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/* -*- 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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//
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// Eric Vaughan
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// Netscape Communications
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//
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// See documentation in associated header file
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//
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#include "nsLeafBoxFrame.h"
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#include "nsBoxFrame.h"
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#include "nsCOMPtr.h"
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#include "nsGkAtoms.h"
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#include "nsPresContext.h"
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#include "nsStyleContext.h"
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#include "nsIContent.h"
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#include "nsNameSpaceManager.h"
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#include "nsBoxLayoutState.h"
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#include "nsWidgetsCID.h"
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#include "nsViewManager.h"
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#include "nsContainerFrame.h"
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#include "nsDisplayList.h"
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#include <algorithm>
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using namespace mozilla;
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//
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// NS_NewLeafBoxFrame
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//
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// Creates a new Toolbar frame and returns it
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//
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nsIFrame* NS_NewLeafBoxFrame(nsIPresShell* aPresShell,
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nsStyleContext* aContext) {
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return new (aPresShell) nsLeafBoxFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsLeafBoxFrame)
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#ifdef DEBUG_LAYOUT
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void nsLeafBoxFrame::GetBoxName(nsAutoString& aName) { GetFrameName(aName); }
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#endif
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/**
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* Initialize us. This is a good time to get the alignment of the box
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*/
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void nsLeafBoxFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) {
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nsLeafFrame::Init(aContent, aParent, aPrevInFlow);
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if (GetStateBits() & NS_FRAME_FONT_INFLATION_CONTAINER) {
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AddStateBits(NS_FRAME_FONT_INFLATION_FLOW_ROOT);
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}
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UpdateMouseThrough();
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}
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nsresult nsLeafBoxFrame::AttributeChanged(int32_t aNameSpaceID,
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nsAtom* aAttribute,
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int32_t aModType) {
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nsresult rv =
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nsLeafFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
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if (aAttribute == nsGkAtoms::mousethrough) UpdateMouseThrough();
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return rv;
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}
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void nsLeafBoxFrame::UpdateMouseThrough() {
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static Element::AttrValuesArray strings[] = {&nsGkAtoms::never,
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&nsGkAtoms::always, nullptr};
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switch (mContent->AsElement()->FindAttrValueIn(
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kNameSpaceID_None, nsGkAtoms::mousethrough, strings, eCaseMatters)) {
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case 0:
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AddStateBits(NS_FRAME_MOUSE_THROUGH_NEVER);
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break;
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case 1:
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AddStateBits(NS_FRAME_MOUSE_THROUGH_ALWAYS);
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break;
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case 2: {
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RemoveStateBits(NS_FRAME_MOUSE_THROUGH_ALWAYS);
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RemoveStateBits(NS_FRAME_MOUSE_THROUGH_NEVER);
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break;
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}
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}
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}
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void nsLeafBoxFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) {
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// REVIEW: GetFrameForPoint used to not report events for the background
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// layer, whereas this code will put an event receiver for this frame in the
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// BlockBorderBackground() list. But I don't see any need to preserve
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// that anomalous behaviour. The important thing I'm preserving is that
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// leaf boxes continue to receive events in the foreground layer.
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DisplayBorderBackgroundOutline(aBuilder, aLists);
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if (!aBuilder->IsForEventDelivery() || !IsVisibleForPainting(aBuilder))
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return;
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aLists.Content()->AppendToTop(
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MakeDisplayItem<nsDisplayEventReceiver>(aBuilder, this));
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}
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/* virtual */ nscoord nsLeafBoxFrame::GetMinISize(
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gfxContext* aRenderingContext) {
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nscoord result;
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DISPLAY_MIN_WIDTH(this, result);
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nsBoxLayoutState state(PresContext(), aRenderingContext);
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WritingMode wm = GetWritingMode();
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LogicalSize minSize(wm, GetXULMinSize(state));
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// GetXULMinSize returns border-box size, and we want to return content
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// inline-size. Since Reflow uses the reflow state's border and padding, we
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// actually just want to subtract what GetXULMinSize added, which is the
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// result of GetXULBorderAndPadding.
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nsMargin bp;
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GetXULBorderAndPadding(bp);
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result = minSize.ISize(wm) - LogicalMargin(wm, bp).IStartEnd(wm);
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return result;
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}
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/* virtual */ nscoord nsLeafBoxFrame::GetPrefISize(
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gfxContext* aRenderingContext) {
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nscoord result;
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DISPLAY_PREF_WIDTH(this, result);
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nsBoxLayoutState state(PresContext(), aRenderingContext);
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WritingMode wm = GetWritingMode();
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LogicalSize prefSize(wm, GetXULPrefSize(state));
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// GetXULPrefSize returns border-box size, and we want to return content
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// inline-size. Since Reflow uses the reflow state's border and padding, we
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// actually just want to subtract what GetXULPrefSize added, which is the
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// result of GetXULBorderAndPadding.
