third_party/WebKit/Source/core/dom/custom/CustomElementCallbackInvocation.cpp

   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
   6  * are met:
   7  *
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer
  12  *    in the documentation and/or other materials provided with the
  13  *    distribution.
  14  * 3. Neither the name of Google Inc. nor the names of its contributors
  15  *    may be used to endorse or promote products derived from this
  16  *    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 #include "config.h"
  32 #include "core/dom/custom/CustomElementCallbackInvocation.h"
  33
  34 #include "core/dom/Document.h"
  35 #include "core/dom/Element.h"
  36 #include "core/dom/custom/CustomElementScheduler.h"
  37
  38 namespace blink {
  39
  40 class AttachedDetachedInvocation final : public CustomElementCallbackInvocation {
  41 public:
  42     AttachedDetachedInvocation(PassRefPtrWillBeRawPtr<CustomElementLifecycleCallbacks>, CustomElementLifecycleCallbacks::CallbackType which);
  43
  44 private:
  45     void dispatch(Element*) override;
  46
  47     CustomElementLifecycleCallbacks::CallbackType m_which;
  48 };
  49
  50 AttachedDetachedInvocation::AttachedDetachedInvocation(PassRefPtrWillBeRawPtr<CustomElementLifecycleCallbacks> callbacks, CustomElementLifecycleCallbacks::CallbackType which)
  51     : CustomElementCallbackInvocation(callbacks)
  52     , m_which(which)
  53 {
  54     ASSERT(m_which == CustomElementLifecycleCallbacks::AttachedCallback || m_which == CustomElementLifecycleCallbacks::DetachedCallback);
  55 }
  56
  57 void AttachedDetachedInvocation::dispatch(Element* element)
  58 {
  59     switch (m_which) {
  60     case CustomElementLifecycleCallbacks::AttachedCallback:
  61         callbacks()->attached(element);
  62         break;
  63     case CustomElementLifecycleCallbacks::DetachedCallback:
  64         callbacks()->detached(element);
  65         break;
  66     default:
  67         ASSERT_NOT_REACHED();
  68     }
  69 }
  70
  71 class AttributeChangedInvocation final : public CustomElementCallbackInvocation {
  72 public:
  73     AttributeChangedInvocation(PassRefPtrWillBeRawPtr<CustomElementLifecycleCallbacks>, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue);
  74
  75 private:
  76     void dispatch(Element*) override;
  77
  78     AtomicString m_name;
  79     AtomicString m_oldValue;
  80     AtomicString m_newValue;
  81 };
  82
  83 AttributeChangedInvocation::AttributeChangedInvocation(PassRefPtrWillBeRawPtr<CustomElementLifecycleCallbacks> callbacks, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue)
  84     : CustomElementCallbackInvocation(callbacks)
  85     , m_name(name)
  86     , m_oldValue(oldValue)
  87     , m_newValue(newValue)
  88 {
  89 }
  90
  91 void AttributeChangedInvocation::dispatch(Element* element)
  92 {
  93     callbacks()->attributeChanged(element, m_name, m_oldValue, m_newValue);
  94 }
  95
  96 class CreatedInvocation final : public CustomElementCallbackInvocation {
  97 public:
  98     explicit CreatedInvocation(PassRefPtrWillBeRawPtr<CustomElementLifecycleCallbacks> callbacks)
  99         : CustomElementCallbackInvocation(callbacks)
 100     {
 101     }
 102
 103 private:
 104     void dispatch(Element*) override;
 105     bool isCreatedCallback() const override { return true; }
 106 };
 107
 108 void CreatedInvocation::dispatch(Element* element)
 109 {
 110     if (element->inDocument() && element->document().domWindow())
 111         CustomElementScheduler::scheduleCallback(callbacks(), element, CustomElementLifecycleCallbacks::AttachedCallback);
 112     callbacks()->created(element);
 113 }
 114
 115 PassOwnPtrWillBeRawPtr<CustomElementCallbackInvocation> CustomElementCallbackInvocation::createInvocation(PassRefPtrWillBeRawPtr<CustomElementLifecycleCallbacks> callbacks, CustomElementLifecycleCallbacks::CallbackType which)
 116 {
 117     switch (which) {
 118     case CustomElementLifecycleCallbacks::CreatedCallback:
 119         return adoptPtrWillBeNoop(new CreatedInvocation(callbacks));
 120
 121     case CustomElementLifecycleCallbacks::AttachedCallback:
 122     case CustomElementLifecycleCallbacks::DetachedCallback:
 123         return adoptPtrWillBeNoop(new AttachedDetachedInvocation(callbacks, which));
 124     default:
 125         ASSERT_NOT_REACHED();
 126         return nullptr;
 127     }
 128 }
 129
 130 PassOwnPtrWillBeRawPtr<CustomElementCallbackInvocation> CustomElementCallbackInvocation::createAttributeChangedInvocation(PassRefPtrWillBeRawPtr<CustomElementLifecycleCallbacks> callbacks, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue)
 131 {
 132     return adoptPtrWillBeNoop(new AttributeChangedInvocation(callbacks, name, oldValue, newValue));
 133 }
 134
 135 DEFINE_TRACE(CustomElementCallbackInvocation)
 136 {
 137     visitor->trace(m_callbacks);
 138     CustomElementProcessingStep::trace(visitor);
 139 }
 140
 141 } // namespace blink