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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.utils;
  20
  21 import java.net.IDN;
  22 import java.text.DateFormat;
  23 import java.util.Arrays;
  24 import java.util.Calendar;
  25 import java.util.Date;
  26 import java.util.HashMap;
  27 import java.util.HashSet;
  28 import java.util.Set;
  29 import java.util.Vector;
  30
  31 import android.annotation.TargetApi;
  32 import android.content.Context;
  33 import android.os.Build;
  34 import android.text.format.DateUtils;
  35 import android.webkit.MimeTypeMap;
  36
  37 import com.owncloud.android.MainApp;
  38 import com.owncloud.android.R;
  39 import com.owncloud.android.datamodel.OCFile;
  40
  41 /**
  42  * A helper class for some string operations.
  43  *
  44  * @author Bartek Przybylski
  45  * @author David A. Velasco
  46  */
  47 public class DisplayUtils {
  48
  49     private static final String OWNCLOUD_APP_NAME = "ownCloud";
  50
  51     //private static String TAG = DisplayUtils.class.getSimpleName();
  52
  53     private static final String[] sizeSuffixes = { "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };
  54
  55     private static HashMap<String, String> mimeType2HUmanReadable;
  56     static {
  57         mimeType2HUmanReadable = new HashMap<String, String>();
  58         // images
  59         mimeType2HUmanReadable.put("image/jpeg", "JPEG image");
  60         mimeType2HUmanReadable.put("image/jpg", "JPEG image");
  61         mimeType2HUmanReadable.put("image/png", "PNG image");
  62         mimeType2HUmanReadable.put("image/bmp", "Bitmap image");
  63         mimeType2HUmanReadable.put("image/gif", "GIF image");
  64         mimeType2HUmanReadable.put("image/svg+xml", "JPEG image");
  65         mimeType2HUmanReadable.put("image/tiff", "TIFF image");
  66         // music
  67         mimeType2HUmanReadable.put("audio/mpeg", "MP3 music file");
  68         mimeType2HUmanReadable.put("application/ogg", "OGG music file");
  69
  70     }
  71
  72     private static final String TYPE_APPLICATION = "application";
  73     private static final String TYPE_AUDIO = "audio";
  74     private static final String TYPE_IMAGE = "image";
  75     private static final String TYPE_TXT = "text";
  76     private static final String TYPE_VIDEO = "video";
  77
  78     private static final String SUBTYPE_PDF = "pdf";
  79     private static final String SUBTYPE_XML = "xml";
  80     private static final String[] SUBTYPES_DOCUMENT = {
  81         "msword",
  82         "vnd.openxmlformats-officedocument.wordprocessingml.document",
  83         "vnd.oasis.opendocument.text",
  84         "rtf",
  85         "javascript"
  86     };
  87     private static Set<String> SUBTYPES_DOCUMENT_SET = new HashSet<String>(Arrays.asList(SUBTYPES_DOCUMENT));
  88     private static final String[] SUBTYPES_SPREADSHEET = {
  89         "msexcel",
  90         "vnd.ms-excel",
  91         "vnd.openxmlformats-officedocument.spreadsheetml.sheet",
  92         "vnd.oasis.opendocument.spreadsheet"
  93     };
  94     private static Set<String> SUBTYPES_SPREADSHEET_SET = new HashSet<String>(Arrays.asList(SUBTYPES_SPREADSHEET));
  95     private static final String[] SUBTYPES_PRESENTATION = {
  96         "mspowerpoint",
  97         "vnd.ms-powerpoint",
  98         "vnd.openxmlformats-officedocument.presentationml.presentation",
  99         "vnd.oasis.opendocument.presentation"
 100     };
 101     private static Set<String> SUBTYPES_PRESENTATION_SET = new HashSet<String>(Arrays.asList(SUBTYPES_PRESENTATION));
 102     private static final String[] SUBTYPES_COMPRESSED = {"x-tar", "x-gzip", "zip"};
 103     private static final Set<String> SUBTYPES_COMPRESSED_SET = new HashSet<String>(Arrays.asList(SUBTYPES_COMPRESSED));
 104     private static final String SUBTYPE_OCTET_STREAM = "octet-stream";
 105     private static final String EXTENSION_RAR = "rar";
 106     private static final String EXTENSION_RTF = "rtf";
 107     private static final String EXTENSION_3GP = "3gp";
 108     private static final String EXTENSION_PY = "py";
 109     private static final String EXTENSION_JS = "js";
 110
 111     /**
 112      * Converts the file size in bytes to human readable output.
