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/kdebindings@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 126 insertions, 0 deletions

diff --git a/kjsembed/jsobjecteventproxy.cpp b/kjsembed/jsobjecteventproxy.cpp
new file mode 100644
index 00000000..ad29608f
--- /dev/null
+++ b/kjsembed/jsobjecteventproxy.cpp
@@ -0,0 +1,126 @@
+/*
+ *  Copyright (C) 2003-2004, 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 <qvariant.h>
+#include "global.h"
+
+#include "jsfactory.h"
+#include "jseventmapper.h"
+#include "jsobjectproxy.h"
+#include "kjsembedpart.h"
+#include "jsbinding.h"
+
+#include "jsobjecteventproxy.h"
+#ifndef QT_ONLY
+#include "jsobjecteventproxy.moc"
+#endif // QT_ONLY
+
+namespace KJSEmbed {
+
+// We'll need to increase this if we need to support any custom events
+static const QEvent::Type QEVENT_TYPE_MAX = QEvent::TabletRelease;
+
+JSObjectEventProxy::JSObjectEventProxy( JSObjectProxy *parent, const char *name )
+    : QObject( parent->object(), name ? name : "jsobjecteventproxy" ),
+      proxy( parent ), eventMask( QEVENT_TYPE_MAX ), refcount(0)
+{
+    eventMask.fill( false );
+}
+
+JSObjectEventProxy::~JSObjectEventProxy()
+{
+}
+
+bool JSObjectEventProxy::isFiltered( QEvent::Type t ) const
+{
+    return eventMask.testBit( t );
+}
+
+void JSObjectEventProxy::addFilter( QEvent::Type t )
+{
+    if ( !refcount )
+	proxy->object()->installEventFilter( this );
+
+    if ( !eventMask.testBit(t) ) {
+	refcount++;
+	eventMask.setBit( t );
+    }
+
+    kdDebug(80001) << "JSObjectEventProxy::addFilter done" << endl;
+}
+
+void JSObjectEventProxy::removeFilter( QEvent::Type t )
+{
+    eventMask.clearBit( t );
+    refcount--;
+    if ( !refcount ) {
+	proxy->object()->removeEventFilter( this );
+	deleteLater();
+    }
+
+    kdDebug(80001) << "JSObjectEventProxy::removeFilter done" << endl;
+}
+
+bool JSObjectEventProxy::eventFilter( QObject * /*watched*/, QEvent *e )
+{
+    if ( isFiltered(e->type()) )
+	callHandler( e );
+
+    return false;
+}
+
+KJS::Value JSObjectEventProxy::callHandler( QEvent *e )
+{
+// Be careful enabling this as if there are a lot of events then the event loop times
+// out and the app crashes with 'Alarm Clock'.
+//    kdDebug(80001) << "JSObjectEventProxy::callHandler() event type " << e->type() << endl;
+
+    KJS::ExecState *exec = proxy->interpreter()->globalExec();
+    KJS::Identifier *id = proxy->part()->factory()->eventMapper()->findEventHandler( e->type() );
+   
+    KJS::Object jsobj( proxy );
+    KJS::Object fun = jsobj.get(exec, *id ).toObject( exec );
+
+    if ( !fun.implementsCall() ) {
+      QString msg = i18n( "Bad event handler: Object %1 Identifier %2 Method %3 Type: %4." )
+	  .arg(jsobj.className().ascii()).arg(id->ascii()).arg(fun.className().ascii()).arg(e->type());
+      return throwError(exec, msg, KJS::TypeError );
+    }
+
+    // Process args
+    KJS::List args;
+    KJS::Object obj = proxy->part()->factory()->createProxy( exec, e, proxy );
+    args.append( obj );
+
+    // Call handler
+    KJS::Value result = fun.call( exec, jsobj, args );
+
+    if ( exec->hadException() ) {
+	kdWarning( 80001 ) << "Exception in event handler '" << id->qstring() << "', "
+			   << exec->exception().toString(exec).qstring() << endl;
+
+	exec->clearException();
+    }
+
+    return result;
+}
+
+} // KJSEmbed
+
+