawable.ic_menu_archive;
 165
 166         } else {
 167             String [] parts = mimetype.split("/");
 168             String type = parts[0];
 169             String subtype = (parts.length > 1) ? parts[1] : "";
 170
 171             if(TYPE_TXT.equals(type)) {
 172                 return R.drawable.file_doc;
 173
 174             } else if(TYPE_IMAGE.equals(type)) {
 175                 return R.drawable.file_image;
 176
 177             } else if(TYPE_VIDEO.equals(type)) {
 178                 return R.drawable.file_movie;
 179
 180             } else if(TYPE_AUDIO.equals(type)) {
 181                 return R.drawable.file_sound;
 182
 183             } else if(TYPE_APPLICATION.equals(type)) {
 184
 185                 if (SUBTYPE_PDF.equals(subtype)) {
 186                     return R.drawable.file_pdf;
 187
 188                 } else if (SUBTYPE_XML.equals(subtype)) {
 189                     return R.drawable.file_doc;
 190
 191                 } else if (SUBTYPES_DOCUMENT_SET.contains(subtype)) {
 192                     return R.drawable.file_doc;
 193
 194                 } else if (SUBTYPES_SPREADSHEET_SET.contains(subtype)) {
 195                     return R.drawable.file_xls;
 196
 197                 } else if (SUBTYPES_PRESENTATION_SET.contains(subtype)) {
 198                     return R.drawable.file_ppt;
 199
 200                 } else if (SUBTYPES_COMPRESSED_SET.contains(subtype)) {
 201                     return R.drawable.file_zip;
 202
 203                 } else if (SUBTYPE_OCTET_STREAM.equals(subtype) ) {
 204                     if (getExtension(filename).equalsIgnoreCase(EXTENSION_RAR)) {
 205                         return R.drawable.file_zip;
 206
 207                     } else if (getExtension(filename).equalsIgnoreCase(EXTENSION_RTF)) {
 208                         return R.drawable.file_doc;
 209
 210                     } else if (getExtension(filename).equalsIgnoreCase(EXTENSION_3GP)) {
 211                         return R.drawable.file_movie;
 212
 213                     } else if ( getExtension(filename).equalsIgnoreCase(EXTENSION_PY) ||
 214                                 getExtension(filename).equalsIgnoreCase(EXTENSION_JS)) {
 215                         return R.drawable.file_doc;
 216                     }
 217                 }
 218             }
 219         }
 220
 221         // default icon
 222         return R.drawable.file;
 223     }
 224
 225
 226     private static String getExtension(String filename) {
 227         String extension = filename.substring(filename.lastIndexOf(".") + 1).toLowerCase();
 228         return extension;
 229     }
 230
 231     /**
 232      * Converts Unix time to human readable format
 233      * @param milliseconds that have passed since 01/01/1970
 234      * @return The human readable time for the users locale
 235      */
 236     public static String unixTimeToHumanReadable(long milliseconds) {
 237         Date date = new Date(milliseconds);
 238         DateFormat df = DateFormat.getDateTimeInstance();
 239         return df.format(date);
 240     }
 241
 242
 243     public static int getSeasonalIconId() {
 244         if (Calendar.getInstance().get(Calendar.DAY_OF_YEAR) >= 354 &&
 245                 MainApp.getAppContext().getString(R.string.app_name).equals(OWNCLOUD_APP_NAME)) {
 246             return R.drawable.winter_holidays_icon;
 247         } else {
 248             return R.drawable.icon;
 249         }
 250     }
 251
 252     /**
 253      * Converts an internationalized domain name (IDN) in an URL to and from ASCII/Unicode.
 254      * @param url the URL where the domain name should be converted
 255      * @param toASCII if true converts from Unicode to ASCII, if false converts from ASCII to Unicode
 256      * @return the URL containing the converted domain name
 257      */
 258     @TargetApi(Build.VERSION_CODES.GINGERBREAD)
 259     public static String convertIdn(String url, boolean toASCII) {
 260
 261         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
 262             // Find host name after '//' or '@'
 263             int hostStart = 0;
 264             if  (url.indexOf("//") != -1) {
 265                 hostStart = url.indexOf("//") + "//".length();
 266             } else if (url.indexOf("@") != -1) {
 267                 hostStart = url.indexOf("@") + "@".length();
 268             }
 269
 270             int hostEnd = url.substring(hostStart).indexOf("/");
 271             // Handle URL which doesn't have a path (path is implicitly '/')
 272             hostEnd = (hostEnd == -1 ? url.length() : hostStart + hostEnd);
 273
 274             String host = url.substring(hostStart, hostEnd);
 275             host = (toASCII ? IDN.toASCII(host) : IDN.toUnicode(host));
 276
 277             return url.substring(0, hostStart) + host + url.substring(hostEnd);
 278         } else {
 279             return url;
 280         }
 281     }
 282
 283     /**
 284      * Get the file extension if it is on path as type "content://.../DocInfo.doc"
 285      * @param filepath: Content Uri converted to string format
 286      * @return String: fileExtension (type '.pdf'). Empty if no extension
 287      */
 288     public static String getComposedFileExtension(String filepath) {
 289         String fileExtension = "";
 290         String fileNameInContentUri = filepath.substring(filepath.lastIndexOf("/"));
 291
 292         // Check if extension is included in uri
 293         int pos = fileNameInContentUri.lastIndexOf('.');
 294         if (pos >= 0) {
 295             fileExtension = fileNameInContentUri.substring(pos);
 296         }
 297         return fileExtension;
 298     }
 299
 300     @SuppressWarnings("deprecation")
 301     public static CharSequence getRelativeDateTimeString (
 302             Context c, long time, long minResolution, long transitionResolution, int flags
 303             ){
 304
 305         CharSequence dateString = "";
 306
 307         // in Future
 308         if (time > System.currentTimeMillis()){
 309             return DisplayUtils.unixTimeToHumanReadable(time);
 310         }
 311         // < 60 seconds -> seconds ago
 312         else if ((System.currentTimeMillis() - time) < 60 * 1000) {
 313             return c.getString(R.string.file_list_seconds_ago);
 314         } else {
 315             // Workaround 2.x bug (see https://github.com/owncloud/android/issues/716)
 316             if (    Build.VERSION.SDK_INT <= Build.VERSION_CODES.HONEYCOMB &&
 317                     (System.currentTimeMillis() - time) > 24 * 60 * 60 * 1000   ) {
 318                 Date date = new Date(time);
 319                 date.setHours(0);
 320                 date.setMinutes(0);
 321                 date.setSeconds(0);
 322                 dateString = DateUtils.getRelativeDateTimeString(
 323                         c, date.getTime(), minResolution, transitionResolution, flags
 324                 );
 325             } else {
 326                 dateString = DateUtils.getRelativeDateTimeString(c, time, minResolution, transitionResolution, flags);
 327             }
 328         }
 329
 330         return dateString.toString().split(",")[0];
 331     }
 332
 333     /**
 334      * Update the passed path removing the last "/" if it is not the root folder
 335      * @param path
 336      */
 337     public static String getPathWithoutLastSlash(String path) {
 338
 339         // Remove last slash from path
 340         if (path.length() > 1 && path.charAt(path.length()-1) == OCFile.PATH_SEPARATOR.charAt(0)) {
 341             path = path.substring(0, path.length()-1);
 342         }
 343         return path;
 344     }
 345
 346 }