mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-05 03:54:35 +00:00
113 lines
4.5 KiB
C++
113 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Esben Mose Hansen.
|
|
*
|
|
* Contributor(s):
|
|
* Esben Mose Hansen <esben@oek.dk> (original author)
|
|
* L. David Baron <dbaron@dbaron.org>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
#ifndef nsGenConList_h___
|
|
#define nsGenConList_h___
|
|
|
|
#include "nsIFrame.h"
|
|
#include "nsStyleStruct.h"
|
|
#include "prclist.h"
|
|
#include "nsIDOMCharacterData.h"
|
|
#include "nsCSSPseudoElements.h"
|
|
|
|
struct nsGenConNode : public PRCList {
|
|
// The wrapper frame for all of the pseudo-element's content. This
|
|
// frame generally has useful style data and has the
|
|
// NS_FRAME_GENERATED_CONTENT bit set (so we use it to track removal),
|
|
// but does not necessarily for |nsCounterChangeNode|s.
|
|
nsIFrame* const mPseudoFrame;
|
|
|
|
// Index within the list of things specified by the 'content' property,
|
|
// which is needed to do 'content: open-quote open-quote' correctly,
|
|
// and needed for similar cases for counters.
|
|
const PRInt32 mContentIndex;
|
|
|
|
// null for 'content:no-open-quote', 'content:no-close-quote' and for
|
|
// counter nodes for increments and resets (rather than uses)
|
|
nsCOMPtr<nsIDOMCharacterData> mText;
|
|
|
|
nsGenConNode(nsIFrame* aPseudoFrame, PRInt32 aContentIndex)
|
|
: mPseudoFrame(aPseudoFrame)
|
|
, mContentIndex(aContentIndex)
|
|
{
|
|
NS_ASSERTION(aContentIndex <
|
|
PRInt32(aPseudoFrame->GetStyleContent()->ContentCount()),
|
|
"index out of range");
|
|
// We allow negative values of mContentIndex for 'counter-reset' and
|
|
// 'counter-increment'.
|
|
|
|
NS_ASSERTION(aContentIndex < 0 ||
|
|
aPseudoFrame->GetStyleContext()->GetPseudoType() ==
|
|
nsCSSPseudoElements::before ||
|
|
aPseudoFrame->GetStyleContext()->GetPseudoType() ==
|
|
nsCSSPseudoElements::after,
|
|
"not :before/:after generated content and not counter change");
|
|
NS_ASSERTION(aContentIndex < 0 ||
|
|
aPseudoFrame->GetStateBits() & NS_FRAME_GENERATED_CONTENT,
|
|
"not generated content and not counter change");
|
|
}
|
|
|
|
virtual ~nsGenConNode() {} // XXX Avoid, perhaps?
|
|
};
|
|
|
|
class nsGenConList {
|
|
protected:
|
|
nsGenConNode* mFirstNode;
|
|
PRUint32 mSize;
|
|
public:
|
|
nsGenConList() : mFirstNode(nsnull), mSize(0) {}
|
|
~nsGenConList() { Clear(); }
|
|
void Clear();
|
|
static nsGenConNode* Next(nsGenConNode* aNode) {
|
|
return NS_STATIC_CAST(nsGenConNode*, PR_NEXT_LINK(aNode));
|
|
}
|
|
static nsGenConNode* Prev(nsGenConNode* aNode) {
|
|
return NS_STATIC_CAST(nsGenConNode*, PR_PREV_LINK(aNode));
|
|
}
|
|
void Insert(nsGenConNode* aNode);
|
|
// returns whether any nodes have been destroyed
|
|
PRBool DestroyNodesFor(nsIFrame* aFrame); //destroy all nodes with aFrame as parent
|
|
|
|
// Return true if |aNode1| is after |aNode2|.
|
|
static PRBool NodeAfter(const nsGenConNode* aNode1,
|
|
const nsGenConNode* aNode2);
|
|
|
|
void Remove(nsGenConNode* aNode) { PR_REMOVE_LINK(aNode); mSize--; }
|
|
PRBool IsLast(nsGenConNode* aNode) { return (Next(aNode) == mFirstNode); }
|
|
};
|
|
|
|
#endif /* nsGenConList_h___ */
|