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serenity/Userland/Libraries/LibWeb/DOM
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Aliaksandr Kalenik 76d1536307 LibWeb: Optimize scroll offset and clip state recalculation 
In this commit we have optimized the handling of scroll offsets and
clip rectangles to improve performance. Previously, the process
involved multiple full traversals of the paintable tree before each
repaint, which was highly inefficient, especially on pages with a
large number of paintables. The steps were:

1. Traverse the paintable tree to identify all boxes with scrollable or
   clipped overflow.
2. Gather the accumulated scroll offset or clip rectangle for each box.
3. Perform another traversal to apply the corresponding scroll offset
   and clip rectangle to each paintable.

To address this, we've adopted a new strategy that separates the
assignment of the scroll/clip frame from the refresh of accumulated
scroll offsets and clip rectangles, thus reducing the workload:

1. Post-relayout: Identify all boxes with overflow and link each
   paintable to the state of its containing scroll/clip frame.
2. Pre-repaint: Update the clip rectangle and scroll offset only in the
   previously identified boxes.

This adjustment ensures that the costly tree traversals are only
necessary after a relayout, substantially decreasing the amount of work
required before each repaint.
2024-02-09 16:45:44 +01:00
..
AbortController.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
AbortController.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
AbortController.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
AbortSignal.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
AbortSignal.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
AbortSignal.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
AbstractRange.cpp LibWeb: Use WebIDL typedefs in Range/AbstractRange 2024-01-04 10:10:44 +01:00
AbstractRange.h LibWeb: Use WebIDL typedefs in Range/AbstractRange 2024-01-04 10:10:44 +01:00
AbstractRange.idl IDL: Add missing #imports 2023-11-11 08:51:51 +01:00
AccessibilityTreeNode.cpp LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
AccessibilityTreeNode.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
Attr.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
Attr.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
Attr.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
CDATASection.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
CDATASection.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
CDATASection.idl IDL: Add missing #imports 2023-11-11 08:51:51 +01:00
CharacterData.cpp LibWeb: Use UTF-16 code unit offsets and lengths in CharacterData 2023-12-23 20:41:41 +01:00
CharacterData.h LibWeb: Use UTF-16 code unit offsets and lengths in CharacterData 2023-12-23 20:41:41 +01:00
CharacterData.idl LibWeb: Use UTF-16 code unit offsets and lengths in CharacterData 2023-12-23 20:41:41 +01:00
ChildNode.h LibWeb: Remove DeprecatedString support from {Child,Parent}Node 2023-10-06 08:25:40 +02:00
ChildNode.idl IDL: Add missing #imports 2023-11-11 08:51:51 +01:00
Comment.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
Comment.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
Comment.idl LibWeb: Port Comment interface from DeprecatedString to String 2023-09-06 11:44:45 -04:00
CustomEvent.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
CustomEvent.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
CustomEvent.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
Document.cpp LibWeb: Optimize scroll offset and clip state recalculation 2024-02-09 16:45:44 +01:00
Document.h LibWeb: Move paint properties invalidation flag into Document 2024-02-09 16:45:44 +01:00
Document.idl LibWeb: Implement document.elementFromPoint() 2024-02-06 08:43:03 +01:00
DocumentFragment.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
DocumentFragment.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
DocumentFragment.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
DocumentLoadEventDelayer.cpp LibWeb+LibJS: Make the EventTarget hierarchy (incl. DOM) GC-allocated 2022-09-06 00:27:09 +02:00
DocumentLoadEventDelayer.h LibWeb+LibJS: Make the EventTarget hierarchy (incl. DOM) GC-allocated 2022-09-06 00:27:09 +02:00
DocumentLoading.cpp LibWeb: Use file's URL as document's URL when loading markdown files 2024-02-08 07:58:07 -07:00
DocumentLoading.h LibWeb: Remove old ad-hoc document-loading code 2023-12-26 18:35:29 +01:00
DocumentObserver.cpp LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
DocumentObserver.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
DocumentType.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
