mozilla
/
gecko-dev
зеркало из https://github.com/mozilla/gecko-dev.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность
gecko-dev/widget/cocoa/TextInputHandler.mm

5335 строки
186 KiB
Plaintext
Исходник Ответственный История

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 sw=2 et tw=80: */
/* 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 "TextInputHandler.h"
#include "mozilla/Logging.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/AutoRestore.h"
#include "mozilla/MiscEvents.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/Telemetry.h"
#include "mozilla/TextEventDispatcher.h"
#include "mozilla/TextEvents.h"
#include "nsChildView.h"
#include "nsObjCExceptions.h"
#include "nsBidiUtils.h"
#include "nsToolkit.h"
#include "nsCocoaUtils.h"
#include "WidgetUtils.h"
#include "nsPrintfCString.h"
#include "ComplexTextInputPanel.h"
using namespace mozilla;
using namespace mozilla::widget;
LazyLogModule gLog("TextInputHandlerWidgets");
static const char*
OnOrOff(bool aBool)
{
return aBool ? "ON" : "off";
}
static const char*
TrueOrFalse(bool aBool)
{
return aBool ? "TRUE" : "FALSE";
}
static const char*
GetKeyNameForNativeKeyCode(unsigned short aNativeKeyCode)
{
switch (aNativeKeyCode) {
case kVK_Escape: return "Escape";
case kVK_RightCommand: return "Right-Command";
case kVK_Command: return "Command";
case kVK_Shift: return "Shift";
case kVK_CapsLock: return "CapsLock";
case kVK_Option: return "Option";
case kVK_Control: return "Control";
case kVK_RightShift: return "Right-Shift";
case kVK_RightOption: return "Right-Option";
case kVK_RightControl: return "Right-Control";
case kVK_ANSI_KeypadClear: return "Clear";
case kVK_F1: return "F1";
case kVK_F2: return "F2";
case kVK_F3: return "F3";
case kVK_F4: return "F4";
case kVK_F5: return "F5";
case kVK_F6: return "F6";
case kVK_F7: return "F7";
case kVK_F8: return "F8";
case kVK_F9: return "F9";
case kVK_F10: return "F10";
case kVK_F11: return "F11";
case kVK_F12: return "F12";
case kVK_F13: return "F13/PrintScreen";
case kVK_F14: return "F14/ScrollLock";
case kVK_F15: return "F15/Pause";
case kVK_ANSI_Keypad0: return "NumPad-0";
case kVK_ANSI_Keypad1: return "NumPad-1";
case kVK_ANSI_Keypad2: return "NumPad-2";
case kVK_ANSI_Keypad3: return "NumPad-3";
case kVK_ANSI_Keypad4: return "NumPad-4";
case kVK_ANSI_Keypad5: return "NumPad-5";
case kVK_ANSI_Keypad6: return "NumPad-6";
case kVK_ANSI_Keypad7: return "NumPad-7";
case kVK_ANSI_Keypad8: return "NumPad-8";
case kVK_ANSI_Keypad9: return "NumPad-9";
case kVK_ANSI_KeypadMultiply: return "NumPad-*";
case kVK_ANSI_KeypadPlus: return "NumPad-+";
case kVK_ANSI_KeypadMinus: return "NumPad--";
case kVK_ANSI_KeypadDecimal: return "NumPad-.";
case kVK_ANSI_KeypadDivide: return "NumPad-/";
case kVK_ANSI_KeypadEquals: return "NumPad-=";
case kVK_ANSI_KeypadEnter: return "NumPad-Enter";
case kVK_Return: return "Return";
case kVK_Powerbook_KeypadEnter: return "NumPad-EnterOnPowerBook";
case kVK_PC_Insert: return "Insert/Help";
case kVK_PC_Delete: return "Delete";
case kVK_Tab: return "Tab";
case kVK_PC_Backspace: return "Backspace";
case kVK_Home: return "Home";
case kVK_End: return "End";
case kVK_PageUp: return "PageUp";
case kVK_PageDown: return "PageDown";
case kVK_LeftArrow: return "LeftArrow";
case kVK_RightArrow: return "RightArrow";
case kVK_UpArrow: return "UpArrow";
case kVK_DownArrow: return "DownArrow";
case kVK_PC_ContextMenu: return "ContextMenu";
case kVK_Function: return "Function";
case kVK_VolumeUp: return "VolumeUp";
case kVK_VolumeDown: return "VolumeDown";
case kVK_Mute: return "Mute";
case kVK_ISO_Section: return "ISO_Section";
case kVK_JIS_Yen: return "JIS_Yen";
case kVK_JIS_Underscore: return "JIS_Underscore";
case kVK_JIS_KeypadComma: return "JIS_KeypadComma";
case kVK_JIS_Eisu: return "JIS_Eisu";
case kVK_JIS_Kana: return "JIS_Kana";
case kVK_ANSI_A: return "A";
case kVK_ANSI_B: return "B";
case kVK_ANSI_C: return "C";
case kVK_ANSI_D: return "D";
case kVK_ANSI_E: return "E";
case kVK_ANSI_F: return "F";
case kVK_ANSI_G: return "G";
case kVK_ANSI_H: return "H";
case kVK_ANSI_I: return "I";
case kVK_ANSI_J: return "J";
case kVK_ANSI_K: return "K";
case kVK_ANSI_L: return "L";
case kVK_ANSI_M: return "M";
case kVK_ANSI_N: return "N";
case kVK_ANSI_O: return "O";
case kVK_ANSI_P: return "P";
case kVK_ANSI_Q: return "Q";
case kVK_ANSI_R: return "R";
case kVK_ANSI_S: return "S";
case kVK_ANSI_T: return "T";
case kVK_ANSI_U: return "U";
case kVK_ANSI_V: return "V";
case kVK_ANSI_W: return "W";
case kVK_ANSI_X: return "X";
case kVK_ANSI_Y: return "Y";
case kVK_ANSI_Z: return "Z";
case kVK_ANSI_1: return "1";
case kVK_ANSI_2: return "2";
case kVK_ANSI_3: return "3";
case kVK_ANSI_4: return "4";
case kVK_ANSI_5: return "5";
case kVK_ANSI_6: return "6";
case kVK_ANSI_7: return "7";
case kVK_ANSI_8: return "8";
case kVK_ANSI_9: return "9";
case kVK_ANSI_0: return "0";
case kVK_ANSI_Equal: return "Equal";
case kVK_ANSI_Minus: return "Minus";
case kVK_ANSI_RightBracket: return "RightBracket";
case kVK_ANSI_LeftBracket: return "LeftBracket";
case kVK_ANSI_Quote: return "Quote";
case kVK_ANSI_Semicolon: return "Semicolon";
case kVK_ANSI_Backslash: return "Backslash";
case kVK_ANSI_Comma: return "Comma";
case kVK_ANSI_Slash: return "Slash";
case kVK_ANSI_Period: return "Period";
case kVK_ANSI_Grave: return "Grave";
default: return "undefined";
}
}
static const char*
GetCharacters(const nsAString& aString)
{
if (aString.IsEmpty()) {
return "";
}
nsAutoString escapedStr;
for (uint32_t i = 0; i < aString.Length(); i++) {
char16_t ch = aString.CharAt(i);
if (ch < 0x20) {
nsPrintfCString utf8str("(U+%04X)", ch);
escapedStr += NS_ConvertUTF8toUTF16(utf8str);
} else if (ch <= 0x7E) {
escapedStr += ch;
} else {
nsPrintfCString utf8str("(U+%04X)", ch);
escapedStr += ch;
escapedStr += NS_ConvertUTF8toUTF16(utf8str);
}
}
// the result will be freed automatically by cocoa.
NSString* result = nsCocoaUtils::ToNSString(escapedStr);
return [result UTF8String];
}
static const char*
GetCharacters(const NSString* aString)
{
nsAutoString str;
nsCocoaUtils::GetStringForNSString(aString, str);
return GetCharacters(str);
}
static const char*
GetCharacters(const CFStringRef aString)
{
const NSString* str = reinterpret_cast<const NSString*>(aString);
return GetCharacters(str);
}
static const char*
GetNativeKeyEventType(NSEvent* aNativeEvent)
{
switch ([aNativeEvent type]) {
case NSKeyDown: return "NSKeyDown";
case NSKeyUp: return "NSKeyUp";
case NSFlagsChanged: return "NSFlagsChanged";
default: return "not key event";
}
}
static const char*
GetGeckoKeyEventType(const WidgetEvent& aEvent)
{
switch (aEvent.mMessage) {
case eKeyDown: return "eKeyDown";
case eKeyUp: return "eKeyUp";
case eKeyPress: return "eKeyPress";
default: return "not key event";
}
}
static const char*
GetWindowLevelName(NSInteger aWindowLevel)
{
switch (aWindowLevel) {
case kCGBaseWindowLevelKey:
return "kCGBaseWindowLevelKey (NSNormalWindowLevel)";
case kCGMinimumWindowLevelKey:
return "kCGMinimumWindowLevelKey";
case kCGDesktopWindowLevelKey:
return "kCGDesktopWindowLevelKey";
case kCGBackstopMenuLevelKey:
return "kCGBackstopMenuLevelKey";
case kCGNormalWindowLevelKey:
return "kCGNormalWindowLevelKey";
case kCGFloatingWindowLevelKey:
return "kCGFloatingWindowLevelKey (NSFloatingWindowLevel)";
case kCGTornOffMenuWindowLevelKey:
return "kCGTornOffMenuWindowLevelKey (NSSubmenuWindowLevel, NSTornOffMenuWindowLevel)";
case kCGDockWindowLevelKey:
return "kCGDockWindowLevelKey (NSDockWindowLevel)";
case kCGMainMenuWindowLevelKey:
return "kCGMainMenuWindowLevelKey (NSMainMenuWindowLevel)";
case kCGStatusWindowLevelKey:
return "kCGStatusWindowLevelKey (NSStatusWindowLevel)";
case kCGModalPanelWindowLevelKey:
return "kCGModalPanelWindowLevelKey (NSModalPanelWindowLevel)";
case kCGPopUpMenuWindowLevelKey:
return "kCGPopUpMenuWindowLevelKey (NSPopUpMenuWindowLevel)";
case kCGDraggingWindowLevelKey:
return "kCGDraggingWindowLevelKey";
case kCGScreenSaverWindowLevelKey:
return "kCGScreenSaverWindowLevelKey (NSScreenSaverWindowLevel)";
case kCGMaximumWindowLevelKey:
return "kCGMaximumWindowLevelKey";
case kCGOverlayWindowLevelKey:
return "kCGOverlayWindowLevelKey";
case kCGHelpWindowLevelKey:
return "kCGHelpWindowLevelKey";
case kCGUtilityWindowLevelKey:
return "kCGUtilityWindowLevelKey";
case kCGDesktopIconWindowLevelKey:
return "kCGDesktopIconWindowLevelKey";
case kCGCursorWindowLevelKey:
return "kCGCursorWindowLevelKey";
case kCGNumberOfWindowLevelKeys:
return "kCGNumberOfWindowLevelKeys";
default:
return "unknown window level";
}
}
static bool
IsControlChar(uint32_t aCharCode)
{
return aCharCode < ' ' || aCharCode == 0x7F;
}
static uint32_t gHandlerInstanceCount = 0;
static void
EnsureToLogAllKeyboardLayoutsAndIMEs()
{
static bool sDone = false;
if (!sDone) {
sDone = true;
TextInputHandler::DebugPrintAllKeyboardLayouts();
IMEInputHandler::DebugPrintAllIMEModes();
}
}
#pragma mark -
/******************************************************************************
*
* TISInputSourceWrapper implementation
*
******************************************************************************/
TISInputSourceWrapper* TISInputSourceWrapper::sCurrentInputSource = nullptr;
// static
TISInputSourceWrapper&
TISInputSourceWrapper::CurrentInputSource()
{
if (!sCurrentInputSource) {
sCurrentInputSource = new TISInputSourceWrapper();
}
if (!sCurrentInputSource->IsInitializedByCurrentInputSource()) {
sCurrentInputSource->InitByCurrentInputSource();
}
return *sCurrentInputSource;
}
// static
void
TISInputSourceWrapper::Shutdown()
{
if (!sCurrentInputSource) {
return;
}
sCurrentInputSource->Clear();
delete sCurrentInputSource;
sCurrentInputSource = nullptr;
}
bool
TISInputSourceWrapper::TranslateToString(UInt32 aKeyCode, UInt32 aModifiers,
UInt32 aKbType, nsAString &aStr)
{
aStr.Truncate();
const UCKeyboardLayout* UCKey = GetUCKeyboardLayout();
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::TranslateToString, aKeyCode=0x%X, "
"aModifiers=0x%X, aKbType=0x%X UCKey=%p\n "
"Shift: %s, Ctrl: %s, Opt: %s, Cmd: %s, CapsLock: %s, NumLock: %s",
this, static_cast<unsigned int>(aKeyCode), static_cast<unsigned int>(aModifiers),
static_cast<unsigned int>(aKbType), UCKey,
OnOrOff(aModifiers & shiftKey), OnOrOff(aModifiers & controlKey),
OnOrOff(aModifiers & optionKey), OnOrOff(aModifiers & cmdKey),
OnOrOff(aModifiers & alphaLock),
OnOrOff(aModifiers & kEventKeyModifierNumLockMask)));
NS_ENSURE_TRUE(UCKey, false);
UInt32 deadKeyState = 0;
UniCharCount len;
UniChar chars[5];
OSStatus err = ::UCKeyTranslate(UCKey, aKeyCode,
kUCKeyActionDown, aModifiers >> 8,
aKbType, kUCKeyTranslateNoDeadKeysMask,
&deadKeyState, 5, &len, chars);
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::TranslateToString, err=0x%X, len=%zu",
this, static_cast<int>(err), len));
NS_ENSURE_TRUE(err == noErr, false);
if (len == 0) {
return true;
}
if (!aStr.SetLength(len, fallible)) {
return false;
}
NS_ASSERTION(sizeof(char16_t) == sizeof(UniChar),
"size of char16_t and size of UniChar are different");
memcpy(aStr.BeginWriting(), chars, len * sizeof(char16_t));
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::TranslateToString, aStr=\"%s\"",
this, NS_ConvertUTF16toUTF8(aStr).get()));
return true;
}
uint32_t
TISInputSourceWrapper::TranslateToChar(UInt32 aKeyCode, UInt32 aModifiers,
UInt32 aKbType)
{
nsAutoString str;
if (!TranslateToString(aKeyCode, aModifiers, aKbType, str) ||
str.Length() != 1) {
return 0;
}
return static_cast<uint32_t>(str.CharAt(0));
}
bool
TISInputSourceWrapper::IsDeadKey(NSEvent* aNativeKeyEvent)
{
if ([[aNativeKeyEvent characters] length]) {
return false;
}
// Assmue that if control key or command key is pressed, it's not a dead key.
NSUInteger cocoaState = [aNativeKeyEvent modifierFlags];
if (cocoaState & (NSControlKeyMask | NSCommandKeyMask)) {
return false;
}
UInt32 nativeKeyCode = [aNativeKeyEvent keyCode];
switch (nativeKeyCode) {
case kVK_ANSI_A:
case kVK_ANSI_B:
case kVK_ANSI_C:
case kVK_ANSI_D:
case kVK_ANSI_E:
case kVK_ANSI_F:
case kVK_ANSI_G:
case kVK_ANSI_H:
case kVK_ANSI_I:
case kVK_ANSI_J:
case kVK_ANSI_K:
case kVK_ANSI_L:
case kVK_ANSI_M:
case kVK_ANSI_N:
case kVK_ANSI_O:
case kVK_ANSI_P:
case kVK_ANSI_Q:
case kVK_ANSI_R:
case kVK_ANSI_S:
case kVK_ANSI_T:
case kVK_ANSI_U:
case kVK_ANSI_V:
case kVK_ANSI_W:
case kVK_ANSI_X:
case kVK_ANSI_Y:
case kVK_ANSI_Z:
case kVK_ANSI_1:
case kVK_ANSI_2:
case kVK_ANSI_3:
case kVK_ANSI_4:
case kVK_ANSI_5:
case kVK_ANSI_6:
case kVK_ANSI_7:
case kVK_ANSI_8:
case kVK_ANSI_9:
case kVK_ANSI_0:
case kVK_ANSI_Equal:
case kVK_ANSI_Minus:
case kVK_ANSI_RightBracket:
case kVK_ANSI_LeftBracket:
case kVK_ANSI_Quote:
case kVK_ANSI_Semicolon:
case kVK_ANSI_Backslash:
case kVK_ANSI_Comma:
case kVK_ANSI_Slash:
case kVK_ANSI_Period:
case kVK_ANSI_Grave:
case kVK_JIS_Yen:
case kVK_JIS_Underscore:
break;
default:
// Let's assume that dead key can be only a printable key in standard
// position.
return false;
}
// If TranslateToChar() returns non-zero value, that means that
// the key may input a character with different dead key state.
UInt32 kbType = GetKbdType();
UInt32 carbonState = nsCocoaUtils::ConvertToCarbonModifier(cocoaState);
return IsDeadKey(nativeKeyCode, carbonState, kbType);
}
bool
TISInputSourceWrapper::IsDeadKey(UInt32 aKeyCode,
UInt32 aModifiers,
UInt32 aKbType)
{
const UCKeyboardLayout* UCKey = GetUCKeyboardLayout();
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::IsDeadKey, aKeyCode=0x%X, "
"aModifiers=0x%X, aKbType=0x%X UCKey=%p\n "
"Shift: %s, Ctrl: %s, Opt: %s, Cmd: %s, CapsLock: %s, NumLock: %s",
this, static_cast<unsigned int>(aKeyCode), static_cast<unsigned int>(aModifiers),
static_cast<unsigned int>(aKbType), UCKey,
OnOrOff(aModifiers & shiftKey), OnOrOff(aModifiers & controlKey),
OnOrOff(aModifiers & optionKey), OnOrOff(aModifiers & cmdKey),
OnOrOff(aModifiers & alphaLock),
OnOrOff(aModifiers & kEventKeyModifierNumLockMask)));
if (NS_WARN_IF(!UCKey)) {
return false;
}
UInt32 deadKeyState = 0;
UniCharCount len;
UniChar chars[5];
OSStatus err = ::UCKeyTranslate(UCKey, aKeyCode,
kUCKeyActionDown, aModifiers >> 8,
aKbType, 0,
&deadKeyState, 5, &len, chars);
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::IsDeadKey, err=0x%X, "
"len=%zu, deadKeyState=%u",
this, static_cast<int>(err), len, deadKeyState));
if (NS_WARN_IF(err != noErr)) {
return false;
}
return deadKeyState != 0;
}
void
TISInputSourceWrapper::InitByInputSourceID(const char* aID)
{
Clear();
if (!aID)
return;
CFStringRef idstr = ::CFStringCreateWithCString(kCFAllocatorDefault, aID,
kCFStringEncodingASCII);
InitByInputSourceID(idstr);
::CFRelease(idstr);
}
void
TISInputSourceWrapper::InitByInputSourceID(const nsString& aID)
{
Clear();
if (aID.IsEmpty())
return;
CFStringRef idstr = ::CFStringCreateWithCharacters(kCFAllocatorDefault,
reinterpret_cast<const UniChar*>(aID.get()),
aID.Length());
InitByInputSourceID(idstr);
::CFRelease(idstr);
}
void
TISInputSourceWrapper::InitByInputSourceID(const CFStringRef aID)
{
Clear();
if (!aID)
return;
const void* keys[] = { kTISPropertyInputSourceID };
const void* values[] = { aID };
CFDictionaryRef filter =
::CFDictionaryCreate(kCFAllocatorDefault, keys, values, 1, NULL, NULL);
NS_ASSERTION(filter, "failed to create the filter");
mInputSourceList = ::TISCreateInputSourceList(filter, true);
::CFRelease(filter);
if (::CFArrayGetCount(mInputSourceList) > 0) {
mInputSource = static_cast<TISInputSourceRef>(
const_cast<void *>(::CFArrayGetValueAtIndex(mInputSourceList, 0)));
if (IsKeyboardLayout()) {
mKeyboardLayout = mInputSource;
}
}
}
void
TISInputSourceWrapper::InitByLayoutID(SInt32 aLayoutID,
bool aOverrideKeyboard)
{
// NOTE: Doument new layout IDs in TextInputHandler.h when you add ones.
switch (aLayoutID) {
case 0:
InitByInputSourceID("com.apple.keylayout.US");
break;
case 1:
InitByInputSourceID("com.apple.keylayout.Greek");
break;
case 2:
InitByInputSourceID("com.apple.keylayout.German");
break;
case 3:
InitByInputSourceID("com.apple.keylayout.Swedish-Pro");
break;
case 4:
InitByInputSourceID("com.apple.keylayout.DVORAK-QWERTYCMD");
break;
case 5:
InitByInputSourceID("com.apple.keylayout.Thai");
break;
case 6:
InitByInputSourceID("com.apple.keylayout.Arabic");
break;
case 7:
InitByInputSourceID("com.apple.keylayout.ArabicPC");
break;
case 8:
InitByInputSourceID("com.apple.keylayout.French");
break;
case 9:
InitByInputSourceID("com.apple.keylayout.Hebrew");
break;
case 10:
InitByInputSourceID("com.apple.keylayout.Lithuanian");
break;
case 11:
InitByInputSourceID("com.apple.keylayout.Norwegian");
break;
case 12:
InitByInputSourceID("com.apple.keylayout.Spanish");
break;
default:
Clear();
break;
}
mOverrideKeyboard = aOverrideKeyboard;
}
void
TISInputSourceWrapper::InitByCurrentInputSource()
{
Clear();
mInputSource = ::TISCopyCurrentKeyboardInputSource();
mKeyboardLayout = ::TISCopyInputMethodKeyboardLayoutOverride();
if (!mKeyboardLayout) {
mKeyboardLayout = ::TISCopyCurrentKeyboardLayoutInputSource();
}
// If this causes composition, the current keyboard layout may input non-ASCII
// characters such as Japanese Kana characters or Hangul characters.
