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-rw-r--r--layout/generic/nsFrameSetFrame.cpp1538
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diff --git a/layout/generic/nsFrameSetFrame.cpp b/layout/generic/nsFrameSetFrame.cpp
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+++ b/layout/generic/nsFrameSetFrame.cpp
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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 http://mozilla.org/MPL/2.0/. */
+
+/* rendering object for HTML <frameset> elements */
+
+#include "nsFrameSetFrame.h"
+
+#include "gfxContext.h"
+#include "gfxUtils.h"
+#include "mozilla/ComputedStyle.h"
+#include "mozilla/DebugOnly.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/Helpers.h"
+#include "mozilla/Likely.h"
+#include "mozilla/PresShell.h"
+#include "mozilla/PresShellInlines.h"
+
+#include "nsGenericHTMLElement.h"
+#include "nsAttrValueInlines.h"
+#include "nsLeafFrame.h"
+#include "nsContainerFrame.h"
+#include "nsLayoutUtils.h"
+#include "nsPresContext.h"
+#include "nsIContentInlines.h"
+#include "nsGkAtoms.h"
+#include "nsStyleConsts.h"
+#include "nsHTMLParts.h"
+#include "nsNameSpaceManager.h"
+#include "nsCSSAnonBoxes.h"
+#include "mozilla/ServoStyleSet.h"
+#include "mozilla/ServoStyleSetInlines.h"
+#include "mozilla/dom/Element.h"
+#include "nsDisplayList.h"
+#include "mozAutoDocUpdate.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/dom/ChildIterator.h"
+#include "mozilla/dom/HTMLFrameSetElement.h"
+#include "mozilla/LookAndFeel.h"
+#include "mozilla/MouseEvents.h"
+#include "nsSubDocumentFrame.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+using namespace mozilla::gfx;
+
+// masks for mEdgeVisibility
+#define LEFT_VIS 0x0001
+#define RIGHT_VIS 0x0002
+#define TOP_VIS 0x0004
+#define BOTTOM_VIS 0x0008
+#define ALL_VIS 0x000F
+#define NONE_VIS 0x0000
+
+/*******************************************************************************
+ * nsFramesetDrag
+ ******************************************************************************/
+nsFramesetDrag::nsFramesetDrag() { UnSet(); }
+
+void nsFramesetDrag::Reset(bool aVertical, int32_t aIndex, int32_t aChange,
+ nsHTMLFramesetFrame* aSource) {
+ mVertical = aVertical;
+ mIndex = aIndex;
+ mChange = aChange;
+ mSource = aSource;
+}
+
+void nsFramesetDrag::UnSet() {
+ mVertical = true;
+ mIndex = -1;
+ mChange = 0;
+ mSource = nullptr;
+}
+
+/*******************************************************************************
+ * nsHTMLFramesetBorderFrame
+ ******************************************************************************/
+class nsHTMLFramesetBorderFrame final : public nsLeafFrame {
+ public:
+ NS_DECL_FRAMEARENA_HELPERS(nsHTMLFramesetBorderFrame)
+
+#ifdef DEBUG_FRAME_DUMP
+ virtual nsresult GetFrameName(nsAString& aResult) const override;
+#endif
+
+ virtual nsresult HandleEvent(nsPresContext* aPresContext,
+ WidgetGUIEvent* aEvent,
+ nsEventStatus* aEventStatus) override;
+
+ Maybe<Cursor> GetCursor(const nsPoint&) override;
+
+ virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
+ const nsDisplayListSet& aLists) override;
+
+ virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
+ const ReflowInput& aReflowInput,
+ nsReflowStatus& aStatus) override;
+
+ bool GetVisibility() { return mVisibility; }
+ void SetVisibility(bool aVisibility);
+ void SetColor(nscolor aColor);
+
+ void PaintBorder(DrawTarget* aDrawTarget, nsPoint aPt);
+
+ protected:
+ nsHTMLFramesetBorderFrame(ComputedStyle*, nsPresContext*, int32_t aWidth,
+ bool aVertical, bool aVisible);
+ virtual ~nsHTMLFramesetBorderFrame();
+ virtual nscoord GetIntrinsicISize() override;
+ virtual nscoord GetIntrinsicBSize() override;
+
+ // the prev and next neighbors are indexes into the row (for a horizontal
+ // border) or col (for a vertical border) of nsHTMLFramesetFrames or
+ // nsHTMLFrames
+ int32_t mPrevNeighbor;
+ int32_t mNextNeighbor;
+ nscolor mColor;
+ int32_t mWidth;
+ bool mVertical;
+ bool mVisibility;
+ bool mCanResize;
+ friend class nsHTMLFramesetFrame;
+};
+/*******************************************************************************
+ * nsHTMLFramesetBlankFrame
+ ******************************************************************************/
+class nsHTMLFramesetBlankFrame final : public nsLeafFrame {
+ public:
+ NS_DECL_QUERYFRAME
+ NS_DECL_FRAMEARENA_HELPERS(nsHTMLFramesetBlankFrame)
+
+#ifdef DEBUG_FRAME_DUMP
+ virtual nsresult GetFrameName(nsAString& aResult) const override {
+ return MakeFrameName(u"FramesetBlank"_ns, aResult);
+ }
+#endif
+
+ virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
+ const nsDisplayListSet& aLists) override;
+
+ virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
+ const ReflowInput& aReflowInput,
+ nsReflowStatus& aStatus) override;
+
+ protected:
+ explicit nsHTMLFramesetBlankFrame(ComputedStyle* aStyle,
+ nsPresContext* aPresContext)
+ : nsLeafFrame(aStyle, aPresContext, kClassID) {}
+
+ virtual ~nsHTMLFramesetBlankFrame();
+ virtual nscoord GetIntrinsicISize() override;
+ virtual nscoord GetIntrinsicBSize() override;
+
+ friend class nsHTMLFramesetFrame;
+ friend class nsHTMLFrameset;
+};
+
+/*******************************************************************************
+ * nsHTMLFramesetFrame
+ ******************************************************************************/
+bool nsHTMLFramesetFrame::gDragInProgress = false;
+#define DEFAULT_BORDER_WIDTH_PX 6
+
+nsHTMLFramesetFrame::nsHTMLFramesetFrame(ComputedStyle* aStyle,
+ nsPresContext* aPresContext)
+ : nsContainerFrame(aStyle, aPresContext, kClassID) {
+ mNumRows = 0;
+ mNumCols = 0;
+ mEdgeVisibility = 0;
+ mParentFrameborder = eFrameborder_Yes; // default
+ mParentBorderWidth = -1; // default not set
+ mParentBorderColor = NO_COLOR; // default not set
+ mFirstDragPoint.x = mFirstDragPoint.y = 0;
+ mMinDrag = nsPresContext::CSSPixelsToAppUnits(2);
+ mNonBorderChildCount = 0;
+ mNonBlankChildCount = 0;
+ mDragger = nullptr;
+ mChildCount = 0;
+ mTopLevelFrameset = nullptr;
+ mEdgeColors.Set(NO_COLOR);
+}
+
+nsHTMLFramesetFrame::~nsHTMLFramesetFrame() = default;
+
+NS_QUERYFRAME_HEAD(nsHTMLFramesetFrame)
+ NS_QUERYFRAME_ENTRY(nsHTMLFramesetFrame)
+NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
+
+void nsHTMLFramesetFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
+ nsIFrame* aPrevInFlow) {
+ nsContainerFrame::Init(aContent, aParent, aPrevInFlow);
+ // find the highest ancestor that is a frameset
+ nsIFrame* parentFrame = GetParent();
+ mTopLevelFrameset = this;
+ while (parentFrame) {
+ nsHTMLFramesetFrame* frameset = do_QueryFrame(parentFrame);
+ if (frameset) {
+ mTopLevelFrameset = frameset;
+ parentFrame = parentFrame->GetParent();
+ } else {
+ break;
+ }
+ }
+
+ nsPresContext* presContext = PresContext();
+ mozilla::PresShell* presShell = presContext->PresShell();
+
+ nsFrameborder frameborder = GetFrameBorder();
+ int32_t borderWidth = GetBorderWidth(presContext, false);
+ nscolor borderColor = GetBorderColor();
+
+ // Get the rows= cols= data
+ HTMLFrameSetElement* ourContent = HTMLFrameSetElement::FromNode(mContent);
+ NS_ASSERTION(ourContent, "Someone gave us a broken frameset element!");
+ const nsFramesetSpec* rowSpecs = nullptr;
+ const nsFramesetSpec* colSpecs = nullptr;
+ // GetRowSpec and GetColSpec can fail, but when they do they set
+ // mNumRows and mNumCols respectively to 0, so we deal with it fine.
