1 files changed, 384 insertions, 0 deletions
diff --git a/src/assistant/tools/assistant/helpviewer_qtb.cpp b/src/assistant/tools/assistant/helpviewer_qtb.cpp
new file mode 100644
index 000000000..0a6325cb5
--- /dev/null
+++ b/src/assistant/tools/assistant/helpviewer_qtb.cpp
@@ -0,0 +1,384 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Assistant 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 "helpviewer.h"
+
+#include "globalactions.h"
+#include "helpenginewrapper.h"
+#include "helpviewer_p.h"
+#include "openpagesmanager.h"
+#include "tracer.h"
+
+#include <QtCore/QStringBuilder>
+
+#include <QtGui/QContextMenuEvent>
+#include <QtGui/QMenu>
+#include <QtGui/QClipboard>
+#include <QtGui/QApplication>
+
+QT_BEGIN_NAMESPACE
+
+HelpViewer::HelpViewer(qreal zoom, QWidget *parent)
+    : QTextBrowser(parent)
+    , d(new HelpViewerPrivate(zoom))
+{
+    TRACE_OBJ
+    QPalette p = palette();
+    p.setColor(QPalette::Inactive, QPalette::Highlight,
+        p.color(QPalette::Active, QPalette::Highlight));
+    p.setColor(QPalette::Inactive, QPalette::HighlightedText,
+        p.color(QPalette::Active, QPalette::HighlightedText));
+    setPalette(p);
+
+    installEventFilter(this);
+    document()->setDocumentMargin(8);
+
+    QFont font = viewerFont();
+    font.setPointSize(int(font.pointSize() + zoom));
+    setViewerFont(font);
+
+    connect(this, SIGNAL(sourceChanged(QUrl)), this, SIGNAL(titleChanged()));
+    connect(this, SIGNAL(loadFinished(bool)), this, SLOT(setLoadFinished(bool)));
+}
+
+QFont HelpViewer::viewerFont() const
+{
+    TRACE_OBJ
+    if (HelpEngineWrapper::instance().usesBrowserFont())
+        return HelpEngineWrapper::instance().browserFont();
+    return qApp->font();
+}
+
+void HelpViewer::setViewerFont(const QFont &newFont)
+{
+    TRACE_OBJ
+    if (font() != newFont) {
+        d->forceFont = true;
+        setFont(newFont);
+        d->forceFont = false;
+    }
+}
+
+void HelpViewer::scaleUp()
+{
+    TRACE_OBJ
+    if (d->zoomCount < 10) {
+        d->zoomCount++;
+        d->forceFont = true;
+        zoomIn();
+        d->forceFont = false;
+    }
+}
+
+void HelpViewer::scaleDown()
+{
+    TRACE_OBJ
+    if (d->zoomCount > -5) {
+        d->zoomCount--;
+        d->forceFont = true;
+        zoomOut();
+        d->forceFont = false;
+    }
+}
+
+void HelpViewer::resetScale()
+{
+    TRACE_OBJ
+    if (d->zoomCount != 0) {
+        d->forceFont = true;
+        zoomOut(d->zoomCount);
+        d->forceFont = false;
+    }
+    d->zoomCount = 0;
+}
+
+qreal HelpViewer::scale() const
+{
+    TRACE_OBJ
+    return d->zoomCount;
+}
+
+QString HelpViewer::title() const
+{
+    TRACE_OBJ
+    return documentTitle();
+}
+
+void HelpViewer::setTitle(const QString &title)
+{
+    TRACE_OBJ
+    setDocumentTitle(title);
+}
+
+QUrl HelpViewer::source() const
+{
+    TRACE_OBJ
+    return QTextBrowser::source();
+}
+
+void HelpViewer::setSource(const QUrl &url)
+{
+    TRACE_OBJ
+    if (launchWithExternalApp(url))
+        return;
+
+    emit loadStarted();
+    QString string = url.toString();
+    const HelpEngineWrapper &engine = HelpEngineWrapper::instance();
+    const QUrl &resolvedUrl = (string == QLatin1String("help") ? LocalHelpFile :
+        engine.findFile(string));
+    QTextBrowser::setSource(resolvedUrl);
+    if (!url.isValid()) {
+        setHtml(string == QLatin1String("about:blank") ? AboutBlank
+            : PageNotFoundMessage.arg(url.toString()));
+    }
+    emit loadFinished(true);
+}
+
+QString HelpViewer::selectedText() const
+{
+    TRACE_OBJ
+    return textCursor().selectedText();
+}
+
+bool HelpViewer::isForwardAvailable() const
+{
+    TRACE_OBJ
+    return QTextBrowser::isForwardAvailable();
+}
+
+bool HelpViewer::isBackwardAvailable() const
+{
+    TRACE_OBJ
+    return QTextBrowser::isBackwardAvailable();
+}
+
+bool HelpViewer::findText(const QString &text, FindFlags flags, bool incremental,
+    bool fromSearch)
+{
+    TRACE_OBJ
+    QTextDocument *doc = document();
+    QTextCursor cursor = textCursor();
+    if (!doc || cursor.isNull())
+        return false;
+
+    const int position = cursor.selectionStart();
+    if (incremental)
+        cursor.setPosition(position);
+
+    QTextDocument::FindFlags textDocFlags;
+    if (flags & HelpViewer::FindBackward)
+        textDocFlags |= QTextDocument::FindBackward;
+    if (flags & HelpViewer::FindCaseSensitively)
