/**
* Nextcloud Android client application
*
* @author Andy Scherzinger
* @author Bartek Przybylski
* @author David A. Velasco
* Copyright (C) 2011 Bartek Przybylski
* Copyright (C) 2015 ownCloud Inc.
* Copyright (C) 2016 Andy Scherzinger
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.owncloud.android.utils;
import android.accounts.Account;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Point;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.annotation.ColorInt;
import android.support.design.widget.Snackbar;
import android.support.v4.app.FragmentActivity;
import android.support.v4.content.ContextCompat;
import android.text.format.DateUtils;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import com.owncloud.android.MainApp;
import com.owncloud.android.R;
import com.owncloud.android.datamodel.FileDataStorageManager;
import com.owncloud.android.datamodel.OCFile;
import com.owncloud.android.datamodel.ThumbnailsCacheManager;
import com.owncloud.android.lib.common.OwnCloudAccount;
import com.owncloud.android.lib.common.utils.Log_OC;
import com.owncloud.android.ui.TextDrawable;
import com.owncloud.android.ui.activity.ToolbarActivity;
import java.math.BigDecimal;
import java.net.IDN;
import java.text.DateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
/**
* A helper class for UI/display related operations.
*/
public class DisplayUtils {
private static final String TAG = DisplayUtils.class.getSimpleName();
private static final String[] sizeSuffixes = { "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };
private static final int[] sizeScales = { 0, 0, 1, 1, 1, 2, 2, 2, 2 };
public static final int RELATIVE_THRESHOLD_WARNING = 90;
public static final int RELATIVE_THRESHOLD_CRITICAL = 95;
public static final String MIME_TYPE_UNKNOWN = "Unknown type";
private static Map<String, String> mimeType2HumanReadable;
static {
mimeType2HumanReadable = new HashMap<>();
// images
mimeType2HumanReadable.put("image/jpeg", "JPEG image");
mimeType2HumanReadable.put("image/jpg", "JPEG image");
mimeType2HumanReadable.put("image/png", "PNG image");
mimeType2HumanReadable.put("image/bmp", "Bitmap image");
mimeType2HumanReadable.put("image/gif", "GIF image");
mimeType2HumanReadable.put("image/svg+xml", "JPEG image");
mimeType2HumanReadable.put("image/tiff", "TIFF image");
// music
mimeType2HumanReadable.put("audio/mpeg", "MP3 music file");
mimeType2HumanReadable.put("application/ogg", "OGG music file");
}
/**
* Converts the file size in bytes to human readable output.
* <ul>
* <li>appends a size suffix, e.g. B, KB, MB etc.</li>
* <li>rounds the size based on the suffix to 0,1 or 2 decimals</li>
* </ul>
*
* @param bytes Input file size
* @return something readable like "12 MB", {@link com.owncloud.android.R.string#common_pending} for negative
* byte values
*/
public static String bytesToHumanReadable(long bytes) {
if (bytes < 0) {
return MainApp.getAppContext().getString(R.string.common_pending);
} else {
double result = bytes;
int suffixIndex = 0;
while (result > 1024 && suffixIndex < sizeSuffixes.length) {
result /= 1024.;
suffixIndex++;
}
return new BigDecimal(String.valueOf(result)).setScale(
sizeScales[suffixIndex], BigDecimal.ROUND_HALF_UP) + " " + sizeSuffixes[suffixIndex];
}
}
/**
* Converts MIME types like "image/jpg" to more end user friendly output
* like "JPG image".
*
* @param mimetype MIME type to convert
* @return A human friendly version of the MIME type, {@link #MIME_TYPE_UNKNOWN} if it can't be converted
*/
public static String convertMIMEtoPrettyPrint(String mimetype) {
if (mimeType2HumanReadable.containsKey(mimetype)) {
return mimeType2HumanReadable.get(mimetype);
}
if (mimetype.split("/").length >= 2) {
return mimetype.split("/")[1].toUpperCase() + " file";
}
return MIME_TYPE_UNKNOWN;
}
/**
* Converts Unix time to human readable format
*
* @param milliseconds that have passed since 01/01/1970
* @return The human readable time for the users locale
*/
public static String unixTimeToHumanReadable(long milliseconds) {
Date date = new Date(milliseconds);
DateFormat df = DateFormat.getDateTimeInstance();
return df.format(date);
}
/**
* Converts an internationalized domain name (IDN) in an URL to and from ASCII/Unicode.
