mirror of
https://github.com/mozilla/gecko-dev.git
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589 lines
24 KiB
C++
589 lines
24 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* a list of all frame state bits, for preprocessing */
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/******
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This file contains definitions for frame state bits -- values used
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in nsIFrame::mState -- and groups of frame state bits and which
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classes they apply to.
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There are two macros that can be defined before #including this
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file:
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FRAME_STATE_GROUP(name_, class_)
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This denotes the existence of a named group of frame state bits.
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name_ is the name of the group and class_ is the name of a frame
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class that uses the frame state bits that are a part of the group.
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The main group of frame state bits is named "Generic" and is
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defined to apply to nsIFrame, i.e. all frames. All of the global
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frame state bits -- bits 0..19 and 32..59 -- are in this group.
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FRAME_STATE_BIT(group_, value_, name_)
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This denotes the existence of a frame state bit. group_ indicates
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which group the bit belongs to, value_ is the bit number (0..63),
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and name_ is the name of the frame state bit constant.
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Note that if you add a new frame state group, you'll need to #include
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the header for its frame classes in nsFrameState.cpp and, if they don't
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already, add nsQueryFrame implementations (which can be DEBUG-only) to
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the frame classes.
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******/
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#ifndef FRAME_STATE_GROUP
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#define FRAME_STATE_GROUP(name_, class_) /* nothing */
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#define DEFINED_FRAME_STATE_GROUP
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#endif
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#ifndef FRAME_STATE_BIT
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#define FRAME_STATE_BIT(group_, value_, name_) /* nothing */
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#define DEFINED_FRAME_STATE_BIT
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#endif
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// == Frame state bits that apply to all frames ===============================
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FRAME_STATE_GROUP(Generic, nsIFrame)
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FRAME_STATE_BIT(Generic, 0, NS_FRAME_IN_REFLOW)
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// This bit is set when a frame is created. After it has been reflowed
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// once (during the DidReflow with a finished state) the bit is
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// cleared.
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FRAME_STATE_BIT(Generic, 1, NS_FRAME_FIRST_REFLOW)
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// For a continuation frame, if this bit is set, then this a "fluid"
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// continuation, i.e., across a line boundary. Otherwise it's a "hard"
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// continuation, e.g. a bidi continuation.
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FRAME_STATE_BIT(Generic, 2, NS_FRAME_IS_FLUID_CONTINUATION)
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// For nsIAnonymousContentCreator content that's created using ContentInfo.
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FRAME_STATE_BIT(Generic, 3, NS_FRAME_ANONYMOUSCONTENTCREATOR_CONTENT)
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// If this bit is set, then a reference to the frame is being held
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// elsewhere. The frame may want to send a notification when it is
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// destroyed to allow these references to be cleared.
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FRAME_STATE_BIT(Generic, 4, NS_FRAME_EXTERNAL_REFERENCE)
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// If this bit is set, this frame or one of its descendants has a
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// percentage height that depends on an ancestor of this frame.
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// (Or it did at one point in the past, since we don't necessarily clear
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// the bit when it's no longer needed; it's an optimization.)
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FRAME_STATE_BIT(Generic, 5, NS_FRAME_CONTAINS_RELATIVE_HEIGHT)
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// If this bit is set, then the frame corresponds to generated content
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FRAME_STATE_BIT(Generic, 6, NS_FRAME_GENERATED_CONTENT)
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// If this bit is set the frame is a continuation that is holding overflow,
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// i.e. it is a next-in-flow created to hold overflow after the box's
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// height has ended. This means the frame should be a) at the top of the
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// page and b) invisible: no borders, zero height, ignored in margin
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// collapsing, etc. See nsContainerFrame.h
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FRAME_STATE_BIT(Generic, 7, NS_FRAME_IS_OVERFLOW_CONTAINER)
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// If this bit is set, then the frame has been moved out of the flow,
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// e.g., it is absolutely positioned or floated
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FRAME_STATE_BIT(Generic, 8, NS_FRAME_OUT_OF_FLOW)
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// Frame can be an abs/fixed pos. container, if its style says so.
