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gecko-dev/widget/WidgetEventImpl.cpp

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/* -*- 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/. */
#include "mozilla/BasicEvents.h"
#include "mozilla/ContentEvents.h"
#include "mozilla/EventStateManager.h"
#include "mozilla/InternalMutationEvent.h"
#include "mozilla/MiscEvents.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/Preferences.h"
#include "mozilla/StaticPrefs_mousewheel.h"
#include "mozilla/StaticPrefs_ui.h"
#include "mozilla/TextEvents.h"
#include "mozilla/TouchEvents.h"
#include "mozilla/dom/KeyboardEventBinding.h"
#include "nsCommandParams.h"
#include "nsContentUtils.h"
#include "nsIContent.h"
#include "nsPrintfCString.h"
namespace mozilla {
/******************************************************************************
* Global helper methods
******************************************************************************/
const char* ToChar(EventMessage aEventMessage) {
switch (aEventMessage) {
#define NS_EVENT_MESSAGE(aMessage) \
case aMessage: \
return #aMessage;
#include "mozilla/EventMessageList.h"
#undef NS_EVENT_MESSAGE
default:
return "illegal event message";
}
}
const char* ToChar(EventClassID aEventClassID) {
switch (aEventClassID) {
#define NS_ROOT_EVENT_CLASS(aPrefix, aName) \
case eBasic##aName##Class: \
return "eBasic" #aName "Class";
#define NS_EVENT_CLASS(aPrefix, aName) \
case e##aName##Class: \
return "e" #aName "Class";
#include "mozilla/EventClassList.h"
#undef NS_EVENT_CLASS
#undef NS_ROOT_EVENT_CLASS
default:
return "illegal event class ID";
}
}
const nsCString ToString(KeyNameIndex aKeyNameIndex) {
if (aKeyNameIndex == KEY_NAME_INDEX_USE_STRING) {
return NS_LITERAL_CSTRING("USE_STRING");
}
nsAutoString keyName;
WidgetKeyboardEvent::GetDOMKeyName(aKeyNameIndex, keyName);
return NS_ConvertUTF16toUTF8(keyName);
}
const nsCString ToString(CodeNameIndex aCodeNameIndex) {
if (aCodeNameIndex == CODE_NAME_INDEX_USE_STRING) {
return NS_LITERAL_CSTRING("USE_STRING");
}
nsAutoString codeName;
WidgetKeyboardEvent::GetDOMCodeName(aCodeNameIndex, codeName);
return NS_ConvertUTF16toUTF8(codeName);
}
const char* ToChar(Command aCommand) {
if (aCommand == Command::DoNothing) {
return "CommandDoNothing";
}
switch (aCommand) {
#define NS_DEFINE_COMMAND(aName, aCommandStr) \
case Command::aName: \
return "Command::" #aName;
#define NS_DEFINE_COMMAND_WITH_PARAM(aName, aCommandStr, aParam) \
case Command::aName: \
return "Command::" #aName;
#define NS_DEFINE_COMMAND_NO_EXEC_COMMAND(aName) \
case Command::aName: \
return "Command::" #aName;
#include "mozilla/CommandList.h"
#undef NS_DEFINE_COMMAND
#undef NS_DEFINE_COMMAND_WITH_PARAM
#undef NS_DEFINE_COMMAND_NO_EXEC_COMMAND
default:
return "illegal command value";
}
}
const nsCString GetDOMKeyCodeName(uint32_t aKeyCode) {
switch (aKeyCode) {
#define NS_DISALLOW_SAME_KEYCODE
#define NS_DEFINE_VK(aDOMKeyName, aDOMKeyCode) \
case aDOMKeyCode: \
return NS_LITERAL_CSTRING(#aDOMKeyName);
#include "mozilla/VirtualKeyCodeList.h"
#undef NS_DEFINE_VK
#undef NS_DISALLOW_SAME_KEYCODE
default:
return nsPrintfCString("Invalid DOM keyCode (0x%08X)", aKeyCode);
}
}
bool IsValidRawTextRangeValue(RawTextRangeType aRawTextRangeType) {
switch (static_cast<TextRangeType>(aRawTextRangeType)) {
case TextRangeType::eUninitialized:
case TextRangeType::eCaret:
case TextRangeType::eRawClause:
case TextRangeType::eSelectedRawClause:
case TextRangeType::eConvertedClause:
case TextRangeType::eSelectedClause:
return true;
default:
return false;
}
}
RawTextRangeType ToRawTextRangeType(TextRangeType aTextRangeType) {
return static_cast<RawTextRangeType>(aTextRangeType);
}
TextRangeType ToTextRangeType(RawTextRangeType aRawTextRangeType) {
MOZ_ASSERT(IsValidRawTextRangeValue(aRawTextRangeType));
return static_cast<TextRangeType>(aRawTextRangeType);
}
const char* ToChar(TextRangeType aTextRangeType) {
switch (aTextRangeType) {
case TextRangeType::eUninitialized:
return "TextRangeType::eUninitialized";
case TextRangeType::eCaret:
return "TextRangeType::eCaret";
case TextRangeType::eRawClause:
return "TextRangeType::eRawClause";
case TextRangeType::eSelectedRawClause:
return "TextRangeType::eSelectedRawClause";
case TextRangeType::eConvertedClause:
return "TextRangeType::eConvertedClause";
case TextRangeType::eSelectedClause:
return "TextRangeType::eSelectedClause";
default:
return "Invalid TextRangeType";
}
}
SelectionType ToSelectionType(TextRangeType aTextRangeType) {
switch (aTextRangeType) {
case TextRangeType::eRawClause:
return SelectionType::eIMERawClause;
case TextRangeType::eSelectedRawClause:
return SelectionType::eIMESelectedRawClause;
case TextRangeType::eConvertedClause:
return SelectionType::eIMEConvertedClause;
case TextRangeType::eSelectedClause:
return SelectionType::eIMESelectedClause;
default:
MOZ_CRASH("TextRangeType is invalid");
return SelectionType::eNormal;
}
}
/******************************************************************************
* non class method implementation
******************************************************************************/
static nsDataHashtable<nsDepCharHashKey, Command>* sCommandHashtable = nullptr;
Command GetInternalCommand(const char* aCommandName,
const nsCommandParams* aCommandParams) {
if (!aCommandName) {
return Command::DoNothing;
}
// Special cases for "cmd_align". It's mapped to multiple internal commands
// with additional param. Therefore, we cannot handle it with the hashtable.
if (!strcmp(aCommandName, "cmd_align")) {
if (!aCommandParams) {
// Note that if this is called by EditorCommand::IsCommandEnabled(),
// it cannot set aCommandParams. So, don't warn in this case even though
// this is illegal case for DoCommandParams().
return Command::FormatJustify;
}
nsAutoCString cValue;
nsresult rv = aCommandParams->GetCString("state_attribute", cValue);
if (NS_FAILED(rv)) {
nsString value; // Avoid copying the string buffer with using nsString.
