mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 06:35:42 +00:00
5748 lines
224 KiB
C++
5748 lines
224 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
#include "nsCSSFrameConstructor.h"
|
|
#include "nsIArena.h"
|
|
#include "nsCRT.h"
|
|
#include "nsIAtom.h"
|
|
#include "nsIURL.h"
|
|
#include "nsISupportsArray.h"
|
|
#include "nsHashtable.h"
|
|
#include "nsIHTMLContent.h"
|
|
#include "nsIHTMLAttributes.h"
|
|
#include "nsIStyleRule.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsIStyleContext.h"
|
|
#include "nsHTMLAtoms.h"
|
|
#include "nsIPresContext.h"
|
|
#include "nsILinkHandler.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsIHTMLTableCellElement.h"
|
|
#include "nsTableColFrame.h"
|
|
#include "nsHTMLIIDs.h"
|
|
#include "nsIStyleFrameConstruction.h"
|
|
#include "nsHTMLParts.h"
|
|
#include "nsIPresShell.h"
|
|
#include "nsIStyleSet.h"
|
|
#include "nsIViewManager.h"
|
|
#include "nsStyleConsts.h"
|
|
#include "nsTableOuterFrame.h"
|
|
#include "nsIXMLDocument.h"
|
|
#include "nsIWebShell.h"
|
|
#include "nsHTMLContainerFrame.h"
|
|
#include "nsINameSpaceManager.h"
|
|
#include "nsLayoutAtoms.h"
|
|
#include "nsIDOMHTMLSelectElement.h"
|
|
#include "nsIComboboxControlFrame.h"
|
|
#include "nsIListControlFrame.h"
|
|
#include "nsIDOMCharacterData.h"
|
|
#include "nsIDOMHTMLImageElement.h"
|
|
#include "nsITextContent.h"
|
|
#include "nsPlaceholderFrame.h"
|
|
#include "nsTableRowGroupFrame.h"
|
|
#include "nsStyleChangeList.h"
|
|
#include "nsIFormControl.h"
|
|
#include "nsCSSAtoms.h"
|
|
#include "nsIDeviceContext.h"
|
|
#include "nsTextFragment.h"
|
|
|
|
#ifdef INCLUDE_XUL
|
|
#include "nsXULAtoms.h"
|
|
#include "nsTriStateCheckboxFrame.h"
|
|
#include "nsSliderFrame.h"
|
|
#include "nsScrollbarFrame.h"
|
|
#include "nsSpinnerFrame.h"
|
|
#include "nsColorPickerFrame.h"
|
|
#include "nsFontPickerFrame.h"
|
|
#include "nsTreeFrame.h"
|
|
#include "nsToolboxFrame.h"
|
|
#include "nsToolbarFrame.h"
|
|
#include "nsTreeIndentationFrame.h"
|
|
#include "nsTreeCellFrame.h"
|
|
|
|
nsresult
|
|
NS_NewTabFrame ( nsIFrame*& aNewFrame );
|
|
|
|
nsresult
|
|
NS_NewDeckFrame ( nsIFrame*& aNewFrame );
|
|
|
|
nsresult
|
|
NS_NewProgressMeterFrame ( nsIFrame*& aNewFrame );
|
|
|
|
nsresult
|
|
NS_NewTitledButtonFrame ( nsIFrame*& aNewFrame );
|
|
|
|
nsresult
|
|
NS_NewBoxFrame ( nsIFrame*& aNewFrame );
|
|
|
|
#endif
|
|
|
|
//static NS_DEFINE_IID(kIStyleRuleIID, NS_ISTYLE_RULE_IID);
|
|
static NS_DEFINE_IID(kIStyleFrameConstructionIID, NS_ISTYLE_FRAME_CONSTRUCTION_IID);
|
|
static NS_DEFINE_IID(kIHTMLTableCellElementIID, NS_IHTMLTABLECELLELEMENT_IID);
|
|
static NS_DEFINE_IID(kIXMLDocumentIID, NS_IXMLDOCUMENT_IID);
|
|
static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
|
|
|
|
static NS_DEFINE_IID(kIDOMHTMLSelectElementIID, NS_IDOMHTMLSELECTELEMENT_IID);
|
|
static NS_DEFINE_IID(kIComboboxControlFrameIID, NS_ICOMBOBOXCONTROLFRAME_IID);
|
|
static NS_DEFINE_IID(kIListControlFrameIID, NS_ILISTCONTROLFRAME_IID);
|
|
static NS_DEFINE_IID(kIDOMHTMLImageElementIID, NS_IDOMHTMLIMAGEELEMENT_IID);
|
|
static NS_DEFINE_IID(kIDOMCharacterDataIID, NS_IDOMCHARACTERDATA_IID);
|
|
static NS_DEFINE_IID(kScrollViewIID, NS_ISCROLLABLEVIEW_IID);
|
|
static NS_DEFINE_IID(kIFormControlIID, NS_IFORMCONTROL_IID);
|
|
static NS_DEFINE_IID(kIFrameIID, NS_IFRAME_IID);
|
|
|
|
|
|
// Structure used when constructing formatting object trees.
|
|
struct nsFrameItems {
|
|
nsIFrame* childList;
|
|
nsIFrame* lastChild;
|
|
|
|
nsFrameItems();
|
|
nsFrameItems(nsIFrame* aFrame);
|
|
|
|
// Appends the frame to the end of the list
|
|
void AddChild(nsIFrame* aChild);
|
|
};
|
|
|
|
nsFrameItems::nsFrameItems()
|
|
: childList(nsnull), lastChild(nsnull)
|
|
{
|
|
}
|
|
|
|
nsFrameItems::nsFrameItems(nsIFrame* aFrame)
|
|
: childList(aFrame), lastChild(aFrame)
|
|
{
|
|
}
|
|
|
|
void
|
|
nsFrameItems::AddChild(nsIFrame* aChild)
|
|
{
|
|
if (childList == nsnull) {
|
|
childList = lastChild = aChild;
|
|
}
|
|
else
|
|
{
|
|
lastChild->SetNextSibling(aChild);
|
|
lastChild = aChild;
|
|
}
|
|
}
|
|
|
|
// -----------------------------------------------------------
|
|
|
|
// Structure used when constructing formatting object trees. Contains
|
|
// state information needed for absolutely positioned elements
|
|
struct nsAbsoluteItems : nsFrameItems {
|
|
// containing block for absolutely positioned elements
|
|
nsIFrame* const containingBlock;
|
|
|
|
nsAbsoluteItems(nsIFrame* aContainingBlock);
|
|
|
|
// Appends the frame to the end of the list
|
|
void AddChild(nsIFrame* aChild);
|
|
};
|
|
|
|
nsAbsoluteItems::nsAbsoluteItems(nsIFrame* aContainingBlock)
|
|
: containingBlock(aContainingBlock)
|
|
{
|
|
}
|
|
|
|
// Additional behavior is that it sets the frame's NS_FRAME_OUT_OF_FLOW flag
|
|
void
|
|
nsAbsoluteItems::AddChild(nsIFrame* aChild)
|
|
{
|
|
nsFrameState frameState;
|
|
|
|
// Mark the frame as being moved out of the flow
|
|
aChild->GetFrameState(&frameState);
|
|
aChild->SetFrameState(frameState | NS_FRAME_OUT_OF_FLOW);
|
|
nsFrameItems::AddChild(aChild);
|
|
}
|
|
|
|
// -----------------------------------------------------------
|
|
|
|
// Structure used when creating table frames.
|
|
struct nsTableCreator {
|
|
virtual nsresult CreateTableFrame(nsIFrame*& aNewFrame);
|
|
virtual nsresult CreateTableRowGroupFrame(nsIFrame*& aNewFrame);
|
|
virtual nsresult CreateTableColFrame(nsIFrame*& aNewFrame);
|
|
virtual nsresult CreateTableColGroupFrame(nsIFrame*& aNewFrame);
|
|
virtual nsresult CreateTableRowFrame(nsIFrame*& aNewFrame);
|
|
virtual nsresult CreateTableCellFrame(nsIFrame*& aNewFrame);
|
|
};
|
|
|
|
nsresult
|
|
nsTableCreator::CreateTableFrame(nsIFrame*& aNewFrame) {
|
|
return NS_NewTableFrame(aNewFrame);
|
|
}
|
|
|
|
nsresult
|
|
nsTableCreator::CreateTableRowGroupFrame(nsIFrame*& aNewFrame) {
|
|
return NS_NewTableRowGroupFrame(aNewFrame);
|
|
}
|
|
|
|
nsresult
|
|
nsTableCreator::CreateTableColFrame(nsIFrame*& aNewFrame) {
|
|
return NS_NewTableColFrame(aNewFrame);
|
|
}
|
|
|
|
nsresult
|
|
nsTableCreator::CreateTableColGroupFrame(nsIFrame*& aNewFrame) {
|
|
return NS_NewTableColGroupFrame(aNewFrame);
|
|
}
|
|
|
|
nsresult
|
|
nsTableCreator::CreateTableRowFrame(nsIFrame*& aNewFrame) {
|
|
return NS_NewTableRowFrame(aNewFrame);
|
|
}
|
|
|
|
nsresult
|
|
nsTableCreator::CreateTableCellFrame(nsIFrame*& aNewFrame) {
|
|
return NS_NewTableCellFrame(aNewFrame);
|
|
}
|
|
|
|
#ifdef INCLUDE_XUL
|
|
|
|
// Structure used when creating tree frames
|
|
struct nsTreeCreator: public nsTableCreator {
|
|
nsresult CreateTableFrame(nsIFrame*& aNewFrame);
|
|
nsresult CreateTableCellFrame(nsIFrame*& aNewFrame);
|
|
};
|
|
|
|
nsresult
|
|
nsTreeCreator::CreateTableFrame(nsIFrame*& aNewFrame)
|
|
{
|
|
return NS_NewTreeFrame(aNewFrame);
|
|
}
|
|
|
|
nsresult
|
|
nsTreeCreator::CreateTableCellFrame(nsIFrame*& aNewFrame)
|
|
{
|
|
return NS_NewTreeCellFrame(aNewFrame);
|
|
}
|
|
|
|
#endif // INCLUDE_XUL
|
|
|
|
// -----------------------------------------------------------
|
|
|
|
nsCSSFrameConstructor::nsCSSFrameConstructor(void)
|
|
: nsIStyleFrameConstruction(),
|
|
mDocument(nsnull),
|
|
mInitialContainingBlock(nsnull),
|
|
mFixedContainingBlock(nsnull),
|
|
mDocElementContainingBlock(nsnull)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
#ifdef INCLUDE_XUL
|
|
nsXULAtoms::AddrefAtoms();
|
|
nsHTMLAtoms::AddrefAtoms();
|
|
#endif
|
|
}
|
|
|
|
nsCSSFrameConstructor::~nsCSSFrameConstructor(void)
|
|
{
|
|
#ifdef INCLUDE_XUL
|
|
nsXULAtoms::ReleaseAtoms();
|
|
nsHTMLAtoms::ReleaseAtoms();
|
|
#endif
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(nsCSSFrameConstructor, kIStyleFrameConstructionIID);
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::Init(nsIDocument* aDocument)
|
|
{
|
|
NS_PRECONDITION(aDocument, "null ptr");
|
|
if (! aDocument)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
if (mDocument)
|
|
return NS_ERROR_ALREADY_INITIALIZED;
|
|
|
|
mDocument = aDocument; // not refcounted!
|
|
return NS_OK;
|
|
}
|
|
|
|
// Helper function that determines the child list name that aChildFrame
|
|
// is contained in
|
|
static void
|
|
GetChildListNameFor(nsIFrame* aParentFrame,
|
|
nsIFrame* aChildFrame,
|
|
nsIAtom** aListName)
|
|
{
|
|
nsFrameState frameState;
|
|
nsIAtom* listName;
|
|
|
|
// See if the frame is moved out of the flow
|
|
aChildFrame->GetFrameState(&frameState);
|
|
if (frameState & NS_FRAME_OUT_OF_FLOW) {
|
|
// Look at the style information to tell
|
|
const nsStylePosition* position;
|
|
aChildFrame->GetStyleData(eStyleStruct_Position, (const nsStyleStruct*&)position);
|
|
|
|
if (NS_STYLE_POSITION_ABSOLUTE == position->mPosition) {
|
|
listName = nsLayoutAtoms::absoluteList;
|
|
} else if (NS_STYLE_POSITION_FIXED == position->mPosition) {
|
|
listName = nsLayoutAtoms::fixedList;
|
|
} else {
|
|
#ifdef NS_DEBUG
|
|
const nsStyleDisplay* display;
|
|
aChildFrame->GetStyleData(eStyleStruct_Display, (const nsStyleStruct*&)display);
|
|
NS_ASSERTION(display->IsFloating(), "not a floated frame");
|
|
#endif
|
|
listName = nsLayoutAtoms::floaterList;
|
|
}
|
|
|
|
} else {
|
|
listName = nsnull;
|
|
}
|
|
|
|
// Verify that the frame is actually in that child list
|
|
#ifdef NS_DEBUG
|
|
nsIFrame* firstChild;
|
|
aParentFrame->FirstChild(listName, &firstChild);
|
|
|
|
nsFrameList frameList(firstChild);
|
|
NS_ASSERTION(frameList.ContainsFrame(aChildFrame), "not in child list");
|
|
#endif
|
|
|
|
NS_IF_ADDREF(listName);
|
|
*aListName = listName;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::CreateGeneratedFrameFor(nsIPresContext* aPresContext,
|
|
nsIFrame* aParentFrame,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aStyleContext,
|
|
const nsStyleContent* aStyleContent,
|
|
PRUint32 aContentIndex,
|
|
nsIFrame** aFrame)
|
|
{
|
|
*aFrame = nsnull; // initialize OUT parameter
|
|
|
|
// Get the content value
|
|
nsStyleContentType type;
|
|
nsAutoString contentString;
|
|
aStyleContent->GetContentAt(aContentIndex, type, contentString);
|
|
|
|
if (eStyleContentType_URL == type) {
|
|
nsIHTMLContent* imageContent;
|
|
|
|
// Create an HTML image content object, and set the SRC.
|
|
// XXX Check if it's an image type we can handle...
|
|
NS_NewHTMLImageElement(&imageContent, nsHTMLAtoms::img);
|
|
imageContent->SetHTMLAttribute(nsHTMLAtoms::src, contentString, PR_FALSE);
|
|
|
|
// Create an image frame and initialize it
|
|
nsIFrame* imageFrame;
|
|
NS_NewImageFrame(imageFrame);
|
|
imageFrame->Init(*aPresContext, imageContent, aParentFrame, aStyleContext, nsnull);
|
|
NS_RELEASE(imageContent);
|
|
|
|
// Return the image frame
|
|
*aFrame = imageFrame;
|
|
|
|
} else {
|
|
switch (type) {
|
|
case eStyleContentType_String:
|
|
break;
|
|
|
|
case eStyleContentType_Attr:
|
|
{ // XXX for now, prefetch the attr value, this needs to be a special content node
|
|
nsIAtom* attrName = NS_NewAtom(contentString);
|
|
aContent->GetAttribute(kNameSpaceID_None, attrName, contentString); // XXX need attr namespace from style
|
|
NS_RELEASE(attrName);
|
|
}
|
|
break;
|
|
|
|
case eStyleContentType_Counter:
|
|
case eStyleContentType_Counters:
|
|
case eStyleContentType_URL:
|
|
return NS_ERROR_NOT_IMPLEMENTED; // XXX not supported yet...
|
|
|
|
case eStyleContentType_OpenQuote:
|
|
case eStyleContentType_CloseQuote:
|
|
{
|
|
PRUint32 quotesCount = aStyleContent->QuotesCount();
|
|
if (quotesCount > 0) {
|
|
nsAutoString openQuote, closeQuote;
|
|
|
|
// If the depth is greater than the number of pairs, the last pair
|
|
// is repeated
|
|
PRUint32 quoteDepth = 0; // XXX really track the nested quotes...
|
|
if (quoteDepth > quotesCount) {
|
|
quoteDepth = quotesCount - 1;
|
|
}
|
|
aStyleContent->GetQuotesAt(quoteDepth, openQuote, closeQuote);
|
|
if (eStyleContentType_OpenQuote == type) {
|
|
contentString = openQuote;
|
|
} else {
|
|
contentString = closeQuote;
|
|
}
|
|
|
|
} else {
|
|
contentString = '\"';
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eStyleContentType_NoOpenQuote:
|
|
case eStyleContentType_NoCloseQuote:
|
|
// XXX Adjust quote depth...
|
|
return NS_OK;
|
|
}
|
|
|
|
// Create a text content node
|
|
nsIContent* textContent;
|
|
nsIDOMCharacterData* domData;
|
|
|
|
NS_NewTextNode(&textContent);
|
|
textContent->QueryInterface(kIDOMCharacterDataIID, (void**)&domData);
|
|
domData->SetData(contentString);
|
|
NS_RELEASE(domData);
|
|
|
|
// Create a text frame and initialize it
|
|
nsIFrame* textFrame;
|
|
NS_NewTextFrame(textFrame);
|
|
textFrame->Init(*aPresContext, textContent, aParentFrame, aStyleContext, nsnull);
|
|
|
|
NS_RELEASE(textContent);
|
|
|
|
// Return the text frame
|
|
*aFrame = textFrame;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
PRBool
|
|
nsCSSFrameConstructor::CreateGeneratedContentFrame(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aStyleContext,
|
|
nsIAtom* aPseudoElement,
|
|
nsIFrame** aResult)
|
|
{
|
|
*aResult = nsnull; // initialize OUT parameter
|
|
|
|
// Probe for the existence of the pseudo-element
|
|
nsIStyleContext* pseudoStyleContext;
|
|
aPresContext->ProbePseudoStyleContextFor(aContent, aPseudoElement, aStyleContext,
|
|
PR_FALSE, &pseudoStyleContext);
|
|
|
|
if (pseudoStyleContext) {
|
|
const nsStyleDisplay* display;
|
|
|
|
// See whether the generated content should be displayed.
|
|
display = (const nsStyleDisplay*)pseudoStyleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
if (NS_STYLE_DISPLAY_NONE != display->mDisplay) {
|
|
// See if there was any content specified
|
|
const nsStyleContent* styleContent =
|
|
(const nsStyleContent*)pseudoStyleContext->GetStyleData(eStyleStruct_Content);
|
|
PRUint32 contentCount = styleContent->ContentCount();
|
|
|
|
if (contentCount > 0) {
|
|
PRUint8 displayValue = display->mDisplay;
|
|
|
|
// Make sure the 'display' property value is allowable
|
|
const nsStyleDisplay* subjectDisplay = (const nsStyleDisplay*)
|
|
aStyleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
if (subjectDisplay->IsBlockLevel()) {
|
|
// For block-level elements the only allowed 'display' values are:
|
|
// 'none', 'inline', 'block', and 'marker'
|
|
if ((NS_STYLE_DISPLAY_INLINE != displayValue) &&
|
|
(NS_STYLE_DISPLAY_BLOCK != displayValue) &&
|
|
(NS_STYLE_DISPLAY_MARKER != displayValue)) {
|
|
// Pseudo-element behaves as if the value were 'block'
|
|
displayValue = NS_STYLE_DISPLAY_BLOCK;
|
|
}
|
|
|
|
} else {
|
|
// For inline-level elements the only allowed 'display' values are
|
|
// 'none' and 'inline'
|
|
displayValue = NS_STYLE_DISPLAY_INLINE;
|
|
}
|
|
|
|
if (display->mDisplay != displayValue) {
|
|
// Reset the value
|
|
nsStyleDisplay* mutableDisplay = (nsStyleDisplay*)
|
|
pseudoStyleContext->GetMutableStyleData(eStyleStruct_Display);
|
|
|
|
mutableDisplay->mDisplay = displayValue;
|
|
}
|
|
|
|
// Also make sure the 'position' property is 'static'. :before and :after
|
|
// pseudo-elements can not be floated or positioned
|
|
const nsStylePosition * stylePosition =
|
|
(const nsStylePosition*)pseudoStyleContext->GetStyleData(eStyleStruct_Position);
|
|
if (NS_STYLE_POSITION_NORMAL != stylePosition->mPosition) {
|
|
// Reset the value
|
|
nsStylePosition* mutablePosition = (nsStylePosition*)
|
|
pseudoStyleContext->GetMutableStyleData(eStyleStruct_Position);
|
|
|
|
mutablePosition->mPosition = NS_STYLE_POSITION_NORMAL;
|
|
}
|
|
|
|
// Create a block box or an inline box depending on the value of
|
|
// the 'display' property
|
|
nsIFrame* containerFrame;
|
|
nsFrameItems childFrames;
|
|
|
|
if (NS_STYLE_DISPLAY_BLOCK == displayValue) {
|
|
NS_NewBlockFrame(containerFrame, 0);
|
|
} else {
|
|
NS_NewInlineFrame(containerFrame);
|
|
}
|
|
containerFrame->Init(*aPresContext, aContent, aFrame, pseudoStyleContext, nsnull);
|
|
|
|
// Mark the frame as being associated with generated content
|
|
nsFrameState frameState;
|
|
containerFrame->GetFrameState(&frameState);
|
|
frameState |= NS_FRAME_GENERATED_CONTENT;
|
|
containerFrame->SetFrameState(frameState);
|
|
|
|
// Create another pseudo style context to use for all the generated child
|
|
// frames
|
|
nsIStyleContext* textStyleContext;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::textPseudo,
|
|
pseudoStyleContext, PR_FALSE,
|
|
&textStyleContext);
|
|
|
|
// Now create content objects (and child frames) for each value of the
|
|
// 'content' property
|
|
for (PRUint32 contentIndex = 0; contentIndex < contentCount; contentIndex++) {
|
|
nsIFrame* frame;
|
|
nsresult result;
|
|
|
|
// Create a frame
|
|
result = CreateGeneratedFrameFor(aPresContext, containerFrame, aContent,
|
|
textStyleContext, styleContent,
|
|
contentIndex, &frame);
|
|
if (NS_SUCCEEDED(result) && frame) {
|
|
// Add it to the list of child frames
|
|
childFrames.AddChild(frame);
|
|
}
|
|
}
|
|
|
|
NS_RELEASE(textStyleContext);
|
|
NS_RELEASE(pseudoStyleContext);
|
|
if (childFrames.childList) {
|
|
containerFrame->SetInitialChildList(*aPresContext, nsnull, childFrames.childList);
|
|
}
|
|
*aResult = containerFrame;
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
return PR_FALSE;
|
|
}
|
|
|
|
/**
|
|
* Request to process the child content elements and create frames.
|
|
*
|
|
* @param aContent the content object whose child elements to process
|
|
* @param aFrame the the associated with aContent. This will be the
|
|
* parent frame (both content and geometric) for the flowed
|
|
* child frames
|
|
*/
|
|
nsresult
|
|
nsCSSFrameConstructor::ProcessChildren(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aFrame,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsFrameItems& aFrameItems,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsAbsoluteItems& aFloatingItems,
|
|
PRBool aCanHaveGeneratedContent)
|
|
{
|
|
nsIStyleContext* styleContext = nsnull;
|
|
|
|
if (aCanHaveGeneratedContent) {
|
|
nsIFrame* generatedFrame;
|
|
|
|
// Probe for generated content before
|
|
aFrame->GetStyleContext(&styleContext);
|
|
if (CreateGeneratedContentFrame(aPresContext, aFrame, aContent, styleContext,
|
|
nsCSSAtoms::beforePseudo, &generatedFrame)) {
|
|
// Add the generated frame to the child list
|
|
aFrameItems.AddChild(generatedFrame);
|
|
}
|
|
}
|
|
|
|
// Iterate the child content objects and construct frames
|
|
PRInt32 count;
|
|
|
|
aContent->ChildCount(count);
|
|
for (PRInt32 i = 0; i < count; i++) {
|
|
nsCOMPtr<nsIContent> childContent;
|
|
if (NS_SUCCEEDED(aContent->ChildAt(i, *getter_AddRefs(childContent)))) {
|
|
// Construct a child frame
|
|
ConstructFrame(aPresContext, childContent, aFrame, aAbsoluteItems,
|
|
aFrameItems, aFixedItems, aFloatingItems, PR_FALSE);
|
|
}
|
|
}
|
|
|
|
if (aCanHaveGeneratedContent) {
|
|
nsIFrame* generatedFrame;
|
|
|
|
// Probe for generated content after
|
|
if (CreateGeneratedContentFrame(aPresContext, aFrame, aContent, styleContext,
|
|
nsCSSAtoms::afterPseudo, &generatedFrame)) {
|
|
// Add the generated frame to the child list
|
|
aFrameItems.AddChild(generatedFrame);
|
|
}
|
|
}
|
|
|
|
NS_IF_RELEASE(styleContext);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::CreateInputFrame(nsIContent* aContent, nsIFrame*& aFrame)
|
|
{
|
|
nsresult rv;
|
|
|
|
// Figure out which type of input frame to create
|
|
nsAutoString val;
|
|
if (NS_OK == aContent->GetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::type, val)) {
|
|
if (val.EqualsIgnoreCase("submit")) {
|
|
rv = NS_NewButtonControlFrame(aFrame);
|
|
}
|
|
else if (val.EqualsIgnoreCase("reset")) {
|
|
rv = NS_NewButtonControlFrame(aFrame);
|
|
}
|
|
else if (val.EqualsIgnoreCase("button")) {
|
|
rv = NS_NewButtonControlFrame(aFrame);
|
|
}
|
|
else if (val.EqualsIgnoreCase("checkbox")) {
|
|
rv = NS_NewCheckboxControlFrame(aFrame);
|
|
}
|
|
else if (val.EqualsIgnoreCase("file")) {
|
|
rv = NS_NewFileControlFrame(aFrame);
|
|
}
|
|
else if (val.EqualsIgnoreCase("hidden")) {
|
|
rv = NS_NewButtonControlFrame(aFrame);
|
|
}
|
|
else if (val.EqualsIgnoreCase("image")) {
|
|
rv = NS_NewImageControlFrame(aFrame);
|
|
}
|
|
else if (val.EqualsIgnoreCase("password")) {
|
|
rv = NS_NewTextControlFrame(aFrame);
|
|
}
|
|
else if (val.EqualsIgnoreCase("radio")) {
|
|
rv = NS_NewRadioControlFrame(aFrame);
|
|
}
|
|
else if (val.EqualsIgnoreCase("text")) {
|
|
rv = NS_NewTextControlFrame(aFrame);
|
|
}
|
|
else {
|
|
rv = NS_NewTextControlFrame(aFrame);
|
|
}
|
|
} else {
|
|
rv = NS_NewTextControlFrame(aFrame);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
/****************************************************
|
|
** BEGIN TABLE SECTION
|
|
****************************************************/
|
|
|
|
struct nsTableList {
|
|
nsTableList() {
|
|
mInner = mChild = nsnull;
|
|
}
|
|
void Set(nsIFrame* aInner, nsIFrame* aChild) {
|
|
mInner = aInner;
|
|
mChild = aChild;
|
|
}
|
|
nsIFrame* mInner;
|
|
nsIFrame* mChild;
|
|
};
|
|
|
|
// Construct the outer, inner table frames and the children frames for the table.
|
|
// Tables can have any table-related child.