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nsMargin bp;
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GetXULBorderAndPadding(bp);
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result = prefSize.ISize(wm) - LogicalMargin(wm, bp).IStartEnd(wm);
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return result;
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}
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nscoord nsLeafBoxFrame::GetIntrinsicISize() {
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// No intrinsic width
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return 0;
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}
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LogicalSize nsLeafBoxFrame::ComputeAutoSize(
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gfxContext* aRenderingContext, WritingMode aWM, const LogicalSize& aCBSize,
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nscoord aAvailableISize, const LogicalSize& aMargin,
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const LogicalSize& aBorder, const LogicalSize& aPadding,
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ComputeSizeFlags aFlags) {
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// Important: NOT calling our direct superclass here!
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return nsFrame::ComputeAutoSize(aRenderingContext, aWM, aCBSize,
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aAvailableISize, aMargin, aBorder, aPadding,
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aFlags);
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}
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void nsLeafBoxFrame::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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// This is mostly a copy of nsBoxFrame::Reflow().
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// We aren't able to share an implementation because of the frame
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// class hierarchy. If you make changes here, please keep
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// nsBoxFrame::Reflow in sync.
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MarkInReflow();
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DO_GLOBAL_REFLOW_COUNT("nsLeafBoxFrame");
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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_ASSERTION(
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aReflowInput.ComputedWidth() >= 0 && aReflowInput.ComputedHeight() >= 0,
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"Computed Size < 0");
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#ifdef DO_NOISY_REFLOW
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printf(
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"\n-------------Starting LeafBoxFrame Reflow "
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"----------------------------\n");
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printf("%p ** nsLBF::Reflow %d R: ", this, myCounter++);
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switch (aReflowInput.reason) {
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case eReflowReason_Initial:
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printf("Ini");
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break;
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case eReflowReason_Incremental:
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printf("Inc");
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break;
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case eReflowReason_Resize:
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printf("Rsz");
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break;
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case eReflowReason_StyleChange:
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printf("Sty");
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break;
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case eReflowReason_Dirty:
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printf("Drt ");
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break;
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default:
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printf("<unknown>%d", aReflowInput.reason);
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break;
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}
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printSize("AW", aReflowInput.AvailableWidth());
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printSize("AH", aReflowInput.AvailableHeight());
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printSize("CW", aReflowInput.ComputedWidth());
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printSize("CH", aReflowInput.ComputedHeight());
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printf(" *\n");
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#endif
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// create the layout state
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nsBoxLayoutState state(aPresContext, aReflowInput.mRenderingContext);
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nsSize computedSize(aReflowInput.ComputedWidth(),
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aReflowInput.ComputedHeight());
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nsMargin m;
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m = aReflowInput.ComputedPhysicalBorderPadding();
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// GetXULBorderAndPadding(m);
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// this happens sometimes. So lets handle it gracefully.
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if (aReflowInput.ComputedHeight() == 0) {
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nsSize minSize = GetXULMinSize(state);
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computedSize.height = minSize.height - m.top - m.bottom;
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}
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nsSize prefSize(0, 0);
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// if we are told to layout intrinic then get our preferred size.
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if (computedSize.width == NS_INTRINSICSIZE ||
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computedSize.height == NS_INTRINSICSIZE) {
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prefSize = GetXULPrefSize(state);
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nsSize minSize = GetXULMinSize(state);
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nsSize maxSize = GetXULMaxSize(state);
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prefSize = BoundsCheck(minSize, prefSize, maxSize);
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}
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// get our desiredSize
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if (aReflowInput.ComputedWidth() == NS_INTRINSICSIZE) {
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computedSize.width = prefSize.width;
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} else {
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computedSize.width += m.left + m.right;
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}
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if (aReflowInput.ComputedHeight() == NS_INTRINSICSIZE) {
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computedSize.height = prefSize.height;
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} else {
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computedSize.height += m.top + m.bottom;
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}
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// handle reflow state min and max sizes
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// XXXbz the width handling here seems to be wrong, since
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// mComputedMin/MaxWidth is a content-box size, whole
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// computedSize.width is a border-box size...
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if (computedSize.width > aReflowInput.ComputedMaxWidth())
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computedSize.width = aReflowInput.ComputedMaxWidth();
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if (computedSize.width < aReflowInput.ComputedMinWidth())
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computedSize.width = aReflowInput.ComputedMinWidth();
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// Now adjust computedSize.height for our min and max computed
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// height. The only problem is that those are content-box sizes,
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// while computedSize.height is a border-box size. So subtract off
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// m.TopBottom() before adjusting, then readd it.
