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.util.Arrays;
  23 import java.util.Calendar;
  24 import java.util.Date;
  25 import java.util.HashMap;
  26 import java.util.HashSet;
  27 import java.util.Set;
  28
  29 import android.annotation.TargetApi;
  30 import android.content.Context;
  31 import android.os.Build;
  32 import android.text.format.DateFormat;
  33 import android.text.format.DateUtils;
  34
  35 import com.owncloud.android.MainApp;
  36 import com.owncloud.android.R;
  37
  38 /**
  39  * A helper class for some string operations.
  40  *
  41  * @author Bartek Przybylski
  42  * @author David A. Velasco
  43  */
  44 public class DisplayUtils {
  45
  46     private static final String OWNCLOUD_APP_NAME = "ownCloud";
  47
  48     //private static String TAG = DisplayUtils.class.getSimpleName();
  49
  50     private static final String[] sizeSuffixes = { "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };
  51
  52     private static HashMap<String, String> mimeType2HUmanReadable;
  53     static {
  54         mimeType2HUmanReadable = new HashMap<String, String>();
  55         // images
  56         mimeType2HUmanReadable.put("image/jpeg", "JPEG image");
  57         mimeType2HUmanReadable.put("image/jpg", "JPEG image");
  58         mimeType2HUmanReadable.put("image/png", "PNG image");
  59         mimeType2HUmanReadable.put("image/bmp", "Bitmap image");
  60         mimeType2HUmanReadable.put("image/gif", "GIF image");
  61         mimeType2HUmanReadable.put("image/svg+xml", "JPEG image");
  62         mimeType2HUmanReadable.put("image/tiff", "TIFF image");
  63         // music
  64         mimeType2HUmanReadable.put("audio/mpeg", "MP3 music file");
  65         mimeType2HUmanReadable.put("application/ogg", "OGG music file");
  66
  67     }
  68
  69     private static final String TYPE_APPLICATION = "application";
  70     private static final String TYPE_AUDIO = "audio";
  71     private static final String TYPE_IMAGE = "image";
  72     private static final String TYPE_TXT = "text";
  73     private static final String TYPE_VIDEO = "video";
  74
  75     private static final String SUBTYPE_PDF = "pdf";
  76     private static final String[] SUBTYPES_DOCUMENT = { "msword",
  77                                                         "vnd.openxmlformats-officedocument.wordprocessingml.document",
  78                                                         "vnd.oasis.opendocument.text",
  79                                                         "rtf"
  80                                                         };
  81     private static Set<String> SUBTYPES_DOCUMENT_SET = new HashSet<String>(Arrays.asList(SUBTYPES_DOCUMENT));
  82     private static final String[] SUBTYPES_SPREADSHEET = { "msexcel",
  83                                                            "vnd.openxmlformats-officedocument.spreadsheetml.sheet",
  84                                                            "vnd.oasis.opendocument.spreadsheet"
  85                                                            };
  86     private static Set<String> SUBTYPES_SPREADSHEET_SET = new HashSet<String>(Arrays.asList(SUBTYPES_SPREADSHEET));
  87     private static final String[] SUBTYPES_PRESENTATION = { "mspowerpoint",
  88                                                             "vnd.openxmlformats-officedocument.presentationml.presentation",
  89                                                             "vnd.oasis.opendocument.presentation"
  90                                                             };
  91     private static Set<String> SUBTYPES_PRESENTATION_SET = new HashSet<String>(Arrays.asList(SUBTYPES_PRESENTATION));
  92     private static final String[] SUBTYPES_COMPRESSED = {"x-tar", "x-gzip", "zip"};
  93     private static final Set<String> SUBTYPES_COMPRESSED_SET = new HashSet<String>(Arrays.asList(SUBTYPES_COMPRESSED));
  94     private static final String SUBTYPE_OCTET_STREAM = "octet-stream";
  95     private static final String EXTENSION_RAR = "rar";
  96     private static final String EXTENSION_RTF = "rtf";
  97     private static final String EXTENSION_3GP = "3gp";
  98
  99     /**
 100      * Converts the file size in bytes to human readable output.
 101      *
 102      * @param bytes Input file size
 103      * @return Like something readable like "12 MB"
 104      */
 105     public static String bytesToHumanReadable(long bytes) {
 106         double result = bytes;
 107         int attachedsuff = 0;
 108         while (result > 1024 && attachedsuff < sizeSuffixes.length) {
 109             result /= 1024.;
 110             attachedsuff++;
 111         }
 112         result = ((int) (result * 100)) / 100.;
 113         return result + " " + sizeSuffixes[attachedsuff];
 114     }
 115
 116     /**
 117      * Removes special HTML entities from a string
 118      *
 119      * @param s Input string
 120      * @return A cleaned version of the string
 121      */
 122     public static String HtmlDecode(String s) {
 123         /*
 124          * TODO: Perhaps we should use something more proven like:
 125          * http://commons.apache.org/lang/api-2.6/org/apache/commons/lang/StringEscapeUtils.html#unescapeHtml%28java.lang.String%29
 126          */
 127
 128         String ret = "";
 129         for (int i = 0; i < s.length(); ++i) {
 130             if (s.charAt(i) == '%') {
 131                 ret += (char) Integer.parseInt(s.substring(i + 1, i + 3), 16);
 132                 i += 2;
 133             } else {
 134                 ret += s.charAt(i);
 135             }
 136         }
 137         return ret;
 138     }
 139
 140     /**
 141      * Converts MIME types like "image/jpg" to more end user friendly output
 142      * like "JPG image".
