tenfourfox/editor/libeditor/TypeInState.h

100 lines
3.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#ifndef TypeInState_h__
#define TypeInState_h__
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsISelectionListener.h"
#include "nsISupportsImpl.h"
#include "nsString.h"
#include "nsTArray.h"
#include "nscore.h"
class nsIAtom;
class nsIDOMNode;
namespace mozilla {
namespace dom {
class Selection;
} // namespace dom
} // namespace mozilla
struct PropItem
{
nsIAtom *tag;
nsString attr;
nsString value;
PropItem();
PropItem(nsIAtom *aTag, const nsAString &aAttr, const nsAString &aValue);
~PropItem();
};
class TypeInState : public nsISelectionListener
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS(TypeInState)
TypeInState();
void Reset();
nsresult UpdateSelState(mozilla::dom::Selection* aSelection);
// nsISelectionListener
NS_DECL_NSISELECTIONLISTENER
void SetProp(nsIAtom* aProp, const nsAString& aAttr, const nsAString& aValue);
void ClearAllProps();
void ClearProp(nsIAtom* aProp, const nsAString& aAttr);
//**************************************************************************
// TakeClearProperty: hands back next property item on the clear list.
// caller assumes ownership of PropItem and must delete it.
PropItem* TakeClearProperty();
//**************************************************************************
// TakeSetProperty: hands back next property item on the set list.
// caller assumes ownership of PropItem and must delete it.
PropItem* TakeSetProperty();
//**************************************************************************
// TakeRelativeFontSize: hands back relative font value, which is then
// cleared out.
int32_t TakeRelativeFontSize();
void GetTypingState(bool &isSet, bool &theSetting, nsIAtom *aProp);
void GetTypingState(bool &isSet, bool &theSetting, nsIAtom *aProp,
const nsString &aAttr, nsString* outValue);
static bool FindPropInList(nsIAtom *aProp, const nsAString &aAttr, nsAString *outValue, nsTArray<PropItem*> &aList, int32_t &outIndex);
protected:
virtual ~TypeInState();
void RemovePropFromSetList(nsIAtom* aProp, const nsAString& aAttr);
void RemovePropFromClearedList(nsIAtom* aProp, const nsAString& aAttr);
bool IsPropSet(nsIAtom* aProp, const nsAString& aAttr, nsAString* outValue);
bool IsPropSet(nsIAtom* aProp, const nsAString& aAttr, nsAString* outValue, int32_t& outIndex);
bool IsPropCleared(nsIAtom* aProp, const nsAString& aAttr);
bool IsPropCleared(nsIAtom* aProp, const nsAString& aAttr, int32_t& outIndex);
nsTArray<PropItem*> mSetArray;
nsTArray<PropItem*> mClearedArray;
int32_t mRelativeFontSize;
nsCOMPtr<nsIDOMNode> mLastSelectionContainer;
int32_t mLastSelectionOffset;
friend class nsHTMLEditRules;
};
#endif // TypeInState_h__