Home | History | Annotate | Download | only in dom 
      1 /*
      2  * Copyright (C) 2012 Adobe Systems Incorporated. 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  *
      8  * 1. Redistributions of source code must retain the above
      9  *    copyright notice, this list of conditions and the following
     10  *    disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above
     12  *    copyright notice, this list of conditions and the following
     13  *    disclaimer in the documentation and/or other materials
     14  *    provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
     17  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
     20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
     21  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     22  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     23  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
     25  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
     26  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  * SUCH DAMAGE.
     28  */
     29 
     30 #ifndef NamedFlowCollection_h
     31 #define NamedFlowCollection_h
     32 
     33 #include "core/dom/ContextLifecycleObserver.h"
     34 #include "core/dom/NamedFlow.h"
     35 #include "wtf/Forward.h"
     36 #include "wtf/ListHashSet.h"
     37 #include "wtf/PassRefPtr.h"
     38 #include "wtf/RefCounted.h"
     39 #include "wtf/Vector.h"
     40 
     41 namespace WebCore {
     42 
     43 class Document;
     44 class DOMNamedFlowCollection;
     45 
     46 class NamedFlowCollection : public RefCounted<NamedFlowCollection>, public ContextLifecycleObserver {
     47 public:
     48     static PassRefPtr<NamedFlowCollection> create(Document* doc) { return adoptRef(new NamedFlowCollection(doc)); }
     49 
     50     Vector<RefPtr<NamedFlow> > namedFlows();
     51     NamedFlow* flowByName(const String&);
     52     PassRefPtr<NamedFlow> ensureFlowWithName(const String&);
     53 
     54     void discardNamedFlow(NamedFlow*);
     55 
     56     Document* document() const;
     57 
     58     virtual ~NamedFlowCollection() { }
     59 
     60     PassRefPtr<DOMNamedFlowCollection> createCSSOMSnapshot();
     61 
     62 private:
     63     struct NamedFlowHashFunctions;
     64     struct NamedFlowHashTranslator;
     65 
     66     typedef ListHashSet<NamedFlow*, 1, NamedFlowHashFunctions> NamedFlowSet;
     67 
     68     explicit NamedFlowCollection(Document*);
     69 
     70     NamedFlowSet m_namedFlows;
     71 };
     72 
     73 } // namespace WebCore
     74 
     75 #endif // NamedFlowCollection_h
     76