CppTools: Do not clear project state on session unload

Affected functionality was, among others:
 * Getting the correct project part when opening a file
 * Fallback project part (merged defines/includes) not up to date
 * Fallback for "Switch Header/Source" not up to date

In the early days sessions switching was probably implemented by "close
all projects of session X, open all projects of session Y". That's not
the case anymore today.

Change-Id: I4c6a80e2eb219615d3ea6fcf07be7c05072c8832
Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

1 files changed, 1 insertions, 13 deletions

diff --git a/src/plugins/cpptools/cppmodelmanager.cpp b/src/plugins/cpptools/cppmodelmanager.cpp
index 7a94dbb580..3dad9eea30 100644
--- a/src/plugins/cpptools/cppmodelmanager.cpp
+++ b/src/plugins/cpptools/cppmodelmanager.cpp
@@ -326,8 +326,6 @@ CppModelManager::CppModelManager(QObject *parent)
             this, SLOT(onAboutToRemoveProject(ProjectExplorer::Project*)));
     connect(sessionManager, SIGNAL(aboutToLoadSession(QString)),
             this, SLOT(onAboutToLoadSession()));
-    connect(sessionManager, SIGNAL(aboutToUnloadSession(QString)),
-            this, SLOT(onAboutToUnloadSession()));
 
     connect(Core::EditorManager::instance(), &Core::EditorManager::currentEditorChanged,
             this, &CppModelManager::onCurrentEditorChanged);
@@ -1061,17 +1059,6 @@ void CppModelManager::onAboutToLoadSession()
     GC();
 }
 
-void CppModelManager::onAboutToUnloadSession()
-{
-    Core::ProgressManager::cancelTasks(CppTools::Constants::TASK_INDEX);
-    do {
-        QMutexLocker locker(&d->m_projectMutex);
-        d->m_projectToProjectsInfo.clear();
-        recalculateProjectPartMappings();
-        d->m_dirty = true;
-    } while (0);
-}
-
 void CppModelManager::renameIncludes(const QString &oldFileName, const QString &newFileName)
 {
     if (oldFileName.isEmpty() || newFileName.isEmpty())
@@ -1103,6 +1090,7 @@ void CppModelManager::renameIncludes(const QString &oldFileName, const QString &
 
 void CppModelManager::onCoreAboutToClose()
 {
+    Core::ProgressManager::cancelTasks(CppTools::Constants::TASK_INDEX);
     d->m_enableGC = false;
 }