/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* vim:expandtab:shiftwidth=4:tabstop=4: */ /* 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 "prlog.h" #include "nsGtkKeyUtils.h" #include #ifndef GDK_Sleep #define GDK_Sleep 0x1008ff2f #endif #include #ifdef MOZ_X11 #include #endif /* MOZ_X11 */ #include "nsGUIEvent.h" #include "WidgetUtils.h" #include "keysym2ucs.h" #ifdef PR_LOGGING PRLogModuleInfo* gKeymapWrapperLog = nsnull; #endif // PR_LOGGING #include "mozilla/Util.h" namespace mozilla { namespace widget { struct KeyPair { PRUint32 DOMKeyCode; guint GDKKeyval; }; #define IS_ASCII_ALPHABETICAL(key) \ ((('a' <= key) && (key <= 'z')) || (('A' <= key) && (key <= 'Z'))) // // Netscape keycodes are defined in widget/public/nsGUIEvent.h // GTK keycodes are defined in // static const KeyPair kKeyPairs[] = { { NS_VK_CANCEL, GDK_Cancel }, { NS_VK_BACK, GDK_BackSpace }, { NS_VK_TAB, GDK_Tab }, { NS_VK_TAB, GDK_ISO_Left_Tab }, { NS_VK_CLEAR, GDK_Clear }, { NS_VK_RETURN, GDK_Return }, { NS_VK_SHIFT, GDK_Shift_L }, { NS_VK_SHIFT, GDK_Shift_R }, { NS_VK_CONTROL, GDK_Control_L }, { NS_VK_CONTROL, GDK_Control_R }, { NS_VK_ALT, GDK_Alt_L }, { NS_VK_ALT, GDK_Alt_R }, // NS_VK_META is used for Command key of Mac. It's a modifier key for // shortcut keys like Ctrl key on GTK or Windows. So, it's really different // from GTK's META key, we shouldn't use it on GTK. // { NS_VK_META, GDK_Meta_L }, // { NS_VK_META, GDK_Meta_R }, // Assume that Super or Hyper is always mapped to physical Win key. { NS_VK_WIN, GDK_Super_L }, { NS_VK_WIN, GDK_Super_R }, { NS_VK_WIN, GDK_Hyper_L }, { NS_VK_WIN, GDK_Hyper_R }, // GTK's AltGraph key is similar to Mac's Option (Alt) key. However, // unfortunately, browsers on Mac are using NS_VK_ALT for it even though // it's really different from Alt key on Windows. // On the other hand, GTK's AltGrapsh keys are really different from // Alt key. However, there is no AltGrapsh key on Windows. On Windows, // both Ctrl and Alt keys are pressed internally when AltGr key is pressed. // For some languages' users, AltGraph key is important, so, web // applications on such locale may want to know AltGraph key press. // Therefore, we should map AltGr keycode for them only on GTK. { NS_VK_ALTGR, GDK_ISO_Level3_Shift }, { NS_VK_ALTGR, GDK_Mode_switch }, { NS_VK_PAUSE, GDK_Pause }, { NS_VK_CAPS_LOCK, GDK_Caps_Lock }, { NS_VK_KANA, GDK_Kana_Lock }, { NS_VK_KANA, GDK_Kana_Shift }, { NS_VK_HANGUL, GDK_Hangul }, // { NS_VK_JUNJA, GDK_XXX }, // { NS_VK_FINAL, GDK_XXX }, { NS_VK_HANJA, GDK_Hangul_Hanja }, { NS_VK_KANJI, GDK_Kanji }, { NS_VK_ESCAPE, GDK_Escape }, { NS_VK_CONVERT, GDK_Henkan }, { NS_VK_NONCONVERT, GDK_Muhenkan }, // { NS_VK_ACCEPT, GDK_XXX }, { NS_VK_MODECHANGE, GDK_Mode_switch }, { NS_VK_SPACE, GDK_space }, { NS_VK_PAGE_UP, GDK_Page_Up }, { NS_VK_PAGE_DOWN, GDK_Page_Down }, { NS_VK_END, GDK_End }, { NS_VK_HOME, GDK_Home }, { NS_VK_LEFT, GDK_Left }, { NS_VK_UP, GDK_Up }, { NS_VK_RIGHT, GDK_Right }, { NS_VK_DOWN, GDK_Down }, { NS_VK_SELECT, GDK_Select }, { NS_VK_PRINT, GDK_Print }, { NS_VK_EXECUTE, GDK_Execute }, { NS_VK_PRINTSCREEN, GDK_Print }, { NS_VK_INSERT, GDK_Insert }, { NS_VK_DELETE, GDK_Delete }, { NS_VK_HELP, GDK_Help }, // keypad keys { NS_VK_LEFT, GDK_KP_Left }, { NS_VK_RIGHT, GDK_KP_Right }, { NS_VK_UP, GDK_KP_Up }, { NS_VK_DOWN, GDK_KP_Down }, { NS_VK_PAGE_UP, GDK_KP_Page_Up }, // Not sure what these are //{ NS_VK_, GDK_KP_Prior }, //{ NS_VK_, GDK_KP_Next }, { NS_VK_CLEAR, GDK_KP_Begin }, // Num-unlocked 5 { NS_VK_PAGE_DOWN, GDK_KP_Page_Down }, { NS_VK_HOME, GDK_KP_Home }, { NS_VK_END, GDK_KP_End }, { NS_VK_INSERT, GDK_KP_Insert }, { NS_VK_DELETE, GDK_KP_Delete }, { NS_VK_RETURN, GDK_KP_Enter }, { NS_VK_NUM_LOCK, GDK_Num_Lock }, { NS_VK_SCROLL_LOCK,GDK_Scroll_Lock }, // Function keys { NS_VK_F1, GDK_F1 }, { NS_VK_F2, GDK_F2 }, { NS_VK_F3, GDK_F3 }, { NS_VK_F4, GDK_F4 }, { NS_VK_F5, GDK_F5 }, { NS_VK_F6, GDK_F6 }, { NS_VK_F7, GDK_F7 }, { NS_VK_F8, GDK_F8 }, { NS_VK_F9, GDK_F9 }, { NS_VK_F10, GDK_F10 }, { NS_VK_F11, GDK_F11 }, { NS_VK_F12, GDK_F12 }, { NS_VK_F13, GDK_F13 }, { NS_VK_F14, GDK_F14 }, { NS_VK_F15, GDK_F15 }, { NS_VK_F16, GDK_F16 }, { NS_VK_F17, GDK_F17 }, { NS_VK_F18, GDK_F18 }, { NS_VK_F19, GDK_F19 }, { NS_VK_F20, GDK_F20 }, { NS_VK_F21, GDK_F21 }, { NS_VK_F22, GDK_F22 }, { NS_VK_F23, GDK_F23 }, { NS_VK_F24, GDK_F24 }, // context menu key, keysym 0xff67, typically keycode 117 on 105-key (Microsoft) // x86 keyboards, located between right 'Windows' key and right Ctrl key { NS_VK_CONTEXT_MENU, GDK_Menu }, { NS_VK_SLEEP, GDK_Sleep }, }; // map Sun Keyboard special keysyms on to NS_VK keys static const KeyPair kSunKeyPairs[] = { {NS_VK_F11, 0x1005ff10 }, //Sun F11 key generates SunF36(0x1005ff10) keysym {NS_VK_F12, 0x1005ff11 } //Sun F12 key generates SunF37(0x1005ff11) keysym }; #define MOZ_MODIFIER_KEYS "MozKeymapWrapper" KeymapWrapper* KeymapWrapper::sInstance = nsnull; #ifdef PR_LOGGING static const char* GetBoolName(bool aBool) { return aBool ? "TRUE" : "FALSE"; } /* static */ const char* KeymapWrapper::GetModifierName(Modifier aModifier) { switch (aModifier) { case CAPS_LOCK: return "CapsLock"; case NUM_LOCK: return "NumLock"; case SCROLL_LOCK: return "ScrollLock"; case SHIFT: return "Shift"; case CTRL: return "Ctrl"; case ALT: return "Alt"; case SUPER: return "Super"; case HYPER: return "Hyper"; case META: return "Meta"; case ALTGR: return "AltGr"; case NOT_MODIFIER: return "NotModifier"; default: return "InvalidValue"; } } #endif // PR_LOGGING /* static */ KeymapWrapper::Modifier KeymapWrapper::GetModifierForGDKKeyval(guint aGdkKeyval) { switch (aGdkKeyval) { case GDK_Caps_Lock: return CAPS_LOCK; case GDK_Num_Lock: return NUM_LOCK; case GDK_Scroll_Lock: return SCROLL_LOCK; case GDK_Shift_L: case GDK_Shift_R: return SHIFT; case GDK_Control_L: case GDK_Control_R: return CTRL; case GDK_Alt_L: case GDK_Alt_R: return ALT; case GDK_Super_L: case GDK_Super_R: return SUPER; case GDK_Hyper_L: case GDK_Hyper_R: return HYPER; case GDK_Meta_L: case GDK_Meta_R: return META; case GDK_ISO_Level3_Shift: case GDK_Mode_switch: return ALTGR; default: return NOT_MODIFIER; } } guint KeymapWrapper::GetModifierMask(Modifier aModifier) const { switch (aModifier) { case