You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
412 lines
12 KiB
412 lines
12 KiB
// -*- c-basic-offset: 2 -*-
|
|
/*
|
|
* This file is part of the KDE libraries
|
|
* Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
|
|
* Copyright (C) 2001,2003 Peter Kelly (pmk@post.com)
|
|
* Copyright (C) 2001-2003 David Faure (faure@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; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#if defined(HAVE_VALGRIND_MEMCHECK_H) && !defined(NDEBUG)
|
|
|
|
#include <valgrind/memcheck.h>
|
|
#define VALGRIND_SUPPORT
|
|
|
|
#endif
|
|
|
|
|
|
#include "kjs_proxy.h"
|
|
|
|
#include "kjs_window.h"
|
|
#include "kjs_events.h"
|
|
#include "kjs_debugwin.h"
|
|
#include "xml/dom_nodeimpl.h"
|
|
#include "tdehtmlpart_p.h"
|
|
#include <tdehtml_part.h>
|
|
#include <tdeprotocolmanager.h>
|
|
#include <kdebug.h>
|
|
#include <tdemessagebox.h>
|
|
#include <tdelocale.h>
|
|
#include <unistd.h>
|
|
#include <signal.h>
|
|
#include <sys/time.h>
|
|
#include <assert.h>
|
|
#include <kjs/function.h>
|
|
|
|
using namespace KJS;
|
|
|
|
extern "C" {
|
|
KJSProxy *kjs_html_init(tdehtml::ChildFrame *childframe);
|
|
}
|
|
|
|
namespace KJS {
|
|
|
|
class KJSProxyImpl : public KJSProxy {
|
|
public:
|
|
KJSProxyImpl(tdehtml::ChildFrame *frame);
|
|
virtual ~KJSProxyImpl();
|
|
virtual TQVariant evaluate(TQString filename, int baseLine, const TQString &, const DOM::Node &n,
|
|
Completion *completion = 0);
|
|
virtual void clear();
|
|
virtual DOM::EventListener *createHTMLEventHandler(TQString sourceUrl, TQString name, TQString code, DOM::NodeImpl *node);
|
|
virtual void finishedWithEvent(const DOM::Event &event);
|
|
virtual KJS::Interpreter *interpreter();
|
|
|
|
virtual void setDebugEnabled(bool enabled);
|
|
virtual void showDebugWindow(bool show=true);
|
|
virtual bool paused() const;
|
|
virtual void dataReceived();
|
|
|
|
void initScript();
|
|
void applyUserAgent();
|
|
|
|
private:
|
|
KJS::ScriptInterpreter* m_script;
|
|
bool m_debugEnabled;
|
|
#ifndef NDEBUG
|
|
static int s_count;
|
|
#endif
|
|
};
|
|
|
|
} // namespace KJS
|
|
|
|
#ifndef NDEBUG
|
|
int KJSProxyImpl::s_count = 0;
|
|
#endif
|
|
|
|
KJSProxyImpl::KJSProxyImpl(tdehtml::ChildFrame *frame)
|
|
{
|
|
m_script = 0;
|
|
m_frame = frame;
|
|
m_debugEnabled = false;
|
|
#ifndef NDEBUG
|
|
s_count++;
|
|
#endif
|
|
}
|
|
|
|
KJSProxyImpl::~KJSProxyImpl()
|
|
{
|
|
if ( m_script ) {
|
|
//kdDebug() << "KJSProxyImpl::~KJSProxyImpl clearing global object " << m_script->globalObject().imp() << endl;
|
|
// This allows to delete the global-object properties, like all the protos
|
|
static_cast<ObjectImp*>(m_script->globalObject().imp())->deleteAllProperties( m_script->globalExec() );
|
|
//kdDebug() << "KJSProxyImpl::~KJSProxyImpl garbage collecting" << endl;
|
|
while (KJS::Interpreter::collect())
|
|
;
|
|
//kdDebug() << "KJSProxyImpl::~KJSProxyImpl deleting interpreter " << m_script << endl;
|
|
delete m_script;
|
|
//kdDebug() << "KJSProxyImpl::~KJSProxyImpl garbage collecting again" << endl;
|
|
// Garbage collect - as many times as necessary
|
|
// (we could delete an object which was holding another object, so
|
|
// the deref() will happen too late for deleting the impl of the 2nd object).
