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The JUCE cross-platform C++ framework, with DISTRHO/KXStudio specific changes
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JUCE/modules/juce_gui_basics/native/juce_android_ContentSharer.cpp

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  1. /*

  2.   ==============================================================================

  3. 

  4.    This file is part of the JUCE library.

  5.    Copyright (c) 2017 - ROLI Ltd.

  6. 

  7.    JUCE is an open source library subject to commercial or open-source

  8.    licensing.

  9. 

  10.    By using JUCE, you agree to the terms of both the JUCE 5 End-User License

  11.    Agreement and JUCE 5 Privacy Policy (both updated and effective as of the

  12.    27th April 2017).

  13. 

  14.    End User License Agreement: www.juce.com/juce-5-licence

  15.    Privacy Policy: www.juce.com/juce-5-privacy-policy

  16. 

  17.    Or: You may also use this code under the terms of the GPL v3 (see

  18.    www.gnu.org/licenses).

  19. 

  20.    JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER

  21.    EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE

  22.    DISCLAIMED.

  23. 

  24.   ==============================================================================

  25. */

  26. namespace juce

  27. {

  28. 

  29. //==============================================================================

  30. // This byte-code is generated from native/javacore/app/com/roli/juce/JuceSharingContentProvider.java with min sdk version 16

  31. // See juce_core/native/java/README.txt on how to generate this byte-code.

  32. static const uint8 javaJuceSharingContentProvider[] =

  33. {100,101,120,10,48,51,53,0,66,68,79,209,68,153,2,8,5,37,136,73,129,38,235,114,135,129,180,66,79,170,89,247,100,13,0,0,112,0,0,

  34. 0,120,86,52,18,0,0,0,0,0,0,0,0,160,12,0,0,77,0,0,0,112,0,0,0,21,0,0,0,164,1,0,0,18,0,0,0,248,1,0,0,5,0,0,0,208,2,0,0,25,0,0,0,

  35. 248,2,0,0,3,0,0,0,192,3,0,0,68,9,0,0,32,4,0,0,226,6,0,0,234,6,0,0,237,6,0,0,243,6,0,0,250,6,0,0,253,6,0,0,30,7,0,0,33,7,0,0,37,

  36. 7,0,0,42,7,0,0,50,7,0,0,85,7,0,0,118,7,0,0,161,7,0,0,188,7,0,0,221,7,0,0,240,7,0,0,11,8,0,0,46,8,0,0,105,8,0,0,170,8,0,0,214,

  37. 8,0,0,250,8,0,0,26,9,0,0,61,9,0,0,81,9,0,0,101,9,0,0,117,9,0,0,139,9,0,0,142,9,0,0,147,9,0,0,151,9,0,0,157,9,0,0,161,9,0,0,166,

  38. 9,0,0,172,9,0,0,179,9,0,0,182,9,0,0,203,9,0,0,216,9,0,0,223,9,0,0,236,9,0,0,7,10,0,0,39,10,0,0,68,10,0,0,91,10,0,0,111,10,0,

  39. 0,119,10,0,0,126,10,0,0,151,10,0,0,167,10,0,0,176,10,0,0,182,10,0,0,193,10,0,0,201,10,0,0,207,10,0,0,213,10,0,0,229,10,0,0,235,

  40. 10,0,0,241,10,0,0,251,10,0,0,4,11,0,0,19,11,0,0,29,11,0,0,35,11,0,0,47,11,0,0,54,11,0,0,62,11,0,0,73,11,0,0,88,11,0,0,99,11,

  41. 0,0,105,11,0,0,113,11,0,0,121,11,0,0,126,11,0,0,131,11,0,0,138,11,0,0,1,0,0,0,4,0,0,0,10,0,0,0,11,0,0,0,12,0,0,0,13,0,0,0,14,

  42. 0,0,0,15,0,0,0,16,0,0,0,17,0,0,0,18,0,0,0,19,0,0,0,20,0,0,0,21,0,0,0,22,0,0,0,23,0,0,0,24,0,0,0,25,0,0,0,28,0,0,0,36,0,0,0,37,

  43. 0,0,0,3,0,0,0,0,0,0,0,96,6,0,0,2,0,0,0,0,0,0,0,108,6,0,0,8,0,0,0,4,0,0,0,120,6,0,0,9,0,0,0,5,0,0,0,128,6,0,0,8,0,0,0,7,0,0,0,

  44. 144,6,0,0,6,0,0,0,9,0,0,0,0,0,0,0,8,0,0,0,9,0,0,0,120,6,0,0,7,0,0,0,17,0,0,0,152,6,0,0,28,0,0,0,18,0,0,0,0,0,0,0,29,0,0,0,18,

  45. 0,0,0,160,6,0,0,30,0,0,0,18,0,0,0,168,6,0,0,31,0,0,0,18,0,0,0,176,6,0,0,35,0,0,0,18,0,0,0,188,6,0,0,34,0,0,0,18,0,0,0,200,6,

  46. 0,0,33,0,0,0,18,0,0,0,212,6,0,0,32,0,0,0,18,0,0,0,220,6,0,0,36,0,0,0,19,0,0,0,0,0,0,0,8,0,0,0,20,0,0,0,120,6,0,0,10,0,1,0,51,0,

  47. 0,0,10,0,12,0,71,0,0,0,11,0,1,0,51,0,0,0,11,0,12,0,71,0,0,0,12,0,16,0,54,0,0,0,2,0,8,0,0,0,0,0,4,0,5,0,48,0,0,0,6,0,15,0,0,0,

  48. 0,0,6,0,8,0,39,0,0,0,8,0,14,0,0,0,0,0,10,0,13,0,0,0,0,0,10,0,8,0,39,0,0,0,10,0,10,0,41,0,0,0,11,0,12,0,0,0,0,0,11,0,11,0,42,0,

  49. 0,0,11,0,9,0,60,0,0,0,12,0,8,0,0,0,0,0,12,0,17,0,43,0,0,0,12,0,2,0,44,0,0,0,12,0,3,0,45,0,0,0,12,0,1,0,46,0,0,0,12,0,17,0,49,0,

  50. 0,0,12,0,7,0,50,0,0,0,12,0,4,0,53,0,0,0,12,0,16,0,59,0,0,0,12,0,2,0,61,0,0,0,12,0,6,0,62,0,0,0,12,0,3,0,65,0,0,0,12,0,0,0,72,

  51. 0,0,0,16,0,8,0,0,0,0,0,10,0,0,0,17,0,0,0,6,0,0,0,0,0,0,0,5,0,0,0,48,6,0,0,52,12,0,0,0,0,0,0,11,0,0,0,17,0,0,0,8,0,0,0,0,0,0,0,

  52. 5,0,0,0,64,6,0,0,75,12,0,0,0,0,0,0,12,0,0,0,17,0,0,0,2,0,0,0,0,0,0,0,5,0,0,0,80,6,0,0,98,12,0,0,0,0,0,0,2,0,0,0,18,12,0,0,24,

