1 files changed, 378 insertions, 0 deletions
diff --git a/src/assistant/tools/assistant/openpagesmanager.cpp b/src/assistant/tools/assistant/openpagesmanager.cpp
new file mode 100644
index 000000000..272d9e242
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+++ b/src/assistant/tools/assistant/openpagesmanager.cpp
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+/****************************************************************************
+**
+** 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 Assistant 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 "openpagesmanager.h"
+
+#include "centralwidget.h"
+#include "helpenginewrapper.h"
+#include "helpviewer.h"
+#include "openpagesmodel.h"
+#include "openpagesswitcher.h"
+#include "openpageswidget.h"
+#include "tracer.h"
+#include "../shared/collectionconfiguration.h"
+
+#include <QtGui/QApplication>
+#include <QtGui/QTreeView>
+
+QT_BEGIN_NAMESPACE
+
+OpenPagesManager *OpenPagesManager::m_instance = 0;
+
+OpenPagesManager *OpenPagesManager::createInstance(QObject *parent,
+                      bool defaultCollection, const QUrl &cmdLineUrl)
+{
+    TRACE_OBJ
+    Q_ASSERT(!m_instance);
+    m_instance = new OpenPagesManager(parent, defaultCollection, cmdLineUrl);
+    return m_instance;
+}
+
+OpenPagesManager *OpenPagesManager::instance()
+{
+    TRACE_OBJ
+    Q_ASSERT(m_instance);
+    return m_instance;
+}
+
+OpenPagesManager::OpenPagesManager(QObject *parent, bool defaultCollection,
+                                   const QUrl &cmdLineUrl)
+    : QObject(parent)
+    , m_model(new OpenPagesModel(this))
+    , m_openPagesWidget(0)
+    , m_openPagesSwitcher(0)
+{
+    TRACE_OBJ
+    m_openPagesWidget = new OpenPagesWidget(m_model);
+    m_openPagesWidget->setFrameStyle(QFrame::NoFrame);
+    connect(m_openPagesWidget, SIGNAL(setCurrentPage(QModelIndex)), this,
+            SLOT(setCurrentPage(QModelIndex)));
+    connect(m_openPagesWidget, SIGNAL(closePage(QModelIndex)), this,
+            SLOT(closePage(QModelIndex)));
+    connect(m_openPagesWidget, SIGNAL(closePagesExcept(QModelIndex)), this,
+            SLOT(closePagesExcept(QModelIndex)));
+
+    m_openPagesSwitcher = new OpenPagesSwitcher(m_model);
+    connect(m_openPagesSwitcher, SIGNAL(closePage(QModelIndex)), this,
+        SLOT(closePage(QModelIndex)));
+    connect(m_openPagesSwitcher, SIGNAL(setCurrentPage(QModelIndex)), this,
+        SLOT(setCurrentPage(QModelIndex)));
+
+    setupInitialPages(defaultCollection, cmdLineUrl);
+}
+
+OpenPagesManager ::~OpenPagesManager()
+{
+    TRACE_OBJ
+    m_instance = 0;
+    delete m_openPagesSwitcher;
+}
+
+int OpenPagesManager::pageCount() const
+{
+    TRACE_OBJ
+    return m_model->rowCount();
+}
+
+void OpenPagesManager::setupInitialPages(bool defaultCollection,
+            const QUrl &cmdLineUrl)
+{
+    TRACE_OBJ
+    if (cmdLineUrl.isValid()) {
+        createPage(cmdLineUrl);
+        return;
+    }
+
+    HelpEngineWrapper &helpEngine = HelpEngineWrapper::instance();
+    int initialPage = 0;
+    switch (helpEngine.startOption()) {
+    case ShowHomePage:
+        m_model->addPage(helpEngine.homePage());
+        break;
+    case ShowBlankPage:
+        m_model->addPage(QUrl(QLatin1String("about:blank")));
+        break;
+    case ShowLastPages: {
+        const QStringList &lastShownPageList = helpEngine.lastShownPages();
+        const int pageCount = lastShownPageList.count();
+        if (pageCount == 0) {
