Remove CommandButton

The same can be achieve with a factory method in `Command`, similar to
the existing ones for actions and buttons which synchronize their tool
tips with the shortcut.

Change-Id: I7e17654706b902dfa14f37b958fc2a60705d5cb5
Reviewed-by: hjk <hjk@qt.io>

14 files changed, 73 insertions, 175 deletions

diff --git a/src/plugins/coreplugin/CMakeLists.txt b/src/plugins/coreplugin/CMakeLists.txt
index 6079989c71..22fe02eec7 100644
--- a/src/plugins/coreplugin/CMakeLists.txt
+++ b/src/plugins/coreplugin/CMakeLists.txt
@@ -11,8 +11,6 @@ add_qtc_plugin(Core
     actionmanager/command.cpp
     actionmanager/command.h
     actionmanager/command_p.h
-    actionmanager/commandbutton.cpp
-    actionmanager/commandbutton.h
     actionmanager/commandmappings.cpp
     actionmanager/commandmappings.h
     actionmanager/commandsfile.cpp
diff --git a/src/plugins/coreplugin/actionmanager/command.cpp b/src/plugins/coreplugin/actionmanager/command.cpp
index 415e9ea730..34fb37458f 100644
--- a/src/plugins/coreplugin/actionmanager/command.cpp
+++ b/src/plugins/coreplugin/actionmanager/command.cpp
@@ -571,6 +571,21 @@ QAction *Command::createActionWithShortcutToolTip(Id commandId, QObject *parent)
 }
 
 /*!
+    Returns a new QToolButton with the command's icon, icon text, and text, that
+    given by \a commandId. Sets the button's parent to \a parent.
+    The action's tool tip is the action's text, augmented with the command's
+    main keyboard shortcut. Other properties of the button are not updated
+    automatically.
+    \sa createActionWithShortcutToolTip()
+*/
+QToolButton *Command::createToolButtonWithShortcutToolTip(Utils::Id commandId, QWidget *parent)
+{
+    auto button = new QToolButton(parent);
+    button->setDefaultAction(createActionWithShortcutToolTip(commandId, button));
+    return button;
+}
+
+/*!
     Returns a tool button for \a action.
 
     Appends the main keyboard shortcut \a cmd to the tool tip of the action.
@@ -584,4 +599,15 @@ QToolButton *Command::toolButtonWithAppendedShortcut(QAction *action, Command *c
     return button;
 }
 
+/*!
+    Returns a tool button for \a action.
+
+    Appends the main keyboard shortcut of the command with ID \a commandId
+    to the tool tip of the button.
+*/
+QToolButton *Command::toolButtonWithAppendedShortcut(QAction *action, Utils::Id commandId)
+{
+    return toolButtonWithAppendedShortcut(action, ActionManager::command(commandId));
+}
+
 } // namespace Core
diff --git a/src/plugins/coreplugin/actionmanager/command.h b/src/plugins/coreplugin/actionmanager/command.h
index 944ca083a7..03f2d594bd 100644
--- a/src/plugins/coreplugin/actionmanager/command.h
+++ b/src/plugins/coreplugin/actionmanager/command.h
@@ -72,7 +72,10 @@ public:
     void augmentActionWithShortcutToolTip(QAction *action) const;
 
     static QAction *createActionWithShortcutToolTip(Utils::Id commandId, QObject *parent);
+    static QToolButton *createToolButtonWithShortcutToolTip(Utils::Id commandId,
+                                                            QWidget *parent = nullptr);
     static QToolButton *toolButtonWithAppendedShortcut(QAction *action, Command *cmd);
+    static QToolButton *toolButtonWithAppendedShortcut(QAction *action, Utils::Id commandId);
 