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// MarkAs[Not]AbsoluteContainingBlock will assert that this bit is set.
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// NS_FRAME_HAS_ABSPOS_CHILDREN must not be set when this bit is unset.
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FRAME_STATE_BIT(Generic, 9, NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)
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// If this bit is set, then the frame and _all_ of its descendant frames need
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// to be reflowed.
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// This bit is set when the frame is first created.
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// This bit is cleared by DidReflow after the required call to Reflow has
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// finished.
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// Do not set this bit yourself if you plan to pass the frame to
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// nsIPresShell::FrameNeedsReflow. Pass the right arguments instead.
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FRAME_STATE_BIT(Generic, 10, NS_FRAME_IS_DIRTY)
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// If this bit is set then the frame is too deep in the frame tree, and
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// we'll stop updating it and its children, to prevent stack overflow
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// and the like.
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FRAME_STATE_BIT(Generic, 11, NS_FRAME_TOO_DEEP_IN_FRAME_TREE)
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// If this bit is set, then either:
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// 1. the frame has at least one child that has the NS_FRAME_IS_DIRTY bit or
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// NS_FRAME_HAS_DIRTY_CHILDREN bit set, or
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// 2. the frame has had at least one child removed since the last reflow, or
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// 3. the frame has had a style change that requires the frame to be reflowed
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// but does not _necessarily_ require its descendants to be reflowed (e.g.,
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// for a 'height', 'width', 'margin', etc. change, it's up to the
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// applicable Reflow methods to decide whether the frame's children
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// _actually_ need to be reflowed).
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// If this bit is set but the NS_FRAME_IS_DIRTY is not set, then Reflow still
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// needs to be called on the frame, but Reflow will likely not do as much work
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// as it would if NS_FRAME_IS_DIRTY were set. See the comment documenting
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// nsFrame::Reflow for more.
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// This bit is cleared by DidReflow after the required call to Reflow has
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// finished.
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// Do not set this bit yourself if you plan to pass the frame to
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// nsIPresShell::FrameNeedsReflow. Pass the right arguments instead.
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FRAME_STATE_BIT(Generic, 12, NS_FRAME_HAS_DIRTY_CHILDREN)
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// If this bit is set, the frame has an associated view
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FRAME_STATE_BIT(Generic, 13, NS_FRAME_HAS_VIEW)
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// If this bit is set, the frame was created from anonymous content.
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FRAME_STATE_BIT(Generic, 14, NS_FRAME_INDEPENDENT_SELECTION)
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// If this bit is set, the frame is part of the mangled frame hierarchy
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// that results when an inline has been split because of a nested block.
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// See the comments in nsCSSFrameConstructor::ConstructInline for
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// more details.
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FRAME_STATE_BIT(Generic, 15, NS_FRAME_PART_OF_IBSPLIT)
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// If this bit is set, then transforms (e.g. CSS or SVG transforms) are allowed
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// to affect the frame, and a transform may currently be in affect. If this bit
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// is not set, then any transforms on the frame will be ignored.
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// This is used primarily in GetTransformMatrix to optimize for the
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// common case.
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FRAME_STATE_BIT(Generic, 16, NS_FRAME_MAY_BE_TRANSFORMED)
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// If this bit is set, the frame itself is a bidi continuation,
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// or is incomplete (its next sibling is a bidi continuation)
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FRAME_STATE_BIT(Generic, 17, NS_FRAME_IS_BIDI)
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// If this bit is set the frame has descendant with a view
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FRAME_STATE_BIT(Generic, 18, NS_FRAME_HAS_CHILD_WITH_VIEW)
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// If this bit is set, then reflow may be dispatched from the current
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// frame instead of the root frame.
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FRAME_STATE_BIT(Generic, 19, NS_FRAME_REFLOW_ROOT)
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// NOTE: Bits 20-31 and 60-63 of the frame state are reserved for specific
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// frame classes.
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// This bit is set on floats whose parent does not contain their
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// placeholder. This can happen for two reasons: (1) the float was
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// split, and this piece is the continuation, or (2) the entire float
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// didn't fit on the page.
