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1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*- |
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2 * This Source Code Form is subject to the terms of the Mozilla Public |
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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5 |
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6 package org.mozilla.gecko; |
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7 |
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8 import org.mozilla.gecko.gfx.BitmapUtils; |
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9 import org.mozilla.gecko.util.ThreadUtils; |
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10 |
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11 import android.content.Context; |
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12 import android.content.SharedPreferences; |
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13 import android.content.SharedPreferences.Editor; |
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14 import android.graphics.Bitmap; |
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15 import android.util.Log; |
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16 |
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17 import java.util.ArrayList; |
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18 |
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19 public class WebappAllocator { |
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20 private final String LOGTAG = "GeckoWebappAllocator"; |
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21 // The number of Webapp# and WEBAPP# activites/apps/intents |
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22 private final static int MAX_WEB_APPS = 100; |
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23 |
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24 protected static WebappAllocator sInstance = null; |
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25 public static WebappAllocator getInstance() { |
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26 return getInstance(GeckoAppShell.getContext()); |
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27 } |
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28 |
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29 public static synchronized WebappAllocator getInstance(Context cx) { |
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30 if (sInstance == null) { |
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31 sInstance = new WebappAllocator(cx); |
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32 } |
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33 |
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34 return sInstance; |
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35 } |
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36 |
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37 SharedPreferences mPrefs; |
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38 |
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39 protected WebappAllocator(Context context) { |
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40 mPrefs = context.getSharedPreferences("webapps", Context.MODE_PRIVATE | Context.MODE_MULTI_PROCESS); |
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41 } |
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42 |
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43 public static String appKey(int index) { |
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44 return "app" + index; |
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45 } |
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46 |
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47 static public String iconKey(int index) { |
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48 return "icon" + index; |
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49 } |
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50 |
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51 public synchronized int findAndAllocateIndex(String app, String name, String aIconData) { |
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52 Bitmap icon = (aIconData != null) ? BitmapUtils.getBitmapFromDataURI(aIconData) : null; |
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53 return findAndAllocateIndex(app, name, icon); |
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54 } |
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55 |
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56 public synchronized int findAndAllocateIndex(final String app, final String name, final Bitmap aIcon) { |
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57 int index = getIndexForApp(app); |
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58 if (index != -1) |
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59 return index; |
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60 |
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61 for (int i = 0; i < MAX_WEB_APPS; ++i) { |
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62 if (!mPrefs.contains(appKey(i))) { |
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63 // found unused index i |
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64 updateAppAllocation(app, i, aIcon); |
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65 return i; |
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66 } |
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67 } |
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68 |
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69 // no more apps! |
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70 return -1; |
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71 } |
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72 |
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73 public synchronized void updateAppAllocation(final String app, |
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74 final int index, |
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75 final Bitmap aIcon) { |
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76 if (aIcon != null) { |
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77 ThreadUtils.getBackgroundHandler().post(new Runnable() { |
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78 @Override |
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79 public void run() { |
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80 int color = 0; |
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81 try { |
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82 color = BitmapUtils.getDominantColor(aIcon); |
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83 } catch (Exception e) { |
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84 Log.e(LOGTAG, "Exception during getDominantColor", e); |
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85 } |
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86 mPrefs.edit() |
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87 .putString(appKey(index), app) |
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88 .putInt(iconKey(index), color).commit(); |
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89 } |
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90 }); |
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91 } else { |
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92 mPrefs.edit() |
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93 .putString(appKey(index), app) |
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94 .putInt(iconKey(index), 0).commit(); |
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95 } |
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96 } |
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97 |
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98 public synchronized int getIndexForApp(String app) { |
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99 for (int i = 0; i < MAX_WEB_APPS; ++i) { |
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100 if (mPrefs.getString(appKey(i), "").equals(app)) { |
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101 return i; |
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102 } |
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103 } |
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104 |
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105 return -1; |
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106 } |
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107 |
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108 public synchronized String getAppForIndex(int index) { |
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109 return mPrefs.getString(appKey(index), null); |
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110 } |
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111 |
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112 public synchronized int releaseIndexForApp(String app) { |
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113 int index = getIndexForApp(app); |
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114 if (index == -1) |
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115 return -1; |
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116 |
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117 releaseIndex(index); |
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118 return index; |
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119 } |
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120 |
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121 public synchronized void releaseIndex(final int index) { |
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122 ThreadUtils.postToBackgroundThread(new Runnable() { |
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123 @Override |
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124 public void run() { |
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125 mPrefs.edit() |
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126 .remove(appKey(index)) |
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127 .remove(iconKey(index)) |
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128 .commit(); |
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129 } |
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130 }); |
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131 } |
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132 } |