зеркало из https://github.com/mozilla/gecko-dev.git
726 строки
29 KiB
C++
726 строки
29 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#include "nsFieldSetFrame.h"
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#include <algorithm>
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#include "gfxContext.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/Likely.h"
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#include "mozilla/Maybe.h"
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#include "nsCSSAnonBoxes.h"
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#include "nsCSSRendering.h"
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#include "nsDisplayList.h"
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#include "nsGkAtoms.h"
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#include "nsIFrameInlines.h"
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#include "nsLayoutUtils.h"
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#include "nsLegendFrame.h"
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#include "nsStyleConsts.h"
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using namespace mozilla;
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using namespace mozilla::gfx;
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using namespace mozilla::layout;
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nsContainerFrame* NS_NewFieldSetFrame(nsIPresShell* aPresShell,
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ComputedStyle* aStyle) {
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return new (aPresShell) nsFieldSetFrame(aStyle);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsFieldSetFrame)
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nsFieldSetFrame::nsFieldSetFrame(ComputedStyle* aStyle)
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: nsContainerFrame(aStyle, kClassID), mLegendRect(GetWritingMode()) {
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mLegendSpace = 0;
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}
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nsRect nsFieldSetFrame::VisualBorderRectRelativeToSelf() const {
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WritingMode wm = GetWritingMode();
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LogicalRect r(wm, LogicalPoint(wm, 0, 0), GetLogicalSize(wm));
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nsSize containerSize = r.Size(wm).GetPhysicalSize(wm);
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if (nsIFrame* legend = GetLegend()) {
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nscoord legendSize = legend->GetLogicalSize(wm).BSize(wm);
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auto legendMargin = legend->GetLogicalUsedMargin(wm);
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nscoord legendStartMargin = legendMargin.BStart(wm);
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nscoord legendEndMargin = legendMargin.BEnd(wm);
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nscoord border = GetUsedBorder().Side(wm.PhysicalSide(eLogicalSideBStart));
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// Calculate the offset from the border area block-axis start edge needed to
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// center-align our border with the legend's border-box (in the block-axis).
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nscoord off = (legendStartMargin + legendSize / 2) - border / 2;
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// We don't want to display our border above our border area.
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if (off > nscoord(0)) {
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nscoord marginBoxSize = legendStartMargin + legendSize + legendEndMargin;
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if (marginBoxSize > border) {
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// We don't want to display our border below the legend's margin-box,
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// so we align it to the block-axis end if that happens.
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nscoord overflow = off + border - marginBoxSize;
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if (overflow > nscoord(0)) {
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off -= overflow;
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}
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r.BStart(wm) += off;
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r.BSize(wm) -= off;
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}
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}
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}
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return r.GetPhysicalRect(wm, containerSize);
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}
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nsIFrame* nsFieldSetFrame::GetInner() const {
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nsIFrame* last = mFrames.LastChild();
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if (last && last->Style()->GetPseudo() == nsCSSAnonBoxes::fieldsetContent()) {
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return last;
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}
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MOZ_ASSERT(mFrames.LastChild() == mFrames.FirstChild());
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return nullptr;
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}
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nsIFrame* nsFieldSetFrame::GetLegend() const {
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if (mFrames.FirstChild() == GetInner()) {
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MOZ_ASSERT(mFrames.LastChild() == mFrames.FirstChild());
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return nullptr;
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}
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MOZ_ASSERT(mFrames.FirstChild() &&
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mFrames.FirstChild()->GetContentInsertionFrame()->IsLegendFrame());
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return mFrames.FirstChild();
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}
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class nsDisplayFieldSetBorder final : public nsDisplayItem {
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public:
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nsDisplayFieldSetBorder(nsDisplayListBuilder* aBuilder,
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nsFieldSetFrame* aFrame)
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: nsDisplayItem(aBuilder, aFrame) {
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MOZ_COUNT_CTOR(nsDisplayFieldSetBorder);
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}
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#ifdef NS_BUILD_REFCNT_LOGGING
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virtual ~nsDisplayFieldSetBorder() {
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MOZ_COUNT_DTOR(nsDisplayFieldSetBorder);
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}
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#endif
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virtual void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) override;
