Small fixes to delegate chooser implementation

resources/qml/RowDelegateChooser.qml

@@ -5,7 +5,7 @@ import com.github.nheko 1.0
 import "./delegates"
 
 DelegateChooser {
-	role: "type"
+	//role: "type" //< not supported in our custom implementation, have to use roleValue
 	width: chat.width
 	roleValue: model.type
 
@@ -46,7 +46,6 @@ DelegateChooser {
 		TimelineRow { view: chat; Redacted { id: kid } }
 	}
 	DelegateChoice {
-		//roleValue: MtxEvent.Redacted
 		TimelineRow { view: chat; Placeholder { id: kid } }
 	}
 }

resources/qml/TimelineView.qml

@@ -90,7 +90,15 @@ Rectangle {
 		onMovementEnded: updatePosition()
 
 		spacing: 4
-		delegate: RowDelegateChooser {}
+		delegate: RowDelegateChooser {
+			function isFullyVisible() {
+				return height > 1 && (y - chat.contentY - 1) + height < chat.height
+			}
+			function getIndex() {
+				return index;
+			}
+
+		}
 
 		section {
 			property: "section"

src/timeline2/DelegateChooser.cpp

@@ -5,11 +5,6 @@
 // uses private API, which moved between versions
 #include <QQmlEngine>
 #include <QtGlobal>
-#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
-#include <QtQmlModels/private/qqmladaptormodel_p.h>
-#else
-#include <QtQml/private/qqmladaptormodel_p.h>
-#endif
 
 QQmlComponent *
 DelegateChoice::delegate() const
@@ -70,44 +65,11 @@ DelegateChooser::choices()
                                                 &DelegateChooser::clearChoices);
 }
 
-QString
-DelegateChooser::role() const
-{
-        return role_;
-}
-
-void
-DelegateChooser::setRole(const QString &role)
-{
-        if (role != role_) {
-                role_ = role;
-                emit roleChanged();
-        }
-}
-
-QQmlComponent *
-DelegateChooser::delegate(QQmlAdaptorModel *adaptorModel, int row, int column) const
-{
-        auto value = adaptorModel->value(adaptorModel->indexAt(row, column), role_);
-
-        for (const auto choice : choices_) {
-                auto choiceValue = choice->roleValue();
-                if (!value.isValid() || choiceValue == value) {
-                        nhlog::ui()->debug("Returned delegate for {}", role_.toStdString());
-                        return choice->delegate();
-                }
-        }
-
-        nhlog::ui()->debug("Returned null delegate");
-        return nullptr;
-}
-
 void
 DelegateChooser::appendChoice(QQmlListProperty<DelegateChoice> *p, DelegateChoice *c)
 {
         DelegateChooser *dc = static_cast<DelegateChooser *>(p->object);
         dc->choices_.append(c);
-        // dc->recalcChild();
 }
 
 int
@@ -132,8 +94,6 @@ DelegateChooser::recalcChild()
         for (const auto choice : choices_) {
                 auto choiceValue = choice->roleValue();
                 if (!roleValue_.isValid() || !choiceValue.isValid() || choiceValue == roleValue_) {
-                        nhlog::ui()->debug("Returned delegate for {}", role_.toStdString());
-
                         if (child) {
                                 // delete child;
                                 child = nullptr;

src/timeline2/DelegateChooser.h

@@ -44,19 +44,13 @@ class DelegateChooser : public QQuickItem
 
 public:
         Q_PROPERTY(QQmlListProperty<DelegateChoice> choices READ choices CONSTANT)
-        Q_PROPERTY(QString role READ role WRITE setRole NOTIFY roleChanged)
         Q_PROPERTY(QVariant roleValue READ roleValue WRITE setRoleValue NOTIFY roleValueChanged)
 
         QQmlListProperty<DelegateChoice> choices();
 
-        QString role() const;
-        void setRole(const QString &role);
-
         QVariant roleValue() const;
         void setRoleValue(const QVariant &value);
 
-        QQmlComponent *delegate(QQmlAdaptorModel *adaptorModel, int row, int column = 0) const;
-
         void recalcChild();
         void componentComplete() override;
 
@@ -65,7 +59,6 @@ signals:
         void roleValueChanged();
 
 private:
-        QString role_;
         QVariant roleValue_;
         QList<DelegateChoice *> choices_;
         QQuickItem *child;