ScriptConsole: Move from Debugger to QmlJSTools

The console is now a part of qmljstools plugin. The console
appears as an output pane. A dummy QScriptEngine evaluates
expressions when a declarative debug session is not in
progress. During a debug session, the expressions are
evaluated by the debug services.

Task-Number: QTCREATORBUG-7402

Change-Id: Ic2eeac44fb335c706be03b89f8672b0356efe984
Reviewed-by: Christiaan Janssen <christiaan.janssen@digia.com>
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/qmljstools/qmlconsoleitemmodel.cpp

@@ -0,0 +1,252 @@
+#include "qmlconsoleitemmodel.h"
+
+#include <utils/qtcassert.h>
+
+#include <QFontMetrics>
+
+namespace QmlJSTools {
+namespace Internal {
+
+///////////////////////////////////////////////////////////////////////
+//
+// QmlConsoleItemModel
+//
+///////////////////////////////////////////////////////////////////////
+
+QmlConsoleItemModel::QmlConsoleItemModel(QObject *parent) :
+    QAbstractItemModel(parent),
+    m_hasEditableRow(false),
+    m_rootItem(new QmlConsoleItem(0)),
+    m_maxSizeOfFileName(0)
+{
+}
+
+QmlConsoleItemModel::~QmlConsoleItemModel()
+{
+    delete m_rootItem;
+}
+
+void QmlConsoleItemModel::clear()
+{
+    beginResetModel();
+    reset();
+    delete m_rootItem;
+    m_rootItem = new QmlConsoleItem(0);
+    endResetModel();
+
+    if (m_hasEditableRow)
+        appendEditableRow();
+}
+
+bool QmlConsoleItemModel::appendItem(QmlConsoleItem *item, int position)
+{
+    if (position < 0)
+        position = m_rootItem->childCount() - 1;
+
+    if (position < 0)
+        position = 0;
+
+    beginInsertRows(QModelIndex(), position, position);
+    bool success = m_rootItem->insertChild(position, item);
+    endInsertRows();
+
+    return success;
+}
+
+bool QmlConsoleItemModel::appendMessage(QmlConsoleItem::ItemType itemType,
+                                        const QString &message, int position)
+{
+    return appendItem(new QmlConsoleItem(m_rootItem, itemType, message), position);
+}
+
+void QmlConsoleItemModel::setHasEditableRow(bool hasEditableRow)
+{
+    if (m_hasEditableRow && !hasEditableRow)
+        removeEditableRow();
+
+    if (!m_hasEditableRow && hasEditableRow)
+        appendEditableRow();
+
+    m_hasEditableRow = hasEditableRow;
+}
+
+bool QmlConsoleItemModel::hasEditableRow() const
+{
+    return m_hasEditableRow;
+}
+
+void QmlConsoleItemModel::appendEditableRow()
+{
+    int position = m_rootItem->childCount();
+    if (appendItem(new QmlConsoleItem(m_rootItem, QmlConsoleItem::InputType), position))
+        emit selectEditableRow(index(position, 0), QItemSelectionModel::ClearAndSelect);
+}
+
+void QmlConsoleItemModel::removeEditableRow()
+{
+    if (m_rootItem->child(m_rootItem->childCount() - 1)->itemType == QmlConsoleItem::InputType)
+        removeRow(m_rootItem->childCount() - 1);
+}
+
+int QmlConsoleItemModel::sizeOfFile(const QFont &font)
+{
+    int lastReadOnlyRow = m_rootItem->childCount();
+    if (m_hasEditableRow)
+        lastReadOnlyRow -= 2;
+    else
+        lastReadOnlyRow -= 1;
+    if (lastReadOnlyRow < 0)
+        return 0;
+    QString filename = m_rootItem->child(lastReadOnlyRow)->file;
+    const int pos = filename.lastIndexOf(QLatin1Char('/'));
+    if (pos != -1)
+        filename = filename.mid(pos + 1);
+
+    QFontMetrics fm(font);
+    m_maxSizeOfFileName = qMax(m_maxSizeOfFileName, fm.width(filename));
+
+    return m_maxSizeOfFileName;
+}
+
+int QmlConsoleItemModel::sizeOfLineNumber(const QFont &font)
+{
+    QFontMetrics fm(font);
+    return fm.width(QLatin1String("88888"));
+}
+
+QVariant QmlConsoleItemModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid())
+        return QVariant();
+
+    QmlConsoleItem *item = getItem(index);
