/* static */ void
KeymapWrapper::InitKeyEvent(nsKeyEvent& aKeyEvent,
GdkEventKey* aGdkKeyEvent)
{
KeymapWrapper* keymapWrapper = GetInstance();
aKeyEvent.keyCode = ComputeDOMKeyCode(aGdkKeyEvent);
// NOTE: The state of given key event indicates adjacent state of
// modifier keys. E.g., even if the event is Shift key press event,
// the bit for Shift is still false. By the same token, even if the
// event is Shift key release event, the bit for Shift is still true.
// Unfortunately, gdk_keyboard_get_modifiers() returns current modifier
// state. It means if there're some pending modifier key press or
// key release events, the result isn't what we want.
// Temporarily, we should compute the state only when the key event
// is GDK_KEY_PRESS.
// XXX If we could know the modifier keys state at the key release event,
// we should cut out changingMask from modifierState.
guint modifierState = aGdkKeyEvent->state;
if (aGdkKeyEvent->is_modifier && aGdkKeyEvent->type == GDK_KEY_PRESS) {
ModifierKey* modifierKey =
keymapWrapper->GetModifierKey(aGdkKeyEvent->hardware_keycode);
if (modifierKey) {
// If new modifier key is pressed, add the pressed mod mask.
modifierState |= modifierKey->mMask;
}
}
InitInputEvent(aKeyEvent, modifierState);
PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): InitKeyEvent, modifierState=0x%08X "
"aGdkKeyEvent={ type=%s, keyval=%s(0x%X), state=0x%08X, "
"hardware_keycode=0x%08X, is_modifier=%s } "
"aKeyEvent={ message=%s, isShift=%s, isControl=%s, "
"isAlt=%s, isMeta=%s }",
keymapWrapper, modifierState,
((aGdkKeyEvent->type == GDK_KEY_PRESS) ?
"GDK_KEY_PRESS" : "GDK_KEY_RELEASE"),
gdk_keyval_name(aGdkKeyEvent->keyval),
aGdkKeyEvent->keyval, aGdkKeyEvent->state,
aGdkKeyEvent->hardware_keycode,
GetBoolName(aGdkKeyEvent->is_modifier),
((aKeyEvent.message == NS_KEY_DOWN) ? "NS_KEY_DOWN" :
(aKeyEvent.message == NS_KEY_PRESS) ? "NS_KEY_PRESS" :
"NS_KEY_UP"),
GetBoolName(aKeyEvent.isShift), GetBoolName(aKeyEvent.isControl),
GetBoolName(aKeyEvent.isAlt), GetBoolName(aKeyEvent.isMeta)));
if (aKeyEvent.message == NS_KEY_PRESS) {
keymapWrapper->InitKeypressEvent(aKeyEvent, aGdkKeyEvent);
}
// The transformations above and in gdk for the keyval are not invertible
// so link to the GdkEvent (which will vanish soon after return from the
// event callback) to give plugins access to hardware_keycode and state.
// (An XEvent would be nice but the GdkEvent is good enough.)
aKeyEvent.pluginEvent = (void *)aGdkKeyEvent;
aKeyEvent.time = aGdkKeyEvent->time;
}
/* static */ guint
KeymapWrapper::GetGDKKeyvalWithoutModifier(const GdkEventKey *aGdkKeyEvent)
{
KeymapWrapper* keymapWrapper = GetInstance();
guint state =
(aGdkKeyEvent->state & keymapWrapper->GetModifierMask(NUM_LOCK));
guint keyval;
if (!gdk_keymap_translate_keyboard_state(keymapWrapper->mGdkKeymap,
aGdkKeyEvent->hardware_keycode, GdkModifierType(state),
aGdkKeyEvent->group, &keyval, NULL, NULL, NULL)) {
return 0;
}
return keyval;
}
/* static */ bool
KeymapWrapper::AreModifiersActive(Modifiers aModifiers,
guint aModifierState)
{
NS_ENSURE_TRUE(aModifiers, false);
KeymapWrapper* keymapWrapper = GetInstance();
for (PRUint32 i = 0; i < sizeof(Modifier) * 8 && aModifiers; i++) {
Modifier modifier = static_cast<Modifier>(1 << i);
if (!(aModifiers & modifier)) {
continue;
}
if (!(aModifierState & keymapWrapper->GetModifierMask(modifier))) {
return false;
}
aModifiers &= ~modifier;
}
return true;
}
/* static */ void
KeymapWrapper::InitInputEvent(nsInputEvent& aInputEvent,
guint aModifierState)
{
KeymapWrapper* keymapWrapper = GetInstance();
aInputEvent.isShift =
keymapWrapper->AreModifiersActive(SHIFT, aModifierState);
aInputEvent.isControl =
keymapWrapper->AreModifiersActive(CTRL, aModifierState);
aInputEvent.isAlt =
keymapWrapper->AreModifiersActive(ALT, aModifierState);
// XXX DOM Meta key should be TRUE only on Mac. We need to discuss this
// issue later.
