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103 lines
3.8 KiB
C++
103 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* 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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#ifndef nsComposerCommandsUpdater_h__
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#define nsComposerCommandsUpdater_h__
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#include "nsCOMPtr.h" // for already_AddRefed, nsCOMPtr
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#include "nsIDocumentStateListener.h"
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#include "nsISelectionListener.h"
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#include "nsISupportsImpl.h" // for NS_DECL_ISUPPORTS
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#include "nsITimer.h" // for NS_DECL_NSITIMERCALLBACK, etc
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#include "nsITransactionListener.h" // for nsITransactionListener
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#include "nsIWeakReferenceUtils.h" // for nsWeakPtr
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#include "nscore.h" // for NS_IMETHOD, nsresult, etc
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class nsPIDOMWindowOuter;
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class nsITransaction;
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class nsITransactionManager;
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class nsPICommandUpdater;
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class nsComposerCommandsUpdater : public nsISelectionListener,
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public nsIDocumentStateListener,
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public nsITransactionListener,
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public nsITimerCallback
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{
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public:
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nsComposerCommandsUpdater();
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// nsISupports
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NS_DECL_ISUPPORTS
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// nsISelectionListener
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NS_DECL_NSISELECTIONLISTENER
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// nsIDocumentStateListener
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NS_DECL_NSIDOCUMENTSTATELISTENER
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// nsITimerCallback interfaces
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NS_DECL_NSITIMERCALLBACK
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/** nsITransactionListener interfaces
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*/
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NS_IMETHOD WillDo(nsITransactionManager *aManager, nsITransaction *aTransaction, bool *aInterrupt) override;
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NS_IMETHOD DidDo(nsITransactionManager *aManager, nsITransaction *aTransaction, nsresult aDoResult) override;
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NS_IMETHOD WillUndo(nsITransactionManager *aManager, nsITransaction *aTransaction, bool *aInterrupt) override;
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NS_IMETHOD DidUndo(nsITransactionManager *aManager, nsITransaction *aTransaction, nsresult aUndoResult) override;
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NS_IMETHOD WillRedo(nsITransactionManager *aManager, nsITransaction *aTransaction, bool *aInterrupt) override;
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NS_IMETHOD DidRedo(nsITransactionManager *aManager, nsITransaction *aTransaction, nsresult aRedoResult) override;
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NS_IMETHOD WillBeginBatch(nsITransactionManager *aManager, bool *aInterrupt) override;
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NS_IMETHOD DidBeginBatch(nsITransactionManager *aManager, nsresult aResult) override;
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NS_IMETHOD WillEndBatch(nsITransactionManager *aManager, bool *aInterrupt) override;
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NS_IMETHOD DidEndBatch(nsITransactionManager *aManager, nsresult aResult) override;
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NS_IMETHOD WillMerge(nsITransactionManager *aManager, nsITransaction *aTopTransaction,
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nsITransaction *aTransactionToMerge, bool *aInterrupt) override;
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NS_IMETHOD DidMerge(nsITransactionManager *aManager, nsITransaction *aTopTransaction,
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nsITransaction *aTransactionToMerge,
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bool aDidMerge, nsresult aMergeResult) override;
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nsresult Init(nsPIDOMWindowOuter* aDOMWindow);
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protected:
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virtual ~nsComposerCommandsUpdater();
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enum {
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eStateUninitialized = -1,
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eStateOff = false,
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eStateOn = true
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};
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bool SelectionIsCollapsed();
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nsresult UpdateDirtyState(bool aNowDirty);
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nsresult UpdateOneCommand(const char* aCommand);
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nsresult UpdateCommandGroup(const nsAString& aCommandGroup);
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already_AddRefed<nsPICommandUpdater> GetCommandUpdater();
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nsresult PrimeUpdateTimer();
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void TimerCallback();
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nsCOMPtr<nsITimer> mUpdateTimer;
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nsWeakPtr mDOMWindow;
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nsWeakPtr mDocShell;
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int8_t mDirtyState;
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int8_t mSelectionCollapsed;
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bool mFirstDoOfFirstUndo;
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};
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extern "C" nsresult NS_NewComposerCommandsUpdater(nsISelectionListener** aInstancePtrResult);
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#endif // nsComposerCommandsUpdater_h__
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