*
* @param url the URL where the domain name should be converted
* @param toASCII if true converts from Unicode to ASCII, if false converts from ASCII to Unicode
* @return the URL containing the converted domain name
*/
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
public static String convertIdn(String url, boolean toASCII) {
String urlNoDots = url;
String dots="";
while (urlNoDots.startsWith(".")) {
urlNoDots = url.substring(1);
dots = dots + ".";
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
// Find host name after '//' or '@'
int hostStart = 0;
if (urlNoDots.contains("//")) {
hostStart = url.indexOf("//") + "//".length();
} else if (url.contains("@")) {
hostStart = url.indexOf('@') + "@".length();
}
int hostEnd = url.substring(hostStart).indexOf("/");
// Handle URL which doesn't have a path (path is implicitly '/')
hostEnd = (hostEnd == -1 ? urlNoDots.length() : hostStart + hostEnd);
String host = urlNoDots.substring(hostStart, hostEnd);
host = (toASCII ? IDN.toASCII(host) : IDN.toUnicode(host));
return dots + urlNoDots.substring(0, hostStart) + host + urlNoDots.substring(hostEnd);
} else {
return dots + url;
}
}
/**
* creates the display string for an account.
*
* @param context the actual activity
* @param savedAccount the actual, saved account
* @param accountName the account name
* @param fallbackString String to be used in case of an error
* @return the display string for the given account data
*/
public static String getAccountNameDisplayText(Context context, Account savedAccount, String accountName, String
fallbackString) {
try {
return new OwnCloudAccount(savedAccount, context).getDisplayName()
+ " @ "
+ convertIdn(accountName.substring(accountName.lastIndexOf('@') + 1), false);
} catch (Exception e) {
Log_OC.w(TAG, "Couldn't get display name for account, using old style");
return fallbackString;
}
}
/**
* calculates the relative time string based on the given modificaion timestamp.
*
* @param context the app's context
* @param modificationTimestamp the UNIX timestamp of the file modification time.
* @return a relative time string
*/
public static CharSequence getRelativeTimestamp(Context context, long modificationTimestamp) {
return getRelativeDateTimeString(context, modificationTimestamp, DateUtils.SECOND_IN_MILLIS,
DateUtils.WEEK_IN_MILLIS, 0);
}
/**
* determines the info level color based on certain thresholds
* {@link #RELATIVE_THRESHOLD_WARNING} and {@link #RELATIVE_THRESHOLD_CRITICAL}.
*
* @param context the app's context
* @param relative relative value for which the info level color should be looked up
* @return info level color
*/
public static int getRelativeInfoColor(Context context, int relative) {
if (relative < RELATIVE_THRESHOLD_WARNING) {
return context.getResources().getColor(R.color.infolevel_info);
} else if (relative >= RELATIVE_THRESHOLD_WARNING && relative < RELATIVE_THRESHOLD_CRITICAL) {
return context.getResources().getColor(R.color.infolevel_warning);
} else {
return context.getResources().getColor(R.color.infolevel_critical);
}
}
public static CharSequence getRelativeDateTimeString(
Context c, long time, long minResolution, long transitionResolution, int flags) {
CharSequence dateString = "";
// in Future
if (time > System.currentTimeMillis()) {
return DisplayUtils.unixTimeToHumanReadable(time);
}
// < 60 seconds -> seconds ago
else if ((System.currentTimeMillis() - time) < 60 * 1000) {
return c.getString(R.string.file_list_seconds_ago);
} else {
dateString = DateUtils.getRelativeDateTimeString(c, time, minResolution, transitionResolution, flags);
}
String[] parts = dateString.toString().split(",");
if (parts.length == 2) {
if (parts[1].contains(":") && !parts[0].contains(":")) {
return parts[0];
} else if (parts[0].contains(":") && !parts[1].contains(":")) {
return parts[1];
}
}
//dateString contains unexpected format. fallback: use relative date time string from android api as is.
return dateString.toString();
}
/**
* Update the passed path removing the last "/" if it is not the root folder.
*
* @param path the path to be trimmed
*/
public static String getPathWithoutLastSlash(String path) {
// Remove last slash from path
if (path.length() > 1 && path.charAt(path.length()-1) == OCFile.PATH_SEPARATOR.charAt(0)) {
path = path.substring(0, path.length()-1);
}
return path;
}
/**
* Gets the screen size in pixels.
*
* @param caller Activity calling; needed to get access to the {@link android.view.WindowManager}
* @return Size in pixels of the screen, or default {@link Point} if caller is null
*/
public static Point getScreenSize(Activity caller) {
Point size = new Point();
if (caller != null) {
caller.getWindowManager().getDefaultDisplay().getSize(size);
}
return size;
}
/**
* sets the coloring of the given progress bar to color_accent.
