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@@ -1,156 +1,157 b'' | |||
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1 | 1 | """Inputhook for OS X |
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2 | 2 | |
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3 | 3 | Calls NSApp / CoreFoundation APIs via ctypes. |
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4 | 4 | """ |
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5 | 5 | |
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6 | 6 | # obj-c boilerplate from appnope, used under BSD 2-clause |
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7 | 7 | |
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8 | 8 | import ctypes |
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9 | 9 | import ctypes.util |
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10 | 10 | from threading import Event |
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11 | 11 | |
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12 | 12 | objc = ctypes.cdll.LoadLibrary(ctypes.util.find_library('objc')) |
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13 | 13 | |
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14 | 14 | void_p = ctypes.c_void_p |
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15 | 15 | |
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16 | 16 | objc.objc_getClass.restype = void_p |
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17 | 17 | objc.sel_registerName.restype = void_p |
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18 | 18 | objc.objc_msgSend.restype = void_p |
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19 | 19 | objc.objc_msgSend.argtypes = [void_p, void_p] |
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20 | 20 | |
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21 | 21 | msg = objc.objc_msgSend |
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22 | 22 | |
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23 | 23 | def _utf8(s): |
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24 | 24 | """ensure utf8 bytes""" |
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25 | 25 | if not isinstance(s, bytes): |
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26 | 26 | s = s.encode('utf8') |
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27 | 27 | return s |
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28 | 28 | |
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29 | 29 | def n(name): |
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30 | 30 | """create a selector name (for ObjC methods)""" |
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31 | 31 | return objc.sel_registerName(_utf8(name)) |
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32 | 32 | |
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33 | 33 | def C(classname): |
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34 | 34 | """get an ObjC Class by name""" |
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35 | 35 | return objc.objc_getClass(_utf8(classname)) |
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36 | 36 | |
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37 | 37 | # end obj-c boilerplate from appnope |
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38 | 38 | |
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39 | 39 | # CoreFoundation C-API calls we will use: |
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40 | 40 | CoreFoundation = ctypes.cdll.LoadLibrary(ctypes.util.find_library('CoreFoundation')) |
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41 | 41 | |
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42 | 42 | CFFileDescriptorCreate = CoreFoundation.CFFileDescriptorCreate |
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43 | 43 | CFFileDescriptorCreate.restype = void_p |
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44 | 44 | CFFileDescriptorCreate.argtypes = [void_p, ctypes.c_int, ctypes.c_bool, void_p] |
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45 | 45 | |
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46 | 46 | CFFileDescriptorGetNativeDescriptor = CoreFoundation.CFFileDescriptorGetNativeDescriptor |
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47 | 47 | CFFileDescriptorGetNativeDescriptor.restype = ctypes.c_int |
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48 | 48 | CFFileDescriptorGetNativeDescriptor.argtypes = [void_p] |
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49 | 49 | |
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50 | 50 | CFFileDescriptorEnableCallBacks = CoreFoundation.CFFileDescriptorEnableCallBacks |
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51 | 51 | CFFileDescriptorEnableCallBacks.restype = None |
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52 | 52 | CFFileDescriptorEnableCallBacks.argtypes = [void_p, ctypes.c_ulong] |
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53 | 53 | |
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54 | 54 | CFFileDescriptorCreateRunLoopSource = CoreFoundation.CFFileDescriptorCreateRunLoopSource |
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55 | 55 | CFFileDescriptorCreateRunLoopSource.restype = void_p |
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56 | 56 | CFFileDescriptorCreateRunLoopSource.argtypes = [void_p, void_p, void_p] |
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57 | 57 | |
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58 | 58 | CFRunLoopGetCurrent = CoreFoundation.CFRunLoopGetCurrent |
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59 | 59 | CFRunLoopGetCurrent.restype = void_p |
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60 | 60 | |
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61 | 61 | CFRunLoopAddSource = CoreFoundation.CFRunLoopAddSource |
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62 | 62 | CFRunLoopAddSource.restype = None |
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63 | 63 | CFRunLoopAddSource.argtypes = [void_p, void_p, void_p] |
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64 | 64 | |
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65 | 65 | CFRelease = CoreFoundation.CFRelease |
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66 | 66 | CFRelease.restype = None |
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67 | 67 | CFRelease.argtypes = [void_p] |
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68 | 68 | |
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69 | 69 | CFFileDescriptorInvalidate = CoreFoundation.CFFileDescriptorInvalidate |
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70 | 70 | CFFileDescriptorInvalidate.restype = None |
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71 | 71 | CFFileDescriptorInvalidate.argtypes = [void_p] |
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72 | 72 | |
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73 | 73 | # From CFFileDescriptor.h |
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74 | 74 | kCFFileDescriptorReadCallBack = 1 |
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75 | 75 | kCFRunLoopCommonModes = void_p.in_dll(CoreFoundation, 'kCFRunLoopCommonModes') |
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76 | 76 | |
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77 | 77 | |
