TextEditor: Add modified handling

Add a modified property to the document and add
handling in onClosing(). Connect the actions to
call close() instead of Qt.quit() for it to
become active.

Change-Id: I0fec75629db64e91508ed8ba45d4fb60be146b1b
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 7 insertions, 0 deletions

diff --git a/examples/quickcontrols2/texteditor/documenthandler.h b/examples/quickcontrols2/texteditor/documenthandler.h
index a6125bc3..97e55658 100644
--- a/examples/quickcontrols2/texteditor/documenthandler.h
+++ b/examples/quickcontrols2/texteditor/documenthandler.h
@@ -84,6 +84,8 @@ class DocumentHandler : public QObject
     Q_PROPERTY(QString fileType READ fileType NOTIFY fileUrlChanged)
     Q_PROPERTY(QUrl fileUrl READ fileUrl NOTIFY fileUrlChanged)
 
+    Q_PROPERTY(bool modified READ modified WRITE setModified NOTIFY modifiedChanged)
+
 public:
     explicit DocumentHandler(QObject *parent = nullptr);
 
@@ -124,6 +126,9 @@ public:
     QString fileType() const;
     QUrl fileUrl() const;
 
+    bool modified() const;
+    void setModified(bool m);
+
 public Q_SLOTS:
     void load(const QUrl &fileUrl);
     void saveAs(const QUrl &fileUrl);
@@ -150,6 +155,8 @@ Q_SIGNALS:
     void loaded(const QString &text);
     void error(const QString &message);
 
+    void modifiedChanged();
+
 private:
     void reset();
     QTextCursor textCursor() const;