// Copyright (C) 2023-2024 Stdware Collections
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// SPDX-License-Identifier: Apache-2.0
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#include "styleagent_p.h"
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#include <Cocoa/Cocoa.h>
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#include <QtCore/QVariant>
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namespace QWK {
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static StyleAgent::SystemTheme getSystemTheme() {
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NSString *osxMode =
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[[NSUserDefaults standardUserDefaults] stringForKey:@"AppleInterfaceStyle"];
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bool isDark = [osxMode isEqualToString:@"Dark"];
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return isDark ? StyleAgent::Dark : StyleAgent::Light;
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}
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static void notifyAllStyleAgents();
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}
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//
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// Objective C++ Begin
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//
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@interface QWK_SystemThemeObserver : NSObject {
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}
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@end
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@implementation QWK_SystemThemeObserver
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- (id)init {
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self = [super init];
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if (self) {
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[[NSDistributedNotificationCenter defaultCenter]
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addObserver:self
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selector:@selector(interfaceModeChanged:)
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name:@"AppleInterfaceThemeChangedNotification"
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object:nil];
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}
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return self;
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}
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- (void)dealloc {
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[[NSDistributedNotificationCenter defaultCenter] removeObserver:self];
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[super dealloc];
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}
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- (void)interfaceModeChanged:(NSNotification *)notification {
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QWK::notifyAllStyleAgents();
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}
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@end
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//
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// Objective C++ End
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//
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namespace QWK {
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using StyleAgentSet = QSet<StyleAgentPrivate *>;
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Q_GLOBAL_STATIC(StyleAgentSet, g_styleAgentSet)
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static QWK_SystemThemeObserver *g_systemThemeObserver = nil;
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void notifyAllStyleAgents() {
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auto theme = getSystemTheme();
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for (auto &&ap : std::as_const(*g_styleAgentSet())) {
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ap->notifyThemeChanged(theme);
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}
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}
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void StyleAgentPrivate::setupSystemThemeHook() {
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systemTheme = getSystemTheme();
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// Alloc
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if (g_styleAgentSet->isEmpty()) {
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g_systemThemeObserver = [[QWK_SystemThemeObserver alloc] init];
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}
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g_styleAgentSet->insert(this);
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}
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void StyleAgentPrivate::removeSystemThemeHook() {
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if (!g_styleAgentSet->remove(this))
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return;
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if (g_styleAgentSet->isEmpty()) {
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// Delete
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[g_systemThemeObserver release];
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g_systemThemeObserver = nil;
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}
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}
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}
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