1998-12-18 20:54:54 +03:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsAreaFrame.h"
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#include "nsIContent.h"
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#include "nsIHTMLContent.h"
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#include "nsIReflowCommand.h"
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#include "nsIStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsIPresContext.h"
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#include "nsIPresShell.h"
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#include "nsIViewManager.h"
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#include "nsIDeviceContext.h"
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#include "nsSpaceManager.h"
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#include "nsHTMLAtoms.h"
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#include "nsIView.h"
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#include "nsViewsCID.h"
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#include "nsHTMLIIDs.h"
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#include "nsIWebShell.h"
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#include "nsHTMLValue.h"
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#include "nsHTMLParts.h"
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#include "nsLayoutAtoms.h"
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static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
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1999-01-18 20:27:27 +03:00
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static NS_DEFINE_IID(kAreaFrameIID, NS_IAREAFRAME_IID);
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1998-12-18 20:54:54 +03:00
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nsresult
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NS_NewAreaFrame(nsIFrame*& aResult, PRUint32 aFlags)
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{
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nsAreaFrame* it = new nsAreaFrame;
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if (nsnull == it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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it->SetFlags(aFlags);
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aResult = it;
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return NS_OK;
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}
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nsAreaFrame::nsAreaFrame()
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{
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1999-01-18 20:27:27 +03:00
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mState &= ~NS_FRAME_SYNC_FRAME_AND_VIEW; // let us handle it
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1998-12-18 20:54:54 +03:00
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}
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nsAreaFrame::~nsAreaFrame()
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{
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1999-01-17 01:18:08 +03:00
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NS_IF_RELEASE(mSpaceManager);
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1998-12-18 20:54:54 +03:00
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}
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1999-01-18 20:27:27 +03:00
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/////////////////////////////////////////////////////////////////////////////
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// nsISupports
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NS_IMETHODIMP
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nsAreaFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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if (aIID.Equals(kAreaFrameIID)) {
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nsIAreaFrame* tmp = (nsIAreaFrame*)this;
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*aInstancePtr = (void*)tmp;
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return NS_OK;
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}
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return nsBlockFrame::QueryInterface(aIID, aInstancePtr);
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}
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1998-12-18 20:54:54 +03:00
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/////////////////////////////////////////////////////////////////////////////
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// nsIFrame
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1999-01-17 01:18:08 +03:00
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NS_IMETHODIMP
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nsAreaFrame::Init(nsIPresContext& aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aContext)
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{
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// Create a space manager if requested
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if (0 == (mFlags & NS_AREA_NO_SPACE_MGR)) {
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mSpaceManager = new nsSpaceManager(this);
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NS_ADDREF(mSpaceManager);
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}
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return nsBlockFrame::Init(aPresContext, aContent, aParent, aContext);
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}
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1998-12-18 20:54:54 +03:00
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NS_IMETHODIMP
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nsAreaFrame::DeleteFrame(nsIPresContext& aPresContext)
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{
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1999-01-16 01:53:39 +03:00
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mAbsoluteFrames.DeleteFrames(aPresContext);
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1998-12-18 20:54:54 +03:00
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return nsBlockFrame::DeleteFrame(aPresContext);
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}
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1998-12-29 06:38:16 +03:00
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NS_IMETHODIMP
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nsAreaFrame::SetInitialChildList(nsIPresContext& aPresContext,
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nsIAtom* aListName,
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nsIFrame* aChildList)
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{
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nsresult rv;
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if (nsLayoutAtoms::absoluteList == aListName) {
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1999-01-16 01:53:39 +03:00
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mAbsoluteFrames.SetFrames(aChildList);
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1998-12-29 06:38:16 +03:00
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rv = NS_OK;
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} else {
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rv = nsBlockFrame::SetInitialChildList(aPresContext, aListName, aChildList);
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}
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return rv;
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}
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1998-12-18 20:54:54 +03:00
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NS_IMETHODIMP
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nsAreaFrame::GetAdditionalChildListName(PRInt32 aIndex,
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nsIAtom*& aListName) const
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{
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if (aIndex <= NS_BLOCK_FRAME_LAST_LIST_INDEX) {
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return nsBlockFrame::GetAdditionalChildListName(aIndex, aListName);
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}
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nsIAtom* atom = nsnull;
