e7ad4f7000
start loading the background images when we resolve style on an object that needs them instead of when we scroll down and see it for the first time. Bug 57607, r=pavlov, sr=dbaron git-svn-id: svn://10.0.0.236/trunk@153725 18797224-902f-48f8-a5cc-f745e15eee43
4612 lines
168 KiB
C++
4612 lines
168 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Original Author: David W. Hyatt (hyatt@netscape.com)
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* Daniel Glazman <glazman@netscape.com>
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* Roger B. Sidje <rbs@maths.uq.edu.au>
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*
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nscore.h"
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#include "nsIServiceManager.h"
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#include "nsRuleNode.h"
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#include "nsIDeviceContext.h"
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#include "nsILookAndFeel.h"
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#include "nsIPresShell.h"
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#include "nsIFontMetrics.h"
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#include "nsIDocShellTreeItem.h"
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#include "nsStyleUtil.h"
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#include "nsCSSPseudoElements.h"
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#include "nsThemeConstants.h"
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#include "nsITheme.h"
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#include "pldhash.h"
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#include "nsStyleContext.h"
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#include "nsStyleSet.h"
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#include "nsSize.h"
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#include "imgIRequest.h"
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|
|
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/*
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* For storage of an |nsRuleNode|'s children in a linked list.
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*/
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struct nsRuleList {
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nsRuleNode* mRuleNode;
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nsRuleList* mNext;
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public:
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nsRuleList(nsRuleNode* aNode, nsRuleList* aNext= nsnull) {
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MOZ_COUNT_CTOR(nsRuleList);
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mRuleNode = aNode;
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mNext = aNext;
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}
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~nsRuleList() {
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MOZ_COUNT_DTOR(nsRuleList);
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mRuleNode->Destroy();
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if (mNext)
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mNext->Destroy(mNext->mRuleNode->mPresContext);
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}
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void* operator new(size_t sz, nsIPresContext* aContext) CPP_THROW_NEW {
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void* result = nsnull;
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aContext->AllocateFromShell(sz, &result);
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return result;
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};
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void operator delete(void* aPtr) {} // Does nothing. The arena will free us up when the rule tree
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// dies.
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|
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void Destroy(nsIPresContext* aContext) {
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this->~nsRuleList();
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aContext->FreeToShell(sizeof(nsRuleList), this);
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}
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// Destroy this node, but not its rule node or the rest of the list.
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nsRuleList* DestroySelf(nsIPresContext* aContext) {
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nsRuleList *next = mNext;
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MOZ_COUNT_DTOR(nsRuleList); // hack
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aContext->FreeToShell(sizeof(nsRuleList), this);
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return next;
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}
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};
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|
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/*
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* For storage of an |nsRuleNode|'s children in a PLDHashTable.
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*/
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struct ChildrenHashEntry : public PLDHashEntryHdr {
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// key (the rule) is |mRuleNode->GetRule()|
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nsRuleNode *mRuleNode;
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};
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PR_STATIC_CALLBACK(const void *)
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ChildrenHashGetKey(PLDHashTable *table, PLDHashEntryHdr *hdr)
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{
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ChildrenHashEntry *entry = NS_STATIC_CAST(ChildrenHashEntry*, hdr);
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return entry->mRuleNode->GetRule();
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}
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PR_STATIC_CALLBACK(PRBool)
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ChildrenHashMatchEntry(PLDHashTable *table, const PLDHashEntryHdr *hdr,
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const void *key)
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{
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const ChildrenHashEntry *entry =
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NS_STATIC_CAST(const ChildrenHashEntry*, hdr);
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return entry->mRuleNode->GetRule() == key;
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}
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static PLDHashTableOps ChildrenHashOps = {
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// It's probably better to allocate the table itself using malloc and
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// free rather than the pres shell's arena because the table doesn't
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// grow very often and the pres shell's arena doesn't recycle very
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// large size allocations.
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PL_DHashAllocTable,
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PL_DHashFreeTable,
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ChildrenHashGetKey,
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PL_DHashVoidPtrKeyStub,
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ChildrenHashMatchEntry,
|
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PL_DHashMoveEntryStub,
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PL_DHashClearEntryStub,
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PL_DHashFinalizeStub,
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NULL
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};
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|
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// EnsureBlockDisplay:
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// - if the display value (argument) is not a block-type
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// then we set it to a valid block display value
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// - For enforcing the floated/positioned element CSS2 rules
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static void EnsureBlockDisplay(PRUint8& display)
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|
{
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|
// see if the display value is already a block
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switch (display) {
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case NS_STYLE_DISPLAY_NONE :
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// never change display:none *ever*
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case NS_STYLE_DISPLAY_TABLE :
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case NS_STYLE_DISPLAY_BLOCK :
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case NS_STYLE_DISPLAY_LIST_ITEM :
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// do not muck with these at all - already blocks
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// This is equivalent to nsStyleDisplay::IsBlockLevel. (XXX Maybe we
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// should just call that?)
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break;
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case NS_STYLE_DISPLAY_INLINE_TABLE :
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// make inline tables into tables
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display = NS_STYLE_DISPLAY_TABLE;
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break;
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default :
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// make it a block
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display = NS_STYLE_DISPLAY_BLOCK;
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}
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}
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nsString& Unquote(nsString& aString)
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{
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PRUnichar start = aString.First();
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PRUnichar end = aString.Last();
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if ((start == end) &&
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((start == PRUnichar('\"')) ||
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(start == PRUnichar('\'')))) {
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PRInt32 length = aString.Length();
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aString.Truncate(length - 1);
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aString.Cut(0, 1);
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}
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return aString;
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}
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nscoord CalcLength(const nsCSSValue& aValue,
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const nsFont* aFont,
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nsStyleContext* aStyleContext,
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nsIPresContext* aPresContext,
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PRBool& aInherited)
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{
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NS_ASSERTION(aValue.IsLengthUnit(), "not a length unit");
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if (aValue.IsFixedLengthUnit()) {
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return aValue.GetLengthTwips();
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}
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nsCSSUnit unit = aValue.GetUnit();
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if (unit == eCSSUnit_Pixel) {
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float p2t;
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aPresContext->GetScaledPixelsToTwips(&p2t);
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return NSFloatPixelsToTwips(aValue.GetFloatValue(), p2t);
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}
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// Common code for all units other than pixels:
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aInherited = PR_TRUE;
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const nsFont* font;
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if (aStyleContext) {
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font = &aStyleContext->GetStyleFont()->mFont;
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} else {
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font = aFont;
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}
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switch (unit) {
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case eCSSUnit_EM:
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case eCSSUnit_Char: {
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return NSToCoordRound(aValue.GetFloatValue() * (float)font->size);
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// XXX scale against font metrics height instead?
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}
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case eCSSUnit_EN: {
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return NSToCoordRound((aValue.GetFloatValue() * (float)font->size) / 2.0f);
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}
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case eCSSUnit_XHeight: {
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nsCOMPtr<nsIFontMetrics> fm;
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aPresContext->GetMetricsFor(*font, getter_AddRefs(fm));
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nscoord xHeight;
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fm->GetXHeight(xHeight);
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return NSToCoordRound(aValue.GetFloatValue() * (float)xHeight);
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}
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case eCSSUnit_CapHeight: {
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NS_NOTYETIMPLEMENTED("cap height unit");
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nscoord capHeight = ((font->size / 3) * 2); // XXX HACK!
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return NSToCoordRound(aValue.GetFloatValue() * (float)capHeight);
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}
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default:
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NS_NOTREACHED("unexpected unit");
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break;
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}
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return 0;
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}
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#define SETCOORD_NORMAL 0x01 // N
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#define SETCOORD_AUTO 0x02 // A
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#define SETCOORD_INHERIT 0x04 // H
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#define SETCOORD_PERCENT 0x08 // P
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#define SETCOORD_FACTOR 0x10 // F
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#define SETCOORD_LENGTH 0x20 // L
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#define SETCOORD_INTEGER 0x40 // I
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#define SETCOORD_ENUMERATED 0x80 // E
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#define SETCOORD_LP (SETCOORD_LENGTH | SETCOORD_PERCENT)
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#define SETCOORD_LH (SETCOORD_LENGTH | SETCOORD_INHERIT)
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#define SETCOORD_AH (SETCOORD_AUTO | SETCOORD_INHERIT)
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#define SETCOORD_LPH (SETCOORD_LP | SETCOORD_INHERIT)
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#define SETCOORD_LPAH (SETCOORD_LP | SETCOORD_AH)
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#define SETCOORD_LPEH (SETCOORD_LP | SETCOORD_ENUMERATED | SETCOORD_INHERIT)
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#define SETCOORD_LE (SETCOORD_LENGTH | SETCOORD_ENUMERATED)
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#define SETCOORD_LEH (SETCOORD_LE | SETCOORD_INHERIT)
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#define SETCOORD_IA (SETCOORD_INTEGER | SETCOORD_AUTO)
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#define SETCOORD_LAE (SETCOORD_LENGTH | SETCOORD_AUTO | SETCOORD_ENUMERATED)
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static PRBool SetCoord(const nsCSSValue& aValue, nsStyleCoord& aCoord,
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const nsStyleCoord& aParentCoord,
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PRInt32 aMask, nsStyleContext* aStyleContext,
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nsIPresContext* aPresContext, PRBool& aInherited)
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{
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PRBool result = PR_TRUE;
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if (aValue.GetUnit() == eCSSUnit_Null) {
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result = PR_FALSE;
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}
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else if (((aMask & SETCOORD_LENGTH) != 0) &&
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(aValue.GetUnit() == eCSSUnit_Char)) {
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aCoord.SetIntValue(NSToIntFloor(aValue.GetFloatValue()), eStyleUnit_Chars);
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|
}
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else if (((aMask & SETCOORD_LENGTH) != 0) &&
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aValue.IsLengthUnit()) {
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aCoord.SetCoordValue(CalcLength(aValue, nsnull, aStyleContext, aPresContext, aInherited));
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}
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else if (((aMask & SETCOORD_PERCENT) != 0) &&
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(aValue.GetUnit() == eCSSUnit_Percent)) {
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aCoord.SetPercentValue(aValue.GetPercentValue());
|
|
}
|
|
else if (((aMask & SETCOORD_INTEGER) != 0) &&
|
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(aValue.GetUnit() == eCSSUnit_Integer)) {
|
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aCoord.SetIntValue(aValue.GetIntValue(), eStyleUnit_Integer);
|
|
}
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else if (((aMask & SETCOORD_ENUMERATED) != 0) &&
|
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(aValue.GetUnit() == eCSSUnit_Enumerated)) {
|
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aCoord.SetIntValue(aValue.GetIntValue(), eStyleUnit_Enumerated);
|
|
}
|
|
else if (((aMask & SETCOORD_AUTO) != 0) &&
|
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(aValue.GetUnit() == eCSSUnit_Auto)) {
|
|
aCoord.SetAutoValue();
|
|
}
|
|
else if (((aMask & SETCOORD_INHERIT) != 0) &&
|
|
(aValue.GetUnit() == eCSSUnit_Inherit)) {
|
|
aCoord = aParentCoord; // just inherit value from parent
|
|
aInherited = PR_TRUE;
|
|
}
|
|
else if (((aMask & SETCOORD_NORMAL) != 0) &&
|
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(aValue.GetUnit() == eCSSUnit_Normal)) {
|
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aCoord.SetNormalValue();
|
|
}
|
|
else if (((aMask & SETCOORD_FACTOR) != 0) &&
|
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(aValue.GetUnit() == eCSSUnit_Number)) {
|
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aCoord.SetFactorValue(aValue.GetFloatValue());
|
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}
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else {
|
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result = PR_FALSE; // didn't set anything
|
|
}
|
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return result;
|
|
}
|
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|
|
static PRBool SetColor(const nsCSSValue& aValue, const nscolor aParentColor,
|
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nsIPresContext* aPresContext, nscolor& aResult, PRBool& aInherited)
|
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{
|
|
PRBool result = PR_FALSE;
|
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nsCSSUnit unit = aValue.GetUnit();
|
|
|
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if (eCSSUnit_Color == unit) {
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aResult = aValue.GetColorValue();
|
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result = PR_TRUE;
|
|
}
|
|
else if (eCSSUnit_String == unit) {
|
|
nsAutoString value;
|
|
aValue.GetStringValue(value);
|
|
nscolor rgba;
|
|
if (NS_ColorNameToRGB(value, &rgba)) {
|
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aResult = rgba;
|
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result = PR_TRUE;
|
|
}
|
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}
|
|
else if (eCSSUnit_Integer == unit) {
|
|
PRInt32 intValue = aValue.GetIntValue();
|
|
if (0 <= intValue) {
|
|
nsILookAndFeel* look = aPresContext->LookAndFeel();
|
|
nsILookAndFeel::nsColorID colorID = (nsILookAndFeel::nsColorID) intValue;
|
|
if (NS_SUCCEEDED(look->GetColor(colorID, aResult))) {
|
|
result = PR_TRUE;
|
|
}
|
|
}
|
|
else {
|
|
switch (intValue) {
|
|
case NS_COLOR_MOZ_HYPERLINKTEXT:
|
|
aResult = aPresContext->DefaultLinkColor();
|
|
break;
|
|
case NS_COLOR_MOZ_VISITEDHYPERLINKTEXT:
|
|
aResult = aPresContext->DefaultVisitedLinkColor();
|
|
break;
|
|
case NS_COLOR_MOZ_ACTIVEHYPERLINKTEXT:
|
|
aResult = aPresContext->DefaultActiveLinkColor();
|
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break;
|
|
default:
|
|
NS_NOTREACHED("Should never have an unknown negative colorID.");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else if (eCSSUnit_Inherit == unit) {
|
|
aResult = aParentColor;
|
|
result = PR_TRUE;
|
|
aInherited = PR_TRUE;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// Overloaded new operator. Initializes the memory to 0 and relies on an arena
|
|
// (which comes from the presShell) to perform the allocation.
|
|
void*
|
|
nsRuleNode::operator new(size_t sz, nsIPresContext* aPresContext) CPP_THROW_NEW
|
|
{
|
|
// Check the recycle list first.
|
|
void* result = nsnull;
|
|
aPresContext->AllocateFromShell(sz, &result);
|
|
return result;
|
|
}
|
|
|
|
// Overridden to prevent the global delete from being called, since the memory
|
|
// came out of an nsIArena instead of the global delete operator's heap.
|
|
void
|
|
nsRuleNode::Destroy()
|
|
{
|
|
// Destroy ourselves.
|
|
this->~nsRuleNode();
|
|
|
|
// Don't let the memory be freed, since it will be recycled
|
|
// instead. Don't call the global operator delete.
|
|
mPresContext->FreeToShell(sizeof(nsRuleNode), this);
|
|
}
|
|
|
|
nsRuleNode* nsRuleNode::CreateRootNode(nsIPresContext* aPresContext)
|
|
{
|
|
return new (aPresContext) nsRuleNode(aPresContext, nsnull, nsnull);
|
|
}
|
|
|
|
nsILanguageAtomService* nsRuleNode::gLangService = nsnull;
|
|
|
|
nsRuleNode::nsRuleNode(nsIPresContext* aContext, nsIStyleRule* aRule, nsRuleNode* aParent)
|
|
: mPresContext(aContext),
|
|
mParent(aParent),
|
|
mRule(aRule),
|
|
mChildrenTaggedPtr(nsnull),
|
|
mDependentBits(0),
|
|
mNoneBits(0)
|
|
{
|
|
MOZ_COUNT_CTOR(nsRuleNode);
|
|
}
|
|
|
|
PR_STATIC_CALLBACK(PLDHashOperator)
|
|
DeleteRuleNodeChildren(PLDHashTable *table, PLDHashEntryHdr *hdr,
|
|
PRUint32 number, void *arg)
|
|
{
|
|
ChildrenHashEntry *entry = NS_STATIC_CAST(ChildrenHashEntry*, hdr);
|
|
entry->mRuleNode->Destroy();
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
nsRuleNode::~nsRuleNode()
|
|
{
|
|
MOZ_COUNT_DTOR(nsRuleNode);
|
|
if (mStyleData.mResetData || mStyleData.mInheritedData)
|
|
mStyleData.Destroy(0, mPresContext);
|
|
if (ChildrenAreHashed()) {
|
|
PLDHashTable *children = ChildrenHash();
|
|
PL_DHashTableEnumerate(children, DeleteRuleNodeChildren, nsnull);
|
|
PL_DHashTableDestroy(children);
|
|
} else if (HaveChildren())
|
|
ChildrenList()->Destroy(mPresContext);
|
|
}
|
|
|
|
nsresult
|
|
nsRuleNode::Transition(nsIStyleRule* aRule, nsRuleNode** aResult)
|
|
{
|
|
nsRuleNode* next = nsnull;
|
|
|
|
if (HaveChildren() && !ChildrenAreHashed()) {
|
|
PRInt32 numKids = 0;
|
|
nsRuleList* curr = ChildrenList();
|
|
while (curr && curr->mRuleNode->mRule != aRule) {
|
|
curr = curr->mNext;
|
|
++numKids;
|
|
}
|
|
if (curr)
|
|
next = curr->mRuleNode;
|
|
else if (numKids >= kMaxChildrenInList)
|
|
ConvertChildrenToHash();
|
|
}
|
|
|
|
if (ChildrenAreHashed()) {
|
|
ChildrenHashEntry *entry = NS_STATIC_CAST(ChildrenHashEntry*,
|
|
PL_DHashTableOperate(ChildrenHash(), aRule, PL_DHASH_ADD));
|
|
if (entry->mRuleNode)
|
|
next = entry->mRuleNode;
|
|
else {
|
|
next = entry->mRuleNode =
|
|
new (mPresContext) nsRuleNode(mPresContext, aRule, this);
|
|
if (!next) {
|
|
PL_DHashTableRawRemove(ChildrenHash(), entry);
|
|
*aResult = nsnull;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
} else if (!next) {
|
|
// Create the new entry in our list.
|
|
next = new (mPresContext) nsRuleNode(mPresContext, aRule, this);
|
|
if (!next) {
|
|
*aResult = nsnull;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
SetChildrenList(new (mPresContext) nsRuleList(next, ChildrenList()));
|
|
}
|
|
|
|
*aResult = next;
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsRuleNode::ConvertChildrenToHash()
|
|
{
|
|
NS_ASSERTION(!ChildrenAreHashed() && HaveChildren(),
|
|
"must have a non-empty list of children");
|
|
PLDHashTable *hash = PL_NewDHashTable(&ChildrenHashOps, nsnull,
|
|
sizeof(ChildrenHashEntry),
|
|
kMaxChildrenInList * 4);
|
|
if (!hash)
|
|
return;
|
|
for (nsRuleList* curr = ChildrenList(); curr;
|
|
curr = curr->DestroySelf(mPresContext)) {
|
|
// This will never fail because of the initial size we gave the table.
|
|
ChildrenHashEntry *entry = NS_STATIC_CAST(ChildrenHashEntry*,
|
|
PL_DHashTableOperate(hash, curr->mRuleNode->mRule, PL_DHASH_ADD));
|
|
NS_ASSERTION(!entry->mRuleNode, "duplicate entries in list");
|
|
entry->mRuleNode = curr->mRuleNode;
|
|
}
|
|
SetChildrenHash(hash);
|
|
}
|
|
|
|
PR_STATIC_CALLBACK(PLDHashOperator)
|
|
ClearStyleDataHelper(PLDHashTable *table, PLDHashEntryHdr *hdr,
|
|
PRUint32 number, void *arg)
|
|
{
|
|
ChildrenHashEntry *entry = NS_STATIC_CAST(ChildrenHashEntry*, hdr);
|
|
entry->mRuleNode->ClearStyleData();
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
nsresult
|
|
nsRuleNode::ClearStyleData()
|
|
{
|
|
// Blow away all data stored at this node.
|
|
if (mStyleData.mResetData || mStyleData.mInheritedData)
|
|
mStyleData.Destroy(0, mPresContext);
|
|
|
|
mNoneBits &= ~NS_STYLE_INHERIT_MASK;
|
|
mDependentBits &= ~NS_STYLE_INHERIT_MASK;
|
|
|
|
if (ChildrenAreHashed())
|
|
PL_DHashTableEnumerate(ChildrenHash(),
|
|
ClearStyleDataHelper, nsnull);
|
|
else
|
|
for (nsRuleList* curr = ChildrenList(); curr; curr = curr->mNext)
|
|
curr->mRuleNode->ClearStyleData();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
inline void
|
|
nsRuleNode::PropagateNoneBit(PRUint32 aBit, nsRuleNode* aHighestNode)
|
|
{
|
|
nsRuleNode* curr = this;
|
|
for (;;) {
|
|
NS_ASSERTION(!(curr->mNoneBits & aBit), "propagating too far");
|
|
curr->mNoneBits |= aBit;
|
|
if (curr == aHighestNode)
|
|
break;
|
|
curr = curr->mParent;
|
|
}
|
|
}
|
|
|
|
inline void
|
|
nsRuleNode::PropagateDependentBit(PRUint32 aBit, nsRuleNode* aHighestNode)
|
|
{
|
|
for (nsRuleNode* curr = this; curr != aHighestNode; curr = curr->mParent) {
|
|
if (curr->mDependentBits & aBit) {
|
|
#ifdef DEBUG
|
|
while (curr != aHighestNode) {
|
|
NS_ASSERTION(curr->mDependentBits & aBit, "bit not set");
|
|
curr = curr->mParent;
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
curr->mDependentBits |= aBit;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* The following "Check" functions are used for determining what type of
|
|
* sharing can be used for the data on this rule node. MORE HERE...