     bool isScriptable() const;
     bool isScriptable(const Context &) const;
diff --git a/src/plugins/coreplugin/actionmanager/commandbutton.cpp b/src/plugins/coreplugin/actionmanager/commandbutton.cpp
deleted file mode 100644
index 96bb21099b..0000000000
--- a/src/plugins/coreplugin/actionmanager/commandbutton.cpp
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (C) 2016 Konstantin Tokarev.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
-
-#include "commandbutton.h"
-#include "actionmanager.h"
-#include "command.h"
-
-#include <utils/proxyaction.h>
-#include <utils/qtcassert.h>
-
-using namespace Core;
-using namespace Utils;
-
-/*!
-    \class Core::CommandButton
-    \inheaderfile coreplugin/actionmanager/commandbutton.h
-    \inmodule QtCreator
-
-    \brief The CommandButton class is an action associated with one of
-    the registered Command objects.
-
-    The tooltip of the button consists of toolTipBase property value and Command's
-    key sequence which is automatically updated when user changes it.
- */
-
-/*!
-    \internal
-*/
-CommandButton::CommandButton(QWidget *parent)
-    : QToolButton(parent)
-{}
-
-/*!
-    \internal
-*/
-CommandButton::CommandButton(Utils::Id id, QWidget *parent)
-    : QToolButton(parent)
-{
-    setCommandId(id);
-}
-
-void CommandButton::setCommandId(Utils::Id id)
-{
-    if (m_command)
-        disconnect(m_command.data(),
-                   &Command::keySequenceChanged,
-                   this,
-                   &CommandButton::updateToolTip);
-
-    m_command = ActionManager::command(id);
-    QTC_ASSERT(m_command, return);
-
-    if (m_toolTipBase.isEmpty())
-        m_toolTipBase = m_command->description();
-
-    updateToolTip();
-    connect(m_command.data(), &Command::keySequenceChanged, this, &CommandButton::updateToolTip);
-}
-
-/*!
-    The base tool tip that is extended with the command's shortcut.
-    Defaults to the command's description.
-
-    \sa Command::description()
-*/
-QString CommandButton::toolTipBase() const
-{
-    return m_toolTipBase;
-}
-
-/*!
-    Sets the base tool tip that is extended with the command's shortcut to
-    \a toolTipBase.
-
-    \sa toolTipBase()
-*/
-void CommandButton::setToolTipBase(const QString &toolTipBase)
-{
-    m_toolTipBase = toolTipBase;
-    updateToolTip();
-}
-
-void CommandButton::updateToolTip()
-{
-    if (m_command)
-        setToolTip(Utils::ProxyAction::stringWithAppendedShortcut(m_toolTipBase,
-                                                                  m_command->keySequence()));
-}
diff --git a/src/plugins/coreplugin/actionmanager/commandbutton.h b/src/plugins/coreplugin/actionmanager/commandbutton.h
deleted file mode 100644
index 70ec6e7ab8..0000000000
--- a/src/plugins/coreplugin/actionmanager/commandbutton.h
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (C) 2016 Konstantin Tokarev.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
-
-#pragma once
-
-#include "../core_global.h"
-
-#include <utils/id.h>
-
-#include <QAction>
-#include <QPointer>
-#include <QString>
-#include <QToolButton>
-
-namespace Core {
-
-class Command;
-
-class CORE_EXPORT CommandButton : public QToolButton
-{
-    Q_OBJECT
-
-public:
-    explicit CommandButton(QWidget *parent = nullptr);
-    explicit CommandButton(Utils::Id id, QWidget *parent = nullptr);
-    void setCommandId(Utils::Id id);
-    QString toolTipBase() const;
-    void setToolTipBase(const QString &toolTipBase);
-
-private:
-    void updateToolTip();
-
-    QPointer<Command> m_command;
-    QString m_toolTipBase;
-};
-}
diff --git a/src/plugins/coreplugin/coreplugin.qbs b/src/plugins/coreplugin/coreplugin.qbs
index 9bd3923a6f..3c1dd74063 100644
--- a/src/plugins/coreplugin/coreplugin.qbs
+++ b/src/plugins/coreplugin/coreplugin.qbs
@@ -186,7 +186,6 @@ QtcPlugin {
             "actioncontainer.cpp", "actioncontainer.h", "actioncontainer_p.h",
             "actionmanager.cpp", "actionmanager.h", "actionmanager_p.h",
             "command.cpp", "command.h", "command_p.h",
-            "commandbutton.cpp", "commandbutton.h",
             "commandmappings.cpp", "commandmappings.h",
             "commandsfile.cpp", "commandsfile.h",
         ]
diff --git a/src/plugins/coreplugin/ioutputpane.h b/src/plugins/coreplugin/ioutputpane.h
index 353bd63b0a..18cf530005 100644
--- a/src/plugins/coreplugin/ioutputpane.h
+++ b/src/plugins/coreplugin/ioutputpane.h
@@ -10,7 +10,6 @@
 #include <utils/id.h>
 
 namespace Core {
-class CommandButton;
 class IContext;
 class OutputWindow;
 
