Fixed QTCREATORBUG-1397.

When adding a new file, refreshing semantic errors in the open editor should
have worked. It now also works for removing existing files.

Done-with: Christian Kamm

src/plugins/qmlprojectmanager/fileformat/filefilteritems.cpp

@@ -169,8 +169,15 @@ void FileFilterBaseItem::updateFileList()
         newFiles += filesInSubTree(QDir(m_defaultDir), QDir(projectDir), &dirsToBeWatched);
 
     if (newFiles != m_files) {
+        QSet<QString> addedFiles = newFiles;
+        QSet<QString> removedFiles = m_files;
+        QSet<QString> unchanged = newFiles;
+        unchanged.intersect(m_files);
+        addedFiles.subtract(unchanged);
+        removedFiles.subtract(unchanged);
+
         m_files = newFiles;
-        emit filesChanged();
+        emit filesChanged(addedFiles, removedFiles);
     }
 
     // update watched directories

src/plugins/qmlprojectmanager/fileformat/filefilteritems.h

@@ -45,7 +45,7 @@ signals:
     void directoryChanged();
     void recursiveChanged();
     void pathsChanged();
-    void filesChanged();
+    void filesChanged(const QSet<QString> &added, const QSet<QString> &removed);
     void filterChanged();
 
 private slots:

src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.cpp

@@ -72,7 +72,8 @@ void QmlProjectItem::setSourceDirectory(const QString &directoryPath)
         FileFilterBaseItem *fileFilter = qobject_cast<FileFilterBaseItem*>(contentElement);
         if (fileFilter) {
             fileFilter->setDefaultDirectory(directoryPath);
-            connect(fileFilter, SIGNAL(filesChanged()), this, SIGNAL(qmlFilesChanged()));
+            connect(fileFilter, SIGNAL(filesChanged(QSet<QString>, QSet<QString>)),
+                    this, SIGNAL(qmlFilesChanged(QSet<QString>, QSet<QString>)));
         }
     }
 

src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.h

@@ -44,7 +44,7 @@ public:
     bool matchesFile(const QString &filePath) const;
 
 signals:
-    void qmlFilesChanged();
+    void qmlFilesChanged(const QSet<QString> &, const QSet<QString> &);
     void sourceDirectoryChanged();
     void importPathsChanged();