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tqt3/tools/assistant/helpwindow.cpp

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/**********************************************************************
** Copyright (C) 2000-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the TQt Assistant.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** Licensees holding valid TQt Commercial licenses may use this file in
** accordance with the TQt Commercial License Agreement provided with
** the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#include "helpwindow.h"
#include "mainwindow.h"
#include "tabbedbrowser.h"
#include "helpdialogimpl.h"
#include "config.h"
#include <qapplication.h>
#include <qclipboard.h>
#include <qurl.h>
#include <qmessagebox.h>
#include <qdir.h>
#include <qfile.h>
#include <qprocess.h>
#include <qpopupmenu.h>
#include <qaction.h>
#include <qfileinfo.h>
#include <qevent.h>
#include <qtextstream.h>
#include <qtextcodec.h>
#if defined(Q_OS_WIN32)
#include <windows.h>
#endif
HelpWindow::HelpWindow( MainWindow *w, TQWidget *parent, const char *name )
: TQTextBrowser( parent, name ), mw( w ), blockScroll( FALSE ),
shiftPressed( FALSE ), newWindow( FALSE )
{
connect(this, SIGNAL(forwardAvailable(bool)), this, SLOT(updateForward(bool)));
connect(this, SIGNAL(backwardAvailable(bool)), this, SLOT(updateBackward(bool)));
}
void HelpWindow::setSource( const TQString &name )
{
if ( name.isEmpty() )
return;
if (newWindow || shiftPressed) {
removeSelection();
mw->saveSettings();
mw->saveToolbarSettings();
MainWindow *nmw = new MainWindow;
TQFileInfo currentInfo( source() );
TQFileInfo linkInfo( name );
TQString target = name;
if( linkInfo.isRelative() )
target = currentInfo.dirPath( TRUE ) + "/" + name;
nmw->setup();
nmw->move( mw->geometry().topLeft() );
if ( mw->isMaximized() )
nmw->showMaximized();
else
nmw->show();
nmw->showLink( target );
return;
}
if ( name.left( 7 ) == "http://" || name.left( 6 ) == "ftp://" ) {
TQString webbrowser = Config::configuration()->webBrowser();
if ( webbrowser.isEmpty() ) {
#if defined(Q_OS_WIN32)
QT_WA( {
ShellExecute( winId(), 0, (TCHAR*)name.ucs2(), 0, 0, SW_SHOWNORMAL );
} , {
ShellExecuteA( winId(), 0, name.local8Bit(), 0, 0, SW_SHOWNORMAL );
} );
#elif defined(Q_OS_MACX)
webbrowser = "/usr/bin/open";
#else
int result = TQMessageBox::information( mw, tr( "Help" ),
tr( "Currently no Web browser is selected.\nPlease use the settings dialog to specify one!\n" ),
"Open", "Cancel" );
if ( result == 0 ) {
emit chooseWebBrowser();
webbrowser = Config::configuration()->webBrowser();
}
#endif
if ( webbrowser.isEmpty() )
return;
}
TQProcess *proc = new TQProcess(this);
proc->addArgument( webbrowser );
TQObject::connect(proc, SIGNAL(processExited()), proc, SLOT(deleteLater()));
proc->addArgument( name );
proc->start();
return;
}
if ( name.right( 3 ) == "pdf" ) {
TQString pdfbrowser = Config::configuration()->pdfReader();
if ( pdfbrowser.isEmpty() ) {
#if defined(Q_OS_MACX)
pdfbrowser = "/usr/bin/open";
#else
TQMessageBox::information( mw,
tr( "Help" ),
tr( "No PDF Viewer has been specified\n"
"Please use the settings dialog to specify one!\n" ) );
return;
#endif
}
TQFileInfo info( pdfbrowser );
if( !info.exists() ) {