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructTableFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsIFrame*& aNewFrame,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
nsIFrame* childList;
|
|
nsIFrame* innerFrame;
|
|
nsIFrame* innerChildList = nsnull;
|
|
nsIFrame* captionFrame = nsnull;
|
|
|
|
// Create an anonymous table outer frame which holds the caption and table frame
|
|
NS_NewTableOuterFrame(aNewFrame);
|
|
|
|
// Init the table outer frame and see if we need to create a view, e.g.
|
|
// the frame is absolutely positioned
|
|
aNewFrame->Init(*aPresContext, aContent, aParentFrame, aStyleContext, nsnull);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, aNewFrame,
|
|
aStyleContext, PR_FALSE);
|
|
nsCOMPtr<nsIStyleContext> parentStyleContext;
|
|
aParentFrame->GetStyleContext(getter_AddRefs(parentStyleContext));
|
|
#if 0
|
|
nsCOMPtr<nsIStyleContext> outerStyleContext;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableOuterPseudo,
|
|
parentStyleContext,
|
|
getter_AddRefs(outerStyleContext));
|
|
aNewFrame->Init(*aPresContext, aContent, aParentFrame, outerStyleContext);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, aNewFrame,
|
|
outerStyleContext, PR_FALSE);
|
|
#endif
|
|
// Create the inner table frame
|
|
aTableCreator.CreateTableFrame(innerFrame);
|
|
|
|
// This gets reset later, since there may also be a caption.
|
|
// It allows descendants to get at the inner frame before that
|
|
// XXX This is very wrong. You cannot call SetInitialChildList() more
|
|
// than once (see the nsIFrame header file). Either call it once only,
|
|
// _or_ move the caption out into a separate named child list...
|
|
// XXX The other things that's wrong here is that the calls to
|
|
// SetInitialChildList() are bottom-up, and the order is wrong...
|
|
aNewFrame->SetInitialChildList(*aPresContext, nsnull, innerFrame);
|
|
childList = innerFrame;
|
|
|
|
innerFrame->Init(*aPresContext, aContent, aNewFrame, aStyleContext, nsnull);
|
|
|
|
nsIFrame* lastChildFrame = nsnull;
|
|
PRInt32 count;
|
|
aContent->ChildCount(count);
|
|
|
|
for (PRInt32 i = 0; i < count; i++) { // iterate the child content
|
|
nsCOMPtr<nsIContent> childContent;
|
|
|
|
if (NS_SUCCEEDED(aContent->ChildAt(i, *getter_AddRefs(childContent)))) {
|
|
nsIFrame* childFrame = nsnull;
|
|
nsIFrame* ignore1;
|
|
nsIFrame* ignore2;
|
|
nsCOMPtr<nsIStyleContext> childStyleContext;
|
|
|
|
// Resolve the style context and get its display
|
|
aPresContext->ResolveStyleContextFor(childContent, aStyleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(childStyleContext));
|
|
const nsStyleDisplay* styleDisplay = (const nsStyleDisplay*)
|
|
childStyleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
switch (styleDisplay->mDisplay) {
|
|
case NS_STYLE_DISPLAY_TABLE_CAPTION:
|
|
if (nsnull == captionFrame) { // only allow one caption
|
|
// XXX should absolute items be passed along?
|
|
rv = ConstructTableCaptionFrame(aPresContext, childContent, aNewFrame, childStyleContext,
|
|
aAbsoluteItems, ignore1, captionFrame, aFixedItems, aTableCreator);
|
|
}
|
|
break;
|
|
|
|
case NS_STYLE_DISPLAY_TABLE_HEADER_GROUP:
|
|
case NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP:
|
|
case NS_STYLE_DISPLAY_TABLE_ROW_GROUP:
|
|
case NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP:
|
|
{
|
|
PRBool isRowGroup = (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP != styleDisplay->mDisplay);
|
|
rv = ConstructTableGroupFrame(aPresContext, childContent, innerFrame, childStyleContext,
|
|
aAbsoluteItems, isRowGroup, childFrame, ignore1, aFixedItems, aTableCreator);
|
|
break;
|
|
}
|
|
case NS_STYLE_DISPLAY_TABLE_ROW:
|
|
rv = ConstructTableRowFrame(aPresContext, childContent, innerFrame, childStyleContext,
|
|
aAbsoluteItems, childFrame, ignore1, aFixedItems, aTableCreator);
|
|
break;
|
|
|
|
case NS_STYLE_DISPLAY_TABLE_COLUMN:
|
|
rv = ConstructTableColFrame(aPresContext, childContent, innerFrame, childStyleContext,
|
|
aAbsoluteItems, childFrame, ignore1, aFixedItems, aTableCreator);
|
|
break;
|
|
|
|
|
|
case NS_STYLE_DISPLAY_TABLE_CELL:
|
|
rv = ConstructTableCellFrame(aPresContext, childContent, innerFrame, childStyleContext,
|
|
aAbsoluteItems, childFrame, ignore1, ignore2, aFixedItems, aTableCreator);
|
|
break;
|
|
default:
|
|
//nsIFrame* nonTableRelatedFrame;
|
|
//nsIAtom* tag;
|
|
//childContent->GetTag(tag);
|
|
//ConstructFrameByTag(aPresContext, childContent, aNewFrame, tag, childStyleContext,
|
|
// aAbsoluteItems, nonTableRelatedFrame);
|
|
//childList->SetNextSibling(nonTableRelatedFrame);
|
|
//NS_IF_RELEASE(tag);
|
|
nsFrameItems childItems;
|
|
TableProcessChild(aPresContext, childContent, innerFrame, parentStyleContext,
|
|
aAbsoluteItems, childItems, aFixedItems, aTableCreator);
|
|
childFrame = childItems.childList; // XXX: Need to change this whole function to return a list of frames
|
|
// rather than a single frame. - DWH
|
|
break;
|
|
}
|
|
|
|
// for every table related frame except captions, link into the child list
|
|
if (nsnull != childFrame) {
|
|
if (nsnull == lastChildFrame) {
|
|
innerChildList = childFrame;
|
|
} else {
|
|
lastChildFrame->SetNextSibling(childFrame);
|
|
}
|
|
lastChildFrame = childFrame;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set the inner table frame's list of initial child frames
|
|
innerFrame->SetInitialChildList(*aPresContext, nsnull, innerChildList);
|
|
|
|
// Set the anonymous table outer frame's initial child list
|
|
aNewFrame->SetInitialChildList(*aPresContext, nsnull, childList);
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructAnonymousTableFrame (nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIFrame*& aNewTopFrame,
|
|
nsIFrame*& aOuterFrame,
|
|
nsIFrame*& aInnerFrame,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
NS_WARNING("an anonymous table frame was created. \n");
|
|
nsCOMPtr<nsIStyleContext> parentStyleContext;
|
|
aParentFrame->GetStyleContext(getter_AddRefs(parentStyleContext));
|
|
const nsStyleDisplay* parentDisplay =
|
|
(const nsStyleDisplay*) parentStyleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
PRBool cellIsParent = PR_TRUE;
|
|
nsIFrame* cellFrame;
|
|
nsIFrame* cellBodyFrame;
|
|
nsCOMPtr<nsIStyleContext> cellStyleContext;
|
|
nsIFrame* ignore;
|
|
|
|
// construct the ancestors of anonymous table frames
|
|
switch(parentDisplay->mDisplay) {
|
|
case NS_STYLE_DISPLAY_TABLE_CELL:
|
|
break;
|
|
case NS_STYLE_DISPLAY_TABLE_ROW: // construct a cell
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableCellPseudo, parentStyleContext,
|
|
PR_FALSE, getter_AddRefs(cellStyleContext));
|
|
rv = ConstructTableCellFrame(aPresContext, aContent, aParentFrame, cellStyleContext, aAbsoluteItems,
|
|
aNewTopFrame, cellFrame, cellBodyFrame, aFixedItems, aTableCreator, PR_FALSE);
|
|
break;
|
|
case NS_STYLE_DISPLAY_TABLE_ROW_GROUP: // construct a row & a cell
|
|
case NS_STYLE_DISPLAY_TABLE_HEADER_GROUP:
|
|
case NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP:
|
|
{
|
|
nsIFrame* rowFrame;
|
|
nsCOMPtr<nsIStyleContext> rowStyleContext;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableRowPseudo,
|
|
parentStyleContext, PR_FALSE,
|
|
getter_AddRefs(rowStyleContext));
|
|
rv = ConstructTableRowFrame(aPresContext, aContent, aParentFrame, rowStyleContext,
|
|
aAbsoluteItems, aNewTopFrame, rowFrame, aFixedItems,
|
|
aTableCreator);
|
|
if (NS_FAILED(rv)) return rv;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableCellPseudo, parentStyleContext,
|
|
PR_FALSE, getter_AddRefs(cellStyleContext));
|
|
rv = ConstructTableCellFrame(aPresContext, aContent, rowFrame, cellStyleContext,
|
|
aAbsoluteItems, ignore, cellFrame, cellBodyFrame,
|
|
aFixedItems, aTableCreator, PR_FALSE);
|
|
rowFrame->SetInitialChildList(*aPresContext, nsnull, cellFrame);
|
|
break;
|
|
}
|
|
case NS_STYLE_DISPLAY_TABLE: // construct a row group, a row, & a cell
|
|
{
|
|
nsIFrame* groupFrame;
|
|
nsCOMPtr<nsIStyleContext> groupStyleContext;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableRowGroupPseudo,
|
|
parentStyleContext, PR_FALSE,
|
|
getter_AddRefs(groupStyleContext));
|
|
rv = ConstructTableGroupFrame(aPresContext, aContent, aParentFrame, groupStyleContext,
|
|
aAbsoluteItems, PR_TRUE, aNewTopFrame, groupFrame, aFixedItems,
|
|
aTableCreator);
|
|
if (NS_FAILED(rv)) return rv;
|
|
nsIFrame* rowFrame;
|
|
nsCOMPtr<nsIStyleContext> rowStyleContext;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableRowPseudo,
|
|
parentStyleContext, PR_FALSE,
|
|
getter_AddRefs(rowStyleContext));
|
|
rv = ConstructTableRowFrame(aPresContext, aContent, aParentFrame, rowStyleContext,
|
|
aAbsoluteItems, ignore, rowFrame, aFixedItems,
|
|
aTableCreator);
|
|
if (NS_FAILED(rv)) return rv;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableCellPseudo, parentStyleContext,
|
|
PR_FALSE, getter_AddRefs(cellStyleContext));
|
|
rv = ConstructTableCellFrame(aPresContext, aContent, rowFrame, cellStyleContext,
|
|
aAbsoluteItems, ignore, cellFrame, cellBodyFrame,
|
|
aFixedItems, aTableCreator, PR_FALSE);
|
|
rowFrame->SetInitialChildList(*aPresContext, nsnull, cellFrame);
|
|
groupFrame->SetInitialChildList(*aPresContext, nsnull, rowFrame);
|
|
break;
|
|
}
|
|
default:
|
|
cellIsParent = PR_FALSE;
|
|
}
|
|
|
|
// create the outer table, inner table frames and make the cell frame the parent of the
|
|
// outer frame
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// create the outer table frame
|
|
nsIFrame* tableParent = nsnull;
|
|
nsIStyleContext* tableParentSC;
|
|
if (cellIsParent) {
|
|
tableParent = cellFrame;
|
|
tableParentSC = cellStyleContext;
|
|
} else {
|
|
tableParent = aParentFrame;
|
|
tableParentSC = parentStyleContext;
|
|
}
|
|
nsCOMPtr<nsIStyleContext> outerStyleContext;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableOuterPseudo,
|
|
tableParentSC, PR_FALSE,
|
|
getter_AddRefs(outerStyleContext));
|
|
rv = NS_NewTableOuterFrame(aOuterFrame);
|
|
if (NS_FAILED(rv)) return rv;
|
|
aOuterFrame->Init(*aPresContext, aContent, tableParent, outerStyleContext,
|
|
nsnull);
|
|
|
|
// create the inner table frame
|
|
nsCOMPtr<nsIStyleContext> innerStyleContext;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tablePseudo,
|
|
outerStyleContext, PR_FALSE,
|
|
getter_AddRefs(innerStyleContext));
|
|
rv = aTableCreator.CreateTableFrame(aInnerFrame);
|
|
if (NS_FAILED(rv)) return rv;
|
|
aInnerFrame->Init(*aPresContext, aContent, aOuterFrame, innerStyleContext,
|
|
nsnull);
|
|
//XXX duplicated call here
|
|
aOuterFrame->SetInitialChildList(*aPresContext, nsnull, aInnerFrame);
|
|
|
|
if (cellIsParent) {
|
|
cellBodyFrame->SetInitialChildList(*aPresContext, nsnull, aOuterFrame);
|
|
} else {
|
|
aNewTopFrame = aOuterFrame;
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructTableCaptionFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsIFrame*& aNewTopFrame,
|
|
nsIFrame*& aNewCaptionFrame,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator)
|
|
{
|
|
nsresult rv = NS_NewAreaFrame(aNewCaptionFrame, 0);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
const nsStyleDisplay* parentDisplay = GetDisplay(aParentFrame);
|
|
nsIFrame* innerFrame;
|
|
|
|
if (NS_STYLE_DISPLAY_TABLE == parentDisplay->mDisplay) { // parent is an outer table
|
|
// determine the inner table frame, it is either aParentFrame or its first child
|
|
nsIFrame* parFrame = aParentFrame;
|
|
aParentFrame->FirstChild(nsnull, &innerFrame);
|
|
const nsStyleDisplay* innerDisplay;
|
|
innerFrame->GetStyleData(eStyleStruct_Display, (const nsStyleStruct *&)innerDisplay);
|
|
if (NS_STYLE_DISPLAY_TABLE != innerDisplay->mDisplay) {
|
|
innerFrame = aParentFrame;
|
|
innerFrame->GetParent(&parFrame);
|
|
}
|
|
|
|
aNewCaptionFrame->Init(*aPresContext, aContent, parFrame, aStyleContext,
|
|
nsnull);
|
|
innerFrame->SetNextSibling(aNewCaptionFrame);
|
|
// the caller is responsible for calling SetInitialChildList on the outer, inner frames
|
|
aNewTopFrame = aNewCaptionFrame;
|
|
} else { // parent is not a table, need to create a new table
|
|
NS_WARNING("a non table contains a table caption child. \n");
|
|
nsIFrame* outerFrame;
|
|
ConstructAnonymousTableFrame(aPresContext, aContent, aParentFrame, aNewTopFrame,
|
|
outerFrame, innerFrame, aAbsoluteItems, aFixedItems,
|
|
aTableCreator);
|
|
nsCOMPtr<nsIStyleContext> outerStyleContext;
|
|
outerFrame->GetStyleContext(getter_AddRefs(outerStyleContext));
|
|
nsCOMPtr<nsIStyleContext> adjStyleContext;
|
|
aPresContext->ResolveStyleContextFor(aContent, outerStyleContext,
|
|
PR_FALSE, getter_AddRefs(adjStyleContext));
|
|
aNewCaptionFrame->Init(*aPresContext, aContent, outerFrame,
|
|
adjStyleContext, nsnull);
|
|
innerFrame->SetNextSibling(aNewCaptionFrame);
|
|
//XXX duplicated call here
|
|
outerFrame->SetInitialChildList(*aPresContext, nsnull, innerFrame);
|
|
}
|
|
|
|
nsFrameItems childItems;
|
|
nsAbsoluteItems floatingKids(aNewCaptionFrame);
|
|
ProcessChildren(aPresContext, aContent, aNewCaptionFrame, aAbsoluteItems,
|
|
childItems, aFixedItems, floatingKids, PR_TRUE);
|
|
aNewCaptionFrame->SetInitialChildList(*aPresContext, nsnull, childItems.childList);
|
|
if (floatingKids.childList) {
|
|
aNewCaptionFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floatingKids.childList);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
// if aParentFrame is a table, it is assummed that it is an inner table
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructTableGroupFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
PRBool aIsRowGroup,
|
|
nsIFrame*& aNewTopFrame,
|
|
nsIFrame*& aNewGroupFrame,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator,
|
|
nsTableList* aToDo)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
const nsStyleDisplay* styleDisplay = (const nsStyleDisplay*)
|
|
aStyleContext->GetStyleData(eStyleStruct_Display);
|
|
nsCOMPtr<nsIStyleContext> styleContext( dont_QueryInterface(aStyleContext) );
|
|
|
|
// TRUE if we are being called from above, FALSE if from below (e.g. row)
|
|
PRBool contentDisplayIsGroup =
|
|
(aIsRowGroup) ? (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == styleDisplay->mDisplay) ||
|
|
(NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == styleDisplay->mDisplay) ||
|
|
(NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == styleDisplay->mDisplay)
|
|
: (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP == styleDisplay->mDisplay);
|
|
if (!contentDisplayIsGroup) {
|
|
NS_ASSERTION(aToDo, "null nsTableList when constructing from below");
|
|
}
|
|
|
|
nsCOMPtr<nsIStyleContext> parentStyleContext;
|
|
aParentFrame->GetStyleContext(getter_AddRefs(parentStyleContext));
|
|
const nsStyleDisplay* parentDisplay =
|
|
(const nsStyleDisplay*) parentStyleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
if (NS_STYLE_DISPLAY_TABLE == parentDisplay->mDisplay) { // parent is an inner table
|
|
if (!contentDisplayIsGroup) { // called from row below
|
|
nsIAtom* pseudoGroup = (aIsRowGroup) ? nsHTMLAtoms::tableRowGroupPseudo : nsHTMLAtoms::tableColGroupPseudo;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, pseudoGroup, parentStyleContext,
|
|
PR_FALSE, getter_AddRefs(styleContext));
|
|
}
|
|
// only process the group's children if we're called from above
|
|
rv = ConstructTableGroupFrameOnly(aPresContext, aContent, aParentFrame, styleContext,
|
|
aAbsoluteItems, aIsRowGroup, aNewTopFrame, aNewGroupFrame,
|
|
aFixedItems, aTableCreator, contentDisplayIsGroup);
|
|
} else { // construct anonymous frames
|
|
NS_WARNING("a non table contains a table row or col group child. \n");
|
|
nsIFrame* innerFrame;
|
|
nsIFrame* outerFrame;
|
|
|
|
ConstructAnonymousTableFrame(aPresContext, aContent, aParentFrame, aNewTopFrame, outerFrame,
|
|
innerFrame, aAbsoluteItems, aFixedItems, aTableCreator);
|
|
nsCOMPtr<nsIStyleContext> innerStyleContext;
|
|
innerFrame->GetStyleContext(getter_AddRefs(innerStyleContext));
|
|
if (contentDisplayIsGroup) { // called from above
|
|
aPresContext->ResolveStyleContextFor(aContent, innerStyleContext, PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
} else { // called from row below
|
|
nsIAtom* pseudoGroup = (aIsRowGroup) ? nsHTMLAtoms::tableRowGroupPseudo : nsHTMLAtoms::tableColGroupPseudo;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, pseudoGroup, innerStyleContext,
|
|
PR_FALSE, getter_AddRefs(styleContext));
|
|
}
|
|
nsIFrame* topFrame;
|
|
// only process the group's children if we're called from above
|
|
rv = ConstructTableGroupFrameOnly(aPresContext, aContent, innerFrame, styleContext,
|
|
aAbsoluteItems, aIsRowGroup, topFrame, aNewGroupFrame,
|
|
aFixedItems, aTableCreator, contentDisplayIsGroup);
|
|
if (NS_FAILED(rv)) return rv;
|
|
if (contentDisplayIsGroup) { // called from above
|
|
innerFrame->SetInitialChildList(*aPresContext, nsnull, topFrame);
|
|
} else { // called from row below
|
|
aToDo->Set(innerFrame, topFrame);
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructTableGroupFrameOnly(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
PRBool aIsRowGroup,
|
|
nsIFrame*& aNewTopFrame,
|
|
nsIFrame*& aNewGroupFrame,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator,
|
|
PRBool aProcessChildren)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
const nsStyleDisplay* styleDisplay =
|
|
(const nsStyleDisplay*) aStyleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
if (IsScrollable(aPresContext, styleDisplay)) {
|
|
// Create a scroll frame and initialize it
|
|
rv = NS_NewScrollFrame(aNewTopFrame);
|
|
if (NS_FAILED(rv)) return rv;
|
|
aNewTopFrame->Init(*aPresContext, aContent, aParentFrame, aStyleContext, nsnull);
|
|
|
|
// The scroll frame gets the original style context, the scrolled frame gets
|
|
// a pseudo element style context that inherits the background properties
|
|
nsCOMPtr<nsIStyleContext> scrolledPseudoStyle;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::scrolledContentPseudo,
|
|
aStyleContext, PR_FALSE,
|
|
getter_AddRefs(scrolledPseudoStyle));
|
|
|
|
// Create an area container for the frame
|
|
rv = (aIsRowGroup) ? aTableCreator.CreateTableRowGroupFrame(aNewGroupFrame)
|
|
: aTableCreator.CreateTableColGroupFrame(aNewGroupFrame);
|
|
if (NS_FAILED(rv)) return rv;
|
|
// Initialize the frame and force it to have a view
|
|
aNewGroupFrame->Init(*aPresContext, aContent, aNewTopFrame, scrolledPseudoStyle,
|
|
nsnull);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, aNewGroupFrame,
|
|
scrolledPseudoStyle, PR_TRUE);
|
|
aNewTopFrame->SetInitialChildList(*aPresContext, nsnull, aNewGroupFrame);
|
|
} else {
|
|
rv = (aIsRowGroup) ? aTableCreator.CreateTableRowGroupFrame(aNewTopFrame)
|
|
: aTableCreator.CreateTableColGroupFrame(aNewTopFrame);
|
|
if (NS_FAILED(rv)) return rv;
|
|
aNewTopFrame->Init(*aPresContext, aContent, aParentFrame, aStyleContext,
|
|
nsnull);
|
|
aNewGroupFrame = aNewTopFrame;
|
|
}
|
|
|
|
if (aProcessChildren) {
|
|
nsFrameItems childItems;
|
|
if (aIsRowGroup) {
|
|
TableProcessChildren(aPresContext, aContent, aNewGroupFrame, aAbsoluteItems,
|
|
childItems, aFixedItems, aTableCreator);
|
|
} else {
|
|
nsAbsoluteItems floatingKids(nsnull);
|
|
ProcessChildren(aPresContext, aContent, aNewGroupFrame, aAbsoluteItems,
|
|
childItems, aFixedItems, floatingKids);
|
|
NS_ASSERTION(nsnull == floatingKids.childList, "floater in odd spot");
|
|
}
|
|
aNewGroupFrame->SetInitialChildList(*aPresContext, nsnull, childItems.childList);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructTableRowFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsIFrame*& aNewTopFrame,
|
|
nsIFrame*& aNewRowFrame,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator,
|
|
nsTableList* aToDo)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
const nsStyleDisplay* display = (const nsStyleDisplay*)
|
|
aStyleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
// TRUE if we are being called from above, FALSE if from below (e.g. cell)
|
|
PRBool contentDisplayIsRow = (NS_STYLE_DISPLAY_TABLE_ROW == display->mDisplay);
|
|
if (!contentDisplayIsRow) {
|
|
NS_ASSERTION(aToDo, "null nsTableList when constructing from below");
|
|
}
|
|
|
|
nsCOMPtr<nsIStyleContext> groupStyleContext;
|
|
nsCOMPtr<nsIStyleContext> styleContext( dont_QueryInterface(aStyleContext) );
|
|
|
|
const nsStyleDisplay* parentDisplay = GetDisplay(aParentFrame);
|
|
if ((NS_STYLE_DISPLAY_TABLE_ROW_GROUP == parentDisplay->mDisplay) ||
|
|
(NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == parentDisplay->mDisplay) ||
|
|
(NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == parentDisplay->mDisplay)) {
|
|
if (!contentDisplayIsRow) { // content is from some (soon to be) child of ours
|
|
aParentFrame = TableGetAsNonScrollFrame(aPresContext, aParentFrame, parentDisplay);
|
|
aParentFrame->GetStyleContext(getter_AddRefs(groupStyleContext));
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableRowPseudo,
|
|
groupStyleContext, PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
}
|
|
// only process the row's children if we're called from above
|
|
rv = ConstructTableRowFrameOnly(aPresContext, aContent, aParentFrame, styleContext,
|
|
aAbsoluteItems, contentDisplayIsRow, aNewRowFrame,
|
|
aFixedItems, aTableCreator);
|
|
aNewTopFrame = aNewRowFrame;
|
|
} else { // construct an anonymous row group frame
|
|
nsIFrame* groupFrame;
|
|
nsTableList localToDo;
|
|
nsTableList* toDo = (aToDo) ? aToDo : &localToDo;
|
|
|
|
// it may also need to create a table frame
|
|
rv = ConstructTableGroupFrame(aPresContext, aContent, aParentFrame, styleContext,
|
|
aAbsoluteItems, PR_TRUE, aNewTopFrame, groupFrame,
|
|
aFixedItems, aTableCreator, toDo);
|
|
if (NS_FAILED(rv)) return rv;
|
|
groupFrame->GetStyleContext(getter_AddRefs(groupStyleContext));
|
|
if (contentDisplayIsRow) { // called from above
|
|
aPresContext->ResolveStyleContextFor(aContent, groupStyleContext,
|
|
PR_FALSE, getter_AddRefs(styleContext));
|
|
} else { // called from cell below
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableRowPseudo,
|
|
groupStyleContext, PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
}
|
|
// only process the row's children if we're called from above
|
|
rv = ConstructTableRowFrameOnly(aPresContext, aContent, groupFrame, styleContext,
|
|
aAbsoluteItems, contentDisplayIsRow, aNewRowFrame,
|
|
aFixedItems, aTableCreator);
|
|
if (NS_FAILED(rv)) return rv;
|
|
groupFrame->SetInitialChildList(*aPresContext, nsnull, aNewRowFrame);
|
|
if (contentDisplayIsRow) { // called from above
|
|
TableProcessTableList(aPresContext, *toDo);
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructTableRowFrameOnly(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
PRBool aProcessChildren,
|
|
nsIFrame*& aNewRowFrame,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator)
|
|
{
|
|
nsresult rv = aTableCreator.CreateTableRowFrame(aNewRowFrame);
|
|
if (NS_FAILED(rv)) return rv;
|
|
aNewRowFrame->Init(*aPresContext, aContent, aParentFrame, aStyleContext,
|
|
nsnull);
|
|
if (aProcessChildren) {
|
|
nsFrameItems childItems;
|
|
rv = TableProcessChildren(aPresContext, aContent, aNewRowFrame, aAbsoluteItems,
|
|
childItems, aFixedItems, aTableCreator);
|
|
if (NS_FAILED(rv)) return rv;
|
|
aNewRowFrame->SetInitialChildList(*aPresContext, nsnull, childItems.childList);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructTableColFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsIFrame*& aNewTopFrame,
|
|
nsIFrame*& aNewColFrame,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
// the content display here is always table-col and were always called from above
|
|
const nsStyleDisplay* parentDisplay = GetDisplay(aParentFrame);
|
|
if (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP == parentDisplay->mDisplay) {
|
|
rv = ConstructTableColFrameOnly(aPresContext, aContent, aParentFrame,
|
|
aStyleContext, aAbsoluteItems, aNewColFrame,
|
|
aFixedItems, aTableCreator);
|
|
aNewTopFrame = aNewColFrame;
|
|
} else { // construct anonymous col group frame
|
|
nsTableList toDo;
|
|
nsIFrame* groupFrame;
|
|
rv = ConstructTableGroupFrame(aPresContext, aContent, aParentFrame, aStyleContext,
|
|
aAbsoluteItems, PR_FALSE, aNewTopFrame,
|
|
groupFrame, aFixedItems, aTableCreator, &toDo);
|
|
if (NS_FAILED(rv)) return rv;
|
|
nsCOMPtr<nsIStyleContext> groupStyleContext;
|
|
groupFrame->GetStyleContext(getter_AddRefs(groupStyleContext));
|
|
nsCOMPtr<nsIStyleContext> styleContext;
|
|
aPresContext->ResolveStyleContextFor(aContent, groupStyleContext,
|
|
PR_FALSE, getter_AddRefs(styleContext));
|
|
rv = ConstructTableColFrameOnly(aPresContext, aContent, groupFrame,
|
|
styleContext, aAbsoluteItems, aNewColFrame,
|
|
aFixedItems, aTableCreator);
|
|
if (NS_FAILED(rv)) return rv;
|
|
groupFrame->SetInitialChildList(*aPresContext, nsnull, aNewColFrame);
|
|
|
|
// if an anoymous table got created, then set its initial child list
|
|
TableProcessTableList(aPresContext, toDo);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructTableColFrameOnly(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsIFrame*& aNewColFrame,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator)
|
|
{
|
|
nsresult rv = aTableCreator.CreateTableColFrame(aNewColFrame);
|
|
if (NS_FAILED(rv)) return rv;
|
|
aNewColFrame->Init(*aPresContext, aContent, aParentFrame,
|
|
aStyleContext, nsnull);
|
|
nsFrameItems colChildItems;
|
|
nsAbsoluteItems floatingKids(nsnull);
|
|
rv = ProcessChildren(aPresContext, aContent, aNewColFrame, aAbsoluteItems,
|
|
colChildItems, aFixedItems, floatingKids);
|
|
NS_ASSERTION(nsnull == floatingKids.childList, "floater in odd spot");
|
|
if (NS_FAILED(rv)) return rv;
|
|
aNewColFrame->SetInitialChildList(*aPresContext, nsnull,
|
|
colChildItems.childList);
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructTableCellFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsIFrame*& aNewTopFrame,
|
|
nsIFrame*& aNewCellFrame,
|
|
nsIFrame*& aNewCellBodyFrame,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator,
|
|
PRBool aProcessChildren)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
|
|
const nsStyleDisplay* display = (const nsStyleDisplay*)
|
|
aStyleContext->GetStyleData(eStyleStruct_Display);
|
|
// FALSE if we are being called to wrap a cell around the content
|
|
PRBool contentDisplayIsCell = (NS_STYLE_DISPLAY_TABLE_CELL == display->mDisplay);
|
|
|
|
nsCOMPtr<nsIStyleContext> parentStyleContext;
|
|
aParentFrame->GetStyleContext(getter_AddRefs(parentStyleContext));
|
|
const nsStyleDisplay* parentDisplay = (const nsStyleDisplay*)
|
|
parentStyleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
nsCOMPtr<nsIStyleContext> styleContext( dont_QueryInterface(aStyleContext) );
|
|
PRBool wrapContent = PR_FALSE;
|
|
|
|
if (NS_STYLE_DISPLAY_TABLE_ROW == parentDisplay->mDisplay) {
|
|
nsCOMPtr<nsIStyleContext> styleContextRelease;
|
|
if (!contentDisplayIsCell) { // need to wrap
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableCellPseudo,
|
|
parentStyleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
wrapContent = PR_TRUE;
|
|
}
|
|
rv = ConstructTableCellFrameOnly(aPresContext, aContent, aParentFrame, styleContext,
|
|
aAbsoluteItems, aNewCellFrame, aNewCellBodyFrame,
|
|
aFixedItems, aTableCreator, aProcessChildren);
|
|
aNewTopFrame = aNewCellFrame;
|
|
} else { // the cell needs some ancestors to be fabricated
|
|
NS_WARNING("WARNING - a non table row contains a table cell child. \n");
|
|
nsTableList toDo;
|
|
nsIFrame* rowFrame;
|
|
rv = ConstructTableRowFrame(aPresContext, aContent, aParentFrame, aStyleContext,
|
|
aAbsoluteItems, aNewTopFrame, rowFrame, aFixedItems,
|
|
aTableCreator, &toDo);
|
|
if (NS_FAILED(rv)) return rv;
|
|
nsCOMPtr<nsIStyleContext> rowStyleContext;
|
|
rowFrame->GetStyleContext(getter_AddRefs(rowStyleContext));
|
|
if (contentDisplayIsCell) {
|
|
aPresContext->ResolveStyleContextFor(aContent, rowStyleContext,
|
|
PR_FALSE, getter_AddRefs(styleContext));
|
|
} else {
|
|
wrapContent = PR_TRUE; // XXX
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::tableCellPseudo,
|
|
rowStyleContext, PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
}
|
|
rv = ConstructTableCellFrameOnly(aPresContext, aContent, rowFrame, styleContext,
|
|
aAbsoluteItems, aNewCellFrame, aNewCellBodyFrame,
|
|
aFixedItems, aTableCreator, aProcessChildren);
|
|
if (NS_FAILED(rv)) return rv;
|
|
rowFrame->SetInitialChildList(*aPresContext, nsnull, aNewCellFrame);
|
|
TableProcessTableList(aPresContext, toDo);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructTableCellFrameOnly(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsIFrame*& aNewCellFrame,
|
|
nsIFrame*& aNewCellBodyFrame,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator,
|
|
PRBool aProcessChildren)
|
|
{
|
|
nsresult rv;
|
|
|
|
// Create a table cell frame
|
|
rv = aTableCreator.CreateTableCellFrame(aNewCellFrame);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
// Initialize the table cell frame
|
|
aNewCellFrame->Init(*aPresContext, aContent, aParentFrame, aStyleContext,
|
|
nsnull);
|
|
|
|
// Create an area frame that will format the cell's content
|
|
rv = NS_NewAreaFrame(aNewCellBodyFrame, 0);
|
|
if (NS_FAILED(rv)) {
|
|
aNewCellFrame->DeleteFrame(*aPresContext);
|
|
aNewCellFrame = nsnull;
|
|
return rv;
|
|
}
|
|
|
|
// Resolve pseudo style and initialize the body cell frame
|
|
nsCOMPtr<nsIStyleContext> bodyPseudoStyle;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::cellContentPseudo,
|
|
aStyleContext, PR_FALSE,
|
|
getter_AddRefs(bodyPseudoStyle));
|
|
aNewCellBodyFrame->Init(*aPresContext, aContent, aNewCellFrame,
|
|
bodyPseudoStyle, nsnull);
|
|
|
|
if (aProcessChildren) {
|
|
nsFrameItems childItems;
|
|
nsAbsoluteItems floaterList(aNewCellBodyFrame);
|
|
rv = ProcessChildren(aPresContext, aContent, aNewCellBodyFrame, aAbsoluteItems,
|
|
childItems, aFixedItems, floaterList, PR_TRUE);
|
|
if (NS_FAILED(rv)) return rv;
|
|
aNewCellBodyFrame->SetInitialChildList(*aPresContext, nsnull, childItems.childList);
|
|
if (floaterList.childList) {
|
|
aNewCellBodyFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
}
|
|
aNewCellFrame->SetInitialChildList(*aPresContext, nsnull, aNewCellBodyFrame);
|
|
|
|
return rv;
|
|
}
|
|
|
|
// This is only called by table row groups and rows. It allows children that are not
|
|
// table related to have a cell wrapped around them.