rv = aCommandParams->GetString("state_attribute", value);
if (NS_FAILED(rv)) {
return Command::FormatJustifyNone;
}
cValue = NS_ConvertUTF16toUTF8(value);
}
if (cValue.LowerCaseEqualsASCII("left")) {
return Command::FormatJustifyLeft;
}
if (cValue.LowerCaseEqualsASCII("right")) {
return Command::FormatJustifyRight;
}
if (cValue.LowerCaseEqualsASCII("center")) {
return Command::FormatJustifyCenter;
}
if (cValue.LowerCaseEqualsASCII("justify")) {
return Command::FormatJustifyFull;
}
if (cValue.IsEmpty()) {
return Command::FormatJustifyNone;
}
return Command::DoNothing;
}
if (!sCommandHashtable) {
sCommandHashtable = new nsDataHashtable<nsDepCharHashKey, Command>();
#define NS_DEFINE_COMMAND(aName, aCommandStr) \
sCommandHashtable->Put(#aCommandStr, Command::aName);
#define NS_DEFINE_COMMAND_WITH_PARAM(aName, aCommandStr, aParam)
#define NS_DEFINE_COMMAND_NO_EXEC_COMMAND(aName)
#include "mozilla/CommandList.h"
#undef NS_DEFINE_COMMAND
#undef NS_DEFINE_COMMAND_WITH_PARAM
#undef NS_DEFINE_COMMAND_NO_EXEC_COMMAND
}
Command command = Command::DoNothing;
if (!sCommandHashtable->Get(aCommandName, &command)) {
return Command::DoNothing;
}
return command;
}
/******************************************************************************
* As*Event() implementation
******************************************************************************/
#define NS_ROOT_EVENT_CLASS(aPrefix, aName)
#define NS_EVENT_CLASS(aPrefix, aName) \
aPrefix##aName* WidgetEvent::As##aName() { return nullptr; } \
\
const aPrefix##aName* WidgetEvent::As##aName() const { \
return const_cast<WidgetEvent*>(this)->As##aName(); \
}
#include "mozilla/EventClassList.h"
#undef NS_EVENT_CLASS
#undef NS_ROOT_EVENT_CLASS
/******************************************************************************
* mozilla::WidgetEvent
*
* Event struct type checking methods.
******************************************************************************/
bool WidgetEvent::IsQueryContentEvent() const {
return mClass == eQueryContentEventClass;
}
bool WidgetEvent::IsSelectionEvent() const {
return mClass == eSelectionEventClass;
}
bool WidgetEvent::IsContentCommandEvent() const {
return mClass == eContentCommandEventClass;
}
bool WidgetEvent::IsNativeEventDelivererForPlugin() const {
return mClass == ePluginEventClass;
}
/******************************************************************************
* mozilla::WidgetEvent
*
* Event message checking methods.
******************************************************************************/
bool WidgetEvent::HasMouseEventMessage() const {
switch (mMessage) {
case eMouseDown:
case eMouseUp:
case eMouseClick:
case eMouseDoubleClick:
case eMouseAuxClick:
case eMouseEnterIntoWidget:
case eMouseExitFromWidget:
case eMouseActivate:
case eMouseOver:
case eMouseOut:
case eMouseHitTest:
case eMouseMove:
return true;
default:
return false;
}
}
bool WidgetEvent::HasDragEventMessage() const {
switch (mMessage) {
case eDragEnter:
case eDragOver:
case eDragExit:
case eDrag:
case eDragEnd:
case eDragStart:
case eDrop:
case eDragLeave:
return true;
default:
return false;
}
}
/* static */
bool WidgetEvent::IsKeyEventMessage(EventMessage aMessage) {
switch (aMessage) {
case eKeyDown:
case eKeyPress:
case eKeyUp:
case eKeyDownOnPlugin:
case eKeyUpOnPlugin:
case eAccessKeyNotFound:
return true;
default:
return false;
}
}
bool WidgetEvent::HasIMEEventMessage() const {
switch (mMessage) {
case eCompositionStart:
case eCompositionEnd:
case eCompositionUpdate:
case eCompositionChange:
case eCompositionCommitAsIs:
case eCompositionCommit:
return true;
default:
return false;
}
}
bool WidgetEvent::HasPluginActivationEventMessage() const {
return mMessage == ePluginActivate || mMessage == ePluginFocus;
}
/******************************************************************************
* mozilla::WidgetEvent
*
* Specific event checking methods.
******************************************************************************/
bool WidgetEvent::CanBeSentToRemoteProcess() const {
// If this event is explicitly marked as shouldn't be sent to remote process,
// just return false.
if (IsCrossProcessForwardingStopped()) {
return false;
}
if (mClass == eKeyboardEventClass || mClass == eWheelEventClass) {
return true;
}
switch (mMessage) {
case eMouseDown:
case eMouseUp:
case eMouseMove:
case eContextMenu:
case eMouseEnterIntoWidget:
case eMouseExitFromWidget:
case eMouseTouchDrag:
case eTouchStart:
case eTouchMove:
case eTouchEnd:
case eTouchCancel:
case eDragOver:
case eDragExit:
case eDrop:
return true;
default:
return false;
}
}
bool WidgetEvent::WillBeSentToRemoteProcess() const {
// This event won't be posted to remote process if it's already explicitly
// stopped.
if (IsCrossProcessForwardingStopped()) {
return false;
}
// When mOriginalTarget is nullptr, this method shouldn't be used.
if (NS_WARN_IF(!mOriginalTarget)) {
return false;
}
nsCOMPtr<nsIContent> originalTarget = do_QueryInterface(mOriginalTarget);
return EventStateManager::IsRemoteTarget(originalTarget);
}
bool WidgetEvent::IsRetargetedNativeEventDelivererForPlugin() const {
const WidgetPluginEvent* pluginEvent = AsPluginEvent();
return pluginEvent && pluginEvent->mRetargetToFocusedDocument;
}
bool WidgetEvent::IsNonRetargetedNativeEventDelivererForPlugin() const {
const WidgetPluginEvent* pluginEvent = AsPluginEvent();
return pluginEvent && !pluginEvent->mRetargetToFocusedDocument;
}
bool WidgetEvent::IsIMERelatedEvent() const {
return HasIMEEventMessage() || IsQueryContentEvent() || IsSelectionEvent();
}
bool WidgetEvent::IsUsingCoordinates() const {
const WidgetMouseEvent* mouseEvent = AsMouseEvent();
if (mouseEvent) {
return !mouseEvent->IsContextMenuKeyEvent();
}
return !HasKeyEventMessage() && !IsIMERelatedEvent() &&
!HasPluginActivationEventMessage() &&
!IsNativeEventDelivererForPlugin() && !IsContentCommandEvent();
}
bool WidgetEvent::IsTargetedAtFocusedWindow() const {
const WidgetMouseEvent* mouseEvent = AsMouseEvent();
if (mouseEvent) {
return mouseEvent->IsContextMenuKeyEvent();
}
return HasKeyEventMessage() || IsIMERelatedEvent() ||
IsContentCommandEvent() || IsRetargetedNativeEventDelivererForPlugin();
}
bool WidgetEvent::IsTargetedAtFocusedContent() const {
const WidgetMouseEvent* mouseEvent = AsMouseEvent();
if (mouseEvent) {
return mouseEvent->IsContextMenuKeyEvent();
}
return HasKeyEventMessage() || IsIMERelatedEvent() ||
IsRetargetedNativeEventDelivererForPlugin();
}
bool WidgetEvent::IsAllowedToDispatchDOMEvent() const {
switch (mClass) {
case eMouseEventClass:
if (mMessage == eMouseTouchDrag) {
return false;
}
MOZ_FALLTHROUGH;
case ePointerEventClass:
// We want synthesized mouse moves to cause mouseover and mouseout
// DOM events (EventStateManager::PreHandleEvent), but not mousemove
// DOM events.
