mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 13:45:27 +00:00
1162 lines
34 KiB
C++
1162 lines
34 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gfxPrefs.h"
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#include "mozilla/BasicEvents.h"
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#include "mozilla/ContentEvents.h"
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#include "mozilla/InternalMutationEvent.h"
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#include "mozilla/MiscEvents.h"
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#include "mozilla/MouseEvents.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/TextEvents.h"
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#include "mozilla/TouchEvents.h"
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#include "nsIDOMEventTarget.h"
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#include "nsPrintfCString.h"
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namespace mozilla {
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/******************************************************************************
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* Global helper methods
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******************************************************************************/
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const char*
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ToChar(EventMessage aEventMessage)
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{
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switch (aEventMessage) {
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#define NS_EVENT_MESSAGE(aMessage) \
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case aMessage: \
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return #aMessage;
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#include "mozilla/EventMessageList.h"
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#undef NS_EVENT_MESSAGE
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default:
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return "illegal event message";
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}
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}
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const char*
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ToChar(EventClassID aEventClassID)
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{
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switch (aEventClassID) {
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#define NS_ROOT_EVENT_CLASS(aPrefix, aName) \
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case eBasic##aName##Class: \
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return "eBasic" #aName "Class";
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#define NS_EVENT_CLASS(aPrefix, aName) \
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case e##aName##Class: \
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return "e" #aName "Class";
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#include "mozilla/EventClassList.h"
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#undef NS_EVENT_CLASS
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#undef NS_ROOT_EVENT_CLASS
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default:
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return "illegal event class ID";
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}
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}
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const nsCString
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ToString(KeyNameIndex aKeyNameIndex)
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{
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if (aKeyNameIndex == KEY_NAME_INDEX_USE_STRING) {
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return NS_LITERAL_CSTRING("USE_STRING");
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}
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nsAutoString keyName;
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WidgetKeyboardEvent::GetDOMKeyName(aKeyNameIndex, keyName);
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return NS_ConvertUTF16toUTF8(keyName);
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}
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const nsCString
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ToString(CodeNameIndex aCodeNameIndex)
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{
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if (aCodeNameIndex == CODE_NAME_INDEX_USE_STRING) {
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return NS_LITERAL_CSTRING("USE_STRING");
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}
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nsAutoString codeName;
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WidgetKeyboardEvent::GetDOMCodeName(aCodeNameIndex, codeName);
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return NS_ConvertUTF16toUTF8(codeName);
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}
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const nsCString
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GetDOMKeyCodeName(uint32_t aKeyCode)
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{
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switch (aKeyCode) {
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#define NS_DISALLOW_SAME_KEYCODE
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#define NS_DEFINE_VK(aDOMKeyName, aDOMKeyCode) \
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case aDOMKeyCode: \
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return NS_LITERAL_CSTRING(#aDOMKeyName);
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#include "mozilla/VirtualKeyCodeList.h"
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#undef NS_DEFINE_VK
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#undef NS_DISALLOW_SAME_KEYCODE
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default:
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return nsPrintfCString("Invalid DOM keyCode (0x%08X)", aKeyCode);
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}
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}
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bool
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IsValidRawTextRangeValue(RawTextRangeType aRawTextRangeType)
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{
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switch (static_cast<TextRangeType>(aRawTextRangeType)) {
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case TextRangeType::eUninitialized:
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case TextRangeType::eCaret:
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case TextRangeType::eRawClause:
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case TextRangeType::eSelectedRawClause:
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case TextRangeType::eConvertedClause:
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case TextRangeType::eSelectedClause:
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return true;
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default:
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return false;
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}
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}
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RawTextRangeType
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ToRawTextRangeType(TextRangeType aTextRangeType)
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{
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return static_cast<RawTextRangeType>(aTextRangeType);
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}
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TextRangeType
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ToTextRangeType(RawTextRangeType aRawTextRangeType)
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{
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MOZ_ASSERT(IsValidRawTextRangeValue(aRawTextRangeType));
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return static_cast<TextRangeType>(aRawTextRangeType);
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}
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const char*
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ToChar(TextRangeType aTextRangeType)
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{
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switch (aTextRangeType) {
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case TextRangeType::eUninitialized:
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return "TextRangeType::eUninitialized";
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case TextRangeType::eCaret:
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return "TextRangeType::eCaret";
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case TextRangeType::eRawClause:
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return "TextRangeType::eRawClause";
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case TextRangeType::eSelectedRawClause:
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return "TextRangeType::eSelectedRawClause";
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case TextRangeType::eConvertedClause:
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return "TextRangeType::eConvertedClause";
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case TextRangeType::eSelectedClause:
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return "TextRangeType::eSelectedClause";
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default:
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return "Invalid TextRangeType";
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}
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}
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SelectionType
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ToSelectionType(TextRangeType aTextRangeType)
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{
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switch (aTextRangeType) {
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case TextRangeType::eRawClause:
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return SelectionType::eIMERawClause;
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case TextRangeType::eSelectedRawClause:
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return SelectionType::eIMESelectedRawClause;
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case TextRangeType::eConvertedClause:
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return SelectionType::eIMEConvertedClause;
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case TextRangeType::eSelectedClause:
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return SelectionType::eIMESelectedClause;
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default:
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MOZ_CRASH("TextRangeType is invalid");
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return SelectionType::eNormal;
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}
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}
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/******************************************************************************
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* As*Event() implementation
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******************************************************************************/
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#define NS_ROOT_EVENT_CLASS(aPrefix, aName)
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#define NS_EVENT_CLASS(aPrefix, aName) \
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aPrefix##aName* \
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WidgetEvent::As##aName() \
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{ \
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return nullptr; \
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} \
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\
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const aPrefix##aName* \
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WidgetEvent::As##aName() const \
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{ \
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return const_cast<WidgetEvent*>(this)->As##aName(); \
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}
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#include "mozilla/EventClassList.h"
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#undef NS_EVENT_CLASS
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#undef NS_ROOT_EVENT_CLASS
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/******************************************************************************
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* mozilla::WidgetEvent
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*
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* Event struct type checking methods.