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78 | 78 | def _NSApp(): |
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79 | 79 | """Return the global NSApplication instance (NSApp)""" |
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80 | 80 | objc.objc_msgSend.argtypes = [void_p, void_p] |
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81 | 81 | return msg(C('NSApplication'), n('sharedApplication')) |
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82 | 82 | |
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83 | 83 | |
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84 | 84 | def _wake(NSApp): |
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85 | 85 | """Wake the Application""" |
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86 | 86 | objc.objc_msgSend.argtypes = [ |
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87 | 87 | void_p, |
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88 | 88 | void_p, |
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89 | 89 | void_p, |
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90 | 90 | void_p, |
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91 | 91 | void_p, |
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92 | 92 | void_p, |
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93 | 93 | void_p, |
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94 | 94 | void_p, |
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95 | 95 | void_p, |
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96 | 96 | void_p, |
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97 |
void_p |
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97 | void_p, | |
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98 | ] | |
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98 | 99 | event = msg( |
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99 | 100 | C("NSEvent"), |
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100 | 101 | n( |
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101 | 102 | "otherEventWithType:location:modifierFlags:" |
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102 | 103 | "timestamp:windowNumber:context:subtype:data1:data2:" |
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103 | 104 | ), |
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104 | 105 | 15, # Type |
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105 | 106 | 0, # location |
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106 | 107 | 0, # flags |
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107 | 108 | 0, # timestamp |
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108 | 109 | 0, # window |
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109 | 110 | None, # context |
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110 | 111 | 0, # subtype |
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111 | 112 | 0, # data1 |
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112 | 113 | 0, # data2 |
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113 | 114 | ) |
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114 | 115 | objc.objc_msgSend.argtypes = [void_p, void_p, void_p, void_p] |
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115 | 116 | msg(NSApp, n('postEvent:atStart:'), void_p(event), True) |
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116 | 117 | |
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117 | 118 | |
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118 | 119 | _triggered = Event() |
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119 | 120 | |
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120 | 121 | def _input_callback(fdref, flags, info): |
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121 | 122 | """Callback to fire when there's input to be read""" |
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122 | 123 | _triggered.set() |
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123 | 124 | CFFileDescriptorInvalidate(fdref) |
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124 | 125 | CFRelease(fdref) |
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125 | 126 | NSApp = _NSApp() |
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126 | 127 | objc.objc_msgSend.argtypes = [void_p, void_p, void_p] |
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127 | 128 | msg(NSApp, n('stop:'), NSApp) |
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128 | 129 | _wake(NSApp) |
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129 | 130 | |
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130 | 131 | _c_callback_func_type = ctypes.CFUNCTYPE(None, void_p, void_p, void_p) |
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131 | 132 | _c_input_callback = _c_callback_func_type(_input_callback) |
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132 | 133 | |
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133 | 134 | |
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134 | 135 | def _stop_on_read(fd): |
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135 | 136 | """Register callback to stop eventloop when there's data on fd""" |
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136 | 137 | _triggered.clear() |
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137 | 138 | fdref = CFFileDescriptorCreate(None, fd, False, _c_input_callback, None) |
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138 | 139 | CFFileDescriptorEnableCallBacks(fdref, kCFFileDescriptorReadCallBack) |
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139 | 140 | source = CFFileDescriptorCreateRunLoopSource(None, fdref, 0) |
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140 | 141 | loop = CFRunLoopGetCurrent() |
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141 | 142 | CFRunLoopAddSource(loop, source, kCFRunLoopCommonModes) |
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142 | 143 | CFRelease(source) |
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143 | 144 | |
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144 | 145 | |
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145 | 146 | def inputhook(context): |
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146 | 147 | """Inputhook for Cocoa (NSApp)""" |
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147 | 148 | NSApp = _NSApp() |
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148 | 149 | _stop_on_read(context.fileno()) |
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149 | 150 | objc.objc_msgSend.argtypes = [void_p, void_p] |
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150 | 151 | msg(NSApp, n('run')) |
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151 | 152 | if not _triggered.is_set(): |
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152 | 153 | # app closed without firing callback, |
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153 | 154 | # probably due to last window being closed. |
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154 | 155 | # Run the loop manually in this case, |
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155 | 156 | # since there may be events still to process (#9734) |
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156 | 157 | CoreFoundation.CFRunLoopRun() |
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