DocumentType.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
DocumentType.idl LibWeb: Switch IDL from UseNewAKString to UseDeprecatedAKString 2023-09-02 19:23:41 +01:00
DOMEventListener.cpp LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
DOMEventListener.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
DOMImplementation.cpp LibWeb: Use Optional<FlyString> directly in Document & DOMImplementation 2024-01-13 08:33:10 +01:00
DOMImplementation.h LibWeb: Use Optional<FlyString> directly in Document & DOMImplementation 2024-01-13 08:33:10 +01:00
DOMImplementation.idl LibWeb: Use Optional<FlyString> directly in Document & DOMImplementation 2024-01-13 08:33:10 +01:00
DOMTokenList.cpp LibWeb: Remove DOM element deprecated_get_attribute() 2024-01-19 13:12:54 -07:00
DOMTokenList.h LibWeb: Delete LegacyPlatformObject and move behavior to PlatformObject 2024-01-12 09:11:18 +01:00
DOMTokenList.idl LibWeb: Switch IDL from UseNewAKString to UseDeprecatedAKString 2023-09-02 19:23:41 +01:00
Element.cpp LibWeb: Move paint properties invalidation flag into Document 2024-02-09 16:45:44 +01:00
Element.h LibWeb: Reset form association when any element with an ID changes 2024-02-03 15:30:16 -07:00
Element.idl LibWeb: Implement Element.removeAttributeNS 2024-01-14 16:10:18 -07:00
ElementFactory.cpp LibWeb: Add initial support for SVG <textPath> 2023-12-19 21:29:03 +01:00
ElementFactory.h LibWeb: Use FlyString for create_element() namespace strings 2023-11-04 21:28:30 +01:00
Event.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
Event.h LibWeb: Make UIEvents from the chrome the only default trusted Events 2024-01-19 11:47:59 +01:00
Event.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
EventDispatcher.cpp LibWeb: Port call_user_object_operation from DeprecatedString 2023-12-02 22:54:53 +01:00
EventDispatcher.h LibWeb+LibJS: Make the EventTarget hierarchy (incl. DOM) GC-allocated 2022-09-06 00:27:09 +02:00
EventHandler.idl IDL: Add missing #imports 2023-11-11 08:51:51 +01:00
EventTarget.cpp Everywhere: Rename {Deprecated => Byte}String 2023-12-17 18:25:10 +03:30
EventTarget.h LibWeb: Only allocate EventTarget listener/handler storage on demand 2023-11-20 00:39:42 +01:00
EventTarget.idl LibWeb: Switch IDL from UseNewAKString to UseDeprecatedAKString 2023-09-02 19:23:41 +01:00
HTMLCollection.cpp LibWeb: Use cached element name and id where possible 2024-01-13 12:05:36 +01:00
HTMLCollection.h LibWeb: Delete LegacyPlatformObject and move behavior to PlatformObject 2024-01-12 09:11:18 +01:00
HTMLCollection.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
HTMLFormControlsCollection.cpp LibWeb: Port Element::name to a cached FlyString 2024-01-13 12:05:36 +01:00
HTMLFormControlsCollection.h LibWeb: Support RadioNodeList named items in HTMLFormControlsCollection 2023-12-23 20:53:11 +01:00
HTMLFormControlsCollection.idl LibWeb: Format all .idl files to use four space indentation 2024-01-18 14:00:06 +01:00
IDLEventListener.cpp LibWeb/LibJS: Avoid GC visit of raw pointers where possible 2023-11-19 08:05:45 +00:00
IDLEventListener.h LibJS: Make Heap::allocate<T>() infallible 2023-08-13 15:38:42 +02:00
InnerHTML.idl LibWeb: Resolve circular IDL imports 2022-07-30 13:20:47 +02:00
LiveNodeList.cpp LibWeb: Make LiveNodeList store a NonnullGCPtr<Node const> root 2023-12-23 20:53:11 +01:00
LiveNodeList.h LibWeb: Make LiveNodeList store a NonnullGCPtr<Node const> root 2023-12-23 20:53:11 +01:00
MutationObserver.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
MutationObserver.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
MutationObserver.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
MutationRecord.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
MutationRecord.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
MutationRecord.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
MutationType.cpp AK: Make "foo"_fly_string infallible 2023-08-07 16:03:27 +02:00
MutationType.h AK: Make "foo"_fly_string infallible 2023-08-07 16:03:27 +02:00
NamedNodeMap.cpp LibWeb: Fix normalizing namespace in NamedNodeMap::get_attribute_ns 2024-01-13 08:33:10 +01:00
NamedNodeMap.h LibWeb: Delete LegacyPlatformObject and move behavior to PlatformObject 2024-01-12 09:11:18 +01:00
NamedNodeMap.idl LibWeb: Use Optional<FlyString> const& in Element and NamedNodeMap 2024-01-03 10:13:47 +01:00
Node.cpp LibWeb: Skip UTF-8 validation in Node::descendant_text_content() 2024-01-24 07:55:13 +01:00
Node.h LibWeb: Add fast_is<T> for form, embed, image, and object elements 2023-12-24 22:49:19 +01:00
Node.idl LibWeb: Port Node interface from DeprecatedString to String 2023-09-17 20:29:18 +02:00
