/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: NPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Netscape Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Pierre Phaneuf * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the NPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the NPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #include "nsTableOuterFrame.h" #include "nsTableFrame.h" #include "nsIReflowCommand.h" #include "nsIStyleContext.h" #include "nsStyleConsts.h" #include "nsIPresContext.h" #include "nsIRenderingContext.h" #include "nsCSSRendering.h" #include "nsIContent.h" #include "nsVoidArray.h" #include "nsIPtr.h" #include "prinrval.h" #include "nsHTMLIIDs.h" #include "nsLayoutAtoms.h" #include "nsHTMLParts.h" #include "nsIPresShell.h" #ifdef ACCESSIBILITY #include "nsIAccessibilityService.h" #endif #include "nsIServiceManager.h" #include "nsIDOMNode.h" #include "nsIPrintContext.h" /* ----------- nsTableCaptionFrame ---------- */ #define NS_TABLE_FRAME_CAPTION_LIST_INDEX 0 #define NO_SIDE 100 // caption frame nsTableCaptionFrame::nsTableCaptionFrame() { // shrink wrap SetFlags(NS_BLOCK_SPACE_MGR|NS_BLOCK_WRAP_SIZE); } nsTableCaptionFrame::~nsTableCaptionFrame() { } NS_IMETHODIMP nsTableOuterFrame::Destroy(nsIPresContext* aPresContext) { if (mCaptionFrame) { mCaptionFrame->Destroy(aPresContext); } return nsHTMLContainerFrame::Destroy(aPresContext); } NS_IMETHODIMP nsTableCaptionFrame::GetFrameType(nsIAtom** aType) const { NS_PRECONDITION(nsnull != aType, "null OUT parameter pointer"); *aType = nsLayoutAtoms::tableCaptionFrame; NS_ADDREF(*aType); return NS_OK; } nsresult NS_NewTableCaptionFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame) { NS_PRECONDITION(aNewFrame, "null OUT ptr"); if (nsnull == aNewFrame) { return NS_ERROR_NULL_POINTER; } nsTableCaptionFrame* it = new (aPresShell) nsTableCaptionFrame; if (nsnull == it) { return NS_ERROR_OUT_OF_MEMORY; } *aNewFrame = it; return NS_OK; } /* ----------- nsTableOuterFrame ---------- */ NS_IMPL_ADDREF_INHERITED(nsTableOuterFrame, nsHTMLContainerFrame) NS_IMPL_RELEASE_INHERITED(nsTableOuterFrame, nsHTMLContainerFrame) nsTableOuterFrame::nsTableOuterFrame() { mPriorAvailWidth = 0; #ifdef DEBUG_TABLE_REFLOW_TIMING mTimer = new nsReflowTimer(this); #endif } nsTableOuterFrame::~nsTableOuterFrame() { #ifdef DEBUG_TABLE_REFLOW_TIMING nsTableFrame::DebugReflowDone(this); #endif } nsresult nsTableOuterFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr) { if (NULL == aInstancePtr) { return NS_ERROR_NULL_POINTER; } if (aIID.Equals(NS_GET_IID(nsITableLayout))) { // note there is no addref here, frames are not addref'd *aInstancePtr = (void*)(nsITableLayout*)this; return NS_OK; } return nsHTMLContainerFrame::QueryInterface(aIID, aInstancePtr); } #ifdef ACCESSIBILITY NS_IMETHODIMP nsTableOuterFrame::GetAccessible(nsIAccessible** aAccessible) { nsCOMPtr accService = do_GetService("@mozilla.org/accessibilityService;1"); if (accService) { nsIAccessible* acc = nsnull; return accService->CreateHTMLTableAccessible(NS_STATIC_CAST(nsIFrame*, this), aAccessible); } return NS_ERROR_FAILURE; } #endif NS_IMETHODIMP nsTableOuterFrame::IsPercentageBase(PRBool& aBase) const { aBase = PR_FALSE; return NS_OK; } // tables change 0 width into auto, trees override this and do nothing NS_IMETHODIMP nsTableOuterFrame::AdjustZeroWidth() { /* It does not appear that this function is needed any longer, since the content node handles the deprecated width="0" attribute case. -- dwh */ return NS_OK; } NS_IMETHODIMP nsTableOuterFrame::Init(nsIPresContext* aPresContext, nsIContent* aContent, nsIFrame* aParent, nsIStyleContext* aContext, nsIFrame* aPrevInFlow) { nsresult rv = nsHTMLContainerFrame::Init(aPresContext, aContent, aParent, aContext, aPrevInFlow); if (NS_FAILED(rv) || !mStyleContext) return rv; AdjustZeroWidth(); // record that children that are ignorable whitespace should be excluded mState |= NS_FRAME_EXCLUDE_IGNORABLE_WHITESPACE; return rv; } NS_IMETHODIMP nsTableOuterFrame::FirstChild(nsIPresContext* aPresContext, nsIAtom* aListName, nsIFrame** aFirstChild) const { NS_PRECONDITION(nsnull != aFirstChild, "null OUT parameter pointer"); *aFirstChild = (nsLayoutAtoms::captionList == aListName) ? mCaptionFrame : mFrames.FirstChild(); return NS_OK; } NS_IMETHODIMP nsTableOuterFrame::GetAdditionalChildListName(PRInt32 aIndex, nsIAtom** aListName) const { NS_PRECONDITION(nsnull != aListName, "null OUT parameter pointer"); if (aIndex < 0) { return NS_ERROR_INVALID_ARG; } *aListName = nsnull; switch (aIndex) { case NS_TABLE_FRAME_CAPTION_LIST_INDEX: *aListName = nsLayoutAtoms::captionList; NS_ADDREF(*aListName); break; } return NS_OK; } NS_IMETHODIMP nsTableOuterFrame::SetInitialChildList(nsIPresContext* aPresContext, nsIAtom* aListName, nsIFrame* aChildList) { if (nsLayoutAtoms::captionList == aListName) { // the frame constructor already checked for table-caption display type mCaptionFrame = aChildList; } else { mFrames.SetFrames(aChildList); mInnerTableFrame = aChildList; } return NS_OK; } NS_IMETHODIMP nsTableOuterFrame::AppendFrames(nsIPresContext* aPresContext, nsIPresShell& aPresShell, nsIAtom* aListName, nsIFrame* aFrameList) { nsresult rv; // We only have two child frames: the inner table and one caption frame. // The inner frame is provided when we're initialized, and it cannot change if (nsLayoutAtoms::captionList == aListName) { NS_PRECONDITION(!mCaptionFrame, "already have a caption frame"); // We only support having a single caption frame if (mCaptionFrame || (LengthOf(aFrameList) > 1)) { rv = NS_ERROR_UNEXPECTED; } else { // Insert the caption frame into the child list mCaptionFrame = aFrameList; // Reflow the new caption frame. It's already marked dirty, so generate a reflow // command that tells us to reflow our dirty child frames nsIReflowCommand* reflowCmd; rv = NS_NewHTMLReflowCommand(&reflowCmd, this, nsIReflowCommand::ReflowDirty); if (NS_SUCCEEDED(rv)) { aPresShell.AppendReflowCommand(reflowCmd); NS_RELEASE(reflowCmd); } } } else { NS_PRECONDITION(PR_FALSE, "unexpected child frame type"); rv = NS_ERROR_UNEXPECTED; } return rv; } NS_IMETHODIMP nsTableOuterFrame::InsertFrames(nsIPresContext* aPresContext, nsIPresShell& aPresShell, nsIAtom* aListName, nsIFrame* aPrevFrame, nsIFrame* aFrameList) { NS_PRECONDITION(!aPrevFrame, "invalid previous frame"); return AppendFrames(aPresContext, aPresShell, aListName, aFrameList); } NS_IMETHODIMP nsTableOuterFrame::RemoveFrame(nsIPresContext* aPresContext, nsIPresShell& aPresShell, nsIAtom* aListName, nsIFrame* aOldFrame) { nsresult rv; // We only have two child frames: the inner table and one caption frame. // The inner frame