@@ -103,8 +102,8 @@ private:
     Utils::Id m_id;
     QString m_displayName;
     int m_priority = -1;
-    Core::CommandButton * const m_zoomInButton;
-    Core::CommandButton * const m_zoomOutButton;
+    QToolButton *m_zoomInButton;
+    QToolButton *m_zoomOutButton;
     Utils::FancyLineEdit *m_filterOutputLineEdit = nullptr;
     bool m_filterRegexp = false;
     bool m_invertFilter = false;
diff --git a/src/plugins/coreplugin/outputpanemanager.cpp b/src/plugins/coreplugin/outputpanemanager.cpp
index c1eac2ade8..a6e83474cf 100644
--- a/src/plugins/coreplugin/outputpanemanager.cpp
+++ b/src/plugins/coreplugin/outputpanemanager.cpp
@@ -6,7 +6,6 @@
 #include "actionmanager/actioncontainer.h"
 #include "actionmanager/actionmanager.h"
 #include "actionmanager/command.h"
-#include "actionmanager/commandbutton.h"
 #include "coreplugintr.h"
 #include "editormanager/editormanager.h"
 #include "editormanager/ieditor.h"
@@ -67,20 +66,18 @@ static bool g_managerConstructed = false; // For debugging reasons.
 // OutputPane
 
 IOutputPane::IOutputPane(QObject *parent)
-    : QObject(parent),
-      m_zoomInButton(new Core::CommandButton),
-      m_zoomOutButton(new Core::CommandButton)
+    : QObject(parent)
 {
     // We need all pages first. Ignore latecomers and shout.
     QTC_ASSERT(!g_managerConstructed, return);
     g_outputPanes.append(OutputPaneData(this));
 
+    m_zoomInButton = Command::createToolButtonWithShortcutToolTip(Constants::ZOOM_IN);
     m_zoomInButton->setIcon(Utils::Icons::PLUS_TOOLBAR.icon());
-    m_zoomInButton->setCommandId(Constants::ZOOM_IN);
     connect(m_zoomInButton, &QToolButton::clicked, this, [this] { emit zoomInRequested(1); });
 
+    m_zoomOutButton = Command::createToolButtonWithShortcutToolTip(Constants::ZOOM_OUT);
     m_zoomOutButton->setIcon(Utils::Icons::MINUS_TOOLBAR.icon());
-    m_zoomOutButton->setCommandId(Constants::ZOOM_OUT);
     connect(m_zoomOutButton, &QToolButton::clicked, this, [this] { emit zoomOutRequested(1); });
 }
 
diff --git a/src/plugins/haskell/haskelleditorfactory.cpp b/src/plugins/haskell/haskelleditorfactory.cpp
index 3371a8734c..5ddcb11e51 100644
--- a/src/plugins/haskell/haskelleditorfactory.cpp
+++ b/src/plugins/haskell/haskelleditorfactory.cpp
@@ -8,7 +8,7 @@
 #include "haskellmanager.h"
 #include "haskelltr.h"
 
-#include <coreplugin/actionmanager/commandbutton.h>
+#include <coreplugin/actionmanager/command.h>
 #include <coreplugin/coreplugintr.h>
 
 #include <texteditor/textdocument.h>
@@ -23,8 +23,8 @@ namespace Haskell::Internal {
 static QWidget *createEditorWidget()
 {
     auto widget = new TextEditorWidget;
-    auto ghciButton = new Core::CommandButton(Constants::A_RUN_GHCI, widget);
-    ghciButton->setText(Tr::tr("GHCi"));
+    auto ghciButton = Core::Command::createToolButtonWithShortcutToolTip(Constants::A_RUN_GHCI);
+    ghciButton->defaultAction()->setIconText(Tr::tr("GHCi"));
     QObject::connect(ghciButton, &QToolButton::clicked, widget, [widget] {
         openGhci(widget->textDocument()->filePath());
     });
diff --git a/src/plugins/modeleditor/modeleditor.cpp b/src/plugins/modeleditor/modeleditor.cpp
index 0fdeb83b29..f17a35e434 100644
--- a/src/plugins/modeleditor/modeleditor.cpp
+++ b/src/plugins/modeleditor/modeleditor.cpp
@@ -52,7 +52,6 @@
 #include <coreplugin/icore.h>
 #include <coreplugin/editormanager/editormanager.h>
 #include <coreplugin/minisplitter.h>
-#include <coreplugin/actionmanager/commandbutton.h>
 #include <utils/fadingindicator.h>
 #include <utils/fileutils.h>
 #include <utils/layoutbuilder.h>
@@ -71,18 +70,19 @@
 #include <QImageWriter>
 #include <QLabel>
 #include <QMap>
+#include <QMenu>
 #include <QMessageBox>
 #include <QPainter>
 #include <QPixmap>
 #include <QScrollArea>
+#include <QScrollBar>
 #include <QStackedWidget>
 #include <QStyleFactory>
 #include <QTimer>
 #include <QToolBox>
+#include <QToolButton>
 #include <QUndoStack>
 #include <QVBoxLayout>
-#include <QMenu>
-#include <QScrollBar>
 