// Synthesized button up events also do not cause DOM events because they
// do not have a reliable mRefPoint.
return AsMouseEvent()->mReason == WidgetMouseEvent::eReal;
case eWheelEventClass: {
// wheel event whose all delta values are zero by user pref applied, it
// shouldn't cause a DOM event.
const WidgetWheelEvent* wheelEvent = AsWheelEvent();
return wheelEvent->mDeltaX != 0.0 || wheelEvent->mDeltaY != 0.0 ||
wheelEvent->mDeltaZ != 0.0;
}
case eTouchEventClass:
return mMessage != eTouchPointerCancel;
// Following events are handled in EventStateManager, so, we don't need to
// dispatch DOM event for them into the DOM tree.
case eQueryContentEventClass:
case eSelectionEventClass:
case eContentCommandEventClass:
return false;
default:
return true;
}
}
bool WidgetEvent::IsAllowedToDispatchInSystemGroup() const {
// We don't expect to implement default behaviors with pointer events because
// if we do, prevent default on mouse events can't prevent default behaviors
// anymore.
return mClass != ePointerEventClass;
}
bool WidgetEvent::IsBlockedForFingerprintingResistance() const {
if (!nsContentUtils::ShouldResistFingerprinting()) {
return false;
}
switch (mClass) {
case eKeyboardEventClass: {
const WidgetKeyboardEvent* keyboardEvent = AsKeyboardEvent();
return (keyboardEvent->mKeyNameIndex == KEY_NAME_INDEX_Alt ||
keyboardEvent->mKeyNameIndex == KEY_NAME_INDEX_Shift ||
keyboardEvent->mKeyNameIndex == KEY_NAME_INDEX_Control ||
keyboardEvent->mKeyNameIndex == KEY_NAME_INDEX_AltGraph);
}
case ePointerEventClass: {
const WidgetPointerEvent* pointerEvent = AsPointerEvent();
// We suppress the pointer events if it is not primary for fingerprinting
// resistance. It is because of that we want to spoof any pointer event
// into a mouse pointer event and the mouse pointer event only has
// isPrimary as true.
return !pointerEvent->mIsPrimary;
}
default:
return false;
}
}
/******************************************************************************
* mozilla::WidgetEvent
*
* Misc methods.
******************************************************************************/
static dom::EventTarget* GetTargetForDOMEvent(dom::EventTarget* aTarget) {
return aTarget ? aTarget->GetTargetForDOMEvent() : nullptr;
}
dom::EventTarget* WidgetEvent::GetDOMEventTarget() const {
return GetTargetForDOMEvent(mTarget);
}
dom::EventTarget* WidgetEvent::GetCurrentDOMEventTarget() const {
return GetTargetForDOMEvent(mCurrentTarget);
}
dom::EventTarget* WidgetEvent::GetOriginalDOMEventTarget() const {
if (mOriginalTarget) {
return GetTargetForDOMEvent(mOriginalTarget);
}
return GetDOMEventTarget();
}
void WidgetEvent::PreventDefault(bool aCalledByDefaultHandler,
nsIPrincipal* aPrincipal) {
if (mMessage == ePointerDown) {
if (aCalledByDefaultHandler) {
// Shouldn't prevent default on pointerdown by default handlers to stop
// firing legacy mouse events. Use MOZ_ASSERT to catch incorrect usages
// in debug builds.
MOZ_ASSERT(false);
return;
}
if (aPrincipal) {
nsAutoString addonId;
Unused << NS_WARN_IF(NS_FAILED(aPrincipal->GetAddonId(addonId)));
if (!addonId.IsEmpty()) {
// Ignore the case that it's called by a web extension.
return;
}
}
}
mFlags.PreventDefault(aCalledByDefaultHandler);
}
bool WidgetEvent::IsUserAction() const {
if (!IsTrusted()) {
return false;
}
// FYI: eMouseScrollEventClass and ePointerEventClass represent
// user action but they are synthesized events.
switch (mClass) {
case eKeyboardEventClass:
case eCompositionEventClass:
case eMouseScrollEventClass:
case eWheelEventClass:
case eGestureNotifyEventClass:
case eSimpleGestureEventClass:
case eTouchEventClass:
case eCommandEventClass:
case eContentCommandEventClass:
case ePluginEventClass:
return true;
case eMouseEventClass:
case eDragEventClass:
case ePointerEventClass:
return AsMouseEvent()->IsReal();
default:
return false;
}
}
/******************************************************************************
* mozilla::WidgetInputEvent
******************************************************************************/
/* static */
Modifier WidgetInputEvent::GetModifier(const nsAString& aDOMKeyName) {
if (aDOMKeyName.EqualsLiteral("Accel")) {
return AccelModifier();
}
KeyNameIndex keyNameIndex = WidgetKeyboardEvent::GetKeyNameIndex(aDOMKeyName);
return WidgetKeyboardEvent::GetModifierForKeyName(keyNameIndex);
}
/* static */
Modifier WidgetInputEvent::AccelModifier() {
static Modifier sAccelModifier = MODIFIER_NONE;
if (sAccelModifier == MODIFIER_NONE) {
switch (Preferences::GetInt("ui.key.accelKey", 0)) {
case dom::KeyboardEvent_Binding::DOM_VK_META:
sAccelModifier = MODIFIER_META;
break;
case dom::KeyboardEvent_Binding::DOM_VK_WIN:
sAccelModifier = MODIFIER_OS;
break;
case dom::KeyboardEvent_Binding::DOM_VK_ALT:
sAccelModifier = MODIFIER_ALT;
break;
case dom::KeyboardEvent_Binding::DOM_VK_CONTROL:
sAccelModifier = MODIFIER_CONTROL;
break;
default:
#ifdef XP_MACOSX
sAccelModifier = MODIFIER_META;
#else
sAccelModifier = MODIFIER_CONTROL;
#endif
break;
}
}
return sAccelModifier;
}
/******************************************************************************
* mozilla::WidgetMouseEvent (MouseEvents.h)
******************************************************************************/
/* static */
bool WidgetMouseEvent::IsMiddleClickPasteEnabled() {
return Preferences::GetBool("middlemouse.paste", false);
}
/******************************************************************************
* mozilla::WidgetWheelEvent (MouseEvents.h)
******************************************************************************/
/* static */
double WidgetWheelEvent::ComputeOverriddenDelta(double aDelta,
bool aIsForVertical) {
if (!StaticPrefs::
mousewheel_system_scroll_override_on_root_content_enabled()) {
return aDelta;
}
int32_t intFactor =
aIsForVertical
? StaticPrefs::
mousewheel_system_scroll_override_on_root_content_vertical_factor()
: StaticPrefs::
mousewheel_system_scroll_override_on_root_content_horizontal_factor();
// Making the scroll speed slower doesn't make sense. So, ignore odd factor
// which is less than 1.0.
