VCS: Replace describe slots with lambdas

Change-Id: I05ca25aad8be43fdfa15d3fb5eaaa9bf753ee79f
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

19 files changed, 52 insertions, 57 deletions

diff --git a/src/plugins/bazaar/bazaarclient.h b/src/plugins/bazaar/bazaarclient.h
index 96f6a97a80..aa18bcc8a3 100644
--- a/src/plugins/bazaar/bazaarclient.h
+++ b/src/plugins/bazaar/bazaarclient.h
@@ -55,8 +55,6 @@ public:
     bool isVcsDirectory(const Utils::FileName &fileName) const;
     QString findTopLevelForFile(const QFileInfo &file) const;
     bool managesFile(const QString &workingDirectory, const QString &fileName) const;
-
-public slots:
     void view(const QString &source, const QString &id,
               const QStringList &extraOptions = QStringList());
 
diff --git a/src/plugins/bazaar/bazaarplugin.cpp b/src/plugins/bazaar/bazaarplugin.cpp
index f8516d9778..49b0d9f4af 100644
--- a/src/plugins/bazaar/bazaarplugin.cpp
+++ b/src/plugins/bazaar/bazaarplugin.cpp
@@ -160,11 +160,13 @@ bool BazaarPlugin::initialize(const QStringList &arguments, QString *errorMessag
 
     addAutoReleasedObject(new OptionsPage(vcsCtrl));
 
-    static const char *describeSlot = SLOT(view(QString,QString));
+    const auto describeFunc = [this](const QString &source, const QString &id) {
+        m_client->view(source, id);
+    };
     const int editorCount = sizeof(editorParameters) / sizeof(VcsBaseEditorParameters);
     const auto widgetCreator = []() { return new BazaarEditorWidget; };
     for (int i = 0; i < editorCount; i++)
-        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, m_client, describeSlot));
+        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, describeFunc));
 
     addAutoReleasedObject(new VcsSubmitEditorFactory(&submitEditorParameters,
         []() { return new CommitEditor(&submitEditorParameters); }));
diff --git a/src/plugins/clearcase/clearcaseplugin.cpp b/src/plugins/clearcase/clearcaseplugin.cpp
index ee1f1779bb..892d8c79c6 100644
--- a/src/plugins/clearcase/clearcaseplugin.cpp
+++ b/src/plugins/clearcase/clearcaseplugin.cpp
@@ -432,11 +432,13 @@ bool ClearCasePlugin::initialize(const QStringList & /*arguments */, QString *er
         []() { return new ClearCaseSubmitEditor(&submitParameters); }));
 
     // any editor responds to describe (when clicking a version)
-    static const char *describeSlot = SLOT(describe(QString,QString));
+    const auto describeFunc = [this](const QString &source, const QString &changeNr) {
+        describe(source, changeNr);
+    };
     const int editorCount = sizeof(editorParameters)/sizeof(VcsBaseEditorParameters);
     const auto widgetCreator = []() { return new ClearCaseEditorWidget; };
     for (int i = 0; i < editorCount; i++)
-        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, this, describeSlot));
+        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, describeFunc));
 
     const QString description = QLatin1String("ClearCase");
     const QString prefix = QLatin1String("cc");
diff --git a/src/plugins/clearcase/clearcaseplugin.h b/src/plugins/clearcase/clearcaseplugin.h
index a3c93c4c2c..dcd8bca1ec 100644
--- a/src/plugins/clearcase/clearcaseplugin.h
+++ b/src/plugins/clearcase/clearcaseplugin.h
@@ -168,6 +168,7 @@ public:
                      const QString &revision = QString(), int lineNumber = -1) const;
     bool newActivity();
     void updateStreamAndView();
+    void describe(const QString &source, const QString &changeNr);
 
 protected:
     void updateActions(VcsBase::VcsBasePlugin::ActionState) override;
@@ -194,9 +195,6 @@ private slots:
     void testVcsStatusDynamicNotManaged();
 #endif
 