  53. 12,0,0,2,0,0,0,18,12,0,0,33,12,0,0,1,0,0,0,42,12,0,0,5,0,5,0,2,0,0,0,146,11,0,0,8,0,0,0,91,1,1,0,112,32,2,0,64,0,90,2,0,0,14,

  54. 0,3,0,1,0,3,0,0,0,157,11,0,0,9,0,0,0,111,16,3,0,2,0,83,32,0,0,112,48,7,0,2,1,14,0,0,0,6,0,6,0,3,0,0,0,164,11,0,0,8,0,0,0,91,1,

  55. 3,0,112,48,4,0,64,5,90,2,2,0,14,0,5,0,3,0,5,0,0,0,176,11,0,0,6,0,0,0,83,32,2,0,112,84,9,0,2,49,14,0,2,0,1,0,1,0,0,0,184,11,0,

  56. 0,11,0,0,0,112,16,0,0,1,0,34,0,16,0,112,16,24,0,0,0,91,16,4,0,14,0,0,0,5,0,4,0,0,0,0,0,190,11,0,0,2,0,0,0,18,0,15,0,5,0,3,0,3,

  57. 0,1,0,198,11,0,0,12,0,0,0,84,33,4,0,29,1,112,48,12,0,50,4,12,0,30,1,17,0,13,0,30,1,39,0,3,0,0,0,8,0,1,0,1,0,9,0,3,0,2,0,0,0,0,

  58. 0,208,11,0,0,2,0,0,0,18,0,17,0,4,0,3,0,0,0,0,0,214,11,0,0,2,0,0,0,18,0,17,0,2,0,1,0,0,0,0,0,221,11,0,0,2,0,0,0,18,16,15,0,5,

  59. 0,3,0,3,0,1,0,226,11,0,0,12,0,0,0,84,33,4,0,29,1,112,48,13,0,50,4,12,0,30,1,17,0,13,0,30,1,39,0,3,0,0,0,8,0,1,0,1,0,9,0,6,0,3,

  60. 0,3,0,1,0,235,11,0,0,21,0,0,0,84,50,4,0,29,2,112,48,13,0,67,5,12,0,56,0,8,0,110,16,1,0,0,0,12,1,30,2,17,1,18,1,30,2,40,253,13,

  61. 1,30,2,39,1,0,0,3,0,0,0,17,0,1,0,1,0,18,0,8,0,6,0,6,0,1,0,253,11,0,0,12,0,0,0,84,33,4,0,29,1,118,6,14,0,2,0,12,0,30,1,17,0,13,

  62. 0,30,1,39,0,3,0,0,0,8,0,1,0,1,0,9,0,6,0,5,0,0,0,0,0,9,12,0,0,2,0,0,0,18,0,15,0,32,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,44,4,0,0,0,0,

  63. 0,0,0,0,0,0,0,0,0,0,56,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,0,0,0,7,0,3,0,17,0,20,0,3,0,0,0,7,0,17,0,20,0,0,0,2,0,0,0,7,0,17,0,5,0,

  64. 0,0,7,0,20,0,17,0,20,0,17,0,0,0,2,0,0,0,7,0,3,0,1,0,0,0,7,0,0,0,2,0,0,0,0,0,17,0,1,0,0,0,1,0,0,0,3,0,0,0,1,0,0,0,17,0,0,0,4,

  65. 0,0,0,12,0,1,0,17,0,0,0,3,0,0,0,12,0,1,0,20,0,0,0,2,0,0,0,17,0,0,0,1,0,0,0,20,0,6,60,105,110,105,116,62,0,1,73,0,4,73,76,76,76,

  66. 0,5,73,76,76,76,76,0,1,74,0,31,74,117,99,101,83,104,97,114,105,110,103,67,111,110,116,101,110,116,80,114,111,118,105,100,101,

  67. 114,46,106,97,118,97,0,1,76,0,2,76,76,0,3,76,76,76,0,6,76,76,76,76,76,76,0,33,76,97,110,100,114,111,105,100,47,99,111,110,116,

  68. 101,110,116,47,67,111,110,116,101,110,116,80,114,111,118,105,100,101,114,59,0,31,76,97,110,100,114,111,105,100,47,99,111,110,

  69. 116,101,110,116,47,67,111,110,116,101,110,116,86,97,108,117,101,115,59,0,41,76,97,110,100,114,111,105,100,47,99,111,110,116,

  70. 101,110,116,47,114,101,115,47,65,115,115,101,116,70,105,108,101,68,101,115,99,114,105,112,116,111,114,59,0,25,76,97,110,100,114,

  71. 111,105,100,47,100,97,116,97,98,97,115,101,47,67,117,114,115,111,114,59,0,31,76,97,110,100,114,111,105,100,47,100,97,116,97,98,

  72. 97,115,101,47,77,97,116,114,105,120,67,117,114,115,111,114,59,0,17,76,97,110,100,114,111,105,100,47,110,101,116,47,85,114,105,

  73. 59,0,25,76,97,110,100,114,111,105,100,47,111,115,47,70,105,108,101,79,98,115,101,114,118,101,114,59,0,33,76,97,110,100,114,111,

  74. 105,100,47,111,115,47,80,97,114,99,101,108,70,105,108,101,68,101,115,99,114,105,112,116,111,114,59,0,57,76,99,111,109,47,114,

  75. 111,108,105,47,106,117,99,101,47,74,117,99,101,83,104,97,114,105,110,103,67,111,110,116,101,110,116,80,114,111,118,105,100,101,

  76. 114,36,80,114,111,118,105,100,101,114,67,117,114,115,111,114,59,0,63,76,99,111,109,47,114,111,108,105,47,106,117,99,101,47,

  77. 74,117,99,101,83,104,97,114,105,110,103,67,111,110,116,101,110,116,80,114,111,118,105,100,101,114,36,80,114,111,118,105,100,101,

  78. 114,70,105,108,101,79,98,115,101,114,118,101,114,59,0,42,76,99,111,109,47,114,111,108,105,47,106,117,99,101,47,74,117,99,101,

  79. 83,104,97,114,105,110,103,67,111,110,116,101,110,116,80,114,111,118,105,100,101,114,59,0,34,76,100,97,108,118,105,107,47,97,

  80. 110,110,111,116,97,116,105,111,110,47,69,110,99,108,111,115,105,110,103,67,108,97,115,115,59,0,30,76,100,97,108,118,105,107,47,

  81. 97,110,110,111,116,97,116,105,111,110,47,73,110,110,101,114,67,108,97,115,115,59,0,33,76,100,97,108,118,105,107,47,97,110,110,

  82. 111,116,97,116,105,111,110,47,77,101,109,98,101,114,67,108,97,115,115,101,115,59,0,18,76,106,97,118,97,47,108,97,110,103,47,

  83. 79,98,106,101,99,116,59,0,18,76,106,97,118,97,47,108,97,110,103,47,83,116,114,105,110,103,59,0,14,80,114,111,118,105,100,101,