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if (NS_AREA_FRAME_ABSOLUTE_LIST_INDEX == aIndex) {
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atom = nsLayoutAtoms::absoluteList;
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NS_ADDREF(atom);
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}
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aListName = atom;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsAreaFrame::FirstChild(nsIAtom* aListName, nsIFrame*& aFirstChild) const
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{
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if (aListName == nsLayoutAtoms::absoluteList) {
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1999-01-16 01:53:39 +03:00
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aFirstChild = mAbsoluteFrames.FirstChild();
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1998-12-18 20:54:54 +03:00
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return NS_OK;
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}
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return nsBlockFrame::FirstChild(aListName, aFirstChild);
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}
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#ifdef NS_DEBUG
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void
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nsAreaFrame::BandData::ComputeAvailSpaceRect()
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{
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nsBandTrapezoid* trapezoid = data;
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if (count > 1) {
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// If there's more than one trapezoid that means there are floaters
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PRInt32 i;
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// Stop when we get to space occupied by a right floater, or when we've
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// looked at every trapezoid and none are right floaters
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for (i = 0; i < count; i++) {
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nsBandTrapezoid* trapezoid = &data[i];
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if (trapezoid->state != nsBandTrapezoid::Available) {
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const nsStyleDisplay* display;
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if (nsBandTrapezoid::OccupiedMultiple == trapezoid->state) {
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PRInt32 j, numFrames = trapezoid->frames->Count();
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NS_ASSERTION(numFrames > 0, "bad trapezoid frame list");
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for (j = 0; j < numFrames; j++) {
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nsIFrame* f = (nsIFrame*)trapezoid->frames->ElementAt(j);
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f->GetStyleData(eStyleStruct_Display,
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(const nsStyleStruct*&)display);
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if (NS_STYLE_FLOAT_RIGHT == display->mFloats) {
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goto foundRightFloater;
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}
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}
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} else {
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trapezoid->frame->GetStyleData(eStyleStruct_Display,
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(const nsStyleStruct*&)display);
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if (NS_STYLE_FLOAT_RIGHT == display->mFloats) {
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break;
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}
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}
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}
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}
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foundRightFloater:
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if (i > 0) {
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trapezoid = &data[i - 1];
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}
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}
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if (nsBandTrapezoid::Available == trapezoid->state) {
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// The trapezoid is available
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trapezoid->GetRect(availSpace);
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} else {
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const nsStyleDisplay* display;
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// The trapezoid is occupied. That means there's no available space
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trapezoid->GetRect(availSpace);
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// XXX Better handle the case of multiple frames
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if (nsBandTrapezoid::Occupied == trapezoid->state) {
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trapezoid->frame->GetStyleData(eStyleStruct_Display,
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(const nsStyleStruct*&)display);
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if (NS_STYLE_FLOAT_LEFT == display->mFloats) {
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availSpace.x = availSpace.XMost();
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}
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}
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availSpace.width = 0;
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}
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}
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NS_IMETHODIMP
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nsAreaFrame::Paint(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer)
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{
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// Note: all absolutely positioned elements have views so we don't
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// need to worry about painting them
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nsresult rv = nsBlockFrame::Paint(aPresContext, aRenderingContext,
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aDirtyRect, aWhichLayer);
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1999-01-17 01:18:08 +03:00
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if ((eFramePaintLayer_Overlay == aWhichLayer) && nsIFrame::GetShowFrameBorders()) {
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1998-12-18 20:54:54 +03:00
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// Render the bands in the spacemanager
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nsISpaceManager* sm = mSpaceManager;
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1999-01-17 01:18:08 +03:00
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if (nsnull != sm) {
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BandData band;
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nscoord y = 0;
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while (y < mRect.height) {
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sm->GetBandData(y, nsSize(mRect.width, mRect.height - y), band);
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band.ComputeAvailSpaceRect();
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// Render a box and a diagonal line through the band
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aRenderingContext.SetColor(NS_RGB(0,255,0));
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aRenderingContext.DrawRect(0, band.availSpace.y,
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mRect.width, band.availSpace.height);
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aRenderingContext.DrawLine(0, band.availSpace.y,
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mRect.width, band.availSpace.YMost());
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// Render boxes and opposite diagonal lines around the
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// unavailable parts of the band.
