Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 467 insertions, 0 deletions

diff --git a/khtml/ecma/kjs_binding.cpp b/khtml/ecma/kjs_binding.cpp
new file mode 100644
index 000000000..295d8c5e9
--- /dev/null
+++ b/khtml/ecma/kjs_binding.cpp
@@ -0,0 +1,467 @@
+// -*- c-basic-offset: 2 -*-
+/*
+ *  This file is part of the KDE libraries
+ *  Copyright (C) 1999-2003 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2001-2003 David Faure (faure@kde.org)
+ *  Copyright (C) 2003 Apple Computer, Inc.
+ *
+ *  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; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "kjs_binding.h"
+#include "kjs_dom.h"
+
+#include "dom/dom_exception.h"
+#include "dom/dom2_range.h"
+#include "xml/dom2_eventsimpl.h"
+#include "khtmlpart_p.h"
+
+#include <kdebug.h>
+#include <kparts/browserextension.h>
+
+#include <assert.h>
+
+using namespace KJS;
+
+/* TODO:
+ * The catch all (...) clauses below shouldn't be necessary.
+ * But they helped to view for example www.faz.net in an stable manner.
+ * Those unknown exceptions should be treated as severe bugs and be fixed.
+ *
+ * these may be CSS exceptions - need to check - pmk
+ */
+
+Value DOMObject::get(ExecState *exec, const Identifier &p) const
+{
+  Value result;
+  try {
+    result = tryGet(exec,p);
+  }
+  catch (DOM::DOMException e) {
+    // ### translate code into readable string ?
+    // ### oh, and s/QString/i18n or I18N_NOOP (the code in kjs uses I18N_NOOP... but where is it translated ?)
+    //     and where does it appear to the user ?
+    Object err = Error::create(exec, GeneralError, QString("DOM exception %1").arg(e.code).local8Bit());
+    exec->setException( err );
+    result = Undefined();
+  }
+  catch (...) {
+    kdError(6070) << "Unknown exception in DOMObject::get()" << endl;
+    result = String("Unknown exception");
+  }
+
+  return result;
+}
+
+void DOMObject::put(ExecState *exec, const Identifier &propertyName,
+                    const Value &value, int attr)
+{
+  try {
+    tryPut(exec, propertyName, value, attr);
+  }
+  catch (DOM::DOMException e) {
+    Object err = Error::create(exec, GeneralError, QString("DOM exception %1").arg(e.code).local8Bit());
+    exec->setException(err);
+  }
+  catch (...) {
+    kdError(6070) << "Unknown exception in DOMObject::put()" << endl;
+  }
+}
+
+void DOMObject::tryPut(ExecState *exec, const Identifier &propertyName,
+                        const Value& value, int attr)
+{
+    static_cast<ScriptInterpreter*>(exec->dynamicInterpreter())->customizedDOMObject(this);
+    ObjectImp::put(exec,propertyName,value,attr);
+}
+
+UString DOMObject::toString(ExecState *) const
+{
+  return "[object " + className() + "]";
+}
+
+Boolean DOMObject::hasInstance(ExecState *exec, const Value &value)
+{
+  if (value.type() != ObjectType)
+    return Boolean(false);
+
+  Value prot = get(exec,prototypePropertyName);
+  if (prot.type() != ObjectType && prot.type() != NullType) {
+    Object err = Error::create(exec, TypeError, "Invalid prototype encountered "
+                               "in instanceof operation.");
+    exec->setException(err);
+    return Boolean(false);
+  }
+
+  Object v = Object(static_cast<ObjectImp*>(value.imp()));
+  while ((v = Object::dynamicCast(v.prototype())).imp()) {
+    if (v.imp() == prot.imp())
+      return Boolean(true);
+  }
+  return Boolean(false);
+}
+
+
+Value DOMFunction::get(ExecState *exec, const Identifier &propertyName) const
+{
+  try {
+    return tryGet(exec, propertyName);
+  }
+  catch (DOM::DOMException e) {
+    Object err = Error::create(exec, GeneralError, QString("DOM exception %1").arg(e.code).local8Bit());
+    exec->setException(err);
+    return Undefined();
+  }
+  catch (...) {
+    kdError(6070) << "Unknown exception in DOMFunction::get()" << endl;
+    return String("Unknown exception");
+  }
+}
+
+Value DOMFunction::call(ExecState *exec, Object &thisObj, const List &args)
+{
+  try {
+    return tryCall(exec, thisObj, args);
+  }
+  // pity there's no way to distinguish between these in JS code
+  // ### Look into setting prototypes of these & the use of instanceof so the exception
+  // type can be determined. See what other browsers do.
