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 android.annotation.TargetApi;
  26 import android.app.Activity;
  27 import android.content.Context;
  28 import android.graphics.Point;
  29 import android.graphics.PorterDuff;
  30 import android.os.Build;
  31 import android.text.format.DateUtils;
  32 import android.view.Display;
  33 import android.widget.ProgressBar;
  34 import android.widget.SeekBar;
  35
  36 import com.owncloud.android.MainApp;
  37 import com.owncloud.android.R;
  38 import com.owncloud.android.datamodel.OCFile;
  39
  40 import java.math.BigDecimal;
  41 import java.net.IDN;
  42 import java.text.DateFormat;
  43 import java.util.Calendar;
  44 import java.util.Date;
  45 import java.util.HashMap;
  46 import java.util.Map;
  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 final String[] sizeSuffixes = { "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };
  56     private static final int[] sizeScales = { 0, 0, 0, 1, 1, 2, 2, 2, 2 };
  57
  58     private static Map<String, String> mimeType2HumanReadable;
  59
  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      * Converts the file size in bytes to human readable output.
  77      * <ul>
  78      *     <li>appends a size suffix, e.g. B, KB, MB etc.</li>
  79      *     <li>rounds the size based on the suffix to 0,1 or 2 decimals</li>
  80      * </ul>
  81      *
  82      * @param bytes Input file size
  83      * @return Like something readable like "12 MB"
  84      */
  85     public static String bytesToHumanReadable(long bytes) {
  86         double result = bytes;
  87         int attachedSuff = 0;
  88         while (result > 1024 && attachedSuff < sizeSuffixes.length) {
  89             result /= 1024.;
  90             attachedSuff++;
  91         }
  92
  93         return new BigDecimal(result).setScale(
  94                 sizeScales[attachedSuff], BigDecimal.ROUND_HALF_UP) + " " + sizeSuffixes[attachedSuff];
  95     }
  96
  97     /**
  98      * Converts MIME types like "image/jpg" to more end user friendly output
  99      * like "JPG image".
 100      *
 101      * @param mimetype MIME type to convert
 102      * @return A human friendly version of the MIME type
 103      */
 104     public static String convertMIMEtoPrettyPrint(String mimetype) {
 105         if (mimeType2HumanReadable.containsKey(mimetype)) {
 106             return mimeType2HumanReadable.get(mimetype);
 107         }
 108         if (mimetype.split("/").length >= 2)
 109             return mimetype.split("/")[1].toUpperCase() + " file";
 110         return "Unknown type";
 111     }
 112
 113     /**
 114      * Converts Unix time to human readable format
 115      * @param milliseconds that have passed since 01/01/1970
 116      * @return The human readable time for the users locale
 117      */
 118     public static String unixTimeToHumanReadable(long milliseconds) {
 119         Date date = new Date(milliseconds);
 120         DateFormat df = DateFormat.getDateTimeInstance();
 121         return df.format(date);
 122     }
 123
 124     public static int getSeasonalIconId() {
 125         if (Calendar.getInstance().get(Calendar.DAY_OF_YEAR) >= 354 &&
 126                 MainApp.getAppContext().getString(R.string.app_name).equals(OWNCLOUD_APP_NAME)) {
 127             return R.drawable.winter_holidays_icon;
 128         } else {
 129             return R.drawable.icon;
 130         }
 131     }
 132
 133     /**
 134      * Converts an internationalized domain name (IDN) in an URL to and from ASCII/Unicode.
