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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2000 Simon Hausmann <hausmann@kde.org> | 4 * (C) 2000 Simon Hausmann <hausmann@kde.org> |
5 * Copyright (C) 2003, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserv
ed. | 5 * Copyright (C) 2003, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserv
ed. |
6 * (C) 2006 Graham Dennis (graham.dennis@gmail.com) | 6 * (C) 2006 Graham Dennis (graham.dennis@gmail.com) |
7 * | 7 * |
8 * This library is free software; you can redistribute it and/or | 8 * This library is free software; you can redistribute it and/or |
9 * modify it under the terms of the GNU Library General Public | 9 * modify it under the terms of the GNU Library General Public |
10 * License as published by the Free Software Foundation; either | 10 * License as published by the Free Software Foundation; either |
11 * version 2 of the License, or (at your option) any later version. | 11 * version 2 of the License, or (at your option) any later version. |
12 * | 12 * |
13 * This library is distributed in the hope that it will be useful, | 13 * This library is distributed in the hope that it will be useful, |
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 * Library General Public License for more details. | 16 * Library General Public License for more details. |
17 * | 17 * |
18 * You should have received a copy of the GNU Library General Public License | 18 * You should have received a copy of the GNU Library General Public License |
19 * along with this library; see the file COPYING.LIB. If not, write to | 19 * along with this library; see the file COPYING.LIB. If not, write to |
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 * Boston, MA 02110-1301, USA. | 21 * Boston, MA 02110-1301, USA. |
22 */ | 22 */ |
23 | 23 |
24 #include "config.h" | 24 #include "config.h" |
25 #include "core/html/HTMLAnchorElement.h" | 25 #include "core/html/HTMLAnchorElement.h" |
26 | 26 |
| 27 #include <public/Platform.h> |
| 28 #include <public/WebPrescientNetworking.h> |
| 29 #include <public/WebURL.h> |
27 #include <wtf/text/StringBuilder.h> | 30 #include <wtf/text/StringBuilder.h> |
28 #include "HTMLNames.h" | 31 #include "HTMLNames.h" |
29 #include "core/dom/Attribute.h" | 32 #include "core/dom/Attribute.h" |
30 #include "core/dom/EventNames.h" | 33 #include "core/dom/EventNames.h" |
31 #include "core/dom/KeyboardEvent.h" | 34 #include "core/dom/KeyboardEvent.h" |
32 #include "core/dom/MouseEvent.h" | 35 #include "core/dom/MouseEvent.h" |
33 #include "core/editing/FrameSelection.h" | 36 #include "core/editing/FrameSelection.h" |
34 #include "core/html/HTMLImageElement.h" | 37 #include "core/html/HTMLImageElement.h" |
35 #include "core/html/parser/HTMLParserIdioms.h" | 38 #include "core/html/parser/HTMLParserIdioms.h" |
36 #include "core/loader/FrameLoader.h" | 39 #include "core/loader/FrameLoader.h" |
37 #include "core/loader/FrameLoaderClient.h" | 40 #include "core/loader/FrameLoaderClient.h" |
38 #include "core/loader/FrameLoaderTypes.h" | 41 #include "core/loader/FrameLoaderTypes.h" |
39 #include "core/loader/PingLoader.h" | 42 #include "core/loader/PingLoader.h" |
40 #include "core/page/Chrome.h" | 43 #include "core/page/Chrome.h" |