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******************************************************************************/
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bool
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WidgetEvent::IsQueryContentEvent() const
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{
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return mClass == eQueryContentEventClass;
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}
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bool
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WidgetEvent::IsSelectionEvent() const
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{
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return mClass == eSelectionEventClass;
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}
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bool
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WidgetEvent::IsContentCommandEvent() const
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{
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return mClass == eContentCommandEventClass;
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}
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bool
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WidgetEvent::IsNativeEventDelivererForPlugin() const
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{
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return mClass == ePluginEventClass;
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}
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/******************************************************************************
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* mozilla::WidgetEvent
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*
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* Event message checking methods.
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******************************************************************************/
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bool
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WidgetEvent::HasMouseEventMessage() const
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{
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switch (mMessage) {
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case eMouseDown:
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case eMouseUp:
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case eMouseClick:
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case eMouseDoubleClick:
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case eMouseAuxClick:
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case eMouseEnterIntoWidget:
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case eMouseExitFromWidget:
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case eMouseActivate:
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case eMouseOver:
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case eMouseOut:
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case eMouseHitTest:
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case eMouseMove:
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return true;
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default:
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return false;
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}
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}
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bool
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WidgetEvent::HasDragEventMessage() const
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{
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switch (mMessage) {
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case eDragEnter:
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case eDragOver:
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case eDragExit:
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case eDrag:
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case eDragEnd:
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case eDragStart:
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case eDrop:
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case eDragLeave:
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return true;
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default:
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return false;
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}
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}
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bool
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WidgetEvent::HasKeyEventMessage() const
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{
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switch (mMessage) {
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case eKeyDown:
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case eKeyPress:
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case eKeyUp:
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case eKeyDownOnPlugin:
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case eKeyUpOnPlugin:
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case eAccessKeyNotFound:
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return true;
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default:
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return false;
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}
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}
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bool
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WidgetEvent::HasIMEEventMessage() const
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{
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switch (mMessage) {
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case eCompositionStart:
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case eCompositionEnd:
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case eCompositionUpdate:
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case eCompositionChange:
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case eCompositionCommitAsIs:
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case eCompositionCommit:
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return true;
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default:
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return false;
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}
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}
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bool
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WidgetEvent::HasPluginActivationEventMessage() const
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{
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return mMessage == ePluginActivate ||
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mMessage == ePluginFocus;
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}
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/******************************************************************************
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* mozilla::WidgetEvent
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*
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* Specific event checking methods.
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******************************************************************************/
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bool
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WidgetEvent::CanBeSentToRemoteProcess() const
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{
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// If this event is explicitly marked as shouldn't be sent to remote process,
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// just return false.
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if (mFlags.mNoCrossProcessBoundaryForwarding) {
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return false;
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}
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if (mClass == eKeyboardEventClass ||
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mClass == eWheelEventClass) {
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return true;
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}
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switch (mMessage) {
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case eMouseDown:
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case eMouseUp:
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case eMouseMove:
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case eContextMenu:
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case eMouseEnterIntoWidget:
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case eMouseExitFromWidget:
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case eMouseTouchDrag:
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case eTouchStart:
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case eTouchMove:
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case eTouchEnd:
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case eTouchCancel:
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case eDragOver:
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case eDragExit:
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case eDrop:
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return true;
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default:
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return false;
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}
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}
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bool
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WidgetEvent::IsRetargetedNativeEventDelivererForPlugin() const
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{
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const WidgetPluginEvent* pluginEvent = AsPluginEvent();
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return pluginEvent && pluginEvent->mRetargetToFocusedDocument;
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}
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bool
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WidgetEvent::IsNonRetargetedNativeEventDelivererForPlugin() const
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{
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const WidgetPluginEvent* pluginEvent = AsPluginEvent();
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return pluginEvent && !pluginEvent->mRetargetToFocusedDocument;
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}
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bool
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WidgetEvent::IsIMERelatedEvent() const
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{
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return HasIMEEventMessage() || IsQueryContentEvent() || IsSelectionEvent();
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}
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bool
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WidgetEvent::IsUsingCoordinates() const
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{
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const WidgetMouseEvent* mouseEvent = AsMouseEvent();
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if (mouseEvent) {
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return !mouseEvent->IsContextMenuKeyEvent();
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}
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return !HasKeyEventMessage() && !IsIMERelatedEvent() &&
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!HasPluginActivationEventMessage() &&
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!IsNativeEventDelivererForPlugin() &&
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!IsContentCommandEvent();
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}
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bool
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WidgetEvent::IsTargetedAtFocusedWindow() const
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{
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const WidgetMouseEvent* mouseEvent = AsMouseEvent();
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if (mouseEvent) {
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return mouseEvent->IsContextMenuKeyEvent();
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}
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return HasKeyEventMessage() || IsIMERelatedEvent() ||
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IsContentCommandEvent() ||
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IsRetargetedNativeEventDelivererForPlugin();
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}
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bool
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WidgetEvent::IsTargetedAtFocusedContent() const
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{
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const WidgetMouseEvent* mouseEvent = AsMouseEvent();
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if (mouseEvent) {
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return mouseEvent->IsContextMenuKeyEvent();
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}
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return HasKeyEventMessage() || IsIMERelatedEvent() ||
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IsRetargetedNativeEventDelivererForPlugin();
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}
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bool
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WidgetEvent::IsAllowedToDispatchDOMEvent() const
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{
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switch (mClass) {
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case eMouseEventClass:
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// When content PreventDefault on ePointerDown, we will stop dispatching
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// the subsequent mouse events (eMouseDown, eMouseUp, eMouseMove). But we
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// still need the mouse events to be handled in EventStateManager to
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// generate other events (e.g. eMouseClick). So we only stop dispatching
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// them to DOM.
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if (DefaultPreventedByContent() &&
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(mMessage == eMouseMove || mMessage == eMouseDown ||
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mMessage == eMouseUp)) {
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return false;
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}
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if (mMessage == eMouseTouchDrag) {
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return false;
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}
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MOZ_FALLTHROUGH;
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case ePointerEventClass:
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// We want synthesized mouse moves to cause mouseover and mouseout
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// DOM events (EventStateManager::PreHandleEvent), but not mousemove
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// DOM events.