can't be removed so this should be the caption NS_PRECONDITION(nsLayoutAtoms::captionList == aListName, "can't remove inner frame"); NS_PRECONDITION(aOldFrame == mCaptionFrame, "invalid caption frame"); // See if the caption's minimum width impacted the inner table if (mMinCaptionWidth > mRect.width) { // The old caption width had an effect on the inner table width so // we're going to need to reflow it. Mark it dirty nsFrameState frameState; mInnerTableFrame->GetFrameState(&frameState); frameState |= NS_FRAME_IS_DIRTY; mInnerTableFrame->SetFrameState(frameState); } // Remove the caption frame and destroy it if (mCaptionFrame && (mCaptionFrame == aOldFrame)) { mCaptionFrame->Destroy(aPresContext); mCaptionFrame = nsnull; mMinCaptionWidth = 0; } // Generate a reflow command so we get reflowed nsIReflowCommand* reflowCmd; rv = NS_NewHTMLReflowCommand(&reflowCmd, this, nsIReflowCommand::ReflowDirty); if (NS_SUCCEEDED(rv)) { aPresShell.AppendReflowCommand(reflowCmd); NS_RELEASE(reflowCmd); } return NS_OK; } NS_METHOD nsTableOuterFrame::Paint(nsIPresContext* aPresContext, nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect, nsFramePaintLayer aWhichLayer, PRUint32 aFlags) { #ifdef DEBUG // for debug... if ((NS_FRAME_PAINT_LAYER_DEBUG == aWhichLayer) && GetShowFrameBorders()) { aRenderingContext.SetColor(NS_RGB(255,0,0)); aRenderingContext.DrawRect(0, 0, mRect.width, mRect.height); } #endif PRBool isVisible; if (NS_SUCCEEDED(IsVisibleForPainting(aPresContext, aRenderingContext, PR_FALSE, &isVisible)) && !isVisible) { return NS_OK; } // the remaining code was copied from nsContainerFrame::PaintChildren since // it only paints the primary child list const nsStyleDisplay* disp = (const nsStyleDisplay*) mStyleContext->GetStyleData(eStyleStruct_Display); // Child elements have the opportunity to override the visibility property // of their parent and display even if the parent is hidden // If overflow is hidden then set the clip rect so that children // don't leak out of us if (NS_STYLE_OVERFLOW_HIDDEN == disp->mOverflow) { aRenderingContext.PushState(); SetOverflowClipRect(aRenderingContext); } if (mCaptionFrame) { PaintChild(aPresContext, aRenderingContext, aDirtyRect, mCaptionFrame, aWhichLayer); } nsIFrame* kid = mFrames.FirstChild(); while (nsnull != kid) { PaintChild(aPresContext, aRenderingContext, aDirtyRect, kid, aWhichLayer); kid->GetNextSibling(&kid); } if (NS_STYLE_OVERFLOW_HIDDEN == disp->mOverflow) { PRBool clipState; aRenderingContext.PopState(clipState); } return NS_OK; } NS_IMETHODIMP nsTableOuterFrame::GetFrameForPoint(nsIPresContext* aPresContext, const nsPoint& aPoint, nsFramePaintLayer aWhichLayer, nsIFrame** aFrame) { nsresult rv; // caption frames live in a different list which we need to check separately if (mCaptionFrame) { rv = GetFrameForPointUsing(aPresContext, aPoint, nsLayoutAtoms::captionList, NS_FRAME_PAINT_LAYER_FOREGROUND, PR_FALSE, aFrame); if (NS_OK == rv) { return NS_OK; } } // this should act like a block, so we need to override return GetFrameForPointUsing(aPresContext, aPoint, nsnull, aWhichLayer, (aWhichLayer == NS_FRAME_PAINT_LAYER_BACKGROUND), aFrame); } NS_IMETHODIMP nsTableOuterFrame::SetSelected(nsIPresContext* aPresContext, nsIDOMRange *aRange, PRBool aSelected, nsSpread aSpread) { nsresult result = nsFrame::SetSelected(aPresContext, aRange,aSelected, aSpread); if (NS_SUCCEEDED(result) && mInnerTableFrame) return mInnerTableFrame->SetSelected(aPresContext, aRange,aSelected, aSpread); return result; } // GetParentStyleContextProvider: // The innerTableFame is he parent style context provider // Fortunately, we cache that as a data member, so just return the cached pointer value // NS_IMETHODIMP nsTableOuterFrame::GetParentStyleContextProvider(nsIPresContext* aPresContext, nsIFrame** aProviderFrame, nsContextProviderRelationship& aRelationship) { NS_ASSERTION(aProviderFrame && aPresContext, "null argument: aPresContext and-or aProviderFrame"); if (aProviderFrame) { // parent context provider is the innerTableFrame NS_ASSERTION(mInnerTableFrame, "innerTableFrame should not be null"); *aProviderFrame = mInnerTableFrame; aRelationship = eContextProvider_Descendant; } return ((aProviderFrame != nsnull) && (*aProviderFrame != nsnull)) ? NS_OK : NS_ERROR_FAILURE; } // INCREMENTAL REFLOW HELPER FUNCTIONS nsSize GetFrameSize(nsIFrame& aFrame) { nsRect rect; aFrame.GetRect(rect); nsSize size(rect.width, rect.height); return size; } void nsTableOuterFrame::ZeroAutoMargin(nsHTMLReflowState& aReflowState, nsMargin& aMargin) { if (eStyleUnit_Auto == aReflowState.mStyleMargin->mMargin.GetLeftUnit()) { aMargin.left = 0; } if (eStyleUnit_Auto == aReflowState.mStyleMargin->mMargin.GetRightUnit()) { aMargin.right = 0; } } void FixAutoMargins(nscoord aAvailWidth, nscoord aChildWidth, nsHTMLReflowState& aReflowState) { // see if there are auto margins. they may have been set to 0 in mComputedMargin PRBool hasAutoMargin = eStyleUnit_Auto == aReflowState.mStyleMargin->mMargin.GetLeftUnit() || eStyleUnit_Auto == aReflowState.mStyleMargin->mMargin.GetRightUnit(); if (hasAutoMargin) { nscoord width = aChildWidth; if (NS_UNCONSTRAINEDSIZE == width) { width = 0; } aReflowState.CalculateBlockSideMargins(aAvailWidth, width); } } // get the margin and padding data. nsHTMLReflowState doesn't handle the // case of auto margins void GetMarginPadding(nsIPresContext* aPresContext, const nsHTMLReflowState& aOuterRS, nsIFrame* aChildFrame, nsMargin& aMargin, nsMargin& aMarginNoAuto, nsMargin& aPadding) { // construct a reflow state to compute margin and padding. Auto margins // will not be computed at this time. nsHTMLReflowState childRS(aPresContext, aOuterRS, aChildFrame, nsSize(aOuterRS.availableWidth, aOuterRS.availableHeight), eReflowReason_Resize); nsRect childRect; aChildFrame->GetRect(childRect); FixAutoMargins(aOuterRS.availableWidth, childRect.width, childRS); aMargin = childRS.mComputedMargin; aMarginNoAuto = aMargin; nsTableOuterFrame::ZeroAutoMargin(childRS, aMarginNoAuto); aPadding = childRS.mComputedPadding; } nscoord CalcAutoMargin(nscoord aAutoMargin, nscoord aOppositeMargin, nscoord aContainBlockSize, nscoord aFrameSize, float aPixelToTwips) { nscoord margin; if (NS_AUTOMARGIN == aOppositeMargin) margin = nsTableFrame::RoundToPixel((aContainBlockSize - aFrameSize) / 2, aPixelToTwips); else { margin = aContainBlockSize - aFrameSize - aOppositeMargin; } return PR_MAX(0, margin); } nscoord nsTableOuterFrame::GetChildAvailWidth(nsIPresContext* aPresContext, nsIFrame* aChildFrame, const nsHTMLReflowState& aOuterRS, nscoord aOuterWidth, nsMargin& aMarginNoAuto, nsMargin& aPadding) { if (NS_UNCONSTRAINEDSIZE == aOuterWidth) return