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sousa-gecko/layout/generic/FrameClasses.py
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Emilio Cobos Álvarez 5624defbfd Bug 2016280 - Use shadow DOM for editor. r=masayuki,dom-core,smaug,Jamie
There's still a ton of things that can be cleaned up after this, but
this setup is nicer.

For now, editor keeps getting set-up / torn down on BindToFrame. Seems
all that could be untangled, but step by step.

The preview stuff and placeholder can just be created on demand now,
rather than requiring frame reconstruction.

Also, nsSearchControlFrame and co no longer do anything of interest, so
move the still relevant bits elsewhere and remove them.

test_bug1248459.html is removed because it messes with the editor
selection using SpecialPowers, in a way such that it crosses shadow
boundaries, and messes up the selected state triggering debug asserts.

test_focus_docnav.xhtml now triggers a different code-path because of
the shadow root (rather than the frame tree traversal). Keep it working
for now by replacing it with something that isn't a shadow root.

Differential Revision: https://phabricator.services.mozilla.com/D282953
2026-02-17 09:53:01 +00:00

197 lines
9.8 KiB
Python

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
# Frame class definitions, used to generate FrameIdList.h and FrameTypeList.h
from FrameClass import AbstractFrame, Frame
# Most frames support these.
COMMON = {
"SupportsCSSTransforms",
"SupportsContainLayoutAndPaint",
"SupportsAspectRatio",
}
LEAF = {"Leaf"}
MATHML = {"MathML"}
SVG = {"SVG"}
BFC = {"BlockFormattingContext"}
LINE_PARTICIPANT = {"LineParticipant"}
BLOCK = COMMON | {"CanContainOverflowContainers"}
REPLACED = COMMON | {"Replaced"}
REPLACED_SIZING = REPLACED | {"ReplacedSizing"}
TABLE = COMMON - {"SupportsCSSTransforms"}
TABLE_PART = {"SupportsCSSTransforms", "TablePart"}
TABLE_CELL = TABLE_PART | {"SupportsContainLayoutAndPaint"}
MATHML_CONTAINER = (COMMON - {"SupportsContainLayoutAndPaint"}) | MATHML
SVG_CONTENT = (COMMON - {"SupportsContainLayoutAndPaint"}) | SVG
SVG_CONTAINER = SVG_CONTENT | {"SVGContainer"}
SVG_RENDERING_OBSERVER_CONTAINER = SVG_CONTAINER | {"SVGRenderingObserverContainer"}
# NOTE: Intentionally not including "COMMON" here.
INLINE = LINE_PARTICIPANT | {"BidiInlineContainer"}
RUBY_CONTENT = LINE_PARTICIPANT
# FIXME(bug 713387): Shouldn't be Replaced, probably.
TEXT = COMMON | LINE_PARTICIPANT | {"Replaced"} | LEAF
# See FrameClass.py and GenerateFrameLists.py for implementation details.
# The following is a list of all the frame classes, followed by the frame type,
# and a set of flags.
#
# The frame type is somewhat arbitrary (could literally be anything) but for
# new frame class implementations it's probably a good idea to make it a unique
# string (maybe matching the frame name).
#
# See bug 1555477 for some related discussion about the whole Type() set-up.
FRAME_CLASSES = [
Frame("BRFrame", "Br", REPLACED | LINE_PARTICIPANT | LEAF),
Frame("nsBCTableCellFrame", "TableCell", TABLE_CELL),
Frame("nsBlockFrame", "Block", BLOCK),
Frame("nsCanvasFrame", "Canvas", BLOCK),
Frame("nsCheckboxRadioFrame", "CheckboxRadio", REPLACED | LEAF),
Frame("InputButtonControlFrame", "InputButtonControl", REPLACED | LEAF),
Frame("nsColorControlFrame", "ColorControl", REPLACED | LEAF),
Frame("nsColumnSetFrame", "ColumnSet", COMMON),
Frame("ColumnSetWrapperFrame", "ColumnSetWrapper", BLOCK | BFC),
Frame("nsComboboxControlFrame", "ComboboxControl", REPLACED),