aInputEvent.isMeta = false;
PR_LOG(gKeymapWrapperLog, PR_LOG_DEBUG,
("KeymapWrapper(%p): InitInputEvent, aModifierState=0x%08X "
"aKeyEvent={ isShift=%s, isControl=%s, isAlt=%s, isMeta=%s }",
keymapWrapper, aModifierState,
GetBoolName(aInputEvent.isShift), GetBoolName(aInputEvent.isControl),
GetBoolName(aInputEvent.isAlt), GetBoolName(aInputEvent.isMeta)));
}
/* static */ void
KeymapWrapper::InitKeyEvent(nsKeyEvent& aKeyEvent,
GdkEventKey* aGdkKeyEvent)
{
KeymapWrapper* keymapWrapper = GetInstance();
aKeyEvent.keyCode = ComputeDOMKeyCode(aGdkKeyEvent);
// NOTE: The state of given key event indicates adjacent state of
// modifier keys. E.g., even if the event is Shift key press event,
// the bit for Shift is still false. By the same token, even if the
// event is Shift key release event, the bit for Shift is still true.
// Unfortunately, gdk_keyboard_get_modifiers() returns current modifier
// state. It means if there're some pending modifier key press or
// key release events, the result isn't what we want.
// Temporarily, we should compute the state only when the key event
// is GDK_KEY_PRESS.
// XXX If we could know the modifier keys state at the key release event,
// we should cut out changingMask from modifierState.
guint modifierState = aGdkKeyEvent->state;
if (aGdkKeyEvent->is_modifier && aGdkKeyEvent->type == GDK_KEY_PRESS) {
ModifierKey* modifierKey =
keymapWrapper->GetModifierKey(aGdkKeyEvent->hardware_keycode);
if (modifierKey) {
// If new modifier key is pressed, add the pressed mod mask.
modifierState |= modifierKey->mMask;
}
}
InitInputEvent(aKeyEvent, modifierState);
#ifdef MOZ_PLATFORM_MAEMO
aKeyEvent.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_MOBILE;
#else // #ifdef MOZ_PLATFORM_MAEMO
switch (aGdkKeyEvent->keyval) {
case GDK_Shift_L:
case GDK_Control_L:
case GDK_Alt_L:
case GDK_Super_L:
case GDK_Hyper_L:
case GDK_Meta_L:
aKeyEvent.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_LEFT;
break;
case GDK_Shift_R:
case GDK_Control_R:
case GDK_Alt_R:
case GDK_Super_R:
case GDK_Hyper_R:
case GDK_Meta_R:
aKeyEvent.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_RIGHT;
break;
case GDK_KP_0:
case GDK_KP_1:
case GDK_KP_2:
case GDK_KP_3:
case GDK_KP_4:
case GDK_KP_5:
case GDK_KP_6:
case GDK_KP_7:
case GDK_KP_8:
case GDK_KP_9:
case GDK_KP_Space:
case GDK_KP_Tab:
case GDK_KP_Enter:
case GDK_KP_F1:
case GDK_KP_F2:
case GDK_KP_F3:
case GDK_KP_F4:
case GDK_KP_Home:
case GDK_KP_Left:
case GDK_KP_Up:
case GDK_KP_Right:
case GDK_KP_Down:
case GDK_KP_Prior: // same as GDK_KP_Page_Up
case GDK_KP_Next: // same as GDK_KP_Page_Down
case GDK_KP_End:
case GDK_KP_Begin:
case GDK_KP_Insert:
case GDK_KP_Delete:
case GDK_KP_Equal:
case GDK_KP_Multiply:
case GDK_KP_Add:
case GDK_KP_Separator:
case GDK_KP_Subtract:
case GDK_KP_Decimal:
case GDK_KP_Divide:
aKeyEvent.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_NUMPAD;
break;
default:
aKeyEvent.location = nsIDOMKeyEvent::DOM_KEY_LOCATION_STANDARD;
break;
}
#endif // #ifdef MOZ_PLATFORM_MAEMO #else
PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): InitKeyEvent, modifierState=0x%08X "
"aGdkKeyEvent={ type=%s, keyval=%s(0x%X), state=0x%08X, "
"hardware_keycode=0x%08X, is_modifier=%s } "
"aKeyEvent={ message=%s, isShift=%s, isControl=%s, "
"isAlt=%s, isMeta=%s }",
keymapWrapper, modifierState,
((aGdkKeyEvent->type == GDK_KEY_PRESS) ?