  84. 114,67,117,114,115,111,114,0,20,80,114,111,118,105,100,101,114,70,105,108,101,79,98,115,101,114,118,101,114,0,1,86,0,3,86,73,

  85. 76,0,2,86,74,0,4,86,74,73,76,0,2,86,76,0,3,86,76,73,0,4,86,76,74,76,0,5,86,76,74,76,73,0,1,90,0,19,91,76,106,97,118,97,47,108,

  86. 97,110,103,47,83,116,114,105,110,103,59,0,11,97,99,99,101,115,115,70,108,97,103,115,0,5,99,108,111,115,101,0,11,99,111,108,117,

  87. 109,110,78,97,109,101,115,0,25,99,111,110,116,101,110,116,83,104,97,114,101,114,67,117,114,115,111,114,67,108,111,115,101,100,

  88. 0,30,99,111,110,116,101,110,116,83,104,97,114,101,114,70,105,108,101,79,98,115,101,114,118,101,114,69,118,101,110,116,0,27,99,

  89. 111,110,116,101,110,116,83,104,97,114,101,114,71,101,116,83,116,114,101,97,109,84,121,112,101,115,0,21,99,111,110,116,101,110,

  90. 116,83,104,97,114,101,114,79,112,101,110,70,105,108,101,0,18,99,111,110,116,101,110,116,83,104,97,114,101,114,81,117,101,114,

  91. 121,0,6,100,101,108,101,116,101,0,5,101,118,101,110,116,0,23,103,101,116,80,97,114,99,101,108,70,105,108,101,68,101,115,99,114,

  92. 105,112,116,111,114,0,14,103,101,116,83,116,114,101,97,109,84,121,112,101,115,0,7,103,101,116,84,121,112,101,0,4,104,111,115,

  93. 116,0,9,104,111,115,116,84,111,85,115,101,0,6,105,110,115,101,114,116,0,4,108,111,99,107,0,4,109,97,115,107,0,14,109,105,109,

  94. 101,84,121,112,101,70,105,108,116,101,114,0,4,109,111,100,101,0,4,110,97,109,101,0,8,111,110,67,114,101,97,116,101,0,7,111,110,

  95. 69,118,101,110,116,0,13,111,112,101,110,65,115,115,101,116,70,105,108,101,0,8,111,112,101,110,70,105,108,101,0,4,112,97,116,

  96. 104,0,10,112,114,111,106,101,99,116,105,111,110,0,5,113,117,101,114,121,0,6,114,101,115,117,108,116,0,9,115,101,108,101,99,116,

  97. 105,111,110,0,13,115,101,108,101,99,116,105,111,110,65,114,103,115,0,9,115,111,114,116,79,114,100,101,114,0,4,116,104,105,115,

  98. 0,6,116,104,105,115,36,48,0,6,117,112,100,97,116,101,0,3,117,114,105,0,3,117,114,108,0,5,118,97,108,117,101,0,6,118,97,108,117,

  99. 101,115,0,46,3,72,53,41,7,14,45,61,45,0,55,0,7,14,61,90,0,27,4,72,53,64,56,7,14,45,61,45,0,35,2,48,64,7,14,90,0,15,0,7,14,61,0,

  100. 97,3,74,68,69,7,14,0,131,1,2,74,57,7,14,61,105,0,103,1,74,7,14,0,84,2,74,77,7,14,0,68,0,7,14,0,109,2,74,58,7,14,61,105,0,118,

  101. 2,74,58,7,14,61,76,3,0,67,5,45,91,75,5,0,0,75,5,75,65,68,69,70,7,14,61,105,0,91,4,74,77,68,69,7,14,0,2,13,1,75,24,12,2,14,2,38,

  102. 4,17,58,23,26,2,14,2,38,4,17,58,23,27,2,15,1,75,28,2,24,10,24,11,0,2,2,1,0,2,1,144,32,5,128,128,4,192,8,2,130,2,0,6,1,224,8,

  103. 0,2,2,1,2,2,1,144,32,8,129,128,4,132,9,1,130,2,0,10,1,164,9,0,1,4,9,4,2,11,129,128,4,192,9,1,130,2,0,1,130,2,0,1,130,2,0,15,1,

  104. 232,9,1,1,252,9,1,1,176,10,1,1,196,10,1,1,216,10,1,1,236,10,1,1,160,11,1,1,232,11,1,1,156,12,0,0,16,0,0,0,0,0,0,0,1,0,0,0,0,

  105. 0,0,0,1,0,0,0,77,0,0,0,112,0,0,0,2,0,0,0,21,0,0,0,164,1,0,0,3,0,0,0,18,0,0,0,248,1,0,0,4,0,0,0,5,0,0,0,208,2,0,0,5,0,0,0,25,0,

  106. 0,0,248,2,0,0,6,0,0,0,3,0,0,0,192,3,0,0,3,16,0,0,3,0,0,0,32,4,0,0,1,32,0,0,14,0,0,0,64,4,0,0,6,32,0,0,3,0,0,0,48,6,0,0,1,16,

  107. 0,0,13,0,0,0,96,6,0,0,2,32,0,0,77,0,0,0,226,6,0,0,3,32,0,0,14,0,0,0,146,11,0,0,4,32,0,0,4,0,0,0,18,12,0,0,0,32,0,0,3,0,0,0,52,

  108. 12,0,0,0,16,0,0,1,0,0,0,160,12,0,0,0,0};

  109. 

  110. //==============================================================================

  111. #define JNI_CLASS_MEMBERS(METHOD, STATICMETHOD, FIELD, STATICFIELD, CALLBACK) \

  112.  FIELD (authority, "authority", "Ljava/lang/String;")

  113. 

  114. DECLARE_JNI_CLASS (AndroidProviderInfo, "android/content/pm/ProviderInfo")

  115. #undef JNI_CLASS_MEMBERS

  116. 

  117. #define JNI_CLASS_MEMBERS(METHOD, STATICMETHOD, FIELD, STATICFIELD, CALLBACK) \

  118.  METHOD (constructor,       "<init>",            "(Landroid/os/ParcelFileDescriptor;JJ)V") \

  119.  METHOD (createInputStream, "createInputStream", "()Ljava/io/FileInputStream;") \

  120.  METHOD (getLength,         "getLength",         "()J")

  121. 

  122. DECLARE_JNI_CLASS (AssetFileDescriptor, "android/content/res/AssetFileDescriptor")

  123. #undef JNI_CLASS_MEMBERS

  124. 

  125. #define JNI_CLASS_MEMBERS(METHOD, STATICMETHOD, FIELD, STATICFIELD, CALLBACK) \

  126.  METHOD (close, "close", "()V")

  127. 

  128. DECLARE_JNI_CLASS (JavaCloseable, "java/io/Closeable")

  129. #undef JNI_CLASS_MEMBERS

  130. 

