Name Description Size
AnonymousContentKey.h values to identify particular subtrees of native anonymous content 2046
AspectRatio.cpp 1430
AspectRatio.h The aspect ratio of a box, in a "width / height" format. 5313
AutoCopyListener.h OnSelectionChange() is called when a Selection whose NotifyAutoCopy() was called is changed. @param aDocument The document of the Selection. May be nullptr. @param aSelection The selection. @param aReason The reasons of the change. See nsISelectionListener::*_REASON. 1938
BRFrame.cpp rendering object for HTML <br> elements 9625
BlockReflowInput.cpp state used in reflow of block frames 42811
BlockReflowInput.h state used in reflow of block frames 15342
CSSAlignUtils.cpp Utility code for performing CSS Box Alignment 5767
CSSAlignUtils.h Utility code for performing CSS Box Alignment 2686
CSSOrderAwareFrameIterator.cpp Iterator class for frame lists that respect CSS "order" during layout 2522
CSSOrderAwareFrameIterator.h Iterator class for frame lists that respect CSS "order" during layout 9077
ColumnSetWrapperFrame.cpp 9402
ColumnSetWrapperFrame.h 2642
ColumnUtils.cpp A namespace class for static muti-column utilities. 1662
ColumnUtils.h A namespace class for static muti-column utilities. 1342
DetailsFrame.cpp 4764
DetailsFrame.h 2248
FrameChildList.cpp 1589
FrameChildList.h !defined(FrameChildList_h_) 1231
FrameClass.py 723
FrameClasses.py 8743
GenerateFrameLists.py 1500
JustificationUtils.h Jutification Algorithm The justification algorithm is based on expansion opportunities between justifiable clusters. By this algorithm, there is one expansion opportunity at each side of a justifiable cluster, and at most one opportunity between two clusters. For example, if there is a line in a Chinese document is: "你好世界hello world", then the expansion opportunities (marked as '*') would be: 你*好*世*界*hello*' '*world The spacing left in a line will then be distributed equally to each opportunities. Because we want that, only justifiable clusters get expanded, and the split point between two justifiable clusters would be at the middle of the spacing, each expansion opportunities will be filled by two justification gaps. The example above would be: 你 | 好 | 世 | 界 |hello| ' ' |world In the algorithm, information about expansion opportunities is stored in structure JustificationInfo, and the assignment of justification gaps is in structure JustificationAssignment. 4385
LayoutMessageUtils.h 1421
MathMLTextRunFactory.cpp Entries for the mathvariant lookup tables. mKey represents the Unicode character to be transformed and is used for searching the tables. mReplacement represents the mapped mathvariant Unicode character. 27104
MathMLTextRunFactory.h Builds textruns that render their text with MathML specific renderings. 1797
PrintedSheetFrame.cpp Rendering object for a printed or print-previewed sheet of paper 15243
PrintedSheetFrame.h Rendering object for a printed or print-previewed sheet of paper 2097
ReflowInput.cpp struct containing the input to nsIFrame::Reflow 125600
ReflowInput.h struct containing the input to nsIFrame::Reflow 43984
ReflowOutput.cpp struct containing the output from nsIFrame::Reflow 1385
ReflowOutput.h struct containing the output from nsIFrame::Reflow 8783
RubyUtils.cpp static 7022
RubyUtils.h Reserved ISize With some exceptions, each ruby internal box has two isizes, which are the reflowed isize and the final isize. The reflowed isize is what a box itself needs. It is determined when the box gets reflowed. The final isize is what a box should be as the final result. For a ruby base/text box, the final isize is the size of its ruby column. For a ruby base/text container, the final isize is the size of its ruby segment. The final isize is never smaller than the reflowed isize. It is initially determined when a ruby column/segment gets fully reflowed, and may be advanced when a box is expanded, e.g. for justification. The difference between the reflowed isize and the final isize is reserved in the line layout after reflowing a box, hence it is called "Reserved ISize" here. It is used to expand the ruby boxes from their reflowed isize to the final isize during alignment of the line. There are three exceptions for the final isize: 1. A ruby text container has a larger final isize only if it is for a span or collapsed annotations. 2. A ruby base container has a larger final isize only if at least one of its ruby text containers does. 3. If a ruby text container has a larger final isize, its children must not have. 7362
ScrollAnchorContainer.cpp Set the appropriate frame flags for a frame that has become or is no longer an anchor node. 27396
ScrollAnchorContainer.h A scroll anchor container finds a descendent element of a scrollable frame to be an anchor node. After every reflow, the scroll anchor will apply scroll adjustments to keep the anchor node in the same relative position. See: https://drafts.csswg.org/css-scroll-anchoring/ 6453