-public slots:
-    void describe(const QString &source, const QString &changeNr);
-
 private:
     void annotateVersion(const QString &workingDirectory, const QString &file, const QString &revision, int lineNumber);
     void syncSlot();
diff --git a/src/plugins/cvs/cvsplugin.cpp b/src/plugins/cvs/cvsplugin.cpp
index 06c25a4270..c697b0427e 100644
--- a/src/plugins/cvs/cvsplugin.cpp
+++ b/src/plugins/cvs/cvsplugin.cpp
@@ -212,11 +212,15 @@ bool CvsPlugin::initialize(const QStringList &arguments, QString *errorMessage)
     addAutoReleasedObject(new VcsSubmitEditorFactory(&submitParameters,
         []() { return new CvsSubmitEditor(&submitParameters); }));
 
-    static const char *describeSlotC = SLOT(slotDescribe(QString,QString));
+    const auto describeFunc = [this](const QString &source, const QString &changeNr) {
+        QString errorMessage;
+        if (!describe(source, changeNr, &errorMessage))
+            VcsOutputWindow::appendError(errorMessage);
+    };
     const int editorCount = sizeof(editorParameters) / sizeof(editorParameters[0]);
     const auto widgetCreator = []() { return new CvsEditorWidget; };
     for (int i = 0; i < editorCount; i++)
-        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, this, describeSlotC));
+        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, describeFunc));
 
     const QString prefix = QLatin1String("cvs");
     m_commandLocator = new CommandLocator("CVS", prefix, prefix);
@@ -964,13 +968,6 @@ void CvsPlugin::updateRepository()
 
 }
 
-void CvsPlugin::slotDescribe(const QString &source, const QString &changeNr)
-{
-    QString errorMessage;
-    if (!describe(source, changeNr, &errorMessage))
-        VcsOutputWindow::appendError(errorMessage);
-}
-
 bool CvsPlugin::describe(const QString &file, const QString &changeNr, QString *errorMessage)
 {
 
diff --git a/src/plugins/cvs/cvsplugin.h b/src/plugins/cvs/cvsplugin.h
index 86567c4511..c3e2b1a456 100644
--- a/src/plugins/cvs/cvsplugin.h
+++ b/src/plugins/cvs/cvsplugin.h
@@ -90,9 +90,6 @@ public slots:
     void vcsAnnotate(const QString &workingDirectory, const QString &file,
                      const QString &revision, int lineNumber);
 
-private slots:
-    void slotDescribe(const QString &source, const QString &changeNr);
-
 #ifdef WITH_TESTS
     void testDiffFileResolving_data();
     void testDiffFileResolving();
diff --git a/src/plugins/git/gitclient.h b/src/plugins/git/gitclient.h
index 5261d5afb8..5f768ea87a 100644
--- a/src/plugins/git/gitclient.h
+++ b/src/plugins/git/gitclient.h
@@ -321,8 +321,6 @@ public:
 
     static QString msgNoChangedFiles();
     static QString msgNoCommits(bool includeRemote);
-
-public slots:
     void show(const QString &source, const QString &id, const QString &name = QString());
 
 private:
diff --git a/src/plugins/git/gitplugin.cpp b/src/plugins/git/gitplugin.cpp
index 9049828235..71476bb940 100644
--- a/src/plugins/git/gitplugin.cpp
+++ b/src/plugins/git/gitplugin.cpp
@@ -285,11 +285,13 @@ bool GitPlugin::initialize(const QStringList &arguments, QString *errorMessage)
     addAutoReleasedObject(new SettingsPage(versionControl()));
     addAutoReleasedObject(new GitGrep);
 
-    static const char *describeSlot = SLOT(show(QString,QString));
+    const auto describeFunc = [this](const QString &source, const QString &id) {
+        m_gitClient->show(source, id);
+    };
     const int editorCount = sizeof(editorParameters) / sizeof(editorParameters[0]);
     const auto widgetCreator = []() { return new GitEditorWidget; };
     for (int i = 0; i < editorCount; i++)
-        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, m_gitClient, describeSlot));
+        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, describeFunc));
 
     addAutoReleasedObject(new VcsSubmitEditorFactory(&submitParameters,
         []() { return new GitSubmitEditor(&submitParameters); }));
diff --git a/src/plugins/mercurial/mercurialclient.h b/src/plugins/mercurial/mercurialclient.h
index 2692b4bfd6..e3763439a3 100644
--- a/src/plugins/mercurial/mercurialclient.h
+++ b/src/plugins/mercurial/mercurialclient.h
@@ -73,7 +73,6 @@ public:
     bool isVcsDirectory(const Utils::FileName &fileName) const;
     QString findTopLevelForFile(const QFileInfo &file) const override;
 