|
|
*/
|
|
|
|
/* the information for a property (or in some cases, a rect group of
|
|
properties) */
|
|
|
|
struct PropertyCheckData {
|
|
size_t offset;
|
|
nsCSSType type;
|
|
};
|
|
|
|
/* the information for all the properties in a style struct */
|
|
|
|
typedef nsRuleNode::RuleDetail
|
|
(* PR_CALLBACK CheckCallbackFn)(const nsRuleDataStruct& aData);
|
|
|
|
struct StructCheckData {
|
|
const PropertyCheckData* props;
|
|
PRInt32 nprops;
|
|
CheckCallbackFn callback;
|
|
};
|
|
|
|
static void
|
|
ExamineRectProperties(const nsCSSRect* aRect,
|
|
PRUint32& aSpecifiedCount, PRUint32& aInheritedCount)
|
|
{
|
|
if (!aRect)
|
|
return;
|
|
|
|
if (eCSSUnit_Null != aRect->mLeft.GetUnit()) {
|
|
aSpecifiedCount++;
|
|
if (eCSSUnit_Inherit == aRect->mLeft.GetUnit())
|
|
aInheritedCount++;
|
|
}
|
|
|
|
if (eCSSUnit_Null != aRect->mTop.GetUnit()) {
|
|
aSpecifiedCount++;
|
|
if (eCSSUnit_Inherit == aRect->mTop.GetUnit())
|
|
aInheritedCount++;
|
|
}
|
|
|
|
if (eCSSUnit_Null != aRect->mRight.GetUnit()) {
|
|
aSpecifiedCount++;
|
|
if (eCSSUnit_Inherit == aRect->mRight.GetUnit())
|
|
aInheritedCount++;
|
|
}
|
|
|
|
if (eCSSUnit_Null != aRect->mBottom.GetUnit()) {
|
|
aSpecifiedCount++;
|
|
if (eCSSUnit_Inherit == aRect->mBottom.GetUnit())
|
|
aInheritedCount++;
|
|
}
|
|
}
|
|
|
|
PR_STATIC_CALLBACK(nsRuleNode::RuleDetail)
|
|
CheckFontCallback(const nsRuleDataStruct& aData)
|
|
{
|
|
const nsRuleDataFont& fontData =
|
|
NS_STATIC_CAST(const nsRuleDataFont&, aData);
|
|
if (eCSSUnit_Enumerated == fontData.mFamily.GetUnit()) {
|
|
// A special case. We treat this as a fully specified font,
|
|
// since no other font props are legal with a system font.
|
|
PRInt32 family = fontData.mFamily.GetIntValue();
|
|
if ((family == NS_STYLE_FONT_CAPTION) ||
|
|
(family == NS_STYLE_FONT_ICON) ||
|
|
(family == NS_STYLE_FONT_MENU) ||
|
|
(family == NS_STYLE_FONT_MESSAGE_BOX) ||
|
|
(family == NS_STYLE_FONT_SMALL_CAPTION) ||
|
|
(family == NS_STYLE_FONT_STATUS_BAR) ||
|
|
(family == NS_STYLE_FONT_WINDOW) ||
|
|
(family == NS_STYLE_FONT_DOCUMENT) ||
|
|
(family == NS_STYLE_FONT_WORKSPACE) ||
|
|
(family == NS_STYLE_FONT_DESKTOP) ||
|
|
(family == NS_STYLE_FONT_INFO) ||
|
|
(family == NS_STYLE_FONT_DIALOG) ||
|
|
(family == NS_STYLE_FONT_BUTTON) ||
|
|
(family == NS_STYLE_FONT_PULL_DOWN_MENU) ||
|
|
(family == NS_STYLE_FONT_LIST) ||
|
|
(family == NS_STYLE_FONT_FIELD))
|
|
// Mixed rather than Reset in case another sub-property has
|
|
// an explicit 'inherit'. XXXperf Could check them.
|
|
return nsRuleNode::eRuleFullMixed;
|
|
}
|
|
return nsRuleNode::eRuleUnknown;
|
|
}
|
|
|
|
// for nsCSSPropList.h, so we get information on things in the style
|
|
// structs but not nsCSS*
|
|
#define CSS_PROP_INCLUDE_NOT_CSS
|
|
|
|
static const PropertyCheckData FontCheckProperties[] = {
|
|
#define CSS_PROP_FONT(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_FONT
|
|
};
|
|
|
|
static const PropertyCheckData DisplayCheckProperties[] = {
|
|
#define CSS_PROP_DISPLAY(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_DISPLAY
|
|
};
|
|
|
|
static const PropertyCheckData VisibilityCheckProperties[] = {
|
|
#define CSS_PROP_VISIBILITY(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_VISIBILITY
|
|
};
|
|
|
|
static const PropertyCheckData MarginCheckProperties[] = {
|
|
#define CSS_PROP_MARGIN(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_MARGIN
|
|
};
|
|
|
|
static const PropertyCheckData BorderCheckProperties[] = {
|
|
#define CSS_PROP_BORDER(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_BORDER
|
|
};
|
|
|
|
static const PropertyCheckData PaddingCheckProperties[] = {
|
|
#define CSS_PROP_PADDING(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_PADDING
|
|
};
|
|
|
|
static const PropertyCheckData OutlineCheckProperties[] = {
|
|
#define CSS_PROP_OUTLINE(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_OUTLINE
|
|
};
|
|
|
|
static const PropertyCheckData ListCheckProperties[] = {
|
|
#define CSS_PROP_LIST(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_LIST
|
|
};
|
|
|
|
static const PropertyCheckData ColorCheckProperties[] = {
|
|
#define CSS_PROP_COLOR(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_COLOR
|
|
};
|
|
|
|
static const PropertyCheckData BackgroundCheckProperties[] = {
|
|
#define CSS_PROP_BACKGROUND(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_BACKGROUND
|
|
};
|
|
|
|
static const PropertyCheckData PositionCheckProperties[] = {
|
|
#define CSS_PROP_POSITION(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_POSITION
|
|
};
|
|
|
|
static const PropertyCheckData TableCheckProperties[] = {
|
|
#define CSS_PROP_TABLE(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_TABLE
|
|
};
|
|
|
|
static const PropertyCheckData TableBorderCheckProperties[] = {
|
|
#define CSS_PROP_TABLEBORDER(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_TABLEBORDER
|
|
};
|
|
|
|
static const PropertyCheckData ContentCheckProperties[] = {
|
|
#define CSS_PROP_CONTENT(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_CONTENT
|
|
};
|
|
|
|
static const PropertyCheckData QuotesCheckProperties[] = {
|
|
#define CSS_PROP_QUOTES(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_QUOTES
|
|
};
|
|
|
|
static const PropertyCheckData TextCheckProperties[] = {
|
|
#define CSS_PROP_TEXT(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_TEXT
|
|
};
|
|
|
|
static const PropertyCheckData TextResetCheckProperties[] = {
|
|
#define CSS_PROP_TEXTRESET(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_TEXTRESET
|
|
};
|
|
|
|
static const PropertyCheckData UserInterfaceCheckProperties[] = {
|
|
#define CSS_PROP_USERINTERFACE(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_USERINTERFACE
|
|
};
|
|
|
|
static const PropertyCheckData UIResetCheckProperties[] = {
|
|
#define CSS_PROP_UIRESET(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_UIRESET
|
|
};
|
|
|
|
static const PropertyCheckData XULCheckProperties[] = {
|
|
#define CSS_PROP_XUL(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_XUL
|
|
};
|
|
|
|
#ifdef MOZ_SVG
|
|
static const PropertyCheckData SVGCheckProperties[] = {
|
|
#define CSS_PROP_SVG(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_SVG
|
|
};
|
|
|
|
static const PropertyCheckData SVGResetCheckProperties[] = {
|
|
#define CSS_PROP_SVGRESET(name_, id_, method_, datastruct_, member_, type_, iscoord_, kwtable_) \
|
|
{ offsetof(nsRuleData##datastruct_, member_), type_ },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP_SVGRESET
|
|
};
|
|
#endif
|
|
|
|
#undef CSS_PROP_INCLUDE_NOT_CSS
|
|
|
|
static const StructCheckData gCheckProperties[] = {
|
|
|
|
#define STYLE_STRUCT(name, checkdata_cb, ctor_args) \
|
|
{name##CheckProperties, \
|
|
sizeof(name##CheckProperties)/sizeof(PropertyCheckData), \
|
|
checkdata_cb},
|
|
#include "nsStyleStructList.h"
|
|
#undef STYLE_STRUCT
|
|
{nsnull, 0, nsnull}
|
|
|
|
};
|
|
|
|
|
|
|
|
// XXXldb Taking the address of a reference is evil.
|
|
|
|
inline const nsCSSValue&
|
|
ValueAtOffset(const nsRuleDataStruct& aRuleDataStruct, size_t aOffset)
|
|
{
|
|
return * NS_REINTERPRET_CAST(const nsCSSValue*,
|
|
NS_REINTERPRET_CAST(const char*, &aRuleDataStruct) + aOffset);
|
|
}
|
|
|
|
inline const nsCSSRect*
|
|
RectAtOffset(const nsRuleDataStruct& aRuleDataStruct, size_t aOffset)
|
|
{
|
|
return NS_REINTERPRET_CAST(const nsCSSRect*,
|
|
NS_REINTERPRET_CAST(const char*, &aRuleDataStruct) + aOffset);
|
|
}
|
|
|
|
inline const nsCSSValueList*
|
|
ValueListAtOffset(const nsRuleDataStruct& aRuleDataStruct, size_t aOffset)
|
|
{
|
|
return * NS_REINTERPRET_CAST(const nsCSSValueList*const*,
|
|
NS_REINTERPRET_CAST(const char*, &aRuleDataStruct) + aOffset);
|
|
}
|
|
|
|
inline const nsCSSValueList**
|
|
ValueListArrayAtOffset(const nsRuleDataStruct& aRuleDataStruct, size_t aOffset)
|
|
{
|
|
return * NS_REINTERPRET_CAST(const nsCSSValueList**const*,
|
|
NS_REINTERPRET_CAST(const char*, &aRuleDataStruct) + aOffset);
|
|
}
|
|
|
|
inline const nsCSSCounterData*
|
|
CounterDataAtOffset(const nsRuleDataStruct& aRuleDataStruct, size_t aOffset)
|
|
{
|
|
return * NS_REINTERPRET_CAST(const nsCSSCounterData*const*,
|
|
NS_REINTERPRET_CAST(const char*, &aRuleDataStruct) + aOffset);
|
|
}
|
|
|
|
inline const nsCSSQuotes*
|
|
QuotesAtOffset(const nsRuleDataStruct& aRuleDataStruct, size_t aOffset)
|
|
{
|
|
return * NS_REINTERPRET_CAST(const nsCSSQuotes*const*,
|
|
NS_REINTERPRET_CAST(const char*, &aRuleDataStruct) + aOffset);
|
|
}
|
|
|
|
inline nsRuleNode::RuleDetail
|
|
nsRuleNode::CheckSpecifiedProperties(const nsStyleStructID aSID,
|
|
const nsRuleDataStruct& aRuleDataStruct)
|
|
{
|
|
const StructCheckData *structData = gCheckProperties + aSID;
|
|
if (structData->callback) {
|
|
nsRuleNode::RuleDetail res = (*structData->callback)(aRuleDataStruct);
|
|
if (res != eRuleUnknown)
|
|
return res;
|
|
}
|
|
|
|
// Build a count of the:
|
|
PRUint32 total = 0, // total number of props in the struct
|
|
specified = 0, // number that were specified for this node
|
|
inherited = 0; // number that were 'inherit' (and not
|
|
// eCSSUnit_Inherit) for this node
|
|
PRBool canHaveExplicitInherit = PR_FALSE;
|
|
|
|
for (const PropertyCheckData *prop = structData->props,
|
|
*prop_end = prop + structData->nprops;
|
|
prop != prop_end;
|
|
++prop)
|
|
switch (prop->type) {
|
|
|
|
case eCSSType_Value:
|
|
{
|
|
++total;
|
|
const nsCSSValue& value = ValueAtOffset(aRuleDataStruct, prop->offset);
|
|
if (eCSSUnit_Null != value.GetUnit()) {
|
|
++specified;
|
|
if (eCSSUnit_Inherit == value.GetUnit()) {
|
|
++inherited;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eCSSType_Rect:
|
|
total += 4;
|
|
ExamineRectProperties(RectAtOffset(aRuleDataStruct, prop->offset),
|
|
specified, inherited);
|
|
break;
|
|
|
|
case eCSSType_ValueList:
|
|
{
|
|
++total;
|
|
const nsCSSValueList* valueList =
|
|
ValueListAtOffset(aRuleDataStruct, prop->offset);
|
|
if (valueList) {
|
|
++specified;
|
|
if (eCSSUnit_Inherit == valueList->mValue.GetUnit()) {
|
|
++inherited;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eCSSType_CounterData:
|
|
{
|
|
++total;
|
|
const nsCSSCounterData* counterData =
|
|
CounterDataAtOffset(aRuleDataStruct, prop->offset);
|
|
if (counterData) {
|
|
++specified;
|
|
if (eCSSUnit_Inherit == counterData->mCounter.GetUnit()) {
|
|
++inherited;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eCSSType_Quotes:
|
|
{
|
|
++total;
|
|
const nsCSSQuotes* quotes =
|
|
QuotesAtOffset(aRuleDataStruct, prop->offset);
|
|
if (quotes) {
|
|
++specified;
|
|
if (eCSSUnit_Inherit == quotes->mOpen.GetUnit()) {
|
|
++inherited;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eCSSType_Shadow:
|
|
NS_NOTYETIMPLEMENTED("nsCSSShadow not yet transferred to structs");
|
|
break;
|
|
|
|
default:
|
|
NS_NOTREACHED("unknown type");
|
|
break;
|
|
|
|
}
|
|
|
|
#if 0
|
|
printf("CheckSpecifiedProperties: SID=%d total=%d spec=%d inh=%d chei=%s.\n",
|
|
aSID, total, specified, inherited, canHaveExplicitInherit?"true":"false");
|
|
#endif
|
|
|
|
if (canHaveExplicitInherit) {
|
|
if (specified == total)
|
|
return eRuleFullMixed;
|
|
return eRulePartialMixed;
|
|
}
|
|
if (inherited == total)
|
|
return eRuleFullInherited;
|
|
if (specified == total) {
|
|
if (inherited == 0)
|
|
return eRuleFullReset;
|
|
return eRuleFullMixed;
|
|
}
|
|
if (specified == 0)
|
|
return eRuleNone;
|
|
if (specified == inherited)
|
|
return eRulePartialInherited;
|
|
if (inherited == 0)
|
|
return eRulePartialReset;
|
|
return eRulePartialMixed;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetDisplayData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataDisplay displayData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Display, mPresContext, aContext);
|
|
ruleData.mDisplayData = &displayData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Display, aContext, &ruleData, &displayData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetVisibilityData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataDisplay displayData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Visibility, mPresContext, aContext);
|
|
ruleData.mDisplayData = &displayData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Visibility, aContext, &ruleData, &displayData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetTextData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataText textData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Text, mPresContext, aContext);
|
|
ruleData.mTextData = &textData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Text, aContext, &ruleData, &textData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetTextResetData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataText textData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_TextReset, mPresContext, aContext);
|
|
ruleData.mTextData = &textData;
|
|
|
|
return WalkRuleTree(eStyleStruct_TextReset, aContext, &ruleData, &textData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetUserInterfaceData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataUserInterface uiData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_UserInterface, mPresContext, aContext);
|
|
ruleData.mUserInterfaceData = &uiData;
|
|
|
|
const nsStyleStruct* res = WalkRuleTree(eStyleStruct_UserInterface, aContext, &ruleData, &uiData);
|
|
uiData.mCursor = nsnull;
|
|
return res;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetUIResetData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataUserInterface uiData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_UIReset, mPresContext, aContext);
|
|
ruleData.mUserInterfaceData = &uiData;
|
|
|
|
const nsStyleStruct* res = WalkRuleTree(eStyleStruct_UIReset, aContext, &ruleData, &uiData);
|
|
uiData.mKeyEquivalent = nsnull;
|
|
return res;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetFontData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataFont fontData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Font, mPresContext, aContext);
|
|
ruleData.mFontData = &fontData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Font, aContext, &ruleData, &fontData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetColorData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataColor colorData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Color, mPresContext, aContext);
|
|
ruleData.mColorData = &colorData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Color, aContext, &ruleData, &colorData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetBackgroundData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataColor colorData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Background, mPresContext, aContext);
|
|
ruleData.mColorData = &colorData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Background, aContext, &ruleData, &colorData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetMarginData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataMargin marginData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Margin, mPresContext, aContext);
|
|
ruleData.mMarginData = &marginData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Margin, aContext, &ruleData, &marginData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetBorderData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataMargin marginData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Border, mPresContext, aContext);
|
|
ruleData.mMarginData = &marginData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Border, aContext, &ruleData, &marginData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetPaddingData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataMargin marginData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Padding, mPresContext, aContext);
|
|
ruleData.mMarginData = &marginData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Padding, aContext, &ruleData, &marginData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetOutlineData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataMargin marginData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Outline, mPresContext, aContext);
|
|
ruleData.mMarginData = &marginData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Outline, aContext, &ruleData, &marginData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetListData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataList listData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_List, mPresContext, aContext);
|
|
ruleData.mListData = &listData;
|
|
|
|
return WalkRuleTree(eStyleStruct_List, aContext, &ruleData, &listData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetPositionData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataPosition posData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Position, mPresContext, aContext);
|
|
ruleData.mPositionData = &posData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Position, aContext, &ruleData, &posData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetTableData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataTable tableData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Table, mPresContext, aContext);
|
|
ruleData.mTableData = &tableData;
|
|
|
|
return WalkRuleTree(eStyleStruct_Table, aContext, &ruleData, &tableData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetTableBorderData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataTable tableData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_TableBorder, mPresContext, aContext);
|
|
ruleData.mTableData = &tableData;
|
|
|
|
return WalkRuleTree(eStyleStruct_TableBorder, aContext, &ruleData, &tableData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetContentData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataContent contentData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Content, mPresContext, aContext);
|
|
ruleData.mContentData = &contentData;
|
|
|
|
const nsStyleStruct* res = WalkRuleTree(eStyleStruct_Content, aContext, &ruleData, &contentData);
|
|
contentData.mCounterIncrement = contentData.mCounterReset = nsnull;
|
|
contentData.mContent = nsnull; // We are sharing with some style rule. It really owns the data.
|
|
return res;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetQuotesData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataContent contentData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Quotes, mPresContext, aContext);
|
|
ruleData.mContentData = &contentData;
|
|
|
|
const nsStyleStruct* res = WalkRuleTree(eStyleStruct_Quotes, aContext, &ruleData, &contentData);
|
|
contentData.mQuotes = nsnull; // We are sharing with some style rule. It really owns the data.
|
|
return res;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetXULData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataXUL xulData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_XUL, mPresContext, aContext);
|
|
ruleData.mXULData = &xulData;
|
|
|
|
return WalkRuleTree(eStyleStruct_XUL, aContext, &ruleData, &xulData);
|
|
}
|
|
|
|
#ifdef MOZ_SVG
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetSVGData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataSVG svgData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_SVG, mPresContext, aContext);
|
|
ruleData.mSVGData = &svgData;
|
|
|
|
return WalkRuleTree(eStyleStruct_SVG, aContext, &ruleData, &svgData);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetSVGResetData(nsStyleContext* aContext)
|
|
{
|
|
nsRuleDataSVG svgData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_SVGReset, mPresContext, aContext);
|
|
ruleData.mSVGData = &svgData;
|
|
|
|
return WalkRuleTree(eStyleStruct_SVGReset, aContext, &ruleData, &svgData);
|
|
}
|
|
#endif
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::WalkRuleTree(const nsStyleStructID aSID,
|
|
nsStyleContext* aContext,
|
|
nsRuleData* aRuleData,
|
|
nsRuleDataStruct* aSpecificData)
|
|
{
|
|
// We start at the most specific rule in the tree.
|
|
nsStyleStruct* startStruct = nsnull;
|
|
|
|
nsRuleNode* ruleNode = this;
|
|
nsRuleNode* highestNode = nsnull; // The highest node in the rule tree
|
|
// that has the same properties
|
|
// specified for struct |aSID| as
|
|
// |this| does.
|
|
nsRuleNode* rootNode = this; // After the loop below, this will be the
|
|
// highest node that we've walked without
|
|
// finding cached data on the rule tree.
|
|
// If we don't find any cached data, it
|
|
// will be the root. (XXX misnamed)
|
|
RuleDetail detail = eRuleNone;
|
|
PRUint32 bit = nsCachedStyleData::GetBitForSID(aSID);
|
|
|
|
while (ruleNode) {
|
|
// See if this rule node has cached the fact that the remaining
|
|
// nodes along this path specify no data whatsoever.
|
|
if (ruleNode->mNoneBits & bit)
|
|
break;
|
|
|
|
// If the dependent bit is set on a rule node for this struct, that
|
|
// means its rule won't have any information to add, so skip it.
|
|
// XXXldb I don't understand why we need to check |detail| here, but
|
|
// we do.
|
|
if (detail == eRuleNone)
|
|
while (ruleNode->mDependentBits & bit) {
|
|
NS_ASSERTION(ruleNode->mStyleData.GetStyleData(aSID) == nsnull,
|
|
"dependent bit with cached data makes no sense");
|
|
// Climb up to the next rule in the tree (a less specific rule).
|
|
rootNode = ruleNode;
|
|
ruleNode = ruleNode->mParent;
|
|
NS_ASSERTION(!(ruleNode->mNoneBits & bit), "can't have both bits set");
|
|
}
|
|
|
|
// Check for cached data after the inner loop above -- otherwise
|
|
// we'll miss it.
|
|
startStruct = ruleNode->mStyleData.GetStyleData(aSID);
|
|
if (startStruct)
|
|
break; // We found a rule with fully specified data. We don't
|
|
// need to go up the tree any further, since the remainder
|
|
// of this branch has already been computed.
|
|
|
|
// Ask the rule to fill in the properties that it specifies.
|
|
nsIStyleRule *rule = ruleNode->mRule;
|
|
if (rule)
|
|
rule->MapRuleInfoInto(aRuleData);
|
|
|
|
// Now we check to see how many properties have been specified by
|
|
// the rules we've examined so far.
|
|
RuleDetail oldDetail = detail;
|
|
detail = CheckSpecifiedProperties(aSID, *aSpecificData);
|
|
|
|
if (oldDetail == eRuleNone && detail != eRuleNone)
|
|
highestNode = ruleNode;
|
|
|
|
if (detail == eRuleFullReset ||
|
|
detail == eRuleFullMixed ||
|
|
detail == eRuleFullInherited)
|
|
break; // We don't need to examine any more rules. All properties
|
|
// have been fully specified.
|
|
|
|
// Climb up to the next rule in the tree (a less specific rule).
|
|
rootNode = ruleNode;
|
|
ruleNode = ruleNode->mParent;
|
|
}
|
|
|
|
PRBool isReset = nsCachedStyleData::IsReset(aSID);
|
|
if (!highestNode)
|
|
highestNode = rootNode;
|
|
|
|
if (!aRuleData->mCanStoreInRuleTree)
|
|
detail = eRulePartialMixed; // Treat as though some data is specified to avoid
|
|
// the optimizations and force data computation.
|
|
|
|
if (detail == eRuleNone && startStruct && !aRuleData->mPostResolveCallback) {
|
|
// We specified absolutely no rule information, but a parent rule in the tree
|
|
// specified all the rule information. We set a bit along the branch from our
|
|
// node in the tree to the node that specified the data that tells nodes on that
|
|
// branch that they never need to examine their rules for this particular struct type
|
|
// ever again.
|
|
PropagateDependentBit(bit, ruleNode);
|
|
return startStruct;
|
|
}
|
|
else if (!startStruct && ((!isReset && (detail == eRuleNone || detail == eRulePartialInherited))
|
|
|| detail == eRuleFullInherited)) {
|
|
// We specified no non-inherited information and neither did any of
|
|
// our parent rules.
|
|
|
|
// We set a bit along the branch from the highest node (ruleNode)
|
|
// down to our node (this) indicating that no non-inherited data was
|
|
// specified. This bit is guaranteed to be set already on the path
|
|
// from the highest node to the root node in the case where
|
|
// (detail == eRuleNone), which is the most common case here.
|
|
// We must check |!isReset| because the Compute*Data functions for
|
|
// reset structs wouldn't handle none bits correctly.
|
|
if (highestNode != this && !isReset)
|
|
PropagateNoneBit(bit, highestNode);
|
|
|
|
// All information must necessarily be inherited from our parent style context.
|
|
// In the absence of any computed data in the rule tree and with
|
|
// no rules specified that didn't have values of 'inherit', we should check our parent.