Frame("ComboboxLabelFrame", "Block", BLOCK),
Frame("nsContinuingTextFrame", "Text", TEXT),
Frame("nsDateTimeControlFrame", "DateTimeControl", REPLACED),
Frame("nsFieldSetFrame", "FieldSet", BLOCK),
Frame("nsFileControlFrame", "FileControl", REPLACED | LEAF | BFC),
Frame("FileControlLabelFrame", "Block", BLOCK | LEAF),
Frame("nsFirstLetterFrame", "Letter", INLINE),
Frame("nsFloatingFirstLetterFrame", "Letter", INLINE - LINE_PARTICIPANT),
Frame("nsFirstLineFrame", "Line", INLINE),
Frame("nsFlexContainerFrame", "FlexContainer", BLOCK),
Frame("nsIFrame", "None", COMMON),
Frame("nsGridContainerFrame", "GridContainer", BLOCK),
Frame("nsHTMLCanvasFrame", "HTMLCanvas", REPLACED_SIZING),
Frame("nsHTMLFramesetBlankFrame", "None", COMMON | LEAF),
Frame("nsHTMLFramesetBorderFrame", "None", COMMON | LEAF),
Frame("nsHTMLFramesetFrame", "FrameSet", COMMON | LEAF),
Frame("nsImageControlFrame", "ImageControl", REPLACED_SIZING | LEAF),
Frame("nsImageFrame", "Image", REPLACED_SIZING | {"LeafDynamic"}),
Frame("nsInlineFrame", "Inline", INLINE),
Frame("nsListControlFrame", "ListControl", REPLACED),
Frame("nsMathMLmathBlockFrame", "Block", BLOCK | MATHML | BFC),
Frame("nsMathMLmathInlineFrame", "Inline", INLINE | MATHML),
Frame("nsMathMLmencloseFrame", "None", MATHML_CONTAINER),
Frame("nsMathMLmfracFrame", "None", MATHML_CONTAINER),
Frame("nsMathMLmmultiscriptsFrame", "None", MATHML_CONTAINER),
Frame("nsMathMLmoFrame", "None", MATHML_CONTAINER),
Frame("nsMathMLmpaddedFrame", "None", MATHML_CONTAINER),
Frame("nsMathMLmrootFrame", "None", MATHML_CONTAINER),
Frame("nsMathMLmrowFrame", "None", MATHML_CONTAINER),
Frame("nsMathMLmspaceFrame", "None", MATHML_CONTAINER | LEAF),
Frame("nsMathMLmtableFrame", "Table", TABLE | MATHML),
Frame("nsMathMLmtableWrapperFrame", "TableWrapper", BLOCK | MATHML),
Frame("nsMathMLmtdFrame", "TableCell", TABLE_CELL | MATHML),
Frame("nsMathMLmtdInnerFrame", "Block", BLOCK | MATHML),
Frame("nsMathMLmtrFrame", "TableRow", TABLE_PART | MATHML),
Frame("nsMathMLmunderoverFrame", "None", MATHML_CONTAINER),
Frame("nsMathMLTokenFrame", "None", MATHML_CONTAINER),
Frame("nsMenuPopupFrame", "MenuPopup", BLOCK),
Frame("nsPageBreakFrame", "PageBreak", COMMON | LEAF),
Frame("nsPageContentFrame", "PageContent", BLOCK),
Frame("nsPageFrame", "Page", COMMON),
Frame("nsPlaceholderFrame", "Placeholder", COMMON | LEAF),
Frame("nsProgressFrame", "Progress", REPLACED | LEAF),
Frame("nsRangeFrame", "Range", REPLACED | LEAF),
Frame("nsRubyBaseContainerFrame", "RubyBaseContainer", RUBY_CONTENT),
Frame("nsRubyBaseFrame", "RubyBase", RUBY_CONTENT),
Frame("nsRubyFrame", "Ruby", RUBY_CONTENT),
Frame("nsRubyTextContainerFrame", "RubyTextContainer", {"None"}),
Frame("nsRubyTextFrame", "RubyText", RUBY_CONTENT),
Frame("ScrollContainerFrame", "ScrollContainer", COMMON),
Frame("SimpleXULLeafFrame", "SimpleXULLeaf", COMMON | LEAF),
Frame("nsScrollbarButtonFrame", "SimpleXULLeaf", COMMON | LEAF),
Frame("nsScrollbarFrame", "Scrollbar", COMMON),
Frame("nsSelectsAreaFrame", "Block", BLOCK | BFC),
Frame("nsPageSequenceFrame", "PageSequence", COMMON),
Frame("nsSliderFrame", "Slider", COMMON),
Frame("nsSplitterFrame", "SimpleXULLeaf", COMMON | LEAF),
Frame("nsSubDocumentFrame", "SubDocument", REPLACED_SIZING | LEAF),
Frame("PrintedSheetFrame", "PrintedSheet", COMMON),
Frame("SVGAFrame", "SVGA", SVG_CONTAINER),
Frame("SVGClipPathFrame", "SVGClipPath", SVG_RENDERING_OBSERVER_CONTAINER),
