forked from mirrors/gecko-dev
f101e2077d
In the description of the mTruncated bit, its purpose is the same as calling SetInlineLineBreakBeforeAndReset(). We've removed all its usages in previous patches, so the bit is no longer needed. Differential Revision: https://phabricator.services.mozilla.com/D151461
402 lines
15 KiB
C++
402 lines
15 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "nsHTMLButtonControlFrame.h"
|
|
|
|
#include "mozilla/PresShell.h"
|
|
#include "nsContainerFrame.h"
|
|
#include "nsIFormControlFrame.h"
|
|
#include "nsIFrameInlines.h"
|
|
#include "nsPresContext.h"
|
|
#include "nsGkAtoms.h"
|
|
#include "nsButtonFrameRenderer.h"
|
|
#include "nsCSSAnonBoxes.h"
|
|
#include "nsNameSpaceManager.h"
|
|
#include "nsDisplayList.h"
|
|
#include <algorithm>
|
|
|
|
using namespace mozilla;
|
|
|
|
nsContainerFrame* NS_NewHTMLButtonControlFrame(PresShell* aPresShell,
|
|
ComputedStyle* aStyle) {
|
|
return new (aPresShell)
|
|
nsHTMLButtonControlFrame(aStyle, aPresShell->GetPresContext());
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsHTMLButtonControlFrame)
|
|
|
|
nsHTMLButtonControlFrame::nsHTMLButtonControlFrame(ComputedStyle* aStyle,
|
|
nsPresContext* aPresContext,
|
|
nsIFrame::ClassID aID)
|
|
: nsContainerFrame(aStyle, aPresContext, aID) {}
|
|
|
|
nsHTMLButtonControlFrame::~nsHTMLButtonControlFrame() = default;
|
|
|
|
void nsHTMLButtonControlFrame::Init(nsIContent* aContent,
|
|
nsContainerFrame* aParent,
|
|
nsIFrame* aPrevInFlow) {
|
|
nsContainerFrame::Init(aContent, aParent, aPrevInFlow);
|
|
mRenderer.SetFrame(this, PresContext());
|
|
}
|
|
|
|
NS_QUERYFRAME_HEAD(nsHTMLButtonControlFrame)
|
|
NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
|
|
NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
|
|
|
|
#ifdef ACCESSIBILITY
|
|
a11y::AccType nsHTMLButtonControlFrame::AccessibleType() {
|
|
return a11y::eHTMLButtonType;
|
|
}
|
|
#endif
|
|
|
|
void nsHTMLButtonControlFrame::SetFocus(bool aOn, bool aRepaint) {}
|
|
|
|
nsresult nsHTMLButtonControlFrame::HandleEvent(nsPresContext* aPresContext,
|
|
WidgetGUIEvent* aEvent,
|
|
nsEventStatus* aEventStatus) {
|
|
// if disabled do nothing
|
|
if (mRenderer.isDisabled()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// mouse clicks are handled by content
|
|
// we don't want our children to get any events. So just pass it to frame.
|
|
return nsIFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
|
|
}
|
|
|
|
bool nsHTMLButtonControlFrame::ShouldClipPaintingToBorderBox() {
|
|
return IsInput() || StyleDisplay()->mOverflowX != StyleOverflow::Visible;
|
|
}
|
|
|
|
void nsHTMLButtonControlFrame::BuildDisplayList(
|
|
nsDisplayListBuilder* aBuilder, const nsDisplayListSet& aLists) {
|
|
nsDisplayList onTop(aBuilder);
|
|
if (IsVisibleForPainting()) {
|
|
// Clip the button itself to its border area for event hit testing.