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// Note that this bit is also shared by text frames for
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// TEXT_IS_IN_TOKEN_MATHML. That's OK because we only check the
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// NS_FRAME_IS_PUSHED_FLOAT bit on frames which we already know are
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// out-of-flow.
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FRAME_STATE_BIT(Generic, 32, NS_FRAME_IS_PUSHED_FLOAT)
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// This bit acts as a loop flag for recursive paint server drawing.
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FRAME_STATE_BIT(Generic, 33, NS_FRAME_DRAWING_AS_PAINTSERVER)
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// Frame is a display root and the retained layer tree needs to be updated
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// at the next paint via display list construction.
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// Only meaningful for display roots, so we don't really need a global state
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// bit; we could free up this bit with a little extra complexity.
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FRAME_STATE_BIT(Generic, 36, NS_FRAME_UPDATE_LAYER_TREE)
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// Frame can accept absolutely positioned children.
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FRAME_STATE_BIT(Generic, 37, NS_FRAME_HAS_ABSPOS_CHILDREN)
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// A display item for this frame has been painted as part of a PaintedLayer.
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FRAME_STATE_BIT(Generic, 38, NS_FRAME_PAINTED_THEBES)
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// Frame is or is a descendant of something with a fixed height, unless that
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// ancestor is a body or html element, and has no closer ancestor that is
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// overflow:auto or overflow:scroll.
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FRAME_STATE_BIT(Generic, 39, NS_FRAME_IN_CONSTRAINED_HEIGHT)
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// This is only set during painting
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FRAME_STATE_BIT(Generic, 40, NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO)
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// Is this frame a container for font size inflation, i.e., is it a
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// frame whose width is used to determine the inflation factor for
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// everything whose nearest ancestor container for this frame?
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FRAME_STATE_BIT(Generic, 41, NS_FRAME_FONT_INFLATION_CONTAINER)
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// Does this frame manage a region in which we do font size inflation,
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// i.e., roughly, is it an element establishing a new block formatting
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// context?
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FRAME_STATE_BIT(Generic, 42, NS_FRAME_FONT_INFLATION_FLOW_ROOT)
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// This bit is set on SVG frames that are laid out using SVG's coordinate
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// system based layout (as opposed to any of the CSS layout models). Note that
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// this does not include nsSVGOuterSVGFrame since it takes part is CSS layout.
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FRAME_STATE_BIT(Generic, 43, NS_FRAME_SVG_LAYOUT)
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// Is this frame allowed to have generated (::before/::after) content?
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FRAME_STATE_BIT(Generic, 44, NS_FRAME_MAY_HAVE_GENERATED_CONTENT)
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// This bit is set on frames that create ContainerLayers with component
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// alpha children. With BasicLayers we avoid creating these, so we mark
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// the frames for future reference.
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FRAME_STATE_BIT(Generic, 45, NS_FRAME_NO_COMPONENT_ALPHA)
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// The frame is a descendant of SVGTextFrame and is thus used for SVG
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// text layout.
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FRAME_STATE_BIT(Generic, 47, NS_FRAME_IS_SVG_TEXT)
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// Frame is marked as needing painting
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FRAME_STATE_BIT(Generic, 48, NS_FRAME_NEEDS_PAINT)
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// Frame has a descendant frame that needs painting - This includes
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// cross-doc children.
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FRAME_STATE_BIT(Generic, 49, NS_FRAME_DESCENDANT_NEEDS_PAINT)
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// Frame is a descendant of a popup
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FRAME_STATE_BIT(Generic, 50, NS_FRAME_IN_POPUP)
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// Frame has only descendant frames that needs painting - This includes
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// cross-doc children. This guarantees that all descendents have
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// NS_FRAME_NEEDS_PAINT and NS_FRAME_ALL_DESCENDANTS_NEED_PAINT, or they
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// have no display items.
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FRAME_STATE_BIT(Generic, 51, NS_FRAME_ALL_DESCENDANTS_NEED_PAINT)
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// Frame is marked as NS_FRAME_NEEDS_PAINT and also has an explicit
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// rect stored to invalidate.