-public slots:
     void view(const QString &source, const QString &id,
               const QStringList &extraOptions = QStringList()) override;
 
diff --git a/src/plugins/mercurial/mercurialplugin.cpp b/src/plugins/mercurial/mercurialplugin.cpp
index 29b2095af1..4acc63fa4c 100644
--- a/src/plugins/mercurial/mercurialplugin.cpp
+++ b/src/plugins/mercurial/mercurialplugin.cpp
@@ -129,11 +129,13 @@ bool MercurialPlugin::initialize(const QStringList & /* arguments */, QString *
     connect(m_client, SIGNAL(changed(QVariant)), versionControl(), SLOT(changed(QVariant)));
     connect(m_client, &MercurialClient::needUpdate, this, &MercurialPlugin::update);
 
-    static const char *describeSlot = SLOT(view(QString,QString));
+    const auto describeFunc = [this](const QString &source, const QString &id) {
+        m_client->view(source, id);
+    };
     const int editorCount = sizeof(editorParameters)/sizeof(editorParameters[0]);
     const auto widgetCreator = []() { return new MercurialEditorWidget; };
     for (int i = 0; i < editorCount; i++)
-        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, m_client, describeSlot));
+        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, describeFunc));
 
     addAutoReleasedObject(new VcsSubmitEditorFactory(&submitEditorParameters,
         []() { return new CommitEditor(&submitEditorParameters); }));
diff --git a/src/plugins/perforce/perforceplugin.cpp b/src/plugins/perforce/perforceplugin.cpp
index 53f6284280..2861ad9526 100644
--- a/src/plugins/perforce/perforceplugin.cpp
+++ b/src/plugins/perforce/perforceplugin.cpp
@@ -197,11 +197,13 @@ bool PerforcePlugin::initialize(const QStringList & /* arguments */, QString *er
     addAutoReleasedObject(new VcsSubmitEditorFactory(&submitParameters,
         []() { return new PerforceSubmitEditor(&submitParameters); }));
 
-    static const char *describeSlot = SLOT(describe(QString,QString));
+    const auto describeFunc = [this](const QString &source, const QString &n) {
+        describe(source, n);
+    };
     const int editorCount = sizeof(editorParameters) / sizeof(editorParameters[0]);
     const auto widgetCreator = []() { return new PerforceEditorWidget; };
     for (int i = 0; i < editorCount; i++)
-        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, this, describeSlot));
+        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, describeFunc));
 
     const QString prefix = QLatin1String("p4");
     m_commandLocator = new CommandLocator("Perforce", prefix, prefix);
diff --git a/src/plugins/perforce/perforceplugin.h b/src/plugins/perforce/perforceplugin.h
index 616a1f5204..7c840b9a16 100644
--- a/src/plugins/perforce/perforceplugin.h
+++ b/src/plugins/perforce/perforceplugin.h
@@ -99,8 +99,9 @@ public:
                                             bool quiet,
                                             QString *errorMessage);
 
-public slots:
     void describe(const QString &source, const QString &n);
+
+public slots:
     void vcsAnnotate(const QString &workingDirectory, const QString &file,
                      const QString &revision, int lineNumber);
 
diff --git a/src/plugins/subversion/subversionplugin.cpp b/src/plugins/subversion/subversionplugin.cpp
index 2abc041d12..bdc7654d9e 100644
--- a/src/plugins/subversion/subversionplugin.cpp
+++ b/src/plugins/subversion/subversionplugin.cpp
@@ -224,11 +224,13 @@ bool SubversionPlugin::initialize(const QStringList & /*arguments */, QString *e
     addAutoReleasedObject(new VcsSubmitEditorFactory(&submitParameters,
         []() { return new SubversionSubmitEditor(&submitParameters); }));
 
