Allow custom parsers to handle attached properties

QTBUG-11283

3 files changed, 23 insertions, 5 deletions

diff --git a/src/declarative/qml/qdeclarativecompiler.cpp b/src/declarative/qml/qdeclarativecompiler.cpp
index 60128b7..6917a5b 100644
--- a/src/declarative/qml/qdeclarativecompiler.cpp
+++ b/src/declarative/qml/qdeclarativecompiler.cpp
@@ -815,6 +815,10 @@ bool QDeclarativeCompiler::buildObject(Object *obj, const BindingContext &ctxt)
         }
     }
 
+    QDeclarativeCustomParser *cp = 0;
+    if (isCustomParser)
+        cp = output->types.at(obj->type).type->customParser();
+
     // Build all explicit properties specified
     foreach(Property *prop, obj->properties) {
 
@@ -825,7 +829,9 @@ bool QDeclarativeCompiler::buildObject(Object *obj, const BindingContext &ctxt)
 
         bool canDefer = false;
         if (isCustomParser) {
-            if (doesPropertyExist(prop, obj)) {
+            if (doesPropertyExist(prop, obj) && 
+                (!(cp->flags() & QDeclarativeCustomParser::AcceptsAttachedProperties) ||
+                 !isAttachedPropertyName(prop->name))) {
                 int ids = compileState.ids.count();
                 COMPILE_CHECK(buildProperty(prop, obj, objCtxt));
                 canDefer = ids == compileState.ids.count();
@@ -876,8 +882,7 @@ bool QDeclarativeCompiler::buildObject(Object *obj, const BindingContext &ctxt)
         defaultProperty->release();
 
     // Compile custom parser parts
-    if (isCustomParser/* && !customProps.isEmpty()*/) {
-        QDeclarativeCustomParser *cp = output->types.at(obj->type).type->customParser();
+    if (isCustomParser && !customProps.isEmpty()) {
         cp->clearErrors();
         cp->compiler = this;
         cp->object = obj;
@@ -1356,7 +1361,7 @@ bool QDeclarativeCompiler::buildSignal(QDeclarativeParser::Property *prop, QDecl
     Returns true if (value) property \a prop exists on obj, false otherwise.
 */
 bool QDeclarativeCompiler::doesPropertyExist(QDeclarativeParser::Property *prop,
-                                    QDeclarativeParser::Object *obj)
+                                             QDeclarativeParser::Object *obj)
 {
     if(isAttachedPropertyName(prop->name) || prop->name == "id")
         return true;
diff --git a/src/declarative/qml/qdeclarativecustomparser_p.h b/src/declarative/qml/qdeclarativecustomparser_p.h
index 0e397c5..1a746b4 100644
--- a/src/declarative/qml/qdeclarativecustomparser_p.h
+++ b/src/declarative/qml/qdeclarativecustomparser_p.h
@@ -113,10 +113,18 @@ private:
 class Q_DECLARATIVE_EXPORT QDeclarativeCustomParser
 {
 public:
-    QDeclarativeCustomParser() : compiler(0), object(0) {}
+    enum Flag {
+        NoFlag                    = 0x00000000,
+        AcceptsAttachedProperties = 0x00000001
+    };
+    Q_DECLARE_FLAGS(Flags, Flag);
+
+    QDeclarativeCustomParser() : compiler(0), object(0), m_flags(NoFlag) {}
+    QDeclarativeCustomParser(Flags f) : compiler(0), object(0), m_flags(f) {}
     virtual ~QDeclarativeCustomParser() {}
 
     void clearErrors();
+    Flags flags() const { return m_flags; }
 
     virtual QByteArray compile(const QList<QDeclarativeCustomParserProperty> &)=0;
     virtual void setCustomData(QObject *, const QByteArray &)=0;
@@ -134,8 +142,10 @@ private:
     QList<QDeclarativeError> exceptions;
     QDeclarativeCompiler *compiler;
     QDeclarativeParser::Object *object;
+    Flags m_flags;
     friend class QDeclarativeCompiler;
 };
+Q_DECLARE_OPERATORS_FOR_FLAGS(QDeclarativeCustomParser::Flags);
 
 #if 0
 #define QML_REGISTER_CUSTOM_TYPE(URI, VERSION_MAJ, VERSION_MIN, NAME, TYPE, CUSTOMTYPE) \
diff --git a/src/declarative/util/qdeclarativepropertychanges_p.h b/src/declarative/util/qdeclarativepropertychanges_p.h
index c2ed466..bb0f944 100644
--- a/src/declarative/util/qdeclarativepropertychanges_p.h
+++ b/src/declarative/util/qdeclarativepropertychanges_p.h
@@ -79,6 +79,9 @@ public:
 class QDeclarativePropertyChangesParser : public QDeclarativeCustomParser
 {
 public:
+    QDeclarativePropertyChangesParser()
+    : QDeclarativeCustomParser(AcceptsAttachedProperties) {}
+
     void compileList(QList<QPair<QByteArray, QVariant> > &list, const QByteArray &pre, const QDeclarativeCustomParserProperty &prop);
 
     virtual QByteArray compile(const QList<QDeclarativeCustomParserProperty> &);