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FRAME_STATE_BIT(Generic, 52, NS_FRAME_HAS_INVALID_RECT)
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// Frame is not displayed directly due to it being, or being under, an SVG
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// <defs> element or an SVG resource element (<mask>, <pattern>, etc.)
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FRAME_STATE_BIT(Generic, 53, NS_FRAME_IS_NONDISPLAY)
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// Frame has a LayerActivityProperty property
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FRAME_STATE_BIT(Generic, 54, NS_FRAME_HAS_LAYER_ACTIVITY_PROPERTY)
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// Frame has VR content, and needs VR display items created
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FRAME_STATE_BIT(Generic, 57, NS_FRAME_HAS_VR_CONTENT)
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// Set for all descendants of MathML sub/supscript elements (other than the
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// base frame) to indicate that the SSTY font feature should be used.
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FRAME_STATE_BIT(Generic, 58, NS_FRAME_MATHML_SCRIPT_DESCENDANT)
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// This state bit is set on frames within token MathML elements if the
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// token represents an <mi> tag whose inner HTML consists of a single
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// non-whitespace character to allow special rendering behaviour.
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FRAME_STATE_BIT(Generic, 59, NS_FRAME_IS_IN_SINGLE_CHAR_MI)
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// NOTE: Bits 20-31 and 60-63 of the frame state are reserved for specific
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// frame classes.
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// == Frame state bits that apply to box frames ===============================
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FRAME_STATE_GROUP(Box, nsBoxFrame)
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FRAME_STATE_BIT(Box, 20, NS_STATE_BOX_CHILD_RESERVED)
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FRAME_STATE_BIT(Box, 21, NS_STATE_STACK_NOT_POSITIONED)
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FRAME_STATE_BIT(Box, 22, NS_STATE_IS_HORIZONTAL)
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FRAME_STATE_BIT(Box, 23, NS_STATE_AUTO_STRETCH)
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FRAME_STATE_BIT(Box, 24, NS_STATE_IS_ROOT)
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FRAME_STATE_BIT(Box, 25, NS_STATE_CURRENTLY_IN_DEBUG)
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FRAME_STATE_BIT(Box, 26, NS_STATE_SET_TO_DEBUG)
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FRAME_STATE_BIT(Box, 27, NS_STATE_DEBUG_WAS_SET)
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FRAME_STATE_BIT(Box, 28, NS_STATE_MENU_HAS_POPUP_LIST)
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FRAME_STATE_BIT(Box, 29, NS_STATE_BOX_WRAPS_KIDS_IN_BLOCK)
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FRAME_STATE_BIT(Box, 30, NS_STATE_EQUAL_SIZE)
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FRAME_STATE_BIT(Box, 31, NS_STATE_IS_DIRECTION_NORMAL)
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FRAME_STATE_BIT(Box, 60, NS_FRAME_MOUSE_THROUGH_ALWAYS)
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FRAME_STATE_BIT(Box, 61, NS_FRAME_MOUSE_THROUGH_NEVER)
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// == Frame state bits that apply to flex container frames ====================
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FRAME_STATE_GROUP(FlexContainer, nsFlexContainerFrame)
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// Set for a flex container whose children have been reordered due to 'order'.
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// (Means that we have to be more thorough about checking them for sortedness.)
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FRAME_STATE_BIT(FlexContainer, 20, NS_STATE_FLEX_CHILDREN_REORDERED)
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// == Frame state bits that apply to SVG frames ===============================
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FRAME_STATE_GROUP(SVG, nsISVGChildFrame)
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FRAME_STATE_GROUP(SVG, nsSVGContainerFrame)
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FRAME_STATE_BIT(SVG, 20, NS_STATE_IS_OUTER_SVG)
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// If this bit is set, we are a <clipPath> element or descendant.