|
|
nsresult
|
|
nsCSSFrameConstructor::TableProcessChildren(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsFrameItems& aChildItems,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
|
|
// Iterate the child content objects and construct a frame
|
|
PRInt32 count;
|
|
|
|
nsCOMPtr<nsIStyleContext> parentStyleContext;
|
|
aParentFrame->GetStyleContext(getter_AddRefs(parentStyleContext));
|
|
|
|
aContent->ChildCount(count);
|
|
for (PRInt32 i = 0; i < count; i++) {
|
|
nsCOMPtr<nsIContent> childContent;
|
|
|
|
aContent->ChildAt(i, *getter_AddRefs(childContent));
|
|
rv = TableProcessChild(aPresContext, childContent, aParentFrame, parentStyleContext,
|
|
aAbsoluteItems, aChildItems, aFixedItems, aTableCreator);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::TableProcessChild(nsIPresContext* aPresContext,
|
|
nsIContent* aChildContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aParentStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsFrameItems& aChildItems,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsTableCreator& aTableCreator)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
|
|
if (nsnull != aChildContent) {
|
|
nsCOMPtr<nsIStyleContext> childStyleContext;
|
|
aPresContext->ResolveStyleContextFor(aChildContent, aParentStyleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(childStyleContext));
|
|
const nsStyleDisplay* childDisplay = (const nsStyleDisplay*)
|
|
childStyleContext->GetStyleData(eStyleStruct_Display);
|
|
if ( (childDisplay->mDisplay == NS_STYLE_DISPLAY_TABLE) ||
|
|
(childDisplay->mDisplay == NS_STYLE_DISPLAY_TABLE_HEADER_GROUP) ||
|
|
(childDisplay->mDisplay == NS_STYLE_DISPLAY_TABLE_ROW_GROUP) ||
|
|
(childDisplay->mDisplay == NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP) ||
|
|
(childDisplay->mDisplay == NS_STYLE_DISPLAY_TABLE_ROW) ||
|
|
(childDisplay->mDisplay == NS_STYLE_DISPLAY_TABLE_COLUMN) ||
|
|
(childDisplay->mDisplay == NS_STYLE_DISPLAY_TABLE_CELL) ) {
|
|
nsAbsoluteItems floaterList(nsnull);
|
|
rv = ConstructFrame(aPresContext, aChildContent, aParentFrame,
|
|
aAbsoluteItems, aChildItems, aFixedItems,
|
|
floaterList, PR_FALSE);
|
|
NS_ASSERTION(nsnull == floaterList.childList, "floater in odd spot");
|
|
} else {
|
|
nsCOMPtr<nsIAtom> tag;
|
|
aChildContent->GetTag(*getter_AddRefs(tag));
|
|
|
|
// XXX this needs to be fixed so that the form can work without
|
|
// a frame. This is *disgusting*
|
|
|
|
// forms, form controls need a frame but it can't be a child of an inner table
|
|
nsIFormControl* formControl = nsnull;
|
|
nsresult fcResult = aChildContent->QueryInterface(kIFormControlIID, (void**)&formControl);
|
|
NS_IF_RELEASE(formControl);
|
|
if ((nsHTMLAtoms::form == tag.get()) || NS_SUCCEEDED(fcResult)) {
|
|
// if the parent is a table, put the form in the outer table frame
|
|
const nsStyleDisplay* parentDisplay = (const nsStyleDisplay*)
|
|
aParentStyleContext->GetStyleData(eStyleStruct_Display);
|
|
nsAbsoluteItems floaterList(nsnull);
|
|
if (parentDisplay->mDisplay == NS_STYLE_DISPLAY_TABLE) {
|
|
nsIFrame* outerFrame;
|
|
aParentFrame->GetParent(&outerFrame);
|
|
rv = ConstructFrame(aPresContext, aChildContent, outerFrame,
|
|
aAbsoluteItems, aChildItems, aFixedItems,
|
|
floaterList, PR_FALSE);
|
|
// XXX: Seems like this is going into the inner frame's child list instead of the outer frame. - DWH
|
|
} else {
|
|
rv = ConstructFrame(aPresContext, aChildContent, aParentFrame,
|
|
aAbsoluteItems, aChildItems, aFixedItems,
|
|
floaterList, PR_FALSE);
|
|
}
|
|
NS_ASSERTION(nsnull == floaterList.childList, "floater in odd spot");
|
|
// wrap it in a table cell, row, row group, table if it is a valid tag or display
|
|
// and not whitespace. For example we don't allow map, head, body, etc.
|
|
} else {
|
|
if (TableIsValidCellContent(aPresContext, aParentFrame, aChildContent)) {
|
|
PRBool needCell = PR_TRUE;
|
|
nsIDOMCharacterData* domData = nsnull;
|
|
nsresult rv2 = aChildContent->QueryInterface(kIDOMCharacterDataIID, (void**)&domData);
|
|
if ((NS_OK == rv2) && (nsnull != domData)) {
|
|
nsString charData;
|
|
domData->GetData(charData);
|
|
charData = charData.StripWhitespace();
|
|
if ((charData.Length() <= 0) && (charData != " ")) { // XXX check this
|
|
needCell = PR_FALSE; // only contains whitespace, don't create cell
|
|
}
|
|
NS_RELEASE(domData);
|
|
}
|
|
if (needCell) {
|
|
nsIFrame* cellBodyFrame;
|
|
nsIFrame* cellFrame;
|
|
nsIFrame* childFrame; // XXX: Need to change the ConstructTableCell function to return lists of frames. - DWH
|
|
rv = ConstructTableCellFrame(aPresContext, aChildContent, aParentFrame, childStyleContext,
|
|
aAbsoluteItems, childFrame, cellFrame, cellBodyFrame,
|
|
aFixedItems, aTableCreator);
|
|
aChildItems.AddChild(childFrame);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
PRBool
|
|
nsCSSFrameConstructor::TableIsValidCellContent(nsIPresContext* aPresContext,
|
|
nsIFrame* aParentFrame,
|
|
nsIContent* aContent)
|
|
{
|
|
nsCOMPtr<nsIAtom> tag;
|
|
aContent->GetTag(*getter_AddRefs(tag));
|
|
|
|
nsCOMPtr<nsIStyleContext> styleContext;
|
|
|
|
nsresult rv = ResolveStyleContext(aPresContext, aParentFrame, aContent, tag, getter_AddRefs(styleContext));
|
|
if (NS_FAILED(rv)) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
const nsStyleDisplay* display = (const nsStyleDisplay*)
|
|
styleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
if (NS_STYLE_DISPLAY_NONE != display->mDisplay) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// check tags first
|
|
if ( (nsHTMLAtoms::img == tag.get()) ||
|
|
(nsHTMLAtoms::hr == tag.get()) ||
|
|
(nsHTMLAtoms::br == tag.get()) ||
|
|
(nsHTMLAtoms::wbr == tag.get()) ||
|
|
(nsHTMLAtoms::input == tag.get()) ||
|
|
(nsHTMLAtoms::textarea == tag.get()) ||
|
|
(nsHTMLAtoms::select == tag.get()) ||
|
|
(nsHTMLAtoms::applet == tag.get()) ||
|
|
(nsHTMLAtoms::embed == tag.get()) ||
|
|
(nsHTMLAtoms::fieldset == tag.get()) ||
|
|
(nsHTMLAtoms::legend == tag.get()) ||
|
|
(nsHTMLAtoms::object == tag.get()) ||
|
|
(nsHTMLAtoms::form == tag.get()) ||
|
|
(nsHTMLAtoms::iframe == tag.get()) ||
|
|
(nsHTMLAtoms::spacer == tag.get()) ||
|
|
(nsHTMLAtoms::button == tag.get()) ||
|
|
(nsHTMLAtoms::label == tag.get() )) {
|
|
return PR_TRUE;
|
|
}
|
|
|
|
#ifdef INCLUDE_XUL
|
|
if ( (nsXULAtoms::button == tag.get()) ||
|
|
(nsXULAtoms::titledbutton == tag.get()) ||
|
|
(nsXULAtoms::checkbox == tag.get()) ||
|
|
(nsXULAtoms::tristatecheckbox == tag.get()) ||
|
|
(nsXULAtoms::slider == tag.get()) ||
|
|
(nsXULAtoms::spinner == tag.get()) ||
|
|
(nsXULAtoms::scrollbar == tag.get()) ||
|
|
(nsXULAtoms::colorpicker == tag.get()) ||
|
|
(nsXULAtoms::fontpicker == tag.get()) ||
|
|
(nsXULAtoms::radio == tag.get()) ||
|
|
(nsXULAtoms::text == tag.get()) ||
|
|
(nsXULAtoms::widget == tag.get()) ||
|
|
(nsXULAtoms::tree == tag.get()) ||
|
|
(nsXULAtoms::treechildren == tag.get()) ||
|
|
(nsXULAtoms::treeitem == tag.get()) ||
|
|
(nsXULAtoms::treecell == tag.get()) ||
|
|
(nsXULAtoms::treeindentation == tag.get()) ||
|
|
(nsXULAtoms::toolbox == tag.get()) ||
|
|
(nsXULAtoms::toolbar == tag.get()) ||
|
|
(nsXULAtoms::deck == tag.get()) ||
|
|
(nsXULAtoms::tabcontrol == tag.get()) ||
|
|
(nsXULAtoms::tabbox == tag.get()) ||
|
|
(nsXULAtoms::tabpanel == tag.get()) ||
|
|
(nsXULAtoms::tabpage == tag.get()) ||
|
|
(nsXULAtoms::progressmeter == tag.get() )) {
|
|
return PR_TRUE;
|
|
}
|
|
#endif
|
|
|
|
// we should check for display type as well - later
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::TableProcessTableList(nsIPresContext* aPresContext,
|
|
nsTableList& aTableList)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
nsIFrame* inner = (nsIFrame*)aTableList.mInner;
|
|
if (inner) {
|
|
nsIFrame* child = (nsIFrame*)aTableList.mChild;
|
|
rv = inner->SetInitialChildList(*aPresContext, nsnull, child);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
nsIFrame*
|
|
nsCSSFrameConstructor::TableGetAsNonScrollFrame(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame,
|
|
const nsStyleDisplay* aDisplay)
|
|
{
|
|
if (nsnull == aFrame) {
|
|
return nsnull;
|
|
}
|
|
nsIFrame* result = aFrame;
|
|
if (IsScrollable(aPresContext, aDisplay)) {
|
|
aFrame->FirstChild(nsnull, &result);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// nsIAtom* pseudoTag;
|
|
// styleContext->GetPseudoType(pseudoTag);
|
|
// if (pseudoTag != nsHTMLAtoms::scrolledContentPseudo) {
|
|
// NS_IF_RELEASE(pseudoTag);
|
|
|
|
const nsStyleDisplay*
|
|
nsCSSFrameConstructor:: GetDisplay(nsIFrame* aFrame)
|
|
{
|
|
if (nsnull == aFrame) {
|
|
return nsnull;
|
|
}
|
|
nsCOMPtr<nsIStyleContext> styleContext;
|
|
aFrame->GetStyleContext(getter_AddRefs(styleContext));
|
|
const nsStyleDisplay* display =
|
|
(const nsStyleDisplay*)styleContext->GetStyleData(eStyleStruct_Display);
|
|
return display;
|
|
}
|
|
|
|
/***********************************************
|
|
* END TABLE SECTION
|
|
***********************************************/
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructDocElementFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aDocElement,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aParentStyleContext,
|
|
nsIFrame*& aNewFrame,
|
|
nsAbsoluteItems& aFixedItems)
|
|
{
|
|
// Resolve the style context for the document element
|
|
nsCOMPtr<nsIStyleContext> styleContext;
|
|
aPresContext->ResolveStyleContextFor(aDocElement, aParentStyleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
|
|
// See if we're paginated
|
|
PRBool isPaginated;
|
|
aPresContext->IsPaginated(&isPaginated);
|
|
if (isPaginated) {
|
|
// Create an area frame for the document element
|
|
nsIFrame* areaFrame;
|
|
|
|
NS_NewAreaFrame(areaFrame, 0);
|
|
areaFrame->Init(*aPresContext, aDocElement, aParentFrame, styleContext, nsnull);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, areaFrame,
|
|
styleContext, PR_FALSE);
|
|
|
|
// The area frame is the "initial containing block"
|
|
mInitialContainingBlock = areaFrame;
|
|
|
|
// Process the child content
|
|
nsAbsoluteItems absoluteItems(areaFrame);
|
|
nsAbsoluteItems floaterList(areaFrame);
|
|
nsFrameItems childItems;
|
|
|
|
ProcessChildren(aPresContext, aDocElement, areaFrame, absoluteItems,
|
|
childItems, aFixedItems, floaterList, PR_TRUE);
|
|
|
|
// Set the initial child lists
|
|
areaFrame->SetInitialChildList(*aPresContext, nsnull,
|
|
childItems.childList);
|
|
if (nsnull != absoluteItems.childList) {
|
|
areaFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::absoluteList,
|
|
absoluteItems.childList);
|
|
}
|
|
if (floaterList.childList) {
|
|
areaFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
|
|
// Return the area frame
|
|
aNewFrame = areaFrame;
|
|
|
|
} else {
|
|
// Unless the 'overflow' policy forbids scrolling, wrap the frame in a
|
|
// scroll frame.
|
|
nsIFrame* scrollFrame = nsnull;
|
|
|
|
const nsStyleDisplay* display = (const nsStyleDisplay*)
|
|
styleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
if (IsScrollable(aPresContext, display)) {
|
|
NS_NewScrollFrame(scrollFrame);
|
|
scrollFrame->Init(*aPresContext, aDocElement, aParentFrame, styleContext,
|
|
nsnull);
|
|
|
|
// The scrolled frame gets a pseudo element style context
|
|
nsCOMPtr<nsIStyleContext> scrolledPseudoStyle;
|
|
aPresContext->ResolvePseudoStyleContextFor(nsnull,
|
|
nsHTMLAtoms::scrolledContentPseudo,
|
|
styleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(scrolledPseudoStyle));
|
|
styleContext = scrolledPseudoStyle;
|
|
}
|
|
|
|
// Create an area frame for the document element. This serves as the
|
|
// "initial containing block"
|
|
nsIFrame* areaFrame;
|
|
|
|
// XXX Until we clean up how painting damage is handled, we need to use the
|
|
// flag that says that this is the body...
|
|
NS_NewAreaFrame(areaFrame, NS_BLOCK_DOCUMENT_ROOT|NS_BLOCK_MARGIN_ROOT);
|
|
areaFrame->Init(*aPresContext, aDocElement, scrollFrame ? scrollFrame :
|
|
aParentFrame, styleContext, nsnull);
|
|
if (scrollFrame) {
|
|
// If the document element is scrollable, then it needs a view. Otherwise,
|
|
// don't bother, because the root frame has a view and the extra view is
|
|
// just overhead we don't need
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, areaFrame,
|
|
styleContext, PR_FALSE);
|
|
}
|
|
|
|
// The area frame is the "initial containing block"
|
|
mInitialContainingBlock = areaFrame;
|
|
|
|
// Process the child content
|
|
nsAbsoluteItems absoluteItems(areaFrame);
|
|
nsAbsoluteItems floatingItems(areaFrame);
|
|
nsFrameItems childItems;
|
|
|
|
ProcessChildren(aPresContext, aDocElement, areaFrame, absoluteItems,
|
|
childItems, aFixedItems, floatingItems, PR_TRUE);
|
|
|
|
// See if the document element has a fixed background attachment.
|
|
// Note: the reason we wait until after processing the document element's
|
|
// children is because of special treatment of the background for the HTML
|
|
// element. See BodyFixupRule::MapStyleInto() for details
|
|
const nsStyleColor* color;
|
|
color = (const nsStyleColor*)styleContext->GetStyleData(eStyleStruct_Color);
|
|
if (NS_STYLE_BG_ATTACHMENT_FIXED == color->mBackgroundAttachment) {
|
|
// Fixed background attachments are handled by setting the
|
|
// NS_VIEW_PUBLIC_FLAG_DONT_BITBLT flag bit on the view.
|
|
//
|
|
// If the document element's frame is scrollable, then set the bit on its
|
|
// view; otherwise, set it on the root frame's view. This avoids
|
|
// unnecessarily creating another view and should be faster
|
|
nsIView* view;
|
|
|
|
if (scrollFrame) {
|
|
areaFrame->GetView(&view);
|
|
} else {
|
|
nsIFrame* parentFrame;
|
|
|
|
areaFrame->GetParent(&parentFrame);
|
|
parentFrame->GetView(&view);
|
|
}
|
|
|
|
NS_ASSERTION(view, "expected a view");
|
|
PRUint32 viewFlags;
|
|
view->GetViewFlags(&viewFlags);
|
|
view->SetViewFlags(viewFlags | NS_VIEW_PUBLIC_FLAG_DONT_BITBLT);
|
|
}
|
|
|
|
// Set the initial child lists
|
|
areaFrame->SetInitialChildList(*aPresContext, nsnull,
|
|
childItems.childList);
|
|
if (nsnull != absoluteItems.childList) {
|
|
areaFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::absoluteList,
|
|
absoluteItems.childList);
|
|
}
|
|
if (nsnull != floatingItems.childList) {
|
|
areaFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floatingItems.childList);
|
|
}
|
|
if (nsnull != scrollFrame) {
|
|
scrollFrame->SetInitialChildList(*aPresContext, nsnull, areaFrame);
|
|
}
|
|
|
|
aNewFrame = scrollFrame ? scrollFrame : areaFrame;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::ConstructRootFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aDocElement,
|
|
nsIFrame*& aNewFrame)
|
|
{
|
|
#ifdef NS_DEBUG
|
|
nsCOMPtr<nsIDocument> doc;
|
|
nsIContent* rootContent;
|
|
|
|
// Verify that the content object is really the root content object
|
|
aDocElement->GetDocument(*getter_AddRefs(doc));
|
|
rootContent = doc->GetRootContent();
|
|
NS_ASSERTION(rootContent == aDocElement, "unexpected content");
|
|
NS_RELEASE(rootContent);
|
|
#endif
|
|
|
|
nsIFrame* viewportFrame;
|
|
nsCOMPtr<nsIStyleContext> viewportPseudoStyle;
|
|
|
|
// Create the viewport frame
|
|
NS_NewViewportFrame(viewportFrame);
|
|
|
|
// Create a pseudo element style context
|
|
aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::viewportPseudo,
|
|
nsnull, PR_FALSE,
|
|
getter_AddRefs(viewportPseudoStyle));
|
|
|
|
// Initialize the viewport frame. It has a NULL content object
|
|
viewportFrame->Init(*aPresContext, nsnull, nsnull, viewportPseudoStyle, nsnull);
|
|
|
|
// Bind the viewport frame to the root view
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
aPresContext->GetShell(getter_AddRefs(presShell));
|
|
nsCOMPtr<nsIViewManager> viewManager;
|
|
presShell->GetViewManager(getter_AddRefs(viewManager));
|
|
nsIView* rootView;
|
|
|
|
viewManager->GetRootView(rootView);
|
|
viewportFrame->SetView(rootView);
|
|
|
|
// If the device supports scrolling (e.g., in galley mode on the screen and
|
|
// for print-preview, but not when printing), then create a scroll frame that
|
|
// will act as the scrolling mechanism for the viewport.
|
|
// XXX Do we even need a viewport when printing to a printer?
|
|
// XXX It would be nice to have a better way to query for whether the device
|
|
// is scrollable
|
|
PRBool isScrollable = PR_TRUE;
|
|
if (aPresContext) {
|
|
nsIDeviceContext* dc;
|
|
aPresContext->GetDeviceContext(&dc);
|
|
if (dc) {
|
|
PRBool supportsWidgets;
|
|
if (NS_SUCCEEDED(dc->SupportsNativeWidgets(supportsWidgets))) {
|
|
isScrollable = supportsWidgets;
|
|
}
|
|
NS_RELEASE(dc);
|
|
}
|
|
}
|
|
|
|
// As long as the webshell doesn't prohibit it, and the device supports
|
|
// it, create a scroll frame that will act as the scolling mechanism for
|
|
// the viewport.
|
|
nsISupports* container;
|
|
if (nsnull != aPresContext) {
|
|
aPresContext->GetContainer(&container);
|
|
if (nsnull != container) {
|
|
nsIWebShell* webShell = nsnull;
|
|
container->QueryInterface(kIWebShellIID, (void**) &webShell);
|
|
if (nsnull != webShell) {
|
|
PRInt32 scrolling = -1;
|
|
webShell->GetScrolling(scrolling);
|
|
if (NS_STYLE_OVERFLOW_HIDDEN == scrolling) {
|
|
isScrollable = PR_FALSE;
|
|
}
|
|
NS_RELEASE(webShell);
|
|
}
|
|
NS_RELEASE(container);
|
|
}
|
|
}
|
|
|
|
// If the viewport should offer a scrolling mechanism, then create a
|
|
// scroll frame
|
|
nsIFrame* scrollFrame;
|
|
if (isScrollable) {
|
|
NS_NewScrollFrame(scrollFrame);
|
|
// XXX should probably be a scrolled content pseudo style context
|
|
scrollFrame->Init(*aPresContext, nsnull, viewportFrame, viewportPseudoStyle,
|
|
nsnull);
|
|
|
|
// Inform the view manager about the root scrollable view
|
|
nsIView* scrollFrameView;
|
|
nsIScrollableView* scrollingView;
|
|
|
|
scrollFrame->GetView(&scrollFrameView);
|
|
NS_ASSERTION(scrollFrameView, "scroll frame has no view");
|
|
scrollFrameView->QueryInterface(kScrollViewIID, (void**)&scrollingView);
|
|
viewManager->SetRootScrollableView(scrollingView);
|
|
}
|
|
|
|
PRBool isPaginated;
|
|
aPresContext->IsPaginated(&isPaginated);
|
|
if (isPaginated) {
|
|
nsIFrame* pageSequenceFrame;
|
|
|
|
// Create a page sequence frame
|
|
NS_NewSimplePageSequenceFrame(pageSequenceFrame);
|
|
// XXX should probably be a page sequence pseudo style context
|
|
pageSequenceFrame->Init(*aPresContext, nsnull, isScrollable ? scrollFrame :
|
|
viewportFrame, viewportPseudoStyle, nsnull);
|
|
if (isScrollable) {
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, pageSequenceFrame,
|
|
viewportPseudoStyle, PR_TRUE);
|
|
}
|
|
|
|
// Create the first page
|
|
nsIFrame* pageFrame;
|
|
NS_NewPageFrame(pageFrame);
|
|
|
|
// The page is the containing block for 'fixed' elements. which are repeated
|
|
// on every page
|
|
mFixedContainingBlock = pageFrame;
|
|
|
|
// Initialize the page and force it to have a view. This makes printing of
|
|
// the pages easier and faster.
|
|
// XXX Use a PAGE style context...
|
|
nsCOMPtr<nsIStyleContext> pagePseudoStyle;
|
|
|
|
aPresContext->ResolvePseudoStyleContextFor(nsnull, nsLayoutAtoms::pagePseudo,
|
|
viewportPseudoStyle, PR_FALSE,
|
|
getter_AddRefs(pagePseudoStyle));
|
|
|
|
pageFrame->Init(*aPresContext, nsnull, pageSequenceFrame, pagePseudoStyle,
|
|
nsnull);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, pageFrame,
|
|
pagePseudoStyle, PR_TRUE);
|
|
|
|
// The eventual parent of the document element frame
|
|
mDocElementContainingBlock = pageFrame;
|
|
|
|
|
|
// Set the initial child lists
|
|
pageSequenceFrame->SetInitialChildList(*aPresContext, nsnull, pageFrame);
|
|
if (isScrollable) {
|
|
scrollFrame->SetInitialChildList(*aPresContext, nsnull, pageSequenceFrame);
|
|
viewportFrame->SetInitialChildList(*aPresContext, nsnull, scrollFrame);
|
|
} else {
|
|
viewportFrame->SetInitialChildList(*aPresContext, nsnull, pageSequenceFrame);
|
|
}
|
|
|
|
} else {
|
|
// The viewport is the containing block for 'fixed' elements
|
|
mFixedContainingBlock = viewportFrame;
|
|
|
|
// Create the root frame. The document element's frame is a child of the
|
|
// root frame.
|
|
//
|
|
// Note: the major reason we need the root frame is to implement margins for
|
|
// the document element's frame. If we didn't need to support margins on the
|
|
// document element's frame, then we could eliminate the root frame and make
|
|
// the document element frame a child of the viewport (or its scroll frame)
|
|
nsIFrame* rootFrame;
|
|
NS_NewRootFrame(rootFrame);
|
|
|
|
// XXX this should be a root pseudo style context
|
|
rootFrame->Init(*aPresContext, nsnull, isScrollable ? scrollFrame :
|
|
viewportFrame, viewportPseudoStyle, nsnull);
|
|
if (isScrollable) {
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, rootFrame,
|
|
viewportPseudoStyle, PR_TRUE);
|
|
}
|
|
|
|
// The eventual parent of the document element frame
|
|
mDocElementContainingBlock = rootFrame;
|
|
|
|
// Set the initial child lists
|
|
if (isScrollable) {
|
|
scrollFrame->SetInitialChildList(*aPresContext, nsnull, rootFrame);
|
|
viewportFrame->SetInitialChildList(*aPresContext, nsnull, scrollFrame);
|
|
} else {
|
|
viewportFrame->SetInitialChildList(*aPresContext, nsnull, rootFrame);
|
|
}
|
|
}
|
|
|
|
aNewFrame = viewportFrame;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::CreatePlaceholderFrameFor(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsIFrame* aParentFrame,
|
|
nsIFrame** aPlaceholderFrame)
|
|
{
|
|
nsPlaceholderFrame* placeholderFrame;
|
|
nsresult rv = NS_NewPlaceholderFrame((nsIFrame**)&placeholderFrame);
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// The placeholder frame gets a pseudo style context
|
|
nsCOMPtr<nsIStyleContext> placeholderPseudoStyle;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::placeholderPseudo,
|
|
aStyleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(placeholderPseudoStyle));
|
|
placeholderFrame->Init(*aPresContext, aContent, aParentFrame,
|
|
placeholderPseudoStyle, nsnull);
|
|
|
|
// Add mapping from absolutely positioned frame to its placeholder frame
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
aPresContext->GetShell(getter_AddRefs(presShell));
|
|
presShell->SetPlaceholderFrameFor(aFrame, placeholderFrame);
|
|
|
|
// The placeholder frame has a pointer back to the out-of-flow frame
|
|
placeholderFrame->SetOutOfFlowFrame(aFrame);
|
|
|
|
*aPlaceholderFrame = NS_STATIC_CAST(nsIFrame*, placeholderFrame);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructSelectFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIAtom* aTag,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsIFrame*& aNewFrame,
|
|
PRBool & aProcessChildren,
|
|
PRBool aIsAbsolutelyPositioned,
|
|
PRBool & aFrameHasBeenInitialized,
|
|
PRBool aIsFixedPositioned,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsFrameItems& aFrameItems)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
nsWidgetRendering mode;
|
|
aPresContext->GetWidgetRenderingMode(&mode);
|
|
const PRInt32 kNoSizeSpecified = -1;
|
|
|
|
if (eWidgetRendering_Gfx == mode) {
|
|
// Construct a frame-based listbox or combobox
|
|
nsIDOMHTMLSelectElement* select = nsnull;
|
|
PRInt32 size = 1;
|
|
nsresult result = aContent->QueryInterface(kIDOMHTMLSelectElementIID, (void**)&select);
|
|
if (NS_OK == result) {
|
|
result = select->GetSize(&size);
|
|
if ((1 == size) || (kNoSizeSpecified == size)) {
|
|
// Construct a frame-based combo box
|
|
nsIFrame * comboboxFrame;
|
|
rv = NS_NewComboboxControlFrame(comboboxFrame);
|
|
|
|
nsIFrame* geometricParent = aParentFrame;
|
|
if (aIsAbsolutelyPositioned) {
|
|
geometricParent = aAbsoluteItems.containingBlock;
|
|
} else if (aIsFixedPositioned) {
|
|
geometricParent = aFixedItems.containingBlock;
|
|
}
|
|
|
|
comboboxFrame->Init(*aPresContext, aContent, geometricParent, aStyleContext, nsnull);
|
|
nsIComboboxControlFrame* comboBox = nsnull;
|
|
if (NS_OK == comboboxFrame->QueryInterface(kIComboboxControlFrameIID, (void**)&comboBox)) {
|
|
nsIFrame * listFrame;
|
|
rv = NS_NewListControlFrame(listFrame);
|
|
|
|
// This is important to do before it is initialized
|
|
// it tells it that it is in "DropDown Mode"
|
|
nsIListControlFrame * listControlFrame;
|
|
if (NS_OK == listFrame->QueryInterface(kIListControlFrameIID, (void**)&listControlFrame)) {
|
|
listControlFrame->SetComboboxFrame(comboboxFrame);
|
|
}
|
|
|
|
//XXX: TODO: Make sure that a failure to resolve the following
|
|
//pseudo style will still work.
