/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ /* rendering object for HTML <frameset> elements */ #include "nsFrameSetFrame.h" #include "gfxContext.h" #include "gfxUtils.h" #include "mozilla/DebugOnly.h" #include "mozilla/gfx/2D.h" #include "mozilla/gfx/Helpers.h" #include "mozilla/Likely.h" #include "nsGenericHTMLElement.h" #include "nsAttrValueInlines.h" #include "nsLeafFrame.h" #include "nsContainerFrame.h" #include "nsLayoutUtils.h" #include "nsPresContext.h" #include "nsIPresShell.h" #include "nsGkAtoms.h" #include "nsStyleConsts.h" #include "nsStyleContext.h" #include "nsHTMLParts.h" #include "nsRenderingContext.h" #include "nsIDOMMutationEvent.h" #include "nsNameSpaceManager.h" #include "nsCSSAnonBoxes.h" #include "mozilla/StyleSetHandle.h" #include "mozilla/StyleSetHandleInlines.h" #include "mozilla/dom/Element.h" #include "nsDisplayList.h" #include "nsNodeUtils.h" #include "mozAutoDocUpdate.h" #include "mozilla/Preferences.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 : public nsLeafFrame { public: NS_DECL_FRAMEARENA_HELPERS #ifdef DEBUG_FRAME_DUMP virtual nsresult GetFrameName(nsAString& aResult) const override; #endif virtual nsresult HandleEvent(nsPresContext* aPresContext, WidgetGUIEvent* aEvent, nsEventStatus* aEventStatus) override; virtual nsresult GetCursor(const nsPoint& aPoint, nsIFrame::Cursor& aCursor) override; virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, const nsRect& aDirtyRect, 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(nsStyleContext* aContext, 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 : public nsLeafFrame { public: NS_DECL_QUERYFRAME_TARGET(nsHTMLFramesetBlankFrame) NS_DECL_QUERYFRAME NS_DECL_FRAMEARENA_HELPERS #ifdef DEBUG_FRAME_DUMP virtual nsresult GetFrameName(nsAString& aResult) const override { return MakeFrameName(NS_LITERAL_STRING("FramesetBlank"), aResult); } #endif virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, const nsRect& aDirtyRect, const nsDisplayListSet& aLists) override; virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize, const ReflowInput& aReflowInput, nsReflowStatus& aStatus) override; protected: explicit nsHTMLFramesetBlankFrame(nsStyleContext* aContext) : nsLeafFrame(aContext) {} 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(nsStyleContext* aContext) : nsContainerFrame(aContext) { 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() { } 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(); nsIPresShell* shell = presContext->PresShell(); nsFrameborder frameborder = GetFrameBorder(); int32_t borderWidth = GetBorderWidth(presContext, false); nscolor borderColor = GetBorderColor(); // Get the rows= cols= data HTMLFrameSetElement* ourContent = HTMLFrameSetElement::FromContent(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 nsIFrame* frame; // number of any type of children uint32_t numChildren = mContent->GetChildCount(); for (uint32_t childX = 0; childX < numChildren; childX++) { 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 (uint32_t i = childX; i < numChildren; i++) { nsIContent *child = mContent->GetChildAt(i); child->UnsetFlags(NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME); child->UnsetRestyleFlagsIfGecko(); } break; } nsIContent *child = mContent->GetChildAt(childX); child->UnsetFlags(NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME); // Also clear the restyle flags in the child like // nsCSSFrameConstructor::ProcessChildren does. child->UnsetRestyleFlagsIfGecko(); // IMPORTANT: This must match the conditions in // nsCSSFrameConstructor::ContentAppended/Inserted/Removed if (!child->IsHTMLElement()) continue; if (child->IsAnyOfHTMLElements(nsGkAtoms::frameset, nsGkAtoms::frame)) { RefPtr<nsStyleContext> kidSC; kidSC = shell->StyleSet()->ResolveStyleFor(child->AsElement(), mStyleContext); if (child->IsHTMLElement(nsGkAtoms::frameset)) { frame = NS_NewHTMLFramesetFrame(shell, kidSC); 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(shell, kidSC); 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<nsStyleContext> pseudoStyleContext; pseudoStyleContext = shell->StyleSet()-> ResolveAnonymousBoxStyle(nsCSSAnonBoxes::framesetBlank, mStyleContext); // 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 (shell) nsHTMLFramesetBlankFrame(pseudoStyleContext); 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::FromContent(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()->button == WidgetMouseEvent::eLeftButton) { EndMouseDrag(aPresContext); } break; default: break; } *aEventStatus = nsEventStatus_eConsumeNoDefault; } else { *aEventStatus = nsEventStatus_eIgnore; } return NS_OK; } nsresult nsHTMLFramesetFrame::GetCursor(const nsPoint& aPoint, nsIFrame::Cursor& aCursor) { if (mDragger) { aCursor.mCursor = (mDragger->mVertical) ? NS_STYLE_CURSOR_EW_RESIZE : NS_STYLE_CURSOR_NS_RESIZE; } else { aCursor.mCursor = NS_STYLE_CURSOR_DEFAULT; } return NS_OK; } void nsHTMLFramesetFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder, const nsRect& aDirtyRect, const nsDisplayListSet& aLists) { BuildDisplayListForInline(aBuilder, aDirtyRect, aLists); if (mDragger && aBuilder->IsForEventDelivery()) { aLists.Content()->AppendNewToTop( new (aBuilder) 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, 0, status); NS_ASSERTION(NS_FRAME_IS_COMPLETE(status), "bad status"); // Place and size the child reflowOutput.Width() = aSize.width; reflowOutput.Height() = aSize.height; FinishReflowChild(aChild, aPresContext, reflowOutput, nullptr, aOffset.x, aOffset.y, 0); } 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::FromContent(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::FromContent(aContent); if (content) { result = GetFrameBorderHelper(content); } if (eFrameborder_Notset == result) { return GetFrameBorder(); } return result; } nscolor nsHTMLFramesetFrame::GetBorderColor() { nsGenericHTMLElement *content = nsGenericHTMLElement::FromContent(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::FromContent(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); nsIPresShell *shell = aPresContext->PresShell(); StyleSetHandle styleSet = shell->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::FromContent(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) { aStatus = NS_FRAME_COMPLETE; 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<nsStyleContext> pseudoStyleContext; pseudoStyleContext = styleSet-> ResolveAnonymousBoxStyle(nsCSSAnonBoxes::horizontalFramesetBorder, mStyleContext); borderFrame = new (shell) nsHTMLFramesetBorderFrame(pseudoStyleContext, 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<nsStyleContext> pseudoStyleContext; pseudoStyleContext = styleSet-> ResolveAnonymousBoxStyle(nsCSSAnonBoxes::verticalFramesetBorder, mStyleContext); borderFrame = new (shell) nsHTMLFramesetBorderFrame(pseudoStyleContext, 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); nsSubDocumentFrame* subdocFrame; if (framesetFrame) { childVis = framesetFrame->mEdgeVisibility; mChildBorderColors[childX] = framesetFrame->mEdgeColors; } else if ((subdocFrame = do_QueryFrame(child))) { 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(); } aStatus = NS_FRAME_COMPLETE; mDrag.UnSet(); aDesiredSize.SetOverflowAreasToDesiredBounds(); FinishAndStoreOverflow(&aDesiredSize); NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aDesiredSize); } nsIAtom* nsHTMLFramesetFrame::GetType() const { return nsGkAtoms::frameSetFrame; } #ifdef DEBUG_FRAME_DUMP nsresult nsHTMLFramesetFrame::GetFrameName(nsAString& aResult) const { return MakeFrameName(NS_LITERAL_STRING("Frameset"), aResult); } #endif bool nsHTMLFramesetFrame::IsLeaf() const { // We handle constructing our kids manually return true; } 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->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 nsIPresShell::SetCapturingContent(GetContent(), CAPTURE_IGNOREALLOWED); 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 (nsIPresShell::GetCapturingContent() != GetContent()) { mDragger = nullptr; gDragInProgress = false; return; } int32_t change; // measured positive from left-to-right or top-to-bottom nsWeakFrame 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::FromContent(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->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::FromContent(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->SetAttr(kNameSpaceID_None, nsGkAtoms::rows, newRowAttr, true); } } ENSURE_TRUE(weakFrame.IsAlive()); if (change != 0) { mDrag.Reset(mDragger->mVertical, mDragger->mPrevNeighbor, change, this); } } void nsHTMLFramesetFrame::EndMouseDrag(nsPresContext* aPresContext) { nsIPresShell::SetCapturingContent(nullptr, 0); mDragger = nullptr; gDragInProgress = false; } nsIFrame* NS_NewHTMLFramesetFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) { #ifdef