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| 1 | +/* |
| 2 | + * Hello Minecraft! Launcher |
| 3 | + * Copyright (C) 2026 huangyuhui <huanghongxun2008@126.com> and contributors |
| 4 | + * |
| 5 | + * This program is free software: you can redistribute it and/or modify |
| 6 | + * it under the terms of the GNU General Public License as published by |
| 7 | + * the Free Software Foundation, either version 3 of the License, or |
| 8 | + * (at your option) any later version. |
| 9 | + * |
| 10 | + * This program is distributed in the hope that it will be useful, |
| 11 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | + * GNU General Public License for more details. |
| 14 | + * |
| 15 | + * You should have received a copy of the GNU General Public License |
| 16 | + * along with this program. If not, see <https://www.gnu.org/licenses/>. |
| 17 | + */ |
| 18 | +package org.jackhuang.hmcl.ui; |
| 19 | + |
| 20 | +import com.sun.jna.Pointer; |
| 21 | +import org.jackhuang.hmcl.util.platform.macos.ObjectiveCRuntime; |
| 22 | +import org.jetbrains.annotations.Nullable; |
| 23 | + |
| 24 | +import static org.jackhuang.hmcl.util.logging.Logger.LOG; |
| 25 | + |
| 26 | +public final class MacOSNativeUtils { |
| 27 | + |
| 28 | + private static final Pointer nsApp = init(); |
| 29 | + |
| 30 | + private static @Nullable Pointer init() { |
| 31 | + if (ObjectiveCRuntime.INSTANCE == null) { |
| 32 | + return null; |
| 33 | + } |
| 34 | + |
| 35 | + try { |
| 36 | + var objc = ObjectiveCRuntime.INSTANCE; |
| 37 | + |
| 38 | + Pointer nsApplication = objc.objc_getClass("NSApplication"); |
| 39 | + if (!isNull(nsApplication)) { |
| 40 | + Pointer sharedSel = objc.sel_registerName("sharedApplication"); |
| 41 | + if (!isNull(sharedSel)) |
| 42 | + return objc.objc_msgSend(nsApplication, sharedSel); |
| 43 | + } |
| 44 | + } catch (Throwable e) { |
| 45 | + LOG.warning("Failed to initialize macOS appearance support", e); |
| 46 | + } |
| 47 | + |
| 48 | + return null; |
| 49 | + } |
| 50 | + |
| 51 | + public static boolean isSupported() { |
| 52 | + return nsApp != null; |
| 53 | + } |
| 54 | + |
| 55 | + private static boolean isNull(Pointer pointer) { |
| 56 | + return pointer == null || Pointer.nativeValue(pointer) == 0; |
| 57 | + } |
| 58 | + |
| 59 | + public static void setAppearance(boolean dark) { |
| 60 | + setAppearance(dark, false); |
| 61 | + } |
| 62 | + |
| 63 | + public static void setAppearance(boolean dark, boolean highContrast) { |
| 64 | + if (nsApp == null) return; |
| 65 | + |
| 66 | + try { |
| 67 | + var objc = ObjectiveCRuntime.INSTANCE; |
| 68 | + |
| 69 | + Pointer nsAppearance = objc.objc_getClass("NSAppearance"); |
| 70 | + if (isNull(nsAppearance)) |
| 71 | + return; |
| 72 | + |
| 73 | + Pointer namedSel = objc.sel_registerName("appearanceNamed:"); |
| 74 | + Pointer nsString = objc.objc_getClass("NSString"); |
| 75 | + if (isNull(nsString)) return; |
| 76 | + |
| 77 | + Pointer sel = objc.sel_registerName("stringWithUTF8String:"); |
| 78 | + |
| 79 | + String appearanceName; |
| 80 | + if (highContrast) { |
| 81 | + appearanceName = dark ? "NSAppearanceNameAccessibilityHighContrastDarkAqua" : "NSAppearanceNameAccessibilityHighContrastAqua"; |
| 82 | + } else { |
| 83 | + appearanceName = dark ? "NSAppearanceNameDarkAqua" : "NSAppearanceNameAqua"; |
| 84 | + } |
| 85 | + |
| 86 | + Pointer appearanceNamePtr = objc.objc_msgSend(nsString, sel, appearanceName); |
| 87 | + if (isNull(appearanceNamePtr)) return; |
| 88 | + |
| 89 | + Pointer appearance = objc.objc_msgSend(nsAppearance, namedSel, appearanceNamePtr); |
| 90 | + if (isNull(appearance)) return; |
| 91 | + |
| 92 | + Pointer setSel = objc.sel_registerName("setAppearance:"); |
| 93 | + objc.objc_msgSend(nsApp, setSel, appearance); |
| 94 | + } catch (Throwable t) { |
| 95 | + LOG.warning("Failed to set macOS appearance", t); |
| 96 | + } |
| 97 | + } |
| 98 | + |
| 99 | + private MacOSNativeUtils() { |
| 100 | + } |
| 101 | +} |
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