|
|
|
|
// Set up the Pseudo Style contents
|
|
|
|
// Dropdown list style
|
|
nsCOMPtr<nsIStyleContext> listStyle;
|
|
aPresContext->ResolvePseudoStyleContextFor
|
|
(aContent, nsHTMLAtoms::dropDownList, aStyleContext, PR_FALSE,
|
|
getter_AddRefs(listStyle));
|
|
|
|
// Dropdown list visible style
|
|
nsCOMPtr<nsIStyleContext> visiblePseudoStyle;
|
|
aPresContext->ResolvePseudoStyleContextFor
|
|
(aContent, nsHTMLAtoms::dropDownVisible, aStyleContext, PR_FALSE,
|
|
getter_AddRefs(visiblePseudoStyle));
|
|
|
|
// Dropdown list hidden style
|
|
nsCOMPtr<nsIStyleContext> hiddenPseudoStyle;
|
|
aPresContext->ResolvePseudoStyleContextFor
|
|
(aContent, nsHTMLAtoms::dropDownHidden, aStyleContext, PR_FALSE,
|
|
getter_AddRefs(hiddenPseudoStyle));
|
|
|
|
|
|
// Initialize the scroll frame as absolutely positioned.
|
|
InitializeScrollFrame(listFrame, aPresContext, aContent, comboboxFrame, listStyle,
|
|
aAbsoluteItems, aNewFrame, aFixedItems, PR_TRUE,
|
|
PR_FALSE, PR_TRUE);
|
|
|
|
// Set flag so the events go to the listFrame not child frames.
|
|
// XXX: We should replace this with a real widget manager similar
|
|
// to how the nsFormControlFrame works.
|
|
// Re-directing events is a temporary Kludge.
|
|
nsIView *listView;
|
|
listFrame->GetView(&listView);
|
|
NS_ASSERTION(nsnull != listView,"ListFrame's view is nsnull");
|
|
listView->SetViewFlags(NS_VIEW_PUBLIC_FLAG_DONT_CHECK_CHILDREN);
|
|
|
|
// Set initial visibility to hidden for the drop-down list
|
|
// XXX: This should not be necessary. Need to restructure the combo box as follows:
|
|
// Derive nsComboboxFrame from nsAreaFrame. Attach the placeholder frame, a label frame and
|
|
// a button frame. Override reresolve style context and reresolve the style on the ListBox.
|
|
// The event state manager should then be asked to set active and non-active based on
|
|
// The mouse click this would get rid of all of the ugly code here. The setting of the active
|
|
// Should cause re-resolution of the AreaFrame which will re-sync it. KMM.
|
|
listFrame->ReResolveStyleContext(aPresContext, hiddenPseudoStyle, NS_STYLE_HINT_NONE, nsnull, nsnull);
|
|
listView->SetVisibility(nsViewVisibility_kHide);
|
|
|
|
|
|
// Create a place holder frame for the dropdown list
|
|
nsIFrame* placeholderFrame = nsnull;
|
|
CreatePlaceholderFrameFor(aPresContext, aContent, aNewFrame, aStyleContext,
|
|
aParentFrame, &placeholderFrame);
|
|
aFrameItems.AddChild(placeholderFrame);
|
|
|
|
// Add the absolutely positioned frame to its containing block's list
|
|
// of child frames
|
|
aAbsoluteItems.AddChild(listFrame);
|
|
|
|
listFrame = aNewFrame;
|
|
|
|
// This needs to be done "after" the ListFrame has it's ChildList set
|
|
// because the SetInitChildList intializes the ListBox selection state
|
|
// and this method initializes the ComboBox's selection state
|
|
comboBox->SetDropDown(placeholderFrame, listFrame);
|
|
|
|
|
|
// Set up the Pseudo Style contents for combo box button pressed and
|
|
// out.
|
|
//XXX: TODO: Make this work even if resolving the pseudo style fails.
|
|
|
|
nsCOMPtr<nsIStyleContext> outPseudoStyle;
|
|
aPresContext->ResolvePseudoStyleContextFor
|
|
(aContent, nsHTMLAtoms::dropDownBtnOut, aStyleContext, PR_FALSE,
|
|
getter_AddRefs(outPseudoStyle));
|
|
|
|
nsCOMPtr<nsIStyleContext> pressPseudoStyle;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::dropDownBtnPressed,
|
|
aStyleContext, PR_FALSE, getter_AddRefs(pressPseudoStyle));
|
|
|
|
comboBox->SetDropDownStyleContexts(visiblePseudoStyle, hiddenPseudoStyle);
|
|
comboBox->SetButtonStyleContexts(outPseudoStyle, pressPseudoStyle);
|
|
|
|
nsIFrame* frame = nsnull;
|
|
if (NS_OK == comboboxFrame->QueryInterface(kIFrameIID, (void**)&frame)) {
|
|
nsFrameItems childItems;
|
|
frame->SetInitialChildList(*aPresContext, nsnull,
|
|
childItems.childList);
|
|
}
|
|
aProcessChildren = PR_FALSE;
|
|
//XXX: TODO: Need to set an option on the view that was created for the dropdown list
|
|
//to be a borderless top-level window.
|
|
|
|
aNewFrame = comboboxFrame;
|
|
aFrameHasBeenInitialized = PR_TRUE;
|
|
}
|
|
|
|
} else {
|
|
// Construct a frame-based list box
|
|
nsIFrame * listFrame;
|
|
rv = NS_NewListControlFrame(listFrame);
|
|
aNewFrame = listFrame;
|
|
InitializeScrollFrame(listFrame, aPresContext, aContent, aParentFrame, aStyleContext,
|
|
aAbsoluteItems, aNewFrame, aFixedItems, aIsAbsolutelyPositioned, PR_FALSE, PR_TRUE);
|
|
|
|
// Set flag so the events go to the listFrame not child frames.
|
|
// XXX: We should replace this with a real widget manager similar
|
|
// to how the nsFormControlFrame works.
|
|
// Re-directing events is a temporary Kludge.
|
|
nsIView *listView;
|
|
listFrame->GetView(&listView);
|
|
NS_ASSERTION(nsnull != listView,"ListFrame's view is nsnull");
|
|
listView->SetViewFlags(NS_VIEW_PUBLIC_FLAG_DONT_CHECK_CHILDREN);
|
|
aFrameHasBeenInitialized = PR_TRUE;
|
|
}
|
|
NS_RELEASE(select);
|
|
} else {
|
|
rv = NS_NewSelectControlFrame(aNewFrame);
|
|
}
|
|
}
|
|
else {
|
|
// Not frame based. Use a SelectFrame which creates a native widget.
|
|
rv = NS_NewSelectControlFrame(aNewFrame);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructFrameByTag(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIAtom* aTag,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsFrameItems& aFrameItems,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsAbsoluteItems& aFloatingItems)
|
|
{
|
|
PRBool processChildren = PR_FALSE; // whether we should process child content
|
|
PRBool isAbsolutelyPositioned = PR_FALSE;
|
|
PRBool isFixedPositioned = PR_FALSE;
|
|
PRBool isFloating = PR_FALSE;
|
|
PRBool canBePositioned = PR_TRUE;
|
|
PRBool frameHasBeenInitialized = PR_FALSE;
|
|
nsIFrame* newFrame = nsnull; // the frame we construct
|
|
PRBool newFrameIsFloaterContainer = PR_FALSE;
|
|
PRBool isReplaced = PR_FALSE;
|
|
nsresult rv = NS_OK;
|
|
|
|
if (nsLayoutAtoms::textTagName == aTag) {
|
|
rv = NS_NewTextFrame(newFrame);
|
|
isReplaced = PR_TRUE; // XXX kipp: temporary
|
|
}
|
|
else {
|
|
nsIHTMLContent *htmlContent;
|
|
|
|
// Ignore the tag if it's not HTML content
|
|
if (NS_SUCCEEDED(aContent->QueryInterface(kIHTMLContentIID, (void **)&htmlContent))) {
|
|
NS_RELEASE(htmlContent);
|
|
|
|
// See if the element is absolute or fixed positioned
|
|
const nsStylePosition* position = (const nsStylePosition*)
|
|
aStyleContext->GetStyleData(eStyleStruct_Position);
|
|
const nsStyleDisplay* display = (const nsStyleDisplay*)
|
|
aStyleContext->GetStyleData(eStyleStruct_Display);
|
|
if (NS_STYLE_POSITION_ABSOLUTE == position->mPosition) {
|
|
isAbsolutelyPositioned = PR_TRUE;
|
|
}
|
|
else if (NS_STYLE_POSITION_FIXED == position->mPosition) {
|
|
isFixedPositioned = PR_TRUE;
|
|
}
|
|
else if (NS_STYLE_FLOAT_NONE != display->mFloats) {
|
|
isFloating = PR_TRUE;
|
|
}
|
|
|
|
// Create a frame based on the tag
|
|
if (nsHTMLAtoms::img == aTag) {
|
|
isReplaced = PR_TRUE;
|
|
// XXX If image display is turned off, then use ConstructAlternateImageFrame()
|
|
// instead...
|
|
rv = NS_NewImageFrame(newFrame);
|
|
}
|
|
else if (nsHTMLAtoms::hr == aTag) {
|
|
rv = NS_NewHRFrame(newFrame);
|
|
}
|
|
else if (nsHTMLAtoms::br == aTag) {
|
|
rv = NS_NewBRFrame(newFrame);
|
|
isReplaced = PR_TRUE;
|
|
}
|
|
else if (nsHTMLAtoms::wbr == aTag) {
|
|
rv = NS_NewWBRFrame(newFrame);
|
|
}
|
|
else if (nsHTMLAtoms::input == aTag) {
|
|
isReplaced = PR_TRUE;
|
|
rv = CreateInputFrame(aContent, newFrame);
|
|
}
|
|
else if (nsHTMLAtoms::textarea == aTag) {
|
|
isReplaced = PR_TRUE;
|
|
rv = NS_NewTextControlFrame(newFrame);
|
|
}
|
|
else if (nsHTMLAtoms::select == aTag) {
|
|
isReplaced = PR_TRUE;
|
|
rv = ConstructSelectFrame(aPresContext, aContent, aParentFrame,
|
|
aTag, aStyleContext, aAbsoluteItems,
|
|
newFrame, processChildren,
|
|
isAbsolutelyPositioned,
|
|
frameHasBeenInitialized,
|
|
isFixedPositioned, aFixedItems, aFrameItems);
|
|
}
|
|
else if (nsHTMLAtoms::applet == aTag) {
|
|
isReplaced = PR_TRUE;
|
|
rv = NS_NewObjectFrame(newFrame);
|
|
}
|
|
else if (nsHTMLAtoms::embed == aTag) {
|
|
rv = NS_NewObjectFrame(newFrame);
|
|
}
|
|
else if (nsHTMLAtoms::fieldset == aTag) {
|
|
rv = NS_NewFieldSetFrame(newFrame);
|
|
processChildren = PR_TRUE;
|
|
}
|
|
else if (nsHTMLAtoms::legend == aTag) {
|
|
rv = NS_NewLegendFrame(newFrame);
|
|
processChildren = PR_TRUE;
|
|
canBePositioned = PR_FALSE;
|
|
}
|
|
else if (nsHTMLAtoms::object == aTag) {
|
|
isReplaced = PR_TRUE;
|
|
rv = NS_NewObjectFrame(newFrame);
|
|
}
|
|
else if (nsHTMLAtoms::form == aTag) {
|
|
rv = NS_NewFormFrame(newFrame);
|
|
}
|
|
else if (nsHTMLAtoms::frameset == aTag) {
|
|
rv = NS_NewHTMLFramesetFrame(newFrame);
|
|
canBePositioned = PR_FALSE;
|
|
}
|
|
else if (nsHTMLAtoms::iframe == aTag) {
|
|
isReplaced = PR_TRUE;
|
|
rv = NS_NewHTMLFrameOuterFrame(newFrame);
|
|
}
|
|
else if (nsHTMLAtoms::spacer == aTag) {
|
|
rv = NS_NewSpacerFrame(newFrame);
|
|
canBePositioned = PR_FALSE;
|
|
}
|
|
else if (nsHTMLAtoms::button == aTag) {
|
|
rv = NS_NewHTMLButtonControlFrame(newFrame);
|
|
// the html4 button needs to act just like a
|
|
// regular button except contain html content
|
|
// so it must be replaced or html outside it will
|
|
// draw into its borders. -EDV
|
|
isReplaced = PR_TRUE;
|
|
processChildren = PR_TRUE;
|
|
}
|
|
else if (nsHTMLAtoms::label == aTag) {
|
|
rv = NS_NewLabelFrame(newFrame);
|
|
processChildren = PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If we succeeded in creating a frame then initialize it, process its
|
|
// children (if requested), and set the initial child list
|
|
if (NS_SUCCEEDED(rv) && (nsnull != newFrame)) {
|
|
// If the frame is a replaced element, then set the frame state bit
|
|
if (isReplaced) {
|
|
nsFrameState state;
|
|
newFrame->GetFrameState(&state);
|
|
newFrame->SetFrameState(state | NS_FRAME_REPLACED_ELEMENT);
|
|
}
|
|
|
|
if (!frameHasBeenInitialized) {
|
|
nsIFrame* geometricParent = aParentFrame;
|
|
|
|
if (canBePositioned) {
|
|
if (isAbsolutelyPositioned) {
|
|
geometricParent = aAbsoluteItems.containingBlock;
|
|
} else if (isFixedPositioned) {
|
|
geometricParent = aFixedItems.containingBlock;
|
|
}
|
|
}
|
|
|
|
newFrame->Init(*aPresContext, aContent, geometricParent, aStyleContext,
|
|
nsnull);
|
|
|
|
// See if we need to create a view, e.g. the frame is absolutely
|
|
// positioned
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
aStyleContext, PR_FALSE);
|
|
|
|
// Process the child content if requested
|
|
nsFrameItems childItems;
|
|
nsAbsoluteItems floaterList(newFrame);
|
|
if (processChildren) {
|
|
if (newFrameIsFloaterContainer) {
|
|
rv = ProcessChildren(aPresContext, aContent, newFrame,
|
|
aAbsoluteItems, childItems, aFixedItems,
|
|
floaterList, PR_TRUE);
|
|
}
|
|
else {
|
|
rv = ProcessChildren(aPresContext, aContent, newFrame,
|
|
aAbsoluteItems, childItems, aFixedItems,
|
|
aFloatingItems, PR_TRUE);
|
|
}
|
|
}
|
|
|
|
// Set the frame's initial child list
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull, childItems.childList);
|
|
|
|
// Set the frame's floating child list, too
|
|
if (floaterList.childList) {
|
|
newFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
}
|
|
|
|
// If the frame is positioned, then create a placeholder frame
|
|
if (isAbsolutelyPositioned || isFixedPositioned) {
|
|
nsIFrame* placeholderFrame;
|
|
|
|
CreatePlaceholderFrameFor(aPresContext, aContent, newFrame,
|
|
aStyleContext, aParentFrame, &placeholderFrame);
|
|
|
|
// Add the positioned frame to its containing block's list of
|
|
// child frames
|
|
if (isAbsolutelyPositioned) {
|
|
aAbsoluteItems.AddChild(newFrame);
|
|
} else {
|
|
aFixedItems.AddChild(newFrame);
|
|
}
|
|
|
|
// Add the placeholder frame to the flow
|
|
aFrameItems.AddChild(placeholderFrame);
|
|
|
|
} else if (isFloating) {
|
|
nsIFrame* placeholderFrame;
|
|
CreatePlaceholderFrameFor(aPresContext, aContent, newFrame,
|
|
aStyleContext, aParentFrame, &placeholderFrame);
|
|
|
|
// Add the floating frame to its containing block's list of child frames
|
|
aFloatingItems.AddChild(newFrame);
|
|
|
|
// Add the placeholder frame to the flow
|
|
aFrameItems.AddChild(placeholderFrame);
|
|
} else {
|
|
// Add the newly constructed frame to the flow
|
|
aFrameItems.AddChild(newFrame);
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
#ifdef INCLUDE_XUL
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructXULFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIAtom* aTag,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsFrameItems& aFrameItems,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsAbsoluteItems& aFloatingItems,
|
|
PRBool& haltProcessing)
|
|
{
|
|
PRBool processChildren = PR_FALSE; // whether we should process child content
|
|
nsresult rv = NS_OK;
|
|
PRBool isAbsolutelyPositioned = PR_FALSE;
|
|
PRBool isFixedPositioned = PR_FALSE;
|
|
PRBool isReplaced = PR_FALSE;
|
|
|
|
// Initialize the new frame
|
|
nsIFrame* newFrame = nsnull;
|
|
nsIFrame* ignore = nsnull; // I have no idea what this is used for.
|
|
nsTreeCreator treeCreator; // Used to make tree views.
|
|
|
|
NS_ASSERTION(aTag != nsnull, "null XUL tag");
|
|
if (aTag == nsnull)
|
|
return NS_OK;
|
|
|
|
PRInt32 nameSpaceID;
|
|
if (NS_SUCCEEDED(aContent->GetNameSpaceID(nameSpaceID)) &&
|
|
nameSpaceID == nsXULAtoms::nameSpaceID) {
|
|
|
|
// See if the element is absolutely positioned
|
|
const nsStylePosition* position = (const nsStylePosition*)
|
|
aStyleContext->GetStyleData(eStyleStruct_Position);
|
|
if (NS_STYLE_POSITION_ABSOLUTE == position->mPosition)
|
|
isAbsolutelyPositioned = PR_TRUE;
|
|
|
|
// Create a frame based on the tag
|
|
if (aTag == nsXULAtoms::button)
|
|
rv = NS_NewButtonControlFrame(newFrame);
|
|
else if (aTag == nsXULAtoms::checkbox)
|
|
rv = NS_NewCheckboxControlFrame(newFrame);
|
|
else if (aTag == nsXULAtoms::tristatecheckbox)
|
|
rv = NS_NewTriStateCheckboxFrame(newFrame);
|
|
else if (aTag == nsXULAtoms::slider)
|
|
rv = NS_NewSliderFrame(newFrame);
|
|
else if (aTag == nsXULAtoms::spinner)
|
|
rv = NS_NewSpinnerFrame(newFrame);
|
|
else if (aTag == nsXULAtoms::scrollbar)
|
|
rv = NS_NewScrollbarFrame(newFrame);
|
|
else if (aTag == nsXULAtoms::colorpicker)
|
|
rv = NS_NewColorPickerFrame(newFrame);
|
|
else if (aTag == nsXULAtoms::fontpicker)
|
|
rv = NS_NewFontPickerFrame(newFrame);
|
|
else if (aTag == nsXULAtoms::radio)
|
|
rv = NS_NewRadioControlFrame(newFrame);
|
|
else if (aTag == nsXULAtoms::text)
|
|
rv = NS_NewTextControlFrame(newFrame);
|
|
else if (aTag == nsXULAtoms::widget)
|
|
rv = NS_NewObjectFrame(newFrame);
|
|
|
|
// TREE CONSTRUCTION
|
|
// The following code is used to construct a tree view from the XUL content
|
|
// model. It has to take the hierarchical tree content structure and build a flattened
|
|
// table row frame structure.
|
|
else if (aTag == nsXULAtoms::tree)
|
|
{
|
|
nsIFrame* geometricParent = aParentFrame;
|
|
if (NS_STYLE_POSITION_ABSOLUTE == position->mPosition) {
|
|
isAbsolutelyPositioned = PR_TRUE;
|
|
aParentFrame = aAbsoluteItems.containingBlock;
|
|
}
|
|
if (NS_STYLE_POSITION_FIXED == position->mPosition) {
|
|
isFixedPositioned = PR_TRUE;
|
|
aParentFrame = aFixedItems.containingBlock;
|
|
}
|
|
rv = ConstructTableFrame(aPresContext, aContent, geometricParent, aStyleContext,
|
|
aAbsoluteItems, newFrame, aFixedItems, treeCreator);
|
|
// Note: table construction function takes care of initializing the frame,
|
|
// processing children, and setting the initial child list
|
|
if (isAbsolutelyPositioned || isFixedPositioned) {
|
|
nsIFrame* placeholderFrame;
|
|
|
|
CreatePlaceholderFrameFor(aPresContext, aContent, newFrame, aStyleContext,
|
|
aParentFrame, &placeholderFrame);
|
|
|
|
// Add the positioned frame to its containing block's list of child frames
|
|
if (isAbsolutelyPositioned) {
|
|
aAbsoluteItems.AddChild(newFrame);
|
|
} else {
|
|
aFixedItems.AddChild(newFrame);
|
|
}
|
|
|
|
// Add the placeholder frame to the flow
|
|
aFrameItems.AddChild(placeholderFrame);
|
|
|
|
} else {
|
|
// Add the table frame to the flow
|
|
aFrameItems.AddChild(newFrame);
|
|
}
|
|
return rv;
|
|
}
|
|
else if (aTag == nsXULAtoms::treechildren)
|
|
{
|
|
haltProcessing = PR_TRUE;
|
|
return rv; // This is actually handled by the treeitem node.
|
|
}
|
|
else if (aTag == nsXULAtoms::treeitem)
|
|
{
|
|
// A tree item causes a table row to be constructed that is always
|
|
// slaved to the nearest enclosing table row group (regardless of how
|
|
// deeply nested it is within other tree items).
|
|
rv = ConstructTableRowFrame(aPresContext, aContent, aParentFrame, aStyleContext,
|
|
aAbsoluteItems, newFrame, ignore, aFixedItems, treeCreator);
|
|
aFrameItems.AddChild(newFrame);
|
|
|
|
// We need to find the treechildren node that is a child of this node
|
|
// and we need to construct new rows.
|
|
PRInt32 aChildCount;
|
|
aContent->ChildCount(aChildCount);
|
|
for (PRInt32 i = 0; i < aChildCount; i++)
|
|
{
|
|
nsCOMPtr<nsIContent> childContent;
|
|
|
|
if (NS_SUCCEEDED(aContent->ChildAt(i, *getter_AddRefs(childContent))))
|
|
{
|
|
// Construct a child frame
|
|
nsCOMPtr<nsIAtom> pTag;
|
|
childContent->GetTag(*getter_AddRefs(pTag));
|
|
if (pTag.get() == nsXULAtoms::treechildren)
|
|
{
|
|
// Always build rows. Rely on style rules to hide frames.
|
|
// Rely on RDF trickery to hide synthetic content from the content model.
|
|
|
|
nsAbsoluteItems floaterList(nsnull);
|
|
rv = ProcessChildren(aPresContext, childContent, aParentFrame,
|
|
aAbsoluteItems, aFrameItems, aFixedItems,
|
|
floaterList);
|
|
NS_ASSERTION(nsnull == floaterList.childList, "floater in odd spot");
|
|
}
|
|
}
|
|
}
|
|
return rv;
|
|
|
|
// Note: See later in this method. More processing has to be done after the
|
|
// tree item has constructed its children and after this frame has been added
|
|
// to our list.
|
|
}
|
|
else if (aTag == nsXULAtoms::treecell)
|
|
{
|
|
// We make a tree cell frame and process the children.
|
|
// Find out what the attribute value for event allowance is.
|
|
nsString attrValue;
|
|
nsresult result = aContent->GetAttribute(nsXULAtoms::nameSpaceID, nsXULAtoms::treeallowevents, attrValue);
|
|
attrValue.ToLowerCase();
|
|
PRBool allowEvents = (result == NS_CONTENT_ATTR_NO_VALUE ||
|
|
(result == NS_CONTENT_ATTR_HAS_VALUE && attrValue=="true"));
|
|
nsIFrame* ignore2;
|
|
rv = ConstructTableCellFrame(aPresContext, aContent, aParentFrame, aStyleContext,
|
|
aAbsoluteItems, newFrame, ignore, ignore2, aFixedItems,
|
|
treeCreator);
|
|
aFrameItems.AddChild(newFrame);
|
|
((nsTreeCellFrame*)newFrame)->SetAllowEvents(allowEvents);
|
|
return rv;
|
|
}
|
|
else if (aTag == nsXULAtoms::treeindentation)
|
|
{
|
|
rv = NS_NewTreeIndentationFrame(newFrame);
|
|
}
|
|
// End of TREE CONSTRUCTION code here (there's more later on in the function)
|
|
|
|
// TOOLBAR CONSTRUCTION
|
|
else if (aTag == nsXULAtoms::toolbox) {
|
|
processChildren = PR_TRUE;
|
|
rv = NS_NewToolboxFrame(newFrame);
|
|
}
|
|
else if (aTag == nsXULAtoms::toolbar) {
|
|
processChildren = PR_TRUE;
|
|
rv = NS_NewToolbarFrame(newFrame);
|
|
}
|
|
// End of TOOLBAR CONSTRUCTION logic
|
|
|
|
// PROGRESS METER CONSTRUCTION
|
|
else if (aTag == nsXULAtoms::progressmeter) {
|
|
processChildren = PR_TRUE;
|
|
isReplaced = PR_TRUE;
|
|
rv = NS_NewProgressMeterFrame(newFrame);
|
|
}
|
|
// End of PROGRESS METER CONSTRUCTION logic
|
|
|
|
// BOX CONSTRUCTION
|
|
else if (aTag == nsXULAtoms::box || aTag == nsXULAtoms::tabbox || aTag == nsXULAtoms::tabpage || aTag == nsXULAtoms::tabcontrol) {
|
|
processChildren = PR_TRUE;
|
|
isReplaced = PR_TRUE;
|
|
rv = NS_NewBoxFrame(newFrame);
|
|
}
|
|
// End of BOX CONSTRUCTION logic
|
|
|
|
// TITLED BUTTON CONSTRUCTION
|
|
else if (aTag == nsXULAtoms::titledbutton) {
|
|
processChildren = PR_TRUE;
|
|
isReplaced = PR_TRUE;
|
|
rv = NS_NewTitledButtonFrame(newFrame);
|
|
}
|
|
// End of TITLED BUTTON CONSTRUCTION logic
|
|
|
|
// DECK CONSTRUCTION
|
|
else if (aTag == nsXULAtoms::deck || aTag == nsXULAtoms::tabpanel) {
|
|
processChildren = PR_TRUE;
|
|
isReplaced = PR_TRUE;
|
|
rv = NS_NewDeckFrame(newFrame);
|
|
}
|
|
// End of DECK CONSTRUCTION logic
|
|
|
|
// TAB CONSTRUCTION
|
|
else if (aTag == nsXULAtoms::tab) {
|
|
processChildren = PR_TRUE;
|
|
isReplaced = PR_TRUE;
|
|
rv = NS_NewTabFrame(newFrame);
|
|
}
|
|
// End of TAB CONSTRUCTION logic
|
|
|
|
}
|
|
|
|
// If we succeeded in creating a frame then initialize it, process its
|
|
// children (if requested), and set the initial child list
|
|
if (NS_SUCCEEDED(rv) && newFrame != nsnull) {
|
|
// If the frame is a replaced element, then set the frame state bit
|
|
if (isReplaced) {
|
|
nsFrameState state;
|
|
newFrame->GetFrameState(&state);
|
|
newFrame->SetFrameState(state | NS_FRAME_REPLACED_ELEMENT);
|
|
}
|
|
|
|
nsIFrame* geometricParent = isAbsolutelyPositioned
|
|
? aAbsoluteItems.containingBlock
|
|
: aParentFrame;
|
|
newFrame->Init(*aPresContext, aContent, geometricParent, aStyleContext,
|
|
nsnull);
|
|
|
|
// See if we need to create a view, e.g. the frame is absolutely positioned
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
aStyleContext, PR_FALSE);
|
|
|
|
// Add the new frame to our list of frame items.
