1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef mozilla_AutoCopyListener_h 8 #define mozilla_AutoCopyListener_h 9 10 #include "mozilla/Attributes.h" 11 #include "mozilla/dom/Selection.h" 12 #include "mozilla/StaticPrefs_clipboard.h" 13 #include "nsIClipboard.h" 14 15 namespace mozilla { 16 17 class AutoCopyListener final { 18 public: 19 /** 20 * OnSelectionChange() is called when a Selection whose NotifyAutoCopy() was 21 * called is changed. 22 * 23 * @param aDocument The document of the Selection. May be nullptr. 24 * @param aSelection The selection. 25 * @param aReason The reasons of the change. 26 * See nsISelectionListener::*_REASON. 27 */ 28 static void OnSelectionChange(dom::Document* aDocument, 29 dom::Selection& aSelection, int16_t aReason); 30 31 /** 32 * Init() initializes all static members of this class. Should be called 33 * only once. 34 */ Init(int16_t aClipboardID)35 static void Init(int16_t aClipboardID) { 36 MOZ_ASSERT(IsValidClipboardID(aClipboardID)); 37 static bool sInitialized = false; 38 if (!sInitialized && IsValidClipboardID(aClipboardID)) { 39 sClipboardID = aClipboardID; 40 sInitialized = true; 41 } 42 } 43 44 /** 45 * IsPrefEnabled() returns true if the pref enables auto-copy feature. 46 */ IsPrefEnabled()47 static bool IsPrefEnabled() { return StaticPrefs::clipboard_autocopy(); } 48 49 private: IsValidClipboardID(int16_t aClipboardID)50 static bool IsValidClipboardID(int16_t aClipboardID) { 51 return aClipboardID >= nsIClipboard::kSelectionClipboard && 52 aClipboardID <= nsIClipboard::kSelectionCache; 53 } 54 55 static int16_t sClipboardID; 56 }; 57 58 } // namespace mozilla 59 60 #endif // #ifndef mozilla_AutoCopyListener_h 61