+ ourContent->GetRowSpec(&mNumRows, &rowSpecs);
+ ourContent->GetColSpec(&mNumCols, &colSpecs);
+
+ static_assert(
+ NS_MAX_FRAMESET_SPEC_COUNT < UINT_MAX / sizeof(nscoord),
+ "Maximum value of mNumRows and mNumCols is NS_MAX_FRAMESET_SPEC_COUNT");
+ mRowSizes = MakeUnique<nscoord[]>(mNumRows);
+ mColSizes = MakeUnique<nscoord[]>(mNumCols);
+
+ static_assert(
+ NS_MAX_FRAMESET_SPEC_COUNT < INT32_MAX / NS_MAX_FRAMESET_SPEC_COUNT,
+ "Should not overflow numCells");
+ int32_t numCells = mNumRows * mNumCols;
+
+ static_assert(NS_MAX_FRAMESET_SPEC_COUNT <
+ UINT_MAX / sizeof(nsHTMLFramesetBorderFrame*),
+ "Should not overflow nsHTMLFramesetBorderFrame");
+ mVerBorders = MakeUnique<nsHTMLFramesetBorderFrame*[]>(
+ mNumCols); // 1 more than number of ver borders
+
+ for (int verX = 0; verX < mNumCols; verX++) mVerBorders[verX] = nullptr;
+
+ mHorBorders = MakeUnique<nsHTMLFramesetBorderFrame*[]>(
+ mNumRows); // 1 more than number of hor borders
+
+ for (int horX = 0; horX < mNumRows; horX++) mHorBorders[horX] = nullptr;
+
+ static_assert(NS_MAX_FRAMESET_SPEC_COUNT <
+ UINT_MAX / sizeof(int32_t) / NS_MAX_FRAMESET_SPEC_COUNT,
+ "Should not overflow numCells");
+ static_assert(NS_MAX_FRAMESET_SPEC_COUNT < UINT_MAX / sizeof(nsFrameborder) /
+ NS_MAX_FRAMESET_SPEC_COUNT,
+ "Should not overflow numCells");
+ static_assert(NS_MAX_FRAMESET_SPEC_COUNT < UINT_MAX / sizeof(nsBorderColor) /
+ NS_MAX_FRAMESET_SPEC_COUNT,
+ "Should not overflow numCells");
+ mChildFrameborder = MakeUnique<nsFrameborder[]>(numCells);
+ mChildBorderColors = MakeUnique<nsBorderColor[]>(numCells);
+
+ // create the children frames; skip content which isn't <frameset> or <frame>
+ mChildCount = 0; // number of <frame> or <frameset> children
+
+ FlattenedChildIterator children(mContent);
+ for (nsIContent* child = children.GetNextChild(); child;
+ child = children.GetNextChild()) {
+ if (mChildCount == numCells) {
+ // we have more <frame> or <frameset> than cells
+ // Clear the lazy bits in the remaining children. Also clear
+ // the restyle flags, like nsCSSFrameConstructor::ProcessChildren does.
+ for (; child; child = child->GetNextSibling()) {
+ child->UnsetFlags(NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME);
+ }
+ break;
+ }
+ child->UnsetFlags(NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME);
+
+ // IMPORTANT: This must match the conditions in
+ // nsCSSFrameConstructor::ContentAppended/Inserted/Removed
+ if (!child->IsAnyOfHTMLElements(nsGkAtoms::frameset, nsGkAtoms::frame)) {
+ continue;
+ }
+
+ // FIXME(emilio): This doesn't even respect display: none, but that matches
+ // other browsers ;_;
+ //
+ // Maybe we should change that though.
+ RefPtr<ComputedStyle> kidStyle =
+ ServoStyleSet::ResolveServoStyle(*child->AsElement());
+ nsIFrame* frame;
+ if (child->IsHTMLElement(nsGkAtoms::frameset)) {
+ frame = NS_NewHTMLFramesetFrame(presShell, kidStyle);
+
+ nsHTMLFramesetFrame* childFrame = (nsHTMLFramesetFrame*)frame;
+ childFrame->SetParentFrameborder(frameborder);
+ childFrame->SetParentBorderWidth(borderWidth);
+ childFrame->SetParentBorderColor(borderColor);
+ frame->Init(child, this, nullptr);
+
+ mChildBorderColors[mChildCount].Set(childFrame->GetBorderColor());
+ } else { // frame
+ frame = NS_NewSubDocumentFrame(presShell, kidStyle);
+
+ frame->Init(child, this, nullptr);
+
+ mChildFrameborder[mChildCount] = GetFrameBorder(child);
+ mChildBorderColors[mChildCount].Set(GetBorderColor(child));
+ }
+ child->SetPrimaryFrame(frame);
+
+ mFrames.AppendFrame(nullptr, frame);
+
+ mChildCount++;
+ }
+
+ mNonBlankChildCount = mChildCount;
+ // add blank frames for frameset cells that had no content provided
+ for (int blankX = mChildCount; blankX < numCells; blankX++) {
+ RefPtr<ComputedStyle> pseudoComputedStyle;
+ pseudoComputedStyle =
+ presShell->StyleSet()->ResolveNonInheritingAnonymousBoxStyle(
+ PseudoStyleType::framesetBlank);
+
+ // XXX the blank frame is using the content of its parent - at some point it
+ // should just have null content, if we support that
+ nsHTMLFramesetBlankFrame* blankFrame = new (presShell)
+ nsHTMLFramesetBlankFrame(pseudoComputedStyle, PresContext());
+
+ blankFrame->Init(mContent, this, nullptr);
+
+ mFrames.AppendFrame(nullptr, blankFrame);
+
+ mChildBorderColors[mChildCount].Set(NO_COLOR);
+ mChildCount++;
+ }
+
+ mNonBorderChildCount = mChildCount;
+}
+
+void nsHTMLFramesetFrame::SetInitialChildList(ChildListID aListID,
+ nsFrameList& aChildList) {
+ // We do this weirdness where we create our child frames in Init(). On the
+ // other hand, we're going to get a SetInitialChildList() with an empty list
+ // and null list name after the frame constructor is done creating us. So
+ // just ignore that call.
+ if (aListID == kPrincipalList && aChildList.IsEmpty()) {
+ return;
+ }
+
+ nsContainerFrame::SetInitialChildList(aListID, aChildList);
+}
+
+// XXX should this try to allocate twips based on an even pixel boundary?
+void nsHTMLFramesetFrame::Scale(nscoord aDesired, int32_t aNumIndicies,
+ int32_t* aIndicies, int32_t aNumItems,
+ int32_t* aItems) {
+ int32_t actual = 0;
+ int32_t i, j;
+ // get the actual total
+ for (i = 0; i < aNumIndicies; i++) {
+ j = aIndicies[i];
+ actual += aItems[j];
+ }
+
+ if (actual > 0) {
+ float factor = (float)aDesired / (float)actual;
+ actual = 0;
+ // scale the items up or down
+ for (i = 0; i < aNumIndicies; i++) {
+ j = aIndicies[i];
+ aItems[j] = NSToCoordRound((float)aItems[j] * factor);
+ actual += aItems[j];
+ }
+ } else if (aNumIndicies != 0) {
+ // All the specs say zero width, but we have to fill up space
+ // somehow. Distribute it equally.
+ nscoord width = NSToCoordRound((float)aDesired / (float)aNumIndicies);
+ actual = width * aNumIndicies;
+ for (i = 0; i < aNumIndicies; i++) {
+ aItems[aIndicies[i]] = width;
+ }
+ }
+
+ if (aNumIndicies > 0 && aDesired != actual) {
+ int32_t unit = (aDesired > actual) ? 1 : -1;
+ for (i = 0; (i < aNumIndicies) && (aDesired != actual); i++) {
+ j = aIndicies[i];
+ if (j < aNumItems) {
+ aItems[j] += unit;
+ actual += unit;
+ }
+ }
+ }
+}
+
+/**
+ * Translate the rows/cols specs into an array of integer sizes for
+ * each cell in the frameset. Sizes are allocated based on the priorities of the
+ * specifier - fixed sizes have the highest priority, percentage sizes have the
+ * next highest priority and relative sizes have the lowest.
