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.DateUtils;
  33
  34 import com.owncloud.android.MainApp;
  35 import com.owncloud.android.R;
  36
  37 /**
  38  * A helper class for some string operations.
  39  *
  40  * @author Bartek Przybylski
  41  * @author David A. Velasco
  42  */
  43 public class DisplayUtils {
  44
  45     private static final String OWNCLOUD_APP_NAME = "ownCloud";
  46
  47     //private static String TAG = DisplayUtils.class.getSimpleName();
  48
  49     private static final String[] sizeSuffixes = { "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };
  50
  51     private static HashMap<String, String> mimeType2HUmanReadable;
  52     static {
  53         mimeType2HUmanReadable = new HashMap<String, String>();
  54         // images
  55         mimeType2HUmanReadable.put("image/jpeg", "JPEG image");
  56         mimeType2HUmanReadable.put("image/jpg", "JPEG image");
  57         mimeType2HUmanReadable.put("image/png", "PNG image");
  58         mimeType2HUmanReadable.put("image/bmp", "Bitmap image");
  59         mimeType2HUmanReadable.put("image/gif", "GIF image");
  60         mimeType2HUmanReadable.put("image/svg+xml", "JPEG image");
  61         mimeType2HUmanReadable.put("image/tiff", "TIFF image");
  62         // music
  63         mimeType2HUmanReadable.put("audio/mpeg", "MP3 music file");
  64         mimeType2HUmanReadable.put("application/ogg", "OGG music file");
  65
  66     }
  67
  68     private static final String TYPE_APPLICATION = "application";
  69     private static final String TYPE_AUDIO = "audio";
  70     private static final String TYPE_IMAGE = "image";
  71     private static final String TYPE_TXT = "text";
  72     private static final String TYPE_VIDEO = "video";
  73
  74     private static final String SUBTYPE_PDF = "pdf";
  75     private static final String[] SUBTYPES_DOCUMENT = { "msword",
  76                                                         "vnd.openxmlformats-officedocument.wordprocessingml.document",
  77                                                         "vnd.oasis.opendocument.text",
  78                                                         "rtf"
  79                                                         };
  80     private static Set<String> SUBTYPES_DOCUMENT_SET = new HashSet<String>(Arrays.asList(SUBTYPES_DOCUMENT));
  81     private static final String[] SUBTYPES_SPREADSHEET = { "msexcel",
  82                                                            "vnd.openxmlformats-officedocument.spreadsheetml.sheet",
  83                                                            "vnd.oasis.opendocument.spreadsheet"
  84                                                            };
  85     private static Set<String> SUBTYPES_SPREADSHEET_SET = new HashSet<String>(Arrays.asList(SUBTYPES_SPREADSHEET));
  86     private static final String[] SUBTYPES_PRESENTATION = { "mspowerpoint",
  87                                                             "vnd.openxmlformats-officedocument.presentationml.presentation",
  88                                                             "vnd.oasis.opendocument.presentation"
  89                                                             };
  90     private static Set<String> SUBTYPES_PRESENTATION_SET = new HashSet<String>(Arrays.asList(SUBTYPES_PRESENTATION));
  91     private static final String[] SUBTYPES_COMPRESSED = {"x-tar", "x-gzip", "zip"};
  92     private static final Set<String> SUBTYPES_COMPRESSED_SET = new HashSet<String>(Arrays.asList(SUBTYPES_COMPRESSED));
  93     private static final String SUBTYPE_OCTET_STREAM = "octet-stream";
  94     private static final String EXTENSION_RAR = "rar";
  95     private static final String EXTENSION_RTF = "rtf";
  96     private static final String EXTENSION_3GP = "3gp";
  97
  98     /**
  99      * Converts the file size in bytes to human readable output.
 100      *
 101      * @param bytes Input file size
 102      * @return Like something readable like "12 MB"
 103      */
 104     public static String bytesToHumanReadable(long bytes) {
 105         double result = bytes;
 106         int attachedsuff = 0;
 107         while (result > 1024 && attachedsuff < sizeSuffixes.length) {
 108             result /= 1024.;
 109             attachedsuff++;
 110         }
 111         result = ((int) (result * 100)) / 100.;
 112         return result + " " + sizeSuffixes[attachedsuff];
 113     }
 114
 115     /**
 116      * Removes special HTML entities from a string
 117      *
 118      * @param s Input string
 119      * @return A cleaned version of the string
 120      */
 121     public static String HtmlDecode(String s) {
 122         /*
 123          * TODO: Perhaps we should use something more proven like:
 124          * http://commons.apache.org/lang/api-2.6/org/apache/commons/lang/StringEscapeUtils.html#unescapeHtml%28java.lang.String%29
 125          */
 126
 127         String ret = "";
 128         for (int i = 0; i < s.length(); ++i) {
 129             if (s.charAt(i) == '%') {
 130                 ret += (char) Integer.parseInt(s.substring(i + 1, i + 3), 16);
 131                 i += 2;
 132             } else {
 133                 ret += s.charAt(i);
 134             }
 135         }
 136         return ret;
 137     }
 138
 139     /**
 140      * Converts MIME types like "image/jpg" to more end user friendly output
 141      * like "JPG image".
 142      *
 143      * @param mimetype MIME type to convert
 144      * @return A human friendly version of the MIME type
 145      */
 146     public static String convertMIMEtoPrettyPrint(String mimetype) {
 147         if (mimeType2HUmanReadable.containsKey(mimetype)) {
 148             return mimeType2HUmanReadable.get(mimetype);
 149         }
 150         if (mimetype.split("/").length >= 2)
 151             return mimetype.split("/")[1].toUpperCase() + " file";
 152         return "Unknown type";
 153     }
 154
 155
 156     /**
 157      * Returns the resource identifier of an image resource to use as icon associated to a
 158      * known MIME type.