|
|
while (KJS::Interpreter::collect())
|
|
;
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
s_count--;
|
|
// If it was the last interpreter, we should have nothing left
|
|
#ifdef KJS_DEBUG_MEM
|
|
if ( s_count == 0 )
|
|
Interpreter::finalCheck();
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
TQVariant KJSProxyImpl::evaluate(TQString filename, int baseLine,
|
|
const TQString&str, const DOM::Node &n, Completion *completion) {
|
|
// evaluate code. Returns the JS return value or an invalid QVariant
|
|
// if there was none, an error occurred or the type couldn't be converted.
|
|
|
|
initScript();
|
|
// inlineCode is true for <a href="javascript:doSomething()">
|
|
// and false for <script>doSomething()</script>. Check if it has the
|
|
// expected value in all cases.
|
|
// See smart window.open policy for where this is used.
|
|
bool inlineCode = filename.isNull();
|
|
//kdDebug(6070) << "KJSProxyImpl::evaluate inlineCode=" << inlineCode << endl;
|
|
|
|
#ifdef KJS_DEBUGGER
|
|
if (inlineCode)
|
|
filename = "(unknown file)";
|
|
if (KJSDebugWin::debugWindow()) {
|
|
KJSDebugWin::debugWindow()->attach(m_script);
|
|
KJSDebugWin::debugWindow()->setNextSourceInfo(filename,baseLine);
|
|
// KJSDebugWin::debugWindow()->setMode(KJSDebugWin::Step);
|
|
}
|
|
#else
|
|
Q_UNUSED(baseLine);
|
|
#endif
|
|
|
|
m_script->setInlineCode(inlineCode);
|
|
Window* window = Window::retrieveWindow( m_frame->m_part );
|
|
KJS::Value thisNode = n.isNull() ? Window::retrieve( m_frame->m_part ) : getDOMNode(m_script->globalExec(),n);
|
|
|
|
UString code( str );
|
|
|
|
KJSCPUGuard guard;
|
|
guard.start();
|
|
Completion comp = m_script->evaluate(code, thisNode);
|
|
guard.stop();
|
|
|
|
bool success = ( comp.complType() == Normal ) || ( comp.complType() == ReturnValue );
|
|
|
|
if (completion)
|
|
*completion = comp;
|
|
|
|
#ifdef KJS_DEBUGGER
|
|
// KJSDebugWin::debugWindow()->setCode(TQString::null);
|
|
#endif
|
|
|
|
window->afterScriptExecution();
|
|
|
|
// let's try to convert the return value
|
|
if (success && comp.value().isValid())
|
|
return ValueToVariant( m_script->globalExec(), comp.value());
|
|
else
|
|
{
|
|
if ( comp.complType() == Throw )
|
|
{
|
|
UString msg = comp.value().toString(m_script->globalExec());
|
|
kdDebug(6070) << "WARNING: Script threw exception: " << msg.qstring() << endl;
|
|
}
|
|
return TQVariant();
|
|
}
|
|
}
|
|
|
|
// Implementation of the debug() function
|
|
class TestFunctionImp : public ObjectImp {
|
|
public:
|
|
TestFunctionImp() : ObjectImp() {}
|
|
virtual bool implementsCall() const { return true; }
|
|
virtual Value call(ExecState *exec, Object &thisObj, const List &args);
|
|
};
|
|
|
|
Value TestFunctionImp::call(ExecState *exec, Object &/*thisObj*/, const List &args)
|
|
{
|
|
fprintf(stderr,"--> %s\n",args[0].toString(exec).ascii());
|
|
return Undefined();
|
|
}
|
|
|
|
void KJSProxyImpl::clear() {
|
|
// clear resources allocated by the interpreter, and make it ready to be used by another page
|
|
// We have to keep it, so that the Window object for the part remains the same.
