Files
tubestation/widget/gtk/nsGtkKeyUtils.cpp
Carsten "Tomcat" Book 89becff57d Backed out 14 changesets (bug 1165515) for linux x64 e10s m2 test failures
Backed out changeset d68dcf2ef372 (bug 1165515)
Backed out changeset 7c3b45a47811 (bug 1165515)
Backed out changeset b668b617bef2 (bug 1165515)
Backed out changeset d0916e1283a2 (bug 1165515)
Backed out changeset ac4dc7489942 (bug 1165515)
Backed out changeset e9632ce8bc65 (bug 1165515)
Backed out changeset c16d215cc7e4 (bug 1165515)
Backed out changeset e4d474f3c51a (bug 1165515)
Backed out changeset d87680bf9f7c (bug 1165515)
Backed out changeset b3c0a45ba99e (bug 1165515)
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Backed out changeset 50970d668ca1 (bug 1165515)
Backed out changeset ffa4eb6d24b9 (bug 1165515)
Backed out changeset 5fcf1203cc1d (bug 1165515)
2015-06-02 13:05:56 +02:00

1484 lines
56 KiB
C++

/* -*- 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 "mozilla/Logging.h"
#include "nsGtkKeyUtils.h"
#include <gdk/gdkkeysyms.h>
#include <algorithm>
#include <gdk/gdk.h>
#include <gdk/gdkx.h>
#if (MOZ_WIDGET_GTK == 3)
#include <gdk/gdkkeysyms-compat.h>
#endif
#include <X11/XKBlib.h>
#include "WidgetUtils.h"
#include "keysym2ucs.h"
#include "nsIBidiKeyboard.h"
#include "nsServiceManagerUtils.h"
PRLogModuleInfo* gKeymapWrapperLog = nullptr;
#include "mozilla/ArrayUtils.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/TextEvents.h"
namespace mozilla {
namespace widget {
#define IS_ASCII_ALPHABETICAL(key) \
((('a' <= key) && (key <= 'z')) || (('A' <= key) && (key <= 'Z')))
#define MOZ_MODIFIER_KEYS "MozKeymapWrapper"
KeymapWrapper* KeymapWrapper::sInstance = nullptr;
guint KeymapWrapper::sLastRepeatableHardwareKeyCode = 0;
KeymapWrapper::RepeatState KeymapWrapper::sRepeatState =
KeymapWrapper::NOT_PRESSED;
nsIBidiKeyboard* sBidiKeyboard = nullptr;
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 LEVEL3: return "Level3";
case LEVEL5: return "Level5";
case NOT_MODIFIER: return "NotModifier";
default: return "InvalidValue";
}
}
/* 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_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 LEVEL3;
case GDK_ISO_Level5_Shift: return LEVEL5;
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 LEVEL3:
return mModifierMasks[INDEX_LEVEL3];
case LEVEL5:
return mModifierMasks[INDEX_LEVEL5];
default:
return 0;
}
}
KeymapWrapper::ModifierKey*
KeymapWrapper::GetModifierKey(guint aHardwareKeycode)
{
for (uint32_t i = 0; i < mModifierKeys.Length(); i++) {
ModifierKey& key = mModifierKeys[i];
if (key.mHardwareKeycode == aHardwareKeycode) {
return &key;
}
}
return nullptr;
}
/* static */ KeymapWrapper*
KeymapWrapper::GetInstance()
{
if (sInstance) {
sInstance->Init();
return sInstance;
}
sInstance = new KeymapWrapper();
return sInstance;
}
KeymapWrapper::KeymapWrapper() :
mInitialized(false), mGdkKeymap(gdk_keymap_get_default()),
mXKBBaseEventCode(0)
{
if (!gKeymapWrapperLog) {
gKeymapWrapperLog = PR_NewLogModule("KeymapWrapperWidgets");
}
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): Constructor, mGdkKeymap=%p",
this, mGdkKeymap));
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);
if (GDK_IS_X11_DISPLAY(gdk_display_get_default()))
InitXKBExtension();
Init();
}
void
KeymapWrapper::Init()
{
if (mInitialized) {
return;
}
mInitialized = true;
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): Init, mGdkKeymap=%p",
this, mGdkKeymap));
mModifierKeys.Clear();
memset(mModifierMasks, 0, sizeof(mModifierMasks));
if (GDK_IS_X11_DISPLAY(gdk_display_get_default()))
InitBySystemSettings();
gdk_window_add_filter(nullptr, FilterEvents, this);
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): Init, CapsLock=0x%X, NumLock=0x%X, "
"ScrollLock=0x%X, Level3=0x%X, Level5=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(LEVEL3),
GetModifierMask(LEVEL5),
GetModifierMask(SHIFT), GetModifierMask(CTRL),
GetModifierMask(ALT), GetModifierMask(META),
GetModifierMask(SUPER), GetModifierMask(HYPER)));
}
void
KeymapWrapper::InitXKBExtension()
{
PodZero(&mKeyboardState);
int xkbMajorVer = XkbMajorVersion;
int xkbMinorVer = XkbMinorVersion;
if (!XkbLibraryVersion(&xkbMajorVer, &xkbMinorVer)) {
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): InitXKBExtension failed due to failure of "
"XkbLibraryVersion()", this));
return;
}
Display* display =
gdk_x11_display_get_xdisplay(gdk_display_get_default());
// XkbLibraryVersion() set xkbMajorVer and xkbMinorVer to that of the
// library, which may be newer than what is required of the server in
// XkbQueryExtension(), so these variables should be reset to
// XkbMajorVersion and XkbMinorVersion before the XkbQueryExtension call.
