third_party/WebKit/Source/core/dom/custom/CustomElementUpgradeCandidateMap.h

   1 /*
   2  * Copyright (C) 2013 Google 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 are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef CustomElementUpgradeCandidateMap_h
  32 #define CustomElementUpgradeCandidateMap_h
  33
  34 #include "core/dom/custom/CustomElementDescriptor.h"
  35 #include "core/dom/custom/CustomElementDescriptorHash.h"
  36 #include "core/dom/custom/CustomElementObserver.h"
  37 #include "wtf/HashMap.h"
  38 #include "wtf/LinkedHashSet.h"
  39 #include "wtf/Noncopyable.h"
  40
  41 namespace blink {
  42
  43 class CustomElementUpgradeCandidateMap final : public CustomElementObserver {
  44     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(CustomElementUpgradeCandidateMap);
  45     WTF_MAKE_NONCOPYABLE(CustomElementUpgradeCandidateMap);
  46 public:
  47     static PassOwnPtrWillBeRawPtr<CustomElementUpgradeCandidateMap> create();
  48     ~CustomElementUpgradeCandidateMap() override;
  49
  50     // API for CustomElementRegistrationContext to save and take candidates
  51
  52     typedef WillBeHeapLinkedHashSet<RawPtrWillBeWeakMember<Element>> ElementSet;
  53
  54     void add(const CustomElementDescriptor&, Element*);
  55     PassOwnPtrWillBeRawPtr<ElementSet> takeUpgradeCandidatesFor(const CustomElementDescriptor&);
  56
  57     DECLARE_VIRTUAL_TRACE();
  58
  59 private:
  60     CustomElementUpgradeCandidateMap() { }
  61
  62     void elementWasDestroyed(Element*) override;
  63
  64     typedef WillBeHeapHashMap<RawPtrWillBeWeakMember<Element>, CustomElementDescriptor> UpgradeCandidateMap;
  65     UpgradeCandidateMap m_upgradeCandidates;
  66
  67     typedef WillBeHeapHashMap<CustomElementDescriptor, OwnPtrWillBeMember<ElementSet>> UnresolvedDefinitionMap;
  68     UnresolvedDefinitionMap m_unresolvedDefinitions;
  69 };
  70
  71 } // namespace blink
  72
  73 #endif // CustomElementUpgradeCandidateMap_h