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420 lines
12 KiB
420 lines
12 KiB
15 years ago
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/*
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Netscape Plugin Loader KPart
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Copyright (c) 2000 Matthias Hoelzer-Kluepfel <hoelzer@kde.org>
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Stefan Schimanski <1Stein@gmx.de>
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Copyright (c) 2002-2005 George Staikos <staikos@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <dcopclient.h>
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#include <kaboutdata.h>
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#include <kaction.h>
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#include <kapplication.h>
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#include <kdebug.h>
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#include <kfiledialog.h>
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#include <kio/netaccess.h>
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#include <klocale.h>
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#include <kparts/browserinterface.h>
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#include <kparts/browserextension.h>
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#include <qlabel.h>
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#include "nspluginloader.h"
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#include "plugin_part.h"
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class PluginBrowserExtension : public KParts::BrowserExtension
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{
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friend class PluginPart;
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public:
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PluginBrowserExtension( KParts::ReadOnlyPart *parent,
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const char *name = 0L )
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: KParts::BrowserExtension( parent, name ) {}
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~PluginBrowserExtension() {}
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// ATTENTION: you -CANNOT- add data members here
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};
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PluginLiveConnectExtension::PluginLiveConnectExtension(PluginPart* part)
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: KParts::LiveConnectExtension(part), _part(part), _retval(0L) {
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}
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PluginLiveConnectExtension::~PluginLiveConnectExtension() {
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}
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bool PluginLiveConnectExtension::get(const unsigned long, const QString &field, Type &type, unsigned long &retobj, QString &value) {
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Q_UNUSED(type);
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Q_UNUSED(retobj);
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Q_UNUSED(value);
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kdDebug(1432) << "PLUGIN:LiveConnect::get " << field << endl;
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return false;
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}
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bool PluginLiveConnectExtension::call(const unsigned long, const QString &func, const QStringList &args, Type &type, unsigned long &retobjid, QString &value) {
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Q_UNUSED(type);
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Q_UNUSED(retobjid);
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Q_UNUSED(value);
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kdDebug(1432) << "PLUGIN:LiveConnect::call " << func << " args: " << args << endl;
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return false;
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}
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bool PluginLiveConnectExtension::put( const unsigned long, const QString &field, const QString &value) {
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kdDebug(1432) << "PLUGIN:LiveConnect::put " << field << " " << value << endl;
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if (_retval && field == "__nsplugin") {
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*_retval = value;
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return true;
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} else if (field.lower() == "src") {
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_part->changeSrc(value);
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return true;
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}
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return false;
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}
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QString PluginLiveConnectExtension::evalJavaScript( const QString & script )
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{
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kdDebug(1432) << "PLUGIN:LiveConnect::evalJavaScript " << script << endl;
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ArgList args;
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QString jscode;
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jscode.sprintf("this.__nsplugin=eval(\"%s\")", QString(script).replace('\\', "\\\\").replace('"', "\\\"").latin1());
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//kdDebug(1432) << "String is [" << jscode << "]" << endl;
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args.push_back(qMakePair(KParts::LiveConnectExtension::TypeString, jscode));
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QString nsplugin("Undefined");
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_retval = &nsplugin;
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emit partEvent(0, "eval", args);
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_retval = 0L;
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return nsplugin;
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}
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extern "C"
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{
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/**
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* This function is the 'main' function of this part. It takes
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* the form 'void *init_lib<library name>() It always returns a
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* new factory object
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*/
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K_EXPORT_COMPONENT_FACTORY(libnsplugin,PluginFactory)
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}
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NSPluginCallback::NSPluginCallback(PluginPart *part)
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: DCOPObject()
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{
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_part = part;
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}
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void NSPluginCallback::postURL(QString url, QString target, QByteArray data, QString mime)
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{
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_part->postURL( url, target, data, mime );
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}
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void NSPluginCallback::requestURL(QString url, QString target)
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{
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_part->requestURL( url, target );
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}
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void NSPluginCallback::statusMessage( QString msg )
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{
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_part->statusMessage( msg );
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}
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void NSPluginCallback::evalJavaScript( int id, QString script )
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{
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_part->evalJavaScript( id, script );
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}
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/**
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* We need one static instance of the factory for our C 'main'
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* function