  131. #define JNI_CLASS_MEMBERS(METHOD, STATICMETHOD, FIELD, STATICFIELD, CALLBACK) \

  132.  STATICMETHOD (open, "open", "(Ljava/io/File;I)Landroid/os/ParcelFileDescriptor;")

  133. 

  134. DECLARE_JNI_CLASS (ParcelFileDescriptor, "android/os/ParcelFileDescriptor")

  135. #undef JNI_CLASS_MEMBERS

  136. 

  137. //==============================================================================

  138. class AndroidContentSharerCursor

  139. {

  140. public:

  141.     class Owner

  142.     {

  143.     public:

  144.         virtual ~Owner() {}

  145. 

  146.         virtual void cursorClosed (const AndroidContentSharerCursor&) = 0;

  147.     };

  148. 

  149.     AndroidContentSharerCursor (Owner& ownerToUse, JNIEnv* env,

  150.                                 const LocalRef<jobject>& contentProvider,

  151.                                 const LocalRef<jobjectArray>& resultColumns)

  152.         : owner (ownerToUse),

  153.           cursor (GlobalRef (LocalRef<jobject> (env->NewObject (JuceContentProviderCursor,

  154.                                                                 JuceContentProviderCursor.constructor,

  155.                                                                 contentProvider.get(),

  156.                                                                 reinterpret_cast<jlong> (this),

  157.                                                                 resultColumns.get()))))

  158.     {

  159.         // the content provider must be created first

  160.         jassert (contentProvider.get() != nullptr);

  161.     }

  162. 

  163.     jobject getNativeCursor() { return cursor.get(); }

  164. 

  165.     void cursorClosed()

  166.     {

  167.         MessageManager::callAsync ([this] { owner.cursorClosed (*this); });

  168.     }

  169. 

  170.     void addRow (LocalRef<jobjectArray>& values)

  171.     {

  172.         auto* env = getEnv();

  173. 

  174.         env->CallVoidMethod (cursor.get(), JuceContentProviderCursor.addRow, values.get());

  175.     }

  176. 

  177. private:

  178.     Owner& owner;

  179.     GlobalRef cursor;

  180. 

  181.     //==============================================================================

  182.     #define JNI_CLASS_MEMBERS(METHOD, STATICMETHOD, FIELD, STATICFIELD, CALLBACK) \

  183.      METHOD (addRow,      "addRow", "([Ljava/lang/Object;)V") \

  184.      METHOD (constructor, "<init>", "(Lcom/roli/juce/JuceSharingContentProvider;J[Ljava/lang/String;)V") \

  185.      CALLBACK (contentSharerCursorClosed, "contentSharerCursorClosed", "(J)V") \

  186. 

  187.     DECLARE_JNI_CLASS (JuceContentProviderCursor, "com/roli/juce/JuceSharingContentProvider$ProviderCursor")

  188.     #undef JNI_CLASS_MEMBERS

  189. 

  190.     static void JNICALL contentSharerCursorClosed(JNIEnv*, jobject, jlong host)

  191.     {

  192.         if (auto* myself = reinterpret_cast<AndroidContentSharerCursor*> (host))

  193.             myself->cursorClosed();

  194.     }

  195. };

  196. 

  197. AndroidContentSharerCursor::JuceContentProviderCursor_Class AndroidContentSharerCursor::JuceContentProviderCursor;

  198. 

  199. //==============================================================================

  200. class AndroidContentSharerFileObserver

  201. {

  202. public:

  203.     class Owner

  204.     {

  205.     public:

  206.         virtual ~Owner() {}

  207. 

  208.         virtual void fileHandleClosed (const AndroidContentSharerFileObserver&) = 0;

  209.     };

  210. 

  211.     AndroidContentSharerFileObserver (Owner& ownerToUse, JNIEnv* env,

  212.                                       const LocalRef<jobject>& contentProvider,

  213.                                       const String& filepathToUse)

  214.         : owner (ownerToUse),

  215.           filepath (filepathToUse),

  216.           fileObserver (GlobalRef (LocalRef<jobject> (env->NewObject (JuceContentProviderFileObserver,

  217.                                                                       JuceContentProviderFileObserver.constructor,

  218.                                                                       contentProvider.get(),

  219.                                                                       reinterpret_cast<jlong> (this),

  220.                                                                       javaString (filepath).get(),

  221.                                                                       open | access | closeWrite | closeNoWrite))))

  222.     {

  223.         // the content provider must be created first

  224.         jassert (contentProvider.get() != nullptr);

  225. 

  226.         env->CallVoidMethod (fileObserver, JuceContentProviderFileObserver.startWatching);

  227.     }

  228. 

  229.     void onFileEvent (int event, const LocalRef<jstring>& path)

  230.     {

  231.         ignoreUnused (path);

  232. 

  233.         if (event == open)

  234.         {

  235.             ++numOpenedHandles;

  236.         }

  237.         else if (event == access)

  238.         {

  239.             fileWasRead = true;

  240.         }

  241.         else if (event == closeNoWrite || event == closeWrite)

  242.         {

  243.             --numOpenedHandles;

  244. 

  245.             // numOpenedHandles may get negative if we don't receive open handle event.

  246.             if (fileWasRead && numOpenedHandles <= 0)

  247.             {

  248.                 MessageManager::callAsync ([this]

  249.                 {

  250.                     getEnv()->CallVoidMethod (fileObserver, JuceContentProviderFileObserver.stopWatching);

  251.                     owner.fileHandleClosed (*this);

  252.                 });

  253.             }

  254.         }

  255.     }

  256. 

  257. private:

  258.     static constexpr int open = 32;

  259.     static constexpr int access = 1;

  260.     static constexpr int closeWrite = 8;

  261.     static constexpr int closeNoWrite = 16;

  262. 

  263.     bool fileWasRead = false;

  264.     int numOpenedHandles = 0;

  265. 

  266.     Owner& owner;

  267.     String filepath;

  268.     GlobalRef fileObserver;

  269. 

  270.     //==============================================================================

  271.     #define JNI_CLASS_MEMBERS(METHOD, STATICMETHOD, FIELD, STATICFIELD, CALLBACK) \

  272.      METHOD (constructor,   "<init>",        "(Lcom/roli/juce/JuceSharingContentProvider;JLjava/lang/String;I)V") \

  273.      METHOD (startWatching, "startWatching", "()V") \

  274.      METHOD (stopWatching,  "stopWatching",  "()V") \

  275.      CALLBACK (contentSharerFileObserverEvent, "contentSharerFileObserverEvent", "(JILjava/lang/String;)V") \

  276. 

  277.     DECLARE_JNI_CLASS (JuceContentProviderFileObserver, "com/roli/juce/JuceSharingContentProvider$ProviderFileObserver")

  278.     #undef JNI_CLASS_MEMBERS

  279. 

  280.     static void JNICALL contentSharerFileObserverEvent (JNIEnv*, jobject /*fileObserver*/, jlong host, int event, jstring path)

  281.     {

  282.         if (auto* myself = reinterpret_cast<AndroidContentSharerFileObserver*> (host))

  283.             myself->onFileEvent (event, LocalRef<jstring> (path));

  284.     }

  285. };

  286. 