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// Synthesized button up events also do not cause DOM events because they
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// do not have a reliable mRefPoint.
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return AsMouseEvent()->mReason == WidgetMouseEvent::eReal;
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case eWheelEventClass: {
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// wheel event whose all delta values are zero by user pref applied, it
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// shouldn't cause a DOM event.
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const WidgetWheelEvent* wheelEvent = AsWheelEvent();
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return wheelEvent->mDeltaX != 0.0 || wheelEvent->mDeltaY != 0.0 ||
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wheelEvent->mDeltaZ != 0.0;
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}
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case eTouchEventClass:
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return mMessage != eTouchPointerCancel;
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// Following events are handled in EventStateManager, so, we don't need to
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// dispatch DOM event for them into the DOM tree.
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case eQueryContentEventClass:
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case eSelectionEventClass:
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case eContentCommandEventClass:
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return false;
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default:
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return true;
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}
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}
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bool
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WidgetEvent::IsAllowedToDispatchInSystemGroup() const
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{
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// We don't expect to implement default behaviors with pointer events because
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// if we do, prevent default on mouse events can't prevent default behaviors
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// anymore.
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return mClass != ePointerEventClass;
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}
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/******************************************************************************
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* mozilla::WidgetEvent
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*
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* Misc methods.
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******************************************************************************/
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static dom::EventTarget*
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GetTargetForDOMEvent(nsIDOMEventTarget* aTarget)
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{
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return aTarget ? aTarget->GetTargetForDOMEvent() : nullptr;
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}
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dom::EventTarget*
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WidgetEvent::GetDOMEventTarget() const
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{
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return GetTargetForDOMEvent(mTarget);
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}
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dom::EventTarget*
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WidgetEvent::GetCurrentDOMEventTarget() const
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{
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return GetTargetForDOMEvent(mCurrentTarget);
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}
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dom::EventTarget*
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WidgetEvent::GetOriginalDOMEventTarget() const
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{
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if (mOriginalTarget) {
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return GetTargetForDOMEvent(mOriginalTarget);
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}
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return GetDOMEventTarget();
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}
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/******************************************************************************
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* mozilla::WidgetInputEvent
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******************************************************************************/
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/* static */
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Modifier
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WidgetInputEvent::GetModifier(const nsAString& aDOMKeyName)
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{
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if (aDOMKeyName.EqualsLiteral("Accel")) {
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return AccelModifier();
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}
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KeyNameIndex keyNameIndex = WidgetKeyboardEvent::GetKeyNameIndex(aDOMKeyName);
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return WidgetKeyboardEvent::GetModifierForKeyName(keyNameIndex);
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}
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|
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/* static */
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Modifier
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WidgetInputEvent::AccelModifier()
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{
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static Modifier sAccelModifier = MODIFIER_NONE;
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if (sAccelModifier == MODIFIER_NONE) {
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switch (Preferences::GetInt("ui.key.accelKey", 0)) {
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case nsIDOMKeyEvent::DOM_VK_META:
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sAccelModifier = MODIFIER_META;
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break;
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case nsIDOMKeyEvent::DOM_VK_WIN:
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sAccelModifier = MODIFIER_OS;
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break;
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case nsIDOMKeyEvent::DOM_VK_ALT:
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sAccelModifier = MODIFIER_ALT;
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break;
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case nsIDOMKeyEvent::DOM_VK_CONTROL:
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sAccelModifier = MODIFIER_CONTROL;
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break;
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default:
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#ifdef XP_MACOSX
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sAccelModifier = MODIFIER_META;
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#else
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sAccelModifier = MODIFIER_CONTROL;
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#endif
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break;
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}
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}
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return sAccelModifier;
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}
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|
|
|
/******************************************************************************
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|
* mozilla::WidgetWheelEvent (MouseEvents.h)
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|
******************************************************************************/
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/* static */ double
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WidgetWheelEvent::ComputeOverriddenDelta(double aDelta, bool aIsForVertical)
|
|
{
|
|
if (!gfxPrefs::MouseWheelHasRootScrollDeltaOverride()) {
|
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return aDelta;
|
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}
|
|
int32_t intFactor = aIsForVertical
|
|
? gfxPrefs::MouseWheelRootScrollVerticalFactor()
|
|
: gfxPrefs::MouseWheelRootScrollHorizontalFactor();
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|
// Making the scroll speed slower doesn't make sense. So, ignore odd factor
|
|
// which is less than 1.0.
|
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if (intFactor <= 100) {
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return aDelta;
|
|
}
|
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double factor = static_cast<double>(intFactor) / 100;
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return aDelta * factor;
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}
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|
|
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double
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WidgetWheelEvent::OverriddenDeltaX() const
|
|
{
|
|
if (!mAllowToOverrideSystemScrollSpeed) {
|
|
return mDeltaX;
|
|
}
|
|
return ComputeOverriddenDelta(mDeltaX, false);
|
|
}
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|
|
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double
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WidgetWheelEvent::OverriddenDeltaY() const
|
|
{
|
|
if (!mAllowToOverrideSystemScrollSpeed) {
|
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return mDeltaY;
|
|
}
|
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return ComputeOverriddenDelta(mDeltaY, true);
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|
}
|
|
|
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/******************************************************************************
|
|
* mozilla::WidgetKeyboardEvent (TextEvents.h)
|
|
******************************************************************************/
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|
|
|
#define NS_DEFINE_KEYNAME(aCPPName, aDOMKeyName) (u"" aDOMKeyName),
|
|
const char16_t* const WidgetKeyboardEvent::kKeyNames[] = {
|
|
#include "mozilla/KeyNameList.h"
|
|
};
|
|
#undef NS_DEFINE_KEYNAME
|
|
|
|
#define NS_DEFINE_PHYSICAL_KEY_CODE_NAME(aCPPName, aDOMCodeName) \
|
|
(u"" aDOMCodeName),
|
|
const char16_t* const WidgetKeyboardEvent::kCodeNames[] = {
|
|
#include "mozilla/PhysicalKeyCodeNameList.h"
|
|
};
|
|
#undef NS_DEFINE_PHYSICAL_KEY_CODE_NAME
|
|
|
|
WidgetKeyboardEvent::KeyNameIndexHashtable*
|
|
WidgetKeyboardEvent::sKeyNameIndexHashtable = nullptr;
|
|
WidgetKeyboardEvent::CodeNameIndexHashtable*
|
|
WidgetKeyboardEvent::sCodeNameIndexHashtable = nullptr;
|
|
|
|
bool
|
|
WidgetKeyboardEvent::ShouldCauseKeypressEvents() const
|
|
{
|
|
// Currently, we don't dispatch keypress events of modifier keys and
|
|
// dead keys.