|
|
aFrameItems.AddChild(newFrame);
|
|
|
|
// Process the child content if requested
|
|
nsFrameItems childItems;
|
|
if (processChildren) {
|
|
rv = ProcessChildren(aPresContext, aContent, newFrame, aAbsoluteItems,
|
|
childItems, aFixedItems, aFloatingItems);
|
|
}
|
|
|
|
|
|
// Set the frame's initial child list
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull, childItems.childList);
|
|
|
|
// If the frame is absolutely positioned then create a placeholder frame
|
|
if (isAbsolutelyPositioned || isFixedPositioned) {
|
|
nsIFrame* placeholderFrame;
|
|
|
|
CreatePlaceholderFrameFor(aPresContext, aContent, newFrame, aStyleContext,
|
|
aParentFrame, &placeholderFrame);
|
|
|
|
// Add the positioned frame to its containing block's list of child frames
|
|
if (isAbsolutelyPositioned) {
|
|
aAbsoluteItems.AddChild(newFrame);
|
|
} else {
|
|
aFixedItems.AddChild(newFrame);
|
|
}
|
|
|
|
// Add the placeholder frame to the flow
|
|
aFrameItems.AddChild(placeholderFrame);
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
#endif
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::InitializeScrollFrame(nsIFrame* scrollFrame,
|
|
nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsIFrame*& aNewFrame,
|
|
nsAbsoluteItems& aFixedItems,
|
|
PRBool aIsAbsolutelyPositioned,
|
|
PRBool aIsFixedPositioned,
|
|
PRBool aCreateBlock)
|
|
{
|
|
// Initialize it
|
|
nsIFrame* geometricParent = aParentFrame;
|
|
|
|
if (aIsAbsolutelyPositioned) {
|
|
geometricParent = aAbsoluteItems.containingBlock;
|
|
} else if (aIsFixedPositioned) {
|
|
geometricParent = aFixedItems.containingBlock;
|
|
}
|
|
scrollFrame->Init(*aPresContext, aContent, geometricParent, aStyleContext,
|
|
nsnull);
|
|
|
|
// The scroll frame gets the original style context, and the scrolled
|
|
// frame gets a SCROLLED-CONTENT pseudo element style context that
|
|
// inherits the background properties
|
|
nsCOMPtr<nsIStyleContext> scrolledPseudoStyle;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent,
|
|
nsHTMLAtoms::scrolledContentPseudo,
|
|
aStyleContext, PR_FALSE,
|
|
getter_AddRefs(scrolledPseudoStyle));
|
|
|
|
// Create an area container for the frame
|
|
nsIFrame* scrolledFrame;
|
|
NS_NewAreaFrame(scrolledFrame, NS_BLOCK_SHRINK_WRAP);
|
|
|
|
// Initialize the frame and force it to have a view
|
|
scrolledFrame->Init(*aPresContext, aContent, scrollFrame,
|
|
scrolledPseudoStyle, nsnull);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, scrolledFrame,
|
|
scrolledPseudoStyle, PR_TRUE);
|
|
|
|
// Process children
|
|
nsAbsoluteItems floaterList(scrolledFrame);
|
|
if (aIsAbsolutelyPositioned || aIsFixedPositioned) {
|
|
// The area frame becomes a container for child frames that are
|
|
// absolutely positioned
|
|
nsAbsoluteItems absoluteItems(scrolledFrame);
|
|
nsFrameItems childItems;
|
|
ProcessChildren(aPresContext, aContent, scrolledFrame, absoluteItems,
|
|
childItems, aFixedItems, floaterList);
|
|
|
|
// Set the initial child lists
|
|
scrolledFrame->SetInitialChildList(*aPresContext, nsnull,
|
|
childItems.childList);
|
|
if (nsnull != absoluteItems.childList) {
|
|
scrolledFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::absoluteList,
|
|
absoluteItems.childList);
|
|
}
|
|
if (floaterList.childList) {
|
|
scrolledFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
} else {
|
|
nsFrameItems childItems;
|
|
ProcessChildren(aPresContext, aContent, scrolledFrame, aAbsoluteItems,
|
|
childItems, aFixedItems, floaterList);
|
|
|
|
// Set the initial child lists
|
|
scrolledFrame->SetInitialChildList(*aPresContext, nsnull,
|
|
childItems.childList);
|
|
if (floaterList.childList) {
|
|
scrolledFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
}
|
|
scrollFrame->SetInitialChildList(*aPresContext, nsnull, scrolledFrame);
|
|
aNewFrame = scrollFrame;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructFrameByDisplayType(nsIPresContext* aPresContext,
|
|
const nsStyleDisplay* aDisplay,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsFrameItems& aFrameItems,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsAbsoluteItems& aFloatingItems,
|
|
PRBool aHaveFirstLetterStyle)
|
|
{
|
|
PRBool isAbsolutelyPositioned = PR_FALSE;
|
|
PRBool isFixedPositioned = PR_FALSE;
|
|
PRBool isFloating = PR_FALSE;
|
|
PRBool isBlock = aDisplay->IsBlockLevel();
|
|
nsIFrame* newFrame = nsnull; // the frame we construct
|
|
nsTableCreator tableCreator; // Used to make table frames.
|
|
nsresult rv = NS_OK;
|
|
|
|
// Get the position syle info
|
|
const nsStylePosition* position = (const nsStylePosition*)
|
|
aStyleContext->GetStyleData(eStyleStruct_Position);
|
|
|
|
// The frame is also a block if it's an inline frame that's floated or
|
|
// absolutely positioned
|
|
if (NS_STYLE_FLOAT_NONE != aDisplay->mFloats) {
|
|
isFloating = PR_TRUE;
|
|
}
|
|
if ((NS_STYLE_DISPLAY_INLINE == aDisplay->mDisplay) &&
|
|
(isFloating || position->IsAbsolutelyPositioned())) {
|
|
isBlock = PR_TRUE;
|
|
}
|
|
|
|
// If the frame is a block-level frame and is scrollable, then wrap it
|
|
// in a scroll frame.
|
|
// XXX Ignore tables for the time being
|
|
if ((isBlock && (aDisplay->mDisplay != NS_STYLE_DISPLAY_TABLE)) &&
|
|
IsScrollable(aPresContext, aDisplay)) {
|
|
|
|
// See if it's absolute positioned or fixed positioned
|
|
if (NS_STYLE_POSITION_ABSOLUTE == position->mPosition) {
|
|
isAbsolutelyPositioned = PR_TRUE;
|
|
} else if (NS_STYLE_POSITION_FIXED == position->mPosition) {
|
|
isFixedPositioned = PR_TRUE;
|
|
}
|
|
|
|
// Create a scroll frame
|
|
nsIFrame* scrollFrame;
|
|
NS_NewScrollFrame(scrollFrame);
|
|
|
|
// Initialize it
|
|
InitializeScrollFrame(scrollFrame, aPresContext, aContent, aParentFrame,
|
|
aStyleContext, aAbsoluteItems, newFrame,
|
|
aFixedItems, isAbsolutelyPositioned,
|
|
isFixedPositioned, PR_FALSE);
|
|
}
|
|
// See if the frame is absolute or fixed positioned
|
|
else if (position->IsAbsolutelyPositioned() &&
|
|
((NS_STYLE_DISPLAY_BLOCK == aDisplay->mDisplay) ||
|
|
(NS_STYLE_DISPLAY_INLINE == aDisplay->mDisplay) ||
|
|
(NS_STYLE_DISPLAY_LIST_ITEM == aDisplay->mDisplay))) {
|
|
|
|
if (NS_STYLE_POSITION_ABSOLUTE == position->mPosition) {
|
|
isAbsolutelyPositioned = PR_TRUE;
|
|
} else {
|
|
isFixedPositioned = PR_TRUE;
|
|
}
|
|
|
|
// Create an area frame
|
|
NS_NewAreaFrame(newFrame, NS_BLOCK_MARGIN_ROOT);
|
|
newFrame->Init(*aPresContext, aContent,
|
|
(isAbsolutelyPositioned
|
|
? aAbsoluteItems.containingBlock
|
|
: aFixedItems.containingBlock),
|
|
aStyleContext, nsnull);
|
|
|
|
// Create a view
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
aStyleContext, PR_FALSE);
|
|
|
|
// Process the child content. The area frame becomes a container for child
|
|
// frames that are absolutely positioned
|
|
nsAbsoluteItems absoluteItems(newFrame);
|
|
nsFrameItems childItems;
|
|
nsAbsoluteItems floaterList(newFrame);
|
|
|
|
ProcessChildren(aPresContext, aContent, newFrame, absoluteItems,
|
|
childItems, aFixedItems, floaterList, PR_TRUE);
|
|
|
|
// Set the frame's initial child list(s)
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull, childItems.childList);
|
|
if (nsnull != absoluteItems.childList) {
|
|
newFrame->SetInitialChildList(*aPresContext, nsLayoutAtoms::absoluteList,
|
|
absoluteItems.childList);
|
|
}
|
|
if (floaterList.childList) {
|
|
newFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
}
|
|
// See if the frame is floated, and it's a block or inline frame
|
|
else if (isFloating &&
|
|
((NS_STYLE_DISPLAY_BLOCK == aDisplay->mDisplay) ||
|
|
(NS_STYLE_DISPLAY_INLINE == aDisplay->mDisplay) ||
|
|
(NS_STYLE_DISPLAY_LIST_ITEM == aDisplay->mDisplay))) {
|
|
// Create an area frame
|
|
NS_NewAreaFrame(newFrame, NS_BLOCK_SHRINK_WRAP);
|
|
|
|
// Initialize the frame
|
|
newFrame->Init(*aPresContext, aContent, aParentFrame, aStyleContext, nsnull);
|
|
|
|
// See if we need to create a view
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
aStyleContext, PR_FALSE);
|
|
|
|
// Process the child content
|
|
nsFrameItems childItems;
|
|
nsAbsoluteItems floaterList(newFrame);
|
|
ProcessChildren(aPresContext, aContent, newFrame, aAbsoluteItems,
|
|
childItems, aFixedItems, floaterList, PR_TRUE);
|
|
|
|
// Set the frame's initial child list(s)
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull, childItems.childList);
|
|
if (floaterList.childList) {
|
|
newFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
}
|
|
// See if it's relatively positioned
|
|
else if (NS_STYLE_POSITION_RELATIVE == position->mPosition) {
|
|
// Is it block-level or inline-level?
|
|
if (NS_STYLE_DISPLAY_BLOCK == aDisplay->mDisplay) {
|
|
// Create an area frame. No space manager, though
|
|
NS_NewAreaFrame(newFrame, NS_AREA_NO_SPACE_MGR);
|
|
} else {
|
|
// Create a positioned inline frame
|
|
NS_NewPositionedInlineFrame(newFrame);
|
|
}
|
|
|
|
// Initialize the frame
|
|
newFrame->Init(*aPresContext, aContent, aParentFrame, aStyleContext, nsnull);
|
|
|
|
// Create a view
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
aStyleContext, PR_FALSE);
|
|
|
|
// Process the child content. Relatively positioned frames becomes a
|
|
// container for child frames that are positioned
|
|
nsAbsoluteItems absoluteItems(newFrame);
|
|
nsAbsoluteItems floaterList(newFrame);
|
|
nsFrameItems childItems;
|
|
|
|
if (NS_STYLE_DISPLAY_BLOCK == aDisplay->mDisplay) {
|
|
ProcessChildren(aPresContext, aContent, newFrame, absoluteItems,
|
|
childItems, aFixedItems, floaterList, PR_TRUE);
|
|
|
|
} else {
|
|
ProcessChildren(aPresContext, aContent, newFrame, absoluteItems,
|
|
childItems, aFixedItems, aFloatingItems, PR_TRUE);
|
|
}
|
|
|
|
// Set the frame's initial child list
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull, childItems.childList);
|
|
if (nsnull != absoluteItems.childList) {
|
|
newFrame->SetInitialChildList(*aPresContext, nsLayoutAtoms::absoluteList,
|
|
absoluteItems.childList);
|
|
}
|
|
if (floaterList.childList) {
|
|
newFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
}
|
|
// otherwise let the display property influence the frame type to create
|
|
else {
|
|
PRBool processChildren = PR_FALSE; // whether we should process child content
|
|
PRBool newFrameIsFloaterContainer = PR_FALSE;
|
|
PRBool haveFirstLetterStyle = PR_FALSE;
|
|
nsIFrame* ignore;
|
|
|
|
// Use the 'display' property to choose a frame type
|
|
switch (aDisplay->mDisplay) {
|
|
case NS_STYLE_DISPLAY_BLOCK:
|
|
case NS_STYLE_DISPLAY_LIST_ITEM:
|
|
case NS_STYLE_DISPLAY_RUN_IN:
|
|
case NS_STYLE_DISPLAY_COMPACT:
|
|
rv = NS_NewBlockFrame(newFrame, 0);
|
|
processChildren = PR_TRUE;
|
|
newFrameIsFloaterContainer = PR_TRUE;
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// See if the block has first-letter style applied to it...
|
|
haveFirstLetterStyle = HaveFirstLetterStyle(aPresContext, aContent,
|
|
aStyleContext);
|
|
}
|
|
break;
|
|
|
|
case NS_STYLE_DISPLAY_INLINE:
|
|
rv = NS_NewInlineFrame(newFrame);
|
|
processChildren = PR_TRUE;
|
|
haveFirstLetterStyle = aHaveFirstLetterStyle;
|
|
break;
|
|
|
|
case NS_STYLE_DISPLAY_TABLE:
|
|
{
|
|
nsIFrame* geometricParent = aParentFrame;
|
|
if (NS_STYLE_POSITION_ABSOLUTE == position->mPosition) {
|
|
isAbsolutelyPositioned = PR_TRUE;
|
|
aParentFrame = aAbsoluteItems.containingBlock;
|
|
}
|
|
if (NS_STYLE_POSITION_FIXED == position->mPosition) {
|
|
isFixedPositioned = PR_TRUE;
|
|
aParentFrame = aFixedItems.containingBlock;
|
|
}
|
|
rv = ConstructTableFrame(aPresContext, aContent, geometricParent, aStyleContext,
|
|
aAbsoluteItems, newFrame, aFixedItems, tableCreator);
|
|
// Note: table construction function takes care of initializing
|
|
// the frame, processing children, and setting the initial child
|
|
// list
|
|
goto nearly_done;
|
|
}
|
|
|
|
// the next 5 cases are only relevant if the parent is not a table, ConstructTableFrame handles children
|
|
case NS_STYLE_DISPLAY_TABLE_CAPTION:
|
|
{
|
|
rv = ConstructTableCaptionFrame(aPresContext, aContent, aParentFrame, aStyleContext,
|
|
aAbsoluteItems, newFrame, ignore, aFixedItems, tableCreator);
|
|
aFrameItems.AddChild(newFrame);
|
|
return rv;
|
|
}
|
|
case NS_STYLE_DISPLAY_TABLE_ROW_GROUP:
|
|
case NS_STYLE_DISPLAY_TABLE_HEADER_GROUP:
|
|
case NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP:
|
|
case NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP:
|
|
{
|
|
PRBool isRowGroup = (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP != aDisplay->mDisplay);
|
|
rv = ConstructTableGroupFrame(aPresContext, aContent, aParentFrame, aStyleContext,
|
|
aAbsoluteItems, isRowGroup, newFrame, ignore, aFixedItems, tableCreator);
|
|
aFrameItems.AddChild(newFrame);
|
|
return rv;
|
|
}
|
|
|
|
case NS_STYLE_DISPLAY_TABLE_COLUMN:
|
|
rv = ConstructTableColFrame(aPresContext, aContent, aParentFrame, aStyleContext,
|
|
aAbsoluteItems, newFrame, ignore, aFixedItems, tableCreator);
|
|
aFrameItems.AddChild(newFrame);
|
|
return rv;
|
|
|
|
|
|
case NS_STYLE_DISPLAY_TABLE_ROW:
|
|
rv = ConstructTableRowFrame(aPresContext, aContent, aParentFrame, aStyleContext,
|
|
aAbsoluteItems, newFrame, ignore, aFixedItems, tableCreator);
|
|
aFrameItems.AddChild(newFrame);
|
|
return rv;
|
|
|
|
case NS_STYLE_DISPLAY_TABLE_CELL:
|
|
{
|
|
nsIFrame* ignore2;
|
|
rv = ConstructTableCellFrame(aPresContext, aContent, aParentFrame, aStyleContext,
|
|
aAbsoluteItems, newFrame, ignore, ignore2,
|
|
aFixedItems, tableCreator);
|
|
aFrameItems.AddChild(newFrame);
|
|
return rv;
|
|
}
|
|
|
|
default:
|
|
// Don't create any frame for content that's not displayed...
|
|
break;
|
|
}
|
|
|
|
// If we succeeded in creating a frame then initialize the frame and
|
|
// process children if requested
|
|
if (NS_SUCCEEDED(rv) && (nsnull != newFrame)) {
|
|
newFrame->Init(*aPresContext, aContent, aParentFrame, aStyleContext, nsnull);
|
|
|
|
// See if we need to create a view, e.g. the frame is absolutely positioned
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
aStyleContext, PR_FALSE);
|
|
|
|
// Process the child content if requested
|
|
nsFrameItems childItems;
|
|
if (processChildren) {
|
|
if (newFrameIsFloaterContainer) {
|
|
nsAbsoluteItems floaterList(newFrame);
|
|
if (haveFirstLetterStyle) {
|
|
rv = ProcessBlockChildren(aPresContext, aContent, newFrame,
|
|
aAbsoluteItems, childItems, aFixedItems,
|
|
aFloatingItems, PR_TRUE);
|
|
}
|
|
else {
|
|
rv = ProcessChildren(aPresContext, aContent, newFrame,
|
|
aAbsoluteItems, childItems, aFixedItems,
|
|
aFloatingItems, PR_TRUE);
|
|
}
|
|
|
|
// Set the frame's initial child list
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull,
|
|
childItems.childList);
|
|
if (floaterList.childList) {
|
|
newFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
}
|
|
else {
|
|
if (haveFirstLetterStyle) {
|
|
rv = ProcessBlockChildren(aPresContext, aContent, newFrame,
|
|
aAbsoluteItems, childItems, aFixedItems,
|
|
aFloatingItems, PR_TRUE);
|
|
}
|
|
else {
|
|
rv = ProcessChildren(aPresContext, aContent, newFrame,
|
|
aAbsoluteItems, childItems, aFixedItems,
|
|
aFloatingItems, PR_TRUE);
|
|
}
|
|
|
|
// Set the frame's initial child list
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull,
|
|
childItems.childList);
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
// If the frame is absolutely positioned, then create a placeholder frame
|
|
nearly_done:
|
|
if (isAbsolutelyPositioned || isFixedPositioned) {
|
|
nsIFrame* placeholderFrame;
|
|
|
|
CreatePlaceholderFrameFor(aPresContext, aContent, newFrame, aStyleContext,
|
|
aParentFrame, &placeholderFrame);
|
|
|
|
// Add the positioned frame to its containing block's list of child frames
|
|
if (isAbsolutelyPositioned) {
|
|
aAbsoluteItems.AddChild(newFrame);
|
|
} else {
|
|
aFixedItems.AddChild(newFrame);
|
|
}
|
|
|
|
// Add the placeholder frame to the flow
|
|
aFrameItems.AddChild(placeholderFrame);
|
|
|
|
} else if (isFloating) {
|
|
nsIFrame* placeholderFrame;
|
|
CreatePlaceholderFrameFor(aPresContext, aContent, newFrame,
|
|
aStyleContext, aParentFrame, &placeholderFrame);
|
|
|
|
// Add the floating frame to its containing block's list of child frames
|
|
aFloatingItems.AddChild(newFrame);
|
|
|
|
// Add the placeholder frame to the flow
|
|
aFrameItems.AddChild(placeholderFrame);
|
|
} else if (nsnull != newFrame) {
|
|
// Add the frame we just created to the flowed list
|
|
aFrameItems.AddChild(newFrame);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::GetAdjustedParentFrame(nsIFrame* aCurrentParentFrame,
|
|
PRUint8 aChildDisplayType,
|
|
nsIFrame*& aNewParentFrame)
|
|
{
|
|
NS_PRECONDITION(nsnull!=aCurrentParentFrame, "bad arg aCurrentParentFrame");
|
|
|
|
nsresult rv = NS_OK;
|
|
// by default, the new parent frame is the given current parent frame
|
|
aNewParentFrame = aCurrentParentFrame;
|
|
if (nsnull != aCurrentParentFrame) {
|
|
const nsStyleDisplay* currentParentDisplay;
|
|
aCurrentParentFrame->GetStyleData(eStyleStruct_Display, (const nsStyleStruct *&)currentParentDisplay);
|
|
if (NS_STYLE_DISPLAY_TABLE == currentParentDisplay->mDisplay) {
|
|
if (NS_STYLE_DISPLAY_TABLE_CAPTION != aChildDisplayType) {
|
|
nsIFrame *innerTableFrame = nsnull;
|
|
aCurrentParentFrame->FirstChild(nsnull, &innerTableFrame);
|
|
if (nsnull != innerTableFrame) {
|
|
const nsStyleDisplay* innerTableDisplay;
|
|
innerTableFrame->GetStyleData(eStyleStruct_Display, (const nsStyleStruct *&)innerTableDisplay);
|
|
if (NS_STYLE_DISPLAY_TABLE == innerTableDisplay->mDisplay) {
|
|
// we were given the outer table frame, use the inner table frame
|
|
aNewParentFrame=innerTableFrame;
|
|
} // else we were already given the inner table frame
|
|
} // else the current parent has no children and cannot be an outer table frame
|
|
} else { // else the child is a caption and really belongs to the outer table frame
|
|
nsIFrame* parFrame = nsnull;
|
|
aCurrentParentFrame->GetParent(&parFrame);
|
|
const nsStyleDisplay* parDisplay;
|
|
aCurrentParentFrame->GetStyleData(eStyleStruct_Display, (const nsStyleStruct *&)parDisplay);
|
|
if (NS_STYLE_DISPLAY_TABLE == parDisplay->mDisplay) {
|
|
aNewParentFrame = parFrame; // aNewParentFrame was an inner frame
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
rv = NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
NS_POSTCONDITION(nsnull!=aNewParentFrame, "bad result null aNewParentFrame");
|
|
return rv;
|
|
}
|
|
|
|
PRBool
|
|
nsCSSFrameConstructor::IsScrollable(nsIPresContext* aPresContext,
|
|
const nsStyleDisplay* aDisplay)
|
|
{
|
|
// For the time being it's scrollable if the overflow property is auto or
|
|
// scroll, regardless of whether the width or height is fixed in size
|
|
if ((NS_STYLE_OVERFLOW_SCROLL == aDisplay->mOverflow) ||
|
|
(NS_STYLE_OVERFLOW_AUTO == aDisplay->mOverflow)) {
|
|
return PR_TRUE;
|
|
}
|
|
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ResolveStyleContext(nsIPresContext* aPresContext,
|
|
nsIFrame* aParentFrame,
|
|
nsIContent* aContent,
|
|
nsIAtom* aTag,
|
|
nsIStyleContext** aStyleContext)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
// Resolve the style context based on the content object and the parent
|
|
// style context
|
|
nsCOMPtr<nsIStyleContext> parentStyleContext;
|
|
|
|
aParentFrame->GetStyleContext(getter_AddRefs(parentStyleContext));
|
|
if (nsLayoutAtoms::textTagName == aTag) {
|
|
// Use a special pseudo element style context for text
|
|
nsCOMPtr<nsIContent> parentContent;
|
|
if (nsnull != aParentFrame) {
|
|
aParentFrame->GetContent(getter_AddRefs(parentContent));
|
|
}
|
|
rv = aPresContext->ResolvePseudoStyleContextFor(parentContent,
|
|
nsHTMLAtoms::textPseudo,
|
|
parentStyleContext,
|
|
PR_FALSE,
|
|
aStyleContext);
|
|
} else if (nsLayoutAtoms::commentTagName == aTag) {
|
|
// Use a special pseudo element style context for comments
|
|
nsCOMPtr<nsIContent> parentContent;
|
|
if (nsnull != aParentFrame) {
|
|
aParentFrame->GetContent(getter_AddRefs(parentContent));
|
|
}
|
|
rv = aPresContext->ResolvePseudoStyleContextFor(parentContent,
|
|
nsHTMLAtoms::commentPseudo,
|
|
parentStyleContext,
|
|
PR_FALSE,
|
|
aStyleContext);
|
|
} else if (nsLayoutAtoms::processingInstructionTagName == aTag) {
|
|
// Use a special pseudo element style context for comments
|
|
nsCOMPtr<nsIContent> parentContent;
|
|
if (nsnull != aParentFrame) {
|
|
aParentFrame->GetContent(getter_AddRefs(parentContent));
|
|
}
|
|
rv = aPresContext->ResolvePseudoStyleContextFor(parentContent,
|
|
nsHTMLAtoms::processingInstructionPseudo,
|
|
parentStyleContext,
|
|
PR_FALSE,
|
|
aStyleContext);
|
|
} else {
|
|
rv = aPresContext->ResolveStyleContextFor(aContent, parentStyleContext,
|
|
PR_FALSE,
|
|
aStyleContext);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsFrameItems& aFrameItems,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsAbsoluteItems& aFloatingItems,
|
|
PRBool aHaveFirstLetterStyle)
|
|
{
|
|
NS_PRECONDITION(nsnull != aParentFrame, "no parent frame");
|
|
|
|
nsresult rv;
|
|
|
|
// Get the element's tag
|
|
nsCOMPtr<nsIAtom> tag;
|
|
aContent->GetTag(*getter_AddRefs(tag));
|
|
|
|
nsCOMPtr<nsIStyleContext> styleContext;
|
|
rv = ResolveStyleContext(aPresContext, aParentFrame, aContent, tag, getter_AddRefs(styleContext));
|
|
|
|
#ifdef chris_needs_to_remove_this
|
|
// Resolve the style context based on the content object and the parent
|
|
// style context
|
|
nsCOMPtr<nsIStyleContext> styleContext;
|
|
nsCOMPtr<nsIStyleContext> parentStyleContext;
|
|
|
|
aParentFrame->GetStyleContext(getter_AddRefs(parentStyleContext));
|
|
if (nsLayoutAtoms::textTagName == tag) {
|
|
// Use a special pseudo element style context for text
|
|
nsCOMPtr<nsIContent> parentContent;
|
|
if (nsnull != aParentFrame) {
|
|
aParentFrame->GetContent(getter_AddRefs(parentContent));
|
|
}
|
|
rv = aPresContext->ResolvePseudoStyleContextFor(parentContent,
|
|
nsHTMLAtoms::textPseudo,
|
|
parentStyleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
} else if (nsLayoutAtoms::commentTagName == tag) {
|
|
// Use a special pseudo element style context for comments
|
|
nsCOMPtr<nsIContent> parentContent;
|
|
if (nsnull != aParentFrame) {
|
|
aParentFrame->GetContent(getter_AddRefs(parentContent));
|
|
}
|
|
rv = aPresContext->ResolvePseudoStyleContextFor(parentContent,
|
|
nsHTMLAtoms::commentPseudo,
|
|
parentStyleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
} else if (nsLayoutAtoms::processingInstructionTagName == tag) {
|
|
// Use a special pseudo element style context for comments
|
|
nsCOMPtr<nsIContent> parentContent;
|
|
if (nsnull != aParentFrame) {
|
|
aParentFrame->GetContent(getter_AddRefs(parentContent));
|
|
}
|
|
rv = aPresContext->ResolvePseudoStyleContextFor(parentContent,
|
|
nsHTMLAtoms::processingInstructionPseudo,
|
|
parentStyleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
} else {
|
|
rv = aPresContext->ResolveStyleContextFor(aContent, parentStyleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
}
|
|
#endif
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// Pre-check for display "none" - if we find that, don't create
|
|
// any frame at all
|
|
const nsStyleDisplay* display = (const nsStyleDisplay*)
|
|
styleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
if (NS_STYLE_DISPLAY_NONE != display->mDisplay) {
|
|
|
|
nsIFrame* lastChild = aFrameItems.lastChild;
|
|
|
|
// Handle specific frame types
|
|
rv = ConstructFrameByTag(aPresContext, aContent, aParentFrame, tag,
|
|
styleContext, aAbsoluteItems, aFrameItems,
|
|
aFixedItems, aFloatingItems);
|
|
|
|
#ifdef INCLUDE_XUL
|
|
// Failing to find a matching HTML frame, try creating a specialized
|
|
// XUL frame. This is temporary, pending planned factoring of this
|
|
// whole process into separate, pluggable steps.
|
|
if (NS_SUCCEEDED(rv) && ((nsnull == aFrameItems.childList) ||
|
|
(lastChild == aFrameItems.lastChild))) {
|
|
PRBool haltProcessing = PR_FALSE;
|
|
rv = ConstructXULFrame(aPresContext, aContent, aParentFrame, tag,
|
|
styleContext, aAbsoluteItems, aFrameItems,
|
|
aFixedItems, aFloatingItems, haltProcessing);
|
|
if (haltProcessing) {
|
|
return rv;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (NS_SUCCEEDED(rv) && ((nsnull == aFrameItems.childList) ||
|
|
(lastChild == aFrameItems.lastChild))) {
|
|
// When there is no explicit frame to create, assume it's a
|
|
// container and let display style dictate the rest
|
|
rv = ConstructFrameByDisplayType(aPresContext, display, aContent,
|
|
aParentFrame, styleContext,
|
|
aAbsoluteItems, aFrameItems,
|
|
aFixedItems, aFloatingItems,
|
|
aHaveFirstLetterStyle);
|
|
}
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::ReconstructDocElementHierarchy(nsIPresContext* aPresContext)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
|
|
if (nsnull != mDocument) {
|
|
nsCOMPtr<nsIContent> rootContent(dont_AddRef(mDocument->GetRootContent()));
|
|
|
|
if (rootContent) {
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
rv = aPresContext->GetShell(getter_AddRefs(shell));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsIFrame* docElementFrame;
|
|
|
|
// Get the frame that corresponds to the document element
|
|
shell->GetPrimaryFrameFor(rootContent, &docElementFrame);
|
|
|
|
if (nsnull != docElementFrame) {
|
|
nsIFrame* docParentFrame;
|
|
docElementFrame->GetParent(&docParentFrame);
|
|
|
|
if (nsnull != docParentFrame) {
|
|
// Remove the old document element hieararchy
|
|
rv = docParentFrame->RemoveFrame(*aPresContext,
|
|
*shell,
|
|
nsnull,
|
|
docElementFrame);
|
|
// XXX Remove any existing fixed items...