if (intFactor <= 100) {
return aDelta;
}
double factor = static_cast<double>(intFactor) / 100;
return aDelta * factor;
}
double WidgetWheelEvent::OverriddenDeltaX() const {
if (!mAllowToOverrideSystemScrollSpeed) {
return mDeltaX;
}
return ComputeOverriddenDelta(mDeltaX, false);
}
double WidgetWheelEvent::OverriddenDeltaY() const {
if (!mAllowToOverrideSystemScrollSpeed) {
return mDeltaY;
}
return ComputeOverriddenDelta(mDeltaY, true);
}
/******************************************************************************
* mozilla::WidgetKeyboardEvent (TextEvents.h)
******************************************************************************/
#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;
void WidgetKeyboardEvent::InitAllEditCommands() {
// If the event was created without widget, e.g., created event in chrome
// script, this shouldn't execute native key bindings.
if (NS_WARN_IF(!mWidget)) {
return;
}
// This event should be trusted event here and we shouldn't expose native
// key binding information to web contents with untrusted events.
if (NS_WARN_IF(!IsTrusted())) {
return;
}
MOZ_ASSERT(
XRE_IsParentProcess(),
"It's too expensive to retrieve all edit commands from remote process");
MOZ_ASSERT(!AreAllEditCommandsInitialized(),
"Shouldn't be called two or more times");
InitEditCommandsFor(nsIWidget::NativeKeyBindingsForSingleLineEditor);
InitEditCommandsFor(nsIWidget::NativeKeyBindingsForMultiLineEditor);
InitEditCommandsFor(nsIWidget::NativeKeyBindingsForRichTextEditor);
}
void WidgetKeyboardEvent::InitEditCommandsFor(
nsIWidget::NativeKeyBindingsType aType) {
if (NS_WARN_IF(!mWidget) || NS_WARN_IF(!IsTrusted())) {
return;
}
bool& initialized = IsEditCommandsInitializedRef(aType);
if (initialized) {
return;
}
nsTArray<CommandInt>& commands = EditCommandsRef(aType);
mWidget->GetEditCommands(aType, *this, commands);
initialized = true;
}
bool WidgetKeyboardEvent::ExecuteEditCommands(
nsIWidget::NativeKeyBindingsType aType, DoCommandCallback aCallback,
void* aCallbackData) {
// If the event was created without widget, e.g., created event in chrome
// script, this shouldn't execute native key bindings.
if (NS_WARN_IF(!mWidget)) {
return false;
}
// This event should be trusted event here and we shouldn't expose native
// key binding information to web contents with untrusted events.
if (NS_WARN_IF(!IsTrusted())) {
return false;
}
InitEditCommandsFor(aType);
const nsTArray<CommandInt>& commands = EditCommandsRef(aType);
if (commands.IsEmpty()) {
return false;
}
for (CommandInt command : commands) {
aCallback(static_cast<Command>(command), aCallbackData);
}
return true;
}
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) const {
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) const {
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],...
uint32_t pseudoCharCode = PseudoCharCode();
if (pseudoCharCode) {
uint32_t ch = pseudoCharCode;
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 charcode 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 && pseudoCharCode != ' ') {
aCandidates.AppendElement(' ');
}
}
// mask values for ui.key.chromeAccess and ui.key.contentAccess
#define NS_MODIFIER_SHIFT 1
#define NS_MODIFIER_CONTROL 2
#define NS_MODIFIER_ALT 4
#define NS_MODIFIER_META 8
#define NS_MODIFIER_OS 16
static Modifiers PrefFlagsToModifiers(int32_t aPrefFlags) {
Modifiers result = 0;
if (aPrefFlags & NS_MODIFIER_SHIFT) {
result |= MODIFIER_SHIFT;
}
if (aPrefFlags & NS_MODIFIER_CONTROL) {
result |= MODIFIER_CONTROL;
}
if (aPrefFlags & NS_MODIFIER_ALT) {
result |= MODIFIER_ALT;
}
if (aPrefFlags & NS_MODIFIER_META) {
result |= MODIFIER_META;
}
if (aPrefFlags & NS_MODIFIER_OS) {
result |= MODIFIER_OS;
}
return result;
}
bool WidgetKeyboardEvent::ModifiersMatchWithAccessKey(
AccessKeyType aType) const {
if (!ModifiersForAccessKeyMatching()) {
return false;
}
return ModifiersForAccessKeyMatching() == AccessKeyModifiers(aType);
}
Modifiers WidgetKeyboardEvent::ModifiersForAccessKeyMatching() const {
static const Modifiers kModifierMask = MODIFIER_SHIFT | MODIFIER_CONTROL |
MODIFIER_ALT | MODIFIER_META |
MODIFIER_OS;
return mModifiers & kModifierMask;
}
/* static */
Modifiers WidgetKeyboardEvent::AccessKeyModifiers(AccessKeyType aType) {
switch (StaticPrefs::ui_key_generalAccessKey()) {
case -1:
break; // use the individual prefs
case NS_VK_SHIFT:
return MODIFIER_SHIFT;
case NS_VK_CONTROL:
return MODIFIER_CONTROL;
case NS_VK_ALT:
return MODIFIER_ALT;
case NS_VK_META:
return MODIFIER_META;
case NS_VK_WIN:
return MODIFIER_OS;
default:
return MODIFIER_NONE;
}
switch (aType) {
case AccessKeyType::eChrome:
return PrefFlagsToModifiers(StaticPrefs::ui_key_chromeAccess());
case AccessKeyType::eContent:
return PrefFlagsToModifiers(StaticPrefs::ui_key_contentAccess());
default:
return MODIFIER_NONE;
}
}
/* static */
void WidgetKeyboardEvent::Shutdown() {
delete sKeyNameIndexHashtable;
sKeyNameIndexHashtable = nullptr;
delete sCodeNameIndexHashtable;
sCodeNameIndexHashtable = nullptr;
// Although sCommandHashtable is not a member of WidgetKeyboardEvent, but
// let's delete it here since we need to do it at same time.
