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tdebindings/kjsembed/kjsembedpart.cpp

450 lines
11 KiB

/*
* Copyright (C) 2001-2003, Richard J. Moore <rich@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <qobject.h>
#include <qdialog.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qwidget.h>
#include <qwidgetfactory.h>
#ifndef QT_ONLY
#include <kaction.h>
#endif // QT_ONLY
#include <kjs/interpreter.h>
#include <kjs/object.h>
#include <kjs/ustring.h>
#include <kjs/types.h>
#include <kjs/value.h>
#include "global.h"
#include "jsfactory.h"
#include "jsbinding.h"
#include "jsobjectproxy.h"
#include "jsconsolewidget.h"
#include "jsbuiltin.h"
#ifndef QT_ONLY
#include "bindings/image_imp.h"
#endif // QT_ONLY
#include "kjsembedpart_imp.h"
#include "kjsembedpart.h"
#ifndef QT_ONLY
#include "kjsembedpart.moc"
namespace KJSEmbed {
class KJSEmbedActionRunner : public XMLActionRunner
{
public:
KJSEmbedActionRunner( KJSEmbedPart *jspart ) : XMLActionRunner(), part(jspart) {}
virtual ~KJSEmbedActionRunner() {}
virtual bool run( XMLActionClient *client, const XMLActionClient::XMLActionScript &script ) {
if ( script.type == "js" )
return part->runFile( script.src );
else
return XMLActionRunner::run( client, script );
}
private:
KJSEmbedPart *part;
};
} // namespace KJSEmbed
#else // QT_ONLY
#include "qtstubs.h"
#endif // QT_ONLY
namespace KJSEmbed {
//
// KPart
//
KJSEmbedPart::KJSEmbedPart( QObject *parent, const char *name )
: KParts::ReadOnlyPart( parent, name ? name : "kjsembed_part" ),
jsConsole(0), jsfactory(0),
widgetparent(0), widgetname(name ? name : "kjsembed_part"), deletejs(false)
{
createInterpreter();
createBuiltIn( js->globalExec(), js->globalObject() );
createActionClient();
}
KJSEmbedPart::KJSEmbedPart( QWidget *wparent, const char *wname, QObject *parent, const char *name )
: KParts::ReadOnlyPart( parent, name ? name : (wname?wname:"jsembed_part") ),
jsConsole(0), jsfactory(0),
widgetparent(wparent), widgetname(wname), deletejs(false)
{
createInterpreter();
createBuiltIn( js->globalExec(), js->globalObject() );
createActionClient();
}
KJSEmbedPart::KJSEmbedPart( KJS::Interpreter *jsi, QWidget *wparent, const char *wname,
QObject *parent, const char *name )
: KParts::ReadOnlyPart( parent, name ? name : (wname?wname:"jsembed_part") ),
jsConsole(0), jsfactory(0), builtins(0),
widgetparent(wparent), widgetname(wname), js(jsi), deletejs(false)
{
if ( !js ) {
createInterpreter();
createBuiltIn( js->globalExec(), js->globalObject() );
}
createActionClient();
}
KJSEmbedPart::~KJSEmbedPart()
{
if ( deletejs )
delete js;
delete jsfactory;
delete builtins;
}
void KJSEmbedPart::createInterpreter()
{
deletejs = true;
js = new KJS::Interpreter();
jsfactory = new JSFactory( this );
jsfactory->addType( className() );
jsfactory->addTypes( js->globalExec(), js->globalObject() );
}
void KJSEmbedPart::createBuiltIn( KJS::ExecState *exec, KJS::Object &parent )
{
partobj = addObject( this, parent, "part" );
builtins = new JSBuiltIn( this );
builtins->add( exec, parent );
}
void KJSEmbedPart::createActionClient()
{
#ifndef QT_ONLY
xmlclient = new KJSEmbed::XMLActionClient( this );
xmlclient->setActionCollection( actionCollection() );
xmlclient->setRunner( new KJSEmbedActionRunner(this) );
#endif // QT_ONLY
}
JSConsoleWidget *KJSEmbedPart::view()
{
#ifndef QT_ONLY
if ( !jsConsole ) {
QCString name = widgetname ? widgetname : QCString("jsembed_console");
jsConsole = new JSConsoleWidget( this, widgetparent, name );
