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      1 /*
      2  * Copyright (C) 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef DOMStringMap_h
     27 #define DOMStringMap_h
     28 
     29 #include "bindings/core/v8/ExceptionState.h"
     30 #include "bindings/core/v8/ScriptWrappable.h"
     31 #include "bindings/core/v8/V8Binding.h"
     32 #include "platform/heap/Handle.h"
     33 #include "wtf/Noncopyable.h"
     34 #include "wtf/Vector.h"
     35 #include "wtf/text/WTFString.h"
     36 
     37 namespace blink {
     38 
     39 class Element;
     40 
     41 class DOMStringMap : public NoBaseWillBeGarbageCollected<DOMStringMap>, public ScriptWrappable {
     42     DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(DOMStringMap);
     43     DEFINE_WRAPPERTYPEINFO();
     44     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
     45     WTF_MAKE_NONCOPYABLE(DOMStringMap);
     46 public:
     47 #if !ENABLE(OILPAN)
     48     virtual void ref() = 0;
     49     virtual void deref() = 0;
     50 #endif
     51 
     52     virtual void getNames(Vector<String>&) = 0;
     53     virtual String item(const String& name) = 0;
     54     virtual bool contains(const String& name) = 0;
     55     virtual void setItem(const String& name, const String& value, ExceptionState&) = 0;
     56     virtual bool deleteItem(const String& name) = 0;
     57     bool anonymousNamedSetter(const String& name, const String& value, ExceptionState& exceptionState)
     58     {
     59         setItem(name, value, exceptionState);
     60         return true;
     61     }
     62     DeleteResult anonymousNamedDeleter(const AtomicString& name)
     63     {
     64         bool knownProperty = deleteItem(name);
     65         return knownProperty ? DeleteSuccess : DeleteUnknownProperty;
     66     }
     67     void namedPropertyEnumerator(Vector<String>& names, ExceptionState&)
     68     {
     69         getNames(names);
     70     }
     71     bool namedPropertyQuery(const AtomicString&, ExceptionState&);
     72 
     73     String anonymousIndexedGetter(uint32_t index)
     74     {
     75         return item(String::number(index));
     76     }
     77     bool anonymousIndexedSetter(uint32_t index, const String& value, ExceptionState& exceptionState)
     78     {
     79         return anonymousNamedSetter(String::number(index), value, exceptionState);
     80     }
     81     DeleteResult anonymousIndexedDeleter(uint32_t index)
     82     {
     83         return anonymousNamedDeleter(AtomicString::number(index));
     84     }
     85 
     86     virtual Element* element() = 0;
     87 
     88     virtual void trace(Visitor*) { }
     89 
     90 protected:
     91     DOMStringMap() { }
     92 };
     93 
     94 } // namespace blink
     95 
     96 #endif // DOMStringMap_h
     97