41 #include "core/page/ChromeClient.h" | 44 #include "core/page/ChromeClient.h" |
42 #include "core/page/Frame.h" | 45 #include "core/page/Frame.h" |
43 #include "core/page/Page.h" | 46 #include "core/page/Page.h" |
44 #include "core/page/Settings.h" | 47 #include "core/page/Settings.h" |
45 #include "core/platform/HistogramSupport.h" | 48 #include "core/platform/HistogramSupport.h" |
46 #include "core/platform/PlatformMouseEvent.h" | 49 #include "core/platform/PlatformMouseEvent.h" |
47 #include "core/platform/network/DNS.h" | 50 #include "core/platform/network/DNS.h" |
48 #include "core/platform/network/ResourceRequest.h" | 51 #include "core/platform/network/ResourceRequest.h" |
49 #include "core/rendering/RenderImage.h" | 52 #include "core/rendering/RenderImage.h" |
50 #include "weborigin/KnownPorts.h" | 53 #include "weborigin/KnownPorts.h" |
51 #include "weborigin/SecurityOrigin.h" | 54 #include "weborigin/SecurityOrigin.h" |
52 #include "weborigin/SecurityPolicy.h" | 55 #include "weborigin/SecurityPolicy.h" |
53 | 56 |
54 namespace WebCore { | 57 namespace WebCore { |
55 | 58 |
| 59 namespace { |
| 60 |
| 61 void preconnectToURL(const KURL& url, WebKit::WebPreconnectMotivation motivation
) |
| 62 { |
| 63 WebKit::WebPrescientNetworking* prescientNetworking = WebKit::Platform::curr
ent()->prescientNetworking(); |
| 64 if (!prescientNetworking) |
| 65 return; |
| 66 |
| 67 prescientNetworking->preconnect(url, motivation); |
| 68 } |
| 69 |
| 70 } |
| 71 |
56 class HTMLAnchorElement::PrefetchEventHandler { | 72 class HTMLAnchorElement::PrefetchEventHandler { |
57 public: | 73 public: |
58 static PassOwnPtr<PrefetchEventHandler> create() | 74 static PassOwnPtr<PrefetchEventHandler> create(HTMLAnchorElement* anchorElem
ent) |
59 { | 75 { |
60 return adoptPtr(new HTMLAnchorElement::PrefetchEventHandler()); | 76 return adoptPtr(new HTMLAnchorElement::PrefetchEventHandler(anchorElemen
t)); |
61 } | 77 } |
62 | 78 |
63 void handleEvent(Event* e); | 79 void handleEvent(Event* e); |
64 | 80 |
65 private: | 81 private: |
66 PrefetchEventHandler(); | 82 explicit PrefetchEventHandler(HTMLAnchorElement*); |
67 | 83 |
68 void reset(); | 84 void reset(); |
69 | 85 |
70 void handleMouseOver(Event* event); | 86 void handleMouseOver(Event* event); |
71 void handleMouseOut(Event* event); | 87 void handleMouseOut(Event* event); |
72 void handleLeftMouseDown(Event* event); | 88 void handleLeftMouseDown(Event* event); |
73 void handleGestureTapUnconfirmed(Event*); | 89 void handleGestureTapUnconfirmed(Event*); |
74 void handleGestureTapDown(Event*); | 90 void handleGestureTapDown(Event*); |
75 void handleClick(Event* event); | 91 void handleClick(Event* event); |
76 | 92 |
| 93 bool shouldPrefetch(const KURL&); |
| 94 void prefetch(WebKit::WebPreconnectMotivation); |
| 95 |
| 96 HTMLAnchorElement* m_anchorElement; |
77 double m_mouseOverTimestamp; | 97 double m_mouseOverTimestamp; |
78 double m_mouseDownTimestamp; | 98 double m_mouseDownTimestamp; |
79 double m_tapDownTimestamp; | 99 double m_tapDownTimestamp; |
80 bool m_hadTapUnconfirmed; | 100 bool m_hadTapUnconfirmed; |
| 101 bool m_hasIssuedPreconnect; |
81 }; | 102 }; |
82 | 103 |
83 using namespace HTMLNames; | 104 using namespace HTMLNames; |
84 | 105 |
