Add m-esr52 at 52.6.0

1 files changed, 390 insertions, 0 deletions

diff --git a/layout/xul/nsLeafBoxFrame.cpp b/layout/xul/nsLeafBoxFrame.cpp
new file mode 100644
index 000000000..6d1783c11
--- /dev/null
+++ b/layout/xul/nsLeafBoxFrame.cpp
@@ -0,0 +1,390 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+//
+// Eric Vaughan
+// Netscape Communications
+//
+// See documentation in associated header file
+//
+
+#include "nsLeafBoxFrame.h"
+#include "nsBoxFrame.h"
+#include "nsCOMPtr.h"
+#include "nsGkAtoms.h"
+#include "nsPresContext.h"
+#include "nsStyleContext.h"
+#include "nsIContent.h"
+#include "nsNameSpaceManager.h"
+#include "nsBoxLayoutState.h"
+#include "nsWidgetsCID.h"
+#include "nsViewManager.h"
+#include "nsContainerFrame.h"
+#include "nsDisplayList.h"
+#include <algorithm>
+
+using namespace mozilla;
+
+//
+// NS_NewLeafBoxFrame
+//
+// Creates a new Toolbar frame and returns it
+//
+nsIFrame*
+NS_NewLeafBoxFrame (nsIPresShell* aPresShell, nsStyleContext* aContext)
+{
+  return new (aPresShell) nsLeafBoxFrame(aContext);
+}
+
+NS_IMPL_FRAMEARENA_HELPERS(nsLeafBoxFrame)
+
+nsLeafBoxFrame::nsLeafBoxFrame(nsStyleContext* aContext)
+    : nsLeafFrame(aContext)
+{
+}
+
+#ifdef DEBUG_LAYOUT
+void
+nsLeafBoxFrame::GetBoxName(nsAutoString& aName)
+{
+   GetFrameName(aName);
+}
+#endif
+
+
+/**
+ * Initialize us. This is a good time to get the alignment of the box
+ */
+void
+nsLeafBoxFrame::Init(nsIContent*       aContent,
+                     nsContainerFrame* aParent,
+                     nsIFrame*         aPrevInFlow)
+{
+  nsLeafFrame::Init(aContent, aParent, aPrevInFlow);
+
+  if (GetStateBits() & NS_FRAME_FONT_INFLATION_CONTAINER) {
+    AddStateBits(NS_FRAME_FONT_INFLATION_FLOW_ROOT);
+  }
+
+  UpdateMouseThrough();
+}
+
+nsresult
+nsLeafBoxFrame::AttributeChanged(int32_t aNameSpaceID,
+                                 nsIAtom* aAttribute,
+                                 int32_t aModType)
+{
+  nsresult rv = nsLeafFrame::AttributeChanged(aNameSpaceID, aAttribute,
+                                              aModType);
+
+  if (aAttribute == nsGkAtoms::mousethrough) 
+    UpdateMouseThrough();
+
+  return rv;
+}
+
+void nsLeafBoxFrame::UpdateMouseThrough()
+{
+  if (mContent) {
+    static nsIContent::AttrValuesArray strings[] =
+      {&nsGkAtoms::never, &nsGkAtoms::always, nullptr};
+    switch (mContent->FindAttrValueIn(kNameSpaceID_None,
+                                      nsGkAtoms::mousethrough,
+                                      strings, eCaseMatters)) {
+      case 0: AddStateBits(NS_FRAME_MOUSE_THROUGH_NEVER); break;
+      case 1: AddStateBits(NS_FRAME_MOUSE_THROUGH_ALWAYS); break;
+      case 2: {
+          RemoveStateBits(NS_FRAME_MOUSE_THROUGH_ALWAYS);
+          RemoveStateBits(NS_FRAME_MOUSE_THROUGH_NEVER);
+          break;
+      }
+    }
+  }
+}
+
+void
+nsLeafBoxFrame::BuildDisplayList(nsDisplayListBuilder*   aBuilder,
+                                 const nsRect&           aDirtyRect,
+                                 const nsDisplayListSet& aLists)
+{
+  // REVIEW: GetFrameForPoint used to not report events for the background
+  // layer, whereas this code will put an event receiver for this frame in the
+  // BlockBorderBackground() list. But I don't see any need to preserve
+  // that anomalous behaviour. The important thing I'm preserving is that
+  // leaf boxes continue to receive events in the foreground layer.
+  DisplayBorderBackgroundOutline(aBuilder, aLists);
+
+  if (!aBuilder->IsForEventDelivery() || !IsVisibleForPainting(aBuilder))
+    return;
+
+  aLists.Content()->AppendNewToTop(new (aBuilder)
+    nsDisplayEventReceiver(aBuilder, this));
+}
+
+/* virtual */ nscoord
+nsLeafBoxFrame::GetMinISize(nsRenderingContext *aRenderingContext)
+{
+  nscoord result;
+  DISPLAY_MIN_WIDTH(this, result);
+  nsBoxLayoutState state(PresContext(), aRenderingContext);
+
+  WritingMode wm = GetWritingMode();
+  LogicalSize minSize(wm, GetXULMinSize(state));
+
+  // GetXULMinSize returns border-box size, and we want to return content
+  // inline-size.  Since Reflow uses the reflow state's border and padding, we
+  // actually just want to subtract what GetXULMinSize added, which is the
+  // result of GetXULBorderAndPadding.