NodeFilter.cpp LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
NodeFilter.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
NodeFilter.idl IDL: Add missing spec links 2023-11-11 08:51:51 +01:00
NodeIterator.cpp LibWeb: Port call_user_object_operation from DeprecatedString 2023-12-02 22:54:53 +01:00
NodeIterator.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
NodeIterator.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
NodeList.cpp LibWeb: Delete LegacyPlatformObject and move behavior to PlatformObject 2024-01-12 09:11:18 +01:00
NodeList.h LibWeb: Delete LegacyPlatformObject and move behavior to PlatformObject 2024-01-12 09:11:18 +01:00
NodeList.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
NodeOperations.cpp Everywhere: Rename {Deprecated => Byte}String 2023-12-17 18:25:10 +03:30
NodeOperations.h LibWeb: Remove DeprecatedString support from {Child,Parent}Node 2023-10-06 08:25:40 +02:00
NonDocumentTypeChildNode.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
NonElementParentNode.h LibWeb: Use Element::id() in getElementById() 2023-11-02 17:09:34 +01:00
ParentNode.cpp LibWeb: Remove DeprecatedString impls of get_elements_by_tag_name{_ns} 2023-11-06 11:37:08 +01:00
ParentNode.h LibWeb: Remove DeprecatedString impls of get_elements_by_tag_name{_ns} 2023-11-06 11:37:08 +01:00
ParentNode.idl LibWeb: Resolve circular IDL imports 2022-07-30 13:20:47 +02:00
Position.cpp LibWeb: Add missing DOM::Position::visit_edges() 2023-12-12 01:08:07 +01:00
Position.h LibWeb: Add missing DOM::Position::visit_edges() 2023-12-12 01:08:07 +01:00
ProcessingInstruction.cpp LibWeb: Port ProcessingInstruction from ByteString 2023-12-24 13:26:50 +01:00
ProcessingInstruction.h LibWeb: Port ProcessingInstruction from ByteString 2023-12-24 13:26:50 +01:00
ProcessingInstruction.idl LibWeb: Add Exposed attribute and IDL spec links where missing 2022-10-09 10:14:57 +02:00
QualifiedName.cpp LibWeb: Remove some now unused deprecated functions from QualifiedName 2023-11-06 11:37:08 +01:00
QualifiedName.h LibWeb: Remove some now unused deprecated functions from QualifiedName 2023-11-06 11:37:08 +01:00
RadioNodeList.cpp LibWeb: Make LiveNodeList store a NonnullGCPtr<Node const> root 2023-12-23 20:53:11 +01:00
RadioNodeList.h LibWeb: Make LiveNodeList store a NonnullGCPtr<Node const> root 2023-12-23 20:53:11 +01:00
RadioNodeList.idl LibWeb: Switch IDL from UseNewAKString to UseDeprecatedAKString 2023-09-02 19:23:41 +01:00
Range.cpp LibWeb: Stub Range::get_client_rects() 2024-01-20 08:56:52 +01:00
Range.h LibWeb: Stub Range::get_client_rects() 2024-01-20 08:56:52 +01:00
Range.idl LibWeb: Stub Range::get_client_rects() 2024-01-20 08:56:52 +01:00
ShadowRoot.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
ShadowRoot.h LibWeb: Port XMLSerializer from DeprecatedString to String 2023-11-20 15:00:19 +01:00
ShadowRoot.idl LibWeb: Implement element slot-related attributes and settings 2023-09-13 13:45:47 +02:00
Slot.cpp LibWeb: Introduce the slot concept for HTML slot elements 2023-09-13 13:45:47 +02:00
Slot.h LibWeb: Introduce the slot concept for HTML slot elements 2023-09-13 13:45:47 +02:00
Slottable.cpp LibWeb: Skip assigning slottables for non-shadow roots 2023-11-03 20:50:34 +01:00
Slottable.h LibWeb: Implement manual slottable assignment 2023-09-13 13:45:47 +02:00
Slottable.idl IDL: Add missing #imports 2023-11-11 08:51:51 +01:00
StaticNodeList.cpp LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
StaticNodeList.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
StaticRange.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
StaticRange.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
StaticRange.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
StyleElementUtils.cpp LibWeb: Make create_a_css_style_sheet() take String arguments 2023-12-01 20:48:13 +01:00
StyleElementUtils.h LibWeb: Make create_a_css_style_sheet() take String arguments 2023-12-01 20:48:13 +01:00
Text.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
Text.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
Text.idl LibWeb: Introduce the slottable concept for DOM elements and text nodes 2023-09-13 13:45:47 +02:00
TreeWalker.cpp LibWeb: Don't get stuck in TreeWalker.nextNode() when current detached 2023-12-03 23:16:26 +01:00
TreeWalker.h LibWeb: Put most LibWeb GC objects in type-specific heap blocks 2023-11-19 22:00:48 +01:00
TreeWalker.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00
XMLDocument.cpp LibWeb: Port Intrinsics from DeprecatedString 2023-11-28 17:15:27 -05:00
XMLDocument.h LibWeb: Add a default URL of about:blank to DOM::XMLDocument 2024-01-04 11:23:20 +01:00
XMLDocument.idl LibWeb: Add comments and missing items of various IDL files 2023-10-25 19:45:41 +02:00