CAPS_LOCK: return GDK_LOCK_MASK; case NUM_LOCK: return mModifierMasks[INDEX_NUM_LOCK]; case SCROLL_LOCK: return mModifierMasks[INDEX_SCROLL_LOCK]; case SHIFT: return GDK_SHIFT_MASK; case CTRL: return GDK_CONTROL_MASK; case ALT: return mModifierMasks[INDEX_ALT]; case SUPER: return mModifierMasks[INDEX_SUPER]; case HYPER: return mModifierMasks[INDEX_HYPER]; case META: return mModifierMasks[INDEX_META]; case ALTGR: return mModifierMasks[INDEX_ALTGR]; default: return 0; } } KeymapWrapper::ModifierKey* KeymapWrapper::GetModifierKey(guint aHardwareKeycode) { for (PRUint32 i = 0; i < mModifierKeys.Length(); i++) { ModifierKey& key = mModifierKeys[i]; if (key.mHardwareKeycode == aHardwareKeycode) { return &key; } } return nsnull; } /* static */ KeymapWrapper* KeymapWrapper::GetInstance() { if (sInstance) { sInstance->Init(); return sInstance; } sInstance = new KeymapWrapper(); return sInstance; } KeymapWrapper::KeymapWrapper() : mInitialized(false), mGdkKeymap(gdk_keymap_get_default()) { #ifdef PR_LOGGING if (!gKeymapWrapperLog) { gKeymapWrapperLog = PR_NewLogModule("KeymapWrapperWidgets"); } PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): Constructor, mGdkKeymap=%p", this, mGdkKeymap)); #endif // PR_LOGGING g_signal_connect(mGdkKeymap, "keys-changed", (GCallback)OnKeysChanged, this); // This is necessary for catching the destroying timing. g_object_weak_ref(G_OBJECT(mGdkKeymap), (GWeakNotify)OnDestroyKeymap, this); Init(); } void KeymapWrapper::Init() { if (mInitialized) { return; } mInitialized = true; PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): Init, mGdkKeymap=%p", this, mGdkKeymap)); mModifierKeys.Clear(); memset(mModifierMasks, 0, sizeof(mModifierMasks)); InitBySystemSettings(); PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): Init, CapsLock=0x%X, NumLock=0x%X, " "ScrollLock=0x%X, AltGr=0x%X, Shift=0x%X, Ctrl=0x%X, Alt=0x%X, " "Meta=0x%X, Super=0x%X, Hyper=0x%X", this, GetModifierMask(CAPS_LOCK), GetModifierMask(NUM_LOCK), GetModifierMask(SCROLL_LOCK), GetModifierMask(ALTGR), GetModifierMask(SHIFT), GetModifierMask(CTRL), GetModifierMask(ALT), GetModifierMask(META), GetModifierMask(SUPER), GetModifierMask(HYPER))); } void KeymapWrapper::InitBySystemSettings() { PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitBySystemSettings, mGdkKeymap=%p", this, mGdkKeymap)); Display* display = gdk_x11_display_get_xdisplay(gdk_display_get_default()); int min_keycode = 0; int max_keycode = 0; XDisplayKeycodes(display, &min_keycode, &max_keycode); int keysyms_per_keycode = 0; KeySym* xkeymap = XGetKeyboardMapping(display, min_keycode, max_keycode - min_keycode + 1, &keysyms_per_keycode); if (!xkeymap) { PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitBySystemSettings, " "Failed due to null xkeymap", this)); return; } XModifierKeymap* xmodmap = XGetModifierMapping(display); if (!xmodmap) { PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitBySystemSettings, " "Failed due to null