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
if (parentContext) {
|
|
// We have a parent, and so we should just inherit from the parent.
|
|
// Set the inherit bits on our context. These bits tell the style context that
|
|
// it never has to go back to the rule tree for data. Instead the style context tree
|
|
// should be walked to find the data.
|
|
const nsStyleStruct* parentStruct = parentContext->GetStyleData(aSID);
|
|
aContext->AddStyleBit(bit); // makes const_cast OK.
|
|
aContext->SetStyle(aSID, NS_CONST_CAST(nsStyleStruct*, parentStruct));
|
|
return parentStruct;
|
|
}
|
|
else
|
|
// We are the root. In the case of fonts, the default values just
|
|
// come from the pres context.
|
|
return SetDefaultOnRoot(aSID, aContext);
|
|
}
|
|
|
|
// We need to compute the data from the information that the rules specified.
|
|
const nsStyleStruct* res;
|
|
#define STYLE_STRUCT_TEST aSID
|
|
#define STYLE_STRUCT(name, checkdata_cb, ctor_args) \
|
|
res = Compute##name##Data(startStruct, *aSpecificData, aContext, \
|
|
highestNode, detail, !aRuleData->mCanStoreInRuleTree);
|
|
#include "nsStyleStructList.h"
|
|
#undef STYLE_STRUCT
|
|
#undef STYLE_STRUCT_TEST
|
|
|
|
// If we have a post-resolve callback, handle that now.
|
|
if (aRuleData->mPostResolveCallback)
|
|
(*aRuleData->mPostResolveCallback)((nsStyleStruct*)res, aRuleData);
|
|
|
|
// Now return the result.
|
|
return res;
|
|
}
|
|
|
|
static PRBool
|
|
IsChrome(nsIPresContext* aPresContext)
|
|
{
|
|
PRBool isChrome = PR_FALSE;
|
|
nsCOMPtr<nsISupports> container = aPresContext->GetContainer();
|
|
if (container) {
|
|
nsresult result;
|
|
nsCOMPtr<nsIDocShellTreeItem> docShell(do_QueryInterface(container, &result));
|
|
if (NS_SUCCEEDED(result) && docShell) {
|
|
PRInt32 docShellType;
|
|
result = docShell->GetItemType(&docShellType);
|
|
if (NS_SUCCEEDED(result)) {
|
|
isChrome = nsIDocShellTreeItem::typeChrome == docShellType;
|
|
}
|
|
}
|
|
}
|
|
return isChrome;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::SetDefaultOnRoot(const nsStyleStructID aSID, nsStyleContext* aContext)
|
|
{
|
|
switch (aSID) {
|
|
case eStyleStruct_Font:
|
|
{
|
|
nsStyleFont* fontData = new (mPresContext) nsStyleFont(mPresContext);
|
|
|
|
nscoord minimumFontSize = 0;
|
|
mPresContext->GetCachedIntPref(kPresContext_MinimumFontSize, minimumFontSize);
|
|
if (minimumFontSize > 0 && !IsChrome(mPresContext)) {
|
|
fontData->mFont.size = PR_MAX(fontData->mSize, minimumFontSize);
|
|
}
|
|
else {
|
|
fontData->mFont.size = fontData->mSize;
|
|
}
|
|
aContext->SetStyle(eStyleStruct_Font, fontData);
|
|
return fontData;
|
|
}
|
|
case eStyleStruct_Display:
|
|
{
|
|
nsStyleDisplay* disp = new (mPresContext) nsStyleDisplay();
|
|
aContext->SetStyle(eStyleStruct_Display, disp);
|
|
return disp;
|
|
}
|
|
case eStyleStruct_Visibility:
|
|
{
|
|
nsStyleVisibility* vis = new (mPresContext) nsStyleVisibility(mPresContext);
|
|
aContext->SetStyle(eStyleStruct_Visibility, vis);
|
|
return vis;
|
|
}
|
|
case eStyleStruct_Text:
|
|
{
|
|
nsStyleText* text = new (mPresContext) nsStyleText();
|
|
aContext->SetStyle(eStyleStruct_Text, text);
|
|
return text;
|
|
}
|
|
case eStyleStruct_TextReset:
|
|
{
|
|
nsStyleTextReset* text = new (mPresContext) nsStyleTextReset();
|
|
aContext->SetStyle(eStyleStruct_TextReset, text);
|
|
return text;
|
|
}
|
|
case eStyleStruct_Color:
|
|
{
|
|
nsStyleColor* color = new (mPresContext) nsStyleColor(mPresContext);
|
|
aContext->SetStyle(eStyleStruct_Color, color);
|
|
return color;
|
|
}
|
|
case eStyleStruct_Background:
|
|
{
|
|
nsStyleBackground* bg = new (mPresContext) nsStyleBackground(mPresContext);
|
|
aContext->SetStyle(eStyleStruct_Background, bg);
|
|
return bg;
|
|
}
|
|
case eStyleStruct_Margin:
|
|
{
|
|
nsStyleMargin* margin = new (mPresContext) nsStyleMargin();
|
|
aContext->SetStyle(eStyleStruct_Margin, margin);
|
|
return margin;
|
|
}
|
|
case eStyleStruct_Border:
|
|
{
|
|
nsStyleBorder* border = new (mPresContext) nsStyleBorder(mPresContext);
|
|
aContext->SetStyle(eStyleStruct_Border, border);
|
|
return border;
|
|
}
|
|
case eStyleStruct_Padding:
|
|
{
|
|
nsStylePadding* padding = new (mPresContext) nsStylePadding();
|
|
aContext->SetStyle(eStyleStruct_Padding, padding);
|
|
return padding;
|
|
}
|
|
case eStyleStruct_Outline:
|
|
{
|
|
nsStyleOutline* outline = new (mPresContext) nsStyleOutline(mPresContext);
|
|
aContext->SetStyle(eStyleStruct_Outline, outline);
|
|
return outline;
|
|
}
|
|
case eStyleStruct_List:
|
|
{
|
|
nsStyleList* list = new (mPresContext) nsStyleList();
|
|
aContext->SetStyle(eStyleStruct_List, list);
|
|
return list;
|
|
}
|
|
case eStyleStruct_Position:
|
|
{
|
|
nsStylePosition* pos = new (mPresContext) nsStylePosition();
|
|
aContext->SetStyle(eStyleStruct_Position, pos);
|
|
return pos;
|
|
}
|
|
case eStyleStruct_Table:
|
|
{
|
|
nsStyleTable* table = new (mPresContext) nsStyleTable();
|
|
aContext->SetStyle(eStyleStruct_Table, table);
|
|
return table;
|
|
}
|
|
case eStyleStruct_TableBorder:
|
|
{
|
|
nsStyleTableBorder* table = new (mPresContext) nsStyleTableBorder(mPresContext);
|
|
aContext->SetStyle(eStyleStruct_TableBorder, table);
|
|
return table;
|
|
}
|
|
case eStyleStruct_Content:
|
|
{
|
|
nsStyleContent* content = new (mPresContext) nsStyleContent();
|
|
aContext->SetStyle(eStyleStruct_Content, content);
|
|
return content;
|
|
}
|
|
case eStyleStruct_Quotes:
|
|
{
|
|
nsStyleQuotes* quotes = new (mPresContext) nsStyleQuotes();
|
|
aContext->SetStyle(eStyleStruct_Quotes, quotes);
|
|
return quotes;
|
|
}
|
|
case eStyleStruct_UserInterface:
|
|
{
|
|
nsStyleUserInterface* ui = new (mPresContext) nsStyleUserInterface();
|
|
aContext->SetStyle(eStyleStruct_UserInterface, ui);
|
|
return ui;
|
|
}
|
|
case eStyleStruct_UIReset:
|
|
{
|
|
nsStyleUIReset* ui = new (mPresContext) nsStyleUIReset();
|
|
aContext->SetStyle(eStyleStruct_UIReset, ui);
|
|
return ui;
|
|
}
|
|
|
|
case eStyleStruct_XUL:
|
|
{
|
|
nsStyleXUL* xul = new (mPresContext) nsStyleXUL();
|
|
aContext->SetStyle(eStyleStruct_XUL, xul);
|
|
return xul;
|
|
}
|
|
|
|
#ifdef MOZ_SVG
|
|
case eStyleStruct_SVG:
|
|
{
|
|
nsStyleSVG* svg = new (mPresContext) nsStyleSVG();
|
|
aContext->SetStyle(eStyleStruct_SVG, svg);
|
|
return svg;
|
|
}
|
|
|
|
case eStyleStruct_SVGReset:
|
|
{
|
|
nsStyleSVGReset* svgReset = new (mPresContext) nsStyleSVGReset();
|
|
aContext->SetStyle(eStyleStruct_SVGReset, svgReset);
|
|
return svgReset;
|
|
}
|
|
#endif
|
|
}
|
|
return nsnull;
|
|
}
|
|
|
|
/*
|
|
* This function handles cascading of *-left or *-right box properties
|
|
* against *-start (which is L for LTR and R for RTL) or *-end (which is
|
|
* R for LTR and L for RTL).
|
|
*
|
|
* Cascading these properties correctly is hard because we need to
|
|
* cascade two properties as one, but which two properties depends on a
|
|
* third property ('direction'). We solve this by treating each of
|
|
* these properties (say, 'margin-start') as a shorthand that sets a
|
|
* property containing the value of the property specified
|
|
* ('margin-start-value') and sets a pair of properties
|
|
* ('margin-left-ltr-source' and 'margin-right-rtl-source') saying which
|
|
* of the properties we use. Thus, when we want to compute the value of
|
|
* 'margin-left' when 'direction' is 'ltr', we look at the value of
|
|
* 'margin-left-ltr-source', which tells us whether to use the highest
|
|
* 'margin-left' in the cascade or the highest 'margin-start'.
|
|
*
|
|
* Finally, since we can compute the normal (*-left and *-right)
|
|
* properties in a loop, this function works by assuming the computation
|
|
* for those properties has happened as though we have not implemented
|
|
* the logical properties (*-start and *-end). It is the responsibility
|
|
* of this function to replace the computed values with the values
|
|
* computed from the logical properties when needed.
|
|
*/
|
|
void
|
|
nsRuleNode::AdjustLogicalBoxProp(nsStyleContext* aContext,
|
|
const nsCSSValue& aLTRSource,
|
|
const nsCSSValue& aRTLSource,
|
|
const nsCSSValue& aLTRLogicalValue,
|
|
const nsCSSValue& aRTLLogicalValue,
|
|
const nsStyleSides& aParentRect,
|
|
nsStyleSides& aRect,
|
|
PRUint8 aSide,
|
|
PRInt32 aMask,
|
|
PRBool& aInherited)
|
|
{
|
|
PRBool LTRlogical = aLTRSource.GetUnit() == eCSSUnit_Enumerated &&
|
|
aLTRSource.GetIntValue() == NS_BOXPROP_SOURCE_LOGICAL;
|
|
PRBool RTLlogical = aRTLSource.GetUnit() == eCSSUnit_Enumerated &&
|
|
aRTLSource.GetIntValue() == NS_BOXPROP_SOURCE_LOGICAL;
|
|
if (LTRlogical || RTLlogical) {
|
|
// We can't cache anything on the rule tree if we use any data from
|
|
// the style context, since data cached in the rule tree could be
|
|
// used with a style context with a different value.
|
|
aInherited = PR_TRUE;
|
|
PRUint8 dir = aContext->GetStyleVisibility()->mDirection;
|
|
|
|
nsStyleCoord parentCoord;
|
|
nsStyleCoord coord;
|
|
aParentRect.Get(aSide, parentCoord);
|
|
if (dir == NS_STYLE_DIRECTION_LTR) {
|
|
if (LTRlogical &&
|
|
SetCoord(aLTRLogicalValue, coord, parentCoord, aMask, aContext,
|
|
mPresContext, aInherited))
|
|
aRect.Set(aSide, coord);
|
|
} else {
|
|
if (RTLlogical &&
|
|
SetCoord(aRTLLogicalValue, coord, parentCoord, aMask, aContext,
|
|
mPresContext, aInherited))
|
|
aRect.Set(aSide, coord);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* static */ void
|
|
nsRuleNode::SetFont(nsIPresContext* aPresContext, nsStyleContext* aContext,
|
|
nscoord aMinFontSize, PRBool aUseDocumentFonts,
|
|
PRBool aIsGeneric, const nsRuleDataFont& aFontData,
|
|
const nsFont& aDefaultFont, const nsStyleFont* aParentFont,
|
|
nsStyleFont* aFont, PRBool& aInherited)
|
|
{
|
|
const nsFont* defaultVariableFont =
|
|
aPresContext->GetDefaultFont(kPresContext_DefaultVariableFont_ID);
|
|
|
|
const nsFont* defaultFixedFont =
|
|
aPresContext->GetDefaultFont(kPresContext_DefaultFixedFont_ID);
|
|
|
|
// font-family: string list, enum, inherit
|
|
if (eCSSUnit_String == aFontData.mFamily.GetUnit()) {
|
|
// set the correct font if we are using DocumentFonts OR we are overriding for XUL
|
|
// MJA: bug 31816
|
|
if (aUseDocumentFonts) {
|
|
if (!aIsGeneric) {
|
|
// only bother appending fallback fonts if this isn't a fallback generic font itself
|
|
aFont->mFont.name.Append((PRUnichar)',');
|
|
aFont->mFont.name.Append(aDefaultFont.name);
|
|
}
|
|
}
|
|
else {
|
|
// now set to defaults
|
|
aFont->mFont.name = aDefaultFont.name;
|
|
}
|
|
aFont->mFont.familyNameQuirks =
|
|
(aPresContext->CompatibilityMode() == eCompatibility_NavQuirks &&
|
|
aFontData.mFamilyFromHTML);
|
|
}
|
|
else if (eCSSUnit_Enumerated == aFontData.mFamily.GetUnit()) {
|
|
nsSystemFontID sysID;
|
|
switch (aFontData.mFamily.GetIntValue()) {
|
|
// If you add fonts to this list, you need to also patch the list
|
|
// in CheckFontCallback (also in this file).
|
|
case NS_STYLE_FONT_CAPTION: sysID = eSystemFont_Caption; break; // css2
|
|
case NS_STYLE_FONT_ICON: sysID = eSystemFont_Icon; break;
|
|
case NS_STYLE_FONT_MENU: sysID = eSystemFont_Menu; break;
|
|
case NS_STYLE_FONT_MESSAGE_BOX: sysID = eSystemFont_MessageBox; break;
|
|
case NS_STYLE_FONT_SMALL_CAPTION: sysID = eSystemFont_SmallCaption; break;
|
|
case NS_STYLE_FONT_STATUS_BAR: sysID = eSystemFont_StatusBar; break;
|
|
case NS_STYLE_FONT_WINDOW: sysID = eSystemFont_Window; break; // css3
|
|
case NS_STYLE_FONT_DOCUMENT: sysID = eSystemFont_Document; break;
|
|
case NS_STYLE_FONT_WORKSPACE: sysID = eSystemFont_Workspace; break;
|
|
case NS_STYLE_FONT_DESKTOP: sysID = eSystemFont_Desktop; break;
|
|
case NS_STYLE_FONT_INFO: sysID = eSystemFont_Info; break;
|
|
case NS_STYLE_FONT_DIALOG: sysID = eSystemFont_Dialog; break;
|
|
case NS_STYLE_FONT_BUTTON: sysID = eSystemFont_Button; break;
|
|
case NS_STYLE_FONT_PULL_DOWN_MENU:sysID = eSystemFont_PullDownMenu; break;
|
|
case NS_STYLE_FONT_LIST: sysID = eSystemFont_List; break;
|
|
case NS_STYLE_FONT_FIELD: sysID = eSystemFont_Field; break;
|
|
}
|
|
|
|
// GetSystemFont sets the font face but not necessarily the size
|
|
aFont->mFont.size = defaultVariableFont->size;
|
|
|
|
if (NS_FAILED(aPresContext->DeviceContext()->GetSystemFont(sysID,
|
|
&aFont->mFont))) {
|
|
aFont->mFont.name = defaultVariableFont->name;
|
|
}
|
|
// this becomes our cascading size
|
|
aFont->mSize = aFont->mFont.size =
|
|
nsStyleFont::ZoomText(aPresContext, aFont->mFont.size);
|
|
|
|
aFont->mFont.familyNameQuirks = PR_FALSE;
|
|
|
|
// XXXldb All of this platform-specific stuff should be in the
|
|
// nsIDeviceContext implementations, not here.
|
|
|
|
#ifdef XP_WIN
|
|
//
|
|
// As far as I can tell the system default fonts and sizes for
|
|
// on MS-Windows for Buttons, Listboxes/Comboxes and Text Fields are
|
|
// all pre-determined and cannot be changed by either the control panel
|
|
// or programmtically.
|
|
//
|
|
switch (sysID) {
|
|
// Fields (text fields)
|
|
// Button and Selects (listboxes/comboboxes)
|
|
// We use whatever font is defined by the system. Which it appears
|
|
// (and the assumption is) it is always a proportional font. Then we
|
|
// always use 2 points smaller than what the browser has defined as
|
|
// the default proportional font.
|
|
case eSystemFont_Field:
|
|
case eSystemFont_Button:
|
|
case eSystemFont_List:
|
|
// Assumption: system defined font is proportional
|
|
aFont->mSize = nsStyleFont::ZoomText(aPresContext,
|
|
PR_MAX(defaultVariableFont->size - NSIntPointsToTwips(2), 0));
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
else if (eCSSUnit_Inherit == aFontData.mFamily.GetUnit()) {
|
|
aInherited = PR_TRUE;
|
|
aFont->mFont.name = aParentFont->mFont.name;
|
|
aFont->mFont.familyNameQuirks = aParentFont->mFont.familyNameQuirks;
|
|
}
|
|
else if (eCSSUnit_Initial == aFontData.mFamily.GetUnit()) {
|
|
aFont->mFont.name = aDefaultFont.name;
|
|
aFont->mFont.familyNameQuirks = PR_FALSE;
|
|
}
|
|
|
|
// font-style: enum, normal, inherit
|
|
if (eCSSUnit_Enumerated == aFontData.mStyle.GetUnit()) {
|
|
aFont->mFont.style = aFontData.mStyle.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Normal == aFontData.mStyle.GetUnit()) {
|
|
aFont->mFont.style = NS_STYLE_FONT_STYLE_NORMAL;
|
|
}
|
|
else if (eCSSUnit_Inherit == aFontData.mStyle.GetUnit()) {
|
|
aInherited = PR_TRUE;
|
|
aFont->mFont.style = aParentFont->mFont.style;
|
|
}
|
|
else if (eCSSUnit_Initial == aFontData.mStyle.GetUnit()) {
|
|
aFont->mFont.style = aDefaultFont.style;
|
|
}
|
|
|
|
// font-variant: enum, normal, inherit
|
|
if (eCSSUnit_Enumerated == aFontData.mVariant.GetUnit()) {
|
|
aFont->mFont.variant = aFontData.mVariant.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Normal == aFontData.mVariant.GetUnit()) {
|
|
aFont->mFont.variant = NS_STYLE_FONT_VARIANT_NORMAL;
|
|
}
|
|
else if (eCSSUnit_Inherit == aFontData.mVariant.GetUnit()) {
|
|
aInherited = PR_TRUE;
|
|
aFont->mFont.variant = aParentFont->mFont.variant;
|
|
}
|
|
else if (eCSSUnit_Initial == aFontData.mVariant.GetUnit()) {
|
|
aFont->mFont.variant = aDefaultFont.variant;
|
|
}
|
|
|
|
// font-weight: int, enum, normal, inherit
|
|
if (eCSSUnit_Integer == aFontData.mWeight.GetUnit()) {
|
|
aFont->mFont.weight = aFontData.mWeight.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Enumerated == aFontData.mWeight.GetUnit()) {
|
|
PRInt32 value = aFontData.mWeight.GetIntValue();
|
|
switch (value) {
|
|
case NS_STYLE_FONT_WEIGHT_NORMAL:
|
|
case NS_STYLE_FONT_WEIGHT_BOLD:
|
|
aFont->mFont.weight = value;
|
|
break;
|
|
case NS_STYLE_FONT_WEIGHT_BOLDER:
|
|
case NS_STYLE_FONT_WEIGHT_LIGHTER:
|
|
aInherited = PR_TRUE;
|
|
aFont->mFont.weight = nsStyleUtil::ConstrainFontWeight(aParentFont->mFont.weight + value);
|
|
break;
|
|
}
|
|
}
|
|
else if (eCSSUnit_Normal == aFontData.mWeight.GetUnit()) {
|
|
aFont->mFont.weight = NS_STYLE_FONT_WEIGHT_NORMAL;
|
|
}
|
|
else if (eCSSUnit_Inherit == aFontData.mWeight.GetUnit()) {
|
|
aInherited = PR_TRUE;
|
|
aFont->mFont.weight = aParentFont->mFont.weight;
|
|
}
|
|
else if (eCSSUnit_Initial == aFontData.mWeight.GetUnit()) {
|
|
aFont->mFont.weight = aDefaultFont.weight;
|
|
}
|
|
|
|
// font-size: enum, length, percent, inherit
|
|
PRBool zoom = PR_FALSE;
|
|
if (eCSSUnit_Enumerated == aFontData.mSize.GetUnit()) {
|
|
PRInt32 value = aFontData.mSize.GetIntValue();
|
|
PRInt32 scaler = aPresContext->FontScaler();
|
|
float scaleFactor = nsStyleUtil::GetScalingFactor(scaler);
|
|
|
|
zoom = PR_TRUE;
|
|
if ((NS_STYLE_FONT_SIZE_XXSMALL <= value) &&
|
|
(value <= NS_STYLE_FONT_SIZE_XXLARGE)) {
|
|
aFont->mSize = nsStyleUtil::CalcFontPointSize(value, (PRInt32)aDefaultFont.size, scaleFactor, aPresContext, eFontSize_CSS);
|
|
}
|
|
else if (NS_STYLE_FONT_SIZE_XXXLARGE == value) {
|
|
// <font size="7"> is not specified in CSS, so we don't use eFontSize_CSS.