// However, we need to set ASCII characters to DOM key events for consistency
// with other platforms.
if (IsOpenedIMEMode()) {
TISInputSourceWrapper tis(mKeyboardLayout);
if (!tis.IsASCIICapable()) {
mKeyboardLayout =
::TISCopyCurrentASCIICapableKeyboardLayoutInputSource();
}
}
}
void
TISInputSourceWrapper::InitByCurrentKeyboardLayout()
{
Clear();
mInputSource = ::TISCopyCurrentKeyboardLayoutInputSource();
mKeyboardLayout = mInputSource;
}
void
TISInputSourceWrapper::InitByCurrentASCIICapableInputSource()
{
Clear();
mInputSource = ::TISCopyCurrentASCIICapableKeyboardInputSource();
mKeyboardLayout = ::TISCopyInputMethodKeyboardLayoutOverride();
if (mKeyboardLayout) {
TISInputSourceWrapper tis(mKeyboardLayout);
if (!tis.IsASCIICapable()) {
mKeyboardLayout = nullptr;
}
}
if (!mKeyboardLayout) {
mKeyboardLayout =
::TISCopyCurrentASCIICapableKeyboardLayoutInputSource();
}
}
void
TISInputSourceWrapper::InitByCurrentASCIICapableKeyboardLayout()
{
Clear();
mInputSource = ::TISCopyCurrentASCIICapableKeyboardLayoutInputSource();
mKeyboardLayout = mInputSource;
}
void
TISInputSourceWrapper::InitByCurrentInputMethodKeyboardLayoutOverride()
{
Clear();
mInputSource = ::TISCopyInputMethodKeyboardLayoutOverride();
mKeyboardLayout = mInputSource;
}
void
TISInputSourceWrapper::InitByTISInputSourceRef(TISInputSourceRef aInputSource)
{
Clear();
mInputSource = aInputSource;
if (IsKeyboardLayout()) {
mKeyboardLayout = mInputSource;
}
}
void
TISInputSourceWrapper::InitByLanguage(CFStringRef aLanguage)
{
Clear();
mInputSource = ::TISCopyInputSourceForLanguage(aLanguage);
if (IsKeyboardLayout()) {
mKeyboardLayout = mInputSource;
}
}
const UCKeyboardLayout*
TISInputSourceWrapper::GetUCKeyboardLayout()
{
NS_ENSURE_TRUE(mKeyboardLayout, nullptr);
if (mUCKeyboardLayout) {
return mUCKeyboardLayout;
}
CFDataRef uchr = static_cast<CFDataRef>(
::TISGetInputSourceProperty(mKeyboardLayout,
kTISPropertyUnicodeKeyLayoutData));
// We should be always able to get the layout here.
NS_ENSURE_TRUE(uchr, nullptr);
mUCKeyboardLayout =
reinterpret_cast<const UCKeyboardLayout*>(CFDataGetBytePtr(uchr));
return mUCKeyboardLayout;
}
bool
TISInputSourceWrapper::GetBoolProperty(const CFStringRef aKey)
{
CFBooleanRef ret = static_cast<CFBooleanRef>(
::TISGetInputSourceProperty(mInputSource, aKey));
return ::CFBooleanGetValue(ret);
}
bool
TISInputSourceWrapper::GetStringProperty(const CFStringRef aKey,
CFStringRef &aStr)
{
aStr = static_cast<CFStringRef>(
::TISGetInputSourceProperty(mInputSource, aKey));
return aStr != nullptr;
}
bool
TISInputSourceWrapper::GetStringProperty(const CFStringRef aKey,
nsAString &aStr)
{
CFStringRef str;
GetStringProperty(aKey, str);
nsCocoaUtils::GetStringForNSString((const NSString*)str, aStr);
return !aStr.IsEmpty();
}
bool
TISInputSourceWrapper::IsOpenedIMEMode()
{
NS_ENSURE_TRUE(mInputSource, false);
if (!IsIMEMode())
return false;
return !IsASCIICapable();
}
bool
TISInputSourceWrapper::IsIMEMode()
{
NS_ENSURE_TRUE(mInputSource, false);
CFStringRef str;
GetInputSourceType(str);
NS_ENSURE_TRUE(str, false);
return ::CFStringCompare(kTISTypeKeyboardInputMode,
str, 0) == kCFCompareEqualTo;
}
bool
TISInputSourceWrapper::IsKeyboardLayout()
{
NS_ENSURE_TRUE(mInputSource, false);
CFStringRef str;
GetInputSourceType(str);
NS_ENSURE_TRUE(str, false);
return ::CFStringCompare(kTISTypeKeyboardLayout,
str, 0) == kCFCompareEqualTo;
}
bool
TISInputSourceWrapper::GetLanguageList(CFArrayRef &aLanguageList)
{
NS_ENSURE_TRUE(mInputSource, false);
aLanguageList = static_cast<CFArrayRef>(
::TISGetInputSourceProperty(mInputSource,
kTISPropertyInputSourceLanguages));
return aLanguageList != nullptr;
}
bool
TISInputSourceWrapper::GetPrimaryLanguage(CFStringRef &aPrimaryLanguage)
{
NS_ENSURE_TRUE(mInputSource, false);
CFArrayRef langList;
NS_ENSURE_TRUE(GetLanguageList(langList), false);
if (::CFArrayGetCount(langList) == 0)
return false;
aPrimaryLanguage =
static_cast<CFStringRef>(::CFArrayGetValueAtIndex(langList, 0));
return aPrimaryLanguage != nullptr;
}
bool
TISInputSourceWrapper::GetPrimaryLanguage(nsAString &aPrimaryLanguage)
{
NS_ENSURE_TRUE(mInputSource, false);
CFStringRef primaryLanguage;
NS_ENSURE_TRUE(GetPrimaryLanguage(primaryLanguage), false);
nsCocoaUtils::GetStringForNSString((const NSString*)primaryLanguage,
aPrimaryLanguage);
return !aPrimaryLanguage.IsEmpty();
}
bool
TISInputSourceWrapper::IsForRTLLanguage()
{
if (mIsRTL < 0) {
// Get the input character of the 'A' key of ANSI keyboard layout.
nsAutoString str;
bool ret = TranslateToString(kVK_ANSI_A, 0, eKbdType_ANSI, str);
NS_ENSURE_TRUE(ret, ret);
char16_t ch = str.IsEmpty() ? char16_t(0) : str.CharAt(0);
mIsRTL = UTF16_CODE_UNIT_IS_BIDI(ch);
}
return mIsRTL != 0;
}
bool
TISInputSourceWrapper::IsForJapaneseLanguage()
{
nsAutoString lang;
GetPrimaryLanguage(lang);
return lang.EqualsLiteral("ja");
}
bool
TISInputSourceWrapper::IsInitializedByCurrentInputSource()
{
return mInputSource == ::TISCopyCurrentKeyboardInputSource();
}
void
TISInputSourceWrapper::Select()
{
if (!mInputSource)
return;
::TISSelectInputSource(mInputSource);
}
void
TISInputSourceWrapper::Clear()
{
// Clear() is always called when TISInputSourceWrappper is created.
EnsureToLogAllKeyboardLayoutsAndIMEs();
if (mInputSourceList) {
::CFRelease(mInputSourceList);
}
mInputSourceList = nullptr;
mInputSource = nullptr;
mKeyboardLayout = nullptr;
mIsRTL = -1;
mUCKeyboardLayout = nullptr;
mOverrideKeyboard = false;
}
bool
TISInputSourceWrapper::IsPrintableKeyEvent(NSEvent* aNativeKeyEvent) const
{
UInt32 nativeKeyCode = [aNativeKeyEvent keyCode];
bool isPrintableKey = !TextInputHandler::IsSpecialGeckoKey(nativeKeyCode);
if (isPrintableKey &&
[aNativeKeyEvent type] != NSKeyDown &&
[aNativeKeyEvent type] != NSKeyUp) {
NS_WARNING("Why the printable key doesn't cause NSKeyDown or NSKeyUp?");
isPrintableKey = false;
}
return isPrintableKey;
}
UInt32
TISInputSourceWrapper::GetKbdType() const
{
// If a keyboard layout override is set, we also need to force the keyboard
// type to something ANSI to avoid test failures on machines with JIS
// keyboards (since the pair of keyboard layout and physical keyboard type
// form the actual key layout). This assumes that the test setting the
// override was written assuming an ANSI keyboard.
return mOverrideKeyboard ? eKbdType_ANSI : ::LMGetKbdType();
}
void
TISInputSourceWrapper::ComputeInsertStringForCharCode(
NSEvent* aNativeKeyEvent,
const WidgetKeyboardEvent& aKeyEvent,
const nsAString* aInsertString,
nsAString& aResult)
{
if (aInsertString) {
// If the caller expects that the aInsertString will be input, we shouldn't
// change it.
aResult = *aInsertString;
} else if (IsPrintableKeyEvent(aNativeKeyEvent)) {
// If IME is open, [aNativeKeyEvent characters] may be a character
// which will be appended to the composition string. However, especially,
// while IME is disabled, most users and developers expect the key event
// works as IME closed. So, we should compute the aResult with
// the ASCII capable keyboard layout.
// NOTE: Such keyboard layouts typically change the layout to its ASCII
// capable layout when Command key is pressed. And we don't worry
// when Control key is pressed too because it causes inputting
// control characters.
// Additionally, if the key event doesn't input any text, the event may be
// dead key event. In this case, the charCode value should be the dead
// character.
UInt32 nativeKeyCode = [aNativeKeyEvent keyCode];
if ((!aKeyEvent.IsMeta() && !aKeyEvent.IsControl() && IsOpenedIMEMode()) ||
![[aNativeKeyEvent characters] length]) {
UInt32 state =
nsCocoaUtils::ConvertToCarbonModifier([aNativeKeyEvent modifierFlags]);
uint32_t ch = TranslateToChar(nativeKeyCode, state, GetKbdType());
if (ch) {
aResult = ch;
}
} else {
// If the caller isn't sure what string will be input, let's use
// characters of NSEvent.
nsCocoaUtils::GetStringForNSString([aNativeKeyEvent characters], aResult);
}
// If control key is pressed and the eventChars is a non-printable control
// character, we should convert it to ASCII alphabet.
if (aKeyEvent.IsControl() &&
!aResult.IsEmpty() && aResult[0] <= char16_t(26)) {
aResult = (aKeyEvent.IsShift() ^ aKeyEvent.IsCapsLocked()) ?
static_cast<char16_t>(aResult[0] + ('A' - 1)) :
static_cast<char16_t>(aResult[0] + ('a' - 1));
}
// If Meta key is pressed, it may cause to switch the keyboard layout like
// Arabic, Russian, Hebrew, Greek and Dvorak-QWERTY.
else if (aKeyEvent.IsMeta() &&
!(aKeyEvent.IsControl() || aKeyEvent.IsAlt())) {
UInt32 kbType = GetKbdType();
UInt32 numLockState =
aKeyEvent.IsNumLocked() ? kEventKeyModifierNumLockMask : 0;
UInt32 capsLockState = aKeyEvent.IsCapsLocked() ? alphaLock : 0;
UInt32 shiftState = aKeyEvent.IsShift() ? shiftKey : 0;
uint32_t uncmdedChar =
TranslateToChar(nativeKeyCode, numLockState, kbType);
uint32_t cmdedChar =
TranslateToChar(nativeKeyCode, cmdKey | numLockState, kbType);
// If we can make a good guess at the characters that the user would
// expect this key combination to produce (with and without Shift) then
// use those characters. This also corrects for CapsLock.
uint32_t ch = 0;
if (uncmdedChar == cmdedChar) {
// The characters produced with Command seem similar to those without
// Command.
ch = TranslateToChar(nativeKeyCode,
shiftState | capsLockState | numLockState, kbType);
} else {
TISInputSourceWrapper USLayout("com.apple.keylayout.US");
uint32_t uncmdedUSChar =
USLayout.TranslateToChar(nativeKeyCode, numLockState, kbType);
// If it looks like characters from US keyboard layout when Command key
// is pressed, we should compute a character in the layout.
if (uncmdedUSChar == cmdedChar) {
ch = USLayout.TranslateToChar(nativeKeyCode,
shiftState | capsLockState | numLockState, kbType);
}
}
// If there is a more preferred character for the commanded key event,
// we should use it.
if (ch) {
aResult = ch;
}
}
}
// Remove control characters which shouldn't be inputted on editor.
// XXX Currently, we don't find any cases inserting control characters with
// printable character. So, just checking first character is enough.
if (!aResult.IsEmpty() && IsControlChar(aResult[0])) {
aResult.Truncate();
}
}
void
TISInputSourceWrapper::InitKeyEvent(NSEvent *aNativeKeyEvent,
WidgetKeyboardEvent& aKeyEvent,
bool aIsProcessedByIME,
const nsAString *aInsertString)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
MOZ_ASSERT(!aIsProcessedByIME || aKeyEvent.mMessage != eKeyPress,
"eKeyPress event should not be marked as proccessed by IME");
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::InitKeyEvent, aNativeKeyEvent=%p, "
"aKeyEvent.mMessage=%s, aProcessedByIME=%s, aInsertString=%p, "
"IsOpenedIMEMode()=%s",
this, aNativeKeyEvent, GetGeckoKeyEventType(aKeyEvent),
TrueOrFalse(aIsProcessedByIME), aInsertString,
TrueOrFalse(IsOpenedIMEMode())));
if (NS_WARN_IF(!aNativeKeyEvent)) {
return;
}
nsCocoaUtils::InitInputEvent(aKeyEvent, aNativeKeyEvent);
// This is used only while dispatching the event (which is a synchronous
// call), so there is no need to retain and release this data.
aKeyEvent.mNativeKeyEvent = aNativeKeyEvent;
// Fill in fields used for Cocoa NPAPI plugins
if ([aNativeKeyEvent type] == NSKeyDown ||
[aNativeKeyEvent type] == NSKeyUp) {
aKeyEvent.mNativeKeyCode = [aNativeKeyEvent keyCode];
aKeyEvent.mNativeModifierFlags = [aNativeKeyEvent modifierFlags];
nsAutoString nativeChars;
nsCocoaUtils::GetStringForNSString([aNativeKeyEvent characters], nativeChars);
aKeyEvent.mNativeCharacters.Assign(nativeChars);
nsAutoString nativeCharsIgnoringModifiers;
nsCocoaUtils::GetStringForNSString([aNativeKeyEvent charactersIgnoringModifiers], nativeCharsIgnoringModifiers);
aKeyEvent.mNativeCharactersIgnoringModifiers.Assign(nativeCharsIgnoringModifiers);
} else if ([aNativeKeyEvent type] == NSFlagsChanged) {
aKeyEvent.mNativeKeyCode = [aNativeKeyEvent keyCode];
aKeyEvent.mNativeModifierFlags = [aNativeKeyEvent modifierFlags];
}
aKeyEvent.mRefPoint = LayoutDeviceIntPoint(0, 0);
UInt32 kbType = GetKbdType();
UInt32 nativeKeyCode = [aNativeKeyEvent keyCode];
// macOS handles dead key as IME. If the key is first key press of dead
// key, we should use KEY_NAME_INDEX_Dead for first (dead) key event.
// So, if aIsProcessedByIME is true, it may be dead key. Let's check
// if current key event is a dead key's keydown event.
bool isProcessedByIME =
aIsProcessedByIME &&
!TISInputSourceWrapper::CurrentInputSource().IsDeadKey(aNativeKeyEvent);
aKeyEvent.mKeyCode =
isProcessedByIME ?
NS_VK_PROCESSKEY :
ComputeGeckoKeyCode(nativeKeyCode, kbType, aKeyEvent.IsMeta());
switch (nativeKeyCode) {
case kVK_Command:
case kVK_Shift:
case kVK_Option:
case kVK_Control:
aKeyEvent.mLocation = eKeyLocationLeft;
break;
case kVK_RightCommand:
case kVK_RightShift:
case kVK_RightOption:
case kVK_RightControl:
aKeyEvent.mLocation = eKeyLocationRight;
break;
case kVK_ANSI_Keypad0:
case kVK_ANSI_Keypad1:
case kVK_ANSI_Keypad2:
case kVK_ANSI_Keypad3:
case kVK_ANSI_Keypad4:
case kVK_ANSI_Keypad5:
case kVK_ANSI_Keypad6:
case kVK_ANSI_Keypad7:
case kVK_ANSI_Keypad8:
case kVK_ANSI_Keypad9:
case kVK_ANSI_KeypadMultiply:
case kVK_ANSI_KeypadPlus:
case kVK_ANSI_KeypadMinus:
case kVK_ANSI_KeypadDecimal:
case kVK_ANSI_KeypadDivide:
case kVK_ANSI_KeypadEquals:
case kVK_ANSI_KeypadEnter:
case kVK_JIS_KeypadComma:
case kVK_Powerbook_KeypadEnter:
aKeyEvent.mLocation = eKeyLocationNumpad;
break;
default:
aKeyEvent.mLocation = eKeyLocationStandard;
break;
}
aKeyEvent.mIsRepeat =
([aNativeKeyEvent type] == NSKeyDown) ? [aNativeKeyEvent isARepeat] : false;
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::InitKeyEvent, "
"shift=%s, ctrl=%s, alt=%s, meta=%s",
this, OnOrOff(aKeyEvent.IsShift()), OnOrOff(aKeyEvent.IsControl()),
OnOrOff(aKeyEvent.IsAlt()), OnOrOff(aKeyEvent.IsMeta())));
if (isProcessedByIME) {
aKeyEvent.mKeyNameIndex = KEY_NAME_INDEX_Process;
} else if (IsPrintableKeyEvent(aNativeKeyEvent)) {
aKeyEvent.mKeyNameIndex = KEY_NAME_INDEX_USE_STRING;
// If insertText calls this method, let's use the string.
if (aInsertString && !aInsertString->IsEmpty() &&
!IsControlChar((*aInsertString)[0])) {
aKeyEvent.mKeyValue = *aInsertString;
}
// If meta key is pressed, the printable key layout may be switched from
// non-ASCII capable layout to ASCII capable, or from Dvorak to QWERTY.
// KeyboardEvent.key value should be the switched layout's character.
else if (aKeyEvent.IsMeta()) {
nsCocoaUtils::GetStringForNSString([aNativeKeyEvent characters],
aKeyEvent.mKeyValue);
}
// If control key is pressed, some keys may produce printable character via
// [aNativeKeyEvent characters]. Otherwise, translate input character of
// the key without control key.
else if (aKeyEvent.IsControl()) {
NSUInteger cocoaState =
[aNativeKeyEvent modifierFlags] & ~NSControlKeyMask;
UInt32 carbonState = nsCocoaUtils::ConvertToCarbonModifier(cocoaState);
if (IsDeadKey(nativeKeyCode, carbonState, kbType)) {
aKeyEvent.mKeyNameIndex = KEY_NAME_INDEX_Dead;
} else {
aKeyEvent.mKeyValue = TranslateToChar(nativeKeyCode, carbonState, kbType);
if (!aKeyEvent.mKeyValue.IsEmpty() &&
IsControlChar(aKeyEvent.mKeyValue[0])) {
// Don't expose control character to the web.
aKeyEvent.mKeyValue.Truncate();
}
}
}
// Otherwise, KeyboardEvent.key expose
// [aNativeKeyEvent characters] value. However, if IME is open and the
// keyboard layout isn't ASCII capable, exposing the non-ASCII character
// doesn't match with other platform's behavior. For the compatibility
// with other platform's Gecko, we need to set a translated character.
else if (IsOpenedIMEMode()) {
UInt32 state =
nsCocoaUtils::ConvertToCarbonModifier([aNativeKeyEvent modifierFlags]);
aKeyEvent.mKeyValue = TranslateToChar(nativeKeyCode, state, kbType);
} else {
nsCocoaUtils::GetStringForNSString([aNativeKeyEvent characters],
aKeyEvent.mKeyValue);
// If the key value is empty, the event may be a dead key event.
// If TranslateToChar() returns non-zero value, that means that
// the key may input a character with different dead key state.
if (aKeyEvent.mKeyValue.IsEmpty()) {
NSUInteger cocoaState = [aNativeKeyEvent modifierFlags];
UInt32 carbonState = nsCocoaUtils::ConvertToCarbonModifier(cocoaState);
if (TranslateToChar(nativeKeyCode, carbonState, kbType)) {
aKeyEvent.mKeyNameIndex = KEY_NAME_INDEX_Dead;
}
}
}
// Last resort. If .key value becomes empty string, we should use
// charactersIgnoringModifiers, if it's available.
if (aKeyEvent.mKeyNameIndex == KEY_NAME_INDEX_USE_STRING &&
(aKeyEvent.mKeyValue.IsEmpty() ||
IsControlChar(aKeyEvent.mKeyValue[0]))) {
nsCocoaUtils::GetStringForNSString(
[aNativeKeyEvent charactersIgnoringModifiers], aKeyEvent.mKeyValue);
// But don't expose it if it's a control character.
if (!aKeyEvent.mKeyValue.IsEmpty() &&
IsControlChar(aKeyEvent.mKeyValue[0])) {
aKeyEvent.mKeyValue.Truncate();
}
}
} else {
// Compute the key for non-printable keys and some special printable keys.
aKeyEvent.mKeyNameIndex = ComputeGeckoKeyNameIndex(nativeKeyCode);
}
aKeyEvent.mCodeNameIndex = ComputeGeckoCodeNameIndex(nativeKeyCode, kbType);
MOZ_ASSERT(aKeyEvent.mCodeNameIndex != CODE_NAME_INDEX_USE_STRING);
NS_OBJC_END_TRY_ABORT_BLOCK
}
void
TISInputSourceWrapper::WillDispatchKeyboardEvent(
NSEvent* aNativeKeyEvent,
const nsAString* aInsertString,
uint32_t aIndexOfKeypress,
WidgetKeyboardEvent& aKeyEvent)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// Nothing to do here if the native key event is neither NSKeyDown nor
// NSKeyUp because accessing [aNativeKeyEvent characters] causes throwing
// an exception.
if ([aNativeKeyEvent type] != NSKeyDown &&
[aNativeKeyEvent type] != NSKeyUp) {
return;
}
UInt32 kbType = GetKbdType();
if (MOZ_LOG_TEST(gLog, LogLevel::Info)) {
nsAutoString chars;
nsCocoaUtils::GetStringForNSString([aNativeKeyEvent characters], chars);
NS_ConvertUTF16toUTF8 utf8Chars(chars);
char16_t uniChar = static_cast<char16_t>(aKeyEvent.mCharCode);
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::WillDispatchKeyboardEvent, "
"aNativeKeyEvent=%p, aInsertString=%p (\"%s\"), "
"aIndexOfKeypress=%u, [aNativeKeyEvent characters]=\"%s\", "
"aKeyEvent={ mMessage=%s, mCharCode=0x%X(%s) }, kbType=0x%X, "
"IsOpenedIMEMode()=%s",
this, aNativeKeyEvent, aInsertString,
aInsertString ? GetCharacters(*aInsertString) : "",
aIndexOfKeypress, GetCharacters([aNativeKeyEvent characters]),
GetGeckoKeyEventType(aKeyEvent), aKeyEvent.mCharCode,
uniChar ? NS_ConvertUTF16toUTF8(&uniChar, 1).get() : "",
static_cast<unsigned int>(kbType), TrueOrFalse(IsOpenedIMEMode())));
}
nsAutoString insertStringForCharCode;
ComputeInsertStringForCharCode(aNativeKeyEvent, aKeyEvent, aInsertString,
insertStringForCharCode);
// The mCharCode was set from mKeyValue. However, for example, when Ctrl key
// is pressed, its value should indicate an ASCII character for backward
// compatibility rather than inputting character without the modifiers.