xmodmap", this)); XFree(xkeymap); return; } PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitBySystemSettings, min_keycode=%d, " "max_keycode=%d, keysyms_per_keycode=%d, max_keypermod=%d", this, min_keycode, max_keycode, keysyms_per_keycode, xmodmap->max_keypermod)); // The modifiermap member of the XModifierKeymap structure contains 8 sets // of max_keypermod KeyCodes, one for each modifier in the order Shift, // Lock, Control, Mod1, Mod2, Mod3, Mod4, and Mod5. // Only nonzero KeyCodes have meaning in each set, and zero KeyCodes are // ignored. // Note that two or more modifiers may use one modifier flag. E.g., // on Ubuntu 10.10, Alt and Meta share the Mod1 in default settings. // And also Super and Hyper share the Mod4. const PRUint32 map_size = 8 * xmodmap->max_keypermod; for (PRUint32 i = 0; i < map_size; i++) { KeyCode keycode = xmodmap->modifiermap[i]; PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitBySystemSettings, " " i=%d, keycode=0x%08X", this, i, keycode)); if (!keycode || keycode < min_keycode || keycode > max_keycode) { continue; } ModifierKey* modifierKey = GetModifierKey(keycode); if (!modifierKey) { modifierKey = mModifierKeys.AppendElement(ModifierKey(keycode)); } const KeySym* syms = xkeymap + (keycode - min_keycode) * keysyms_per_keycode; const PRUint32 bit = i / xmodmap->max_keypermod; modifierKey->mMask |= 1 << bit; for (PRInt32 j = 0; j < keysyms_per_keycode; j++) { Modifier modifier = GetModifierForGDKKeyval(syms[j]); PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitBySystemSettings, " " bit=%d, j=%d, syms[j]=%s(0x%X), modifier=%s", this, bit, j, gdk_keyval_name(syms[j]), syms[j], GetModifierName(modifier))); ModifierIndex index; switch (modifier) { case NUM_LOCK: index = INDEX_NUM_LOCK; break; case SCROLL_LOCK: index = INDEX_SCROLL_LOCK; break; case ALT: index = INDEX_ALT; break; case SUPER: index = INDEX_SUPER; break; case HYPER: index = INDEX_HYPER; break; case META: index = INDEX_META; break; case ALTGR: index = INDEX_ALTGR; break; default: // NOTE: We always use GDK_SHIFT_MASK, GDK_CONTROL_MASK and // GDK_LOCK_MASK for SHIFT, CTRL and CAPS_LOCK. // This is standard manners of GTK application. continue; } mModifierMasks[index] |= 1 << bit; } } XFreeModifiermap(xmodmap); XFree(xkeymap); } KeymapWrapper::~KeymapWrapper() { PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): Destructor", this)); } /* static */ void KeymapWrapper::OnDestroyKeymap(KeymapWrapper* aKeymapWrapper, GdkKeymap *aGdkKeymap) { PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper: OnDestroyKeymap, aGdkKeymap=%p, aKeymapWrapper=%p", aGdkKeymap, aKeymapWrapper)); MOZ_ASSERT(aKeymapWrapper == sInstance, "Desroying unexpected instance"); delete sInstance; sInstance = nsnull; } /* static */ void KeymapWrapper::OnKeysChanged(GdkKeymap *aGdkKeymap, KeymapWrapper* aKeymapWrapper) { PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper: OnKeysChanged, aGdkKeymap=%p, aKeymapWrapper=%p", aGdkKeymap, aKeymapWrapper)); MOZ_ASSERT(sInstance == aKeymapWrapper, "This instance must be the singleton instance"); // We cannot reintialize here becasue we don't have GdkWindow which is using // the GdkKeymap. We'll reinitialize it when next GetInstance() is