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FRAME_STATE_BIT(SVG, 21, NS_STATE_SVG_CLIPPATH_CHILD)
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// For SVG text, the NS_FRAME_IS_DIRTY and NS_FRAME_HAS_DIRTY_CHILDREN bits
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// indicate that our anonymous block child needs to be reflowed, and that
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// mPositions will likely need to be updated as a consequence. These are set,
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// for example, when the font-family changes. Sometimes we only need to
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// update mPositions though. For example if the x/y attributes change.
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// mPositioningDirty is used to indicate this latter "things are dirty" case
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// to allow us to avoid reflowing the anonymous block when it is not
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// necessary.
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FRAME_STATE_BIT(SVG, 22, NS_STATE_SVG_POSITIONING_DIRTY)
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// For text, whether the values from x/y/dx/dy attributes have any percentage
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// values that are used in determining the positions of glyphs. The value will
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// be true even if a positioning value is overridden by a descendant element's
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// attribute with a non-percentage length. For example,
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// NS_STATE_SVG_POSITIONING_MAY_USE_PERCENTAGES would be set for:
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//
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// <text x="10%"><tspan x="0">abc</tspan></text>
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//
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// Percentage values beyond the number of addressable characters, however, do
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// not influence NS_STATE_SVG_POSITIONING_MAY_USE_PERCENTAGES. For example,
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// NS_STATE_SVG_POSITIONING_MAY_USE_PERCENTAGES would be false for:
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//
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// <text x="10 20 30 40%">abc</text>
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//
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// NS_STATE_SVG_POSITIONING_MAY_USE_PERCENTAGES is used to determine whether
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// to recompute mPositions when the viewport size changes. So although the
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// first example above shows that NS_STATE_SVG_POSITIONING_MAY_USE_PERCENTAGES
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// can be true even if a viewport size change will not affect mPositions,
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// determining a completley accurate value for
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// NS_STATE_SVG_POSITIONING_MAY_USE_PERCENTAGES would require extra work that is
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// probably not worth it.
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FRAME_STATE_BIT(SVG, 23, NS_STATE_SVG_POSITIONING_MAY_USE_PERCENTAGES)
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FRAME_STATE_BIT(SVG, 24, NS_STATE_SVG_TEXT_IN_REFLOW)
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// == Frame state bits that apply to text frames ==============================
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FRAME_STATE_GROUP(Text, nsTextFrame)
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// -- Flags set during reflow -------------------------------------------------
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// nsTextFrame.cpp defines TEXT_REFLOW_FLAGS to be all of these bits.
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// This bit is set on the first frame in a continuation indicating
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// that it was chopped short because of :first-letter style.
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FRAME_STATE_BIT(Text, 20, TEXT_FIRST_LETTER)
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// This bit is set on frames that are logically adjacent to the start of the
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// line (i.e. no prior frame on line with actual displayed in-flow content).
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FRAME_STATE_BIT(Text, 21, TEXT_START_OF_LINE)
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// This bit is set on frames that are logically adjacent to the end of the
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// line (i.e. no following on line with actual displayed in-flow content).
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FRAME_STATE_BIT(Text, 22, TEXT_END_OF_LINE)
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// This bit is set on frames that end with a hyphenated break.
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FRAME_STATE_BIT(Text, 23, TEXT_HYPHEN_BREAK)
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// This bit is set on frames that trimmed trailing whitespace characters when
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// calculating their width during reflow.
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FRAME_STATE_BIT(Text, 24, TEXT_TRIMMED_TRAILING_WHITESPACE)
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// This bit is set on frames that have justification enabled. We record
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// this in a state bit because we don't always have the containing block
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// easily available to check text-align on.
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FRAME_STATE_BIT(Text, 25, TEXT_JUSTIFICATION_ENABLED)
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// Set this bit if the textframe has overflow area for IME/spellcheck underline.
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FRAME_STATE_BIT(Text, 26, TEXT_SELECTION_UNDERLINE_OVERFLOWED)
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// -- Cache bits for IsEmpty() ------------------------------------------------
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// nsTextFrame.cpp defines TEXT_WHITESPACE_FLAGS to be both of these bits.
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// Set this bit if the textframe is known to be only collapsible whitespace.
