182 lines
4.9 KiB
C++
182 lines
4.9 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: MPL 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 Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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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.org 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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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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 MPL, 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 MPL, 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 "nsHTMLValue.h"
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#include "nsString.h"
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#include "nsReadableUtils.h"
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#include "nsUnicharUtils.h"
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#include "nsCRT.h"
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#include "nsMemory.h"
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#include "nsIDocument.h"
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#include "nsIHTMLDocument.h"
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#include "nsUnitConversion.h"
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#include "prprf.h"
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#include "nsICSSStyleRule.h"
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#include "nsCSSDeclaration.h"
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nsHTMLValue::nsHTMLValue()
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: mUnit(eHTMLUnit_String)
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{
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mValue.mString = nsnull;
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}
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nsHTMLValue::nsHTMLValue(PRInt32 aValue, nsHTMLUnit aUnit)
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: mUnit(aUnit)
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{
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NS_ASSERTION(GetUnitClass() == HTMLUNIT_INTEGER, "unit not an integer unit");
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if (GetUnitClass() == HTMLUNIT_INTEGER) {
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mValue.mInt = aValue;
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} else {
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mUnit = eHTMLUnit_String;
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mValue.mString = nsnull;
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}
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}
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nsHTMLValue::~nsHTMLValue(void)
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{
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Reset();
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}
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void nsHTMLValue::Reset(void)
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{
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if (GetUnitClass() == HTMLUNIT_STRING) {
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if (mValue.mString) {
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nsCheapStringBufferUtils::Free(mValue.mString);
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}
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}
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else if (mUnit == eHTMLUnit_CSSStyleRule) {
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NS_IF_RELEASE(mValue.mCSSStyleRule);
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}
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else if (mUnit == eHTMLUnit_AtomArray) {
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delete mValue.mAtomArray;
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}
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mUnit = eHTMLUnit_String;
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mValue.mString = nsnull;
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}
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void nsHTMLValue::SetIntValue(PRInt32 aValue, nsHTMLUnit aUnit)
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{
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Reset();
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mUnit = aUnit;
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NS_ASSERTION(GetUnitClass() == HTMLUNIT_INTEGER, "not an int value");
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if (GetUnitClass() == HTMLUNIT_INTEGER) {
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mValue.mInt = aValue;
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} else {
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mUnit = eHTMLUnit_String;
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mValue.mString = nsnull;
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}
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}
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void nsHTMLValue::SetPercentValue(float aValue)
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{
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Reset();
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mUnit = eHTMLUnit_Percent;
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mValue.mFloat = aValue;
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}
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void nsHTMLValue::SetStringValueInternal(const nsAString& aValue,
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nsHTMLUnit aUnit)
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{
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NS_ASSERTION(GetUnitClass() == HTMLUNIT_STRING, "unit not a string unit!");
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if (GetUnitClass() == HTMLUNIT_STRING) {
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// Remember the length of the string if necessary
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if (aValue.IsEmpty()) {
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mValue.mString = nsnull;
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} else {
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nsCheapStringBufferUtils::CopyToBuffer(mValue.mString, aValue);
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}
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} else {
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mUnit = eHTMLUnit_String;
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mValue.mString = nsnull;
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}
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}
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void nsHTMLValue::SetStringValue(const nsAString& aValue,
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nsHTMLUnit aUnit)
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{
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Reset();
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mUnit = aUnit;
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SetStringValueInternal(aValue, aUnit);
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}
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void nsHTMLValue::SetCSSStyleRuleValue(nsICSSStyleRule* aValue)
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{
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Reset();
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mUnit = eHTMLUnit_CSSStyleRule;
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mValue.mCSSStyleRule = aValue;
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NS_IF_ADDREF(mValue.mCSSStyleRule);
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}
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void nsHTMLValue::SetAtomArrayValue(nsCOMArray<nsIAtom>* aValue)
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{
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Reset();
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mUnit = eHTMLUnit_AtomArray;
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mValue.mAtomArray = aValue;
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}
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void nsHTMLValue::SetColorValue(nscolor aValue)
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{
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Reset();
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mUnit = eHTMLUnit_Color;
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mValue.mColor = aValue;
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}
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//
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// Parsing methods
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//
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PRBool
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nsHTMLValue::EnumValueToString(const EnumTable* aTable,
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nsAString& aResult) const
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{
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if (GetUnit() == eHTMLUnit_Enumerated) {
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PRInt32 v = GetIntValue();
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while (aTable->tag) {
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if (aTable->value == v) {
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CopyASCIItoUCS2(nsDependentCString(aTable->tag), aResult);
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return PR_TRUE;
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}
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aTable++;
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}
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}
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aResult.Truncate();
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return PR_FALSE;
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}
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