aOuterWidth; nsMargin marginIgnore; GetMarginPadding(aPresContext, aOuterRS, aChildFrame, marginIgnore, aMarginNoAuto, aPadding); nscoord width = aOuterWidth; if (NS_UNCONSTRAINEDSIZE != width) { width = aOuterWidth - aMarginNoAuto.left - aMarginNoAuto.right; width = PR_MAX(width, mMinCaptionWidth); } return width; } void MoveFrameTo(nsIPresContext* aPresContext, nsIFrame* aFrame, nscoord aX, nscoord aY) { nsRect oldRect; aFrame->GetRect(oldRect); if ((oldRect.x != aX) || (oldRect.y != aY)) { aFrame->MoveTo(aPresContext, aX, aY); nsTableFrame::RePositionViews(aPresContext, aFrame); } } nsSize GetContainingBlockSize(const nsHTMLReflowState& aOuterRS) { nsSize size(0,0); const nsHTMLReflowState* containRS = nsHTMLReflowState::GetContainingBlockReflowState(aOuterRS.parentReflowState); if (containRS) { size.width = containRS->mComputedWidth; if (NS_UNCONSTRAINEDSIZE == size.width) { size.width = 0; } size.height = containRS->mComputedHeight; if (NS_UNCONSTRAINEDSIZE == size.height) { size.height = 0; } } return size; } void nsTableOuterFrame::InvalidateDamage(nsIPresContext* aPresContext, PRUint8 aCaptionSide, nsSize& aOuterSize, PRBool aInnerChanged, PRBool aCaptionChanged) { if (!aInnerChanged && !aCaptionChanged) return; nsRect damage; if (aInnerChanged && aCaptionChanged) { damage = nsRect(0, 0, aOuterSize.width, aOuterSize.height); } else { nsRect innerRect, captionRect(0,0,0,0); mInnerTableFrame->GetRect(innerRect); if (mCaptionFrame) { mCaptionFrame->GetRect(captionRect); } // only works for vertical captions { damage.x = 0; damage.width = aOuterSize.width; switch(aCaptionSide) { case NS_SIDE_BOTTOM: if (aCaptionChanged) { damage.y = innerRect.y; damage.height = aOuterSize.height - damage.y; } else { damage.y = 0; damage.height = captionRect.y; } break; default: if (aCaptionChanged) { damage.y = 0; damage.height = innerRect.y; } else { damage.y = captionRect.y; damage.height = aOuterSize.height - damage.y; } break; } } Invalidate(aPresContext, damage); } nscoord nsTableOuterFrame::GetCaptionAvailWidth(nsIPresContext* aPresContext, nsIFrame* aCaptionFrame, const nsHTMLReflowState& aOuterRS, nscoord* aInnerWidth, const nsMargin* aInnerMarginNoAuto) { nscoord outerWidth; if (aInnerWidth) { nscoord innerWidth = *aInnerWidth; if (NS_UNCONSTRAINEDSIZE == innerWidth) { outerWidth = innerWidth; } else { nsMargin innerMargin(0,0,0,0); if (aInnerMarginNoAuto) { innerMargin = *aInnerMarginNoAuto; } outerWidth = innerWidth + innerMargin.left + innerMargin.right; } } else { nsSize outerSize = GetFrameSize(*this); outerWidth = outerSize.width; } if (NS_UNCONSTRAINEDSIZE == outerWidth) { return outerWidth; } else { nsMargin capMargin, capPad; return GetChildAvailWidth(aPresContext, aCaptionFrame, aOuterRS, outerWidth, capMargin, capPad); } } nsSize nsTableOuterFrame::GetMaxElementSize(const nsMargin& aInnerMargin, const nsMargin& aInnerPadding, const nsMargin& aCaptionMargin) { nsSize size(0,0); size.width += aInnerMargin.left + ((nsTableFrame *)mInnerTableFrame)->GetMinWidth() + aInnerMargin.right; if (mCaptionFrame) { nscoord capWidth = mMinCaptionWidth + aCaptionMargin.left + aCaptionMargin.right; if (capWidth > size.width) { size.width = capWidth; } } // leave max element height set to 0. It is not used for anything return size; } nscoord nsTableOuterFrame::GetMaxWidth(PRUint8 aCaptionSide, const nsMargin& aInnerMargin, const nsMargin& aCaptionMargin) { nscoord maxWidth; switch(aCaptionSide) { case NS_SIDE_TOP: case NS_SIDE_BOTTOM: case NS_SIDE_LEFT: case NS_SIDE_RIGHT: default: // no caption maxWidth = ((nsTableFrame *)mInnerTableFrame)->GetPreferredWidth() + aInnerMargin.left + aInnerMargin.right; if (mCaptionFrame) { maxWidth = PR_MAX(maxWidth, mMinCaptionWidth + aCaptionMargin.left + aCaptionMargin.right); } } return maxWidth; } PRUint8 nsTableOuterFrame::GetCaptionSide() { const nsStyleTableBorder* tableStyle; if (mCaptionFrame) { mCaptionFrame->GetStyleData(eStyleStruct_TableBorder, ((const nsStyleStruct *&)tableStyle)); return tableStyle->mCaptionSide; } else { return NO_SIDE; // no caption } } void nsTableOuterFrame::SetDesiredSize(PRUint8 aCaptionSide, const nsMargin& aInnerMargin, const nsMargin& aCaptionMargin, nscoord& aWidth, nscoord& aHeight) { aWidth = aHeight = 0; nsRect innerRect; mInnerTableFrame->GetRect(innerRect); nsRect captionRect(0,0,0,0); if (mCaptionFrame) { mCaptionFrame->GetRect(captionRect); } switch(aCaptionSide) { case NS_SIDE_TOP: case NS_SIDE_BOTTOM: case NS_SIDE_LEFT: case NS_SIDE_RIGHT: default: // no caption aWidth = innerRect.XMost() + aInnerMargin.right; aWidth = PR_MAX(aWidth, captionRect.XMost() + aCaptionMargin.right); break; } switch(aCaptionSide) { case NS_SIDE_BOTTOM: aHeight = captionRect.YMost() + aCaptionMargin.bottom; break; default: // top caption or no caption aHeight = innerRect.YMost() + aInnerMargin.bottom; } } nsresult nsTableOuterFrame::GetCaptionOrigin(nsIPresContext* aPresContext, PRUint32 aCaptionSide, const nsSize& aContainBlockSize, const nsSize& aInnerSize, const nsMargin& aInnerMargin, const nsSize& aCaptionSize, nsMargin& aCaptionMargin, nsPoint& aOrigin) { aOrigin.x = aOrigin.y = 0; if ((NS_UNCONSTRAINEDSIZE == aInnerSize.width) || (NS_UNCONSTRAINEDSIZE == aInnerSize.width) || (NS_UNCONSTRAINEDSIZE == aCaptionSize.width) || (NS_UNCONSTRAINEDSIZE == aCaptionSize.width)) { return NS_OK; } if (!mCaptionFrame) return NS_OK; float p2t; aPresContext->GetScaledPixelsToTwips(&p2t); nscoord collapseMargin; switch(aCaptionSide) { case NS_SIDE_BOTTOM: if (NS_AUTOMARGIN == aCaptionMargin.left) { aCaptionMargin.left = CalcAutoMargin(aCaptionMargin.left, aCaptionMargin.right, aContainBlockSize.width, aCaptionSize.width, p2t); } aOrigin.x = aCaptionMargin.left; if (NS_AUTOMARGIN == aCaptionMargin.top) { aCaptionMargin.top = 0; } collapseMargin = PR_MAX(aCaptionMargin.top, aInnerMargin.bottom); if (NS_AUTOMARGIN == aCaptionMargin.bottom) { nscoord height = aInnerSize.height + collapseMargin + aCaptionSize.height; aCaptionMargin.bottom = CalcAutoMargin(aCaptionMargin.bottom, aInnerMargin.top, aContainBlockSize.height, height, p2t); } aOrigin.y = aInnerMargin.top + aInnerSize.height + collapseMargin; break; default: // all others are treated as top for now if (NS_AUTOMARGIN == aCaptionMargin.left) { aCaptionMargin.left = CalcAutoMargin(aCaptionMargin.left, aCaptionMargin.right, aContainBlockSize.width, aCaptionSize.width, p2t); } aOrigin.x = aCaptionMargin.left; if (NS_AUTOMARGIN == aCaptionMargin.bottom) { aCaptionMargin.bottom = 0; } if (NS_AUTOMARGIN == aCaptionMargin.top) { collapseMargin = PR_MAX(aCaptionMargin.bottom, aInnerMargin.top); nscoord height = aCaptionSize.height + collapseMargin + aInnerSize.height; aCaptionMargin.top = CalcAutoMargin(aCaptionMargin.top, aInnerMargin.bottom, aContainBlockSize.height, height, p2t); } aOrigin.y = aCaptionMargin.top; break; } return NS_OK; } nsresult nsTableOuterFrame::GetInnerOrigin(nsIPresContext* aPresContext, PRUint32 aCaptionSide, const nsSize& aContainBlockSize, const nsSize& aCaptionSize, const nsMargin& aCaptionMargin, const nsSize& aInnerSize, nsMargin& aInnerMargin, nsPoint& aOrigin) { aOrigin.x = aOrigin.y = 0; if ((NS_UNCONSTRAINEDSIZE == aInnerSize.width) || (NS_UNCONSTRAINEDSIZE == aInnerSize.width) || (NS_UNCONSTRAINEDSIZE == aCaptionSize.width) || (NS_UNCONSTRAINEDSIZE == aCaptionSize.width)) { return NS_OK; } float p2t; aPresContext->GetScaledPixelsToTwips(&p2t); nscoord collapseMargin; switch(aCaptionSide) { case NS_SIDE_BOTTOM: if (NS_AUTOMARGIN == aInnerMargin.left) { aInnerMargin.left = CalcAutoMargin(aInnerMargin.left, aInnerMargin.right, aContainBlockSize.width, aInnerSize.width, p2t); } aOrigin.x = aInnerMargin.left; if (NS_AUTOMARGIN == aInnerMargin.bottom) { aInnerMargin.bottom = 0; } if (NS_AUTOMARGIN == aInnerMargin.top) { collapseMargin = PR_MAX(aInnerMargin.bottom, aCaptionMargin.top); nscoord height = aInnerSize.height + collapseMargin + aCaptionSize.height; aInnerMargin.top = CalcAutoMargin(aInnerMargin.top, aCaptionMargin.bottom, aContainBlockSize.height, height, p2t); } aOrigin.y = aInnerMargin.top; break; default: // all others are treated as top for now if (NS_AUTOMARGIN == aInnerMargin.left) { aInnerMargin.left = CalcAutoMargin(aInnerMargin.left, aInnerMargin.right, aContainBlockSize.width, aInnerSize.width, p2t); } aOrigin.x = aInnerMargin.left; if (NS_AUTOMARGIN == aInnerMargin.top) { aInnerMargin.top = 0; } collapseMargin = PR_MAX(aCaptionMargin.bottom, aInnerMargin.top); if (NS_AUTOMARGIN == aInnerMargin.bottom) { nscoord height = aCaptionSize.height + collapseMargin + aInnerSize.height; aInnerMargin.bottom = CalcAutoMargin(aCaptionMargin.bottom, aInnerMargin.top, aContainBlockSize.height, height, p2t); } aOrigin.y = aCaptionMargin.top + aCaptionSize.height + collapseMargin; break; } return NS_OK; } // helper method for determining if this is a nested table or not PRBool nsTableOuterFrame::IsNested(const nsHTMLReflowState& aReflowState) const { PRBool result = PR_FALSE; // Walk up the reflow state chain until we find a cell or the root const nsHTMLReflowState* rs = aReflowState.parentReflowState; while (rs) { nsCOMPtr frameType; rs->frame->GetFrameType(getter_AddRefs(frameType)); if (nsLayoutAtoms::tableFrame == frameType.get()) { result = PR_TRUE; break; } rs = rs->parentReflowState; } return result; } PRBool nsTableOuterFrame::IsAutoWidth(nsIFrame& aTableOrCaption, PRBool* aIsPctWidth) { PRBool isAuto = PR_TRUE; // the default if (aIsPctWidth) { *aIsPctWidth = PR_FALSE; } nsCOMPtr styleContext; aTableOrCaption.GetStyleContext(getter_AddRefs(styleContext)); nsStylePosition* position = (nsStylePosition*)styleContext->GetStyleData(eStyleStruct_Position); switch (position->mWidth.GetUnit()) { case eStyleUnit_Auto: // specified auto width case eStyleUnit_Proportional: // illegal for table, so ignored break; case eStyleUnit_Inherit: // get width of parent and see if it is a specified value or not // XXX for now, just return true break; case eStyleUnit_Coord: isAuto = PR_FALSE; break; case eStyleUnit_Percent: if (position->mWidth.GetPercentValue() > 0.0f) { isAuto = PR_FALSE; if (aIsPctWidth) { *aIsPctWidth = PR_TRUE; } } break; default: break; } return isAuto; } // eReflowReason_Resize was being used for incremental cases nsresult nsTableOuterFrame::OuterReflowChild(nsIPresContext* aPresContext, nsIFrame* aChildFrame, const nsHTMLReflowState& aOuterRS, nsHTMLReflowMetrics& aMetrics, nscoord* aAvailWidth, nsSize& aDesiredSize, nsMargin& aMargin, nsMargin& aMarginNoAuto, nsMargin& aPadding, nsReflowReason aReflowReason, nsReflowStatus& aStatus) { aMargin = aPadding = nsMargin(0,0,0,0); nscoord availWidth = GetChildAvailWidth(aPresContext, aChildFrame, aOuterRS, aOuterRS.availableWidth, aMargin, aPadding); if (aAvailWidth) { availWidth = *aAvailWidth; } // work around pixel rounding errors, round down to ensure we don't exceed the avail height in float p2t; aPresContext->GetScaledPixelsToTwips(&p2t); nscoord availHeight = aOuterRS.availableHeight; if (NS_UNCONSTRAINEDSIZE != availHeight) { availHeight = nsTableFrame::RoundToPixel(availHeight, p2t, eAlwaysRoundDown); } nsHTMLReflowState childRS(aPresContext, aOuterRS, aChildFrame, nsSize(availWidth, availHeight)); childRS.reason = aReflowReason; childRS.mPercentHeightObserver = nsnull; // the observer is for non table related frames inside cells // If mComputedWidth > availWidth and availWidth >= minWidth for a nested percent table // then adjust mComputedWidth based on availableWidth if this isn't the intial reflow if ((childRS.mComputedWidth > childRS.availableWidth) && (NS_UNCONSTRAINEDSIZE != childRS.mComputedWidth) && (eReflowReason_Initial != aReflowReason) && IsNested(aOuterRS)) { PRBool isPctWidth; IsAutoWidth(*aChildFrame, &isPctWidth); if (isPctWidth) { if ( ((aChildFrame == mInnerTableFrame) && ((nsTableFrame*)aChildFrame)->GetMinWidth() <= childRS.availableWidth) || (aChildFrame != mInnerTableFrame)) { childRS.mComputedWidth = childRS.availableWidth - childRS.mComputedBorderPadding.left - childRS.mComputedBorderPadding.right; } } } // use the current position as a best guess for placement nsRect childRect; aChildFrame->GetRect(childRect); nsresult rv = ReflowChild(aChildFrame, aPresContext, aMetrics, childRS, childRect.x, childRect.y, NS_FRAME_NO_MOVE_FRAME, aStatus); if (NS_FAILED(rv)) return rv; FixAutoMargins(aOuterRS.availableWidth, aMetrics.width, childRS); aMargin = childRS.mComputedMargin; aMarginNoAuto = childRS.mComputedMargin; ZeroAutoMargin(childRS, aMarginNoAuto); aDesiredSize.width = aMetrics.width; aDesiredSize.height = aMetrics.height; return rv; } void nsTableOuterFrame::UpdateReflowMetrics(PRUint8 aCaptionSide, nsHTMLReflowMetrics& aMet, const nsMargin& aInnerMargin, const nsMargin& aInnerMarginNoAuto, const nsMargin& aInnerPadding, const nsMargin& aCaptionMargin, const nsMargin& aCaptionMarginNoAuto) { SetDesiredSize(aCaptionSide, aInnerMargin, aCaptionMargin, aMet.width, aMet.height); // set maxElementSize width if requested if (aMet.maxElementSize) { *aMet.maxElementSize = GetMaxElementSize(aInnerMarginNoAuto, aInnerPadding, aCaptionMarginNoAuto); } // set maximum width if requested if (aMet.mFlags & NS_REFLOW_CALC_MAX_WIDTH) { aMet.mMaximumWidth = GetMaxWidth(aCaptionSide, aInnerMarginNoAuto, aCaptionMarginNoAuto); } } nsresult nsTableOuterFrame::IncrementalReflow(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus) { nsresult