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PRInt32 i;
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for (i = 0; i < band.count; i++) {
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nsBandTrapezoid* trapezoid = &band.data[i];
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if (nsBandTrapezoid::Available != trapezoid->state) {
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nsRect r;
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trapezoid->GetRect(r);
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if (nsBandTrapezoid::OccupiedMultiple == trapezoid->state) {
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aRenderingContext.SetColor(NS_RGB(0,255,128));
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}
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else {
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aRenderingContext.SetColor(NS_RGB(128,255,0));
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}
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aRenderingContext.DrawRect(r);
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aRenderingContext.DrawLine(r.x, r.YMost(), r.XMost(), r.y);
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1998-12-18 20:54:54 +03:00
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}
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}
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1999-01-17 01:18:08 +03:00
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y = band.availSpace.YMost();
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1998-12-18 20:54:54 +03:00
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}
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}
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}
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return rv;
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}
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#endif
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1999-01-18 20:27:27 +03:00
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// Return the x-most and y-most for the child absolutely positioned
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// elements
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NS_IMETHODIMP
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nsAreaFrame::GetPositionedInfo(nscoord& aXMost, nscoord& aYMost) const
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{
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aXMost = aYMost = 0;
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for (nsIFrame* f = mAbsoluteFrames.FirstChild(); nsnull != f; f->GetNextSibling(f)) {
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// Get the frame's x-most and y-most. This is for its flowed content only
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nsRect rect;
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f->GetRect(rect);
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if (rect.XMost() > aXMost) {
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aXMost = rect.XMost();
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}
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if (rect.YMost() > aYMost) {
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aYMost = rect.YMost();
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}
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// If the child frame is also an area frame, then take into account its child
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// absolutely positioned elements
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nsIAreaFrame* areaFrame;
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if (NS_SUCCEEDED(f->QueryInterface(kAreaFrameIID, (void**)&areaFrame))) {
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nscoord xMost, yMost;
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areaFrame->GetPositionedInfo(xMost, yMost);
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// Convert to our coordinate space
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xMost += rect.x;
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yMost += rect.y;
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if (xMost > aXMost) {
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aXMost = xMost;
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}
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if (yMost > aYMost) {
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aYMost = yMost;
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}
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}
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}
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return NS_OK;
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}
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// XXX Temporary until the view code allows positioned child views to extend
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// outside their parent without being clipped...
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NS_IMETHODIMP
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nsAreaFrame::DidReflow(nsIPresContext& aPresContext,
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nsDidReflowStatus aStatus)
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{
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nsresult rv = nsBlockFrame::DidReflow(aPresContext, aStatus);
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if (NS_FRAME_REFLOW_FINISHED == aStatus) {
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nsIView* view;
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GetView(view);
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// Size and position the view if requested
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if (nsnull != view) {
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// Position and size view relative to its parent, not relative to our
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// parent frame (our parent frame may not have a view).
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nsIView* parentWithView;
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nsPoint origin;
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GetOffsetFromView(origin, parentWithView);
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nsIViewManager *vm;
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view->GetViewManager(vm);
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// Take into account any absolutely positioned children
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nscoord xMost, yMost;
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GetPositionedInfo(xMost, yMost);
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vm->ResizeView(view, PR_MAX(mRect.width, xMost), PR_MAX(mRect.height, yMost));
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vm->MoveViewTo(view, origin.x, origin.y);
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NS_RELEASE(vm);
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}
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}
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return rv;
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}
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1998-12-18 20:54:54 +03:00
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NS_IMETHODIMP
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nsAreaFrame::Reflow(nsIPresContext& aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
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("enter nsAreaFrame::Reflow: maxSize=%d,%d reason=%d",
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1999-01-06 02:31:18 +03:00
|
|
|
aReflowState.availableWidth,
|
|
|
|
aReflowState.availableHeight,
|
1998-12-18 20:54:54 +03:00
|
|
|
aReflowState.reason));
|
|
|
|
|
1998-12-29 06:38:16 +03:00
|
|
|
nsresult rv = NS_OK;
|
|
|
|
|
1998-12-18 20:54:54 +03:00
|
|
|
// Make a copy of the reflow state so we can set the space manager
|
|
|
|
nsHTMLReflowState reflowState(aReflowState);
|
|
|
|
|
1999-01-17 01:18:08 +03:00
|
|
|
if (nsnull != mSpaceManager) {
|
|
|
|
reflowState.spaceManager = mSpaceManager;
|
|
|
|
|
|
|
|
// Clear the spacemanager's regions.