|
|
aFont->mSize = nsStyleUtil::CalcFontPointSize(value, (PRInt32)aDefaultFont.size, scaleFactor, aPresContext);
|
|
}
|
|
else if (NS_STYLE_FONT_SIZE_LARGER == value ||
|
|
NS_STYLE_FONT_SIZE_SMALLER == value) {
|
|
|
|
aInherited = PR_TRUE;
|
|
|
|
// Un-zoom so we use the tables correctly. We'll then rezoom due
|
|
// to the |zoom = PR_TRUE| above.
|
|
nscoord parentSize =
|
|
nsStyleFont::UnZoomText(aPresContext, aParentFont->mSize);
|
|
|
|
if (NS_STYLE_FONT_SIZE_LARGER == value) {
|
|
aFont->mSize = nsStyleUtil::FindNextLargerFontSize(parentSize, (PRInt32)aDefaultFont.size,
|
|
scaleFactor, aPresContext, eFontSize_CSS);
|
|
NS_ASSERTION(aFont->mSize > parentSize, "FindNextLargerFontSize failed.");
|
|
}
|
|
else {
|
|
aFont->mSize = nsStyleUtil::FindNextSmallerFontSize(parentSize, (PRInt32)aDefaultFont.size,
|
|
scaleFactor, aPresContext, eFontSize_CSS);
|
|
NS_ASSERTION(aFont->mSize < parentSize,
|
|
"FindNextSmallerFontSize failed; this is expected if parentFont size <= 1px");
|
|
}
|
|
} else {
|
|
NS_NOTREACHED("unexpected value");
|
|
}
|
|
}
|
|
else if (aFontData.mSize.IsLengthUnit()) {
|
|
aFont->mSize = CalcLength(aFontData.mSize, &aParentFont->mFont, nsnull, aPresContext, aInherited);
|
|
zoom = aFontData.mSize.IsFixedLengthUnit() ||
|
|
aFontData.mSize.GetUnit() == eCSSUnit_Pixel;
|
|
}
|
|
else if (eCSSUnit_Percent == aFontData.mSize.GetUnit()) {
|
|
aInherited = PR_TRUE;
|
|
aFont->mSize = (nscoord)((float)(aParentFont->mSize) * aFontData.mSize.GetPercentValue());
|
|
zoom = PR_FALSE;
|
|
}
|
|
else if (eCSSUnit_Inherit == aFontData.mSize.GetUnit()) {
|
|
aInherited = PR_TRUE;
|
|
aFont->mSize = aParentFont->mSize;
|
|
zoom = PR_FALSE;
|
|
}
|
|
else if (eCSSUnit_Initial == aFontData.mSize.GetUnit()) {
|
|
aFont->mSize = aDefaultFont.size;
|
|
zoom = PR_TRUE;
|
|
}
|
|
|
|
// We want to zoom the cascaded size so that em-based measurements,
|
|
// line-heights, etc., work.
|
|
if (zoom)
|
|
aFont->mSize = nsStyleFont::ZoomText(aPresContext, aFont->mSize);
|
|
|
|
// enforce the user' specified minimum font-size on the value that we expose
|
|
aFont->mFont.size = PR_MAX(aFont->mSize, aMinFontSize);
|
|
|
|
// font-size-adjust: number, none, inherit
|
|
if (eCSSUnit_Number == aFontData.mSizeAdjust.GetUnit()) {
|
|
aFont->mFont.sizeAdjust = aFontData.mSizeAdjust.GetFloatValue();
|
|
}
|
|
else if (eCSSUnit_None == aFontData.mSizeAdjust.GetUnit()) {
|
|
aFont->mFont.sizeAdjust = 0.0f;
|
|
}
|
|
else if (eCSSUnit_Inherit == aFontData.mSizeAdjust.GetUnit()) {
|
|
aInherited = PR_TRUE;
|
|
aFont->mFont.sizeAdjust = aParentFont->mFont.sizeAdjust;
|
|
}
|
|
else if (eCSSUnit_Initial == aFontData.mSizeAdjust.GetUnit()) {
|
|
aFont->mFont.sizeAdjust = 0.0f;
|
|
}
|
|
}
|
|
|
|
// SetGenericFont:
|
|
// - backtrack to an ancestor with the same generic font name (possibly
|
|
// up to the root where default values come from the presentation context)
|
|
// - re-apply cascading rules from there without caching intermediate values
|
|
/* static */ void
|
|
nsRuleNode::SetGenericFont(nsIPresContext* aPresContext,
|
|
nsStyleContext* aContext,
|
|
const nsRuleDataFont& aFontData,
|
|
PRUint8 aGenericFontID, nscoord aMinFontSize,
|
|
PRBool aUseDocumentFonts, nsStyleFont* aFont)
|
|
{
|
|
// walk up the contexts until a context with the desired generic font
|
|
nsAutoVoidArray contextPath;
|
|
nsStyleContext* higherContext = aContext->GetParent();
|
|
while (higherContext) {
|
|
if (higherContext->GetStyleFont()->mFlags & aGenericFontID) {
|
|
// done walking up the higher contexts
|
|
break;
|
|
}
|
|
contextPath.AppendElement(higherContext);
|
|
higherContext = higherContext->GetParent();
|
|
}
|
|
|
|
// re-apply the cascading rules, starting from the higher context
|
|
|
|
// If we stopped earlier because we reached the root of the style tree,
|
|
// we will start with the default generic font from the presentation
|
|
// context. Otherwise we start with the higher context.
|
|
const nsFont* defaultFont = aPresContext->GetDefaultFont(aGenericFontID);
|
|
nsStyleFont parentFont(*defaultFont);
|
|
parentFont.mSize = parentFont.mFont.size
|
|
= nsStyleFont::ZoomText(aPresContext, parentFont.mSize);
|
|
if (higherContext) {
|
|
const nsStyleFont* tmpFont = higherContext->GetStyleFont();
|
|
parentFont.mFlags = tmpFont->mFlags;
|
|
parentFont.mFont = tmpFont->mFont;
|
|
parentFont.mSize = tmpFont->mSize;
|
|
}
|
|
aFont->mFlags = parentFont.mFlags;
|
|
aFont->mFont = parentFont.mFont;
|
|
aFont->mSize = parentFont.mSize;
|
|
|
|
PRBool dummy;
|
|
PRUint32 fontBit = nsCachedStyleData::GetBitForSID(eStyleStruct_Font);
|
|
|
|
for (PRInt32 i = contextPath.Count() - 1; i >= 0; --i) {
|
|
nsStyleContext* context = (nsStyleContext*)contextPath[i];
|
|
nsRuleDataFont fontData; // Declare a struct with null CSS values.
|
|
nsRuleData ruleData(eStyleStruct_Font, aPresContext, context);
|
|
ruleData.mFontData = &fontData;
|
|
|
|
// Trimmed down version of ::WalkRuleTree() to re-apply the style rules
|
|
for (nsRuleNode* ruleNode = context->GetRuleNode(); ruleNode;
|
|
ruleNode = ruleNode->GetParent()) {
|
|
if (ruleNode->mNoneBits & fontBit)
|
|
// no more font rules on this branch, get out
|
|
break;
|
|
|
|
nsIStyleRule *rule = ruleNode->GetRule();
|
|
if (rule)
|
|
rule->MapRuleInfoInto(&ruleData);
|
|
}
|
|
|
|
// Compute the delta from the information that the rules specified
|
|
fontData.mFamily.Reset(); // avoid unnecessary operations in SetFont()
|
|
|
|
nsRuleNode::SetFont(aPresContext, context, aMinFontSize,
|
|
aUseDocumentFonts, PR_TRUE, fontData, *defaultFont,
|
|
&parentFont, aFont, dummy);
|
|
|
|
// XXX Not sure if we need to do this here
|
|
// If we have a post-resolve callback, handle that now.
|
|
if (ruleData.mPostResolveCallback)
|
|
(ruleData.mPostResolveCallback)((nsStyleStruct*)aFont, &ruleData);
|
|
|
|
parentFont.mFlags = aFont->mFlags;
|
|
parentFont.mFont = aFont->mFont;
|
|
parentFont.mSize = aFont->mSize;
|
|
}
|
|
|
|
// Finish off by applying our own rules. In this case, aFontData
|
|
// already has the current cascading information that we want. We
|
|
// can just compute the delta from the parent.
|
|
nsRuleNode::SetFont(aPresContext, aContext, aMinFontSize,
|
|
aUseDocumentFonts, PR_TRUE, aFontData, *defaultFont,
|
|
&parentFont, aFont, dummy);
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeFontData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataFont& fontData = NS_STATIC_CAST(const nsRuleDataFont&, aData);
|
|
nsStyleFont* font = nsnull;
|
|
const nsStyleFont* parentFont = nsnull;
|
|
PRBool inherited = aInherited;
|
|
|
|
// This optimization is a little weaker here since 'em', etc., for
|
|
// 'font-size' require inheritance.
|
|
if (parentContext &&
|
|
(aRuleDetail != eRuleFullReset ||
|
|
(fontData.mSize.IsRelativeLengthUnit() &&
|
|
fontData.mSize.GetUnit() != eCSSUnit_Pixel) ||
|
|
fontData.mSize.GetUnit() == eCSSUnit_Percent))
|
|
parentFont = parentContext->GetStyleFont();
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
font = new (mPresContext) nsStyleFont(*NS_STATIC_CAST(nsStyleFont*, aStartStruct));
|
|
else {
|
|
// XXXldb What about eRuleFullInherited? Which path is faster?
|
|
if (aRuleDetail != eRuleFullMixed && aRuleDetail != eRuleFullReset) {
|
|
// No question. We will have to inherit. Go ahead and init
|
|
// with inherited vals from parent.
|
|
inherited = PR_TRUE;
|
|
if (parentFont)
|
|
font = new (mPresContext) nsStyleFont(*parentFont);
|
|
}
|
|
}
|
|
|
|
if (!font) {
|
|
font = new (mPresContext) nsStyleFont(mPresContext);
|
|
}
|
|
if (!parentFont)
|
|
parentFont = font;
|
|
|
|
// See if there is a minimum font-size constraint to honor
|
|
nscoord minimumFontSize = 0; // unconstrained by default
|
|
mPresContext->GetCachedIntPref(kPresContext_MinimumFontSize, minimumFontSize);
|
|
if (minimumFontSize < 0)
|
|
minimumFontSize = 0;
|
|
|
|
PRBool useDocumentFonts = PR_TRUE;
|
|
|
|
// Figure out if we are a generic font
|
|
PRUint8 generic = kGenericFont_NONE;
|
|
if (eCSSUnit_String == fontData.mFamily.GetUnit()) {
|
|
fontData.mFamily.GetStringValue(font->mFont.name);
|
|
nsFont::GetGenericID(font->mFont.name, &generic);
|
|
|
|
// MJA: bug 31816
|
|
// if we are not using document fonts, but this is a XUL document,
|
|
// then we use the document fonts anyway
|
|
useDocumentFonts =
|
|
mPresContext->GetCachedBoolPref(kPresContext_UseDocumentFonts);
|
|
if (!useDocumentFonts) {
|
|
// check if the prefs have been disabled for this shell
|
|
// - if prefs are disabled then we use the document fonts anyway (yet another override)
|
|
PRBool prefsEnabled = PR_TRUE;
|
|
nsIPresShell *shell = mPresContext->GetPresShell();
|
|
if (shell)
|
|
shell->ArePrefStyleRulesEnabled(prefsEnabled);
|
|
if (!prefsEnabled)
|
|
useDocumentFonts = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
// See if we are in the chrome
|
|
// We only need to know this to determine if we have to use the
|
|
// document fonts (overriding the useDocumentFonts flag), or to
|
|
// determine if we have to override the minimum font-size constraint.
|
|
if ((!useDocumentFonts || minimumFontSize > 0) && IsChrome(mPresContext)) {
|
|
useDocumentFonts = PR_TRUE;
|
|
minimumFontSize = 0;
|
|
}
|
|
|
|
// If we don't have to use document fonts, then we are only entitled
|
|
// to use the user's default variable-width font and fixed-width font
|
|
if (!useDocumentFonts) {
|
|
if (generic != kGenericFont_moz_fixed)
|
|
generic = kGenericFont_NONE;
|
|
}
|
|
|
|
// Now compute our font struct
|
|
if (generic == kGenericFont_NONE) {
|
|
// continue the normal processing
|
|
// our default font is the most recent generic font
|
|
const nsFont* defaultFont =
|
|
mPresContext->GetDefaultFont(parentFont->mFlags & NS_STYLE_FONT_FACE_MASK);
|
|
|
|
nsRuleNode::SetFont(mPresContext, aContext, minimumFontSize,
|
|
useDocumentFonts, PR_FALSE,
|
|
fontData, *defaultFont, parentFont, font, inherited);
|
|
}
|
|
else {
|
|
// re-calculate the font as a generic font
|
|
inherited = PR_TRUE;
|
|
nsRuleNode::SetGenericFont(mPresContext, aContext, fontData, generic,
|
|
minimumFontSize, useDocumentFonts, font);
|
|
}
|
|
// Set our generic font's bit to inform our descendants
|
|
font->mFlags &= ~NS_STYLE_FONT_FACE_MASK;
|
|
font->mFlags |= generic;
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Font, font);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mInheritedData)
|
|
aHighestNode->mStyleData.mInheritedData = new (mPresContext) nsInheritedStyleData;
|
|
aHighestNode->mStyleData.mInheritedData->mFontData = font;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Font), aHighestNode);
|
|
}
|
|
|
|
return font;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeTextData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataText& textData = NS_STATIC_CAST(const nsRuleDataText&, aData);
|
|
nsStyleText* text = nsnull;
|
|
const nsStyleText* parentText = nsnull;
|
|
PRBool inherited = aInherited;
|
|
|
|
if (parentContext && aRuleDetail != eRuleFullReset)
|
|
parentText = parentContext->GetStyleText();
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
text = new (mPresContext) nsStyleText(*NS_STATIC_CAST(nsStyleText*, aStartStruct));
|
|
else {
|
|
// XXXldb What about eRuleFullInherited? Which path is faster?
|
|
if (aRuleDetail != eRuleFullMixed && aRuleDetail != eRuleFullReset) {
|
|
// No question. We will have to inherit. Go ahead and init
|
|
// with inherited vals from parent.
|
|
inherited = PR_TRUE;
|
|
if (parentText)
|
|
text = new (mPresContext) nsStyleText(*parentText);
|
|
}
|
|
}
|
|
|
|
if (!text)
|
|
text = new (mPresContext) nsStyleText();
|
|
if (!parentText)
|
|
parentText = text;
|
|
|
|
// letter-spacing: normal, length, inherit
|
|
SetCoord(textData.mLetterSpacing, text->mLetterSpacing, parentText->mLetterSpacing,
|
|
SETCOORD_LH | SETCOORD_NORMAL, aContext, mPresContext, inherited);
|
|
|
|
// line-height: normal, number, length, percent, inherit
|
|
if (eCSSUnit_Percent == textData.mLineHeight.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
// Use |mFont.size| to pick up minimum font size.
|
|
text->mLineHeight.SetCoordValue(
|
|
nscoord(float(aContext->GetStyleFont()->mFont.size) *
|
|
textData.mLineHeight.GetPercentValue()));
|
|
} else {
|
|
SetCoord(textData.mLineHeight, text->mLineHeight, parentText->mLineHeight,
|
|
SETCOORD_LH | SETCOORD_FACTOR | SETCOORD_NORMAL,
|
|
aContext, mPresContext, inherited);
|
|
if (textData.mLineHeight.IsFixedLengthUnit() ||
|
|
textData.mLineHeight.GetUnit() == eCSSUnit_Pixel) {
|
|
nscoord lh = nsStyleFont::ZoomText(mPresContext,
|
|
text->mLineHeight.GetCoordValue());
|
|
nscoord minimumFontSize = 0;
|
|
mPresContext->GetCachedIntPref(kPresContext_MinimumFontSize,
|
|
minimumFontSize);
|
|
if (minimumFontSize > 0 && !IsChrome(mPresContext)) {
|
|
// If we applied a minimum font size, scale the line height by
|
|
// the same ratio. (If we *might* have applied a minimum font
|
|
// size, we can't cache in the rule tree.)
|
|
inherited = PR_TRUE;
|
|
const nsStyleFont *font = aContext->GetStyleFont();
|
|
if (font->mSize != 0) {
|
|
lh = float(lh) * float(font->mFont.size) / float(font->mSize);
|
|
} else {
|
|
lh = minimumFontSize;
|
|
}
|
|
}
|
|
text->mLineHeight.SetCoordValue(lh);
|
|
}
|
|
}
|
|
|
|
|
|
// text-align: enum, string, inherit
|
|
if (eCSSUnit_Enumerated == textData.mTextAlign.GetUnit()) {
|
|
text->mTextAlign = textData.mTextAlign.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_String == textData.mTextAlign.GetUnit()) {
|
|
NS_NOTYETIMPLEMENTED("align string");
|
|
}
|
|
else if (eCSSUnit_Inherit == textData.mTextAlign.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
text->mTextAlign = parentText->mTextAlign;
|
|
}
|
|
else if (eCSSUnit_Initial == textData.mTextAlign.GetUnit())
|
|
text->mTextAlign = NS_STYLE_TEXT_ALIGN_DEFAULT;
|
|
|
|
// text-indent: length, percent, inherit
|
|
SetCoord(textData.mTextIndent, text->mTextIndent, parentText->mTextIndent,
|
|
SETCOORD_LPH, aContext, mPresContext, inherited);
|
|
|
|
// text-transform: enum, none, inherit
|
|
if (eCSSUnit_Enumerated == textData.mTextTransform.GetUnit()) {
|
|
text->mTextTransform = textData.mTextTransform.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_None == textData.mTextTransform.GetUnit()) {
|
|
text->mTextTransform = NS_STYLE_TEXT_TRANSFORM_NONE;
|
|
}
|
|
else if (eCSSUnit_Inherit == textData.mTextTransform.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
text->mTextTransform = parentText->mTextTransform;
|
|
}
|
|
|
|
// white-space: enum, normal, inherit
|
|
if (eCSSUnit_Enumerated == textData.mWhiteSpace.GetUnit()) {
|
|
text->mWhiteSpace = textData.mWhiteSpace.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Normal == textData.mWhiteSpace.GetUnit()) {
|
|
text->mWhiteSpace = NS_STYLE_WHITESPACE_NORMAL;
|
|
}
|
|
else if (eCSSUnit_Inherit == textData.mWhiteSpace.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
text->mWhiteSpace = parentText->mWhiteSpace;
|
|
}
|
|
|
|
// word-spacing: normal, length, inherit
|
|
SetCoord(textData.mWordSpacing, text->mWordSpacing, parentText->mWordSpacing,
|
|
SETCOORD_LH | SETCOORD_NORMAL, aContext, mPresContext, inherited);
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Text, text);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mInheritedData)
|
|
aHighestNode->mStyleData.mInheritedData = new (mPresContext) nsInheritedStyleData;
|
|
aHighestNode->mStyleData.mInheritedData->mTextData = text;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Text), aHighestNode);
|
|
}
|
|
|
|
return text;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeTextResetData(nsStyleStruct* aStartData,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataText& textData = NS_STATIC_CAST(const nsRuleDataText&, aData);
|
|
nsStyleTextReset* text;
|
|
if (aStartData)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
text = new (mPresContext) nsStyleTextReset(*NS_STATIC_CAST(nsStyleTextReset*, aStartData));
|
|
else
|
|
text = new (mPresContext) nsStyleTextReset();
|
|
const nsStyleTextReset* parentText = text;
|
|
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentText = parentContext->GetStyleTextReset();
|
|
PRBool inherited = aInherited;
|
|
|
|
// vertical-align: enum, length, percent, inherit
|
|
SetCoord(textData.mVerticalAlign, text->mVerticalAlign, parentText->mVerticalAlign,
|
|
SETCOORD_LPH | SETCOORD_ENUMERATED, aContext, mPresContext, inherited);
|
|
|
|
// text-decoration: none, enum (bit field), inherit
|
|
if (eCSSUnit_Enumerated == textData.mDecoration.GetUnit()) {
|
|
PRInt32 td = textData.mDecoration.GetIntValue();
|
|
text->mTextDecoration = td;
|
|
if (td & NS_STYLE_TEXT_DECORATION_PREF_ANCHORS) {
|
|
PRBool underlineLinks =
|
|
mPresContext->GetCachedBoolPref(kPresContext_UnderlineLinks);
|
|
if (underlineLinks) {
|
|
text->mTextDecoration |= NS_STYLE_TEXT_DECORATION_UNDERLINE;
|
|
}
|
|
else {
|
|
text->mTextDecoration &= ~NS_STYLE_TEXT_DECORATION_UNDERLINE;
|
|
}
|
|
}
|
|
}
|
|
else if (eCSSUnit_None == textData.mDecoration.GetUnit()) {
|
|
text->mTextDecoration = NS_STYLE_TEXT_DECORATION_NONE;
|
|
}
|
|
else if (eCSSUnit_Inherit == textData.mDecoration.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
text->mTextDecoration = parentText->mTextDecoration;
|
|
}
|
|
|
|
// unicode-bidi: enum, normal, inherit
|
|
if (eCSSUnit_Normal == textData.mUnicodeBidi.GetUnit() ) {
|
|
text->mUnicodeBidi = NS_STYLE_UNICODE_BIDI_NORMAL;
|
|
}
|
|
else if (eCSSUnit_Enumerated == textData.mUnicodeBidi.GetUnit() ) {
|
|
text->mUnicodeBidi = textData.mUnicodeBidi.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == textData.mUnicodeBidi.GetUnit() ) {
|
|
inherited = PR_TRUE;
|
|
text->mUnicodeBidi = parentText->mUnicodeBidi;
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_TextReset, text);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mTextResetData = text;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(TextReset), aHighestNode);
|
|
}
|
|
|
|
return text;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeUserInterfaceData(nsStyleStruct* aStartData,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail,
|
|
PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataUserInterface& uiData = NS_STATIC_CAST(const nsRuleDataUserInterface&, aData);
|
|
nsStyleUserInterface* ui = nsnull;
|
|
const nsStyleUserInterface* parentUI = nsnull;
|
|
PRBool inherited = aInherited;
|
|
|
|
if (parentContext && aRuleDetail != eRuleFullReset)
|
|
parentUI = parentContext->GetStyleUserInterface();
|
|
if (aStartData)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
ui = new (mPresContext) nsStyleUserInterface(*NS_STATIC_CAST(nsStyleUserInterface*, aStartData));
|
|
else {
|
|
// XXXldb What about eRuleFullInherited? Which path is faster?