"GDK_KEY_PRESS" : "GDK_KEY_RELEASE"),
gdk_keyval_name(aGdkKeyEvent->keyval),
aGdkKeyEvent->keyval, aGdkKeyEvent->state,
aGdkKeyEvent->hardware_keycode,
GetBoolName(aGdkKeyEvent->is_modifier),
((aKeyEvent.message == NS_KEY_DOWN) ? "NS_KEY_DOWN" :
(aKeyEvent.message == NS_KEY_PRESS) ? "NS_KEY_PRESS" :
"NS_KEY_UP"),
GetBoolName(aKeyEvent.IsShift()), GetBoolName(aKeyEvent.IsControl()),
GetBoolName(aKeyEvent.IsAlt()), GetBoolName(aKeyEvent.IsMeta())));
if (aKeyEvent.message == NS_KEY_PRESS) {
keymapWrapper->InitKeypressEvent(aKeyEvent, aGdkKeyEvent);
}
// The transformations above and in gdk for the keyval are not invertible
// so link to the GdkEvent (which will vanish soon after return from the
// event callback) to give plugins access to hardware_keycode and state.
// (An XEvent would be nice but the GdkEvent is good enough.)
aKeyEvent.pluginEvent = (void *)aGdkKeyEvent;
aKeyEvent.time = aGdkKeyEvent->time;
}
/* static */ PRUint32
KeymapWrapper::ComputeDOMKeyCode(const GdkEventKey* aGdkKeyEvent)
{
// If the keyval indicates it's a modifier key, we should use unshifted
// key's modifier keyval.
guint keyval = aGdkKeyEvent->keyval;
if (GetModifierForGDKKeyval(keyval)) {
// But if the keyval without modifiers isn't a modifier key, we
// shouldn't use it. E.g., Japanese keyboard layout's
// Shift + Eisu-Toggle key is CapsLock. This is an actual rare case,
// Windows uses different keycode for a physical key for different
// shift key state.
guint keyvalWithoutModifier = GetGDKKeyvalWithoutModifier(aGdkKeyEvent);
if (GetModifierForGDKKeyval(keyvalWithoutModifier)) {
keyval = keyvalWithoutModifier;
}
return GetDOMKeyCodeFromKeyPairs(keyval);
}
// If the key isn't printable, let's look at the key pairs.
PRUint32 charCode = GetCharCodeFor(aGdkKeyEvent);
if (!charCode) {
// Always use unshifted keycode for the non-printable key.
// XXX It might be better to decide DOM keycode from all keyvals of
// the hardware keycode. However, I think that it's too excessive.
guint keyvalWithoutModifier = GetGDKKeyvalWithoutModifier(aGdkKeyEvent);
PRUint32 DOMKeyCode = GetDOMKeyCodeFromKeyPairs(keyvalWithoutModifier);
if (!DOMKeyCode) {
// If the unshifted keyval couldn't be mapped to a DOM keycode,
// we should fallback to legacy logic, so, we should recompute with
// the keyval with aGdkKeyEvent.