-    static const char *describeSlot = SLOT(describe(QString,QString));
+    const auto describeFunc = [this](const QString &source, const QString &id) {
+        describe(source, id);
+    };
     const int editorCount = sizeof(editorParameters) / sizeof(editorParameters[0]);
     const auto widgetCreator = []() { return new SubversionEditorWidget; };
     for (int i = 0; i < editorCount; i++)
-        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, this, describeSlot));
+        addAutoReleasedObject(new VcsEditorFactory(editorParameters + i, widgetCreator, describeFunc));
 
     const QString prefix = QLatin1String("svn");
     m_commandLocator = new CommandLocator("Subversion", prefix, prefix);
diff --git a/src/plugins/subversion/subversionplugin.h b/src/plugins/subversion/subversionplugin.h
index 3c614eeb7c..f9312cbcd4 100644
--- a/src/plugins/subversion/subversionplugin.h
+++ b/src/plugins/subversion/subversionplugin.h
@@ -94,13 +94,13 @@ public:
     SubversionResponse runSvn(const QString &workingDir,
                               const QStringList &arguments, int timeOutS,
                               unsigned flags, QTextCodec *outputCodec = 0) const;
+    void describe(const QString &source, const QString &changeNr);
+    void vcsAnnotate(const QString &workingDir, const QString &file,
+                     const QString &revision = QString(), int lineNumber = -1);
 
 public slots:
     void annotateVersion(const QString &workingDirectory, const QString &file,
                          const QString &revision, int lineNumber);
-    void describe(const QString &source, const QString &changeNr);
-    void vcsAnnotate(const QString &workingDir, const QString &file,
-                     const QString &revision = QString(), int lineNumber = -1);
 
 #ifdef WITH_TESTS
 private slots:
diff --git a/src/plugins/vcsbase/basevcseditorfactory.cpp b/src/plugins/vcsbase/basevcseditorfactory.cpp
index a8aa8a1bfb..8b183e5c01 100644
--- a/src/plugins/vcsbase/basevcseditorfactory.cpp
+++ b/src/plugins/vcsbase/basevcseditorfactory.cpp
@@ -52,7 +52,7 @@ namespace VcsBase {
 VcsEditorFactory::VcsEditorFactory(const VcsBaseEditorParameters *parameters,
                                    // Force copy, see QTCREATORBUG-13218
                                    const EditorWidgetCreator editorWidgetCreator,
-                                   QObject *describeReceiver, const char *describeSlot)
+                                   std::function<void(const QString &, const QString &)> describeFunc)
 {
     setProperty("VcsEditorFactoryName", QByteArray(parameters->id));
     setId(parameters->id);
@@ -71,9 +71,9 @@ VcsEditorFactory::VcsEditorFactory(const VcsBaseEditorParameters *parameters,
         return document;
     });
 
-    setEditorWidgetCreator([this, parameters, editorWidgetCreator, describeReceiver, describeSlot]() -> TextEditorWidget* {
+    setEditorWidgetCreator([this, parameters, editorWidgetCreator, describeFunc]() -> TextEditorWidget * {
         auto widget = qobject_cast<VcsBaseEditorWidget *>(editorWidgetCreator());
-        widget->setDescribeSlot(describeReceiver, describeSlot);
+        widget->setDescribeFunc(describeFunc);
         widget->setParameters(parameters);
         return widget;
     });
diff --git a/src/plugins/vcsbase/basevcseditorfactory.h b/src/plugins/vcsbase/basevcseditorfactory.h
index 555f4bafc0..8c2b8cbdf6 100644
--- a/src/plugins/vcsbase/basevcseditorfactory.h
+++ b/src/plugins/vcsbase/basevcseditorfactory.h
@@ -29,6 +29,8 @@
 
 #include <texteditor/texteditor.h>
 
+#include <functional>
+
 namespace VcsBase {
 class VcsBaseEditor;
 class VcsBaseEditorParameters;
@@ -40,8 +42,7 @@ class VCSBASE_EXPORT VcsEditorFactory : public TextEditor::TextEditorFactory
 public:
     VcsEditorFactory(const VcsBaseEditorParameters *parameters,
                      const EditorWidgetCreator editorWidgetCreator,
-                     QObject *describeReceiver,
-                     const char *describeSlot);
+                     std::function<void(const QString &, const QString &)> describeFunc);
 
     static VcsBaseEditor *createEditorById(const char *id);
 };
diff --git a/src/plugins/vcsbase/vcsbaseclient.h b/src/plugins/vcsbase/vcsbaseclient.h
index d693a4357e..4e830bdc66 100644
--- a/src/plugins/vcsbase/vcsbaseclient.h
+++ b/src/plugins/vcsbase/vcsbaseclient.h
@@ -194,15 +194,14 @@ public:
 
     virtual QString findTopLevelForFile(const QFileInfo &file) const = 0;
 