85 HTMLAnchorElement::HTMLAnchorElement(const QualifiedName& tagName, Document* doc
ument) | 106 HTMLAnchorElement::HTMLAnchorElement(const QualifiedName& tagName, Document* doc
ument) |
86 : HTMLElement(tagName, document) | 107 : HTMLElement(tagName, document) |
87 , m_hasRootEditableElementForSelectionOnMouseDown(false) | 108 , m_hasRootEditableElementForSelectionOnMouseDown(false) |
88 , m_wasShiftKeyDownOnMouseDown(false) | 109 , m_wasShiftKeyDownOnMouseDown(false) |
89 , m_linkRelations(0) | 110 , m_linkRelations(0) |
90 , m_cachedVisitedLinkHash(0) | 111 , m_cachedVisitedLinkHash(0) |
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641 return; | 662 return; |
642 } | 663 } |
643 | 664 |
644 rootEditableElementMap().set(this, element); | 665 rootEditableElementMap().set(this, element); |
645 m_hasRootEditableElementForSelectionOnMouseDown = true; | 666 m_hasRootEditableElementForSelectionOnMouseDown = true; |
646 } | 667 } |
647 | 668 |
648 HTMLAnchorElement::PrefetchEventHandler* HTMLAnchorElement::prefetchEventHandler
() | 669 HTMLAnchorElement::PrefetchEventHandler* HTMLAnchorElement::prefetchEventHandler
() |
649 { | 670 { |
650 if (!m_prefetchEventHandler) | 671 if (!m_prefetchEventHandler) |
651 m_prefetchEventHandler = PrefetchEventHandler::create(); | 672 m_prefetchEventHandler = PrefetchEventHandler::create(this); |
652 | 673 |
653 return m_prefetchEventHandler.get(); | 674 return m_prefetchEventHandler.get(); |
654 } | 675 } |
655 | 676 |
656 HTMLAnchorElement::PrefetchEventHandler::PrefetchEventHandler() | 677 HTMLAnchorElement::PrefetchEventHandler::PrefetchEventHandler(HTMLAnchorElement*
anchorElement) |
| 678 : m_anchorElement(anchorElement) |
657 { | 679 { |
| 680 ASSERT(m_anchorElement); |
| 681 |
658 reset(); | 682 reset(); |
659 } | 683 } |
660 | 684 |
661 void HTMLAnchorElement::PrefetchEventHandler::reset() | 685 void HTMLAnchorElement::PrefetchEventHandler::reset() |
662 { | 686 { |
663 m_mouseOverTimestamp = 0; | 687 m_mouseOverTimestamp = 0; |
664 m_mouseDownTimestamp = 0; | 688 m_mouseDownTimestamp = 0; |
665 m_hadTapUnconfirmed = false; | 689 m_hadTapUnconfirmed = false; |
666 m_tapDownTimestamp = 0; | 690 m_tapDownTimestamp = 0; |
| 691 m_hasIssuedPreconnect = false; |
667 } | 692 } |
668 | 693 |
669 void HTMLAnchorElement::PrefetchEventHandler::handleEvent(Event* event) | 694 void HTMLAnchorElement::PrefetchEventHandler::handleEvent(Event* event) |
670 { | 695 { |
| 696 if (!shouldPrefetch(m_anchorElement->href())) |
| 697 return; |
| 698 |
671 if (event->type() == eventNames().mouseoverEvent) | 699 if (event->type() == eventNames().mouseoverEvent) |
672 handleMouseOver(event); | 700 handleMouseOver(event); |
673 else if (event->type() == eventNames().mouseoutEvent) | 701 else if (event->type() == eventNames().mouseoutEvent) |
674 handleMouseOut(event); | 702 handleMouseOut(event); |
675 else if (event->type() == eventNames().mousedownEvent && event->isMouseEvent
() && static_cast<MouseEvent*>(event)->button() == LeftButton) | 703 else if (event->type() == eventNames().mousedownEvent && event->isMouseEvent
() && static_cast<MouseEvent*>(event)->button() == LeftButton) |
676 handleLeftMouseDown(event); | 704 handleLeftMouseDown(event); |
