зеркало из https://github.com/mozilla/gecko-dev.git
95 строки
2.6 KiB
C++
95 строки
2.6 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 mozilla_ComposerCommandsUpdater_h
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#define mozilla_ComposerCommandsUpdater_h
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#include "nsCOMPtr.h" // for already_AddRefed, nsCOMPtr
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#include "nsCycleCollectionParticipant.h"
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#include "nsIDocumentStateListener.h"
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#include "nsINamed.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 nsIDocShell;
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class nsITransaction;
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class nsITransactionManager;
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class nsPIDOMWindowOuter;
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class nsPICommandUpdater;
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namespace mozilla {
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class ComposerCommandsUpdater final : public nsIDocumentStateListener
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, public nsITransactionListener
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, public nsITimerCallback
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, public nsINamed
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{
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public:
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ComposerCommandsUpdater();
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// nsISupports
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(ComposerCommandsUpdater,
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nsIDocumentStateListener)
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// nsIDocumentStateListener
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NS_DECL_NSIDOCUMENTSTATELISTENER
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// nsITimerCallback
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NS_DECL_NSITIMERCALLBACK
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// nsINamed
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NS_DECL_NSINAMED
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// nsITransactionListener
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NS_DECL_NSITRANSACTIONLISTENER
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nsresult Init(nsPIDOMWindowOuter* aDOMWindow);
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/**
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* OnSelectionChange() is called when selection is changed in the editor.
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*/
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void OnSelectionChange()
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{
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PrimeUpdateTimer();
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}
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protected:
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virtual ~ComposerCommandsUpdater();
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enum
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{
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eStateUninitialized = -1,
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eStateOff = 0,
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eStateOn = 1,
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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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nsCOMPtr<nsPIDOMWindowOuter> mDOMWindow;
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nsCOMPtr<nsIDocShell> 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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} // namespace mozilla
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#endif // #ifndef mozilla_ComposerCommandsUpdater_h
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