|
|
Maybe<DisplayListClipState::AutoSaveRestore> eventClipState;
|
|
if (aBuilder->IsForEventDelivery()) {
|
|
eventClipState.emplace(aBuilder);
|
|
nsRect rect(aBuilder->ToReferenceFrame(this), GetSize());
|
|
nscoord radii[8];
|
|
bool hasRadii = GetBorderRadii(radii);
|
|
eventClipState->ClipContainingBlockDescendants(
|
|
rect, hasRadii ? radii : nullptr);
|
|
}
|
|
|
|
mRenderer.DisplayButton(aBuilder, aLists.BorderBackground(), &onTop);
|
|
}
|
|
|
|
nsDisplayListCollection set(aBuilder);
|
|
|
|
{
|
|
DisplayListClipState::AutoSaveRestore clipState(aBuilder);
|
|
|
|
if (ShouldClipPaintingToBorderBox()) {
|
|
nsMargin border = StyleBorder()->GetComputedBorder();
|
|
nsRect rect(aBuilder->ToReferenceFrame(this), GetSize());
|
|
rect.Deflate(border);
|
|
nscoord radii[8];
|
|
bool hasRadii = GetPaddingBoxBorderRadii(radii);
|
|
clipState.ClipContainingBlockDescendants(rect,
|
|
hasRadii ? radii : nullptr);
|
|
}
|
|
|
|
BuildDisplayListForChild(aBuilder, mFrames.FirstChild(), set,
|
|
DisplayChildFlag::ForcePseudoStackingContext);
|
|
}
|
|
|
|
// Put the foreground outline and focus rects on top of the children
|
|
set.Content()->AppendToTop(&onTop);
|
|
set.MoveTo(aLists);
|
|
|
|
DisplayOutline(aBuilder, aLists);
|
|
|
|
// to draw border when selected in editor
|
|
DisplaySelectionOverlay(aBuilder, aLists.Content());
|
|
}
|
|
|
|
nscoord nsHTMLButtonControlFrame::GetMinISize(gfxContext* aRenderingContext) {
|
|
nscoord result;
|
|
DISPLAY_MIN_INLINE_SIZE(this, result);
|
|
if (StyleDisplay()->GetContainSizeAxes().mIContained) {
|
|
result = 0;
|
|
} else {
|
|
nsIFrame* kid = mFrames.FirstChild();
|
|
result = nsLayoutUtils::IntrinsicForContainer(aRenderingContext, kid,
|
|
IntrinsicISizeType::MinISize);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
nscoord nsHTMLButtonControlFrame::GetPrefISize(gfxContext* aRenderingContext) {
|
|
nscoord result;
|
|
DISPLAY_PREF_INLINE_SIZE(this, result);
|
|
if (StyleDisplay()->GetContainSizeAxes().mIContained) {
|
|
result = 0;
|
|
} else {
|
|
nsIFrame* kid = mFrames.FirstChild();
|
|
result = nsLayoutUtils::IntrinsicForContainer(
|
|
aRenderingContext, kid, IntrinsicISizeType::PrefISize);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void nsHTMLButtonControlFrame::Reflow(nsPresContext* aPresContext,
|
|
ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) {
|
|
MarkInReflow();
|
|
DO_GLOBAL_REFLOW_COUNT("nsHTMLButtonControlFrame");
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
|
|
MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
|
|
|
|
// Reflow the child
|
|
nsIFrame* firstKid = mFrames.FirstChild();
|
|
|
|
MOZ_ASSERT(firstKid, "Button should have a child frame for its contents");
|
|
MOZ_ASSERT(!firstKid->GetNextSibling(),
|
|
"Button should have exactly one child frame");
|
|
MOZ_ASSERT(
|
|
firstKid->Style()->GetPseudoType() == PseudoStyleType::buttonContent,
|
|
"Button's child frame has unexpected pseudo type!");
|
|
|
|
// XXXbz Eventually we may want to check-and-bail if
|
|
// !aReflowInput.ShouldReflowAllKids() &&
|
|
// !firstKid->IsSubtreeDirty().
|
|
// We'd need to cache our ascent for that, of course.
|
|
|
|
// Reflow the contents of the button.
|
|
// (This populates our aDesiredSize, too.)
|
|
ReflowButtonContents(aPresContext, aDesiredSize, aReflowInput, firstKid);
|
|
|
|
if (!ShouldClipPaintingToBorderBox()) {
|
|
ConsiderChildOverflow(aDesiredSize.mOverflowAreas, firstKid);
|
|
}
|
|
// else, we ignore child overflow -- anything that overflows beyond our
|
|
// own border-box will get clipped when painting.
