gecko-dev/layout/style/nsDOMCSSValueList.h
2012-05-21 12:12:37 +01:00

71 lines
1.9 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* DOM object representing lists of values in DOM computed style */
#ifndef nsDOMCSSValueList_h___
#define nsDOMCSSValueList_h___
#include "nsIDOMCSSValue.h"
#include "nsIDOMCSSValueList.h"
#include "nsTArray.h"
#include "nsCOMPtr.h"
class nsDOMCSSValueList : public nsIDOMCSSValueList
{
public:
NS_DECL_ISUPPORTS
// nsIDOMCSSValueList
NS_DECL_NSIDOMCSSVALUELIST
// nsIDOMCSSValue
NS_DECL_NSIDOMCSSVALUE
// nsDOMCSSValueList
nsDOMCSSValueList(bool aCommaDelimited, bool aReadonly);
virtual ~nsDOMCSSValueList();
/**
* Adds a value to this list.
*/
void AppendCSSValue(nsIDOMCSSValue* aValue);
nsIDOMCSSValue* GetItemAt(PRUint32 aIndex)
{
return mCSSValues.SafeElementAt(aIndex, nsnull);
}
static nsDOMCSSValueList* FromSupports(nsISupports* aSupports)
{
#ifdef DEBUG
{
nsCOMPtr<nsIDOMCSSValueList> list_qi = do_QueryInterface(aSupports);
// If this assertion fires the QI implementation for the object in
// question doesn't use the nsIDOMCSSValueList pointer as the nsISupports
// pointer. That must be fixed, or we'll crash...
NS_ASSERTION(list_qi == static_cast<nsIDOMCSSValueList*>(aSupports),
"Uh, fix QI!");
}
#endif
return static_cast<nsDOMCSSValueList*>(aSupports);
}
private:
bool mCommaDelimited; // some value lists use a comma
// as the delimiter, some just use
// spaces.
bool mReadonly; // Are we read-only?
InfallibleTArray<nsCOMPtr<nsIDOMCSSValue> > mCSSValues;
};
#endif /* nsDOMCSSValueList_h___ */