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virtual nsDisplayItemGeometry* AllocateGeometry(
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nsDisplayListBuilder* aBuilder) override;
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virtual void ComputeInvalidationRegion(
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nsDisplayListBuilder* aBuilder, const nsDisplayItemGeometry* aGeometry,
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nsRegion* aInvalidRegion) const override;
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bool CreateWebRenderCommands(
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mozilla::wr::DisplayListBuilder& aBuilder,
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mozilla::wr::IpcResourceUpdateQueue& aResources,
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const StackingContextHelper& aSc,
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mozilla::layers::RenderRootStateManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) override;
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virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder,
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bool* aSnap) const override;
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NS_DISPLAY_DECL_NAME("FieldSetBorder", TYPE_FIELDSET_BORDER_BACKGROUND)
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};
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void nsDisplayFieldSetBorder::Paint(nsDisplayListBuilder* aBuilder,
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gfxContext* aCtx) {
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image::ImgDrawResult result =
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static_cast<nsFieldSetFrame*>(mFrame)->PaintBorder(
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aBuilder, *aCtx, ToReferenceFrame(), GetPaintRect());
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nsDisplayItemGenericImageGeometry::UpdateDrawResult(this, result);
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}
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nsDisplayItemGeometry* nsDisplayFieldSetBorder::AllocateGeometry(
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nsDisplayListBuilder* aBuilder) {
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return new nsDisplayItemGenericImageGeometry(this, aBuilder);
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}
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void nsDisplayFieldSetBorder::ComputeInvalidationRegion(
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nsDisplayListBuilder* aBuilder, const nsDisplayItemGeometry* aGeometry,
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nsRegion* aInvalidRegion) const {
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auto geometry =
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static_cast<const nsDisplayItemGenericImageGeometry*>(aGeometry);
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if (aBuilder->ShouldSyncDecodeImages() &&
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geometry->ShouldInvalidateToSyncDecodeImages()) {
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bool snap;
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aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
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}
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nsDisplayItem::ComputeInvalidationRegion(aBuilder, aGeometry, aInvalidRegion);
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}
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nsRect nsDisplayFieldSetBorder::GetBounds(nsDisplayListBuilder* aBuilder,
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bool* aSnap) const {
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// Just go ahead and claim our frame's overflow rect as the bounds, because we
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// may have border-image-outset or other features that cause borders to extend
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// outside the border rect. We could try to duplicate all the complexity
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// nsDisplayBorder has here, but keeping things in sync would be a pain, and
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// this code is not typically performance-sensitive.
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*aSnap = false;
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return Frame()->GetVisualOverflowRectRelativeToSelf() + ToReferenceFrame();
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}
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bool nsDisplayFieldSetBorder::CreateWebRenderCommands(
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mozilla::wr::DisplayListBuilder& aBuilder,
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mozilla::wr::IpcResourceUpdateQueue& aResources,
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const StackingContextHelper& aSc,
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mozilla::layers::RenderRootStateManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) {
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auto frame = static_cast<nsFieldSetFrame*>(mFrame);
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auto offset = ToReferenceFrame();
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nsRect rect;
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if (nsIFrame* legend = frame->GetLegend()) {
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rect = frame->VisualBorderRectRelativeToSelf() + offset;
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// Legends require a "negative" clip around the text, which WR doesn't
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// support yet.
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nsRect legendRect = legend->GetNormalRect() + offset;
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if (!legendRect.IsEmpty()) {
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return false;
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}
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} else {
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rect = nsRect(offset, frame->GetRect().Size());
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}
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ImgDrawResult drawResult = nsCSSRendering::CreateWebRenderCommandsForBorder(
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this, mFrame, rect, aBuilder, aResources, aSc, aManager,
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aDisplayListBuilder);
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if (drawResult == ImgDrawResult::NOT_SUPPORTED) {
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return false;
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}
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nsDisplayItemGenericImageGeometry::UpdateDrawResult(this, drawResult);
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return true;
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};
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void nsFieldSetFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) {
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// Paint our background and border in a special way.
