1 files changed, 198 insertions, 0 deletions
diff --git a/layout/forms/nsDateTimeControlFrame.cpp b/layout/forms/nsDateTimeControlFrame.cpp
new file mode 100644
index 0000000000..b19f787dbc
--- /dev/null
+++ b/layout/forms/nsDateTimeControlFrame.cpp
@@ -0,0 +1,198 @@
+/* -*- 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/. */
+
+/**
+ * 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());
+}
+
+NS_IMPL_FRAMEARENA_HELPERS(nsDateTimeControlFrame)
+
+NS_QUERYFRAME_HEAD(nsDateTimeControlFrame)
+  NS_QUERYFRAME_ENTRY(nsDateTimeControlFrame)
+NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
+
+nsDateTimeControlFrame::nsDateTimeControlFrame(ComputedStyle* aStyle,
+                                               nsPresContext* aPresContext)
+    : nsContainerFrame(aStyle, aPresContext, kClassID) {}
+
+nscoord nsDateTimeControlFrame::GetMinISize(gfxContext* aRenderingContext) {
+  nscoord result;
+  DISPLAY_MIN_INLINE_SIZE(this, result);
+
+  nsIFrame* kid = mFrames.FirstChild();
+  if (kid) {  // display:none?
+    result = nsLayoutUtils::IntrinsicForContainer(aRenderingContext, kid,
+                                                  IntrinsicISizeType::MinISize);
+  } else {
+    result = 0;
+  }
+
+  return result;
+}
+
+nscoord nsDateTimeControlFrame::GetPrefISize(gfxContext* aRenderingContext) {
+  nscoord result;
+  DISPLAY_PREF_INLINE_SIZE(this, result);
+
+  nsIFrame* kid = mFrames.FirstChild();
+  if (kid) {  // display:none?
+    result = nsLayoutUtils::IntrinsicForContainer(
+        aRenderingContext, kid, IntrinsicISizeType::PrefISize);
+  } else {
+    result = 0;
+  }
+
+  return result;
+}
+
+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) {
+  MarkInReflow();
+
+  DO_GLOBAL_REFLOW_COUNT("nsDateTimeControlFrame");
+  DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
+  MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
+  NS_FRAME_TRACE(
+      NS_FRAME_TRACE_CALLS,
+      ("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) {
+      aDesiredSize.SetBlockStartAscent(*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);
+    availSize.BSize(wm) = NS_UNCONSTRAINEDSIZE;
+
+    ReflowInput childReflowInput(aPresContext, aReflowInput, inputAreaFrame,
+                                 availSize);
+
+    // 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);
+    MOZ_ASSERT(childStatus.IsFullyComplete(),
+               "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,
+                      ReflowChildFlags::Default);
+  }
+
+  LogicalSize logicalDesiredSize(myWM, borderBoxISize, borderBoxBSize);
+  aDesiredSize.SetSize(myWM, logicalDesiredSize);
+  aDesiredSize.SetOverflowAreasToDesiredBounds();
+
+  if (inputAreaFrame) {
+    ConsiderChildOverflow(aDesiredSize.mOverflowAreas, inputAreaFrame);
+  }
+
+  FinishAndStoreOverflow(&aDesiredSize);
+
+  NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
+                 ("exit nsDateTimeControlFrame::Reflow: size=%d,%d",
+                  aDesiredSize.Width(), aDesiredSize.Height()));
+}