ScrollAnimationBezierPhysics.cpp 6047
ScrollAnimationBezierPhysics.h 3504
ScrollAnimationMSDPhysics.cpp 4317
ScrollAnimationMSDPhysics.h 1957
ScrollAnimationPhysics.h 1721
ScrollOrigin.h 2685
ScrollPositionUpdate.cpp static 5011
ScrollPositionUpdate.h This class represents an update to the scroll position that is initiated by something on the main thread. A list of these classes is accumulated by scrollframes on the main thread, and the list is sent over as part of a paint transaction to the compositor. The compositor can then iterate through the scroll updates and apply/merge them with scrolling that has already occurred independently on the compositor side. 4898
ScrollSnap.cpp Keeps track of the current best edge to snap to. The criteria for adding an edge depends on the scrolling unit. 11851
ScrollSnap.h GetSnapPointForDestination determines which point to snap to after scrolling. |aStartPos| gives the position before scrolling and |aDestination| gives the position after scrolling, with no snapping. Behaviour is dependent on the value of |aUnit|. |aSnapInfo| and |aScrollRange| are characteristics of the scroll frame for which snapping is being performed. If a suitable snap point could be found, it is returned. Otherwise, an empty Maybe is returned. IMPORTANT NOTE: This function is designed to be called both on and off the main thread. If modifying its implementation, be sure not to touch main-thread-only data structures without appropriate locking. 1654
ScrollVelocityQueue.cpp Calculate the velocity of the scroll frame, in appunits / second. 2937
ScrollVelocityQueue.h ScrollVelocityQueue is used to determine the current velocity of a scroll frame, derived from scroll position samples. Using the last iteration's scroll position, stored in mLastPosition, a delta of the scroll position is calculated and accumulated in mAccumulator until the refresh driver returns a new timestamp for MostRecentRefresh(). When there is a new timestamp from the refresh driver, the accumulated change in scroll position is divided by the delta of the timestamp to get an average velocity over that period. This velocity is pushed into mQueue as a std::pair associating each velocity with the duration over which it was sampled. Samples are removed from mQueue, leaving only those necessary to determine the average velocity over the recent relevant period, which has a duration set by the apz.velocity_relevance_time_ms preference. The velocity of each sample is clamped to a value set by the layout.css.scroll-snap.prediction-max-velocity. As the average velocity will later be integrated over a duration set by the layout.css.scroll-snap.prediction-sensitivity preference and the velocity samples are clamped to a set value, the maximum expected scroll offset can be calculated. This maximum offset is used to clamp mAccumulator, eliminating samples that would otherwise result in scroll snap position selection that is not consistent with the user's perception of scroll velocity. 3488
ScrollbarActivity.cpp 13327
ScrollbarActivity.h ScrollbarActivity This class manages scrollbar behavior that imitates the native Mac OS X Lion overlay scrollbar behavior: Scrollbars are only shown while "scrollbar activity" occurs, and they're hidden with a fade animation after a short delay. Scrollbar activity has these states: - inactive: Scrollbars are hidden. - ongoing activity: Scrollbars are visible and being operated on in some way, for example because they're hovered or pressed. - active, but waiting for fade out Scrollbars are still completely visible but are about to fade away. - fading out Scrollbars are subject to a fade-out animation. Initial scrollbar activity needs to be reported by the scrollbar holder that owns the ScrollbarActivity instance. This needs to happen via a call to ActivityOccurred(), for example when the current scroll position or the size of the scroll area changes. As soon as scrollbars are visible, the ScrollbarActivity class manages the rest of the activity behavior: It ensures that mouse motions inside the scroll area keep the scrollbars visible, and that scrollbars don't fade away while they're being hovered / dragged. It also sets a sticky hover attribute on the most recently hovered scrollbar. ScrollbarActivity falls into hibernation after the scrollbars have faded out. It only starts acting after the next call to ActivityOccurred() / ActivityStarted(). 5438
ScrollbarPreferences.h 559
StickyScrollContainer.cpp compute sticky positioning, both during reflow and when the scrolling container scrolls 15605
StickyScrollContainer.h compute sticky positioning, both during reflow and when the scrolling container scrolls 3848
TextDrawTarget.h 24226
TextOverflow.cpp 36501
TextOverflow.h A class for rendering CSS3 text-overflow. Usage: 1. allocate an object using WillProcessLines 2. then call ProcessLine for each line you are building display lists for 12329