+  nsMargin bp;
+  GetXULBorderAndPadding(bp);
+
+  result = minSize.ISize(wm) - LogicalMargin(wm, bp).IStartEnd(wm);
+
+  return result;
+}
+
+/* virtual */ nscoord
+nsLeafBoxFrame::GetPrefISize(nsRenderingContext *aRenderingContext)
+{
+  nscoord result;
+  DISPLAY_PREF_WIDTH(this, result);
+  nsBoxLayoutState state(PresContext(), aRenderingContext);
+
+  WritingMode wm = GetWritingMode();
+  LogicalSize prefSize(wm, GetXULPrefSize(state));
+
+  // GetXULPrefSize returns border-box size, and we want to return content
+  // inline-size.  Since Reflow uses the reflow state's border and padding, we
+  // actually just want to subtract what GetXULPrefSize added, which is the
+  // result of GetXULBorderAndPadding.
+  nsMargin bp;
+  GetXULBorderAndPadding(bp);
+
+  result = prefSize.ISize(wm) - LogicalMargin(wm, bp).IStartEnd(wm);
+
+  return result;
+}
+
+nscoord
+nsLeafBoxFrame::GetIntrinsicISize()
+{
+  // No intrinsic width
+  return 0;
+}
+
+LogicalSize
+nsLeafBoxFrame::ComputeAutoSize(nsRenderingContext* aRenderingContext,
+                                WritingMode         aWM,
+                                const LogicalSize&  aCBSize,
+                                nscoord             aAvailableISize,
+                                const LogicalSize&  aMargin,
+                                const LogicalSize&  aBorder,
+                                const LogicalSize&  aPadding,
+                                ComputeSizeFlags    aFlags)
+{
+  // Important: NOT calling our direct superclass here!
+  return nsFrame::ComputeAutoSize(aRenderingContext, aWM,
+                                  aCBSize, aAvailableISize,
+                                  aMargin, aBorder, aPadding, aFlags);
+}
+
+void
+nsLeafBoxFrame::Reflow(nsPresContext*   aPresContext,
+                     ReflowOutput&     aDesiredSize,
+                     const ReflowInput& aReflowInput,
+                     nsReflowStatus&          aStatus)
+{
+  // This is mostly a copy of nsBoxFrame::Reflow().
+  // We aren't able to share an implementation because of the frame
+  // class hierarchy.  If you make changes here, please keep
+  // nsBoxFrame::Reflow in sync.
+
+  MarkInReflow();
+  DO_GLOBAL_REFLOW_COUNT("nsLeafBoxFrame");
+  DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
+
+  NS_ASSERTION(aReflowInput.ComputedWidth() >=0 &&
+               aReflowInput.ComputedHeight() >= 0, "Computed Size < 0");
+
+#ifdef DO_NOISY_REFLOW
+  printf("\n-------------Starting LeafBoxFrame Reflow ----------------------------\n");
+  printf("%p ** nsLBF::Reflow %d R: ", this, myCounter++);
+  switch (aReflowInput.reason) {
+    case eReflowReason_Initial:
+      printf("Ini");break;
+    case eReflowReason_Incremental:
+      printf("Inc");break;
+    case eReflowReason_Resize:
+      printf("Rsz");break;
+    case eReflowReason_StyleChange:
+      printf("Sty");break;
+    case eReflowReason_Dirty:
+      printf("Drt ");
+      break;
+    default:printf("<unknown>%d", aReflowInput.reason);break;
+  }
+  
+  printSize("AW", aReflowInput.AvailableWidth());
+  printSize("AH", aReflowInput.AvailableHeight());
+  printSize("CW", aReflowInput.ComputedWidth());
+  printSize("CH", aReflowInput.ComputedHeight());
+
+  printf(" *\n");
+
+#endif
+
+  aStatus = NS_FRAME_COMPLETE;
+
+  // create the layout state
+  nsBoxLayoutState state(aPresContext, aReflowInput.mRenderingContext);
+
+  nsSize computedSize(aReflowInput.ComputedWidth(),aReflowInput.ComputedHeight());
+
+  nsMargin m;
+  m = aReflowInput.ComputedPhysicalBorderPadding();
+
+  //GetXULBorderAndPadding(m);
+
+  // this happens sometimes. So lets handle it gracefully.
+  if (aReflowInput.ComputedHeight() == 0) {
+    nsSize minSize = GetXULMinSize(state);
+    computedSize.height = minSize.height - m.top - m.bottom;
+  }
+
+  nsSize prefSize(0,0);
+
+  // if we are told to layout intrinic then get our preferred size.
