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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo
This commit is contained in:
Roy Tam
commit
dcd9973243
150858 changed files with 23884658 additions and 0 deletions
311
layout/xul/nsGroupBoxFrame.cpp
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311
layout/xul/nsGroupBoxFrame.cpp
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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// YY need to pass isMultiple before create called
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#include "nsBoxFrame.h"
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#include "mozilla/gfx/2D.h"
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#include "nsCSSRendering.h"
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#include "nsLayoutUtils.h"
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#include "nsRenderingContext.h"
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#include "nsStyleContext.h"
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#include "nsDisplayList.h"
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using namespace mozilla;
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using namespace mozilla::gfx;
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using namespace mozilla::image;
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class nsGroupBoxFrame : public nsBoxFrame {
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public:
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NS_DECL_FRAMEARENA_HELPERS
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explicit nsGroupBoxFrame(nsStyleContext* aContext):
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nsBoxFrame(aContext) {}
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virtual nsresult GetXULBorderAndPadding(nsMargin& aBorderAndPadding) override;
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) override;
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const override {
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return MakeFrameName(NS_LITERAL_STRING("GroupBoxFrame"), aResult);
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}
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#endif
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virtual bool HonorPrintBackgroundSettings() override { return false; }
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DrawResult PaintBorder(nsRenderingContext& aRenderingContext,
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nsPoint aPt,
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const nsRect& aDirtyRect);
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nsRect GetBackgroundRectRelativeToSelf(nscoord* aOutYOffset = nullptr, nsRect* aOutGroupRect = nullptr);
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// make sure we our kids get our orient and align instead of us.
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// our child box has no content node so it will search for a parent with one.
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// that will be us.
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virtual void GetInitialOrientation(bool& aHorizontal) override { aHorizontal = false; }
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virtual bool GetInitialHAlignment(Halignment& aHalign) override { aHalign = hAlign_Left; return true; }
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virtual bool GetInitialVAlignment(Valignment& aValign) override { aValign = vAlign_Top; return true; }
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virtual bool GetInitialAutoStretch(bool& aStretch) override { aStretch = true; return true; }
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nsIFrame* GetCaptionBox(nsRect& aCaptionRect);
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};
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/*
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class nsGroupBoxInnerFrame : public nsBoxFrame {
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public:
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nsGroupBoxInnerFrame(nsIPresShell* aShell, nsStyleContext* aContext):
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nsBoxFrame(aShell, aContext) {}
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#ifdef DEBUG_FRAME_DUMP
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NS_IMETHOD GetFrameName(nsString& aResult) const {
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return MakeFrameName("GroupBoxFrameInner", aResult);
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}
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#endif
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// we are always flexible
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virtual bool GetDefaultFlex(int32_t& aFlex) { aFlex = 1; return true; }
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};
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*/
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nsIFrame*
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NS_NewGroupBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsGroupBoxFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsGroupBoxFrame)
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class nsDisplayXULGroupBorder : public nsDisplayItem {
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public:
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nsDisplayXULGroupBorder(nsDisplayListBuilder* aBuilder,
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nsGroupBoxFrame* aFrame) :
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nsDisplayItem(aBuilder, aFrame) {
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MOZ_COUNT_CTOR(nsDisplayXULGroupBorder);
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}
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#ifdef NS_BUILD_REFCNT_LOGGING
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virtual ~nsDisplayXULGroupBorder() {
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MOZ_COUNT_DTOR(nsDisplayXULGroupBorder);
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}
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#endif
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nsDisplayItemGeometry* AllocateGeometry(nsDisplayListBuilder* aBuilder) override;
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void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
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const nsDisplayItemGeometry* aGeometry,
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nsRegion *aInvalidRegion) override;
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virtual void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
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HitTestState* aState, nsTArray<nsIFrame*> *aOutFrames) override {
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aOutFrames->AppendElement(mFrame);
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}
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virtual void Paint(nsDisplayListBuilder* aBuilder,
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nsRenderingContext* aCtx) override;
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NS_DISPLAY_DECL_NAME("XULGroupBackground", TYPE_XUL_GROUP_BACKGROUND)
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};
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nsDisplayItemGeometry*
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nsDisplayXULGroupBorder::AllocateGeometry(nsDisplayListBuilder* aBuilder)
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{
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return new nsDisplayItemGenericImageGeometry(this, aBuilder);
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}
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void
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nsDisplayXULGroupBorder::ComputeInvalidationRegion(
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nsDisplayListBuilder* aBuilder,
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const nsDisplayItemGeometry* aGeometry,
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nsRegion* aInvalidRegion)
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{
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auto geometry =
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static_cast<const nsDisplayItemGenericImageGeometry*>(aGeometry);
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if (aBuilder->ShouldSyncDecodeImages() &&
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geometry->ShouldInvalidateToSyncDecodeImages()) {
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bool snap;
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aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
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}
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nsDisplayItem::ComputeInvalidationRegion(aBuilder, aGeometry, aInvalidRegion);
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}
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void
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nsDisplayXULGroupBorder::Paint(nsDisplayListBuilder* aBuilder,
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nsRenderingContext* aCtx)
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{
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DrawResult result = static_cast<nsGroupBoxFrame*>(mFrame)
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->PaintBorder(*aCtx, ToReferenceFrame(), mVisibleRect);
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nsDisplayItemGenericImageGeometry::UpdateDrawResult(this, result);
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}
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void
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nsGroupBoxFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists)
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{
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// Paint our background and border
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if (IsVisibleForPainting(aBuilder)) {
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nsDisplayBackgroundImage::AppendBackgroundItemsToTop(
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aBuilder, this, GetBackgroundRectRelativeToSelf(),
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aLists.BorderBackground());
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aLists.BorderBackground()->AppendNewToTop(new (aBuilder)
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nsDisplayXULGroupBorder(aBuilder, this));
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DisplayOutline(aBuilder, aLists);
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}
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BuildDisplayListForChildren(aBuilder, aDirtyRect, aLists);
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}
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nsRect
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nsGroupBoxFrame::GetBackgroundRectRelativeToSelf(nscoord* aOutYOffset, nsRect* aOutGroupRect)
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{
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const nsMargin& border = StyleBorder()->GetComputedBorder();
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nsRect groupRect;
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nsIFrame* groupBox = GetCaptionBox(groupRect);
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nscoord yoff = 0;
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if (groupBox) {
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// If the border is smaller than the legend, move the border down
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// to be centered on the legend.
