QmlInspector: Implemented context menu for SceneGraph

Change-Id: I467bdba42af0ff4b680c31a3545e059a56016a57

4 files changed, 116 insertions, 16 deletions

diff --git a/src/plugins/qmltooling/qmldbg_inspector/sgselectiontool.cpp b/src/plugins/qmltooling/qmldbg_inspector/sgselectiontool.cpp
index 2d911a88f7..7260933b5d 100644
--- a/src/plugins/qmltooling/qmldbg_inspector/sgselectiontool.cpp
+++ b/src/plugins/qmltooling/qmldbg_inspector/sgselectiontool.cpp
@@ -43,6 +43,7 @@
 
 #include "sgviewinspector.h"
 
+#include <QtGui/QMenu>
 #include <QtGui/QMouseEvent>
 #include <QtDeclarative/QSGView>
 #include <QtDeclarative/QSGItem>
@@ -58,6 +59,13 @@ public:
         setZ(1); // hover highlight on top of selection indicator
     }
 
+    void setItem(QSGItem *item)
+    {
+        setSize(QSizeF(item->width(), item->height()));
+        setPos(parentItem()->mapFromItem(item, QPointF()));
+        setVisible(true);
+    }
+
     void paint(QPainter *painter)
     {
         painter->setPen(QPen(QColor(0, 22, 159)));
@@ -81,25 +89,70 @@ void SGSelectionTool::leaveEvent(QEvent *)
 
 void SGSelectionTool::mousePressEvent(QMouseEvent *event)
 {
-    SGViewInspector *sgInspector = static_cast<SGViewInspector*>(inspector());
-    QSGItem *item = sgInspector->topVisibleItemAt(event->pos());
-    if (item)
-        sgInspector->setSelectedItems(QList<QSGItem*>() << item);
+    if (event->button() == Qt::LeftButton) {
+        if (QSGItem *item = inspector()->topVisibleItemAt(event->pos()))
+            inspector()->setSelectedItems(QList<QSGItem*>() << item);
+    } else if (event->button() == Qt::RightButton) {
+        QList<QSGItem*> items = inspector()->itemsAt(event->pos());
+        createContextMenu(items, event->globalPos());
+    }
 }
 
 void SGSelectionTool::hoverMoveEvent(QMouseEvent *event)
 {
-    SGViewInspector *sgInspector = static_cast<SGViewInspector*>(inspector());
-    QSGItem *item = sgInspector->topVisibleItemAt(event->pos());
-    if (!item) {
+    QSGItem *item = inspector()->topVisibleItemAt(event->pos());
+    if (!item)
         m_hoverHighlight->setVisible(false);
-        return;
+    else
+        m_hoverHighlight->setItem(item);
+}
+
+void SGSelectionTool::createContextMenu(const QList<QSGItem *> &items, QPoint pos)
+{
+    QMenu contextMenu;
+    connect(&contextMenu, SIGNAL(hovered(QAction*)),
+            this, SLOT(contextMenuElementHovered(QAction*)));
+
+    const QList<QSGItem*> selectedItems = inspector()->selectedItems();
+    int shortcutKey = Qt::Key_1;
+
+    foreach (QSGItem *item, items) {
+        const QString title = inspector()->titleForItem(item);
+        QAction *elementAction = contextMenu.addAction(title);
+        elementAction->setData(QVariant::fromValue(item));
+
+        connect(elementAction, SIGNAL(triggered()), this, SLOT(contextMenuElementSelected()));
+
+        if (selectedItems.contains(item)) {
+            QFont font = elementAction->font();
+            font.setBold(true);
+            elementAction->setFont(font);
+        }
+
+        if (shortcutKey <= Qt::Key_9) {
+            elementAction->setShortcut(QKeySequence(shortcutKey));
+            shortcutKey++;
+        }
     }
 
-    QSGItem *root = sgInspector->view()->rootItem();
-    m_hoverHighlight->setSize(QSizeF(item->width(), item->height()));
-    m_hoverHighlight->setPos(root->mapFromItem(item->parentItem(), item->pos()));
-    m_hoverHighlight->setVisible(true);
+    contextMenu.exec(pos);
+}
+
+void SGSelectionTool::contextMenuElementHovered(QAction *action)
+{
+    if (QSGItem *item = action->data().value<QSGItem*>())
+        m_hoverHighlight->setItem(item);
+}
+
+void SGSelectionTool::contextMenuElementSelected()
+{
+    if (QSGItem *item = static_cast<QAction*>(sender())->data().value<QSGItem*>())
+        inspector()->setSelectedItems(QList<QSGItem*>() << item);
+}
+
+SGViewInspector *SGSelectionTool::inspector() const
+{
+    return static_cast<SGViewInspector*>(AbstractTool::inspector());
 }
 