rv = NS_OK; // determine if this frame is the target or not nsIFrame* target=nsnull; rv = aReflowState.reflowCommand->GetTarget(target); if (NS_SUCCEEDED(rv) && target) { if (this == target) { rv = IR_TargetIsMe(aPresContext, aDesiredSize, aReflowState, aStatus); } else { // Get the next frame in the reflow chain nsIFrame* nextFrame; aReflowState.reflowCommand->GetNext(nextFrame); NS_ASSERTION(nextFrame, "next frame in reflow command is null"); rv = IR_TargetIsChild(aPresContext, aDesiredSize, aReflowState, aStatus, nextFrame); } } return rv; } nsresult nsTableOuterFrame::IR_TargetIsChild(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus, nsIFrame* aNextFrame) { nsresult rv; if (!aNextFrame) { // this will force Reflow to return the height of the last reflow rather than 0 aDesiredSize.height = mRect.height; return NS_OK; } if (aNextFrame == mInnerTableFrame) { rv = IR_TargetIsInnerTableFrame(aPresContext, aDesiredSize, aReflowState, aStatus); } else if (aNextFrame == mCaptionFrame) { rv = IR_TargetIsCaptionFrame(aPresContext, aDesiredSize, aReflowState, aStatus); } else { const nsStyleDisplay* nextDisplay; aNextFrame->GetStyleData(eStyleStruct_Display, (const nsStyleStruct *&)nextDisplay); if (NS_STYLE_DISPLAY_TABLE_HEADER_GROUP==nextDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP==nextDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_ROW_GROUP ==nextDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP==nextDisplay->mDisplay) { rv = IR_TargetIsInnerTableFrame(aPresContext, aDesiredSize, aReflowState, aStatus); } else { NS_ASSERTION(PR_FALSE, "illegal next frame in incremental reflow."); rv = NS_ERROR_ILLEGAL_VALUE; } } return rv; } nsresult nsTableOuterFrame::IR_TargetIsInnerTableFrame(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus) { nsresult rv = IR_InnerTableReflow(aPresContext, aDesiredSize, aReflowState, aStatus); return rv; } nsresult nsTableOuterFrame::IR_TargetIsCaptionFrame(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aOuterRS, nsReflowStatus& aStatus) { nsresult rv = NS_OK; aStatus = NS_FRAME_COMPLETE; PRUint8 captionSide = GetCaptionSide(); nsSize captionSize, captionMES; nsMargin captionMargin, captionMarginNoAuto, captionPadding; // reflow the caption frame, getting it's MES nscoord availWidth = GetCaptionAvailWidth(aPresContext, mCaptionFrame, aOuterRS); nsHTMLReflowMetrics captionMet(&captionMES); nsReflowStatus capStatus; // don't let the caption cause incomplete OuterReflowChild(aPresContext, mCaptionFrame, aOuterRS, captionMet, &availWidth, captionSize, captionMargin, captionMarginNoAuto, captionPadding, eReflowReason_Incremental, capStatus); nsMargin innerMargin, innerMarginNoAuto, innerPadding; nsPoint innerOrigin; nsSize containSize = GetContainingBlockSize(aOuterRS); // for now just reflow the table if a style changed. This should be improved nsIReflowCommand::ReflowType reflowCommandType; aOuterRS.reflowCommand->GetType(reflowCommandType); PRBool needInnerReflow = (nsIReflowCommand::StyleChanged == reflowCommandType) ? PR_TRUE : PR_FALSE; if (mMinCaptionWidth != captionMES.width) { // set the new caption min width, and set state to reflow the inner table if necessary mMinCaptionWidth = captionMES.width; // see if the captions min width could cause the table to be wider // XXX this really only affects an auto width table if ((mMinCaptionWidth + captionMarginNoAuto.left + captionMarginNoAuto.right) > mRect.width) { needInnerReflow = PR_TRUE; } } nsRect prevInnerRect; mInnerTableFrame->GetRect(prevInnerRect); nsPoint captionOrigin; if (needInnerReflow) { nsSize innerSize; nsHTMLReflowMetrics innerMet(nsnull); OuterReflowChild(aPresContext, mInnerTableFrame, aOuterRS, innerMet, nsnull, innerSize, innerMargin, innerMarginNoAuto, innerPadding, eReflowReason_Resize, aStatus); GetInnerOrigin(aPresContext, captionSide, containSize, captionSize, captionMargin, innerSize, innerMargin, innerOrigin); rv = FinishReflowChild(mInnerTableFrame, aPresContext, nsnull, innerMet, innerOrigin.x, innerOrigin.y, 0); if (NS_FAILED(rv)) return rv; GetCaptionOrigin(aPresContext, captionSide, containSize, innerSize, innerMargin, captionSize, captionMargin, captionOrigin); } else { // reposition the inner frame if necessary and set the caption's origin nsSize innerSize = GetFrameSize(*mInnerTableFrame); GetMarginPadding(aPresContext, aOuterRS, mInnerTableFrame, innerMargin, innerMarginNoAuto, innerPadding); GetInnerOrigin(aPresContext, captionSide, containSize, captionSize, captionMargin, innerSize, innerMargin, innerOrigin); GetCaptionOrigin(aPresContext, captionSide, containSize, innerSize, innerMargin, captionSize, captionMargin, captionOrigin); MoveFrameTo(aPresContext, mInnerTableFrame, innerOrigin.x, innerOrigin.y); } rv = FinishReflowChild(mCaptionFrame, aPresContext, nsnull, captionMet, captionOrigin.x, captionOrigin.y, 0); UpdateReflowMetrics(captionSide, aDesiredSize, innerMargin, innerMarginNoAuto, innerPadding, captionMargin, captionMarginNoAuto); nsSize desSize(aDesiredSize.width, aDesiredSize.height); PRBool innerMoved = (innerOrigin.x != prevInnerRect.x) || (innerOrigin.y != prevInnerRect.y); InvalidateDamage(aPresContext, captionSide, desSize, innerMoved, PR_TRUE); return rv; } nsresult nsTableOuterFrame::IR_ReflowDirty(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus) { nsFrameState frameState; nsresult rv = NS_OK; PRBool sizeSet = PR_FALSE; // See if the caption frame is dirty. This would be because of a newly // inserted caption if (mCaptionFrame) { mCaptionFrame->GetFrameState(&frameState); if (frameState & NS_FRAME_IS_DIRTY) { rv = IR_CaptionInserted(aPresContext, aDesiredSize, aReflowState, aStatus); sizeSet = PR_TRUE; } } // See if the inner table frame is dirty mInnerTableFrame->GetFrameState(&frameState); if (frameState & NS_FRAME_IS_DIRTY) { rv = IR_InnerTableReflow(aPresContext, aDesiredSize, aReflowState, aStatus); sizeSet = PR_TRUE; } else if (!mCaptionFrame) { // The inner table isn't dirty so we don't need to reflow it, but make // sure it's placed correctly. It could be that we're dirty because the // caption was removed nsRect innerRect; mInnerTableFrame->GetRect(innerRect); nsSize innerSize(innerRect.width, innerRect.height); nsPoint innerOrigin; nsMargin innerMargin, innerMarginNoAuto, innerPadding; GetMarginPadding(aPresContext, aReflowState, mInnerTableFrame, innerMargin, innerMarginNoAuto, innerPadding); nsSize containSize = GetContainingBlockSize(aReflowState); GetInnerOrigin(aPresContext, NO_SIDE, containSize, nsSize(0,0), nsMargin(0,0,0,0), innerSize, innerMargin, innerOrigin); MoveFrameTo(aPresContext, mInnerTableFrame, innerOrigin.x, innerOrigin.y); aDesiredSize.width = innerRect.XMost() + innerMargin.right; aDesiredSize.height = innerRect.YMost() + innerMargin.bottom; sizeSet = PR_TRUE; // Repaint the inner's entire bounds if it moved if ((innerRect.x != innerOrigin.x) || (innerRect.y != innerOrigin.y)) { Invalidate(aPresContext, nsRect(0, 0, aDesiredSize.width, aDesiredSize.height)); } } if (!sizeSet) { // set our desired size to what it was before nsSize size = GetFrameSize(*this); aDesiredSize.width = size.width; aDesiredSize.height = size.height; } return rv; } // IR_TargetIsMe is free to foward the request to the inner table frame nsresult nsTableOuterFrame::IR_TargetIsMe(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus) { nsresult rv = NS_OK; nsIReflowCommand::ReflowType type; aReflowState.reflowCommand->GetType(type); nsIFrame* objectFrame; aReflowState.reflowCommand->GetChildFrame(objectFrame); switch (type) { case nsIReflowCommand::ReflowDirty: rv = IR_ReflowDirty(aPresContext, aDesiredSize, aReflowState, aStatus); break; case nsIReflowCommand::StyleChanged : case nsIReflowCommand::Timeout : rv = IR_InnerTableReflow(aPresContext, aDesiredSize, aReflowState, aStatus); break; case nsIReflowCommand::ContentChanged : NS_ASSERTION(PR_FALSE, "illegal reflow type: ContentChanged"); rv = NS_ERROR_ILLEGAL_VALUE; break; default: NS_NOTYETIMPLEMENTED("unexpected reflow command type"); rv = NS_ERROR_NOT_IMPLEMENTED; break; } return rv; } nsresult nsTableOuterFrame::IR_InnerTableReflow(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aOuterMet, const nsHTMLReflowState& aOuterRS, nsReflowStatus& aStatus) { aStatus = NS_FRAME_COMPLETE; PRUint8 captionSide = GetCaptionSide(); nsRect priorInnerRect; mInnerTableFrame->GetRect(priorInnerRect); nsSize innerSize; nsMargin innerMargin, innerMarginNoAuto, innerPadding; // pass along the reflow command to the inner table, requesting the same info in our flags nsHTMLReflowMetrics innerMet(aOuterMet.maxElementSize, aOuterMet.mFlags); // If the incremental reflow command is a StyleChanged reflow and // it's target is the current frame, then make sure we send // StyleChange reflow reasons down to the children so that they // don't over-optimize their reflow. nsReflowReason ReflowReason = eReflowReason_Incremental; nsIFrame* target = nsnull; aOuterRS.reflowCommand->GetTarget(target); if (this == target) { nsIReflowCommand::ReflowType type; aOuterRS.reflowCommand->GetType(type); if (nsIReflowCommand::StyleChanged == type) { ReflowReason = eReflowReason_StyleChange; } } nsresult rv = OuterReflowChild(aPresContext, mInnerTableFrame, aOuterRS, innerMet, nsnull, innerSize, innerMargin, innerMarginNoAuto, innerPadding, ReflowReason, aStatus); if (NS_FAILED(rv)) return rv; nsPoint innerOrigin(0,0); nsMargin captionMargin(0,0,0,0); nsMargin captionMarginNoAuto(0,0,0,0); nsSize captionSize(0,0); nsSize containSize = GetContainingBlockSize(aOuterRS); PRBool captionMoved = PR_FALSE; // if there is a caption and the width or height of the inner table changed // from a reflow, then reflow or move the caption as needed if (mCaptionFrame) { nsPoint captionOrigin; nsRect prevCaptionRect; mCaptionFrame->GetRect(prevCaptionRect); if (priorInnerRect.width != innerMet.width) { nsMargin ignorePadding; // XXX only need to reflow if the caption is auto width nsHTMLReflowMetrics captionMet(nsnull); // don't ask for MES, it hasn't changed nscoord availWidth = GetCaptionAvailWidth(aPresContext, mCaptionFrame, aOuterRS, &innerSize.width, &innerMarginNoAuto); nsReflowStatus capStatus; // don't let the caption cause incomplete if (ReflowReason == eReflowReason_Incremental) { ReflowReason = eReflowReason_Resize; } rv = OuterReflowChild(aPresContext, mCaptionFrame, aOuterRS, captionMet, &availWidth, captionSize, captionMargin, captionMarginNoAuto, ignorePadding, ReflowReason, capStatus); if (NS_FAILED(rv)) return rv; GetCaptionOrigin(aPresContext, captionSide, containSize, innerSize, innerMargin, captionSize, captionMargin, captionOrigin); FinishReflowChild(mCaptionFrame, aPresContext, nsnull, captionMet, captionOrigin.x, captionOrigin.y, 0); GetInnerOrigin(aPresContext, captionSide, containSize, captionSize, captionMargin, innerSize, innerMargin, innerOrigin); } else { // reposition the caption frame if necessary and set the inner's origin captionSize = GetFrameSize(*mCaptionFrame); nsMargin captionPadding; GetMarginPadding(aPresContext, aOuterRS, mCaptionFrame, captionMargin, captionMarginNoAuto, captionPadding); GetCaptionOrigin(aPresContext, captionSide, containSize, innerSize, innerMargin, captionSize, captionMargin, captionOrigin); GetInnerOrigin(aPresContext, captionSide, containSize, captionSize, captionMargin, innerSize, innerMargin, innerOrigin); MoveFrameTo(aPresContext, mCaptionFrame, captionOrigin.x, captionOrigin.y); } if ((captionOrigin.x != prevCaptionRect.x) || (captionOrigin.x != prevCaptionRect.x)) { captionMoved = PR_TRUE; } if ((captionOrigin.x != prevCaptionRect.x) || (captionOrigin.x != prevCaptionRect.x)) { captionMoved = PR_TRUE; } } else { GetInnerOrigin(aPresContext, captionSide, containSize, captionSize, captionMargin, innerSize, innerMargin, innerOrigin); } FinishReflowChild(mInnerTableFrame, aPresContext, nsnull, innerMet, innerOrigin.x, innerOrigin.y, 0); UpdateReflowMetrics(captionSide, aOuterMet, innerMargin, innerMarginNoAuto, innerPadding, captionMargin, captionMarginNoAuto); nsSize desSize(aOuterMet.width, aOuterMet.height); InvalidateDamage(aPresContext, captionSide, desSize, (innerSize.width != priorInnerRect.width), captionMoved); return rv; } /* the only difference between an insert and a replace is a replace checks the old maxElementSize and reflows the table only if it has changed */ nsresult nsTableOuterFrame::IR_CaptionInserted(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aOuterRS, nsReflowStatus& aStatus) { PRUint8 captionSide = GetCaptionSide(); aStatus = NS_FRAME_COMPLETE; // reflow the caption frame, getting it's MES nsSize captionSize; nsMargin captionMargin, captionMarginNoAuto, ignorePadding; nsSize maxElementSize(0,0); nsHTMLReflowMetrics captionMet(&maxElementSize); // reflow the caption nscoord availWidth = GetCaptionAvailWidth(aPresContext, mCaptionFrame, aOuterRS); nsReflowStatus capStatus; // don't let the caption cause incomplete nsresult rv = OuterReflowChild(aPresContext, mCaptionFrame, aOuterRS, captionMet, &availWidth, captionSize, captionMargin, captionMarginNoAuto, ignorePadding, eReflowReason_Initial, capStatus); if (NS_FAILED(rv)) return rv; mMinCaptionWidth = maxElementSize.width; nsPoint captionOrigin(0,0); nsMargin innerMargin, innerMarginNoAuto, innerPadding; nsPoint