  287. AndroidContentSharerFileObserver::JuceContentProviderFileObserver_Class AndroidContentSharerFileObserver::JuceContentProviderFileObserver;

  288. 

  289. //==============================================================================

  290. class AndroidContentSharerPrepareFilesThread    : private Thread

  291. {

  292. public:

  293.     AndroidContentSharerPrepareFilesThread (AsyncUpdater& ownerToUse,

  294.                                             const Array<URL>& fileUrlsToUse,

  295.                                             const String& packageNameToUse,

  296.                                             const String& uriBaseToUse)

  297.         : Thread ("AndroidContentSharerPrepareFilesThread"),

  298.           owner (ownerToUse),

  299.           fileUrls (fileUrlsToUse),

  300.           resultFileUris (GlobalRef (LocalRef<jobject> (getEnv()->NewObject (JavaArrayList,

  301.                                                                              JavaArrayList.constructor,

  302.                                                                              fileUrls.size())))),

  303.           packageName (packageNameToUse),

  304.           uriBase (uriBaseToUse)

  305.     {

  306.         startThread();

  307.     }

  308. 

  309.     ~AndroidContentSharerPrepareFilesThread() override

  310.     {

  311.         signalThreadShouldExit();

  312.         waitForThreadToExit (10000);

  313. 

  314.         for (auto& f : temporaryFilesFromAssetFiles)

  315.             f.deleteFile();

  316.     }

  317. 

  318.     jobject getResultFileUris()  { return resultFileUris.get(); }

  319.     const StringArray& getMimeTypes() const { return mimeTypes; }

  320.     const StringArray& getFilePaths() const { return filePaths; }

  321. 

  322. private:

  323.     struct StreamCloser

  324.     {

  325.         StreamCloser (const LocalRef<jobject>& streamToUse)

  326.             : stream (GlobalRef (streamToUse))

  327.         {

  328.         }

  329. 

  330.         ~StreamCloser()

  331.         {

  332.             if (stream.get() != nullptr)

  333.                 getEnv()->CallVoidMethod (stream, JavaCloseable.close);

  334.         }

  335. 

  336.         GlobalRef stream;

  337.     };

  338. 

  339.     void run() override

  340.     {

  341.         auto* env = getEnv();

  342. 

  343.         bool canSpecifyMimeTypes = true;

  344. 

  345.         for (auto f : fileUrls)

  346.         {

  347.             auto scheme = f.getScheme();

  348. 

  349.             // Only "file://" scheme or no scheme (for files in app bundle) are allowed!

  350.             jassert (scheme.isEmpty() || scheme == "file");

  351. 

  352.             if (scheme.isEmpty())

  353.             {

  354.                 // Raw resource names need to be all lower case

  355.                 jassert (f.toString (true).toLowerCase() == f.toString (true));

  356. 

  357.                 // This will get us a file with file:// URI

  358.                 f = copyAssetFileToTemporaryFile (env, f.toString (true));

  359. 

  360.                 if (f.isEmpty())

  361.                     continue;

  362.             }

  363. 

  364.             if (threadShouldExit())

  365.                 return;

  366. 

  367.             auto filepath = URL::removeEscapeChars (f.toString (true).fromFirstOccurrenceOf ("file://", false, false));

  368. 

  369.             filePaths.add (filepath);

  370. 

  371.             auto filename = filepath.fromLastOccurrenceOf ("/", false, true);

  372.             auto fileExtension = filename.fromLastOccurrenceOf (".", false, true);

  373.             auto contentString = uriBase + String (filePaths.size() - 1) + "/" + filename;

  374. 

  375.             auto uri = LocalRef<jobject> (env->CallStaticObjectMethod (AndroidUri, AndroidUri.parse,

  376.                                                                        javaString (contentString).get()));

  377. 

  378.             if (canSpecifyMimeTypes)

  379.                 canSpecifyMimeTypes = fileExtension.isNotEmpty();

  380. 

  381.             if (canSpecifyMimeTypes)

  382.                 mimeTypes.addArray (getMimeTypesForFileExtension (fileExtension));

  383.             else

  384.                 mimeTypes.clear();

  385. 

  386.             env->CallBooleanMethod (resultFileUris, JavaArrayList.add, uri.get());

  387.         }

  388. 

  389.         owner.triggerAsyncUpdate();

  390.     }

  391. 

  392.     URL copyAssetFileToTemporaryFile (JNIEnv* env, const String& filename)

  393.     {

  394.         auto resources = LocalRef<jobject> (env->CallObjectMethod (getAppContext().get(), AndroidContext.getResources));

  395.         int fileId = env->CallIntMethod (resources, AndroidResources.getIdentifier, javaString (filename).get(),

  396.                                          javaString ("raw").get(), javaString (packageName).get());

  397. 

  398.         // Raw resource not found. Please make sure that you include your file as a raw resource

  399.         // and that you specify just the file name, without an extension.

  400.         jassert (fileId != 0);

  401. 

  402.         if (fileId == 0)

  403.             return {};

  404. 

  405.         auto assetFd = LocalRef<jobject> (env->CallObjectMethod (resources,

  406.                                                                  AndroidResources.openRawResourceFd,

  407.                                                                  fileId));

  408. 

  409.         auto inputStream = StreamCloser (LocalRef<jobject> (env->CallObjectMethod (assetFd,

  410.                                                                                    AssetFileDescriptor.createInputStream)));

  411. 

  412.         if (jniCheckHasExceptionOccurredAndClear())

  413.         {

  414.             // Failed to open file stream for resource

  415.             jassertfalse;

  416.             return {};

  417.         }

  418. 

  419.         auto tempFile = File::createTempFile ({});

  420.         tempFile.createDirectory();

  421.         tempFile = tempFile.getChildFile (filename);

  422. 

  423.         auto outputStream = StreamCloser (LocalRef<jobject> (env->NewObject (JavaFileOutputStream,

  424.                                                                              JavaFileOutputStream.constructor,

  425.                                                                              javaString (tempFile.getFullPathName()).get())));

  426. 

  427.         if (jniCheckHasExceptionOccurredAndClear())

  428.         {

  429.             // Failed to open file stream for temporary file

  430.             jassertfalse;

  431.             return {};

  432.         }

  433. 

  434.         auto buffer = LocalRef<jbyteArray> (env->NewByteArray (1024));

  435.         int bytesRead = 0;

  436. 

  437.         for (;;)

  438.         {

  439.             if (threadShouldExit())

  440.                 return {};

  441. 

  442.             bytesRead = env->CallIntMethod (inputStream.stream, JavaFileInputStream.read, buffer.get());

  443. 

  444.             if (jniCheckHasExceptionOccurredAndClear())

  445.             {

  446.                 // Failed to read from resource file.