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// REVIEW: We don't really need to check frame emptiness here; if it's empty,
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// the background/border display item won't do anything, and if it isn't
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// empty, we need to paint the outline
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if (!(GetStateBits() & NS_FRAME_IS_OVERFLOW_CONTAINER) &&
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IsVisibleForPainting()) {
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if (StyleEffects()->mBoxShadow) {
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aLists.BorderBackground()->AppendToTop(
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MakeDisplayItem<nsDisplayBoxShadowOuter>(aBuilder, this));
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}
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nsDisplayBackgroundImage::AppendBackgroundItemsToTop(
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aBuilder, this, VisualBorderRectRelativeToSelf(),
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aLists.BorderBackground(),
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/* aAllowWillPaintBorderOptimization = */ false);
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aLists.BorderBackground()->AppendToTop(
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MakeDisplayItem<nsDisplayFieldSetBorder>(aBuilder, this));
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DisplayOutlineUnconditional(aBuilder, aLists);
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DO_GLOBAL_REFLOW_COUNT_DSP("nsFieldSetFrame");
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}
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if (GetPrevInFlow()) {
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DisplayOverflowContainers(aBuilder, aLists);
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}
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nsDisplayListCollection contentDisplayItems(aBuilder);
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if (nsIFrame* inner = GetInner()) {
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// Collect the inner frame's display items into their own collection.
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// We need to be calling BuildDisplayList on it before the legend in
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// case it contains out-of-flow frames whose placeholders are in the
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// legend. However, we want the inner frame's display items to be
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// after the legend's display items in z-order, so we need to save them
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// and append them later.
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BuildDisplayListForChild(aBuilder, inner, contentDisplayItems);
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}
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if (nsIFrame* legend = GetLegend()) {
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// The legend's background goes on our BlockBorderBackgrounds list because
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// it's a block child.
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nsDisplayListSet set(aLists, aLists.BlockBorderBackgrounds());
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BuildDisplayListForChild(aBuilder, legend, set);
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}
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// Put the inner frame's display items on the master list. Note that this
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// moves its border/background display items to our BorderBackground() list,
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// which isn't really correct, but it's OK because the inner frame is
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// anonymous and can't have its own border and background.
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contentDisplayItems.MoveTo(aLists);
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}
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image::ImgDrawResult nsFieldSetFrame::PaintBorder(
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nsDisplayListBuilder* aBuilder, gfxContext& aRenderingContext, nsPoint aPt,
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const nsRect& aDirtyRect) {
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// If the border is smaller than the legend, move the border down
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// to be centered on the legend. We call VisualBorderRectRelativeToSelf() to
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// compute the border positioning.
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// FIXME: This means border-radius clamping is incorrect; we should
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// override nsIFrame::GetBorderRadii.
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nsRect rect = VisualBorderRectRelativeToSelf() + aPt;
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nsPresContext* presContext = PresContext();
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PaintBorderFlags borderFlags = aBuilder->ShouldSyncDecodeImages()
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? PaintBorderFlags::SYNC_DECODE_IMAGES
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: PaintBorderFlags();
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ImgDrawResult result = ImgDrawResult::SUCCESS;
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nsCSSRendering::PaintBoxShadowInner(presContext, aRenderingContext, this,
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rect);
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if (nsIFrame* legend = GetLegend()) {
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// We want to avoid drawing our border under the legend, so clip out the
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// legend while drawing our border. We don't want to use mLegendRect here,
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// because we do want to draw our border under the legend's inline-start and
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// -end margins. And we use GetNormalRect(), not GetRect(), because we do
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// not want relative positioning applied to the legend to change how our
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// border looks.
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nsRect legendRect = legend->GetNormalRect() + aPt;
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// Make sure we clip all of the border in case the legend is smaller.
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nscoord borderTopWidth = GetUsedBorder().top;
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if (legendRect.height < borderTopWidth) {
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legendRect.height = borderTopWidth;
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legendRect.y = aPt.y;
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}
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DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
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// We set up a clip path which has our rect clockwise and the legend rect
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// counterclockwise, with FILL_WINDING as the fill rule. That will allow us
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// to paint within our rect but outside the legend rect. For "our rect" we
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// use our visual overflow rect (relative to ourselves, so it's not affected
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// by transforms), because we can have borders sticking outside our border
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// box (e.g. due to border-image-outset).
