Dart bindings for WebKit

Source/WebCore/bindings/dart/DartApplicationLoader.h

+// Copyright 2011, 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.
+
+#ifndef DartApplicationLoader_h
+#define DartApplicationLoader_h
+
+#include "ScriptSourceCode.h"
+
+#include <dart_api.h>
+#include <wtf/HashMap.h>
+#include <wtf/HashSet.h>
+#include <wtf/text/StringHash.h>
+
+struct NPObject;
+
+namespace WebCore {
+
+class Document;
+class KURL;
+class ScriptSourceCode;
+
+// FIXME: move into a file on its own when source reinjection is implemented.
+class DartApplicationLoader : public ThreadSafeRefCounted<DartApplicationLoader> {
+public:
+    DartApplicationLoader(Document*, NPObject* layoutTestController);
+    void load(const String& url, const String& source);
+    void triggerImport(const String& libraryUrl, const String& importedUrl, Dart_LibraryTag);
+    Dart_Handle reinject(Dart_Handle library, const String& libraryUrl, const String& importedUrl, Dart_LibraryTag);
+    void reinjectSources();
+    bool isLoadingMainIsolate() const { return m_libraryUrl.isNull(); }
+private:
+    void importBuiltinLibrary(const String& url, const String& source);
+    void reinjectLibrary(const ScriptSourceCode&);
+    void scriptLoaded(const ScriptSourceCode&, Dart_Isolate);
+    void scriptLoadError(const KURL&);
+    void scriptLoadCancelled(const KURL&);
+
+    static Dart_Handle reinjectTagHandler(Dart_LibraryTag, Dart_Handle, Dart_Handle);
+
+    // Client must ensure that DartApplicationLoader doesn't outlive corresponding document.
+    Document* m_document;
+    NPObject* m_layoutTestController;
+    String m_libraryUrl;
+
+    void loadScript(const String& url, const String& source);
+    void loadLibrary(const String& url, const String& source);
+    void loadSource(const String& url, const String& source);
+    void callEntryPoint();
+
+    Dart_Handle topLevelLibrary();
+    Dart_Handle domLibrary();
+
+    typedef HashSet<String> UrlSet;
+    typedef HashMap<String, UrlSet*> UrlMultiMap;
+
+    void add(UrlMultiMap&, const String& key, const String& value);
+
+    UrlSet m_importedLibraries;
+    UrlMultiMap m_importersForSource;
+
+    // Sources of resources loaded from the URL.
+    // We save them verbatim to be able to reinject them later.
+    HashMap<String, String> m_sources;
+
+    bool m_mainScriptHasBeenLoaded;
+
+    friend class ScriptLoadCallback;
+};
+
+// FIXME: consolidate when we have multiple isolates.
+// FIXME: merge with DartUtilities' per isolate data.
+typedef HashMap<Dart_Isolate, DartApplicationLoader*> IsolateToDartApplicationLoaderMap;
+
+IsolateToDartApplicationLoaderMap& isolateToDartApplicationLoaderMap();
+}
+
+#endif // DartApplicationLoader_h