delete sCommandHashtable;
sCommandHashtable = 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 */
uint32_t WidgetKeyboardEvent::GetFallbackKeyCodeOfPunctuationKey(
CodeNameIndex aCodeNameIndex) {
switch (aCodeNameIndex) {
case CODE_NAME_INDEX_Semicolon: // VK_OEM_1 on Windows
return dom::KeyboardEvent_Binding::DOM_VK_SEMICOLON;
case CODE_NAME_INDEX_Equal: // VK_OEM_PLUS on Windows
return dom::KeyboardEvent_Binding::DOM_VK_EQUALS;
case CODE_NAME_INDEX_Comma: // VK_OEM_COMMA on Windows
return dom::KeyboardEvent_Binding::DOM_VK_COMMA;
case CODE_NAME_INDEX_Minus: // VK_OEM_MINUS on Windows
return dom::KeyboardEvent_Binding::DOM_VK_HYPHEN_MINUS;
case CODE_NAME_INDEX_Period: // VK_OEM_PERIOD on Windows
return dom::KeyboardEvent_Binding::DOM_VK_PERIOD;
case CODE_NAME_INDEX_Slash: // VK_OEM_2 on Windows
return dom::KeyboardEvent_Binding::DOM_VK_SLASH;
case CODE_NAME_INDEX_Backquote: // VK_OEM_3 on Windows
return dom::KeyboardEvent_Binding::DOM_VK_BACK_QUOTE;
case CODE_NAME_INDEX_BracketLeft: // VK_OEM_4 on Windows
return dom::KeyboardEvent_Binding::DOM_VK_OPEN_BRACKET;
case CODE_NAME_INDEX_Backslash: // VK_OEM_5 on Windows
return dom::KeyboardEvent_Binding::DOM_VK_BACK_SLASH;
case CODE_NAME_INDEX_BracketRight: // VK_OEM_6 on Windows
return dom::KeyboardEvent_Binding::DOM_VK_CLOSE_BRACKET;
case CODE_NAME_INDEX_Quote: // VK_OEM_7 on Windows
return dom::KeyboardEvent_Binding::DOM_VK_QUOTE;
case CODE_NAME_INDEX_IntlBackslash: // VK_OEM_5 on Windows (ABNT, etc)
case CODE_NAME_INDEX_IntlYen: // VK_OEM_5 on Windows (JIS)
case CODE_NAME_INDEX_IntlRo: // VK_OEM_102 on Windows
return dom::KeyboardEvent_Binding::DOM_VK_BACK_SLASH;
default:
return 0;
}
}
/* static */ const char* WidgetKeyboardEvent::GetCommandStr(Command aCommand) {
#define NS_DEFINE_COMMAND(aName, aCommandStr) , #aCommandStr
#define NS_DEFINE_COMMAND_WITH_PARAM(aName, aCommandStr, aParam) , #aCommandStr
#define NS_DEFINE_COMMAND_NO_EXEC_COMMAND(aName)
static const char* const kCommands[] = {
"" // DoNothing
#include "mozilla/CommandList.h"
};
#undef NS_DEFINE_COMMAND
#undef NS_DEFINE_COMMAND_WITH_PARAM
#undef NS_DEFINE_COMMAND_NO_EXEC_COMMAND
MOZ_RELEASE_ASSERT(static_cast<size_t>(aCommand) < ArrayLength(kCommands),
"Illegal command enumeration value");
return kCommands[static_cast<CommandInt>(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 dom::KeyboardEvent_Binding::DOM_VK_CANCEL;
case KEY_NAME_INDEX_Help:
return dom::KeyboardEvent_Binding::DOM_VK_HELP;
case KEY_NAME_INDEX_Backspace:
return dom::KeyboardEvent_Binding::DOM_VK_BACK_SPACE;
case KEY_NAME_INDEX_Tab:
return dom::KeyboardEvent_Binding::DOM_VK_TAB;
case KEY_NAME_INDEX_Clear:
return dom::KeyboardEvent_Binding::DOM_VK_CLEAR;
case KEY_NAME_INDEX_Enter:
return dom::KeyboardEvent_Binding::DOM_VK_RETURN;
case KEY_NAME_INDEX_Shift:
return dom::KeyboardEvent_Binding::DOM_VK_SHIFT;
case KEY_NAME_INDEX_Control:
return dom::KeyboardEvent_Binding::DOM_VK_CONTROL;
case KEY_NAME_INDEX_Alt:
return dom::KeyboardEvent_Binding::DOM_VK_ALT;
case KEY_NAME_INDEX_Pause:
return dom::KeyboardEvent_Binding::DOM_VK_PAUSE;
case KEY_NAME_INDEX_CapsLock:
return dom::KeyboardEvent_Binding::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 dom::KeyboardEvent_Binding::DOM_VK_KANA;
case KEY_NAME_INDEX_HangulMode:
return dom::KeyboardEvent_Binding::DOM_VK_HANGUL;
case KEY_NAME_INDEX_Eisu:
return dom::KeyboardEvent_Binding::DOM_VK_EISU;
case KEY_NAME_INDEX_JunjaMode:
return dom::KeyboardEvent_Binding::DOM_VK_JUNJA;
case KEY_NAME_INDEX_FinalMode:
return dom::KeyboardEvent_Binding::DOM_VK_FINAL;
case KEY_NAME_INDEX_HanjaMode:
return dom::KeyboardEvent_Binding::DOM_VK_HANJA;
case KEY_NAME_INDEX_KanjiMode:
return dom::KeyboardEvent_Binding::DOM_VK_KANJI;
case KEY_NAME_INDEX_Escape:
return dom::KeyboardEvent_Binding::DOM_VK_ESCAPE;
case KEY_NAME_INDEX_Convert:
return dom::KeyboardEvent_Binding::DOM_VK_CONVERT;
case KEY_NAME_INDEX_NonConvert:
return dom::KeyboardEvent_Binding::DOM_VK_NONCONVERT;
case KEY_NAME_INDEX_Accept:
return dom::KeyboardEvent_Binding::DOM_VK_ACCEPT;
case KEY_NAME_INDEX_ModeChange:
return dom::KeyboardEvent_Binding::DOM_VK_MODECHANGE;
case KEY_NAME_INDEX_PageUp:
return dom::KeyboardEvent_Binding::DOM_VK_PAGE_UP;
case KEY_NAME_INDEX_PageDown:
return dom::KeyboardEvent_Binding::DOM_VK_PAGE_DOWN;
case KEY_NAME_INDEX_End:
return dom::KeyboardEvent_Binding::DOM_VK_END;
case KEY_NAME_INDEX_Home:
return dom::KeyboardEvent_Binding::DOM_VK_HOME;
case KEY_NAME_INDEX_ArrowLeft:
return dom::KeyboardEvent_Binding::DOM_VK_LEFT;
case KEY_NAME_INDEX_ArrowUp:
return dom::KeyboardEvent_Binding::DOM_VK_UP;
case KEY_NAME_INDEX_ArrowRight:
return dom::KeyboardEvent_Binding::DOM_VK_RIGHT;
case KEY_NAME_INDEX_ArrowDown:
return dom::KeyboardEvent_Binding::DOM_VK_DOWN;
case KEY_NAME_INDEX_Select:
return dom::KeyboardEvent_Binding::DOM_VK_SELECT;
case KEY_NAME_INDEX_Print:
return dom::KeyboardEvent_Binding::DOM_VK_PRINT;
case KEY_NAME_INDEX_Execute:
return dom::KeyboardEvent_Binding::DOM_VK_EXECUTE;
case KEY_NAME_INDEX_PrintScreen:
return dom::KeyboardEvent_Binding::DOM_VK_PRINTSCREEN;
case KEY_NAME_INDEX_Insert:
return dom::KeyboardEvent_Binding::DOM_VK_INSERT;
case KEY_NAME_INDEX_Delete:
return dom::KeyboardEvent_Binding::DOM_VK_DELETE;
case KEY_NAME_INDEX_OS:
// case KEY_NAME_INDEX_Super:
