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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#include "contentwindow.h"
#include "centralwidget.h"
#include "helpviewer.h"
#include "localhelpmanager.h"
#include "openpagesmanager.h"
#include <QtGui/QLayout>
#include <QtGui/QFocusEvent>
#include <QtGui/QMenu>
#include <QtHelp/QHelpEngine>
#include <QtHelp/QHelpContentWidget>
using namespace Help::Internal;
ContentWindow::ContentWindow()
: m_contentWidget(0)
, m_expandDepth(-2)
{
m_contentWidget = (&LocalHelpManager::helpEngine())->contentWidget();
m_contentWidget->installEventFilter(this);
m_contentWidget->viewport()->installEventFilter(this);
m_contentWidget->setContextMenuPolicy(Qt::CustomContextMenu);
setFocusProxy(m_contentWidget);
QVBoxLayout *layout = new QVBoxLayout(this);
layout->setMargin(0);
layout->addWidget(m_contentWidget);
connect(m_contentWidget, SIGNAL(customContextMenuRequested(QPoint)), this,
SLOT(showContextMenu(QPoint)));
connect(m_contentWidget, SIGNAL(linkActivated(QUrl)), this,
SIGNAL(linkActivated(QUrl)));
QHelpContentModel *contentModel =
qobject_cast<QHelpContentModel*>(m_contentWidget->model());
connect(contentModel, SIGNAL(contentsCreated()), this, SLOT(expandTOC()));
m_contentWidget->setFrameStyle(QFrame::NoFrame);
}
ContentWindow::~ContentWindow()
{
}
bool ContentWindow::syncToContent(const QUrl& url)
{
QModelIndex idx = m_contentWidget->indexOf(url);
if (!idx.isValid())
return false;
m_contentWidget->setCurrentIndex(idx);
return true;
}
void ContentWindow::expandTOC()
{
if (m_expandDepth > -2) {
expandToDepth(m_expandDepth);
m_expandDepth = -2;
}
}
void ContentWindow::expandToDepth(int depth)
{
m_expandDepth = depth;
if (depth == -1)
m_contentWidget->expandAll();
else
m_contentWidget->expandToDepth(depth);
}
bool ContentWindow::eventFilter(QObject *o, QEvent *e)
{
if (m_contentWidget && o == m_contentWidget->viewport()
&& e->type() == QEvent::MouseButtonRelease) {
QMouseEvent *me = static_cast<QMouseEvent*>(e);
QItemSelectionModel *sm = m_contentWidget->selectionModel();
if (!me || !sm)
return QWidget::eventFilter(o, e);
Qt::MouseButtons button = me->button();
const QModelIndex &index = m_contentWidget->indexAt(me->pos());
if (index.isValid() && sm->isSelected(index)) {
if ((button == Qt::LeftButton && (me->modifiers() & Qt::ControlModifier))
|| (button == Qt::MidButton)) {
QHelpContentModel *contentModel =
qobject_cast<QHelpContentModel*>(m_contentWidget->model());
if (contentModel) {
QHelpContentItem *itm = contentModel->contentItemAt(index);
if (itm && HelpViewer::canOpenPage(itm->url().path()))
OpenPagesManager::instance().createPage(itm->url());
}
} else if (button == Qt::LeftButton) {
itemClicked(index);
}
}
}
return QWidget::eventFilter(o, e);
}
void ContentWindow::showContextMenu(const QPoint &pos)
{
if (!m_contentWidget->indexAt(pos).isValid())
return;
QHelpContentModel *contentModel =
qobject_cast<QHelpContentModel*>(m_contentWidget->model());
QHelpContentItem *itm =
contentModel->contentItemAt(m_contentWidget->currentIndex());
QMenu menu;
QAction *curTab = menu.addAction(tr("Open Link"));
QAction *newTab = menu.addAction(tr("Open Link as New Page"));
if (!HelpViewer::canOpenPage(itm->url().path()))
newTab->setEnabled(false);
menu.move(m_contentWidget->mapToGlobal(pos));
QAction *action = menu.exec();
if (curTab == action)
emit linkActivated(itm->url());
else if (newTab == action)
OpenPagesManager::instance().createPage(itm->url());
}
void ContentWindow::itemClicked(const QModelIndex &index)
{
QHelpContentModel *contentModel =
qobject_cast<QHelpContentModel*>(m_contentWidget->model());
if (contentModel) {
if (QHelpContentItem *itm = contentModel->contentItemAt(index)) {
const QUrl &url = itm->url();
if (url != CentralWidget::instance()->currentHelpViewer()->source())
emit linkActivated(itm->url());
}
}
}
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