+        textDocFlags |= QTextDocument::FindCaseSensitively;
+
+    QTextCursor found = doc->find(text, cursor, textDocFlags);
+    if (found.isNull()) {
+        if ((flags & HelpViewer::FindBackward) == 0)
+            cursor.movePosition(QTextCursor::Start);
+        else
+            cursor.movePosition(QTextCursor::End);
+        found = doc->find(text, cursor, textDocFlags);
+    }
+
+    if (fromSearch) {
+        cursor.beginEditBlock();
+        viewport()->setUpdatesEnabled(false);
+
+        QTextCharFormat marker;
+        marker.setForeground(Qt::red);
+        cursor.movePosition(QTextCursor::Start);
+        setTextCursor(cursor);
+
+        while (find(text)) {
+            QTextCursor hit = textCursor();
+            hit.mergeCharFormat(marker);
+        }
+
+        viewport()->setUpdatesEnabled(true);
+        cursor.endEditBlock();
+    }
+
+    bool cursorIsNull = found.isNull();
+    if (cursorIsNull) {
+        found = textCursor();
+        found.setPosition(position);
+    }
+    setTextCursor(found);
+    return !cursorIsNull;
+}
+
+// -- public slots
+
+void HelpViewer::copy()
+{
+    TRACE_OBJ
+    QTextBrowser::copy();
+}
+
+void HelpViewer::forward()
+{
+    TRACE_OBJ
+    QTextBrowser::forward();
+}
+
+void HelpViewer::backward()
+{
+    TRACE_OBJ
+    QTextBrowser::backward();
+}
+
+// -- protected
+
+void HelpViewer::keyPressEvent(QKeyEvent *e)
+{
+    TRACE_OBJ
+    if ((e->key() == Qt::Key_Home && e->modifiers() != Qt::NoModifier)
+        || (e->key() == Qt::Key_End && e->modifiers() != Qt::NoModifier)) {
+        QKeyEvent* event = new QKeyEvent(e->type(), e->key(), Qt::NoModifier,
+            e->text(), e->isAutoRepeat(), e->count());
+        e = event;
+    }
+    QTextBrowser::keyPressEvent(e);
+}
+
+
+void HelpViewer::wheelEvent(QWheelEvent *e)
+{
+    TRACE_OBJ
+    if (e->modifiers() == Qt::ControlModifier) {
+        e->accept();
+        e->delta() > 0 ? scaleUp() : scaleDown();
+    } else {
+        QTextBrowser::wheelEvent(e);
+    }
+}
+
+void HelpViewer::mousePressEvent(QMouseEvent *e)
+{
+    TRACE_OBJ
+#ifdef Q_OS_LINUX
+    if (handleForwardBackwardMouseButtons(e))
+        return;
+#endif
+
+    QTextBrowser::mousePressEvent(e);
+}
+
+void HelpViewer::mouseReleaseEvent(QMouseEvent *e)
+{
+    TRACE_OBJ
+#ifndef Q_OS_LINUX
+    if (handleForwardBackwardMouseButtons(e))
+        return;
+#endif
+
+    bool controlPressed = e->modifiers() & Qt::ControlModifier;
+    if ((controlPressed && d->hasAnchorAt(this, e->pos())) ||
+        (e->button() == Qt::MidButton && d->hasAnchorAt(this, e->pos()))) {
+        d->openLinkInNewPage();
+        return;
+    }
+
+    QTextBrowser::mouseReleaseEvent(e);
+}
+
+// -- private slots
+
+void HelpViewer::actionChanged()
+{
+    // stub
+    TRACE_OBJ
+}
+
+// -- private
+
+bool HelpViewer::eventFilter(QObject *obj, QEvent *event)
+{
+    TRACE_OBJ
+    if (event->type() == QEvent::FontChange && !d->forceFont)
+        return true;
+    return QTextBrowser::eventFilter(obj, event);
+}
+
+void HelpViewer::contextMenuEvent(QContextMenuEvent *event)
+{
+    TRACE_OBJ
+
+    QMenu menu(QString(), 0);
+    QUrl link;
+    QAction *copyAnchorAction = 0;
+    if (d->hasAnchorAt(this, event->pos())) {
+        link = anchorAt(event->pos());
+        if (link.isRelative())
+            link = source().resolved(link);
+        menu.addAction(tr("Open Link"), d, SLOT(openLink()));
+        menu.addAction(tr("Open Link in New Tab\tCtrl+LMB"), d, SLOT(openLinkInNewPage()));
+
+        if (!link.isEmpty() && link.isValid())
+            copyAnchorAction = menu.addAction(tr("Copy &Link Location"));
+    } else if (!selectedText().isEmpty()) {
+        menu.addAction(tr("Copy"), this, SLOT(copy()));
+    } else {
+        menu.addAction(tr("Reload"), this, SLOT(reload()));
+    }
+
+    if (copyAnchorAction == menu.exec(event->globalPos()))
+        QApplication::clipboard()->setText(link.toString());
+}
+
+QVariant HelpViewer::loadResource(int type, const QUrl &name)
+{
+    TRACE_OBJ
+    QByteArray ba;
+    if (type < 4) {
+        ba = HelpEngineWrapper::instance().fileData(name);
+        if (name.toString().endsWith(QLatin1String(".svg"), Qt::CaseInsensitive)) {
+            QImage image;
+            image.loadFromData(ba, "svg");
+            if (!image.isNull())
+                return image;
+        }
+    }
+    return ba;
+}
+
+QT_END_NAMESPACE