|
|
if (aRuleDetail != eRuleFullMixed && aRuleDetail != eRuleFullReset) {
|
|
// No question. We will have to inherit. Go ahead and init
|
|
// with inherited vals from parent.
|
|
inherited = PR_TRUE;
|
|
if (parentUI)
|
|
ui = new (mPresContext) nsStyleUserInterface(*parentUI);
|
|
}
|
|
}
|
|
|
|
if (!ui)
|
|
ui = new (mPresContext) nsStyleUserInterface();
|
|
if (!parentUI)
|
|
parentUI = ui;
|
|
|
|
// cursor: enum, auto, url, inherit
|
|
nsCSSValueList* list = uiData.mCursor;
|
|
if (nsnull != list) {
|
|
if (eCSSUnit_Inherit == list->mValue.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
ui->mCursor = parentUI->mCursor;
|
|
}
|
|
else {
|
|
// Since we don't support URL values, just skip them.
|
|
// The parser will never create a list that is *all* URL values --
|
|
// that's invalid.
|
|
while (list->mValue.GetUnit() == eCSSUnit_URL)
|
|
list = list->mNext;
|
|
|
|
if (eCSSUnit_Enumerated == list->mValue.GetUnit()) {
|
|
ui->mCursor = list->mValue.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Auto == list->mValue.GetUnit()) {
|
|
ui->mCursor = NS_STYLE_CURSOR_AUTO;
|
|
}
|
|
}
|
|
}
|
|
|
|
// user-input: auto, none, enum, inherit
|
|
if (eCSSUnit_Enumerated == uiData.mUserInput.GetUnit()) {
|
|
ui->mUserInput = uiData.mUserInput.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Auto == uiData.mUserInput.GetUnit()) {
|
|
ui->mUserInput = NS_STYLE_USER_INPUT_AUTO;
|
|
}
|
|
else if (eCSSUnit_None == uiData.mUserInput.GetUnit()) {
|
|
ui->mUserInput = NS_STYLE_USER_INPUT_NONE;
|
|
}
|
|
else if (eCSSUnit_Inherit == uiData.mUserInput.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
ui->mUserInput = parentUI->mUserInput;
|
|
}
|
|
|
|
// user-modify: enum, inherit
|
|
if (eCSSUnit_Enumerated == uiData.mUserModify.GetUnit()) {
|
|
ui->mUserModify = uiData.mUserModify.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == uiData.mUserModify.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
ui->mUserModify = parentUI->mUserModify;
|
|
}
|
|
|
|
// user-focus: none, normal, enum, inherit
|
|
if (eCSSUnit_Enumerated == uiData.mUserFocus.GetUnit()) {
|
|
ui->mUserFocus = uiData.mUserFocus.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_None == uiData.mUserFocus.GetUnit()) {
|
|
ui->mUserFocus = NS_STYLE_USER_FOCUS_NONE;
|
|
}
|
|
else if (eCSSUnit_Normal == uiData.mUserFocus.GetUnit()) {
|
|
ui->mUserFocus = NS_STYLE_USER_FOCUS_NORMAL;
|
|
}
|
|
else if (eCSSUnit_Inherit == uiData.mUserFocus.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
ui->mUserFocus = parentUI->mUserFocus;
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_UserInterface, ui);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mInheritedData)
|
|
aHighestNode->mStyleData.mInheritedData = new (mPresContext) nsInheritedStyleData;
|
|
aHighestNode->mStyleData.mInheritedData->mUserInterfaceData = ui;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(UserInterface), aHighestNode);
|
|
}
|
|
|
|
return ui;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeUIResetData(nsStyleStruct* aStartData,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataUserInterface& uiData = NS_STATIC_CAST(const nsRuleDataUserInterface&, aData);
|
|
nsStyleUIReset* ui;
|
|
if (aStartData)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
ui = new (mPresContext) nsStyleUIReset(*NS_STATIC_CAST(nsStyleUIReset*, aStartData));
|
|
else
|
|
ui = new (mPresContext) nsStyleUIReset();
|
|
const nsStyleUIReset* parentUI = ui;
|
|
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentUI = parentContext->GetStyleUIReset();
|
|
PRBool inherited = aInherited;
|
|
|
|
// user-select: none, enum, inherit
|
|
if (eCSSUnit_Enumerated == uiData.mUserSelect.GetUnit()) {
|
|
ui->mUserSelect = uiData.mUserSelect.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_None == uiData.mUserSelect.GetUnit()) {
|
|
ui->mUserSelect = NS_STYLE_USER_SELECT_NONE;
|
|
}
|
|
else if (eCSSUnit_Inherit == uiData.mUserSelect.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
ui->mUserSelect = parentUI->mUserSelect;
|
|
}
|
|
|
|
// key-equivalent: none, enum XXX, inherit
|
|
nsCSSValueList* keyEquiv = uiData.mKeyEquivalent;
|
|
if (keyEquiv) {
|
|
// XXX need to deal with multiple values
|
|
if (eCSSUnit_Enumerated == keyEquiv->mValue.GetUnit()) {
|
|
ui->mKeyEquivalent = PRUnichar(0); // XXX To be implemented
|
|
}
|
|
else if (eCSSUnit_None == keyEquiv->mValue.GetUnit()) {
|
|
ui->mKeyEquivalent = PRUnichar(0);
|
|
}
|
|
else if (eCSSUnit_Inherit == keyEquiv->mValue.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
ui->mKeyEquivalent = parentUI->mKeyEquivalent;
|
|
}
|
|
}
|
|
// resizer: auto, none, enum, inherit
|
|
if (eCSSUnit_Enumerated == uiData.mResizer.GetUnit()) {
|
|
ui->mResizer = uiData.mResizer.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Auto == uiData.mResizer.GetUnit()) {
|
|
ui->mResizer = NS_STYLE_RESIZER_AUTO;
|
|
}
|
|
else if (eCSSUnit_None == uiData.mResizer.GetUnit()) {
|
|
ui->mResizer = NS_STYLE_RESIZER_NONE;
|
|
}
|
|
else if (eCSSUnit_Inherit == uiData.mResizer.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
ui->mResizer = parentUI->mResizer;
|
|
}
|
|
|
|
// force-broken-image-icons: integer
|
|
if (eCSSUnit_Integer == uiData.mForceBrokenImageIcon.GetUnit()) {
|
|
ui->mForceBrokenImageIcon = uiData.mForceBrokenImageIcon.GetIntValue();
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_UIReset, ui);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mUIResetData = ui;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(UIReset), aHighestNode);
|
|
}
|
|
|
|
return ui;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeDisplayData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataDisplay& displayData = NS_STATIC_CAST(const nsRuleDataDisplay&, aData);
|
|
nsStyleDisplay* display;
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
display = new (mPresContext) nsStyleDisplay(*NS_STATIC_CAST(nsStyleDisplay*, aStartStruct));
|
|
else
|
|
display = new (mPresContext) nsStyleDisplay();
|
|
const nsStyleDisplay* parentDisplay = display;
|
|
|
|
nsIAtom* pseudoTag = aContext->GetPseudoType();
|
|
PRBool generatedContent = (pseudoTag == nsCSSPseudoElements::before ||
|
|
pseudoTag == nsCSSPseudoElements::after);
|
|
|
|
if (parentContext &&
|
|
((aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone) ||
|
|
generatedContent))
|
|
parentDisplay = parentContext->GetStyleDisplay();
|
|
PRBool inherited = aInherited;
|
|
|
|
// opacity: factor, inherit
|
|
if (eCSSUnit_Number == displayData.mOpacity.GetUnit()) {
|
|
display->mOpacity = displayData.mOpacity.GetFloatValue();
|
|
if (display->mOpacity > 1.0f)
|
|
display->mOpacity = 1.0f;
|
|
if (display->mOpacity < 0.0f)
|
|
display->mOpacity = 0.0f;
|
|
}
|
|
else if (eCSSUnit_Inherit == displayData.mOpacity.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
display->mOpacity = parentDisplay->mOpacity;
|
|
}
|
|
|
|
// display: enum, none, inherit
|
|
if (eCSSUnit_Enumerated == displayData.mDisplay.GetUnit()) {
|
|
display->mDisplay = displayData.mDisplay.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_None == displayData.mDisplay.GetUnit()) {
|
|
display->mDisplay = NS_STYLE_DISPLAY_NONE;
|
|
}
|
|
else if (eCSSUnit_Inherit == displayData.mDisplay.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
display->mDisplay = parentDisplay->mDisplay;
|
|
}
|
|
|
|
// appearance: enum, none, inherit
|
|
if (eCSSUnit_Enumerated == displayData.mAppearance.GetUnit()) {
|
|
display->mAppearance = displayData.mAppearance.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_None == displayData.mAppearance.GetUnit()) {
|
|
display->mAppearance = NS_THEME_NONE;
|
|
}
|
|
else if (eCSSUnit_Inherit == displayData.mAppearance.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
display->mAppearance = parentDisplay->mAppearance;
|
|
}
|
|
|
|
// binding: url, none, inherit
|
|
if (eCSSUnit_URL == displayData.mBinding.GetUnit()) {
|
|
display->mBinding = displayData.mBinding.GetURLValue();
|
|
}
|
|
else if (eCSSUnit_None == displayData.mBinding.GetUnit()) {
|
|
display->mBinding = nsnull;
|
|
}
|
|
else if (eCSSUnit_Inherit == displayData.mBinding.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
display->mBinding = parentDisplay->mBinding;
|
|
}
|
|
|
|
// position: enum, inherit
|
|
if (eCSSUnit_Enumerated == displayData.mPosition.GetUnit()) {
|
|
display->mPosition = displayData.mPosition.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == displayData.mPosition.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
display->mPosition = parentDisplay->mPosition;
|
|
}
|
|
|
|
// clear: enum, none, inherit
|
|
if (eCSSUnit_Enumerated == displayData.mClear.GetUnit()) {
|
|
display->mBreakType = displayData.mClear.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_None == displayData.mClear.GetUnit()) {
|
|
display->mBreakType = NS_STYLE_CLEAR_NONE;
|
|
}
|
|
else if (eCSSUnit_Inherit == displayData.mClear.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
display->mBreakType = parentDisplay->mBreakType;
|
|
}
|
|
|
|
// temp fix for bug 24000
|
|
if (eCSSUnit_Enumerated == displayData.mBreakBefore.GetUnit()) {
|
|
display->mBreakBefore = (NS_STYLE_PAGE_BREAK_ALWAYS == displayData.mBreakBefore.GetIntValue());
|
|
}
|
|
if (eCSSUnit_Enumerated == displayData.mBreakAfter.GetUnit()) {
|
|
display->mBreakAfter = (NS_STYLE_PAGE_BREAK_ALWAYS == displayData.mBreakAfter.GetIntValue());
|
|
}
|
|
// end temp fix
|
|
|
|
// float: enum, none, inherit
|
|
if (eCSSUnit_Enumerated == displayData.mFloat.GetUnit()) {
|
|
display->mFloats = displayData.mFloat.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_None == displayData.mFloat.GetUnit()) {
|
|
display->mFloats = NS_STYLE_FLOAT_NONE;
|
|
}
|
|
else if (eCSSUnit_Inherit == displayData.mFloat.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
display->mFloats = parentDisplay->mFloats;
|
|
}
|
|
|
|
// overflow: enum, auto, inherit
|
|
if (eCSSUnit_Enumerated == displayData.mOverflow.GetUnit()) {
|
|
display->mOverflow = displayData.mOverflow.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Auto == displayData.mOverflow.GetUnit()) {
|
|
display->mOverflow = NS_STYLE_OVERFLOW_AUTO;
|
|
}
|
|
else if (eCSSUnit_Inherit == displayData.mOverflow.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
display->mOverflow = parentDisplay->mOverflow;
|
|
}
|
|
|
|
// clip property: length, auto, inherit
|
|
if (eCSSUnit_Inherit == displayData.mClip.mTop.GetUnit()) { // if one is inherit, they all are
|
|
inherited = PR_TRUE;
|
|
display->mClipFlags = parentDisplay->mClipFlags;
|
|
display->mClip = parentDisplay->mClip;
|
|
}
|
|
else {
|
|
PRBool fullAuto = PR_TRUE;
|
|
|
|
display->mClipFlags = 0; // clear it
|
|
|
|
if (eCSSUnit_Auto == displayData.mClip.mTop.GetUnit()) {
|
|
display->mClip.y = 0;
|
|
display->mClipFlags |= NS_STYLE_CLIP_TOP_AUTO;
|
|
}
|
|
else if (displayData.mClip.mTop.IsLengthUnit()) {
|
|
display->mClip.y = CalcLength(displayData.mClip.mTop, nsnull, aContext, mPresContext, inherited);
|
|
fullAuto = PR_FALSE;
|
|
}
|
|
if (eCSSUnit_Auto == displayData.mClip.mBottom.GetUnit()) {
|
|
// Setting to NS_MAXSIZE for the 'auto' case ensures that
|
|
// the clip rect is nonempty. It is important that mClip be
|
|
// nonempty if the actual clip rect could be nonempty.
|
|
display->mClip.height = NS_MAXSIZE;
|
|
display->mClipFlags |= NS_STYLE_CLIP_BOTTOM_AUTO;
|
|
}
|
|
else if (displayData.mClip.mBottom.IsLengthUnit()) {
|
|
display->mClip.height = CalcLength(displayData.mClip.mBottom, nsnull, aContext, mPresContext, inherited) -
|
|
display->mClip.y;
|
|
fullAuto = PR_FALSE;
|
|
}
|
|
if (eCSSUnit_Auto == displayData.mClip.mLeft.GetUnit()) {
|
|
display->mClip.x = 0;
|
|
display->mClipFlags |= NS_STYLE_CLIP_LEFT_AUTO;
|
|
}
|
|
else if (displayData.mClip.mLeft.IsLengthUnit()) {
|
|
display->mClip.x = CalcLength(displayData.mClip.mLeft, nsnull, aContext, mPresContext, inherited);
|
|
fullAuto = PR_FALSE;
|
|
}
|
|
if (eCSSUnit_Auto == displayData.mClip.mRight.GetUnit()) {
|
|
// Setting to NS_MAXSIZE for the 'auto' case ensures that
|
|
// the clip rect is nonempty. It is important that mClip be
|
|
// nonempty if the actual clip rect could be nonempty.
|
|
display->mClip.width = NS_MAXSIZE;
|
|
display->mClipFlags |= NS_STYLE_CLIP_RIGHT_AUTO;
|
|
}
|
|
else if (displayData.mClip.mRight.IsLengthUnit()) {
|
|
display->mClip.width = CalcLength(displayData.mClip.mRight, nsnull, aContext, mPresContext, inherited) -
|
|
display->mClip.x;
|
|
fullAuto = PR_FALSE;
|
|
}
|
|
display->mClipFlags &= ~NS_STYLE_CLIP_TYPE_MASK;
|
|
if (fullAuto) {
|
|
display->mClipFlags |= NS_STYLE_CLIP_AUTO;
|
|
}
|
|
else {
|
|
display->mClipFlags |= NS_STYLE_CLIP_RECT;
|
|
}
|
|
}
|
|
|
|
// CSS2 specified fixups:
|
|
if (generatedContent) {
|
|
// According to CSS2 section 12.1, :before and :after
|
|
// pseudo-elements must not be positioned or floated (CSS2 12.1) and
|
|
// must be limited to certain display types (depending on the
|
|
// display type of the element to which they are attached).
|
|
|
|
if (display->mPosition != NS_STYLE_POSITION_STATIC)
|
|
display->mPosition = NS_STYLE_POSITION_STATIC;
|
|
if (display->mFloats != NS_STYLE_FLOAT_NONE)
|
|
display->mFloats = NS_STYLE_FLOAT_NONE;
|
|
|
|
PRUint8 displayValue = display->mDisplay;
|
|
if (displayValue != NS_STYLE_DISPLAY_NONE &&
|
|
displayValue != NS_STYLE_DISPLAY_INLINE) {
|
|
inherited = PR_TRUE;
|
|
if (parentDisplay->IsBlockLevel()) {
|
|
// If the subject of the selector is a block-level element,
|
|
// allowed values are 'none', 'inline', 'block', and 'marker'.
|
|
// If the value of the 'display' has any other value, the
|
|
// pseudo-element will behave as if the value were 'block'.
|
|
if (displayValue != NS_STYLE_DISPLAY_BLOCK &&
|
|
displayValue != NS_STYLE_DISPLAY_MARKER)
|
|
display->mDisplay = NS_STYLE_DISPLAY_BLOCK;
|
|
} else {
|
|
// If the subject of the selector is an inline-level element,
|
|
// allowed values are 'none' and 'inline'. If the value of the
|
|
// 'display' has any other value, the pseudo-element will behave
|
|
// as if the value were 'inline'.
|
|
display->mDisplay = NS_STYLE_DISPLAY_INLINE;
|
|
}
|
|
}
|
|
}
|
|
else if (display->mDisplay != NS_STYLE_DISPLAY_NONE) {
|
|
// CSS2 9.7 specifies display type corrections dealing with 'float'
|
|
// and 'position'. Since generated content can't be floated or
|
|
// positioned, we can deal with it here.
|
|
|
|
// 1) if float is not none, and display is not none, then we must
|
|
// set display to block
|
|
// XXX - there are problems with following the spec here: what we
|
|
// will do instead of following the letter of the spec is
|
|
// to make sure that floated elements are some kind of
|
|
// block, not strictly 'block' - see EnsureBlockDisplay
|
|
// method
|
|
if (display->mFloats != NS_STYLE_FLOAT_NONE)
|
|
EnsureBlockDisplay(display->mDisplay);
|
|
else if (nsCSSPseudoElements::firstLetter == pseudoTag)
|
|
// a non-floating first-letter must be inline
|
|
// XXX this fix can go away once bug 103189 is fixed correctly
|
|
display->mDisplay = NS_STYLE_DISPLAY_INLINE;
|
|
|
|
// 2) if position is 'absolute' or 'fixed' then display must be
|
|
// 'block and float must be 'none'
|
|
// XXX - see note for fixup 1) above...
|
|
if (display->IsAbsolutelyPositioned()) {
|
|
// Backup original display value for calculation of a hypothetical
|
|
// box (CSS2 10.6.4/10.6.5).
|
|
// See nsHTMLReflowState::CalculateHypotheticalBox
|
|
display->mOriginalDisplay = display->mDisplay;
|
|
EnsureBlockDisplay(display->mDisplay);
|
|
display->mFloats = NS_STYLE_FLOAT_NONE;
|
|
}
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Display, display);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mDisplayData = display;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Display), aHighestNode);
|
|
}
|
|
|
|
return display;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeVisibilityData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataDisplay& displayData = NS_STATIC_CAST(const nsRuleDataDisplay&, aData);
|
|
nsStyleVisibility* visibility = nsnull;
|
|
const nsStyleVisibility* parentVisibility = nsnull;
|
|
PRBool inherited = aInherited;
|
|
|
|
if (parentContext && aRuleDetail != eRuleFullReset)
|
|
parentVisibility = parentContext->GetStyleVisibility();
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
visibility = new (mPresContext) nsStyleVisibility(*NS_STATIC_CAST(nsStyleVisibility*, aStartStruct));
|
|
else {
|
|
// XXXldb What about eRuleFullInherited? Which path is faster?
|
|
if (aRuleDetail != eRuleFullMixed && aRuleDetail != eRuleFullReset) {
|
|
// No question. We will have to inherit. Go ahead and init
|
|
// with inherited vals from parent.
|
|
inherited = PR_TRUE;
|
|
if (parentVisibility)
|
|
visibility = new (mPresContext) nsStyleVisibility(*parentVisibility);
|
|
}
|
|
}
|
|
|
|
if (!visibility)
|
|
visibility = new (mPresContext) nsStyleVisibility(mPresContext);
|
|
if (!parentVisibility)
|
|
parentVisibility = visibility;
|
|
|
|
// direction: enum, inherit
|
|
if (eCSSUnit_Enumerated == displayData.mDirection.GetUnit()) {
|
|
visibility->mDirection = displayData.mDirection.GetIntValue();
|
|
if (NS_STYLE_DIRECTION_RTL == visibility->mDirection)
|
|
mPresContext->SetBidiEnabled(PR_TRUE);
|
|
}
|
|
else if (eCSSUnit_Inherit == displayData.mDirection.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
visibility->mDirection = parentVisibility->mDirection;
|
|
}
|
|
|
|
// visibility: enum, inherit
|
|
if (eCSSUnit_Enumerated == displayData.mVisibility.GetUnit()) {
|
|
visibility->mVisible = displayData.mVisibility.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == displayData.mVisibility.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
visibility->mVisible = parentVisibility->mVisible;
|
|
}
|
|
|
|
// lang: string, inherit
|
|
// this is not a real CSS property, it is a html attribute mapped to CSS struture
|
|
if (eCSSUnit_String == displayData.mLang.GetUnit()) {
|
|
if (!gLangService) {
|
|
CallGetService(NS_LANGUAGEATOMSERVICE_CONTRACTID, &gLangService);
|
|
}
|
|
|
|
if (gLangService) {
|
|
nsAutoString lang;
|
|
displayData.mLang.GetStringValue(lang);
|
|
gLangService->LookupLanguage(lang.get(),
|
|
getter_AddRefs(visibility->mLanguage));
|
|
}
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Visibility, visibility);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mInheritedData)
|
|
aHighestNode->mStyleData.mInheritedData = new (mPresContext) nsInheritedStyleData;
|
|
aHighestNode->mStyleData.mInheritedData->mVisibilityData = visibility;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Visibility), aHighestNode);
|
|
}
|
|
|
|
return visibility;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeColorData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataColor& colorData = NS_STATIC_CAST(const nsRuleDataColor&, aData);
|
|
nsStyleColor* color = nsnull;
|
|
const nsStyleColor* parentColor = nsnull;
|
|
PRBool inherited = aInherited;
|
|
|
|
if (parentContext && aRuleDetail != eRuleFullReset)
|
|
parentColor = parentContext->GetStyleColor();
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
color = new (mPresContext) nsStyleColor(*NS_STATIC_CAST(nsStyleColor*, aStartStruct));
|
|
else {
|
|
// XXXldb What about eRuleFullInherited? Which path is faster?