+ */
+void nsHTMLFramesetFrame::CalculateRowCol(nsPresContext* aPresContext,
+ nscoord aSize, int32_t aNumSpecs,
+ const nsFramesetSpec* aSpecs,
+ nscoord* aValues) {
+ static_assert(NS_MAX_FRAMESET_SPEC_COUNT < UINT_MAX / sizeof(int32_t),
+ "aNumSpecs maximum value is NS_MAX_FRAMESET_SPEC_COUNT");
+
+ int32_t fixedTotal = 0;
+ int32_t numFixed = 0;
+ auto fixed = MakeUnique<int32_t[]>(aNumSpecs);
+ int32_t numPercent = 0;
+ auto percent = MakeUnique<int32_t[]>(aNumSpecs);
+ int32_t relativeSums = 0;
+ int32_t numRelative = 0;
+ auto relative = MakeUnique<int32_t[]>(aNumSpecs);
+
+ if (MOZ_UNLIKELY(!fixed || !percent || !relative)) {
+ return; // NS_ERROR_OUT_OF_MEMORY
+ }
+
+ int32_t i, j;
+
+ // initialize the fixed, percent, relative indices, allocate the fixed sizes
+ // and zero the others
+ for (i = 0; i < aNumSpecs; i++) {
+ aValues[i] = 0;
+ switch (aSpecs[i].mUnit) {
+ case eFramesetUnit_Fixed:
+ aValues[i] = nsPresContext::CSSPixelsToAppUnits(aSpecs[i].mValue);
+ fixedTotal += aValues[i];
+ fixed[numFixed] = i;
+ numFixed++;
+ break;
+ case eFramesetUnit_Percent:
+ percent[numPercent] = i;
+ numPercent++;
+ break;
+ case eFramesetUnit_Relative:
+ relative[numRelative] = i;
+ numRelative++;
+ relativeSums += aSpecs[i].mValue;
+ break;
+ }
+ }
+
+ // scale the fixed sizes if they total too much (or too little and there
+ // aren't any percent or relative)
+ if ((fixedTotal > aSize) ||
+ ((fixedTotal < aSize) && (0 == numPercent) && (0 == numRelative))) {
+ Scale(aSize, numFixed, fixed.get(), aNumSpecs, aValues);
+ return;
+ }
+
+ int32_t percentMax = aSize - fixedTotal;
+ int32_t percentTotal = 0;
+ // allocate the percentage sizes from what is left over from the fixed
+ // allocation
+ for (i = 0; i < numPercent; i++) {
+ j = percent[i];
+ aValues[j] =
+ NSToCoordRound((float)aSpecs[j].mValue * (float)aSize / 100.0f);
+ percentTotal += aValues[j];
+ }
+
+ // scale the percent sizes if they total too much (or too little and there
+ // aren't any relative)
+ if ((percentTotal > percentMax) ||
+ ((percentTotal < percentMax) && (0 == numRelative))) {
+ Scale(percentMax, numPercent, percent.get(), aNumSpecs, aValues);
+ return;
+ }
+
+ int32_t relativeMax = percentMax - percentTotal;
+ int32_t relativeTotal = 0;
+ // allocate the relative sizes from what is left over from the percent
+ // allocation
+ for (i = 0; i < numRelative; i++) {
+ j = relative[i];
+ aValues[j] = NSToCoordRound((float)aSpecs[j].mValue * (float)relativeMax /
+ (float)relativeSums);
+ relativeTotal += aValues[j];
+ }
+
+ // scale the relative sizes if they take up too much or too little
+ if (relativeTotal != relativeMax) {
+ Scale(relativeMax, numRelative, relative.get(), aNumSpecs, aValues);
+ }
+}
+
+/**
+ * Translate the rows/cols integer sizes into an array of specs for
+ * each cell in the frameset. Reverse of CalculateRowCol() behaviour.
+ * This allows us to maintain the user size info through reflows.
+ */
+void nsHTMLFramesetFrame::GenerateRowCol(nsPresContext* aPresContext,
+ nscoord aSize, int32_t aNumSpecs,
+ const nsFramesetSpec* aSpecs,
+ nscoord* aValues, nsString& aNewAttr) {
+ int32_t i;
+
+ for (i = 0; i < aNumSpecs; i++) {
+ if (!aNewAttr.IsEmpty()) aNewAttr.Append(char16_t(','));
+
+ switch (aSpecs[i].mUnit) {
+ case eFramesetUnit_Fixed:
+ aNewAttr.AppendInt(nsPresContext::AppUnitsToIntCSSPixels(aValues[i]));
+ break;
+ case eFramesetUnit_Percent: // XXX Only accurate to 1%, need 1 pixel
+ case eFramesetUnit_Relative:
+ // Add 0.5 to the percentage to make rounding work right.
+ aNewAttr.AppendInt(uint32_t((100.0 * aValues[i]) / aSize + 0.5));
+ aNewAttr.Append(char16_t('%'));
+ break;
+ }
+ }
+}
+
+int32_t nsHTMLFramesetFrame::GetBorderWidth(nsPresContext* aPresContext,
+ bool aTakeForcingIntoAccount) {
+ nsFrameborder frameborder = GetFrameBorder();
+ if (frameborder == eFrameborder_No) {
+ return 0;
+ }
+ nsGenericHTMLElement* content = nsGenericHTMLElement::FromNode(mContent);
+
+ if (content) {
+ const nsAttrValue* attr = content->GetParsedAttr(nsGkAtoms::border);
+ if (attr) {
+ int32_t intVal = 0;
+ if (attr->Type() == nsAttrValue::eInteger) {
+ intVal = attr->GetIntegerValue();
+ if (intVal < 0) {
+ intVal = 0;
+ }
+ }
+
+ return nsPresContext::CSSPixelsToAppUnits(intVal);
+ }
+ }
+
+ if (mParentBorderWidth >= 0) {
+ return mParentBorderWidth;
+ }
+
+ return nsPresContext::CSSPixelsToAppUnits(DEFAULT_BORDER_WIDTH_PX);
+}
+
+void nsHTMLFramesetFrame::GetDesiredSize(nsPresContext* aPresContext,
+ const ReflowInput& aReflowInput,
+ ReflowOutput& aDesiredSize) {
+ WritingMode wm = aReflowInput.GetWritingMode();
+ LogicalSize desiredSize(wm);
+ nsHTMLFramesetFrame* framesetParent = do_QueryFrame(GetParent());
+ if (nullptr == framesetParent) {
+ if (aPresContext->IsPaginated()) {
+ // XXX This needs to be changed when framesets paginate properly
+ desiredSize.ISize(wm) = aReflowInput.AvailableISize();
+ desiredSize.BSize(wm) = aReflowInput.AvailableBSize();
+ } else {
+ LogicalSize area(wm, aPresContext->GetVisibleArea().Size());
+
+ desiredSize.ISize(wm) = area.ISize(wm);
+ desiredSize.BSize(wm) = area.BSize(wm);
+ }
+ } else {
+ LogicalSize size(wm);
+ framesetParent->GetSizeOfChild(this, wm, size);
+ desiredSize.ISize(wm) = size.ISize(wm);
+ desiredSize.BSize(wm) = size.BSize(wm);
+ }
+ aDesiredSize.SetSize(wm, desiredSize);
+}
+
+// only valid for non border children
+void nsHTMLFramesetFrame::GetSizeOfChildAt(int32_t aIndexInParent,
+ WritingMode aWM, LogicalSize& aSize,
+ nsIntPoint& aCellIndex) {
+ int32_t row = aIndexInParent / mNumCols;
+ int32_t col = aIndexInParent -
+ (row * mNumCols); // remainder from dividing index by mNumCols
+ if ((row < mNumRows) && (col < mNumCols)) {
+ aSize.ISize(aWM) = mColSizes[col];
+ aSize.BSize(aWM) = mRowSizes[row];
+ aCellIndex.x = col;
+ aCellIndex.y = row;
+ } else {
+ aSize.SizeTo(aWM, 0, 0);
+ aCellIndex.x = aCellIndex.y = 0;
+ }
+}
+
+// only valid for non border children
+void nsHTMLFramesetFrame::GetSizeOfChild(nsIFrame* aChild, WritingMode aWM,
+ LogicalSize& aSize) {
+ // Reflow only creates children frames for <frameset> and <frame> content.
