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.app.Activity;
  37 import android.content.Context;
  38 import android.graphics.Point;
  39 import android.os.Build;
  40 import android.text.format.DateUtils;
  41 import android.view.Display;
  42 import android.webkit.MimeTypeMap;
  43
  44 import com.owncloud.android.MainApp;
  45 import com.owncloud.android.R;
  46 import com.owncloud.android.datamodel.OCFile;
  47
  48 /**
  49  * A helper class for some string operations.
  50  */
  51 public class DisplayUtils {
  52
  53     private static final String OWNCLOUD_APP_NAME = "ownCloud";
  54
  55     //private static String TAG = DisplayUtils.class.getSimpleName();
  56
  57     private static final String[] sizeSuffixes = { "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };
  58
  59     private static HashMap<String, String> mimeType2HUmanReadable;
  60     static {
  61         mimeType2HUmanReadable = new HashMap<String, String>();
  62         // images
  63         mimeType2HUmanReadable.put("image/jpeg", "JPEG image");
  64         mimeType2HUmanReadable.put("image/jpg", "JPEG image");
  65         mimeType2HUmanReadable.put("image/png", "PNG image");
  66         mimeType2HUmanReadable.put("image/bmp", "Bitmap image");
  67         mimeType2HUmanReadable.put("image/gif", "GIF image");
  68         mimeType2HUmanReadable.put("image/svg+xml", "JPEG image");
  69         mimeType2HUmanReadable.put("image/tiff", "TIFF image");
  70         // music
  71         mimeType2HUmanReadable.put("audio/mpeg", "MP3 music file");
  72         mimeType2HUmanReadable.put("application/ogg", "OGG music file");
  73
  74     }
  75
  76     private static final String TYPE_APPLICATION = "application";
  77     private static final String TYPE_AUDIO = "audio";
  78     private static final String TYPE_IMAGE = "image";
  79     private static final String TYPE_TXT = "text";
  80     private static final String TYPE_VIDEO = "video";
  81
  82     private static final String SUBTYPE_PDF = "pdf";
  83     private static final String SUBTYPE_XML = "xml";
  84     private static final String[] SUBTYPES_DOCUMENT = {
  85         "msword",
  86         "vnd.openxmlformats-officedocument.wordprocessingml.document",
  87         "vnd.oasis.opendocument.text",
  88         "rtf",
  89         "javascript"
  90     };
  91     private static Set<String> SUBTYPES_DOCUMENT_SET = new HashSet<String>(Arrays.asList(SUBTYPES_DOCUMENT));
  92     private static final String[] SUBTYPES_SPREADSHEET = {
  93         "msexcel",
  94         "vnd.ms-excel",
  95         "vnd.openxmlformats-officedocument.spreadsheetml.sheet",
  96         "vnd.oasis.opendocument.spreadsheet"
  97     };
  98     private static Set<String> SUBTYPES_SPREADSHEET_SET = new HashSet<String>(Arrays.asList(SUBTYPES_SPREADSHEET));
  99     private static final String[] SUBTYPES_PRESENTATION = {
 100         "mspowerpoint",
 101         "vnd.ms-powerpoint",
 102         "vnd.openxmlformats-officedocument.presentationml.presentation",
 103         "vnd.oasis.opendocument.presentation"
 104     };
 105     private static Set<String> SUBTYPES_PRESENTATION_SET = new HashSet<String>(Arrays.asList(SUBTYPES_PRESENTATION));
 106     private static final String[] SUBTYPES_COMPRESSED = {"x-tar", "x-gzip", "zip"};
 107     private static final Set<String> SUBTYPES_COMPRESSED_SET = new HashSet<String>(Arrays.asList(SUBTYPES_COMPRESSED));
 108     private static final String SUBTYPE_OCTET_STREAM = "octet-stream";
 109     private static final String EXTENSION_RAR = "rar";
 110     private static final String EXTENSION_RTF = "rtf";
 111     private static final String EXTENSION_3GP = "3gp";
 112     private static final String EXTENSION_PY = "py";
 113     private static final String EXTENSION_JS = "js";
 114
 115     /**
 116      * Converts the file size in bytes to human readable output.
 117      *
 118      * @param bytes Input file size
 119      * @return Like something readable like "12 MB"
 120      */
 121     public static String bytesToHumanReadable(long bytes) {
 122         double result = bytes;
 123         int attachedsuff = 0;
 124         while (result > 1024 && attachedsuff < sizeSuffixes.length) {
 125             result /= 1024.;
 126             attachedsuff++;
 127         }
 128         result = ((int) (result * 100)) / 100.;
 129         return result + " " + sizeSuffixes[attachedsuff];
 130     }
 131
 132     /**
 133      * Converts MIME types like "image/jpg" to more end user friendly output
 134      * like "JPG image".