// case KEY_NAME_INDEX_Hyper:
return dom::KeyboardEvent_Binding::DOM_VK_WIN;
case KEY_NAME_INDEX_ContextMenu:
return dom::KeyboardEvent_Binding::DOM_VK_CONTEXT_MENU;
case KEY_NAME_INDEX_Standby:
return dom::KeyboardEvent_Binding::DOM_VK_SLEEP;
case KEY_NAME_INDEX_F1:
return dom::KeyboardEvent_Binding::DOM_VK_F1;
case KEY_NAME_INDEX_F2:
return dom::KeyboardEvent_Binding::DOM_VK_F2;
case KEY_NAME_INDEX_F3:
return dom::KeyboardEvent_Binding::DOM_VK_F3;
case KEY_NAME_INDEX_F4:
return dom::KeyboardEvent_Binding::DOM_VK_F4;
case KEY_NAME_INDEX_F5:
return dom::KeyboardEvent_Binding::DOM_VK_F5;
case KEY_NAME_INDEX_F6:
return dom::KeyboardEvent_Binding::DOM_VK_F6;
case KEY_NAME_INDEX_F7:
return dom::KeyboardEvent_Binding::DOM_VK_F7;
case KEY_NAME_INDEX_F8:
return dom::KeyboardEvent_Binding::DOM_VK_F8;
case KEY_NAME_INDEX_F9:
return dom::KeyboardEvent_Binding::DOM_VK_F9;
case KEY_NAME_INDEX_F10:
return dom::KeyboardEvent_Binding::DOM_VK_F10;
case KEY_NAME_INDEX_F11:
return dom::KeyboardEvent_Binding::DOM_VK_F11;
case KEY_NAME_INDEX_F12:
return dom::KeyboardEvent_Binding::DOM_VK_F12;
case KEY_NAME_INDEX_F13:
return dom::KeyboardEvent_Binding::DOM_VK_F13;
case KEY_NAME_INDEX_F14:
return dom::KeyboardEvent_Binding::DOM_VK_F14;
case KEY_NAME_INDEX_F15:
return dom::KeyboardEvent_Binding::DOM_VK_F15;
case KEY_NAME_INDEX_F16:
return dom::KeyboardEvent_Binding::DOM_VK_F16;
case KEY_NAME_INDEX_F17:
return dom::KeyboardEvent_Binding::DOM_VK_F17;
case KEY_NAME_INDEX_F18:
return dom::KeyboardEvent_Binding::DOM_VK_F18;
case KEY_NAME_INDEX_F19:
return dom::KeyboardEvent_Binding::DOM_VK_F19;
case KEY_NAME_INDEX_F20:
return dom::KeyboardEvent_Binding::DOM_VK_F20;
case KEY_NAME_INDEX_F21:
return dom::KeyboardEvent_Binding::DOM_VK_F21;
case KEY_NAME_INDEX_F22:
return dom::KeyboardEvent_Binding::DOM_VK_F22;
case KEY_NAME_INDEX_F23:
return dom::KeyboardEvent_Binding::DOM_VK_F23;
case KEY_NAME_INDEX_F24:
return dom::KeyboardEvent_Binding::DOM_VK_F24;
case KEY_NAME_INDEX_NumLock:
return dom::KeyboardEvent_Binding::DOM_VK_NUM_LOCK;
case KEY_NAME_INDEX_ScrollLock:
return dom::KeyboardEvent_Binding::DOM_VK_SCROLL_LOCK;
case KEY_NAME_INDEX_AudioVolumeMute:
return dom::KeyboardEvent_Binding::DOM_VK_VOLUME_MUTE;
case KEY_NAME_INDEX_AudioVolumeDown:
return dom::KeyboardEvent_Binding::DOM_VK_VOLUME_DOWN;
case KEY_NAME_INDEX_AudioVolumeUp:
return dom::KeyboardEvent_Binding::DOM_VK_VOLUME_UP;
case KEY_NAME_INDEX_Meta:
return dom::KeyboardEvent_Binding::DOM_VK_META;
case KEY_NAME_INDEX_AltGraph:
return dom::KeyboardEvent_Binding::DOM_VK_ALTGR;
case KEY_NAME_INDEX_Process:
return dom::KeyboardEvent_Binding::DOM_VK_PROCESSKEY;
case KEY_NAME_INDEX_Attn:
return dom::KeyboardEvent_Binding::DOM_VK_ATTN;
case KEY_NAME_INDEX_CrSel:
return dom::KeyboardEvent_Binding::DOM_VK_CRSEL;
case KEY_NAME_INDEX_ExSel:
return dom::KeyboardEvent_Binding::DOM_VK_EXSEL;
case KEY_NAME_INDEX_EraseEof:
return dom::KeyboardEvent_Binding::DOM_VK_EREOF;
case KEY_NAME_INDEX_Play:
return dom::KeyboardEvent_Binding::DOM_VK_PLAY;
case KEY_NAME_INDEX_ZoomToggle:
case KEY_NAME_INDEX_ZoomIn:
case KEY_NAME_INDEX_ZoomOut:
return dom::KeyboardEvent_Binding::DOM_VK_ZOOM;
default:
return 0;
}
}
/* static */
CodeNameIndex WidgetKeyboardEvent::ComputeCodeNameIndexFromKeyNameIndex(
KeyNameIndex aKeyNameIndex, const Maybe<uint32_t>& aLocation) {
if (aLocation.isSome() &&
aLocation.value() ==
dom::KeyboardEvent_Binding::DOM_KEY_LOCATION_NUMPAD) {
// On macOS, NumLock is not supported. Therefore, this handles
// control key values except "Enter" only on non-macOS platforms.
switch (aKeyNameIndex) {
#ifndef XP_MACOSX
case KEY_NAME_INDEX_Insert:
return CODE_NAME_INDEX_Numpad0;
case KEY_NAME_INDEX_End:
return CODE_NAME_INDEX_Numpad1;
case KEY_NAME_INDEX_ArrowDown:
return CODE_NAME_INDEX_Numpad2;
case KEY_NAME_INDEX_PageDown:
return CODE_NAME_INDEX_Numpad3;
case KEY_NAME_INDEX_ArrowLeft:
return CODE_NAME_INDEX_Numpad4;
case KEY_NAME_INDEX_Clear:
// FYI: "Clear" on macOS should be DOM_KEY_LOCATION_STANDARD.
return CODE_NAME_INDEX_Numpad5;
case KEY_NAME_INDEX_ArrowRight:
return CODE_NAME_INDEX_Numpad6;
case KEY_NAME_INDEX_Home:
return CODE_NAME_INDEX_Numpad7;
case KEY_NAME_INDEX_ArrowUp:
return CODE_NAME_INDEX_Numpad8;
case KEY_NAME_INDEX_PageUp:
return CODE_NAME_INDEX_Numpad9;
case KEY_NAME_INDEX_Delete:
return CODE_NAME_INDEX_NumpadDecimal;
#endif // #ifndef XP_MACOSX
case KEY_NAME_INDEX_Enter:
return CODE_NAME_INDEX_NumpadEnter;
default:
return CODE_NAME_INDEX_UNKNOWN;
}
}
if (WidgetKeyboardEvent::IsLeftOrRightModiferKeyNameIndex(aKeyNameIndex)) {
if (aLocation.isSome() &&
(aLocation.value() !=
dom::KeyboardEvent_Binding::DOM_KEY_LOCATION_LEFT &&
aLocation.value() !=
dom::KeyboardEvent_Binding::DOM_KEY_LOCATION_RIGHT)) {
return CODE_NAME_INDEX_UNKNOWN;
}
bool isRight =
aLocation.isSome() &&
aLocation.value() == dom::KeyboardEvent_Binding::DOM_KEY_LOCATION_RIGHT;
switch (aKeyNameIndex) {
case KEY_NAME_INDEX_Alt:
return isRight ? CODE_NAME_INDEX_AltRight : CODE_NAME_INDEX_AltLeft;
case KEY_NAME_INDEX_Control:
return isRight ? CODE_NAME_INDEX_ControlRight
: CODE_NAME_INDEX_ControlLeft;
case KEY_NAME_INDEX_Shift:
return isRight ? CODE_NAME_INDEX_ShiftRight : CODE_NAME_INDEX_ShiftLeft;
#if defined(XP_WIN)
case KEY_NAME_INDEX_Meta:
return CODE_NAME_INDEX_UNKNOWN;
case KEY_NAME_INDEX_OS: // win key.