677 else if (event->type() == eventNames().gesturetapdownEvent) | 705 else if (event->type() == eventNames().gesturetapdownEvent) |
678 handleGestureTapDown(event); | 706 handleGestureTapDown(event); |
679 else if (event->type() == eventNames().gesturetapunconfirmedEvent) | 707 else if (event->type() == eventNames().gesturetapunconfirmedEvent) |
680 handleGestureTapUnconfirmed(event); | 708 handleGestureTapUnconfirmed(event); |
681 else if (isLinkClick(event)) | 709 else if (isLinkClick(event)) |
682 handleClick(event); | 710 handleClick(event); |
683 } | 711 } |
684 | 712 |
685 void HTMLAnchorElement::PrefetchEventHandler::handleMouseOver(Event* event) | 713 void HTMLAnchorElement::PrefetchEventHandler::handleMouseOver(Event* event) |
686 { | 714 { |
687 if (m_mouseOverTimestamp == 0.0) { | 715 if (m_mouseOverTimestamp == 0.0) { |
688 m_mouseOverTimestamp = event->timeStamp(); | 716 m_mouseOverTimestamp = event->timeStamp(); |
689 | 717 |
690 HistogramSupport::histogramEnumeration("MouseEventPrefetch.MouseOvers",
0, 2); | 718 HistogramSupport::histogramEnumeration("MouseEventPrefetch.MouseOvers",
0, 2); |
| 719 |
| 720 prefetch(WebKit::WebPreconnectMotivationLinkMouseOver); |
691 } | 721 } |
692 } | 722 } |
693 | 723 |
694 void HTMLAnchorElement::PrefetchEventHandler::handleMouseOut(Event* event) | 724 void HTMLAnchorElement::PrefetchEventHandler::handleMouseOut(Event* event) |
695 { | 725 { |
696 if (m_mouseOverTimestamp > 0.0) { | 726 if (m_mouseOverTimestamp > 0.0) { |
697 double mouseOverDuration = convertDOMTimeStampToSeconds(event->timeStamp
() - m_mouseOverTimestamp); | 727 double mouseOverDuration = convertDOMTimeStampToSeconds(event->timeStamp
() - m_mouseOverTimestamp); |
698 HistogramSupport::histogramCustomCounts("MouseEventPrefetch.MouseOverDur
ation_NoClick", mouseOverDuration * 1000, 0, 10000, 100); | 728 HistogramSupport::histogramCustomCounts("MouseEventPrefetch.MouseOverDur
ation_NoClick", mouseOverDuration * 1000, 0, 10000, 100); |
699 | 729 |
700 m_mouseOverTimestamp = 0.0; | 730 m_mouseOverTimestamp = 0.0; |
701 } | 731 } |
702 } | 732 } |
703 | 733 |
704 void HTMLAnchorElement::PrefetchEventHandler::handleLeftMouseDown(Event* event) | 734 void HTMLAnchorElement::PrefetchEventHandler::handleLeftMouseDown(Event* event) |
705 { | 735 { |
706 m_mouseDownTimestamp = event->timeStamp(); | 736 m_mouseDownTimestamp = event->timeStamp(); |
707 | 737 |
708 HistogramSupport::histogramEnumeration("MouseEventPrefetch.MouseDowns", 0, 2
); | 738 HistogramSupport::histogramEnumeration("MouseEventPrefetch.MouseDowns", 0, 2
); |
| 739 |
| 740 prefetch(WebKit::WebPreconnectMotivationLinkMouseDown); |
709 } | 741 } |
710 | 742 |
711 void HTMLAnchorElement::PrefetchEventHandler::handleGestureTapUnconfirmed(Event*
event) | 743 void HTMLAnchorElement::PrefetchEventHandler::handleGestureTapUnconfirmed(Event*
event) |
712 { | 744 { |
713 m_hadTapUnconfirmed = true; | 745 m_hadTapUnconfirmed = true; |
714 | 746 |
715 HistogramSupport::histogramEnumeration("MouseEventPrefetch.TapUnconfirmeds",
0, 2); | 747 HistogramSupport::histogramEnumeration("MouseEventPrefetch.TapUnconfirmeds",
0, 2); |
| 748 |
| 749 prefetch(WebKit::WebPreconnectMotivationLinkTapUnconfirmed); |
716 } | 750 } |
717 | 751 |
