OLD | NEW |
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) 2001 Peter Kelly (pmk@post.com) | 4 * (C) 2001 Peter Kelly (pmk@post.com) |
5 * (C) 2001 Dirk Mueller (mueller@kde.org) | 5 * (C) 2001 Dirk Mueller (mueller@kde.org) |
6 * (C) 2007 David Smith (catfish.man@gmail.com) | 6 * (C) 2007 David Smith (catfish.man@gmail.com) |
7 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc.
All rights reserved. | 7 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc.
All rights reserved. |
8 * (C) 2007 Eric Seidel (eric@webkit.org) | 8 * (C) 2007 Eric Seidel (eric@webkit.org) |
9 * | 9 * |
10 * This library is free software; you can redistribute it and/or | 10 * This library is free software; you can redistribute it and/or |
(...skipping 94 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
105 #include "core/html/HTMLTemplateElement.h" | 105 #include "core/html/HTMLTemplateElement.h" |
106 #include "core/html/parser/HTMLParserIdioms.h" | 106 #include "core/html/parser/HTMLParserIdioms.h" |
107 #include "core/inspector/InspectorInstrumentation.h" | 107 #include "core/inspector/InspectorInstrumentation.h" |
108 #include "core/layout/LayoutTextFragment.h" | 108 #include "core/layout/LayoutTextFragment.h" |
109 #include "core/layout/LayoutView.h" | 109 #include "core/layout/LayoutView.h" |
110 #include "core/page/ChromeClient.h" | 110 #include "core/page/ChromeClient.h" |
111 #include "core/page/FocusController.h" | 111 #include "core/page/FocusController.h" |
112 #include "core/page/Page.h" | 112 #include "core/page/Page.h" |
113 #include "core/page/PointerLockController.h" | 113 #include "core/page/PointerLockController.h" |
114 #include "core/page/SpatialNavigation.h" | 114 #include "core/page/SpatialNavigation.h" |
115 #include "core/page/scrolling/ScrollCustomizationCallbacks.h" | |
116 #include "core/page/scrolling/ScrollState.h" | 115 #include "core/page/scrolling/ScrollState.h" |
117 #include "core/page/scrolling/ScrollStateCallback.h" | |
118 #include "core/paint/DeprecatedPaintLayer.h" | 116 #include "core/paint/DeprecatedPaintLayer.h" |
119 #include "core/svg/SVGDocumentExtensions.h" | 117 #include "core/svg/SVGDocumentExtensions.h" |
120 #include "core/svg/SVGElement.h" | 118 #include "core/svg/SVGElement.h" |
121 #include "platform/EventDispatchForbiddenScope.h" | 119 #include "platform/EventDispatchForbiddenScope.h" |
122 #include "platform/RuntimeEnabledFeatures.h" | 120 #include "platform/RuntimeEnabledFeatures.h" |
123 #include "platform/UserGestureIndicator.h" | 121 #include "platform/UserGestureIndicator.h" |
124 #include "platform/scroll/ScrollableArea.h" | 122 #include "platform/scroll/ScrollableArea.h" |
125 #include "wtf/BitVector.h" | 123 #include "wtf/BitVector.h" |
126 #include "wtf/HashFunctions.h" | 124 #include "wtf/HashFunctions.h" |
127 #include "wtf/text/CString.h" | 125 #include "wtf/text/CString.h" |
128 #include "wtf/text/StringBuilder.h" | 126 #include "wtf/text/StringBuilder.h" |
129 #include "wtf/text/TextPosition.h" | 127 #include "wtf/text/TextPosition.h" |
130 | 128 |
131 namespace blink { | 129 namespace blink { |
132 | 130 |
133 namespace { | |
134 | |
135 // We need to retain the scroll customization callbacks until the element | |
136 // they're associated with is destroyed. It would be simplest if the callbacks | |
137 // could be stored in ElementRareData, but we can't afford the space | |
138 // increase. Instead, keep the scroll customization callbacks here. The other | |
139 // option would be to store these callbacks on the FrameHost or document, but | |
140 // that necessitates a bunch more logic for transferring the callbacks between | |
141 // FrameHosts when elements are moved around. | |
142 ScrollCustomizationCallbacks& scrollCustomizationCallbacks() | |
143 { | |
144 ASSERT(RuntimeEnabledFeatures::scrollCustomizationEnabled()); | |
145 DEFINE_STATIC_LOCAL(Persistent<ScrollCustomizationCallbacks>, | |
146 scrollCustomizationCallbacks, (new ScrollCustomizationCallbacks())); | |