|
|
|
|
mSpaceManager->ClearRegions();
|
|
|
|
}
|
1998-12-18 20:54:54 +03:00
|
|
|
|
1998-12-29 06:38:16 +03:00
|
|
|
// See if the reflow command is for an absolutely positioned frame
|
|
|
|
PRBool wasHandled = PR_FALSE;
|
|
|
|
if (eReflowReason_Incremental == aReflowState.reason) {
|
|
|
|
nsIFrame* targetFrame;
|
|
|
|
|
|
|
|
aReflowState.reflowCommand->GetTarget(targetFrame);
|
|
|
|
if (this == targetFrame) {
|
|
|
|
nsIAtom* listName;
|
1999-01-07 08:46:26 +03:00
|
|
|
PRBool isAbsoluteChild;
|
1998-12-29 06:38:16 +03:00
|
|
|
|
1999-01-07 08:46:26 +03:00
|
|
|
// See if it's for an absolutely positioned child frame
|
1998-12-29 06:38:16 +03:00
|
|
|
aReflowState.reflowCommand->GetChildListName(listName);
|
1999-01-07 08:46:26 +03:00
|
|
|
isAbsoluteChild = nsLayoutAtoms::absoluteList == listName;
|
|
|
|
NS_IF_RELEASE(listName);
|
|
|
|
|
|
|
|
if (isAbsoluteChild) {
|
1998-12-29 06:38:16 +03:00
|
|
|
nsIReflowCommand::ReflowType type;
|
|
|
|
|
|
|
|
aReflowState.reflowCommand->GetType(type);
|
|
|
|
|
1999-01-07 08:46:26 +03:00
|
|
|
// Handle each specific type
|
|
|
|
if (nsIReflowCommand::FrameAppended == type) {
|
|
|
|
// Add the frames to our list of absolutely position frames
|
|
|
|
nsIFrame* childFrames;
|
|
|
|
aReflowState.reflowCommand->GetChildFrame(childFrames);
|
|
|
|
NS_ASSERTION(nsnull != childFrames, "null child list");
|
1999-01-18 22:30:42 +03:00
|
|
|
mAbsoluteFrames.AppendFrames(nsnull, childFrames);
|
1999-01-07 08:46:26 +03:00
|
|
|
|
|
|
|
// Indicate we handled the reflow command
|
|
|
|
wasHandled = PR_TRUE;
|
|
|
|
|
|
|
|
} else if (nsIReflowCommand::FrameRemoved == type) {
|
|
|
|
// Get the new frame
|
|
|
|
nsIFrame* childFrame;
|
|
|
|
aReflowState.reflowCommand->GetChildFrame(childFrame);
|
|
|
|
|
1999-01-16 01:53:39 +03:00
|
|
|
PRBool zap = mAbsoluteFrames.DeleteFrame(aPresContext, childFrame);
|
|
|
|
NS_ASSERTION(zap, "didn't find frame");
|
1999-01-07 08:46:26 +03:00
|
|
|
|
|
|
|
// XXX We don't need to reflow all the absolutely positioned
|
|
|
|
// frames. Compute the desired size and exit...
|
|
|
|
wasHandled = PR_TRUE;
|
|
|
|
|
|
|
|
} else if (nsIReflowCommand::FrameInserted == type) {
|
|
|
|
// Get the new frame
|
|
|
|
nsIFrame* childFrame;
|
|
|
|
aReflowState.reflowCommand->GetChildFrame(childFrame);
|
1998-12-29 06:38:16 +03:00
|
|
|
|
1999-01-07 08:46:26 +03:00
|
|
|
// Get the previous sibling
|
|
|
|
nsIFrame* prevSibling;
|
|
|
|
aReflowState.reflowCommand->GetPrevSiblingFrame(prevSibling);
|
|
|
|
|
|
|
|
// Insert the frame
|
1999-01-16 01:53:39 +03:00
|
|
|
mAbsoluteFrames.InsertFrame(nsnull, prevSibling, childFrame);
|
1999-01-07 08:46:26 +03:00
|
|
|
wasHandled = PR_TRUE;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
NS_ASSERTION(PR_FALSE, "unexpected reflow type");
|
|
|
|
}
|
1998-12-29 06:38:16 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!wasHandled) {
|
|
|
|
// XXX We need to peek at incremental reflow commands and see if the next
|
|
|
|
// frame is one of the absolutely positioned frames...