ViewportFrame.cpp rendering object that is the root of the frame tree, which contains the document's scrollbars and contains fixed-positioned elements 18906
ViewportFrame.h rendering object that is the root of the frame tree, which contains the document's scrollbars and contains fixed-positioned elements 4276
Visibility.h Declares visibility-related types. @Visibility is an enumeration of the possible visibility states of a frame. @OnNonvisible is an enumeration that allows callers to request a specific action when a frame transitions from visible to nonvisible. 1750
WBRFrame.cpp rendering object for HTML <wbr> elements 2481
WritingModes.h mozilla::WritingMode is an immutable class representing a writing mode. It efficiently stores the writing mode and can rapidly compute interesting things about it for use in layout. Writing modes are computed from the CSS 'direction', 'writing-mode', and 'text-orientation' properties. See CSS3 Writing Modes for more information http://www.w3.org/TR/css3-writing-modes/ 74605
broken-image.png 160
crashtests 821
folder.png 529
frame-graph.py Take the *.framedata files from graph-frameclasses.js and combine them into a single graphviz file. stdin: a list of .framedata file names (e.g. from xargs) stdout: a graphviz file e.g. `find <objdir> -name "*.framedata" | python aggregate-frameclasses.py | dot -Tpng -o frameclasses-graph.png -` 1070
jar.mn 330
loading-image.png 160
moz.build 7189
nsAbsoluteContainingBlock.cpp code for managing absolutely positioned children of a rendering object that is a containing block for them 38305
nsAbsoluteContainingBlock.h code for managing absolutely positioned children of a rendering object that is a containing block for them 7261
nsAtomicContainerFrame.h base class for rendering objects that need child lists but behave like leaf 1701
nsBackdropFrame.cpp rendering object for CSS "::backdrop" 2856
nsBackdropFrame.h rendering object for CSS "::backdrop" 1623
nsBlockDebugFlags.h 1460
nsBlockFrame.cpp rendering object for CSS display:block, inline-block, and list-item boxes, also used for various anonymous boxes 307096
nsBlockFrame.h rendering object for CSS display:block, inline-block, and list-item boxes, also used for various anonymous boxes 39389
nsBlockReflowContext.cpp class that a parent frame uses to reflow a block frame 17612
nsBlockReflowContext.h class that a parent frame uses to reflow a block frame 3506
nsBulletFrame.cpp rendering object for list-item bullets 38672
nsBulletFrame.h rendering object for list-item bullets 4337
nsCanvasFrame.cpp rendering object that goes directly inside the document's scrollbars 37322
nsCanvasFrame.h rendering object that goes directly inside the document's scrollbars 8602
nsColumnSetFrame.cpp rendering object for css3 multi-column layout 55462
nsColumnSetFrame.h rendering object for css3 multi-column layout 8234
nsContainerFrame.cpp base class #1 for rendering objects that have child lists 121935
nsContainerFrame.h base class #1 for rendering objects that have child lists 53459
nsContainerFrameInlines.h 4204
nsDirection.h 527
nsFirstLetterFrame.cpp rendering object for CSS :first-letter pseudo-element 15616
nsFirstLetterFrame.h rendering object for CSS :first-letter pseudo-element 3678
nsFlexContainerFrame.cpp rendering object for CSS "display: flex" 247981
nsFlexContainerFrame.h rendering object for CSS "display: flex" and "display: -webkit-box" 30538
nsFloatManager.cpp class that manages rules for positioning floats 127477
nsFloatManager.h class that manages rules for positioning floats 18505
nsFontInflationData.cpp Per-block-formatting-context manager of font size inflation for pan and zoom UI. 14032
nsFontInflationData.h Per-block-formatting-context manager of font size inflation for pan and zoom UI. 2328
nsFrameList.cpp 15535
nsFrameList.h for FILE* 20386
nsFrameSelection.cpp Implementation of nsFrameSelection 114088
nsFrameSelection.h PeekOffsetStruct is used to group various arguments (both input and output) that are passed to nsIFrame::PeekOffset(). See below for the description of individual arguments. 40626
nsFrameSetFrame.cpp rendering object for HTML <frameset> elements 55176
nsFrameSetFrame.h rendering object for HTML <frameset> elements 6676
nsFrameState.cpp constants for frame state bits and a type to store them in a uint64_t 4011
nsFrameState.h constants for frame state bits and a type to store them in a uint64_t 2207
nsFrameStateBits.h a list of all frame state bits, for preprocessing 32536
nsGfxScrollFrame.cpp rendering object to wrap rendering objects that should be scrollable 315404
nsGfxScrollFrame.h rendering object to wrap rendering objects that should be scrollable 72029
nsGridContainerFrame.cpp rendering object for CSS "display: grid | inline-grid" 409772
nsGridContainerFrame.h rendering object for CSS "display: grid | inline-grid" 21551
nsHTMLCanvasFrame.cpp rendering object for the HTML <canvas> element 23744
nsHTMLCanvasFrame.h rendering object for the HTML <canvas> element 4030