|
|
|
|
FinishReflowWithAbsoluteFrames(aPresContext, aDesiredSize, aReflowInput,
|
|
aStatus);
|
|
|
|
// We're always complete and we don't support overflow containers
|
|
// so we shouldn't have a next-in-flow ever.
|
|
aStatus.Reset();
|
|
MOZ_ASSERT(!GetNextInFlow());
|
|
}
|
|
|
|
void nsHTMLButtonControlFrame::ReflowButtonContents(
|
|
nsPresContext* aPresContext, ReflowOutput& aButtonDesiredSize,
|
|
const ReflowInput& aButtonReflowInput, nsIFrame* aFirstKid) {
|
|
WritingMode wm = GetWritingMode();
|
|
LogicalSize availSize = aButtonReflowInput.ComputedSize(wm);
|
|
availSize.BSize(wm) = NS_UNCONSTRAINEDSIZE;
|
|
|
|
// shorthand for a value we need to use in a bunch of places
|
|
const LogicalMargin& clbp =
|
|
aButtonReflowInput.ComputedLogicalBorderPadding(wm);
|
|
|
|
LogicalPoint childPos(wm);
|
|
childPos.I(wm) = clbp.IStart(wm);
|
|
availSize.ISize(wm) = std::max(availSize.ISize(wm), 0);
|
|
|
|
ReflowInput contentsReflowInput(aPresContext, aButtonReflowInput, aFirstKid,
|
|
availSize);
|
|
|
|
nsReflowStatus contentsReflowStatus;
|
|
ReflowOutput contentsDesiredSize(aButtonReflowInput);
|
|
childPos.B(wm) = 0; // This will be set properly later, after reflowing the
|
|
// child to determine its size.
|
|
|
|
const LayoutFrameType frameType = aFirstKid->Type();
|
|
if (frameType == LayoutFrameType::FlexContainer ||
|
|
frameType == LayoutFrameType::GridContainer) {
|
|
contentsReflowInput.ComputedBSize() = aButtonReflowInput.ComputedBSize();
|
|
contentsReflowInput.ComputedMinBSize() =
|
|
aButtonReflowInput.ComputedMinBSize();
|
|
contentsReflowInput.ComputedMaxBSize() =
|
|
aButtonReflowInput.ComputedMaxBSize();
|
|
}
|
|
|
|
// We just pass a dummy containerSize here, as the child will be
|
|
// repositioned later by FinishReflowChild.
|
|
nsSize dummyContainerSize;
|
|
ReflowChild(aFirstKid, aPresContext, contentsDesiredSize, contentsReflowInput,
|
|
wm, childPos, dummyContainerSize, ReflowChildFlags::Default,
|
|
contentsReflowStatus);
|
|
MOZ_ASSERT(contentsReflowStatus.IsComplete(),
|
|
"We gave button-contents frame unconstrained available height, "
|
|
"so it should be complete");
|
|
|
|
// Compute the button's content-box size:
|
|
LogicalSize buttonContentBox(wm);
|
|
if (aButtonReflowInput.ComputedBSize() != NS_UNCONSTRAINEDSIZE) {
|
|
// Button has a fixed block-size -- that's its content-box bSize.
|
|
buttonContentBox.BSize(wm) = aButtonReflowInput.ComputedBSize();
|
|
} else if (aButtonReflowInput.mStyleDisplay->GetContainSizeAxes()
|
|
.mBContained) {
|
|
// Button is intrinsically sized and has size containment in block axis.
|
|
// It should have a BSize that is either zero or the minimum
|
|
// specified BSize.
|
|
buttonContentBox.BSize(wm) = aButtonReflowInput.ComputedMinBSize();
|
|
} else {
|
|
// Button is intrinsically sized -- it should shrinkwrap the
|
|
// button-contents' bSize:
|
|
buttonContentBox.BSize(wm) = contentsDesiredSize.BSize(wm);
|
|
|
|
// Make sure we obey min/max-bSize in the case when we're doing intrinsic
|
|
// sizing (we get it for free when we have a non-intrinsic
|
|
// aButtonReflowInput.ComputedBSize()). Note that we do this before
|
|
// adjusting for borderpadding, since mComputedMaxBSize and
|
|
// mComputedMinBSize are content bSizes.