|
|
|
|
rv = nsBlockFrame::Reflow(aPresContext, aDesiredSize, reflowState, aStatus);
|
|
|
|
}
|
1998-12-18 20:54:54 +03:00
|
|
|
|
|
|
|
// Reflow any absolutely positioned frames that need reflowing
|
|
|
|
// XXX We shouldn't really be doing this for all incremental reflow commands
|
|
|
|
ReflowAbsoluteItems(aPresContext, reflowState);
|
|
|
|
|
|
|
|
// Compute our desired size. Take into account any floaters when computing the
|
|
|
|
// height
|
1999-01-17 01:18:08 +03:00
|
|
|
if (nsnull != mSpaceManager) {
|
|
|
|
nscoord floaterYMost;
|
|
|
|
mSpaceManager->YMost(floaterYMost);
|
|
|
|
if (floaterYMost > 0) {
|
|
|
|
// What we need to check for is if the bottom most floater extends below
|
|
|
|
// the content area of the desired size
|
|
|
|
nsMargin borderPadding;
|
|
|
|
nscoord contentYMost;
|
|
|
|
|
|
|
|
nsHTMLReflowState::ComputeBorderPaddingFor(this, aReflowState.parentReflowState,
|
|
|
|
borderPadding);
|
|
|
|
contentYMost = aDesiredSize.height - borderPadding.bottom;
|
|
|
|
|
|
|
|
if (floaterYMost > contentYMost) {
|
|
|
|
aDesiredSize.height += floaterYMost - contentYMost;
|
|
|
|
}
|
1998-12-18 20:54:54 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// XXX This code is really temporary; the lower level frame
|
|
|
|
// classes need to contribute to the area that needs damage
|
|
|
|
// repair. This class should only worry about damage repairing
|
|
|
|
// it's border+padding area.
|
|
|
|
nsRect damageArea(0, 0, 0, 0);
|
|
|
|
|
|
|
|
// Decide how much to repaint based on the reflow type.
|
|
|
|
// Note: we don't have to handle the initial reflow case and the
|
|
|
|
// resize reflow case, because they're handled by the scroll frame
|
|
|
|
if (eReflowReason_Incremental == aReflowState.reason) {
|
|
|
|
nsIReflowCommand::ReflowType reflowType;
|
|
|
|
aReflowState.reflowCommand->GetType(reflowType);
|
|
|
|
|
|
|
|
// For append reflow commands that target the flowed frames just
|
|
|
|
// repaint the newly added part of the frame.
|
|
|
|
if (nsIReflowCommand::FrameAppended == reflowType) {
|
|
|
|
//this blows. we're repainting everything, but we have no choice
|
|
|
|
//since we don't know how we got here. see the XXX above for a
|
|
|
|
//real fix.
|
|
|
|
#if 1
|
|
|
|
damageArea.y = 0;
|
|
|
|
damageArea.height = aDesiredSize.height;
|
|
|
|
damageArea.width = aDesiredSize.width;
|
|
|
|
#else
|
|
|
|
// It's an append reflow command
|
|
|
|
damageArea.y = mRect.YMost();
|
|
|
|
damageArea.width = aDesiredSize.width;
|
|
|
|
damageArea.height = aDesiredSize.height - mRect.height;
|
|
|
|
if ((damageArea.height < 0) ||
|
|
|
|
(aDesiredSize.height == mRect.height)) {
|
|
|
|
// Since we don't know what changed, assume it all changed.
