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

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  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 : public CustomElementCallbackInvocation {
  41 public:
  42     AttachedDetachedInvocation(PassRefPtr<CustomElementLifecycleCallbacks>, CustomElementLifecycleCallbacks::CallbackType which);
  43
  44 private:
  45     virtual void dispatch(Element*) OVERRIDE;
  46
  47     CustomElementLifecycleCallbacks::CallbackType m_which;
  48 };
  49
  50 AttachedDetachedInvocation::AttachedDetachedInvocation(PassRefPtr<CustomElementLifecycleCallbacks> callbacks, CustomElementLifecycleCallbacks::CallbackType which)
  51     : CustomElementCallbackInvocation(callbacks)
  52     , m_which(which)
  53 {
  54     ASSERT(m_which == CustomElementLifecycleCallbacks::Attached || m_which == CustomElementLifecycleCallbacks::Detached);
  55 }
  56
  57 void AttachedDetachedInvocation::dispatch(Element* element)
  58 {
  59     switch (m_which) {
  60     case CustomElementLifecycleCallbacks::Attached:
  61         callbacks()->attached(element);
  62         break;
  63     case CustomElementLifecycleCallbacks::Detached:
  64         callbacks()->detached(element);
  65         break;
  66     default:
  67         ASSERT_NOT_REACHED();
  68     }
  69 }
  70
  71 class AttributeChangedInvocation : public CustomElementCallbackInvocation {
  72 public:
  73     AttributeChangedInvocation(PassRefPtr<CustomElementLifecycleCallbacks>, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue);
  74
  75 private:
  76     virtual void dispatch(Element*) OVERRIDE;
  77
  78     AtomicString m_name;
  79     AtomicString m_oldValue;
  80     AtomicString m_newValue;
  81 };
  82
  83 AttributeChangedInvocation::AttributeChangedInvocation(PassRefPtr<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 : public CustomElementCallbackInvocation {
  97 public:
  98     CreatedInvocation(PassRefPtr<CustomElementLifecycleCallbacks> callbacks)
  99         : CustomElementCallbackInvocation(callbacks)
 100     {
 101     }
 102
 103 private:
 104     virtual void dispatch(Element*) OVERRIDE;
 105     virtual bool isCreated() 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::Attached);
 112     callbacks()->created(element);
 113 }
 114
 115 PassOwnPtr<CustomElementCallbackInvocation> CustomElementCallbackInvocation::createInvocation(PassRefPtr<CustomElementLifecycleCallbacks> callbacks, CustomElementLifecycleCallbacks::CallbackType which)
 116 {
 117     switch (which) {
 118     case CustomElementLifecycleCallbacks::Created:
 119         return adoptPtr(new CreatedInvocation(callbacks));
 120
 121     case CustomElementLifecycleCallbacks::Attached:
 122     case CustomElementLifecycleCallbacks::Detached:
 123         return adoptPtr(new AttachedDetachedInvocation(callbacks, which));
 124     default:
 125         ASSERT_NOT_REACHED();
 126         return PassOwnPtr<CustomElementCallbackInvocation>();
 127     }
 128 }
 129
 130 PassOwnPtr<CustomElementCallbackInvocation> CustomElementCallbackInvocation::createAttributeChangedInvocation(PassRefPtr<CustomElementLifecycleCallbacks> callbacks, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue)
 131 {
 132     return adoptPtr(new AttributeChangedInvocation(callbacks, name, oldValue, newValue));
 133 }
 134
 135 } // namespace blink