Git: Enable renaming local branches by direct editing

Change-Id: I7edab94d949a6e48642f280af52fd156c803cafb
Reviewed-by: André Hartmann <aha_1980@gmx.de>

src/plugins/git/branchadddialog.cpp

@@ -24,9 +24,11 @@
 ****************************************************************************/
 
 #include "branchadddialog.h"
+#include "branchmodel.h"
 #include "ui_branchadddialog.h"
 #include "gitplugin.h"
 
+#include <utils/fancylineedit.h>
 #include <utils/hostosinfo.h>
 
 #include <QPushButton>
@@ -87,6 +89,21 @@ private:
     QStringList m_localBranches;
 };
 
+BranchValidationDelegate::BranchValidationDelegate(QWidget *parent, BranchModel *model)
+    : QItemDelegate(parent)
+    , m_model(model)
+{
+}
+
+QWidget *BranchValidationDelegate::createEditor(QWidget *parent,
+                                                const QStyleOptionViewItem & /*option*/,
+                                                const QModelIndex & /*index*/) const
+{
+    auto lineEdit = new Utils::FancyLineEdit(parent);
+    BranchNameValidator *validator = new BranchNameValidator(m_model->localBranchNames(), lineEdit);
+    lineEdit->setValidator(validator);
+    return lineEdit;
+}
 
 BranchAddDialog::BranchAddDialog(const QStringList &localBranches, bool addBranch, QWidget *parent) :
     QDialog(parent),

src/plugins/git/branchadddialog.h

@@ -26,13 +26,26 @@
 #pragma once
 
 #include <QDialog>
+#include <QItemDelegate>
 
 namespace Git {
 namespace Internal {
 
+class BranchModel;
 
 namespace Ui { class BranchAddDialog; }
 
+class BranchValidationDelegate : public QItemDelegate
+{
+public:
+    BranchValidationDelegate(QWidget *parent, BranchModel *model);
+    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option,
+                          const QModelIndex &index) const override;
+
+private:
+    BranchModel *m_model;
+};
+
 class BranchAddDialog : public QDialog
 {
     Q_OBJECT

src/plugins/git/branchmodel.cpp

@@ -317,7 +317,10 @@ Qt::ItemFlags BranchModel::flags(const QModelIndex &index) const
     BranchNode *node = indexToNode(index);
     if (!node)
         return Qt::NoItemFlags;
-    return Qt::ItemIsSelectable | Qt::ItemIsEnabled;
+    Qt::ItemFlags res = Qt::ItemIsSelectable | Qt::ItemIsEnabled;
+    if (node->isLeaf() && node->isLocal())
+        res |= Qt::ItemIsEditable;
+    return res;
 }
 
 void BranchModel::clear()

src/plugins/git/branchview.cpp

@@ -126,6 +126,9 @@ BranchView::BranchView() :
             this, &BranchView::BranchView::setIncludeTags);
 
     m_branchView->setContextMenuPolicy(Qt::CustomContextMenu);
+    m_branchView->setEditTriggers(QAbstractItemView::SelectedClicked
+                                  | QAbstractItemView::EditKeyPressed);
+    m_branchView->setItemDelegate(new BranchValidationDelegate(this, m_model));
     connect(m_branchView, &QAbstractItemView::doubleClicked,
             this, [this](const QModelIndex &idx) { log(m_filterModel->mapToSource(idx)); });
     connect(m_branchView, &QWidget::customContextMenuRequested,