widget/EventForwards.h
author Noemi Erli <nerli@mozilla.com>
Tue, 26 Feb 2019 03:43:12 +0200
changeset 461110 3c030119c0dcf447dd1afe7165b2d6846a0bc7f0
parent 459852 b259d7a34058346d36896febd5cc1c94ed63a5ca
child 462537 577a1e61f6d37c5cc402d9fd0fc1cb40a489c616
permissions -rw-r--r--
Backed out 10 changesets (bug 1505871) for wrench bustages CLOSED TREE Backed out changeset 045ab0ec3613 (bug 1505871) Backed out changeset 6486435a048d (bug 1505871) Backed out changeset 9be871042749 (bug 1505871) Backed out changeset 0007feaf988d (bug 1505871) Backed out changeset 3cb8fb01e77e (bug 1505871) Backed out changeset 2fff213d97e3 (bug 1505871) Backed out changeset 1ad20d485eca (bug 1505871) Backed out changeset 0fd8742fa662 (bug 1505871) Backed out changeset 1899600a7985 (bug 1505871) Backed out changeset f9578d20e54e (bug 1505871)

/* -*- 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

/**
 * IsDataAvailableOnTextEditor() returns true if aInputType on TextEditor
 * should have non-null InputEvent.data value.
 */
inline bool IsDataAvailableOnTextEditor(EditorInputType aInputType) {
  switch (aInputType) {
    case EditorInputType::eInsertText:
    case EditorInputType::eInsertCompositionText:
    case EditorInputType::eInsertFromComposition:  // Only level 2
    case EditorInputType::eInsertFromPaste:
    case EditorInputType::eInsertTranspose:
    case EditorInputType::eInsertFromDrop:
    case EditorInputType::eInsertReplacementText:
    case EditorInputType::eInsertFromYank:
    case EditorInputType::eFormatSetBlockTextDirection:
    case EditorInputType::eFormatSetInlineTextDirection:
      return true;
    default:
      return false;
  }
}

/**
 * IsDataAvailableOnHTMLEditor() returns true if aInputType on HTMLEditor
 * should have non-null InputEvent.data value.
 */
inline bool IsDataAvailableOnHTMLEditor(EditorInputType aInputType) {
  switch (aInputType) {
    case EditorInputType::eInsertText:
    case EditorInputType::eInsertCompositionText:
    case EditorInputType::eInsertFromComposition:  // Only level 2
    case EditorInputType::eFormatSetBlockTextDirection:
    case EditorInputType::eFormatSetInlineTextDirection:
    case EditorInputType::eInsertLink:
    case EditorInputType::eFormatBackColor:
    case EditorInputType::eFormatFontColor:
    case EditorInputType::eFormatFontName:
      return true;
    default:
      return false;
  }
}

/**
 * IsDataTransferAvailableOnHTMLEditor() returns true if aInputType on
 * HTMLEditor should have non-null InputEvent.dataTransfer value.
 */
inline bool IsDataTransferAvailableOnHTMLEditor(EditorInputType aInputType) {
  switch (aInputType) {
    case EditorInputType::eInsertFromPaste:
    case EditorInputType::eInsertFromDrop:
    case EditorInputType::eInsertTranspose:
    case EditorInputType::eInsertReplacementText:
    case EditorInputType::eInsertFromYank:
      return true;
    default:
      return false;
  }
}

#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__