Allow property bindings to be easily created from JavaScript

Properties can now be assigned a function that returns the binding
value.

Task-number: QTBUG-14964
Reviewed-by: Aaron Kennedy

1 files changed, 9 insertions, 0 deletions

diff --git a/src/declarative/qml/qdeclarativebinding_p.h b/src/declarative/qml/qdeclarativebinding_p.h
index 19e7099..0260b95 100644
--- a/src/declarative/qml/qdeclarativebinding_p.h
+++ b/src/declarative/qml/qdeclarativebinding_p.h
@@ -147,14 +147,21 @@ class Q_DECLARATIVE_PRIVATE_EXPORT QDeclarativeBinding : public QDeclarativeExpr
 {
 Q_OBJECT
 public:
+    enum EvaluateFlag { RequiresThisObject = 0x01 };
+    Q_DECLARE_FLAGS(EvaluateFlags, EvaluateFlag)
+
     QDeclarativeBinding(const QString &, QObject *, QDeclarativeContext *, QObject *parent=0);
     QDeclarativeBinding(const QString &, QObject *, QDeclarativeContextData *, QObject *parent=0);
     QDeclarativeBinding(void *, QDeclarativeRefCount *, QObject *, QDeclarativeContextData *, 
                         const QString &, int, QObject *parent);
+    QDeclarativeBinding(const QScriptValue &, QObject *, QDeclarativeContextData *, QObject *parent=0);
 
     void setTarget(const QDeclarativeProperty &);
     QDeclarativeProperty property() const;
 
+    void setEvaluateFlags(EvaluateFlags flags);
+    EvaluateFlags evaluateFlags() const;
+
     bool enabled() const;
 
     // Inherited from  QDeclarativeAbstractBinding
@@ -177,6 +184,8 @@ private:
     Q_DECLARE_PRIVATE(QDeclarativeBinding)
 };
 
+Q_DECLARE_OPERATORS_FOR_FLAGS(QDeclarativeBinding::EvaluateFlags)
+
 QT_END_NAMESPACE
 
 Q_DECLARE_METATYPE(QDeclarativeBinding*)