page_context.hpp

#pragma once
 
#include <QtCore/QList>
#include <QtCore/QMetaObject>
#include <QtCore/QPointer>
#include <QtQml/QQmlEngine>
 
namespace qml_material
{
class PageContext : public QObject {
    Q_OBJECT
    QML_ELEMENT
    Q_PROPERTY(PageContext* inherit READ inherit WRITE setInherit NOTIFY inheritChanged FINAL)
    Q_PROPERTY(QObject* leadingAction READ leadingAction WRITE setLeadingAction RESET
                   resetLeadingAction NOTIFY leadingActionChanged FINAL)
    Q_PROPERTY(qint32 headerType READ headerType WRITE setHeaderType RESET resetHeaderType NOTIFY
                   headerTypeChanged FINAL)
    Q_PROPERTY(qint32 backgroundRadius READ backgroundRadius WRITE setBackgroundRadius RESET
                   resetBackgroundRadius NOTIFY backgroundRadiusChanged FINAL)
    Q_PROPERTY(
        double headerBackgroundOpacity READ headerBackgroundOpacity WRITE setHeaderBackgroundOpacity
            RESET resetHeaderBackgroundOpacity NOTIFY headerBackgroundOpacityChanged FINAL)
    Q_PROPERTY(
        qint32 radius READ radius WRITE setRadius RESET resetRadius NOTIFY radiusChanged FINAL)
    Q_PROPERTY(bool showHeader READ showHeader WRITE setShowHeader RESET resetShowHeader NOTIFY
                   showHeaderChanged FINAL)
    Q_PROPERTY(bool showBackground READ showBackground WRITE setShowBackground RESET
                   resetShowBackground NOTIFY showBackgroundChanged FINAL)
    Q_PROPERTY(qint32 leftMargin READ leftMargin WRITE setLeftMargin RESET resetLeftMargin NOTIFY
                   leftMarginChanged FINAL)
    Q_PROPERTY(qint32 rightMargin READ rightMargin WRITE setRightMargin RESET resetRightMargin
                   NOTIFY rightMarginChanged FINAL)
    Q_PROPERTY(qint32 topMargin READ topMargin WRITE setTopMargin RESET resetTopMargin NOTIFY
                   topMarginChanged FINAL)
    Q_PROPERTY(qint32 bottomMargin READ bottomMargin WRITE setBottomMargin RESET resetBottomMargin
                   NOTIFY bottomMarginChanged FINAL)
public:
    PageContext(QObject* parent = nullptr);
    ~PageContext();
 
    auto inherit() const -> PageContext*;
    auto leadingAction() const -> QObject*;
    auto backgroundRadius() const -> qint32;
    auto headerBackgroundOpacity() const -> double;
    auto radius() const -> qint32;
    auto headerType() const -> qint32;
    auto showHeader() const -> bool;
    auto showBackground() const -> bool;
    auto leftMargin() const -> qint32;
    auto rightMargin() const -> qint32;
    auto topMargin() const -> qint32;
    auto bottomMargin() const -> qint32;
 
    Q_SLOT void setInherit(PageContext*);
    Q_SLOT void setLeadingAction(QObject*);
    Q_SLOT void setBackgroundRadius(qint32);
    Q_SLOT void setHeaderBackgroundOpacity(double);
    Q_SLOT void setRadius(qint32);
    Q_SLOT void setHeaderType(qint32);
    Q_SLOT void setShowHeader(bool);
    Q_SLOT void setShowBackground(bool);
    Q_SLOT void setLeftMargin(qint32);
    Q_SLOT void setRightMargin(qint32);
    Q_SLOT void setTopMargin(qint32);
    Q_SLOT void setBottomMargin(qint32);
 
    Q_SLOT void resetLeadingAction();
    Q_SLOT void resetBackgroundRadius();
    Q_SLOT void resetHeaderBackgroundOpacity();
    Q_SLOT void resetRadius();
    Q_SLOT void resetHeaderType();
    Q_SLOT void resetShowHeader();
    Q_SLOT void resetShowBackground();
    Q_SLOT void resetLeftMargin();
    Q_SLOT void resetRightMargin();
    Q_SLOT void resetTopMargin();
    Q_SLOT void resetBottomMargin();
 
    Q_SIGNAL void inheritChanged();
    Q_SIGNAL void leadingActionChanged();
    Q_SIGNAL void backgroundRadiusChanged();
    Q_SIGNAL void headerBackgroundOpacityChanged();
    Q_SIGNAL void radiusChanged();
    Q_SIGNAL void headerTypeChanged();
    Q_SIGNAL void showHeaderChanged();
    Q_SIGNAL void showBackgroundChanged();
    Q_SIGNAL void leftMarginChanged();
    Q_SIGNAL void rightMarginChanged();
    Q_SIGNAL void topMarginChanged();
    Q_SIGNAL void bottomMarginChanged();
 
    Q_SIGNAL void pushItem(const QJSValue& url_or_comp, const QVariantMap& props = {});
    Q_SIGNAL void pop();
 
private:
    void disconnectInherit();
    void notifyInheritedProperties();
 
    QPointer<PageContext>          m_inherit;
    QList<QMetaObject::Connection> m_inherit_connections;
 
    std::optional<QObject*> m_leading_action;
    std::optional<qint32>   m_header_type;
    std::optional<qint32>   m_background_radius;
    std::optional<double>   m_header_background_opacity;
    std::optional<qint32>   m_radius;
    std::optional<bool>     m_show_header;
    std::optional<bool>     m_show_background;
    std::optional<qint32>   m_left_margin;
    std::optional<qint32>   m_right_margin;
    std::optional<qint32>   m_top_margin;
    std::optional<qint32>   m_bottom_margin;
};
} // namespace qml_material