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FRAME_STATE_BIT(Text, 27, TEXT_IS_ONLY_WHITESPACE)
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// Set this bit if the textframe is known to be not only collapsible whitespace.
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FRAME_STATE_BIT(Text, 28, TEXT_ISNOT_ONLY_WHITESPACE)
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// -- Other state bits --------------------------------------------------------
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// Set when this text frame is mentioned in the userdata for mTextRun
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FRAME_STATE_BIT(Text, 29, TEXT_IN_TEXTRUN_USER_DATA)
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// This state bit is set on frames whose character data offsets need to be
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// fixed up
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FRAME_STATE_BIT(Text, 30, TEXT_OFFSETS_NEED_FIXING)
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// This state bit is set on frames that have some non-collapsed characters after
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// reflow
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FRAME_STATE_BIT(Text, 31, TEXT_HAS_NONCOLLAPSED_CHARACTERS)
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// This state bit is set on children of token MathML elements.
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// NOTE: TEXT_IS_IN_TOKEN_MATHML has a global state bit value that is shared
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// with NS_FRAME_IS_PUSHED_FLOAT.
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FRAME_STATE_BIT(Text, 32, TEXT_IS_IN_TOKEN_MATHML)
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// Set when this text frame is mentioned in the userdata for the
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// uninflated textrun property
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FRAME_STATE_BIT(Text, 60, TEXT_IN_UNINFLATED_TEXTRUN_USER_DATA)
|
|
|
|
FRAME_STATE_BIT(Text, 61, TEXT_HAS_FONT_INFLATION)
|
|
|
|
// Whether this frame is cached in the Offset Frame Cache
|
|
// (OffsetToFrameProperty)
|
|
FRAME_STATE_BIT(Text, 63, TEXT_IN_OFFSET_CACHE)
|
|
|
|
|
|
// == Frame state bits that apply to block frames =============================
|
|
|
|
FRAME_STATE_GROUP(Block, nsBlockFrame)
|
|
|
|
// See the meanings at http://www.mozilla.org/newlayout/doc/block-and-line.html
|
|
|
|
// Something in the block has changed that requires Bidi resolution to be
|
|
// performed on the block. This flag must be either set on all blocks in a
|
|
// continuation chain or none of them.
|
|
FRAME_STATE_BIT(Block, 20, NS_BLOCK_NEEDS_BIDI_RESOLUTION)
|
|
|
|
FRAME_STATE_BIT(Block, 21, NS_BLOCK_HAS_PUSHED_FLOATS)
|
|
FRAME_STATE_BIT(Block, 22, NS_BLOCK_MARGIN_ROOT)
|
|
FRAME_STATE_BIT(Block, 23, NS_BLOCK_FLOAT_MGR)
|
|
FRAME_STATE_BIT(Block, 24, NS_BLOCK_HAS_LINE_CURSOR)
|
|
FRAME_STATE_BIT(Block, 25, NS_BLOCK_HAS_OVERFLOW_LINES)
|
|
FRAME_STATE_BIT(Block, 26, NS_BLOCK_HAS_OVERFLOW_OUT_OF_FLOWS)
|
|
|
|
// Set on any block that has descendant frames in the normal
|
|
// flow with 'clear' set to something other than 'none'
|
|
// (including <BR CLEAR="..."> frames)
|
|
FRAME_STATE_BIT(Block, 27, NS_BLOCK_HAS_CLEAR_CHILDREN)
|
|
|
|
// NS_BLOCK_CLIP_PAGINATED_OVERFLOW is only set in paginated prescontexts, on
|
|
// blocks which were forced to not have scrollframes but still need to clip
|
|
// the display of their kids.
|
|
FRAME_STATE_BIT(Block, 28, NS_BLOCK_CLIP_PAGINATED_OVERFLOW)
|
|
|
|
// NS_BLOCK_HAS_FIRST_LETTER_STYLE means that the block has first-letter style,
|
|
// even if it has no actual first-letter frame among its descendants.
