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