 #include <algorithm>
 
@@ -297,8 +297,9 @@ void ModelEditor::init()
     toolbarLayout->setContentsMargins(0, 0, 0, 0);
     toolbarLayout->setSpacing(0);
 
-    auto openParentButton = new CommandButton(Constants::OPEN_PARENT_DIAGRAM, d->toolbar);
-    openParentButton->setDefaultAction(d->actionHandler->openParentDiagramAction());
+    auto openParentButton
+        = Command::toolButtonWithAppendedShortcut(d->actionHandler->openParentDiagramAction(),
+                                                  Constants::OPEN_PARENT_DIAGRAM);
     toolbarLayout->addWidget(openParentButton);
 
     d->diagramSelector = new QComboBox(d->toolbar);
@@ -327,8 +328,9 @@ void ModelEditor::init()
                                                         d->toolbar));
     toolbarLayout->addSpacing(20);
 
-    auto syncToggleButton = new CommandButton(Constants::ACTION_SYNC_BROWSER, d->toolbar);
-    syncToggleButton->setDefaultAction(d->actionHandler->synchronizeBrowserAction());
+    auto syncToggleButton
+        = Command::toolButtonWithAppendedShortcut(d->actionHandler->synchronizeBrowserAction(),
+                                                  Constants::ACTION_SYNC_BROWSER);
     QMenu *syncMenu = new QMenu(syncToggleButton);
     QActionGroup *syncGroup = new QActionGroup(syncMenu);
     d->syncBrowserWithDiagramAction = syncMenu->addAction(Tr::tr("Synchronize Structure with Diagram"));
diff --git a/src/plugins/projectexplorer/projectwindow.cpp b/src/plugins/projectexplorer/projectwindow.cpp
index 547faa9157..c0577c5c52 100644
--- a/src/plugins/projectexplorer/projectwindow.cpp
+++ b/src/plugins/projectexplorer/projectwindow.cpp
@@ -21,7 +21,7 @@
 #include "targetsettingspanel.h"
 
 #include <coreplugin/actionmanager/actionmanager.h>
-#include <coreplugin/actionmanager/commandbutton.h>
+#include <coreplugin/actionmanager/command.h>
 #include <coreplugin/coreconstants.h>
 #include <coreplugin/coreicons.h>
 #include <coreplugin/coreplugintr.h>
@@ -56,6 +56,7 @@
 #include <QPushButton>
 #include <QStyledItemDelegate>
 #include <QTimer>
+#include <QToolButton>
 #include <QTreeView>
 #include <QVBoxLayout>
 
@@ -136,12 +137,14 @@ BuildSystemOutputWindow::BuildSystemOutputWindow()
     setBaseFont(TextEditor::TextEditorSettings::fontSettings().font());
 
     m_zoomIn.setIcon(Utils::Icons::PLUS_TOOLBAR.icon());
+    m_zoomIn.setText(ActionManager::command(Core::Constants::ZOOM_IN)->action()->text());
     connect(&m_zoomIn, &QAction::triggered, this, [this] { zoomIn(); });
     ActionManager::registerAction(&m_zoomIn,
                                   Core::Constants::ZOOM_IN,
                                   Context(kBuildSystemOutputContext));
 