// Therefore, we need to modify mCharCode value here.
uint32_t charCode = 0;
if (aIndexOfKeypress < insertStringForCharCode.Length()) {
charCode = insertStringForCharCode[aIndexOfKeypress];
}
aKeyEvent.SetCharCode(charCode);
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::WillDispatchKeyboardEvent, "
"aKeyEvent.mKeyCode=0x%X, aKeyEvent.mCharCode=0x%X",
this, aKeyEvent.mKeyCode, aKeyEvent.mCharCode));
// If aInsertString is not nullptr (it means InsertText() is called)
// and it acutally inputs a character, we don't need to append alternative
// charCode values since such keyboard event shouldn't be handled as
// a shortcut key.
if (aInsertString && charCode) {
return;
}
TISInputSourceWrapper USLayout("com.apple.keylayout.US");
bool isRomanKeyboardLayout = IsASCIICapable();
UInt32 key = [aNativeKeyEvent keyCode];
// Caps lock and num lock modifier state:
UInt32 lockState = 0;
if ([aNativeKeyEvent modifierFlags] & NSAlphaShiftKeyMask) {
lockState |= alphaLock;
}
if ([aNativeKeyEvent modifierFlags] & NSNumericPadKeyMask) {
lockState |= kEventKeyModifierNumLockMask;
}
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::WillDispatchKeyboardEvent, "
"isRomanKeyboardLayout=%s, kbType=0x%X, key=0x%X",
this, TrueOrFalse(isRomanKeyboardLayout), static_cast<unsigned int>(kbType),
static_cast<unsigned int>(key)));
nsString str;
// normal chars
uint32_t unshiftedChar = TranslateToChar(key, lockState, kbType);
UInt32 shiftLockMod = shiftKey | lockState;
uint32_t shiftedChar = TranslateToChar(key, shiftLockMod, kbType);
// characters generated with Cmd key
// XXX we should remove CapsLock state, which changes characters from
// Latin to Cyrillic with Russian layout on 10.4 only when Cmd key
// is pressed.
UInt32 numState = (lockState & ~alphaLock); // only num lock state
uint32_t uncmdedChar = TranslateToChar(key, numState, kbType);
UInt32 shiftNumMod = numState | shiftKey;
uint32_t uncmdedShiftChar = TranslateToChar(key, shiftNumMod, kbType);
uint32_t uncmdedUSChar = USLayout.TranslateToChar(key, numState, kbType);
UInt32 cmdNumMod = cmdKey | numState;
uint32_t cmdedChar = TranslateToChar(key, cmdNumMod, kbType);
UInt32 cmdShiftNumMod = shiftKey | cmdNumMod;
uint32_t cmdedShiftChar = TranslateToChar(key, cmdShiftNumMod, kbType);
// Is the keyboard layout changed by Cmd key?
// E.g., Arabic, Russian, Hebrew, Greek and Dvorak-QWERTY.
bool isCmdSwitchLayout = uncmdedChar != cmdedChar;
// Is the keyboard layout for Latin, but Cmd key switches the layout?
// I.e., Dvorak-QWERTY
bool isDvorakQWERTY = isCmdSwitchLayout && isRomanKeyboardLayout;
// If the current keyboard is not Dvorak-QWERTY or Cmd is not pressed,
// we should append unshiftedChar and shiftedChar for handling the
// normal characters. These are the characters that the user is most
// likely to associate with this key.
if ((unshiftedChar || shiftedChar) &&
(!aKeyEvent.IsMeta() || !isDvorakQWERTY)) {
AlternativeCharCode altCharCodes(unshiftedChar, shiftedChar);
aKeyEvent.mAlternativeCharCodes.AppendElement(altCharCodes);
}
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::WillDispatchKeyboardEvent, "
"aKeyEvent.isMeta=%s, isDvorakQWERTY=%s, "
"unshiftedChar=U+%X, shiftedChar=U+%X",
this, OnOrOff(aKeyEvent.IsMeta()), TrueOrFalse(isDvorakQWERTY),
unshiftedChar, shiftedChar));
// Most keyboard layouts provide the same characters in the NSEvents
// with Command+Shift as with Command. However, with Command+Shift we
// want the character on the second level. e.g. With a US QWERTY
// layout, we want "?" when the "/","?" key is pressed with
// Command+Shift.
// On a German layout, the OS gives us '/' with Cmd+Shift+SS(eszett)
// even though Cmd+SS is 'SS' and Shift+'SS' is '?'. This '/' seems
// like a hack to make the Cmd+"?" event look the same as the Cmd+"?"
// event on a US keyboard. The user thinks they are typing Cmd+"?", so
// we'll prefer the "?" character, replacing mCharCode with shiftedChar
// when Shift is pressed. However, in case there is a layout where the
// character unique to Cmd+Shift is the character that the user expects,
// we'll send it as an alternative char.
bool hasCmdShiftOnlyChar =
cmdedChar != cmdedShiftChar && uncmdedShiftChar != cmdedShiftChar;
uint32_t originalCmdedShiftChar = cmdedShiftChar;
// If we can make a good guess at the characters that the user would
// expect this key combination to produce (with and without Shift) then
// use those characters. This also corrects for CapsLock, which was
// ignored above.
if (!isCmdSwitchLayout) {
// The characters produced with Command seem similar to those without
// Command.
if (unshiftedChar) {
cmdedChar = unshiftedChar;
}
if (shiftedChar) {
cmdedShiftChar = shiftedChar;
}
} else if (uncmdedUSChar == cmdedChar) {
// It looks like characters from a US layout are provided when Command
// is down.
uint32_t ch = USLayout.TranslateToChar(key, lockState, kbType);
if (ch) {
cmdedChar = ch;
}
ch = USLayout.TranslateToChar(key, shiftLockMod, kbType);
if (ch) {
cmdedShiftChar = ch;
}
}
// If the current keyboard layout is switched by the Cmd key,
// we should append cmdedChar and shiftedCmdChar that are
// Latin char for the key.
// If the keyboard layout is Dvorak-QWERTY, we should append them only when
// command key is pressed because when command key isn't pressed, uncmded
// chars have been appended already.
if ((cmdedChar || cmdedShiftChar) && isCmdSwitchLayout &&
(aKeyEvent.IsMeta() || !isDvorakQWERTY)) {
AlternativeCharCode altCharCodes(cmdedChar, cmdedShiftChar);
aKeyEvent.mAlternativeCharCodes.AppendElement(altCharCodes);
}
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::WillDispatchKeyboardEvent, "
"hasCmdShiftOnlyChar=%s, isCmdSwitchLayout=%s, isDvorakQWERTY=%s, "
"cmdedChar=U+%X, cmdedShiftChar=U+%X",
this, TrueOrFalse(hasCmdShiftOnlyChar), TrueOrFalse(isDvorakQWERTY),
TrueOrFalse(isDvorakQWERTY), cmdedChar, cmdedShiftChar));
// Special case for 'SS' key of German layout. See the comment of
// hasCmdShiftOnlyChar definition for the detail.
if (hasCmdShiftOnlyChar && originalCmdedShiftChar) {
AlternativeCharCode altCharCodes(0, originalCmdedShiftChar);
aKeyEvent.mAlternativeCharCodes.AppendElement(altCharCodes);
}
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::WillDispatchKeyboardEvent, "
"hasCmdShiftOnlyChar=%s, originalCmdedShiftChar=U+%X",
this, TrueOrFalse(hasCmdShiftOnlyChar), originalCmdedShiftChar));
NS_OBJC_END_TRY_ABORT_BLOCK
}
uint32_t
TISInputSourceWrapper::ComputeGeckoKeyCode(UInt32 aNativeKeyCode,
UInt32 aKbType,
bool aCmdIsPressed)
{
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::ComputeGeckoKeyCode, aNativeKeyCode=0x%X, "
"aKbType=0x%X, aCmdIsPressed=%s, IsOpenedIMEMode()=%s, "
"IsASCIICapable()=%s",
this, static_cast<unsigned int>(aNativeKeyCode),
static_cast<unsigned int>(aKbType), TrueOrFalse(aCmdIsPressed),
TrueOrFalse(IsOpenedIMEMode()), TrueOrFalse(IsASCIICapable())));
switch (aNativeKeyCode) {
case kVK_Space: return NS_VK_SPACE;
case kVK_Escape: return NS_VK_ESCAPE;
// modifiers
case kVK_RightCommand:
case kVK_Command: return NS_VK_META;
case kVK_RightShift:
case kVK_Shift: return NS_VK_SHIFT;
case kVK_CapsLock: return NS_VK_CAPS_LOCK;
case kVK_RightControl:
case kVK_Control: return NS_VK_CONTROL;
case kVK_RightOption:
case kVK_Option: return NS_VK_ALT;
case kVK_ANSI_KeypadClear: return NS_VK_CLEAR;
// function keys
case kVK_F1: return NS_VK_F1;
case kVK_F2: return NS_VK_F2;
case kVK_F3: return NS_VK_F3;
case kVK_F4: return NS_VK_F4;
case kVK_F5: return NS_VK_F5;
case kVK_F6: return NS_VK_F6;
case kVK_F7: return NS_VK_F7;
case kVK_F8: return NS_VK_F8;
case kVK_F9: return NS_VK_F9;
case kVK_F10: return NS_VK_F10;
case kVK_F11: return NS_VK_F11;
case kVK_F12: return NS_VK_F12;
// case kVK_F13: return NS_VK_F13; // clash with the 3 below
// case kVK_F14: return NS_VK_F14;
// case kVK_F15: return NS_VK_F15;
case kVK_F16: return NS_VK_F16;
case kVK_F17: return NS_VK_F17;
case kVK_F18: return NS_VK_F18;
case kVK_F19: return NS_VK_F19;
case kVK_PC_Pause: return NS_VK_PAUSE;
case kVK_PC_ScrollLock: return NS_VK_SCROLL_LOCK;
case kVK_PC_PrintScreen: return NS_VK_PRINTSCREEN;
// keypad
case kVK_ANSI_Keypad0: return NS_VK_NUMPAD0;
case kVK_ANSI_Keypad1: return NS_VK_NUMPAD1;
case kVK_ANSI_Keypad2: return NS_VK_NUMPAD2;
case kVK_ANSI_Keypad3: return NS_VK_NUMPAD3;
case kVK_ANSI_Keypad4: return NS_VK_NUMPAD4;
case kVK_ANSI_Keypad5: return NS_VK_NUMPAD5;
case kVK_ANSI_Keypad6: return NS_VK_NUMPAD6;
case kVK_ANSI_Keypad7: return NS_VK_NUMPAD7;
case kVK_ANSI_Keypad8: return NS_VK_NUMPAD8;
case kVK_ANSI_Keypad9: return NS_VK_NUMPAD9;
case kVK_ANSI_KeypadMultiply: return NS_VK_MULTIPLY;
case kVK_ANSI_KeypadPlus: return NS_VK_ADD;
case kVK_ANSI_KeypadMinus: return NS_VK_SUBTRACT;
case kVK_ANSI_KeypadDecimal: return NS_VK_DECIMAL;
case kVK_ANSI_KeypadDivide: return NS_VK_DIVIDE;
case kVK_JIS_KeypadComma: return NS_VK_SEPARATOR;
// IME keys
case kVK_JIS_Eisu: return NS_VK_EISU;
case kVK_JIS_Kana: return NS_VK_KANA;
// these may clash with forward delete and help
case kVK_PC_Insert: return NS_VK_INSERT;
case kVK_PC_Delete: return NS_VK_DELETE;
case kVK_PC_Backspace: return NS_VK_BACK;
case kVK_Tab: return NS_VK_TAB;
case kVK_Home: return NS_VK_HOME;
case kVK_End: return NS_VK_END;
case kVK_PageUp: return NS_VK_PAGE_UP;
case kVK_PageDown: return NS_VK_PAGE_DOWN;
case kVK_LeftArrow: return NS_VK_LEFT;
case kVK_RightArrow: return NS_VK_RIGHT;
case kVK_UpArrow: return NS_VK_UP;
case kVK_DownArrow: return NS_VK_DOWN;
case kVK_PC_ContextMenu: return NS_VK_CONTEXT_MENU;
case kVK_ANSI_1: return NS_VK_1;
case kVK_ANSI_2: return NS_VK_2;
case kVK_ANSI_3: return NS_VK_3;
case kVK_ANSI_4: return NS_VK_4;
case kVK_ANSI_5: return NS_VK_5;
case kVK_ANSI_6: return NS_VK_6;
case kVK_ANSI_7: return NS_VK_7;
case kVK_ANSI_8: return NS_VK_8;
case kVK_ANSI_9: return NS_VK_9;
case kVK_ANSI_0: return NS_VK_0;
case kVK_ANSI_KeypadEnter:
case kVK_Return:
case kVK_Powerbook_KeypadEnter: return NS_VK_RETURN;
}
// If Cmd key is pressed, that causes switching keyboard layout temporarily.
// E.g., Dvorak-QWERTY. Therefore, if Cmd key is pressed, we should honor it.
UInt32 modifiers = aCmdIsPressed ? cmdKey : 0;
uint32_t charCode = TranslateToChar(aNativeKeyCode, modifiers, aKbType);
// Special case for Mac. Mac inputs Yen sign (U+00A5) directly instead of
// Back slash (U+005C). We should return NS_VK_BACK_SLASH for compatibility
// with other platforms.
// XXX How about Won sign (U+20A9) which has same problem as Yen sign?
if (charCode == 0x00A5) {
return NS_VK_BACK_SLASH;
}
uint32_t keyCode = WidgetUtils::ComputeKeyCodeFromChar(charCode);
if (keyCode) {
return keyCode;
}
// If the unshifed char isn't an ASCII character, use shifted char.
charCode = TranslateToChar(aNativeKeyCode, modifiers | shiftKey, aKbType);
keyCode = WidgetUtils::ComputeKeyCodeFromChar(charCode);
if (keyCode) {
return keyCode;
}
if (!IsASCIICapable()) {
// Retry with ASCII capable keyboard layout.
TISInputSourceWrapper currentKeyboardLayout;
currentKeyboardLayout.InitByCurrentASCIICapableKeyboardLayout();
NS_ENSURE_TRUE(mInputSource != currentKeyboardLayout.mInputSource, 0);
keyCode = currentKeyboardLayout.ComputeGeckoKeyCode(aNativeKeyCode, aKbType,
aCmdIsPressed);
// We've returned 0 for long time if keyCode isn't for an alphabet keys or
// a numeric key even in alternative ASCII capable keyboard layout because
// we decided that we should avoid setting same keyCode value to 2 or
// more keys since active keyboard layout may have a key to input the
// punctuation with different key. However, setting keyCode to 0 makes
// some web applications which are aware of neither KeyboardEvent.key nor
// KeyboardEvent.code not work with Firefox when user selects non-ASCII
// capable keyboard layout such as Russian and Thai. So, if alternative
// ASCII capable keyboard layout has keyCode value for the key, we should
// use it. In other words, this behavior does that non-ASCII capable
// keyboard layout overrides some keys' keyCode value only if the key
// produces ASCII character by itself or with Shift key.
if (keyCode) {
return keyCode;
}
}
// Otherwise, let's decide keyCode value from the native virtual keycode
// value on major keyboard layout.
CodeNameIndex code = ComputeGeckoCodeNameIndex(aNativeKeyCode, aKbType);
return WidgetKeyboardEvent::GetFallbackKeyCodeOfPunctuationKey(code);
}
// static
KeyNameIndex
TISInputSourceWrapper::ComputeGeckoKeyNameIndex(UInt32 aNativeKeyCode)
{
// NOTE:
// When unsupported keys like Convert, Nonconvert of Japanese keyboard is
// pressed:
// on 10.6.x, 'A' key event is fired (and also actually 'a' is inserted).
// on 10.7.x, Nothing happens.
// on 10.8.x, Nothing happens.
// on 10.9.x, FlagsChanged event is fired with keyCode 0xFF.
switch (aNativeKeyCode) {
#define NS_NATIVE_KEY_TO_DOM_KEY_NAME_INDEX(aNativeKey, aKeyNameIndex) \
case aNativeKey: return aKeyNameIndex;
#include "NativeKeyToDOMKeyName.h"
#undef NS_NATIVE_KEY_TO_DOM_KEY_NAME_INDEX
default:
return KEY_NAME_INDEX_Unidentified;
}
}
// static
CodeNameIndex
TISInputSourceWrapper::ComputeGeckoCodeNameIndex(UInt32 aNativeKeyCode,
UInt32 aKbType)
{
// macOS swaps native key code between Backquote key and IntlBackslash key
// only when the keyboard type is ISO. Let's treat the key code after
// swapping them here because Chromium does so only when computing .code
// value.
if (::KBGetLayoutType(aKbType) == kKeyboardISO) {
if (aNativeKeyCode == kVK_ISO_Section) {
aNativeKeyCode = kVK_ANSI_Grave;
} else if (aNativeKeyCode == kVK_ANSI_Grave) {
aNativeKeyCode = kVK_ISO_Section;
}
}
switch (aNativeKeyCode) {
#define NS_NATIVE_KEY_TO_DOM_CODE_NAME_INDEX(aNativeKey, aCodeNameIndex) \
case aNativeKey: return aCodeNameIndex;
#include "NativeKeyToDOMCodeName.h"
#undef NS_NATIVE_KEY_TO_DOM_CODE_NAME_INDEX
default:
return CODE_NAME_INDEX_UNKNOWN;
}
}
#pragma mark -
/******************************************************************************
*
* TextInputHandler implementation (static methods)
*
******************************************************************************/
NSUInteger TextInputHandler::sLastModifierState = 0;
// static
CFArrayRef
TextInputHandler::CreateAllKeyboardLayoutList()
{
const void* keys[] = { kTISPropertyInputSourceType };
const void* values[] = { kTISTypeKeyboardLayout };
CFDictionaryRef filter =
::CFDictionaryCreate(kCFAllocatorDefault, keys, values, 1, NULL, NULL);
NS_ASSERTION(filter, "failed to create the filter");
CFArrayRef list = ::TISCreateInputSourceList(filter, true);
::CFRelease(filter);
return list;
}
// static
void
TextInputHandler::DebugPrintAllKeyboardLayouts()
{
if (MOZ_LOG_TEST(gLog, LogLevel::Info)) {
CFArrayRef list = CreateAllKeyboardLayoutList();
MOZ_LOG(gLog, LogLevel::Info, ("Keyboard layout configuration:"));
CFIndex idx = ::CFArrayGetCount(list);
TISInputSourceWrapper tis;
for (CFIndex i = 0; i < idx; ++i) {
TISInputSourceRef inputSource = static_cast<TISInputSourceRef>(
const_cast<void *>(::CFArrayGetValueAtIndex(list, i)));
tis.InitByTISInputSourceRef(inputSource);
nsAutoString name, isid;
tis.GetLocalizedName(name);
tis.GetInputSourceID(isid);
MOZ_LOG(gLog, LogLevel::Info,
(" %s\t<%s>%s%s\n",
NS_ConvertUTF16toUTF8(name).get(),
NS_ConvertUTF16toUTF8(isid).get(),
tis.IsASCIICapable() ? "" : "\t(Isn't ASCII capable)",
tis.IsKeyboardLayout() && tis.GetUCKeyboardLayout() ?
"" : "\t(uchr is NOT AVAILABLE)"));
}
::CFRelease(list);
}
}
#pragma mark -
/******************************************************************************
*
* TextInputHandler implementation
*
******************************************************************************/
TextInputHandler::TextInputHandler(nsChildView* aWidget,
NSView<mozView> *aNativeView) :
IMEInputHandler(aWidget, aNativeView)
{
EnsureToLogAllKeyboardLayoutsAndIMEs();
[mView installTextInputHandler:this];
}
TextInputHandler::~TextInputHandler()
{
[mView uninstallTextInputHandler];
}
bool
TextInputHandler::HandleKeyDownEvent(NSEvent* aNativeEvent,
uint32_t aUniqueId)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
if (Destroyed()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyDownEvent, "
"widget has been already destroyed", this));
return false;
}
// Insert empty line to the log for easier to read.
MOZ_LOG(gLog, LogLevel::Info, (""));
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyDownEvent, aNativeEvent=%p, "
"type=%s, keyCode=%u (0x%X), modifierFlags=0x%lX, characters=\"%s\", "
"charactersIgnoringModifiers=\"%s\"",
this, aNativeEvent, GetNativeKeyEventType(aNativeEvent),
[aNativeEvent keyCode], [aNativeEvent keyCode],
static_cast<unsigned long>([aNativeEvent modifierFlags]),
GetCharacters([aNativeEvent characters]),
GetCharacters([aNativeEvent charactersIgnoringModifiers])));
// Except when Command key is pressed, we should hide mouse cursor until
// next mousemove. Handling here means that:
// - Don't hide mouse cursor at pressing modifier key
// - Hide mouse cursor even if the key event will be handled by IME (i.e.,
// even without dispatching eKeyPress events)
// - Hide mouse cursor even when a plugin has focus
if (!([aNativeEvent modifierFlags] & NSCommandKeyMask)) {
[NSCursor setHiddenUntilMouseMoves:YES];
}
RefPtr<nsChildView> widget(mWidget);
KeyEventState* currentKeyEvent = PushKeyEvent(aNativeEvent, aUniqueId);
AutoKeyEventStateCleaner remover(this);
ComplexTextInputPanel* ctiPanel = ComplexTextInputPanel::GetSharedComplexTextInputPanel();
if (ctiPanel && ctiPanel->IsInComposition()) {
nsAutoString committed;
ctiPanel->InterpretKeyEvent(aNativeEvent, committed);
if (!committed.IsEmpty()) {
nsresult rv = mDispatcher->BeginNativeInputTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::HandleKeyDownEvent, "
"FAILED, due to BeginNativeInputTransaction() failure "
"at dispatching keydown for ComplexTextInputPanel", this));
return false;
}
WidgetKeyboardEvent imeEvent(true, eKeyDown, widget);
currentKeyEvent->InitKeyEvent(this, imeEvent, false);
imeEvent.mPluginTextEventString.Assign(committed);
nsEventStatus status = nsEventStatus_eIgnore;
mDispatcher->DispatchKeyboardEvent(eKeyDown, imeEvent, status,
currentKeyEvent);
}
return true;
}
RefPtr<TextInputHandler> kungFuDeathGrip(this);
// When we're already in a composition, we need always to mark the eKeyDown
// event as "processed by IME". So, let's dispatch eKeyDown event here in
// such case.
if (IsIMEComposing() && !MaybeDispatchCurrentKeydownEvent(true)) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::HandleKeyDownEvent, eKeyDown caused focus move or "
"something and canceling the composition", this));
return false;
}
// Let Cocoa interpret the key events, caching IsIMEComposing first.
bool wasComposing = IsIMEComposing();
bool interpretKeyEventsCalled = false;
// Don't call interpretKeyEvents when a plugin has focus. If we call it,
// for example, a character is inputted twice during a composition in e10s
// mode.
if (!widget->IsPluginFocused() && (IsIMEEnabled() || IsASCIICapableOnly())) {
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyDownEvent, calling interpretKeyEvents",
this));
[mView interpretKeyEvents:[NSArray arrayWithObject:aNativeEvent]];
interpretKeyEventsCalled = true;
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyDownEvent, called interpretKeyEvents",
this));
}
if (Destroyed()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyDownEvent, widget was destroyed",
this));
return currentKeyEvent->IsDefaultPrevented();
}
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyDownEvent, wasComposing=%s, "
"IsIMEComposing()=%s",
this, TrueOrFalse(wasComposing), TrueOrFalse(IsIMEComposing())));
if (currentKeyEvent->CanDispatchKeyDownEvent()) {
// Dispatch eKeyDown event if nobody has dispatched it yet.