 135      *
 136      * @param mimetype MIME type to convert
 137      * @return A human friendly version of the MIME type
 138      */
 139     public static String convertMIMEtoPrettyPrint(String mimetype) {
 140         if (mimeType2HUmanReadable.containsKey(mimetype)) {
 141             return mimeType2HUmanReadable.get(mimetype);
 142         }
 143         if (mimetype.split("/").length >= 2)
 144             return mimetype.split("/")[1].toUpperCase() + " file";
 145         return "Unknown type";
 146     }
 147
 148
 149     /**
 150      * Returns the resource identifier of an image to use as icon associated to a known MIME type.
 151      *
 152      * @param mimetype      MIME type string; if NULL, the method tries to guess it from the extension in filename
 153      * @param filename      Name, with extension.
 154      * @return              Identifier of an image resource.
 155      */
 156     public static int getFileTypeIconId(String mimetype, String filename) {
 157
 158         if (mimetype == null) {
 159             String fileExtension = getExtension(filename);
 160             mimetype = MimeTypeMap.getSingleton().getMimeTypeFromExtension(fileExtension);
 161             if (mimetype == null) {
 162                 mimetype = TYPE_APPLICATION + "/" + SUBTYPE_OCTET_STREAM;
 163             }
 164         }
 165
 166         if ("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 (SUBTYPE_XML.equals(subtype)) {
 192                     return R.drawable.file_doc;
 193
 194                 } else if (SUBTYPES_DOCUMENT_SET.contains(subtype)) {
 195                     return R.drawable.file_doc;
 196
 197                 } else if (SUBTYPES_SPREADSHEET_SET.contains(subtype)) {
 198                     return R.drawable.file_xls;
 199
 200                 } else if (SUBTYPES_PRESENTATION_SET.contains(subtype)) {
 201                     return R.drawable.file_ppt;
 202
 203                 } else if (SUBTYPES_COMPRESSED_SET.contains(subtype)) {
 204                     return R.drawable.file_zip;
 205
 206                 } else if (SUBTYPE_OCTET_STREAM.equals(subtype) ) {
 207                     if (getExtension(filename).equalsIgnoreCase(EXTENSION_RAR)) {
 208                         return R.drawable.file_zip;
 209
 210                     } else if (getExtension(filename).equalsIgnoreCase(EXTENSION_RTF)) {
 211                         return R.drawable.file_doc;
 212
 213                     } else if (getExtension(filename).equalsIgnoreCase(EXTENSION_3GP)) {
 214                         return R.drawable.file_movie;
 215
 216                     } else if ( getExtension(filename).equalsIgnoreCase(EXTENSION_PY) ||
 217                                 getExtension(filename).equalsIgnoreCase(EXTENSION_JS)) {
 218                         return R.drawable.file_doc;
 219                     }
 220                 }
 221             }
 222         }
 223
 224         // default icon
 225         return R.drawable.file;
 226     }
 227
 228
 229     private static String getExtension(String filename) {
 230         String extension = filename.substring(filename.lastIndexOf(".") + 1).toLowerCase();
 231         return extension;
 232     }
 233
 234     /**
 235      * Converts Unix time to human readable format
 236      * @param milliseconds that have passed since 01/01/1970
 237      * @return The human readable time for the users locale
 238      */
 239     public static String unixTimeToHumanReadable(long milliseconds) {
 240         Date date = new Date(milliseconds);
 241         DateFormat df = DateFormat.getDateTimeInstance();
 242         return df.format(date);
 243     }
 244
 245
 246     public static int getSeasonalIconId() {
 247         if (Calendar.getInstance().get(Calendar.DAY_OF_YEAR) >= 354 &&
 248                 MainApp.getAppContext().getString(R.string.app_name).equals(OWNCLOUD_APP_NAME)) {
 249             return R.drawable.winter_holidays_icon;
 250         } else {
 251             return R.drawable.icon;
 252         }
 253     }
 254
 255     /**
 256      * Converts an internationalized domain name (IDN) in an URL to and from ASCII/Unicode.
