ProjectExplorer: Fix node selection in wizard dialogs

When File>New File or Project is selected, then no node should be selected
on the summary page. If the wizard is triggered via the context menu of the
project tree, then select that node as context instead.

Task-number: QTCREATORBUG-18093
Change-Id: Ic9a14ad72c23c9a40ba2866772e0dcd5b28f9a74
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/plugins/projectexplorer/projectwizardpage.cpp

@@ -456,6 +456,11 @@ void ProjectWizardPage::initializeProjectTree(Node *context, const QStringList &
     }
     root->prependChild(createNoneNode(&selector));
 
+    // Set combobox to context node:
+    auto predicate = [context](TreeItem *ti) { return static_cast<AddNewTree*>(ti)->node() == context; };
+    TreeItem *contextItem = root->findAnyChild(predicate);
+    m_ui->projectComboBox->setCurrentIndex(m_model.indexForItem(contextItem));
+
     setAdditionalInfo(selector.deployingProjects());
     setBestNode(selector.bestChoice());
     setAddingSubProject(action == AddSubProject);