+            if (defaultCollection)
+                m_model->addPage(QUrl(QLatin1String("help")));
+            else
+                m_model->addPage(QUrl(QLatin1String("about:blank")));
+        } else {
+            QStringList zoomFactors = helpEngine.lastZoomFactors();
+            while (zoomFactors.count() < pageCount)
+                zoomFactors.append(CollectionConfiguration::DefaultZoomFactor);
+            initialPage = helpEngine.lastTabPage();
+            if (initialPage >= pageCount) {
+                qWarning("Initial page set to %d, maximum possible value is %d",
+                         initialPage, pageCount - 1);
+                initialPage = 0;
+            }
+            for (int curPage = 0; curPage < pageCount; ++curPage) {
+                const QString &curFile = lastShownPageList.at(curPage);
+                if (helpEngine.findFile(curFile).isValid()
+                    || curFile == QLatin1String("about:blank")) {
+                    m_model->addPage(curFile, zoomFactors.at(curPage).toFloat());
+                } else if (curPage <= initialPage && initialPage > 0)
+                    --initialPage;
+            }
+        }
+        break;
+    }
+    default:
+        Q_ASSERT(!"Unhandled option");
+    }
+
+    if (m_model->rowCount() == 0)
+        m_model->addPage(helpEngine.homePage());
+    for (int i = 0; i < m_model->rowCount(); ++i)
+        CentralWidget::instance()->addPage(m_model->pageAt(i));
+    setCurrentPage((initialPage >= m_model->rowCount())
+        ? m_model->rowCount() - 1 : initialPage);
+    m_openPagesSwitcher->selectCurrentPage();
+}
+
+HelpViewer *OpenPagesManager::createPage()
+{
+    TRACE_OBJ
+    return createPage(QUrl(QLatin1String("about:blank")));
+}
+
+void OpenPagesManager::closeCurrentPage()
+{
+    TRACE_OBJ
+    Q_ASSERT(m_model->rowCount() > 1);
+    const QModelIndexList selectedIndexes
+        = m_openPagesWidget->selectionModel()->selectedRows();
+    if (selectedIndexes.isEmpty())
+        return;
+    Q_ASSERT(selectedIndexes.count() == 1);
+    removePage(selectedIndexes.first().row());
+}
+
+HelpViewer *OpenPagesManager::createPage(const QUrl &url, bool fromSearch)
+{
+    TRACE_OBJ
+    if (HelpViewer::launchWithExternalApp(url))
+        return 0;
+
+    m_model->addPage(url);
+    const int index = m_model->rowCount() - 1;
+    HelpViewer * const page = m_model->pageAt(index);
+    CentralWidget::instance()->addPage(page, fromSearch);
+    setCurrentPage(index);
+    return page;
+}
+
+HelpViewer *OpenPagesManager::createNewPageFromSearch(const QUrl &url)
+{
+    TRACE_OBJ
+    return createPage(url, true);
+}
+
+void OpenPagesManager::closePage(HelpViewer *viewer)
+{
+    TRACE_OBJ
+    for (int i = 0; i < m_model->rowCount(); ++i) {
+        if (m_model->pageAt(i) == viewer) {
+            removePage(i);
+            break;
+        }
+    }
+}
+
+void OpenPagesManager::closePage(const QModelIndex &index)
+{
+    TRACE_OBJ
+    if (index.isValid())
+        removePage(index.row());
+}
+
+void OpenPagesManager::closePages(const QString &nameSpace)
+{
+    TRACE_OBJ
+    closeOrReloadPages(nameSpace, false);
+}
+
+void OpenPagesManager::reloadPages(const QString &nameSpace)
+{
+    TRACE_OBJ
+    closeOrReloadPages(nameSpace, true);
+    m_openPagesWidget->selectCurrentPage();
+}
+
+void OpenPagesManager::closeOrReloadPages(const QString &nameSpace, bool tryReload)
+{
+    TRACE_OBJ
+    for (int i = m_model->rowCount() - 1; i >= 0; --i) {