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nsMargin groupMargin;
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groupBox->StyleMargin()->GetMargin(groupMargin);
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groupRect.Inflate(groupMargin);
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if (border.top < groupRect.height) {
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yoff = (groupRect.height - border.top) / 2 + groupRect.y;
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}
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}
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if (aOutYOffset) {
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*aOutYOffset = yoff;
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}
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if (aOutGroupRect) {
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*aOutGroupRect = groupRect;
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}
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return nsRect(0, yoff, mRect.width, mRect.height - yoff);
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}
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DrawResult
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nsGroupBoxFrame::PaintBorder(nsRenderingContext& aRenderingContext,
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nsPoint aPt, const nsRect& aDirtyRect) {
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DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
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gfxContext* gfx = aRenderingContext.ThebesContext();
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Sides skipSides;
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const nsStyleBorder* borderStyleData = StyleBorder();
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const nsMargin& border = borderStyleData->GetComputedBorder();
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nsPresContext* presContext = PresContext();
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nsRect groupRect;
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nsIFrame* groupBox = GetCaptionBox(groupRect);
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nscoord yoff = 0;
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nsRect rect = GetBackgroundRectRelativeToSelf(&yoff, &groupRect) + aPt;
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groupRect += aPt;
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DrawResult result = DrawResult::SUCCESS;
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if (groupBox) {
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int32_t appUnitsPerDevPixel = PresContext()->AppUnitsPerDevPixel();
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// we should probably use PaintBorderEdges to do this but for now just use clipping
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// to achieve the same effect.
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// draw left side
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nsRect clipRect(rect);
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clipRect.width = groupRect.x - rect.x;
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clipRect.height = border.top;
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gfx->Save();
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gfx->Clip(NSRectToSnappedRect(clipRect, appUnitsPerDevPixel, *drawTarget));
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result &=
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, rect, mStyleContext,
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PaintBorderFlags::SYNC_DECODE_IMAGES, skipSides);
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gfx->Restore();
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// draw right side
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clipRect = rect;
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clipRect.x = groupRect.XMost();
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clipRect.width = rect.XMost() - groupRect.XMost();
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clipRect.height = border.top;
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gfx->Save();
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gfx->Clip(NSRectToSnappedRect(clipRect, appUnitsPerDevPixel, *drawTarget));
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result &=
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, rect, mStyleContext,
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PaintBorderFlags::SYNC_DECODE_IMAGES, skipSides);
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gfx->Restore();
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// draw bottom
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clipRect = rect;
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clipRect.y += border.top;
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clipRect.height = mRect.height - (yoff + border.top);
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gfx->Save();
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gfx->Clip(NSRectToSnappedRect(clipRect, appUnitsPerDevPixel, *drawTarget));
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result &=
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, rect, mStyleContext,
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PaintBorderFlags::SYNC_DECODE_IMAGES, skipSides);
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gfx->Restore();
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} else {
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result &=
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, nsRect(aPt, GetSize()),
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mStyleContext,
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PaintBorderFlags::SYNC_DECODE_IMAGES, skipSides);
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}
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return result;
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}
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nsIFrame*
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nsGroupBoxFrame::GetCaptionBox(nsRect& aCaptionRect)
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{
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// first child is our grouped area
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nsIFrame* box = nsBox::GetChildXULBox(this);
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// no area fail.
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if (!box)
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return nullptr;
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// get the first child in the grouped area, that is the caption
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box = nsBox::GetChildXULBox(box);
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// nothing in the area? fail
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if (!box)
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return nullptr;
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// now get the caption itself. It is in the caption frame.
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nsIFrame* child = nsBox::GetChildXULBox(box);
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if (child) {
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// convert to our coordinates.
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nsRect parentRect(box->GetRect());
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aCaptionRect = child->GetRect();
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aCaptionRect.x += parentRect.x;
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aCaptionRect.y += parentRect.y;
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}
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return child;
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}
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nsresult
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nsGroupBoxFrame::GetXULBorderAndPadding(nsMargin& aBorderAndPadding)
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{
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aBorderAndPadding.SizeTo(0,0,0,0);
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return NS_OK;
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}
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