| /* |
| * Copyright (C) 2010 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: |
| * 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. ``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 |
| * 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 PendingScript_h |
| #define PendingScript_h |
| |
| #include "core/dom/Element.h" |
| #include "core/fetch/ResourceClient.h" |
| #include "core/fetch/ResourceOwner.h" |
| #include "core/fetch/ScriptResource.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/PassRefPtr.h" |
| #include "wtf/RefPtr.h" |
| #include "wtf/text/TextPosition.h" |
| |
| namespace blink { |
| |
| class ScriptSourceCode; |
| class ScriptStreamer; |
| |
| // A container for an external script which may be loaded and executed. |
| // |
| // A ResourcePtr alone does not prevent the underlying Resource |
| // from purging its data buffer. This class holds a dummy client open for its |
| // lifetime in order to guarantee that the data buffer will not be purged. |
| class PendingScript final : public ResourceOwner<ScriptResource> { |
| ALLOW_ONLY_INLINE_ALLOCATION(); |
| public: |
| enum Type { |
| ParsingBlocking, |
| Deferred, |
| Async |
| }; |
| |
| PendingScript(); |
| PendingScript(Element*, ScriptResource*); |
| PendingScript(const PendingScript&); |
| ~PendingScript(); |
| |
| PendingScript& operator=(const PendingScript&); |
| |
| TextPosition startingPosition() const { return m_startingPosition; } |
| void setStartingPosition(const TextPosition& position) { m_startingPosition = position; } |
| |
| void watchForLoad(ScriptResourceClient*); |
| void stopWatchingForLoad(ScriptResourceClient*); |
| |
| Element* element() const { return m_element.get(); } |
| void setElement(Element* element) { m_element = element; } |
| PassRefPtrWillBeRawPtr<Element> releaseElementAndClear(); |
| |
| void setScriptResource(ScriptResource*); |
| |
| virtual void notifyFinished(Resource*); |
| virtual void notifyAppendData(ScriptResource*); |
| |
| void trace(Visitor*); |
| |
| ScriptSourceCode getSource(const KURL& documentURL, bool& errorOccurred) const; |
| |
| void setStreamer(PassRefPtr<ScriptStreamer>); |
| |
| bool isReady() const; |
| |
| private: |
| bool m_watchingForLoad; |
| RefPtrWillBeMember<Element> m_element; |
| TextPosition m_startingPosition; // Only used for inline script tags. |
| |
| RefPtr<ScriptStreamer> m_streamer; |
| }; |
| |
| } // namespace blink |
| |
| #endif // PendingScript_h |