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*/
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KInstance *PluginFactory::s_instance = 0L;
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PluginFactory::PluginFactory()
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{
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kdDebug(1432) << "PluginFactory::PluginFactory" << endl;
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s_instance = 0;
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// preload plugin loader
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_loader = NSPluginLoader::instance();
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}
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PluginFactory::~PluginFactory()
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{
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kdDebug(1432) << "PluginFactory::~PluginFactory" << endl;
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_loader->release();
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if ( s_instance ) {
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delete s_instance->aboutData();
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delete s_instance;
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}
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s_instance = 0;
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}
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KParts::Part * PluginFactory::createPartObject(QWidget *parentWidget, const char *widgetName,
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QObject *parent, const char *name,
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const char *classname, const QStringList &args)
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{
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Q_UNUSED(classname)
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kdDebug(1432) << "PluginFactory::create" << endl;
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KParts::Part *obj = new PluginPart(parentWidget, widgetName, parent, name, args);
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return obj;
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}
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KInstance *PluginFactory::instance()
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{
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kdDebug(1432) << "PluginFactory::instance" << endl;
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if ( !s_instance )
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s_instance = new KInstance( aboutData() );
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return s_instance;
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}
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KAboutData *PluginFactory::aboutData()
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{
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KAboutData *about = new KAboutData("plugin", I18N_NOOP("plugin"), "1.99");
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return about;
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}
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/**************************************************************************/
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PluginPart::PluginPart(QWidget *parentWidget, const char *widgetName, QObject *parent,
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const char *name, const QStringList &args)
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: KParts::ReadOnlyPart(parent, name), _widget(0), _args(args),
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_destructed(0L)
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{
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setInstance(PluginFactory::instance());
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kdDebug(1432) << "PluginPart::PluginPart" << endl;
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// we have to keep the class name of KParts::PluginBrowserExtension
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// to let khtml find it
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_extension = static_cast<PluginBrowserExtension*>(new KParts::BrowserExtension(this));
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_liveconnect = new PluginLiveConnectExtension(this);
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// Only create this if we have no parent since the parent part is
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// responsible for "Save As" then
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if (!parent || !parent->inherits("Part")) {
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new KAction(i18n("&Save As..."), CTRL+Key_S, this, SLOT(saveAs()), actionCollection(), "saveDocument");
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setXMLFile("nspluginpart.rc");
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}
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// create
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_loader = NSPluginLoader::instance();
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_callback = new NSPluginCallback(this);
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// create a canvas to insert our widget
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_canvas = new PluginCanvasWidget( parentWidget, widgetName );
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//_canvas->setFocusPolicy( QWidget::ClickFocus );
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_canvas->setFocusPolicy( QWidget::WheelFocus );
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_canvas->setBackgroundMode( QWidget::NoBackground );
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setWidget(_canvas);
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_canvas->show();
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QObject::connect( _canvas, SIGNAL(resized(int,int)),
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this, SLOT(pluginResized(int,int)) );
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}
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PluginPart::~PluginPart()
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{
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kdDebug(1432) << "PluginPart::~PluginPart" << endl;
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delete _callback;
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_loader->release();
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if (_destructed)
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*_destructed = true;
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}
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bool PluginPart::openURL(const KURL &url)
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{
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closeURL();
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kdDebug(1432) << "-> PluginPart::openURL" << endl;
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m_url = url;
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QString surl = url.url();
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QString smime = _extension->urlArgs().serviceType;
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bool reload = _extension->urlArgs().reload;
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bool embed = false;
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bool post = _extension->urlArgs().doPost();
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// handle arguments
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QStringList argn, argv;
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QStringList::Iterator it = _args.begin();
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for ( ; it != _args.end(); ) {
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int equalPos = (*it).find("=");
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if (equalPos>0) {
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QString name = (*it).left(equalPos).upper();
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QString value = (*it).mid(equalPos+1);
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if (value[0] == '"' && value[value.length()-1] == '"')
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value = value.mid(1, value.length()-2);
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kdDebug(1432) << "name=" << name << " value=" << value << endl;
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if (!name.isEmpty()) {
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// hack to pass view mode from khtml
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if ( name=="__KHTML__PLUGINEMBED" ) {
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embed = true;