return isRight ? CODE_NAME_INDEX_OSRight : CODE_NAME_INDEX_OSLeft;
#elif defined(XP_MACOSX) || defined(ANDROID)
case KEY_NAME_INDEX_Meta: // command key.
return isRight ? CODE_NAME_INDEX_OSRight : CODE_NAME_INDEX_OSLeft;
case KEY_NAME_INDEX_OS:
return CODE_NAME_INDEX_UNKNOWN;
#else
case KEY_NAME_INDEX_Meta: // Alt + Shift.
return isRight ? CODE_NAME_INDEX_AltRight : CODE_NAME_INDEX_AltLeft;
case KEY_NAME_INDEX_OS: // Super/Hyper key.
return isRight ? CODE_NAME_INDEX_OSRight : CODE_NAME_INDEX_OSLeft;
#endif
default:
return CODE_NAME_INDEX_UNKNOWN;
}
}
if (aLocation.isSome() &&
aLocation.value() !=
dom::KeyboardEvent_Binding::DOM_KEY_LOCATION_STANDARD) {
return CODE_NAME_INDEX_UNKNOWN;
}
switch (aKeyNameIndex) {
// Standard section:
case KEY_NAME_INDEX_Escape:
return CODE_NAME_INDEX_Escape;
case KEY_NAME_INDEX_Tab:
return CODE_NAME_INDEX_Tab;
case KEY_NAME_INDEX_CapsLock:
return CODE_NAME_INDEX_CapsLock;
case KEY_NAME_INDEX_ContextMenu:
return CODE_NAME_INDEX_ContextMenu;
case KEY_NAME_INDEX_Backspace:
return CODE_NAME_INDEX_Backspace;
case KEY_NAME_INDEX_Enter:
return CODE_NAME_INDEX_Enter;
#ifdef XP_MACOSX
// Although, macOS does not fire native key event of "Fn" key, we support
// Fn key event if it's sent by other apps directly.
case KEY_NAME_INDEX_Fn:
return CODE_NAME_INDEX_Fn;
#endif // #ifdef
// Arrow Pad section:
case KEY_NAME_INDEX_ArrowLeft:
return CODE_NAME_INDEX_ArrowLeft;
case KEY_NAME_INDEX_ArrowUp:
return CODE_NAME_INDEX_ArrowUp;
case KEY_NAME_INDEX_ArrowDown:
return CODE_NAME_INDEX_ArrowDown;
case KEY_NAME_INDEX_ArrowRight:
return CODE_NAME_INDEX_ArrowRight;
// Control Pad section:
#ifndef XP_MACOSX
case KEY_NAME_INDEX_Insert:
return CODE_NAME_INDEX_Insert;
#else
case KEY_NAME_INDEX_Help:
return CODE_NAME_INDEX_Help;
#endif // #ifndef XP_MACOSX #else
case KEY_NAME_INDEX_Delete:
return CODE_NAME_INDEX_Delete;
case KEY_NAME_INDEX_Home:
return CODE_NAME_INDEX_Home;
case KEY_NAME_INDEX_End:
return CODE_NAME_INDEX_End;
case KEY_NAME_INDEX_PageUp:
return CODE_NAME_INDEX_PageUp;
case KEY_NAME_INDEX_PageDown:
return CODE_NAME_INDEX_PageDown;
// Function keys:
case KEY_NAME_INDEX_F1:
return CODE_NAME_INDEX_F1;
case KEY_NAME_INDEX_F2:
return CODE_NAME_INDEX_F2;
case KEY_NAME_INDEX_F3:
return CODE_NAME_INDEX_F3;
case KEY_NAME_INDEX_F4:
return CODE_NAME_INDEX_F4;
case KEY_NAME_INDEX_F5:
return CODE_NAME_INDEX_F5;
case KEY_NAME_INDEX_F6:
return CODE_NAME_INDEX_F6;
case KEY_NAME_INDEX_F7:
return CODE_NAME_INDEX_F7;
case KEY_NAME_INDEX_F8:
return CODE_NAME_INDEX_F8;
case KEY_NAME_INDEX_F9:
return CODE_NAME_INDEX_F9;
case KEY_NAME_INDEX_F10:
return CODE_NAME_INDEX_F10;
case KEY_NAME_INDEX_F11:
return CODE_NAME_INDEX_F11;
case KEY_NAME_INDEX_F12:
return CODE_NAME_INDEX_F12;
case KEY_NAME_INDEX_F13:
return CODE_NAME_INDEX_F13;
case KEY_NAME_INDEX_F14:
return CODE_NAME_INDEX_F14;
case KEY_NAME_INDEX_F15:
return CODE_NAME_INDEX_F15;
case KEY_NAME_INDEX_F16:
return CODE_NAME_INDEX_F16;
case KEY_NAME_INDEX_F17:
return CODE_NAME_INDEX_F17;
case KEY_NAME_INDEX_F18:
return CODE_NAME_INDEX_F18;
case KEY_NAME_INDEX_F19:
return CODE_NAME_INDEX_F19;
case KEY_NAME_INDEX_F20:
return CODE_NAME_INDEX_F20;
#ifndef XP_MACOSX
case KEY_NAME_INDEX_F21:
return CODE_NAME_INDEX_F21;
case KEY_NAME_INDEX_F22:
return CODE_NAME_INDEX_F22;
case KEY_NAME_INDEX_F23:
return CODE_NAME_INDEX_F23;
case KEY_NAME_INDEX_F24:
return CODE_NAME_INDEX_F24;
case KEY_NAME_INDEX_Pause:
return CODE_NAME_INDEX_Pause;
case KEY_NAME_INDEX_PrintScreen:
return CODE_NAME_INDEX_PrintScreen;
case KEY_NAME_INDEX_ScrollLock:
return CODE_NAME_INDEX_ScrollLock;
#endif // #ifndef XP_MACOSX
// NumLock key:
#ifndef XP_MACOSX
case KEY_NAME_INDEX_NumLock:
return CODE_NAME_INDEX_NumLock;
#else
case KEY_NAME_INDEX_Clear:
return CODE_NAME_INDEX_NumLock;
#endif // #ifndef XP_MACOSX #else
// Media keys:
case KEY_NAME_INDEX_AudioVolumeDown:
return CODE_NAME_INDEX_VolumeDown;
case KEY_NAME_INDEX_AudioVolumeMute:
return CODE_NAME_INDEX_VolumeMute;
case KEY_NAME_INDEX_AudioVolumeUp:
return CODE_NAME_INDEX_VolumeUp;
#ifndef XP_MACOSX
case KEY_NAME_INDEX_BrowserBack:
return CODE_NAME_INDEX_BrowserBack;
case KEY_NAME_INDEX_BrowserFavorites:
return CODE_NAME_INDEX_BrowserFavorites;
case KEY_NAME_INDEX_BrowserForward:
return CODE_NAME_INDEX_BrowserForward;
case KEY_NAME_INDEX_BrowserRefresh:
return CODE_NAME_INDEX_BrowserRefresh;
case KEY_NAME_INDEX_BrowserSearch:
return CODE_NAME_INDEX_BrowserSearch;
case KEY_NAME_INDEX_BrowserStop:
return CODE_NAME_INDEX_BrowserStop;
case KEY_NAME_INDEX_MediaPlayPause:
return CODE_NAME_INDEX_MediaPlayPause;
case KEY_NAME_INDEX_MediaStop:
return CODE_NAME_INDEX_MediaStop;
case KEY_NAME_INDEX_MediaTrackNext:
return CODE_NAME_INDEX_MediaTrackNext;
case KEY_NAME_INDEX_MediaTrackPrevious:
return CODE_NAME_INDEX_MediaTrackPrevious;
case KEY_NAME_INDEX_LaunchApplication1:
return CODE_NAME_INDEX_LaunchApp1;
#endif // #ifndef XP_MACOSX
// Only Windows and GTK supports the following multimedia keys.
