CppTools: CMM::completionAssistProvider takes a mimeType

No need to pass more than needed.

Change-Id: I047cc44f17342999e0809d022df35ba9a4a8dfb8
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

src/plugins/cpptools/cppmodelmanager.cpp

@@ -885,10 +885,13 @@ ModelManagerSupport *CppModelManager::modelManagerSupportForMimeType(const QStri
     return m_idTocodeModelSupporter.value(id, m_modelManagerSupportFallback.data());
 }
 
-CppCompletionAssistProvider *CppModelManager::completionAssistProvider(Core::IEditor *editor) const
+CppCompletionAssistProvider *CppModelManager::completionAssistProvider(const QString &mimeType) const
 {
-    ModelManagerSupport *cms = modelManagerSupportForMimeType(editor->document()->mimeType());
+    if (mimeType.isEmpty())
+        return 0;
 
+    ModelManagerSupport *cms = modelManagerSupportForMimeType(mimeType);
+    QTC_ASSERT(cms, return 0);
     return cms->completionAssistProvider();
 }
 

src/plugins/cpptools/cppmodelmanager.h

@@ -114,7 +114,7 @@ public:
 
     virtual void addModelManagerSupport(ModelManagerSupport *modelManagerSupport);
     virtual ModelManagerSupport *modelManagerSupportForMimeType(const QString &mimeType) const;
-    virtual CppCompletionAssistProvider *completionAssistProvider(Core::IEditor *editor) const;
+    virtual CppCompletionAssistProvider *completionAssistProvider(const QString &mimeType) const;
     virtual CppHighlightingSupport *highlightingSupport(Core::IEditor *editor) const;
 
     virtual void setIndexingSupport(CppIndexingSupport *indexingSupport);

src/plugins/cpptools/cppmodelmanagerinterface.h

@@ -259,7 +259,7 @@ public:
 
     virtual void addModelManagerSupport(ModelManagerSupport *modelManagerSupport) = 0;
     virtual ModelManagerSupport *modelManagerSupportForMimeType(const QString &mimeType) const = 0;
-    virtual CppCompletionAssistProvider *completionAssistProvider(Core::IEditor *editor) const = 0;
+    virtual CppCompletionAssistProvider *completionAssistProvider(const QString &mimeType) const = 0;
     virtual CppHighlightingSupport *highlightingSupport(Core::IEditor *editor) const = 0;
 
     virtual void setIndexingSupport(CppTools::CppIndexingSupport *indexingSupport) = 0;

src/plugins/cpptools/cpptoolseditorsupport.cpp

@@ -122,7 +122,8 @@ CppEditorSupport::CppEditorSupport(CppModelManager *modelManager, BaseTextEditor
     , m_lastHighlightRevision(0)
     , m_lastHighlightOnCompleteSemanticInfo(true)
     , m_highlightingSupport(modelManager->highlightingSupport(textEditor))
-    , m_completionAssistProvider(m_modelManager->completionAssistProvider(textEditor))
+    , m_completionAssistProvider(
+        modelManager->completionAssistProvider(textEditor->document()->mimeType()))
 {
     connect(m_modelManager, SIGNAL(documentUpdated(CPlusPlus::Document::Ptr)),
             this, SLOT(onDocumentUpdated(CPlusPlus::Document::Ptr)));
@@ -602,7 +603,8 @@ void CppEditorSupport::onMimeTypeChanged()
         connect(this, SIGNAL(semanticInfoUpdated(CppTools::SemanticInfo)),
                 this, SLOT(startHighlighting()));
 
-    m_completionAssistProvider = m_modelManager->completionAssistProvider(m_textEditor);
+    m_completionAssistProvider
+        = m_modelManager->completionAssistProvider(m_textEditor->document()->mimeType());
 
     updateDocumentNow();
 }