|
|
switch (mKeyNameIndex) {
|
|
case KEY_NAME_INDEX_Alt:
|
|
case KEY_NAME_INDEX_AltGraph:
|
|
case KEY_NAME_INDEX_CapsLock:
|
|
case KEY_NAME_INDEX_Control:
|
|
case KEY_NAME_INDEX_Fn:
|
|
case KEY_NAME_INDEX_FnLock:
|
|
// case KEY_NAME_INDEX_Hyper:
|
|
case KEY_NAME_INDEX_Meta:
|
|
case KEY_NAME_INDEX_NumLock:
|
|
case KEY_NAME_INDEX_OS:
|
|
case KEY_NAME_INDEX_ScrollLock:
|
|
case KEY_NAME_INDEX_Shift:
|
|
// case KEY_NAME_INDEX_Super:
|
|
case KEY_NAME_INDEX_Symbol:
|
|
case KEY_NAME_INDEX_SymbolLock:
|
|
case KEY_NAME_INDEX_Dead:
|
|
return false;
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
|
|
static bool
|
|
HasASCIIDigit(const ShortcutKeyCandidateArray& aCandidates)
|
|
{
|
|
for (uint32_t i = 0; i < aCandidates.Length(); ++i) {
|
|
uint32_t ch = aCandidates[i].mCharCode;
|
|
if (ch >= '0' && ch <= '9')
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static bool
|
|
CharsCaseInsensitiveEqual(uint32_t aChar1, uint32_t aChar2)
|
|
{
|
|
return aChar1 == aChar2 ||
|
|
(IS_IN_BMP(aChar1) && IS_IN_BMP(aChar2) &&
|
|
ToLowerCase(static_cast<char16_t>(aChar1)) ==
|
|
ToLowerCase(static_cast<char16_t>(aChar2)));
|
|
}
|
|
|
|
static bool
|
|
IsCaseChangeableChar(uint32_t aChar)
|
|
{
|
|
return IS_IN_BMP(aChar) &&
|
|
ToLowerCase(static_cast<char16_t>(aChar)) !=
|
|
ToUpperCase(static_cast<char16_t>(aChar));
|
|
}
|
|
|
|
void
|
|
WidgetKeyboardEvent::GetShortcutKeyCandidates(
|
|
ShortcutKeyCandidateArray& aCandidates)
|
|
{
|
|
MOZ_ASSERT(aCandidates.IsEmpty(), "aCandidates must be empty");
|
|
|
|
// ShortcutKeyCandidate::mCharCode is a candidate charCode.
|
|
// ShortcutKeyCandidate::mIgnoreShift means the mCharCode should be tried to
|
|
// execute a command with/without shift key state. If this is TRUE, the
|
|
// shifted key state should be ignored. Otherwise, don't ignore the state.
|
|
// the priority of the charCodes are (shift key is not pressed):
|
|
// 0: PseudoCharCode()/false,
|
|
// 1: unshiftedCharCodes[0]/false, 2: unshiftedCharCodes[1]/false...
|
|
// the priority of the charCodes are (shift key is pressed):
|
|
// 0: PseudoCharCode()/false,
|
|
// 1: shiftedCharCodes[0]/false, 2: shiftedCharCodes[0]/true,
|
|
// 3: shiftedCharCodes[1]/false, 4: shiftedCharCodes[1]/true...
|
|
uint32_t pseudoCharCode = PseudoCharCode();
|
|
if (pseudoCharCode) {
|
|
ShortcutKeyCandidate key(pseudoCharCode, false);
|
|
aCandidates.AppendElement(key);
|
|
}
|
|
|
|
uint32_t len = mAlternativeCharCodes.Length();
|
|
if (!IsShift()) {
|
|
for (uint32_t i = 0; i < len; ++i) {
|
|
uint32_t ch = mAlternativeCharCodes[i].mUnshiftedCharCode;
|
|
if (!ch || ch == pseudoCharCode) {
|
|
continue;
|
|
}
|
|
ShortcutKeyCandidate key(ch, false);
|
|
aCandidates.AppendElement(key);
|
|
}
|
|
// If unshiftedCharCodes doesn't have numeric but shiftedCharCode has it,
|
|
// this keyboard layout is AZERTY or similar layout, probably.
|
|
// In this case, Accel+[0-9] should be accessible without shift key.
|
|
// However, the priority should be lowest.
|
|
if (!HasASCIIDigit(aCandidates)) {
|
|
for (uint32_t i = 0; i < len; ++i) {
|
|
uint32_t ch = mAlternativeCharCodes[i].mShiftedCharCode;
|
|
if (ch >= '0' && ch <= '9') {
|
|
ShortcutKeyCandidate key(ch, false);
|
|
aCandidates.AppendElement(key);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
for (uint32_t i = 0; i < len; ++i) {
|
|
uint32_t ch = mAlternativeCharCodes[i].mShiftedCharCode;
|
|
if (!ch) {
|
|
continue;
|
|
}
|
|
|
|
if (ch != pseudoCharCode) {
|
|
ShortcutKeyCandidate key(ch, false);
|
|
aCandidates.AppendElement(key);
|
|
}
|
|
|
|
// If the char is an alphabet, the shift key state should not be
|
|
// ignored. E.g., Ctrl+Shift+C should not execute Ctrl+C.
|
|
|
|
// And checking the charCode is same as unshiftedCharCode too.
|
|
// E.g., for Ctrl+Shift+(Plus of Numpad) should not run Ctrl+Plus.