+    virtual void view(const QString &source, const QString &id,
+                      const QStringList &extraOptions = QStringList());
+
 signals:
     void parsedStatus(const QList<VcsBase::VcsBaseClient::StatusItem> &statusList);
     // Passes on changed signals from VcsJob to Control
     void changed(const QVariant &v);
 
-public slots:
-    virtual void view(const QString &source, const QString &id,
-                      const QStringList &extraOptions = QStringList());
-
 protected:
     enum VcsCommandTag
     {
diff --git a/src/plugins/vcsbase/vcsbaseeditor.cpp b/src/plugins/vcsbase/vcsbaseeditor.cpp
index b179923112..30cd8eb6a6 100644
--- a/src/plugins/vcsbase/vcsbaseeditor.cpp
+++ b/src/plugins/vcsbase/vcsbaseeditor.cpp
@@ -159,8 +159,6 @@ void VcsBaseEditor::finalizeInitialization()
     auto widget = qobject_cast<VcsBaseEditorWidget *>(editorWidget());
     QTC_ASSERT(widget, return);
     // Pass on signals.
-    connect(widget, &VcsBaseEditorWidget::describeRequested,
-            this, &VcsBaseEditor::describeRequested);
     connect(widget, &VcsBaseEditorWidget::annotateRevisionRequested,
             this, &VcsBaseEditor::annotateRevisionRequested);
 }
@@ -568,8 +566,7 @@ public:
     bool m_configurationAdded = false;
     QList<AbstractTextCursorHandler *> m_textCursorHandlers;
     QPointer<VcsCommand> m_command;
-    QObject *m_describeReceiver = nullptr;
-    const char *m_describeSlot = nullptr;
+    VcsBaseEditorWidget::DescribeFunc m_describeFunc = nullptr;
     Utils::ProgressIndicator *m_progressIndicator = nullptr;
     bool m_fileLogAnnotateEnabled = false;
     bool m_mouseDragging = false;
@@ -713,17 +710,14 @@ int VcsBaseEditorWidget::lineNumberDigits() const
     return digits;
 }
 
-void VcsBaseEditorWidget::setDescribeSlot(QObject *describeReceiver, const char *describeSlot)
+void VcsBaseEditorWidget::setDescribeFunc(DescribeFunc describeFunc)
 {
-    d->m_describeReceiver = describeReceiver;
-    d->m_describeSlot = describeSlot;
+    d->m_describeFunc = describeFunc;
 }
 
 void VcsBaseEditorWidget::finalizeInitialization()
 {
-    if (d->m_describeReceiver)
-        connect(this, SIGNAL(describeRequested(QString,QString)), d->m_describeReceiver, d->m_describeSlot);
-
+    connect(this, &VcsBaseEditorWidget::describeRequested, this, d->m_describeFunc);
     init();
 }
 
diff --git a/src/plugins/vcsbase/vcsbaseeditor.h b/src/plugins/vcsbase/vcsbaseeditor.h
index 4b765e1f53..b1dc7f1ba9 100644
--- a/src/plugins/vcsbase/vcsbaseeditor.h
+++ b/src/plugins/vcsbase/vcsbaseeditor.h
@@ -128,7 +128,6 @@ public:
                              const QString &revision = QString());
     void finalizeInitialization() override;
 signals:
-    void describeRequested(const QString &source, const QString &change);
     void annotateRevisionRequested(const QString &workingDirectory, const QString &file,
                                    const QString &change, int line);
 };
@@ -158,9 +157,11 @@ protected:
     int lineNumberDigits() const override;
 
 public:
+    typedef std::function<void(const QString &, const QString &)> DescribeFunc;
+
     void finalizeInitialization() override;
     // FIXME: Consolidate these into finalizeInitialization
-    void setDescribeSlot(QObject *describeReceiver, const char *describeSlot);
+    void setDescribeFunc(DescribeFunc describeFunc);
     // void
     virtual void init();
     //