DOMKeyCode = GetDOMKeyCodeFromKeyPairs(keyval);
}
return DOMKeyCode;
}
// printable numpad keys should be resolved here.
switch (keyval) {
case GDK_KP_Multiply: return NS_VK_MULTIPLY;
case GDK_KP_Add: return NS_VK_ADD;
case GDK_KP_Separator: return NS_VK_SEPARATOR;
case GDK_KP_Subtract: return NS_VK_SUBTRACT;
case GDK_KP_Decimal: return NS_VK_DECIMAL;
case GDK_KP_Divide: return NS_VK_DIVIDE;
case GDK_KP_0: return NS_VK_NUMPAD0;
case GDK_KP_1: return NS_VK_NUMPAD1;
case GDK_KP_2: return NS_VK_NUMPAD2;
case GDK_KP_3: return NS_VK_NUMPAD3;
case GDK_KP_4: return NS_VK_NUMPAD4;
case GDK_KP_5: return NS_VK_NUMPAD5;
case GDK_KP_6: return NS_VK_NUMPAD6;
case GDK_KP_7: return NS_VK_NUMPAD7;
case GDK_KP_8: return NS_VK_NUMPAD8;
case GDK_KP_9: return NS_VK_NUMPAD9;
}
KeymapWrapper* keymapWrapper = GetInstance();
// Ignore all modifier state except NumLock.
guint baseState =
(aGdkKeyEvent->state & keymapWrapper->GetModifierMask(NUM_LOCK));
// Basically, we should use unmodified character for deciding our keyCode.
PRUint32 unmodifiedChar =
keymapWrapper->GetCharCodeFor(aGdkKeyEvent, baseState,
aGdkKeyEvent->group);
if (IsBasicLatinLetterOrNumeral(unmodifiedChar)) {
// If the unmodified character is an ASCII alphabet or an ASCII
// numeric, it's the best hint for deciding our keyCode.
return WidgetUtils::ComputeKeyCodeFromChar(unmodifiedChar);
}
// If the unmodified character is not an ASCII character, that means we
// couldn't find the hint. We should reset it.
if (unmodifiedChar > 0x7F) {
unmodifiedChar = 0;
}
// Retry with shifted keycode.
guint shiftState = (baseState | keymapWrapper->GetModifierMask(SHIFT));
PRUint32 shiftedChar =
keymapWrapper->GetCharCodeFor(aGdkKeyEvent, shiftState,
aGdkKeyEvent->group);
if (IsBasicLatinLetterOrNumeral(shiftedChar)) {
// A shifted character can be an ASCII alphabet on Hebrew keyboard
// layout. And also shifted character can be an ASCII numeric on
// AZERTY keyboad layout. Then, it's a good hint for deciding our
// keyCode.
return WidgetUtils::ComputeKeyCodeFromChar(shiftedChar);
}
// If the shifted unmodified character isn't an ASCII character, we should
// discard it too.
if (shiftedChar > 0x7F) {
shiftedChar = 0;
}
// If current keyboard layout isn't ASCII alphabet inputtable layout,
// look for ASCII alphabet inputtable keyboard layout. If the key
// inputs an ASCII alphabet or an ASCII numeric, we should use it
// for deciding our keyCode.
// Note that it's important not to use alternative keyboard layout for ASCII
// alphabet inputabble keyboard layout because the keycode for the key with
// alternative keyboard layout may conflict with another key on current
// keyboard layout.
if (!keymapWrapper->IsLatinGroup(aGdkKeyEvent->group)) {
gint minGroup = keymapWrapper->GetFirstLatinGroup();
if (minGroup >= 0) {
PRUint32 unmodCharLatin =
keymapWrapper->GetCharCodeFor(aGdkKeyEvent, baseState,
minGroup);
if (IsBasicLatinLetterOrNumeral(unmodCharLatin)) {
// If the unmodified character is an ASCII alphabet or
// an ASCII numeric, we should use it for the keyCode.
return WidgetUtils::ComputeKeyCodeFromChar(unmodCharLatin);
}
PRUint32 shiftedCharLatin =
keymapWrapper->GetCharCodeFor(aGdkKeyEvent, shiftState,
minGroup);
if (IsBasicLatinLetterOrNumeral(shiftedCharLatin)) {
// If the shifted character is an ASCII alphabet or an ASCII
// numeric, we should use it for the keyCode.
return WidgetUtils::ComputeKeyCodeFromChar(shiftedCharLatin);
}
}
}
// If unmodified character is in ASCII range, use it. Otherwise, use
// shifted character.
if (!unmodifiedChar && !shiftedChar) {
return 0;
}
return WidgetUtils::ComputeKeyCodeFromChar(
unmodifiedChar ? unmodifiedChar : shiftedChar);
}
/* static */ void
KeymapWrapper::InitInputEvent(nsInputEvent& aInputEvent,
guint aModifierState)
{
KeymapWrapper* keymapWrapper = GetInstance();
aInputEvent.modifiers = 0;
// DOM Meta key should be TRUE only on Mac. We need to discuss this
// issue later.
