Made CrumblePath API a bit more consistent/generic

Was a bit confusing to pass QVariant data in and get an int back.

Change-Id: I613d2eb88ade45baee85a4f84d7db6d3ce7fb923
Reviewed-on: http://codereview.qt.nokia.com/205
Reviewed-by: Christiaan Janssen <christiaan.janssen@nokia.com>

src/plugins/qmljsinspector/qmljscontextcrumblepath.cpp

@@ -52,10 +52,10 @@ void ContextCrumblePath::updateContextPath(const QStringList &path, const QList<
 
     m_isEmpty = path.isEmpty();
     if (m_isEmpty) {
-        pushElement(tr("[no context]"),QVariant(-1));
+        pushElement(tr("[no context]"), -1);
     } else {
         for (int i = 0; i < path.count(); i++)
-            pushElement(path[i], QVariant(debugIds[i]));
+            pushElement(path[i], debugIds[i]);
     }
 }
 
@@ -63,7 +63,7 @@ void ContextCrumblePath::addChildren(const QStringList &childrenNames, const QLi
 {
     Q_ASSERT(childrenNames.count() == childrenDebugIds.count());
     for (int i = 0; i < childrenNames.count(); i++)
-        addChild(childrenNames[i], QVariant(childrenDebugIds[i]));
+        addChild(childrenNames[i], childrenDebugIds[i]);
 }
 
 void ContextCrumblePath::clear()

src/plugins/qmljsinspector/qmljsinspector.cpp

@@ -726,7 +726,7 @@ void InspectorUi::setupDockWidgets()
     m_crumblePath = new ContextCrumblePath;
     m_crumblePath->setObjectName("QmlContextPath");
     m_crumblePath->setWindowTitle(tr("Context Path"));
-    connect(m_crumblePath, SIGNAL(elementClicked(int)), SLOT(crumblePathElementClicked(int)));
+    connect(m_crumblePath, SIGNAL(elementClicked(QVariant)), SLOT(crumblePathElementClicked(QVariant)));
 
     m_propertyInspector = new QmlJSPropertyInspector;
 
@@ -759,9 +759,11 @@ void InspectorUi::setupDockWidgets()
     dock->setTitleBarWidget(new QWidget(dock));
 }
 
-void InspectorUi::crumblePathElementClicked(int debugId)
+void InspectorUi::crumblePathElementClicked(const QVariant &data)
 {
-    if (debugId == -1)
+    bool ok;
+    const int debugId = data.toInt(&ok);
+    if (!ok || debugId == -1)
         return;
 
     QList<int> debugIds;

src/plugins/qmljsinspector/qmljsinspector.h

@@ -129,7 +129,7 @@ private slots:
     QmlJSLiveTextPreview *createPreviewForEditor(Core::IEditor *newEditor);
 
     void disableLivePreview();
-    void crumblePathElementClicked(int);
+    void crumblePathElementClicked(const QVariant &data);
 
     void currentDebugProjectRemoved();
     void updatePendingPreviewDocuments(QmlJS::Document::Ptr doc);