|
|
uint32_t unshiftCh = mAlternativeCharCodes[i].mUnshiftedCharCode;
|
|
if (CharsCaseInsensitiveEqual(ch, unshiftCh)) {
|
|
continue;
|
|
}
|
|
|
|
// On the Hebrew keyboard layout on Windows, the unshifted char is a
|
|
// localized character but the shifted char is a Latin alphabet,
|
|
// then, we should not execute without the shift state. See bug 433192.
|
|
if (IsCaseChangeableChar(ch)) {
|
|
continue;
|
|
}
|
|
|
|
// Setting the alternative charCode candidates for retry without shift
|
|
// key state only when the shift key is pressed.
|
|
ShortcutKeyCandidate key(ch, true);
|
|
aCandidates.AppendElement(key);
|
|
}
|
|
}
|
|
|
|
// Special case for "Space" key. With some keyboard layouts, "Space" with
|
|
// or without Shift key causes non-ASCII space. For such keyboard layouts,
|
|
// we should guarantee that the key press works as an ASCII white space key
|
|
// press. However, if the space key is assigned to a function key, it
|
|
// shouldn't work as a space key.
|
|
if (mKeyNameIndex == KEY_NAME_INDEX_USE_STRING &&
|
|
mCodeNameIndex == CODE_NAME_INDEX_Space && pseudoCharCode != ' ') {
|
|
ShortcutKeyCandidate spaceKey(' ', false);
|
|
aCandidates.AppendElement(spaceKey);
|
|
}
|
|
}
|
|
|
|
void
|
|
WidgetKeyboardEvent::GetAccessKeyCandidates(nsTArray<uint32_t>& aCandidates)
|
|
{
|
|
MOZ_ASSERT(aCandidates.IsEmpty(), "aCandidates must be empty");
|
|
|
|
// return the lower cased charCode candidates for access keys.
|
|
// the priority of the charCodes are:
|
|
// 0: charCode, 1: unshiftedCharCodes[0], 2: shiftedCharCodes[0]
|
|
// 3: unshiftedCharCodes[1], 4: shiftedCharCodes[1],...
|
|
if (mCharCode) {
|
|
uint32_t ch = mCharCode;
|
|
if (IS_IN_BMP(ch)) {
|
|
ch = ToLowerCase(static_cast<char16_t>(ch));
|
|
}
|
|
aCandidates.AppendElement(ch);
|
|
}
|
|
for (uint32_t i = 0; i < mAlternativeCharCodes.Length(); ++i) {
|
|
uint32_t ch[2] =
|
|
{ mAlternativeCharCodes[i].mUnshiftedCharCode,
|
|
mAlternativeCharCodes[i].mShiftedCharCode };
|
|
for (uint32_t j = 0; j < 2; ++j) {
|
|
if (!ch[j]) {
|
|
continue;
|
|
}
|
|
if (IS_IN_BMP(ch[j])) {
|
|
ch[j] = ToLowerCase(static_cast<char16_t>(ch[j]));
|
|
}
|
|
// Don't append the mCharCode that was already appended.
|
|
if (aCandidates.IndexOf(ch[j]) == aCandidates.NoIndex) {
|
|
aCandidates.AppendElement(ch[j]);
|
|
}
|
|
}
|
|
}
|
|
// Special case for "Space" key. With some keyboard layouts, "Space" with
|
|
// or without Shift key causes non-ASCII space. For such keyboard layouts,
|
|
// we should guarantee that the key press works as an ASCII white space key
|
|
// press. However, if the space key is assigned to a function key, it
|
|
// shouldn't work as a space key.
|
|
if (mKeyNameIndex == KEY_NAME_INDEX_USE_STRING &&
|
|
mCodeNameIndex == CODE_NAME_INDEX_Space && mCharCode != ' ') {
|
|
aCandidates.AppendElement(' ');
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* static */ void
|
|
WidgetKeyboardEvent::Shutdown()
|
|
{
|
|
delete sKeyNameIndexHashtable;
|
|
sKeyNameIndexHashtable = nullptr;
|
|
delete sCodeNameIndexHashtable;
|
|
sCodeNameIndexHashtable = nullptr;
|
|
}
|
|
|
|
/* static */ void
|
|
WidgetKeyboardEvent::GetDOMKeyName(KeyNameIndex aKeyNameIndex,
|
|
nsAString& aKeyName)
|
|
{
|
|
if (aKeyNameIndex >= KEY_NAME_INDEX_USE_STRING) {
|
|
aKeyName.Truncate();
|
|
return;
|
|
}
|
|
|
|
MOZ_RELEASE_ASSERT(static_cast<size_t>(aKeyNameIndex) <
|
|
ArrayLength(kKeyNames),
|
|
"Illegal key enumeration value");
|
|
aKeyName = kKeyNames[aKeyNameIndex];
|
|
}
|
|
|
|
/* static */ void
|
|
WidgetKeyboardEvent::GetDOMCodeName(CodeNameIndex aCodeNameIndex,
|
|
nsAString& aCodeName)
|
|
{
|
|
if (aCodeNameIndex >= CODE_NAME_INDEX_USE_STRING) {
|
|