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsIFrame* newChild;
|
|
nsCOMPtr<nsIStyleContext> rootPseudoStyle;
|
|
nsAbsoluteItems fixedItems(mFixedContainingBlock);
|
|
|
|
docParentFrame->GetStyleContext(getter_AddRefs(rootPseudoStyle));
|
|
rv = ConstructDocElementFrame(aPresContext, rootContent,
|
|
docParentFrame, rootPseudoStyle,
|
|
newChild, fixedItems);
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
rv = docParentFrame->InsertFrames(*aPresContext, *shell, nsnull,
|
|
nsnull, newChild);
|
|
|
|
// Tell the fixed containing block about its 'fixed' frames
|
|
if (nsnull != fixedItems.childList) {
|
|
mFixedContainingBlock->InsertFrames(*aPresContext, *shell,
|
|
nsLayoutAtoms::fixedList, nsnull, fixedItems.childList);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
nsIFrame*
|
|
nsCSSFrameConstructor::GetFrameFor(nsIPresShell* aPresShell, nsIPresContext* aPresContext,
|
|
nsIContent* aContent)
|
|
{
|
|
// Get the primary frame associated with the content
|
|
nsIFrame* frame;
|
|
aPresShell->GetPrimaryFrameFor(aContent, &frame);
|
|
|
|
if (nsnull != frame) {
|
|
// If the primary frame is a scroll frame, then get the scrolled frame.
|
|
// That's the frame that gets the reflow command
|
|
const nsStyleDisplay* display;
|
|
frame->GetStyleData(eStyleStruct_Display, (const nsStyleStruct*&)display);
|
|
|
|
if (display->IsBlockLevel() && IsScrollable(aPresContext, display)) {
|
|
frame->FirstChild(nsnull, &frame);
|
|
} else if (NS_STYLE_DISPLAY_TABLE == display->mDisplay) { // we got an outer table frame, need an inner
|
|
frame->FirstChild(nsnull, &frame); // the inner frame is always the 1st child
|
|
}
|
|
}
|
|
|
|
return frame;
|
|
}
|
|
|
|
nsIFrame*
|
|
nsCSSFrameConstructor::GetAbsoluteContainingBlock(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame)
|
|
{
|
|
NS_PRECONDITION(nsnull != mInitialContainingBlock, "no initial containing block");
|
|
|
|
// Starting with aFrame, look for a frame that is absolutely positioned or
|
|
// relatively positioned
|
|
nsIFrame* containingBlock = nsnull;
|
|
for (nsIFrame* frame = aFrame; frame; frame->GetParent(&frame)) {
|
|
const nsStylePosition* position;
|
|
|
|
// Is it positioned?
|
|
frame->GetStyleData(eStyleStruct_Position, (const nsStyleStruct*&)position);
|
|
if ((position->mPosition == NS_STYLE_POSITION_ABSOLUTE) ||
|
|
(position->mPosition == NS_STYLE_POSITION_RELATIVE)) {
|
|
const nsStyleDisplay* display;
|
|
|
|
// If it's a table then ignore it, because for the time being tables
|
|
// are not containers for absolutely positioned child frames
|
|
frame->GetStyleData(eStyleStruct_Display, (const nsStyleStruct*&)display);
|
|
if (display->mDisplay != NS_STYLE_DISPLAY_TABLE) {
|
|
nsIAtom* frameType;
|
|
frame->GetFrameType(&frameType);
|
|
|
|
if (nsLayoutAtoms::scrollFrame == frameType) {
|
|
// We want the scrolled frame, not the scroll frame
|
|
nsIFrame* scrolledFrame;
|
|
frame->FirstChild(nsnull, &scrolledFrame);
|
|
NS_RELEASE(frameType);
|
|
if (scrolledFrame) {
|
|
scrolledFrame->GetFrameType(&frameType);
|
|
if (nsLayoutAtoms::areaFrame == frameType) {
|
|
containingBlock = scrolledFrame;
|
|
}
|
|
}
|
|
|
|
} else if ((nsLayoutAtoms::areaFrame == frameType) ||
|
|
(nsLayoutAtoms::positionedInlineFrame == frameType)) {
|
|
containingBlock = frame;
|
|
}
|
|
NS_RELEASE(frameType);
|
|
}
|
|
}
|
|
|
|
// See if we found a containing block
|
|
if (containingBlock) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If we didn't find an absolutely positioned containing block, then use the
|
|
// initial containing block
|
|
if (!containingBlock) {
|
|
containingBlock = mInitialContainingBlock;
|
|
}
|
|
|
|
return containingBlock;
|
|
}
|
|
|
|
nsIFrame*
|
|
nsCSSFrameConstructor::GetFloaterContainingBlock(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame)
|
|
{
|
|
NS_PRECONDITION(mInitialContainingBlock, "no initial containing block");
|
|
|
|
// Starting with aFrame, look for a frame that is a real block frame
|
|
nsIFrame* containingBlock = aFrame;
|
|
while (nsnull != containingBlock) {
|
|
const nsStyleDisplay* display;
|
|
containingBlock->GetStyleData(eStyleStruct_Display,
|
|
(const nsStyleStruct*&)display);
|
|
if ((NS_STYLE_DISPLAY_BLOCK == display->mDisplay) ||
|
|
(NS_STYLE_DISPLAY_LIST_ITEM == display->mDisplay)) {
|
|
break;
|
|
}
|
|
|
|
// Continue walking up the hierarchy
|
|
containingBlock->GetParent(&containingBlock);
|
|
}
|
|
|
|
// If we didn't find a containing block, then use the initial
|
|
// containing block
|
|
if (nsnull == containingBlock) {
|
|
containingBlock = mInitialContainingBlock;
|
|
}
|
|
return containingBlock;
|
|
}
|
|
|
|
// Helper function to determine whether a given frame is generated content
|
|
// for the specified content object. Returns PR_TRUE if the frame is associated
|
|
// with generated content and PR_FALSE otherwise
|
|
static inline PRBool
|
|
IsGeneratedContentFor(nsIContent* aContent, nsIFrame* aFrame)
|
|
{
|
|
nsFrameState state;
|
|
PRBool result = PR_FALSE;
|
|
|
|
// First check the frame state bit
|
|
aFrame->GetFrameState(&state);
|
|
if (state & NS_FRAME_GENERATED_CONTENT) {
|
|
nsIContent* content;
|
|
|
|
// Check that it has the same content pointer
|
|
aFrame->GetContent(&content);
|
|
result = (content == aContent);
|
|
NS_IF_RELEASE(content);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
// This function is called by ContentAppended() and ContentInserted() when
|
|
// appending flowed frames to a parent's principal child list. It handles the
|
|
// case where the parent frame has :after pseudo-element generated content
|
|
nsresult
|
|
nsCSSFrameConstructor::AppendFrames(nsIPresContext* aPresContext,
|
|
nsIPresShell* aPresShell,
|
|
nsIContent* aContainer,
|
|
nsIFrame* aParentFrame,
|
|
nsIFrame* aFrameList)
|
|
{
|
|
nsIFrame* firstChild;
|
|
aParentFrame->FirstChild(nsnull, &firstChild);
|
|
nsFrameList frames(firstChild);
|
|
nsIFrame* lastChild = frames.LastChild();
|
|
|
|
// See if the parent has an :after pseudo-element
|
|
if (lastChild && IsGeneratedContentFor(aContainer, lastChild)) {
|
|
// Insert the frames before the :after pseudo-element
|
|
return aParentFrame->InsertFrames(*aPresContext, *aPresShell,
|
|
nsnull, frames.GetPrevSiblingFor(lastChild),
|
|
aFrameList);
|
|
}
|
|
|
|
// Append the frames to the end of the parent's child list
|
|
return aParentFrame->AppendFrames(*aPresContext, *aPresShell,
|
|
nsnull, aFrameList);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::ContentAppended(nsIPresContext* aPresContext,
|
|
nsIContent* aContainer,
|
|
PRInt32 aNewIndexInContainer)
|
|
{
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
aPresContext->GetShell(getter_AddRefs(shell));
|
|
nsIFrame* parentFrame = GetFrameFor(shell, aPresContext, aContainer);
|
|
|
|
#ifdef NS_DEBUG
|
|
if (nsnull == parentFrame) {
|
|
NS_WARNING("Ignoring content-appended notification with no matching frame...");
|
|
}
|
|
#endif
|
|
if (nsnull != parentFrame) {
|
|
// Get the parent frame's last-in-flow
|
|
nsIFrame* nextInFlow = parentFrame;
|
|
while (nsnull != nextInFlow) {
|
|
parentFrame->GetNextInFlow(&nextInFlow);
|
|
if (nsnull != nextInFlow) {
|
|
parentFrame = nextInFlow;
|
|
}
|
|
}
|
|
|
|
// Get the containing block for absolutely positioned elements
|
|
nsIFrame* absoluteContainingBlock =
|
|
GetAbsoluteContainingBlock(aPresContext, parentFrame);
|
|
|
|
nsIFrame* floaterContainingBlock =
|
|
GetFloaterContainingBlock(aPresContext, parentFrame);
|
|
|
|
// Create some new frames
|
|
PRInt32 count;
|
|
nsIFrame* firstAppendedFrame = nsnull;
|
|
nsAbsoluteItems absoluteItems(absoluteContainingBlock);
|
|
nsAbsoluteItems fixedItems(mFixedContainingBlock);
|
|
nsAbsoluteItems floaterList(floaterContainingBlock);
|
|
nsFrameItems frameItems;
|
|
|
|
aContainer->ChildCount(count);
|
|
|
|
for (PRInt32 i = aNewIndexInContainer; i < count; i++) {
|
|
nsCOMPtr<nsIContent> child;
|
|
|
|
aContainer->ChildAt(i, *getter_AddRefs(child));
|
|
ConstructFrame(aPresContext, child, parentFrame, absoluteItems,
|
|
frameItems, fixedItems, floaterList, PR_FALSE);
|
|
}
|
|
|
|
// Adjust parent frame for table inner/outer frame
|
|
// we need to do this here because we need both the parent frame and the constructed frame
|
|
nsresult result = NS_OK;
|
|
nsIFrame *adjustedParentFrame=parentFrame;
|
|
firstAppendedFrame = frameItems.childList;
|
|
if (nsnull != firstAppendedFrame) {
|
|
const nsStyleDisplay* firstAppendedFrameDisplay;
|
|
firstAppendedFrame->GetStyleData(eStyleStruct_Display,
|
|
(const nsStyleStruct *&)firstAppendedFrameDisplay);
|
|
result = GetAdjustedParentFrame(parentFrame,
|
|
firstAppendedFrameDisplay->mDisplay,
|
|
adjustedParentFrame);
|
|
}
|
|
|
|
// Notify the parent frame passing it the list of new frames
|
|
if (NS_SUCCEEDED(result)) {
|
|
// Append the flowed frames to the principal child list
|
|
AppendFrames(aPresContext, shell, aContainer, adjustedParentFrame,
|
|
firstAppendedFrame);
|
|
|
|
// If there are new absolutely positioned child frames, then notify
|
|
// the parent
|
|
// XXX We can't just assume these frames are being appended, we need to
|
|
// determine where in the list they should be inserted...
|
|
if (nsnull != absoluteItems.childList) {
|
|
absoluteItems.containingBlock->AppendFrames(*aPresContext, *shell,
|
|
nsLayoutAtoms::absoluteList,
|
|
absoluteItems.childList);
|
|
}
|
|
|
|
// If there are new fixed positioned child frames, then notify
|
|
// the parent
|
|
// XXX We can't just assume these frames are being appended, we need to
|
|
// determine where in the list they should be inserted...
|
|
if (nsnull != fixedItems.childList) {
|
|
fixedItems.containingBlock->AppendFrames(*aPresContext, *shell,
|
|
nsLayoutAtoms::fixedList,
|
|
fixedItems.childList);
|
|
}
|
|
|
|
// If there are new floating child frames, then notify
|
|
// the parent
|
|
// XXX We can't just assume these frames are being appended, we need to
|
|
// determine where in the list they should be inserted...
|
|
if (floaterList.childList) {
|
|
floaterList.containingBlock->AppendFrames(*aPresContext, *shell,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
static nsIFrame*
|
|
FindPreviousSibling(nsIPresShell* aPresShell,
|
|
nsIContent* aContainer,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
nsIFrame* prevSibling = nsnull;
|
|
|
|
// Note: not all content objects are associated with a frame (e.g., if their
|
|
// 'display' type is 'hidden') so keep looking until we find a previous frame
|
|
for (PRInt32 index = aIndexInContainer - 1; index >= 0; index--) {
|
|
nsCOMPtr<nsIContent> precedingContent;
|
|
|
|
aContainer->ChildAt(index, *getter_AddRefs(precedingContent));
|
|
aPresShell->GetPrimaryFrameFor(precedingContent, &prevSibling);
|
|
|
|
if (nsnull != prevSibling) {
|
|
// The frame may have a next-in-flow. Get the last-in-flow
|
|
nsIFrame* nextInFlow;
|
|
do {
|
|
prevSibling->GetNextInFlow(&nextInFlow);
|
|
if (nsnull != nextInFlow) {
|
|
prevSibling = nextInFlow;
|
|
}
|
|
} while (nsnull != nextInFlow);
|
|
|
|
// Did we really get the *right* frame?
|
|
const nsStyleDisplay* display;
|
|
prevSibling->GetStyleData(eStyleStruct_Display,
|
|
(const nsStyleStruct*&)display);
|
|
if (display->IsFloating()) {
|
|
// Nope. Get the place-holder instead
|
|
nsIFrame* placeholderFrame;
|
|
aPresShell->GetPlaceholderFrameFor(prevSibling, &placeholderFrame);
|
|
NS_ASSERTION(nsnull != placeholderFrame, "yikes");
|
|
prevSibling = placeholderFrame;
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
return prevSibling;
|
|
}
|
|
|
|
static nsIFrame*
|
|
FindNextSibling(nsIPresShell* aPresShell,
|
|
nsIContent* aContainer,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
nsIFrame* nextSibling = nsnull;
|
|
|
|
// Note: not all content objects are associated with a frame (e.g., if their
|
|
// 'display' type is 'hidden') so keep looking until we find a previous frame
|
|
PRInt32 count;
|
|
aContainer->ChildCount(count);
|
|
for (PRInt32 index = aIndexInContainer + 1; index < count; index++) {
|
|
nsCOMPtr<nsIContent> nextContent;
|
|
|
|
aContainer->ChildAt(index, *getter_AddRefs(nextContent));
|
|
aPresShell->GetPrimaryFrameFor(nextContent, &nextSibling);
|
|
|
|
if (nsnull != nextSibling) {
|
|
// The frame may have a next-in-flow. Get the first-in-flow
|
|
nsIFrame* prevInFlow;
|
|
do {
|
|
nextSibling->GetPrevInFlow(&prevInFlow);
|
|
if (nsnull != prevInFlow) {
|
|
nextSibling = prevInFlow;
|
|
}
|
|
} while (nsnull != prevInFlow);
|
|
|
|
// Did we really get the *right* frame?
|
|
const nsStyleDisplay* display;
|
|
nextSibling->GetStyleData(eStyleStruct_Display,
|
|
(const nsStyleStruct*&)display);
|
|
if (display->IsFloating()) {
|
|
// Nope. Get the place-holder instead
|
|
nsIFrame* placeholderFrame;
|
|
aPresShell->GetPlaceholderFrameFor(nextSibling, &placeholderFrame);
|
|
NS_ASSERTION(nsnull != placeholderFrame, "yikes");
|
|
nextSibling = placeholderFrame;
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
return nextSibling;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::ContentInserted(nsIPresContext* aPresContext,
|
|
nsIContent* aContainer,
|
|
nsIContent* aChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
aPresContext->GetShell(getter_AddRefs(shell));
|
|
nsresult rv = NS_OK;
|
|
|
|
// If we have a null parent, then this must be the document element
|
|
// being inserted
|
|
if (nsnull == aContainer) {
|
|
NS_PRECONDITION(nsnull == mInitialContainingBlock, "initial containing block already created");
|
|
nsIContent* docElement = mDocument->GetRootContent();
|
|
|
|
// Get the style context of the containing block frame
|
|
nsCOMPtr<nsIStyleContext> containerStyle;
|
|
mDocElementContainingBlock->GetStyleContext(getter_AddRefs(containerStyle));
|
|
|
|
// Create frames for the document element and its child elements
|
|
nsIFrame* docElementFrame;
|
|
nsAbsoluteItems fixedItems(mFixedContainingBlock);
|
|
ConstructDocElementFrame(aPresContext,
|
|
docElement,
|
|
mDocElementContainingBlock,
|
|
containerStyle,
|
|
docElementFrame,
|
|
fixedItems);
|
|
NS_IF_RELEASE(docElement);
|
|
|
|
// Set the initial child list for the parent
|
|
mDocElementContainingBlock->SetInitialChildList(*aPresContext,
|
|
nsnull,
|
|
docElementFrame);
|
|
|
|
// Tell the fixed containing block about its 'fixed' frames
|
|
if (nsnull != fixedItems.childList) {
|
|
mFixedContainingBlock->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::fixedList,
|
|
fixedItems.childList);
|
|
}
|
|
|
|
}
|
|
else {
|
|
// Find the frame that precedes the insertion point.
|
|
nsIFrame* prevSibling = FindPreviousSibling(shell, aContainer, aIndexInContainer);
|
|
nsIFrame* nextSibling = nsnull;
|
|
PRBool isAppend = PR_FALSE;
|
|
|
|
// If there is no previous sibling, then find the frame that follows
|
|
if (nsnull == prevSibling) {
|
|
nextSibling = FindNextSibling(shell, aContainer, aIndexInContainer);
|
|
}
|
|
|
|
// Get the geometric parent.
|
|
nsIFrame* parentFrame;
|
|
if ((nsnull == prevSibling) && (nsnull == nextSibling)) {
|
|
|
|
#ifdef INCLUDE_XUL
|
|
// Need to (for XUL only) do a special check for the treechildren tag
|
|
PRInt32 nameSpaceID;
|
|
if (NS_SUCCEEDED(aContainer->GetNameSpaceID(nameSpaceID)) &&
|
|
nameSpaceID == nsXULAtoms::nameSpaceID) {
|
|
// See if we're the treechildren tag. This tag is treated differently,
|
|
// since it has no corresponding frame, but may have children that have
|
|
// frames (the whole hierarchical content model vs. flat table frame model
|
|
// problem).
|
|
nsIAtom* tag;
|
|
aContainer->GetTag(tag);
|
|
nsString tagName;
|
|
tag->ToString(tagName);
|
|
if (tagName == "treechildren")
|
|
{
|
|
// Retrieve the parent treeitem, and then obtain its frame. This is
|
|
// the prevSibling frame that we should use.
|
|
nsCOMPtr<nsIContent> parentItem;
|
|
aContainer->GetParent(*getter_AddRefs(parentItem));
|
|
|
|
shell->GetPrimaryFrameFor(parentItem, &prevSibling);
|
|
prevSibling->GetParent(&parentFrame);
|
|
// XXX: Optimize for the lazy frame instantiation case. Need to bail
|
|
// if our frame isn't visible
|
|
}
|
|
else
|
|
{
|
|
// No previous or next sibling so treat this like an appended frame.
|
|
isAppend = PR_TRUE;
|
|
shell->GetPrimaryFrameFor(aContainer, &parentFrame);
|
|
}
|
|
}
|
|
else {
|
|
#endif // INCLUDE_XUL
|
|
|
|
// No previous or next sibling so treat this like an appended frame.
|
|
isAppend = PR_TRUE;
|
|
shell->GetPrimaryFrameFor(aContainer, &parentFrame);
|
|
#ifdef INCLUDE_XUL
|
|
}
|
|
#endif
|
|
} else {
|
|
// Use the prev sibling if we have it; otherwise use the next sibling
|
|
if (nsnull != prevSibling) {
|
|
prevSibling->GetParent(&parentFrame);
|
|
} else {
|
|
nextSibling->GetParent(&parentFrame);
|
|
}
|
|
}
|
|
|
|
// Construct a new frame
|
|
if (nsnull != parentFrame) {
|
|
// Get the containing block for absolutely positioned elements
|
|
nsIFrame* absoluteContainingBlock =
|
|
GetAbsoluteContainingBlock(aPresContext, parentFrame);
|
|
|
|
// Get the containing block for floating elements
|
|
nsIFrame* floaterContainingBlock =
|
|
GetFloaterContainingBlock(aPresContext, parentFrame);
|
|
|
|
nsAbsoluteItems absoluteItems(absoluteContainingBlock);
|
|
nsAbsoluteItems floaterList(floaterContainingBlock);
|
|
nsFrameItems frameItems;
|
|
nsAbsoluteItems fixedItems(mFixedContainingBlock);
|
|
rv = ConstructFrame(aPresContext, aChild, parentFrame, absoluteItems,
|
|
frameItems, fixedItems, floaterList, PR_FALSE);
|
|
|
|
nsIFrame* newFrame = frameItems.childList;
|
|
|
|
if (NS_SUCCEEDED(rv) && (nsnull != newFrame)) {
|
|
// Notify the parent frame
|
|
if (isAppend) {
|
|
rv = AppendFrames(aPresContext, shell, aContainer, parentFrame, newFrame);
|
|
} else {
|
|
if (!prevSibling) {
|
|
// We're inserting the new frame as the first child. See if the
|
|
// parent has a :before pseudo-element
|
|
nsIFrame* firstChild;
|
|
parentFrame->FirstChild(nsnull, &firstChild);
|
|
|
|
if (IsGeneratedContentFor(aContainer, firstChild)) {
|
|
// Insert the new frames after the :before pseudo-element
|
|
prevSibling = firstChild;
|
|
}
|
|
}
|
|
rv = parentFrame->InsertFrames(*aPresContext, *shell, nsnull,
|
|
prevSibling, newFrame);
|
|
}
|
|
|
|
// If there are new absolutely positioned child frames, then notify
|
|
// the parent
|
|
// XXX We can't just assume these frames are being appended, we need to
|
|
// determine where in the list they should be inserted...
|
|
if (nsnull != absoluteItems.childList) {
|
|
rv = absoluteItems.containingBlock->AppendFrames(*aPresContext, *shell,
|
|
nsLayoutAtoms::absoluteList,
|
|
absoluteItems.childList);
|
|
}
|
|
|
|
// If there are new fixed positioned child frames, then notify
|
|
// the parent
|
|
// XXX We can't just assume these frames are being appended, we need to
|
|
// determine where in the list they should be inserted...
|
|
if (nsnull != fixedItems.childList) {
|
|
rv = fixedItems.containingBlock->AppendFrames(*aPresContext, *shell,
|
|
nsLayoutAtoms::fixedList,
|
|
fixedItems.childList);
|
|
}
|
|
|
|
// If there are new floating child frames, then notify
|
|
// the parent
|
|
// XXX We can't just assume these frames are being appended, we need to
|
|
// determine where in the list they should be inserted...
|
|
if (floaterList.childList) {
|
|
rv = floaterList.containingBlock->AppendFrames(*aPresContext, *shell,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::ContentReplaced(nsIPresContext* aPresContext,
|
|
nsIContent* aContainer,
|
|
nsIContent* aOldChild,
|
|
nsIContent* aNewChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
// XXX For now, do a brute force remove and insert.
|
|
nsresult res = ContentRemoved(aPresContext, aContainer,
|
|
aOldChild, aIndexInContainer);
|
|
if (NS_OK == res) {
|
|
res = ContentInserted(aPresContext, aContainer,
|
|
aNewChild, aIndexInContainer);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
// Returns PR_TRUE if aAncestorFrame is an ancestor frame of aFrame
|
|
static PRBool
|
|
IsAncestorFrame(nsIFrame* aFrame, nsIFrame* aAncestorFrame)
|
|
{
|
|
nsIFrame* parentFrame;
|
|
aFrame->GetParent(&parentFrame);
|
|
|
|
while (parentFrame) {
|
|
if (parentFrame == aAncestorFrame) {
|
|
return PR_TRUE;
|
|
}
|
|
|
|
parentFrame->GetParent(&parentFrame);
|
|
}
|
|
|
|
return PR_FALSE;
|
|
}
|
|
|
|
static nsresult
|
|
DeleteOutOfFlowChildFrames(nsIPresContext* aPresContext,
|
|
nsIFrame* aRemovedFrame,
|
|
nsIFrame* aFrame)
|
|
{
|
|
// Recursively walk aFrame's child frames looking for placeholder frames
|
|
nsIFrame* childFrame;
|
|
aFrame->FirstChild(nsnull, &childFrame);
|
|
while (childFrame) {
|
|
nsIAtom* frameType;
|
|
PRBool isPlaceholder;
|
|
|
|
// See if it's a placeholder frame
|
|
childFrame->GetFrameType(&frameType);
|
|
isPlaceholder = (nsLayoutAtoms::placeholderFrame == frameType);
|
|
NS_IF_RELEASE(frameType);
|
|
|
|
if (isPlaceholder) {
|
|
// Get the out-of-flow frame
|
|
nsIFrame* outOfFlowFrame = ((nsPlaceholderFrame*)childFrame)->GetOutOfFlowFrame();
|
|
|
|
// Find and delete any of its out-of-flow frames
|
|
DeleteOutOfFlowChildFrames(aPresContext, aRemovedFrame, outOfFlowFrame);
|
|
|
|
// Don't delete the out-of-flow frame if aRemovedFrame is one of its
|
|
// ancestor frames, because when aRemovedFrame is deleted it will delete
|
|
// its child frames including this out-of-flow frame
|
|
if (!IsAncestorFrame(outOfFlowFrame, aRemovedFrame)) {
|
|
nsIPresShell* presShell;
|
|
aPresContext->GetShell(&presShell);
|
|
|
|
// Remove the mapping from the out-of-flow frame to its placeholder
|
|
presShell->SetPlaceholderFrameFor(outOfFlowFrame, nsnull);
|
|
|
|
// Get the out-of-flow frame's parent
|
|
nsIFrame* parentFrame;
|
|
outOfFlowFrame->GetParent(&parentFrame);
|
|
|
|
// Get the child list name for the out-of-flow frame
|
|
nsIAtom* listName;
|
|
GetChildListNameFor(parentFrame, outOfFlowFrame, &listName);
|
|
|
|
// Ask the parent to delete the out-of-flow frame
|
|
parentFrame->RemoveFrame(*aPresContext, *presShell, listName, outOfFlowFrame);
|
|
NS_IF_RELEASE(listName);
|
|
NS_RELEASE(presShell);
|
|
}
|
|
|
|
} else {
|
|
DeleteOutOfFlowChildFrames(aPresContext, aRemovedFrame, childFrame);
|
|
}
|
|
|
|
// Get the next sibling child frame
|
|
childFrame->GetNextSibling(&childFrame);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::ContentRemoved(nsIPresContext* aPresContext,
|
|
nsIContent* aContainer,
|
|
nsIContent* aChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
aPresContext->GetShell(getter_AddRefs(shell));
|
|
nsresult rv = NS_OK;
|
|
|
|
// Find the child frame
|
|
nsIFrame* childFrame;
|
|
shell->GetPrimaryFrameFor(aChild, &childFrame);
|
|
|
|
if (nsnull != childFrame) {
|
|
// If the frame has any child frames that have been moved out of the
|
|
// flow, then delete them as well
|
|
DeleteOutOfFlowChildFrames(aPresContext, childFrame, childFrame);
|
|
|
|
// See if the child frame is a floating frame
|
|
const nsStyleDisplay* display;
|
|
childFrame->GetStyleData(eStyleStruct_Display,
|
|
(const nsStyleStruct*&)display);
|
|
if (display->IsFloating()) {
|
|
// Get the placeholder frame
|
|
nsIFrame* placeholderFrame;
|
|
shell->GetPlaceholderFrameFor(childFrame, &placeholderFrame);
|
|
|
|
// Remove the mapping from the frame to its placeholder
|
|
shell->SetPlaceholderFrameFor(childFrame, nsnull);
|
|
|
|
// Now we remove the floating frame
|
|
|
|
// XXX has to be done first for now: the blocks line list
|
|
// contains an array of pointers to the placeholder - we have to
|
|
// remove the floater first (which gets rid of the lines
|
|
// reference to the placeholder and floater) and then remove the
|
|
// placeholder
|
|
nsIFrame* parentFrame;
|
|
childFrame->GetParent(&parentFrame);
|
|
rv = parentFrame->RemoveFrame(*aPresContext, *shell,
|
|
nsLayoutAtoms::floaterList, childFrame);
|
|
|
|
// Remove the placeholder frame first (XXX second for now) (so
|
|
// that it doesn't retain a dangling pointer to memory)
|
|
if (nsnull != placeholderFrame) {
|
|
placeholderFrame->GetParent(&parentFrame);
|
|
rv = parentFrame->RemoveFrame(*aPresContext, *shell, nsnull,
|
|
placeholderFrame);
|
|
}
|
|
}
|
|
else {
|
|
// See if it's absolutely positioned
|
|
const nsStylePosition* position;
|
|
childFrame->GetStyleData(eStyleStruct_Position, (const nsStyleStruct*&)position);
|
|
if (position->IsAbsolutelyPositioned()) {
|
|
// Get the placeholder frame
|
|
nsIFrame* placeholderFrame;
|
|
shell->GetPlaceholderFrameFor(childFrame, &placeholderFrame);
|
|
|
|
// Remove the mapping from the frame to its placeholder
|
|
shell->SetPlaceholderFrameFor(childFrame, nsnull);
|
|
|
|
// Generate two notifications. First for the absolutely positioned
|
|
// frame
|
|
nsIFrame* parentFrame;
|
|
childFrame->GetParent(&parentFrame);
|
|
rv = parentFrame->RemoveFrame(*aPresContext, *shell,
|
|
nsLayoutAtoms::absoluteList, childFrame);
|
|
|
|
// Now the placeholder frame
|
|
if (nsnull != placeholderFrame) {
|
|
placeholderFrame->GetParent(&parentFrame);
|
|
rv = parentFrame->RemoveFrame(*aPresContext, *shell, nsnull,
|
|
placeholderFrame);
|
|
}
|
|
|
|
} else {
|
|
// Notify the parent frame that it should delete the frame
|
|
nsIFrame* parentFrame;
|
|
childFrame->GetParent(&parentFrame);
|
|
rv = parentFrame->RemoveFrame(*aPresContext, *shell, nsnull, childFrame);
|
|
|
|
#ifdef INCLUDE_XUL
|
|
// Need to (for XUL only) do a special check for the treeitem tag
|
|
PRInt32 nameSpaceID;
|
|
if (aContainer &&
|
|
NS_SUCCEEDED(aContainer->GetNameSpaceID(nameSpaceID)) &&
|
|
nameSpaceID == nsXULAtoms::nameSpaceID) {
|
|
// See if we're the treeitem tag. This tag is treated differently,
|
|
// since the children of the content node are actually SIBLING frames.
