mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-12 14:37:50 +00:00
a910edbc6b
--HG-- extra : source : ec2b2922a741fc5a62bc76c716529eda1b7fe5d0 extra : amend_source : 95bc6d9805f2c0cb9c4d76fcebb5defdd6c69660
147 lines
4.5 KiB
C++
147 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=2 et sw=2 tw=80: */
|
|
/* This Source Code is subject to the terms of the Mozilla Public License
|
|
* version 2.0 (the "License"). You can obtain a copy of the License at
|
|
* http://mozilla.org/MPL/2.0/. */
|
|
|
|
/* rendering object for CSS "display: ruby-text-container" */
|
|
|
|
#include "nsRubyTextContainerFrame.h"
|
|
#include "nsPresContext.h"
|
|
#include "nsStyleContext.h"
|
|
#include "WritingModes.h"
|
|
#include "mozilla/UniquePtr.h"
|
|
|
|
using namespace mozilla;
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
// Frame class boilerplate
|
|
// =======================
|
|
|
|
NS_QUERYFRAME_HEAD(nsRubyTextContainerFrame)
|
|
NS_QUERYFRAME_ENTRY(nsRubyTextContainerFrame)
|
|
NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsRubyTextContainerFrame)
|
|
|
|
nsContainerFrame*
|
|
NS_NewRubyTextContainerFrame(nsIPresShell* aPresShell,
|
|
nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsRubyTextContainerFrame(aContext);
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
// nsRubyTextContainerFrame Method Implementations
|
|
// ===============================================
|
|
|
|
nsIAtom*
|
|
nsRubyTextContainerFrame::GetType() const
|
|
{
|
|
return nsGkAtoms::rubyTextContainerFrame;
|
|
}
|
|
|
|
#ifdef DEBUG_FRAME_DUMP
|
|
nsresult
|
|
nsRubyTextContainerFrame::GetFrameName(nsAString& aResult) const
|
|
{
|
|
return MakeFrameName(NS_LITERAL_STRING("RubyTextContainer"), aResult);
|
|
}
|
|
#endif
|
|
|
|
/* virtual */ bool
|
|
nsRubyTextContainerFrame::IsFrameOfType(uint32_t aFlags) const
|
|
{
|
|
if (aFlags & eSupportsCSSTransforms) {
|
|
return false;
|
|
}
|
|
return nsRubyTextContainerFrameSuper::IsFrameOfType(aFlags);
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsRubyTextContainerFrame::SetInitialChildList(ChildListID aListID,
|
|
nsFrameList& aChildList)
|
|
{
|
|
nsRubyTextContainerFrameSuper::SetInitialChildList(aListID, aChildList);
|
|
UpdateSpanFlag();
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsRubyTextContainerFrame::AppendFrames(ChildListID aListID,
|
|
nsFrameList& aFrameList)
|
|
{
|
|
nsRubyTextContainerFrameSuper::AppendFrames(aListID, aFrameList);
|
|
UpdateSpanFlag();
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsRubyTextContainerFrame::InsertFrames(ChildListID aListID,
|
|
nsIFrame* aPrevFrame,
|
|
nsFrameList& aFrameList)
|
|
{
|
|
nsRubyTextContainerFrameSuper::InsertFrames(aListID, aPrevFrame, aFrameList);
|
|
UpdateSpanFlag();
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsRubyTextContainerFrame::RemoveFrame(ChildListID aListID,
|
|
nsIFrame* aOldFrame)
|
|
{
|
|
nsRubyTextContainerFrameSuper::RemoveFrame(aListID, aOldFrame);
|
|
UpdateSpanFlag();
|
|
}
|
|
|
|
void
|
|
nsRubyTextContainerFrame::UpdateSpanFlag()
|
|
{
|
|
bool isSpan = false;
|
|
// The continuation checks are safe here because spans never break.
|
|
if (!GetPrevContinuation() && !GetNextContinuation()) {
|
|
nsIFrame* onlyChild = mFrames.OnlyChild();
|
|
if (onlyChild && onlyChild->IsPseudoFrame(GetContent())) {
|
|
// Per CSS Ruby spec, if the only child of an rtc frame is
|
|
// a pseudo rt frame, it spans all bases in the segment.
|
|
isSpan = true;
|
|
}
|
|
}
|
|
|
|
if (isSpan) {
|
|
AddStateBits(NS_RUBY_TEXT_CONTAINER_IS_SPAN);
|
|
} else {
|
|
RemoveStateBits(NS_RUBY_TEXT_CONTAINER_IS_SPAN);
|
|
}
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsRubyTextContainerFrame::Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
DO_GLOBAL_REFLOW_COUNT("nsRubyTextContainerFrame");
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
|
|
|
|
// Although a ruby text container may have continuations, returning
|
|
// NS_FRAME_COMPLETE here is still safe, since its parent, ruby frame,
|
|
// ignores the status, and continuations of the ruby base container
|
|
// will take care of our continuations.
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
WritingMode lineWM = aReflowState.mLineLayout->GetWritingMode();
|
|
aDesiredSize.SetSize(lineWM, mLineSize);
|
|
|
|
if (lineWM.IsVerticalRL()) {
|
|
nscoord deltaWidth = -mLineSize.Width(lineWM);
|
|
LogicalPoint translation(lineWM, 0, deltaWidth);
|
|
|
|
for (nsFrameList::Enumerator e(mFrames); !e.AtEnd(); e.Next()) {
|
|
nsIFrame* child = e.get();
|
|
MOZ_ASSERT(child->GetType() == nsGkAtoms::rubyTextFrame);
|
|
child->MovePositionBy(lineWM, translation);
|
|
nsContainerFrame::PlaceFrameView(child);
|
|
}
|
|
}
|
|
}
|