setWidget( jsConsole );
jsfactory->addType( jsConsole->className() );
}
return jsConsole;
#endif // QT_ONLY
return 0L;
}
QStringList KJSEmbedPart::constructorNames() const
{
QStringList classes;
KJS::List cons = constructorList();
KJS::ListIterator it = cons.begin();
while ( it != cons.end() ) {
KJS::Value v = *it;
classes += v.toString( js->globalExec() ).qstring();
it++;
}
return classes;
}
KJS::Value KJSEmbedPart::constructors() const
{
KJS::List items = constructorList();
kdDebug(80001) << "KJSEmbedPart::constructors() returning " << items.size() << " items" << endl;
return KJS::Object( js->builtinArray().construct( js->globalExec(), items ) );
}
KJS::List KJSEmbedPart::constructorList() const
{
KJS::List items;
KJS::Object obj = js->globalObject();
KJS::ExecState *exec = js->globalExec();
KJS::ReferenceList l = obj.propList( exec );
KJS::ReferenceListIterator propIt = l.begin();
while ( propIt != l.end() ) {
KJS::Identifier name = propIt->getPropertyName( exec );
if ( obj.hasProperty( exec, name ) ) {
KJS::Value v = obj.get( exec, name );
KJS::Object vobj = v.toObject( exec );
if ( vobj.implementsConstruct() )
items.append( KJS::String( name.ustring() ) );
}
propIt++;
}
return items;
}
//
// Version information
//
QCString KJSEmbedPart::versionString() const
{
return QCString(KJSEMBED_VERSION_STRING);
}
int KJSEmbedPart::versionMajor() const
{
return KJSEMBED_VERSION_MAJOR;
}
int KJSEmbedPart::versionMinor() const
{
return KJSEMBED_VERSION_MINOR;
}
//
// Execute a JS script.
//
KJS::Value KJSEmbedPart::evaluate( const QString &script, const KJS::Value &self )
{
if ( execute( res, script, self ) )
return res.value();
return KJS::Null();
}
bool KJSEmbedPart::execute( const QString &script, const KJS::Value &self )
{
return execute( res, script, self );
}
bool KJSEmbedPart::execute( KJS::Completion &result, const QString &script, const KJS::Value &self )
{
KJS::Value val( self );
result = js->evaluate( script, self.isNull() ? partobj : val );
return (result.complType() == KJS::Normal) || (result.complType() == KJS::ReturnValue);
}
bool KJSEmbedPart::openURL( const KURL &url )
{
if ( url.protocol() == "javascript" ) {
// kdDebug(80001) << "KJSEmbedPart: openURL '" << url.url() << "' is javascript" << endl;
#ifndef QT_ONLY
QString cmd = url.url();
#else
QString cmd = url.toString();
#endif
QString js( "javascript:" );
cmd = cmd.replace( 0, js.length(), QString("") );
// kdDebug(80001) << "KJSEmbedPart: JS command is '" << cmd << "'" << endl;
return execute( cmd );
}
return false;
}
//
// Invoke a script file.
//
bool KJSEmbedPart::runFile( const QString &name, const KJS::Value &self )
{
kdDebug(80001) << "KJSEmbedPart::runFile(): file is '" << name << "'" << endl;
QString script = loadFile( name );
return execute( script, self );
}
bool KJSEmbedPart::loadActionSet( const QString &file )
{
#ifndef QT_ONLY
return xmlclient->load( file );
#else // QT_ONLY
Q_UNUSED( file );
return false;
#endif // QT_ONLY
}
QString KJSEmbedPart::loadFile( const QString &src )
{
QString script;
if ( src == "-" ) {
QTextStream ts( stdin, IO_ReadOnly );
script = ts.read();
}
else {
QFile file( src );
if ( file.open( IO_ReadOnly ) ) {
script = QString( file.readAll() );
}
else {
kdWarning() << "Could not open file '" << src << "', "
<< strerror( errno ) << endl;
return QString::null;
}
}
if ( script.startsWith( "#!" ) ) {
int pos = script.find( "\n" );
if ( pos > 0 )
script = script.mid( pos );
}
return script;
}
//
// Publishing objects.