718 void HTMLAnchorElement::PrefetchEventHandler::handleGestureTapDown(Event* event) | 752 void HTMLAnchorElement::PrefetchEventHandler::handleGestureTapDown(Event* event) |
719 { | 753 { |
720 m_tapDownTimestamp = event->timeStamp(); | 754 m_tapDownTimestamp = event->timeStamp(); |
721 | 755 |
722 HistogramSupport::histogramEnumeration("MouseEventPrefetch.TapDowns", 0, 2); | 756 HistogramSupport::histogramEnumeration("MouseEventPrefetch.TapDowns", 0, 2); |
| 757 |
| 758 prefetch(WebKit::WebPreconnectMotivationLinkTapDown); |
723 } | 759 } |
724 | 760 |
725 void HTMLAnchorElement::PrefetchEventHandler::handleClick(Event* event) | 761 void HTMLAnchorElement::PrefetchEventHandler::handleClick(Event* event) |
726 { | 762 { |
727 bool capturedMouseOver = (m_mouseOverTimestamp > 0.0); | 763 bool capturedMouseOver = (m_mouseOverTimestamp > 0.0); |
728 if (capturedMouseOver) { | 764 if (capturedMouseOver) { |
729 double mouseOverDuration = convertDOMTimeStampToSeconds(event->timeStamp
() - m_mouseOverTimestamp); | 765 double mouseOverDuration = convertDOMTimeStampToSeconds(event->timeStamp
() - m_mouseOverTimestamp); |
730 | 766 |
731 HistogramSupport::histogramCustomCounts("MouseEventPrefetch.MouseOverDur
ation_Click", mouseOverDuration * 1000, 0, 10000, 100); | 767 HistogramSupport::histogramCustomCounts("MouseEventPrefetch.MouseOverDur
ation_Click", mouseOverDuration * 1000, 0, 10000, 100); |
732 } | 768 } |
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746 | 782 |
747 HistogramSupport::histogramCustomCounts("MouseEventPrefetch.TapDownDurat
ion_Click", tapDownDuration * 1000, 0, 10000, 100); | 783 HistogramSupport::histogramCustomCounts("MouseEventPrefetch.TapDownDurat
ion_Click", tapDownDuration * 1000, 0, 10000, 100); |
748 } | 784 } |
749 | 785 |
750 int flags = (m_hadTapUnconfirmed ? 2 : 0) | (capturedTapDown ? 1 : 0); | 786 int flags = (m_hadTapUnconfirmed ? 2 : 0) | (capturedTapDown ? 1 : 0); |
751 HistogramSupport::histogramEnumeration("MouseEventPrefetch.PreTapEventsFollo
wedByClick", flags, 4); | 787 HistogramSupport::histogramEnumeration("MouseEventPrefetch.PreTapEventsFollo
wedByClick", flags, 4); |
752 | 788 |
753 reset(); | 789 reset(); |
754 } | 790 } |
755 | 791 |
| 792 bool HTMLAnchorElement::PrefetchEventHandler::shouldPrefetch(const KURL& url) |
| 793 { |
| 794 Document* document = m_anchorElement->document(); |
| 795 if (!document) |
| 796 return false; |
| 797 |
| 798 if (!document->securityOrigin()->canDisplay(url)) |
| 799 return false; |
| 800 |
| 801 if (url.hasFragmentIdentifier() && equalIgnoringFragmentIdentifier(document-
>url(), url)) |
| 802 return false; |
| 803 |
| 804 Frame* frame = document->frame(); |
| 805 if (!frame) |
| 806 return false; |
| 807 |
| 808 // Links which create new window/tab are avoided because they may require us
er approval interaction. |
| 809 if (!m_anchorElement->target().isEmpty()) |
| 810 return false; |
| 811 |
| 812 return true; |
756 } | 813 } |
| 814 |
| 815 void HTMLAnchorElement::PrefetchEventHandler::prefetch(WebKit::WebPreconnectMoti
vation motivation) |
| 816 { |
| 817 const KURL& url = m_anchorElement->href(); |
| 818 |
| 819 if (!shouldPrefetch(url)) |
| 820 return; |
| 821 |
| 822 preconnectToURL(url, motivation); |
| 823 } |
| 824 |
| 825 } |
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