|
|
// (we used to delete and re-create it, previously)
|
|
if (m_script) {
|
|
#ifdef KJS_DEBUGGER
|
|
// ###
|
|
KJSDebugWin *debugWin = KJSDebugWin::debugWindow();
|
|
if (debugWin) {
|
|
if (debugWin->getExecState() &&
|
|
debugWin->getExecState()->interpreter() == m_script)
|
|
debugWin->slotStop();
|
|
debugWin->clearInterpreter(m_script);
|
|
}
|
|
#endif
|
|
m_script->clear();
|
|
|
|
Window *win = static_cast<Window *>(m_script->globalObject().imp());
|
|
if (win) {
|
|
win->clear( m_script->globalExec() );
|
|
// re-add "debug", clear() removed it
|
|
m_script->globalObject().put(m_script->globalExec(),
|
|
"debug", Value(new TestFunctionImp()), Internal);
|
|
if ( win->part() )
|
|
applyUserAgent();
|
|
}
|
|
|
|
// Really delete everything that can be, so that the DOM nodes get deref'ed
|
|
//kdDebug() << k_funcinfo << "all done -> collecting" << endl;
|
|
while (KJS::Interpreter::collect())
|
|
;
|
|
}
|
|
}
|
|
|
|
DOM::EventListener *KJSProxyImpl::createHTMLEventHandler(TQString sourceUrl, TQString name, TQString code, DOM::NodeImpl *node)
|
|
{
|
|
initScript();
|
|
|
|
#ifdef KJS_DEBUGGER
|
|
if (KJSDebugWin::debugWindow()) {
|
|
KJSDebugWin::debugWindow()->attach(m_script);
|
|
KJSDebugWin::debugWindow()->setNextSourceInfo(sourceUrl,m_handlerLineno);
|
|
}
|
|
#else
|
|
Q_UNUSED(sourceUrl);
|
|
#endif
|
|
|
|
return KJS::Window::retrieveWindow(m_frame->m_part)->getJSLazyEventListener(code,name,node);
|
|
}
|
|
|
|
void KJSProxyImpl::finishedWithEvent(const DOM::Event &event)
|
|
{
|
|
// This is called when the DOM implementation has finished with a particular event. This
|
|
// is the case in sitations where an event has been created just for temporary usage,
|
|
// e.g. an image load or mouse move. Once the event has been dispatched, it is forgotten
|
|
// by the DOM implementation and so does not need to be cached still by the interpreter
|
|
ScriptInterpreter::forgetDOMObject(event.handle());
|
|
}
|
|
|
|
KJS::Interpreter *KJSProxyImpl::interpreter()
|
|
{
|
|
if (!m_script)
|
|
initScript();
|
|
return m_script;
|
|
}
|
|
|
|
void KJSProxyImpl::setDebugEnabled(bool enabled)
|
|
{
|
|
#ifdef KJS_DEBUGGER
|
|
m_debugEnabled = enabled;
|
|
//if (m_script)
|
|
// m_script->setDebuggingEnabled(enabled);
|
|
// NOTE: this is consistent across all KJSProxyImpl instances, as we only
|
|
// ever have 1 debug window
|
|
if (!enabled && KJSDebugWin::debugWindow()) {
|
|
KJSDebugWin::destroyInstance();
|
|
}
|
|
else if (enabled && !KJSDebugWin::debugWindow()) {
|
|
KJSDebugWin::createInstance();
|
|
initScript();
|
|
KJSDebugWin::debugWindow()->attach(m_script);
|
|
}
|
|
#else
|
|
Q_UNUSED(enabled);
|
|
#endif
|
|
}
|
|
|
|
void KJSProxyImpl::showDebugWindow(bool /*show*/)
|
|
{
|
|
#ifdef KJS_DEBUGGER
|
|
if (KJSDebugWin::debugWindow())
|
|
KJSDebugWin::debugWindow()->show();
|
|
#else
|
|
//Q_UNUSED(show);
|
|
#endif
|
|
}
|
|
|
|
bool KJSProxyImpl::paused() const
|
|
{
|
|
#ifdef KJS_DEBUGGER
|
|
if (KJSDebugWin::debugWindow())
|
|
return KJSDebugWin::debugWindow()->inSession();
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
void KJSProxyImpl::dataReceived()
|
|
{
|
|
#ifdef KJS_DEBUGGER
|
|
if (KJSDebugWin::debugWindow() && m_frame->m_part)