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RefPtr<PathBuilder> pathBuilder =
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drawTarget->CreatePathBuilder(FillRule::FILL_WINDING);
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int32_t appUnitsPerDevPixel = presContext->AppUnitsPerDevPixel();
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AppendRectToPath(
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pathBuilder,
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NSRectToSnappedRect(GetVisualOverflowRectRelativeToSelf() + aPt,
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appUnitsPerDevPixel, *drawTarget),
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true);
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AppendRectToPath(
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pathBuilder,
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NSRectToSnappedRect(legendRect, appUnitsPerDevPixel, *drawTarget),
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false);
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RefPtr<Path> clipPath = pathBuilder->Finish();
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aRenderingContext.Save();
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aRenderingContext.Clip(clipPath);
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result &= nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, rect, mComputedStyle,
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borderFlags);
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aRenderingContext.Restore();
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} else {
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result &= nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, nsRect(aPt, mRect.Size()),
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mComputedStyle, borderFlags);
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}
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return result;
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}
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nscoord nsFieldSetFrame::GetIntrinsicISize(
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gfxContext* aRenderingContext, nsLayoutUtils::IntrinsicISizeType aType) {
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nscoord legendWidth = 0;
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nscoord contentWidth = 0;
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if (!StyleDisplay()->IsContainSize()) {
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// Both inner and legend are children, and if the fieldset is
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// size-contained they should not contribute to the intrinsic size.
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if (nsIFrame* legend = GetLegend()) {
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legendWidth = nsLayoutUtils::IntrinsicForContainer(aRenderingContext,
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legend, aType);
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}
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if (nsIFrame* inner = GetInner()) {
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// Ignore padding on the inner, since the padding will be applied to the
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// outer instead, and the padding computed for the inner is wrong
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// for percentage padding.
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contentWidth = nsLayoutUtils::IntrinsicForContainer(
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aRenderingContext, inner, aType, nsLayoutUtils::IGNORE_PADDING);
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}
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}
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return std::max(legendWidth, contentWidth);
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}
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nscoord nsFieldSetFrame::GetMinISize(gfxContext* aRenderingContext) {
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nscoord result = 0;
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DISPLAY_MIN_INLINE_SIZE(this, result);
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result = GetIntrinsicISize(aRenderingContext, nsLayoutUtils::MIN_ISIZE);
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return result;
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}
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nscoord nsFieldSetFrame::GetPrefISize(gfxContext* aRenderingContext) {
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nscoord result = 0;
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DISPLAY_PREF_INLINE_SIZE(this, result);
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result = GetIntrinsicISize(aRenderingContext, nsLayoutUtils::PREF_ISIZE);
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return result;
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}
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/* virtual */
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void nsFieldSetFrame::Reflow(nsPresContext* aPresContext,
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ReflowOutput& aDesiredSize,
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const ReflowInput& aReflowInput,
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nsReflowStatus& aStatus) {
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MarkInReflow();
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DO_GLOBAL_REFLOW_COUNT("nsFieldSetFrame");
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DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
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MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
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NS_WARNING_ASSERTION(aReflowInput.ComputedISize() != NS_INTRINSICSIZE,
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"Should have a precomputed inline-size!");
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nsOverflowAreas ocBounds;
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nsReflowStatus ocStatus;
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if (GetPrevInFlow()) {
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ReflowOverflowContainerChildren(aPresContext, aReflowInput, ocBounds, 0,
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ocStatus);
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}
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//------------ Handle Incremental Reflow -----------------
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bool reflowInner;
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bool reflowLegend;
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nsIFrame* legend = GetLegend();
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nsIFrame* inner = GetInner();
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if (aReflowInput.ShouldReflowAllKids()) {
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reflowInner = inner != nullptr;
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reflowLegend = legend != nullptr;
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} else {
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reflowInner = inner && NS_SUBTREE_DIRTY(inner);
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reflowLegend = legend && NS_SUBTREE_DIRTY(legend);
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}
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// We don't allow fieldsets to break vertically. If we did, we'd
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// need logic here to push and pull overflow frames.
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// Since we're not applying our padding in this frame, we need to add it here
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// to compute the available width for our children.
