Git: Replace branch dialog with branches side panel

This allows all kind of typical Git workflow (rebasing,
merging, cherry-picking) without having the branches dialog
on top of all windows.

Task-number: QTCREATORBUG-19618
Change-Id: Iab078d79a589ff60fa8385c98ec2a23b352c084c
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/git/branchview.h

@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 Andre Hartmann <aha_1980@gmx.de>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include "branchutils.h"
+
+#include <coreplugin/inavigationwidgetfactory.h>
+
+#include <QPointer>
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+class QPoint;
+class QToolButton;
+class QTreeView;
+QT_END_NAMESPACE;
+
+namespace Utils {
+class ElidingLabel;
+class NavigationTreeView;
+}
+
+namespace Git {
+namespace Internal {
+
+class BranchModel;
+
+class BranchView : public QWidget, public BranchUtils
+{
+    Q_OBJECT
+
+public:
+    explicit BranchView();
+
+    void refreshIfSame(const QString &repository);
+    void refresh(const QString &repository, bool force);
+
+    QToolButton *addButton() const;
+    QToolButton *refreshButton() const;
+
+    QAction *m_includeOldEntriesAction = nullptr;
+    QAction *m_includeTagsAction = nullptr;
+
+private:
+    void refreshCurrentRepository();
+    void resizeColumns();
+    void slotCustomContextMenu(const QPoint &point);
+    void expandAndResize();
+    void setIncludeOldEntries(bool filter);
+    void setIncludeTags(bool includeTags);
+
+    QToolButton *m_addButton = nullptr;
+    QToolButton *m_refreshButton = nullptr;
+    Utils::ElidingLabel *m_repositoryLabel = nullptr;
+    Utils::NavigationTreeView *m_branchView = nullptr;
+};
+
+class BranchViewFactory : public Core::INavigationWidgetFactory
+{
+    Q_OBJECT
+
+public:
+    BranchViewFactory();
+
+    BranchView *view() const;
+
+private:
+    Core::NavigationView createWidget() override;
+
+    QPointer<BranchView> m_view;
+};
+
+} // namespace Internal
+} // namespace Git