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32 #include "core/loader/PrerenderHandle.h"
34 #include "core/dom/Document.h"
35 #include "core/frame/LocalFrame.h"
36 #include "core/loader/FrameLoader.h"
37 #include "core/loader/PrerendererClient.h"
38 #include "platform/Prerender.h"
39 #include "platform/weborigin/ReferrerPolicy.h"
40 #include "platform/weborigin/SecurityPolicy.h"
45 PassOwnPtr<PrerenderHandle> PrerenderHandle::create(Document& document, PrerenderClient* client, const KURL& url, const unsigned prerenderRelTypes)
47 // Prerenders are unlike requests in most ways (for instance, they pass down fragments, and they don't return data),
48 // but they do have referrers.
49 if (!document.frame())
50 return PassOwnPtr<PrerenderHandle>();
52 RefPtr<Prerender> prerender = Prerender::create(client, url, prerenderRelTypes, SecurityPolicy::generateReferrer(document.referrerPolicy(), url, document.outgoingReferrer()));
54 PrerendererClient* prerendererClient = PrerendererClient::from(document.page());
55 if (prerendererClient)
56 prerendererClient->willAddPrerender(prerender.get());
59 return adoptPtr(new PrerenderHandle(document, prerender.release()));
62 PrerenderHandle::PrerenderHandle(Document& document, PassRefPtr<Prerender> prerender)
63 : DocumentLifecycleObserver(&document)
64 , m_prerender(prerender)
68 PrerenderHandle::~PrerenderHandle()
74 void PrerenderHandle::cancel()
76 // Avoid both abandoning and canceling the same prerender. In the abandon case, the LinkLoader cancels the
77 // PrerenderHandle as the Document is destroyed, even through the DocumentLifecycleObserver has already abandoned
81 m_prerender->cancel();
85 const KURL& PrerenderHandle::url() const
87 return m_prerender->url();
90 void PrerenderHandle::documentWasDetached()
93 m_prerender->abandon();
98 void PrerenderHandle::detach()
100 m_prerender->removeClient();