3 files changed, 98 insertions, 2 deletions

diff --git a/src/plugins/cpptools/cppfindreferences.cpp b/src/plugins/cpptools/cppfindreferences.cpp
index de598e3d61..5426664483 100644
--- a/src/plugins/cpptools/cppfindreferences.cpp
+++ b/src/plugins/cpptools/cppfindreferences.cpp
@@ -33,6 +33,9 @@
 #include <coreplugin/icore.h>
 #include <coreplugin/progressmanager/futureprogress.h>
 #include <coreplugin/progressmanager/progressmanager.h>
+#include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/projectnodes.h>
+#include <projectexplorer/session.h>
 #include <texteditor/basefilefind.h>
 
 #include <utils/algorithm.h>
@@ -42,6 +45,7 @@
 
 #include <cplusplus/Overview.h>
 #include <QtConcurrentMap>
+#include <QCheckBox>
 #include <QDir>
 
 #include <functional>
@@ -50,6 +54,7 @@ using namespace Core;
 using namespace CppTools::Internal;
 using namespace CppTools;
 using namespace CPlusPlus;
+using namespace ProjectExplorer;
 
 static QByteArray getSource(const Utils::FileName &fileName,
                             const WorkingCopy &workingCopy)
@@ -336,6 +341,12 @@ void CppFindReferences::findUsages(Symbol *symbol,
     CppFindReferencesParameters parameters;
     parameters.symbolId = fullIdForSymbol(symbol);
     parameters.symbolFileName = QByteArray(symbol->fileName());
+
+    if (symbol->isClass() || symbol->isForwardClassDeclaration()) {
+        Overview overview;
+        parameters.prettySymbolName = overview.prettyName(context.path(symbol).last());
+    }
+
     search->setUserData(qVariantFromValue(parameters));
     findAll_helper(search, symbol, context);
 }
@@ -382,12 +393,48 @@ void CppFindReferences::onReplaceButtonClicked(const QString &text,
         m_modelManager->updateSourceFiles(fileNames.toSet());
         SearchResultWindow::instance()->hide();
     }
+
+    auto search = qobject_cast<SearchResult *>(sender());
+    QTC_ASSERT(search, return);
+
+    CppFindReferencesParameters parameters = search->userData().value<CppFindReferencesParameters>();
+    if (parameters.filesToRename.isEmpty())
+        return;
+
+    auto renameFilesCheckBox = qobject_cast<QCheckBox *>(search->additionalReplaceWidget());
+    if (!renameFilesCheckBox || !renameFilesCheckBox->isChecked())
+        return;
+
+    const QStringList newPaths =
+            Utils::transform<QList>(parameters.filesToRename,
+                                    [&parameters, text](const Node *node) -> QString {
+        const QFileInfo fi = node->filePath().toFileInfo();
+        const QString fileName = fi.fileName();
+        QString newName = fileName;
+        newName.replace(parameters.prettySymbolName, text, Qt::CaseInsensitive);
+
+        if (newName != fileName) {
+            newName = Utils::matchCaseReplacement(fileName, newName);
+
+            return fi.absolutePath() + "/" + newName;
+        }
+
+        return QString();
+    });
+
+    for (int i = 0; i < parameters.filesToRename.size(); ++i) {
+        if (!newPaths.at(i).isEmpty()) {
+            Node *node = parameters.filesToRename.at(i);
+            ProjectExplorerPlugin::renameFile(node, newPaths.at(i));
+        }
+    }
 }
 
