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annotate src/sys/osx/dark_theme.cc @ 198:bc1ae1810855

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dep/animia: switch from using classes to global functions the old idea was ok, but sort of hackish; this method doesn't use classes at all, and this way (especially important!) we can do wayland stuff AND x11 at the same time, which wasn't really possible without stupid workarounds in the other method
author Paper <mrpapersonic@gmail.com>
date Sun, 24 Dec 2023 02:59:42 -0500
parents f0ff06a45c42
children 862d0d8619f6
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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
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8 #include <QOperatingSystemVersion>
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9
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10 namespace osx {
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11
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12 typedef id (*object_message_send)(id, SEL, ...);
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13 typedef id (*class_message_send)(Class, SEL, ...);
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14
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15 static const object_message_send obj_send = reinterpret_cast<object_message_send>(objc_msgSend);
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16 static const class_message_send cls_send = reinterpret_cast<class_message_send>(objc_msgSend);
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17
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18 static CFStringRef NSAppearanceNameAqua = nullptr;
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19 static CFStringRef NSAppearanceNameDarkAqua = nullptr;
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20
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21 static const CFStringRef kAppKitBundleID = CFSTR("com.apple.AppKit");
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22
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23 bool RetrieveAppearanceNames() {
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24 CFBundleRef appkit_bundle = CFBundleGetBundleWithIdentifier(kAppKitBundleID);
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25 if (!appkit_bundle)
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26 return false;
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27
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28 NSAppearanceNameAqua = *reinterpret_cast<CFStringRef*>(CFBundleGetDataPointerForName(appkit_bundle, CFSTR("NSAppearanceNameAqua")));
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29 if (!NSAppearanceNameAqua)
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30 return false;
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31
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32 NSAppearanceNameDarkAqua = *reinterpret_cast<CFStringRef*>(CFBundleGetDataPointerForName(appkit_bundle, CFSTR("NSAppearanceNameDarkAqua")));
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33 if (!NSAppearanceNameDarkAqua)
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34 return false;
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35
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36 return true;
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37 }
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38
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39 bool DarkThemeAvailable() {
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40 return (QOperatingSystemVersion::current() >= QOperatingSystemVersion::MacOSMojave);
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41 }
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42
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43 bool IsInDarkTheme() {
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44 if (!DarkThemeAvailable())
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45 return false;
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46
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47 if (!NSAppearanceNameAqua || !NSAppearanceNameDarkAqua)
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48 if (!RetrieveAppearanceNames())
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49 return false;
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50
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51 // NSArray* array = @[NSAppearanceNameAqua, NSAppearanceNameDarkAqua];
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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