|
|
KJSDebugWin::debugWindow()->sourceChanged(m_script,m_frame->m_part->url().url());
|
|
#endif
|
|
}
|
|
|
|
void KJSProxyImpl::initScript()
|
|
{
|
|
if (m_script)
|
|
return;
|
|
|
|
// Build the global object - which is a Window instance
|
|
Object globalObject( new Window(m_frame) );
|
|
|
|
// Create a KJS interpreter for this part
|
|
m_script = new KJS::ScriptInterpreter(globalObject, m_frame);
|
|
static_cast<ObjectImp*>(globalObject.imp())->setPrototype(m_script->builtinObjectPrototype());
|
|
|
|
#ifdef KJS_DEBUGGER
|
|
//m_script->setDebuggingEnabled(m_debugEnabled);
|
|
#endif
|
|
//m_script->enableDebug();
|
|
globalObject.put(m_script->globalExec(),
|
|
"debug", Value(new TestFunctionImp()), Internal);
|
|
applyUserAgent();
|
|
}
|
|
|
|
void KJSProxyImpl::applyUserAgent()
|
|
{
|
|
assert( m_script );
|
|
TQString host = m_frame->m_part->url().isLocalFile() ? "localhost" : m_frame->m_part->url().host();
|
|
TQString userAgent = KProtocolManager::userAgentForHost(host);
|
|
if (userAgent.find(TQString::fromLatin1("Microsoft")) >= 0 ||
|
|
userAgent.find(TQString::fromLatin1("MSIE")) >= 0)
|
|
{
|
|
m_script->setCompatMode(Interpreter::IECompat);
|
|
#ifdef KJS_VERBOSE
|
|
kdDebug() << "Setting IE compat mode" << endl;
|
|
#endif
|
|
}
|
|
else
|
|
// If we find "Mozilla" but not "(compatible, ...)" we are a real Netscape
|
|
if (userAgent.find(TQString::fromLatin1("Mozilla")) >= 0 &&
|
|
userAgent.find(TQString::fromLatin1("compatible")) == -1 &&
|
|
userAgent.find(TQString::fromLatin1("TDEHTML")) == -1)
|
|
{
|
|
m_script->setCompatMode(Interpreter::NetscapeCompat);
|
|
#ifdef KJS_VERBOSE
|
|
kdDebug() << "Setting NS compat mode" << endl;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
// Helper method, so that all classes which need jScript() don't need to be added
|
|
// as friend to TDEHTMLPart
|
|
KJSProxy * KJSProxy::proxy( TDEHTMLPart *part )
|
|
{
|
|
return part->jScript();
|
|
}
|
|
|
|
// initialize HTML module
|
|
KJSProxy *kjs_html_init(tdehtml::ChildFrame *childframe)
|
|
{
|
|
return new KJSProxyImpl(childframe);
|
|
}
|
|
|
|
void KJSCPUGuard::start(unsigned int ms, unsigned int i_ms)
|
|
{
|
|
#ifdef VALGRIND_SUPPORT
|
|
if (RUNNING_ON_VALGRIND) {
|
|
ms *= 50;
|
|
i_ms *= 50;
|
|
}
|
|
#endif
|
|
|
|
oldAlarmHandler = signal(SIGVTALRM, alarmHandler);
|
|
itimerval tv = {
|
|
{ i_ms / 1000, (i_ms % 1000) * 1000 },
|
|
{ ms / 1000, (ms % 1000) * 1000 }
|
|
};
|
|
setitimer(ITIMER_VIRTUAL, &tv, &oldtv);
|
|
}
|
|
|
|
void KJSCPUGuard::stop()
|
|
{
|
|
setitimer(ITIMER_VIRTUAL, &oldtv, 0L);
|
|
signal(SIGVTALRM, oldAlarmHandler);
|
|
}
|
|
|
|
bool KJSCPUGuard::confirmTerminate() {
|
|
kdDebug(6070) << "alarmhandler" << endl;
|
|
return KMessageBox::warningYesNo(0L, i18n("A script on this page is causing TDEHTML to freeze. If it continues to run, other applications may become less responsive.\nDo you want to abort the script?"), i18n("JavaScript"), i18n("&Abort"), KStdGuiItem::cont(), "kjscupguard_alarmhandler") == KMessageBox::Yes;
|
|
}
|
|
|
|
void KJSCPUGuard::alarmHandler(int) {
|
|
ExecState::requestTerminate();
|
|
ExecState::confirmTerminate = KJSCPUGuard::confirmTerminate;
|
|
}
|