     m_zoomOut.setIcon(Utils::Icons::MINUS_TOOLBAR.icon());
+    m_zoomOut.setText(ActionManager::command(Core::Constants::ZOOM_OUT)->action()->text());
     connect(&m_zoomOut, &QAction::triggered, this, [this] { zoomOut(); });
     ActionManager::registerAction(&m_zoomOut,
                                   Core::Constants::ZOOM_OUT,
@@ -152,9 +155,8 @@ QWidget *BuildSystemOutputWindow::toolBar()
 {
     if (!m_toolBar) {
         m_toolBar = new StyledBar(this);
-        auto clearButton = new CommandButton(Core::Constants::OUTPUTPANE_CLEAR);
-        clearButton->setDefaultAction(&m_clear);
-        clearButton->setToolTipBase(m_clear.text());
+        auto clearButton
+            = Command::toolButtonWithAppendedShortcut(&m_clear, Core::Constants::OUTPUTPANE_CLEAR);
 
         m_filterOutputLineEdit = new FancyLineEdit;
         m_filterOutputLineEdit->setButtonVisible(FancyLineEdit::Left, true);
@@ -178,10 +180,10 @@ QWidget *BuildSystemOutputWindow::toolBar()
             popup->show();
         });
 
-        auto zoomInButton = new CommandButton(Core::Constants::ZOOM_IN);
-        zoomInButton->setDefaultAction(&m_zoomIn);
-        auto zoomOutButton = new CommandButton(Core::Constants::ZOOM_OUT);
-        zoomOutButton->setDefaultAction(&m_zoomOut);
+        auto zoomInButton = Command::toolButtonWithAppendedShortcut(&m_zoomIn,
+                                                                    Core::Constants::ZOOM_IN);
+        auto zoomOutButton = Command::toolButtonWithAppendedShortcut(&m_zoomOut,
+                                                                     Core::Constants::ZOOM_OUT);
 
         auto layout = new QHBoxLayout;
         layout->setContentsMargins(0, 0, 0, 0);
diff --git a/src/plugins/python/pythoneditor.cpp b/src/plugins/python/pythoneditor.cpp
index f8d6a83a4a..ddd30f2acf 100644
--- a/src/plugins/python/pythoneditor.cpp
+++ b/src/plugins/python/pythoneditor.cpp
@@ -15,7 +15,6 @@
 #include "pythonutils.h"
 
 #include <coreplugin/actionmanager/actionmanager.h>
-#include <coreplugin/actionmanager/commandbutton.h>
 #include <coreplugin/coreplugintr.h>
 #include <coreplugin/icore.h>
 
diff --git a/src/plugins/resourceeditor/resourceeditor.cpp b/src/plugins/resourceeditor/resourceeditor.cpp
index 54ea676713..2bc7d443bc 100644
--- a/src/plugins/resourceeditor/resourceeditor.cpp
+++ b/src/plugins/resourceeditor/resourceeditor.cpp
@@ -10,7 +10,7 @@
 #include "qrceditor/resourcefile_p.h"
 
 #include <coreplugin/actionmanager/actionmanager.h>
-#include <coreplugin/actionmanager/commandbutton.h>
+#include <coreplugin/actionmanager/command.h>
 #include <coreplugin/coreplugintr.h>
 #include <coreplugin/editormanager/editormanager.h>
 #include <coreplugin/editormanager/ieditorfactory.h>
@@ -27,6 +27,7 @@
 #include <QDebug>
 #include <QMenu>
 #include <QToolBar>
+#include <QToolButton>
 
 using namespace Core;
 using namespace Utils;
@@ -143,8 +144,8 @@ ResourceEditorImpl::ResourceEditorImpl()
     setContext(Context(Constants::C_RESOURCEEDITOR));
     setWidget(m_resourceEditor);
 
-    CommandButton *refreshButton = new CommandButton(Constants::REFRESH, m_toolBar);
-    refreshButton->setIcon(QIcon(QLatin1String(":/texteditor/images/finddocuments.png")));
+    QToolButton *refreshButton = Command::createToolButtonWithShortcutToolTip(Constants::REFRESH);
+    refreshButton->defaultAction()->setIcon(QIcon(":/texteditor/images/finddocuments.png"));
     connect(refreshButton, &QAbstractButton::clicked, m_resourceEditor, &QrcEditor::refresh);
     m_toolBar->addWidget(refreshButton);
 
diff --git a/src/plugins/texteditor/markdowneditor.cpp b/src/plugins/texteditor/markdowneditor.cpp
index 6f250d23eb..9612b9a001 100644
--- a/src/plugins/texteditor/markdowneditor.cpp
+++ b/src/plugins/texteditor/markdowneditor.cpp
@@ -9,7 +9,6 @@
 