|
|
|
|
damageArea.y = 0;
|
|
|
|
damageArea.height = aDesiredSize.height;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
} else {
|
|
|
|
// Ideally the frame that is the target of the reflow command
|
|
|
|
// (or its parent frame) would generate a damage rect, but
|
|
|
|
// since none of the frame classes know how to do this then
|
|
|
|
// for the time being just repaint the entire frame
|
|
|
|
damageArea.width = aDesiredSize.width;
|
|
|
|
// If the new height is smaller than the old height then make
|
|
|
|
// sure we erase whatever used to be displayed
|
|
|
|
damageArea.height = PR_MAX(aDesiredSize.height, mRect.height);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// If this is really the body, force a repaint of the damage area
|
1999-01-12 19:42:03 +03:00
|
|
|
if ((NS_BLOCK_DOCUMENT_ROOT & mFlags) && !damageArea.IsEmpty()) {
|
1998-12-18 20:54:54 +03:00
|
|
|
Invalidate(damageArea);
|
|
|
|
}
|
|
|
|
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_METHOD
|
|
|
|
nsAreaFrame::CreateContinuingFrame(nsIPresContext& aPresContext,
|
|
|
|
nsIFrame* aParent,
|
|
|
|
nsIStyleContext* aStyleContext,
|
|
|
|
nsIFrame*& aContinuingFrame)
|
|
|
|
{
|
|
|
|
nsAreaFrame* cf = new nsAreaFrame;
|
|
|
|
if (nsnull == cf) {
|
|
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
}
|
1999-01-14 08:16:23 +03:00
|
|
|
cf->Init(aPresContext, mContent, aParent, aStyleContext);
|
1998-12-18 20:54:54 +03:00
|
|
|
cf->SetFlags(mFlags);
|
|
|
|
cf->AppendToFlow(this);
|
|
|
|
aContinuingFrame = cf;
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
// Helper functions
|
|
|
|
|
|
|
|
// Called at the end of the Reflow() member function so we can process
|
|
|
|
// any abolutely positioned items that need to be reflowed
|
|
|
|
void
|
|
|
|
nsAreaFrame::ReflowAbsoluteItems(nsIPresContext& aPresContext,
|
|
|
|
const nsHTMLReflowState& aReflowState)
|
|
|
|
{
|
1999-01-18 22:30:42 +03:00
|
|
|
nsMargin border;
|
|
|
|
const nsStyleSpacing* spacing =
|
|
|
|
(const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing);
|
|
|
|
spacing->GetBorder(border);
|
|
|
|
|
1999-01-16 01:53:39 +03:00
|
|
|
for (nsIFrame* absoluteFrame = mAbsoluteFrames.FirstChild();
|
1998-12-29 06:38:16 +03:00
|
|
|
nsnull != absoluteFrame; absoluteFrame->GetNextSibling(absoluteFrame)) {
|
|
|
|
|
1998-12-18 20:54:54 +03:00
|
|
|
PRBool placeFrame = PR_FALSE;
|
1998-12-29 06:38:16 +03:00
|
|
|
#if 0
|
1998-12-18 20:54:54 +03:00
|
|
|
PRBool reflowFrame = PR_FALSE;
|
1998-12-29 06:38:16 +03:00
|
|
|
#else
|
|
|
|
PRBool reflowFrame = PR_TRUE;
|
|
|
|
#endif
|
1998-12-18 20:54:54 +03:00
|
|
|
nsReflowReason reflowReason = eReflowReason_Resize;
|
|
|
|
|
|
|
|
// Get its style information
|
|
|
|
const nsStyleDisplay* display;
|
|
|
|
const nsStylePosition* position;
|
|
|
|
|
|
|
|
absoluteFrame->GetStyleData(eStyleStruct_Display, (const nsStyleStruct*&)display);
|
|
|
|
absoluteFrame->GetStyleData(eStyleStruct_Position, (const nsStyleStruct*&)position);
|
|
|
|
|
1998-12-29 06:38:16 +03:00
|
|
|
#if 0
|
1998-12-18 20:54:54 +03:00
|
|
|
// See whether the frame is a newly added frame
|
|
|
|