|
|
if (aRuleDetail != eRuleFullMixed && aRuleDetail != eRuleFullReset) {
|
|
// No question. We will have to inherit. Go ahead and init
|
|
// with inherited vals from parent.
|
|
inherited = PR_TRUE;
|
|
if (parentColor)
|
|
color = new (mPresContext) nsStyleColor(*parentColor);
|
|
}
|
|
}
|
|
|
|
if (!color)
|
|
color = new (mPresContext) nsStyleColor(mPresContext);
|
|
if (!parentColor)
|
|
parentColor = color;
|
|
|
|
// color: color, string, inherit
|
|
SetColor(colorData.mColor, parentColor->mColor, mPresContext, color->mColor,
|
|
inherited);
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Color, color);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mInheritedData)
|
|
aHighestNode->mStyleData.mInheritedData = new (mPresContext) nsInheritedStyleData;
|
|
aHighestNode->mStyleData.mInheritedData->mColorData = color;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Color), aHighestNode);
|
|
}
|
|
|
|
return color;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeBackgroundData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataColor& colorData = NS_STATIC_CAST(const nsRuleDataColor&, aData);
|
|
nsStyleBackground* bg;
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
bg = new (mPresContext) nsStyleBackground(*NS_STATIC_CAST(nsStyleBackground*, aStartStruct));
|
|
else
|
|
bg = new (mPresContext) nsStyleBackground(mPresContext);
|
|
const nsStyleBackground* parentBG = bg;
|
|
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentBG = parentContext->GetStyleBackground();
|
|
PRBool inherited = aInherited;
|
|
// save parentFlags in case bg == parentBG and we clobber them later
|
|
PRUint8 parentFlags = parentBG->mBackgroundFlags;
|
|
|
|
// background-color: color, string, enum (flags), inherit
|
|
if (eCSSUnit_Inherit == colorData.mBackColor.GetUnit()) { // do inherit first, so SetColor doesn't do it
|
|
bg->mBackgroundColor = parentBG->mBackgroundColor;
|
|
bg->mBackgroundFlags &= ~NS_STYLE_BG_COLOR_TRANSPARENT;
|
|
bg->mBackgroundFlags |= (parentFlags & NS_STYLE_BG_COLOR_TRANSPARENT);
|
|
inherited = PR_TRUE;
|
|
}
|
|
else if (SetColor(colorData.mBackColor, parentBG->mBackgroundColor,
|
|
mPresContext, bg->mBackgroundColor, inherited)) {
|
|
bg->mBackgroundFlags &= ~NS_STYLE_BG_COLOR_TRANSPARENT;
|
|
}
|
|
else if (eCSSUnit_Enumerated == colorData.mBackColor.GetUnit()) {
|
|
//bg->mBackgroundColor = parentBG->mBackgroundColor; XXXwdh crap crap crap!
|
|
bg->mBackgroundFlags |= NS_STYLE_BG_COLOR_TRANSPARENT;
|
|
}
|
|
|
|
// background-image: url (stored as image), none, inherit
|
|
if (eCSSUnit_Image == colorData.mBackImage.GetUnit()) {
|
|
bg->mBackgroundImage = colorData.mBackImage.GetImageValue();
|
|
bg->mBackgroundFlags &= ~NS_STYLE_BG_IMAGE_NONE;
|
|
}
|
|
else if (eCSSUnit_None == colorData.mBackImage.GetUnit()) {
|
|
bg->mBackgroundImage = nsnull;
|
|
bg->mBackgroundFlags |= NS_STYLE_BG_IMAGE_NONE;
|
|
}
|
|
else if (eCSSUnit_Inherit == colorData.mBackImage.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
bg->mBackgroundImage = parentBG->mBackgroundImage;
|
|
bg->mBackgroundFlags &= ~NS_STYLE_BG_IMAGE_NONE;
|
|
bg->mBackgroundFlags |= (parentFlags & NS_STYLE_BG_IMAGE_NONE);
|
|
}
|
|
|
|
// background-repeat: enum, inherit
|
|
if (eCSSUnit_Enumerated == colorData.mBackRepeat.GetUnit()) {
|
|
bg->mBackgroundRepeat = colorData.mBackRepeat.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == colorData.mBackRepeat.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
bg->mBackgroundRepeat = parentBG->mBackgroundRepeat;
|
|
}
|
|
|
|
// background-attachment: enum, inherit
|
|
if (eCSSUnit_Enumerated == colorData.mBackAttachment.GetUnit()) {
|
|
bg->mBackgroundAttachment = colorData.mBackAttachment.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == colorData.mBackAttachment.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
bg->mBackgroundAttachment = parentBG->mBackgroundAttachment;
|
|
}
|
|
|
|
// background-clip: enum, inherit, initial
|
|
if (eCSSUnit_Enumerated == colorData.mBackClip.GetUnit()) {
|
|
bg->mBackgroundClip = colorData.mBackClip.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == colorData.mBackClip.GetUnit()) {
|
|
bg->mBackgroundClip = parentBG->mBackgroundClip;
|
|
}
|
|
else if (eCSSUnit_Initial == colorData.mBackClip.GetUnit()) {
|
|
bg->mBackgroundClip = NS_STYLE_BG_CLIP_BORDER;
|
|
}
|
|
|
|
// background-inline-policy: enum, inherit, initial
|
|
if (eCSSUnit_Enumerated == colorData.mBackInlinePolicy.GetUnit()) {
|
|
bg->mBackgroundInlinePolicy = colorData.mBackInlinePolicy.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == colorData.mBackInlinePolicy.GetUnit()) {
|
|
bg->mBackgroundInlinePolicy = parentBG->mBackgroundInlinePolicy;
|
|
}
|
|
else if (eCSSUnit_Initial == colorData.mBackInlinePolicy.GetUnit()) {
|
|
bg->mBackgroundInlinePolicy = NS_STYLE_BG_INLINE_POLICY_CONTINUOUS;
|
|
}
|
|
|
|
// background-origin: enum, inherit, initial
|
|
if (eCSSUnit_Enumerated == colorData.mBackOrigin.GetUnit()) {
|
|
bg->mBackgroundOrigin = colorData.mBackOrigin.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == colorData.mBackOrigin.GetUnit()) {
|
|
bg->mBackgroundOrigin = parentBG->mBackgroundOrigin;
|
|
}
|
|
else if (eCSSUnit_Initial == colorData.mBackOrigin.GetUnit()) {
|
|
bg->mBackgroundOrigin = NS_STYLE_BG_ORIGIN_PADDING;
|
|
}
|
|
|
|
// background-position: enum, length, percent (flags), inherit
|
|
if (eCSSUnit_Percent == colorData.mBackPositionX.GetUnit()) {
|
|
bg->mBackgroundXPosition.mFloat = colorData.mBackPositionX.GetPercentValue();
|
|
bg->mBackgroundFlags |= NS_STYLE_BG_X_POSITION_PERCENT;
|
|
bg->mBackgroundFlags &= ~NS_STYLE_BG_X_POSITION_LENGTH;
|
|
}
|
|
else if (colorData.mBackPositionX.IsLengthUnit()) {
|
|
bg->mBackgroundXPosition.mCoord = CalcLength(colorData.mBackPositionX, nsnull,
|
|
aContext, mPresContext, inherited);
|
|
bg->mBackgroundFlags |= NS_STYLE_BG_X_POSITION_LENGTH;
|
|
bg->mBackgroundFlags &= ~NS_STYLE_BG_X_POSITION_PERCENT;
|
|
}
|
|
else if (eCSSUnit_Enumerated == colorData.mBackPositionX.GetUnit()) {
|
|
bg->mBackgroundXPosition.mFloat = (float)colorData.mBackPositionX.GetIntValue() / 100.0f;
|
|
bg->mBackgroundFlags |= NS_STYLE_BG_X_POSITION_PERCENT;
|
|
bg->mBackgroundFlags &= ~NS_STYLE_BG_X_POSITION_LENGTH;
|
|
}
|
|
else if (eCSSUnit_Inherit == colorData.mBackPositionX.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
bg->mBackgroundXPosition = parentBG->mBackgroundXPosition;
|
|
bg->mBackgroundFlags &= ~(NS_STYLE_BG_X_POSITION_LENGTH | NS_STYLE_BG_X_POSITION_PERCENT);
|
|
bg->mBackgroundFlags |= (parentFlags & (NS_STYLE_BG_X_POSITION_LENGTH | NS_STYLE_BG_X_POSITION_PERCENT));
|
|
}
|
|
|
|
if (eCSSUnit_Percent == colorData.mBackPositionY.GetUnit()) {
|
|
bg->mBackgroundYPosition.mFloat = colorData.mBackPositionY.GetPercentValue();
|
|
bg->mBackgroundFlags |= NS_STYLE_BG_Y_POSITION_PERCENT;
|
|
bg->mBackgroundFlags &= ~NS_STYLE_BG_Y_POSITION_LENGTH;
|
|
}
|
|
else if (colorData.mBackPositionY.IsLengthUnit()) {
|
|
bg->mBackgroundYPosition.mCoord = CalcLength(colorData.mBackPositionY, nsnull,
|
|
aContext, mPresContext, inherited);
|
|
bg->mBackgroundFlags |= NS_STYLE_BG_Y_POSITION_LENGTH;
|
|
bg->mBackgroundFlags &= ~NS_STYLE_BG_Y_POSITION_PERCENT;
|
|
}
|
|
else if (eCSSUnit_Enumerated == colorData.mBackPositionY.GetUnit()) {
|
|
bg->mBackgroundYPosition.mFloat = (float)colorData.mBackPositionY.GetIntValue() / 100.0f;
|
|
bg->mBackgroundFlags |= NS_STYLE_BG_Y_POSITION_PERCENT;
|
|
bg->mBackgroundFlags &= ~NS_STYLE_BG_Y_POSITION_LENGTH;
|
|
}
|
|
else if (eCSSUnit_Inherit == colorData.mBackPositionY.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
bg->mBackgroundYPosition = parentBG->mBackgroundYPosition;
|
|
bg->mBackgroundFlags &= ~(NS_STYLE_BG_Y_POSITION_LENGTH | NS_STYLE_BG_Y_POSITION_PERCENT);
|
|
bg->mBackgroundFlags |= (parentFlags & (NS_STYLE_BG_Y_POSITION_LENGTH | NS_STYLE_BG_Y_POSITION_PERCENT));
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Background, bg);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mBackgroundData = bg;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Background), aHighestNode);
|
|
}
|
|
|
|
return bg;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeMarginData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataMargin& marginData = NS_STATIC_CAST(const nsRuleDataMargin&, aData);
|
|
nsStyleMargin* margin;
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
margin = new (mPresContext) nsStyleMargin(*NS_STATIC_CAST(nsStyleMargin*, aStartStruct));
|
|
else
|
|
margin = new (mPresContext) nsStyleMargin();
|
|
const nsStyleMargin* parentMargin = margin;
|
|
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentMargin = parentContext->GetStyleMargin();
|
|
PRBool inherited = aInherited;
|
|
|
|
// margin: length, percent, auto, inherit
|
|
nsStyleCoord coord;
|
|
nsStyleCoord parentCoord;
|
|
FOR_CSS_SIDES(side) {
|
|
parentMargin->mMargin.Get(side, parentCoord);
|
|
if (SetCoord(marginData.mMargin.*(nsCSSRect::sides[side]),
|
|
coord, parentCoord, SETCOORD_LPAH,
|
|
aContext, mPresContext, inherited)) {
|
|
margin->mMargin.Set(side, coord);
|
|
}
|
|
}
|
|
|
|
AdjustLogicalBoxProp(aContext,
|
|
marginData.mMarginLeftLTRSource,
|
|
marginData.mMarginLeftRTLSource,
|
|
marginData.mMarginStart, marginData.mMarginEnd,
|
|
parentMargin->mMargin, margin->mMargin,
|
|
NS_SIDE_LEFT, SETCOORD_LPAH, inherited);
|
|
AdjustLogicalBoxProp(aContext,
|
|
marginData.mMarginRightLTRSource,
|
|
marginData.mMarginRightRTLSource,
|
|
marginData.mMarginEnd, marginData.mMarginStart,
|
|
parentMargin->mMargin, margin->mMargin,
|
|
NS_SIDE_RIGHT, SETCOORD_LPAH, inherited);
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Margin, margin);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mMarginData = margin;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Margin), aHighestNode);
|
|
}
|
|
|
|
margin->RecalcData();
|
|
return margin;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeBorderData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataMargin& marginData = NS_STATIC_CAST(const nsRuleDataMargin&, aData);
|
|
nsStyleBorder* border;
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
border = new (mPresContext) nsStyleBorder(*NS_STATIC_CAST(nsStyleBorder*, aStartStruct));
|
|
else
|
|
border = new (mPresContext) nsStyleBorder(mPresContext);
|
|
|
|
const nsStyleBorder* parentBorder = border;
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentBorder = parentContext->GetStyleBorder();
|
|
PRBool inherited = aInherited;
|
|
|
|
// border-size: length, enum, inherit
|
|
nsStyleCoord coord;
|
|
nsStyleCoord parentCoord;
|
|
{ // scope for compilers with broken |for| loop scoping
|
|
FOR_CSS_SIDES(side) {
|
|
const nsCSSValue &value = marginData.mBorderWidth.*(nsCSSRect::sides[side]);
|
|
if (SetCoord(value, coord, parentCoord, SETCOORD_LE, aContext,
|
|
mPresContext, inherited))
|
|
border->mBorder.Set(side, coord);
|
|
else if (eCSSUnit_Inherit == value.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
border->mBorder.Set(side, parentBorder->mBorder.Get(side, coord));
|
|
}
|
|
}
|
|
}
|
|
|
|
// border-style: enum, none, inhert
|
|
const nsCSSRect& ourStyle = marginData.mBorderStyle;
|
|
{ // scope for compilers with broken |for| loop scoping
|
|
FOR_CSS_SIDES(side) {
|
|
const nsCSSValue &value = ourStyle.*(nsCSSRect::sides[side]);
|
|
nsCSSUnit unit = value.GetUnit();
|
|
if (eCSSUnit_Enumerated == unit) {
|
|
border->SetBorderStyle(side, value.GetIntValue());
|
|
}
|
|
else if (eCSSUnit_None == unit) {
|
|
border->SetBorderStyle(side, NS_STYLE_BORDER_STYLE_NONE);
|
|
}
|
|
else if (eCSSUnit_Inherit == unit) {
|
|
inherited = PR_TRUE;
|
|
border->SetBorderStyle(side, parentBorder->GetBorderStyle(side));
|
|
}
|
|
}
|
|
}
|
|
|
|
// border-colors: color, string, enum
|
|
nscolor borderColor;
|
|
nscolor unused = NS_RGB(0,0,0);
|
|
|
|
{ // scope for compilers with broken |for| loop scoping
|
|
FOR_CSS_SIDES(side) {
|
|
nsCSSValueList* list =
|
|
marginData.mBorderColors.*(nsCSSValueListRect::sides[side]);
|
|
if (list) {
|
|
// Some composite border color information has been specified for this
|
|
// border side.
|
|
border->EnsureBorderColors();
|
|
border->ClearBorderColors(side);
|
|
while (list) {
|
|
if (SetColor(list->mValue, unused, mPresContext, borderColor, inherited))
|
|
border->AppendBorderColor(side, borderColor, PR_FALSE);
|
|
else if (eCSSUnit_Enumerated == list->mValue.GetUnit() &&
|
|
NS_STYLE_COLOR_TRANSPARENT == list->mValue.GetIntValue())
|
|
border->AppendBorderColor(side, nsnull, PR_TRUE);
|
|
list = list->mNext;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// border-color: color, string, enum, inherit
|
|
const nsCSSRect& ourBorderColor = marginData.mBorderColor;
|
|
PRBool transparent;
|
|
PRBool foreground;
|
|
|
|
{ // scope for compilers with broken |for| loop scoping
|
|
FOR_CSS_SIDES(side) {
|
|
const nsCSSValue &value = ourBorderColor.*(nsCSSRect::sides[side]);
|
|
if (eCSSUnit_Inherit == value.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
parentBorder->GetBorderColor(side, borderColor,
|
|
transparent, foreground);
|
|
if (transparent)
|
|
border->SetBorderTransparent(side);
|
|
else if (foreground) {
|
|
// We want to inherit the color from the parent, not use the
|
|
// color on the element where this chunk of style data will be
|
|
// used. We can ensure that the data for the parent are fully
|
|
// computed (unlike for the element where this will be used, for
|
|
// which the color could be specified on a more specific rule).
|
|
border->SetBorderColor(side, parentContext->GetStyleColor()->mColor);
|
|
} else
|
|
border->SetBorderColor(side, borderColor);
|
|
}
|
|
else if (SetColor(value, unused, mPresContext, borderColor, inherited)) {
|
|
border->SetBorderColor(side, borderColor);
|
|
}
|
|
else if (eCSSUnit_Enumerated == value.GetUnit()) {
|
|
switch (value.GetIntValue()) {
|
|
case NS_STYLE_COLOR_TRANSPARENT:
|
|
border->SetBorderTransparent(side);
|
|
break;
|
|
case NS_STYLE_COLOR_MOZ_USE_TEXT_COLOR:
|
|
border->SetBorderToForeground(side);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// -moz-border-radius: length, percent, inherit
|
|
{ // scope for compilers with broken |for| loop scoping
|
|
FOR_CSS_SIDES(side) {
|
|
parentBorder->mBorderRadius.Get(side, parentCoord);
|
|
if (SetCoord(marginData.mBorderRadius.*(nsCSSRect::sides[side]), coord,
|
|
parentCoord, SETCOORD_LPH, aContext, mPresContext,
|
|
inherited))
|
|
border->mBorderRadius.Set(side, coord);
|
|
}
|
|
}
|
|
|
|
// float-edge: enum, inherit
|
|
if (eCSSUnit_Enumerated == marginData.mFloatEdge.GetUnit())
|
|
border->mFloatEdge = marginData.mFloatEdge.GetIntValue();
|
|
else if (eCSSUnit_Inherit == marginData.mFloatEdge.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
border->mFloatEdge = parentBorder->mFloatEdge;
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Border, border);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mBorderData = border;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Border), aHighestNode);
|
|
}
|
|
|
|
border->RecalcData();
|
|
return border;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputePaddingData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataMargin& marginData = NS_STATIC_CAST(const nsRuleDataMargin&, aData);
|
|
nsStylePadding* padding;
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
padding = new (mPresContext) nsStylePadding(*NS_STATIC_CAST(nsStylePadding*, aStartStruct));
|
|
else
|
|
padding = new (mPresContext) nsStylePadding();
|
|
|
|
const nsStylePadding* parentPadding = padding;
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentPadding = parentContext->GetStylePadding();
|
|
PRBool inherited = aInherited;
|
|
|
|
// padding: length, percent, inherit
|
|
nsStyleCoord coord;
|
|
nsStyleCoord parentCoord;
|
|
FOR_CSS_SIDES(side) {
|
|
parentPadding->mPadding.Get(side, parentCoord);
|
|
if (SetCoord(marginData.mPadding.*(nsCSSRect::sides[side]),
|
|
coord, parentCoord, SETCOORD_LPH,
|
|
aContext, mPresContext, inherited)) {
|
|
padding->mPadding.Set(side, coord);
|
|
}
|
|
}
|
|
|
|
AdjustLogicalBoxProp(aContext,
|
|
marginData.mPaddingLeftLTRSource,
|
|
marginData.mPaddingLeftRTLSource,
|
|
marginData.mPaddingStart, marginData.mPaddingEnd,
|
|
parentPadding->mPadding, padding->mPadding,
|
|
NS_SIDE_LEFT, SETCOORD_LPH, inherited);
|
|
AdjustLogicalBoxProp(aContext,
|
|
marginData.mPaddingRightLTRSource,
|
|
marginData.mPaddingRightRTLSource,
|
|
marginData.mPaddingEnd, marginData.mPaddingStart,
|
|
parentPadding->mPadding, padding->mPadding,
|
|
NS_SIDE_RIGHT, SETCOORD_LPH, inherited);
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Padding, padding);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mPaddingData = padding;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Padding), aHighestNode);
|
|
}
|
|
|
|
padding->RecalcData();
|
|
return padding;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeOutlineData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataMargin& marginData = NS_STATIC_CAST(const nsRuleDataMargin&, aData);
|
|
nsStyleOutline* outline;
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
outline = new (mPresContext) nsStyleOutline(*NS_STATIC_CAST(nsStyleOutline*, aStartStruct));
|
|
else
|
|
outline = new (mPresContext) nsStyleOutline(mPresContext);
|
|
|
|
const nsStyleOutline* parentOutline = outline;
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentOutline = parentContext->GetStyleOutline();
|
|
PRBool inherited = aInherited;
|
|
|
|
// outline-width: length, enum, inherit
|
|
SetCoord(marginData.mOutlineWidth, outline->mOutlineWidth, parentOutline->mOutlineWidth,
|
|
SETCOORD_LEH, aContext, mPresContext, inherited);
|
|
|
|
// outline-color: color, string, enum, inherit
|
|
nscolor outlineColor;
|
|
nscolor unused = NS_RGB(0,0,0);
|
|
if (eCSSUnit_Inherit == marginData.mOutlineColor.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
if (parentOutline->GetOutlineColor(outlineColor))
|
|
outline->SetOutlineColor(outlineColor);
|
|
else
|
|
outline->SetOutlineInvert();
|
|
}
|
|
else if (SetColor(marginData.mOutlineColor, unused, mPresContext, outlineColor, inherited))
|
|
outline->SetOutlineColor(outlineColor);
|
|
else if (eCSSUnit_Enumerated == marginData.mOutlineColor.GetUnit())
|
|
outline->SetOutlineInvert();
|
|
|
|
// outline-style: enum, none, inherit
|
|
if (eCSSUnit_Enumerated == marginData.mOutlineStyle.GetUnit())
|
|
outline->SetOutlineStyle(marginData.mOutlineStyle.GetIntValue());
|
|
else if (eCSSUnit_None == marginData.mOutlineStyle.GetUnit())
|
|
outline->SetOutlineStyle(NS_STYLE_BORDER_STYLE_NONE);
|
|
else if (eCSSUnit_Inherit == marginData.mOutlineStyle.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
outline->SetOutlineStyle(parentOutline->GetOutlineStyle());
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Outline, outline);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mOutlineData = outline;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Outline), aHighestNode);
|
|
}
|
|
|
|
outline->RecalcData();
|
|
return outline;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeListData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataList& listData = NS_STATIC_CAST(const nsRuleDataList&, aData);
|
|
nsStyleList* list = nsnull;
|
|
const nsStyleList* parentList = nsnull;
|
|
PRBool inherited = aInherited;
|
|
|
|
if (parentContext && aRuleDetail != eRuleFullReset)
|
|
parentList = parentContext->GetStyleList();
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
list = new (mPresContext) nsStyleList(*NS_STATIC_CAST(nsStyleList*, aStartStruct));
|
|
else {
|
|
// XXXldb What about eRuleFullInherited? Which path is faster?
