add "hideWhenClose" property

Signed-off-by: Yuhang Zhao <2546789017@qq.com>

include/FramelessHelper/Quick/private/quickstandardtitlebar_p.h

@@ -51,6 +51,7 @@ class FRAMELESSHELPER_QUICK_API QuickStandardTitleBar : public QQuickRectangle
     Q_PROPERTY(QuickStandardSystemButton* closeButton READ closeButton CONSTANT FINAL)
     Q_PROPERTY(bool extended READ isExtended WRITE setExtended NOTIFY extendedChanged FINAL)
     Q_PROPERTY(bool useAlternativeBackground READ isUsingAlternativeBackground WRITE setUseAlternativeBackground NOTIFY useAlternativeBackgroundChanged FINAL)
+    Q_PROPERTY(bool hideWhenClose READ isHideWhenClose WRITE setHideWhenClose NOTIFY hideWhenCloseChanged FINAL)
 
 public:
     explicit QuickStandardTitleBar(QQuickItem *parent = nullptr);
@@ -70,6 +71,9 @@ public:
     Q_NODISCARD bool isUsingAlternativeBackground() const;
     void setUseAlternativeBackground(const bool value);
 
+    Q_NODISCARD bool isHideWhenClose() const;
+    void setHideWhenClose(const bool value);
+
 protected:
     void itemChange(const ItemChange change, const ItemChangeData &value) override;
     Q_NODISCARD bool eventFilter(QObject *object, QEvent *event) override;
@@ -87,6 +91,7 @@ Q_SIGNALS:
     void titleLabelAlignmentChanged();
     void extendedChanged();
     void useAlternativeBackgroundChanged();
+    void hideWhenCloseChanged();
 
 private:
     void initialize();
@@ -104,6 +109,7 @@ private:
     QMetaObject::Connection m_windowTitleChangeConnection = {};
     bool m_extended = false;
     bool m_useAlternativeBackground = false;
+    bool m_hideWhenClose = false;
 };
 
 FRAMELESSHELPER_END_NAMESPACE

include/FramelessHelper/Widgets/private/standardtitlebar_p.h

@@ -60,6 +60,9 @@ public:
     Q_NODISCARD bool isUsingAlternativeBackground() const;
     void setUseAlternativeBackground(const bool value);
 
+    Q_NODISCARD bool isHideWhenClose() const;
+    void setHideWhenClose(const bool value);
+
 public Q_SLOTS:
     void updateMaximizeButton();
     void updateTitleBarStyleSheet();
@@ -83,6 +86,7 @@ private:
     QSpacerItem *m_labelLeftStretch = nullptr;
     QSpacerItem *m_labelRightStretch = nullptr;
     bool m_useAlternativeBackground = false;
+    bool m_hideWhenClose = false;
 };
 
 FRAMELESSHELPER_END_NAMESPACE

include/FramelessHelper/Widgets/standardtitlebar.h

@@ -45,6 +45,7 @@ class FRAMELESSHELPER_WIDGETS_API StandardTitleBar : public QWidget
     Q_PROPERTY(StandardSystemButton* closeButton READ closeButton CONSTANT FINAL)
     Q_PROPERTY(bool extended READ isExtended WRITE setExtended NOTIFY extendedChanged FINAL)
     Q_PROPERTY(bool useAlternativeBackground READ isUsingAlternativeBackground WRITE setUseAlternativeBackground NOTIFY useAlternativeBackgroundChanged FINAL)
+    Q_PROPERTY(bool hideWhenClose READ isHideWhenClose WRITE setHideWhenClose NOTIFY hideWhenCloseChanged FINAL)
 
 public:
     explicit StandardTitleBar(QWidget *parent = nullptr);
@@ -64,6 +65,9 @@ public:
     Q_NODISCARD bool isUsingAlternativeBackground() const;
     void setUseAlternativeBackground(const bool value);
 
+    Q_NODISCARD bool isHideWhenClose() const;
+    void setHideWhenClose(const bool value);
+
 protected:
     void paintEvent(QPaintEvent *event) override;
 
@@ -71,6 +75,7 @@ Q_SIGNALS:
     void extendedChanged();
     void titleLabelAlignmentChanged();
     void useAlternativeBackgroundChanged();
+    void hideWhenCloseChanged();
 
 private:
     QScopedPointer<StandardTitleBarPrivate> d_ptr;

src/quick/quickstandardtitlebar.cpp

@@ -136,6 +136,20 @@ void QuickStandardTitleBar::setUseAlternativeBackground(const bool value)
     Q_EMIT useAlternativeBackgroundChanged();
 }
 
+bool QuickStandardTitleBar::isHideWhenClose() const
+{
+    return m_hideWhenClose;
+}
+
+void QuickStandardTitleBar::setHideWhenClose(const bool value)
+{
+    if (m_hideWhenClose == value) {
+        return;
+    }
+    m_hideWhenClose = value;
+    Q_EMIT hideWhenCloseChanged();
+}
+
 void QuickStandardTitleBar::updateMaximizeButton()
 {
     const QQuickWindow * const w = window();
@@ -237,7 +251,11 @@ void QuickStandardTitleBar::clickCloseButton()
     if (!w) {
         return;
     }
-    w->close();
+    if (m_hideWhenClose) {
+        w->hide();
+    } else {
+        w->close();
+    }
 }
 
 void QuickStandardTitleBar::retranslateUi()

src/widgets/standardtitlebar.cpp

@@ -139,6 +139,21 @@ void StandardTitleBarPrivate::setUseAlternativeBackground(const bool value)
     Q_EMIT q->useAlternativeBackgroundChanged();
 }
 
+bool StandardTitleBarPrivate::isHideWhenClose() const
+{
+    return m_hideWhenClose;
+}
+
+void StandardTitleBarPrivate::setHideWhenClose(const bool value)
+{
+    if (m_hideWhenClose == value) {
+        return;
+    }
+    m_hideWhenClose = value;
+    Q_Q(StandardTitleBar);
+    Q_EMIT q->hideWhenCloseChanged();
+}
+
 void StandardTitleBarPrivate::updateMaximizeButton()
 {
     const bool max = m_window->isMaximized();
@@ -251,7 +266,13 @@ void StandardTitleBarPrivate::initialize()
         }
     });
     m_closeButton.reset(new StandardSystemButton(SystemButtonType::Close, q));
-    connect(m_closeButton.data(), &StandardSystemButton::clicked, m_window, &QWidget::close);
+    connect(m_closeButton.data(), &StandardSystemButton::clicked, this, [this](){
+        if (m_hideWhenClose) {
+            m_window->hide();
+        } else {
+            m_window->close();
+        }
+    });
     m_labelLeftStretch = new QSpacerItem(0, 0);
     m_labelRightStretch = new QSpacerItem(0, 0);
     const auto titleLabelLayout = new QHBoxLayout;
@@ -355,6 +376,18 @@ void StandardTitleBar::setUseAlternativeBackground(const bool value)
     d->setUseAlternativeBackground(value);
 }
 
+bool StandardTitleBar::isHideWhenClose() const
+{
+    Q_D(const StandardTitleBar);
+    return d->isHideWhenClose();
+}
+
+void StandardTitleBar::setHideWhenClose(const bool value)
+{
+    Q_D(StandardTitleBar);
+    d->setHideWhenClose(value);
+}
+
 void StandardTitleBar::paintEvent(QPaintEvent *event)
 {
     Q_UNUSED(event);