 #include <aggregation/aggregate.h>
 #include <coreplugin/actionmanager/actionmanager.h>
-#include <coreplugin/actionmanager/commandbutton.h>
 #include <coreplugin/coreconstants.h>
 #include <coreplugin/coreplugintr.h>
 #include <coreplugin/icore.h>
@@ -134,33 +133,31 @@ public:
         }
         agg->add(m_widget.get());
 
-        m_togglePreviewVisible = new CommandButton(TOGGLEPREVIEW_ACTION);
-        m_togglePreviewVisible->setText(m_togglePreviewVisible->toolTipBase());
+        m_togglePreviewVisible = Command::createToolButtonWithShortcutToolTip(TOGGLEPREVIEW_ACTION);
         m_togglePreviewVisible->setCheckable(true);
         m_togglePreviewVisible->setChecked(showPreview);
         m_previewWidget->setVisible(showPreview);
 
-        m_toggleEditorVisible = new CommandButton(TOGGLEEDITOR_ACTION);
-        m_toggleEditorVisible->setText(m_toggleEditorVisible->toolTipBase());
+        m_toggleEditorVisible = Command::createToolButtonWithShortcutToolTip(TOGGLEEDITOR_ACTION);
         m_toggleEditorVisible->setCheckable(true);
         m_toggleEditorVisible->setChecked(showEditor);
         m_textEditorWidget->setVisible(showEditor);
 
-        auto button = new CommandButton(EMPHASIS_ACTION);
-        button->setText("i");
+        auto button = Command::createToolButtonWithShortcutToolTip(EMPHASIS_ACTION);
+        button->defaultAction()->setIconText("i");
         button->setFont([button]{ auto f = button->font(); f.setItalic(true); return f; }());
         connect(button, &QToolButton::clicked, this, &MarkdownEditor::triggerEmphasis);
         m_markDownButtons.append(button);
-        button = new CommandButton(STRONG_ACTION);
-        button->setText("b");
+        button = Command::createToolButtonWithShortcutToolTip(STRONG_ACTION);
+        button->defaultAction()->setIconText("b");
         button->setFont([button]{ auto f = button->font(); f.setBold(true); return f; }());
         connect(button, &QToolButton::clicked, this, &MarkdownEditor::triggerStrong);
         m_markDownButtons.append(button);
-        button = new CommandButton(INLINECODE_ACTION);
-        button->setText("`");
+        button = Command::createToolButtonWithShortcutToolTip(INLINECODE_ACTION);
+        button->defaultAction()->setIconText("`");
         connect(button, &QToolButton::clicked, this, &MarkdownEditor::triggerInlineCode);
         m_markDownButtons.append(button);
-        button = new CommandButton(LINK_ACTION);
+        button = Command::createToolButtonWithShortcutToolTip(LINK_ACTION);
         button->setIcon(Utils::Icons::LINK_TOOLBAR.icon());
         connect(button, &QToolButton::clicked, this, &MarkdownEditor::triggerLink);
         m_markDownButtons.append(button);
@@ -173,8 +170,7 @@ public:
         for (auto button : m_markDownButtons | Utils::views::reverse)
             m_textEditorWidget->insertExtraToolBarWidget(TextEditorWidget::Left, button);
 
-        m_swapViews = new CommandButton(SWAPVIEWS_ACTION);
-        m_swapViews->setText(m_swapViews->toolTipBase());
+        m_swapViews = Command::createToolButtonWithShortcutToolTip(SWAPVIEWS_ACTION);
         m_swapViews->setEnabled(showEditor && showPreview);
 
         m_swapViewsAction = m_textEditorWidget->insertExtraToolBarWidget(TextEditorWidget::Right, m_swapViews);
@@ -486,9 +482,9 @@ private:
     TextEditorWidget *m_textEditorWidget;
     TextDocumentPtr m_document;
     QList<QToolButton *> m_markDownButtons;
-    CommandButton *m_toggleEditorVisible;
-    CommandButton *m_togglePreviewVisible;
-    CommandButton *m_swapViews;
+    QToolButton *m_toggleEditorVisible;
+    QToolButton *m_togglePreviewVisible;
+    QToolButton *m_swapViews;
     QAction *m_toggleEditorVisibleAction;
     QAction *m_togglePreviewVisibleAction;
     QAction *m_swapViewsAction;