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/* -*- 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 */
* This frame type is used for input type=date, time, month, week, and
* datetime-local.
#include "nsDateTimeControlFrame.h"
#include "mozilla/PresShell.h"
#include "nsLayoutUtils.h"
#include "nsTextControlFrame.h"
using namespace mozilla;
using namespace mozilla::dom;
nsIFrame* NS_NewDateTimeControlFrame(PresShell* aPresShell,
ComputedStyle* aStyle) {
return new (aPresShell)
nsDateTimeControlFrame(aStyle, aPresShell->GetPresContext());
nsDateTimeControlFrame::nsDateTimeControlFrame(ComputedStyle* aStyle,
nsPresContext* aPresContext)
: nsContainerFrame(aStyle, aPresContext, kClassID) {}
nscoord nsDateTimeControlFrame::GetMinISize(gfxContext* aRenderingContext) {
nsIFrame* kid = mFrames.FirstChild();
if (!kid) {
return 0;
return nsLayoutUtils::IntrinsicForContainer(aRenderingContext, kid,
nscoord nsDateTimeControlFrame::GetPrefISize(gfxContext* aRenderingContext) {
nsIFrame* kid = mFrames.FirstChild();
if (!kid) {
return 0;
return nsLayoutUtils::IntrinsicForContainer(aRenderingContext, kid,
Maybe<nscoord> nsDateTimeControlFrame::GetNaturalBaselineBOffset(
WritingMode aWM, BaselineSharingGroup aBaselineGroup,
BaselineExportContext) const {
return nsTextControlFrame::GetSingleLineTextControlBaseline(
this, mFirstBaseline, aWM, aBaselineGroup);
void nsDateTimeControlFrame::Reflow(nsPresContext* aPresContext,
ReflowOutput& aDesiredSize,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus) {
MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
("enter nsDateTimeControlFrame::Reflow: availSize=%d,%d",
aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight()));
NS_ASSERTION(mFrames.GetLength() <= 1,
"There should be no more than 1 frames");
const WritingMode myWM = aReflowInput.GetWritingMode();
auto baseline = nsTextControlFrame::ComputeBaseline(
this, aReflowInput, /* aForSingleLineControl = */ true);
mFirstBaseline = baseline.valueOr(NS_INTRINSIC_ISIZE_UNKNOWN);
if (baseline) {
// The ISize of our content box, which is the available ISize
// for our anonymous content:
const nscoord contentBoxISize = aReflowInput.ComputedISize();
nscoord contentBoxBSize = aReflowInput.ComputedBSize();
// Figure out our border-box sizes as well (by adding borderPadding to
// content-box sizes):
const auto borderPadding = aReflowInput.ComputedLogicalBorderPadding(myWM);
const nscoord borderBoxISize =
contentBoxISize + borderPadding.IStartEnd(myWM);
nscoord borderBoxBSize;
if (contentBoxBSize != NS_UNCONSTRAINEDSIZE) {
borderBoxBSize = contentBoxBSize + borderPadding.BStartEnd(myWM);
} // else, we'll figure out borderBoxBSize after we resolve contentBoxBSize.
nsIFrame* inputAreaFrame = mFrames.FirstChild();
if (!inputAreaFrame) { // display:none?
if (contentBoxBSize == NS_UNCONSTRAINEDSIZE) {
contentBoxBSize = 0;
borderBoxBSize = borderPadding.BStartEnd(myWM);
} else {
ReflowOutput childDesiredSize(aReflowInput);
WritingMode wm = inputAreaFrame->GetWritingMode();
LogicalSize availSize = aReflowInput.ComputedSize(wm);
ReflowInput childReflowInput(aPresContext, aReflowInput, inputAreaFrame,
// Convert input area margin into my own writing-mode (in case it differs):
LogicalMargin childMargin = childReflowInput.ComputedLogicalMargin(myWM);
// offsets of input area frame within this frame:
LogicalPoint childOffset =
borderPadding.StartOffset(myWM) + childMargin.StartOffset(myWM);
nsReflowStatus childStatus;
// We initially reflow the child with a dummy containerSize; positioning
// will be fixed later.
const nsSize dummyContainerSize;
ReflowChild(inputAreaFrame, aPresContext, childDesiredSize,
childReflowInput, myWM, childOffset, dummyContainerSize,
ReflowChildFlags::Default, childStatus);
"We gave our child unconstrained available block-size, "
"so it should be complete");
nscoord childMarginBoxBSize =
childDesiredSize.BSize(myWM) + childMargin.BStartEnd(myWM);
if (contentBoxBSize == NS_UNCONSTRAINEDSIZE) {
// We are intrinsically sized -- we should shrinkwrap the input area's
// block-size, or our line-height:
contentBoxBSize =
std::max(aReflowInput.GetLineHeight(), childMarginBoxBSize);
// 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
// aReflowInput.ComputedBSize()). Note that we do this before
// adjusting for borderpadding, since ComputedMaxBSize and
// ComputedMinBSize are content heights.
contentBoxBSize = aReflowInput.ApplyMinMaxBSize(contentBoxBSize);
borderBoxBSize = contentBoxBSize + borderPadding.BStartEnd(myWM);
// Center child in block axis
nscoord extraSpace = contentBoxBSize - childMarginBoxBSize;
childOffset.B(myWM) += std::max(0, extraSpace / 2);
// Needed in FinishReflowChild, for logical-to-physical conversion:
nsSize borderBoxSize =
LogicalSize(myWM, borderBoxISize, borderBoxBSize).GetPhysicalSize(myWM);
// Place the child
FinishReflowChild(inputAreaFrame, aPresContext, childDesiredSize,
&childReflowInput, myWM, childOffset, borderBoxSize,
LogicalSize logicalDesiredSize(myWM, borderBoxISize, borderBoxBSize);
aDesiredSize.SetSize(myWM, logicalDesiredSize);
if (inputAreaFrame) {
ConsiderChildOverflow(aDesiredSize.mOverflowAreas, inputAreaFrame);
("exit nsDateTimeControlFrame::Reflow: size=%d,%d",
aDesiredSize.Width(), aDesiredSize.Height()));