// NOTE: Although reaching here means that the native keydown event may
// not be handled by IME. However, we cannot know if it is.
// For example, Japanese IME of Apple shows candidate window for
// typing window. They, you can switch the sort order with Tab key.
// However, when you choose "Symbol" of the sort order, there may
// be no candiate words. In this case, IME handles the Tab key
// actually, but we cannot know it because composition string is
// not updated. So, let's mark eKeyDown event as "processed by IME"
// when there is composition string. This is same as Chrome.
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyDownEvent, trying to dispatch eKeyDown "
"event since it's not yet dispatched",
this));
if (!MaybeDispatchCurrentKeydownEvent(IsIMEComposing())) {
return true; // treat the eKeydDown event as consumed.
}
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyDownEvent, eKeyDown event has been "
"dispatched",
this));
}
if (currentKeyEvent->CanDispatchKeyPressEvent() &&
!wasComposing && !IsIMEComposing()) {
nsresult rv = mDispatcher->BeginNativeInputTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::HandleKeyDownEvent, "
"FAILED, due to BeginNativeInputTransaction() failure "
"at dispatching keypress", this));
return false;
}
WidgetKeyboardEvent keypressEvent(true, eKeyPress, widget);
currentKeyEvent->InitKeyEvent(this, keypressEvent, false);
// If we called interpretKeyEvents and this isn't normal character input
// then IME probably ate the event for some reason. We do not want to
// send a key press event in that case.
// TODO:
// There are some other cases which IME eats the current event.
// 1. If key events were nested during calling interpretKeyEvents, it means
// that IME did something. Then, we should do nothing.
// 2. If one or more commands are called like "deleteBackward", we should
// dispatch keypress event at that time. Note that the command may have
// been a converted or generated action by IME. Then, we shouldn't do
// our default action for this key.
if (!(interpretKeyEventsCalled &&
IsNormalCharInputtingEvent(keypressEvent))) {
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyDownEvent, trying to dispatch "
"eKeyPress event since it's not yet dispatched",
this));
nsEventStatus status = nsEventStatus_eIgnore;
currentKeyEvent->mKeyPressDispatched =
mDispatcher->MaybeDispatchKeypressEvents(keypressEvent, status,
currentKeyEvent);
currentKeyEvent->mKeyPressHandled =
(status == nsEventStatus_eConsumeNoDefault);
currentKeyEvent->mKeyPressDispatched = true;
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyDownEvent, eKeyPress event has been "
"dispatched",
this));
}
}
// Note: mWidget might have become null here. Don't count on it from here on.
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyDownEvent, "
"keydown handled=%s, keypress handled=%s, causedOtherKeyEvents=%s, "
"compositionDispatched=%s",
this, TrueOrFalse(currentKeyEvent->mKeyDownHandled),
TrueOrFalse(currentKeyEvent->mKeyPressHandled),
TrueOrFalse(currentKeyEvent->mCausedOtherKeyEvents),
TrueOrFalse(currentKeyEvent->mCompositionDispatched)));
// Insert empty line to the log for easier to read.
MOZ_LOG(gLog, LogLevel::Info, (""));
return currentKeyEvent->IsDefaultPrevented();
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
void
TextInputHandler::HandleKeyUpEvent(NSEvent* aNativeEvent)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyUpEvent, aNativeEvent=%p, "
"type=%s, keyCode=%u (0x%X), modifierFlags=0x%lX, characters=\"%s\", "
"charactersIgnoringModifiers=\"%s\", "
"IsIMEComposing()=%s",
this, aNativeEvent, GetNativeKeyEventType(aNativeEvent),
[aNativeEvent keyCode], [aNativeEvent keyCode],
static_cast<unsigned long>([aNativeEvent modifierFlags]),
GetCharacters([aNativeEvent characters]),
GetCharacters([aNativeEvent charactersIgnoringModifiers]),
TrueOrFalse(IsIMEComposing())));
if (Destroyed()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleKeyUpEvent, "
"widget has been already destroyed", this));
return;
}
nsresult rv = mDispatcher->BeginNativeInputTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::HandleKeyUpEvent, "
"FAILED, due to BeginNativeInputTransaction() failure", this));
return;
}
// Neither Chrome for macOS nor Safari marks "keyup" event as "processed by
// IME" even during composition. So, let's follow this behavior.
WidgetKeyboardEvent keyupEvent(true, eKeyUp, mWidget);
InitKeyEvent(aNativeEvent, keyupEvent, false);
KeyEventState currentKeyEvent(aNativeEvent);
nsEventStatus status = nsEventStatus_eIgnore;
mDispatcher->DispatchKeyboardEvent(eKeyUp, keyupEvent, status,
&currentKeyEvent);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
TextInputHandler::HandleFlagsChanged(NSEvent* aNativeEvent)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (Destroyed()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleFlagsChanged, "
"widget has been already destroyed", this));
return;
}
RefPtr<nsChildView> kungFuDeathGrip(mWidget);
mozilla::Unused << kungFuDeathGrip; // Not referenced within this function
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleFlagsChanged, aNativeEvent=%p, "
"type=%s, keyCode=%s (0x%X), modifierFlags=0x%08lX, "
"sLastModifierState=0x%08lX, IsIMEComposing()=%s",
this, aNativeEvent, GetNativeKeyEventType(aNativeEvent),
GetKeyNameForNativeKeyCode([aNativeEvent keyCode]), [aNativeEvent keyCode],
static_cast<unsigned long>([aNativeEvent modifierFlags]),
static_cast<unsigned long>(sLastModifierState),
TrueOrFalse(IsIMEComposing())));
MOZ_ASSERT([aNativeEvent type] == NSFlagsChanged);
NSUInteger diff = [aNativeEvent modifierFlags] ^ sLastModifierState;
// Device dependent flags for left-control key, both shift keys, both command
// keys and both option keys have been defined in Next's SDK. But we
// shouldn't use it directly as far as possible since Cocoa SDK doesn't
// define them. Fortunately, we need them only when we dispatch keyup
// events. So, we can usually know the actual relation between keyCode and
// device dependent flags. However, we need to remove following flags first
// since the differences don't indicate modifier key state.
// NX_STYLUSPROXIMITYMASK: Probably used for pen like device.
// kCGEventFlagMaskNonCoalesced (= NX_NONCOALSESCEDMASK): See the document for
// Quartz Event Services.
diff &= ~(NX_STYLUSPROXIMITYMASK | kCGEventFlagMaskNonCoalesced);
switch ([aNativeEvent keyCode]) {
// CapsLock state and other modifier states are different:
// CapsLock state does not revert when the CapsLock key goes up, as the
// modifier state does for other modifier keys on key up.
case kVK_CapsLock: {
// Fire key down event for caps lock.
DispatchKeyEventForFlagsChanged(aNativeEvent, true);
// XXX should we fire keyup event too? The keyup event for CapsLock key
// is never dispatched on Gecko.
// XXX WebKit dispatches keydown event when CapsLock is locked, otherwise,
// keyup event. If we do so, we cannot keep the consistency with other
// platform's behavior...
break;
}
// If the event is caused by pressing or releasing a modifier key, just
// dispatch the key's event.
case kVK_Shift:
case kVK_RightShift:
case kVK_Command:
case kVK_RightCommand:
case kVK_Control:
case kVK_RightControl:
case kVK_Option:
case kVK_RightOption:
case kVK_Help: {
// We assume that at most one modifier is changed per event if the event
// is caused by pressing or releasing a modifier key.
bool isKeyDown = ([aNativeEvent modifierFlags] & diff) != 0;
DispatchKeyEventForFlagsChanged(aNativeEvent, isKeyDown);
// XXX Some applications might send the event with incorrect device-
// dependent flags.
if (isKeyDown && ((diff & ~NSDeviceIndependentModifierFlagsMask) != 0)) {
unsigned short keyCode = [aNativeEvent keyCode];
const ModifierKey* modifierKey =
GetModifierKeyForDeviceDependentFlags(diff);
if (modifierKey && modifierKey->keyCode != keyCode) {
// Although, we're not sure the actual cause of this case, the stored
// modifier information and the latest key event information may be
// mismatched. Then, let's reset the stored information.
// NOTE: If this happens, it may fail to handle NSFlagsChanged event
// in the default case (below). However, it's the rare case handler
// and this case occurs rarely. So, we can ignore the edge case bug.
NS_WARNING("Resetting stored modifier key information");
mModifierKeys.Clear();
modifierKey = nullptr;
}
if (!modifierKey) {
mModifierKeys.AppendElement(ModifierKey(diff, keyCode));
}
}
break;
}
// Currently we don't support Fn key since other browsers don't dispatch
// events for it and we don't have keyCode for this key.
// It should be supported when we implement .key and .char.
case kVK_Function:
break;
// If the event is caused by something else than pressing or releasing a
// single modifier key (for example by the app having been deactivated
// using command-tab), use the modifiers themselves to determine which
// key's event to dispatch, and whether it's a keyup or keydown event.
// In all cases we assume one or more modifiers are being deactivated
// (never activated) -- otherwise we'd have received one or more events
// corresponding to a single modifier key being pressed.
default: {
NSUInteger modifiers = sLastModifierState;
for (int32_t bit = 0; bit < 32; ++bit) {
NSUInteger flag = 1 << bit;
if (!(diff & flag)) {
continue;
}
// Given correct information from the application, a flag change here
// will normally be a deactivation (except for some lockable modifiers
// such as CapsLock). But some applications (like VNC) can send an
// activating event with a zero keyCode. So we need to check for that
// here.
bool dispatchKeyDown = ((flag & [aNativeEvent modifierFlags]) != 0);
unsigned short keyCode = 0;
if (flag & NSDeviceIndependentModifierFlagsMask) {
switch (flag) {
case NSAlphaShiftKeyMask:
keyCode = kVK_CapsLock;
dispatchKeyDown = true;
break;
case NSNumericPadKeyMask:
// NSNumericPadKeyMask is fired by VNC a lot. But not all of
// these events can really be Clear key events, so we just ignore
// them.
continue;
case NSHelpKeyMask:
keyCode = kVK_Help;
break;
case NSFunctionKeyMask:
// An NSFunctionKeyMask change here will normally be a
// deactivation. But sometimes it will be an activation send (by
// VNC for example) with a zero keyCode.
continue;
// These cases (NSShiftKeyMask, NSControlKeyMask, NSAlternateKeyMask
// and NSCommandKeyMask) should be handled by the other branch of
// the if statement, below (which handles device dependent flags).
// However, some applications (like VNC) can send key events without
// any device dependent flags, so we handle them here instead.
case NSShiftKeyMask:
keyCode = (modifiers & 0x0004) ? kVK_RightShift : kVK_Shift;
break;
case NSControlKeyMask:
keyCode = (modifiers & 0x2000) ? kVK_RightControl : kVK_Control;
break;
case NSAlternateKeyMask:
keyCode = (modifiers & 0x0040) ? kVK_RightOption : kVK_Option;
break;
case NSCommandKeyMask:
keyCode = (modifiers & 0x0010) ? kVK_RightCommand : kVK_Command;
break;
default:
continue;
}
} else {
const ModifierKey* modifierKey =
GetModifierKeyForDeviceDependentFlags(flag);
if (!modifierKey) {
// See the note above (in the other branch of the if statement)
// about the NSShiftKeyMask, NSControlKeyMask, NSAlternateKeyMask
// and NSCommandKeyMask cases.
continue;
}
keyCode = modifierKey->keyCode;
}
// Remove flags
modifiers &= ~flag;
switch (keyCode) {
case kVK_Shift: {
const ModifierKey* modifierKey =
GetModifierKeyForNativeKeyCode(kVK_RightShift);
if (!modifierKey ||
!(modifiers & modifierKey->GetDeviceDependentFlags())) {
modifiers &= ~NSShiftKeyMask;
}
break;
}
case kVK_RightShift: {
const ModifierKey* modifierKey =
GetModifierKeyForNativeKeyCode(kVK_Shift);
if (!modifierKey ||
!(modifiers & modifierKey->GetDeviceDependentFlags())) {
modifiers &= ~NSShiftKeyMask;
}
break;
}
case kVK_Command: {
const ModifierKey* modifierKey =
GetModifierKeyForNativeKeyCode(kVK_RightCommand);
if (!modifierKey ||
!(modifiers & modifierKey->GetDeviceDependentFlags())) {
modifiers &= ~NSCommandKeyMask;
}
break;
}
case kVK_RightCommand: {
const ModifierKey* modifierKey =
GetModifierKeyForNativeKeyCode(kVK_Command);
if (!modifierKey ||
!(modifiers & modifierKey->GetDeviceDependentFlags())) {
modifiers &= ~NSCommandKeyMask;
}
break;
}
case kVK_Control: {
const ModifierKey* modifierKey =
GetModifierKeyForNativeKeyCode(kVK_RightControl);
if (!modifierKey ||
!(modifiers & modifierKey->GetDeviceDependentFlags())) {
modifiers &= ~NSControlKeyMask;
}
break;
}
case kVK_RightControl: {
const ModifierKey* modifierKey =
GetModifierKeyForNativeKeyCode(kVK_Control);
if (!modifierKey ||
!(modifiers & modifierKey->GetDeviceDependentFlags())) {
modifiers &= ~NSControlKeyMask;
}
break;
}
case kVK_Option: {
const ModifierKey* modifierKey =
GetModifierKeyForNativeKeyCode(kVK_RightOption);
if (!modifierKey ||
!(modifiers & modifierKey->GetDeviceDependentFlags())) {
modifiers &= ~NSAlternateKeyMask;
}
break;
}
case kVK_RightOption: {
const ModifierKey* modifierKey =
GetModifierKeyForNativeKeyCode(kVK_Option);
if (!modifierKey ||
!(modifiers & modifierKey->GetDeviceDependentFlags())) {
modifiers &= ~NSAlternateKeyMask;
}
break;
}
case kVK_Help:
modifiers &= ~NSHelpKeyMask;
break;
default:
break;
}
NSEvent* event =
[NSEvent keyEventWithType:NSFlagsChanged
location:[aNativeEvent locationInWindow]
modifierFlags:modifiers
timestamp:[aNativeEvent timestamp]
windowNumber:[aNativeEvent windowNumber]
context:[aNativeEvent context]
characters:@""
charactersIgnoringModifiers:@""
isARepeat:NO
keyCode:keyCode];
DispatchKeyEventForFlagsChanged(event, dispatchKeyDown);
if (Destroyed()) {
break;
}
// Stop if focus has changed.
// Check to see if mView is still the first responder.
if (![mView isFirstResponder]) {
break;
}
}
break;
}
}
// Be aware, the widget may have been destroyed.
sLastModifierState = [aNativeEvent modifierFlags];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
const TextInputHandler::ModifierKey*
TextInputHandler::GetModifierKeyForNativeKeyCode(unsigned short aKeyCode) const
{
for (ModifierKeyArray::index_type i = 0; i < mModifierKeys.Length(); ++i) {
if (mModifierKeys[i].keyCode == aKeyCode) {
return &((ModifierKey&)mModifierKeys[i]);
}
}
return nullptr;
}
const TextInputHandler::ModifierKey*
TextInputHandler::GetModifierKeyForDeviceDependentFlags(NSUInteger aFlags) const
{
for (ModifierKeyArray::index_type i = 0; i < mModifierKeys.Length(); ++i) {
if (mModifierKeys[i].GetDeviceDependentFlags() ==
(aFlags & ~NSDeviceIndependentModifierFlagsMask)) {
return &((ModifierKey&)mModifierKeys[i]);
}
}
return nullptr;
}
void
TextInputHandler::DispatchKeyEventForFlagsChanged(NSEvent* aNativeEvent,
bool aDispatchKeyDown)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (Destroyed()) {
return;
}
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::DispatchKeyEventForFlagsChanged, aNativeEvent=%p, "
"type=%s, keyCode=%s (0x%X), aDispatchKeyDown=%s, IsIMEComposing()=%s",
this, aNativeEvent, GetNativeKeyEventType(aNativeEvent),
GetKeyNameForNativeKeyCode([aNativeEvent keyCode]), [aNativeEvent keyCode],
TrueOrFalse(aDispatchKeyDown), TrueOrFalse(IsIMEComposing())));
if ([aNativeEvent type] != NSFlagsChanged) {
return;
}
nsresult rv = mDispatcher->BeginNativeInputTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::DispatchKeyEventForFlagsChanged, "
"FAILED, due to BeginNativeInputTransaction() failure", this));
return;
}
EventMessage message = aDispatchKeyDown ? eKeyDown : eKeyUp;
// Fire a key event for the modifier key. Note that even if modifier key
// is pressed during composition, we shouldn't mark the keyboard event as
// "processed by IME" since neither Chrome for macOS nor Safari does it.
WidgetKeyboardEvent keyEvent(true, message, mWidget);
InitKeyEvent(aNativeEvent, keyEvent, false);
// Attach a plugin event, in case keyEvent gets dispatched to a plugin. Only
// one field is needed -- the type. The other fields can be constructed as
// the need arises. But Gecko doesn't have anything equivalent to the
// NPCocoaEventFlagsChanged type, and this needs to be passed accurately to
// any plugin to which this event is sent.
NPCocoaEvent cocoaEvent;
nsCocoaUtils::InitNPCocoaEvent(&cocoaEvent);
cocoaEvent.type = NPCocoaEventFlagsChanged;
keyEvent.mPluginEvent.Copy(cocoaEvent);
KeyEventState currentKeyEvent(aNativeEvent);
nsEventStatus status = nsEventStatus_eIgnore;
mDispatcher->DispatchKeyboardEvent(message, keyEvent, status,
&currentKeyEvent);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
TextInputHandler::InsertText(NSAttributedString* aAttrString,
NSRange* aReplacementRange)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (Destroyed()) {
return;
}
KeyEventState* currentKeyEvent = GetCurrentKeyEvent();
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::InsertText, aAttrString=\"%s\", "
"aReplacementRange=%p { location=%lu, length=%lu }, "
"IsIMEComposing()=%s, "
"keyevent=%p, keydownDispatched=%s, "
"keydownHandled=%s, keypressDispatched=%s, "
"causedOtherKeyEvents=%s, compositionDispatched=%s",
this, GetCharacters([aAttrString string]), aReplacementRange,
static_cast<unsigned long>(aReplacementRange ? aReplacementRange->location : 0),
static_cast<unsigned long>(aReplacementRange ? aReplacementRange->length : 0),
TrueOrFalse(IsIMEComposing()),
currentKeyEvent ? currentKeyEvent->mKeyEvent : nullptr,
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyDownDispatched) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyDownHandled) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyPressDispatched) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mCausedOtherKeyEvents) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mCompositionDispatched) : "N/A"));
InputContext context = mWidget->GetInputContext();
bool isEditable = (context.mIMEState.mEnabled == IMEState::ENABLED ||
context.mIMEState.mEnabled == IMEState::PASSWORD);
NSRange selectedRange = SelectedRange();
nsAutoString str;
nsCocoaUtils::GetStringForNSString([aAttrString string], str);
AutoInsertStringClearer clearer(currentKeyEvent);
if (currentKeyEvent) {
currentKeyEvent->mInsertString = &str;
}
if (!IsIMEComposing() && str.IsEmpty()) {
// nothing to do if there is no content which can be removed.
if (!isEditable) {
return;
}
// If replacement range is specified, we need to remove the range.
// Otherwise, we need to remove the selected range if it's not collapsed.
if (aReplacementRange && aReplacementRange->location != NSNotFound) {
// nothing to do since the range is collapsed.
if (aReplacementRange->length == 0) {
return;
}
// If the replacement range is different from current selected range,
// select the range.
if (!NSEqualRanges(selectedRange, *aReplacementRange)) {
NS_ENSURE_TRUE_VOID(SetSelection(*aReplacementRange));
}
selectedRange = SelectedRange();
}
NS_ENSURE_TRUE_VOID(selectedRange.location != NSNotFound);
if (selectedRange.length == 0) {
return; // nothing to do
}
// If this is caused by a key input, the keypress event which will be
// dispatched later should cause the delete. Therefore, nothing to do here.
// Although, we're not sure if such case is actually possible.
if (!currentKeyEvent) {
return;
}
// When current keydown event causes this empty text input, let's
// dispatch eKeyDown event before any other events. Note that if we're
// in a composition, we've already dispatched eKeyDown event from
// TextInputHandler::HandleKeyDownEvent().
// XXX Should we mark this eKeyDown event as "processed by IME"?
RefPtr<TextInputHandler> kungFuDeathGrip(this);
if (!IsIMEComposing() && !MaybeDispatchCurrentKeydownEvent(false)) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::InsertText, eKeyDown caused focus move or "
"something and canceling the composition", this));
return;
}
// Delete the selected range.
WidgetContentCommandEvent deleteCommandEvent(true, eContentCommandDelete,
mWidget);
DispatchEvent(deleteCommandEvent);
NS_ENSURE_TRUE_VOID(deleteCommandEvent.mSucceeded);
// Be aware! The widget might be destroyed here.
return;
}
bool isReplacingSpecifiedRange =
isEditable && aReplacementRange &&
aReplacementRange->location != NSNotFound &&
!NSEqualRanges(selectedRange, *aReplacementRange);
// If this is not caused by pressing a key, there is a composition or
// replacing a range which is different from current selection, let's
// insert the text as committing a composition.
// If InsertText() is called two or more times, we should insert all
// text with composition events.
// XXX When InsertText() is called multiple times, Chromium dispatches
// only one composition event. So, we need to store InsertText()
// calls and flush later.
if (!currentKeyEvent || currentKeyEvent->mCompositionDispatched ||
IsIMEComposing() || isReplacingSpecifiedRange) {
InsertTextAsCommittingComposition(aAttrString, aReplacementRange);
if (currentKeyEvent) {
currentKeyEvent->mCompositionDispatched = true;
}
return;
}
// Don't let the same event be fired twice when hitting
// enter/return for Bug 420502. However, Korean IME (or some other
// simple IME) may work without marked text. For example, composing
// character may be inserted as committed text and it's modified with
// aReplacementRange. When a keydown starts new composition with
// committing previous character, InsertText() may be called twice,
// one is for committing previous character and then, inserting new
// composing character as committed character. In the latter case,
// |CanDispatchKeyPressEvent()| returns true but we need to dispatch
// keypress event for the new character. So, when IME tries to insert
// printable characters, we should ignore current key event state even
// after the keydown has already caused dispatching composition event.
// XXX Anyway, we should sort out around this at fixing bug 1338460.
if (currentKeyEvent && !currentKeyEvent->CanDispatchKeyPressEvent() &&
(str.IsEmpty() || (str.Length() == 1 && !IsPrintableChar(str[0])))) {
return;
}
// This is the normal path to input a character when you press a key.