  447.                 jassertfalse;

  448.                 return {};

  449.             }

  450. 

  451.             if (bytesRead < 0)

  452.                 break;

  453. 

  454.             env->CallVoidMethod (outputStream.stream, JavaFileOutputStream.write, buffer.get(), 0, bytesRead);

  455. 

  456.             if (jniCheckHasExceptionOccurredAndClear())

  457.             {

  458.                 // Failed to write to temporary file.

  459.                 jassertfalse;

  460.                 return {};

  461.             }

  462.         }

  463. 

  464.         temporaryFilesFromAssetFiles.add (tempFile);

  465. 

  466.         return URL (tempFile);

  467.     }

  468. 

  469.     AsyncUpdater& owner;

  470.     Array<URL> fileUrls;

  471. 

  472.     GlobalRef resultFileUris;

  473.     String packageName;

  474.     String uriBase;

  475. 

  476.     StringArray filePaths;

  477.     Array<File> temporaryFilesFromAssetFiles;

  478.     StringArray mimeTypes;

  479. };

  480. 

  481. //==============================================================================

  482. class ContentSharer::ContentSharerNativeImpl  : public ContentSharer::Pimpl,

  483.                                                 public AndroidContentSharerFileObserver::Owner,

  484.                                                 public AndroidContentSharerCursor::Owner,

  485.                                                 public AsyncUpdater,

  486.                                                 private Timer

  487. {

  488. public:

  489.     ContentSharerNativeImpl (ContentSharer& cs)

  490.         : owner (cs),

  491.           packageName (juceString (LocalRef<jstring> ((jstring) getEnv()->CallObjectMethod (getAppContext().get(), AndroidContext.getPackageName)))),

  492.           uriBase ("content://" + packageName + ".sharingcontentprovider/")

  493.     {

  494.     }

  495. 

  496.     ~ContentSharerNativeImpl() override

  497.     {

  498.         masterReference.clear();

  499.     }

  500. 

  501.     void shareFiles (const Array<URL>& files) override

  502.     {

  503.         if (! isContentSharingEnabled())

  504.         {

  505.             // You need to enable "Content Sharing" in Projucer's Android exporter.

  506.             jassertfalse;

  507.             owner.sharingFinished (false, {});

  508.         }

  509. 

  510.         prepareFilesThread.reset (new AndroidContentSharerPrepareFilesThread (*this, files, packageName, uriBase));

  511.     }

  512. 

  513.     void shareText (const String& text) override

  514.     {

  515.         if (! isContentSharingEnabled())

  516.         {

  517.             // You need to enable "Content Sharing" in Projucer's Android exporter.

  518.             jassertfalse;

  519.             owner.sharingFinished (false, {});

  520.         }

  521. 

  522.         auto* env = getEnv();

  523. 

  524.         auto intent = LocalRef<jobject> (env->NewObject (AndroidIntent, AndroidIntent.constructor));

  525.         env->CallObjectMethod (intent, AndroidIntent.setAction,

  526.                                javaString ("android.intent.action.SEND").get());

  527.         env->CallObjectMethod (intent, AndroidIntent.putExtra,

  528.                                javaString ("android.intent.extra.TEXT").get(),

  529.                                javaString (text).get());

  530.         env->CallObjectMethod (intent, AndroidIntent.setType, javaString ("text/plain").get());

  531. 

  532.         auto chooserIntent = LocalRef<jobject> (env->CallStaticObjectMethod (AndroidIntent, AndroidIntent.createChooser,

  533.                                                                              intent.get(), javaString ("Choose share target").get()));

  534. 

  535.         WeakReference<ContentSharerNativeImpl> weakRef (this);

  536. 

  537.         startAndroidActivityForResult (chooserIntent, 1003,

  538.                                        [weakRef] (int /*requestCode*/, int resultCode, LocalRef<jobject> /*intentData*/) mutable

  539.                                        {

  540.                                            if (weakRef != nullptr)

  541.                                                weakRef->sharingFinished (resultCode);

  542.                                        });

  543.     }

  544. 

  545.     //==============================================================================

  546.     void cursorClosed (const AndroidContentSharerCursor& cursor) override

  547.     {

  548.         cursors.removeObject (&cursor);

  549.     }

  550. 

  551.     void fileHandleClosed (const AndroidContentSharerFileObserver&) override

  552.     {

  553.         decrementPendingFileCountAndNotifyOwnerIfReady();

  554.     }

  555. 

  556.     //==============================================================================

  557.     jobject openFile (const LocalRef<jobject>& contentProvider,

  558.                       const LocalRef<jobject>& uri, const LocalRef<jstring>& mode)

  559.     {

  560.         ignoreUnused (mode);

  561. 

  562.         WeakReference<ContentSharerNativeImpl> weakRef (this);

  563. 

  564.         if (weakRef == nullptr)

  565.             return nullptr;

  566. 

  567.         auto* env = getEnv();

  568. 

  569.         auto uriElements = getContentUriElements (env, uri);

  570. 

  571.         if (uriElements.filepath.isEmpty())

  572.             return nullptr;

  573. 

  574.         return getAssetFileDescriptor (env, contentProvider, uriElements.filepath);

  575.     }

  576. 

  577.     jobject query (const LocalRef<jobject>& contentProvider, const LocalRef<jobject>& uri,

  578.                    const LocalRef<jobjectArray>& projection, const LocalRef<jobject>& selection,

  579.                    const LocalRef<jobjectArray>& selectionArgs, const LocalRef<jobject>& sortOrder)

  580.     {

  581.         ignoreUnused (selection, selectionArgs, sortOrder);

  582. 

  583.         StringArray requestedColumns = javaStringArrayToJuce (projection);

  584.         StringArray supportedColumns = getSupportedColumns();

  585. 

  586.         StringArray resultColumns;

  587. 

  588.         for (const auto& col : supportedColumns)

  589.         {

  590.             if (requestedColumns.contains (col))

  591.                 resultColumns.add (col);

  592.         }

  593. 

  594.         // Unsupported columns were queried, file sharing may fail.

  595.         if (resultColumns.isEmpty())

  596.             return nullptr;

  597. 

  598.         auto resultJavaColumns = juceStringArrayToJava (resultColumns);

  599. 

  600.         auto* env = getEnv();

  601. 

  602.         auto cursor = cursors.add (new AndroidContentSharerCursor (*this, env, contentProvider,

  603.                                                                    resultJavaColumns));

  604. 

  605.         auto uriElements = getContentUriElements (env, uri);

  606. 

  607.         if (uriElements.filepath.isEmpty())

  608.             return cursor->getNativeCursor();

  609. 

  610.         auto values = LocalRef<jobjectArray> (env->NewObjectArray ((jsize) resultColumns.size(),

  611.                                                                    JavaObject, nullptr));

  612. 