+ // this assumption is used here
+ int i = 0;
+ for (nsIFrame* child : mFrames) {
+ if (aChild == child) {
+ nsIntPoint ignore;
+ GetSizeOfChildAt(i, aWM, aSize, ignore);
+ return;
+ }
+ i++;
+ }
+ aSize.SizeTo(aWM, 0, 0);
+}
+
+nsresult nsHTMLFramesetFrame::HandleEvent(nsPresContext* aPresContext,
+ WidgetGUIEvent* aEvent,
+ nsEventStatus* aEventStatus) {
+ NS_ENSURE_ARG_POINTER(aEventStatus);
+ if (mDragger) {
+ // the nsFramesetBorderFrame has captured NS_MOUSE_DOWN
+ switch (aEvent->mMessage) {
+ case eMouseMove:
+ MouseDrag(aPresContext, aEvent);
+ break;
+ case eMouseUp:
+ if (aEvent->AsMouseEvent()->mButton == MouseButton::ePrimary) {
+ EndMouseDrag(aPresContext);
+ }
+ break;
+ default:
+ break;
+ }
+ *aEventStatus = nsEventStatus_eConsumeNoDefault;
+ } else {
+ *aEventStatus = nsEventStatus_eIgnore;
+ }
+ return NS_OK;
+}
+
+Maybe<nsIFrame::Cursor> nsHTMLFramesetFrame::GetCursor(const nsPoint&) {
+ auto kind = StyleCursorKind::Default;
+ if (mDragger) {
+ kind = mDragger->mVertical ? StyleCursorKind::EwResize
+ : StyleCursorKind::NsResize;
+ }
+ return Some(Cursor{kind, AllowCustomCursorImage::No});
+}
+
+void nsHTMLFramesetFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
+ const nsDisplayListSet& aLists) {
+ BuildDisplayListForInline(aBuilder, aLists);
+
+ if (mDragger && aBuilder->IsForEventDelivery()) {
+ aLists.Content()->AppendNewToTop<nsDisplayEventReceiver>(aBuilder, this);
+ }
+}
+
+void nsHTMLFramesetFrame::ReflowPlaceChild(nsIFrame* aChild,
+ nsPresContext* aPresContext,
+ const ReflowInput& aReflowInput,
+ nsPoint& aOffset, nsSize& aSize,
+ nsIntPoint* aCellIndex) {
+ // reflow the child
+ ReflowInput reflowInput(aPresContext, aReflowInput, aChild,
+ LogicalSize(aChild->GetWritingMode(), aSize));
+ reflowInput.SetComputedWidth(std::max(
+ 0,
+ aSize.width - reflowInput.ComputedPhysicalBorderPadding().LeftRight()));
+ reflowInput.SetComputedHeight(std::max(
+ 0,
+ aSize.height - reflowInput.ComputedPhysicalBorderPadding().TopBottom()));
+ ReflowOutput reflowOutput(aReflowInput);
+ reflowOutput.Width() = aSize.width;
+ reflowOutput.Height() = aSize.height;
+ nsReflowStatus status;
+
+ ReflowChild(aChild, aPresContext, reflowOutput, reflowInput, aOffset.x,
+ aOffset.y, ReflowChildFlags::Default, status);
+ NS_ASSERTION(status.IsComplete(), "bad status");
+
+ // Place and size the child
+ reflowOutput.Width() = aSize.width;
+ reflowOutput.Height() = aSize.height;
+ FinishReflowChild(aChild, aPresContext, reflowOutput, &reflowInput, aOffset.x,
+ aOffset.y, ReflowChildFlags::Default);
+}
+
+static nsFrameborder GetFrameBorderHelper(nsGenericHTMLElement* aContent) {
+ if (nullptr != aContent) {
+ const nsAttrValue* attr = aContent->GetParsedAttr(nsGkAtoms::frameborder);
+ if (attr && attr->Type() == nsAttrValue::eEnum) {
+ switch (attr->GetEnumValue()) {
+ case NS_STYLE_FRAME_YES:
+ case NS_STYLE_FRAME_1:
+ return eFrameborder_Yes;
+
+ case NS_STYLE_FRAME_NO:
+ case NS_STYLE_FRAME_0:
+ return eFrameborder_No;
+ }
+ }
+ }
+ return eFrameborder_Notset;
+}
+
+nsFrameborder nsHTMLFramesetFrame::GetFrameBorder() {
+ nsFrameborder result = eFrameborder_Notset;
+ nsGenericHTMLElement* content = nsGenericHTMLElement::FromNode(mContent);
+
+ if (content) {
+ result = GetFrameBorderHelper(content);
+ }
+ if (eFrameborder_Notset == result) {
+ return mParentFrameborder;
+ }
+ return result;
+}
+
+nsFrameborder nsHTMLFramesetFrame::GetFrameBorder(nsIContent* aContent) {
+ nsFrameborder result = eFrameborder_Notset;
+
+ nsGenericHTMLElement* content = nsGenericHTMLElement::FromNode(aContent);
+
+ if (content) {
+ result = GetFrameBorderHelper(content);
+ }
+ if (eFrameborder_Notset == result) {
+ return GetFrameBorder();
+ }
+ return result;
+}
+
+nscolor nsHTMLFramesetFrame::GetBorderColor() {
+ nsGenericHTMLElement* content = nsGenericHTMLElement::FromNode(mContent);
+
+ if (content) {
+ const nsAttrValue* attr = content->GetParsedAttr(nsGkAtoms::bordercolor);
+ if (attr) {
+ nscolor color;
+ if (attr->GetColorValue(color)) {
+ return color;
+ }
+ }
+ }
+
+ return mParentBorderColor;
+}
+
+nscolor nsHTMLFramesetFrame::GetBorderColor(nsIContent* aContent) {
+ nsGenericHTMLElement* content = nsGenericHTMLElement::FromNode(aContent);
+
+ if (content) {
+ const nsAttrValue* attr = content->GetParsedAttr(nsGkAtoms::bordercolor);
+ if (attr) {
+ nscolor color;
+ if (attr->GetColorValue(color)) {
+ return color;
+ }
+ }
+ }
+ return GetBorderColor();
+}
+
+void nsHTMLFramesetFrame::Reflow(nsPresContext* aPresContext,
+ ReflowOutput& aDesiredSize,
+ const ReflowInput& aReflowInput,
+ nsReflowStatus& aStatus) {
+ MarkInReflow();
+ DO_GLOBAL_REFLOW_COUNT("nsHTMLFramesetFrame");
+ DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
+ MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
+
+ mozilla::PresShell* presShell = aPresContext->PresShell();
+ ServoStyleSet* styleSet = presShell->StyleSet();
+
+ GetParent()->AddStateBits(NS_FRAME_CONTAINS_RELATIVE_BSIZE);
+
+ // printf("FramesetFrame2::Reflow %X (%d,%d) \n", this,
+ // aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight());
+ // Always get the size so that the caller knows how big we are
+ GetDesiredSize(aPresContext, aReflowInput, aDesiredSize);
+
+ nscoord width = (aDesiredSize.Width() <= aReflowInput.AvailableWidth())
+ ? aDesiredSize.Width()
+ : aReflowInput.AvailableWidth();
+ nscoord height = (aDesiredSize.Height() <= aReflowInput.AvailableHeight())
+ ? aDesiredSize.Height()
+ : aReflowInput.AvailableHeight();
+
+ // We might be reflowed more than once with NS_FRAME_FIRST_REFLOW;
+ // that's allowed. (Though it will only happen for misuse of frameset
+ // that includes it within other content.) So measure firstTime by
+ // what we care about, which is whether we've processed the data we
+ // process below if firstTime is true.
+ MOZ_ASSERT(!mChildFrameborder == !mChildBorderColors);
+ bool firstTime = !!mChildFrameborder;
+
+ // subtract out the width of all of the potential borders. There are
+ // only borders between <frame>s. There are none on the edges (e.g the
+ // leftmost <frame> has no left border).
