QmlDesigner: add new TextEditorView

This is the first iteration but the text editor is not connect
to the others view in all expected cases.

Change-Id: I2fa29a23f9ce1d98d3d6cc8eabddb788525e39cd
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/qmldesigner/components/texteditor/texteditorview.cpp

@@ -0,0 +1,210 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** 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.
+**
+****************************************************************************/
+
+#include "texteditorview.h"
+
+#include <designmodecontext.h>
+#include <designdocument.h>
+#include <modelnode.h>
+#include <model.h>
+#include <zoomaction.h>
+#include <nodeabstractproperty.h>
+#include <nodelistproperty.h>
+
+#include <qmldesignerplugin.h>
+#include <coreplugin/icore.h>
+#include <texteditor/texteditor.h>
+
+#include <QDebug>
+#include <QPair>
+#include <QString>
+#include <QTimer>
+#include <QVBoxLayout>
+#include <QPointer>
+
+namespace QmlDesigner {
+
+class DummyWidget : public QWidget {
+public:
+    DummyWidget(QWidget *parent = nullptr) : QWidget(parent) {
+        QBoxLayout *layout = new QVBoxLayout(this);
+        layout->setMargin(0);
+    }
+    void showEvent(QShowEvent *event) {
+        if (m_widget.isNull())
+            setWidget(QmlDesignerPlugin::instance()->currentDesignDocument()->textEditor()->duplicate()->widget());
+        QWidget::showEvent(event);
+    }
+
+private:
+    void setWidget(QWidget *widget) {
+        if (m_widget)
+            m_widget->deleteLater();
+        m_widget = widget;
+
+        layout()->addWidget(widget);
+    }
+    QPointer<QWidget> m_widget;
+};
+
+
+TextEditorView::TextEditorView(QObject *parent)
+    : AbstractView(parent)
+    , m_dummyWidget(new DummyWidget)
+{
+    // not completely sure that we need this to just call the right help method ->
+    Internal::TextEditorContext *textEditorContext = new Internal::TextEditorContext(m_dummyWidget);
+    Core::ICore::addContextObject(textEditorContext);
+}
+
+TextEditorView::~TextEditorView()
+{
+    m_textEditor->deleteLater();
+    m_dummyWidget->deleteLater();
+}
+
+void TextEditorView::modelAttached(Model *model)
+{
+    Q_ASSERT(model);
+
+    AbstractView::modelAttached(model);
+}
+
+void TextEditorView::modelAboutToBeDetached(Model *model)
+{
+    AbstractView::modelAboutToBeDetached(model);
+}
+
+void TextEditorView::importsChanged(const QList<Import> &/*addedImports*/, const QList<Import> &/*removedImports*/)
+{
+}
+
+void TextEditorView::nodeAboutToBeRemoved(const ModelNode &/*removedNode*/)
+{
+}
+
+void TextEditorView::rootNodeTypeChanged(const QString &/*type*/, int /*majorVersion*/, int /*minorVersion*/)
+{
+}
+
+void TextEditorView::propertiesAboutToBeRemoved(const QList<AbstractProperty>& /*propertyList*/)
+{
+}
+
+void TextEditorView::nodeReparented(const ModelNode &/*node*/, const NodeAbstractProperty &/*newPropertyParent*/, const NodeAbstractProperty &/*oldPropertyParent*/, AbstractView::PropertyChangeFlags /*propertyChange*/)
+{
+}
+
+WidgetInfo TextEditorView::widgetInfo()
+{
+    return createWidgetInfo(m_dummyWidget, 0, "TextEditor", WidgetInfo::CentralPane, 0, tr("Text Editor"));
+}
+
+QString TextEditorView::contextHelpId() const
+{
+    if (m_textEditor) {
+        QString contextHelpId = m_textEditor->contextHelpId();
+        if (!contextHelpId.isEmpty())
+            return m_textEditor->contextHelpId();
+    }
+    return AbstractView::contextHelpId();
+}
+
+void TextEditorView::nodeIdChanged(const ModelNode& /*node*/, const QString &/*newId*/, const QString &/*oldId*/)
+{
+}
+
+void TextEditorView::selectedNodesChanged(const QList<ModelNode> &/*selectedNodeList*/,
+                                          const QList<ModelNode> &/*lastSelectedNodeList*/)
+{
+}
+
+void TextEditorView::customNotification(const AbstractView * /*view*/, const QString &/*identifier*/, const QList<ModelNode> &/*nodeList*/, const QList<QVariant> &/*data*/)
+{
+}
+
+bool TextEditorView::changeToMoveTool()
+{
+    return true;
+}
+
+void TextEditorView::changeToDragTool()
+{
+}
+
+bool TextEditorView::changeToMoveTool(const QPointF &/*beginPoint*/)
+{
+    return true;
+}
+
+void TextEditorView::changeToSelectionTool()
+{
+}
+
+void TextEditorView::changeToResizeTool()
+{
+}
+
+void TextEditorView::changeToTransformTools()
+{
+}
+
+void TextEditorView::changeToCustomTool()
+{
+}
+
+void TextEditorView::auxiliaryDataChanged(const ModelNode &/*node*/, const PropertyName &/*name*/, const QVariant &/*data*/)
+{
+}
+
+void TextEditorView::instancesCompleted(const QVector<ModelNode> &/*completedNodeList*/)
+{
+}
+
+void TextEditorView::instanceInformationsChanged(const QMultiHash<ModelNode, InformationName> &/*informationChangeHash*/)
+{
+}
+
+void TextEditorView::instancesRenderImageChanged(const QVector<ModelNode> &/*nodeList*/)
+{
+}
+
+void TextEditorView::instancesChildrenChanged(const QVector<ModelNode> &/*nodeList*/)
+{
+}
+
+void TextEditorView::rewriterBeginTransaction()
+{
+}
+
+void TextEditorView::rewriterEndTransaction()
+{
+}
+
+void TextEditorView::instancePropertyChanged(const QList<QPair<ModelNode, PropertyName> > &/*propertyList*/)
+{
+}
+}
+