called. sInstance->mInitialized = false; } /* static */ guint KeymapWrapper::GetCurrentModifierState() { GdkModifierType modifiers; gdk_display_get_pointer(gdk_display_get_default(), NULL, NULL, NULL, &modifiers); return static_cast(modifiers); } /* static */ bool KeymapWrapper::AreModifiersCurrentlyActive(Modifiers aModifiers) { guint modifierState = GetCurrentModifierState(); return AreModifiersActive(aModifiers, modifierState); } /* 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(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.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(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))); } /* 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 */ guint KeymapWrapper::GuessGDKKeyval(PRUint32 aDOMKeyCode) { // First, try to handle alphanumeric input, not listed in nsKeycodes: // most likely, more letters will be getting typed in than things in // the key list, so we will look through these first. if (aDOMKeyCode >= NS_VK_A && aDOMKeyCode <= NS_VK_Z) { // gdk and DOM both use the ASCII codes for these keys. return aDOMKeyCode; } // numbers if (aDOMKeyCode >= NS_VK_0 && aDOMKeyCode <= NS_VK_9) { // gdk and DOM both use the ASCII codes for these keys. return aDOMKeyCode - NS_VK_0 + GDK_0; } switch (aDOMKeyCode) { // keys in numpad case NS_VK_MULTIPLY: return GDK_KP_Multiply; case NS_VK_ADD: return GDK_KP_Add; case NS_VK_SEPARATOR: return GDK_KP_Separator; case NS_VK_SUBTRACT: return GDK_KP_Subtract; case NS_VK_DECIMAL: return GDK_KP_Decimal; case NS_VK_DIVIDE: return GDK_KP_Divide; case NS_VK_NUMPAD0: return GDK_KP_0; case NS_VK_NUMPAD1: return GDK_KP_1; case NS_VK_NUMPAD2: return GDK_KP_2; case NS_VK_NUMPAD3: return GDK_KP_3; case NS_VK_NUMPAD4: return GDK_KP_4; case NS_VK_NUMPAD5: return GDK_KP_5; case NS_VK_NUMPAD6: return GDK_KP_6; case NS_VK_NUMPAD7: return GDK_KP_7; case NS_VK_NUMPAD8: return GDK_KP_8; case NS_VK_NUMPAD9: return GDK_KP_9; // other prinable keys case NS_VK_SPACE: return GDK_space; case NS_VK_COLON: return GDK_comma; case NS_VK_SEMICOLON: return GDK_semicolon; case NS_VK_LESS_THAN: return GDK_less; case NS_VK_EQUALS: return GDK_equal; case NS_VK_GREATER_THAN: return GDK_greater; case NS_VK_QUESTION_MARK: return GDK_question; case NS_VK_AT: return GDK_at; case NS_VK_CIRCUMFLEX: return GDK_asciicircum; case NS_VK_EXCLAMATION: return GDK_exclam; case NS_VK_DOUBLE_QUOTE: return GDK_quotedbl; case NS_VK_HASH: return GDK_numbersign; case NS_VK_DOLLAR: return GDK_dollar; case NS_VK_PERCENT: return GDK_percent; case NS_VK_AMPERSAND: return GDK_ampersand; case NS_VK_UNDERSCORE: return GDK_underscore; case NS_VK_OPEN_PAREN: return GDK_parenleft; case NS_VK_CLOSE_PAREN: return GDK_parenright; case NS_VK_ASTERISK: return GDK_asterisk; case NS_VK_PLUS: return GDK_plus; case NS_VK_PIPE: return GDK_bar; case NS_VK_HYPHEN_MINUS: return GDK_minus; case NS_VK_OPEN_CURLY_BRACKET: return GDK_braceleft; case NS_VK_CLOSE_CURLY_BRACKET: return GDK_braceright; case NS_VK_TILDE: return GDK_asciitilde; case NS_VK_COMMA: return GDK_comma; case NS_VK_PERIOD: return GDK_period; case NS_VK_SLASH: return GDK_slash; case NS_VK_BACK_QUOTE: return GDK_grave; case NS_VK_OPEN_BRACKET: return GDK_bracketleft; case NS_VK_BACK_SLASH: return GDK_backslash; case NS_VK_CLOSE_BRACKET: return GDK_bracketright; case NS_VK_QUOTE: return GDK_apostrophe; } // misc other things for (PRUint32 i = 0; i < ArrayLength(kKeyPairs); ++i) { if (kKeyPairs[i].DOMKeyCode == aDOMKeyCode) { return kKeyPairs[i].GDKKeyval; } } return 0; } /* 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::GetCharCodeFor(const GdkEventKey *aGdkKeyEvent) { // Anything above 0xf000 is considered a non-printable // Exception: directly encoded UCS characters if (aGdkKeyEvent->keyval > 0xf000 && (aGdkKeyEvent->keyval & 0xff000000) != 0x01000000) { // Keypad keys are an exception: they return a value different // from their non-keypad equivalents, but mozilla doesn't distinguish. switch (aGdkKeyEvent->keyval) { case GDK_KP_Space: return ' '; case GDK_KP_Equal: return '='; case GDK_KP_Multiply: return '*'; case GDK_KP_Add: return '+'; case GDK_KP_Separator: return ','; case GDK_KP_Subtract: return '-'; case GDK_KP_Decimal: return '.'; case GDK_KP_Divide: return '/'; case GDK_KP_0: return '0'; case GDK_KP_1: return '1'; case GDK_KP_2: return '2'; case GDK_KP_3: return '3'; case GDK_KP_4: return '4'; case GDK_KP_5: return '5'; case GDK_KP_6: return '6'; case GDK_KP_7: return '7'; case GDK_KP_8: return '8'; case GDK_KP_9: return '9'; default: return 0; // non-printables } } static const long MAX_UNICODE = 0x10FFFF; // we're supposedly printable, let's try to convert long ucs = keysym2ucs(aGdkKeyEvent->keyval); if ((ucs != -1) && (ucs < MAX_UNICODE)) { return ucs; } // I guess we couldn't convert return 0; } PRUint32 KeymapWrapper::GetCharCodeFor(const GdkEventKey *aGdkKeyEvent, guint aModifierState, gint aGroup) { guint keyval; if (!gdk_keymap_translate_keyboard_state(mGdkKeymap, aGdkKeyEvent->hardware_keycode, GdkModifierType(aModifierState), aGroup, &keyval, NULL, NULL, NULL)) { return 0; } GdkEventKey tmpEvent = *aGdkKeyEvent; tmpEvent.state = aModifierState; tmpEvent.keyval = keyval; tmpEvent.group = aGroup; return GetCharCodeFor(&tmpEvent); } gint KeymapWrapper::GetKeyLevel(GdkEventKey *aGdkKeyEvent) { gint level; if (!gdk_keymap_translate_keyboard_state(mGdkKeymap, aGdkKeyEvent->hardware_keycode, GdkModifierType(aGdkKeyEvent->state), aGdkKeyEvent->group, NULL, NULL, &level, NULL)) { return -1; } return level; } gint KeymapWrapper::GetFirstLatinGroup() { GdkKeymapKey *keys; gint count; gint minGroup = -1; if (gdk_keymap_get_entries_for_keyval(mGdkKeymap, GDK_a, &keys, &count)) { // find the minimum number group for latin inputtable layout for (gint i = 0; i < count && minGroup != 0; ++i) { if (keys[i].level != 0 && keys[i].level != 1) { continue; } if (minGroup >= 0 && keys[i].group > minGroup) { continue; } minGroup = keys[i].group; } g_free(keys); } return minGroup; } bool KeymapWrapper::IsLatinGroup(guint8 aGroup) { GdkKeymapKey *keys; gint count; bool result = false; if (gdk_keymap_get_entries_for_keyval(mGdkKeymap, GDK_a, &keys, &count)) { for (gint i = 0; i < count; ++i) { if (keys[i].level != 0 && keys[i].level != 1) { continue; } if (keys[i].group == aGroup) { result = true; break; } } g_free(keys); } return result; } /* static */ bool KeymapWrapper::IsBasicLatinLetterOrNumeral(PRUint32 aCharCode) { return (aCharCode >= 'a' && aCharCode <= 'z') || (aCharCode >= 'A' && aCharCode <= 'Z') || (aCharCode >= '0' && aCharCode <= '9'); } /* 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 */ PRUint32 KeymapWrapper::GetDOMKeyCodeFromKeyPairs(guint aGdkKeyval) { // map Sun Keyboard special keysyms first. for (PRUint32 i = 0; i < ArrayLength(kSunKeyPairs); i++) { if (kSunKeyPairs[i].GDKKeyval == aGdkKeyval) { return kSunKeyPairs[i].DOMKeyCode; } } // misc other things for (PRUint32 i = 0; i < ArrayLength(kKeyPairs); i++) { if (kKeyPairs[i].GDKKeyval == aGdkKeyval) { return kKeyPairs[i].DOMKeyCode; } } return 0; } void KeymapWrapper::InitKeypressEvent(nsKeyEvent& aKeyEvent, GdkEventKey* aGdkKeyEvent) { NS_ENSURE_TRUE(aKeyEvent.message == NS_KEY_PRESS, ); aKeyEvent.charCode = GetCharCodeFor(aGdkKeyEvent); if (!aKeyEvent.charCode) { PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitKeypressEvent, " "keyCode=0x%02X, charCode=0x%08X", this, aKeyEvent.keyCode, aKeyEvent.charCode)); return; } // If the event causes inputting a character, keyCode must be zero. aKeyEvent.keyCode = 0; // If Ctrl or Alt or Meta is pressed, we need to append the key details // for handling shortcut key. Otherwise, we have no additional work. if (!aKeyEvent.IsControl() && !aKeyEvent.IsAlt() && !aKeyEvent.IsMeta()) { PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitKeypressEvent, " "keyCode=0x%02X, charCode=0x%08X", this, aKeyEvent.keyCode, aKeyEvent.charCode)); return; } gint level = GetKeyLevel(aGdkKeyEvent); if (level != 0 && level != 1) { PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitKeypressEvent, " "keyCode=0x%02X, charCode=0x%08X, level=%d", this, aKeyEvent.keyCode, aKeyEvent.charCode, level)); return; } guint baseState = aGdkKeyEvent->state & ~(GetModifierMask(SHIFT) | GetModifierMask(CTRL) | GetModifierMask(ALT) | GetModifierMask(META) | GetModifierMask(SUPER) | GetModifierMask(HYPER)); // We shold send both shifted char and unshifted char, all keyboard layout // users can use all keys. Don't change event.charCode. On some keyboard // layouts, Ctrl/Alt/Meta keys are used for inputting some characters. nsAlternativeCharCode altCharCodes(0, 0); // unshifted charcode of current keyboard layout. altCharCodes.mUnshiftedCharCode = GetCharCodeFor(aGdkKeyEvent, baseState, aGdkKeyEvent->group); bool isLatin = (altCharCodes.mUnshiftedCharCode <= 0xFF); // shifted charcode of current keyboard layout. altCharCodes.mShiftedCharCode = GetCharCodeFor(aGdkKeyEvent, baseState | GetModifierMask(SHIFT), aGdkKeyEvent->group); isLatin = isLatin && (altCharCodes.mShiftedCharCode <= 0xFF); if (altCharCodes.mUnshiftedCharCode || altCharCodes.mShiftedCharCode) { aKeyEvent.alternativeCharCodes.AppendElement(altCharCodes); } bool needLatinKeyCodes = !isLatin; if (!needLatinKeyCodes) { needLatinKeyCodes = (IS_ASCII_ALPHABETICAL(altCharCodes.mUnshiftedCharCode) != IS_ASCII_ALPHABETICAL(altCharCodes.mShiftedCharCode)); } // If current keyboard layout can input Latin characters, we don't need // more information. if (!needLatinKeyCodes) { PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitKeypressEvent, keyCode=0x%02X, " "charCode=0x%08X, level=%d, altCharCodes={ " "mUnshiftedCharCode=0x%08X, mShiftedCharCode=0x%08X }", this, aKeyEvent.keyCode, aKeyEvent.charCode, level, altCharCodes.mUnshiftedCharCode, altCharCodes.mShiftedCharCode)); return; } // Next, find Latin inputtable keyboard layout. gint minGroup = GetFirstLatinGroup(); if (minGroup < 0) { PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitKeypressEvent, " "Latin keyboard layout isn't found: " "keyCode=0x%02X, charCode=0x%08X, level=%d, " "altCharCodes={ mUnshiftedCharCode=0x%08X, " "mShiftedCharCode=0x%08X }", this, aKeyEvent.keyCode, aKeyEvent.charCode, level, altCharCodes.mUnshiftedCharCode, altCharCodes.mShiftedCharCode)); return; } nsAlternativeCharCode altLatinCharCodes(0, 0); PRUint32 unmodifiedCh = aKeyEvent.IsShift() ? altCharCodes.mShiftedCharCode : altCharCodes.mUnshiftedCharCode; // unshifted charcode of found keyboard layout. PRUint32 ch = GetCharCodeFor(aGdkKeyEvent, baseState, minGroup); altLatinCharCodes.mUnshiftedCharCode = IsBasicLatinLetterOrNumeral(ch) ? ch : 0; // shifted charcode of found keyboard layout. ch = GetCharCodeFor(aGdkKeyEvent, baseState | GetModifierMask(SHIFT), minGroup); altLatinCharCodes.mShiftedCharCode = IsBasicLatinLetterOrNumeral(ch) ? ch : 0; if (altLatinCharCodes.mUnshiftedCharCode || altLatinCharCodes.mShiftedCharCode) { aKeyEvent.alternativeCharCodes.AppendElement(altLatinCharCodes); } // If the charCode is not Latin, and the level is 0 or 1, we should // replace the charCode to Latin char if Alt and Meta keys are not // pressed. (Alt should be sent the localized char for accesskey // like handling of Web Applications.) ch = aKeyEvent.IsShift() ? altLatinCharCodes.mShiftedCharCode : altLatinCharCodes.mUnshiftedCharCode; if (ch && !(aKeyEvent.IsAlt() || aKeyEvent.IsMeta()) && aKeyEvent.charCode == unmodifiedCh) { aKeyEvent.charCode = ch; } PR_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS, ("KeymapWrapper(%p): InitKeypressEvent, " "keyCode=0x%02X, charCode=0x%08X, level=%d, minGroup=%d, " "altCharCodes={ mUnshiftedCharCode=0x%08X, " "mShiftedCharCode=0x%08X } " "altLatinCharCodes={ mUnshiftedCharCode=0x%08X, " "mShiftedCharCode=0x%08X }", this, aKeyEvent.keyCode, aKeyEvent.charCode, level, minGroup, altCharCodes.mUnshiftedCharCode, altCharCodes.mShiftedCharCode, altLatinCharCodes.mUnshiftedCharCode, altLatinCharCodes.mShiftedCharCode)); } /* static */ bool KeymapWrapper::IsKeyPressEventNecessary(GdkEventKey* aGdkKeyEvent) { // If this is a modifier key event, we shouldn't send keypress event. switch (ComputeDOMKeyCode(aGdkKeyEvent)) { case NS_VK_SHIFT: case NS_VK_CONTROL: case NS_VK_ALT: case NS_VK_ALTGR: case NS_VK_WIN: case NS_VK_CAPS_LOCK: case NS_VK_NUM_LOCK: case NS_VK_SCROLL_LOCK: return false; default: return true; } } } // namespace widget } // namespace mozilla