 113      *
 114      * @param bytes Input file size
 115      * @return Like something readable like "12 MB"
 116      */
 117     public static String bytesToHumanReadable(long bytes) {
 118         double result = bytes;
 119         int attachedsuff = 0;
 120         while (result > 1024 && attachedsuff < sizeSuffixes.length) {
 121             result /= 1024.;
 122             attachedsuff++;
 123         }
 124         result = ((int) (result * 100)) / 100.;
 125         return result + " " + sizeSuffixes[attachedsuff];
 126     }
 127
 128     /**
 129      * Converts MIME types like "image/jpg" to more end user friendly output
 130      * like "JPG image".
 131      *
 132      * @param mimetype MIME type to convert
 133      * @return A human friendly version of the MIME type
 134      */
 135     public static String convertMIMEtoPrettyPrint(String mimetype) {
 136         if (mimeType2HUmanReadable.containsKey(mimetype)) {
 137             return mimeType2HUmanReadable.get(mimetype);
 138         }
 139         if (mimetype.split("/").length >= 2)
 140             return mimetype.split("/")[1].toUpperCase() + " file";
 141         return "Unknown type";
 142     }
 143
 144
 145     /**
 146      * Returns the resource identifier of an image to use as icon associated to a known MIME type.
 147      *
 148      * @param mimetype      MIME type string; if NULL, the method tries to guess it from the extension in filename
 149      * @param filename      Name, with extension.
 150      * @return              Identifier of an image resource.
 151      */
 152     public static int getFileTypeIconId(String mimetype, String filename) {
 153
 154         if (mimetype == null) {
 155             String fileExtension = getExtension(filename);
 156             mimetype = MimeTypeMap.getSingleton().getMimeTypeFromExtension(fileExtension);
 157             if (mimetype == null) {
 158                 mimetype = TYPE_APPLICATION + "/" + SUBTYPE_OCTET_STREAM;
 159             }
 160         }
 161
 162         if ("DIR".equals(mimetype)) {
 163             return R.drawable.ic_menu_archive;
 164
 165         } else {
 166             String [] parts = mimetype.split("/");
 167             String type = parts[0];
 168             String subtype = (parts.length > 1) ? parts[1] : "";
 169
 170             if(TYPE_TXT.equals(type)) {
 171                 return R.drawable.file_doc;
 172
 173             } else if(TYPE_IMAGE.equals(type)) {
 174                 return R.drawable.file_image;
 175
 176             } else if(TYPE_VIDEO.equals(type)) {
 177                 return R.drawable.file_movie;
 178
 179             } else if(TYPE_AUDIO.equals(type)) {
 180                 return R.drawable.file_sound;
 181
 182             } else if(TYPE_APPLICATION.equals(type)) {
 183
 184                 if (SUBTYPE_PDF.equals(subtype)) {
 185                     return R.drawable.file_pdf;
 186
 187                 } else if (SUBTYPE_XML.equals(subtype)) {
 188                     return R.drawable.file_doc;
 189
 190                 } else if (SUBTYPES_DOCUMENT_SET.contains(subtype)) {
 191                     return R.drawable.file_doc;
 192
 193                 } else if (SUBTYPES_SPREADSHEET_SET.contains(subtype)) {
 194                     return R.drawable.file_xls;
 195
 196                 } else if (SUBTYPES_PRESENTATION_SET.contains(subtype)) {
 197                     return R.drawable.file_ppt;
 198
 199                 } else if (SUBTYPES_COMPRESSED_SET.contains(subtype)) {
 200                     return R.drawable.file_zip;
 201
 202                 } else if (SUBTYPE_OCTET_STREAM.equals(subtype) ) {
 203                     if (getExtension(filename).equalsIgnoreCase(EXTENSION_RAR)) {
 204                         return R.drawable.file_zip;
 205
 206                     } else if (getExtension(filename).equalsIgnoreCase(EXTENSION_RTF)) {
 207                         return R.drawable.file_doc;
 208
 209                     } else if (getExtension(filename).equalsIgnoreCase(EXTENSION_3GP)) {
 210                         return R.drawable.file_movie;
 211
 212                     } else if ( getExtension(filename).equalsIgnoreCase(EXTENSION_PY) ||
 213                                 getExtension(filename).equalsIgnoreCase(EXTENSION_JS)) {
 214                         return R.drawable.file_doc;
 215                     }
 216                 }
 217             }
 218         }
 219
 220         // default icon
 221         return R.drawable.file;
 222     }
 223
 224
 225     private static String getExtension(String filename) {
 226         String extension = filename.substring(filename.lastIndexOf(".") + 1).toLowerCase();
 227         return extension;
 228     }
 229
 230     /**
 231      * Converts Unix time to human readable format
 232      * @param milliseconds that have passed since 01/01/1970
 233      * @return The human readable time for the users locale
 234      */
 235     public static String unixTimeToHumanReadable(long milliseconds) {
 236         Date date = new Date(milliseconds);
 237         DateFormat df = DateFormat.getDateTimeInstance();
 238         return df.format(date);
 239     }
 240
 241
 242     public static int getSeasonalIconId() {
 243         if (Calendar.getInstance().get(Calendar.DAY_OF_YEAR) >= 354 &&
 244                 MainApp.getAppContext().getString(R.string.app_name).equals(OWNCLOUD_APP_NAME)) {
 245             return R.drawable.winter_holidays_icon;
 246         } else {
 247             return R.drawable.icon;
 248         }
 249     }
 250
 251     /**
 252      * Converts an internationalized domain name (IDN) in an URL to and from ASCII/Unicode.