|
|
buttonContentBox.BSize(wm) = NS_CSS_MINMAX(
|
|
buttonContentBox.BSize(wm), aButtonReflowInput.ComputedMinBSize(),
|
|
aButtonReflowInput.ComputedMaxBSize());
|
|
}
|
|
if (aButtonReflowInput.ComputedISize() != NS_UNCONSTRAINEDSIZE) {
|
|
buttonContentBox.ISize(wm) = aButtonReflowInput.ComputedISize();
|
|
} else if (aButtonReflowInput.mStyleDisplay->GetContainSizeAxes()
|
|
.mIContained) {
|
|
buttonContentBox.ISize(wm) = aButtonReflowInput.ComputedMinISize();
|
|
} else {
|
|
buttonContentBox.ISize(wm) = contentsDesiredSize.ISize(wm);
|
|
buttonContentBox.ISize(wm) = NS_CSS_MINMAX(
|
|
buttonContentBox.ISize(wm), aButtonReflowInput.ComputedMinISize(),
|
|
aButtonReflowInput.ComputedMaxISize());
|
|
}
|
|
|
|
// Center child in the block-direction in the button
|
|
// (technically, inside of the button's focus-padding area)
|
|
nscoord extraSpace =
|
|
buttonContentBox.BSize(wm) - contentsDesiredSize.BSize(wm);
|
|
|
|
childPos.B(wm) = std::max(0, extraSpace / 2);
|
|
|
|
// Adjust childPos.B() to be in terms of the button's frame-rect:
|
|
childPos.B(wm) += clbp.BStart(wm);
|
|
|
|
nsSize containerSize = (buttonContentBox + clbp.Size(wm)).GetPhysicalSize(wm);
|
|
|
|
// Place the child
|
|
FinishReflowChild(aFirstKid, aPresContext, contentsDesiredSize,
|
|
&contentsReflowInput, wm, childPos, containerSize,
|
|
ReflowChildFlags::Default);
|
|
|
|
// Make sure we have a useful 'ascent' value for the child
|
|
if (contentsDesiredSize.BlockStartAscent() ==
|
|
ReflowOutput::ASK_FOR_BASELINE) {
|
|
WritingMode wm = aButtonReflowInput.GetWritingMode();
|
|
contentsDesiredSize.SetBlockStartAscent(aFirstKid->GetLogicalBaseline(wm));
|
|
}
|
|
|
|
// OK, we're done with the child frame.
|
|
// Use what we learned to populate the button frame's reflow metrics.
|
|
// * Button's height & width are content-box size + border-box contribution:
|
|
aButtonDesiredSize.SetSize(
|
|
wm,
|
|
LogicalSize(wm, aButtonReflowInput.ComputedISize() + clbp.IStartEnd(wm),
|
|
buttonContentBox.BSize(wm) + clbp.BStartEnd(wm)));
|
|
|
|
// * Button's ascent is its child's ascent, plus the child's block-offset
|
|
// within our frame... unless it's orthogonal, in which case we'll use the
|
|
// contents inline-size as an approximation for now.
|
|
// XXX is there a better strategy? should we include border-padding?
|
|
if (!aButtonReflowInput.mStyleDisplay->IsContainLayout()) {
|
|
if (aButtonDesiredSize.GetWritingMode().IsOrthogonalTo(wm)) {
|
|
aButtonDesiredSize.SetBlockStartAscent(contentsDesiredSize.ISize(wm));
|
|
} else {
|
|
aButtonDesiredSize.SetBlockStartAscent(
|
|
contentsDesiredSize.BlockStartAscent() + childPos.B(wm));
|
|
}
|
|
} // else: we're layout-contained, and so we have no baseline.