+ int32_t borderWidth = GetBorderWidth(aPresContext, true);
+
+ width -= (mNumCols - 1) * borderWidth;
+ if (width < 0) width = 0;
+
+ height -= (mNumRows - 1) * borderWidth;
+ if (height < 0) height = 0;
+
+ HTMLFrameSetElement* ourContent = HTMLFrameSetElement::FromNode(mContent);
+ NS_ASSERTION(ourContent, "Someone gave us a broken frameset element!");
+ const nsFramesetSpec* rowSpecs = nullptr;
+ const nsFramesetSpec* colSpecs = nullptr;
+ int32_t rows = 0;
+ int32_t cols = 0;
+ ourContent->GetRowSpec(&rows, &rowSpecs);
+ ourContent->GetColSpec(&cols, &colSpecs);
+ // If the number of cols or rows has changed, the frame for the frameset
+ // will be re-created.
+ if (mNumRows != rows || mNumCols != cols) {
+ mDrag.UnSet();
+ NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aDesiredSize);
+ return;
+ }
+
+ CalculateRowCol(aPresContext, width, mNumCols, colSpecs, mColSizes.get());
+ CalculateRowCol(aPresContext, height, mNumRows, rowSpecs, mRowSizes.get());
+
+ UniquePtr<bool[]> verBordersVis; // vertical borders visibility
+ UniquePtr<nscolor[]> verBorderColors;
+ UniquePtr<bool[]> horBordersVis; // horizontal borders visibility
+ UniquePtr<nscolor[]> horBorderColors;
+ nscolor borderColor = GetBorderColor();
+ nsFrameborder frameborder = GetFrameBorder();
+
+ if (firstTime) {
+ // Check for overflow in memory allocations using mNumCols and mNumRows
+ // which have a maxium value of NS_MAX_FRAMESET_SPEC_COUNT.
+ static_assert(NS_MAX_FRAMESET_SPEC_COUNT < UINT_MAX / sizeof(bool),
+ "Check for overflow");
+ static_assert(NS_MAX_FRAMESET_SPEC_COUNT < UINT_MAX / sizeof(nscolor),
+ "Check for overflow");
+
+ verBordersVis = MakeUnique<bool[]>(mNumCols);
+ verBorderColors = MakeUnique<nscolor[]>(mNumCols);
+ for (int verX = 0; verX < mNumCols; verX++) {
+ verBordersVis[verX] = false;
+ verBorderColors[verX] = NO_COLOR;
+ }
+
+ horBordersVis = MakeUnique<bool[]>(mNumRows);
+ horBorderColors = MakeUnique<nscolor[]>(mNumRows);
+ for (int horX = 0; horX < mNumRows; horX++) {
+ horBordersVis[horX] = false;
+ horBorderColors[horX] = NO_COLOR;
+ }
+ }
+
+ // reflow the children
+ int32_t lastRow = 0;
+ int32_t lastCol = 0;
+ int32_t borderChildX = mNonBorderChildCount; // index of border children
+ nsHTMLFramesetBorderFrame* borderFrame = nullptr;
+ nsPoint offset(0, 0);
+ nsSize size, lastSize;
+ WritingMode wm = GetWritingMode();
+ LogicalSize logicalSize(wm);
+ nsIFrame* child = mFrames.FirstChild();
+
+ for (int32_t childX = 0; childX < mNonBorderChildCount; childX++) {
+ nsIntPoint cellIndex;
+ GetSizeOfChildAt(childX, wm, logicalSize, cellIndex);
+ size = logicalSize.GetPhysicalSize(wm);
+
+ if (lastRow != cellIndex.y) { // changed to next row
+ offset.x = 0;
+ offset.y += lastSize.height;
+ if (firstTime) { // create horizontal border
+
+ RefPtr<ComputedStyle> pseudoComputedStyle;
+ pseudoComputedStyle = styleSet->ResolveNonInheritingAnonymousBoxStyle(
+ PseudoStyleType::horizontalFramesetBorder);
+
+ borderFrame = new (presShell) nsHTMLFramesetBorderFrame(
+ pseudoComputedStyle, PresContext(), borderWidth, false, false);
+ borderFrame->Init(mContent, this, nullptr);
+ mChildCount++;
+ mFrames.AppendFrame(nullptr, borderFrame);
+ mHorBorders[cellIndex.y - 1] = borderFrame;
+ // set the neighbors for determining drag boundaries
+ borderFrame->mPrevNeighbor = lastRow;
+ borderFrame->mNextNeighbor = cellIndex.y;
+ } else {
+ borderFrame = (nsHTMLFramesetBorderFrame*)mFrames.FrameAt(borderChildX);
+ borderFrame->mWidth = borderWidth;
+ borderChildX++;
+ }
+ nsSize borderSize(aDesiredSize.Width(), borderWidth);
+ ReflowPlaceChild(borderFrame, aPresContext, aReflowInput, offset,
+ borderSize);
+ borderFrame = nullptr;
+ offset.y += borderWidth;
+ } else {
+ if (cellIndex.x > 0) { // moved to next col in same row
+ if (0 == cellIndex.y) { // in 1st row
+ if (firstTime) { // create vertical border
+
+ RefPtr<ComputedStyle> pseudoComputedStyle;
+ pseudoComputedStyle =
+ styleSet->ResolveNonInheritingAnonymousBoxStyle(
+ PseudoStyleType::verticalFramesetBorder);
+
+ borderFrame = new (presShell) nsHTMLFramesetBorderFrame(
+ pseudoComputedStyle, PresContext(), borderWidth, true, false);
+ borderFrame->Init(mContent, this, nullptr);
+ mChildCount++;
+ mFrames.AppendFrame(nullptr, borderFrame);
+ mVerBorders[cellIndex.x - 1] = borderFrame;
+ // set the neighbors for determining drag boundaries
+ borderFrame->mPrevNeighbor = lastCol;
+ borderFrame->mNextNeighbor = cellIndex.x;
+ } else {
+ borderFrame =
+ (nsHTMLFramesetBorderFrame*)mFrames.FrameAt(borderChildX);
+ borderFrame->mWidth = borderWidth;
+ borderChildX++;
+ }
+ nsSize borderSize(borderWidth, aDesiredSize.Height());
+ ReflowPlaceChild(borderFrame, aPresContext, aReflowInput, offset,
+ borderSize);
+ borderFrame = nullptr;
+ }
+ offset.x += borderWidth;
+ }
+ }
+
+ ReflowPlaceChild(child, aPresContext, aReflowInput, offset, size,
+ &cellIndex);
+
+ if (firstTime) {
+ int32_t childVis;
+ nsHTMLFramesetFrame* framesetFrame = do_QueryFrame(child);
+ if (framesetFrame) {
+ childVis = framesetFrame->mEdgeVisibility;
+ mChildBorderColors[childX] = framesetFrame->mEdgeColors;
+ } else if (child->IsSubDocumentFrame()) {
+ if (eFrameborder_Yes == mChildFrameborder[childX]) {
+ childVis = ALL_VIS;
+ } else if (eFrameborder_No == mChildFrameborder[childX]) {
+ childVis = NONE_VIS;
+ } else { // notset
+ childVis = (eFrameborder_No == frameborder) ? NONE_VIS : ALL_VIS;
+ }
+ } else { // blank
+#ifdef DEBUG
+ nsHTMLFramesetBlankFrame* blank = do_QueryFrame(child);
+ MOZ_ASSERT(blank, "unexpected child frame type");
+#endif
+ childVis = NONE_VIS;
+ }
+ nsBorderColor childColors = mChildBorderColors[childX];
+ // set the visibility, color of our edge borders based on children
+ if (0 == cellIndex.x) {
+ if (!(mEdgeVisibility & LEFT_VIS)) {
+ mEdgeVisibility |= (LEFT_VIS & childVis);
+ }
+ if (NO_COLOR == mEdgeColors.mLeft) {
+ mEdgeColors.mLeft = childColors.mLeft;
+ }
+ }
+ if (0 == cellIndex.y) {
+ if (!(mEdgeVisibility & TOP_VIS)) {
+ mEdgeVisibility |= (TOP_VIS & childVis);
+ }
+ if (NO_COLOR == mEdgeColors.mTop) {
+ mEdgeColors.mTop = childColors.mTop;
+ }
+ }
+ if (mNumCols - 1 == cellIndex.x) {
+ if (!(mEdgeVisibility & RIGHT_VIS)) {
+ mEdgeVisibility |= (RIGHT_VIS & childVis);
+ }
+ if (NO_COLOR == mEdgeColors.mRight) {
+ mEdgeColors.mRight = childColors.mRight;
+ }
+ }
+ if (mNumRows - 1 == cellIndex.y) {
+ if (!(mEdgeVisibility & BOTTOM_VIS)) {
+ mEdgeVisibility |= (BOTTOM_VIS & childVis);
+ }
+ if (NO_COLOR == mEdgeColors.mBottom) {
+ mEdgeColors.mBottom = childColors.mBottom;
+ }
+ }
+ // set the visibility of borders that the child may affect