+  if (computedSize.width == NS_INTRINSICSIZE || computedSize.height == NS_INTRINSICSIZE) {
+     prefSize = GetXULPrefSize(state);
+     nsSize minSize = GetXULMinSize(state);
+     nsSize maxSize = GetXULMaxSize(state);
+     prefSize = BoundsCheck(minSize, prefSize, maxSize);
+  }
+
+  // get our desiredSize
+  if (aReflowInput.ComputedWidth() == NS_INTRINSICSIZE) {
+    computedSize.width = prefSize.width;
+  } else {
+    computedSize.width += m.left + m.right;
+  }
+
+  if (aReflowInput.ComputedHeight() == NS_INTRINSICSIZE) {
+    computedSize.height = prefSize.height;
+  } else {
+    computedSize.height += m.top + m.bottom;
+  }
+
+  // handle reflow state min and max sizes
+  // XXXbz the width handling here seems to be wrong, since
+  // mComputedMin/MaxWidth is a content-box size, whole
+  // computedSize.width is a border-box size...
+  if (computedSize.width > aReflowInput.ComputedMaxWidth())
+    computedSize.width = aReflowInput.ComputedMaxWidth();
+
+  if (computedSize.width < aReflowInput.ComputedMinWidth())
+    computedSize.width = aReflowInput.ComputedMinWidth();
+
+  // Now adjust computedSize.height for our min and max computed
+  // height.  The only problem is that those are content-box sizes,
+  // while computedSize.height is a border-box size.  So subtract off
+  // m.TopBottom() before adjusting, then readd it.
+  computedSize.height = std::max(0, computedSize.height - m.TopBottom());
+  computedSize.height = NS_CSS_MINMAX(computedSize.height,
+                                      aReflowInput.ComputedMinHeight(),
+                                      aReflowInput.ComputedMaxHeight());
+  computedSize.height += m.TopBottom();
+
+  nsRect r(mRect.x, mRect.y, computedSize.width, computedSize.height);
+
+  SetXULBounds(state, r);
+ 
+  // layout our children
+  XULLayout(state);
+  
+  // ok our child could have gotten bigger. So lets get its bounds
+  aDesiredSize.Width() = mRect.width;
+  aDesiredSize.Height() = mRect.height;
+  aDesiredSize.SetBlockStartAscent(GetXULBoxAscent(state));
+
+  // the overflow rect is set in SetXULBounds() above
+  aDesiredSize.mOverflowAreas = GetOverflowAreas();
+
+#ifdef DO_NOISY_REFLOW
+  {
+    printf("%p ** nsLBF(done) W:%d H:%d  ", this, aDesiredSize.Width(), aDesiredSize.Height());
+
+    if (maxElementWidth) {
+      printf("MW:%d\n", *maxElementWidth); 
+    } else {
+      printf("MW:?\n"); 
+    }
+
+  }
+#endif
+}
+
+#ifdef DEBUG_FRAME_DUMP
+nsresult
+nsLeafBoxFrame::GetFrameName(nsAString& aResult) const
+{
+  return MakeFrameName(NS_LITERAL_STRING("LeafBox"), aResult);
+}
+#endif
+
+nsIAtom*
+nsLeafBoxFrame::GetType() const
+{
+  return nsGkAtoms::leafBoxFrame;
+}
+
+nsresult
+nsLeafBoxFrame::CharacterDataChanged(CharacterDataChangeInfo* aInfo)
+{
+  MarkIntrinsicISizesDirty();
+  return nsLeafFrame::CharacterDataChanged(aInfo);
+}
+
+/* virtual */ nsSize
+nsLeafBoxFrame::GetXULPrefSize(nsBoxLayoutState& aState)
+{
+    return nsBox::GetXULPrefSize(aState);
+}
+
+/* virtual */ nsSize
+nsLeafBoxFrame::GetXULMinSize(nsBoxLayoutState& aState)
+{
+    return nsBox::GetXULMinSize(aState);
+}
+
+/* virtual */ nsSize
+nsLeafBoxFrame::GetXULMaxSize(nsBoxLayoutState& aState)
+{
+    return nsBox::GetXULMaxSize(aState);
+}
+
+/* virtual */ nscoord
+nsLeafBoxFrame::GetXULFlex()
+{
+    return nsBox::GetXULFlex();
+}
+
+/* virtual */ nscoord
+nsLeafBoxFrame::GetXULBoxAscent(nsBoxLayoutState& aState)
+{
+    return nsBox::GetXULBoxAscent(aState);
+}
+
+/* virtual */ void
+nsLeafBoxFrame::MarkIntrinsicISizesDirty()
+{
+  // Don't call base class method, since everything it does is within an
+  // IsXULBoxWrapped check.
+}
+
+NS_IMETHODIMP
+nsLeafBoxFrame::DoXULLayout(nsBoxLayoutState& aState)
+{
+    return nsBox::DoXULLayout(aState);
+}