| /* |
| * Copyright (C) 2007 Apple Inc. All rights reserved. |
| * (C) 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef JSEventTargetBase_h |
| #define JSEventTargetBase_h |
| |
| #include "Document.h" |
| #include "Event.h" |
| #include "EventNames.h" |
| #include "JSEvent.h" |
| #include "kjs_events.h" |
| #include "kjs_window.h" |
| |
| namespace KJS { |
| |
| extern const struct HashTable JSEventTargetPropertiesTable; |
| extern const struct HashTable JSEventTargetPrototypeTable; |
| |
| } |
| |
| namespace WebCore { |
| |
| using namespace EventNames; |
| |
| class AtomicString; |
| class EventTarget; |
| |
| // Event target properties (shared across all JSEventTarget* classes) |
| struct JSEventTargetProperties { |
| enum { |
| AddEventListener, RemoveEventListener, DispatchEvent, |
| OnAbort, OnBlur, OnChange, OnClick, OnContextMenu, OnDblClick, OnError, |
| OnDragEnter, OnDragOver, OnDragLeave, OnDrop, OnDragStart, OnDrag, OnDragEnd, |
| OnBeforeCut, OnCut, OnBeforeCopy, OnCopy, OnBeforePaste, OnPaste, OnSelectStart, |
| OnFocus, OnInput, OnKeyDown, OnKeyPress, OnKeyUp, OnLoad, OnMouseDown, |
| OnMouseMove, OnMouseOut, OnMouseOver, OnMouseUp, OnMouseWheel, OnReset, |
| OnResize, OnScroll, OnSearch, OnSelect, OnSubmit, OnUnload |
| }; |
| }; |
| |
| // Helper function for the partial specializated template functions below |
| bool retrieveEventTargetAndCorrespondingNode(KJS::ExecState*, KJS::JSObject* thisObj, Node*&, EventTarget*&); |
| |
| // Functions |
| KJS::JSValue* jsEventTargetAddEventListener(KJS::ExecState*, KJS::JSObject*, const KJS::List&); |
| KJS::JSValue* jsEventTargetRemoveEventListener(KJS::ExecState*, KJS::JSObject*, const KJS::List&); |
| KJS::JSValue* jsEventTargetDispatchEvent(KJS::ExecState*, KJS::JSObject*, const KJS::List&); |
| |
| // Helper function for getValueProperty/putValueProperty |
| AtomicString eventNameForPropertyToken(int token); |
| |
| template<class JSEventTarget> |
| class JSEventTargetBase { |
| public: |
| JSEventTargetBase() { } |
| |
| KJS::JSValue* getValueProperty(const JSEventTarget* owner, KJS::ExecState* exec, int token) const |
| { |
| AtomicString eventName = eventNameForPropertyToken(token); |
| if (!eventName.isEmpty()) |
| return owner->getListener(eventName); |
| |
| return KJS::jsUndefined(); |
| } |
| |
| void putValueProperty(const JSEventTarget* owner, KJS::ExecState* exec, int token, KJS::JSValue* value, int attr) |
| { |
| AtomicString eventName = eventNameForPropertyToken(token); |
| if (!eventName.isEmpty()) |
| owner->setListener(exec, eventName, value); |
| } |
| |
| private: |
| friend class JSEventTargetNode; |
| friend class JSEventTargetSVGElementInstance; |
| |
| template<class JSParent> |
| bool getOwnPropertySlot(JSEventTarget* owner, KJS::ExecState* exec, const KJS::Identifier& propertyName, KJS::PropertySlot& slot) |
| { |
| return KJS::getStaticValueSlot<JSEventTarget, JSParent>(exec, &KJS::JSEventTargetPropertiesTable, owner, propertyName, slot); |
| } |
| |
| template<class JSParent> |
| void put(JSEventTarget* owner, KJS::ExecState* exec, const KJS::Identifier& propertyName, KJS::JSValue* value, int attr) |
| { |
| KJS::lookupPut<JSEventTarget, JSParent>(exec, propertyName, value, attr, &KJS::JSEventTargetPropertiesTable, owner); |
| } |
| }; |
| |
| // This class is a modified version of the code the KJS_DEFINE_PROTOTYPE_WITH_PROTOTYPE |
| // and KJS_IMPLEMENT_PROTOTYPE macros produce - the idea is that classes like JSEventTargetNode |
| // and JSEventTargetSVGElementInstance can share a single prototype just differing in the |
| // naming "EventTargetNodePrototype" vs "EventTargetSVGElementInstancePrototype". Above mentioned |
| // macros force the existance of several prototype tables for each of the classes - avoid that. |
| template<class JSEventTargetPrototypeParent, class JSEventTargetPrototypeInformation> |
| class JSEventTargetPrototype : public KJS::JSObject { |
| public: |
| JSEventTargetPrototype(KJS::ExecState* exec) |
| : KJS::JSObject(JSEventTargetPrototypeParent::self(exec)) |
| { |
| } |
| |
| static KJS::JSObject* self(KJS::ExecState* exec) |
| { |
| static KJS::Identifier* prototypeName = new KJS::Identifier(JSEventTargetPrototypeInformation::prototypeClassName()); |
| |
| KJS::JSGlobalObject* globalObject = exec->lexicalGlobalObject(); |
| if (KJS::JSValue* objectValue = globalObject->getDirect(*prototypeName)) { |
| ASSERT(objectValue->isObject()); |
| return static_cast<KJS::JSObject*>(objectValue); |
| } |
| |
| KJS::JSObject* newObject = new JSEventTargetPrototype<JSEventTargetPrototypeParent, JSEventTargetPrototypeInformation>(exec); |
| globalObject->putDirect(*prototypeName, newObject, KJS::Internal | KJS::DontEnum); |
| return newObject; |
| } |
| |
| bool getOwnPropertySlot(KJS::ExecState* exec, const KJS::Identifier& propertyName, KJS::PropertySlot& slot) |
| { |
| return KJS::getStaticFunctionSlot<KJS::JSObject>(exec, &KJS::JSEventTargetPrototypeTable, this, propertyName, slot); |
| } |
| |
| virtual const KJS::ClassInfo* classInfo() const |
| { |
| static const KJS::ClassInfo s_classInfo = { JSEventTargetPrototypeInformation::prototypeClassName(), 0, &KJS::JSEventTargetPrototypeTable }; |
| return &s_classInfo; |
| } |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // JSEventTargetBase_h |