+ if (childVis & RIGHT_VIS) {
+ verBordersVis[cellIndex.x] = true;
+ }
+ if (childVis & BOTTOM_VIS) {
+ horBordersVis[cellIndex.y] = true;
+ }
+ if ((cellIndex.x > 0) && (childVis & LEFT_VIS)) {
+ verBordersVis[cellIndex.x - 1] = true;
+ }
+ if ((cellIndex.y > 0) && (childVis & TOP_VIS)) {
+ horBordersVis[cellIndex.y - 1] = true;
+ }
+ // set the colors of borders that the child may affect
+ if (NO_COLOR == verBorderColors[cellIndex.x]) {
+ verBorderColors[cellIndex.x] = mChildBorderColors[childX].mRight;
+ }
+ if (NO_COLOR == horBorderColors[cellIndex.y]) {
+ horBorderColors[cellIndex.y] = mChildBorderColors[childX].mBottom;
+ }
+ if ((cellIndex.x > 0) && (NO_COLOR == verBorderColors[cellIndex.x - 1])) {
+ verBorderColors[cellIndex.x - 1] = mChildBorderColors[childX].mLeft;
+ }
+ if ((cellIndex.y > 0) && (NO_COLOR == horBorderColors[cellIndex.y - 1])) {
+ horBorderColors[cellIndex.y - 1] = mChildBorderColors[childX].mTop;
+ }
+ }
+ lastRow = cellIndex.y;
+ lastCol = cellIndex.x;
+ lastSize = size;
+ offset.x += size.width;
+ child = child->GetNextSibling();
+ }
+
+ if (firstTime) {
+ nscolor childColor;
+ // set the visibility, color, mouse sensitivity of borders
+ for (int verX = 0; verX < mNumCols - 1; verX++) {
+ if (mVerBorders[verX]) {
+ mVerBorders[verX]->SetVisibility(verBordersVis[verX]);
+ SetBorderResize(mVerBorders[verX]);
+ childColor = (NO_COLOR == verBorderColors[verX])
+ ? borderColor
+ : verBorderColors[verX];
+ mVerBorders[verX]->SetColor(childColor);
+ }
+ }
+ for (int horX = 0; horX < mNumRows - 1; horX++) {
+ if (mHorBorders[horX]) {
+ mHorBorders[horX]->SetVisibility(horBordersVis[horX]);
+ SetBorderResize(mHorBorders[horX]);
+ childColor = (NO_COLOR == horBorderColors[horX])
+ ? borderColor
+ : horBorderColors[horX];
+ mHorBorders[horX]->SetColor(childColor);
+ }
+ }
+
+ mChildFrameborder.reset();
+ mChildBorderColors.reset();
+ }
+
+ mDrag.UnSet();
+
+ aDesiredSize.SetOverflowAreasToDesiredBounds();
+ FinishAndStoreOverflow(&aDesiredSize);
+
+ NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aDesiredSize);
+}
+
+#ifdef DEBUG_FRAME_DUMP
+nsresult nsHTMLFramesetFrame::GetFrameName(nsAString& aResult) const {
+ return MakeFrameName(u"Frameset"_ns, aResult);
+}
+#endif
+
+bool nsHTMLFramesetFrame::CanResize(bool aVertical, bool aLeft) {
+ int32_t childX;
+ int32_t startX;
+ if (aVertical) {
+ startX = (aLeft) ? 0 : mNumCols - 1;
+ for (childX = startX; childX < mNonBorderChildCount; childX += mNumCols) {
+ if (!CanChildResize(aVertical, aLeft, childX)) {
+ return false;
+ }
+ }
+ } else {
+ startX = (aLeft) ? 0 : (mNumRows - 1) * mNumCols;
+ int32_t endX = startX + mNumCols;
+ for (childX = startX; childX < endX; childX++) {
+ if (!CanChildResize(aVertical, aLeft, childX)) {
+ return false;
+ }
+ }
+ }
+ return true;
+}
+
+bool nsHTMLFramesetFrame::GetNoResize(nsIFrame* aChildFrame) {
+ nsIContent* content = aChildFrame->GetContent();
+
+ return content && content->IsElement() &&
+ content->AsElement()->HasAttr(kNameSpaceID_None, nsGkAtoms::noresize);
+}
+
+bool nsHTMLFramesetFrame::CanChildResize(bool aVertical, bool aLeft,
+ int32_t aChildX) {
+ nsIFrame* child = mFrames.FrameAt(aChildX);
+ nsHTMLFramesetFrame* frameset = do_QueryFrame(child);
+ return frameset ? frameset->CanResize(aVertical, aLeft) : !GetNoResize(child);
+}
+
+// This calculates and sets the resizability of all border frames
+
+void nsHTMLFramesetFrame::RecalculateBorderResize() {
+ if (!mContent) {
+ return;
+ }
+
+ static_assert(
+ NS_MAX_FRAMESET_SPEC_COUNT < INT32_MAX / NS_MAX_FRAMESET_SPEC_COUNT,
+ "Check for overflow");
+ static_assert(NS_MAX_FRAMESET_SPEC_COUNT <
+ UINT_MAX / sizeof(int32_t) / NS_MAX_FRAMESET_SPEC_COUNT,
+ "Check for overflow");
+ // set the visibility and mouse sensitivity of borders
+ int32_t verX;
+ for (verX = 0; verX < mNumCols - 1; verX++) {
+ if (mVerBorders[verX]) {
+ mVerBorders[verX]->mCanResize = true;
+ SetBorderResize(mVerBorders[verX]);
+ }
+ }
+ int32_t horX;
+ for (horX = 0; horX < mNumRows - 1; horX++) {
+ if (mHorBorders[horX]) {
+ mHorBorders[horX]->mCanResize = true;
+ SetBorderResize(mHorBorders[horX]);
+ }
+ }
+}
+
+void nsHTMLFramesetFrame::SetBorderResize(
+ nsHTMLFramesetBorderFrame* aBorderFrame) {
+ if (aBorderFrame->mVertical) {
+ for (int rowX = 0; rowX < mNumRows; rowX++) {
+ int32_t childX = aBorderFrame->mPrevNeighbor + (rowX * mNumCols);
+ if (!CanChildResize(true, false, childX) ||
+ !CanChildResize(true, true, childX + 1)) {
+ aBorderFrame->mCanResize = false;
+ }
+ }
+ } else {
+ int32_t childX = aBorderFrame->mPrevNeighbor * mNumCols;
+ int32_t endX = childX + mNumCols;
+ for (; childX < endX; childX++) {
+ if (!CanChildResize(false, false, childX)) {
+ aBorderFrame->mCanResize = false;
+ }
+ }
+ endX = endX + mNumCols;
+ for (; childX < endX; childX++) {
+ if (!CanChildResize(false, true, childX)) {
+ aBorderFrame->mCanResize = false;
+ }
+ }
+ }
+}
+
+void nsHTMLFramesetFrame::StartMouseDrag(nsPresContext* aPresContext,
+ nsHTMLFramesetBorderFrame* aBorder,
+ WidgetGUIEvent* aEvent) {
+#if 0
+ int32_t index;
+ IndexOf(aBorder, index);
+ NS_ASSERTION((nullptr != aBorder) && (index >= 0), "invalid dragger");
+#endif
+
+ PresShell::SetCapturingContent(GetContent(),
+ CaptureFlags::IgnoreAllowedState);
+
+ mDragger = aBorder;
+
+ mFirstDragPoint = aEvent->mRefPoint;
+
+ // Store the original frame sizes
+ if (mDragger->mVertical) {
+ mPrevNeighborOrigSize = mColSizes[mDragger->mPrevNeighbor];
+ mNextNeighborOrigSize = mColSizes[mDragger->mNextNeighbor];
+ } else {
+ mPrevNeighborOrigSize = mRowSizes[mDragger->mPrevNeighbor];
+ mNextNeighborOrigSize = mRowSizes[mDragger->mNextNeighbor];
+ }
+
+ gDragInProgress = true;
+}
+
+void nsHTMLFramesetFrame::MouseDrag(nsPresContext* aPresContext,
+ WidgetGUIEvent* aEvent) {
+ // if the capture ended, reset the drag state
+ if (PresShell::GetCapturingContent() != GetContent()) {
+ mDragger = nullptr;
+ gDragInProgress = false;
+ return;
+ }
+
+ int32_t change; // measured positive from left-to-right or top-to-bottom
+ AutoWeakFrame weakFrame(this);
+ if (mDragger->mVertical) {
+ change = aPresContext->DevPixelsToAppUnits(aEvent->mRefPoint.x -
+ mFirstDragPoint.x);
+ if (change > mNextNeighborOrigSize - mMinDrag) {
+ change = mNextNeighborOrigSize - mMinDrag;
+ } else if (change <= mMinDrag - mPrevNeighborOrigSize) {
+ change = mMinDrag - mPrevNeighborOrigSize;
+ }
+ mColSizes[mDragger->mPrevNeighbor] = mPrevNeighborOrigSize + change;
+ mColSizes[mDragger->mNextNeighbor] = mNextNeighborOrigSize - change;
+
+ if (change != 0) {
+ // Recompute the specs from the new sizes.
