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/* -*- 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 nsComposerCommandsUpdater_h__
#define nsComposerCommandsUpdater_h__
#include "nsCOMPtr.h" // for already_AddRefed, nsCOMPtr
#include "nsIDocumentStateListener.h"
#include "nsISelectionListener.h"
#include "nsISupportsImpl.h" // for NS_DECL_ISUPPORTS
#include "nsITimer.h" // for NS_DECL_NSITIMERCALLBACK, etc
#include "nsITransactionListener.h" // for nsITransactionListener
#include "nsIWeakReferenceUtils.h" // for nsWeakPtr
#include "nscore.h" // for NS_IMETHOD, nsresult, etc
class nsPIDOMWindowOuter;
class nsITransaction;
class nsITransactionManager;
class nsPICommandUpdater;
class nsComposerCommandsUpdater : public nsISelectionListener,
public nsIDocumentStateListener,
public nsITransactionListener,
public nsITimerCallback
{
public:
nsComposerCommandsUpdater();
// nsISupports
NS_DECL_ISUPPORTS
// nsISelectionListener
NS_DECL_NSISELECTIONLISTENER
// nsIDocumentStateListener
NS_DECL_NSIDOCUMENTSTATELISTENER
// nsITimerCallback interfaces
NS_DECL_NSITIMERCALLBACK
/** nsITransactionListener interfaces
*/
NS_IMETHOD WillDo(nsITransactionManager *aManager, nsITransaction *aTransaction, bool *aInterrupt) override;
NS_IMETHOD DidDo(nsITransactionManager *aManager, nsITransaction *aTransaction, nsresult aDoResult) override;
NS_IMETHOD WillUndo(nsITransactionManager *aManager, nsITransaction *aTransaction, bool *aInterrupt) override;
NS_IMETHOD DidUndo(nsITransactionManager *aManager, nsITransaction *aTransaction, nsresult aUndoResult) override;
NS_IMETHOD WillRedo(nsITransactionManager *aManager, nsITransaction *aTransaction, bool *aInterrupt) override;
NS_IMETHOD DidRedo(nsITransactionManager *aManager, nsITransaction *aTransaction, nsresult aRedoResult) override;
NS_IMETHOD WillBeginBatch(nsITransactionManager *aManager, bool *aInterrupt) override;
NS_IMETHOD DidBeginBatch(nsITransactionManager *aManager, nsresult aResult) override;
NS_IMETHOD WillEndBatch(nsITransactionManager *aManager, bool *aInterrupt) override;
NS_IMETHOD DidEndBatch(nsITransactionManager *aManager, nsresult aResult) override;
NS_IMETHOD WillMerge(nsITransactionManager *aManager, nsITransaction *aTopTransaction,
nsITransaction *aTransactionToMerge, bool *aInterrupt) override;
NS_IMETHOD DidMerge(nsITransactionManager *aManager, nsITransaction *aTopTransaction,
nsITransaction *aTransactionToMerge,
bool aDidMerge, nsresult aMergeResult) override;
nsresult Init(nsPIDOMWindowOuter* aDOMWindow);
protected:
virtual ~nsComposerCommandsUpdater();
enum {
eStateUninitialized = -1,
eStateOff = false,
eStateOn = true
};
bool SelectionIsCollapsed();
nsresult UpdateDirtyState(bool aNowDirty);
nsresult UpdateOneCommand(const char* aCommand);
nsresult UpdateCommandGroup(const nsAString& aCommandGroup);
already_AddRefed<nsPICommandUpdater> GetCommandUpdater();
nsresult PrimeUpdateTimer();
void TimerCallback();
nsCOMPtr<nsITimer> mUpdateTimer;
nsWeakPtr mDOMWindow;
nsWeakPtr mDocShell;
int8_t mDirtyState;
int8_t mSelectionCollapsed;
bool mFirstDoOfFirstUndo;
};
extern "C" nsresult NS_NewComposerCommandsUpdater(nsISelectionListener** aInstancePtrResult);
#endif // nsComposerCommandsUpdater_h__
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