diff -r 000000000000 -r 1918ee327afb src/scripttools/debugging/qscriptdebuggerlocalswidget.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/scripttools/debugging/qscriptdebuggerlocalswidget.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,421 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtSCriptTools module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qscriptdebuggerlocalswidget_p.h"
+#include "qscriptdebuggerlocalswidgetinterface_p_p.h"
+#include "qscriptdebuggerlocalsmodel_p.h"
+#include "qscriptcompletionproviderinterface_p.h"
+#include "qscriptcompletiontaskinterface_p.h"
+
+#include <QtCore/qdebug.h>
+#include <QtGui/qheaderview.h>
+#include <QtGui/qcompleter.h>
+#include <QtGui/qstringlistmodel.h>
+#include <QtGui/qtreeview.h>
+#include <QtGui/qboxlayout.h>
+#include <QtGui/qsortfilterproxymodel.h>
+#include <QtGui/qlineedit.h>
+#include <QtGui/qstyleditemdelegate.h>
+#include <QtGui/qevent.h>
+#include <QtGui/qmessagebox.h>
+#include <QtScript/qscriptengine.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace {
+
+class CustomProxyModel : public QSortFilterProxyModel
+{
+public:
+    CustomProxyModel(QObject *parent = 0)
+        : QSortFilterProxyModel(parent) {}
+
+    bool hasChildren(const QModelIndex &parent) const
+    {
+        QModelIndex sourceParent = mapToSource(parent);
+        if (parent.isValid() && !sourceParent.isValid())
+            return false;
+        return sourceModel()->hasChildren(sourceParent);
+    }
+};
+
+} // namespace
+
+class QScriptDebuggerLocalsWidgetPrivate
+    : public QScriptDebuggerLocalsWidgetInterfacePrivate
+{
+    Q_DECLARE_PUBLIC(QScriptDebuggerLocalsWidget)
+public:
+    QScriptDebuggerLocalsWidgetPrivate();
+    ~QScriptDebuggerLocalsWidgetPrivate();
+
+    void complete(QLineEdit *le);
+
+    // private slots
+    void _q_onCompletionTaskFinished();
+    void _q_insertCompletion(const QString &text);
+    void _q_expandIndex(const QModelIndex &index);
+
+    QTreeView *view;
+    QPointer<QLineEdit> completingEditor;
+    QCompleter *completer;
+    CustomProxyModel *proxy;
+};
+
+QScriptDebuggerLocalsWidgetPrivate::QScriptDebuggerLocalsWidgetPrivate()
+{
+    completingEditor = 0;
+    completer = 0;
+    proxy = 0;
+}
+
+QScriptDebuggerLocalsWidgetPrivate::~QScriptDebuggerLocalsWidgetPrivate()
+{
+}
+
+void QScriptDebuggerLocalsWidgetPrivate::complete(QLineEdit *le)
+{
+    Q_Q(QScriptDebuggerLocalsWidget);
+    QScriptCompletionTaskInterface *task = 0;
+    // ### need to pass the current frame #
+    task = completionProvider->createCompletionTask(
+        le->text(), le->cursorPosition(),
+        q->localsModel()->frameIndex(), /*options=*/0);
+    QObject::connect(task, SIGNAL(finished()),
+                     q, SLOT(_q_onCompletionTaskFinished()));
+    completingEditor = le;
+    task->start();
+}
+
+void QScriptDebuggerLocalsWidgetPrivate::_q_onCompletionTaskFinished()
+{
+    Q_Q(QScriptDebuggerLocalsWidget);
+    QScriptCompletionTaskInterface *task = 0;
+    task = qobject_cast<QScriptCompletionTaskInterface*>(q_func()->sender());
+    if (!completingEditor) {
+        task->deleteLater();
+        return;
+    }
+
+    if (task->resultCount() == 1) {
+        // do the completion right away
+        QString completion = task->resultAt(0);
+        completion.append(task->appendix());
+        QString tmp = completingEditor->text();
+        tmp.remove(task->position(), task->length());
+        tmp.insert(task->position(), completion);
+        completingEditor->setText(tmp);
+        completingEditor = 0;
+    } else if (task->resultCount() > 1) {
+        // popup completion
+        if (!completer) {
+            completer = new QCompleter(q);
+            completer->setCompletionMode(QCompleter::PopupCompletion);
+            completer->setCaseSensitivity(Qt::CaseSensitive);
+            completer->setWrapAround(false);
+            QObject::connect(completer, SIGNAL(activated(QString)),
+                             q, SLOT(_q_insertCompletion(QString)));
+        }
+        QStringListModel *model = qobject_cast<QStringListModel*>(completer->model());
+        if (!model) {
+            model = new QStringListModel(q);
+            completer->setModel(model);
+        }
+        QStringList strings;
+        for (int i = 0; i < task->resultCount(); ++i)
+            strings.append(task->resultAt(i));
+        model->setStringList(strings);
+        QString prefix = completingEditor->text().mid(task->position(), task->length());
+        completer->setCompletionPrefix(prefix);
+        completingEditor->setCompleter(completer);
+        // we want to handle the insertion ourselves
+        QObject::disconnect(completer, 0, completingEditor, 0);
+        completer->complete();
+    }
+    task->deleteLater();
+}
+
