From 327055934009dc416be6234db8e4d26fab81fb80 Mon Sep 17 00:00:00 2001
From: SineStriker <55847490+SineStriker@users.noreply.github.com>
Date: 周四, 21 12月 2023 23:21:28 +0800
Subject: [PATCH] Merge pull request #8 from stdware/stylesupport

---
 src/stylesupport/styleagent.cpp |   83 +++++++++++++++++++++++++++++++++++++++++
 1 files changed, 83 insertions(+), 0 deletions(-)

diff --git a/src/stylesupport/styleagent.cpp b/src/stylesupport/styleagent.cpp
new file mode 100644
index 0000000..d24186f
--- /dev/null
+++ b/src/stylesupport/styleagent.cpp
@@ -0,0 +1,83 @@
+#include "styleagent.h"
+#include "styleagent_p.h"
+
+#include <QtCore/QVariant>
+
+namespace QWK {
+
+    StyleAgentPrivate::StyleAgentPrivate() {
+    }
+
+    StyleAgentPrivate::~StyleAgentPrivate() = default;
+
+    void StyleAgentPrivate::init() {
+    }
+
+    void StyleAgentPrivate::notifyThemeChanged(StyleAgent::SystemTheme theme) {
+        if (theme == systemTheme)
+            return;
+        systemTheme = theme;
+
+        Q_Q(StyleAgent);
+        Q_EMIT q->systemThemeChanged();
+    }
+
+    void StyleAgentPrivate::_q_windowDestroyed() {
+        windowAttributes.remove(static_cast<QWindow *>(sender()));
+    }
+
+    StyleAgent::StyleAgent(QObject *parent) : StyleAgent(*new StyleAgentPrivate(), parent) {
+        Q_D(StyleAgent);
+        d->setupSystemThemeHook();
+    }
+
+    StyleAgent::~StyleAgent() {
+        Q_D(StyleAgent);
+        d->removeSystemThemeHook();
+    }
+
+    StyleAgent::SystemTheme StyleAgent::systemTheme() const {
+        Q_D(const StyleAgent);
+        return d->systemTheme;
+    }
+
+    QVariant StyleAgent::windowAttribute(QWindow *window, const QString &key) const {
+        Q_D(const StyleAgent);
+        return d->windowAttributes.value(window).value(key);
+    }
+
+    bool StyleAgent::setWindowAttribute(QWindow *window, const QString &key,
+                                        const QVariant &attribute) {
+        Q_D(StyleAgent);
+        if (!window)
+            return false;
+
+        auto it = d->windowAttributes.find(window);
+        if (it == d->windowAttributes.end()) {
+            if (!attribute.isValid())
+                return true;
+            if (!d->updateWindowAttribute(window, key, attribute, {}))
+                return false;
+            connect(window, &QWindow::destroyed, d, &StyleAgentPrivate::_q_windowDestroyed);
+            d->windowAttributes.insert(window, QVariantHash{
+                                                   {key, attribute}
+            });
+        } else {
+            auto &attributes = it.value();
+            auto oldAttribute = attributes.value(key);
+            if (oldAttribute == attribute)
+                return true;
+            if (!d->updateWindowAttribute(window, key, attribute, oldAttribute))
+                return false;
+            attributes.insert(key, attribute);
+        }
+        return true;
+    }
+
+    StyleAgent::StyleAgent(StyleAgentPrivate &d, QObject *parent) : QObject(parent), d_ptr(&d) {
+        d.q_ptr = this;
+
+        d.init();
+    }
+
+}

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