// Let's dispatch eKeyDown event now.
RefPtr<TextInputHandler> kungFuDeathGrip(this);
if (!MaybeDispatchCurrentKeydownEvent(false)) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::InsertText, eKeyDown caused focus move or "
"something and canceling the composition", this));
return;
}
// XXX Shouldn't we hold mDispatcher instead of mWidget?
RefPtr<nsChildView> widget(mWidget);
nsresult rv = mDispatcher->BeginNativeInputTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::InsertText, "
"FAILED, due to BeginNativeInputTransaction() failure", this));
return;
}
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::InsertText, "
"maybe dispatches eKeyPress event without control, alt and meta modifiers",
this));
// Dispatch keypress event with char instead of compositionchange event
WidgetKeyboardEvent keypressEvent(true, eKeyPress, widget);
// XXX Why do we need to dispatch keypress event for not inputting any
// string? If it wants to delete the specified range, should we
// dispatch an eContentCommandDelete event instead? Because this
// must not be caused by a key operation, a part of IME's processing.
// Don't set other modifiers from the current event, because here in
// -insertText: they've already been taken into account in creating
// the input string.
if (currentKeyEvent) {
currentKeyEvent->InitKeyEvent(this, keypressEvent, false);
} else {
nsCocoaUtils::InitInputEvent(keypressEvent, static_cast<NSEvent*>(nullptr));
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_USE_STRING;
keypressEvent.mKeyValue = str;
// FYI: TextEventDispatcher will set mKeyCode to 0 for printable key's
// keypress events even if they don't cause inputting non-empty string.
}
// TODO:
// If mCurrentKeyEvent.mKeyEvent is null, the text should be inputted as
// composition events.
nsEventStatus status = nsEventStatus_eIgnore;
bool keyPressDispatched =
mDispatcher->MaybeDispatchKeypressEvents(keypressEvent, status,
currentKeyEvent);
bool keyPressHandled = (status == nsEventStatus_eConsumeNoDefault);
// Note: mWidget might have become null here. Don't count on it from here on.
if (currentKeyEvent) {
currentKeyEvent->mKeyPressHandled = keyPressHandled;
currentKeyEvent->mKeyPressDispatched = keyPressDispatched;
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
bool
TextInputHandler::HandleCommand(Command aCommand)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
if (Destroyed()) {
return false;
}
KeyEventState* currentKeyEvent = GetCurrentKeyEvent();
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::HandleCommand, "
"aCommand=%s, IsIMEComposing()=%s, "
"keyevent=%p, keydownHandled=%s, keypressDispatched=%s, "
"causedOtherKeyEvents=%s, compositionDispatched=%s",
this, ToChar(aCommand), TrueOrFalse(IsIMEComposing()),
currentKeyEvent ? currentKeyEvent->mKeyEvent : nullptr,
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyDownHandled) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyPressDispatched) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mCausedOtherKeyEvents) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mCompositionDispatched) : "N/A"));
// The command shouldn't be handled, let's ignore it.
if (currentKeyEvent && !currentKeyEvent->CanHandleCommand()) {
return false;
}
// When current keydown event causes this command, let's dispatch
// eKeyDown event before any other events. Note that if we're in a
// composition, we've already dispatched eKeyDown event from
// TextInputHandler::HandleKeyDownEvent().
RefPtr<TextInputHandler> kungFuDeathGrip(this);
if (!IsIMEComposing() && !MaybeDispatchCurrentKeydownEvent(false)) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SetMarkedText, eKeyDown caused focus move or "
"something and canceling the composition", this));
return false;
}
// If it's in composition, we cannot dispatch keypress event.
// Therefore, we should use different approach or give up to handle
// the command.
if (IsIMEComposing()) {
switch (aCommand) {
case CommandInsertLineBreak:
case CommandInsertParagraph: {
// Insert '\n' as committing composition.
// Otherwise, we need to dispatch keypress event because HTMLEditor
// doesn't treat "\n" in composition string as a line break unless
// the whitespace is treated as pre (see bug 1350541). In strictly
// speaking, we should dispatch keypress event as-is if it's handling
// NSKeyDown event or should insert it with committing composition.
NSAttributedString* lineBreaker =
[[NSAttributedString alloc] initWithString:@"\n"];
InsertTextAsCommittingComposition(lineBreaker, nullptr);
if (currentKeyEvent) {
currentKeyEvent->mCompositionDispatched = true;
}
[lineBreaker release];
return true;
}
case CommandDeleteCharBackward:
case CommandDeleteCharForward:
case CommandDeleteToBeginningOfLine:
case CommandDeleteWordBackward:
case CommandDeleteWordForward:
// Don't remove any contents during composition.
return false;
case CommandInsertTab:
case CommandInsertBacktab:
// Don't move focus during composition.
return false;
case CommandCharNext:
case CommandSelectCharNext:
case CommandWordNext:
case CommandSelectWordNext:
case CommandEndLine:
case CommandSelectEndLine:
case CommandCharPrevious:
case CommandSelectCharPrevious:
case CommandWordPrevious:
case CommandSelectWordPrevious:
case CommandBeginLine:
case CommandSelectBeginLine:
case CommandLinePrevious:
case CommandSelectLinePrevious:
case CommandMoveTop:
case CommandLineNext:
case CommandSelectLineNext:
case CommandMoveBottom:
case CommandSelectBottom:
case CommandSelectPageUp:
case CommandSelectPageDown:
case CommandScrollBottom:
case CommandScrollTop:
// Don't move selection during composition.
return false;
case CommandCancelOperation:
case CommandComplete:
// Don't handle Escape key by ourselves during composition.
return false;
case CommandScrollPageUp:
case CommandScrollPageDown:
// Allow to scroll.
break;
default:
break;
}
}
RefPtr<nsChildView> widget(mWidget);
nsresult rv = mDispatcher->BeginNativeInputTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p, IMEInputHandler::HandleCommand, "
"FAILED, due to BeginNativeInputTransaction() failure", this));
return false;
}
// TODO: If it's not appropriate keypress but user customized the OS
// settings to do the command with other key, we should just set
// command to the keypress event and it should be handled as
// the key press in editor.
// If it's handling actual key event and hasn't cause any composition
// events nor other key events, we should expose actual modifier state.
// Otherwise, we should adjust Control, Option and Command state since
// editor may behave differently if some of them are active.
bool dispatchFakeKeyPress =
!(currentKeyEvent && currentKeyEvent->IsProperKeyEvent(aCommand));
WidgetKeyboardEvent keypressEvent(true, eKeyPress, widget);
if (!dispatchFakeKeyPress) {
// If we're acutally handling a key press, we should dispatch
// the keypress event as-is.
currentKeyEvent->InitKeyEvent(this, keypressEvent, false);
} else {
// Otherwise, we should dispatch "fake" keypress event.
// However, for making it possible to compute edit commands, we need to
// set current native key event to the fake keyboard event even if it's
// not same as what we expect since the native keyboard event caused
// this command.
NSEvent* keyEvent =
currentKeyEvent ? currentKeyEvent->mKeyEvent : nullptr;
keypressEvent.mNativeKeyEvent = keyEvent;
NS_WARNING_ASSERTION(keypressEvent.mNativeKeyEvent,
"Without native key event, NativeKeyBindings cannot compute aCommand");
switch (aCommand) {
case CommandInsertLineBreak:
case CommandInsertParagraph: {
// Although, Shift+Enter and Enter are work differently in HTML
// editor, we should expose actual Shift state if it's caused by
// Enter key for compatibility with Chromium. Chromium breaks
// line in HTML editor with default pargraph separator when Enter
// is pressed, with <br> element when Shift+Enter. Safari breaks
// line in HTML editor with default paragraph separator when
// Enter, Shift+Enter or Option+Enter. So, we should not change
// Shift+Enter meaning when there was composition string or not.
nsCocoaUtils::InitInputEvent(keypressEvent, keyEvent);
keypressEvent.mKeyCode = NS_VK_RETURN;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_Enter;
keypressEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
if (aCommand == CommandInsertLineBreak) {
// In default settings, Ctrl + Enter causes insertLineBreak command.
// So, let's make Ctrl state active of the keypress event.
keypressEvent.mModifiers |= MODIFIER_CONTROL;
}
break;
}
case CommandDeleteCharBackward:
case CommandDeleteToBeginningOfLine:
case CommandDeleteWordBackward: {
nsCocoaUtils::InitInputEvent(keypressEvent, keyEvent);
keypressEvent.mKeyCode = NS_VK_BACK;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_Backspace;
keypressEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
if (aCommand == CommandDeleteToBeginningOfLine) {
keypressEvent.mModifiers |= MODIFIER_META;
} else if (aCommand == CommandDeleteWordBackward) {
keypressEvent.mModifiers |= MODIFIER_ALT;
}
break;
}
case CommandDeleteCharForward:
case CommandDeleteWordForward: {
nsCocoaUtils::InitInputEvent(keypressEvent, keyEvent);
keypressEvent.mKeyCode = NS_VK_DELETE;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_Delete;
keypressEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
if (aCommand == CommandDeleteWordForward) {
keypressEvent.mModifiers |= MODIFIER_ALT;
}
break;
}
case CommandCharNext:
case CommandSelectCharNext:
case CommandWordNext:
case CommandSelectWordNext:
case CommandEndLine:
case CommandSelectEndLine: {
nsCocoaUtils::InitInputEvent(keypressEvent, keyEvent);
keypressEvent.mKeyCode = NS_VK_RIGHT;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_ArrowRight;
keypressEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
if (aCommand == CommandSelectCharNext ||
aCommand == CommandSelectWordNext ||
aCommand == CommandSelectEndLine) {
keypressEvent.mModifiers |= MODIFIER_SHIFT;
}
if (aCommand == CommandWordNext ||
aCommand == CommandSelectWordNext) {
keypressEvent.mModifiers |= MODIFIER_ALT;
}
if (aCommand == CommandEndLine ||
aCommand == CommandSelectEndLine) {
keypressEvent.mModifiers |= MODIFIER_META;
}
break;
}
case CommandCharPrevious:
case CommandSelectCharPrevious:
case CommandWordPrevious:
case CommandSelectWordPrevious:
case CommandBeginLine:
case CommandSelectBeginLine: {
nsCocoaUtils::InitInputEvent(keypressEvent, keyEvent);
keypressEvent.mKeyCode = NS_VK_LEFT;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_ArrowLeft;
keypressEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
if (aCommand == CommandSelectCharPrevious ||
aCommand == CommandSelectWordPrevious ||
aCommand == CommandSelectBeginLine) {
keypressEvent.mModifiers |= MODIFIER_SHIFT;
}
if (aCommand == CommandWordPrevious ||
aCommand == CommandSelectWordPrevious) {
keypressEvent.mModifiers |= MODIFIER_ALT;
}
if (aCommand == CommandBeginLine ||
aCommand == CommandSelectBeginLine) {
keypressEvent.mModifiers |= MODIFIER_META;
}
break;
}
case CommandLinePrevious:
case CommandSelectLinePrevious:
case CommandMoveTop:
case CommandSelectTop: {
nsCocoaUtils::InitInputEvent(keypressEvent, keyEvent);
keypressEvent.mKeyCode = NS_VK_UP;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_ArrowUp;
keypressEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
if (aCommand == CommandSelectLinePrevious ||
aCommand == CommandSelectTop) {
keypressEvent.mModifiers |= MODIFIER_SHIFT;
}
if (aCommand == CommandMoveTop ||
aCommand == CommandSelectTop) {
keypressEvent.mModifiers |= MODIFIER_META;
}
break;
}
case CommandLineNext:
case CommandSelectLineNext:
case CommandMoveBottom:
case CommandSelectBottom: {
nsCocoaUtils::InitInputEvent(keypressEvent, keyEvent);
keypressEvent.mKeyCode = NS_VK_DOWN;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_ArrowDown;
keypressEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
if (aCommand == CommandSelectLineNext ||
aCommand == CommandSelectBottom) {
keypressEvent.mModifiers |= MODIFIER_SHIFT;
}
if (aCommand == CommandMoveBottom ||
aCommand == CommandSelectBottom) {
keypressEvent.mModifiers |= MODIFIER_META;
}
break;
}
case CommandScrollPageUp:
case CommandSelectPageUp: {
nsCocoaUtils::InitInputEvent(keypressEvent, keyEvent);
keypressEvent.mKeyCode = NS_VK_PAGE_UP;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_PageUp;
keypressEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
if (aCommand == CommandSelectPageUp) {
keypressEvent.mModifiers |= MODIFIER_SHIFT;
}
break;
}
case CommandScrollPageDown:
case CommandSelectPageDown: {
nsCocoaUtils::InitInputEvent(keypressEvent, keyEvent);
keypressEvent.mKeyCode = NS_VK_PAGE_DOWN;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_PageDown;
keypressEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
if (aCommand == CommandSelectPageDown) {
keypressEvent.mModifiers |= MODIFIER_SHIFT;
}
break;
}
case CommandScrollBottom:
case CommandScrollTop: {
nsCocoaUtils::InitInputEvent(keypressEvent, keyEvent);
if (aCommand == CommandScrollBottom) {
keypressEvent.mKeyCode = NS_VK_END;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_End;
} else {
keypressEvent.mKeyCode = NS_VK_HOME;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_Home;
}
keypressEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
break;
}
case CommandCancelOperation:
case CommandComplete: {
nsCocoaUtils::InitInputEvent(keypressEvent, keyEvent);
keypressEvent.mKeyCode = NS_VK_ESCAPE;
keypressEvent.mKeyNameIndex = KEY_NAME_INDEX_Escape;
keypressEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
if (aCommand == CommandComplete) {
keypressEvent.mModifiers |= MODIFIER_ALT;
}
break;
}
default:
return false;
}
}
nsEventStatus status = nsEventStatus_eIgnore;
bool keyPressDispatched =
mDispatcher->MaybeDispatchKeypressEvents(keypressEvent, status,
currentKeyEvent);
bool keyPressHandled = (status == nsEventStatus_eConsumeNoDefault);
// NOTE: mWidget might have become null here.
if (keyPressDispatched) {
// Record the keypress event state only when it dispatched actual Enter
// keypress event because in other cases, the keypress event just a
// messenger. E.g., if it's caused by different key, keypress event for
// the actual key should be dispatched.
if (!dispatchFakeKeyPress && currentKeyEvent) {
currentKeyEvent->mKeyPressHandled = keyPressHandled;
currentKeyEvent->mKeyPressDispatched = keyPressDispatched;
}
return true;
}
// If keypress event isn't dispatched as expected, we should fallback to
// using composition events.
if (aCommand == CommandInsertLineBreak ||
aCommand == CommandInsertParagraph) {
NSAttributedString* lineBreaker =
[[NSAttributedString alloc] initWithString:@"\n"];
InsertTextAsCommittingComposition(lineBreaker, nullptr);
if (currentKeyEvent) {
currentKeyEvent->mCompositionDispatched = true;
}
[lineBreaker release];
return true;
}
return false;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
bool
TextInputHandler::DoCommandBySelector(const char* aSelector)
{
RefPtr<nsChildView> widget(mWidget);
KeyEventState* currentKeyEvent = GetCurrentKeyEvent();
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::DoCommandBySelector, aSelector=\"%s\", "
"Destroyed()=%s, keydownDispatched=%s, keydownHandled=%s, "
"keypressDispatched=%s, keypressHandled=%s, causedOtherKeyEvents=%s",
this, aSelector ? aSelector : "", TrueOrFalse(Destroyed()),
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyDownDispatched) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyDownHandled) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyPressDispatched) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyPressHandled) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mCausedOtherKeyEvents) : "N/A"));
// If the command isn't caused by key operation, the command should
// be handled in the super class of the caller.
if (!currentKeyEvent) {
return Destroyed();
}
// When current keydown event causes this command, let's dispatch
// eKeyDown event before any other events. Note that if we're in a
// composition, we've already dispatched eKeyDown event from
// TextInputHandler::HandleKeyDownEvent().
RefPtr<TextInputHandler> kungFuDeathGrip(this);
if (!IsIMEComposing() && !MaybeDispatchCurrentKeydownEvent(false)) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SetMarkedText, eKeyDown caused focus move or "
"something and canceling the composition", this));
return true;
}
// If the key operation causes this command, should dispatch a keypress
// event.
// XXX This must be worng. Even if this command is caused by the key
// operation, its our default action can be different from the
// command. So, in this case, we should dispatch a keypress event
// which have the command and editor should handle it.
if (currentKeyEvent->CanDispatchKeyPressEvent()) {
nsresult rv = mDispatcher->BeginNativeInputTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::DoCommandBySelector, "
"FAILED, due to BeginNativeInputTransaction() failure "
"at dispatching keypress", this));
return Destroyed();
}
WidgetKeyboardEvent keypressEvent(true, eKeyPress, widget);
currentKeyEvent->InitKeyEvent(this, keypressEvent, false);
nsEventStatus status = nsEventStatus_eIgnore;
currentKeyEvent->mKeyPressDispatched =
mDispatcher->MaybeDispatchKeypressEvents(keypressEvent, status,
currentKeyEvent);
currentKeyEvent->mKeyPressHandled =
(status == nsEventStatus_eConsumeNoDefault);
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandler::DoCommandBySelector, keypress event "
"dispatched, Destroyed()=%s, keypressHandled=%s",
this, TrueOrFalse(Destroyed()),
TrueOrFalse(currentKeyEvent->mKeyPressHandled)));
// This command is now dispatched with keypress event.
// So, this shouldn't be handled by nobody anymore.
return true;
}
// If the key operation didn't cause keypress event or caused keypress event
// but not prevented its default, we need to honor the command. For example,
// Korean IME sends "insertNewline:" when committing existing composition
// with Enter key press. In such case, the key operation has been consumed
// by the committing composition but we still need to handle the command.
if (Destroyed() || !currentKeyEvent->CanHandleCommand()) {
return true;
}
// cancelOperation: command is fired after Escape or Command + Period.
// However, if ChildView implements cancelOperation:, calling
// [[ChildView super] doCommandBySelector:aSelector] when Command + Period
// causes only a call of [ChildView cancelOperation:sender]. I.e.,
// [ChildView keyDown:theEvent] becomes to be never called. For avoiding
// this odd behavior, we need to handle the command before super class of
// ChildView only when current key event is proper event to fire Escape
// keypress event.
if (!strcmp(aSelector, "cancelOperatiorn:") && currentKeyEvent &&
currentKeyEvent->IsProperKeyEvent(CommandCancelOperation)) {
return HandleCommand(CommandCancelOperation);
}
// Otherwise, we've not handled the command yet. Propagate the command
// to the super class of ChildView.
return false;
}
#pragma mark -
/******************************************************************************
*
* IMEInputHandler implementation (static methods)
*
******************************************************************************/
bool IMEInputHandler::sStaticMembersInitialized = false;
bool IMEInputHandler::sCachedIsForRTLLangage = false;
CFStringRef IMEInputHandler::sLatestIMEOpenedModeInputSourceID = nullptr;
IMEInputHandler* IMEInputHandler::sFocusedIMEHandler = nullptr;
// static
void
IMEInputHandler::InitStaticMembers()
{
if (sStaticMembersInitialized)
return;
sStaticMembersInitialized = true;
// We need to check the keyboard layout changes on all applications.
CFNotificationCenterRef center = ::CFNotificationCenterGetDistributedCenter();
// XXX Don't we need to remove the observer at shut down?
// Mac Dev Center's document doesn't say how to remove the observer if
// the second parameter is NULL.
::CFNotificationCenterAddObserver(center, NULL,
OnCurrentTextInputSourceChange,
kTISNotifySelectedKeyboardInputSourceChanged, NULL,
CFNotificationSuspensionBehaviorDeliverImmediately);
// Initiailize with the current keyboard layout
OnCurrentTextInputSourceChange(NULL, NULL,
kTISNotifySelectedKeyboardInputSourceChanged,
NULL, NULL);
}
// static
void
IMEInputHandler::OnCurrentTextInputSourceChange(CFNotificationCenterRef aCenter,
void* aObserver,
CFStringRef aName,
const void* aObject,
CFDictionaryRef aUserInfo)
{
// Cache the latest IME opened mode to sLatestIMEOpenedModeInputSourceID.
TISInputSourceWrapper tis;
tis.InitByCurrentInputSource();
if (tis.IsOpenedIMEMode()) {
tis.GetInputSourceID(sLatestIMEOpenedModeInputSourceID);
// Collect Input Source ID which includes input mode in most cases.
// However, if it's Japanese IME, collecting input mode (e.g.,
// "HiraganaKotei") does not make sense because in most languages,
// input mode changes "how to input", but Japanese IME changes
// "which type of characters to input". I.e., only Japanese IME
// users may use multiple input modes. If we'd collect each type of
// input mode of Japanese IMEs, it'd be difficult to count actual
// users of each IME from the result. So, only when active IME is
// a Japanese IME, we should use Bundle ID which does not contain
// input mode instead.
nsAutoString key;
if (tis.IsForJapaneseLanguage()) {
tis.GetBundleID(key);
} else {
tis.GetInputSourceID(key);
}
// 72 is kMaximumKeyStringLength in TelemetryScalar.cpp
if (key.Length() > 72) {
if (NS_IS_LOW_SURROGATE(key[72 - 1]) &&
NS_IS_HIGH_SURROGATE(key[72 - 2])) {
key.Truncate(72 - 2);
} else {
key.Truncate(72 - 1);
}
// U+2026 is "..."
key.Append(char16_t(0x2026));
}
Telemetry::ScalarSet(Telemetry::ScalarID::WIDGET_IME_NAME_ON_MAC,
key, true);
}
if (MOZ_LOG_TEST(gLog, LogLevel::Info)) {
static CFStringRef sLastTIS = nullptr;
CFStringRef newTIS;
tis.GetInputSourceID(newTIS);
if (!sLastTIS ||
::CFStringCompare(sLastTIS, newTIS, 0) != kCFCompareEqualTo) {
TISInputSourceWrapper tis1, tis2, tis3, tis4, tis5;
tis1.InitByCurrentKeyboardLayout();
tis2.InitByCurrentASCIICapableInputSource();
tis3.InitByCurrentASCIICapableKeyboardLayout();
tis4.InitByCurrentInputMethodKeyboardLayoutOverride();
tis5.InitByTISInputSourceRef(tis.GetKeyboardLayoutInputSource());
CFStringRef is0 = nullptr, is1 = nullptr, is2 = nullptr, is3 = nullptr,
is4 = nullptr, is5 = nullptr, type0 = nullptr,
lang0 = nullptr, bundleID0 = nullptr;
tis.GetInputSourceID(is0);
tis1.GetInputSourceID(is1);
tis2.GetInputSourceID(is2);
tis3.GetInputSourceID(is3);
tis4.GetInputSourceID(is4);
tis5.GetInputSourceID(is5);
tis.GetInputSourceType(type0);
tis.GetPrimaryLanguage(lang0);
tis.GetBundleID(bundleID0);
MOZ_LOG(gLog, LogLevel::Info,
("IMEInputHandler::OnCurrentTextInputSourceChange,\n"
" Current Input Source is changed to:\n"
" currentInputContext=%p\n"
" %s\n"
" type=%s %s\n"
" overridden keyboard layout=%s\n"
" used keyboard layout for translation=%s\n"
" primary language=%s\n"
" bundle ID=%s\n"
" current ASCII capable Input Source=%s\n"
" current Keyboard Layout=%s\n"
" current ASCII capable Keyboard Layout=%s",
[NSTextInputContext currentInputContext], GetCharacters(is0),
GetCharacters(type0), tis.IsASCIICapable() ? "- ASCII capable " : "",
GetCharacters(is4), GetCharacters(is5),
GetCharacters(lang0), GetCharacters(bundleID0),
GetCharacters(is2), GetCharacters(is1), GetCharacters(is3)));
}
sLastTIS = newTIS;
}
/**
* When the direction is changed, all the children are notified.