 159      *
 160      * @param mimetype      MIME type string.
 161      * @param filename      name, with extension
 162      * @return              Resource identifier of an image resource.
 163      */
 164     public static int getResourceId(String mimetype, String filename) {
 165
 166         if (mimetype == null || "DIR".equals(mimetype)) {
 167             return R.drawable.ic_menu_archive;
 168
 169         } else {
 170             String [] parts = mimetype.split("/");
 171             String type = parts[0];
 172             String subtype = (parts.length > 1) ? parts[1] : "";
 173
 174             if(TYPE_TXT.equals(type)) {
 175                 return R.drawable.file_doc;
 176
 177             } else if(TYPE_IMAGE.equals(type)) {
 178                 return R.drawable.file_image;
 179
 180             } else if(TYPE_VIDEO.equals(type)) {
 181                 return R.drawable.file_movie;
 182
 183             } else if(TYPE_AUDIO.equals(type)) {
 184                 return R.drawable.file_sound;
 185
 186             } else if(TYPE_APPLICATION.equals(type)) {
 187
 188                 if (SUBTYPE_PDF.equals(subtype)) {
 189                     return R.drawable.file_pdf;
 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                     }
 214                 }
 215             }
 216         }
 217
 218         // default icon
 219         return R.drawable.file;
 220     }
 221
 222
 223     private static String getExtension(String filename) {
 224         String extension = filename.substring(filename.lastIndexOf(".") + 1);
 225
 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         return date.toLocaleString();
 237     }
 238
 239
 240     public static int getSeasonalIconId() {
 241         if (Calendar.getInstance().get(Calendar.DAY_OF_YEAR) >= 354 &&
 242                 MainApp.getAppContext().getString(R.string.app_name).equals(OWNCLOUD_APP_NAME)) {
 243             return R.drawable.winter_holidays_icon;
 244         } else {
 245             return R.drawable.icon;
 246         }
 247     }
 248
 249     /**
 250      * Converts an internationalized domain name (IDN) in an URL to and from ASCII/Unicode.
 251      * @param url the URL where the domain name should be converted
 252      * @param toASCII if true converts from Unicode to ASCII, if false converts from ASCII to Unicode
 253      * @return the URL containing the converted domain name
 254      */
 255     @TargetApi(Build.VERSION_CODES.GINGERBREAD)
 256     public static String convertIdn(String url, boolean toASCII) {
 257
 258         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
 259             // Find host name after '//' or '@'
 260             int hostStart = 0;
 261             if  (url.indexOf("//") != -1) {
 262                 hostStart = url.indexOf("//") + "//".length();
 263             } else if (url.indexOf("@") != -1) {
 264                 hostStart = url.indexOf("@") + "@".length();
 265             }
 266
 267             int hostEnd = url.substring(hostStart).indexOf("/");
 268             // Handle URL which doesn't have a path (path is implicitly '/')
 269             hostEnd = (hostEnd == -1 ? url.length() : hostStart + hostEnd);
 270
 271             String host = url.substring(hostStart, hostEnd);
 272             host = (toASCII ? IDN.toASCII(host) : IDN.toUnicode(host));
 273
 274             return url.substring(0, hostStart) + host + url.substring(hostEnd);
 275         } else {
 276             return url;
 277         }
 278     }
 279
 280     /**
 281      * Get the file extension if it is on path as type "content://.../DocInfo.doc"
 282      * @param filepath: Content Uri converted to string format
 283      * @return String: fileExtension (type '.pdf'). Empty if no extension
 284      */
 285     public static String getComposedFileExtension(String filepath) {
 286         String fileExtension = "";
 287         String fileNameInContentUri = filepath.substring(filepath.lastIndexOf("/"));
 288
 289         // Check if extension is included in uri
 290         int pos = fileNameInContentUri.lastIndexOf('.');
 291         if (pos >= 0) {
 292             fileExtension = fileNameInContentUri.substring(pos);
 293         }
 294         return fileExtension;
 295     }
 296
 297     public static CharSequence getRelativeDateTimeString(Context c, long time, long minResolution, long transitionResolution, int flags){
 298         CharSequence dateString = "";
 299
 300         // in Future
 301         if (time > System.currentTimeMillis()){
 302             return DisplayUtils.unixTimeToHumanReadable(time);
 303         }
 304         // < 60 seconds -> seconds ago
 305         else if ((System.currentTimeMillis() - time) < 60 * 1000) {
 306             return c.getString(R.string.file_list_seconds_ago);
 307         } else {
 308             // Workaround 2.x bug (see https://github.com/owncloud/android/issues/716)
 309             if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.HONEYCOMB && (System.currentTimeMillis() - time) > 24 * 60 * 60 * 1000){
 310                 Date date = new Date(time);
 311                 date.setHours(0);
 312                 date.setMinutes(0);
 313                 date.setSeconds(0);
 314                 dateString = DateUtils.getRelativeDateTimeString(c, date.getTime(), minResolution, transitionResolution, flags);
 315             } else {
 316                 dateString = DateUtils.getRelativeDateTimeString(c, time, minResolution, transitionResolution, flags);
 317             }
 318         }
 319
 320         return dateString.toString().split(",")[0];
 321     }
 322 }