widget/EventForwards.h
author Masayuki Nakano <masayuki@d-toybox.com>
Mon, 07 Jan 2019 10:10:57 +0000
changeset 512678 cd0f006ea4b311f6223c6d151f09aa9758c7ad92
parent 508163 6f3709b3878117466168c40affa7bca0b60cf75b
child 520725 7eae0724c0aa291d7439cb64dc851e0026cdebe2
permissions -rw-r--r--
Bug 1447239 - Implement InputEvent.inputType r=smaug This patch implements InputType.inputType which is declared by Input Events. The attribute has already been implemented by Chrome and Safari. Chrome implements Input Events Level 1, but Safari implements Input Events Level 2. Difference between them is only whether it supports "insertFromComposition", "deleteByComposition" and "deleteCompositionText". This patch makes the level switchable with pref and takes Level 1 by default because Level 2 is still unstable around event order with composition events. For reducing string copy cost at dispatching "input" event, this patch makes EditorInternalInputEvent store valid input-type as enum class, EditorInputType and resolves it to string value when dom::InputEvent::GetInputType() is called. Note that the reason why this patch names the enum class as EditorInputType is, there is InputType enum class already for avoiding conflict the name, this appends "Editor" prefix because "input" and "beforeinput" events are fired only when an editor has focus. Differential Revision: https://phabricator.services.mozilla.com/D14128

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_EventForwards_h__
#define mozilla_EventForwards_h__

#include <stdint.h>

#include "nsStringFwd.h"
#include "nsTArray.h"

/**
 * XXX Following enums should be in BasicEvents.h.  However, currently, it's
 *     impossible to use foward delearation for enum.
 */

/**
 * Return status for event processors.
 */
enum nsEventStatus {
  // The event is ignored, do default processing
  nsEventStatus_eIgnore,
  // The event is consumed, don't do default processing
  nsEventStatus_eConsumeNoDefault,
  // The event is consumed, but do default processing
  nsEventStatus_eConsumeDoDefault,
  // Value is not for use, only for serialization
  nsEventStatus_eSentinel
};

namespace mozilla {

enum class CanBubble { eYes, eNo };

enum class Cancelable { eYes, eNo };

enum class ChromeOnlyDispatch { eYes, eNo };

enum class Trusted { eYes, eNo };

enum class Composed { eYes, eNo, eDefault };

/**
 * Event messages
 */

typedef uint16_t EventMessageType;

enum EventMessage : EventMessageType {

#define NS_EVENT_MESSAGE(aMessage) aMessage,
#define NS_EVENT_MESSAGE_FIRST_LAST(aMessage, aFirst, aLast) \
  aMessage##First = aFirst, aMessage##Last = aLast,

#include "mozilla/EventMessageList.h"

#undef NS_EVENT_MESSAGE
#undef NS_EVENT_MESSAGE_FIRST_LAST

  // For preventing bustage due to "," after the last item.
  eEventMessage_MaxValue
};

const char* ToChar(EventMessage aEventMessage);

/**
 * Event class IDs
 */

typedef uint8_t EventClassIDType;

enum EventClassID : EventClassIDType {
// The event class name will be:
//   eBasicEventClass for WidgetEvent
//   eFooEventClass for WidgetFooEvent or InternalFooEvent
#define NS_ROOT_EVENT_CLASS(aPrefix, aName) eBasic##aName##Class
#define NS_EVENT_CLASS(aPrefix, aName) , e##aName##Class

#include "mozilla/EventClassList.h"

#undef NS_EVENT_CLASS
#undef NS_ROOT_EVENT_CLASS
};

const char* ToChar(EventClassID aEventClassID);

typedef uint16_t Modifiers;

#define NS_DEFINE_KEYNAME(aCPPName, aDOMKeyName) KEY_NAME_INDEX_##aCPPName,

typedef uint16_t KeyNameIndexType;
enum KeyNameIndex : KeyNameIndexType {
#include "mozilla/KeyNameList.h"
  // If a DOM keyboard event is synthesized by script, this is used.  Then,
  // specified key name should be stored and use it as .key value.
  KEY_NAME_INDEX_USE_STRING
};

#undef NS_DEFINE_KEYNAME

const nsCString ToString(KeyNameIndex aKeyNameIndex);

#define NS_DEFINE_PHYSICAL_KEY_CODE_NAME(aCPPName, aDOMCodeName) \
  CODE_NAME_INDEX_##aCPPName,

typedef uint8_t CodeNameIndexType;
enum CodeNameIndex : CodeNameIndexType {
#include "mozilla/PhysicalKeyCodeNameList.h"
  // If a DOM keyboard event is synthesized by script, this is used.  Then,
  // specified code name should be stored and use it as .code value.
  CODE_NAME_INDEX_USE_STRING
};

#undef NS_DEFINE_PHYSICAL_KEY_CODE_NAME

const nsCString ToString(CodeNameIndex aCodeNameIndex);

#define NS_DEFINE_INPUTTYPE(aCPPName, aDOMName) e##aCPPName,

typedef uint8_t EditorInputTypeType;
enum class EditorInputType : EditorInputTypeType {
#include "mozilla/InputTypeList.h"
  // If a DOM input event is synthesized by script, this is used.  Then,
  // specified input type should be stored as string and use it as .inputType
  // value.
  eUnknown,
};

#undef NS_DEFINE_INPUTTYPE

#define NS_DEFINE_COMMAND(aName, aCommandStr) , Command##aName
#define NS_DEFINE_COMMAND_NO_EXEC_COMMAND(aName) , Command##aName

typedef int8_t CommandInt;
enum Command : CommandInt {
  CommandDoNothing

#include "mozilla/CommandList.h"
};
#undef NS_DEFINE_COMMAND
#undef NS_DEFINE_COMMAND_NO_EXEC_COMMAND

const char* ToChar(Command aCommand);

}  // namespace mozilla

/**
 * All header files should include this header instead of *Events.h.
 */

namespace mozilla {

#define NS_EVENT_CLASS(aPrefix, aName) class aPrefix##aName;
#define NS_ROOT_EVENT_CLASS(aPrefix, aName) NS_EVENT_CLASS(aPrefix, aName)

#include "mozilla/EventClassList.h"

#undef NS_EVENT_CLASS
#undef NS_ROOT_EVENT_CLASS

// BasicEvents.h
struct BaseEventFlags;
struct EventFlags;

class WidgetEventTime;

class NativeEventData;

// TextEvents.h
enum class AccessKeyType;

struct AlternativeCharCode;
struct ShortcutKeyCandidate;

typedef nsTArray<ShortcutKeyCandidate> ShortcutKeyCandidateArray;
typedef AutoTArray<ShortcutKeyCandidate, 10> AutoShortcutKeyCandidateArray;

// TextRange.h
typedef uint8_t RawTextRangeType;
enum class TextRangeType : RawTextRangeType;

struct TextRangeStyle;
struct TextRange;

class EditCommands;
class TextRangeArray;

// FontRange.h
struct FontRange;

}  // namespace mozilla

#endif  // mozilla_EventForwards_h__