mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
82 lines
3.4 KiB
C++
82 lines
3.4 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 Communicator client code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Original Author: David W. Hyatt (hyatt@netscape.com)
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of 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 ***** */
|
|
|
|
#include "nsRuleData.h"
|
|
#include "nsCSSProps.h"
|
|
|
|
namespace {
|
|
|
|
struct PropertyOffsetInfo {
|
|
// XXX These could probably be pointer-to-member, if the casting can
|
|
// be done correctly.
|
|
size_t struct_offset; // offset of nsRuleDataThing* in nsRuleData
|
|
size_t member_offset; // offset of value in nsRuleDataThing
|
|
};
|
|
|
|
const PropertyOffsetInfo kOffsetTable[eCSSProperty_COUNT_no_shorthands] = {
|
|
#define CSS_PROP_BACKENDONLY(name_, id_, method_, flags_, datastruct_, \
|
|
member_, kwtable_) \
|
|
{ size_t(-1), size_t(-1) },
|
|
#define CSS_PROP(name_, id_, method_, flags_, datastruct_, member_, \
|
|
kwtable_, stylestruct_, stylestructoffset_, animtype_) \
|
|
{ offsetof(nsRuleData, m##datastruct_##Data), \
|
|
offsetof(nsRuleData##datastruct_, member_) },
|
|
#include "nsCSSPropList.h"
|
|
#undef CSS_PROP
|
|
#undef CSS_PROP_BACKENDONLY
|
|
};
|
|
|
|
} // anon namespace
|
|
|
|
nsCSSValue*
|
|
nsRuleData::ValueFor(nsCSSProperty aProperty)
|
|
{
|
|
NS_ABORT_IF_FALSE(aProperty < eCSSProperty_COUNT_no_shorthands,
|
|
"invalid or shorthand property");
|
|
|
|
const PropertyOffsetInfo& offsets = kOffsetTable[aProperty];
|
|
NS_ABORT_IF_FALSE(offsets.struct_offset != size_t(-1),
|
|
"backend-only property");
|
|
|
|
char* cssstruct = *reinterpret_cast<char**>
|
|
(reinterpret_cast<char*>(this) + offsets.struct_offset);
|
|
NS_ABORT_IF_FALSE(cssstruct, "substructure pointer should never be null");
|
|
|
|
return reinterpret_cast<nsCSSValue*>(cssstruct + offsets.member_offset);
|
|
}
|