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