1 /* 2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) 3 * Copyright (C) 2010 Apple Inc. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21 #ifndef EditingBehavior_h 22 #define EditingBehavior_h 23 24 #include "EditingBehaviorTypes.h" 25 26 namespace WebCore { 27 28 class EditingBehavior { 29 30 public: EditingBehavior(EditingBehaviorType type)31 EditingBehavior(EditingBehaviorType type) 32 : m_type(type) 33 { 34 } 35 36 // Individual functions for each case where we have more than one style of editing behavior. 37 // Create a new function for any platform difference so we can control it here. 38 39 // When extending a selection beyond the top or bottom boundary of an editable area, 40 // maintain the horizontal position on Windows but extend it to the boundary of the editable 41 // content on Mac. shouldMoveCaretToHorizontalBoundaryWhenPastTopOrBottom()42 bool shouldMoveCaretToHorizontalBoundaryWhenPastTopOrBottom() const { return m_type != EditingWindowsBehavior; } 43 44 // On Windows, selections should always be considered as directional, regardless if it is 45 // mouse-based or keyboard-based. shouldConsiderSelectionAsDirectional()46 bool shouldConsiderSelectionAsDirectional() const { return m_type != EditingMacBehavior; } 47 48 // On Mac, when revealing a selection (for example as a result of a Find operation on the Browser), 49 // content should be scrolled such that the selection gets certer aligned. shouldCenterAlignWhenSelectionIsRevealed()50 bool shouldCenterAlignWhenSelectionIsRevealed() const { return m_type == EditingMacBehavior; } 51 52 // On Mac, style is considered present when present at the beginning of selection. On other platforms, 53 // style has to be present throughout the selection. shouldToggleStyleBasedOnStartOfSelection()54 bool shouldToggleStyleBasedOnStartOfSelection() const { return m_type == EditingMacBehavior; } 55 56 // Standard Mac behavior when extending to a boundary is grow the selection rather than leaving the base 57 // in place and moving the extent. Matches NSTextView. shouldAlwaysGrowSelectionWhenExtendingToBoundary()58 bool shouldAlwaysGrowSelectionWhenExtendingToBoundary() const { return m_type == EditingMacBehavior; } 59 60 // On Mac, when processing a contextual click, the object being clicked upon should be selected. shouldSelectOnContextualMenuClick()61 bool shouldSelectOnContextualMenuClick() const { return m_type == EditingMacBehavior; } 62 63 private: 64 EditingBehaviorType m_type; 65 }; 66 67 } // namespace WebCore 68 69 #endif // EditingBehavior_h 70