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tdebindings/kjsembed/kjsembedpart.h

329 lines
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// -*- c++ -*-
/*
* 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.
*/
#ifndef KJSEMBEDJSCONSOLEPART_H
#define KJSEMBEDJSCONSOLEPART_H
#include "global.h"
#include <tqstringlist.h>
#ifndef QT_ONLY
#include <kparts/part.h>
#endif
#include <kjs/interpreter.h>
#include <kjs/object.h>
#include <kjs/value.h>
#include <kjsembed/jsbinding.h>
#ifndef QT_ONLY
#include <kjsembed/xmlactionclient.h>
#else
#include <kjsembed/qtstubs.h>
#endif
class TQWidget;
#define KJSEMBED_VERSION_STRING "0.3"
#define KJSEMBED_VERSION_MAJOR 0
#define KJSEMBED_VERSION_MINOR 3
/**
* Namespace containing the KJSEmbed library.
*/
namespace KJSEmbed {
class JSObjectProxy;
class JSConsoleWidget;
class JSFactory;
class JSBuiltIn;
/**
* A KPart for embedding KJS in an application.
*
* @version $Id$
* @author Richard Moore, rich@kde.org
* This is the easiest class for interacting and embedding the interpreter. To use KJSEmbed in yours
* application you can simply create a new KJSEmbedPart. Once you have this object you can expose your
* TQObect based classes with a few simple methods. The interface also allows for the manipulation of TQVariant data
* structures between Javascript and C++. Complex Javascript arrays are transparently converted to TQMaps and TQValueLists
* depending on the type of the Array. KJSEmbed also provides transparent access to most TQVariant datatypes between
* C++ and Javascript. The easiest way to integrate KJSEmbed into your application is to create a TQObject based class
* that will be your interface between C++ and Javascript. This object than can expose C++ methods via Qt slots, and
* TQVariant datatypes via Qt properties. This class will also have an interface where C++ objects can call Javascript
* methods.
*/
class KJSEMBED_EXPORT KJSEmbedPart : public KParts::ReadOnlyPart
{
Q_OBJECT
Q_PROPERTY( TQStringList constructorNames READ constructorNames )
Q_PROPERTY( TQCString versionString READ versionString )
Q_PROPERTY( int versionMajor READ versionMajor )
Q_PROPERTY( int versionMinor READ versionMinor )
public:
/** Create a KJSEmbedPart. */
KJSEmbedPart( TQObject *parent=0, const char *name=0 );
/**
* Creates a KJSEmbedPart for which the parents of the view and part are different.
*
* Caution! you cannot use parent = [KQ]Application and wparent = 0L.
* This will cause a crash on exit since the widget will not be destroyed
* but the part will get destroyed at the end of the TQApplication
* constructor. This results in the widget trying to do GUI related things
* after the TQPaint stuff is destroyed.
*/
KJSEmbedPart( TQWidget *wparent, const char *wname=0, TQObject *parent=0, const char *name=0 );
/**
* Create a KJSEmbedPart with the specified interpreter.
*
* See warning above.
*/
KJSEmbedPart( KJS::Interpreter *js, TQWidget *wparent, const char *wname=0,
TQObject *parent=0, const char *name=0 );
/** Cleans up. */
virtual ~KJSEmbedPart();
//
// Version information
//
/** Returns the version of KJSEmbed. */
TQCString versionString() const;
/** Returns the minor version number of KJSEmbed. */
int versionMajor() const;
/** Returns the major version number of KJSEmbed. */
int versionMinor() const;
//
// Script environment.
//
/** Checks to see if a desired method is available in Javascript.
* @code
* if ( js->hasMethod( "javascriptFunction" ) )
* ... // do something with that function.
* else
* ... // function not present.
*/
bool hasMethod( const TQString &methodName );
/** Calls a method from Javascript starting from the global context.
* @code
* KJS::List args;
* args.append(KJS::String("String Arg") );
* args.append(KJS::Number(10) );
* args.append(KJSEmbed::convertToValue(js->globalExec(), TQColor("blue" ) ) );
* KJS::Value val = js->callMethod("javascriptFunction", args );
* TQString myString = val.toString().qstring();
* @endcode
*/
KJS::Value callMethod(const TQString &methodName, const KJS::List &args) const;
/** Gets a value from Javascript starting from the global context.
* @code
* KJS::Value val = js->getValue("someValue");
* TQString myString = val.toString().qstring();
* @endcode
*/
KJS::Value getValue( const TQString &valueName ) const;
/** Sets a value in a Javascript starting from the global context.
* Note if this value is not present in the javascript context it will
* become defined once this method is called.
* @code
* KJS::Value val = KJSEmbed::convertToValue(js->globalExec(), TQColor("blue"));
* js->putValue("myVar", val);
* @endcode
*/
void putValue( const TQString &valueName, const KJS::Value &value);
/** Convinence method that wraps around @ref putValue that only handles values
* that are supported by TQVariant.
