Revert of Implement script-side of callback reactions for Custom Elements V1

third_party/WebKit/Source/bindings/core/v8/ScriptCustomElementDefinition.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "bindings/core/v8/ScriptCustomElementDefinition.h"
 
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8BindingMacros.h"
 #include "bindings/core/v8/V8CustomElementsRegistry.h"
@@ skipping 64 matching lines @@
     //
     // At a meta-level, this downcast is safe because there is
     // currently only one implementation of CustomElementDefinition in
     // product code and that is ScriptCustomElementDefinition. But
     // that may change in the future.
     CustomElementDefinition* definition = registry->definitionForName(name);
     CHECK(definition);
     return static_cast<ScriptCustomElementDefinition*>(definition);
 }
 
-template <typename T>
 static void keepAlive(v8::Local<v8::Array>& array, uint32_t index,
-    const v8::Local<T>& value,
-    ScopedPersistent<T>& persistent,
+    const v8::Local<v8::Object>& value,
+    ScopedPersistent<v8::Object>& persistent,
     ScriptState* scriptState)
 {
     if (value.IsEmpty())
         return;
 
     v8CallOrCrash(array->Set(scriptState->context(), index, value));
 
     persistent.set(scriptState->isolate(), value);
     persistent.setPhantom();
 }
 
 ScriptCustomElementDefinition* ScriptCustomElementDefinition::create(
     ScriptState* scriptState,
     CustomElementsRegistry* registry,
     const CustomElementDescriptor& descriptor,
     const v8::Local<v8::Object>& constructor,
     const v8::Local<v8::Object>& prototype,
-    const v8::Local<v8::Function>& connectedCallback,
-    const v8::Local<v8::Function>& disconnectedCallback,
-    const v8::Local<v8::Function>& attributeChangedCallback,
+    const v8::Local<v8::Object>& connectedCallback,
+    const v8::Local<v8::Object>& disconnectedCallback,
+    const v8::Local<v8::Object>& attributeChangedCallback,
     const HashSet<AtomicString>& observedAttributes)
 {
     ScriptCustomElementDefinition* definition =
         new ScriptCustomElementDefinition(
             scriptState,
             descriptor,
             constructor,
             prototype,
             connectedCallback,
             disconnectedCallback,
@@ skipping 18 matching lines @@
     v8CallOrCrash(map->Set(scriptState->context(), nameValue, array));
 
     return definition;
 }
 
 ScriptCustomElementDefinition::ScriptCustomElementDefinition(
     ScriptState* scriptState,
     const CustomElementDescriptor& descriptor,
     const v8::Local<v8::Object>& constructor,
     const v8::Local<v8::Object>& prototype,
-    const v8::Local<v8::Function>& connectedCallback,
-    const v8::Local<v8::Function>& disconnectedCallback,
-    const v8::Local<v8::Function>& attributeChangedCallback,
+    const v8::Local<v8::Object>& connectedCallback,
+    const v8::Local<v8::Object>& disconnectedCallback,
+    const v8::Local<v8::Object>& attributeChangedCallback,
     const HashSet<AtomicString>& observedAttributes)
-    : CustomElementDefinition(descriptor, observedAttributes)
+    : CustomElementDefinition(descriptor)
     , m_scriptState(scriptState)
     , m_constructor(scriptState->isolate(), constructor)
+    , m_observedAttributes(observedAttributes)
 {
 }
 
 HTMLElement* ScriptCustomElementDefinition::createElementSync(
     Document& document, const QualifiedName& tagName,
     ExceptionState& exceptionState)
 {
     DCHECK(ScriptState::current(m_scriptState->isolate()) == m_scriptState);
 
     // Create an element
@@ skipping 112 matching lines @@
     DCHECK(!m_prototype.isEmpty());
     return m_prototype.newLocal(m_scriptState->isolate());
 }
 
 // CustomElementDefinition
 ScriptValue ScriptCustomElementDefinition::getConstructorForScript()
 {
     return ScriptValue(m_scriptState.get(), constructor());
 }
 
-bool ScriptCustomElementDefinition::hasConnectedCallback() const
-{
-    return !m_connectedCallback.isEmpty();
-}
-
-bool ScriptCustomElementDefinition::hasDisconnectedCallback() const
-{
-    return !m_disconnectedCallback.isEmpty();
-}
-
-void ScriptCustomElementDefinition::runCallback(
-    v8::Local<v8::Function> callback,
-    Element* element, int argc, v8::Local<v8::Value> argv[])
-{
-    DCHECK(ScriptState::current(m_scriptState->isolate()) == m_scriptState);
-    v8::Isolate* isolate = m_scriptState->isolate();
-
-    // Invoke custom element reactions
-    // https://html.spec.whatwg.org/multipage/scripting.html#invoke-custom-element-reactions
-    // If this throws any exception, then report the exception.
-    v8::TryCatch tryCatch(isolate);
-    tryCatch.SetVerbose(true);
-
-    ExecutionContext* executionContext = m_scriptState->getExecutionContext();
-    v8::Local<v8::Value> elementHandle = toV8(element,
-        m_scriptState->context()->Global(), isolate);
-    V8ScriptRunner::callFunction(
-        callback,
-        executionContext,
-        elementHandle,
-        argc, argv, isolate);
-}
-
-void ScriptCustomElementDefinition::runConnectedCallback(Element* element)
-{
-    if (!m_scriptState->contextIsValid())
-        return;
-    ScriptState::Scope scope(m_scriptState.get());
-    v8::Isolate* isolate = m_scriptState->isolate();
-    runCallback(m_connectedCallback.newLocal(isolate), element);
-}
-
-void ScriptCustomElementDefinition::runDisconnectedCallback(Element* element)
-{
-    if (!m_scriptState->contextIsValid())
-        return;
-    ScriptState::Scope scope(m_scriptState.get());
-    v8::Isolate* isolate = m_scriptState->isolate();
-    runCallback(m_disconnectedCallback.newLocal(isolate), element);
-}
-
-void ScriptCustomElementDefinition::runAttributeChangedCallback(
-    Element* element, const QualifiedName& name,
-    const AtomicString& oldValue, const AtomicString& newValue)
-{
-    if (!m_scriptState->contextIsValid())
-        return;
-    ScriptState::Scope scope(m_scriptState.get());
-    v8::Isolate* isolate = m_scriptState->isolate();
-    const int argc = 4;
-    v8::Local<v8::Value> argv[argc] = {
-        v8String(isolate, name.localName()),
-        v8StringOrNull(isolate, oldValue),
-        v8StringOrNull(isolate, newValue),
-        v8String(isolate, name.namespaceURI()),
-    };
-    runCallback(m_attributeChangedCallback.newLocal(isolate), element,
-        argc, argv);
-}
-
 } // namespace blink