* No need to treat the initial case separately because it is covered
* by the general case (sCachedIsForRTLLangage is initially false)
*/
if (sCachedIsForRTLLangage != tis.IsForRTLLanguage()) {
WidgetUtils::SendBidiKeyboardInfoToContent();
sCachedIsForRTLLangage = tis.IsForRTLLanguage();
}
}
// static
void
IMEInputHandler::FlushPendingMethods(nsITimer* aTimer, void* aClosure)
{
NS_ASSERTION(aClosure, "aClosure is null");
static_cast<IMEInputHandler*>(aClosure)->ExecutePendingMethods();
}
// static
CFArrayRef
IMEInputHandler::CreateAllIMEModeList()
{
const void* keys[] = { kTISPropertyInputSourceType };
const void* values[] = { kTISTypeKeyboardInputMode };
CFDictionaryRef filter =
::CFDictionaryCreate(kCFAllocatorDefault, keys, values, 1, NULL, NULL);
NS_ASSERTION(filter, "failed to create the filter");
CFArrayRef list = ::TISCreateInputSourceList(filter, true);
::CFRelease(filter);
return list;
}
// static
void
IMEInputHandler::DebugPrintAllIMEModes()
{
if (MOZ_LOG_TEST(gLog, LogLevel::Info)) {
CFArrayRef list = CreateAllIMEModeList();
MOZ_LOG(gLog, LogLevel::Info, ("IME mode configuration:"));
CFIndex idx = ::CFArrayGetCount(list);
TISInputSourceWrapper tis;
for (CFIndex i = 0; i < idx; ++i) {
TISInputSourceRef inputSource = static_cast<TISInputSourceRef>(
const_cast<void *>(::CFArrayGetValueAtIndex(list, i)));
tis.InitByTISInputSourceRef(inputSource);
nsAutoString name, isid, bundleID;
tis.GetLocalizedName(name);
tis.GetInputSourceID(isid);
tis.GetBundleID(bundleID);
MOZ_LOG(gLog, LogLevel::Info,
(" %s\t<%s>%s%s\n"
" bundled in <%s>\n",
NS_ConvertUTF16toUTF8(name).get(),
NS_ConvertUTF16toUTF8(isid).get(),
tis.IsASCIICapable() ? "" : "\t(Isn't ASCII capable)",
tis.IsEnabled() ? "" : "\t(Isn't Enabled)",
NS_ConvertUTF16toUTF8(bundleID).get()));
}
::CFRelease(list);
}
}
//static
TSMDocumentID
IMEInputHandler::GetCurrentTSMDocumentID()
{
// At least on Mac OS X 10.6.x and 10.7.x, ::TSMGetActiveDocument() has a bug.
// The result of ::TSMGetActiveDocument() isn't modified for new active text
// input context until [NSTextInputContext currentInputContext] is called.
// Therefore, we need to call it here.
[NSTextInputContext currentInputContext];
return ::TSMGetActiveDocument();
}
#pragma mark -
/******************************************************************************
*
* IMEInputHandler implementation #1
* The methods are releated to the pending methods. Some jobs should be
* run after the stack is finished, e.g, some methods cannot run the jobs
* during processing the focus event. And also some other jobs should be
* run at the next focus event is processed.
* The pending methods are recorded in mPendingMethods. They are executed
* by ExecutePendingMethods via FlushPendingMethods.
*
******************************************************************************/
nsresult
IMEInputHandler::NotifyIME(TextEventDispatcher* aTextEventDispatcher,
const IMENotification& aNotification)
{
switch (aNotification.mMessage) {
case REQUEST_TO_COMMIT_COMPOSITION:
CommitIMEComposition();
return NS_OK;
case REQUEST_TO_CANCEL_COMPOSITION:
CancelIMEComposition();
return NS_OK;
case NOTIFY_IME_OF_FOCUS:
if (IsFocused()) {
nsIWidget* widget = aTextEventDispatcher->GetWidget();
if (widget && widget->GetInputContext().IsPasswordEditor()) {
EnableSecureEventInput();
} else {
EnsureSecureEventInputDisabled();
}
}
OnFocusChangeInGecko(true);
return NS_OK;
case NOTIFY_IME_OF_BLUR:
OnFocusChangeInGecko(false);
return NS_OK;
case NOTIFY_IME_OF_SELECTION_CHANGE:
OnSelectionChange(aNotification);
return NS_OK;
case NOTIFY_IME_OF_POSITION_CHANGE:
OnLayoutChange();
return NS_OK;
default:
return NS_ERROR_NOT_IMPLEMENTED;
}
}
NS_IMETHODIMP_(IMENotificationRequests)
IMEInputHandler::GetIMENotificationRequests()
{
// XXX Shouldn't we move floating window which shows composition string
// when plugin has focus and its parent is scrolled or the window is
// moved?
return IMENotificationRequests();
}
NS_IMETHODIMP_(void)
IMEInputHandler::OnRemovedFrom(TextEventDispatcher* aTextEventDispatcher)
{
// XXX When input transaction is being stolen by add-on, what should we do?
}
NS_IMETHODIMP_(void)
IMEInputHandler::WillDispatchKeyboardEvent(
TextEventDispatcher* aTextEventDispatcher,
WidgetKeyboardEvent& aKeyboardEvent,
uint32_t aIndexOfKeypress,
void* aData)
{
// If the keyboard event is not caused by a native key event, we can do
// nothing here.
if (!aData) {
return;
}
KeyEventState* currentKeyEvent = static_cast<KeyEventState*>(aData);
NSEvent* nativeEvent = currentKeyEvent->mKeyEvent;
nsAString* insertString = currentKeyEvent->mInsertString;
if (aKeyboardEvent.mMessage == eKeyPress && aIndexOfKeypress == 0 &&
(!insertString || insertString->IsEmpty())) {
// Inform the child process that this is an event that we want a reply
// from.
// XXX This should be called only when the target is a remote process.
// However, it's difficult to check it under widget/.
// So, let's do this here for now, then,
// EventStateManager::PreHandleEvent() will reset the flags if
// the event target isn't in remote process.
aKeyboardEvent.MarkAsWaitingReplyFromRemoteProcess();
}
if (KeyboardLayoutOverrideRef().mOverrideEnabled) {
TISInputSourceWrapper tis;
tis.InitByLayoutID(KeyboardLayoutOverrideRef().mKeyboardLayout, true);
tis.WillDispatchKeyboardEvent(nativeEvent, insertString, aIndexOfKeypress,
aKeyboardEvent);
} else {
TISInputSourceWrapper::CurrentInputSource().
WillDispatchKeyboardEvent(nativeEvent, insertString, aIndexOfKeypress,
aKeyboardEvent);
}
// Remove basic modifiers from keypress event because if they are included
// but this causes inputting text, since TextEditor won't handle eKeyPress
// events whose ctrlKey, altKey or metaKey is true as text input.
// Note that this hack should be used only when an editor has focus because
// this is a hack for TextEditor and modifier key information may be
// important for current web app.
if (IsEditableContent() && insertString &&
aKeyboardEvent.mMessage == eKeyPress && aKeyboardEvent.mCharCode) {
aKeyboardEvent.mModifiers &= ~(MODIFIER_CONTROL |
MODIFIER_ALT |
MODIFIER_META);
}
}
void
IMEInputHandler::NotifyIMEOfFocusChangeInGecko()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::NotifyIMEOfFocusChangeInGecko, "
"Destroyed()=%s, IsFocused()=%s, inputContext=%p",
this, TrueOrFalse(Destroyed()), TrueOrFalse(IsFocused()),
mView ? [mView inputContext] : nullptr));
if (Destroyed()) {
return;
}
if (!IsFocused()) {
// retry at next focus event
mPendingMethods |= kNotifyIMEOfFocusChangeInGecko;
return;
}
MOZ_ASSERT(mView);
NSTextInputContext* inputContext = [mView inputContext];
NS_ENSURE_TRUE_VOID(inputContext);
// When an <input> element on a XUL <panel> element gets focus from an <input>
// element on the opener window of the <panel> element, the owner window
// still has native focus. Therefore, IMEs may store the opener window's
// level at this time because they don't know the actual focus is moved to
// different window. If IMEs try to get the newest window level after the
// focus change, we return the window level of the XUL <panel>'s widget.
// Therefore, let's emulate the native focus change. Then, IMEs can refresh
// the stored window level.
[inputContext deactivate];
[inputContext activate];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
IMEInputHandler::SyncASCIICapableOnly()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SyncASCIICapableOnly, "
"Destroyed()=%s, IsFocused()=%s, mIsASCIICapableOnly=%s, "
"GetCurrentTSMDocumentID()=%p",
this, TrueOrFalse(Destroyed()), TrueOrFalse(IsFocused()),
TrueOrFalse(mIsASCIICapableOnly), GetCurrentTSMDocumentID()));
if (Destroyed()) {
return;
}
if (!IsFocused()) {
// retry at next focus event
mPendingMethods |= kSyncASCIICapableOnly;
return;
}
TSMDocumentID doc = GetCurrentTSMDocumentID();
if (!doc) {
// retry
mPendingMethods |= kSyncASCIICapableOnly;
NS_WARNING("Application is active but there is no active document");
ResetTimer();
return;
}
if (mIsASCIICapableOnly) {
CFArrayRef ASCIICapableTISList = ::TISCreateASCIICapableInputSourceList();
::TSMSetDocumentProperty(doc,
kTSMDocumentEnabledInputSourcesPropertyTag,
sizeof(CFArrayRef),
&ASCIICapableTISList);
::CFRelease(ASCIICapableTISList);
} else {
::TSMRemoveDocumentProperty(doc,
kTSMDocumentEnabledInputSourcesPropertyTag);
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
IMEInputHandler::ResetTimer()
{
NS_ASSERTION(mPendingMethods != 0,
"There are not pending methods, why this is called?");
if (mTimer) {
mTimer->Cancel();
} else {
mTimer = NS_NewTimer();
NS_ENSURE_TRUE(mTimer, );
}
mTimer->InitWithNamedFuncCallback(FlushPendingMethods, this, 0,
nsITimer::TYPE_ONE_SHOT,
"IMEInputHandler::FlushPendingMethods");
}
void
IMEInputHandler::ExecutePendingMethods()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (mTimer) {
mTimer->Cancel();
mTimer = nullptr;
}
if (![[NSApplication sharedApplication] isActive]) {
// If we're not active, we should retry at focus event
return;
}
uint32_t pendingMethods = mPendingMethods;
// First, reset the pending method flags because if each methods cannot
// run now, they can reentry to the pending flags by theirselves.
mPendingMethods = 0;
if (pendingMethods & kSyncASCIICapableOnly)
SyncASCIICapableOnly();
if (pendingMethods & kNotifyIMEOfFocusChangeInGecko) {
NotifyIMEOfFocusChangeInGecko();
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
#pragma mark -
/******************************************************************************
*
* IMEInputHandler implementation (native event handlers)
*
******************************************************************************/
TextRangeType
IMEInputHandler::ConvertToTextRangeType(uint32_t aUnderlineStyle,
NSRange& aSelectedRange)
{
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::ConvertToTextRangeType, "
"aUnderlineStyle=%u, aSelectedRange.length=%lu,",
this, aUnderlineStyle, static_cast<unsigned long>(aSelectedRange.length)));
// We assume that aUnderlineStyle is NSUnderlineStyleSingle or
// NSUnderlineStyleThick. NSUnderlineStyleThick should indicate a selected
// clause. Otherwise, should indicate non-selected clause.
if (aSelectedRange.length == 0) {
switch (aUnderlineStyle) {
case NSUnderlineStyleSingle:
return TextRangeType::eRawClause;
case NSUnderlineStyleThick:
return TextRangeType::eSelectedRawClause;
default:
NS_WARNING("Unexpected line style");
return TextRangeType::eSelectedRawClause;
}
}
switch (aUnderlineStyle) {
case NSUnderlineStyleSingle:
return TextRangeType::eConvertedClause;
case NSUnderlineStyleThick:
return TextRangeType::eSelectedClause;
default:
NS_WARNING("Unexpected line style");
return TextRangeType::eSelectedClause;
}
}
uint32_t
IMEInputHandler::GetRangeCount(NSAttributedString *aAttrString)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
// Iterate through aAttrString for the NSUnderlineStyleAttributeName and
// count the different segments adjusting limitRange as we go.
uint32_t count = 0;
NSRange effectiveRange;
NSRange limitRange = NSMakeRange(0, [aAttrString length]);
while (limitRange.length > 0) {
[aAttrString attribute:NSUnderlineStyleAttributeName
atIndex:limitRange.location
longestEffectiveRange:&effectiveRange
inRange:limitRange];
limitRange =
NSMakeRange(NSMaxRange(effectiveRange),
NSMaxRange(limitRange) - NSMaxRange(effectiveRange));
count++;
}
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::GetRangeCount, aAttrString=\"%s\", count=%u",
this, GetCharacters([aAttrString string]), count));
return count;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(0);
}
already_AddRefed<mozilla::TextRangeArray>
IMEInputHandler::CreateTextRangeArray(NSAttributedString *aAttrString,
NSRange& aSelectedRange)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
RefPtr<mozilla::TextRangeArray> textRangeArray =
new mozilla::TextRangeArray();
// Note that we shouldn't append ranges when composition string
// is empty because it may cause TextComposition confused.
if (![aAttrString length]) {
return textRangeArray.forget();
}
// Convert the Cocoa range into the TextRange Array used in Gecko.
// Iterate through the attributed string and map the underline attribute to
// Gecko IME textrange attributes. We may need to change the code here if
// we change the implementation of validAttributesForMarkedText.
NSRange limitRange = NSMakeRange(0, [aAttrString length]);
uint32_t rangeCount = GetRangeCount(aAttrString);
for (uint32_t i = 0; i < rangeCount && limitRange.length > 0; i++) {
NSRange effectiveRange;
id attributeValue = [aAttrString attribute:NSUnderlineStyleAttributeName
atIndex:limitRange.location
longestEffectiveRange:&effectiveRange
inRange:limitRange];
TextRange range;
range.mStartOffset = effectiveRange.location;
range.mEndOffset = NSMaxRange(effectiveRange);
range.mRangeType =
ConvertToTextRangeType([attributeValue intValue], aSelectedRange);
textRangeArray->AppendElement(range);
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::CreateTextRangeArray, "
"range={ mStartOffset=%u, mEndOffset=%u, mRangeType=%s }",
this, range.mStartOffset, range.mEndOffset,
ToChar(range.mRangeType)));
limitRange =
NSMakeRange(NSMaxRange(effectiveRange),
NSMaxRange(limitRange) - NSMaxRange(effectiveRange));
}
// Get current caret position.
TextRange range;
range.mStartOffset = aSelectedRange.location + aSelectedRange.length;
range.mEndOffset = range.mStartOffset;
range.mRangeType = TextRangeType::eCaret;
textRangeArray->AppendElement(range);
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::CreateTextRangeArray, "
"range={ mStartOffset=%u, mEndOffset=%u, mRangeType=%s }",
this, range.mStartOffset, range.mEndOffset,
ToChar(range.mRangeType)));
return textRangeArray.forget();
NS_OBJC_END_TRY_ABORT_BLOCK_NSNULL;
}
bool
IMEInputHandler::DispatchCompositionStartEvent()
{
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::DispatchCompositionStartEvent, "
"mSelectedRange={ location=%lu, length=%lu }, Destroyed()=%s, "
"mView=%p, mWidget=%p, inputContext=%p, mIsIMEComposing=%s",
this, static_cast<unsigned long>(SelectedRange().location),
static_cast<unsigned long>(mSelectedRange.length),
TrueOrFalse(Destroyed()), mView, mWidget,
mView ? [mView inputContext] : nullptr, TrueOrFalse(mIsIMEComposing)));
RefPtr<IMEInputHandler> kungFuDeathGrip(this);
nsresult rv = mDispatcher->BeginNativeInputTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::DispatchCompositionStartEvent, "
"FAILED, due to BeginNativeInputTransaction() failure", this));
return false;
}
NS_ASSERTION(!mIsIMEComposing, "There is a composition already");
mIsIMEComposing = true;
KeyEventState* currentKeyEvent = GetCurrentKeyEvent();
mIsDeadKeyComposing =
currentKeyEvent && currentKeyEvent->mKeyEvent &&
TISInputSourceWrapper::CurrentInputSource().
IsDeadKey(currentKeyEvent->mKeyEvent);
nsEventStatus status;
rv = mDispatcher->StartComposition(status);
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::DispatchCompositionStartEvent, "
"FAILED, due to StartComposition() failure", this));
return false;
}
if (Destroyed()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::DispatchCompositionStartEvent, "
"destroyed by compositionstart event", this));
return false;
}
// FYI: compositionstart may cause committing composition by the webapp.
if (!mIsIMEComposing) {
return false;
}
// FYI: The selection range might have been modified by a compositionstart
// event handler.
mIMECompositionStart = SelectedRange().location;
return true;
}
bool
IMEInputHandler::DispatchCompositionChangeEvent(const nsString& aText,
NSAttributedString* aAttrString,
NSRange& aSelectedRange)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::DispatchCompositionChangeEvent, "
"aText=\"%s\", aAttrString=\"%s\", "
"aSelectedRange={ location=%lu, length=%lu }, Destroyed()=%s, mView=%p, "
"mWidget=%p, inputContext=%p, mIsIMEComposing=%s",
this, NS_ConvertUTF16toUTF8(aText).get(),
GetCharacters([aAttrString string]),
static_cast<unsigned long>(aSelectedRange.location),
static_cast<unsigned long>(aSelectedRange.length),
TrueOrFalse(Destroyed()), mView, mWidget,
mView ? [mView inputContext] : nullptr, TrueOrFalse(mIsIMEComposing)));
NS_ENSURE_TRUE(!Destroyed(), false);
NS_ASSERTION(mIsIMEComposing, "We're not in composition");
RefPtr<IMEInputHandler> kungFuDeathGrip(this);
nsresult rv = mDispatcher->BeginNativeInputTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::DispatchCompositionChangeEvent, "
"FAILED, due to BeginNativeInputTransaction() failure", this));
return false;
}
RefPtr<TextRangeArray> rangeArray =
CreateTextRangeArray(aAttrString, aSelectedRange);
rv = mDispatcher->SetPendingComposition(aText, rangeArray);
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::DispatchCompositionChangeEvent, "
"FAILED, due to SetPendingComposition() failure", this));
return false;
}
mSelectedRange.location = mIMECompositionStart + aSelectedRange.location;
mSelectedRange.length = aSelectedRange.length;
if (mIMECompositionString) {
[mIMECompositionString release];
}
mIMECompositionString = [[aAttrString string] retain];
nsEventStatus status;
rv = mDispatcher->FlushPendingComposition(status);
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::DispatchCompositionChangeEvent, "
"FAILED, due to FlushPendingComposition() failure", this));
return false;
}
if (Destroyed()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::DispatchCompositionChangeEvent, "
"destroyed by compositionchange event", this));
return false;
}
// FYI: compositionstart may cause committing composition by the webapp.
return mIsIMEComposing;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
bool
IMEInputHandler::DispatchCompositionCommitEvent(const nsAString* aCommitString)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::DispatchCompositionCommitEvent, "
"aCommitString=0x%p (\"%s\"), Destroyed()=%s, mView=%p, mWidget=%p, "
"inputContext=%p, mIsIMEComposing=%s",
this, aCommitString,
aCommitString ? NS_ConvertUTF16toUTF8(*aCommitString).get() : "",
TrueOrFalse(Destroyed()), mView, mWidget,
mView ? [mView inputContext] : nullptr, TrueOrFalse(mIsIMEComposing)));
NS_ASSERTION(mIsIMEComposing, "We're not in composition");
RefPtr<IMEInputHandler> kungFuDeathGrip(this);
if (!Destroyed()) {
// IME may query selection immediately after this, however, in e10s mode,
// OnSelectionChange() will be called asynchronously. Until then, we
// should emulate expected selection range if the webapp does nothing.
mSelectedRange.location = mIMECompositionStart;
if (aCommitString) {
mSelectedRange.location += aCommitString->Length();
} else if (mIMECompositionString) {
nsAutoString commitString;
nsCocoaUtils::GetStringForNSString(mIMECompositionString, commitString);
mSelectedRange.location += commitString.Length();
}
mSelectedRange.length = 0;
nsresult rv = mDispatcher->BeginNativeInputTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::DispatchCompositionCommitEvent, "
"FAILED, due to BeginNativeInputTransaction() failure", this));
} else {
nsEventStatus status;
rv = mDispatcher->CommitComposition(status, aCommitString);
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::DispatchCompositionCommitEvent, "
"FAILED, due to BeginNativeInputTransaction() failure", this));
}
}
}
mIsIMEComposing = mIsDeadKeyComposing = false;
mIMECompositionStart = UINT32_MAX;
if (mIMECompositionString) {
[mIMECompositionString release];
mIMECompositionString = nullptr;
}
if (Destroyed()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::DispatchCompositionCommitEvent, "
"destroyed by compositioncommit event", this));
return false;
}
return true;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
bool
IMEInputHandler::MaybeDispatchCurrentKeydownEvent(bool aIsProcessedByIME)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (Destroyed()) {
return false;
}
MOZ_ASSERT(mWidget);
KeyEventState* currentKeyEvent = GetCurrentKeyEvent();
if (!currentKeyEvent ||
!currentKeyEvent->CanDispatchKeyDownEvent()) {
return true;
}
NSEvent* nativeEvent = currentKeyEvent->mKeyEvent;
if (NS_WARN_IF(!nativeEvent) ||
[nativeEvent type] != NSKeyDown) {
return true;
}
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::MaybeDispatchKeydownEvent, aIsProcessedByIME=%s "
"currentKeyEvent={ mKeyEvent(%p)={ type=%s, keyCode=%s (0x%X) } }, "
"aIsProcessedBy=%s, IsDeadKeyComposing()=%s",
this, TrueOrFalse(aIsProcessedByIME), nativeEvent,
GetNativeKeyEventType(nativeEvent),
GetKeyNameForNativeKeyCode([nativeEvent keyCode]), [nativeEvent keyCode],
TrueOrFalse(IsIMEComposing()), TrueOrFalse(IsDeadKeyComposing())));
RefPtr<IMEInputHandler> kungFuDeathGrip(this);
RefPtr<TextEventDispatcher> dispatcher(mDispatcher);
nsresult rv = dispatcher->BeginNativeInputTransaction();
if (NS_WARN_IF(NS_FAILED(rv))) {
MOZ_LOG(gLog, LogLevel::Error,
("%p IMEInputHandler::DispatchKeyEventForFlagsChanged, "
"FAILED, due to BeginNativeInputTransaction() failure", this));
return false;
}
NSResponder* firstResponder = [[mView window] firstResponder];
// Mark currentKeyEvent as "dispatched eKeyDown event" and actually do it.
currentKeyEvent->mKeyDownDispatched = true;
RefPtr<nsChildView> widget(mWidget);
WidgetKeyboardEvent keydownEvent(true, eKeyDown, widget);
// Don't mark the eKeyDown event as "processed by IME" if the composition
// is started with dead key.
currentKeyEvent->InitKeyEvent(this, keydownEvent,
aIsProcessedByIME && !IsDeadKeyComposing());
nsEventStatus status = nsEventStatus_eIgnore;
dispatcher->DispatchKeyboardEvent(eKeyDown, keydownEvent, status,
currentKeyEvent);
currentKeyEvent->mKeyDownHandled =
(status == nsEventStatus_eConsumeNoDefault);
if (Destroyed()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::MaybeDispatchKeydownEvent, "
"widget was destroyed by keydown event", this));
return false;
}
// The key down event may have shifted the focus, in which case, we should
// not continue to handle current key sequence and let's commit current
// composition.
if (firstResponder != [[mView window] firstResponder]) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::MaybeDispatchKeydownEvent, "
"view lost focus by keydown event", this));
CommitIMEComposition();
return false;
}
return true;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
void
IMEInputHandler::InsertTextAsCommittingComposition(
NSAttributedString* aAttrString,
NSRange* aReplacementRange)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::InsertTextAsCommittingComposition, "
"aAttrString=\"%s\", aReplacementRange=%p { location=%lu, length=%lu }, "
"Destroyed()=%s, IsIMEComposing()=%s, "
"mMarkedRange={ location=%lu, length=%lu }",
this, GetCharacters([aAttrString string]), aReplacementRange,
static_cast<unsigned long>(aReplacementRange ? aReplacementRange->location : 0),
static_cast<unsigned long>(aReplacementRange ? aReplacementRange->length : 0),
TrueOrFalse(Destroyed()), TrueOrFalse(IsIMEComposing()),
static_cast<unsigned long>(mMarkedRange.location),
static_cast<unsigned long>(mMarkedRange.length)));
if (IgnoreIMECommit()) {
MOZ_CRASH("IMEInputHandler::InsertTextAsCommittingComposition() must not"
"be called while canceling the composition");
}
if (Destroyed()) {
return;
}
// When current keydown event causes this text input, let's dispatch
// eKeyDown event before any other events. Note that if we're in a
// composition, we've already dispatched eKeyDown event from
// TextInputHandler::HandleKeyDownEvent().