* @code
* js->putVariant( "myVar", TQColor("blue") );
* @endcode
*/
void putVariant( const TQString &valueName, const TQVariant &value);
/** Convinence method that wraps around @ref getValue that only handles values
* that are supported by TQVariant.
* @code
* TQColor value = js->getVariant( "myVar").toColor();
* @endcode
*/
TQVariant getVariant( const TQString &valueName ) const;
/** Returns the global object of the interpreter. */
KJS::Object globalObject() const { return js->globalObject(); }
/** Returns the completion object for the last script executed. */
KJS::Completion completion() const { return res; }
/** Returns the JS object of the part. */
KJS::Object partObject() const { return partobj; }
/**
* Publishes 'obj' as property 'name' of the global object. If 'name' is
* not specified then the name property of 'obj' is used instead.
* @code
* // In C++
* TQObject *myClass = new TQObjectBasedClass(this, "jsObject");
* js->addObject( myClass );
* // In Javascript
* jsObject.someProperty = "Test Property";
* // In C++ again
* kdDebug() << "New Value: " << myClass->someProperty() << endl; // displays "Test Property"
* @endcode
*/
KJS::Object addObject( TQObject *obj, const char *name=0 );
/**
* Publishes 'obj' as property 'name' of object 'parent'. The binding is defined
* using @ref JSObjectProxy, and is subject to the current default SecurityPolicy.
*/
KJS::Object addObject( TQObject *obj, KJS::Object &parent, const char *name=0 );
/** Returns a JS::Object that provides a binding to the specified TQObject. */
KJS::Object bind( TQObject *obj );
//
// Query the supported types
//
/** Returns a list of the names of the constructors of this interpreter. */
TQStringList constructorNames() const;
/** Returns a JS Array of the constructors of this interpreter. */
KJS::Value constructors() const;
/** Returns a list of the constructors of this interpreter. */
KJS::List constructorList() const;
public slots:
//
// Reimplement the KPart API.
//
/** Returns the view widget, creating one if retquired.*/
virtual KJSEmbed::JSConsoleWidget *view();
/** Opens a URL. If the URL has the protocol 'javascript' then it is executed. */
virtual bool openURL( const KURL &url );
//
// XML Action Handling
//
/** Returns the current XMLActionClient. */
KJSEmbed::XMLActionClient *actionClient() const { return xmlclient; }
/** Loads the XML actions defined in the specified file to the default XMLActionClient. */
bool loadActionSet( const TQString &file );
//
// Script environemnt
//
/** Returns the current interpreter. */
KJS::Interpreter *interpreter() const { return js; }
/** Returns the execution context of the interpreter. */
KJS::ExecState *globalExec() const { return js->globalExec(); }
/** Returns the current factory object. */
JSFactory *factory() const { return jsfactory; }
/** Evaluates the specified string, with the specified value as 'this'. */
virtual KJS::Value evaluate( const TQString &script, const KJS::Value &self=KJS::Null() );
/** Executes the specified string, with the specified value as 'this'. */
bool execute( const TQString &script, const KJS::Value &self=KJS::Null() );
/**
* Executes the specified string, with the specified value as 'this' and sets
* result to the completion object returned by the interpreter.
*/
virtual bool execute( KJS::Completion &result, const TQString &script, const KJS::Value &self );
/** Loads and runs the specified file. */
virtual bool runFile( const TQString &filename, const KJS::Value &self=KJS::Null() );
/**
* Loads but does not execute the specified script file. If the
* first line of the file starts with the string '#!' then that
* line will be omitted from the returned string.
*/
TQString loadFile( const TQString &file );
protected:
/** Creates the interpreter. */
void createInterpreter();
/**
* Creates the built-in objects and methods in the specified parent object
* normally the global object of the interpreter. This method is called
* automatically unless you create the part with a custom interpreter, if
* you do then you have to call this method yourself if you want the
* built-ins to be available.
*/
void createBuiltIn( KJS::ExecState *exec, KJS::Object &parent );
/** Sets up the XMLActionClient. */
void createActionClient();
/** Reimplemented to disable file support. */
virtual bool openFile() { return false; }
/** @internal Hook for virtual that cannot break compatibility. */
virtual void virtual_hook( int id, void *data );
private:
XMLActionClient *xmlclient;
JSConsoleWidget *jsConsole;
JSFactory *jsfactory;
JSBuiltIn *builtins;
TQWidget *widgetparent;
TQCString widgetname;
KJS::Object partobj;
KJS::Completion res;
KJS::Interpreter *js;
bool deletejs;
class KJSEmbedPartPrivate *d;
};
} // namespace KJSEmbed
#endif // KJSEMBEDJSCONSOLEPART_H
// Local Variables:
// c-basic-offset: 4
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