|
|
if (aRuleDetail != eRuleFullMixed && aRuleDetail != eRuleFullReset) {
|
|
// No question. We will have to inherit. Go ahead and init
|
|
// with inherited vals from parent.
|
|
inherited = PR_TRUE;
|
|
if (parentList)
|
|
list = new (mPresContext) nsStyleList(*parentList);
|
|
}
|
|
}
|
|
|
|
if (!list)
|
|
list = new (mPresContext) nsStyleList();
|
|
if (!parentList)
|
|
parentList = list;
|
|
|
|
// list-style-type: enum, none, inherit
|
|
if (eCSSUnit_Enumerated == listData.mType.GetUnit()) {
|
|
list->mListStyleType = listData.mType.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_None == listData.mType.GetUnit()) {
|
|
list->mListStyleType = NS_STYLE_LIST_STYLE_NONE;
|
|
}
|
|
else if (eCSSUnit_Inherit == listData.mType.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
list->mListStyleType = parentList->mListStyleType;
|
|
}
|
|
|
|
// list-style-image: url, none, inherit
|
|
if (eCSSUnit_URL == listData.mImage.GetUnit()) {
|
|
list->mListStyleImage = listData.mImage.GetURLValue();
|
|
}
|
|
else if (eCSSUnit_None == listData.mImage.GetUnit()) {
|
|
list->mListStyleImage = nsnull;
|
|
}
|
|
else if (eCSSUnit_Inherit == listData.mImage.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
list->mListStyleImage = parentList->mListStyleImage;
|
|
}
|
|
|
|
// list-style-position: enum, inherit
|
|
if (eCSSUnit_Enumerated == listData.mPosition.GetUnit()) {
|
|
list->mListStylePosition = listData.mPosition.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == listData.mPosition.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
list->mListStylePosition = parentList->mListStylePosition;
|
|
}
|
|
|
|
// image region property: length, auto, inherit
|
|
if (eCSSUnit_Inherit == listData.mImageRegion.mTop.GetUnit()) { // if one is inherit, they all are
|
|
inherited = PR_TRUE;
|
|
list->mImageRegion = parentList->mImageRegion;
|
|
}
|
|
else {
|
|
if (eCSSUnit_Auto == listData.mImageRegion.mTop.GetUnit())
|
|
list->mImageRegion.y = 0;
|
|
else if (listData.mImageRegion.mTop.IsLengthUnit())
|
|
list->mImageRegion.y = CalcLength(listData.mImageRegion.mTop, nsnull, aContext, mPresContext, inherited);
|
|
|
|
if (eCSSUnit_Auto == listData.mImageRegion.mBottom.GetUnit())
|
|
list->mImageRegion.height = 0;
|
|
else if (listData.mImageRegion.mBottom.IsLengthUnit())
|
|
list->mImageRegion.height = CalcLength(listData.mImageRegion.mBottom, nsnull, aContext,
|
|
mPresContext, inherited) - list->mImageRegion.y;
|
|
|
|
if (eCSSUnit_Auto == listData.mImageRegion.mLeft.GetUnit())
|
|
list->mImageRegion.x = 0;
|
|
else if (listData.mImageRegion.mLeft.IsLengthUnit())
|
|
list->mImageRegion.x = CalcLength(listData.mImageRegion.mLeft, nsnull, aContext, mPresContext, inherited);
|
|
|
|
if (eCSSUnit_Auto == listData.mImageRegion.mRight.GetUnit())
|
|
list->mImageRegion.width = 0;
|
|
else if (listData.mImageRegion.mRight.IsLengthUnit())
|
|
list->mImageRegion.width = CalcLength(listData.mImageRegion.mRight, nsnull, aContext, mPresContext, inherited) -
|
|
list->mImageRegion.x;
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_List, list);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mInheritedData)
|
|
aHighestNode->mStyleData.mInheritedData = new (mPresContext) nsInheritedStyleData;
|
|
aHighestNode->mStyleData.mInheritedData->mListData = list;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(List), aHighestNode);
|
|
}
|
|
|
|
return list;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputePositionData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataPosition& posData = NS_STATIC_CAST(const nsRuleDataPosition&, aData);
|
|
nsStylePosition* pos;
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
pos = new (mPresContext) nsStylePosition(*NS_STATIC_CAST(nsStylePosition*, aStartStruct));
|
|
else
|
|
pos = new (mPresContext) nsStylePosition();
|
|
|
|
const nsStylePosition* parentPos = pos;
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentPos = parentContext->GetStylePosition();
|
|
PRBool inherited = aInherited;
|
|
|
|
// box offsets: length, percent, auto, inherit
|
|
nsStyleCoord coord;
|
|
nsStyleCoord parentCoord;
|
|
FOR_CSS_SIDES(side) {
|
|
parentPos->mOffset.Get(side, parentCoord);
|
|
if (SetCoord(posData.mOffset.*(nsCSSRect::sides[side]),
|
|
coord, parentCoord, SETCOORD_LPAH,
|
|
aContext, mPresContext, inherited)) {
|
|
pos->mOffset.Set(side, coord);
|
|
}
|
|
}
|
|
|
|
if (posData.mWidth.GetUnit() == eCSSUnit_Proportional)
|
|
pos->mWidth.SetIntValue((PRInt32)(posData.mWidth.GetFloatValue()), eStyleUnit_Proportional);
|
|
else
|
|
SetCoord(posData.mWidth, pos->mWidth, parentPos->mWidth,
|
|
SETCOORD_LPAH, aContext, mPresContext, inherited);
|
|
SetCoord(posData.mMinWidth, pos->mMinWidth, parentPos->mMinWidth,
|
|
SETCOORD_LPH, aContext, mPresContext, inherited);
|
|
if (! SetCoord(posData.mMaxWidth, pos->mMaxWidth, parentPos->mMaxWidth,
|
|
SETCOORD_LPH, aContext, mPresContext, inherited)) {
|
|
if (eCSSUnit_None == posData.mMaxWidth.GetUnit()) {
|
|
pos->mMaxWidth.Reset();
|
|
}
|
|
}
|
|
|
|
SetCoord(posData.mHeight, pos->mHeight, parentPos->mHeight,
|
|
SETCOORD_LPAH, aContext, mPresContext, inherited);
|
|
SetCoord(posData.mMinHeight, pos->mMinHeight, parentPos->mMinHeight,
|
|
SETCOORD_LPH, aContext, mPresContext, inherited);
|
|
if (! SetCoord(posData.mMaxHeight, pos->mMaxHeight, parentPos->mMaxHeight,
|
|
SETCOORD_LPH, aContext, mPresContext, inherited)) {
|
|
if (eCSSUnit_None == posData.mMaxHeight.GetUnit()) {
|
|
pos->mMaxHeight.Reset();
|
|
}
|
|
}
|
|
|
|
// box-sizing: enum, inherit
|
|
if (eCSSUnit_Enumerated == posData.mBoxSizing.GetUnit()) {
|
|
pos->mBoxSizing = posData.mBoxSizing.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == posData.mBoxSizing.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
pos->mBoxSizing = parentPos->mBoxSizing;
|
|
}
|
|
|
|
// z-index
|
|
if (! SetCoord(posData.mZIndex, pos->mZIndex, parentPos->mZIndex,
|
|
SETCOORD_IA, aContext, nsnull, inherited)) {
|
|
if (eCSSUnit_Inherit == posData.mZIndex.GetUnit()) {
|
|
// handle inherit, because it's ok to inherit 'auto' here
|
|
inherited = PR_TRUE;
|
|
pos->mZIndex = parentPos->mZIndex;
|
|
}
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Position, pos);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mPositionData = pos;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Position), aHighestNode);
|
|
}
|
|
|
|
return pos;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeTableData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataTable& tableData = NS_STATIC_CAST(const nsRuleDataTable&, aData);
|
|
nsStyleTable* table;
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
table = new (mPresContext) nsStyleTable(*NS_STATIC_CAST(nsStyleTable*, aStartStruct));
|
|
else
|
|
table = new (mPresContext) nsStyleTable();
|
|
|
|
const nsStyleTable* parentTable = table;
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentTable = parentContext->GetStyleTable();
|
|
PRBool inherited = aInherited;
|
|
|
|
// table-layout: auto, enum, inherit
|
|
if (eCSSUnit_Enumerated == tableData.mLayout.GetUnit())
|
|
table->mLayoutStrategy = tableData.mLayout.GetIntValue();
|
|
else if (eCSSUnit_Auto == tableData.mLayout.GetUnit())
|
|
table->mLayoutStrategy = NS_STYLE_TABLE_LAYOUT_AUTO;
|
|
else if (eCSSUnit_Inherit == tableData.mLayout.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
table->mLayoutStrategy = parentTable->mLayoutStrategy;
|
|
}
|
|
|
|
// rules: enum (not a real CSS prop)
|
|
if (eCSSUnit_Enumerated == tableData.mRules.GetUnit())
|
|
table->mRules = tableData.mRules.GetIntValue();
|
|
|
|
// frame: enum (not a real CSS prop)
|
|
if (eCSSUnit_Enumerated == tableData.mFrame.GetUnit())
|
|
table->mFrame = tableData.mFrame.GetIntValue();
|
|
|
|
// cols: enum, int (not a real CSS prop)
|
|
if (eCSSUnit_Enumerated == tableData.mCols.GetUnit() ||
|
|
eCSSUnit_Integer == tableData.mCols.GetUnit())
|
|
table->mCols = tableData.mCols.GetIntValue();
|
|
|
|
// span: pixels (not a real CSS prop)
|
|
if (eCSSUnit_Enumerated == tableData.mSpan.GetUnit() ||
|
|
eCSSUnit_Integer == tableData.mSpan.GetUnit())
|
|
table->mSpan = tableData.mSpan.GetIntValue();
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Table, table);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mTableData = table;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Table), aHighestNode);
|
|
}
|
|
|
|
return table;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeTableBorderData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataTable& tableData = NS_STATIC_CAST(const nsRuleDataTable&, aData);
|
|
nsStyleTableBorder* table = nsnull;
|
|
const nsStyleTableBorder* parentTable = nsnull;
|
|
PRBool inherited = aInherited;
|
|
|
|
if (parentContext && aRuleDetail != eRuleFullReset)
|
|
parentTable = parentContext->GetStyleTableBorder();
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
table = new (mPresContext) nsStyleTableBorder(*NS_STATIC_CAST(nsStyleTableBorder*, aStartStruct));
|
|
else {
|
|
// XXXldb What about eRuleFullInherited? Which path is faster?
|
|
if (aRuleDetail != eRuleFullMixed && aRuleDetail != eRuleFullReset) {
|
|
// No question. We will have to inherit. Go ahead and init
|
|
// with inherited vals from parent.
|
|
inherited = PR_TRUE;
|
|
if (parentTable)
|
|
table = new (mPresContext) nsStyleTableBorder(*parentTable);
|
|
}
|
|
}
|
|
|
|
if (!table)
|
|
table = new (mPresContext) nsStyleTableBorder(mPresContext);
|
|
if (!parentTable)
|
|
parentTable = table;
|
|
|
|
// border-collapse: enum, inherit
|
|
if (eCSSUnit_Enumerated == tableData.mBorderCollapse.GetUnit()) {
|
|
table->mBorderCollapse = tableData.mBorderCollapse.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == tableData.mBorderCollapse.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
table->mBorderCollapse = parentTable->mBorderCollapse;
|
|
}
|
|
|
|
nsStyleCoord coord;
|
|
|
|
// border-spacing-x: length, inherit
|
|
if (SetCoord(tableData.mBorderSpacingX, coord, coord, SETCOORD_LENGTH, aContext, mPresContext, inherited)) {
|
|
table->mBorderSpacingX = coord.GetCoordValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == tableData.mBorderSpacingX.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
table->mBorderSpacingX = parentTable->mBorderSpacingX;
|
|
}
|
|
// border-spacing-y: length, inherit
|
|
if (SetCoord(tableData.mBorderSpacingY, coord, coord, SETCOORD_LENGTH, aContext, mPresContext, inherited)) {
|
|
table->mBorderSpacingY = coord.GetCoordValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == tableData.mBorderSpacingY.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
table->mBorderSpacingY = parentTable->mBorderSpacingY;
|
|
}
|
|
|
|
// caption-side: enum, inherit
|
|
if (eCSSUnit_Enumerated == tableData.mCaptionSide.GetUnit()) {
|
|
table->mCaptionSide = tableData.mCaptionSide.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == tableData.mCaptionSide.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
table->mCaptionSide = parentTable->mCaptionSide;
|
|
}
|
|
|
|
// empty-cells: enum, inherit
|
|
if (eCSSUnit_Enumerated == tableData.mEmptyCells.GetUnit()) {
|
|
table->mEmptyCells = tableData.mEmptyCells.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == tableData.mEmptyCells.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
table->mEmptyCells = parentTable->mEmptyCells;
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_TableBorder, table);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mInheritedData)
|
|
aHighestNode->mStyleData.mInheritedData = new (mPresContext) nsInheritedStyleData;
|
|
aHighestNode->mStyleData.mInheritedData->mTableBorderData = table;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(TableBorder), aHighestNode);
|
|
}
|
|
|
|
return table;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeContentData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataContent& contentData = NS_STATIC_CAST(const nsRuleDataContent&, aData);
|
|
nsStyleContent* content;
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
content = new (mPresContext) nsStyleContent(*NS_STATIC_CAST(nsStyleContent*, aStartStruct));
|
|
else
|
|
content = new (mPresContext) nsStyleContent();
|
|
|
|
const nsStyleContent* parentContent = content;
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentContent = parentContext->GetStyleContent();
|
|
PRBool inherited = aInherited;
|
|
|
|
// content: [string, url, counter, attr, enum]+, inherit
|
|
PRUint32 count;
|
|
nsAutoString buffer;
|
|
nsCSSValueList* contentValue = contentData.mContent;
|
|
if (contentValue) {
|
|
if (eCSSUnit_Inherit == contentValue->mValue.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
count = parentContent->ContentCount();
|
|
if (NS_SUCCEEDED(content->AllocateContents(count))) {
|
|
while (0 < count--) {
|
|
content->ContentAt(count) = parentContent->ContentAt(count);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
count = 0;
|
|
while (contentValue) {
|
|
count++;
|
|
contentValue = contentValue->mNext;
|
|
}
|
|
if (NS_SUCCEEDED(content->AllocateContents(count))) {
|
|
const nsAutoString nullStr;
|
|
count = 0;
|
|
contentValue = contentData.mContent;
|
|
while (contentValue) {
|
|
const nsCSSValue& value = contentValue->mValue;
|
|
nsCSSUnit unit = value.GetUnit();
|
|
nsStyleContentType type;
|
|
nsStyleContentData &data = content->ContentAt(count++);
|
|
switch (unit) {
|
|
case eCSSUnit_String: type = eStyleContentType_String; break;
|
|
case eCSSUnit_URL: type = eStyleContentType_URL; break;
|
|
case eCSSUnit_Attr: type = eStyleContentType_Attr; break;
|
|
case eCSSUnit_Counter: type = eStyleContentType_Counter; break;
|
|
case eCSSUnit_Counters: type = eStyleContentType_Counters; break;
|
|
case eCSSUnit_Enumerated:
|
|
switch (value.GetIntValue()) {
|
|
case NS_STYLE_CONTENT_OPEN_QUOTE:
|
|
type = eStyleContentType_OpenQuote; break;
|
|
case NS_STYLE_CONTENT_CLOSE_QUOTE:
|
|
type = eStyleContentType_CloseQuote; break;
|
|
case NS_STYLE_CONTENT_NO_OPEN_QUOTE:
|
|
type = eStyleContentType_NoOpenQuote; break;
|
|
case NS_STYLE_CONTENT_NO_CLOSE_QUOTE:
|
|
type = eStyleContentType_NoCloseQuote; break;
|
|
default:
|
|
NS_ERROR("bad content value");
|
|
}
|
|
break;
|
|
default:
|
|
NS_ERROR("bad content type");
|
|
}
|
|
data.mType = type;
|
|
if (type == eStyleContentType_URL) {
|
|
data.mContent.mURL = value.GetURLValue();
|
|
NS_IF_ADDREF(data.mContent.mURL);
|
|
}
|
|
else if (type < eStyleContentType_OpenQuote) {
|
|
value.GetStringValue(buffer);
|
|
Unquote(buffer);
|
|
data.mContent.mString = nsCRT::strdup(buffer.get());
|
|
}
|
|
else {
|
|
data.mContent.mString = nsnull;
|
|
}
|
|
contentValue = contentValue->mNext;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// counter-increment: [string [int]]+, none, inherit
|
|
nsCSSCounterData* ourIncrement = contentData.mCounterIncrement;
|
|
if (ourIncrement) {
|
|
PRInt32 increment;
|
|
if (eCSSUnit_Inherit == ourIncrement->mCounter.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
count = parentContent->CounterIncrementCount();
|
|
if (NS_SUCCEEDED(content->AllocateCounterIncrements(count))) {
|
|
while (0 < count--) {
|
|
parentContent->GetCounterIncrementAt(count, buffer, increment);
|
|
content->SetCounterIncrementAt(count, buffer, increment);
|
|
}
|
|
}
|
|
}
|
|
else if (eCSSUnit_None == ourIncrement->mCounter.GetUnit()) {
|
|
content->AllocateCounterIncrements(0);
|
|
}
|
|
else if (eCSSUnit_String == ourIncrement->mCounter.GetUnit()) {
|
|
count = 0;
|
|
while (ourIncrement) {
|
|
count++;
|
|
ourIncrement = ourIncrement->mNext;
|
|
}
|
|
if (NS_SUCCEEDED(content->AllocateCounterIncrements(count))) {
|
|
count = 0;
|
|
ourIncrement = contentData.mCounterIncrement;
|
|
while (ourIncrement) {
|
|
if (eCSSUnit_Integer == ourIncrement->mValue.GetUnit()) {
|
|
increment = ourIncrement->mValue.GetIntValue();
|
|
}
|
|
else {
|
|
increment = 1;
|
|
}
|
|
ourIncrement->mCounter.GetStringValue(buffer);
|
|
content->SetCounterIncrementAt(count++, buffer, increment);
|
|
ourIncrement = ourIncrement->mNext;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// counter-reset: [string [int]]+, none, inherit
|
|
nsCSSCounterData* ourReset = contentData.mCounterReset;
|
|
if (ourReset) {
|
|
PRInt32 reset;
|
|
if (eCSSUnit_Inherit == ourReset->mCounter.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
count = parentContent->CounterResetCount();
|
|
if (NS_SUCCEEDED(content->AllocateCounterResets(count))) {
|
|
while (0 < count--) {
|
|
parentContent->GetCounterResetAt(count, buffer, reset);
|
|
content->SetCounterResetAt(count, buffer, reset);
|
|
}
|
|
}
|
|
}
|
|
else if (eCSSUnit_None == ourReset->mCounter.GetUnit()) {
|
|
content->AllocateCounterResets(0);
|
|
}
|
|
else if (eCSSUnit_String == ourReset->mCounter.GetUnit()) {
|
|
count = 0;
|
|
while (ourReset) {
|
|
count++;
|
|
ourReset = ourReset->mNext;
|
|
}
|
|
if (NS_SUCCEEDED(content->AllocateCounterResets(count))) {
|
|
count = 0;
|
|
ourReset = contentData.mCounterReset;
|
|
while (ourReset) {
|
|
if (eCSSUnit_Integer == ourReset->mValue.GetUnit()) {
|
|
reset = ourReset->mValue.GetIntValue();
|
|
}
|
|
else {
|
|
reset = 0;
|
|
}
|
|
ourReset->mCounter.GetStringValue(buffer);
|
|
content->SetCounterResetAt(count++, buffer, reset);
|
|
ourReset = ourReset->mNext;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// marker-offset: length, auto, inherit
|
|
SetCoord(contentData.mMarkerOffset, content->mMarkerOffset, parentContent->mMarkerOffset,
|
|
SETCOORD_LH | SETCOORD_AUTO, aContext, mPresContext, inherited);
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Content, content);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mContentData = content;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Content), aHighestNode);
|
|
}
|
|
|
|
return content;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeQuotesData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataContent& contentData = NS_STATIC_CAST(const nsRuleDataContent&, aData);
|
|
nsStyleQuotes* quotes = nsnull;
|
|
const nsStyleQuotes* parentQuotes = nsnull;
|
|
PRBool inherited = aInherited;
|
|
|
|
if (parentContext && aRuleDetail != eRuleFullReset)
|
|
parentQuotes = parentContext->GetStyleQuotes();
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
quotes = new (mPresContext) nsStyleQuotes(*NS_STATIC_CAST(nsStyleQuotes*, aStartStruct));
|
|
else {
|
|
// XXXldb What about eRuleFullInherited? Which path is faster?