+  catch (DOM::DOMException e) {
+    Object err = Error::create(exec, GeneralError, QString("DOM Exception %1").arg(e.code).local8Bit());
+    err.put(exec, "code", Number(e.code));
+    exec->setException(err);
+    return Undefined();
+  }
+  catch (DOM::RangeException e) {
+    Object err = Error::create(exec, GeneralError, QString("DOM Range Exception %1").arg(e.code).local8Bit());
+    err.put(exec, "code", Number(e.code));
+    exec->setException(err);
+    return Undefined();
+  }
+  catch (DOM::CSSException e) {
+    Object err = Error::create(exec, GeneralError, QString("CSS Exception %1").arg(e.code).local8Bit());
+    err.put(exec, "code", Number(e.code));
+    exec->setException(err);
+    return Undefined();
+  }
+  catch (DOM::EventException e) {
+    Object err = Error::create(exec, GeneralError, QString("DOM Event Exception %1").arg(e.code).local8Bit());
+    err.put(exec, "code", Number(e.code));
+    exec->setException(err);
+    return Undefined();
+  }
+  catch (...) {
+    kdError(6070) << "Unknown exception in DOMFunction::call()" << endl;
+    Object err = Error::create(exec, GeneralError, "Unknown exception");
+    exec->setException(err);
+    return Undefined();
+  }
+}
+
+typedef QPtrList<ScriptInterpreter> InterpreterList;
+static InterpreterList *interpreterList;
+
+ScriptInterpreter::ScriptInterpreter( const Object &global, khtml::ChildFrame* frame )
+  : Interpreter( global ), m_frame( frame ), m_domObjects(1021),
+    m_evt( 0L ), m_inlineCode(false), m_timerCallback(false)
+{
+#ifdef KJS_VERBOSE
+  kdDebug(6070) << "ScriptInterpreter::ScriptInterpreter " << this << " for part=" << m_frame << endl;
+#endif
+  if ( !interpreterList )
+    interpreterList = new InterpreterList;
+  interpreterList->append( this );
+}
+
+ScriptInterpreter::~ScriptInterpreter()
+{
+#ifdef KJS_VERBOSE
+  kdDebug(6070) << "ScriptInterpreter::~ScriptInterpreter " << this << " for part=" << m_frame << endl;
+#endif
+  assert( interpreterList && interpreterList->contains( this ) );
+  interpreterList->remove( this );
+  if ( interpreterList->isEmpty() ) {
+    delete interpreterList;
+    interpreterList = 0;
+  }
+}
+
+void ScriptInterpreter::forgetDOMObject( void* objectHandle )
+{
+  if( !interpreterList ) return;
+
+  QPtrListIterator<ScriptInterpreter> it( *interpreterList );
+  while ( it.current() ) {
+    (*it)->deleteDOMObject( objectHandle );
+    ++it;
+  }
+}
+
+void ScriptInterpreter::mark()
+{
+  Interpreter::mark();
+#ifdef KJS_VERBOSE
+  kdDebug(6070) << "ScriptInterpreter::mark " << this << " marking " << m_customizedDomObjects.count() << " DOM objects" << endl;
+#endif
+  QPtrDictIterator<void> it( m_customizedDomObjects );
+  for( ; it.current(); ++it )
+    static_cast<DOMObject*>(it.currentKey())->mark();
+}
+
+KParts::ReadOnlyPart* ScriptInterpreter::part() const {
+    return m_frame->m_part;
+}
+
+bool ScriptInterpreter::isWindowOpenAllowed() const
+{
+  if ( m_evt )
+  {
+    int id = m_evt->handle()->id();
+    bool eventOk = ( // mouse events
+      id == DOM::EventImpl::CLICK_EVENT ||
+      id == DOM::EventImpl::MOUSEUP_EVENT || id == DOM::EventImpl::MOUSEDOWN_EVENT ||
+      id == DOM::EventImpl::KHTML_ECMA_CLICK_EVENT || id == DOM::EventImpl::KHTML_ECMA_DBLCLICK_EVENT ||
+      // keyboard events
+      id == DOM::EventImpl::KEYDOWN_EVENT || id == DOM::EventImpl::KEYPRESS_EVENT ||
+      id == DOM::EventImpl::KEYUP_EVENT ||
+      // other accepted events
+      id == DOM::EventImpl::SELECT_EVENT || id == DOM::EventImpl::CHANGE_EVENT ||
+      id == DOM::EventImpl::SUBMIT_EVENT );
+    kdDebug(6070) << "Window.open, smart policy: id=" << id << " eventOk=" << eventOk << endl;
+    if (eventOk)
+      return true;
+  } else // no event
+  {
+    if ( m_inlineCode && !m_timerCallback )
+    {
+      // This is the <a href="javascript:window.open('...')> case -> we let it through
+      return true;
+      kdDebug(6070) << "Window.open, smart policy, no event, inline code -> ok" << endl;
+    }
+    else // This is the <script>window.open(...)</script> case or a timer callback -> block it
+      kdDebug(6070) << "Window.open, smart policy, no event, <script> tag -> refused" << endl;
+  }
+  return false;
+}
+
+
+UString::UString(const QString &d)
+{
+  unsigned int len = d.length();
+  UChar *dat = new UChar[len];
+  memcpy(dat, d.unicode(), len * sizeof(UChar));
+  rep = UString::Rep::create(dat, len);
+}
+
+UString::UString(const DOM::DOMString &d)
+{
+  if (d.isNull()) {
+    // we do a conversion here as null DOMStrings shouldn't cross
+    // the boundary to kjs. They should either be empty strings
+    // or explicitly converted to KJS::Null via getString().
+    attach(&Rep::empty);
+    return;
+  }
+
+  unsigned int len = d.length();
+  UChar *dat = new UChar[len];
+  memcpy(dat, d.unicode(), len * sizeof(UChar));
+  rep = UString::Rep::create(dat, len);
+}
+
+DOM::DOMString UString::string() const
+{
+  return DOM::DOMString((QChar*) data(), size());
+}
+
+QString UString::qstring() const
+{
+  return QString((QChar*) data(), size());
+}
+
+QConstString UString::qconststring() const
+{
+  return QConstString((QChar*) data(), size());
+}
+
+DOM::DOMString Identifier::string() const
+{
+  return DOM::DOMString((QChar*) data(), size());
+}
+
+QString Identifier::qstring() const
+{
+  return QString((QChar*) data(), size());
+}
+
+DOM::Node KJS::toNode(const Value& val)
+{
+  Object obj = Object::dynamicCast(val);
+  if (!obj.isValid() || !obj.inherits(&DOMNode::info))
+    return DOM::Node();
+
+  const DOMNode *dobj = static_cast<const DOMNode*>(obj.imp());
+  return dobj->toNode();
+}
+
+Value KJS::getString(DOM::DOMString s)
+{
+  if (s.isNull())
+    return Null();
+  else
+    return String(s);
+}
+
+QVariant KJS::ValueToVariant(ExecState* exec, const Value &val) {
+  QVariant res;
+  switch (val.type()) {
+  case BooleanType:
+    res = QVariant(val.toBoolean(exec), 0);
+    break;
+  case NumberType:
+    res = QVariant(val.toNumber(exec));
+    break;
+  case StringType:
+    res = QVariant(val.toString(exec).qstring());
+    break;
+  default:
+    // everything else will be 'invalid'
+    break;
+  }
+  return res;
+}
+
+class EmbedLiveConnect : public ObjectImp
+{
+  friend Value KJS::getLiveConnectValue(KParts::LiveConnectExtension *lc, const QString & name, const int type, const QString & value, int id);
+  EmbedLiveConnect(KParts::LiveConnectExtension *lc, UString n, KParts::LiveConnectExtension::Type t, int id);
+public:
+  ~EmbedLiveConnect();
+
+  virtual Value get(ExecState *, const Identifier & prop) const;
+  virtual void put(ExecState * exec, const Identifier &prop, const Value & value, int=None);
+  virtual Value call(ExecState * exec, Object &, const List &args);
+  virtual bool implementsCall() const;
+  virtual bool toBoolean(ExecState *) const;
+  virtual Value toPrimitive(ExecState *exec, Type) const;
+  virtual UString toString(ExecState *) const;
+
+private:
+  EmbedLiveConnect(const EmbedLiveConnect &);
+  QGuardedPtr<KParts::LiveConnectExtension> m_liveconnect;
+  UString name;
+  KParts::LiveConnectExtension::Type objtype;
+  unsigned long objid;
+};
+
+Value KJS::getLiveConnectValue(KParts::LiveConnectExtension *lc, const QString & name, const int type, const QString & value, int id)
+{
+  KParts::LiveConnectExtension::Type t=(KParts::LiveConnectExtension::Type)type;
+  switch(t) {
+    case KParts::LiveConnectExtension::TypeBool: {
+      bool ok;
+      int i = value.toInt(&ok);
+      if (ok)
+        return Boolean(i);
+      return Boolean(!strcasecmp(value.latin1(), "true"));
+    }
+    case KParts::LiveConnectExtension::TypeObject:
+    case KParts::LiveConnectExtension::TypeFunction:
+      return Value(new EmbedLiveConnect(lc, name, t, id));
+    case KParts::LiveConnectExtension::TypeNumber: {
+      bool ok;
+      int i = value.toInt(&ok);
+      if (ok)
+        return Number(i);
+      else
+        return Number(value.toDouble(&ok));
+    }
+    case KParts::LiveConnectExtension::TypeString:
+      return String(value);
+    case KParts::LiveConnectExtension::TypeVoid:
+    default:
+      return Undefined();
+  }
+}
+
+/* only with gcc > 3.4 KDE_NO_EXPORT */
+EmbedLiveConnect::EmbedLiveConnect(KParts::LiveConnectExtension *lc, UString n, KParts::LiveConnectExtension::Type t, int id)
+  : m_liveconnect (lc), name(n), objtype(t), objid(id)
+{}
+
+/* only with gcc > 3.4 KDE_NO_EXPORT */
+EmbedLiveConnect::~EmbedLiveConnect() {
+  if (m_liveconnect)
+    m_liveconnect->unregister(objid);
+}
+
+KDE_NO_EXPORT
+Value EmbedLiveConnect::get(ExecState *, const Identifier & prop) const
+{
+  if (m_liveconnect) {
+    KParts::LiveConnectExtension::Type rettype;
+    QString retval;
+    unsigned long retobjid;
+    if (m_liveconnect->get(objid, prop.qstring(), rettype, retobjid, retval))
+      return getLiveConnectValue(m_liveconnect, prop.qstring(), rettype, retval, retobjid);
+  }
+  return Undefined();
+}
+
+KDE_NO_EXPORT
+void EmbedLiveConnect::put(ExecState * exec, const Identifier &prop, const Value & value, int)
+{
+  if (m_liveconnect)
+    m_liveconnect->put(objid, prop.qstring(), value.toString(exec).qstring());
+}
+
+KDE_NO_EXPORT
+bool EmbedLiveConnect::implementsCall() const {
+  return objtype == KParts::LiveConnectExtension::TypeFunction;
+}
+
+KDE_NO_EXPORT
+Value EmbedLiveConnect::call(ExecState *exec, Object&, const List &args)
+{
+  if (m_liveconnect) {
+    QStringList qargs;
+    for (ListIterator i = args.begin(); i != args.end(); ++i)
+      qargs.append((*i).toString(exec).qstring());
+    KParts::LiveConnectExtension::Type rtype;
+    QString rval;
+    unsigned long robjid;
+    if (m_liveconnect->call(objid, name.qstring(), qargs, rtype, robjid, rval))
+      return getLiveConnectValue(m_liveconnect, name.qstring(), rtype, rval, robjid);
+  }
+  return Undefined();
+}
+
+KDE_NO_EXPORT
+bool EmbedLiveConnect::toBoolean(ExecState *) const {
+  return true;
+}
+
+KDE_NO_EXPORT
+Value EmbedLiveConnect::toPrimitive(ExecState *exec, Type) const {
+  return String(toString(exec));
+}
+
+KDE_NO_EXPORT
+UString EmbedLiveConnect::toString(ExecState *) const {
+  QString str;
+  const char *type = objtype == KParts::LiveConnectExtension::TypeFunction ? "Function" : "Object";
+  str.sprintf("[object %s ref=%d]", type, (int) objid);
+  return UString(str);
+}