|
|
FRAME_STATE_BIT(Block, 29, NS_BLOCK_HAS_FIRST_LETTER_STYLE)
|
|
|
|
// NS_BLOCK_FRAME_HAS_OUTSIDE_BULLET and NS_BLOCK_FRAME_HAS_INSIDE_BULLET
|
|
// means the block has an associated bullet frame, they are mutually exclusive.
|
|
FRAME_STATE_BIT(Block, 30, NS_BLOCK_FRAME_HAS_OUTSIDE_BULLET)
|
|
FRAME_STATE_BIT(Block, 31, NS_BLOCK_FRAME_HAS_INSIDE_BULLET)
|
|
|
|
// This block has had a child marked dirty, so before we reflow we need
|
|
// to look through the lines to find any such children and mark
|
|
// appropriate lines dirty.
|
|
FRAME_STATE_BIT(Block, 61, NS_BLOCK_LOOK_FOR_DIRTY_FRAMES)
|
|
|
|
// Are our cached intrinsic widths intrinsic widths for font size
|
|
// inflation? i.e., what was the current state of
|
|
// GetPresContext()->mInflationDisabledForShrinkWrap at the time they
|
|
// were computed?
|
|
// nsBlockFrame is the only thing that caches intrinsic widths that
|
|
// needs to track this because it's the only thing that caches intrinsic
|
|
// widths that lives inside of things (form controls) that do intrinsic
|
|
// sizing with font inflation enabled.
|
|
FRAME_STATE_BIT(Block, 62, NS_BLOCK_FRAME_INTRINSICS_INFLATED)
|
|
|
|
// NS_BLOCK_HAS_FIRST_LETTER_CHILD means that there is an inflow first-letter
|
|
// frame among the block's descendants. If there is a floating first-letter
|
|
// frame, or the block has first-letter style but has no first letter, this
|
|
// bit is not set. This bit is set on the first continuation only.
|
|
FRAME_STATE_BIT(Block, 63, NS_BLOCK_HAS_FIRST_LETTER_CHILD)
|
|
|
|
|
|
// == Frame state bits that apply to bullet frames ============================
|
|
|
|
FRAME_STATE_GROUP(Bullet, nsBulletFrame)
|
|
|
|
FRAME_STATE_BIT(Block, 62, BULLET_FRAME_HAS_FONT_INFLATION)
|
|
FRAME_STATE_BIT(Block, 63, BULLET_FRAME_IMAGE_LOADING)
|
|
|
|
|
|
// == Frame state bits that apply to scroll frames ============================
|
|
|
|
FRAME_STATE_GROUP(Scroll, nsIScrollableFrame)
|
|
|
|
// When set, the next scroll operation on the scrollframe will invalidate its
|
|
// entire contents. Useful for text-overflow.
|
|
// This bit is cleared after each time the scrollframe is scrolled. Whoever
|
|
// needs to set it should set it again on each paint.
|
|
FRAME_STATE_BIT(Scroll, 20, NS_SCROLLFRAME_INVALIDATE_CONTENTS_ON_SCROLL)
|
|
|
|
|
|
// == Frame state bits that apply to image frames =============================
|
|
|
|
FRAME_STATE_GROUP(Image, nsImageFrame)
|
|
|
|
FRAME_STATE_BIT(Image, 20, IMAGE_SIZECONSTRAINED)
|
|
FRAME_STATE_BIT(Image, 21, IMAGE_GOTINITIALREFLOW)
|
|
|
|
|
|
// == Frame state bits that apply to inline frames ============================
|
|
|
|
FRAME_STATE_GROUP(Inline, nsInlineFrame)
|
|
|
|
/** In Bidi inline start (or end) margin/padding/border should be applied to
|
|
* first (or last) frame (or a continuation frame).
|
|
* This state value shows if this frame is first (or last) continuation
|
|
* or not.
|
|
*/
|
|
|
|
FRAME_STATE_BIT(Inline, 21, NS_INLINE_FRAME_BIDI_VISUAL_STATE_IS_SET)
|
|
FRAME_STATE_BIT(Inline, 22, NS_INLINE_FRAME_BIDI_VISUAL_IS_FIRST)
|
|
FRAME_STATE_BIT(Inline, 23, NS_INLINE_FRAME_BIDI_VISUAL_IS_LAST)
|
|
|
|
|
|
// == Frame state bits that apply to placeholder frames =======================
|
|
|
|
FRAME_STATE_GROUP(Placeholder, nsPlaceholderFrame)
|
|
|
|
// Frame state bits that are used to keep track of what this is a
|
|
// placeholder for.