aCodeName.Truncate();
|
|
return;
|
|
}
|
|
|
|
MOZ_RELEASE_ASSERT(static_cast<size_t>(aCodeNameIndex) <
|
|
ArrayLength(kCodeNames),
|
|
"Illegal physical code enumeration value");
|
|
aCodeName = kCodeNames[aCodeNameIndex];
|
|
}
|
|
|
|
/* static */ KeyNameIndex
|
|
WidgetKeyboardEvent::GetKeyNameIndex(const nsAString& aKeyValue)
|
|
{
|
|
if (!sKeyNameIndexHashtable) {
|
|
sKeyNameIndexHashtable =
|
|
new KeyNameIndexHashtable(ArrayLength(kKeyNames));
|
|
for (size_t i = 0; i < ArrayLength(kKeyNames); i++) {
|
|
sKeyNameIndexHashtable->Put(nsDependentString(kKeyNames[i]),
|
|
static_cast<KeyNameIndex>(i));
|
|
}
|
|
}
|
|
KeyNameIndex result = KEY_NAME_INDEX_USE_STRING;
|
|
sKeyNameIndexHashtable->Get(aKeyValue, &result);
|
|
return result;
|
|
}
|
|
|
|
/* static */ CodeNameIndex
|
|
WidgetKeyboardEvent::GetCodeNameIndex(const nsAString& aCodeValue)
|
|
{
|
|
if (!sCodeNameIndexHashtable) {
|
|
sCodeNameIndexHashtable =
|
|
new CodeNameIndexHashtable(ArrayLength(kCodeNames));
|
|
for (size_t i = 0; i < ArrayLength(kCodeNames); i++) {
|
|
sCodeNameIndexHashtable->Put(nsDependentString(kCodeNames[i]),
|
|
static_cast<CodeNameIndex>(i));
|
|
}
|
|
}
|
|
CodeNameIndex result = CODE_NAME_INDEX_USE_STRING;
|
|
sCodeNameIndexHashtable->Get(aCodeValue, &result);
|
|
return result;
|
|
}
|
|
|
|
/* static */ const char*
|
|
WidgetKeyboardEvent::GetCommandStr(Command aCommand)
|
|
{
|
|
#define NS_DEFINE_COMMAND(aName, aCommandStr) , #aCommandStr
|
|
static const char* const kCommands[] = {
|
|
"" // CommandDoNothing
|
|
#include "mozilla/CommandList.h"
|
|
};
|
|
#undef NS_DEFINE_COMMAND
|
|
|
|
MOZ_RELEASE_ASSERT(static_cast<size_t>(aCommand) < ArrayLength(kCommands),
|
|
"Illegal command enumeration value");
|
|
return kCommands[aCommand];
|
|
}
|
|
|
|
/* static */ uint32_t
|
|
WidgetKeyboardEvent::ComputeLocationFromCodeValue(CodeNameIndex aCodeNameIndex)
|
|
{
|
|
// Following commented out cases are not defined in PhysicalKeyCodeNameList.h
|
|
// but are defined by D3E spec. So, they should be uncommented when the
|
|
// code values are defined in the header.
|
|
switch (aCodeNameIndex) {
|
|
case CODE_NAME_INDEX_AltLeft:
|
|
case CODE_NAME_INDEX_ControlLeft:
|
|
case CODE_NAME_INDEX_OSLeft:
|
|
case CODE_NAME_INDEX_ShiftLeft:
|
|
return eKeyLocationLeft;
|
|
case CODE_NAME_INDEX_AltRight:
|
|
case CODE_NAME_INDEX_ControlRight:
|
|
case CODE_NAME_INDEX_OSRight:
|
|
case CODE_NAME_INDEX_ShiftRight:
|
|
return eKeyLocationRight;
|
|
case CODE_NAME_INDEX_Numpad0:
|
|
case CODE_NAME_INDEX_Numpad1:
|
|
case CODE_NAME_INDEX_Numpad2:
|
|
case CODE_NAME_INDEX_Numpad3:
|
|
case CODE_NAME_INDEX_Numpad4:
|
|
case CODE_NAME_INDEX_Numpad5:
|
|
case CODE_NAME_INDEX_Numpad6:
|
|
case CODE_NAME_INDEX_Numpad7:
|
|
case CODE_NAME_INDEX_Numpad8:
|
|
case CODE_NAME_INDEX_Numpad9:
|
|
case CODE_NAME_INDEX_NumpadAdd:
|
|
case CODE_NAME_INDEX_NumpadBackspace:
|
|
case CODE_NAME_INDEX_NumpadClear:
|
|
case CODE_NAME_INDEX_NumpadClearEntry:
|
|
case CODE_NAME_INDEX_NumpadComma:
|
|
case CODE_NAME_INDEX_NumpadDecimal:
|
|
case CODE_NAME_INDEX_NumpadDivide:
|
|
case CODE_NAME_INDEX_NumpadEnter:
|
|
case CODE_NAME_INDEX_NumpadEqual:
|
|
case CODE_NAME_INDEX_NumpadMemoryAdd:
|
|
case CODE_NAME_INDEX_NumpadMemoryClear:
|
|
case CODE_NAME_INDEX_NumpadMemoryRecall:
|
|
case CODE_NAME_INDEX_NumpadMemoryStore:
|
|
case CODE_NAME_INDEX_NumpadMemorySubtract:
|
|
case CODE_NAME_INDEX_NumpadMultiply:
|
|
case CODE_NAME_INDEX_NumpadParenLeft:
|
|
case CODE_NAME_INDEX_NumpadParenRight:
|
|
case CODE_NAME_INDEX_NumpadSubtract:
|
|
return eKeyLocationNumpad;
|
|
default:
|
|
return eKeyLocationStandard;
|
|
}
|
|
}
|
|
|
|
/* static */ uint32_t
|
|