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WritingMode wm = GetWritingMode();
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WritingMode innerWM = inner ? inner->GetWritingMode() : wm;
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WritingMode legendWM = legend ? legend->GetWritingMode() : wm;
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LogicalSize innerAvailSize = aReflowInput.ComputedSizeWithPadding(innerWM);
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LogicalSize legendAvailSize = aReflowInput.ComputedSize(legendWM);
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innerAvailSize.BSize(innerWM) = legendAvailSize.BSize(legendWM) =
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NS_UNCONSTRAINEDSIZE;
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// get our border and padding
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LogicalMargin border = aReflowInput.ComputedLogicalBorderPadding() -
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aReflowInput.ComputedLogicalPadding();
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// Figure out how big the legend is if there is one.
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// get the legend's margin
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LogicalMargin legendMargin(wm);
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// reflow the legend only if needed
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Maybe<ReflowInput> legendReflowInput;
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if (legend) {
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legendReflowInput.emplace(aPresContext, aReflowInput, legend,
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legendAvailSize);
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}
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if (reflowLegend) {
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ReflowOutput legendDesiredSize(aReflowInput);
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// We'll move the legend to its proper place later, so the position
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// and containerSize passed here are unimportant.
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const nsSize dummyContainerSize;
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ReflowChild(legend, aPresContext, legendDesiredSize, *legendReflowInput, wm,
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LogicalPoint(wm), dummyContainerSize, NS_FRAME_NO_MOVE_FRAME,
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aStatus);
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#ifdef NOISY_REFLOW
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printf(" returned (%d, %d)\n", legendDesiredSize.Width(),
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legendDesiredSize.Height());
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#endif
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// Calculate the legend's margin-box rectangle.
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legendMargin = legend->GetLogicalUsedMargin(wm);
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mLegendRect = LogicalRect(
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wm, 0, 0, legendDesiredSize.ISize(wm) + legendMargin.IStartEnd(wm),
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legendDesiredSize.BSize(wm) + legendMargin.BStartEnd(wm));
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nscoord oldSpace = mLegendSpace;
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mLegendSpace = 0;
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nscoord borderBStart = border.BStart(wm);
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if (mLegendRect.BSize(wm) > borderBStart) {
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// mLegendSpace is the space to subtract from our content-box size below.
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mLegendSpace = mLegendRect.BSize(wm) - borderBStart;
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} else {
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// Calculate the border-box position that would center the legend's
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// border-box within the fieldset border:
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nscoord off = (borderBStart - legendDesiredSize.BSize(wm)) / 2;
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off -= legendMargin.BStart(wm); // convert to a margin-box position
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if (off > nscoord(0)) {
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// Align the legend to the end if center-aligning it would overflow.
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nscoord overflow = off + mLegendRect.BSize(wm) - borderBStart;
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if (overflow > nscoord(0)) {
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off -= overflow;
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}
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mLegendRect.BStart(wm) += off;
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}
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}
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// if the legend space changes then we need to reflow the
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// content area as well.
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if (mLegendSpace != oldSpace && inner) {
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reflowInner = true;
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}
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|
|
FinishReflowChild(legend, aPresContext, legendDesiredSize,
|
|
legendReflowInput.ptr(), wm, LogicalPoint(wm),
|
|
dummyContainerSize, NS_FRAME_NO_MOVE_FRAME);
|
|
} else if (!legend) {
|
|
mLegendRect.SetEmpty();
|
|
mLegendSpace = 0;
|
|
} else {
|
|
// mLegendSpace and mLegendRect haven't changed, but we need
|
|
// the used margin when placing the legend.
|
|
legendMargin = legend->GetLogicalUsedMargin(wm);
|
|
}
|
|
|
|
// This containerSize is incomplete as yet: it does not include the size
|
|
// of the |inner| frame itself.
|
|
nsSize containerSize =
|
|
(LogicalSize(wm, 0, mLegendSpace) + border.Size(wm)).GetPhysicalSize(wm);
|
|
// reflow the content frame only if needed
|
|
if (reflowInner) {
|
|
ReflowInput kidReflowInput(aPresContext, aReflowInput, inner,
|
|
innerAvailSize, nullptr,
|
|
ReflowInput::CALLER_WILL_INIT);
|
|
// Override computed padding, in case it's percentage padding
|
|
kidReflowInput.Init(aPresContext, nullptr, nullptr,
|
|
&aReflowInput.ComputedPhysicalPadding());
|
|
// Our child is "height:100%" but we actually want its height to be reduced
|
|
// by the amount of content-height the legend is eating up, unless our
|
|
// height is unconstrained (in which case the child's will be too).