|
|
|
|
FRAME_STATE_BIT(Placeholder, 20, PLACEHOLDER_FOR_FLOAT)
|
|
FRAME_STATE_BIT(Placeholder, 21, PLACEHOLDER_FOR_ABSPOS)
|
|
FRAME_STATE_BIT(Placeholder, 22, PLACEHOLDER_FOR_FIXEDPOS)
|
|
FRAME_STATE_BIT(Placeholder, 23, PLACEHOLDER_FOR_POPUP)
|
|
|
|
|
|
// == Frame state bits that apply to table cell frames ========================
|
|
|
|
FRAME_STATE_GROUP(TableCell, nsTableCellFrame)
|
|
|
|
FRAME_STATE_BIT(TableCell, 28, NS_TABLE_CELL_HAS_PCT_OVER_HEIGHT)
|
|
FRAME_STATE_BIT(TableCell, 29, NS_TABLE_CELL_HAD_SPECIAL_REFLOW)
|
|
FRAME_STATE_BIT(TableCell, 31, NS_TABLE_CELL_CONTENT_EMPTY)
|
|
|
|
|
|
// == Frame state bits that apply to table column frames ======================
|
|
|
|
// Bits 28-31 on nsTableColFrames are used to store the column type.
|
|
|
|
|
|
// == Frame state bits that apply to table column group frames ================
|
|
|
|
// Bits 30-31 on nsTableColGroupFrames are used to store the column type.
|
|
|
|
|
|
// == Frame state bits that apply to table rows and table row group frames ====
|
|
|
|
FRAME_STATE_GROUP(TableRowAndRowGroup, nsTableRowFrame)
|
|
FRAME_STATE_GROUP(TableRowAndRowGroup, nsTableRowGroupFrame)
|
|
|
|
// see nsTableRowGroupFrame::InitRepeatedFrame
|
|
FRAME_STATE_BIT(TableRowAndRowGroup, 28, NS_REPEATED_ROW_OR_ROWGROUP)
|
|
|
|
|
|
// == Frame state bits that apply to table row frames =========================
|
|
|
|
FRAME_STATE_GROUP(TableRow, nsTableRowFrame)
|
|
|
|
// Indicates whether this row has any cells that have
|
|
// non-auto-height and rowspan=1
|
|
FRAME_STATE_BIT(TableRow, 29, NS_ROW_HAS_CELL_WITH_STYLE_HEIGHT)
|
|
|
|
FRAME_STATE_BIT(TableRow, 30, NS_TABLE_ROW_HAS_UNPAGINATED_HEIGHT)
|
|
|
|
|
|
// == Frame state bits that apply to table row group frames ===================
|
|
|
|
FRAME_STATE_GROUP(TableRowGroup, nsTableRowGroupFrame)
|
|
|
|
FRAME_STATE_BIT(TableRowGroup, 27, NS_ROWGROUP_HAS_ROW_CURSOR)
|
|
FRAME_STATE_BIT(TableRowGroup, 30, NS_ROWGROUP_HAS_STYLE_HEIGHT)
|
|
|
|
// thead or tfoot should be repeated on every printed page
|
|
FRAME_STATE_BIT(TableRowGroup, 31, NS_ROWGROUP_REPEATABLE)
|
|
|
|
|
|
#ifdef DEFINED_FRAME_STATE_GROUP
|
|
#undef DEFINED_FRAME_STATE_GROUP
|
|
#undef FRAME_STATE_GROUP
|
|
#endif
|
|
|
|
#ifdef DEFINED_FRAME_STATE_BIT
|
|
#undef DEFINED_FRAME_STATE_BIT
|
|
#undef FRAME_STATE_BIT
|
|
#endif
|