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Diffstat (limited to '')
-rw-r--r-- | layout/generic/AutoCopyListener.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/layout/generic/AutoCopyListener.h b/layout/generic/AutoCopyListener.h new file mode 100644 index 0000000000..acb0aaa46d --- /dev/null +++ b/layout/generic/AutoCopyListener.h @@ -0,0 +1,60 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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 mozilla_AutoCopyListener_h +#define mozilla_AutoCopyListener_h + +#include "mozilla/Attributes.h" +#include "mozilla/dom/Selection.h" +#include "mozilla/StaticPrefs_clipboard.h" +#include "nsIClipboard.h" + +namespace mozilla { + +class AutoCopyListener final { + public: + /** + * OnSelectionChange() is called when a Selection whose NotifyAutoCopy() was + * called is changed. + * + * @param aDocument The document of the Selection. May be nullptr. + * @param aSelection The selection. + * @param aReason The reasons of the change. + * See nsISelectionListener::*_REASON. + */ + static void OnSelectionChange(dom::Document* aDocument, + dom::Selection& aSelection, int16_t aReason); + + /** + * Init() initializes all static members of this class. Should be called + * only once. + */ + static void Init(int16_t aClipboardID) { + MOZ_ASSERT(IsValidClipboardID(aClipboardID)); + static bool sInitialized = false; + if (!sInitialized && IsValidClipboardID(aClipboardID)) { + sClipboardID = aClipboardID; + sInitialized = true; + } + } + + /** + * IsPrefEnabled() returns true if the pref enables auto-copy feature. + */ + static bool IsPrefEnabled() { return StaticPrefs::clipboard_autocopy(); } + + private: + static bool IsValidClipboardID(int16_t aClipboardID) { + return aClipboardID >= nsIClipboard::kSelectionClipboard && + aClipboardID <= nsIClipboard::kSelectionCache; + } + + static int16_t sClipboardID; +}; + +} // namespace mozilla + +#endif // #ifndef mozilla_AutoCopyListener_h |