Long live Qt 4.5!

1 files changed, 247 insertions, 0 deletions

diff --git a/tools/assistant/compat/helpwindow.cpp b/tools/assistant/compat/helpwindow.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "helpwindow.h"
+#include "mainwindow.h"
+#include "tabbedbrowser.h"
+#include "helpdialog.h"
+#include "config.h"
+
+#include <QApplication>
+#include <QClipboard>
+#include <QUrl>
+#include <QMessageBox>
+#include <QDir>
+#include <QFile>
+#include <QProcess>
+#include <QAction>
+#include <QFileInfo>
+#include <QFont>
+#include <QtEvents>
+#include <QTextStream>
+#include <QTextCodec>
+#include <QStatusBar>
+#include <QTextCursor>
+#include <QTextObject>
+#include <QTextLayout>
+#include <QtDebug>
+#include <qdesktopservices.h>
+
+#include <QtGui/QClipboard>
+#include <QtGui/QApplication>
+
+#if defined(Q_OS_WIN32)
+#  include <windows.h>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+HelpWindow::HelpWindow(MainWindow *w, QWidget *parent)
+    : QTextBrowser(parent)
+    , mw(w)
+    , blockScroll(false)
+    , shiftPressed(false)
+    , newWindow(false)
+{
+    FontSettings settings = Config::configuration()->fontSettings();
+    setFont(settings.browserFont);
+
+    connect(this, SIGNAL(copyAvailable(bool)), w, SLOT(copyAvailable(bool)));
+}
+
+void HelpWindow::setSource(const QUrl &name)
+{
+    if (name.isValid()) {
+        if (name.scheme() == QLatin1String("http") || name.scheme() == QLatin1String("ftp") 
+            || name.scheme() == QLatin1String("mailto") || name.path().endsWith(QLatin1String("pdf"))) {
+            bool launched = QDesktopServices::openUrl(name);
+            if (!launched) {
+                QMessageBox::information(mw, tr("Help"),
+                             tr("Unable to launch web browser.\n"),
+                             tr("OK"));
+            }
+            return;
+        }
+
+        QFileInfo fi(name.toLocalFile());
+        if (name.scheme() == QLatin1String("file") && fi.exists()) {
+            if (newWindow || (shiftPressed && hasFocus())) {
+                shiftPressed = false;
+                mw->saveSettings();
+                MainWindow *nmw = new MainWindow;
+                nmw->move(mw->geometry().topLeft());
+                nmw->show();
+                
+                if (mw->isMaximized())
+                    nmw->showMaximized();
+                
+                nmw->setup();
+                nmw->showLink(name.toString());
+            } else {
+                QTextBrowser::setSource(name);
+                QTextBrowser::scrollToAnchor(name.fragment());
+            }
+            return;
+        }
+    }
+
+    mw->statusBar()->showMessage(tr("Failed to open link: '%1'").arg(name.toString()), 5000);
+    setHtml(tr("<div align=\"center\"><h1>The page could not be found</h1><br>"
+        "<h3>'%1'</h3></div>").arg(name.toString()));
+    mw->browsers()->updateTitle(tr("Error..."));
+}
+
+void HelpWindow::openLinkInNewWindow()
+{
+    if (lastAnchor.isEmpty())
+        return;
+    newWindow = true;
+    setSource(lastAnchor);
+    newWindow = false;
+}
+
+void HelpWindow::openLinkInNewWindow(const QString &link)
+{
+    lastAnchor = link;
+    openLinkInNewWindow();
+}
+
+void HelpWindow::openLinkInNewPage()
+{
+    if(lastAnchor.isEmpty())
+        return;
+    mw->browsers()->newTab(lastAnchor);
+    lastAnchor.clear();
+}
+
+void HelpWindow::openLinkInNewPage(const QString &link)
+{
+    lastAnchor = link;
+    openLinkInNewPage();
+}
+
+bool HelpWindow::hasAnchorAt(const QPoint& pos)
+{
+    lastAnchor = anchorAt(pos);
+    if (lastAnchor.isEmpty()) 
+        return false;
+    lastAnchor = source().resolved(lastAnchor).toString();
+    if (lastAnchor.at(0) == QLatin1Char('#')) {
+        QString src = source().toString();
+        int hsh = src.indexOf(QLatin1Char('#'));
+        lastAnchor = (hsh>=0 ? src.left(hsh) : src) + lastAnchor;
+    }
+    return true;
+}
+
+void HelpWindow::contextMenuEvent(QContextMenuEvent *e)
+{
+    QMenu menu(QLatin1String(""), 0);
+
+    QUrl link;
+    QAction *copyAnchorAction = 0;
+    if (hasAnchorAt(e->pos())) {
+        link = anchorAt(e->pos());
+        if (link.isRelative())            
+            link = source().resolved(link);
+        copyAnchorAction = menu.addAction(tr("Copy &Link Location"));
+        copyAnchorAction->setEnabled(!link.isEmpty() && link.isValid());
+
+        menu.addAction(tr("Open Link in New Tab"),
+                       this, SLOT(openLinkInNewPage()));
+        menu.addAction(tr("Open Link in New Window\tShift+LMB"),
+                       this, SLOT(openLinkInNewWindow()));
+    }
+    mw->setupPopupMenu(&menu);
+    QAction *action = menu.exec(e->globalPos());
+    if (action == copyAnchorAction)
+        QApplication::clipboard()->setText(link.toString());
+}
+
+void HelpWindow::mouseReleaseEvent(QMouseEvent *e)
+{
+    if (e->button() == Qt::XButton1) {
+        QTextBrowser::backward();
+        return;
+    } 
+    
+    if (e->button() == Qt::XButton2) {
+        QTextBrowser::forward();
+        return;
+    }
+
+    if (e->button() == Qt::MidButton && hasAnchorAt(e->pos())) {
+        openLinkInNewPage();
+        return;
+    }
+    QTextBrowser::mouseReleaseEvent(e);
+}
+
+void HelpWindow::blockScrolling(bool b)
+{
+    blockScroll = b;
+}
+
+void HelpWindow::ensureCursorVisible()
+{
+    if (!blockScroll)
+        QTextBrowser::ensureCursorVisible();
+}
+
+void HelpWindow::mousePressEvent(QMouseEvent *e)
+{
+    shiftPressed = e->modifiers() & Qt::ShiftModifier;
+    if (!(shiftPressed && hasAnchorAt(e->pos())))
+        QTextBrowser::mousePressEvent(e);
+}
+
+void HelpWindow::keyPressEvent(QKeyEvent *e)
+{
+    shiftPressed = e->modifiers() & Qt::ShiftModifier;
+    QTextBrowser::keyPressEvent(e);
+}
+
+bool HelpWindow::isKDERunning() const
+{
+    return !qgetenv("KDE_FULL_SESSION").isEmpty();
+}
+
+QT_END_NAMESPACE