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/* -*- 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 */
#ifndef nsHTMLFrameset_h___
#define nsHTMLFrameset_h___
#include "mozilla/Attributes.h"
#include "nsGkAtoms.h"
#include "nsContainerFrame.h"
#include "nsColor.h"
#include "nsIObserver.h"
#include "nsWeakPtr.h"
class nsIContent;
class nsIFrame;
class nsPresContext;
class nsRenderingContext;
struct nsRect;
struct nsHTMLReflowState;
struct nsSize;
class nsIAtom;
class nsHTMLFramesetBorderFrame;
class nsGUIEvent;
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() {}
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 : public nsContainerFrame
{
public:
NS_DECL_QUERYFRAME_TARGET(nsHTMLFramesetFrame)
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS
nsHTMLFramesetFrame(nsStyleContext* aContext);
virtual ~nsHTMLFramesetFrame();
NS_IMETHOD Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* aPrevInFlow) MOZ_OVERRIDE;
NS_IMETHOD SetInitialChildList(ChildListID aListID,
nsFrameList& aChildList);
static bool gDragInProgress;
void GetSizeOfChild(nsIFrame* aChild, nsSize& aSize);
void GetSizeOfChildAt(int32_t aIndexInParent,
nsSize& aSize,
nsIntPoint& aCellIndex);
NS_IMETHOD HandleEvent(nsPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus) MOZ_OVERRIDE;
NS_IMETHOD GetCursor(const nsPoint& aPoint,
nsIFrame::Cursor& aCursor) MOZ_OVERRIDE;
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists) MOZ_OVERRIDE;
NS_IMETHOD Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus) MOZ_OVERRIDE;
virtual nsIAtom* GetType() const MOZ_OVERRIDE;
#ifdef DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
#endif
virtual bool IsLeaf() const MOZ_OVERRIDE;
void StartMouseDrag(nsPresContext* aPresContext,
nsHTMLFramesetBorderFrame* aBorder,
nsGUIEvent* aEvent);
void MouseDrag(nsPresContext* aPresContext,
nsGUIEvent* 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 nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& 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 nsHTMLReflowState& aReflowState,
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);
static int FrameResizePrefCallback(const char* aPref, void* aClosure);
nsFramesetDrag mDrag;
nsBorderColor mEdgeColors;
nsHTMLFramesetBorderFrame* mDragger;
nsHTMLFramesetFrame* mTopLevelFrameset;
nsHTMLFramesetBorderFrame** mVerBorders; // vertical borders
nsHTMLFramesetBorderFrame** mHorBorders; // horizontal borders
nsFrameborder* mChildFrameborder; // the frameborder attr of children
nsBorderColor* mChildBorderColors;
nscoord* mRowSizes; // currently computed row sizes
nscoord* mColSizes; // currently computed col sizes
nsIntPoint 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;
bool mForceFrameResizability;
};
#endif
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