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| 1 /* | |
| 2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "core/loader/PrerenderHandle.h" | |
| 32 | |
| 33 #include "core/dom/Document.h" | |
| 34 #include "core/frame/LocalFrame.h" | |
| 35 #include "core/loader/FrameLoader.h" | |
| 36 #include "core/loader/PrerendererClient.h" | |
| 37 #include "platform/Prerender.h" | |
| 38 #include "platform/weborigin/ReferrerPolicy.h" | |
| 39 #include "platform/weborigin/SecurityPolicy.h" | |
| 40 | |
| 41 namespace blink { | |
| 42 | |
| 43 // static | |
| 44 PrerenderHandle* PrerenderHandle::create(Document& document, | |
| 45 PrerenderClient* client, | |
| 46 const KURL& url, | |
| 47 const unsigned prerenderRelTypes) { | |
| 48 // Prerenders are unlike requests in most ways (for instance, they pass down | |
| 49 // fragments, and they don't return data), but they do have referrers. | |
| 50 if (!document.frame()) | |
| 51 return nullptr; | |
| 52 | |
| 53 Prerender* prerender = Prerender::create( | |
| 54 client, url, prerenderRelTypes, | |
| 55 SecurityPolicy::generateReferrer(document.getReferrerPolicy(), url, | |
| 56 document.outgoingReferrer())); | |
| 57 | |
| 58 PrerendererClient* prerendererClient = | |
| 59 PrerendererClient::from(document.page()); | |
| 60 if (prerendererClient) | |
| 61 prerendererClient->willAddPrerender(prerender); | |
| 62 prerender->add(); | |
| 63 | |
| 64 return new PrerenderHandle(document, prerender); | |
| 65 } | |
| 66 | |
| 67 PrerenderHandle::PrerenderHandle(Document& document, Prerender* prerender) | |
| 68 : ContextLifecycleObserver(&document), m_prerender(prerender) {} | |
| 69 | |
| 70 PrerenderHandle::~PrerenderHandle() { | |
| 71 if (m_prerender) { | |
| 72 m_prerender->abandon(); | |
| 73 detach(); | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 void PrerenderHandle::cancel() { | |
| 78 // Avoid both abandoning and canceling the same prerender. In the abandon | |
| 79 // case, the LinkLoader cancels the PrerenderHandle as the Document is | |
| 80 // destroyed, even through the ContextLifecycleObserver has already abandoned | |
| 81 // it. | |
| 82 if (!m_prerender) | |
| 83 return; | |
| 84 m_prerender->cancel(); | |
| 85 detach(); | |
| 86 } | |
| 87 | |
| 88 const KURL& PrerenderHandle::url() const { | |
| 89 return m_prerender->url(); | |
| 90 } | |
| 91 | |
| 92 void PrerenderHandle::contextDestroyed(ExecutionContext*) { | |
| 93 // A PrerenderHandle is not removed from LifecycleNotifier::m_observers until | |
| 94 // the next GC runs. Thus contextDestroyed() can be called for a | |
| 95 // PrerenderHandle that is already cancelled (and thus detached). In that | |
| 96 // case, we should not detach the PrerenderHandle again. | |
| 97 if (!m_prerender) | |
| 98 return; | |
| 99 m_prerender->abandon(); | |
| 100 detach(); | |
| 101 } | |
| 102 | |
| 103 void PrerenderHandle::detach() { | |
| 104 m_prerender->dispose(); | |
| 105 m_prerender.clear(); | |
| 106 } | |
| 107 | |
| 108 DEFINE_TRACE(PrerenderHandle) { | |
| 109 visitor->trace(m_prerender); | |
| 110 ContextLifecycleObserver::trace(visitor); | |
| 111 } | |
| 112 | |
| 113 } // namespace blink | |
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Chromium Code Reviews
Issue 2700073002:
core/loader: create private directory to store private classes (Closed)