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kdDebug(1432) << "__KHTML__PLUGINEMBED found" << endl;
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} else {
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argn << name;
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argv << value;
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}
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}
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}
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it++;
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}
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if (surl.isEmpty()) {
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kdDebug(1432) << "<- PluginPart::openURL - false (no url passed to nsplugin)" << endl;
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return false;
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}
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// status messages
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emit setWindowCaption( url.prettyURL() );
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emit setStatusBarText( i18n("Loading Netscape plugin for %1").arg(url.prettyURL()) );
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// create plugin widget
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NSPluginInstance *inst = _loader->newInstance(_canvas, surl, smime, embed, argn, argv, kapp->dcopClient()->appId(), _callback->objId(), reload, post, _extension->urlArgs().postData);
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if ( inst ) {
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_widget = inst;
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} else {
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QLabel *label = new QLabel( i18n("Unable to load Netscape plugin for %1").arg(url.url()), _canvas );
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label->setAlignment( AlignCenter | WordBreak );
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_widget = label;
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}
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_widget->resize(_canvas->width(), _canvas->height());
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_widget->show();
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kdDebug(1432) << "<- PluginPart::openURL = " << (inst!=0) << endl;
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return inst != 0L;
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}
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bool PluginPart::closeURL()
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{
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kdDebug(1432) << "PluginPart::closeURL" << endl;
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delete _widget;
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_widget = 0;
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return true;
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}
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void PluginPart::reloadPage()
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{
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kdDebug(1432) << "PluginPart::reloadPage()" << endl;
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_extension->browserInterface()->callMethod("goHistory(int)", 0);
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}
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void PluginPart::postURL(const QString& url, const QString& target, const QByteArray& data, const QString& mime)
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{
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kdDebug(1432) << "PluginPart::postURL( url=" << url
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<< ", target=" << target << endl;
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KURL new_url(this->url(), url);
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KParts::URLArgs args;
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args.setDoPost(true);
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args.frameName = target;
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args.postData = data;
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args.setContentType(mime);
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emit _extension->openURLRequest(new_url, args);
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}
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void PluginPart::requestURL(const QString& url, const QString& target)
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{
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kdDebug(1432) << "PluginPart::requestURL( url=" << url
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<< ", target=" << target << endl;
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KURL new_url(this->url(), url);
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KParts::URLArgs args;
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args.frameName = target;
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args.setDoPost(false);
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emit _extension->openURLRequest(new_url, args);
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}
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void PluginPart::evalJavaScript(int id, const QString & script)
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{
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kdDebug(1432) <<"evalJavascript: before widget check"<<endl;
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if (_widget) {
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bool destructed = false;
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_destructed = &destructed;
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kdDebug(1432) <<"evalJavascript: there is a widget" <<endl;
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QString rc = _liveconnect->evalJavaScript(script);
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if (destructed)
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return;
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_destructed = 0L;
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kdDebug(1432) << "Liveconnect: script [" << script << "] evaluated to [" << rc << "]" << endl;
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NSPluginInstance *ni = dynamic_cast<NSPluginInstance*>(_widget.operator->());
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if (ni)
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ni->javascriptResult(id, rc);
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}
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}
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void PluginPart::statusMessage(QString msg)
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{
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kdDebug(1422) << "PluginPart::statusMessage " << msg << endl;
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emit setStatusBarText(msg);
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}
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void PluginPart::pluginResized(int w, int h)
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{
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kdDebug(1432) << "PluginPart::pluginResized()" << endl;
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if (_widget) {
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_widget->resize(w, h);
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}
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}
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void PluginPart::changeSrc(const QString& url) {
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closeURL();
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openURL(KURL( url ));
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}
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void PluginPart::saveAs() {
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KURL savefile = KFileDialog::getSaveURL(QString::null, QString::null, _widget);
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KIO::NetAccess::copy(m_url, savefile, _widget);
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}
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void PluginCanvasWidget::resizeEvent(QResizeEvent *ev)
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{
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QWidget::resizeEvent(ev);
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emit resized(width(), height());
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}
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#include "plugin_part.moc"
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