 135      * @param url the URL where the domain name should be converted
 136      * @param toASCII if true converts from Unicode to ASCII, if false converts from ASCII to Unicode
 137      * @return the URL containing the converted domain name
 138      */
 139     @TargetApi(Build.VERSION_CODES.GINGERBREAD)
 140     public static String convertIdn(String url, boolean toASCII) {
 141
 142         String urlNoDots = url;
 143         String dots="";
 144         while (urlNoDots.startsWith(".")) {
 145             urlNoDots = url.substring(1);
 146             dots = dots + ".";
 147         }
 148
 149         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
 150             // Find host name after '//' or '@'
 151             int hostStart = 0;
 152             if  (urlNoDots.indexOf("//") != -1) {
 153                 hostStart = url.indexOf("//") + "//".length();
 154             } else if (url.indexOf("@") != -1) {
 155                 hostStart = url.indexOf("@") + "@".length();
 156             }
 157
 158             int hostEnd = url.substring(hostStart).indexOf("/");
 159             // Handle URL which doesn't have a path (path is implicitly '/')
 160             hostEnd = (hostEnd == -1 ? urlNoDots.length() : hostStart + hostEnd);
 161
 162             String host = urlNoDots.substring(hostStart, hostEnd);
 163             host = (toASCII ? IDN.toASCII(host) : IDN.toUnicode(host));
 164
 165             return dots + urlNoDots.substring(0, hostStart) + host + urlNoDots.substring(hostEnd);
 166         } else {
 167             return dots + url;
 168         }
 169     }
 170
 171     /**
 172      * Get the file extension if it is on path as type "content://.../DocInfo.doc"
 173      * @param filepath: Content Uri converted to string format
 174      * @return String: fileExtension (type '.pdf'). Empty if no extension
 175      */
 176     public static String getComposedFileExtension(String filepath) {
 177         String fileExtension = "";
 178         String fileNameInContentUri = filepath.substring(filepath.lastIndexOf("/"));
 179
 180         // Check if extension is included in uri
 181         int pos = fileNameInContentUri.lastIndexOf('.');
 182         if (pos >= 0) {
 183             fileExtension = fileNameInContentUri.substring(pos);
 184         }
 185         return fileExtension;
 186     }
 187
 188     @SuppressWarnings("deprecation")
 189     public static CharSequence getRelativeDateTimeString (
 190             Context c, long time, long minResolution, long transitionResolution, int flags
 191             ){
 192
 193         CharSequence dateString = "";
 194
 195         // in Future
 196         if (time > System.currentTimeMillis()){
 197             return DisplayUtils.unixTimeToHumanReadable(time);
 198         }
 199         // < 60 seconds -> seconds ago
 200         else if ((System.currentTimeMillis() - time) < 60 * 1000) {
 201             return c.getString(R.string.file_list_seconds_ago);
 202         } else {
 203             dateString = DateUtils.getRelativeDateTimeString(c, time, minResolution, transitionResolution, flags);
 204         }
 205
 206         String[] parts = dateString.toString().split(",");
 207         if (parts.length == 2) {
 208             if (parts[1].contains(":") && !parts[0].contains(":")) {
 209                 return parts[0];
 210             } else if (parts[0].contains(":") && !parts[1].contains(":")) {
 211                 return parts[1];
 212             }
 213         }
 214         //dateString contains unexpected format. fallback: use relative date time string from android api as is.
 215         return dateString.toString();
 216     }
 217
 218     /**
 219      * Update the passed path removing the last "/" if it is not the root folder
 220      * @param path
 221      */
 222     public static String getPathWithoutLastSlash(String path) {
 223
 224         // Remove last slash from path
 225         if (path.length() > 1 && path.charAt(path.length()-1) == OCFile.PATH_SEPARATOR.charAt(0)) {
 226             path = path.substring(0, path.length()-1);
 227         }
 228         return path;
 229     }
 230
 231
 232     /**
 233      * Gets the screen size in pixels in a backwards compatible way
 234      *
 235      * @param caller        Activity calling; needed to get access to the {@link android.view.WindowManager}
 236      * @return              Size in pixels of the screen, or default {@link Point} if caller is null
 237      */
 238     public static Point getScreenSize(Activity caller) {
 239         Point size = new Point();
 240         if (caller != null) {
 241             Display display = caller.getWindowManager().getDefaultDisplay();
 242             if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB_MR2) {
 243                 display.getSize(size);
 244             } else {
 245                 size.set(display.getWidth(), display.getHeight());
 246             }
 247         }
 248         return size;
 249     }
 250
 251     /**
 252      * sets the coloring of the given progress bar to color_accent.
 253      *
 254      * @param progressBar the progress bar to be colored
 255      */
 256     public static void colorPreLollipopHorizontalProgressBar(ProgressBar progressBar) {
 257         if (progressBar != null && Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 258             int color = progressBar.getResources().getColor(R.color.color_accent);
 259             progressBar.getIndeterminateDrawable().setColorFilter(color, PorterDuff.Mode.SRC_IN);
 260             progressBar.getProgressDrawable().setColorFilter(color, PorterDuff.Mode.SRC_IN);
 261         }
 262     }
 263
 264     /**
 265      * sets the coloring of the given seek bar to color_accent.
 266      *
 267      * @param seekBar the seek bar to be colored
 268      */
 269     public static void colorPreLollipopHorizontalSeekBar(SeekBar seekBar) {
 270         if (seekBar != null && Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 271             colorPreLollipopHorizontalProgressBar(seekBar);
 272
 273             if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
 274                 int color = seekBar.getResources().getColor(R.color.color_accent);
 275                 seekBar.getThumb().setColorFilter(color, PorterDuff.Mode.SRC_IN);
 276                 seekBar.getThumb().setColorFilter(color, PorterDuff.Mode.SRC_IN);
 277             }
 278         }
 279     }
 280 }