Add some sandbox for hjkl folks.

Note that <Esc> is called <Shift-Esc>.

src/plugins/fakevim/fakevimplugin.cpp

@@ -0,0 +1,189 @@
+/***************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact:  Qt Software Information (qt-info@nokia.com)
+**
+**
+** Non-Open Source Usage
+**
+** Licensees may use this file in accordance with the Qt Beta Version
+** License Agreement, Agreement version 2.2 provided with the Software or,
+** alternatively, in accordance with the terms contained in a written
+** agreement between you and Nokia.
+**
+** GNU General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the packaging
+** of this file.  Please review the following information to ensure GNU
+** General Public Licensing requirements will be met:
+**
+** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt GPL Exception
+** version 1.3, included in the file GPL_EXCEPTION.txt in this package.
+**
+***************************************************************************/
+
+#include "fakevimplugin.h"
+
+#include "handler.h"
+
+#include <coreplugin/actionmanager/actionmanagerinterface.h>
+#include <coreplugin/coreconstants.h>
+#include <coreplugin/editormanager/editormanager.h>
+#include <coreplugin/icore.h>
+#include <coreplugin/messagemanager.h>
+#include <coreplugin/modemanager.h>
+#include <coreplugin/uniqueidmanager.h>
+
+#include <projectexplorer/projectexplorerconstants.h>
+#include <projectexplorer/session.h>
+
+#include <texteditor/basetexteditor.h>
+#include <texteditor/basetextmark.h>
+#include <texteditor/itexteditor.h>
+#include <texteditor/texteditorconstants.h>
+
+#include <utils/qtcassert.h>
+
+#include <QtCore/QDebug>
+#include <QtCore/qplugin.h>
+#include <QtCore/QObject>
+#include <QtCore/QPoint>
+#include <QtCore/QSettings>
+
+#include <QtGui/QPlainTextEdit>
+#include <QtGui/QTextBlock>
+#include <QtGui/QTextCursor>
+
+
+using namespace FakeVim::Internal;
+//using namespace FakeVim::Constants;
+using namespace TextEditor;
+using namespace Core;
+using namespace ProjectExplorer;
+
+
+namespace FakeVim {
+namespace Constants {
+
+const char * const INSTALL_HANDLER        = "FakeVim.InstallHandler";
+const char * const INSTALL_KEY            = "Alt+V,Alt+V";
+
+} // namespace Constants
+} // namespace FakeVim
+
+
+///////////////////////////////////////////////////////////////////////
+//
+// FakeVimPlugin
+//
+///////////////////////////////////////////////////////////////////////
+
+FakeVimPlugin::FakeVimPlugin()
+{
+    m_pm = 0;
+    m_handler = 0;
+}
+
+FakeVimPlugin::~FakeVimPlugin()
+{}
+
+void FakeVimPlugin::shutdown()
+{
+    delete m_handler;
+    m_handler = 0;
+}
+
+bool FakeVimPlugin::initialize(const QStringList &arguments, QString *error_message)
+{
+    Q_UNUSED(arguments);
+    Q_UNUSED(error_message);
+
+    m_handler = new FakeVimHandler;
+
+    m_pm = ExtensionSystem::PluginManager::instance();
+
+    ICore *core = m_pm->getObject<Core::ICore>();
+    QTC_ASSERT(core, return false);
+
+    Core::ActionManagerInterface *actionManager = core->actionManager();
+    QTC_ASSERT(actionManager, return false);
+
+    QList<int> globalcontext;
+    globalcontext << Core::Constants::C_GLOBAL_ID;
+
+    m_installHandlerAction = new QAction(this);
+    m_installHandlerAction->setText(tr("Set vi-Style Keyboard Action Handler"));
+    
+    Core::ICommand *cmd = 0;
+    cmd = actionManager->registerAction(m_installHandlerAction,
+        Constants::INSTALL_HANDLER, globalcontext);
+    cmd->setDefaultKeySequence(QKeySequence(Constants::INSTALL_KEY));
+
+    IActionContainer *advancedMenu =
+        actionManager->actionContainer(Core::Constants::M_EDIT_ADVANCED);
+    advancedMenu->addAction(cmd);
+
+    connect(m_installHandlerAction, SIGNAL(triggered()),
+        this, SLOT(installHandler()));
+    return true;
+}
+
+void FakeVimPlugin::extensionsInitialized()
+{
+}
+
+void FakeVimPlugin::installHandler()
+{
+    ICore *core = m_pm->getObject<Core::ICore>();
+    if (!core || !core->editorManager())
+        return;
+    Core::IEditor *editor = core->editorManager()->currentEditor();
+    ITextEditor *textEditor = qobject_cast<ITextEditor*>(editor);
+    if (!textEditor)
+        return;
+
+    QWidget *widget = textEditor->widget();
+    QPlainTextEdit *plainTextEdit = qobject_cast<QPlainTextEdit *>(widget);
+    if (!plainTextEdit)
+        return;
+    plainTextEdit->removeEventFilter(m_handler);
+    plainTextEdit->installEventFilter(m_handler);
+    QFont font = plainTextEdit->font();
+    //font.setFamily("Monospace");
+    m_savedCursorWidth = plainTextEdit->cursorWidth();
+    plainTextEdit->setCursorWidth(QFontMetrics(font).width(QChar('x')));
+
+    //QMainWindow mw;
+    connect(m_handler, SIGNAL(commandBufferChanged(QString)),
+        this, SLOT(showCommandBuffer(QString)));
+    connect(m_handler, SIGNAL(quitRequested(QObject *)),
+        this, SLOT(removeHandler(QObject *)));
+}
+
+void FakeVimPlugin::removeHandler(QObject *ob)
+{
+    ob->removeEventFilter(m_handler);
+    QPlainTextEdit *plainTextEdit = qobject_cast<QPlainTextEdit *>(ob);
+    if (!plainTextEdit)
+        return;
+    plainTextEdit->setCursorWidth(m_savedCursorWidth);
+}
+
+void FakeVimPlugin::showCommandBuffer(const QString &contents)
+{
+    //qDebug() << "CMD: " << contents;
+}
+
+
+//#include "fakevimplugin.moc"
+
+Q_EXPORT_PLUGIN(FakeVimPlugin)