Import Dart bindings as of Blink r188698. This merely copies the files over and does not attach any…

sky/engine/bindings-dart/core/dart/DartCustomElementLifecycleCallbacks.cpp

+/*
+ * Copyright (C) 2013 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "bindings/core/dart/DartCustomElementLifecycleCallbacks.h"
+
+#include "bindings/core/dart/DartCustomElementWrapper.h"
+#include "bindings/core/dart/DartDOMData.h"
+#include "bindings/core/dart/DartDOMWrapper.h"
+#include "bindings/core/dart/DartHTMLElement.h"
+#include "bindings/core/dart/DartScriptState.h"
+#include "bindings/core/dart/DartUtilities.h"
+#include "bindings/core/v8/V8Binding.h"
+#include "core/dom/Element.h"
+#include "core/dom/ExecutionContext.h"
+#include "wtf/PassOwnPtr.h"
+
+
+namespace blink {
+
+PassRefPtr<DartCustomElementLifecycleCallbacks> DartCustomElementLifecycleCallbacks::create(DartScriptState* scriptState)
+{
+    return adoptRef(new DartCustomElementLifecycleCallbacks(scriptState));
+}
+
+static CustomElementLifecycleCallbacks::CallbackType flagSet()
+{
+    int flags = CustomElementLifecycleCallbacks::Created | CustomElementLifecycleCallbacks::Attached | CustomElementLifecycleCallbacks::Detached | CustomElementLifecycleCallbacks::AttributeChanged;
+
+    return CustomElementLifecycleCallbacks::CallbackType(flags);
+}
+
+DartCustomElementLifecycleCallbacks::DartCustomElementLifecycleCallbacks(DartScriptState* scriptState)
+    : CustomElementLifecycleCallbacks(flagSet())
+    , m_scriptState(scriptState)
+    , m_owner(0)
+{
+}
+
+DartCustomElementLifecycleCallbacks::~DartCustomElementLifecycleCallbacks()
+{
+    if (!m_owner || !Dart_CurrentIsolate())
+        return;
+
+    DartDOMData::current()->clearCustomElementBinding(m_owner);
+}
+
+
+bool DartCustomElementLifecycleCallbacks::setBinding(CustomElementDefinition* owner, PassOwnPtr<DartCustomElementBinding> binding)
+{
+    ASSERT(!m_owner);
+    m_owner = owner;
+
+    DartDOMData::current()->addCustomElementBinding(owner, binding);
+    return true;
+}
+
+void DartCustomElementLifecycleCallbacks::created(Element* element)
+{
+    DartIsolateScope isolateScope(m_scriptState->isolate());
+    DartApiScope dartApiScope;
+
+    element->setCustomElementState(Element::Upgraded);
+
+    DartCustomElementWrapper<HTMLElement>::upgradeDartWrapper(reinterpret_cast<HTMLElement*>(element), 0);
+}
+
+void DartCustomElementLifecycleCallbacks::attached(Element* element)
+{
+    // TODO(blois): cache this method name to avoid re-creating handles.
+    call("attached", element);
+}
+
+void DartCustomElementLifecycleCallbacks::detached(Element* element)
+{
+    // TODO(blois): cache this method name to avoid re-creating handles.
+    call("detached", element);
+}
+
+void DartCustomElementLifecycleCallbacks::attributeChanged(Element* element, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue)
+{
+    DartIsolateScope isolateScope(m_scriptState->isolate());
+    DartApiScope dartApiScope;
+
+    DartDOMData* domData = DartDOMData::current();
+
+    Dart_WeakPersistentHandle wrapper = DartDOMWrapper::lookupWrapper<DartHTMLElement>(domData, reinterpret_cast<HTMLElement*>(element));
+    if (!wrapper) {
+        return;
+    }
+    Dart_Handle receiver = Dart_HandleFromWeakPersistent(wrapper);
+
+    Dart_Handle args[3] = {
+        DartUtilities::stringToDartString(name),
+        oldValue.isNull() ? Dart_Null() : DartUtilities::stringToDartString(oldValue),
+        newValue.isNull() ? Dart_Null() : DartUtilities::stringToDartString(newValue)
+    };
+
+    // TODO(blois): cache this method name to avoid re-creating handles.
+    Dart_Handle result = Dart_Invoke(receiver, Dart_NewStringFromCString("attributeChanged"), 3, args);
+    if (Dart_IsError(result)) {
+        DartUtilities::reportProblem(DartUtilities::scriptExecutionContext(), result);
+    }
+}
+
+void DartCustomElementLifecycleCallbacks::call(const char* methodName, Element* element)
+{
+    DartIsolateScope isolateScope(m_scriptState->isolate());
+    DartApiScope dartApiScope;
+
+    DartDOMData* domData = DartDOMData::current();
+
+    Dart_WeakPersistentHandle wrapper = DartDOMWrapper::lookupWrapper<DartHTMLElement>(domData, reinterpret_cast<HTMLElement*>(element));
+    if (!wrapper) {
+        return;
+    }
+    Dart_Handle receiver = Dart_HandleFromWeakPersistent(wrapper);
+    Dart_Handle result = Dart_Invoke(receiver, Dart_NewStringFromCString(methodName), 0, 0);
+    if (Dart_IsError(result)) {
+        DartUtilities::reportProblem(DartUtilities::scriptExecutionContext(), result);
+    }
+}
+
+} // namespace blink