diff options
Diffstat (limited to '')
| -rw-r--r-- | layout/generic/nsFrameSetFrame.h | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/layout/generic/nsFrameSetFrame.h b/layout/generic/nsFrameSetFrame.h new file mode 100644 index 0000000000..982ce6da20 --- /dev/null +++ b/layout/generic/nsFrameSetFrame.h @@ -0,0 +1,198 @@ +/* -*- 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 */ + +#ifndef nsHTMLFrameset_h___ +#define nsHTMLFrameset_h___ + +#include "mozilla/Attributes.h" +#include "mozilla/UniquePtr.h" +#include "nsContainerFrame.h" +#include "nsColor.h" + +class nsIContent; +class nsPresContext; +struct nsRect; +struct nsSize; +class nsAtom; +class nsHTMLFramesetBorderFrame; +class nsHTMLFramesetFrame; + +#define NO_COLOR 0xFFFFFFFA + +// defined at HTMLFrameSetElement.h +struct nsFramesetSpec; + +struct nsBorderColor { + nscolor mLeft; + nscolor mRight; + nscolor mTop; + nscolor mBottom; + + nsBorderColor() { Set(NO_COLOR); } + ~nsBorderColor() = default; + void Set(nscolor aColor) { mLeft = mRight = mTop = mBottom = aColor; } +}; + +enum nsFrameborder { + eFrameborder_Yes = 0, + eFrameborder_No, + eFrameborder_Notset +}; + +struct nsFramesetDrag { + nsHTMLFramesetFrame* mSource; // frameset whose border was dragged to cause + // the resize + int32_t mIndex; // index of left col or top row of effected area + int32_t mChange; // pos for left to right or top to bottom, neg otherwise + bool mVertical; // vertical if true, otherwise horizontal + + nsFramesetDrag(); + void Reset(bool aVertical, int32_t aIndex, int32_t aChange, + nsHTMLFramesetFrame* aSource); + void UnSet(); +}; + +/******************************************************************************* + * nsHTMLFramesetFrame + ******************************************************************************/ +class nsHTMLFramesetFrame final : public nsContainerFrame { + public: + NS_DECL_QUERYFRAME + NS_DECL_FRAMEARENA_HELPERS(nsHTMLFramesetFrame) + + explicit nsHTMLFramesetFrame(ComputedStyle* aStyle, + nsPresContext* aPresContext); + + virtual ~nsHTMLFramesetFrame(); + + virtual void Init(nsIContent* aContent, nsContainerFrame* aParent, + nsIFrame* aPrevInFlow) override; + + void SetInitialChildList(ChildListID aListID, + nsFrameList&& aChildList) override; + + static bool gDragInProgress; + + void GetSizeOfChild(nsIFrame* aChild, mozilla::WritingMode aWM, + mozilla::LogicalSize& aSize); + + void GetSizeOfChildAt(int32_t aIndexInParent, mozilla::WritingMode aWM, + mozilla::LogicalSize& aSize, nsIntPoint& aCellIndex); + + virtual nsresult HandleEvent(nsPresContext* aPresContext, + mozilla::WidgetGUIEvent* aEvent, + nsEventStatus* aEventStatus) override; + + mozilla::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; + +#ifdef DEBUG_FRAME_DUMP + virtual nsresult GetFrameName(nsAString& aResult) const override; +#endif + + void StartMouseDrag(nsPresContext* aPresContext, + nsHTMLFramesetBorderFrame* aBorder, + mozilla::WidgetGUIEvent* aEvent); + + void MouseDrag(nsPresContext* aPresContext, mozilla::WidgetGUIEvent* aEvent); + + void EndMouseDrag(nsPresContext* aPresContext); + + nsFrameborder GetParentFrameborder() { return mParentFrameborder; } + + void SetParentFrameborder(nsFrameborder aValue) { + mParentFrameborder = aValue; + } + + nsFramesetDrag& GetDrag() { return mDrag; } + + void RecalculateBorderResize(); + + protected: + void Scale(nscoord aDesired, int32_t aNumIndicies, int32_t* aIndicies, + int32_t aNumItems, int32_t* aItems); + + void CalculateRowCol(nsPresContext* aPresContext, nscoord aSize, + int32_t aNumSpecs, const nsFramesetSpec* aSpecs, + nscoord* aValues); + + void GenerateRowCol(nsPresContext* aPresContext, nscoord aSize, + int32_t aNumSpecs, const nsFramesetSpec* aSpecs, + nscoord* aValues, nsString& aNewAttr); + + virtual void GetDesiredSize(nsPresContext* aPresContext, + const ReflowInput& aReflowInput, + ReflowOutput& aDesiredSize); + + int32_t GetBorderWidth(nsPresContext* aPresContext, + bool aTakeForcingIntoAccount); + + int32_t GetParentBorderWidth() { return mParentBorderWidth; } + + void SetParentBorderWidth(int32_t aWidth) { mParentBorderWidth = aWidth; } + + nscolor GetParentBorderColor() { return mParentBorderColor; } + + void SetParentBorderColor(nscolor aColor) { mParentBorderColor = aColor; } + + nsFrameborder GetFrameBorder(); + + nsFrameborder GetFrameBorder(nsIContent* aContent); + + nscolor GetBorderColor(); + + nscolor GetBorderColor(nsIContent* aFrameContent); + + bool GetNoResize(nsIFrame* aChildFrame); + + void ReflowPlaceChild(nsIFrame* aChild, nsPresContext* aPresContext, + const ReflowInput& aReflowInput, nsPoint& aOffset, + nsSize& aSize, nsIntPoint* aCellIndex = 0); + + bool CanResize(bool aVertical, bool aLeft); + + bool CanChildResize(bool aVertical, bool aLeft, int32_t aChildX); + + void SetBorderResize(nsHTMLFramesetBorderFrame* aBorderFrame); + + template <typename T, class D = mozilla::DefaultDelete<T>> + using UniquePtr = mozilla::UniquePtr<T, D>; + + nsFramesetDrag mDrag; + nsBorderColor mEdgeColors; + nsHTMLFramesetBorderFrame* mDragger; + nsHTMLFramesetFrame* mTopLevelFrameset; + UniquePtr<nsHTMLFramesetBorderFrame*[]> mVerBorders; // vertical borders + UniquePtr<nsHTMLFramesetBorderFrame*[]> mHorBorders; // horizontal borders + UniquePtr<nsFrameborder[]> + mChildFrameborder; // the frameborder attr of children + UniquePtr<nsBorderColor[]> mChildBorderColors; + UniquePtr<nscoord[]> mRowSizes; // currently computed row sizes + UniquePtr<nscoord[]> mColSizes; // currently computed col sizes + mozilla::LayoutDeviceIntPoint mFirstDragPoint; + int32_t mNumRows; + int32_t mNumCols; + int32_t mNonBorderChildCount; + int32_t mNonBlankChildCount; + int32_t mEdgeVisibility; + nsFrameborder mParentFrameborder; + nscolor mParentBorderColor; + int32_t mParentBorderWidth; + int32_t mPrevNeighborOrigSize; // used during resize + int32_t mNextNeighborOrigSize; + int32_t mMinDrag; + int32_t mChildCount; +}; + +#endif |