147 return *scrollCustomizationCallbacks; | |
148 } | |
149 | |
150 } // namespace | |
151 | |
152 using namespace HTMLNames; | 131 using namespace HTMLNames; |
153 using namespace XMLNames; | 132 using namespace XMLNames; |
154 | 133 |
155 PassRefPtrWillBeRawPtr<Element> Element::create(const QualifiedName& tagName, Do
cument* document) | 134 PassRefPtrWillBeRawPtr<Element> Element::create(const QualifiedName& tagName, Do
cument* document) |
156 { | 135 { |
157 return adoptRefWillBeNoop(new Element(tagName, document, CreateElement)); | 136 return adoptRefWillBeNoop(new Element(tagName, document, CreateElement)); |
158 } | 137 } |
159 | 138 |
160 Element::Element(const QualifiedName& tagName, Document* document, ConstructionT
ype type) | 139 Element::Element(const QualifiedName& tagName, Document* document, ConstructionT
ype type) |
161 : ContainerNode(document, type) | 140 : ContainerNode(document, type) |
162 , m_tagName(tagName) | 141 , m_tagName(tagName) |
163 { | 142 { |
164 } | 143 } |
165 | 144 |
166 Element::~Element() | 145 Element::~Element() |
167 { | 146 { |
168 ASSERT(needsAttach()); | 147 ASSERT(needsAttach()); |
169 | 148 |
170 #if !ENABLE(OILPAN) | 149 #if !ENABLE(OILPAN) |
171 if (hasRareData()) { | 150 if (hasRareData()) { |
172 elementRareData()->clearShadow(); | 151 elementRareData()->clearShadow(); |
173 detachAllAttrNodesFromElement(); | 152 detachAllAttrNodesFromElement(); |
174 } | 153 } |
175 | 154 |
176 if (isCustomElement()) | 155 if (isCustomElement()) |
177 CustomElement::wasDestroyed(this); | 156 CustomElement::wasDestroyed(this); |
178 | 157 |
179 if (RuntimeEnabledFeatures::scrollCustomizationEnabled()) | |
180 scrollCustomizationCallbacks().removeCallbacksForElement(this); | |
181 | |
182 // With Oilpan, either the Element has been removed from the Document | 158 // With Oilpan, either the Element has been removed from the Document |
183 // or the Document is dead as well. If the Element has been removed from | 159 // or the Document is dead as well. If the Element has been removed from |
184 // the Document the element has already been removed from the pending | 160 // the Document the element has already been removed from the pending |
185 // resources. If the document is also dead, there is no need to remove | 161 // resources. If the document is also dead, there is no need to remove |
186 // the element from the pending resources. | 162 // the element from the pending resources. |
187 if (hasPendingResources()) { | 163 if (hasPendingResources()) { |
188 document().accessSVGExtensions().removeElementFromPendingResources(this)
; | 164 document().accessSVGExtensions().removeElementFromPendingResources(this)
; |
189 ASSERT(!hasPendingResources()); | 165 ASSERT(!hasPendingResources()); |
190 } | 166 } |
191 #endif | 167 #endif |
(...skipping 295 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
487 if (!layoutObject()) | 463 if (!layoutObject()) |
488 return; | 464 return; |
489 | 465 |
490 LayoutRect bounds = boundingBox(); | 466 LayoutRect bounds = boundingBox(); |
491 if (centerIfNeeded) | 467 if (centerIfNeeded) |
492 layoutObject()->scrollRectToVisible(bounds, ScrollAlignment::alignCenter
IfNeeded, ScrollAlignment::alignCenterIfNeeded); | 468 layoutObject()->scrollRectToVisible(bounds, ScrollAlignment::alignCenter
IfNeeded, ScrollAlignment::alignCenterIfNeeded); |
493 else | 469 else |
494 layoutObject()->scrollRectToVisible(bounds, ScrollAlignment::alignToEdge
IfNeeded, ScrollAlignment::alignToEdgeIfNeeded); | 470 layoutObject()->scrollRectToVisible(bounds, ScrollAlignment::alignToEdge
IfNeeded, ScrollAlignment::alignToEdgeIfNeeded); |
495 } | 471 } |
496 | 472 |
497 void Element::setDistributeScroll(ScrollStateCallback* scrollStateCallback, Stri
ng nativeScrollBehavior) | 473 void Element::distributeScroll(ScrollState& scrollState) |
498 { | |
499 scrollStateCallback->setNativeScrollBehavior(ScrollStateCallback::toNativeSc
rollBehavior(nativeScrollBehavior)); | |
500 scrollCustomizationCallbacks().setDistributeScroll(this, scrollStateCallback
