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26 #ifndef PendingScript_h
27 #define PendingScript_h
29 #include "core/dom/Element.h"
30 #include "core/fetch/ResourceClient.h"
31 #include "core/fetch/ResourceOwner.h"
32 #include "core/fetch/ScriptResource.h"
33 #include "platform/heap/Handle.h"
34 #include "wtf/PassRefPtr.h"
35 #include "wtf/RefPtr.h"
36 #include "wtf/text/TextPosition.h"
42 // A container for an external script which may be loaded and executed.
44 // A ResourcePtr alone does not prevent the underlying Resource
45 // from purging its data buffer. This class holds a dummy client open for its
46 // lifetime in order to guarantee that the data buffer will not be purged.
47 class PendingScript FINAL : public ResourceOwner<ScriptResource> {
48 ALLOW_ONLY_INLINE_ALLOCATION();
51 : m_watchingForLoad(false)
52 , m_startingPosition(TextPosition::belowRangePosition())
56 PendingScript(Element* element, ScriptResource* resource)
57 : m_watchingForLoad(false)
60 setScriptResource(resource);
63 PendingScript(const PendingScript& other)
64 : ResourceOwner(other)
65 , m_watchingForLoad(other.m_watchingForLoad)
66 , m_element(other.m_element)
67 , m_startingPosition(other.m_startingPosition)
69 setScriptResource(other.resource());
74 PendingScript& operator=(const PendingScript& other)
79 m_watchingForLoad = other.m_watchingForLoad;
80 m_element = other.m_element;
81 m_startingPosition = other.m_startingPosition;
82 this->ResourceOwner<ScriptResource, ResourceClient>::operator=(other);
87 TextPosition startingPosition() const { return m_startingPosition; }
88 void setStartingPosition(const TextPosition& position) { m_startingPosition = position; }
90 bool watchingForLoad() const { return m_watchingForLoad; }
91 void setWatchingForLoad(bool b) { m_watchingForLoad = b; }
93 Element* element() const { return m_element.get(); }
94 void setElement(Element* element) { m_element = element; }
95 PassRefPtrWillBeRawPtr<Element> releaseElementAndClear();
97 void setScriptResource(ScriptResource*);
99 virtual void notifyFinished(Resource*);
101 void trace(Visitor*);
104 bool m_watchingForLoad;
105 RefPtrWillBeMember<Element> m_element;
106 TextPosition m_startingPosition; // Only used for inline script tags.