 void CppFindReferences::searchAgain()
 {
     SearchResult *search = qobject_cast<SearchResult *>(sender());
     CppFindReferencesParameters parameters = search->userData().value<CppFindReferencesParameters>();
+    parameters.filesToRename.clear();
     Snapshot snapshot = CppModelManager::instance()->snapshot();
     search->restart();
     LookupContext context;
@@ -467,6 +514,8 @@ Symbol *CppFindReferences::findSymbol(const CppFindReferencesParameters &paramet
 static void displayResults(SearchResult *search, QFutureWatcher<Usage> *watcher,
                            int first, int last)
 {
+    CppFindReferencesParameters parameters = search->userData().value<CppFindReferencesParameters>();
+
     for (int index = first; index != last; ++index) {
         Usage result = watcher->future().resultAt(index);
         search->addResult(result.path.toString(),
@@ -474,7 +523,45 @@ static void displayResults(SearchResult *search, QFutureWatcher<Usage> *watcher,
                           result.lineText,
                           result.col,
                           result.len);
+
+        if (parameters.prettySymbolName.isEmpty())
+            continue;
+
+        if (Utils::contains(parameters.filesToRename, Utils::equal(&Node::filePath, result.path)))
+            continue;
+
+        Node *node = SessionManager::nodeForFile(result.path);
+        if (!node) // Not part of any project
+            continue;
+
+        const QFileInfo fi = node->filePath().toFileInfo();
+        if (fi.baseName().compare(parameters.prettySymbolName, Qt::CaseInsensitive) == 0)
+            parameters.filesToRename.append(node);
     }
+
+    search->setUserData(qVariantFromValue(parameters));
+}
+
+static void searchFinished(SearchResult *search, QFutureWatcher<Usage> *watcher)
+{
+    search->finishSearch(watcher->isCanceled());
+
+    CppFindReferencesParameters parameters = search->userData().value<CppFindReferencesParameters>();
+    if (!parameters.filesToRename.isEmpty()) {
+        const QStringList filesToRename
+                = Utils::transform<QList>(parameters.filesToRename, [](const Node *node) {
+            return node->filePath().toUserOutput();
+        });
+
+        auto renameCheckBox = qobject_cast<QCheckBox *>(search->additionalReplaceWidget());
+        if (renameCheckBox) {
+            renameCheckBox->setText(CppFindReferences::tr("Re&name %1 files.").arg(filesToRename.size()));
+            renameCheckBox->setToolTip(CppFindReferences::tr("Files:\n%1").arg(filesToRename.join('\n')));
+            renameCheckBox->setVisible(true);
+        }
+    }
+
+    watcher->deleteLater();
 }
 
 void CppFindReferences::openEditor(const SearchResultItem &item)
@@ -651,7 +738,9 @@ void CppFindReferences::createWatcher(const QFuture<Usage> &future, SearchResult
 {
     QFutureWatcher<Usage> *watcher = new QFutureWatcher<Usage>();
     // auto-delete:
-    connect(watcher, &QFutureWatcherBase::finished, watcher, &QObject::deleteLater);
+    connect(watcher, &QFutureWatcherBase::finished, watcher, [search, watcher]() {
+                searchFinished(search, watcher);
+            });
 
     connect(watcher, &QFutureWatcherBase::resultsReadyAt, search,
             [search, watcher](int first, int last) {
diff --git a/src/plugins/cpptools/cppfindreferences.h b/src/plugins/cpptools/cppfindreferences.h
index 5a2dfc4cc5..422eedb0c9 100644
--- a/src/plugins/cpptools/cppfindreferences.h
+++ b/src/plugins/cpptools/cppfindreferences.h
@@ -40,6 +40,10 @@ class SearchResultItem;
 class SearchResult;
 } // namespace Core
 
+namespace ProjectExplorer {
+class Node;
+}
+
 namespace CppTools {
 class CppModelManager;
 
@@ -50,6 +54,8 @@ class CppFindReferencesParameters
 public:
     QList<QByteArray> symbolId;
     QByteArray symbolFileName;
+    QString prettySymbolName;
+    QVector<ProjectExplorer::Node *> filesToRename;
 };
 
 class CppFindReferences: public QObject
diff --git a/src/plugins/cpptools/cppmodelmanager.h b/src/plugins/cpptools/cppmodelmanager.h
index ce2a042bc9..97a93fce60 100644
--- a/src/plugins/cpptools/cppmodelmanager.h
+++ b/src/plugins/cpptools/cppmodelmanager.h
@@ -180,6 +180,8 @@ public:
     static void setRefactoringEngine(RefactoringEngineInterface *refactoringEngine);
     static RefactoringEngineInterface *refactoringEngine();
 
+    void renameIncludes(const QString &oldFileName, const QString &newFileName);
+
 signals:
     /// Project data might be locked while this is emitted.
     void aboutToRemoveFiles(const QStringList &files);
@@ -205,7 +207,6 @@ private:
     // This should be executed in the GUI thread.
     friend class Tests::ModelManagerTestHelper;
     void onAboutToLoadSession();
-    void renameIncludes(const QString &oldFileName, const QString &newFileName);
     void onProjectAdded(ProjectExplorer::Project *project);
     void onAboutToRemoveProject(ProjectExplorer::Project *project);
     void onActiveProjectChanged(ProjectExplorer::Project *project);