|
|
// We've only removed the parent frame. Now we have to remove all of
|
|
// its children.
|
|
nsCOMPtr<nsIAtom> tag;
|
|
aContainer->GetTag(*getter_AddRefs(tag));
|
|
nsString tagName;
|
|
tag->ToString(tagName);
|
|
if (tagName == "treeitem")
|
|
{
|
|
// Calling content removed on each of our content node children
|
|
// should do the trick.
|
|
PRInt32 count;
|
|
for (PRInt32 i = 0; i < count; i++)
|
|
{
|
|
nsCOMPtr<nsIContent> childContent;
|
|
aContainer->ChildAt(i, *getter_AddRefs(childContent));
|
|
if (childContent)
|
|
{
|
|
// Call ContentRemoved.
|
|
ContentRemoved(aPresContext, aContainer,
|
|
childContent, i);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif // INCLUDE_XUL
|
|
}
|
|
}
|
|
|
|
if (mInitialContainingBlock == childFrame) {
|
|
mInitialContainingBlock = nsnull;
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
static void
|
|
UpdateViewsForTree(nsIFrame* aFrame, nsIViewManager* aViewManager)
|
|
{
|
|
nsIView* view;
|
|
aFrame->GetView(&view);
|
|
|
|
if (view) {
|
|
const nsStyleColor* color;
|
|
const nsStyleDisplay* disp;
|
|
aFrame->GetStyleData(eStyleStruct_Color, (const nsStyleStruct*&) color);
|
|
aFrame->GetStyleData(eStyleStruct_Display, (const nsStyleStruct*&) disp);
|
|
|
|
view->SetVisibility(NS_STYLE_VISIBILITY_HIDDEN == disp->mVisible ?nsViewVisibility_kHide:nsViewVisibility_kShow);
|
|
|
|
aViewManager->SetViewOpacity(view, color->mOpacity);
|
|
}
|
|
|
|
// now do children fo frame
|
|
PRInt32 listIndex = 0;
|
|
nsIAtom* childList = nsnull;
|
|
|
|
do {
|
|
nsIFrame* child = nsnull;
|
|
aFrame->FirstChild(childList, &child);
|
|
while (child) {
|
|
UpdateViewsForTree(child, aViewManager);
|
|
child->GetNextSibling(&child);
|
|
}
|
|
NS_IF_RELEASE(childList);
|
|
aFrame->GetAdditionalChildListName(listIndex++, &childList);
|
|
} while (childList);
|
|
NS_IF_RELEASE(childList);
|
|
}
|
|
|
|
static void
|
|
ApplyRenderingChangeToTree(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame)
|
|
{
|
|
nsIViewManager* viewManager = nsnull;
|
|
|
|
// Trigger rendering updates by damaging this frame and any
|
|
// continuations of this frame.
|
|
|
|
// XXX this needs to detect the need for a view due to an opacity change and deal with it...
|
|
|
|
while (nsnull != aFrame) {
|
|
// Get the frame's bounding rect
|
|
nsRect r;
|
|
aFrame->GetRect(r);
|
|
r.x = 0;
|
|
r.y = 0;
|
|
|
|
// Get view if this frame has one and trigger an update. If the
|
|
// frame doesn't have a view, find the nearest containing view
|
|
// (adjusting r's coordinate system to reflect the nesting) and
|
|
// update there.
|
|
nsIView* view;
|
|
aFrame->GetView(&view);
|
|
if (nsnull != view) {
|
|
} else {
|
|
nsPoint offset;
|
|
aFrame->GetOffsetFromView(offset, &view);
|
|
NS_ASSERTION(nsnull != view, "no view");
|
|
r += offset;
|
|
}
|
|
if (nsnull == viewManager) {
|
|
view->GetViewManager(viewManager);
|
|
}
|
|
UpdateViewsForTree(aFrame, viewManager);
|
|
viewManager->UpdateView(view, r, NS_VMREFRESH_NO_SYNC);
|
|
|
|
aFrame->GetNextInFlow(&aFrame);
|
|
}
|
|
|
|
if (nsnull != viewManager) {
|
|
viewManager->Composite();
|
|
NS_RELEASE(viewManager);
|
|
}
|
|
}
|
|
|
|
static void
|
|
StyleChangeReflow(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame,
|
|
nsIAtom * aAttribute)
|
|
{
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
aPresContext->GetShell(getter_AddRefs(shell));
|
|
|
|
nsIReflowCommand* reflowCmd;
|
|
nsresult rv = NS_NewHTMLReflowCommand(&reflowCmd, aFrame,
|
|
nsIReflowCommand::StyleChanged,
|
|
nsnull,
|
|
aAttribute);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
shell->AppendReflowCommand(reflowCmd);
|
|
NS_RELEASE(reflowCmd);
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::ContentChanged(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsISupports* aSubContent)
|
|
{
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
aPresContext->GetShell(getter_AddRefs(shell));
|
|
nsresult rv = NS_OK;
|
|
|
|
// Find the child frame
|
|
nsIFrame* frame;
|
|
shell->GetPrimaryFrameFor(aContent, &frame);
|
|
|
|
// Notify the first frame that maps the content. It will generate a reflow
|
|
// command
|
|
|
|
// It's possible the frame whose content changed isn't inserted into the
|
|
// frame hierarchy yet, or that there is no frame that maps the content
|
|
if (nsnull != frame) {
|
|
#if 0
|
|
NS_FRAME_LOG(NS_FRAME_TRACE_CALLS,
|
|
("nsHTMLStyleSheet::ContentChanged: content=%p[%s] subcontent=%p frame=%p",
|
|
aContent, ContentTag(aContent, 0),
|
|
aSubContent, frame));
|
|
#endif
|
|
frame->ContentChanged(aPresContext, aContent, aSubContent);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
PRInt32
|
|
nsCSSFrameConstructor::FindRestyledFramesBelow(nsIFrame* aFrame,
|
|
nsIPresContext* aPresContext,
|
|
PRInt32 aParentHint,
|
|
nsStyleChangeList& aChanges)
|
|
{
|
|
PRInt32 count = 0;
|
|
PRInt32 listIndex = 0;
|
|
PRInt32 childChange;
|
|
nsIAtom* childList = nsnull;
|
|
|
|
do {
|
|
nsIFrame* child = nsnull;
|
|
aFrame->FirstChild(childList, &child);
|
|
while (child) {
|
|
nsIStyleContext* oldContext;
|
|
child->GetStyleContext(&oldContext);
|
|
if (oldContext) {
|
|
nsIStyleContext* parentContext = oldContext->GetParent();
|
|
nsresult didChange = child->ReResolveStyleContext(aPresContext, parentContext,
|
|
aParentHint, &aChanges,
|
|
&childChange);
|
|
NS_IF_RELEASE(parentContext);
|
|
if (NS_SUCCEEDED(didChange)) {
|
|
if (NS_COMFALSE == didChange) {
|
|
count += FindRestyledFramesBelow(child, aPresContext, aParentHint, aChanges);
|
|
}
|
|
else {
|
|
nsIStyleContext* newContext;
|
|
child->GetStyleContext(&newContext);
|
|
if (newContext) {
|
|
PRInt32 hint = NS_STYLE_HINT_NONE;
|
|
newContext->CalcStyleDifference(oldContext, hint);
|
|
if (aParentHint < hint) { // if child needs more than parent did
|
|
aChanges.AppendChange(child, hint);
|
|
count++;
|
|
if (hint < NS_STYLE_HINT_FRAMECHANGE) { // look for greater change below
|
|
count += FindRestyledFramesBelow(child, aPresContext, hint, aChanges);
|
|
}
|
|
}
|
|
NS_RELEASE(newContext);
|
|
}
|
|
}
|
|
}
|
|
NS_RELEASE(oldContext);
|
|
}
|
|
child->GetNextSibling(&child);
|
|
}
|
|
NS_IF_RELEASE(childList);
|
|
aFrame->GetAdditionalChildListName(listIndex++, &childList);
|
|
} while (childList);
|
|
NS_IF_RELEASE(childList);
|
|
return count;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::ProcessRestyledFrames(nsStyleChangeList& aChangeList,
|
|
nsIPresContext* aPresContext)
|
|
{
|
|
PRInt32 count = aChangeList.Count();
|
|
while (0 < count--) {
|
|
nsIFrame* frame;
|
|
PRInt32 hint;
|
|
aChangeList.ChangeAt(count, frame, hint);
|
|
switch (hint) {
|
|
case NS_STYLE_HINT_RECONSTRUCT_ALL:
|
|
NS_ERROR("This shouldn't happen");
|
|
break;
|
|
case NS_STYLE_HINT_FRAMECHANGE:
|
|
nsIContent* content;
|
|
frame->GetContent(&content);
|
|
RecreateFramesForContent(aPresContext, content);
|
|
NS_IF_RELEASE(content);
|
|
break;
|
|
case NS_STYLE_HINT_REFLOW:
|
|
StyleChangeReflow(aPresContext, frame, nsnull);
|
|
break;
|
|
case NS_STYLE_HINT_VISUAL:
|
|
ApplyRenderingChangeToTree(aPresContext, frame);
|
|
break;
|
|
case NS_STYLE_HINT_CONTENT:
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
aChangeList.Clear();
|
|
return NS_OK;
|
|
}
|
|
|
|
PRInt32
|
|
nsCSSFrameConstructor::ComputeStateChangeFor(nsIPresContext* aPresContext, nsIFrame* aFrame,
|
|
nsStyleChangeList& aChangeList,
|
|
PRInt32 aFrameChange)
|
|
{
|
|
nsIFrame* frame = aFrame;
|
|
do {
|
|
nsIStyleContext* oldFrameContext;
|
|
frame->GetStyleContext(&oldFrameContext);
|
|
NS_ASSERTION(nsnull != oldFrameContext, "frame must have style context");
|
|
if (oldFrameContext) {
|
|
nsIStyleContext* parentContext = oldFrameContext->GetParent();
|
|
nsresult didChange = frame->ReResolveStyleContext(aPresContext, parentContext,
|
|
aFrameChange, &aChangeList,
|
|
&aFrameChange);
|
|
NS_IF_RELEASE(parentContext);
|
|
if (NS_SUCCEEDED(didChange)) {
|
|
if (NS_COMFALSE == didChange) {
|
|
// need remap? I don't think so
|
|
FindRestyledFramesBelow(frame, aPresContext, aFrameChange, aChangeList);
|
|
}
|
|
}
|
|
NS_RELEASE(oldFrameContext);
|
|
}
|
|
frame->GetNextInFlow(&frame);
|
|
} while (frame);
|
|
return aFrameChange;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::ContentStatesChanged(nsIPresContext* aPresContext,
|
|
nsIContent* aContent1,
|
|
nsIContent* aContent2)
|
|
{
|
|
nsresult result = NS_OK;
|
|
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
aPresContext->GetShell(getter_AddRefs(shell));
|
|
|
|
NS_ASSERTION(shell, "couldn't get pres shell");
|
|
if (shell) {
|
|
nsIStyleSet* styleSet;
|
|
shell->GetStyleSet(&styleSet);
|
|
|
|
NS_ASSERTION(styleSet, "couldn't get style set");
|
|
if (styleSet) { // test if any style rules exist which are dependent on content state
|
|
nsIFrame* primaryFrame1 = nsnull;
|
|
nsIFrame* primaryFrame2 = nsnull;
|
|
if (aContent1 && (NS_OK == styleSet->HasStateDependentStyle(aPresContext, aContent1))) {
|
|
shell->GetPrimaryFrameFor(aContent1, &primaryFrame1);
|
|
}
|
|
else {
|
|
aContent1 = nsnull;
|
|
}
|
|
|
|
if (aContent2 && (aContent2 != aContent1) &&
|
|
(NS_OK == styleSet->HasStateDependentStyle(aPresContext, aContent2))) {
|
|
shell->GetPrimaryFrameFor(aContent2, &primaryFrame2);
|
|
}
|
|
else {
|
|
aContent2 = nsnull;
|
|
}
|
|
NS_RELEASE(styleSet);
|
|
|
|
if (primaryFrame1 && primaryFrame2) { // detect if one is parent of other, skip child
|
|
nsIFrame* parent;
|
|
primaryFrame1->GetParent(&parent);
|
|
while (parent) {
|
|
if (parent == primaryFrame2) { // frame2 is frame1's parent, skip frame1
|
|
primaryFrame1 = nsnull;
|
|
break;
|
|
}
|
|
parent->GetParent(&parent);
|
|
}
|
|
if (primaryFrame1) {
|
|
primaryFrame2->GetParent(&parent);
|
|
while (parent) {
|
|
if (parent == primaryFrame1) { // frame1 is frame2's parent, skip frame2
|
|
primaryFrame2 = nsnull;
|
|
break;
|
|
}
|
|
parent->GetParent(&parent);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if (primaryFrame1) {
|
|
nsStyleChangeList changeList1;
|
|
nsStyleChangeList changeList2;
|
|
PRInt32 frameChange1 = NS_STYLE_HINT_NONE;
|
|
PRInt32 frameChange2 = NS_STYLE_HINT_NONE;
|
|
frameChange1 = ComputeStateChangeFor(aPresContext, primaryFrame1, changeList1, frameChange1);
|
|
|
|
if ((frameChange1 != NS_STYLE_HINT_RECONSTRUCT_ALL) && (primaryFrame2)) {
|
|
frameChange2 = ComputeStateChangeFor(aPresContext, primaryFrame2, changeList2, frameChange2);
|
|
}
|
|
|
|
if ((frameChange1 == NS_STYLE_HINT_RECONSTRUCT_ALL) ||
|
|
(frameChange2 == NS_STYLE_HINT_RECONSTRUCT_ALL)) {
|
|
result = ReconstructDocElementHierarchy(aPresContext);
|
|
}
|
|
else {
|
|
switch (frameChange1) {
|
|
case NS_STYLE_HINT_FRAMECHANGE:
|
|
result = RecreateFramesForContent(aPresContext, aContent1);
|
|
changeList1.Clear();
|
|
break;
|
|
case NS_STYLE_HINT_REFLOW:
|
|
case NS_STYLE_HINT_VISUAL:
|
|
break;
|
|
case NS_STYLE_HINT_CONTENT:
|
|
// let primary frame deal with it
|
|
result = primaryFrame1->ContentChanged(aPresContext, aContent1, nsnull);
|
|
default:
|
|
break;
|
|
}
|
|
switch (frameChange2) {
|
|
case NS_STYLE_HINT_FRAMECHANGE:
|
|
result = RecreateFramesForContent(aPresContext, aContent2);
|
|
changeList2.Clear();
|
|
break;
|
|
case NS_STYLE_HINT_REFLOW:
|
|
case NS_STYLE_HINT_VISUAL:
|
|
break;
|
|
case NS_STYLE_HINT_CONTENT:
|
|
// let primary frame deal with it
|
|
result = primaryFrame2->ContentChanged(aPresContext, aContent2, nsnull);
|
|
// then process any children that need it
|
|
default:
|
|
break;
|
|
}
|
|
ProcessRestyledFrames(changeList1, aPresContext);
|
|
ProcessRestyledFrames(changeList2, aPresContext);
|
|
}
|
|
}
|
|
else if (primaryFrame2) {
|
|
nsStyleChangeList changeList;
|
|
PRInt32 frameChange = NS_STYLE_HINT_NONE;
|
|
frameChange = ComputeStateChangeFor(aPresContext, primaryFrame2, changeList, frameChange);
|
|
|
|
switch (frameChange) { // max change needed for top level frames
|
|
case NS_STYLE_HINT_RECONSTRUCT_ALL:
|
|
result = ReconstructDocElementHierarchy(aPresContext);
|
|
changeList.Clear();
|
|
break;
|
|
case NS_STYLE_HINT_FRAMECHANGE:
|
|
result = RecreateFramesForContent(aPresContext, aContent2);
|
|
changeList.Clear();
|
|
break;
|
|
case NS_STYLE_HINT_REFLOW:
|
|
case NS_STYLE_HINT_VISUAL:
|
|
break;
|
|
case NS_STYLE_HINT_CONTENT:
|
|
// let primary frame deal with it
|
|
result = primaryFrame2->ContentChanged(aPresContext, aContent2, nsnull);
|
|
// then process any children that need it
|
|
default:
|
|
break;
|
|
}
|
|
ProcessRestyledFrames(changeList, aPresContext);
|
|
}
|
|
else { // no frames, reconstruct for content
|
|
if (aContent1) {
|
|
result = RecreateFramesForContent(aPresContext, aContent1);
|
|
}
|
|
if (aContent2) {
|
|
result = RecreateFramesForContent(aPresContext, aContent2);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::AttributeChanged(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIAtom* aAttribute,
|
|
PRInt32 aHint)
|
|
{
|
|
nsresult result = NS_OK;
|
|
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
aPresContext->GetShell(getter_AddRefs(shell));
|
|
nsIFrame* primaryFrame;
|
|
|
|
shell->GetPrimaryFrameFor(aContent, &primaryFrame);
|
|
|
|
PRBool reconstruct = PR_FALSE;
|
|
PRBool restyle = PR_FALSE;
|
|
PRBool reframe = PR_FALSE;
|
|
|
|
#if 0
|
|
NS_FRAME_LOG(NS_FRAME_TRACE_CALLS,
|
|
("HTMLStyleSheet::AttributeChanged: content=%p[%s] frame=%p",
|
|
aContent, ContentTag(aContent, 0), frame));
|
|
#endif
|
|
|
|
// the style tag has its own interpretation based on aHint
|
|
if (NS_STYLE_HINT_UNKNOWN == aHint) {
|
|
nsIStyledContent* styledContent;
|
|
result = aContent->QueryInterface(nsIStyledContent::GetIID(), (void**)&styledContent);
|
|
|
|
if (NS_OK == result) {
|
|
// Get style hint from HTML content object.
|
|
styledContent->GetStyleHintForAttributeChange(aAttribute, &aHint);
|
|
NS_RELEASE(styledContent);
|
|
}
|
|
}
|
|
|
|
switch (aHint) {
|
|
default:
|
|
case NS_STYLE_HINT_RECONSTRUCT_ALL:
|
|
reconstruct = PR_TRUE;
|
|
case NS_STYLE_HINT_FRAMECHANGE:
|
|
reframe = PR_TRUE;
|
|
case NS_STYLE_HINT_REFLOW:
|
|
case NS_STYLE_HINT_VISUAL:
|
|
case NS_STYLE_HINT_UNKNOWN:
|
|
case NS_STYLE_HINT_CONTENT:
|
|
case NS_STYLE_HINT_AURAL:
|
|
restyle = PR_TRUE;
|
|
break;
|
|
case NS_STYLE_HINT_NONE:
|
|
break;
|
|
}
|
|
|
|
// apply changes
|
|
if (PR_TRUE == reconstruct) {
|
|
result = ReconstructDocElementHierarchy(aPresContext);
|
|
}
|
|
else if (PR_TRUE == reframe) {
|
|
result = RecreateFramesForContent(aPresContext, aContent);
|
|
}
|
|
else if (PR_TRUE == restyle) {
|
|
// If there is no frame then there is no point in re-styling it,
|
|
// is there?
|
|
if (primaryFrame) {
|
|
PRInt32 maxHint = aHint;
|
|
nsIFrame* frame = primaryFrame;
|
|
nsStyleChangeList changeList;
|
|
// put primary frame on list to deal with, re-resolve may update or add next in flows
|
|
changeList.AppendChange(primaryFrame, maxHint);
|
|
do {
|
|
nsIStyleContext* oldFrameContext;
|
|
frame->GetStyleContext(&oldFrameContext);
|
|
NS_ASSERTION(nsnull != oldFrameContext, "frame must have style context");
|
|
if (oldFrameContext) {
|
|
nsIStyleContext* parentContext = oldFrameContext->GetParent();
|
|
nsresult didChange = frame->ReResolveStyleContext(aPresContext, parentContext, maxHint,
|
|
&changeList, &maxHint);
|
|
NS_IF_RELEASE(parentContext);
|
|
if (NS_SUCCEEDED(didChange)) {
|
|
if (NS_COMFALSE == didChange) {
|
|
if (maxHint < NS_STYLE_HINT_FRAMECHANGE) {
|
|
oldFrameContext->RemapStyle(aPresContext);
|
|
FindRestyledFramesBelow(frame, aPresContext, maxHint, changeList);
|
|
}
|
|
}
|
|
}
|
|
NS_RELEASE(oldFrameContext);
|
|
}
|
|
frame->GetNextInFlow(&frame);
|
|
} while (frame);
|
|
|
|
switch (maxHint) { // maxHint is hint for primary only
|
|
case NS_STYLE_HINT_RECONSTRUCT_ALL:
|
|
result = ReconstructDocElementHierarchy(aPresContext);
|
|
changeList.Clear();
|
|
break;
|
|
case NS_STYLE_HINT_FRAMECHANGE:
|
|
result = RecreateFramesForContent(aPresContext, aContent);
|
|
changeList.Clear();
|
|
break;
|
|
case NS_STYLE_HINT_REFLOW:
|
|
case NS_STYLE_HINT_VISUAL:
|
|
break;
|
|
case NS_STYLE_HINT_CONTENT:
|
|
// let the frame deal with it, since we don't know how to
|
|
result = primaryFrame->AttributeChanged(aPresContext, aContent, aAttribute, maxHint);
|
|
default:
|
|
break;
|
|
}
|
|
// handle any children (primary may be on list too)
|
|
ProcessRestyledFrames(changeList, aPresContext);
|
|
}
|
|
else { // no frame now, possibly genetate one with new style data
|
|
result = RecreateFramesForContent(aPresContext, aContent);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
// Style change notifications
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::StyleRuleChanged(nsIPresContext* aPresContext,
|
|
nsIStyleSheet* aStyleSheet,
|
|
nsIStyleRule* aStyleRule,
|
|
PRInt32 aHint)
|
|
{
|
|
nsresult result = NS_OK;
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
aPresContext->GetShell(getter_AddRefs(shell));
|
|
nsIFrame* frame;
|
|
shell->GetRootFrame(&frame);
|
|
|
|
PRBool reframe = PR_FALSE;
|
|
PRBool reflow = PR_FALSE;
|
|
PRBool render = PR_FALSE;
|
|
PRBool restyle = PR_FALSE;
|
|
switch (aHint) {
|
|
default:
|
|
case NS_STYLE_HINT_UNKNOWN:
|
|
case NS_STYLE_HINT_FRAMECHANGE:
|
|
reframe = PR_TRUE;
|
|
case NS_STYLE_HINT_REFLOW:
|
|
reflow = PR_TRUE;
|
|
case NS_STYLE_HINT_VISUAL:
|
|
render = PR_TRUE;
|
|
case NS_STYLE_HINT_CONTENT:
|
|
case NS_STYLE_HINT_AURAL:
|
|
restyle = PR_TRUE;
|
|
break;
|
|
case NS_STYLE_HINT_NONE:
|
|
break;
|
|
}
|
|
|
|
if (reframe) {
|
|
result = ReconstructDocElementHierarchy(aPresContext);
|
|
}
|
|
else if (restyle) {
|
|
nsIStyleContext* sc;
|
|
frame->GetStyleContext(&sc);
|
|
sc->RemapStyle(aPresContext);
|
|
NS_RELEASE(sc);
|
|
|
|
// XXX hack, skip the root and scrolling frames
|
|
frame->FirstChild(nsnull, &frame);
|
|
frame->FirstChild(nsnull, &frame);
|
|
if (reflow) {
|
|
StyleChangeReflow(aPresContext, frame, nsnull);
|
|
}
|
|
else if (render) {
|
|
ApplyRenderingChangeToTree(aPresContext, frame);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::StyleRuleAdded(nsIPresContext* aPresContext,
|
|
nsIStyleSheet* aStyleSheet,
|
|
nsIStyleRule* aStyleRule)
|
|
{
|
|
// XXX TBI: should query rule for impact and do minimal work
|
|
ReconstructDocElementHierarchy(aPresContext);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::StyleRuleRemoved(nsIPresContext* aPresContext,
|
|
nsIStyleSheet* aStyleSheet,
|
|
nsIStyleRule* aStyleRule)
|
|
{
|
|
// XXX TBI: should query rule for impact and do minimal work
|
|
ReconstructDocElementHierarchy(aPresContext);
|
|
return NS_OK;
|
|
}
|
|
|
|
// Construct an alternate frame to use when the image can't be rendered
|
|
nsresult
|
|
nsCSSFrameConstructor::ConstructAlternateImageFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aStyleContext,
|
|
nsIFrame* aParentFrame,
|
|
nsIFrame*& aFrame)
|
|
{
|
|
nsIDOMHTMLImageElement* imageElement;
|
|
nsresult rv;
|
|
|
|
// Initialize OUT parameter
|
|
aFrame = nsnull;
|
|
|
|
rv = aContent->QueryInterface(kIDOMHTMLImageElementIID, (void**)&imageElement);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsAutoString altText;
|
|
|
|
// The "alt" attribute specifies alternate text that is rendered
|
|
// when the image can not be displayed
|
|
imageElement->GetAlt(altText);
|
|
if (0 == altText.Length()) {
|
|
// If there's no "alt" attribute, then use the value of the "title"
|
|
// attribute
|
|
imageElement->GetTitle(altText);
|
|
}
|
|
if (0 == altText.Length()) {
|
|
// If there's no "title" attribute, then use the filename minus the
|
|
// extension
|
|
imageElement->GetSrc(altText);
|
|
if (altText.Length() > 0) {
|
|
// Trim off the path part of the filename
|
|
PRInt32 offset = altText.RFind('/');
|
|
if (offset >= 0) {
|
|
altText.Cut(0, offset + 1);
|
|
}
|
|
|
|
// Trim off the extension
|
|
offset = altText.RFind('.');
|
|
if (offset >= 0) {
|
|
altText.Truncate(offset);
|
|
}
|
|
}
|
|
}
|
|
NS_RELEASE(imageElement);
|
|
|
|
// Create a text content element for the alternate text
|
|
nsCOMPtr<nsIContent> altTextContent;
|
|
nsIDOMCharacterData* domData;
|
|
|
|
NS_NewTextNode(getter_AddRefs(altTextContent));
|
|
altTextContent->QueryInterface(kIDOMCharacterDataIID, (void**)&domData);
|
|
domData->SetData(altText);
|
|
NS_RELEASE(domData);
|
|
|
|
// Create either an inline frame, block frame, or area frame
|
|
nsIFrame* containerFrame;
|
|
const nsStyleDisplay* display = (const nsStyleDisplay*)
|
|
aStyleContext->GetStyleData(eStyleStruct_Display);
|
|
const nsStylePosition* position = (const nsStylePosition*)
|
|
aStyleContext->GetStyleData(eStyleStruct_Position);
|
|
|
|
if (position->IsAbsolutelyPositioned()) {
|
|
NS_NewAreaFrame(containerFrame, NS_BLOCK_MARGIN_ROOT);
|
|
} else if (display->IsFloating() || (NS_STYLE_DISPLAY_BLOCK == display->mDisplay)) {
|
|
NS_NewBlockFrame(containerFrame, 0);
|
|
} else {
|
|
NS_NewInlineFrame(containerFrame);
|
|
}
|
|
containerFrame->Init(*aPresContext, aContent, aParentFrame, aStyleContext, nsnull);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, containerFrame,
|
|
aStyleContext, PR_FALSE);
|
|
|
|
// Create a text frame to display the alt-text. It gets a pseudo-element
|
|
// style context
|
|
nsIFrame* textFrame;
|
|
nsIStyleContext* textStyleContext;
|
|
|
|
NS_NewTextFrame(textFrame);
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent, nsHTMLAtoms::textPseudo,
|
|
aStyleContext, PR_FALSE,
|
|
&textStyleContext);
|
|
|
|
textFrame->Init(*aPresContext, altTextContent, containerFrame,
|
|
textStyleContext, nsnull);
|
|
NS_RELEASE(textStyleContext);
|
|
containerFrame->SetInitialChildList(*aPresContext, nsnull, textFrame);
|
|
|
|
// Return the container frame
|
|
aFrame = containerFrame;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::CantRenderReplacedElement(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame)
|
|
{
|
|
nsIFrame* parentFrame;
|
|
nsCOMPtr<nsIStyleContext> styleContext;
|
|
nsCOMPtr<nsIContent> content;
|
|
nsCOMPtr<nsIAtom> tag;
|
|
nsresult rv = NS_OK;
|
|
|
|
aFrame->GetParent(&parentFrame);
|
|
aFrame->GetStyleContext(getter_AddRefs(styleContext));
|
|
|
|
// Get aFrame's content object and the tag name
|
|
aFrame->GetContent(getter_AddRefs(content));
|
|
NS_ASSERTION(content, "null content object");
|
|
content->GetTag(*getter_AddRefs(tag));
|
|
|
|
// Get the child list name that the frame is contained in
|
|
nsCOMPtr<nsIAtom> listName;
|
|
GetChildListNameFor(parentFrame, aFrame, getter_AddRefs(listName));
|
|
|
|
// If the frame is out of the flow, then it has a placeholder frame.