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
case KEY_NAME_INDEX_BrowserHome:
return CODE_NAME_INDEX_BrowserHome;
case KEY_NAME_INDEX_LaunchApplication2:
return CODE_NAME_INDEX_LaunchApp2;
#endif // #if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
// Only GTK and Android supports the following multimedia keys.
#if defined(MOZ_WIDGET_GTK) || defined(ANDROID)
case KEY_NAME_INDEX_Eject:
return CODE_NAME_INDEX_Eject;
case KEY_NAME_INDEX_WakeUp:
return CODE_NAME_INDEX_WakeUp;
#endif // #if defined(MOZ_WIDGET_GTK) || defined(ANDROID)
// Only Windows does not support Help key (and macOS handled above).
#if !defined(XP_WIN) && !defined(XP_MACOSX)
case KEY_NAME_INDEX_Help:
return CODE_NAME_INDEX_Help;
#endif // #if !defined(XP_WIN) && !defined(XP_MACOSX)
// IME specific keys:
#ifdef XP_WIN
case KEY_NAME_INDEX_Convert:
return CODE_NAME_INDEX_Convert;
case KEY_NAME_INDEX_NonConvert:
return CODE_NAME_INDEX_NonConvert;
case KEY_NAME_INDEX_Alphanumeric:
return CODE_NAME_INDEX_CapsLock;
case KEY_NAME_INDEX_KanaMode:
case KEY_NAME_INDEX_Romaji:
case KEY_NAME_INDEX_Katakana:
case KEY_NAME_INDEX_Hiragana:
return CODE_NAME_INDEX_KanaMode;
case KEY_NAME_INDEX_Hankaku:
case KEY_NAME_INDEX_Zenkaku:
case KEY_NAME_INDEX_KanjiMode:
return CODE_NAME_INDEX_Backquote;
case KEY_NAME_INDEX_HanjaMode:
return CODE_NAME_INDEX_Lang2;
case KEY_NAME_INDEX_HangulMode:
return CODE_NAME_INDEX_Lang1;
#endif // #ifdef XP_WIN
#ifdef MOZ_WIDGET_GTK
case KEY_NAME_INDEX_Convert:
return CODE_NAME_INDEX_Convert;
case KEY_NAME_INDEX_NonConvert:
return CODE_NAME_INDEX_NonConvert;
case KEY_NAME_INDEX_Alphanumeric:
return CODE_NAME_INDEX_CapsLock;
case KEY_NAME_INDEX_HiraganaKatakana:
return CODE_NAME_INDEX_KanaMode;
case KEY_NAME_INDEX_ZenkakuHankaku:
return CODE_NAME_INDEX_Backquote;
#endif // #ifdef MOZ_WIDGET_GTK
#ifdef ANDROID
case KEY_NAME_INDEX_Convert:
return CODE_NAME_INDEX_Convert;
case KEY_NAME_INDEX_NonConvert:
return CODE_NAME_INDEX_NonConvert;
case KEY_NAME_INDEX_HiraganaKatakana:
return CODE_NAME_INDEX_KanaMode;
case KEY_NAME_INDEX_ZenkakuHankaku:
return CODE_NAME_INDEX_Backquote;
case KEY_NAME_INDEX_Eisu:
return CODE_NAME_INDEX_Lang2;
case KEY_NAME_INDEX_KanjiMode:
return CODE_NAME_INDEX_Lang1;
#endif // #ifdef ANDROID
#ifdef XP_MACOSX
case KEY_NAME_INDEX_Eisu:
return CODE_NAME_INDEX_Lang2;
case KEY_NAME_INDEX_KanjiMode:
return CODE_NAME_INDEX_Lang1;
#endif // #ifdef XP_MACOSX
default:
return CODE_NAME_INDEX_UNKNOWN;
}
}
/* 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;
}
}
/******************************************************************************
* mozilla::InternalEditorInputEvent (TextEvents.h)
******************************************************************************/
#define NS_DEFINE_INPUTTYPE(aCPPName, aDOMName) (u"" aDOMName),
const char16_t* const InternalEditorInputEvent::kInputTypeNames[] = {
#include "mozilla/InputTypeList.h"
};
#undef NS_DEFINE_INPUTTYPE
InternalEditorInputEvent::InputTypeHashtable*
InternalEditorInputEvent::sInputTypeHashtable = nullptr;
/* static */
void InternalEditorInputEvent::Shutdown() {
delete sInputTypeHashtable;
sInputTypeHashtable = nullptr;
}
/* static */
void InternalEditorInputEvent::GetDOMInputTypeName(EditorInputType aInputType,
nsAString& aInputTypeName) {
if (static_cast<size_t>(aInputType) >=
static_cast<size_t>(EditorInputType::eUnknown)) {
aInputTypeName.Truncate();
return;
}
MOZ_RELEASE_ASSERT(
static_cast<size_t>(aInputType) < ArrayLength(kInputTypeNames),
"Illegal input type enumeration value");
aInputTypeName.Assign(kInputTypeNames[static_cast<size_t>(aInputType)]);
}
/* static */
EditorInputType InternalEditorInputEvent::GetEditorInputType(
const nsAString& aInputType) {
if (aInputType.IsEmpty()) {
return EditorInputType::eUnknown;
}
if (!sInputTypeHashtable) {
sInputTypeHashtable = new InputTypeHashtable(ArrayLength(kInputTypeNames));
for (size_t i = 0; i < ArrayLength(kInputTypeNames); i++) {
sInputTypeHashtable->Put(nsDependentString(kInputTypeNames[i]),
static_cast<EditorInputType>(i));
}
}
EditorInputType result = EditorInputType::eUnknown;
sInputTypeHashtable->Get(aInputType, &result);
return result;
}
} // namespace mozilla
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