+ nscoord width =
+ mRect.width - (mNumCols - 1) * GetBorderWidth(aPresContext, true);
+ HTMLFrameSetElement* ourContent = HTMLFrameSetElement::FromNode(mContent);
+ NS_ASSERTION(ourContent, "Someone gave us a broken frameset element!");
+ const nsFramesetSpec* colSpecs = nullptr;
+ ourContent->GetColSpec(&mNumCols, &colSpecs);
+ nsAutoString newColAttr;
+ GenerateRowCol(aPresContext, width, mNumCols, colSpecs, mColSizes.get(),
+ newColAttr);
+ // Setting the attr will trigger a reflow
+ mContent->AsElement()->SetAttr(kNameSpaceID_None, nsGkAtoms::cols,
+ newColAttr, true);
+ }
+ } else {
+ change = aPresContext->DevPixelsToAppUnits(aEvent->mRefPoint.y -
+ mFirstDragPoint.y);
+ if (change > mNextNeighborOrigSize - mMinDrag) {
+ change = mNextNeighborOrigSize - mMinDrag;
+ } else if (change <= mMinDrag - mPrevNeighborOrigSize) {
+ change = mMinDrag - mPrevNeighborOrigSize;
+ }
+ mRowSizes[mDragger->mPrevNeighbor] = mPrevNeighborOrigSize + change;
+ mRowSizes[mDragger->mNextNeighbor] = mNextNeighborOrigSize - change;
+
+ if (change != 0) {
+ // Recompute the specs from the new sizes.
+ nscoord height =
+ mRect.height - (mNumRows - 1) * GetBorderWidth(aPresContext, true);
+ HTMLFrameSetElement* ourContent = HTMLFrameSetElement::FromNode(mContent);
+ NS_ASSERTION(ourContent, "Someone gave us a broken frameset element!");
+ const nsFramesetSpec* rowSpecs = nullptr;
+ ourContent->GetRowSpec(&mNumRows, &rowSpecs);
+ nsAutoString newRowAttr;
+ GenerateRowCol(aPresContext, height, mNumRows, rowSpecs, mRowSizes.get(),
+ newRowAttr);
+ // Setting the attr will trigger a reflow
+ mContent->AsElement()->SetAttr(kNameSpaceID_None, nsGkAtoms::rows,
+ newRowAttr, true);
+ }
+ }
+
+ NS_ENSURE_TRUE_VOID(weakFrame.IsAlive());
+ if (change != 0) {
+ mDrag.Reset(mDragger->mVertical, mDragger->mPrevNeighbor, change, this);
+ }
+}
+
+void nsHTMLFramesetFrame::EndMouseDrag(nsPresContext* aPresContext) {
+ PresShell::ReleaseCapturingContent();
+ mDragger = nullptr;
+ gDragInProgress = false;
+}
+
+nsIFrame* NS_NewHTMLFramesetFrame(PresShell* aPresShell,
+ ComputedStyle* aStyle) {
+#ifdef DEBUG
+ const nsStyleDisplay* disp = aStyle->StyleDisplay();
+ NS_ASSERTION(!disp->IsAbsolutelyPositionedStyle() && !disp->IsFloatingStyle(),
+ "Framesets should not be positioned and should not float");
+#endif
+
+ return new (aPresShell)
+ nsHTMLFramesetFrame(aStyle, aPresShell->GetPresContext());
+}
+
+NS_IMPL_FRAMEARENA_HELPERS(nsHTMLFramesetFrame)
+
+/*******************************************************************************
+ * nsHTMLFramesetBorderFrame
+ ******************************************************************************/
+nsHTMLFramesetBorderFrame::nsHTMLFramesetBorderFrame(
+ ComputedStyle* aStyle, nsPresContext* aPresContext, int32_t aWidth,
+ bool aVertical, bool aVisibility)
+ : nsLeafFrame(aStyle, aPresContext, kClassID),
+ mWidth(aWidth),
+ mVertical(aVertical),
+ mVisibility(aVisibility) {
+ mCanResize = true;
+ mColor = NO_COLOR;
+ mPrevNeighbor = 0;
+ mNextNeighbor = 0;
+}
+
+nsHTMLFramesetBorderFrame::~nsHTMLFramesetBorderFrame() {
+ // printf("nsHTMLFramesetBorderFrame destructor %p \n", this);
+}
+
+NS_IMPL_FRAMEARENA_HELPERS(nsHTMLFramesetBorderFrame)
+
+nscoord nsHTMLFramesetBorderFrame::GetIntrinsicISize() {
+ // No intrinsic width
+ return 0;
+}
+
+nscoord nsHTMLFramesetBorderFrame::GetIntrinsicBSize() {
+ // No intrinsic height
+ return 0;
+}
+
+void nsHTMLFramesetBorderFrame::SetVisibility(bool aVisibility) {
+ mVisibility = aVisibility;
+}
+
+void nsHTMLFramesetBorderFrame::SetColor(nscolor aColor) { mColor = aColor; }
+
+void nsHTMLFramesetBorderFrame::Reflow(nsPresContext* aPresContext,
+ ReflowOutput& aDesiredSize,
+ const ReflowInput& aReflowInput,
+ nsReflowStatus& aStatus) {
+ DO_GLOBAL_REFLOW_COUNT("nsHTMLFramesetBorderFrame");
+ DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
+ MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
+
+ // Override Reflow(), since we don't want to deal with what our
+ // computed values are.