|
|
if (aRuleDetail != eRuleFullMixed && aRuleDetail != eRuleFullReset) {
|
|
// No question. We will have to inherit. Go ahead and init
|
|
// with inherited vals from parent.
|
|
inherited = PR_TRUE;
|
|
if (parentQuotes)
|
|
quotes = new (mPresContext) nsStyleQuotes(*parentQuotes);
|
|
}
|
|
}
|
|
|
|
if (!quotes)
|
|
quotes = new (mPresContext) nsStyleQuotes();
|
|
if (!parentQuotes)
|
|
parentQuotes = quotes;
|
|
|
|
// quotes: [string string]+, none, inherit
|
|
PRUint32 count;
|
|
nsAutoString buffer;
|
|
nsCSSQuotes* ourQuotes = contentData.mQuotes;
|
|
if (ourQuotes) {
|
|
nsAutoString closeBuffer;
|
|
if (eCSSUnit_Inherit == ourQuotes->mOpen.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
count = parentQuotes->QuotesCount();
|
|
if (NS_SUCCEEDED(quotes->AllocateQuotes(count))) {
|
|
while (0 < count--) {
|
|
parentQuotes->GetQuotesAt(count, buffer, closeBuffer);
|
|
quotes->SetQuotesAt(count, buffer, closeBuffer);
|
|
}
|
|
}
|
|
}
|
|
else if (eCSSUnit_None == ourQuotes->mOpen.GetUnit()) {
|
|
quotes->AllocateQuotes(0);
|
|
}
|
|
else if (eCSSUnit_String == ourQuotes->mOpen.GetUnit()) {
|
|
count = 0;
|
|
while (ourQuotes) {
|
|
count++;
|
|
ourQuotes = ourQuotes->mNext;
|
|
}
|
|
if (NS_SUCCEEDED(quotes->AllocateQuotes(count))) {
|
|
count = 0;
|
|
ourQuotes = contentData.mQuotes;
|
|
while (ourQuotes) {
|
|
ourQuotes->mOpen.GetStringValue(buffer);
|
|
ourQuotes->mClose.GetStringValue(closeBuffer);
|
|
Unquote(buffer);
|
|
Unquote(closeBuffer);
|
|
quotes->SetQuotesAt(count++, buffer, closeBuffer);
|
|
ourQuotes = ourQuotes->mNext;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_Quotes, quotes);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mInheritedData)
|
|
aHighestNode->mStyleData.mInheritedData = new (mPresContext) nsInheritedStyleData;
|
|
aHighestNode->mStyleData.mInheritedData->mQuotesData = quotes;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(Quotes), aHighestNode);
|
|
}
|
|
|
|
return quotes;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeXULData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataXUL& xulData = NS_STATIC_CAST(const nsRuleDataXUL&, aData);
|
|
nsStyleXUL* xul = nsnull;
|
|
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
xul = new (mPresContext) nsStyleXUL(*NS_STATIC_CAST(nsStyleXUL*, aStartStruct));
|
|
else
|
|
xul = new (mPresContext) nsStyleXUL();
|
|
|
|
const nsStyleXUL* parentXUL = xul;
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentXUL = parentContext->GetStyleXUL();
|
|
|
|
PRBool inherited = aInherited;
|
|
|
|
// box-align: enum, inherit
|
|
if (eCSSUnit_Enumerated == xulData.mBoxAlign.GetUnit()) {
|
|
xul->mBoxAlign = xulData.mBoxAlign.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == xulData.mBoxAlign.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
xul->mBoxAlign = parentXUL->mBoxAlign;
|
|
}
|
|
|
|
// box-direction: enum, inherit
|
|
if (eCSSUnit_Enumerated == xulData.mBoxDirection.GetUnit()) {
|
|
xul->mBoxDirection = xulData.mBoxDirection.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == xulData.mBoxDirection.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
xul->mBoxDirection = parentXUL->mBoxDirection;
|
|
}
|
|
|
|
// box-flex: factor, inherit
|
|
if (eCSSUnit_Number == xulData.mBoxFlex.GetUnit()) {
|
|
xul->mBoxFlex = xulData.mBoxFlex.GetFloatValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == xulData.mBoxOrient.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
xul->mBoxFlex = parentXUL->mBoxFlex;
|
|
}
|
|
|
|
// box-orient: enum, inherit
|
|
if (eCSSUnit_Enumerated == xulData.mBoxOrient.GetUnit()) {
|
|
xul->mBoxOrient = xulData.mBoxOrient.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == xulData.mBoxOrient.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
xul->mBoxOrient = parentXUL->mBoxOrient;
|
|
}
|
|
|
|
// box-pack: enum, inherit
|
|
if (eCSSUnit_Enumerated == xulData.mBoxPack.GetUnit()) {
|
|
xul->mBoxPack = xulData.mBoxPack.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == xulData.mBoxPack.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
xul->mBoxPack = parentXUL->mBoxPack;
|
|
}
|
|
|
|
// box-ordinal-group: integer
|
|
if (eCSSUnit_Integer == xulData.mBoxOrdinal.GetUnit()) {
|
|
xul->mBoxOrdinal = xulData.mBoxOrdinal.GetIntValue();
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_XUL, xul);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mXULData = xul;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(XUL), aHighestNode);
|
|
}
|
|
|
|
return xul;
|
|
}
|
|
|
|
#ifdef MOZ_SVG
|
|
static void
|
|
SetSVGPaint(const nsCSSValue& aValue, const nsStyleSVGPaint& parentPaint,
|
|
nsIPresContext* aPresContext, nsStyleSVGPaint& aResult, PRBool& aInherited)
|
|
{
|
|
if (aValue.GetUnit() == eCSSUnit_Inherit) {
|
|
aResult = parentPaint;
|
|
aInherited = PR_TRUE;
|
|
} else if (aValue.GetUnit() == eCSSUnit_None) {
|
|
aResult.mType = eStyleSVGPaintType_None;
|
|
} else if (SetColor(aValue, parentPaint.mColor, aPresContext, aResult.mColor, aInherited)) {
|
|
aResult.mType = eStyleSVGPaintType_Color;
|
|
}
|
|
}
|
|
|
|
static void
|
|
SetSVGOpacity(const nsCSSValue& aValue, float parentOpacity, float& opacity, PRBool& aInherited)
|
|
{
|
|
if (aValue.GetUnit() == eCSSUnit_Inherit) {
|
|
opacity = parentOpacity;
|
|
aInherited = PR_TRUE;
|
|
}
|
|
else if (aValue.GetUnit() == eCSSUnit_Number) {
|
|
opacity = aValue.GetFloatValue();
|
|
}
|
|
}
|
|
|
|
static void
|
|
SetSVGLength(const nsCSSValue& aValue, float parentLength, float& length,
|
|
nsStyleContext* aContext, nsIPresContext* aPresContext, PRBool& aInherited)
|
|
{
|
|
nsStyleCoord coord;
|
|
PRBool dummy;
|
|
if (SetCoord(aValue, coord, coord,
|
|
SETCOORD_LP | SETCOORD_FACTOR,
|
|
aContext, aPresContext, dummy)) {
|
|
if (coord.GetUnit() == eStyleUnit_Factor) { // user units
|
|
length = (float) coord.GetFactorValue();
|
|
}
|
|
else {
|
|
length = (float) coord.GetCoordValue();
|
|
float twipsPerPix;
|
|
aPresContext->GetScaledPixelsToTwips(&twipsPerPix);
|
|
if (twipsPerPix == 0.0f)
|
|
twipsPerPix = 1e-20f;
|
|
length /= twipsPerPix;
|
|
}
|
|
}
|
|
else if (aValue.GetUnit() == eCSSUnit_Inherit) {
|
|
length = parentLength;
|
|
aInherited = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeSVGData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataSVG& SVGData = NS_STATIC_CAST(const nsRuleDataSVG&, aData);
|
|
nsStyleSVG* svg = nsnull;
|
|
const nsStyleSVG* parentSVG = nsnull;
|
|
PRBool inherited = aInherited;
|
|
|
|
if (parentContext && aRuleDetail != eRuleFullReset)
|
|
parentSVG = parentContext->GetStyleSVG();
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
svg = new (mPresContext) nsStyleSVG(*NS_STATIC_CAST(nsStyleSVG*, aStartStruct));
|
|
else {
|
|
// XXXldb What about eRuleFullInherited? Which path is faster?
|
|
if (aRuleDetail != eRuleFullMixed && aRuleDetail != eRuleFullReset) {
|
|
// No question. We will have to inherit. Go ahead and init
|
|
// with inherited vals from parent.
|
|
inherited = PR_TRUE;
|
|
if (parentSVG)
|
|
svg = new (mPresContext) nsStyleSVG(*parentSVG);
|
|
}
|
|
}
|
|
|
|
if (!svg)
|
|
svg = new (mPresContext) nsStyleSVG();
|
|
if (!parentSVG)
|
|
parentSVG = svg;
|
|
|
|
// fill:
|
|
SetSVGPaint(SVGData.mFill, parentSVG->mFill, mPresContext, svg->mFill, inherited);
|
|
|
|
// fill-opacity:
|
|
SetSVGOpacity(SVGData.mFillOpacity, parentSVG->mFillOpacity, svg->mFillOpacity, inherited);
|
|
|
|
// fill-rule: enum, inherit
|
|
if (eCSSUnit_Enumerated == SVGData.mFillRule.GetUnit()) {
|
|
svg->mFillRule = SVGData.mFillRule.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == SVGData.mFillRule.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
svg->mFillRule = parentSVG->mFillRule;
|
|
}
|
|
|
|
// pointer-events: enum, inherit
|
|
if (eCSSUnit_Enumerated == SVGData.mPointerEvents.GetUnit()) {
|
|
svg->mPointerEvents = SVGData.mPointerEvents.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == SVGData.mPointerEvents.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
svg->mPointerEvents = parentSVG->mPointerEvents;
|
|
}
|
|
|
|
// shape-rendering: enum, auto, inherit
|
|
if (eCSSUnit_Enumerated == SVGData.mShapeRendering.GetUnit()) {
|
|
svg->mShapeRendering = SVGData.mShapeRendering.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Auto == SVGData.mShapeRendering.GetUnit()) {
|
|
svg->mShapeRendering = NS_STYLE_SHAPE_RENDERING_AUTO;
|
|
}
|
|
else if (eCSSUnit_Inherit == SVGData.mShapeRendering.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
svg->mShapeRendering = parentSVG->mShapeRendering;
|
|
}
|
|
|
|
// stroke:
|
|
SetSVGPaint(SVGData.mStroke, parentSVG->mStroke, mPresContext, svg->mStroke, inherited);
|
|
|
|
// stroke-dasharray: <dasharray>, none, inherit
|
|
if (eCSSUnit_String == SVGData.mStrokeDasharray.GetUnit()) {
|
|
SVGData.mStrokeDasharray.GetStringValue(svg->mStrokeDasharray);
|
|
}
|
|
else if (eCSSUnit_None == SVGData.mStrokeDasharray.GetUnit()) {
|
|
svg->mStrokeDasharray.Truncate();
|
|
}
|
|
else if (eCSSUnit_Inherit == SVGData.mStrokeDasharray.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
svg->mStrokeDasharray = parentSVG->mStrokeDasharray;
|
|
}
|
|
|
|
// stroke-dashoffset: <dashoffset>, inherit
|
|
SetSVGLength(SVGData.mStrokeDashoffset, parentSVG->mStrokeDashoffset,
|
|
svg->mStrokeDashoffset, aContext, mPresContext, inherited);
|
|
|
|
// stroke-linecap: enum, inherit
|
|
if (eCSSUnit_Enumerated == SVGData.mStrokeLinecap.GetUnit()) {
|
|
svg->mStrokeLinecap = SVGData.mStrokeLinecap.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == SVGData.mStrokeLinecap.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
svg->mStrokeLinecap = parentSVG->mStrokeLinecap;
|
|
}
|
|
|
|
// stroke-linejoin: enum, inherit
|
|
if (eCSSUnit_Enumerated == SVGData.mStrokeLinejoin.GetUnit()) {
|
|
svg->mStrokeLinejoin = SVGData.mStrokeLinejoin.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == SVGData.mStrokeLinejoin.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
svg->mStrokeLinejoin = parentSVG->mStrokeLinejoin;
|
|
}
|
|
|
|
// stroke-miterlimit: <miterlimit>, inherit
|
|
if (eCSSUnit_Number == SVGData.mStrokeMiterlimit.GetUnit()) {
|
|
float value = SVGData.mStrokeMiterlimit.GetFloatValue();
|
|
if (value >= 1.0f) { // XXX this check should probably be in nsCSSParser
|
|
svg->mStrokeMiterlimit = value;
|
|
}
|
|
}
|
|
else if (eCSSUnit_Inherit == SVGData.mStrokeMiterlimit.GetUnit()) {
|
|
svg->mStrokeMiterlimit = parentSVG->mStrokeMiterlimit;
|
|
inherited = PR_TRUE;
|
|
}
|
|
|
|
// stroke-opacity:
|
|
SetSVGOpacity(SVGData.mStrokeOpacity, parentSVG->mStrokeOpacity, svg->mStrokeOpacity, inherited);
|
|
|
|
// stroke-width:
|
|
SetSVGLength(SVGData.mStrokeWidth, parentSVG->mStrokeWidth,
|
|
svg->mStrokeWidth, aContext, mPresContext, inherited);
|
|
|
|
// text-anchor: enum, inherit
|
|
if (eCSSUnit_Enumerated == SVGData.mTextAnchor.GetUnit()) {
|
|
svg->mTextAnchor = SVGData.mTextAnchor.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Inherit == SVGData.mTextAnchor.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
svg->mTextAnchor = parentSVG->mTextAnchor;
|
|
}
|
|
|
|
// text-rendering: enum, auto, inherit
|
|
if (eCSSUnit_Enumerated == SVGData.mTextRendering.GetUnit()) {
|
|
svg->mTextRendering = SVGData.mTextRendering.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Auto == SVGData.mTextRendering.GetUnit()) {
|
|
svg->mTextRendering = NS_STYLE_TEXT_RENDERING_AUTO;
|
|
}
|
|
else if (eCSSUnit_Inherit == SVGData.mTextRendering.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
svg->mTextRendering = parentSVG->mTextRendering;
|
|
}
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_SVG, svg);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mInheritedData)
|
|
aHighestNode->mStyleData.mInheritedData = new (mPresContext) nsInheritedStyleData;
|
|
aHighestNode->mStyleData.mInheritedData->mSVGData = svg;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(SVG), aHighestNode);
|
|
}
|
|
|
|
return svg;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::ComputeSVGResetData(nsStyleStruct* aStartStruct,
|
|
const nsRuleDataStruct& aData,
|
|
nsStyleContext* aContext,
|
|
nsRuleNode* aHighestNode,
|
|
const RuleDetail& aRuleDetail, PRBool aInherited)
|
|
{
|
|
nsStyleContext* parentContext = aContext->GetParent();
|
|
|
|
const nsRuleDataSVG& SVGData = NS_STATIC_CAST(const nsRuleDataSVG&, aData);
|
|
nsStyleSVGReset* svgReset = nsnull;
|
|
|
|
if (aStartStruct)
|
|
// We only need to compute the delta between this computed data and our
|
|
// computed data.
|
|
svgReset = new (mPresContext) nsStyleSVGReset(*NS_STATIC_CAST(nsStyleSVGReset*,aStartStruct));
|
|
else
|
|
svgReset = new (mPresContext) nsStyleSVGReset();
|
|
|
|
|
|
const nsStyleSVGReset* parentSVGReset = svgReset;
|
|
if (parentContext &&
|
|
aRuleDetail != eRuleFullReset &&
|
|
aRuleDetail != eRulePartialReset &&
|
|
aRuleDetail != eRuleNone)
|
|
parentSVGReset = parentContext->GetStyleSVGReset();
|
|
|
|
PRBool inherited = aInherited;
|
|
|
|
// dominant-baseline: enum, auto, inherit
|
|
if (eCSSUnit_Enumerated == SVGData.mDominantBaseline.GetUnit()) {
|
|
svgReset->mDominantBaseline = SVGData.mDominantBaseline.GetIntValue();
|
|
}
|
|
else if (eCSSUnit_Auto == SVGData.mDominantBaseline.GetUnit()) {
|
|
svgReset->mDominantBaseline = NS_STYLE_DOMINANT_BASELINE_AUTO;
|
|
}
|
|
else if (eCSSUnit_Inherit == SVGData.mDominantBaseline.GetUnit()) {
|
|
inherited = PR_TRUE;
|
|
svgReset->mDominantBaseline = parentSVGReset->mDominantBaseline;
|
|
}
|
|
|
|
|
|
if (inherited)
|
|
// We inherited, and therefore can't be cached in the rule node. We have to be put right on the
|
|
// style context.
|
|
aContext->SetStyle(eStyleStruct_SVGReset, svgReset);
|
|
else {
|
|
// We were fully specified and can therefore be cached right on the rule node.
|
|
if (!aHighestNode->mStyleData.mResetData)
|
|
aHighestNode->mStyleData.mResetData = new (mPresContext) nsResetStyleData;
|
|
aHighestNode->mStyleData.mResetData->mSVGResetData = svgReset;
|
|
// Propagate the bit down.
|
|
PropagateDependentBit(NS_STYLE_INHERIT_BIT(SVGReset), aHighestNode);
|
|
}
|
|
|
|
return svgReset;
|
|
}
|
|
#endif
|
|
|
|
inline const nsStyleStruct*
|
|
nsRuleNode::GetParentData(const nsStyleStructID aSID)
|
|
{
|
|
// Walk up the rule tree from this rule node (towards less specific
|
|
// rules).
|
|
for (nsRuleNode* ruleNode = mParent; ruleNode; ruleNode = ruleNode->mParent)
|
|
{
|
|
const nsStyleStruct *currStruct = ruleNode->mStyleData.GetStyleData(aSID);
|
|
if (currStruct) {
|
|
// We found a rule with fully specified data. We don't need to go
|
|
// up the tree any further, since the remainder of this branch has
|
|
// already been computed.
|
|
return currStruct;
|
|
}
|
|
NS_ASSERTION(ruleNode->mDependentBits &
|
|
nsCachedStyleData::GetBitForSID(aSID),
|
|
"dependent bits improperly set");
|
|
}
|
|
|
|
NS_NOTREACHED("dependent bits set on root or improperly set");
|
|
return nsnull;
|
|
}
|
|
|
|
const nsStyleStruct*
|
|
nsRuleNode::GetStyleData(nsStyleStructID aSID,
|
|
nsStyleContext* aContext,
|
|
PRBool aComputeData)
|
|
{
|
|
const nsStyleStruct* data = mStyleData.GetStyleData(aSID);
|
|
if (data)
|
|
return data; // We have a fully specified struct. Just return it.
|
|
|
|
if (mDependentBits & nsCachedStyleData::GetBitForSID(aSID)) {
|
|
// We depend on an ancestor for this struct since the cached struct
|
|
// it has is also appropriate for this rule node. Just go up the
|
|
// rule tree and return the first cached struct we find.
|
|
data = GetParentData(aSID);
|
|
if (data)
|
|
return data;
|
|
NS_NOTREACHED("dependent bits set but no cached struct present");
|
|
}
|
|
|
|
if (!aComputeData)
|
|
return nsnull;
|
|
|
|
// Nothing is cached. We'll have to delve further and examine our rules.
|
|
#define STYLE_STRUCT_TEST aSID
|
|
#define STYLE_STRUCT(name, checkdata_cb, ctor_args) \
|
|
data = Get##name##Data(aContext);
|
|
#include "nsStyleStructList.h"
|
|
#undef STYLE_STRUCT
|
|
#undef STYLE_STRUCT_TEST
|
|
|
|
if (data)
|
|
return data;
|
|
|
|
NS_NOTREACHED("could not create style struct");
|
|
// To ensure that |GetStyleData| never returns null (even when we're
|
|
// out of memory), we'll get the style set and get a copy of the
|
|
// default values for the given style struct from the set. Note that
|
|
// this works fine even if |this| is a rule node that has been
|
|
// destroyed (leftover from a previous rule tree) but is somehow still
|
|
// used.
|
|
return mPresContext->PresShell()->StyleSet()->
|
|
DefaultStyleData()->GetStyleData(aSID);
|
|
}
|
|
|
|
void
|
|
nsRuleNode::Mark()
|
|
{
|
|
for (nsRuleNode *node = this;
|
|
node && !(node->mDependentBits & NS_RULE_NODE_GC_MARK);
|
|
node = node->mParent)
|
|
node->mDependentBits |= NS_RULE_NODE_GC_MARK;
|
|
}
|
|
|
|
PR_STATIC_CALLBACK(PLDHashOperator)
|
|
SweepRuleNodeChildren(PLDHashTable *table, PLDHashEntryHdr *hdr,
|
|
PRUint32 number, void *arg)
|
|
{
|
|
ChildrenHashEntry *entry = NS_STATIC_CAST(ChildrenHashEntry*, hdr);
|
|
if (entry->mRuleNode->Sweep())
|
|
return PL_DHASH_REMOVE; // implies NEXT, unless |ed with STOP
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
PRBool
|
|
nsRuleNode::Sweep()
|
|
{
|
|
// If we're not marked, then we have to delete ourself.
|
|
// However, we never allow the root node to GC itself, because nsStyleSet
|
|
// wants to hold onto the root node and not worry about re-creating a
|
|
// rule walker if the root node is deleted.
|
|
if (!(mDependentBits & NS_RULE_NODE_GC_MARK) && !IsRoot()) {
|
|
Destroy();
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// Clear our mark, for the next time around.
|
|
mDependentBits &= ~NS_RULE_NODE_GC_MARK;
|
|
|
|
// Call sweep on the children, since some may not be marked, and
|
|
// remove any deleted children from the child lists.
|
|
if (HaveChildren()) {
|
|
if (ChildrenAreHashed()) {
|
|
PLDHashTable *children = ChildrenHash();
|
|
PL_DHashTableEnumerate(children, SweepRuleNodeChildren, nsnull);
|
|
} else {
|
|
for (nsRuleList **children = ChildrenListPtr(); *children; ) {
|
|
if ((*children)->mRuleNode->Sweep()) {
|
|
// This rule node was destroyed, so remove this entry, and
|
|
// implicitly advance by making *children point to the next
|
|
// entry.
|
|
*children = (*children)->DestroySelf(mPresContext);
|
|
} else {
|
|
// Advance.
|
|
children = &(*children)->mNext;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|