// XXX Should we mark the eKeyDown event as "processed by IME"?
// However, if the key causes two or more Unicode characters as
// UTF-16 string, this is used. So, perhaps, we need to improve
// HandleKeyDownEvent() before do that.
RefPtr<IMEInputHandler> kungFuDeathGrip(this);
if (!IsIMEComposing() && !MaybeDispatchCurrentKeydownEvent(false)) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::InsertTextAsCommittingComposition, eKeyDown "
"caused focus move or something and canceling the composition", this));
return;
}
// First, commit current composition with the latest composition string if the
// replacement range is different from marked range.
if (IsIMEComposing() && aReplacementRange &&
aReplacementRange->location != NSNotFound &&
!NSEqualRanges(MarkedRange(), *aReplacementRange)) {
if (!DispatchCompositionCommitEvent()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::InsertTextAsCommittingComposition, "
"destroyed by commiting composition for setting replacement range",
this));
return;
}
}
nsString str;
nsCocoaUtils::GetStringForNSString([aAttrString string], str);
if (!IsIMEComposing()) {
// If there is no selection and replacement range is specified, set the
// range as selection.
if (aReplacementRange && aReplacementRange->location != NSNotFound &&
!NSEqualRanges(SelectedRange(), *aReplacementRange)) {
NS_ENSURE_TRUE_VOID(SetSelection(*aReplacementRange));
}
if (!DispatchCompositionStartEvent()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::InsertTextAsCommittingComposition, "
"cannot continue handling composition after compositionstart", this));
return;
}
}
if (!DispatchCompositionCommitEvent(&str)) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::InsertTextAsCommittingComposition, "
"destroyed by compositioncommit event", this));
return;
}
mMarkedRange = NSMakeRange(NSNotFound, 0);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
IMEInputHandler::SetMarkedText(NSAttributedString* aAttrString,
NSRange& aSelectedRange,
NSRange* aReplacementRange)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
KeyEventState* currentKeyEvent = GetCurrentKeyEvent();
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SetMarkedText, "
"aAttrString=\"%s\", aSelectedRange={ location=%lu, length=%lu }, "
"aReplacementRange=%p { location=%lu, length=%lu }, "
"Destroyed()=%s, IsIMEComposing()=%s, "
"mMarkedRange={ location=%lu, length=%lu }, keyevent=%p, "
"keydownDispatched=%s, keydownHandled=%s, "
"keypressDispatched=%s, causedOtherKeyEvents=%s, "
"compositionDispatched=%s",
this, GetCharacters([aAttrString string]),
static_cast<unsigned long>(aSelectedRange.location),
static_cast<unsigned long>(aSelectedRange.length), aReplacementRange,
static_cast<unsigned long>(aReplacementRange ? aReplacementRange->location : 0),
static_cast<unsigned long>(aReplacementRange ? aReplacementRange->length : 0),
TrueOrFalse(Destroyed()), TrueOrFalse(IsIMEComposing()),
static_cast<unsigned long>(mMarkedRange.location),
static_cast<unsigned long>(mMarkedRange.length),
currentKeyEvent ? currentKeyEvent->mKeyEvent : nullptr,
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyDownDispatched) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyDownHandled) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mKeyPressDispatched) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mCausedOtherKeyEvents) : "N/A",
currentKeyEvent ?
TrueOrFalse(currentKeyEvent->mCompositionDispatched) : "N/A"));
RefPtr<IMEInputHandler> kungFuDeathGrip(this);
// If SetMarkedText() is called during handling a key press, that means that
// the key event caused this composition. So, keypress event shouldn't
// be dispatched later, let's mark the key event causing composition event.
if (currentKeyEvent) {
currentKeyEvent->mCompositionDispatched = true;
// When current keydown event causes this text input, let's dispatch
// eKeyDown event before any other events. Note that if we're in a
// composition, we've already dispatched eKeyDown event from
// TextInputHandler::HandleKeyDownEvent(). On the other hand, if we're
// not in composition, the key event starts new composition. So, we
// need to mark the eKeyDown event as "processed by IME".
if (!IsIMEComposing() && !MaybeDispatchCurrentKeydownEvent(true)) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SetMarkedText, eKeyDown caused focus move or "
"something and canceling the composition", this));
return;
}
}
if (Destroyed()) {
return;
}
// First, commit current composition with the latest composition string if the
// replacement range is different from marked range.
if (IsIMEComposing() && aReplacementRange &&
aReplacementRange->location != NSNotFound &&
!NSEqualRanges(MarkedRange(), *aReplacementRange)) {
AutoRestore<bool> ignoreIMECommit(mIgnoreIMECommit);
mIgnoreIMECommit = false;
if (!DispatchCompositionCommitEvent()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SetMarkedText, "
"destroyed by commiting composition for setting replacement range",
this));
return;
}
}
nsString str;
nsCocoaUtils::GetStringForNSString([aAttrString string], str);
mMarkedRange.length = str.Length();
if (!IsIMEComposing() && !str.IsEmpty()) {
// If there is no selection and replacement range is specified, set the
// range as selection.
if (aReplacementRange && aReplacementRange->location != NSNotFound &&
!NSEqualRanges(SelectedRange(), *aReplacementRange)) {
NS_ENSURE_TRUE_VOID(SetSelection(*aReplacementRange));
}
mMarkedRange.location = SelectedRange().location;
if (!DispatchCompositionStartEvent()) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SetMarkedText, cannot continue handling "
"composition after dispatching compositionstart", this));
return;
}
}
if (!str.IsEmpty()) {
if (!DispatchCompositionChangeEvent(str, aAttrString, aSelectedRange)) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SetMarkedText, cannot continue handling "
"composition after dispatching compositionchange", this));
}
return;
}
// If the composition string becomes empty string, we should commit
// current composition.
if (!DispatchCompositionCommitEvent(&EmptyString())) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SetMarkedText, "
"destroyed by compositioncommit event", this));
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
NSAttributedString*
IMEInputHandler::GetAttributedSubstringFromRange(NSRange& aRange,
NSRange* aActualRange)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::GetAttributedSubstringFromRange, "
"aRange={ location=%lu, length=%lu }, aActualRange=%p, Destroyed()=%s",
this, static_cast<unsigned long>(aRange.location),
static_cast<unsigned long>(aRange.length), aActualRange,
TrueOrFalse(Destroyed())));
if (aActualRange) {
*aActualRange = NSMakeRange(NSNotFound, 0);
}
if (Destroyed() || aRange.location == NSNotFound || aRange.length == 0) {
return nil;
}
RefPtr<IMEInputHandler> kungFuDeathGrip(this);
// If we're in composing, the queried range may be in the composition string.
// In such case, we should use mIMECompositionString since if the composition
// string is handled by a remote process, the content cache may be out of
// date.
// XXX Should we set composition string attributes? Although, Blink claims
// that some attributes of marked text are supported, but they return
// just marked string without any style. So, let's keep current behavior
// at least for now.
NSUInteger compositionLength =
mIMECompositionString ? [mIMECompositionString length] : 0;
if (mIMECompositionStart != UINT32_MAX &&
mIMECompositionStart >= aRange.location &&
mIMECompositionStart + compositionLength <=
aRange.location + aRange.length) {
NSRange range =
NSMakeRange(aRange.location - mIMECompositionStart, aRange.length);
NSString* nsstr = [mIMECompositionString substringWithRange:range];
NSMutableAttributedString* result =
[[[NSMutableAttributedString alloc] initWithString:nsstr
attributes:nil] autorelease];
// XXX We cannot return font information in this case. However, this
// case must occur only when IME tries to confirm if composing string
// is handled as expected.
if (aActualRange) {
*aActualRange = aRange;
}
if (MOZ_LOG_TEST(gLog, LogLevel::Info)) {
nsAutoString str;
nsCocoaUtils::GetStringForNSString(nsstr, str);
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::GetAttributedSubstringFromRange, "
"computed with mIMECompositionString (result string=\"%s\")",
this, NS_ConvertUTF16toUTF8(str).get()));
}
return result;
}
nsAutoString str;
WidgetQueryContentEvent textContent(true, eQueryTextContent, mWidget);
WidgetQueryContentEvent::Options options;
int64_t startOffset = aRange.location;
if (IsIMEComposing()) {
// The composition may be at different offset from the selection start
// offset at dispatching compositionstart because start of composition
// is fixed when composition string becomes non-empty in the editor.
// Therefore, we need to use query event which is relative to insertion
// point.
options.mRelativeToInsertionPoint = true;
startOffset -= mIMECompositionStart;
}
textContent.InitForQueryTextContent(startOffset, aRange.length, options);
textContent.RequestFontRanges();
DispatchEvent(textContent);
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::GetAttributedSubstringFromRange, "
"textContent={ mSucceeded=%s, mReply={ mString=\"%s\", mOffset=%u } }",
this, TrueOrFalse(textContent.mSucceeded),
NS_ConvertUTF16toUTF8(textContent.mReply.mString).get(),
textContent.mReply.mOffset));
if (!textContent.mSucceeded) {
return nil;
}
// We don't set vertical information at this point. If required,
// OS will calls drawsVerticallyForCharacterAtIndex.
NSMutableAttributedString* result =
nsCocoaUtils::GetNSMutableAttributedString(textContent.mReply.mString,
textContent.mReply.mFontRanges,
false,
mWidget->BackingScaleFactor());
if (aActualRange) {
aActualRange->location = textContent.mReply.mOffset;
aActualRange->length = textContent.mReply.mString.Length();
}
return result;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
bool
IMEInputHandler::HasMarkedText()
{
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::HasMarkedText, "
"mMarkedRange={ location=%lu, length=%lu }",
this, static_cast<unsigned long>(mMarkedRange.location),
static_cast<unsigned long>(mMarkedRange.length)));
return (mMarkedRange.location != NSNotFound) && (mMarkedRange.length != 0);
}
NSRange
IMEInputHandler::MarkedRange()
{
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::MarkedRange, "
"mMarkedRange={ location=%lu, length=%lu }",
this, static_cast<unsigned long>(mMarkedRange.location),
static_cast<unsigned long>(mMarkedRange.length)));
if (!HasMarkedText()) {
return NSMakeRange(NSNotFound, 0);
}
return mMarkedRange;
}
NSRange
IMEInputHandler::SelectedRange()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SelectedRange, Destroyed()=%s, mSelectedRange={ "
"location=%lu, length=%lu }",
this, TrueOrFalse(Destroyed()), static_cast<unsigned long>(mSelectedRange.location),
static_cast<unsigned long>(mSelectedRange.length)));
if (Destroyed()) {
return mSelectedRange;
}
if (mSelectedRange.location != NSNotFound) {
MOZ_ASSERT(mIMEHasFocus);
return mSelectedRange;
}
RefPtr<IMEInputHandler> kungFuDeathGrip(this);
WidgetQueryContentEvent selection(true, eQuerySelectedText, mWidget);
DispatchEvent(selection);
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SelectedRange, selection={ mSucceeded=%s, "
"mReply={ mOffset=%u, mString.Length()=%u } }",
this, TrueOrFalse(selection.mSucceeded), selection.mReply.mOffset,
selection.mReply.mString.Length()));
if (!selection.mSucceeded) {
return mSelectedRange;
}
mWritingMode = selection.GetWritingMode();
mRangeForWritingMode = NSMakeRange(selection.mReply.mOffset,
selection.mReply.mString.Length());
if (mIMEHasFocus) {
mSelectedRange = mRangeForWritingMode;
}
return mRangeForWritingMode;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(mSelectedRange);
}
bool
IMEInputHandler::DrawsVerticallyForCharacterAtIndex(uint32_t aCharIndex)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
if (Destroyed()) {
return false;
}
if (mRangeForWritingMode.location == NSNotFound) {
// Update cached writing-mode value for the current selection.
SelectedRange();
}
if (aCharIndex < mRangeForWritingMode.location ||
aCharIndex > mRangeForWritingMode.location + mRangeForWritingMode.length) {
// It's not clear to me whether this ever happens in practice, but if an
// IME ever wants to query writing mode at an offset outside the current
// selection, the writing-mode value may not be correct for the index.
// In that case, use FirstRectForCharacterRange to get a fresh value.
// This does more work than strictly necessary (we don't need the rect here),
// but should be a rare case.
NS_WARNING("DrawsVerticallyForCharacterAtIndex not using cached writing mode");
NSRange range = NSMakeRange(aCharIndex, 1);
NSRange actualRange;
FirstRectForCharacterRange(range, &actualRange);
}
return mWritingMode.IsVertical();
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
NSRect
IMEInputHandler::FirstRectForCharacterRange(NSRange& aRange,
NSRange* aActualRange)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::FirstRectForCharacterRange, Destroyed()=%s, "
"aRange={ location=%lu, length=%lu }, aActualRange=%p }",
this, TrueOrFalse(Destroyed()), static_cast<unsigned long>(aRange.location),
static_cast<unsigned long>(aRange.length), aActualRange));
// XXX this returns first character rect or caret rect, it is limitation of
// now. We need more work for returns first line rect. But current
// implementation is enough for IMEs.
NSRect rect = NSMakeRect(0.0, 0.0, 0.0, 0.0);
NSRange actualRange = NSMakeRange(NSNotFound, 0);
if (aActualRange) {
*aActualRange = actualRange;
}
if (Destroyed() || aRange.location == NSNotFound) {
return rect;
}
RefPtr<IMEInputHandler> kungFuDeathGrip(this);
LayoutDeviceIntRect r;
bool useCaretRect = (aRange.length == 0);
if (!useCaretRect) {
WidgetQueryContentEvent charRect(true, eQueryTextRect, mWidget);
WidgetQueryContentEvent::Options options;
int64_t startOffset = aRange.location;
if (IsIMEComposing()) {
// The composition may be at different offset from the selection start
// offset at dispatching compositionstart because start of composition
// is fixed when composition string becomes non-empty in the editor.
// Therefore, we need to use query event which is relative to insertion
// point.
options.mRelativeToInsertionPoint = true;
startOffset -= mIMECompositionStart;
}
charRect.InitForQueryTextRect(startOffset, 1, options);
DispatchEvent(charRect);
if (charRect.mSucceeded) {
r = charRect.mReply.mRect;
actualRange.location = charRect.mReply.mOffset;
actualRange.length = charRect.mReply.mString.Length();
mWritingMode = charRect.GetWritingMode();
mRangeForWritingMode = actualRange;
} else {
useCaretRect = true;
}
}
if (useCaretRect) {
WidgetQueryContentEvent caretRect(true, eQueryCaretRect, mWidget);
WidgetQueryContentEvent::Options options;
int64_t startOffset = aRange.location;
if (IsIMEComposing()) {
// The composition may be at different offset from the selection start
// offset at dispatching compositionstart because start of composition
// is fixed when composition string becomes non-empty in the editor.
// Therefore, we need to use query event which is relative to insertion
// point.
options.mRelativeToInsertionPoint = true;
startOffset -= mIMECompositionStart;
}
caretRect.InitForQueryCaretRect(startOffset, options);
DispatchEvent(caretRect);
if (!caretRect.mSucceeded) {
return rect;
}
r = caretRect.mReply.mRect;
r.width = 0;
actualRange.location = caretRect.mReply.mOffset;
actualRange.length = 0;
}
nsIWidget* rootWidget = mWidget->GetTopLevelWidget();
NSWindow* rootWindow =
static_cast<NSWindow*>(rootWidget->GetNativeData(NS_NATIVE_WINDOW));
NSView* rootView =
static_cast<NSView*>(rootWidget->GetNativeData(NS_NATIVE_WIDGET));
if (!rootWindow || !rootView) {
return rect;
}
rect = nsCocoaUtils::DevPixelsToCocoaPoints(r, mWidget->BackingScaleFactor());
rect = [rootView convertRect:rect toView:nil];
rect.origin = nsCocoaUtils::ConvertPointToScreen(rootWindow, rect.origin);
if (aActualRange) {
*aActualRange = actualRange;
}
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::FirstRectForCharacterRange, "
"useCaretRect=%s rect={ x=%f, y=%f, width=%f, height=%f }, "
"actualRange={ location=%lu, length=%lu }",
this, TrueOrFalse(useCaretRect), rect.origin.x, rect.origin.y,
rect.size.width, rect.size.height, static_cast<unsigned long>(actualRange.location),
static_cast<unsigned long>(actualRange.length)));
return rect;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NSMakeRect(0.0, 0.0, 0.0, 0.0));
}
NSUInteger
IMEInputHandler::CharacterIndexForPoint(NSPoint& aPoint)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::CharacterIndexForPoint, aPoint={ x=%f, y=%f }",
this, aPoint.x, aPoint.y));
NSWindow* mainWindow = [NSApp mainWindow];
if (!mWidget || !mainWindow) {
return NSNotFound;
}
WidgetQueryContentEvent charAt(true, eQueryCharacterAtPoint, mWidget);
NSPoint ptInWindow = nsCocoaUtils::ConvertPointFromScreen(mainWindow, aPoint);
NSPoint ptInView = [mView convertPoint:ptInWindow fromView:nil];
charAt.mRefPoint.x =
static_cast<int32_t>(ptInView.x) * mWidget->BackingScaleFactor();
charAt.mRefPoint.y =
static_cast<int32_t>(ptInView.y) * mWidget->BackingScaleFactor();
mWidget->DispatchWindowEvent(charAt);
if (!charAt.mSucceeded ||
charAt.mReply.mOffset == WidgetQueryContentEvent::NOT_FOUND ||
charAt.mReply.mOffset >= static_cast<uint32_t>(NSNotFound)) {
return NSNotFound;
}
return charAt.mReply.mOffset;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NSNotFound);
}
extern "C" {
extern NSString *NSTextInputReplacementRangeAttributeName;
}
NSArray*
IMEInputHandler::GetValidAttributesForMarkedText()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::GetValidAttributesForMarkedText", this));
// Return same attributes as Chromium (see render_widget_host_view_mac.mm)
// because most IMEs must be tested with Safari (OS default) and Chrome
// (having most market share). Therefore, we need to follow their behavior.
// XXX It might be better to reuse an array instance for this result because
// this may be called a lot. Note that Chromium does so.
return [NSArray arrayWithObjects:NSUnderlineStyleAttributeName,
NSUnderlineColorAttributeName,
NSMarkedClauseSegmentAttributeName,
NSTextInputReplacementRangeAttributeName,
nil];
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
#pragma mark -
/******************************************************************************
*
* IMEInputHandler implementation #2
*
******************************************************************************/
IMEInputHandler::IMEInputHandler(nsChildView* aWidget,
NSView<mozView> *aNativeView)
: TextInputHandlerBase(aWidget, aNativeView)
, mPendingMethods(0)
, mIMECompositionString(nullptr)
, mIMECompositionStart(UINT32_MAX)
, mRangeForWritingMode()
, mIsIMEComposing(false)
, mIsDeadKeyComposing(false)
, mIsIMEEnabled(true)
, mIsASCIICapableOnly(false)
, mIgnoreIMECommit(false)
, mIMEHasFocus(false)
{
InitStaticMembers();
mMarkedRange.location = NSNotFound;
mMarkedRange.length = 0;
mSelectedRange.location = NSNotFound;
mSelectedRange.length = 0;
}
IMEInputHandler::~IMEInputHandler()
{
if (mTimer) {
mTimer->Cancel();
mTimer = nullptr;
}
if (sFocusedIMEHandler == this) {
sFocusedIMEHandler = nullptr;
}
if (mIMECompositionString) {
[mIMECompositionString release];
mIMECompositionString = nullptr;
}
}
void
IMEInputHandler::OnFocusChangeInGecko(bool aFocus)
{
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::OnFocusChangeInGecko, aFocus=%s, Destroyed()=%s, "
"sFocusedIMEHandler=%p",
this, TrueOrFalse(aFocus), TrueOrFalse(Destroyed()), sFocusedIMEHandler));
mSelectedRange.location = NSNotFound; // Marking dirty
mIMEHasFocus = aFocus;
// This is called when the native focus is changed and when the native focus
// isn't changed but the focus is changed in Gecko.
if (!aFocus) {
if (sFocusedIMEHandler == this)
sFocusedIMEHandler = nullptr;
return;
}
sFocusedIMEHandler = this;
// We need to notify IME of focus change in Gecko as native focus change
// because the window level of the focused element in Gecko may be changed.
mPendingMethods |= kNotifyIMEOfFocusChangeInGecko;
ResetTimer();
}
bool
IMEInputHandler::OnDestroyWidget(nsChildView* aDestroyingWidget)
{
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::OnDestroyWidget, aDestroyingWidget=%p, "
"sFocusedIMEHandler=%p, IsIMEComposing()=%s",
this, aDestroyingWidget, sFocusedIMEHandler,
TrueOrFalse(IsIMEComposing())));
// If we're not focused, the focused IMEInputHandler may have been
// created by another widget/nsChildView.
if (sFocusedIMEHandler && sFocusedIMEHandler != this) {
sFocusedIMEHandler->OnDestroyWidget(aDestroyingWidget);
}
if (!TextInputHandlerBase::OnDestroyWidget(aDestroyingWidget)) {
return false;
}
if (IsIMEComposing()) {
// If our view is in the composition, we should clean up it.