 257      * @param url the URL where the domain name should be converted
 258      * @param toASCII if true converts from Unicode to ASCII, if false converts from ASCII to Unicode
 259      * @return the URL containing the converted domain name
 260      */
 261     @TargetApi(Build.VERSION_CODES.GINGERBREAD)
 262     public static String convertIdn(String url, boolean toASCII) {
 263
 264         String urlNoDots = url;
 265         String dots="";
 266         while (urlNoDots.startsWith(".")) {
 267             urlNoDots = url.substring(1);
 268             dots = dots + ".";
 269         }
 270
 271         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
 272             // Find host name after '//' or '@'
 273             int hostStart = 0;
 274             if  (urlNoDots.indexOf("//") != -1) {
 275                 hostStart = url.indexOf("//") + "//".length();
 276             } else if (url.indexOf("@") != -1) {
 277                 hostStart = url.indexOf("@") + "@".length();
 278             }
 279
 280             int hostEnd = url.substring(hostStart).indexOf("/");
 281             // Handle URL which doesn't have a path (path is implicitly '/')
 282             hostEnd = (hostEnd == -1 ? urlNoDots.length() : hostStart + hostEnd);
 283
 284             String host = urlNoDots.substring(hostStart, hostEnd);
 285             host = (toASCII ? IDN.toASCII(host) : IDN.toUnicode(host));
 286
 287             return dots + urlNoDots.substring(0, hostStart) + host + urlNoDots.substring(hostEnd);
 288         } else {
 289             return dots + url;
 290         }
 291     }
 292
 293     /**
 294      * Get the file extension if it is on path as type "content://.../DocInfo.doc"
 295      * @param filepath: Content Uri converted to string format
 296      * @return String: fileExtension (type '.pdf'). Empty if no extension
 297      */
 298     public static String getComposedFileExtension(String filepath) {
 299         String fileExtension = "";
 300         String fileNameInContentUri = filepath.substring(filepath.lastIndexOf("/"));
 301
 302         // Check if extension is included in uri
 303         int pos = fileNameInContentUri.lastIndexOf('.');
 304         if (pos >= 0) {
 305             fileExtension = fileNameInContentUri.substring(pos);
 306         }
 307         return fileExtension;
 308     }
 309
 310     @SuppressWarnings("deprecation")
 311     public static CharSequence getRelativeDateTimeString (
 312             Context c, long time, long minResolution, long transitionResolution, int flags
 313             ){
 314
 315         CharSequence dateString = "";
 316
 317         // in Future
 318         if (time > System.currentTimeMillis()){
 319             return DisplayUtils.unixTimeToHumanReadable(time);
 320         }
 321         // < 60 seconds -> seconds ago
 322         else if ((System.currentTimeMillis() - time) < 60 * 1000) {
 323             return c.getString(R.string.file_list_seconds_ago);
 324         } else {
 325             // Workaround 2.x bug (see https://github.com/owncloud/android/issues/716)
 326             if (    Build.VERSION.SDK_INT <= Build.VERSION_CODES.HONEYCOMB &&
 327                     (System.currentTimeMillis() - time) > 24 * 60 * 60 * 1000   ) {
 328                 Date date = new Date(time);
 329                 date.setHours(0);
 330                 date.setMinutes(0);
 331                 date.setSeconds(0);
 332                 dateString = DateUtils.getRelativeDateTimeString(
 333                         c, date.getTime(), minResolution, transitionResolution, flags
 334                 );
 335             } else {
 336                 dateString = DateUtils.getRelativeDateTimeString(c, time, minResolution, transitionResolution, flags);
 337             }
 338         }
 339
 340         return dateString.toString().split(",")[0];
 341     }
 342
 343     /**
 344      * Update the passed path removing the last "/" if it is not the root folder
 345      * @param path
 346      */
 347     public static String getPathWithoutLastSlash(String path) {
 348
 349         // Remove last slash from path
 350         if (path.length() > 1 && path.charAt(path.length()-1) == OCFile.PATH_SEPARATOR.charAt(0)) {
 351             path = path.substring(0, path.length()-1);
 352         }
 353         return path;
 354     }
 355
 356
 357     /**
 358      * Gets the screen size in pixels in a backwards compatible way
 359      *
 360      * @param caller        Activity calling; needed to get access to the {@link android.view.WindowManager}
 361      * @return              Size in pixels of the screen, or default {@link Point} if caller is null
 362      */
 363     public static Point getScreenSize(Activity caller) {
 364         Point size = new Point();
 365         if (caller != null) {
 366             Display display = caller.getWindowManager().getDefaultDisplay();
 367             if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB_MR2) {
 368                 display.getSize(size);
 369             } else {
 370                 size.set(display.getWidth(), display.getHeight());
 371             }
 372         }
 373         return size;
 374     }
 375
 376 }