+ SizeToAvailSize(aReflowInput, aDesiredSize);
+
+ aDesiredSize.SetOverflowAreasToDesiredBounds();
+}
+
+class nsDisplayFramesetBorder : public nsPaintedDisplayItem {
+ public:
+ nsDisplayFramesetBorder(nsDisplayListBuilder* aBuilder,
+ nsHTMLFramesetBorderFrame* aFrame)
+ : nsPaintedDisplayItem(aBuilder, aFrame) {
+ MOZ_COUNT_CTOR(nsDisplayFramesetBorder);
+ }
+ MOZ_COUNTED_DTOR_OVERRIDE(nsDisplayFramesetBorder)
+
+ // REVIEW: see old GetFrameForPoint
+ // Receives events in its bounds
+ virtual void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
+ HitTestState* aState,
+ nsTArray<nsIFrame*>* aOutFrames) override {
+ aOutFrames->AppendElement(mFrame);
+ }
+ virtual void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) override;
+ NS_DISPLAY_DECL_NAME("FramesetBorder", TYPE_FRAMESET_BORDER)
+};
+
+void nsDisplayFramesetBorder::Paint(nsDisplayListBuilder* aBuilder,
+ gfxContext* aCtx) {
+ static_cast<nsHTMLFramesetBorderFrame*>(mFrame)->PaintBorder(
+ aCtx->GetDrawTarget(), ToReferenceFrame());
+}
+
+void nsHTMLFramesetBorderFrame::BuildDisplayList(
+ nsDisplayListBuilder* aBuilder, const nsDisplayListSet& aLists) {
+ aLists.Content()->AppendNewToTop<nsDisplayFramesetBorder>(aBuilder, this);
+}
+
+void nsHTMLFramesetBorderFrame::PaintBorder(DrawTarget* aDrawTarget,
+ nsPoint aPt) {
+ nscoord widthInPixels = nsPresContext::AppUnitsToIntCSSPixels(mWidth);
+ nscoord pixelWidth = nsPresContext::CSSPixelsToAppUnits(1);
+
+ if (widthInPixels <= 0) return;
+
+ ColorPattern bgColor(ToDeviceColor(LookAndFeel::GetColor(
+ LookAndFeel::ColorID::WidgetBackground, NS_RGB(200, 200, 200))));
+
+ ColorPattern fgColor(ToDeviceColor(LookAndFeel::GetColor(
+ LookAndFeel::ColorID::WidgetForeground, NS_RGB(0, 0, 0))));
+
+ ColorPattern hltColor(ToDeviceColor(LookAndFeel::GetColor(
+ LookAndFeel::ColorID::Widget3DHighlight, NS_RGB(255, 255, 255))));
+
+ ColorPattern sdwColor(ToDeviceColor(LookAndFeel::GetColor(
+ LookAndFeel::ColorID::Widget3DShadow, NS_RGB(128, 128, 128))));
+
+ ColorPattern color(ToDeviceColor(NS_RGB(255, 255, 255))); // default to white
+ if (mVisibility) {
+ color =
+ (NO_COLOR == mColor) ? bgColor : ColorPattern(ToDeviceColor(mColor));
+ }
+
+ int32_t appUnitsPerDevPixel = PresContext()->AppUnitsPerDevPixel();
+
+ Point toRefFrame = NSPointToPoint(aPt, appUnitsPerDevPixel);
+
+ AutoRestoreTransform autoRestoreTransform(aDrawTarget);
+ aDrawTarget->SetTransform(
+ aDrawTarget->GetTransform().PreTranslate(toRefFrame));
+
+ nsPoint start(0, 0);
+ nsPoint end = mVertical ? nsPoint(0, mRect.height) : nsPoint(mRect.width, 0);
+
+ // draw grey or white first
+ for (int i = 0; i < widthInPixels; i++) {
+ StrokeLineWithSnapping(start, end, appUnitsPerDevPixel, *aDrawTarget,
+ color);
+ if (mVertical) {
+ start.x += pixelWidth;
+ end.x = start.x;
+ } else {
+ start.y += pixelWidth;
+ end.y = start.y;
+ }
+ }
+
+ if (!mVisibility) return;
+
+ if (widthInPixels >= 5) {
+ start.x = (mVertical) ? pixelWidth : 0;
+ start.y = (mVertical) ? 0 : pixelWidth;
+ end.x = (mVertical) ? start.x : mRect.width;
+ end.y = (mVertical) ? mRect.height : start.y;
+ StrokeLineWithSnapping(start, end, appUnitsPerDevPixel, *aDrawTarget,
+ hltColor);
+ }
+
+ if (widthInPixels >= 2) {
+ start.x = (mVertical) ? mRect.width - (2 * pixelWidth) : 0;
+ start.y = (mVertical) ? 0 : mRect.height - (2 * pixelWidth);
+ end.x = (mVertical) ? start.x : mRect.width;
+ end.y = (mVertical) ? mRect.height : start.y;
+ StrokeLineWithSnapping(start, end, appUnitsPerDevPixel, *aDrawTarget,
+ sdwColor);
+ }
+
+ if (widthInPixels >= 1) {
+ start.x = (mVertical) ? mRect.width - pixelWidth : 0;
+ start.y = (mVertical) ? 0 : mRect.height - pixelWidth;
+ end.x = (mVertical) ? start.x : mRect.width;
+ end.y = (mVertical) ? mRect.height : start.y;
+ StrokeLineWithSnapping(start, end, appUnitsPerDevPixel, *aDrawTarget,
+ fgColor);
+ }
+}
+
+nsresult nsHTMLFramesetBorderFrame::HandleEvent(nsPresContext* aPresContext,
+ WidgetGUIEvent* aEvent,
+ nsEventStatus* aEventStatus) {
+ NS_ENSURE_ARG_POINTER(aEventStatus);
+ *aEventStatus = nsEventStatus_eIgnore;
+
+ // XXX Mouse setting logic removed. The remaining logic should also move.
+ if (!mCanResize) {
+ return NS_OK;
+ }
+
+ if (aEvent->mMessage == eMouseDown &&
+ aEvent->AsMouseEvent()->mButton == MouseButton::ePrimary) {
+ nsHTMLFramesetFrame* parentFrame = do_QueryFrame(GetParent());
+ if (parentFrame) {
+ parentFrame->StartMouseDrag(aPresContext, this, aEvent);
+ *aEventStatus = nsEventStatus_eConsumeNoDefault;
+ }
+ }
+ return NS_OK;
+}
+
+Maybe<nsIFrame::Cursor> nsHTMLFramesetBorderFrame::GetCursor(const nsPoint&) {
+ auto kind = StyleCursorKind::Default;
+ if (mCanResize) {
+ kind = mVertical ? StyleCursorKind::EwResize : StyleCursorKind::NsResize;
+ }
+ return Some(Cursor{kind, AllowCustomCursorImage::No});
+}
+
+#ifdef DEBUG_FRAME_DUMP
+nsresult nsHTMLFramesetBorderFrame::GetFrameName(nsAString& aResult) const {
+ return MakeFrameName(u"FramesetBorder"_ns, aResult);
+}
+#endif
+
+/*******************************************************************************
+ * nsHTMLFramesetBlankFrame
+ ******************************************************************************/
+
+NS_QUERYFRAME_HEAD(nsHTMLFramesetBlankFrame)
+ NS_QUERYFRAME_ENTRY(nsHTMLFramesetBlankFrame)
+NS_QUERYFRAME_TAIL_INHERITING(nsLeafFrame)
+
+NS_IMPL_FRAMEARENA_HELPERS(nsHTMLFramesetBlankFrame)
+
+nsHTMLFramesetBlankFrame::~nsHTMLFramesetBlankFrame() {
+ // printf("nsHTMLFramesetBlankFrame destructor %p \n", this);
+}
+
+nscoord nsHTMLFramesetBlankFrame::GetIntrinsicISize() {
+ // No intrinsic width
+ return 0;
+}
+
+nscoord nsHTMLFramesetBlankFrame::GetIntrinsicBSize() {
+ // No intrinsic height
+ return 0;
+}
+
+void nsHTMLFramesetBlankFrame::Reflow(nsPresContext* aPresContext,
+ ReflowOutput& aDesiredSize,
+ const ReflowInput& aReflowInput,
+ nsReflowStatus& aStatus) {
+ DO_GLOBAL_REFLOW_COUNT("nsHTMLFramesetBlankFrame");
+ MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
+
+ // Override Reflow(), since we don't want to deal with what our
+ // computed values are.
+ SizeToAvailSize(aReflowInput, aDesiredSize);
+
+ aDesiredSize.SetOverflowAreasToDesiredBounds();
+}
+
+class nsDisplayFramesetBlank : public nsPaintedDisplayItem {
+ public:
+ nsDisplayFramesetBlank(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame)
+ : nsPaintedDisplayItem(aBuilder, aFrame) {
+ MOZ_COUNT_CTOR(nsDisplayFramesetBlank);
+ }
+ MOZ_COUNTED_DTOR_OVERRIDE(nsDisplayFramesetBlank)
+
+ virtual void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) override;
+ NS_DISPLAY_DECL_NAME("FramesetBlank", TYPE_FRAMESET_BLANK)
+};
+
+void nsDisplayFramesetBlank::Paint(nsDisplayListBuilder* aBuilder,
+ gfxContext* aCtx) {
+ DrawTarget* drawTarget = aCtx->GetDrawTarget();
+ int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
+ Rect rect =
+ NSRectToSnappedRect(GetPaintRect(), appUnitsPerDevPixel, *drawTarget);
+ ColorPattern white(ToDeviceColor(sRGBColor::OpaqueWhite()));
+ drawTarget->FillRect(rect, white);
+}
+
+void nsHTMLFramesetBlankFrame::BuildDisplayList(
+ nsDisplayListBuilder* aBuilder, const nsDisplayListSet& aLists) {
+ aLists.Content()->AppendNewToTop<nsDisplayFramesetBlank>(aBuilder, this);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 05:42:30 +0000