TQMessageBox::information( mw,
tr( "Help" ),
tr( "TQt Assistant is unable to start the PDF Viewer\n\n"
"%1\n\n"
"Please make sure that the executable exists and is located at\n"
"the specified location." ).arg( pdfbrowser ) );
return;
}
TQProcess *proc = new TQProcess(this);
TQObject::connect(proc, SIGNAL(processExited()), proc, SLOT(deleteLater()));
proc->addArgument( pdfbrowser );
proc->addArgument( name );
proc->start();
return;
}
TQUrl u( context(), name );
if ( !u.isLocalFile() ) {
TQMessageBox::information( mw, tr( "Help" ), tr( "Can't load and display non-local file\n"
"%1" ).arg( name ) );
return;
}
setText("<body bgcolor=\"" + paletteBackgroundColor().name() + "\">");
TQTextBrowser::setSource( name );
}
void HelpWindow::openLinkInNewWindow()
{
if ( lastAnchor.isEmpty() )
return;
newWindow = TRUE;
setSource(lastAnchor);
newWindow = FALSE;
}
void HelpWindow::openLinkInNewWindow( const TQString &link )
{
lastAnchor = link;
openLinkInNewWindow();
}
void HelpWindow::openLinkInNewPage()
{
if( lastAnchor.isEmpty() )
return;
mw->browsers()->newTab( lastAnchor );
lastAnchor = TQString::null;
}
void HelpWindow::openLinkInNewPage( const TQString &link )
{
lastAnchor = link;
openLinkInNewPage();
}
TQPopupMenu *HelpWindow::createPopupMenu( const TQPoint& pos )
{
TQPopupMenu *m = new TQPopupMenu(0);
lastAnchor = anchorAt( pos );
if ( !lastAnchor.isEmpty() ) {
if ( lastAnchor.at( 0 ) == '#' ) {
TQString src = source();
int hsh = src.find( '#' );
lastAnchor = ( hsh>=0 ? src.left( hsh ) : src ) + lastAnchor;
}
m->insertItem( tr("Open Link in New Window\tShift+LMB"),
this, SLOT( openLinkInNewWindow() ) );
m->insertItem( tr("Open Link in New Tab"),
this, SLOT( openLinkInNewPage() ) );
}
mw->actionNewWindow->addTo( m );
mw->actionOpenPage->addTo( m );
mw->actionClosePage->addTo( m );
m->insertSeparator();
mw->actionGoPrevious->addTo( m );
mw->actionGoNext->addTo( m );
mw->actionGoHome->addTo( m );
m->insertSeparator();
mw->actionZoomIn->addTo( m );
mw->actionZoomOut->addTo( m );
m->insertSeparator();
mw->actionEditCopy->addTo( m );
mw->actionEditFind->addTo( m );
return m;
}
void HelpWindow::blockScrolling( bool b )
{
blockScroll = b;
}
void HelpWindow::ensureCursorVisible()
{
if ( !blockScroll )
TQTextBrowser::ensureCursorVisible();
}
void HelpWindow::contentsMousePressEvent(TQMouseEvent *e)
{
shiftPressed = ( e->state() & ShiftButton );
TQTextBrowser::contentsMousePressEvent(e);
}
void HelpWindow::keyPressEvent(TQKeyEvent *e)
{
shiftPressed = ( e->state() & ShiftButton );
TQTextBrowser::keyPressEvent(e);
}
void HelpWindow::copy()
{
if (textFormat() == PlainText) {
TQTextEdit::copy();
} else {
TextFormat oldTf = textFormat();
setTextFormat(PlainText);
TQString selectText = selectedText();
selectText.replace("<br>", "\n");
selectText.replace("\xa0", " ");
selectText.replace("&gt;", ">");
selectText.replace("&lt;", "<");
selectText.replace("&amp;", "&");
TQClipboard *cb = TQApplication::clipboard();
if (cb->supportsSelection())
cb->setText(selectText, TQClipboard::Selection);
cb->setText(selectText, TQClipboard::Clipboard);
setTextFormat(oldTf);
}
}
void HelpWindow::updateForward(bool fwd)
{
fwdAvail = fwd;
}
void HelpWindow::updateBackward(bool back)
{
backAvail = back;
}