  613.         for (int i = 0; i < resultColumns.size(); ++i)

  614.         {

  615.             if (resultColumns.getReference (i) == "_display_name")

  616.             {

  617.                 env->SetObjectArrayElement (values, i, javaString (uriElements.filename).get());

  618.             }

  619.             else if (resultColumns.getReference (i) == "_size")

  620.             {

  621.                 auto javaFile = LocalRef<jobject> (env->NewObject (JavaFile, JavaFile.constructor,

  622.                                                                    javaString (uriElements.filepath).get()));

  623. 

  624.                 jlong fileLength = env->CallLongMethod (javaFile, JavaFile.length);

  625. 

  626.                 env->SetObjectArrayElement (values, i, env->NewObject (JavaLong,

  627.                                                                        JavaLong.constructor,

  628.                                                                        fileLength));

  629.             }

  630.         }

  631. 

  632.         cursor->addRow (values);

  633.         return cursor->getNativeCursor();

  634.     }

  635. 

  636.     jobjectArray getStreamTypes (const LocalRef<jobject>& uri, const LocalRef<jstring>& mimeTypeFilter)

  637.     {

  638.         auto* env = getEnv();

  639. 

  640.         auto extension = getContentUriElements (env, uri).filename.fromLastOccurrenceOf (".", false, true);

  641. 

  642.         if (extension.isEmpty())

  643.             return nullptr;

  644. 

  645.         return juceStringArrayToJava (filterMimeTypes (getMimeTypesForFileExtension (extension),

  646.                                                                   juceString (mimeTypeFilter.get())));

  647.     }

  648. 

  649.     void sharingFinished (int resultCode)

  650.     {

  651.         sharingActivityDidFinish = true;

  652. 

  653.         succeeded = resultCode == -1;

  654. 

  655.         // Give content sharer a chance to request file access.

  656.         if (nonAssetFilesPendingShare.get() == 0)

  657.             startTimer (2000);

  658.         else

  659.             notifyOwnerIfReady();

  660.     }

  661. 

  662. private:

  663.     bool isContentSharingEnabled() const

  664.     {

  665.         auto* env = getEnv();

  666. 

  667.         LocalRef<jobject> packageManager (env->CallObjectMethod (getAppContext().get(), AndroidContext.getPackageManager));

  668. 

  669.         constexpr int getProviders = 8;

  670.         auto packageInfo = LocalRef<jobject> (env->CallObjectMethod (packageManager,

  671.                                                                      AndroidPackageManager.getPackageInfo,

  672.                                                                      javaString (packageName).get(),

  673.                                                                      getProviders));

  674.         auto providers = LocalRef<jobjectArray> ((jobjectArray) env->GetObjectField (packageInfo,

  675.                                                                                      AndroidPackageInfo.providers));

  676. 

  677.         if (providers == nullptr)

  678.             return false;

  679. 

  680.         auto sharingContentProviderAuthority = packageName + ".sharingcontentprovider";

  681.         const int numProviders = env->GetArrayLength (providers.get());

  682. 

  683.         for (int i = 0; i < numProviders; ++i)

  684.         {

  685.             auto providerInfo = LocalRef<jobject> (env->GetObjectArrayElement (providers, i));

  686.             auto authority = LocalRef<jstring> ((jstring) env->GetObjectField (providerInfo,

  687.                                                                                AndroidProviderInfo.authority));

  688. 

  689.             if (juceString (authority) == sharingContentProviderAuthority)

  690.                 return true;

  691.         }

  692. 

  693.         return false;

  694.     }

  695. 

  696.     void handleAsyncUpdate() override

  697.     {

  698.         jassert (prepareFilesThread != nullptr);

  699. 

  700.         if (prepareFilesThread == nullptr)

  701.             return;

  702. 

  703.         filesPrepared (prepareFilesThread->getResultFileUris(), prepareFilesThread->getMimeTypes());

  704.     }

  705. 

  706.     void filesPrepared (jobject fileUris, const StringArray& mimeTypes)

  707.     {

  708.         auto* env = getEnv();

  709. 

  710.         auto intent = LocalRef<jobject> (env->NewObject (AndroidIntent, AndroidIntent.constructor));

  711.         env->CallObjectMethod (intent, AndroidIntent.setAction,

  712.                                javaString ("android.intent.action.SEND_MULTIPLE").get());

  713. 

  714.         env->CallObjectMethod (intent, AndroidIntent.setType,

  715.                                javaString (getCommonMimeType (mimeTypes)).get());

  716. 

  717.         constexpr int grantReadPermission = 1;

  718.         env->CallObjectMethod (intent, AndroidIntent.setFlags, grantReadPermission);

  719. 

  720.         env->CallObjectMethod (intent, AndroidIntent.putParcelableArrayListExtra,

  721.                                javaString ("android.intent.extra.STREAM").get(),

  722.                                fileUris);

  723. 

  724.         auto chooserIntent = LocalRef<jobject> (env->CallStaticObjectMethod (AndroidIntent,

  725.                                                                              AndroidIntent.createChooser,

  726.                                                                              intent.get(),

  727.                                                                              javaString ("Choose share target").get()));

  728.         WeakReference<ContentSharerNativeImpl> weakRef (this);

  729. 

  730.         startAndroidActivityForResult (chooserIntent, 1003,

  731.                                        [weakRef] (int /*requestCode*/, int resultCode, LocalRef<jobject> /*intentData*/) mutable

  732.                                        {

  733.                                            if (weakRef != nullptr)

  734.                                                weakRef->sharingFinished (resultCode);

  735.                                        });

  736.     }

  737. 

  738.     void decrementPendingFileCountAndNotifyOwnerIfReady()

  739.     {

  740.         --nonAssetFilesPendingShare;

  741. 

  742.         notifyOwnerIfReady();

  743.     }

  744. 

  745.     void notifyOwnerIfReady()

  746.     {

  747.         if (sharingActivityDidFinish && nonAssetFilesPendingShare.get() == 0)

  748.             owner.sharingFinished (succeeded, {});

  749.     }

  750. 

  751.     void timerCallback() override

  752.     {

  753.         stopTimer();

  754. 

  755.         notifyOwnerIfReady();

  756.     }

  757. 

  758.     //==============================================================================

  759.     struct ContentUriElements

  760.     {

  761.         String index;

  762.         String filename;

  763.         String filepath;

  764.     };

  765. 

  766.     ContentUriElements getContentUriElements (JNIEnv* env, const LocalRef<jobject>& uri) const

  767.     {

  768.         jassert (prepareFilesThread != nullptr);

  769. 

  770.         if (prepareFilesThread == nullptr)

  771.             return {};

  772. 

  773.         auto fullUri = juceString ((jstring) env->CallObjectMethod (uri.get(), AndroidUri.toString));

  774. 

  775.         auto index = fullUri.fromFirstOccurrenceOf (uriBase, false, false)

  776.                              .upToFirstOccurrenceOf ("/", false, true);

  777. 

  778.         auto filename = fullUri.fromLastOccurrenceOf ("/", false, true);

  779. 

  780.         return { index, filename, prepareFilesThread->getFilePaths()[index.getIntValue()] };

  781.     }

  782. 

