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annotate src/sys/osx/dark_theme.cc @ 194:8548dc425697

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sys/osx: remove all objective-c++ stuff mmmm :)
author Paper <mrpapersonic@gmail.com>
date Thu, 07 Dec 2023 03:17:05 -0500
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children 975a3f0965e2
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8548dc425697 sys/osx: remove all objective-c++ stuff
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1 #include "sys/osx/dark_theme.h"
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2
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3 #include <objc/runtime.h>
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4 #include <objc/message.h>
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5
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6 #include <CoreFoundation/CoreFoundation.h>
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7 #include <AvailabilityMacros.h>
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8
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9 #include <QOperatingSystemVersion>
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10
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11 namespace osx {
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12
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13 typedef id (*object_message_send)(id, SEL, ...);
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14 typedef id (*class_message_send)(Class, SEL, ...);
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15
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16 static const object_message_send obj_send = reinterpret_cast<object_message_send>(objc_msgSend);
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17 static const class_message_send cls_send = reinterpret_cast<class_message_send>(objc_msgSend);
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18
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19 static CFStringRef NSAppearanceNameAqua = nullptr;
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20 static CFStringRef NSAppearanceNameDarkAqua = nullptr;
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21
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22 static const CFStringRef kLaunchServicesBundleID = CFSTR("com.apple.AppKit");
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23
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24 bool RetrieveAppearanceNames() {
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25 CFBundleRef appkit_bundle = CFBundleGetBundleWithIdentifier(kLaunchServicesBundleID);
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26 if (!appkit_bundle)
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27 return false;
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28
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29 NSAppearanceNameAqua = *reinterpret_cast<CFStringRef*>(CFBundleGetDataPointerForName(appkit_bundle, CFSTR("NSAppearanceNameAqua")));
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30 if (!NSAppearanceNameAqua)
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31 return false;
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32
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33 NSAppearanceNameDarkAqua = *reinterpret_cast<CFStringRef*>(CFBundleGetDataPointerForName(appkit_bundle, CFSTR("NSAppearanceNameDarkAqua")));
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34 if (!NSAppearanceNameDarkAqua)
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35 return false;
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36
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37 return true;
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38 }
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39
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40 bool DarkThemeAvailable() {
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41 return (QOperatingSystemVersion::current() >= QOperatingSystemVersion::MacOSMojave);
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42 }
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43
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44 bool IsInDarkTheme() {
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45 if (!DarkThemeAvailable())
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46 return false;
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47
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48 if (!NSAppearanceNameAqua || !NSAppearanceNameDarkAqua)
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49 if (!RetrieveAppearanceNames())
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50 return false;
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51
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52 CFArrayRef array = []() -> CFArrayRef {
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53 CFStringRef refs[] = {NSAppearanceNameAqua, NSAppearanceNameDarkAqua};
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54 return CFArrayCreate(NULL, reinterpret_cast<const void**>(refs), 2, &kCFTypeArrayCallBacks);
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55 }();
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56
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57 // NSApplication* app = [NSApplication sharedApplication];
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58 const id app = cls_send(objc_getClass("NSApplication"), sel_getUid("sharedApplication"));
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59
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60 // NSAppearance* effectiveAppearance = [app effectiveAppearance];
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61 const id effectiveAppearance = obj_send(app, sel_getUid("effectiveAppearance"));
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62 if (!effectiveAppearance) {
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63 CFRelease(array);
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64 return false;
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65 }
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66
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67 // NSAppearance* appearance = [effectiveAppearance bestMatchFromAppearancesWithNames: array];
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68 const id appearance = obj_send(effectiveAppearance, sel_getUid("bestMatchFromAppearancesWithNames:"), array);
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69
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70 CFRelease(array);
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71
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72 if (!appearance)
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73 return false;
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74
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75 return CFEqual(appearance, NSAppearanceNameDarkAqua);
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76 }
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77
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78 bool SetToDarkTheme() {
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79 // https://stackoverflow.com/questions/55925862/how-can-i-set-my-os-x-application-theme-in-code
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80 if (!DarkThemeAvailable())
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81 return false;
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82
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83 if (!NSAppearanceNameAqua || !NSAppearanceNameDarkAqua)
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84 if (!RetrieveAppearanceNames())
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85 return false;
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86
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87 // NSApplication* app = [NSApplication sharedApplication];
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88 const id app = cls_send(objc_getClass("NSApplication"), sel_getUid("sharedApplication"));
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89
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90 // NSAppearance* appearance = [NSAppearance appearanceNamed: NSAppearanceNameDarkAqua];
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91 const id appearance = cls_send(objc_getClass("NSAppearance"), sel_getUid("appearanceNamed:"), NSAppearanceNameDarkAqua);
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92 if (!appearance)
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93 return false;
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94
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95 // [app setAppearance: appearance];
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96 obj_send(app, sel_getUid("setAppearance:"), appearance);
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97 return true;
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98 }
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99
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100 bool SetToLightTheme() {
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101 // https://stackoverflow.com/questions/55925862/how-can-i-set-my-os-x-application-theme-in-code
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102 if (!DarkThemeAvailable())
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103 return false;
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104
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105 if (!NSAppearanceNameAqua || !NSAppearanceNameDarkAqua)
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106 if (!RetrieveAppearanceNames())
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107 return false;
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108
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109 // NSApplication* app = [NSApplication sharedApplication];
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110 const id app = cls_send(objc_getClass("NSApplication"), sel_getUid("sharedApplication"));
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111
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112 // NSAppearance* appearance = [NSAppearance appearanceNamed: NSAppearanceNameDarkAqua];
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113 const id appearance = cls_send(objc_getClass("NSAppearance"), sel_getUid("appearanceNamed:"), NSAppearanceNameAqua);
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114 if (!appearance)
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115 return false;
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116
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117 // [app setAppearance: appearance];
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118 obj_send(app, sel_getUid("setAppearance:"), appearance);
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119 return true;
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120 }
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121
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122 void SetToAutoTheme() {
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123 if (!DarkThemeAvailable())
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124 return;
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125
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126 // NSApplication* app = [NSApplication sharedApplication];
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127 const id app = cls_send(objc_getClass("NSApplication"), sel_getUid("sharedApplication"));
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128
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129 // [app setAppearance: null];
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130 obj_send(app, sel_getUid("setAppearance:"), nullptr);
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131 }
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132
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133 } // namespace osx