+void QScriptDebuggerLocalsWidgetPrivate::_q_insertCompletion(const QString &text)
+{
+    Q_ASSERT(completingEditor != 0);
+    QString tmp = completingEditor->text();
+    tmp.insert(completingEditor->cursorPosition(), text.mid(completer->completionPrefix().length()));
+    completingEditor->setText(tmp);
+    completingEditor = 0;
+}
+
+void QScriptDebuggerLocalsWidgetPrivate::_q_expandIndex(const QModelIndex &index)
+{
+    view->expand(proxy->mapFromSource(index));
+}
+
+class QScriptDebuggerLocalsItemDelegate
+    : public QStyledItemDelegate
+{
+    Q_OBJECT
+public:
+    QScriptDebuggerLocalsItemDelegate(QObject *parent = 0);
+
+    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const;
+    void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const;
+    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
+
+    bool eventFilter(QObject *watched, QEvent *event);
+
+private Q_SLOTS:
+    void validateInput(const QString &text)
+    {
+        QWidget *editor = qobject_cast<QWidget*>(sender());
+        QPalette pal = editor->palette();
+        QColor col;
+        bool ok = (QScriptEngine::checkSyntax(text).state() == QScriptSyntaxCheckResult::Valid);
+        if (ok) {
+            col = Qt::white;
+        } else {
+            QScriptSyntaxCheckResult result = QScriptEngine::checkSyntax(
+                text + QLatin1Char('\n'));
+            if (result.state() == QScriptSyntaxCheckResult::Intermediate)
+                col = QColor(255, 240, 192);
+            else
+                col = QColor(255, 102, 102);
+        }
+        pal.setColor(QPalette::Active, QPalette::Base, col);
+        editor->setPalette(pal);
+    }
+
+private:
+    static const QWidget *widget(const QStyleOptionViewItem &option)
+    {
+        if (const QStyleOptionViewItemV3 *v3 = qstyleoption_cast<const QStyleOptionViewItemV3 *>(&option))
+            return v3->widget;
+        return 0;
+    }
+};
+
+QScriptDebuggerLocalsItemDelegate::QScriptDebuggerLocalsItemDelegate(
+    QObject *parent)
+    : QStyledItemDelegate(parent)
+{
+}
+
+QWidget *QScriptDebuggerLocalsItemDelegate::createEditor(
+    QWidget *parent, const QStyleOptionViewItem &option,
+    const QModelIndex &index) const
+{
+    QWidget *editor = QStyledItemDelegate::createEditor(parent, option, index);
+    if (index.column() == 1) {
+        // value
+        QLineEdit *le = qobject_cast<QLineEdit*>(editor);
+        if (le) {
+            QObject::connect(le, SIGNAL(textEdited(QString)),
+                             this, SLOT(validateInput(QString)));
+        }
+    }
+    return editor;
+}
+
+bool QScriptDebuggerLocalsItemDelegate::eventFilter(QObject *watched, QEvent *event)
+{
+    QLineEdit *le = qobject_cast<QLineEdit*>(watched);
+    if (!le)
+        return QStyledItemDelegate::eventFilter(watched, event);
+
+    QScriptDebuggerLocalsWidget *localsWidget = qobject_cast<QScriptDebuggerLocalsWidget*>(parent());
+    Q_ASSERT(localsWidget != 0);
+    QScriptDebuggerLocalsWidgetPrivate *lvp =
+        reinterpret_cast<QScriptDebuggerLocalsWidgetPrivate*>(
+            QScriptDebuggerLocalsWidgetPrivate::get(localsWidget));
+
+    if ((event->type() == QEvent::FocusIn) && lvp->completingEditor) {
+        // because QLineEdit insists on being difficult...
+        return true;
+    }
+
+    if (event->type() != QEvent::KeyPress)
+        return QStyledItemDelegate::eventFilter(watched, event);
+    QKeyEvent *ke = static_cast<QKeyEvent*>(event);
+    if ((ke->key() == Qt::Key_Enter) || (ke->key() == Qt::Key_Return)) {
+        if (QScriptEngine::checkSyntax(le->text()).state() != QScriptSyntaxCheckResult::Valid) {
+            // ignore when script contains syntax error
+            return true;
+        }
+    }
+    if (ke->key() != Qt::Key_Tab)
+        return QStyledItemDelegate::eventFilter(watched, event);
+
+    // trigger completion
+    lvp->complete(le);
+    return true;
+}
+
+void QScriptDebuggerLocalsItemDelegate::setModelData(
+    QWidget *editor, QAbstractItemModel *model,
+    const QModelIndex &index) const
+{
+    if (index.column() == 1) {
+        // check that the syntax is OK
+        QString expression = qobject_cast<QLineEdit*>(editor)->text();
+        if (QScriptEngine::checkSyntax(expression).state() != QScriptSyntaxCheckResult::Valid)
+            return;
+    }
+    QStyledItemDelegate::setModelData(editor, model, index);
+}
+
+void QScriptDebuggerLocalsItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
+                                              const QModelIndex &index) const
+{
+    QStyledItemDelegate::paint(painter, option, index);
+#if 0
+    QModelIndex parent = index.parent();
+    if (parent.isValid()) {
+        QStyledItemDelegate::paint(painter, option, index);
+    } else {
+        // this is a top-level item.