|
|
if (aReflowInput.ComputedBSize() != NS_UNCONSTRAINEDSIZE) {
|
|
kidReflowInput.SetComputedBSize(
|
|
std::max(0, aReflowInput.ComputedBSize() - mLegendSpace));
|
|
}
|
|
|
|
if (aReflowInput.ComputedMinBSize() > 0) {
|
|
kidReflowInput.ComputedMinBSize() =
|
|
std::max(0, aReflowInput.ComputedMinBSize() - mLegendSpace);
|
|
}
|
|
|
|
if (aReflowInput.ComputedMaxBSize() != NS_UNCONSTRAINEDSIZE) {
|
|
kidReflowInput.ComputedMaxBSize() =
|
|
std::max(0, aReflowInput.ComputedMaxBSize() - mLegendSpace);
|
|
}
|
|
|
|
ReflowOutput kidDesiredSize(kidReflowInput);
|
|
// Reflow the frame
|
|
NS_ASSERTION(
|
|
kidReflowInput.ComputedPhysicalMargin() == nsMargin(0, 0, 0, 0),
|
|
"Margins on anonymous fieldset child not supported!");
|
|
LogicalPoint pt(wm, border.IStart(wm), border.BStart(wm) + mLegendSpace);
|
|
|
|
// We don't know the correct containerSize until we have reflowed |inner|,
|
|
// so we use a dummy value for now; FinishReflowChild will fix the position
|
|
// if necessary.
|
|
const nsSize dummyContainerSize;
|
|
ReflowChild(inner, aPresContext, kidDesiredSize, kidReflowInput, wm, pt,
|
|
dummyContainerSize, 0, aStatus);
|
|
|
|
// Update containerSize to account for size of the inner frame, so that
|
|
// FinishReflowChild can position it correctly.
|
|
containerSize += kidDesiredSize.PhysicalSize();
|
|
FinishReflowChild(inner, aPresContext, kidDesiredSize, &kidReflowInput, wm,
|
|
pt, containerSize, 0);
|
|
NS_FRAME_TRACE_REFLOW_OUT("FieldSet::Reflow", aStatus);
|
|
} else if (inner) {
|
|
// |inner| didn't need to be reflowed but we do need to include its size
|
|
// in containerSize.
|
|
containerSize += inner->GetSize();
|
|
}
|
|
|
|
LogicalRect contentRect(wm);
|
|
if (inner) {
|
|
// We don't support margins on inner, so our content rect is just the
|
|
// inner's border-box. (We don't really care about container size at this
|
|
// point, as we'll figure out the actual positioning later.)
|
|
contentRect = inner->GetLogicalRect(wm, containerSize);
|
|
}
|
|
|
|
// Our content rect must fill up the available width
|
|
LogicalSize availSize = aReflowInput.ComputedSizeWithPadding(wm);
|
|
if (availSize.ISize(wm) > contentRect.ISize(wm)) {
|
|
contentRect.ISize(wm) = innerAvailSize.ISize(wm);
|
|
}
|
|
|
|
if (legend) {
|
|
// The legend is positioned inline-wards within the inner's content rect
|
|
// (so that padding on the fieldset affects the legend position).
|
|
LogicalRect innerContentRect = contentRect;
|
|
innerContentRect.Deflate(wm, aReflowInput.ComputedLogicalPadding());
|
|
// If the inner content rect is larger than the legend, we can align the
|
|
// legend.
|
|
if (innerContentRect.ISize(wm) > mLegendRect.ISize(wm)) {
|
|
// NOTE legend @align values are: left/right/center/top/bottom.
|
|
// GetLogicalAlign converts left/right to start/end for the given WM.