//
KJS::Object KJSEmbedPart::bind( QObject *obj )
{
KJS::Object jsobj = jsfactory->createProxy( js->globalExec(), obj );
JSProxy::toObjectProxy(jsobj.imp() )->setOwner(JSProxy::Native);
return jsobj;
}
KJS::Object KJSEmbedPart::addObject( QObject *obj, KJS::Object &parent, const char *name )
{
KJS::Object jsobj = bind( obj );
parent.put( js->globalExec(), name ? name : obj->name(), jsobj );
return jsobj;
}
KJS::Object KJSEmbedPart::addObject( QObject *obj, const char *name )
{
return addObject( obj, js->globalObject(), name );
}
void KJSEmbedPart::virtual_hook( int /*id*/, void * /*data*/ )
{
}
static KJS::Object scopeWalker( KJS::ExecState *exec, const KJS::Object &root, const QString &objectString )
{
KJS::Object returnObject = root;
QStringList objects = QStringList::split(".", objectString);
for( uint idx = 0; idx < objects.count(); ++idx)
{
KJS::Identifier id = KJS::Identifier( KJS::UString( objects[idx] ));
KJS::Value newObject = returnObject.get(exec, id );
if( newObject.isValid() )
returnObject = newObject.toObject(exec);
}
return returnObject;
}
KJS::Value KJSEmbedPart::callMethod( const QString & methodName, const KJS::List & args ) const
{
KJS::ExecState *exec = js->globalExec();
KJS::Identifier id = KJS::Identifier( KJS::UString(methodName.latin1() ));
KJS::Object obj = js->globalObject();
KJS::Object fun = obj.get(exec, id ).toObject( exec );
KJS::Value retValue;
if ( !fun.implementsCall() )
{
// We need to create an exception here...
}
else
retValue = fun.call(exec, obj, args);
kdDebug( 80001 ) << "Returned type is: " << retValue.type() << endl;
if( exec->hadException() )
{
kdWarning( 80001 ) << "Got error: " << exec->exception().toString(exec).qstring() << endl;
return exec->exception();
}
else
{
if( retValue.type() == 1 && retValue.type() == 0)
{
kdDebug( 80001 ) << "Got void return type. " << endl;
return KJS::Null();
}
}
return retValue;
}
KJS::Value KJSEmbedPart::getValue( const QString & valueName ) const
{
KJS::ExecState *exec = js->globalExec();
KJS::Identifier id = KJS::Identifier( KJS::UString(valueName.latin1() ));
KJS::Object obj = js->globalObject();
return obj.get(exec, id );
}
void KJSEmbedPart::putValue( const QString & valueName, const KJS::Value & value )
{
KJS::ExecState *exec = js->globalExec();
KJS::Identifier id = KJS::Identifier( KJS::UString(valueName.latin1() ));
KJS::Object obj = js->globalObject();
obj.put(exec, id, value);
}
void KJSEmbedPart::putVariant( const QString & valueName, const QVariant & value )
{
KJS::Value val = convertToValue( js->globalExec(), value);
putValue( valueName, val );
}
QVariant KJSEmbedPart::getVariant( const QString & valueName ) const
{
return convertToVariant( js->globalExec(), getValue( valueName ) );
}
bool KJSEmbedPart::hasMethod( const QString & methodName )
{
KJS::ExecState *exec = js->globalExec();
KJS::Identifier id = KJS::Identifier( KJS::UString(methodName.latin1() ));
KJS::Object obj = js->globalObject();
KJS::Object fun = obj.get(exec, id ).toObject( exec );
return fun.implementsCall();
}
}// namespace KJSEmbed
// Local Variables:
// c-basic-offset: 4
// End: