File indexing completed on 2024-04-28 15:23:09

0001 /*
0002  * This includes methods for marshalling/demarshalling data for
0003  * cross-context messaging
0004  *
0005  *  Copyright (C) 2010 Maksim Orlovich <maksim@kde.org>
0006  *
0007  *  This library is free software; you can redistribute it and/or
0008  *  modify it under the terms of the GNU Lesser General Public
0009  *  License as published by the Free Software Foundation; either
0010  *  version 2 of the License, or (at your option) any later version.
0011  *
0012  *  This library is distributed in the hope that it will be useful,
0013  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
0014  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0015  *  Lesser General Public License for more details.
0016  *
0017  *  You should have received a copy of the GNU Lesser General Public
0018  *  License along with this library; if not, write to the Free Software
0019  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
0020  */
0021 #include "kjs_binding.h"
0022 #include "kjs_window.h"
0023 #include "xml/dom2_eventsimpl.h"
0024 
0025 class KHTMLPart;
0026 
0027 #include <QWeakPointer>
0028 
0029 namespace KJS
0030 {
0031 
0032 /*
0033  Deep copy of data; no guarantees are made about the domain of the result;
0034  just that it's distinct from the original. You're expected to use
0035  encapsulateMessageEventData on the result to associate it with the
0036  appropriate security domain.
0037 */
0038 JSValue *cloneData(ExecState *exec, JSValue *data);
0039 
0040 /*
0041  Note: unlike other JS->DOM routines, this method is expected to cross security
0042  domains; hence besides current ExecState (needed to set exceptions) it needs
0043  the *destination* domain, to make sure everything created uses prototypes
0044  from it. It can also return 0 if the serialization failed; in which case an
0045  exception will also be set.
0046 */
0047 DOM::MessageEventImpl::Data *encapsulateMessageEventData(ExecState *exec, Interpreter *ctx, JSValue *data);
0048 
0049 /*
0050  Warning: Unlike the above, this accessor isn't expected to cross boundaries,
0051  so it doesn't do any deep copying or the like
0052  */
0053 JSValue *getMessageEventData(ExecState *exec, DOM::MessageEventImpl::Data *data);
0054 
0055 /*
0056  Actually executes Window::PostMessage with given arguments;
0057  targetOrigin is expected to have been sanity-checked already
0058 */
0059 class DelayedPostMessage: public Window::DelayedAction
0060 {
0061 public:
0062     DelayedPostMessage(KHTMLPart *source, const QString &_sourceOrigin, const QString &_targetOrigin, JSValue *_payload);
0063 
0064     void mark() override;
0065     bool execute(Window *) override;
0066 private:
0067     QString  sourceOrigin;
0068     QString  targetOrigin;
0069     ProtectedPtr<JSValue> payload;
0070     QWeakPointer<KHTMLPart> source;
0071 };
0072 
0073 }
0074