/
TextInputHandler.mm
4563 lines (3976 loc) · 155 KB
/
TextInputHandler.mm
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "TextInputHandler.h"
#include "mozilla/Logging.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/AutoRestore.h"
#include "mozilla/MiscEvents.h"
#include "mozilla/MouseEvents.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 NSString* aString)
{
nsAutoString str;
nsCocoaUtils::GetStringForNSString(aString, str);
if (str.IsEmpty()) {
return "";
}
nsAutoString escapedStr;
for (uint32_t i = 0; i < str.Length(); i++) {
char16_t ch = str[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 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, aKeyCode, aModifiers, 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=%llu",
this, err, len));
NS_ENSURE_TRUE(err == noErr, false);
if (len == 0) {
return true;
}
NS_ENSURE_TRUE(EnsureStringLength(aStr, len), 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));
}
void
TISInputSourceWrapper::InitByInputSourceID(const char* aID)
{
Clear();
if (!aID)
return;
CFStringRef idstr = ::CFStringCreateWithCString(kCFAllocatorDefault, aID,
kCFStringEncodingASCII);
InitByInputSourceID(idstr);
::CFRelease(idstr);
}
void
TISInputSourceWrapper::InitByInputSourceID(const nsAFlatString &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 = UCS2_CHAR_IS_BIDI(ch);
}
return mIsRTL != 0;
}
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,
const nsAString *aInsertString)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
MOZ_LOG(gLog, LogLevel::Info,
("%p TISInputSourceWrapper::InitKeyEvent, aNativeKeyEvent=%p, "
"aKeyEvent.mMessage=%s, aInsertString=%p, IsOpenedIMEMode()=%s",
this, aNativeKeyEvent, GetGeckoKeyEventType(aKeyEvent), aInsertString,
TrueOrFalse(IsOpenedIMEMode())));
NS_ENSURE_TRUE(aNativeKeyEvent, );
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);
aKeyEvent.mIsChar = false; // XXX not used in XP level
UInt32 kbType = GetKbdType();
UInt32 nativeKeyCode = [aNativeKeyEvent keyCode];
aKeyEvent.mKeyCode =
ComputeGeckoKeyCode(nativeKeyCode, kbType, aKeyEvent.IsMeta());
switch (nativeKeyCode) {
case kVK_Command:
case kVK_Shift:
case kVK_Option:
case kVK_Control:
aKeyEvent.mLocation = nsIDOMKeyEvent::DOM_KEY_LOCATION_LEFT;
break;
case kVK_RightCommand:
case kVK_RightShift:
case kVK_RightOption:
case kVK_RightControl:
aKeyEvent.mLocation = nsIDOMKeyEvent::DOM_KEY_LOCATION_RIGHT;
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 = nsIDOMKeyEvent::DOM_KEY_LOCATION_NUMPAD;
break;
default:
aKeyEvent.mLocation = nsIDOMKeyEvent::DOM_KEY_LOCATION_STANDARD;
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 (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()) {
nsCocoaUtils::GetStringForNSString([aNativeKeyEvent characters],
aKeyEvent.mKeyValue);
if (aKeyEvent.mKeyValue.IsEmpty() ||
IsControlChar(aKeyEvent.mKeyValue[0])) {
NSUInteger cocoaState =
[aNativeKeyEvent modifierFlags] & ~NSControlKeyMask;
UInt32 carbonState = nsCocoaUtils::ConvertToCarbonModifier(cocoaState);
aKeyEvent.mKeyValue =
TranslateToChar(nativeKeyCode, carbonState, kbType);
}
}
// 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.