 } // namespace QmlJSDebugger
diff --git a/src/plugins/qmltooling/qmldbg_inspector/sgselectiontool.h b/src/plugins/qmltooling/qmldbg_inspector/sgselectiontool.h
index e76bd2062c..9f2171f572 100644
--- a/src/plugins/qmltooling/qmldbg_inspector/sgselectiontool.h
+++ b/src/plugins/qmltooling/qmldbg_inspector/sgselectiontool.h
@@ -45,6 +45,10 @@
 #include "abstracttool.h"
 
 #include <QtCore/QList>
+#include <QtCore/QPoint>
+
+QT_FORWARD_DECLARE_CLASS(QAction)
+QT_FORWARD_DECLARE_CLASS(QSGItem)
 
 namespace QmlJSDebugger {
 
@@ -70,7 +74,15 @@ public:
     void keyPressEvent(QKeyEvent *) {}
     void keyReleaseEvent(QKeyEvent *) {}
 
+private slots:
+    void contextMenuElementHovered(QAction *action);
+    void contextMenuElementSelected();
+
 private:
+    void createContextMenu(const QList<QSGItem*> &items, QPoint pos);
+
+    SGViewInspector *inspector() const;
+
     SGHoverHighlight *m_hoverHighlight;
 };
 
diff --git a/src/plugins/qmltooling/qmldbg_inspector/sgviewinspector.cpp b/src/plugins/qmltooling/qmldbg_inspector/sgviewinspector.cpp
index fd9b29bcd5..b1d19182d7 100644
--- a/src/plugins/qmltooling/qmldbg_inspector/sgviewinspector.cpp
+++ b/src/plugins/qmltooling/qmldbg_inspector/sgviewinspector.cpp
@@ -58,6 +58,32 @@
 namespace QmlJSDebugger {
 
 /*
+ * Collects all the items at the given position, from top to bottom.
+ */
+static void collectItemsAt(QSGItem *item, const QPointF &pos, QSGItem *overlay,
+                           QList<QSGItem *> &resultList)
+{
+    if (item == overlay)
+        return;
+
+    if (item->flags() & QSGItem::ItemClipsChildrenToShape) {
+        if (!QRectF(0, 0, item->width(), item->height()).contains(pos))
+            return;
+    }
+
+    QList<QSGItem *> children = QSGItemPrivate::get(item)->paintOrderChildItems();
+    for (int i = children.count() - 1; i >= 0; --i) {
+        QSGItem *child = children.at(i);
+        collectItemsAt(child, item->mapToItem(child, pos), overlay, resultList);
+    }
+
+    if (!QRectF(0, 0, item->width(), item->height()).contains(pos))
+        return;
+
+    resultList.append(item);
+}
+
+/*
  * Returns the first visible item at the given position, or 0 when no such
  * child exists.
  */
@@ -185,12 +211,20 @@ QWidget *SGViewInspector::viewWidget() const
     return m_view;
 }
 
-QSGItem *SGViewInspector::topVisibleItemAt(const QPointF &pos)
+QSGItem *SGViewInspector::topVisibleItemAt(const QPointF &pos) const
 {
     QSGItem *root = m_view->rootItem();
     return itemAt(root, root->mapFromScene(pos), m_overlay);
 }
 
+QList<QSGItem *> SGViewInspector::itemsAt(const QPointF &pos) const
+{
+    QSGItem *root = m_view->rootItem();
+    QList<QSGItem *> resultList;
+    collectItemsAt(root, root->mapFromScene(pos), m_overlay, resultList);
+    return resultList;
+}
+
 QList<QSGItem*> SGViewInspector::selectedItems() const
 {
     QList<QSGItem *> selection;
diff --git a/src/plugins/qmltooling/qmldbg_inspector/sgviewinspector.h b/src/plugins/qmltooling/qmldbg_inspector/sgviewinspector.h
index 8cde72d793..d1f64994ea 100644
--- a/src/plugins/qmltooling/qmldbg_inspector/sgviewinspector.h
+++ b/src/plugins/qmltooling/qmldbg_inspector/sgviewinspector.h
@@ -74,11 +74,14 @@ public:
     QSGView *view() const { return m_view; }
     QSGItem *overlay() const { return m_overlay; }
 
-    QSGItem *topVisibleItemAt(const QPointF &pos);
+    QSGItem *topVisibleItemAt(const QPointF &pos) const;
+    QList<QSGItem *> itemsAt(const QPointF &pos) const;
 
     QList<QSGItem *> selectedItems() const;
     void setSelectedItems(const QList<QSGItem*> &items);
 
+    QString titleForItem(QSGItem *item) const;
+
 protected:
     bool eventFilter(QObject *obj, QEvent *event);
 
@@ -91,8 +94,6 @@ private slots:
 private:
     bool syncSelectedItems(const QList<QSGItem*> &items);
 
-    QString titleForItem(QSGItem *item) const;
-
     QSGView *m_view;
     QSGItem *m_overlay;