*
* @param progressBar the progress bar to be colored
*/
public static void colorPreLollipopHorizontalProgressBar(ProgressBar progressBar) {
if (progressBar != null && Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
colorHorizontalProgressBar(progressBar, progressBar.getResources().getColor(R.color.color_accent));
}
}
/**
* sets the coloring of the given progress bar to color_accent.
*
* @param progressBar the progress bar to be colored
* @param color the color to be used
*/
public static void colorHorizontalProgressBar(ProgressBar progressBar, @ColorInt int color) {
if (progressBar != null) {
progressBar.getIndeterminateDrawable().setColorFilter(color, PorterDuff.Mode.SRC_IN);
progressBar.getProgressDrawable().setColorFilter(color, PorterDuff.Mode.SRC_IN);
}
}
/**
* sets the coloring of the given seek bar to color_accent.
*
* @param seekBar the seek bar to be colored
*/
public static void colorPreLollipopHorizontalSeekBar(SeekBar seekBar) {
if (seekBar != null && Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
colorPreLollipopHorizontalProgressBar(seekBar);
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
int color = seekBar.getResources().getColor(R.color.color_accent);
seekBar.getThumb().setColorFilter(color, PorterDuff.Mode.SRC_IN);
seekBar.getThumb().setColorFilter(color, PorterDuff.Mode.SRC_IN);
}
}
}
/**
* set the Nextcloud standard colors for the snackbar.
*
* @param context the context relevant for setting the color according to the context's theme
* @param snackbar the snackbar to be colored
*/
public static void colorSnackbar(Context context, Snackbar snackbar) {
// Changing action button text color
snackbar.setActionTextColor(ContextCompat.getColor(context, R.color.white));
}
/**
* Sets the color of the status bar to {@code color} on devices with OS version lollipop or higher.
*
* @param fragmentActivity fragment activity
* @param color the color
*/
public static void colorStatusBar(FragmentActivity fragmentActivity, @ColorInt int color) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
fragmentActivity.getWindow().setStatusBarColor(color);
}
}
/**
* Sets the color of the progressbar to {@code color} within the given toolbar.
*
* @param activity the toolbar activity instance
* @param progressBarColor the color to be used for the toolbar's progress bar
*/
public static void colorToolbarProgressBar(FragmentActivity activity, int progressBarColor) {
if (activity instanceof ToolbarActivity) {
((ToolbarActivity) activity).setProgressBarBackgroundColor(progressBarColor);
}
}
public interface AvatarGenerationListener {
void avatarGenerated(Drawable avatarDrawable, Object callContext);
boolean shouldCallGeneratedCallback(String tag, Object callContext);
}
/**
* fetches and sets the avatar of the current account in the drawer in case the drawer is available.
*
* @param account the account to be set in the drawer
* @param avatarRadius the avatar radius
* @param resources reference for density information
* @param storageManager reference for caching purposes
*/
public static void setAvatar(Account account, AvatarGenerationListener listener, float avatarRadius, Resources resources,
FileDataStorageManager storageManager, Object callContext) {
if (account != null) {
if (callContext instanceof View) {
((View) callContext).setContentDescription(account.name);
}
// Thumbnail in Cache?
Bitmap thumbnail = ThumbnailsCacheManager.getBitmapFromDiskCache("a_" + account.name);
if (thumbnail != null) {
listener.avatarGenerated(
BitmapUtils.bitmapToCircularBitmapDrawable(MainApp.getAppContext().getResources(), thumbnail),
callContext);
} else {
// generate new avatar
if (ThumbnailsCacheManager.cancelPotentialAvatarWork(account.name, callContext)) {
final ThumbnailsCacheManager.AvatarGenerationTask task =
new ThumbnailsCacheManager.AvatarGenerationTask(listener, callContext, storageManager, account);
if (thumbnail == null) {
try {
listener.avatarGenerated(TextDrawable.createAvatar(account.name, avatarRadius), callContext);
} catch (Exception e) {
Log_OC.e(TAG, "Error calculating RGB value for active account icon.", e);
listener.avatarGenerated(resources.getDrawable(R.drawable.ic_account_circle), callContext);
}
} else {
final ThumbnailsCacheManager.AsyncAvatarDrawable asyncDrawable =
new ThumbnailsCacheManager.AsyncAvatarDrawable(resources, thumbnail, task);
listener.avatarGenerated(BitmapUtils.bitmapToCircularBitmapDrawable(
resources, asyncDrawable.getBitmap()), callContext);
}
task.execute(account.name);
}
}
}
}
}