+        HelpViewer *page = m_model->pageAt(i);
+        if (page->source().host() != nameSpace)
+            continue;
+        if (tryReload  && HelpEngineWrapper::instance().findFile(page->source()).isValid())
+            page->reload();
+        else if (m_model->rowCount() == 1)
+            page->setSource(QUrl(QLatin1String("about:blank")));
+        else
+            removePage(i);
+    }
+}
+
+bool OpenPagesManager::pagesOpenForNamespace(const QString &nameSpace) const
+{
+    TRACE_OBJ
+    for (int i = 0; i < m_model->rowCount(); ++i)
+        if (m_model->pageAt(i)->source().host() == nameSpace)
+            return true;
+    return false;
+}
+
+void OpenPagesManager::setCurrentPage(const QModelIndex &index)
+{
+    TRACE_OBJ
+    if (index.isValid())
+        setCurrentPage(index.row());
+}
+
+void OpenPagesManager::setCurrentPage(int index)
+{
+    TRACE_OBJ
+    setCurrentPage(m_model->pageAt(index));
+}
+
+void OpenPagesManager::setCurrentPage(HelpViewer *page)
+{
+    TRACE_OBJ
+    CentralWidget::instance()->setCurrentPage(page);
+    m_openPagesWidget->selectCurrentPage();
+}
+
+void OpenPagesManager::removePage(int index)
+{
+    TRACE_OBJ
+    CentralWidget::instance()->removePage(index);
+    m_model->removePage(index);
+    m_openPagesWidget->selectCurrentPage();
+}
+
+
+void OpenPagesManager::closePagesExcept(const QModelIndex &index)
+{
+    TRACE_OBJ
+    if (!index.isValid())
+        return;
+
+    int i = 0;
+    HelpViewer *viewer = m_model->pageAt(index.row());
+    while (m_model->rowCount() > 1) {
+        if (m_model->pageAt(i) != viewer)
+            removePage(i);
+        else
+            ++i;
+    }
+}
+
+QAbstractItemView *OpenPagesManager::openPagesWidget() const
+{
+    TRACE_OBJ
+    return m_openPagesWidget;
+}
+
+void OpenPagesManager::nextPage()
+{
+    TRACE_OBJ
+    nextOrPreviousPage(1);
+}
+
+void OpenPagesManager::nextPageWithSwitcher()
+{
+    TRACE_OBJ
+    if (!m_openPagesSwitcher->isVisible()) {
+        m_openPagesSwitcher->selectCurrentPage();
+        m_openPagesSwitcher->gotoNextPage();
+        showSwitcherOrSelectPage();
+    } else {
+        m_openPagesSwitcher->gotoNextPage();
+    }
+}
+
+void OpenPagesManager::previousPage()
+{
+    TRACE_OBJ
+    nextOrPreviousPage(-1);
+}
+
+void OpenPagesManager::previousPageWithSwitcher()
+{
+    TRACE_OBJ
+    if (!m_openPagesSwitcher->isVisible()) {
+        m_openPagesSwitcher->selectCurrentPage();
+        m_openPagesSwitcher->gotoPreviousPage();
+        showSwitcherOrSelectPage();
+    } else {
+        m_openPagesSwitcher->gotoPreviousPage();
+    }
+}
+
+void OpenPagesManager::nextOrPreviousPage(int offset)
+{
+    TRACE_OBJ
+    setCurrentPage((CentralWidget::instance()->currentIndex() + offset
+        + m_model->rowCount()) % m_model->rowCount());
+}
+
+void OpenPagesManager::showSwitcherOrSelectPage() const
+{
+    TRACE_OBJ
+    if (QApplication::keyboardModifiers() != Qt::NoModifier) {
+        const int width = CentralWidget::instance()->width();
+        const int height = CentralWidget::instance()->height();
+        const QPoint p(CentralWidget::instance()->mapToGlobal(QPoint(0, 0)));
+        m_openPagesSwitcher->move((width - m_openPagesSwitcher->width()) / 2 + p.x(),
+            (height - m_openPagesSwitcher->height()) / 2 + p.y());
+        m_openPagesSwitcher->setVisible(true);
+    } else {
+        m_openPagesSwitcher->selectAndHide();
+    }
+}
+
+QT_END_NAMESPACE