nsHTMLParts.h factory functions for rendering object classes 9473
nsIAnonymousContentCreator.h interface for rendering objects that manually create subtrees of anonymous content 2374
nsIFrame.cpp base class of all rendering objects 474487
nsIFrame.h interface for all rendering objects 224912
nsIFrameInlines.h 10701
nsILineIterator.h Line iterator API. Lines are numbered from 0 to N, where 0 is the top line and N is the bottom line. Obtain this interface from frames via nsIFrame::GetLineIterator. When you are finished using the iterator, call DisposeLineIterator() to destroy the iterator if appropriate. 4064
nsIScrollPositionListener.h Provides a way to learn about scroll position changes of nsIScrollableFrame's. 749
nsIScrollableFrame.h interface that provides scroll APIs implemented by scrollable frames 25653
nsIStatefulFrame.h interface for rendering objects whose state is saved in session-history (back-forward navigation) 1231
nsImageFrame.cpp rendering object for replaced elements with image data 97527
nsImageFrame.h rendering object for replaced elements with image data 16968
nsImageMap.cpp code for HTML client-side image maps 25938
nsImageMap.h code for HTML client-side image maps 3086
nsInlineFrame.cpp rendering object for CSS display:inline objects 41240
nsInlineFrame.h rendering object for CSS display:inline objects 8121
nsIntervalSet.cpp a set of ranges on a number-line 2389
nsIntervalSet.h a set of ranges on a number-line 1931
nsLeafFrame.cpp base class for rendering objects that do not have child lists 2133
nsLeafFrame.h base class for rendering objects that do not have child lists 3280
nsLineBox.cpp representation of one line within a block frame, a CSS line box 27744
nsLineBox.h representation of one line within a block frame, a CSS line box 50758
nsLineLayout.cpp state and methods used while laying out a single line of a block frame 131650
nsLineLayout.h state and methods used while laying out a single line of a block frame 24474
nsPageContentFrame.cpp 17680
nsPageContentFrame.h Return our canvas frame. 2249
nsPageFrame.cpp 28039
nsPageFrame.h nsPageFrame_h___ 4731
nsPageSequenceFrame.cpp Members are: {mNumPages, mLargerNumTracks} 28538
nsPageSequenceFrame.h This class maintains various shared data that is used by printing-related frames. The nsPageSequenceFrame strongly owns an instance of this class, which lives for as long as the nsPageSequenceFrame does. 8032
nsPlaceholderFrame.cpp rendering object for the point that anchors out-of-flow rendering objects such as floats and absolutely positioned elements 10281
nsPlaceholderFrame.h rendering object for the point that anchors out-of-flow rendering objects such as floats and absolutely positioned elements 7489
nsQueryFrame.h 5510
nsRubyBaseContainerFrame.cpp rendering object for CSS "display: ruby-base-container" 33519
nsRubyBaseContainerFrame.h rendering object for CSS "display: ruby-base-container" 3619
nsRubyBaseFrame.cpp rendering object for CSS "display: ruby-base" 1415
nsRubyBaseFrame.h rendering object for CSS "display: ruby-base" 1339
nsRubyContentFrame.cpp base class for ruby rendering objects that directly contain content 1234
nsRubyContentFrame.h base class for ruby rendering objects that directly contain content 1242
nsRubyFrame.cpp rendering object for CSS "display: ruby" 17284
nsRubyFrame.h rendering object for CSS "display: ruby" 2539
nsRubyTextContainerFrame.cpp rendering object for CSS "display: ruby-text-container" 6593
nsRubyTextContainerFrame.h rendering object for CSS "display: ruby-text-container" 2723
nsRubyTextFrame.cpp rendering object for CSS "display: ruby-text" 2792
nsRubyTextFrame.h rendering object for CSS "display: ruby-text" 1839
nsSplittableFrame.cpp base class for rendering objects that can be split across lines, columns, or pages 9049
nsSplittableFrame.h base class for rendering objects that can be split across lines, columns, or pages 4788
nsSubDocumentFrame.cpp rendering object for replaced elements that contain a document, such as <frame>, <iframe>, and some <object>s 53989
nsSubDocumentFrame.h nsSubDocumentFrame *************************************************************************** 7839
nsTextFrame.cpp rendering object for textual content of elements 403075
nsTextFrame.h An implementation of gfxTextRun::PropertyProvider that computes spacing and hyphenation based on CSS properties for a text frame. 41373
nsTextFrameUtils.cpp static 14447
nsTextFrameUtils.h Returns true if aChars/aLength are something that make a space character not be whitespace when they follow the space character (combining mark or join control, ignoring intervening direction controls). 7137
nsTextRunTransformations.cpp 35599
nsTextRunTransformations.h Builds textruns that transform the text in some way (e.g., capitalize) and then render the text using some other textrun implementation. 10323
nsVideoFrame.cpp rendering object for the HTML <video> element 27290
nsVideoFrame.h rendering object for the HTML <video> element 4905
test 149