|
|
// @see HTMLLegendElement::ParseAttribute, nsLegendFrame::GetLogicalAlign
|
|
int32_t align =
|
|
static_cast<nsLegendFrame*>(legend->GetContentInsertionFrame())
|
|
->GetLogicalAlign(wm);
|
|
switch (align) {
|
|
case NS_STYLE_TEXT_ALIGN_END:
|
|
mLegendRect.IStart(wm) =
|
|
innerContentRect.IEnd(wm) - mLegendRect.ISize(wm);
|
|
break;
|
|
case NS_STYLE_TEXT_ALIGN_CENTER:
|
|
// Note: rounding removed; there doesn't seem to be any need
|
|
mLegendRect.IStart(wm) =
|
|
innerContentRect.IStart(wm) +
|
|
(innerContentRect.ISize(wm) - mLegendRect.ISize(wm)) / 2;
|
|
break;
|
|
case NS_STYLE_TEXT_ALIGN_START:
|
|
case NS_STYLE_VERTICAL_ALIGN_TOP:
|
|
case NS_STYLE_VERTICAL_ALIGN_BOTTOM:
|
|
mLegendRect.IStart(wm) = innerContentRect.IStart(wm);
|
|
break;
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("unexpected GetLogicalAlign value");
|
|
}
|
|
} else {
|
|
// otherwise just start-align it.
|
|
mLegendRect.IStart(wm) = innerContentRect.IStart(wm);
|
|
}
|
|
|
|
// place the legend
|
|
LogicalRect actualLegendRect = mLegendRect;
|
|
actualLegendRect.Deflate(wm, legendMargin);
|
|
LogicalPoint actualLegendPos(actualLegendRect.Origin(wm));
|
|
|
|
// Note that legend's writing mode may be different from the fieldset's,
|
|
// so we need to convert offsets before applying them to it (bug 1134534).
|
|
LogicalMargin offsets =
|
|
legendReflowInput->ComputedLogicalOffsets().ConvertTo(
|
|
wm, legendReflowInput->GetWritingMode());
|
|
ReflowInput::ApplyRelativePositioning(legend, wm, offsets, &actualLegendPos,
|
|
containerSize);
|
|
|
|
legend->SetPosition(wm, actualLegendPos, containerSize);
|
|
nsContainerFrame::PositionFrameView(legend);
|
|
nsContainerFrame::PositionChildViews(legend);
|
|
}
|
|
|
|
// Return our size and our result.
|
|
LogicalSize finalSize(
|
|
wm, contentRect.ISize(wm) + border.IStartEnd(wm),
|
|
mLegendSpace + border.BStartEnd(wm) + (inner ? inner->BSize(wm) : 0));
|
|
if (aReflowInput.mStyleDisplay->IsContainSize()) {
|
|
// If we're size-contained, then we must set finalSize to be what
|
|
// it'd be if we had no children (i.e. if we had no legend and if
|
|
// 'inner' were empty). Note: normally the fieldset's own padding
|
|
// (which we still must honor) would be accounted for as part of
|
|
// inner's size (see kidReflowInput.Init() call above). So: since
|
|
// we're disregarding sizing information from 'inner', we need to
|
|
// account for that padding ourselves here.
|
|
nscoord contentBoxBSize =
|
|
aReflowInput.ComputedBSize() == NS_UNCONSTRAINEDSIZE
|
|
? aReflowInput.ApplyMinMaxBSize(0)
|
|
: aReflowInput.ComputedBSize();
|
|
finalSize.BSize(wm) =
|
|
contentBoxBSize +
|
|
aReflowInput.ComputedLogicalBorderPadding().BStartEnd(wm);
|
|
}
|
|
aDesiredSize.SetSize(wm, finalSize);
|
|
aDesiredSize.SetOverflowAreasToDesiredBounds();
|
|
|
|
if (legend) {
|
|
ConsiderChildOverflow(aDesiredSize.mOverflowAreas, legend);
|
|
}
|
|
if (inner) {
|
|
ConsiderChildOverflow(aDesiredSize.mOverflowAreas, inner);
|
|
}
|
|
|
|
// Merge overflow container bounds and status.
