77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
#ifndef LISTVIEWFOCUSCONTROLLER_H
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#define LISTVIEWFOCUSCONTROLLER_H
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#include <QObject>
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#include <QStack>
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#include <QSharedPointer>
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#include <QQuickItem>
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bool isEnabled(QObject* item);
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bool isFocusable(QObject* item);
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bool isMore(QObject* item1, QObject* item2);
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bool isLess(QObject* item1, QObject* item2);
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QList<QObject*> getSubChain(QObject* object);
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void printItems(const QList<QObject*>& items, QObject* current_item);
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/*!
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* \brief The ListViewFocusController class manages the focus of elements in ListView
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* \details This class object moving focus to ListView's controls since ListView stores
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* it's data implicitly and it could be got one by one.
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*
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* This class was made to store as less as possible data getting it from QML
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* when it's needed.
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*/
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class ListViewFocusController : public QObject
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{
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Q_OBJECT
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public:
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explicit ListViewFocusController(QQuickItem* listView, QObject* parent = nullptr);
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~ListViewFocusController();
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void nextDelegate();
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void previousDelegate();
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void decrementIndex();
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void focusNextItem();
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void focusPreviousItem();
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void resetFocusChain();
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bool isFirstFocusItemInListView() const;
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bool isFirstFocusItemInDelegate() const;
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bool isLastFocusItemInListView() const;
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bool isLastFocusItemInDelegate() const;
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bool isReturnNeeded() const;
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private:
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enum class Section {
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Default,
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Header,
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Delegate,
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Footer,
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};
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int size() const;
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int currentIndex() const;
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void setDelegateIndex(int index);
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void viewAtCurrentIndex() const;
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QQuickItem* itemAtIndex(const int index) const;
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QQuickItem* currentDelegate() const;
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QQuickItem* focusedItem() const;
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bool hasHeader() const;
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bool hasFooter() const;
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QQuickItem* m_listView;
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QList<QObject*> m_focusChain;
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Section m_currentSection;
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QQuickItem* m_header;
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QQuickItem* m_footer;
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QQuickItem* m_focusedItem; // Pointer to focused item on Delegate
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qsizetype m_focusedItemIndex;
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qsizetype m_delegateIndex;
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bool m_isReturnNeeded;
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QList<QString> m_currentSectionString;
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};
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#endif // LISTVIEWFOCUSCONTROLLER_H
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