ProjectNodes: Handle supported actions one-by-one

Getting the full list for a node can get quite expensive e.g. in
cases of recursive calls of QMakeProjectManager::findPriFile.

However, the FlatModel needs to decide quickly on whether an item
is editable to potentially allow renaming.

So split up QList<Actions> supportedActions() into individual
bool supportsAction(action) calls and make sure Rename is not
on the critical path.

Task-number: QTCREATORBUG-17953
Change-Id: I31841847f8aa7d7b94c63d76ce71efb1c930fa69
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/plugins/resourceeditor/resourceeditorplugin.cpp b/src/plugins/resourceeditor/resourceeditorplugin.cpp
index 474092d350..1ae83161ca 100644
--- a/src/plugins/resourceeditor/resourceeditorplugin.cpp
+++ b/src/plugins/resourceeditor/resourceeditorplugin.cpp
@@ -338,8 +338,8 @@ void ResourceEditorPlugin::updateContextActions()
 
     if (isResourceNode) {
         FolderNode *parent = node ? node->parentFolderNode() : 0;
-        enableRename = parent && parent->supportedActions(node).contains(Rename);
-        enableRemove = parent && parent->supportedActions(node).contains(RemoveFile);
+        enableRename = parent && parent->supportsAction(Rename, node);
+        enableRemove = parent && parent->supportsAction(RemoveFile, node);
     }
 
     m_renameResourceFile->setEnabled(isResourceNode && enableRename);