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      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 WebCore {
     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 WebCore
    136