+
+    if (role == Qt::DisplayRole )
+        return item->text();
+    else if (role == QmlConsoleItemModel::TypeRole)
+        return int(item->itemType);
+    else if (role == QmlConsoleItemModel::FileRole)
+        return item->file;
+    else if (role == QmlConsoleItemModel::LineRole)
+        return item->line;
+    else
+        return QVariant();
+}
+
+QModelIndex QmlConsoleItemModel::index(int row, int column, const QModelIndex &parent) const
+{
+    if (parent.isValid() && parent.column() != 0)
+        return QModelIndex();
+
+    if (column > 0)
+        return QModelIndex();
+
+    QmlConsoleItem *parentItem = getItem(parent);
+
+    QmlConsoleItem *childItem = parentItem->child(row);
+    if (childItem)
+        return createIndex(row, column, childItem);
+    else
+        return QModelIndex();
+}
+
+QModelIndex QmlConsoleItemModel::parent(const QModelIndex &index) const
+{
+    if (!index.isValid())
+        return QModelIndex();
+
+    QmlConsoleItem *childItem = getItem(index);
+    QmlConsoleItem *parentItem = childItem->parent();
+
+    if (parentItem == m_rootItem)
+        return QModelIndex();
+
+    if (!parentItem)
+        return QModelIndex();
+    return createIndex(parentItem->childNumber(), 0, parentItem);
+}
+
+int QmlConsoleItemModel::rowCount(const QModelIndex &parent) const
+{
+    QmlConsoleItem *parentItem = getItem(parent);
+
+    return parentItem->childCount();
+}
+
+int QmlConsoleItemModel::columnCount(const QModelIndex & /* parent */) const
+{
+    return 1;
+}
+
+Qt::ItemFlags QmlConsoleItemModel::flags(const QModelIndex &index) const
+{
+    if (!index.isValid())
+        return 0;
+
+    QmlConsoleItem *item = getItem(index);
+    if (m_hasEditableRow && item->parent() == m_rootItem
+            && index.row() == m_rootItem->childCount() - 1)
+        return Qt::ItemIsEditable | Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+    return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+}
+
+bool QmlConsoleItemModel::setData(const QModelIndex &index, const QVariant &value, int role)
+{
+    QmlConsoleItem *item = getItem(index);
+    bool result = false;
+    if (role == Qt::DisplayRole) {
+        item->setText(value.toString());
+        result = true;
+    } else if (role == QmlConsoleItemModel::TypeRole) {
+        item->itemType = (QmlConsoleItem::ItemType)value.toInt();
+        result = true;
+    } else if (role == QmlConsoleItemModel::FileRole) {
+        item->file = value.toString();
+        result = true;
+    } else if (role == QmlConsoleItemModel::LineRole) {
+        item->line = value.toInt();
+        result = true;
+    }
+
+    if (result)
+        emit dataChanged(index, index);
+
+    return result;
+}
+
+bool QmlConsoleItemModel::insertRows(int position, int rows, const QModelIndex &parent)
+{
+    QmlConsoleItem *parentItem = getItem(parent);
+    bool success;
+
+    beginInsertRows(parent, position, position + rows - 1);
+    success = parentItem->insertChildren(position, rows);
+    endInsertRows();
+
+    return success;
+}
+
+bool QmlConsoleItemModel::removeRows(int position, int rows, const QModelIndex &parent)
+{
+    QmlConsoleItem *parentItem = getItem(parent);
+    bool success = true;
+
+    beginRemoveRows(parent, position, position + rows - 1);
+    success = parentItem->removeChildren(position, rows);
+    endRemoveRows();
+
+    return success;
+}
+
+QmlConsoleItem *QmlConsoleItemModel::getItem(const QModelIndex &index) const
+{
+    if (index.isValid()) {
+        QmlConsoleItem *item = static_cast<QmlConsoleItem*>(index.internalPointer());
+        if (item)
+            return item;
+    }
+    return m_rootItem;
+}
+
+} // Internal
+} // QmlJSTools