); | |
501 } | |
502 | |
503 void Element::setApplyScroll(ScrollStateCallback* scrollStateCallback, String na
tiveScrollBehavior) | |
504 { | |
505 scrollStateCallback->setNativeScrollBehavior(ScrollStateCallback::toNativeSc
rollBehavior(nativeScrollBehavior)); | |
506 scrollCustomizationCallbacks().setApplyScroll(this, scrollStateCallback); | |
507 } | |
508 | |
509 void Element::nativeDistributeScroll(ScrollState& scrollState) | |
510 { | 474 { |
511 ASSERT(RuntimeEnabledFeatures::scrollCustomizationEnabled()); | 475 ASSERT(RuntimeEnabledFeatures::scrollCustomizationEnabled()); |
512 if (scrollState.fullyConsumed()) | 476 if (scrollState.fullyConsumed()) |
513 return; | 477 return; |
514 | 478 |
515 scrollState.distributeToScrollChainDescendant(); | 479 scrollState.distributeToScrollChainDescendant(); |
516 | 480 |
517 // If the scroll doesn't propagate, and we're currently scrolling | 481 // If the scroll doesn't propagate, and we're currently scrolling |
518 // an element other than this one, prevent the scroll from | 482 // an element other than this one, prevent the scroll from |
519 // propagating to this element. | 483 // propagating to this element. |
520 if (!scrollState.shouldPropagate() | 484 if (!scrollState.shouldPropagate() |
521 && scrollState.deltaConsumedForScrollSequence() | 485 && scrollState.deltaConsumedForScrollSequence() |
522 && scrollState.currentNativeScrollingElement() != this) { | 486 && scrollState.currentNativeScrollingElement() != this) { |
523 return; | 487 return; |
524 } | 488 } |
525 | 489 |
526 const double deltaX = scrollState.deltaX(); | 490 const double deltaX = scrollState.deltaX(); |
527 const double deltaY = scrollState.deltaY(); | 491 const double deltaY = scrollState.deltaY(); |
528 | 492 |
529 callApplyScroll(scrollState); | 493 applyScroll(scrollState); |
530 | 494 |
531 if (deltaX != scrollState.deltaX() || deltaY != scrollState.deltaY()) | 495 if (deltaX != scrollState.deltaX() || deltaY != scrollState.deltaY()) |
532 scrollState.setCurrentNativeScrollingElement(this); | 496 scrollState.setCurrentNativeScrollingElement(this); |
533 } | 497 } |
534 | 498 |
535 void Element::callDistributeScroll(ScrollState& scrollState) | 499 void Element::applyScroll(ScrollState& scrollState) |
536 { | |
537 ScrollStateCallback* callback = scrollCustomizationCallbacks().getDistribute
Scroll(this); | |
538 if (!callback) { | |
539 nativeDistributeScroll(scrollState); | |
540 } else { | |
541 if (callback->nativeScrollBehavior() == NativeScrollBehavior::PerformAft
erNativeScroll) | |
542 nativeDistributeScroll(scrollState); | |
543 callback->handleEvent(&scrollState); | |
544 if (callback->nativeScrollBehavior() == NativeScrollBehavior::PerformBef
oreNativeScroll) | |
545 nativeDistributeScroll(scrollState); | |
546 } | |
547 }; | |
548 | |
549 void Element::nativeApplyScroll(ScrollState& scrollState) | |
550 { | 500 { |
551 ASSERT(RuntimeEnabledFeatures::scrollCustomizationEnabled()); | 501 ASSERT(RuntimeEnabledFeatures::scrollCustomizationEnabled()); |
552 if (scrollState.fullyConsumed()) | 502 if (scrollState.fullyConsumed()) |
553 return; | 503 return; |
554 | 504 |
555 const double deltaX = scrollState.deltaX(); | 505 const double deltaX = scrollState.deltaX(); |
556 const double deltaY = scrollState.deltaY(); | 506 const double deltaY = scrollState.deltaY(); |
557 bool scrolled = false; | 507 bool scrolled = false; |
558 | 508 |
559 if (deltaY || deltaX) | 509 // Handle the documentElement separately, as it scrolls the FrameView. |
560 document().updateLayoutIgnorePendingStylesheets(); | 510 if (this == document().documentElement()) { |
561 | |
562 // Handle the scrollingElement separately, as it scrolls the viewport. | |
563 if (this == document().scrollingElement()) { | |
564 FloatSize delta(deltaX, deltaY); | 511 FloatSize delta(deltaX, deltaY); |
565 if (document().frame()->applyScrollDelta(delta, scrollState.isBeginning(
)).didScroll()) { | 512 if (document().frame()->applyScrollDelta(delta, scrollState.isBeginning(