  783.     static StringArray getSupportedColumns()

  784.     {

  785.         return StringArray ("_display_name", "_size");

  786.     }

  787. 

  788.     jobject getAssetFileDescriptor (JNIEnv* env, const LocalRef<jobject>& contentProvider,

  789.                                   const String& filepath)

  790.     {

  791.         // This function can be called from multiple threads.

  792.         {

  793.             const ScopedLock sl (nonAssetFileOpenLock);

  794. 

  795.             if (! nonAssetFilePathsPendingShare.contains (filepath))

  796.             {

  797.                 nonAssetFilePathsPendingShare.add (filepath);

  798.                 ++nonAssetFilesPendingShare;

  799. 

  800.                 nonAssetFileObservers.add (new AndroidContentSharerFileObserver (*this, env,

  801.                                                                                  contentProvider,

  802.                                                                                  filepath));

  803.             }

  804.         }

  805. 

  806.         auto javaFile = LocalRef<jobject> (env->NewObject (JavaFile, JavaFile.constructor,

  807.                                                            javaString (filepath).get()));

  808. 

  809.         constexpr int modeReadOnly = 268435456;

  810.         auto parcelFileDescriptor = LocalRef<jobject> (env->CallStaticObjectMethod (ParcelFileDescriptor,

  811.                                                                                     ParcelFileDescriptor.open,

  812.                                                                                     javaFile.get(), modeReadOnly));

  813. 

  814.         if (jniCheckHasExceptionOccurredAndClear())

  815.         {

  816.             // Failed to create file descriptor. Have you provided a valid file path/resource name?

  817.             jassertfalse;

  818.             return nullptr;

  819.         }

  820. 

  821.         jlong startOffset = 0;

  822.         jlong unknownLength = -1;

  823. 

  824.         assetFileDescriptors.add (GlobalRef (LocalRef<jobject> (env->NewObject (AssetFileDescriptor,

  825.                                                                                 AssetFileDescriptor.constructor,

  826.                                                                                 parcelFileDescriptor.get(),

  827.                                                                                 startOffset, unknownLength))));

  828. 

  829.         return assetFileDescriptors.getReference (assetFileDescriptors.size() - 1).get();

  830.     }

  831. 

  832.     ContentSharer& owner;

  833.     String packageName;

  834.     String uriBase;

  835. 

  836.     std::unique_ptr<AndroidContentSharerPrepareFilesThread> prepareFilesThread;

  837. 

  838.     bool succeeded = false;

  839.     String errorDescription;

  840. 

  841.     bool sharingActivityDidFinish = false;

  842. 

  843.     OwnedArray<AndroidContentSharerCursor> cursors;

  844. 

  845.     Array<GlobalRef> assetFileDescriptors;

  846. 

  847.     CriticalSection nonAssetFileOpenLock;

  848.     StringArray nonAssetFilePathsPendingShare;

  849.     Atomic<int> nonAssetFilesPendingShare { 0 };

  850.     OwnedArray<AndroidContentSharerFileObserver> nonAssetFileObservers;

  851. 

  852.     WeakReference<ContentSharerNativeImpl>::Master masterReference;

  853.     friend class WeakReference<ContentSharerNativeImpl>;

  854. 

  855.     //==============================================================================

  856.     #define JNI_CLASS_MEMBERS(METHOD, STATICMETHOD, FIELD, STATICFIELD, CALLBACK) \

  857.      CALLBACK (contentSharerQuery,          "contentSharerQuery",          "(Landroid/net/Uri;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;") \

  858.      CALLBACK (contentSharerOpenFile,       "contentSharerOpenFile",       "(Landroid/net/Uri;Ljava/lang/String;)Landroid/content/res/AssetFileDescriptor;") \

  859.      CALLBACK (contentSharerGetStreamTypes, "contentSharerGetStreamTypes", "(Landroid/net/Uri;Ljava/lang/String;)[Ljava/lang/String;") \

  860. 

  861. 

  862.     DECLARE_JNI_CLASS_WITH_BYTECODE (JuceSharingContentProvider, "com/roli/juce/JuceSharingContentProvider", 16, javaJuceSharingContentProvider, sizeof (javaJuceSharingContentProvider))

  863.     #undef JNI_CLASS_MEMBERS

  864. 

  865.     static jobject JNICALL contentSharerQuery (JNIEnv*, jobject contentProvider, jobject uri, jobjectArray projection,

  866.                                                jobject selection, jobjectArray selectionArgs, jobject sortOrder)

  867.     {

  868.         if (auto *pimpl = (ContentSharer::ContentSharerNativeImpl *) ContentSharer::getInstance ()->pimpl.get ())

  869.             return pimpl->query (LocalRef<jobject> (static_cast<jobject> (contentProvider)),

  870.                                  LocalRef<jobject> (static_cast<jobject> (uri)),

  871.                                  LocalRef<jobjectArray> (

  872.                                          static_cast<jobjectArray> (projection)),

  873.                                  LocalRef<jobject> (static_cast<jobject> (selection)),

  874.                                  LocalRef<jobjectArray> (

  875.                                          static_cast<jobjectArray> (selectionArgs)),

  876.                                  LocalRef<jobject> (static_cast<jobject> (sortOrder)));

  877. 

  878.         return nullptr;

  879.     }

  880. 

  881.     static jobject JNICALL contentSharerOpenFile (JNIEnv*, jobject contentProvider, jobject uri, jstring mode)

  882.     {

  883.         if (auto* pimpl = (ContentSharer::ContentSharerNativeImpl*) ContentSharer::getInstance()->pimpl.get())

  884.             return pimpl->openFile (LocalRef<jobject> (static_cast<jobject> (contentProvider)),

  885.                                     LocalRef<jobject> (static_cast<jobject> (uri)),

  886.                                     LocalRef<jstring> (static_cast<jstring> (mode)));

  887. 

  888.         return nullptr;

  889.     }

  890. 

  891.     static jobjectArray JNICALL contentSharerGetStreamTypes (JNIEnv*, jobject /*contentProvider*/, jobject uri, jstring mimeTypeFilter)

  892.     {

  893.         if (auto* pimpl = (ContentSharer::ContentSharerNativeImpl*) ContentSharer::getInstance()->pimpl.get())

  894.             return pimpl->getStreamTypes (LocalRef<jobject> (static_cast<jobject> (uri)),

  895.                                           LocalRef<jstring> (static_cast<jstring> (mimeTypeFilter)));

  896. 

  897.         return nullptr;

  898.     }

  899. };

  900. 

  901. //==============================================================================

  902. ContentSharer::Pimpl* ContentSharer::createPimpl()

  903. {

  904.     return new ContentSharerNativeImpl (*this);

  905. }

  906. 

  907. ContentSharer::ContentSharerNativeImpl::JuceSharingContentProvider_Class ContentSharer::ContentSharerNativeImpl::JuceSharingContentProvider;

  908. 

  909. } // namespace juce