|
|
|
|
aButtonDesiredSize.SetOverflowAreasToDesiredBounds();
|
|
}
|
|
|
|
bool nsHTMLButtonControlFrame::GetVerticalAlignBaseline(
|
|
mozilla::WritingMode aWM, nscoord* aBaseline) const {
|
|
nsIFrame* inner = mFrames.FirstChild();
|
|
if (MOZ_UNLIKELY(inner->GetWritingMode().IsOrthogonalTo(aWM))) {
|
|
return false;
|
|
}
|
|
if (!inner->GetVerticalAlignBaseline(aWM, aBaseline)) {
|
|
// <input type=color> has an empty block frame as inner frame
|
|
*aBaseline = inner->SynthesizeBaselineBOffsetFromBorderBox(
|
|
aWM, BaselineSharingGroup::First);
|
|
}
|
|
nscoord innerBStart = inner->BStart(aWM, GetSize());
|
|
*aBaseline += innerBStart;
|
|
return true;
|
|
}
|
|
|
|
bool nsHTMLButtonControlFrame::GetNaturalBaselineBOffset(
|
|
mozilla::WritingMode aWM, BaselineSharingGroup aBaselineGroup,
|
|
nscoord* aBaseline) const {
|
|
if (StyleDisplay()->IsContainLayout()) {
|
|
return false;
|
|
}
|
|
|
|
nsIFrame* inner = mFrames.FirstChild();
|
|
if (MOZ_UNLIKELY(inner->GetWritingMode().IsOrthogonalTo(aWM))) {
|
|
return false;
|
|
}
|
|
if (!inner->GetNaturalBaselineBOffset(aWM, aBaselineGroup, aBaseline)) {
|
|
// <input type=color> has an empty block frame as inner frame
|
|
*aBaseline =
|
|
inner->SynthesizeBaselineBOffsetFromBorderBox(aWM, aBaselineGroup);
|
|
}
|
|
nscoord innerBStart = inner->BStart(aWM, GetSize());
|
|
if (aBaselineGroup == BaselineSharingGroup::First) {
|
|
*aBaseline += innerBStart;
|
|
} else {
|
|
*aBaseline += BSize(aWM) - (innerBStart + inner->BSize(aWM));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
nsresult nsHTMLButtonControlFrame::SetFormProperty(nsAtom* aName,
|
|
const nsAString& aValue) {
|
|
if (nsGkAtoms::value == aName) {
|
|
return mContent->AsElement()->SetAttr(kNameSpaceID_None, nsGkAtoms::value,
|
|
aValue, true);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
ComputedStyle* nsHTMLButtonControlFrame::GetAdditionalComputedStyle(
|
|
int32_t aIndex) const {
|
|
return mRenderer.GetComputedStyle(aIndex);
|
|
}
|
|
|
|
void nsHTMLButtonControlFrame::SetAdditionalComputedStyle(
|
|
int32_t aIndex, ComputedStyle* aComputedStyle) {
|
|
mRenderer.SetComputedStyle(aIndex, aComputedStyle);
|
|
}
|
|
|
|
void nsHTMLButtonControlFrame::AppendDirectlyOwnedAnonBoxes(
|
|
nsTArray<OwnedAnonBox>& aResult) {
|
|
MOZ_ASSERT(mFrames.FirstChild(), "Must have our button-content anon box");
|
|
MOZ_ASSERT(!mFrames.FirstChild()->GetNextSibling(),
|
|
"Must only have our button-content anon box");
|
|
aResult.AppendElement(OwnedAnonBox(mFrames.FirstChild()));
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
void nsHTMLButtonControlFrame::AppendFrames(ChildListID aListID,
|
|
nsFrameList& aFrameList) {
|
|
MOZ_CRASH("unsupported operation");
|
|
}
|
|
|
|
void nsHTMLButtonControlFrame::InsertFrames(
|
|
ChildListID aListID, nsIFrame* aPrevFrame,
|
|
const nsLineList::iterator* aPrevFrameLine, nsFrameList& aFrameList) {
|
|
MOZ_CRASH("unsupported operation");
|
|
}
|
|
|
|
void nsHTMLButtonControlFrame::RemoveFrame(ChildListID aListID,
|
|
nsIFrame* aOldFrame) {
|
|
MOZ_CRASH("unsupported operation");
|
|
}
|
|
#endif
|