# Note that not all the SVGContainerFrame classes should have the rendering
# observer flag, but the specific instances (used for <svg:defs>) should.
Frame("SVGContainerFrame", "None", SVG_RENDERING_OBSERVER_CONTAINER),
Frame("SVGFEContainerFrame", "SVGFEContainer", SVG_CONTENT),
Frame("SVGFEImageFrame", "SVGFEImage", SVG_CONTENT | LEAF),
Frame("SVGFELeafFrame", "SVGFELeaf", SVG_CONTENT | LEAF),
Frame("SVGFEUnstyledLeafFrame", "SVGFEUnstyledLeaf", SVG_CONTENT | LEAF),
Frame("SVGFilterFrame", "SVGFilter", SVG_RENDERING_OBSERVER_CONTAINER),
Frame("SVGForeignObjectFrame", "SVGForeignObject", SVG_CONTENT),
Frame("SVGGeometryFrame", "SVGGeometry", SVG_CONTENT | LEAF),
Frame("SVGGFrame", "SVGG", SVG_CONTAINER),
Frame("SVGImageFrame", "SVGImage", SVG_CONTENT | LEAF),
Frame("SVGInnerSVGFrame", "SVGInnerSVG", SVG_CONTAINER),
Frame(
"SVGLinearGradientFrame", "SVGLinearGradient", SVG_RENDERING_OBSERVER_CONTAINER
),
Frame("SVGMarkerFrame", "SVGMarker", SVG_RENDERING_OBSERVER_CONTAINER),
Frame("SVGMarkerAnonChildFrame", "SVGMarkerAnonChild", SVG_CONTAINER),
Frame("SVGMaskFrame", "SVGMask", SVG_RENDERING_OBSERVER_CONTAINER),
Frame(
"SVGOuterSVGFrame",
"SVGOuterSVG",
SVG_RENDERING_OBSERVER_CONTAINER
| {"Replaced", "ReplacedSizing", "SupportsContainLayoutAndPaint"},
),
Frame("SVGOuterSVGAnonChildFrame", "SVGOuterSVGAnonChild", SVG_CONTAINER),
Frame("SVGPatternFrame", "SVGPattern", SVG_RENDERING_OBSERVER_CONTAINER),
Frame(
"SVGRadialGradientFrame", "SVGRadialGradient", SVG_RENDERING_OBSERVER_CONTAINER
),
Frame("SVGStopFrame", "SVGStop", SVG_CONTENT | LEAF),
Frame("SVGSwitchFrame", "SVGSwitch", SVG_CONTAINER),
Frame("SVGSymbolFrame", "SVGSymbol", SVG_RENDERING_OBSERVER_CONTAINER),
Frame("SVGTextFrame", "SVGText", SVG_CONTAINER),
# Not a leaf, though it always has a ShadowRoot, so in practice light DOM
# children never render.
Frame("SVGUseFrame", "SVGUse", SVG_CONTAINER),
Frame("MiddleCroppingLabelFrame", "MiddleCroppingLabel", BLOCK | LEAF),
Frame("SVGViewFrame", "SVGView", SVG_CONTENT | LEAF),
Frame("nsTableCellFrame", "TableCell", TABLE_CELL),
Frame("nsTableColFrame", "TableCol", TABLE_PART),
Frame("nsTableColGroupFrame", "TableColGroup", TABLE_PART),
Frame("nsTableFrame", "Table", TABLE),
Frame("nsTableWrapperFrame", "TableWrapper", BLOCK),
Frame("nsTableRowFrame", "TableRow", TABLE_PART),
Frame("nsTableRowGroupFrame", "TableRowGroup", TABLE_PART),
Frame("nsTextControlFrame", "TextInput", REPLACED),
Frame("nsTextFrame", "Text", TEXT),
Frame("nsTreeBodyFrame", "SimpleXULLeaf", COMMON | LEAF),
Frame("nsVideoFrame", "HTMLVideo", REPLACED_SIZING),
Frame("nsAudioFrame", "HTMLVideo", REPLACED_SIZING - {"SupportsAspectRatio"}),
Frame("ViewportFrame", "Viewport", COMMON),
Frame("WBRFrame", "Wbr", COMMON | LEAF),
# Non-concrete classes (for FrameIID use)
AbstractFrame("ButtonControlFrame"),
AbstractFrame("MiddleCroppingBlockFrame"),
AbstractFrame("nsContainerFrame"),
AbstractFrame("nsLeafFrame"),
AbstractFrame("nsMathMLFrame"),
AbstractFrame("nsMathMLContainerFrame"),
AbstractFrame("nsRubyContentFrame"),
AbstractFrame("nsSplittableFrame"),
AbstractFrame("SVGDisplayContainerFrame"),
AbstractFrame("SVGGradientFrame"),
AbstractFrame("SVGPaintServerFrame"),
# Interfaces (for FrameIID use)
AbstractFrame("nsIAnonymousContentCreator"),
AbstractFrame("nsIMathMLFrame"),
AbstractFrame("nsIPercentBSizeObserver"),
AbstractFrame("nsIPopupContainer"),
AbstractFrame("nsIScrollbarMediator"),
AbstractFrame("nsIStatefulFrame"),
AbstractFrame("ISVGDisplayableFrame"),
AbstractFrame("ISVGSVGFrame"),
AbstractFrame("nsITableCellLayout"),
AbstractFrame("nsITableLayout"),
]