if (keymapWrapper->AreModifiersActive(SHIFT, aModifierState)) {
aInputEvent.modifiers |= MODIFIER_SHIFT;
}
if (keymapWrapper->AreModifiersActive(CTRL, aModifierState)) {
aInputEvent.modifiers |= MODIFIER_CONTROL;
}
if (keymapWrapper->AreModifiersActive(ALT, aModifierState)) {
aInputEvent.modifiers |= MODIFIER_ALT;
}
if (keymapWrapper->AreModifiersActive(SUPER, aModifierState) ||
keymapWrapper->AreModifiersActive(HYPER, aModifierState)) {
aInputEvent.modifiers |= MODIFIER_OS;
}
if (keymapWrapper->AreModifiersActive(ALTGR, aModifierState)) {
aInputEvent.modifiers |= MODIFIER_ALTGRAPH;
}
if (keymapWrapper->AreModifiersActive(CAPS_LOCK, aModifierState)) {
aInputEvent.modifiers |= MODIFIER_CAPSLOCK;
}
if (keymapWrapper->AreModifiersActive(NUM_LOCK, aModifierState)) {
aInputEvent.modifiers |= MODIFIER_NUMLOCK;
}
if (keymapWrapper->AreModifiersActive(SCROLL_LOCK, aModifierState)) {
aInputEvent.modifiers |= MODIFIER_SCROLLLOCK;
}
PR_LOG(gKeymapWrapperLog, PR_LOG_DEBUG,
("KeymapWrapper(%p): InitInputEvent, aModifierState=0x%08X, "
"aInputEvent.modifiers=0x%04X (Shift: %s, Control: %s, Alt: %s, "
"OS: %s, AltGr: %s, CapsLock: %s, NumLock: %s, ScrollLock: %s)",
keymapWrapper, aModifierState, aInputEvent.modifiers,
GetBoolName(aInputEvent.modifiers & MODIFIER_SHIFT),
GetBoolName(aInputEvent.modifiers & MODIFIER_CONTROL),
GetBoolName(aInputEvent.modifiers & MODIFIER_ALT),
GetBoolName(aInputEvent.modifiers & MODIFIER_OS),
GetBoolName(aInputEvent.modifiers & MODIFIER_ALTGRAPH),
GetBoolName(aInputEvent.modifiers & MODIFIER_CAPSLOCK),
GetBoolName(aInputEvent.modifiers & MODIFIER_NUMLOCK),
GetBoolName(aInputEvent.modifiers & MODIFIER_SCROLLLOCK)));
switch(aInputEvent.eventStructType) {
case NS_MOUSE_EVENT:
case NS_MOUSE_SCROLL_EVENT:
case NS_DRAG_EVENT:
case NS_SIMPLE_GESTURE_EVENT:
case NS_MOZTOUCH_EVENT:
break;
default:
return;
}
nsMouseEvent_base& mouseEvent = static_cast<nsMouseEvent_base&>(aInputEvent);
mouseEvent.buttons = 0;
if (aModifierState & GDK_BUTTON1_MASK) {
mouseEvent.buttons |= nsMouseEvent::eLeftButtonFlag;
}
if (aModifierState & GDK_BUTTON3_MASK) {
mouseEvent.buttons |= nsMouseEvent::eRightButtonFlag;
}
if (aModifierState & GDK_BUTTON2_MASK) {
mouseEvent.buttons |= nsMouseEvent::eMiddleButtonFlag;
}
PR_LOG(gKeymapWrapperLog, PR_LOG_DEBUG,
("KeymapWrapper(%p): InitInputEvent, aInputEvent has buttons, "
"aInputEvent.buttons=0x%04X (Left: %s, Right: %s, Middle: %s, "
"4th (BACK): %s, 5th (FORWARD): %s)",
keymapWrapper, mouseEvent.buttons,
GetBoolName(mouseEvent.buttons & nsMouseEvent::eLeftButtonFlag),
GetBoolName(mouseEvent.buttons & nsMouseEvent::eRightButtonFlag),
GetBoolName(mouseEvent.buttons & nsMouseEvent::eMiddleButtonFlag),
GetBoolName(mouseEvent.buttons & nsMouseEvent::e4thButtonFlag),
GetBoolName(mouseEvent.buttons & nsMouseEvent::e5thButtonFlag)));
}
