WebCore/wml/WMLOnEventElement.cpp
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/wml/WMLOnEventElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,99 @@
+/**
+ * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
+ *
+ * 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 "config.h"
+
+#if ENABLE(WML)
+#include "WMLOnEventElement.h"
+
+#include "Attribute.h"
+#include "HTMLNames.h"
+#include "WMLErrorHandling.h"
+#include "WMLEventHandlingElement.h"
+#include "WMLIntrinsicEventHandler.h"
+#include "WMLNames.h"
+#include "WMLVariables.h"
+
+namespace WebCore {
+
+using namespace WMLNames;
+
+WMLOnEventElement::WMLOnEventElement(const QualifiedName& tagName, Document* doc)
+    : WMLElement(tagName, doc)
+    , m_type(WMLIntrinsicEventUnknown)
+{
+}
+
+void WMLOnEventElement::parseMappedAttribute(Attribute* attr)
+{
+    if (attr->name() == HTMLNames::typeAttr) {
+        String parsedValue = parseValueForbiddingVariableReferences(attr->value());
+        if (parsedValue.isEmpty())
+            return;
+
+        if (parsedValue == onenterforwardAttr)
+            m_type = WMLIntrinsicEventOnEnterForward;
+        else if (parsedValue == onenterbackwardAttr)
+            m_type = WMLIntrinsicEventOnEnterBackward;
+        else if (parsedValue == ontimerAttr)
+            m_type = WMLIntrinsicEventOnTimer;
+        else if (parsedValue == onpickAttr)
+            m_type = WMLIntrinsicEventOnPick;
+    } else
+        WMLElement::parseMappedAttribute(attr);
+}
+
+static inline WMLEventHandlingElement* eventHandlingParent(Node* parent)
+{
+    if (!parent || !parent->isWMLElement())
+        return 0;
+
+    return toWMLEventHandlingElement(static_cast<WMLElement*>(parent));
+}
+
+void WMLOnEventElement::registerTask(WMLTaskElement* task)
+{
+    if (m_type == WMLIntrinsicEventUnknown)
+        return;
+
+    // Register intrinsic event to the event handler of the owner of onevent element 
+    WMLEventHandlingElement* eventHandlingElement = eventHandlingParent(parentNode());
+    if (!eventHandlingElement)
+        return;
+
+    eventHandlingElement->createEventHandlerIfNeeded();
+
+    RefPtr<WMLIntrinsicEvent> event = WMLIntrinsicEvent::createWithTask(task);
+    if (!eventHandlingElement->eventHandler()->registerIntrinsicEvent(m_type, event))
+        reportWMLError(document(), WMLErrorConflictingEventBinding);
+}
+
+void WMLOnEventElement::deregisterTask(WMLTaskElement*)
+{
+    WMLEventHandlingElement* eventHandlingElement = eventHandlingParent(parentNode());
+    if (!eventHandlingElement)
+        return;
+
+    eventHandlingElement->eventHandler()->deregisterIntrinsicEvent(m_type);
+}
+
+}
+
+#endif