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computedSize.height = std::max(0, computedSize.height - m.TopBottom());
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computedSize.height =
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NS_CSS_MINMAX(computedSize.height, aReflowInput.ComputedMinHeight(),
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aReflowInput.ComputedMaxHeight());
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f0b94e |
computedSize.height += m.TopBottom();
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f0b94e |
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f0b94e |
nsRect r(mRect.x, mRect.y, computedSize.width, computedSize.height);
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|
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f0b94e |
|
|
Packit |
f0b94e |
SetXULBounds(state, r);
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f0b94e |
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Packit |
f0b94e |
// layout our children
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|
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f0b94e |
XULLayout(state);
|
|
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f0b94e |
|
|
Packit |
f0b94e |
// ok our child could have gotten bigger. So lets get its bounds
|
|
Packit |
f0b94e |
aDesiredSize.Width() = mRect.width;
|
|
Packit |
f0b94e |
aDesiredSize.Height() = mRect.height;
|
|
Packit |
f0b94e |
aDesiredSize.SetBlockStartAscent(GetXULBoxAscent(state));
|
|
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f0b94e |
|
|
Packit |
f0b94e |
// the overflow rect is set in SetXULBounds() above
|
|
Packit |
f0b94e |
aDesiredSize.mOverflowAreas = GetOverflowAreas();
|
|
Packit |
f0b94e |
|
|
Packit |
f0b94e |
#ifdef DO_NOISY_REFLOW
|
|
Packit |
f0b94e |
{
|
|
Packit |
f0b94e |
printf("%p ** nsLBF(done) W:%d H:%d ", this, aDesiredSize.Width(),
|
|
Packit |
f0b94e |
aDesiredSize.Height());
|
|
Packit |
f0b94e |
|
|
Packit |
f0b94e |
if (maxElementWidth) {
|
|
Packit |
f0b94e |
printf("MW:%d\n", *maxElementWidth);
|
|
Packit |
f0b94e |
} else {
|
|
Packit |
f0b94e |
printf("MW:?\n");
|
|
Packit |
f0b94e |
}
|
|
Packit |
f0b94e |
}
|
|
Packit |
f0b94e |
#endif
|
|
Packit |
f0b94e |
}
|
|
Packit |
f0b94e |
|
|
Packit |
f0b94e |
#ifdef DEBUG_FRAME_DUMP
|
|
Packit |
f0b94e |
nsresult nsLeafBoxFrame::GetFrameName(nsAString& aResult) const {
|
|
Packit |
f0b94e |
return MakeFrameName(NS_LITERAL_STRING("LeafBox"), aResult);
|
|
Packit |
f0b94e |
}
|
|
Packit |
f0b94e |
#endif
|
|
Packit |
f0b94e |
|
|
Packit |
f0b94e |
nsresult nsLeafBoxFrame::CharacterDataChanged(
|
|
Packit |
f0b94e |
const CharacterDataChangeInfo& aInfo) {
|
|
Packit |
f0b94e |
MarkIntrinsicISizesDirty();
|
|
Packit |
f0b94e |
return nsLeafFrame::CharacterDataChanged(aInfo);
|
|
Packit |
f0b94e |
}
|
|
Packit |
f0b94e |
|
|
Packit |
f0b94e |
/* virtual */ nsSize nsLeafBoxFrame::GetXULPrefSize(nsBoxLayoutState& aState) {
|
|
Packit |
f0b94e |
return nsBox::GetXULPrefSize(aState);
|
|
Packit |
f0b94e |
}
|
|
Packit |
f0b94e |
|
|
Packit |
f0b94e |
/* virtual */ nsSize nsLeafBoxFrame::GetXULMinSize(nsBoxLayoutState& aState) {
|
|
Packit |
f0b94e |
return nsBox::GetXULMinSize(aState);
|
|
Packit |
f0b94e |
}
|
|
Packit |
f0b94e |
|
|
Packit |
f0b94e |
/* virtual */ nsSize nsLeafBoxFrame::GetXULMaxSize(nsBoxLayoutState& aState) {
|
|
Packit |
f0b94e |
return nsBox::GetXULMaxSize(aState);
|
|
Packit |
f0b94e |
}
|
|
Packit |
f0b94e |
|
|
Packit |
f0b94e |
/* virtual */ nscoord nsLeafBoxFrame::GetXULFlex() {
|
|
Packit |
f0b94e |
return nsBox::GetXULFlex();
|
|
Packit |
f0b94e |
}
|
|
Packit |
f0b94e |
|
|
Packit |
f0b94e |
/* virtual */ nscoord nsLeafBoxFrame::GetXULBoxAscent(
|
|
Packit |
f0b94e |
nsBoxLayoutState& aState) {
|
|
Packit |
f0b94e |
return nsBox::GetXULBoxAscent(aState);
|
|
Packit |
f0b94e |
}
|
|
Packit |
f0b94e |
|
|
Packit |
f0b94e |
/* virtual */ void nsLeafBoxFrame::MarkIntrinsicISizesDirty() {
|
|
Packit |
f0b94e |
// Don't call base class method, since everything it does is within an
|
|
Packit |
f0b94e |
// IsXULBoxWrapped check.
|
|
Packit |
f0b94e |
}
|
|
Packit |
f0b94e |
|
|
Packit |
f0b94e |
NS_IMETHODIMP
|
|
Packit |
f0b94e |
nsLeafBoxFrame::DoXULLayout(nsBoxLayoutState& aState) {
|
|
Packit |
f0b94e |
return nsBox::DoXULLayout(aState);
|
|
Packit |
f0b94e |
}
|