зеркало из https://github.com/mozilla/gecko-dev.git
127 строки
2.7 KiB
C++
127 строки
2.7 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* DOM object representing lists of values in DOM computed style */
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#include "nsDOMCSSValueList.h"
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#include "nsCOMPtr.h"
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#include "nsDOMError.h"
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#include "prtypes.h"
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#include "nsContentUtils.h"
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nsDOMCSSValueList::nsDOMCSSValueList(bool aCommaDelimited, bool aReadonly)
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: mCommaDelimited(aCommaDelimited), mReadonly(aReadonly)
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{
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}
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nsDOMCSSValueList::~nsDOMCSSValueList()
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{
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}
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NS_IMPL_ADDREF(nsDOMCSSValueList)
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NS_IMPL_RELEASE(nsDOMCSSValueList)
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DOMCI_DATA(CSSValueList, nsDOMCSSValueList)
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// QueryInterface implementation for nsDOMCSSValueList
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NS_INTERFACE_MAP_BEGIN(nsDOMCSSValueList)
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NS_INTERFACE_MAP_ENTRY(nsIDOMCSSValueList)
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NS_INTERFACE_MAP_ENTRY(nsIDOMCSSValue)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSValueList)
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NS_INTERFACE_MAP_END
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void
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nsDOMCSSValueList::AppendCSSValue(nsIDOMCSSValue* aValue)
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{
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mCSSValues.AppendElement(aValue);
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}
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// nsIDOMCSSValueList
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NS_IMETHODIMP
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nsDOMCSSValueList::GetLength(PRUint32* aLength)
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{
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*aLength = mCSSValues.Length();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMCSSValueList::Item(PRUint32 aIndex, nsIDOMCSSValue **aReturn)
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{
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NS_ENSURE_ARG_POINTER(aReturn);
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NS_IF_ADDREF(*aReturn = GetItemAt(aIndex));
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return NS_OK;
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}
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// nsIDOMCSSValue
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NS_IMETHODIMP
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nsDOMCSSValueList::GetCssText(nsAString& aCssText)
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{
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aCssText.Truncate();
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PRUint32 count = mCSSValues.Length();
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nsAutoString separator;
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if (mCommaDelimited) {
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separator.AssignLiteral(", ");
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}
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else {
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separator.Assign(PRUnichar(' '));
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}
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nsCOMPtr<nsIDOMCSSValue> cssValue;
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nsAutoString tmpStr;
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for (PRUint32 i = 0; i < count; ++i) {
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cssValue = mCSSValues[i];
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NS_ASSERTION(cssValue, "Eek! Someone filled the value list with null CSSValues!");
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if (cssValue) {
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cssValue->GetCssText(tmpStr);
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if (tmpStr.IsEmpty()) {
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#ifdef DEBUG_caillon
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NS_ERROR("Eek! An empty CSSValue! Bad!");
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#endif
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continue;
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}
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// If this isn't the first item in the list, then
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// it's ok to append a separator.
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if (!aCssText.IsEmpty()) {
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aCssText.Append(separator);
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}
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aCssText.Append(tmpStr);
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMCSSValueList::SetCssText(const nsAString& aCssText)
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{
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if (mReadonly) {
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return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
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}
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NS_NOTYETIMPLEMENTED("Can't SetCssText yet: please write me!");
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMCSSValueList::GetCssValueType(PRUint16* aValueType)
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{
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NS_ENSURE_ARG_POINTER(aValueType);
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*aValueType = nsIDOMCSSValue::CSS_VALUE_LIST;
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return NS_OK;
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}
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