CancelIMEComposition();
}
mSelectedRange.location = NSNotFound; // Marking dirty
mIMEHasFocus = false;
return true;
}
void
IMEInputHandler::SendCommittedText(NSString *aString)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SendCommittedText, mView=%p, mWidget=%p, "
"inputContext=%p, mIsIMEComposing=%s",
this, mView, mWidget, mView ? [mView inputContext] : nullptr,
TrueOrFalse(mIsIMEComposing)));
NS_ENSURE_TRUE(mWidget, );
// XXX We should send the string without mView.
if (!mView) {
return;
}
NSAttributedString* attrStr =
[[NSAttributedString alloc] initWithString:aString];
if ([mView conformsToProtocol:@protocol(NSTextInputClient)]) {
NSObject<NSTextInputClient>* textInputClient =
static_cast<NSObject<NSTextInputClient>*>(mView);
[textInputClient insertText:attrStr
replacementRange:NSMakeRange(NSNotFound, 0)];
}
// Last resort. If we cannot retrieve NSTextInputProtocol from mView
// or blocking to call our InsertText(), we should call InsertText()
// directly to commit composition forcibly.
if (mIsIMEComposing) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::SendCommittedText, trying to insert text directly "
"due to IME not calling our InsertText()", this));
static_cast<TextInputHandler*>(this)->InsertText(attrStr);
MOZ_ASSERT(!mIsIMEComposing);
}
[attrStr release];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
IMEInputHandler::KillIMEComposition()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::KillIMEComposition, mView=%p, mWidget=%p, "
"inputContext=%p, mIsIMEComposing=%s, "
"Destroyed()=%s, IsFocused()=%s",
this, mView, mWidget, mView ? [mView inputContext] : nullptr,
TrueOrFalse(mIsIMEComposing), TrueOrFalse(Destroyed()),
TrueOrFalse(IsFocused())));
if (Destroyed() || NS_WARN_IF(!mView)) {
return;
}
NSTextInputContext* inputContext = [mView inputContext];
if (NS_WARN_IF(!inputContext)) {
return;
}
[inputContext discardMarkedText];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
IMEInputHandler::CommitIMEComposition()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::CommitIMEComposition, mIMECompositionString=%s",
this, GetCharacters(mIMECompositionString)));
// If this is called before dispatching eCompositionStart, IsIMEComposing()
// returns false. Even in such case, we need to commit composition *in*
// IME if this is called by preceding eKeyDown event of eCompositionStart.
// So, we need to call KillIMEComposition() even when IsIMEComposing()
// returns false.
KillIMEComposition();
if (!IsIMEComposing())
return;
// If the composition is still there, KillIMEComposition only kills the
// composition in TSM. We also need to finish the our composition too.
SendCommittedText(mIMECompositionString);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
IMEInputHandler::CancelIMEComposition()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!IsIMEComposing())
return;
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::CancelIMEComposition, mIMECompositionString=%s",
this, GetCharacters(mIMECompositionString)));
// For canceling the current composing, we need to ignore the param of
// insertText. But this code is ugly...
mIgnoreIMECommit = true;
KillIMEComposition();
mIgnoreIMECommit = false;
if (!IsIMEComposing())
return;
// If the composition is still there, KillIMEComposition only kills the
// composition in TSM. We also need to kill the our composition too.
SendCommittedText(@"");
NS_OBJC_END_TRY_ABORT_BLOCK;
}
bool
IMEInputHandler::IsFocused()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
NS_ENSURE_TRUE(!Destroyed(), false);
NSWindow* window = [mView window];
NS_ENSURE_TRUE(window, false);
return [window firstResponder] == mView &&
[window isKeyWindow] &&
[[NSApplication sharedApplication] isActive];
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
bool
IMEInputHandler::IsIMEOpened()
{
TISInputSourceWrapper tis;
tis.InitByCurrentInputSource();
return tis.IsOpenedIMEMode();
}
void
IMEInputHandler::SetASCIICapableOnly(bool aASCIICapableOnly)
{
if (aASCIICapableOnly == mIsASCIICapableOnly)
return;
CommitIMEComposition();
mIsASCIICapableOnly = aASCIICapableOnly;
SyncASCIICapableOnly();
}
void
IMEInputHandler::EnableIME(bool aEnableIME)
{
if (aEnableIME == mIsIMEEnabled)
return;
CommitIMEComposition();
mIsIMEEnabled = aEnableIME;
}
void
IMEInputHandler::SetIMEOpenState(bool aOpenIME)
{
if (!IsFocused() || IsIMEOpened() == aOpenIME)
return;
if (!aOpenIME) {
TISInputSourceWrapper tis;
tis.InitByCurrentASCIICapableInputSource();
tis.Select();
return;
}
// If we know the latest IME opened mode, we should select it.
if (sLatestIMEOpenedModeInputSourceID) {
TISInputSourceWrapper tis;
tis.InitByInputSourceID(sLatestIMEOpenedModeInputSourceID);
tis.Select();
return;
}
// XXX If the current input source is a mode of IME, we should turn on it,
// but we haven't found such way...
// Finally, we should refer the system locale but this is a little expensive,
// we shouldn't retry this (if it was succeeded, we already set
// sLatestIMEOpenedModeInputSourceID at that time).
static bool sIsPrefferredIMESearched = false;
if (sIsPrefferredIMESearched)
return;
sIsPrefferredIMESearched = true;
OpenSystemPreferredLanguageIME();
}
void
IMEInputHandler::OpenSystemPreferredLanguageIME()
{
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::OpenSystemPreferredLanguageIME", this));
CFArrayRef langList = ::CFLocaleCopyPreferredLanguages();
if (!langList) {
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::OpenSystemPreferredLanguageIME, langList is NULL",
this));
return;
}
CFIndex count = ::CFArrayGetCount(langList);
for (CFIndex i = 0; i < count; i++) {
CFLocaleRef locale =
::CFLocaleCreate(kCFAllocatorDefault,
static_cast<CFStringRef>(::CFArrayGetValueAtIndex(langList, i)));
if (!locale) {
continue;
}
bool changed = false;
CFStringRef lang = static_cast<CFStringRef>(
::CFLocaleGetValue(locale, kCFLocaleLanguageCode));
NS_ASSERTION(lang, "lang is null");
if (lang) {
TISInputSourceWrapper tis;
tis.InitByLanguage(lang);
if (tis.IsOpenedIMEMode()) {
if (MOZ_LOG_TEST(gLog, LogLevel::Info)) {
CFStringRef foundTIS;
tis.GetInputSourceID(foundTIS);
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::OpenSystemPreferredLanguageIME, "
"foundTIS=%s, lang=%s",
this, GetCharacters(foundTIS), GetCharacters(lang)));
}
tis.Select();
changed = true;
}
}
::CFRelease(locale);
if (changed) {
break;
}
}
::CFRelease(langList);
}
void
IMEInputHandler::OnSelectionChange(const IMENotification& aIMENotification)
{
MOZ_LOG(gLog, LogLevel::Info,
("%p IMEInputHandler::OnSelectionChange", this));
if (aIMENotification.mSelectionChangeData.mOffset == UINT32_MAX) {
mSelectedRange.location = NSNotFound;
mSelectedRange.length = 0;
mRangeForWritingMode.location = NSNotFound;
mRangeForWritingMode.length = 0;
return;
}
mWritingMode = aIMENotification.mSelectionChangeData.GetWritingMode();
mRangeForWritingMode =
NSMakeRange(aIMENotification.mSelectionChangeData.mOffset,
aIMENotification.mSelectionChangeData.Length());
if (mIMEHasFocus) {
mSelectedRange = mRangeForWritingMode;
}
}
void
IMEInputHandler::OnLayoutChange()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!IsFocused()) {
return;
}
NSTextInputContext* inputContext = [mView inputContext];
[inputContext invalidateCharacterCoordinates];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
bool
IMEInputHandler::OnHandleEvent(NSEvent* aEvent)
{
if (!IsFocused()) {
return false;
}
NSTextInputContext* inputContext = [mView inputContext];
return [inputContext handleEvent:aEvent];
}
#pragma mark -
/******************************************************************************
*
* TextInputHandlerBase implementation
*
******************************************************************************/
int32_t TextInputHandlerBase::sSecureEventInputCount = 0;
NS_IMPL_ISUPPORTS(TextInputHandlerBase,
TextEventDispatcherListener,
nsISupportsWeakReference)
TextInputHandlerBase::TextInputHandlerBase(nsChildView* aWidget,
NSView<mozView> *aNativeView)
: mWidget(aWidget)
, mDispatcher(aWidget->GetTextEventDispatcher())
{
gHandlerInstanceCount++;
mView = [aNativeView retain];
}
TextInputHandlerBase::~TextInputHandlerBase()
{
[mView release];
if (--gHandlerInstanceCount == 0) {
TISInputSourceWrapper::Shutdown();
}
}
bool
TextInputHandlerBase::OnDestroyWidget(nsChildView* aDestroyingWidget)
{
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandlerBase::OnDestroyWidget, "
"aDestroyingWidget=%p, mWidget=%p",
this, aDestroyingWidget, mWidget));
if (aDestroyingWidget != mWidget) {
return false;
}
mWidget = nullptr;
mDispatcher = nullptr;
return true;
}
bool
TextInputHandlerBase::DispatchEvent(WidgetGUIEvent& aEvent)
{
return mWidget->DispatchWindowEvent(aEvent);
}
void
TextInputHandlerBase::InitKeyEvent(NSEvent *aNativeKeyEvent,
WidgetKeyboardEvent& aKeyEvent,
bool aIsProcessedByIME,
const nsAString* aInsertString)
{
NS_ASSERTION(aNativeKeyEvent, "aNativeKeyEvent must not be NULL");
if (mKeyboardOverride.mOverrideEnabled) {
TISInputSourceWrapper tis;
tis.InitByLayoutID(mKeyboardOverride.mKeyboardLayout, true);
tis.InitKeyEvent(aNativeKeyEvent, aKeyEvent, aIsProcessedByIME,
aInsertString);
return;
}
TISInputSourceWrapper::CurrentInputSource().
InitKeyEvent(aNativeKeyEvent, aKeyEvent, aIsProcessedByIME, aInsertString);
}
nsresult
TextInputHandlerBase::SynthesizeNativeKeyEvent(
int32_t aNativeKeyboardLayout,
int32_t aNativeKeyCode,
uint32_t aModifierFlags,
const nsAString& aCharacters,
const nsAString& aUnmodifiedCharacters)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
static const uint32_t sModifierFlagMap[][2] = {
{ nsIWidget::CAPS_LOCK, NSAlphaShiftKeyMask },
{ nsIWidget::SHIFT_L, NSShiftKeyMask | 0x0002 },
{ nsIWidget::SHIFT_R, NSShiftKeyMask | 0x0004 },
{ nsIWidget::CTRL_L, NSControlKeyMask | 0x0001 },
{ nsIWidget::CTRL_R, NSControlKeyMask | 0x2000 },
{ nsIWidget::ALT_L, NSAlternateKeyMask | 0x0020 },
{ nsIWidget::ALT_R, NSAlternateKeyMask | 0x0040 },
{ nsIWidget::COMMAND_L, NSCommandKeyMask | 0x0008 },
{ nsIWidget::COMMAND_R, NSCommandKeyMask | 0x0010 },
{ nsIWidget::NUMERIC_KEY_PAD, NSNumericPadKeyMask },
{ nsIWidget::HELP, NSHelpKeyMask },
{ nsIWidget::FUNCTION, NSFunctionKeyMask }
};
uint32_t modifierFlags = 0;
for (uint32_t i = 0; i < ArrayLength(sModifierFlagMap); ++i) {
if (aModifierFlags & sModifierFlagMap[i][0]) {
modifierFlags |= sModifierFlagMap[i][1];
}
}
NSInteger windowNumber = [[mView window] windowNumber];
bool sendFlagsChangedEvent = IsModifierKey(aNativeKeyCode);
NSEventType eventType = sendFlagsChangedEvent ? NSFlagsChanged : NSKeyDown;
NSEvent* downEvent =
[NSEvent keyEventWithType:eventType
location:NSMakePoint(0,0)
modifierFlags:modifierFlags
timestamp:0
windowNumber:windowNumber
context:[NSGraphicsContext currentContext]
characters:nsCocoaUtils::ToNSString(aCharacters)
charactersIgnoringModifiers:nsCocoaUtils::ToNSString(aUnmodifiedCharacters)
isARepeat:NO
keyCode:aNativeKeyCode];
NSEvent* upEvent = sendFlagsChangedEvent ?
nil : nsCocoaUtils::MakeNewCocoaEventWithType(NSKeyUp, downEvent);
if (downEvent && (sendFlagsChangedEvent || upEvent)) {
KeyboardLayoutOverride currentLayout = mKeyboardOverride;
mKeyboardOverride.mKeyboardLayout = aNativeKeyboardLayout;
mKeyboardOverride.mOverrideEnabled = true;
[NSApp sendEvent:downEvent];
if (upEvent) {
[NSApp sendEvent:upEvent];
}
// processKeyDownEvent and keyUp block exceptions so we're sure to
// reach here to restore mKeyboardOverride
mKeyboardOverride = currentLayout;
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NSInteger
TextInputHandlerBase::GetWindowLevel()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandlerBase::GetWindowLevel, Destryoed()=%s",
this, TrueOrFalse(Destroyed())));
if (Destroyed()) {
return NSNormalWindowLevel;
}
// When an <input> element on a XUL <panel> is focused, the actual focused view
// is the panel's parent view (mView). But the editor is displayed on the
// popped-up widget's view (editorView). We want the latter's window level.
NSView<mozView>* editorView = mWidget->GetEditorView();
NS_ENSURE_TRUE(editorView, NSNormalWindowLevel);
NSInteger windowLevel = [[editorView window] level];
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandlerBase::GetWindowLevel, windowLevel=%s (%lX)",
this, GetWindowLevelName(windowLevel), static_cast<unsigned long>(windowLevel)));
return windowLevel;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NSNormalWindowLevel);
}
NS_IMETHODIMP
TextInputHandlerBase::AttachNativeKeyEvent(WidgetKeyboardEvent& aKeyEvent)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// Don't try to replace a native event if one already exists.
// OS X doesn't have an OS modifier, can't make a native event.
if (aKeyEvent.mNativeKeyEvent || aKeyEvent.mModifiers & MODIFIER_OS) {
return NS_OK;
}
MOZ_LOG(gLog, LogLevel::Info,
("%p TextInputHandlerBase::AttachNativeKeyEvent, key=0x%X, char=0x%X, "
"mod=0x%X", this, aKeyEvent.mKeyCode, aKeyEvent.mCharCode,
aKeyEvent.mModifiers));
NSInteger windowNumber = [[mView window] windowNumber];
NSGraphicsContext* context = [NSGraphicsContext currentContext];
aKeyEvent.mNativeKeyEvent =
nsCocoaUtils::MakeNewCococaEventFromWidgetEvent(aKeyEvent,
windowNumber,
context);
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
bool
TextInputHandlerBase::SetSelection(NSRange& aRange)
{
MOZ_ASSERT(!Destroyed());
RefPtr<TextInputHandlerBase> kungFuDeathGrip(this);
WidgetSelectionEvent selectionEvent(true, eSetSelection, mWidget);
selectionEvent.mOffset = aRange.location;
selectionEvent.mLength = aRange.length;
selectionEvent.mReversed = false;
selectionEvent.mExpandToClusterBoundary = false;
DispatchEvent(selectionEvent);
NS_ENSURE_TRUE(selectionEvent.mSucceeded, false);
return !Destroyed();
}
/* static */ bool
TextInputHandlerBase::IsPrintableChar(char16_t aChar)
{
return (aChar >= 0x20 && aChar <= 0x7E) || aChar >= 0xA0;
}
/* static */ bool
TextInputHandlerBase::IsSpecialGeckoKey(UInt32 aNativeKeyCode)
{
// this table is used to determine which keys are special and should not
// generate a charCode
switch (aNativeKeyCode) {
// modifiers - we don't get separate events for these yet
case kVK_Escape:
case kVK_Shift:
case kVK_RightShift:
case kVK_Command:
case kVK_RightCommand:
case kVK_CapsLock:
case kVK_Control:
case kVK_RightControl:
case kVK_Option:
case kVK_RightOption:
case kVK_ANSI_KeypadClear:
case kVK_Function:
// function keys
case kVK_F1:
case kVK_F2:
case kVK_F3:
case kVK_F4:
case kVK_F5:
case kVK_F6:
case kVK_F7:
case kVK_F8:
case kVK_F9:
case kVK_F10:
case kVK_F11:
case kVK_F12:
case kVK_PC_Pause:
case kVK_PC_ScrollLock:
case kVK_PC_PrintScreen:
case kVK_F16:
case kVK_F17:
case kVK_F18:
case kVK_F19:
case kVK_PC_Insert:
case kVK_PC_Delete:
case kVK_Tab:
case kVK_PC_Backspace:
case kVK_PC_ContextMenu:
case kVK_JIS_Eisu:
case kVK_JIS_Kana:
case kVK_Home:
case kVK_End:
case kVK_PageUp:
case kVK_PageDown:
case kVK_LeftArrow:
case kVK_RightArrow:
case kVK_UpArrow:
case kVK_DownArrow:
case kVK_Return:
case kVK_ANSI_KeypadEnter:
case kVK_Powerbook_KeypadEnter:
return true;
}
return false;
}
/* static */ bool
TextInputHandlerBase::IsNormalCharInputtingEvent(
const WidgetKeyboardEvent& aKeyEvent)
{
// this is not character inputting event, simply.
if (aKeyEvent.mNativeCharacters.IsEmpty() ||
aKeyEvent.IsMeta()) {
return false;
}
return !IsControlChar(aKeyEvent.mNativeCharacters[0]);
}
/* static */ bool
TextInputHandlerBase::IsModifierKey(UInt32 aNativeKeyCode)
{
switch (aNativeKeyCode) {
case kVK_CapsLock:
case kVK_RightCommand:
case kVK_Command:
case kVK_Shift:
case kVK_Option:
case kVK_Control:
case kVK_RightShift:
case kVK_RightOption:
case kVK_RightControl:
case kVK_Function:
return true;
}
return false;
}
/* static */ void
TextInputHandlerBase::EnableSecureEventInput()
{
sSecureEventInputCount++;
::EnableSecureEventInput();
}
/* static */ void
TextInputHandlerBase::DisableSecureEventInput()
{
if (!sSecureEventInputCount) {
return;
}
sSecureEventInputCount--;
::DisableSecureEventInput();
}
/* static */ bool
TextInputHandlerBase::IsSecureEventInputEnabled()
{
NS_ASSERTION(!!sSecureEventInputCount == !!::IsSecureEventInputEnabled(),
"Some other process has enabled secure event input");
return !!sSecureEventInputCount;
}
/* static */ void
TextInputHandlerBase::EnsureSecureEventInputDisabled()
{
while (sSecureEventInputCount) {
TextInputHandlerBase::DisableSecureEventInput();
}
}
#pragma mark -
/******************************************************************************
*
* TextInputHandlerBase::KeyEventState implementation
*
******************************************************************************/
void
TextInputHandlerBase::KeyEventState::InitKeyEvent(
TextInputHandlerBase* aHandler,
WidgetKeyboardEvent& aKeyEvent,
bool aIsProcessedByIME)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
MOZ_ASSERT(aHandler);
MOZ_RELEASE_ASSERT(mKeyEvent);
NSEvent* nativeEvent = mKeyEvent;
if (!mInsertedString.IsEmpty()) {
nsAutoString unhandledString;
GetUnhandledString(unhandledString);
NSString* unhandledNSString =
nsCocoaUtils::ToNSString(unhandledString);
// If the key event's some characters were already handled by
// InsertString() calls, we need to create a dummy event which doesn't
// include the handled characters.
nativeEvent =
[NSEvent keyEventWithType:[mKeyEvent type]
location:[mKeyEvent locationInWindow]
modifierFlags:[mKeyEvent modifierFlags]
timestamp:[mKeyEvent timestamp]
windowNumber:[mKeyEvent windowNumber]
context:[mKeyEvent context]
characters:unhandledNSString
charactersIgnoringModifiers:[mKeyEvent charactersIgnoringModifiers]
isARepeat:[mKeyEvent isARepeat]
keyCode:[mKeyEvent keyCode]];
}
aKeyEvent.mUniqueId = mUniqueId;
aHandler->InitKeyEvent(nativeEvent, aKeyEvent, aIsProcessedByIME,
mInsertString);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
TextInputHandlerBase::KeyEventState::GetUnhandledString(
nsAString& aUnhandledString) const
{
aUnhandledString.Truncate();
if (NS_WARN_IF(!mKeyEvent)) {
return;
}
nsAutoString characters;
nsCocoaUtils::GetStringForNSString([mKeyEvent characters],
characters);
if (characters.IsEmpty()) {
return;
}
if (mInsertedString.IsEmpty()) {
aUnhandledString = characters;
return;
}
// The insertes string must match with the start of characters.
MOZ_ASSERT(StringBeginsWith(characters, mInsertedString));
aUnhandledString = nsDependentSubstring(characters, mInsertedString.Length());
}
#pragma mark -
/******************************************************************************
*
* TextInputHandlerBase::AutoInsertStringClearer implementation
*
******************************************************************************/
TextInputHandlerBase::AutoInsertStringClearer::~AutoInsertStringClearer()
{
if (mState && mState->mInsertString) {
// If inserting string is a part of characters of the event,
// we should record it as inserted string.
nsAutoString characters;
nsCocoaUtils::GetStringForNSString([mState->mKeyEvent characters],
characters);
nsAutoString insertedString(mState->mInsertedString);
insertedString += *mState->mInsertString;
if (StringBeginsWith(characters, insertedString)) {
mState->mInsertedString = insertedString;
}
}
if (mState) {
mState->mInsertString = nullptr;
}
}
Ссылка в новой задаче Показать git blame Копировать постоянную ссылку