WidgetKeyboardEvent::ComputeKeyCodeFromKeyNameIndex(KeyNameIndex aKeyNameIndex)
|
|
{
|
|
switch (aKeyNameIndex) {
|
|
case KEY_NAME_INDEX_Cancel:
|
|
return nsIDOMKeyEvent::DOM_VK_CANCEL;
|
|
case KEY_NAME_INDEX_Help:
|
|
return nsIDOMKeyEvent::DOM_VK_HELP;
|
|
case KEY_NAME_INDEX_Backspace:
|
|
return nsIDOMKeyEvent::DOM_VK_BACK_SPACE;
|
|
case KEY_NAME_INDEX_Tab:
|
|
return nsIDOMKeyEvent::DOM_VK_TAB;
|
|
case KEY_NAME_INDEX_Clear:
|
|
return nsIDOMKeyEvent::DOM_VK_CLEAR;
|
|
case KEY_NAME_INDEX_Enter:
|
|
return nsIDOMKeyEvent::DOM_VK_RETURN;
|
|
case KEY_NAME_INDEX_Shift:
|
|
return nsIDOMKeyEvent::DOM_VK_SHIFT;
|
|
case KEY_NAME_INDEX_Control:
|
|
return nsIDOMKeyEvent::DOM_VK_CONTROL;
|
|
case KEY_NAME_INDEX_Alt:
|
|
return nsIDOMKeyEvent::DOM_VK_ALT;
|
|
case KEY_NAME_INDEX_Pause:
|
|
return nsIDOMKeyEvent::DOM_VK_PAUSE;
|
|
case KEY_NAME_INDEX_CapsLock:
|
|
return nsIDOMKeyEvent::DOM_VK_CAPS_LOCK;
|
|
case KEY_NAME_INDEX_Hiragana:
|
|
case KEY_NAME_INDEX_Katakana:
|
|
case KEY_NAME_INDEX_HiraganaKatakana:
|
|
case KEY_NAME_INDEX_KanaMode:
|
|
return nsIDOMKeyEvent::DOM_VK_KANA;
|
|
case KEY_NAME_INDEX_HangulMode:
|
|
return nsIDOMKeyEvent::DOM_VK_HANGUL;
|
|
case KEY_NAME_INDEX_Eisu:
|
|
return nsIDOMKeyEvent::DOM_VK_EISU;
|
|
case KEY_NAME_INDEX_JunjaMode:
|
|
return nsIDOMKeyEvent::DOM_VK_JUNJA;
|
|
case KEY_NAME_INDEX_FinalMode:
|
|
return nsIDOMKeyEvent::DOM_VK_FINAL;
|
|
case KEY_NAME_INDEX_HanjaMode:
|
|
return nsIDOMKeyEvent::DOM_VK_HANJA;
|
|
case KEY_NAME_INDEX_KanjiMode:
|
|
return nsIDOMKeyEvent::DOM_VK_KANJI;
|
|
case KEY_NAME_INDEX_Escape:
|
|
return nsIDOMKeyEvent::DOM_VK_ESCAPE;
|
|
case KEY_NAME_INDEX_Convert:
|
|
return nsIDOMKeyEvent::DOM_VK_CONVERT;
|
|
case KEY_NAME_INDEX_NonConvert:
|
|
return nsIDOMKeyEvent::DOM_VK_NONCONVERT;
|
|
case KEY_NAME_INDEX_Accept:
|
|
return nsIDOMKeyEvent::DOM_VK_ACCEPT;
|
|
case KEY_NAME_INDEX_ModeChange:
|
|
return nsIDOMKeyEvent::DOM_VK_MODECHANGE;
|
|
case KEY_NAME_INDEX_PageUp:
|
|
return nsIDOMKeyEvent::DOM_VK_PAGE_UP;
|
|
case KEY_NAME_INDEX_PageDown:
|
|
return nsIDOMKeyEvent::DOM_VK_PAGE_DOWN;
|
|
case KEY_NAME_INDEX_End:
|
|
return nsIDOMKeyEvent::DOM_VK_END;
|
|
case KEY_NAME_INDEX_Home:
|
|
return nsIDOMKeyEvent::DOM_VK_HOME;
|
|
case KEY_NAME_INDEX_ArrowLeft:
|
|
return nsIDOMKeyEvent::DOM_VK_LEFT;
|
|
case KEY_NAME_INDEX_ArrowUp:
|
|
return nsIDOMKeyEvent::DOM_VK_UP;
|
|
case KEY_NAME_INDEX_ArrowRight:
|
|
return nsIDOMKeyEvent::DOM_VK_RIGHT;
|
|
case KEY_NAME_INDEX_ArrowDown:
|
|
return nsIDOMKeyEvent::DOM_VK_DOWN;
|
|
case KEY_NAME_INDEX_Select:
|
|
return nsIDOMKeyEvent::DOM_VK_SELECT;
|
|
case KEY_NAME_INDEX_Print:
|
|
return nsIDOMKeyEvent::DOM_VK_PRINT;
|
|
case KEY_NAME_INDEX_Execute:
|
|
return nsIDOMKeyEvent::DOM_VK_EXECUTE;
|
|
case KEY_NAME_INDEX_PrintScreen:
|
|
return nsIDOMKeyEvent::DOM_VK_PRINTSCREEN;
|
|
case KEY_NAME_INDEX_Insert:
|
|
return nsIDOMKeyEvent::DOM_VK_INSERT;
|
|
case KEY_NAME_INDEX_Delete:
|
|
return nsIDOMKeyEvent::DOM_VK_DELETE;
|
|
case KEY_NAME_INDEX_OS:
|
|
// case KEY_NAME_INDEX_Super:
|
|
// case KEY_NAME_INDEX_Hyper:
|
|
return nsIDOMKeyEvent::DOM_VK_WIN;
|
|
case KEY_NAME_INDEX_ContextMenu:
|
|
return nsIDOMKeyEvent::DOM_VK_CONTEXT_MENU;
|
|
case KEY_NAME_INDEX_Standby:
|
|
return nsIDOMKeyEvent::DOM_VK_SLEEP;
|
|
case KEY_NAME_INDEX_F1:
|
|
return nsIDOMKeyEvent::DOM_VK_F1;
|
|
case KEY_NAME_INDEX_F2:
|
|
return nsIDOMKeyEvent::DOM_VK_F2;
|
|
case KEY_NAME_INDEX_F3:
|
|
return nsIDOMKeyEvent::DOM_VK_F3;
|
|
case KEY_NAME_INDEX_F4:
|
|
return nsIDOMKeyEvent::DOM_VK_F4;
|
|
case KEY_NAME_INDEX_F5:
|
|
return nsIDOMKeyEvent::DOM_VK_F5;
|
|
case KEY_NAME_INDEX_F6:
|
|
return nsIDOMKeyEvent::DOM_VK_F6;
|
|
case KEY_NAME_INDEX_F7:
|
|