|
|
nsIFrame* placeholderFrame = nsnull;
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
aPresContext->GetShell(getter_AddRefs(presShell));
|
|
if (listName) {
|
|
presShell->GetPlaceholderFrameFor(aFrame, &placeholderFrame);
|
|
}
|
|
|
|
// Get the previous sibling frame
|
|
nsIFrame* firstChild;
|
|
parentFrame->FirstChild(listName, &firstChild);
|
|
nsFrameList frameList(firstChild);
|
|
nsIFrame* prevSibling = frameList.GetPrevSiblingFor(aFrame);
|
|
|
|
// See whether it's an IMG or an OBJECT element
|
|
if (nsHTMLAtoms::img == tag.get()) {
|
|
// It's an IMG element. Try and construct an alternate frame to use when the
|
|
// image can't be rendered
|
|
nsIFrame* newFrame;
|
|
rv = ConstructAlternateImageFrame(aPresContext, content, styleContext,
|
|
parentFrame, newFrame);
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// Delete the current frame and insert the new frame
|
|
parentFrame->RemoveFrame(*aPresContext, *presShell, listName, aFrame);
|
|
if (placeholderFrame) {
|
|
// Remove the association between the old frame and its placeholder
|
|
presShell->SetPlaceholderFrameFor(aFrame, nsnull);
|
|
|
|
// Reuse the existing placeholder frame, and add an association to the
|
|
// new frame
|
|
presShell->SetPlaceholderFrameFor(newFrame, placeholderFrame);
|
|
|
|
// Placeholder frames have a pointer back to the out-of-flow frame.
|
|
// Make sure that's correct
|
|
((nsPlaceholderFrame*)placeholderFrame)->SetOutOfFlowFrame(newFrame);
|
|
}
|
|
parentFrame->InsertFrames(*aPresContext, *presShell, listName, prevSibling, newFrame);
|
|
}
|
|
|
|
} else if ((nsHTMLAtoms::object == tag.get()) ||
|
|
(nsHTMLAtoms::embed == tag.get()) ||
|
|
(nsHTMLAtoms::applet == tag.get())) {
|
|
// It's an OBJECT element or APPLET, so we should display the contents
|
|
// instead. Get the containing block for absolutely positioned elements
|
|
nsIFrame* absoluteContainingBlock =
|
|
GetAbsoluteContainingBlock(aPresContext, parentFrame);
|
|
|
|
// Get the containing block for floating elements
|
|
nsIFrame* floaterContainingBlock =
|
|
GetFloaterContainingBlock(aPresContext, parentFrame);
|
|
|
|
// Create a frame based on the display type
|
|
nsAbsoluteItems absoluteItems(absoluteContainingBlock);
|
|
nsAbsoluteItems floaterList(floaterContainingBlock);
|
|
nsFrameItems frameItems;
|
|
nsAbsoluteItems fixedItems(mFixedContainingBlock);
|
|
const nsStyleDisplay* display = (const nsStyleDisplay*)
|
|
styleContext->GetStyleData(eStyleStruct_Display);
|
|
|
|
rv = ConstructFrameByDisplayType(aPresContext, display, content,
|
|
parentFrame, styleContext,
|
|
absoluteItems, frameItems,
|
|
fixedItems, floaterList, PR_FALSE);
|
|
|
|
nsIFrame* newFrame = frameItems.childList;
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// Delete the current frame and insert the new frame
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
aPresContext->GetShell(getter_AddRefs(presShell));
|
|
parentFrame->RemoveFrame(*aPresContext, *presShell, nsnull, aFrame);
|
|
parentFrame->InsertFrames(*aPresContext, *presShell, nsnull, prevSibling, newFrame);
|
|
|
|
// If there are new absolutely positioned child frames, then notify
|
|
// the parent
|
|
// XXX We can't just assume these frames are being appended, we need to
|
|
// determine where in the list they should be inserted...
|
|
if (nsnull != absoluteItems.childList) {
|
|
rv = absoluteItems.containingBlock->AppendFrames(*aPresContext, *presShell,
|
|
nsLayoutAtoms::absoluteList,
|
|
absoluteItems.childList);
|
|
}
|
|
|
|
// If there are new fixed positioned child frames, then notify
|
|
// the parent
|
|
// XXX We can't just assume these frames are being appended, we need to
|
|
// determine where in the list they should be inserted...
|
|
if (nsnull != fixedItems.childList) {
|
|
rv = fixedItems.containingBlock->AppendFrames(*aPresContext, *presShell,
|
|
nsLayoutAtoms::fixedList,
|
|
fixedItems.childList);
|
|
}
|
|
|
|
// If there are new floating child frames, then notify
|
|
// the parent
|
|
// XXX We can't just assume these frames are being appended, we need to
|
|
// determine where in the list they should be inserted...
|
|
if (floaterList.childList) {
|
|
rv = floaterList.containingBlock->AppendFrames(*aPresContext,
|
|
*presShell,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
}
|
|
|
|
} else if (nsHTMLAtoms::input == tag.get()) {
|
|
// XXX image INPUT elements are also image frames, but don't throw away the
|
|
// image frame, because the frame class has extra logic that is specific to
|
|
// INPUT elements
|
|
|
|
} else {
|
|
NS_ASSERTION(PR_FALSE, "unexpected tag");
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::CreateContinuingOuterTableFrame(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame,
|
|
nsIFrame* aParentFrame,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aStyleContext,
|
|
nsIFrame** aContinuingFrame)
|
|
{
|
|
nsIFrame* newFrame;
|
|
nsresult rv;
|
|
|
|
rv = NS_NewTableOuterFrame(newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, aContent, aParentFrame, aStyleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
aStyleContext, PR_FALSE);
|
|
|
|
// Create a continuing inner table frame, and if there's a caption then
|
|
// replicate the caption
|
|
nsIFrame* childFrame;
|
|
nsFrameItems newChildFrames;
|
|
|
|
aFrame->FirstChild(nsnull, &childFrame);
|
|
while (childFrame) {
|
|
nsIAtom* tableType;
|
|
|
|
// See if it's the inner table frame
|
|
childFrame->GetFrameType(&tableType);
|
|
if (nsLayoutAtoms::tableFrame == tableType) {
|
|
nsIFrame* continuingTableFrame;
|
|
|
|
// It's the inner table frame, so create a continuing frame
|
|
CreateContinuingFrame(aPresContext, childFrame, newFrame, &continuingTableFrame);
|
|
newChildFrames.AddChild(continuingTableFrame);
|
|
} else {
|
|
nsIContent* caption;
|
|
nsIStyleContext* captionStyle;
|
|
const nsStyleDisplay* display;
|
|
|
|
childFrame->GetContent(&caption);
|
|
childFrame->GetStyleContext(&captionStyle);
|
|
display = (const nsStyleDisplay*)captionStyle->GetStyleData(eStyleStruct_Display);
|
|
NS_ASSERTION(NS_STYLE_DISPLAY_TABLE_CAPTION == display->mDisplay, "expected caption");
|
|
|
|
// Get the containing block for absolutely positioned elements
|
|
nsIFrame* absoluteContainingBlock = GetAbsoluteContainingBlock(aPresContext,
|
|
newFrame);
|
|
|
|
// Replicate the caption frame
|
|
// XXX We have to do it this way instead of calling ConstructFrameByDisplayType(),
|
|
// because of a bug in the way ConstructTableFrame() handles the initial child
|
|
// list...
|
|
nsIFrame* captionFrame;
|
|
nsFrameItems childItems;
|
|
nsAbsoluteItems absoluteItems(absoluteContainingBlock);
|
|
nsAbsoluteItems fixedItems(mFixedContainingBlock);
|
|
nsAbsoluteItems floaterList(captionFrame);
|
|
NS_NewAreaFrame(captionFrame, 0);
|
|
captionFrame->Init(*aPresContext, caption, newFrame, captionStyle, nsnull);
|
|
ProcessChildren(aPresContext, caption, captionFrame, absoluteItems,
|
|
childItems, fixedItems, floaterList, PR_TRUE);
|
|
captionFrame->SetInitialChildList(*aPresContext, nsnull, childItems.childList);
|
|
// XXX Deal with absolute and fixed frames...
|
|
if (floaterList.childList) {
|
|
captionFrame->SetInitialChildList(*aPresContext,
|
|
nsLayoutAtoms::floaterList,
|
|
floaterList.childList);
|
|
}
|
|
newChildFrames.AddChild(captionFrame);
|
|
NS_RELEASE(caption);
|
|
NS_RELEASE(captionStyle);
|
|
}
|
|
NS_IF_RELEASE(tableType);
|
|
childFrame->GetNextSibling(&childFrame);
|
|
}
|
|
|
|
// Set the outer table's initial child list
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull, newChildFrames.childList);
|
|
}
|
|
|
|
*aContinuingFrame = newFrame;
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::CreateContinuingTableFrame(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame,
|
|
nsIFrame* aParentFrame,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aStyleContext,
|
|
nsIFrame** aContinuingFrame)
|
|
{
|
|
nsIFrame* newFrame;
|
|
nsresult rv;
|
|
|
|
rv = NS_NewTableFrame(newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, aContent, aParentFrame, aStyleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
aStyleContext, PR_FALSE);
|
|
|
|
// Replicate any header/footer frames
|
|
nsIFrame* rowGroupFrame;
|
|
nsFrameItems childFrames;
|
|
|
|
aFrame->FirstChild(nsnull, &rowGroupFrame);
|
|
while (rowGroupFrame) {
|
|
// See if it's a header/footer
|
|
nsIStyleContext* rowGroupStyle;
|
|
const nsStyleDisplay* display;
|
|
|
|
rowGroupFrame->GetStyleContext(&rowGroupStyle);
|
|
display = (const nsStyleDisplay*)rowGroupStyle->GetStyleData(eStyleStruct_Display);
|
|
|
|
if ((NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == display->mDisplay) ||
|
|
(NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == display->mDisplay)) {
|
|
|
|
// Get the containing block for absolutely positioned elements
|
|
nsIFrame* absoluteContainingBlock = GetAbsoluteContainingBlock(aPresContext,
|
|
newFrame);
|
|
// Replicate the header/footer frame
|
|
nsIFrame* headerFooterFrame;
|
|
nsFrameItems childItems;
|
|
nsAbsoluteItems absoluteItems(absoluteContainingBlock);
|
|
nsAbsoluteItems fixedItems(mFixedContainingBlock);
|
|
nsAbsoluteItems floaterList(nsnull);
|
|
nsIContent* headerFooter;
|
|
|
|
NS_NewTableRowGroupFrame(headerFooterFrame);
|
|
rowGroupFrame->GetContent(&headerFooter);
|
|
headerFooterFrame->Init(*aPresContext, headerFooter, newFrame,
|
|
rowGroupStyle, nsnull);
|
|
ProcessChildren(aPresContext, headerFooter, headerFooterFrame, absoluteItems,
|
|
childItems, fixedItems, floaterList);
|
|
NS_ASSERTION(!floaterList.childList, "unexpected floated element");
|
|
NS_RELEASE(headerFooter);
|
|
headerFooterFrame->SetInitialChildList(*aPresContext, nsnull, childItems.childList);
|
|
|
|
// Table specific initialization
|
|
((nsTableRowGroupFrame*)headerFooterFrame)->InitRepeatedFrame
|
|
((nsTableRowGroupFrame*)rowGroupFrame);
|
|
|
|
// XXX Deal with absolute and fixed frames...
|
|
childFrames.AddChild(headerFooterFrame);
|
|
}
|
|
|
|
NS_RELEASE(rowGroupStyle);
|
|
|
|
// Header and footer must be first, and then the body row groups.
|
|
// So if we found a body row group, then stop looking for header and
|
|
// footer elements
|
|
if (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == display->mDisplay) {
|
|
break;
|
|
}
|
|
|
|
// Get the next row group frame
|
|
rowGroupFrame->GetNextSibling(&rowGroupFrame);
|
|
}
|
|
|
|
// Set the table frame's initial child list
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull, childFrames.childList);
|
|
}
|
|
|
|
*aContinuingFrame = newFrame;
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCSSFrameConstructor::CreateContinuingFrame(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame,
|
|
nsIFrame* aParentFrame,
|
|
nsIFrame** aContinuingFrame)
|
|
{
|
|
nsIAtom* frameType;
|
|
nsIContent* content;
|
|
nsIStyleContext* styleContext;
|
|
nsIFrame* newFrame = nsnull;
|
|
nsresult rv;
|
|
|
|
// Use the frame type to determine what type of frame to create
|
|
aFrame->GetFrameType(&frameType);
|
|
aFrame->GetContent(&content);
|
|
aFrame->GetStyleContext(&styleContext);
|
|
|
|
if (nsLayoutAtoms::textFrame == frameType) {
|
|
rv = NS_NewTextFrame(newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, content, aParentFrame, styleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
styleContext, PR_FALSE);
|
|
}
|
|
|
|
} else if (nsLayoutAtoms::inlineFrame == frameType) {
|
|
rv = NS_NewInlineFrame(newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, content, aParentFrame, styleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
styleContext, PR_FALSE);
|
|
}
|
|
|
|
} else if (nsLayoutAtoms::blockFrame == frameType) {
|
|
rv = NS_NewBlockFrame(newFrame, 0);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, content, aParentFrame, styleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
styleContext, PR_FALSE);
|
|
}
|
|
|
|
} else if (nsLayoutAtoms::areaFrame == frameType) {
|
|
rv = NS_NewAreaFrame(newFrame, 0);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, content, aParentFrame, styleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
styleContext, PR_FALSE);
|
|
}
|
|
|
|
} else if (nsLayoutAtoms::positionedInlineFrame == frameType) {
|
|
rv = NS_NewPositionedInlineFrame(newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, content, aParentFrame, styleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
styleContext, PR_FALSE);
|
|
}
|
|
|
|
} else if (nsLayoutAtoms::pageFrame == frameType) {
|
|
rv = NS_NewPageFrame(newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, content, aParentFrame, styleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
styleContext, PR_TRUE);
|
|
}
|
|
|
|
} else if (nsLayoutAtoms::tableOuterFrame == frameType) {
|
|
rv = CreateContinuingOuterTableFrame(aPresContext, aFrame, aParentFrame,
|
|
content, styleContext, &newFrame);
|
|
|
|
} else if (nsLayoutAtoms::tableFrame == frameType) {
|
|
rv = CreateContinuingTableFrame(aPresContext, aFrame, aParentFrame,
|
|
content, styleContext, &newFrame);
|
|
|
|
} else if (nsLayoutAtoms::tableRowGroupFrame == frameType) {
|
|
rv = NS_NewTableRowGroupFrame(newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, content, aParentFrame, styleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
styleContext, PR_FALSE);
|
|
}
|
|
|
|
} else if (nsLayoutAtoms::tableRowFrame == frameType) {
|
|
rv = NS_NewTableRowFrame(newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, content, aParentFrame, styleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
styleContext, PR_FALSE);
|
|
|
|
// Create a continuing frame for each table cell frame
|
|
nsIFrame* cellFrame;
|
|
nsFrameItems newChildList;
|
|
|
|
aFrame->FirstChild(nsnull, &cellFrame);
|
|
while (cellFrame) {
|
|
nsIAtom* tableType;
|
|
|
|
// See if it's a table cell frame
|
|
cellFrame->GetFrameType(&tableType);
|
|
if (nsLayoutAtoms::tableCellFrame == tableType) {
|
|
nsIFrame* continuingCellFrame;
|
|
|
|
CreateContinuingFrame(aPresContext, cellFrame, newFrame, &continuingCellFrame);
|
|
newChildList.AddChild(continuingCellFrame);
|
|
}
|
|
|
|
NS_IF_RELEASE(tableType);
|
|
cellFrame->GetNextSibling(&cellFrame);
|
|
}
|
|
|
|
// Set the table cell's initial child list
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull, newChildList.childList);
|
|
}
|
|
|
|
} else if (nsLayoutAtoms::tableCellFrame == frameType) {
|
|
rv = NS_NewTableCellFrame(newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, content, aParentFrame, styleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
styleContext, PR_FALSE);
|
|
|
|
// Create a continuing area frame
|
|
nsIFrame* areaFrame;
|
|
nsIFrame* continuingAreaFrame;
|
|
aFrame->FirstChild(nsnull, &areaFrame);
|
|
CreateContinuingFrame(aPresContext, areaFrame, newFrame, &continuingAreaFrame);
|
|
|
|
// Set the table cell's initial child list
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull, continuingAreaFrame);
|
|
}
|
|
|
|
} else if (nsLayoutAtoms::lineFrame == frameType) {
|
|
rv = NS_NewFirstLineFrame(&newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, content, aParentFrame, styleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
styleContext, PR_FALSE);
|
|
}
|
|
|
|
} else if (nsLayoutAtoms::letterFrame == frameType) {
|
|
rv = NS_NewFirstLetterFrame(&newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
newFrame->Init(*aPresContext, content, aParentFrame, styleContext, aFrame);
|
|
nsHTMLContainerFrame::CreateViewForFrame(*aPresContext, newFrame,
|
|
styleContext, PR_FALSE);
|
|
}
|
|
|
|
} else {
|
|
NS_ASSERTION(PR_FALSE, "unexpected frame type");
|
|
rv = NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
*aContinuingFrame = newFrame;
|
|
NS_RELEASE(styleContext);
|
|
NS_IF_RELEASE(content);
|
|
NS_IF_RELEASE(frameType);
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::RecreateFramesForContent(nsIPresContext* aPresContext,
|
|
nsIContent* aContent)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
|
|
nsIContent *container;
|
|
rv = aContent->GetParent(container);
|
|
if (container) {
|
|
PRInt32 indexInContainer;
|
|
rv = container->IndexOf(aContent, indexInContainer);
|
|
if (NS_OK == rv) {
|
|
// First, remove the frames associated with the content object on which the
|
|
// attribute change occurred.
|
|
rv = ContentRemoved(aPresContext, container, aContent, indexInContainer);
|
|
|
|
if (NS_OK == rv) {
|
|
// Now, recreate the frames associated with this content object.
|
|
rv = ContentInserted(aPresContext, container, aContent, indexInContainer);
|
|
}
|
|
}
|
|
NS_RELEASE(container);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
// Block frame construction code
|
|
|
|
PRBool
|
|
nsCSSFrameConstructor::HaveFirstLetterStyle(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aStyleContext)
|
|
{
|
|
nsIStyleContext* fls = nsnull;
|
|
aPresContext->ProbePseudoStyleContextFor(aContent,
|
|
nsHTMLAtoms::firstLetterPseudo,
|
|
aStyleContext, PR_FALSE, &fls);
|
|
if (fls) {
|
|
NS_RELEASE(fls);
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsIStyleContext*
|
|
nsCSSFrameConstructor::GetFirstLetterStyle(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aStyleContext)
|
|
{
|
|
nsIStyleContext* fls = nsnull;
|
|
aPresContext->ResolvePseudoStyleContextFor(aContent,
|
|
nsHTMLAtoms::firstLetterPseudo,
|
|
aStyleContext, PR_FALSE, &fls);
|
|
return fls;
|
|
}
|
|
|
|
static PRBool
|
|
ShouldCreateFirstLetterFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aFrame)
|
|
{
|
|
PRBool result = PR_FALSE;
|
|
NS_PRECONDITION(aFrame, "null ptr");
|
|
|
|
// See if the first frame isa text frame and if it is, that it has
|
|
// some non-whitespace content.
|
|
nsIAtom* frameType;
|
|
aFrame->GetFrameType(&frameType);
|
|
if (frameType == nsLayoutAtoms::textFrame) {
|
|
nsITextContent* tc = nsnull;
|
|
nsresult rv = aContent->QueryInterface(kITextContentIID, (void**) &tc);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
tc->IsOnlyWhitespace(&result);
|
|
result = !result;
|
|
NS_RELEASE(tc);
|
|
}
|
|
}
|
|
NS_IF_RELEASE(frameType);
|
|
return result;
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::ProcessBlockChildren(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aFrame,
|
|
nsAbsoluteItems& aAbsoluteItems,
|
|
nsFrameItems& aFrameItems,
|
|
nsAbsoluteItems& aFixedItems,
|
|
nsAbsoluteItems& aFloatingItems,
|
|
PRBool aCanHaveGeneratedContent)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
nsIStyleContext* styleContext = nsnull;
|
|
|
|
if (aCanHaveGeneratedContent) {
|
|
// Probe for generated content before
|
|
nsIFrame* generatedFrame;
|
|
aFrame->GetStyleContext(&styleContext);
|
|
if (CreateGeneratedContentFrame(aPresContext, aFrame, aContent,
|
|
styleContext, nsCSSAtoms::beforePseudo,
|
|
&generatedFrame)) {
|
|
// Add the generated frame to the child list
|
|
aFrameItems.AddChild(generatedFrame);
|
|
}
|
|
}
|
|
|
|
// Iterate the child content objects and construct frames
|
|
PRInt32 count;
|
|
aContent->ChildCount(count);
|
|
for (PRInt32 i = 0; i < count; i++) {
|
|
nsCOMPtr<nsIContent> childContent;
|
|
if (NS_SUCCEEDED(aContent->ChildAt(i, *getter_AddRefs(childContent)))) {
|
|
// Construct a child frame
|
|
rv = ConstructFrame(aPresContext, childContent, aFrame, aAbsoluteItems,
|
|
aFrameItems, aFixedItems, aFloatingItems,
|
|
i == 0);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
// Process first-letter frame that is the immediate child of the parent
|
|
if ((i == 0) &&
|
|
ShouldCreateFirstLetterFrame(aPresContext, childContent,
|
|
aFrameItems.childList)) {
|
|
rv = WrapTextFrame(aPresContext, aFrameItems.childList, aContent,
|
|
childContent, aFrame, aFrameItems, aFloatingItems);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (aCanHaveGeneratedContent) {
|
|
// Probe for generated content after
|
|
nsIFrame* generatedFrame;
|
|
if (CreateGeneratedContentFrame(aPresContext, aFrame, aContent,
|
|
styleContext, nsCSSAtoms::afterPseudo,
|
|
&generatedFrame)) {
|
|
// Add the generated frame to the child list
|
|
aFrameItems.AddChild(generatedFrame);
|
|
}
|
|
}
|
|
|
|
NS_IF_RELEASE(styleContext);
|
|
return rv;
|
|
}
|
|
|
|
// Determine how many characters in the text fragment that applies to
|
|
// the first letter
|
|
static PRInt32
|
|
FirstLetterCount(nsTextFragment* aFragments, PRInt32 aNumFragments)
|
|
{
|
|
PRInt32 count = 0;
|
|
PRInt32 firstLetterLength = 0;
|
|
PRBool done = PR_FALSE;
|
|
while (aNumFragments && !done) {
|
|
PRInt32 i, n = aFragments->GetLength();
|
|
for (i = 0; i < n; i++) {
|
|
PRUnichar ch = aFragments->CharAt(i);
|
|
if (XP_IS_SPACE(ch)) {
|
|
if (firstLetterLength) {
|
|
done = PR_TRUE;
|
|
break;
|
|
}
|
|
count++;
|
|
continue;
|
|
}
|
|
// XXX I18n
|
|
if ((ch == '\'') || (ch == '\"')) {
|
|
if (firstLetterLength) {
|
|
done = PR_TRUE;
|
|
break;
|
|
}
|
|
// keep looping
|
|
firstLetterLength = 1;
|
|
}
|
|
else {
|
|
count++;
|
|
done = PR_TRUE;
|
|
break;
|
|
}
|
|
}
|
|
aFragments++;
|
|
aNumFragments--;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static PRInt32
|
|
TotalLength(nsTextFragment* aFragments, PRInt32 aNumFragments)
|
|
{
|
|
PRInt32 sum = 0;
|
|
while (--aNumFragments >= 0) {
|
|
sum += aFragments->GetLength();
|
|
}
|
|
return sum;
|
|
}
|
|
|
|
static PRBool NeedFirstLetterContinuation(nsIContent* aContent)
|
|
{
|
|
NS_PRECONDITION(aContent, "null ptr");
|
|
|
|
PRBool result = PR_FALSE;
|
|
if (aContent) {
|
|
nsITextContent* tc = nsnull;
|
|
nsresult rv = aContent->QueryInterface(kITextContentIID, (void**) &tc);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsTextFragment* frags = nsnull;
|
|
PRInt32 numFrags = 0;
|
|
tc->GetText(frags, numFrags);
|
|
PRInt32 flc = FirstLetterCount(frags, numFrags);
|
|
PRInt32 tl = TotalLength(frags, numFrags);
|
|
if (flc < tl) {
|
|
result = PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void
|
|
nsCSSFrameConstructor::CreateFloatingFirstLetterFrame(
|
|
nsIPresContext* aPresContext,
|
|
nsIFrame* aTextFrame,
|
|
nsIContent* aContent,
|
|
nsIContent* aChildContent,
|
|
nsIFrame* aParentFrame,
|
|
nsFrameItems& aFrameItems,
|
|
nsFrameItems& aFloatingItems,
|
|
nsIStyleContext* aStyleContext)
|
|
{
|
|
// See if we will need to continue the text frame (does it contain
|
|
// more than just the first-letter text or not?) If it does, then we
|
|
// create (in advance) a continuation frame for it.
|
|
nsIFrame* nextTextFrame = nsnull;
|
|
if (NeedFirstLetterContinuation(aChildContent)) {
|
|
// Create continuation
|
|
CreateContinuingFrame(aPresContext, aTextFrame, aParentFrame,
|
|
&nextTextFrame);
|
|
}
|
|
|
|
|
|
// Create the first-letter-frame
|
|
nsIFrame* firstLetterFrame;
|
|
NS_NewFirstLetterFrame(&firstLetterFrame);
|
|
firstLetterFrame->Init(*aPresContext, aContent, aParentFrame,
|
|
aStyleContext, nsnull);
|
|
firstLetterFrame->SetInitialChildList(*aPresContext, nsnull, aTextFrame);
|
|
aTextFrame->SetParent(firstLetterFrame);
|
|
|
|
// Now make the placeholder
|
|
nsIFrame* placeholderFrame;
|
|
CreatePlaceholderFrameFor(aPresContext, aContent, firstLetterFrame,
|
|
aStyleContext, aParentFrame,
|
|
&placeholderFrame);
|
|
|
|
// Update the child lists for the frame containing the floating first
|
|
// letter frame.
|
|
aFloatingItems.AddChild(firstLetterFrame);
|
|
aFrameItems.childList = placeholderFrame;
|
|
aFrameItems.lastChild = placeholderFrame;
|
|
if (nextTextFrame) {
|
|
aFrameItems.AddChild(nextTextFrame);
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsCSSFrameConstructor::WrapTextFrame(nsIPresContext* aPresContext,
|
|
nsIFrame* aTextFrame,
|
|
nsIContent* aContent,
|
|
nsIContent* aChildContent,
|
|
nsIFrame* aParentFrame,
|
|
nsFrameItems& aFrameItems,
|
|
nsFrameItems& aFloatingItems)
|
|
{
|
|
// Get style context for the first-letter-frame
|
|
nsIStyleContext* psc;
|
|
if (NS_SUCCEEDED(aParentFrame->GetStyleContext(&psc)) && psc) {
|
|
nsIStyleContext* sc = GetFirstLetterStyle(aPresContext, aContent, psc);
|
|
if (sc) {
|
|
const nsStyleDisplay* display = (const nsStyleDisplay*)
|
|
sc->GetStyleData(eStyleStruct_Display);
|
|
if (display->IsFloating()) {
|
|
CreateFloatingFirstLetterFrame(aPresContext, aTextFrame, aContent,
|
|
aChildContent, aParentFrame,
|
|
aFrameItems, aFloatingItems, sc);
|
|
}
|
|
else {
|
|
nsIFrame* newFrame;
|
|
nsresult rv = NS_NewFirstLetterFrame(&newFrame);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// Initialize the first-letter-frame.
|
|
rv = newFrame->Init(*aPresContext, aContent, aParentFrame, sc,
|
|
nsnull);
|
|
newFrame->SetInitialChildList(*aPresContext, nsnull, aTextFrame);
|
|
aTextFrame->SetParent(newFrame);
|
|
|
|
// Replace the text frame in the flow child list with the
|
|
// first-letter-frame
|
|
aFrameItems.childList = newFrame;
|
|
aFrameItems.lastChild = newFrame;
|
|
}
|
|
}
|
|
NS_RELEASE(sc);
|
|
}
|
|
NS_RELEASE(psc);
|
|
}
|
|
return NS_OK;
|
|
}
|