+        const QTreeView *view = qobject_cast<const QTreeView*>(widget(option));
+        Q_ASSERT(view != 0);
+
+        QStyleOptionButton buttonOption;
+
+        buttonOption.state = option.state;
+#ifdef Q_WS_MAC
+        buttonOption.state |= QStyle::State_Raised;
+#endif
+        buttonOption.state &= ~QStyle::State_HasFocus;
+
+        buttonOption.rect = option.rect;
+        buttonOption.palette = option.palette;
+        buttonOption.features = QStyleOptionButton::None;
+        view->style()->drawControl(QStyle::CE_PushButton, &buttonOption, painter, view);
+
+        QStyleOption branchOption;
+        static const int i = 9; // ### hardcoded in qcommonstyle.cpp
+        QRect r = option.rect;
+        branchOption.rect = QRect(r.left() + i/2, r.top() + (r.height() - i)/2, i, i);
+        branchOption.palette = option.palette;
+        branchOption.state = QStyle::State_Children;
+
+        if (view->isExpanded(index))
+            branchOption.state |= QStyle::State_Open;
+
+        view->style()->drawPrimitive(QStyle::PE_IndicatorBranch, &branchOption, painter, view);
+
+        // draw text
+        QRect textrect = QRect(r.left() + i*2, r.top(), r.width() - ((5*i)/2), r.height());
+        QString text = elidedText(option.fontMetrics, textrect.width(), Qt::ElideMiddle, 
+            index.data(Qt::DisplayRole).toString());
+        view->style()->drawItemText(painter, textrect, Qt::AlignCenter,
+                                    option.palette, view->isEnabled(), text);
+    }
+#endif
+}
+
+QScriptDebuggerLocalsWidget::QScriptDebuggerLocalsWidget(QWidget *parent)
+    : QScriptDebuggerLocalsWidgetInterface(*new QScriptDebuggerLocalsWidgetPrivate, parent, 0)
+{
+    Q_D(QScriptDebuggerLocalsWidget);
+    d->view = new QTreeView();
+    d->view->setItemDelegate(new QScriptDebuggerLocalsItemDelegate(this));
+    d->view->setEditTriggers(QAbstractItemView::DoubleClicked);
+//    d->view->setEditTriggers(QAbstractItemView::NoEditTriggers);
+    d->view->setEditTriggers(QAbstractItemView::DoubleClicked | QAbstractItemView::SelectedClicked);
+    d->view->setAlternatingRowColors(true);
+    d->view->setSelectionBehavior(QAbstractItemView::SelectRows);
+    d->view->setSortingEnabled(true);
+    d->view->header()->setDefaultAlignment(Qt::AlignLeft);
+//    d->view->header()->setSortIndicatorShown(true);
+//    d->view->header()->setResizeMode(QHeaderView::ResizeToContents);
+
+    QVBoxLayout *vbox = new QVBoxLayout(this);
+    vbox->setMargin(0);
+    vbox->addWidget(d->view);
+}
+
+QScriptDebuggerLocalsWidget::~QScriptDebuggerLocalsWidget()
+{
+}
+
+/*!
+  \reimp
+*/
+QScriptDebuggerLocalsModel *QScriptDebuggerLocalsWidget::localsModel() const
+{
+    Q_D(const QScriptDebuggerLocalsWidget);
+    if (!d->proxy)
+        return 0;
+    return qobject_cast<QScriptDebuggerLocalsModel*>(d->proxy->sourceModel());
+}
+
+/*!
+  \reimp
+*/
+void QScriptDebuggerLocalsWidget::setLocalsModel(QScriptDebuggerLocalsModel *model)
+{
+    Q_D(QScriptDebuggerLocalsWidget);
+    if (localsModel()) {
+        QObject::disconnect(localsModel(), 0, d->view, 0);
+    }
+    if (model) {
+        QObject::connect(model, SIGNAL(scopeObjectAvailable(QModelIndex)),
+                         this, SLOT(_q_expandIndex(QModelIndex)));
+    }
+    if (!d->proxy) {
+        d->proxy = new CustomProxyModel(this);
+        d->view->sortByColumn(0, Qt::AscendingOrder);
+    }
+    d->proxy->setSourceModel(model);
+    d->view->setModel(d->proxy);
+}
+
+/*!
+  \reimp
+*/
+void QScriptDebuggerLocalsWidget::expand(const QModelIndex &index)
+{
+    Q_D(QScriptDebuggerLocalsWidget);
+    d->view->expand(index);
+    d->view->setFirstColumnSpanned(index.row(), QModelIndex(), true);
+}
+
+QT_END_NAMESPACE
+
+#include "qscriptdebuggerlocalswidget.moc"
+
+#include "moc_qscriptdebuggerlocalswidget_p.cpp"