return nsIDOMKeyEvent::DOM_VK_F7;
|
|
case KEY_NAME_INDEX_F8:
|
|
return nsIDOMKeyEvent::DOM_VK_F8;
|
|
case KEY_NAME_INDEX_F9:
|
|
return nsIDOMKeyEvent::DOM_VK_F9;
|
|
case KEY_NAME_INDEX_F10:
|
|
return nsIDOMKeyEvent::DOM_VK_F10;
|
|
case KEY_NAME_INDEX_F11:
|
|
return nsIDOMKeyEvent::DOM_VK_F11;
|
|
case KEY_NAME_INDEX_F12:
|
|
return nsIDOMKeyEvent::DOM_VK_F12;
|
|
case KEY_NAME_INDEX_F13:
|
|
return nsIDOMKeyEvent::DOM_VK_F13;
|
|
case KEY_NAME_INDEX_F14:
|
|
return nsIDOMKeyEvent::DOM_VK_F14;
|
|
case KEY_NAME_INDEX_F15:
|
|
return nsIDOMKeyEvent::DOM_VK_F15;
|
|
case KEY_NAME_INDEX_F16:
|
|
return nsIDOMKeyEvent::DOM_VK_F16;
|
|
case KEY_NAME_INDEX_F17:
|
|
return nsIDOMKeyEvent::DOM_VK_F17;
|
|
case KEY_NAME_INDEX_F18:
|
|
return nsIDOMKeyEvent::DOM_VK_F18;
|
|
case KEY_NAME_INDEX_F19:
|
|
return nsIDOMKeyEvent::DOM_VK_F19;
|
|
case KEY_NAME_INDEX_F20:
|
|
return nsIDOMKeyEvent::DOM_VK_F20;
|
|
case KEY_NAME_INDEX_F21:
|
|
return nsIDOMKeyEvent::DOM_VK_F21;
|
|
case KEY_NAME_INDEX_F22:
|
|
return nsIDOMKeyEvent::DOM_VK_F22;
|
|
case KEY_NAME_INDEX_F23:
|
|
return nsIDOMKeyEvent::DOM_VK_F23;
|
|
case KEY_NAME_INDEX_F24:
|
|
return nsIDOMKeyEvent::DOM_VK_F24;
|
|
case KEY_NAME_INDEX_NumLock:
|
|
return nsIDOMKeyEvent::DOM_VK_NUM_LOCK;
|
|
case KEY_NAME_INDEX_ScrollLock:
|
|
return nsIDOMKeyEvent::DOM_VK_SCROLL_LOCK;
|
|
case KEY_NAME_INDEX_AudioVolumeMute:
|
|
return nsIDOMKeyEvent::DOM_VK_VOLUME_MUTE;
|
|
case KEY_NAME_INDEX_AudioVolumeDown:
|
|
return nsIDOMKeyEvent::DOM_VK_VOLUME_DOWN;
|
|
case KEY_NAME_INDEX_AudioVolumeUp:
|
|
return nsIDOMKeyEvent::DOM_VK_VOLUME_UP;
|
|
case KEY_NAME_INDEX_Meta:
|
|
return nsIDOMKeyEvent::DOM_VK_META;
|
|
case KEY_NAME_INDEX_AltGraph:
|
|
return nsIDOMKeyEvent::DOM_VK_ALTGR;
|
|
case KEY_NAME_INDEX_Attn:
|
|
return nsIDOMKeyEvent::DOM_VK_ATTN;
|
|
case KEY_NAME_INDEX_CrSel:
|
|
return nsIDOMKeyEvent::DOM_VK_CRSEL;
|
|
case KEY_NAME_INDEX_ExSel:
|
|
return nsIDOMKeyEvent::DOM_VK_EXSEL;
|
|
case KEY_NAME_INDEX_EraseEof:
|
|
return nsIDOMKeyEvent::DOM_VK_EREOF;
|
|
case KEY_NAME_INDEX_Play:
|
|
return nsIDOMKeyEvent::DOM_VK_PLAY;
|
|
case KEY_NAME_INDEX_ZoomToggle:
|
|
case KEY_NAME_INDEX_ZoomIn:
|
|
case KEY_NAME_INDEX_ZoomOut:
|
|
return nsIDOMKeyEvent::DOM_VK_ZOOM;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* static */ Modifier
|
|
WidgetKeyboardEvent::GetModifierForKeyName(KeyNameIndex aKeyNameIndex)
|
|
{
|
|
switch (aKeyNameIndex) {
|
|
case KEY_NAME_INDEX_Alt:
|
|
return MODIFIER_ALT;
|
|
case KEY_NAME_INDEX_AltGraph:
|
|
return MODIFIER_ALTGRAPH;
|
|
case KEY_NAME_INDEX_CapsLock:
|
|
return MODIFIER_CAPSLOCK;
|
|
case KEY_NAME_INDEX_Control:
|
|
return MODIFIER_CONTROL;
|
|
case KEY_NAME_INDEX_Fn:
|
|
return MODIFIER_FN;
|
|
case KEY_NAME_INDEX_FnLock:
|
|
return MODIFIER_FNLOCK;
|
|
// case KEY_NAME_INDEX_Hyper:
|
|
case KEY_NAME_INDEX_Meta:
|
|
return MODIFIER_META;
|
|
case KEY_NAME_INDEX_NumLock:
|
|
return MODIFIER_NUMLOCK;
|
|
case KEY_NAME_INDEX_OS:
|
|
return MODIFIER_OS;
|
|
case KEY_NAME_INDEX_ScrollLock:
|
|
return MODIFIER_SCROLLLOCK;
|
|
case KEY_NAME_INDEX_Shift:
|
|
return MODIFIER_SHIFT;
|
|
// case KEY_NAME_INDEX_Super:
|
|
case KEY_NAME_INDEX_Symbol:
|
|
return MODIFIER_SYMBOL;
|
|
case KEY_NAME_INDEX_SymbolLock:
|
|
return MODIFIER_SYMBOLLOCK;
|
|
default:
|
|
return MODIFIER_NONE;
|
|
}
|
|
}
|
|
|
|
/* static */ bool
|
|
WidgetKeyboardEvent::IsLockableModifier(KeyNameIndex aKeyNameIndex)
|
|
{
|
|
switch (aKeyNameIndex) {
|
|
case KEY_NAME_INDEX_CapsLock:
|
|
case KEY_NAME_INDEX_FnLock:
|
|
case KEY_NAME_INDEX_NumLock:
|
|
case KEY_NAME_INDEX_ScrollLock:
|
|
case KEY_NAME_INDEX_SymbolLock:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
} // namespace mozilla
|