DEBUG const nsStyleDisplay* disp = aContext->StyleDisplay(); NS_ASSERTION(!disp->IsAbsolutelyPositionedStyle() && !disp->IsFloatingStyle(), "Framesets should not be positioned and should not float"); #endif return new (aPresShell) nsHTMLFramesetFrame(aContext); } NS_IMPL_FRAMEARENA_HELPERS(nsHTMLFramesetFrame) /******************************************************************************* * nsHTMLFramesetBorderFrame ******************************************************************************/ nsHTMLFramesetBorderFrame::nsHTMLFramesetBorderFrame(nsStyleContext* aContext, int32_t aWidth, bool aVertical, bool aVisibility) : nsLeafFrame(aContext), 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); // Override Reflow(), since we don't want to deal with what our // computed values are. SizeToAvailSize(aReflowInput, aDesiredSize); aDesiredSize.SetOverflowAreasToDesiredBounds(); aStatus = NS_FRAME_COMPLETE; } class nsDisplayFramesetBorder : public nsDisplayItem { public: nsDisplayFramesetBorder(nsDisplayListBuilder* aBuilder, nsHTMLFramesetBorderFrame* aFrame) : nsDisplayItem(aBuilder, aFrame) { MOZ_COUNT_CTOR(nsDisplayFramesetBorder); } #ifdef NS_BUILD_REFCNT_LOGGING virtual ~nsDisplayFramesetBorder() { MOZ_COUNT_DTOR(nsDisplayFramesetBorder); } #endif // 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, nsRenderingContext* aCtx) override; NS_DISPLAY_DECL_NAME("FramesetBorder", TYPE_FRAMESET_BORDER) }; void nsDisplayFramesetBorder::Paint(nsDisplayListBuilder* aBuilder, nsRenderingContext* aCtx) { static_cast<nsHTMLFramesetBorderFrame*>(mFrame)-> PaintBorder(aCtx->GetDrawTarget(), ToReferenceFrame()); } void nsHTMLFramesetBorderFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder, const nsRect& aDirtyRect, const nsDisplayListSet& aLists) { aLists.Content()->AppendNewToTop( new (aBuilder) 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::eColorID_WidgetBackground, NS_RGB(200, 200, 200)))); ColorPattern fgColor(ToDeviceColor( LookAndFeel::GetColor(LookAndFeel::eColorID_WidgetForeground, NS_RGB(0, 0, 0)))); ColorPattern hltColor(ToDeviceColor( LookAndFeel::GetColor(LookAndFeel::eColorID_Widget3DHighlight, NS_RGB(255, 255, 255)))); ColorPattern sdwColor(ToDeviceColor( LookAndFeel::GetColor(LookAndFeel::eColorID_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()->button == WidgetMouseEvent::eLeftButton) { nsHTMLFramesetFrame* parentFrame = do_QueryFrame(GetParent()); if (parentFrame) { parentFrame->StartMouseDrag(aPresContext, this, aEvent); *aEventStatus = nsEventStatus_eConsumeNoDefault; } } return NS_OK; } nsresult nsHTMLFramesetBorderFrame::GetCursor(const nsPoint& aPoint, nsIFrame::Cursor& aCursor) { if (!mCanResize) { aCursor.mCursor = NS_STYLE_CURSOR_DEFAULT; } else { aCursor.mCursor = (mVertical) ? NS_STYLE_CURSOR_EW_RESIZE : NS_STYLE_CURSOR_NS_RESIZE; } return NS_OK; } #ifdef DEBUG_FRAME_DUMP nsresult nsHTMLFramesetBorderFrame::GetFrameName(nsAString& aResult) const { return MakeFrameName(NS_LITERAL_STRING("FramesetBorder"), 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"); // Override Reflow(), since we don't want to deal with what our // computed values are. SizeToAvailSize(aReflowInput, aDesiredSize); aDesiredSize.SetOverflowAreasToDesiredBounds(); aStatus = NS_FRAME_COMPLETE; } class nsDisplayFramesetBlank : public nsDisplayItem { public: nsDisplayFramesetBlank(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame) : nsDisplayItem(aBuilder, aFrame) { MOZ_COUNT_CTOR(nsDisplayFramesetBlank); } #ifdef NS_BUILD_REFCNT_LOGGING virtual ~nsDisplayFramesetBlank() { MOZ_COUNT_DTOR(nsDisplayFramesetBlank); } #endif virtual void Paint(nsDisplayListBuilder* aBuilder, nsRenderingContext* aCtx) override; NS_DISPLAY_DECL_NAME("FramesetBlank", TYPE_FRAMESET_BLANK) }; void nsDisplayFramesetBlank::Paint(nsDisplayListBuilder* aBuilder, nsRenderingContext* aCtx) { DrawTarget* drawTarget = aCtx->GetDrawTarget(); int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel(); Rect rect = NSRectToSnappedRect(mVisibleRect, appUnitsPerDevPixel, *drawTarget); ColorPattern white(ToDeviceColor(Color(1.f, 1.f, 1.f, 1.f))); drawTarget->FillRect(rect, white); } void nsHTMLFramesetBlankFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder, const nsRect& aDirtyRect, const nsDisplayListSet& aLists) { aLists.Content()->AppendNewToTop( new (aBuilder) nsDisplayFramesetBlank(aBuilder, this)); }