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31 #ifndef HTMLImportChild_h
32 #define HTMLImportChild_h
34 #include "core/html/imports/HTMLImport.h"
35 #include "platform/heap/Handle.h"
36 #include "platform/weborigin/KURL.h"
37 #include "wtf/WeakPtr.h"
41 class CustomElementMicrotaskImportStep;
42 class HTMLImportLoader;
43 class HTMLImportChildClient;
44 class HTMLLinkElement;
47 // An import tree node subclas to encapsulate imported document
48 // lifecycle. This class is owned by HTMLImportsController. The actual loading
49 // is done by HTMLImportLoader, which can be shared among multiple
50 // HTMLImportChild of same link URL.
52 class HTMLImportChild final : public HTMLImport {
54 HTMLImportChild(const KURL&, HTMLImportLoader*, SyncMode);
55 virtual ~HTMLImportChild();
57 HTMLLinkElement* link() const;
58 const KURL& url() const { return m_url; }
61 void didShareLoader();
62 void didStartLoading();
64 void importDestroyed();
65 WeakPtr<HTMLImportChild> weakPtr() { return m_weakFactory.createWeakPtr(); }
69 virtual Document* document() const override;
70 virtual bool isDone() const override;
71 virtual HTMLImportLoader* loader() const override;
72 virtual void stateWillChange() override;
73 virtual void stateDidChange() override;
74 virtual void trace(Visitor*) override;
77 virtual void showThis() override;
80 void setClient(HTMLImportChildClient*);
85 void didFinishLoading();
86 void didFinishUpgradingCustomElements();
92 void createCustomElementMicrotaskStepIfNeeded();
93 void invalidateCustomElementMicrotaskStep();
96 WeakPtrWillBeWeakMember<CustomElementMicrotaskImportStep> m_customElementMicrotaskStep;
98 WeakPtrFactory<HTMLImportChild> m_weakFactory;
100 RawPtrWillBeMember<HTMLImportLoader> m_loader;
101 RawPtrWillBeMember<HTMLImportChildClient> m_client;
104 inline HTMLImportChild* toHTMLImportChild(HTMLImport* import)
106 ASSERT(!import || !import->isRoot());
107 return static_cast<HTMLImportChild*>(import);
112 #endif // HTMLImportChild_h