1 files changed, 89 insertions, 0 deletions
diff --git a/Source/WebCore/bindings/js/CachedModuleScriptLoader.cpp b/Source/WebCore/bindings/js/CachedModuleScriptLoader.cpp
new file mode 100644
index 000000000..f15a4642e
--- /dev/null
+++ b/Source/WebCore/bindings/js/CachedModuleScriptLoader.cpp
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2015-2016 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "CachedModuleScriptLoader.h"
+
+#include "CachedScript.h"
+#include "CachedScriptFetcher.h"
+#include "DOMWrapperWorld.h"
+#include "Frame.h"
+#include "JSDOMBinding.h"
+#include "ResourceLoaderOptions.h"
+#include "ScriptController.h"
+#include "ScriptModuleLoader.h"
+#include "ScriptSourceCode.h"
+
+namespace WebCore {
+
+Ref<CachedModuleScriptLoader> CachedModuleScriptLoader::create(CachedModuleScriptLoaderClient& client, DeferredPromise& promise, CachedScriptFetcher& scriptFetcher)
+{
+    return adoptRef(*new CachedModuleScriptLoader(client, promise, scriptFetcher));
+}
+
+CachedModuleScriptLoader::CachedModuleScriptLoader(CachedModuleScriptLoaderClient& client, DeferredPromise& promise, CachedScriptFetcher& scriptFetcher)
+    : m_client(&client)
+    , m_promise(&promise)
+    , m_scriptFetcher(scriptFetcher)
+{
+}
+
+CachedModuleScriptLoader::~CachedModuleScriptLoader()
+{
+    if (m_cachedScript) {
+        m_cachedScript->removeClient(*this);
+        m_cachedScript = nullptr;
+    }
+}
+
+bool CachedModuleScriptLoader::load(Document& document, const URL& sourceURL)
+{
+    ASSERT(!m_cachedScript);
+    m_cachedScript = m_scriptFetcher->requestModuleScript(document, sourceURL);
+    if (!m_cachedScript)
+        return false;
+
+    // If the content is already cached, this immediately calls notifyFinished.
+    m_cachedScript->addClient(*this);
+    return true;
+}
+
+void CachedModuleScriptLoader::notifyFinished(CachedResource& resource)
+{
+    ASSERT_UNUSED(resource, &resource == m_cachedScript);
+    ASSERT(m_cachedScript);
+    ASSERT(m_promise);
+
+    Ref<CachedModuleScriptLoader> protectedThis(*this);
+    if (m_client)
+        m_client->notifyFinished(*this, WTFMove(m_promise));
+
+    // Remove the client after calling notifyFinished to keep the data buffer in
+    // CachedResource alive while notifyFinished processes the resource.
+    m_cachedScript->removeClient(*this);
+    m_cachedScript = nullptr;
+}
+
+}