if (!IsAbsoluteFrame(absoluteFrame)) {
|
|
|
|
// The absolutely position item hasn't yet been added to our child list
|
|
|
|
absoluteFrame->SetGeometricParent(this);
|
|
|
|
|
|
|
|
// Add the absolutely positioned frame to the end of the child list
|
|
|
|
AddAbsoluteFrame(absoluteFrame);
|
|
|
|
|
|
|
|
// See whether this is the frame's initial reflow
|
|
|
|
nsFrameState frameState;
|
|
|
|
absoluteFrame->GetFrameState(frameState);
|
|
|
|
if (frameState & NS_FRAME_FIRST_REFLOW) {
|
|
|
|
reflowReason = eReflowReason_Initial;
|
|
|
|
}
|
|
|
|
|
|
|
|
// We need to place and reflow the absolutely positioned frame
|
|
|
|
placeFrame = reflowFrame = PR_TRUE;
|
|
|
|
|
|
|
|
} else {
|
1998-12-29 06:38:16 +03:00
|
|
|
#endif
|
1998-12-18 20:54:54 +03:00
|
|
|
// We need to place the frame if the left-offset or the top-offset are
|
|
|
|
// auto or a percentage
|
1999-01-08 07:47:46 +03:00
|
|
|
if ((eStyleUnit_Coord != position->mOffset.GetLeftUnit()) ||
|
|
|
|
(eStyleUnit_Coord != position->mOffset.GetTopUnit())) {
|
1998-12-18 20:54:54 +03:00
|
|
|
placeFrame = PR_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
// We need to reflow the frame if its width or its height is auto or
|
|
|
|
// a percentage
|
|
|
|
if ((eStyleUnit_Coord != position->mWidth.GetUnit()) ||
|
|
|
|
(eStyleUnit_Coord != position->mHeight.GetUnit())) {
|
|
|
|
reflowFrame = PR_TRUE;
|
|
|
|
}
|
1998-12-29 06:38:16 +03:00
|
|
|
#if 0
|
1998-12-18 20:54:54 +03:00
|
|
|
}
|
1998-12-29 06:38:16 +03:00
|
|
|
#endif
|
1998-12-18 20:54:54 +03:00
|
|
|
|
|
|
|
if (placeFrame || reflowFrame) {
|
|
|
|
nsIHTMLReflow* htmlReflow;
|
|
|
|
if (NS_OK == absoluteFrame->QueryInterface(kIHTMLReflowIID, (void**)&htmlReflow)) {
|
|
|
|
htmlReflow->WillReflow(aPresContext);
|
1999-01-13 09:37:31 +03:00
|
|
|
|
1998-12-18 20:54:54 +03:00
|
|
|
if (reflowFrame) {
|
1999-01-13 09:37:31 +03:00
|
|
|
nsSize availSize(aReflowState.computedWidth, NS_UNCONSTRAINEDSIZE);
|
|
|
|
nsHTMLReflowMetrics kidDesiredSize(nsnull);
|
|
|
|
nsHTMLReflowState kidReflowState(aPresContext, absoluteFrame,
|
|
|
|
aReflowState, availSize,
|
|
|
|
reflowReason);
|
1998-12-18 20:54:54 +03:00
|
|
|
nsReflowStatus status;
|
1999-01-13 09:37:31 +03:00
|
|
|
// XXX Temporary hack until the block/inline code starts using 'computedWidth'
|
|
|
|
kidReflowState.availableWidth = kidReflowState.computedWidth;
|
|
|
|
htmlReflow->Reflow(aPresContext, kidDesiredSize, kidReflowState, status);
|
1998-12-18 20:54:54 +03:00
|
|
|
|
1999-01-18 22:30:42 +03:00
|
|
|
// Position the child relative to our padding edge
|
|
|
|
nsRect rect(border.left + kidReflowState.computedOffsets.left + kidReflowState.computedMargin.left,
|
|
|
|
border.top + kidReflowState.computedOffsets.top + kidReflowState.computedMargin.top,
|
1999-01-13 09:37:31 +03:00
|
|
|
kidDesiredSize.width, kidDesiredSize.height);
|
1998-12-18 20:54:54 +03:00
|
|
|
absoluteFrame->SetRect(rect);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
// Diagnostics
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsAreaFrame::GetFrameName(nsString& aResult) const
|
|
|
|
{
|
|
|
|
return MakeFrameName("Area", aResult);
|
|
|
|
}
|