 143      *
 144      * @param mimetype MIME type to convert
 145      * @return A human friendly version of the MIME type
 146      */
 147     public static String convertMIMEtoPrettyPrint(String mimetype) {
 148         if (mimeType2HUmanReadable.containsKey(mimetype)) {
 149             return mimeType2HUmanReadable.get(mimetype);
 150         }
 151         if (mimetype.split("/").length >= 2)
 152             return mimetype.split("/")[1].toUpperCase() + " file";
 153         return "Unknown type";
 154     }
 155
 156
 157     /**
 158      * Returns the resource identifier of an image resource to use as icon associated to a
 159      * known MIME type.
 160      *
 161      * @param mimetype      MIME type string.
 162      * @param filename      name, with extension
 163      * @return              Resource identifier of an image resource.
 164      */
 165     public static int getResourceId(String mimetype, String filename) {
 166
 167         if (mimetype == null || "DIR".equals(mimetype)) {
 168             return R.drawable.ic_menu_archive;
 169
 170         } else {
 171             String [] parts = mimetype.split("/");
 172             String type = parts[0];
 173             String subtype = (parts.length > 1) ? parts[1] : "";
 174
 175             if(TYPE_TXT.equals(type)) {
 176                 return R.drawable.file_doc;
 177
 178             } else if(TYPE_IMAGE.equals(type)) {
 179                 return R.drawable.file_image;
 180
 181             } else if(TYPE_VIDEO.equals(type)) {
 182                 return R.drawable.file_movie;
 183
 184             } else if(TYPE_AUDIO.equals(type)) {
 185                 return R.drawable.file_sound;
 186
 187             } else if(TYPE_APPLICATION.equals(type)) {
 188
 189                 if (SUBTYPE_PDF.equals(subtype)) {
 190                     return R.drawable.file_pdf;
 191
 192                 } else if (SUBTYPES_DOCUMENT_SET.contains(subtype)) {
 193                     return R.drawable.file_doc;
 194
 195                 } else if (SUBTYPES_SPREADSHEET_SET.contains(subtype)) {
 196                     return R.drawable.file_xls;
 197
 198                 } else if (SUBTYPES_PRESENTATION_SET.contains(subtype)) {
 199                     return R.drawable.file_ppt;
 200
 201                 } else if (SUBTYPES_COMPRESSED_SET.contains(subtype)) {
 202                     return R.drawable.file_zip;
 203
 204                 } else if (SUBTYPE_OCTET_STREAM.equals(subtype) ) {
 205                     if (getExtension(filename).equalsIgnoreCase(EXTENSION_RAR)) {
 206                         return R.drawable.file_zip;
 207
 208                     } else if (getExtension(filename).equalsIgnoreCase(EXTENSION_RTF)) {
 209                         return R.drawable.file_doc;
 210
 211                     } else if (getExtension(filename).equalsIgnoreCase(EXTENSION_3GP)) {
 212                         return R.drawable.file_movie;
 213
 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);
 226
 227         return extension;
 228     }
 229
 230     /**
 231      * Converts Unix time to human readable format
 232      * @param miliseconds 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         return date.toLocaleString();
 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     public static CharSequence getRelativeDateTimeString(Context c, long time, long minResolution, long transitionResolution, int flags){
 282         CharSequence dateString = "";
 283
 284         // in Future
 285         if (time > System.currentTimeMillis()){
 286             return DisplayUtils.unixTimeToHumanReadable(time);
 287         }
 288         // < 60 seconds -> seconds ago
 289         else if ((System.currentTimeMillis() - time) < 60 * 1000) {
 290             return c.getString(R.string.file_list_seconds_ago);
 291         } else {
 292             // Workaround 2.x bug
 293             if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.HONEYCOMB && (System.currentTimeMillis() - time) > 24 * 60 * 60 * 1000){
 294                 Date date = new Date(time);
 295                 date.setHours(0);
 296                 date.setMinutes(0);
 297                 date.setSeconds(0);
 298                 dateString = DateUtils.getRelativeDateTimeString(c, date.getTime(), minResolution, transitionResolution, flags);
 299             } else {
 300                 dateString = DateUtils.getRelativeDateTimeString(c, time, minResolution, transitionResolution, flags);
 301             }
 302         }
 303
 304         return dateString.toString().split(",")[0];
 305     }
 306 }