editing_behavior.cc | Explore in Territory

/*
 * Copyright (C) 2006, 2007 Apple, Inc.  All rights reserved.
 * Copyright (C) 2012 Google, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "third_party/blink/renderer/core/editing/editing_behavior.h"

#include "build/build_config.h"
#include "third_party/blink/public/common/input/web_input_event.h"
#include "third_party/blink/public/web/web_settings.h"
#include "third_party/blink/renderer/core/events/keyboard_event.h"
#include "third_party/blink/renderer/platform/keyboard_codes.h"
#include "third_party/blink/renderer/platform/text/writing_mode_utils.h"

namespace blink {

namespace {

//
// The below code was adapted from the WebKit file webview.cpp
//

const unsigned kCtrlKey = …;
const unsigned kAltKey = …;
const unsigned kShiftKey = …;
const unsigned kMetaKey = …;
#if BUILDFLAG(IS_MAC)
// Aliases for the generic key defintions to make kbd shortcuts definitions more
// readable on OS X.
const unsigned kOptionKey = kAltKey;

// Do not use this constant for anything but cursor movement commands. Keys
// with cmd set have their |isSystemKey| bit set, so chances are the shortcut
// will not be executed. Another, less important, reason is that shortcuts
// defined in the layoutObject do not blink the menu item that they triggered.
// See http://crbug.com/25856 and the bugs linked from there for details.
const unsigned kCommandKey = kMetaKey;
#endif

// Keys with special meaning. These will be delegated to the editor using
// the execCommand() method
struct KeyboardCodeKeyDownEntry { … };

struct KeyboardCodeKeyPressEntry { … };

// DomKey has a broader range than KeyboardCode, we need DomKey to handle some
// special keys.
// Note: We cannot use DomKey for printable keys since it may vary based on
// locale.
struct DomKeyKeyDownEntry { … };

#if BUILDFLAG(IS_MAC)
#define OPTION_OR_CTRL_KEY …
#else
#define OPTION_OR_CTRL_KEY …
#endif

// Key bindings with command key on Mac and alt key on other platforms are
// marked as system key events and will be ignored (with the exception
// of Command-B and Command-I) so they shouldn't be added here.
const KeyboardCodeKeyDownEntry kKeyboardCodeKeyDownEntries[] = …;

const KeyboardCodeKeyPressEntry kKeyboardCodeKeyPressEntries[] = …;

const DomKeyKeyDownEntry kDomKeyKeyDownEntries[] = …;

#undef OPTION_OR_CTRL_KEY

const char* LookupCommandNameFromDomKeyKeyDown(const String& key,
                                               unsigned modifiers) { … }

const int kVkeyForwardChar = …;
const int kVkeyBackwardChar = …;
const int kVkeyNextLine = …;
const int kVkeyPreviousLine = …;

int TransposeArrowKey(int key_code, WritingMode writing_mode) { … }

}  // anonymous namespace

const char* EditingBehavior::InterpretKeyEvent(const KeyboardEvent& event,
                                               WritingMode writing_mode) const { … }

bool EditingBehavior::ShouldInsertCharacter(const KeyboardEvent& event) const { … }

}  // namespace blink
chromium/third_party/blink/renderer/core/editing/editing_behavior.cc
