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31 #ifndef HTMLImportLoader_h
32 #define HTMLImportLoader_h
34 #include "core/fetch/RawResource.h"
35 #include "core/fetch/ResourceOwner.h"
36 #include "platform/heap/Handle.h"
37 #include "wtf/OwnPtr.h"
38 #include "wtf/PassOwnPtr.h"
39 #include "wtf/Vector.h"
43 class CustomElementSyncMicrotaskQueue;
46 class HTMLImportChild;
47 class HTMLImportsController;
51 // Owning imported Document lifetime. It also implements ResourceClient through ResourceOwner
52 // to feed fetched bytes to the DocumentWriter of the imported document.
53 // HTMLImportLoader is owned by HTMLImportsController.
56 class HTMLImportLoader FINAL : public NoBaseWillBeGarbageCollectedFinalized<HTMLImportLoader>, public ResourceOwner<RawResource> {
66 static PassOwnPtrWillBeRawPtr<HTMLImportLoader> create(HTMLImportsController* controller)
68 return adoptPtrWillBeNoop(new HTMLImportLoader(controller));
71 virtual ~HTMLImportLoader();
73 Document* document() const { return m_document.get(); }
74 void addImport(HTMLImportChild*);
76 void removeImport(HTMLImportChild*);
78 void moveToFirst(HTMLImportChild*);
79 HTMLImportChild* firstImport() const { return m_imports[0]; }
80 bool isFirstImport(const HTMLImportChild* child) const { return m_imports.size() ? firstImport() == child : false; }
82 bool isDone() const { return m_state == StateLoaded || m_state == StateError; }
83 bool hasError() const { return m_state == StateError; }
84 bool shouldBlockScriptExecution() const;
87 void importDestroyed();
89 void startLoading(const ResourcePtr<RawResource>&);
91 // Tells the loader that the parser is done with this import.
92 // Called by Document::finishedParsing, after DOMContentLoaded was dispatched.
93 void didFinishParsing();
94 // Tells the loader that all of the import's stylesheets finished
96 // Called by Document::didRemoveAllPendingStylesheet.
97 void didRemoveAllPendingStylesheet();
99 PassRefPtrWillBeRawPtr<CustomElementSyncMicrotaskQueue> microtaskQueue() const;
101 virtual void trace(Visitor*);
104 HTMLImportLoader(HTMLImportsController*);
107 virtual void responseReceived(Resource*, const ResourceResponse&) OVERRIDE;
108 virtual void dataReceived(Resource*, const char* data, int length) OVERRIDE;
109 virtual void notifyFinished(Resource*) OVERRIDE;
111 State startWritingAndParsing(const ResourceResponse&);
112 State finishWriting();
113 State finishParsing();
114 State finishLoading();
116 void setState(State);
117 void didFinishLoading();
118 bool hasPendingResources() const;
123 RawPtrWillBeMember<HTMLImportsController> m_controller;
124 WillBeHeapVector<RawPtrWillBeMember<HTMLImportChild> > m_imports;
126 RefPtrWillBeMember<Document> m_document;
127 RefPtrWillBeMember<DocumentWriter> m_writer;
128 RefPtrWillBeMember<CustomElementSyncMicrotaskQueue> m_microtaskQueue;
131 } // namespace WebCore
133 #endif // HTMLImportLoader_h