 253      * @param url the URL where the domain name should be converted
 254      * @param toASCII if true converts from Unicode to ASCII, if false converts from ASCII to Unicode
 255      * @return the URL containing the converted domain name
 256      */
 257     @TargetApi(Build.VERSION_CODES.GINGERBREAD)
 258     public static String convertIdn(String url, boolean toASCII) {
 259
 260         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
 261             // Find host name after '//' or '@'
 262             int hostStart = 0;
 263             if  (url.indexOf("//") != -1) {
 264                 hostStart = url.indexOf("//") + "//".length();
 265             } else if (url.indexOf("@") != -1) {
 266                 hostStart = url.indexOf("@") + "@".length();
 267             }
 268
 269             int hostEnd = url.substring(hostStart).indexOf("/");
 270             // Handle URL which doesn't have a path (path is implicitly '/')
 271             hostEnd = (hostEnd == -1 ? url.length() : hostStart + hostEnd);
 272
 273             String host = url.substring(hostStart, hostEnd);
 274             host = (toASCII ? IDN.toASCII(host) : IDN.toUnicode(host));
 275
 276             return url.substring(0, hostStart) + host + url.substring(hostEnd);
 277         } else {
 278             return url;
 279         }
 280     }
 281
 282     /**
 283      * Get the file extension if it is on path as type "content://.../DocInfo.doc"
 284      * @param filepath: Content Uri converted to string format
 285      * @return String: fileExtension (type '.pdf'). Empty if no extension
 286      */
 287     public static String getComposedFileExtension(String filepath) {
 288         String fileExtension = "";
 289         String fileNameInContentUri = filepath.substring(filepath.lastIndexOf("/"));
 290
 291         // Check if extension is included in uri
 292         int pos = fileNameInContentUri.lastIndexOf('.');
 293         if (pos >= 0) {
 294             fileExtension = fileNameInContentUri.substring(pos);
 295         }
 296         return fileExtension;
 297     }
 298
 299     @SuppressWarnings("deprecation")
 300     public static CharSequence getRelativeDateTimeString (
 301             Context c, long time, long minResolution, long transitionResolution, int flags
 302             ){
 303
 304         CharSequence dateString = "";
 305
 306         // in Future
 307         if (time > System.currentTimeMillis()){
 308             return DisplayUtils.unixTimeToHumanReadable(time);
 309         }
 310         // < 60 seconds -> seconds ago
 311         else if ((System.currentTimeMillis() - time) < 60 * 1000) {
 312             return c.getString(R.string.file_list_seconds_ago);
 313         } else {
 314             // Workaround 2.x bug (see https://github.com/owncloud/android/issues/716)
 315             if (    Build.VERSION.SDK_INT <= Build.VERSION_CODES.HONEYCOMB &&
 316                     (System.currentTimeMillis() - time) > 24 * 60 * 60 * 1000   ) {
 317                 Date date = new Date(time);
 318                 date.setHours(0);
 319                 date.setMinutes(0);
 320                 date.setSeconds(0);
 321                 dateString = DateUtils.getRelativeDateTimeString(
 322                         c, date.getTime(), minResolution, transitionResolution, flags
 323                 );
 324             } else {
 325                 dateString = DateUtils.getRelativeDateTimeString(c, time, minResolution, transitionResolution, flags);
 326             }
 327         }
 328
 329         return dateString.toString().split(",")[0];
 330     }
 331
 332     /**
 333      * Update the passed path removing the last "/" if it is not the root folder
 334      * @param path
 335      */
 336     public static String getPathWithoutLastSlash(String path) {
 337
 338         // Remove last slash from path
 339         if (path.length() > 1 && path.charAt(path.length()-1) == OCFile.PATH_SEPARATOR.charAt(0)) {
 340             path = path.substring(0, path.length()-1);
 341         }
 342         return path;
 343     }
 344
 345 }