innerOrigin; nsSize containSize = GetContainingBlockSize(aOuterRS); nsRect prevInnerRect; mInnerTableFrame->GetRect(prevInnerRect); // XXX: caption align = left|right ignored here! // if the caption's MES + margins > outer width, reflow the inner table if (mMinCaptionWidth + captionMarginNoAuto.left + captionMarginNoAuto.right > mRect.width) { nsHTMLReflowMetrics innerMet(aDesiredSize.maxElementSize); nsSize innerSize; rv = OuterReflowChild(aPresContext, mInnerTableFrame, aOuterRS, innerMet, nsnull, innerSize, innerMargin, innerMarginNoAuto, innerPadding, eReflowReason_Resize, aStatus); if (NS_FAILED(rv)) return rv; GetInnerOrigin(aPresContext, captionSide, containSize, captionSize, captionMargin, innerSize, innerMargin, innerOrigin); rv = FinishReflowChild(mInnerTableFrame, aPresContext, nsnull, innerMet, innerOrigin.x, innerOrigin.y, 0); if (NS_FAILED(rv)) return rv; GetCaptionOrigin(aPresContext, captionSide, containSize, innerSize, innerMargin, captionSize, captionMargin, captionOrigin); } else { // reposition the inner frame if necessary and set the caption's origin nsSize innerSize = GetFrameSize(*mInnerTableFrame); GetMarginPadding(aPresContext, aOuterRS, mInnerTableFrame, innerMargin, innerMarginNoAuto, innerPadding); GetInnerOrigin(aPresContext, captionSide, containSize, captionSize, captionMargin, innerSize, innerMargin, innerOrigin); GetCaptionOrigin(aPresContext, captionSide, containSize, innerSize, innerMargin, captionSize, captionMargin, captionOrigin); MoveFrameTo(aPresContext, mInnerTableFrame, innerOrigin.x, innerOrigin.y); } rv = FinishReflowChild(mCaptionFrame, aPresContext, nsnull, captionMet, captionOrigin.x, captionOrigin.y, 0); UpdateReflowMetrics(captionSide, aDesiredSize, innerMargin, innerMarginNoAuto, innerPadding, captionMargin, captionMarginNoAuto); nsSize desSize(aDesiredSize.width, aDesiredSize.height); PRBool innerMoved = (innerOrigin.x != prevInnerRect.x) || (innerOrigin.y != prevInnerRect.y); InvalidateDamage(aPresContext, captionSide, desSize, innerMoved, PR_TRUE); return rv; } PRBool nsTableOuterFrame::IR_CaptionChangedAxis(const nsStyleTable* aOldStyle, const nsStyleTable* aNewStyle) const { PRBool result = PR_FALSE; //XXX: write me to support left|right captions! return result; } static PRBool IsPctHeight(nsIFrame* aFrame) { if (aFrame) { nsCOMPtr styleContext; aFrame->GetStyleContext(getter_AddRefs(styleContext)); nsStylePosition* position = (nsStylePosition*)styleContext->GetStyleData(eStyleStruct_Position); if (eStyleUnit_Percent == position->mHeight.GetUnit()) { float percent = position->mHeight.GetPercentValue(); if (percent > 0.0f) { return PR_TRUE; } } } return PR_FALSE; } /** * Reflow is a multi-step process. * 1. First we reflow the caption frame and get its maximum element size. We * do this once during our initial reflow and whenever the caption changes * incrementally * 2. Next we reflow the inner table. This gives us the actual table width. * The table must be at least as wide as the caption maximum element size * 3. Now that we have the table width we reflow the caption and gets its * desired height * 4. Then we place the caption and the inner table * * If the table height is constrained, e.g. page mode, then it's possible the * inner table no longer fits and has to be reflowed again this time with s * smaller available height */ NS_METHOD nsTableOuterFrame::Reflow(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aOuterRS, nsReflowStatus& aStatus) { DO_GLOBAL_REFLOW_COUNT("nsTableOuterFrame", aOuterRS.reason); DISPLAY_REFLOW(aPresContext, this, aOuterRS, aDesiredSize, aStatus); #if defined DEBUG_TABLE_REFLOW_TIMING nsTableFrame::DebugReflow(this, (nsHTMLReflowState&)aOuterRS); #endif nsresult rv = NS_OK; PRUint8 captionSide = GetCaptionSide(); // Initialize out parameters aDesiredSize.width = aDesiredSize.height = 0; if (nsnull != aDesiredSize.maxElementSize) { aDesiredSize.maxElementSize->width = 0; aDesiredSize.maxElementSize->height = 0; } aStatus = NS_FRAME_COMPLETE; PRBool isPaginated; aPresContext->IsPaginated(&isPaginated); PRBool needUpdateMetrics = PR_TRUE; if ((eReflowReason_Resize == aOuterRS.reason) && (aOuterRS.availableWidth == mPriorAvailWidth) && !isPaginated && !::IsPctHeight(mInnerTableFrame)) { // don't do much if we are resize reflowed exactly like last time aDesiredSize.width = mRect.width; aDesiredSize.height = mRect.height; // We know our view (if we have one) has been positioned // correctly, but it's up to us to make sure that our child views // are correctly positioned, too. nsContainerFrame::PositionChildViews(aPresContext, this); } else if (eReflowReason_Incremental == aOuterRS.reason) { rv = IncrementalReflow(aPresContext, aDesiredSize, aOuterRS, aStatus); } else { if (eReflowReason_Initial == aOuterRS.reason) { // Set up our kids. They're already present, on an overflow list, // or there are none so we'll create them now MoveOverflowToChildList(aPresContext); // Lay out the caption and get its maximum element size if (nsnull != mCaptionFrame) { nsSize maxElementSize; nsHTMLReflowMetrics captionMet(&maxElementSize); captionMet.maxElementSize = &maxElementSize; nsHTMLReflowState captionReflowState(aPresContext, aOuterRS, mCaptionFrame, nsSize(NS_UNCONSTRAINEDSIZE, NS_UNCONSTRAINEDSIZE), eReflowReason_Initial); mCaptionFrame->WillReflow(aPresContext); rv = mCaptionFrame->Reflow(aPresContext, captionMet, captionReflowState, aStatus); mCaptionFrame->DidReflow(aPresContext, nsnull, NS_FRAME_REFLOW_FINISHED); mMinCaptionWidth = maxElementSize.width; } } // At this point, we must have an inner table frame, and we might have a caption NS_ASSERTION(mFrames.NotEmpty() && mInnerTableFrame, "incomplete children"); nsSize innerSize; nsMargin innerMargin, innerMarginNoAuto, innerPadding; // First reflow the inner table nsHTMLReflowMetrics innerMet(aDesiredSize.maxElementSize); rv = OuterReflowChild(aPresContext, mInnerTableFrame, aOuterRS, innerMet, nsnull, innerSize, innerMargin, innerMarginNoAuto, innerPadding, aOuterRS.reason, aStatus); if (NS_FAILED(rv)) return rv; nsPoint innerOrigin(0,0); nsMargin captionMargin(0,0,0,0), captionMarginNoAuto(0,0,0,0), ignorePadding; nsSize captionSize(0,0); nsSize containSize = GetContainingBlockSize(aOuterRS); // Now that we know the table width we can reflow the caption, and // place the caption and the inner table if (mCaptionFrame) { // reflow the caption nscoord availWidth = GetCaptionAvailWidth(aPresContext, mCaptionFrame, aOuterRS, &innerSize.width, &innerMarginNoAuto); nsHTMLReflowMetrics captionMet(nsnull); nsReflowStatus capStatus; // don't let the caption cause incomplete rv = OuterReflowChild(aPresContext, mCaptionFrame, aOuterRS, captionMet, &availWidth, captionSize, captionMargin, captionMarginNoAuto, ignorePadding, aOuterRS.reason, capStatus); if (NS_FAILED(rv)) return rv; nsPoint captionOrigin; GetCaptionOrigin(aPresContext, captionSide, containSize, innerSize, innerMargin, captionSize, captionMargin, captionOrigin); FinishReflowChild(mCaptionFrame, aPresContext, nsnull, captionMet, captionOrigin.x, captionOrigin.y, 0); GetInnerOrigin(aPresContext, captionSide, containSize, captionSize, captionMargin, innerSize, innerMargin, innerOrigin); // XXX If the height is constrained then we need to check whether the inner table still fits... } else { GetInnerOrigin(aPresContext, captionSide, containSize, captionSize, captionMargin, innerSize, innerMargin, innerOrigin); } FinishReflowChild(mInnerTableFrame, aPresContext, nsnull, innerMet, innerOrigin.x, innerOrigin.y, 0); UpdateReflowMetrics(captionSide, aDesiredSize, innerMargin, innerMarginNoAuto, innerPadding, captionMargin, captionMarginNoAuto); needUpdateMetrics = PR_FALSE; } // Return our desired rect aDesiredSize.ascent = aDesiredSize.height; aDesiredSize.descent = 0; // compute max element size and maximum width if it hasn't already been if (needUpdateMetrics) { nsMargin innerMargin, innerMarginNoAuto, capMargin(0,0,0,0), capMarginNoAuto(0,0,0,0), innerPadding, capPadding(0,0,0,0); GetMarginPadding(aPresContext, aOuterRS, mInnerTableFrame, innerMargin, innerMarginNoAuto, innerPadding); if (mCaptionFrame) { GetMarginPadding(aPresContext, aOuterRS, mCaptionFrame, capMargin, capMarginNoAuto, capPadding); } UpdateReflowMetrics(captionSide, aDesiredSize, innerMargin, innerMarginNoAuto, innerPadding, capMargin, capMarginNoAuto); } #ifdef CHECK_THIS_AND_REMOVE // See if we are supposed to compute our maximum width if (aDesiredSize.mFlags & NS_REFLOW_CALC_MAX_WIDTH) { // XXX this needs to consider the possibility of a caption being wider // than the inner table, but this is the safest way to fix bug 55545 if (mInnerTableFrame) { aDesiredSize.mMaximumWidth = ((nsTableFrame*)mInnerTableFrame)->GetPreferredWidth(); } } #endif mPriorAvailWidth = aOuterRS.availableWidth; #if defined DEBUG_TABLE_REFLOW_TIMING nsTableFrame::DebugReflow(this, (nsHTMLReflowState&)aOuterRS, &aDesiredSize, aStatus); #endif return rv; } NS_METHOD nsTableOuterFrame::VerifyTree() const { return NS_OK; } /** * Remove and delete aChild's next-in-flow(s). Updates the sibling and flow * pointers. * * Updates the child count and content offsets of all containers that are * affected * * Overloaded here because nsContainerFrame makes assumptions about pseudo-frames * that are not true for tables. * * @param aChild child this child's next-in-flow * @return PR_TRUE if successful and PR_FALSE otherwise */ void nsTableOuterFrame::DeleteChildsNextInFlow(nsIPresContext* aPresContext, nsIFrame* aChild) { if (!aChild) return; NS_PRECONDITION(mFrames.ContainsFrame(aChild), "bad geometric parent"); nsIFrame* nextInFlow; aChild->GetNextInFlow(&nextInFlow); if (!nextInFlow) { NS_ASSERTION(PR_FALSE, "null next-in-flow"); return; } nsTableOuterFrame* parent; nextInFlow->GetParent((nsIFrame**)&parent); if (!parent) { NS_ASSERTION(PR_FALSE, "null parent"); return; } // If the next-in-flow has a next-in-flow then delete it too (and // delete it first). nsIFrame* nextNextInFlow; nextInFlow->GetNextInFlow(&nextNextInFlow); if (nextNextInFlow) { parent->DeleteChildsNextInFlow(aPresContext, nextInFlow); } // Disconnect the next-in-flow from the flow list nsSplittableFrame::BreakFromPrevFlow(nextInFlow); // Take the next-in-flow out of the parent's child list if (parent->mFrames.FirstChild() == nextInFlow) { nsIFrame* nextSibling; nextInFlow->GetNextSibling(&nextSibling); parent->mFrames.SetFrames(nextSibling); } else { nsIFrame* nextSibling; // Because the next-in-flow is not the first child of the parent // we know that it shares a parent with aChild. Therefore, we need // to capture the next-in-flow's next sibling (in case the // next-in-flow is the last next-in-flow for aChild AND the // next-in-flow is not the last child in parent) aChild->GetNextSibling(&nextSibling); NS_ASSERTION(nextSibling == nextInFlow, "unexpected sibling"); nextInFlow->GetNextSibling(&nextSibling); aChild->SetNextSibling(nextSibling); } // Delete the next-in-flow frame and adjust it's parent's child count nextInFlow->Destroy(aPresContext); #ifdef NS_DEBUG aChild->GetNextInFlow(&nextInFlow); NS_POSTCONDITION(nsnull == nextInFlow, "non null next-in-flow"); #endif } NS_IMETHODIMP nsTableOuterFrame::GetFrameType(nsIAtom** aType) const { NS_PRECONDITION(nsnull != aType, "null OUT parameter pointer"); *aType = nsLayoutAtoms::tableOuterFrame; NS_ADDREF(*aType); return NS_OK; } /* ----- global methods ----- */ /*------------------ nsITableLayout methods ------------------------------*/ NS_IMETHODIMP nsTableOuterFrame::GetCellDataAt(PRInt32 aRowIndex, PRInt32 aColIndex, nsIDOMElement* &aCell, //out params PRInt32& aStartRowIndex, PRInt32& aStartColIndex, PRInt32& aRowSpan, PRInt32& aColSpan, PRInt32& aActualRowSpan, PRInt32& aActualColSpan, PRBool& aIsSelected) { if (!mInnerTableFrame) { return NS_ERROR_NOT_INITIALIZED; } nsITableLayout *inner; nsresult result = mInnerTableFrame->QueryInterface(NS_GET_IID(nsITableLayout), (void **)&inner); if (NS_SUCCEEDED(result) && inner) { return (inner->GetCellDataAt(aRowIndex, aColIndex, aCell, aStartRowIndex, aStartColIndex, aRowSpan, aColSpan, aActualRowSpan, aActualColSpan, aIsSelected)); } return NS_ERROR_NULL_POINTER; } NS_IMETHODIMP nsTableOuterFrame::GetTableSize(PRInt32& aRowCount, PRInt32& aColCount) { if (!mInnerTableFrame) { return NS_ERROR_NOT_INITIALIZED; } nsITableLayout *inner; nsresult result = mInnerTableFrame->QueryInterface(NS_GET_IID(nsITableLayout), (void **)&inner); if (NS_SUCCEEDED(result) && inner) { return (inner->GetTableSize(aRowCount, aColCount)); } return NS_ERROR_NULL_POINTER; } /*---------------- end of nsITableLayout implementation ------------------*/ nsresult NS_NewTableOuterFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame) { NS_PRECONDITION(aNewFrame, "null OUT ptr"); if (nsnull == aNewFrame) { return NS_ERROR_NULL_POINTER; } nsTableOuterFrame* it = new (aPresShell) nsTableOuterFrame; if (nsnull == it) { return NS_ERROR_OUT_OF_MEMORY; } *aNewFrame = it; return NS_OK; } #ifdef DEBUG NS_IMETHODIMP nsTableOuterFrame::GetFrameName(nsAString& aResult) const { return MakeFrameName(NS_LITERAL_STRING("TableOuter"), aResult); } NS_IMETHODIMP nsTableOuterFrame::SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const { if (!aResult) { return NS_ERROR_NULL_POINTER; } PRUint32 sum = sizeof(*this); *aResult = sum; return NS_OK; } #endif