/* * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) * Copyright (C) 2010 Apple Inc. All rights reserved. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public License * along with this library; see the file COPYING.LIB. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifndef EditingBehavior_h #define EditingBehavior_h #include "EditingBehaviorTypes.h" namespace WebCore { class EditingBehavior { public: explicit EditingBehavior(EditingBehaviorType type) : m_type(type) { } // Individual functions for each case where we have more than one style of editing behavior. // Create a new function for any platform difference so we can control it here. // When extending a selection beyond the top or bottom boundary of an editable area, // maintain the horizontal position on Windows but extend it to the boundary of the editable // content on Mac. bool shouldMoveCaretToHorizontalBoundaryWhenPastTopOrBottom() const { return m_type != EditingWindowsBehavior; } // On Windows, selections should always be considered as directional, regardless if it is // mouse-based or keyboard-based. bool shouldConsiderSelectionAsDirectional() const { return m_type != EditingMacBehavior && m_type != EditingIOSBehavior; } // On Mac, when revealing a selection (for example as a result of a Find operation on the Browser), // content should be scrolled such that the selection gets certer aligned. bool shouldCenterAlignWhenSelectionIsRevealed() const { return m_type == EditingMacBehavior || m_type == EditingIOSBehavior; } // On Mac, style is considered present when present at the beginning of selection. On other platforms, // style has to be present throughout the selection. bool shouldToggleStyleBasedOnStartOfSelection() const { return m_type == EditingMacBehavior || m_type == EditingIOSBehavior; } // Standard Mac behavior when extending to a boundary is grow the selection rather than leaving the base // in place and moving the extent. Matches NSTextView. bool shouldAlwaysGrowSelectionWhenExtendingToBoundary() const { return m_type == EditingMacBehavior || m_type == EditingIOSBehavior; } // On Mac, when processing a contextual click, the object being clicked upon should be selected. bool shouldSelectOnContextualMenuClick() const { return m_type == EditingMacBehavior || m_type == EditingIOSBehavior; } // On Linux, should be able to get and insert spelling suggestions without selecting the misspelled word. bool shouldAllowSpellingSuggestionsWithoutSelection() const { return m_type == EditingUnixBehavior; } // On Mac and Windows, pressing backspace (when it isn't handled otherwise) should navigate back. bool shouldNavigateBackOnBackspace() const { return m_type != EditingUnixBehavior; } // On Mac, selecting backwards by word/line from the middle of a word/line, and then going // forward leaves the caret back in the middle with no selection, instead of directly selecting // to the other end of the line/word (Unix/Windows behavior). bool shouldExtendSelectionByWordOrLineAcrossCaret() const { return m_type != EditingMacBehavior && m_type != EditingIOSBehavior; } // Based on native behavior, when using ctrl(alt)+arrow to move caret by word, ctrl(alt)+left arrow moves caret to // immediately before the word in all platforms, for example, the word break positions are: "|abc |def |hij |opq". // But ctrl+right arrow moves caret to "abc |def |hij |opq" on Windows and "abc| def| hij| opq|" on Mac and Linux. bool shouldSkipSpaceWhenMovingRight() const { return m_type == EditingWindowsBehavior; } // On iOS the last entered character in a secure filed is shown momentarily, removing and adding back the // space when deleting password cause space been showed insecurely. bool shouldRebalanceWhiteSpacesInSecureField() const { return m_type != EditingIOSBehavior; } bool shouldSelectBasedOnDictionaryLookup() const { return m_type == EditingMacBehavior; } // Linux and Windows always extend selections from the extent endpoint. bool shouldAlwaysExtendSelectionFromExtentEndpoint() const { return m_type != EditingMacBehavior && m_type != EditingIOSBehavior; } private: EditingBehaviorType m_type; }; } // namespace WebCore #endif // EditingBehavior_h