зеркало из https://github.com/mozilla/gecko-dev.git
68 строки
1.9 KiB
C++
68 строки
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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_AutoCopyListener_h
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#define mozilla_AutoCopyListener_h
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/Selection.h"
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#include "mozilla/StaticPrefs.h"
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#include "nsIClipboard.h"
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namespace mozilla {
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class AutoCopyListener final
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{
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public:
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/**
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* OnSelectionChange() is called when a Selection whose NotifyAutoCopy() was
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* called is changed.
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*
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* @param aDocument The document of the Selection. May be nullptr.
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* @param aSelection The selection.
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* @param aReason The reasons of the change.
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* See nsISelectionListener::*_REASON.
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*/
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static void OnSelectionChange(nsIDocument* aDocument,
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dom::Selection& aSelection,
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int16_t aReason);
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/**
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* Init() initializes all static members of this class. Should be called
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* only once.
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*/
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static void Init(int16_t aClipboardID)
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{
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MOZ_ASSERT(IsValidClipboardID(aClipboardID));
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static bool sInitialized = false;
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if (!sInitialized && IsValidClipboardID(aClipboardID)) {
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sClipboardID = aClipboardID;
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sInitialized = true;
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}
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}
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/**
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* IsPrefEnabled() returns true if the pref enables auto-copy feature.
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*/
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static bool IsPrefEnabled()
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{
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return StaticPrefs::clipboard_autocopy();
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}
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private:
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static bool IsValidClipboardID(int16_t aClipboardID)
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{
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return aClipboardID >= nsIClipboard::kSelectionClipboard &&
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aClipboardID <= nsIClipboard::kSelectionCache;
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}
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static int16_t sClipboardID;
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};
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} // namespace mozilla
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#endif // #ifndef mozilla_AutoCopyListener_h
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