|
|
aDesiredSize.mOverflowAreas.UnionWith(ocBounds);
|
|
aStatus.MergeCompletionStatusFrom(ocStatus);
|
|
|
|
FinishReflowWithAbsoluteFrames(aPresContext, aDesiredSize, aReflowInput,
|
|
aStatus);
|
|
|
|
InvalidateFrame();
|
|
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aDesiredSize);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
void nsFieldSetFrame::SetInitialChildList(ChildListID aListID,
|
|
nsFrameList& aChildList) {
|
|
nsContainerFrame::SetInitialChildList(aListID, aChildList);
|
|
MOZ_ASSERT(aListID != kPrincipalList || GetInner(),
|
|
"Setting principal child list should populate our inner frame");
|
|
}
|
|
void nsFieldSetFrame::AppendFrames(ChildListID aListID,
|
|
nsFrameList& aFrameList) {
|
|
MOZ_CRASH("nsFieldSetFrame::AppendFrames not supported");
|
|
}
|
|
|
|
void nsFieldSetFrame::InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,
|
|
nsFrameList& aFrameList) {
|
|
MOZ_CRASH("nsFieldSetFrame::InsertFrames not supported");
|
|
}
|
|
|
|
void nsFieldSetFrame::RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) {
|
|
MOZ_CRASH("nsFieldSetFrame::RemoveFrame not supported");
|
|
}
|
|
#endif
|
|
|
|
#ifdef ACCESSIBILITY
|
|
a11y::AccType nsFieldSetFrame::AccessibleType() {
|
|
return a11y::eHTMLGroupboxType;
|
|
}
|
|
#endif
|
|
|
|
nscoord nsFieldSetFrame::GetLogicalBaseline(WritingMode aWM) const {
|
|
switch (StyleDisplay()->mDisplay) {
|
|
case mozilla::StyleDisplay::Grid:
|
|
case mozilla::StyleDisplay::InlineGrid:
|
|
case mozilla::StyleDisplay::Flex:
|
|
case mozilla::StyleDisplay::InlineFlex:
|
|
return BaselineBOffset(aWM, BaselineSharingGroup::eFirst,
|
|
AlignmentContext::eInline);
|
|
default:
|
|
return BSize(aWM) - BaselineBOffset(aWM, BaselineSharingGroup::eLast,
|
|
AlignmentContext::eInline);
|
|
}
|
|
}
|
|
|
|
bool nsFieldSetFrame::GetVerticalAlignBaseline(WritingMode aWM,
|
|
nscoord* aBaseline) const {
|
|
if (StyleDisplay()->IsContainLayout()) {
|
|
// If we are layout-contained, our child 'inner' should not
|
|
// affect how we calculate our baseline.
|
|
return false;
|
|
}
|
|
nsIFrame* inner = GetInner();
|
|
MOZ_ASSERT(!inner->GetWritingMode().IsOrthogonalTo(aWM));
|
|
if (!inner->GetVerticalAlignBaseline(aWM, aBaseline)) {
|
|
return false;
|
|
}
|
|
nscoord innerBStart = inner->BStart(aWM, GetSize());
|
|
*aBaseline += innerBStart;
|
|
return true;
|
|
}
|
|
|
|
bool nsFieldSetFrame::GetNaturalBaselineBOffset(
|
|
WritingMode aWM, BaselineSharingGroup aBaselineGroup,
|
|
nscoord* aBaseline) const {
|
|
if (StyleDisplay()->IsContainLayout()) {
|
|
// If we are layout-contained, our child 'inner' should not
|
|
// affect how we calculate our baseline.
|
|
return false;
|
|
}
|
|
nsIFrame* inner = GetInner();
|
|
MOZ_ASSERT(!inner->GetWritingMode().IsOrthogonalTo(aWM));
|
|
if (!inner->GetNaturalBaselineBOffset(aWM, aBaselineGroup, aBaseline)) {
|
|
return false;
|
|
}
|
|
nscoord innerBStart = inner->BStart(aWM, GetSize());
|
|
if (aBaselineGroup == BaselineSharingGroup::eFirst) {
|
|
*aBaseline += innerBStart;
|
|
} else {
|
|
*aBaseline += BSize(aWM) - (innerBStart + inner->BSize(aWM));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void nsFieldSetFrame::AppendDirectlyOwnedAnonBoxes(
|
|
nsTArray<OwnedAnonBox>& aResult) {
|
|
if (nsIFrame* kid = GetInner()) {
|
|
aResult.AppendElement(OwnedAnonBox(kid));
|
|
}
|
|
}
|