)).didScroll()) { |
566 scrolled = true; | 513 scrolled = true; |
567 scrollState.consumeDeltaNative(scrollState.deltaX(), scrollState.del
taY()); | 514 scrollState.consumeDeltaNative(scrollState.deltaX(), scrollState.del
taY()); |
568 } | 515 } |
569 } else { | 516 } else { |
570 if (!layoutObject()) | 517 if (!layoutObject()) |
571 return; | 518 return; |
572 LayoutBox* curBox = layoutObject()->enclosingBox(); | 519 LayoutBox* curBox = layoutObject()->enclosingBox(); |
573 // FIXME: Native scrollers should only consume the scroll they | 520 // FIXME: Native scrollers should only consume the scroll they |
(...skipping 14 matching lines...) Expand all Loading... |
588 | 535 |
589 // We need to setCurrentNativeScrollingElement in both the | 536 // We need to setCurrentNativeScrollingElement in both the |
590 // distributeScroll and applyScroll default implementations so | 537 // distributeScroll and applyScroll default implementations so |
591 // that if JS overrides one of these methods, but not the | 538 // that if JS overrides one of these methods, but not the |
592 // other, this bookkeeping remains accurate. | 539 // other, this bookkeeping remains accurate. |
593 scrollState.setCurrentNativeScrollingElement(this); | 540 scrollState.setCurrentNativeScrollingElement(this); |
594 if (scrollState.fromUserInput()) | 541 if (scrollState.fromUserInput()) |
595 document().frame()->view()->setWasScrolledByUser(true); | 542 document().frame()->view()->setWasScrolledByUser(true); |
596 }; | 543 }; |
597 | 544 |
598 void Element::callApplyScroll(ScrollState& scrollState) | |
599 { | |
600 ScrollStateCallback* callback = scrollCustomizationCallbacks().getApplyScrol
l(this); | |
601 if (!callback) { | |
602 nativeApplyScroll(scrollState); | |
603 } else { | |
604 if (callback->nativeScrollBehavior() == NativeScrollBehavior::PerformAft
erNativeScroll) | |
605 nativeApplyScroll(scrollState); | |
606 callback->handleEvent(&scrollState); | |
607 if (callback->nativeScrollBehavior() == NativeScrollBehavior::PerformBef
oreNativeScroll) | |
608 nativeApplyScroll(scrollState); | |
609 } | |
610 }; | |
611 | |
612 static float localZoomForLayoutObject(LayoutObject& layoutObject) | 545 static float localZoomForLayoutObject(LayoutObject& layoutObject) |
613 { | 546 { |
614 // FIXME: This does the wrong thing if two opposing zooms are in effect and
canceled each | 547 // FIXME: This does the wrong thing if two opposing zooms are in effect and
canceled each |
615 // other out, but the alternative is that we'd have to crawl up the whole la
yout tree every | 548 // other out, but the alternative is that we'd have to crawl up the whole la
yout tree every |
616 // time (or store an additional bit in the ComputedStyle to indicate that a
zoom was specified). | 549 // time (or store an additional bit in the ComputedStyle to indicate that a
zoom was specified). |
617 float zoomFactor = 1; | 550 float zoomFactor = 1; |
618 if (layoutObject.style()->effectiveZoom() != 1) { | 551 if (layoutObject.style()->effectiveZoom() != 1) { |
619 // Need to find the nearest enclosing LayoutObject that set up | 552 // Need to find the nearest enclosing LayoutObject that set up |
620 // a differing zoom, and then we divide our result by it to eliminate th
e zoom. | 553 // a differing zoom, and then we divide our result by it to eliminate th
e zoom. |
621 LayoutObject* prev = &layoutObject; | 554 LayoutObject* prev = &layoutObject; |
(...skipping 2894 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
3516 { | 3449 { |
3517 #if ENABLE(OILPAN) | 3450 #if ENABLE(OILPAN) |
3518 if (hasRareData()) | 3451 if (hasRareData()) |
3519 visitor->trace(elementRareData()); | 3452 visitor->trace(elementRareData()); |
3520 visitor->trace(m_elementData); | 3453 visitor->trace(m_elementData); |
3521 #endif | 3454 #endif |
3522 ContainerNode::trace(visitor); | 3455 ContainerNode::trace(visitor); |
3523 } | 3456 } |
3524 | 3457 |
3525 } // namespace blink | 3458 } // namespace blink |
OLD | NEW |