xkbMajorVer = XkbMajorVersion;
xkbMinorVer = XkbMinorVersion;
int opcode, baseErrorCode;
if (!XkbQueryExtension(display, &opcode, &mXKBBaseEventCode, &baseErrorCode,
&xkbMajorVer, &xkbMinorVer)) {
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): InitXKBExtension failed due to failure of "
"XkbQueryExtension(), display=0x%p", this, display));
return;
}
if (!XkbSelectEventDetails(display, XkbUseCoreKbd, XkbStateNotify,
XkbModifierStateMask, XkbModifierStateMask)) {
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): InitXKBExtension failed due to failure of "
"XkbSelectEventDetails() for XModifierStateMask, display=0x%p",
this, display));
return;
}
if (!XkbSelectEventDetails(display, XkbUseCoreKbd, XkbControlsNotify,
XkbPerKeyRepeatMask, XkbPerKeyRepeatMask)) {
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): InitXKBExtension failed due to failure of "
"XkbSelectEventDetails() for XkbControlsNotify, display=0x%p",
this, display));
return;
}
if (!XGetKeyboardControl(display, &mKeyboardState)) {
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): InitXKBExtension failed due to failure of "
"XGetKeyboardControl(), display=0x%p",
this, display));
return;
}
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): InitXKBExtension, Succeeded", this));
}
void
KeymapWrapper::InitBySystemSettings()
{
MOZ_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) {
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): InitBySystemSettings, "
"Failed due to null xkeymap", this));
return;
}
XModifierKeymap* xmodmap = XGetModifierMapping(display);
if (!xmodmap) {
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): InitBySystemSettings, "
"Failed due to null xmodmap", this));
XFree(xkeymap);
return;
}
MOZ_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. In such cases, we need to
// decide which modifier flag means one of DOM modifiers.
// mod[0] is Modifier introduced by Mod1.
Modifier mod[5];
int32_t foundLevel[5];
for (uint32_t i = 0; i < ArrayLength(mod); i++) {
mod[i] = NOT_MODIFIER;
foundLevel[i] = INT32_MAX;
}
const uint32_t map_size = 8 * xmodmap->max_keypermod;
for (uint32_t i = 0; i < map_size; i++) {
KeyCode keycode = xmodmap->modifiermap[i];
MOZ_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 uint32_t bit = i / xmodmap->max_keypermod;
modifierKey->mMask |= 1 << bit;
// We need to know the meaning of Mod1, Mod2, Mod3, Mod4 and Mod5.
// Let's skip if current map is for others.
if (bit < 3) {
continue;
}
const int32_t modIndex = bit - 3;
for (int32_t j = 0; j < keysyms_per_keycode; j++) {
Modifier modifier = GetModifierForGDKKeyval(syms[j]);
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): InitBySystemSettings, "
" Mod%d, j=%d, syms[j]=%s(0x%X), modifier=%s",
this, modIndex + 1, j, gdk_keyval_name(syms[j]), syms[j],
GetModifierName(modifier)));
switch (modifier) {
case NOT_MODIFIER:
// Don't overwrite the stored information with
// NOT_MODIFIER.
break;
case CAPS_LOCK:
case SHIFT:
case CTRL:
// Ignore the modifiers defined in GDK spec. They shouldn't
// be mapped to Mod1-5 because they must not work on native
// GTK applications.
break;
default:
// If new modifier is found in higher level than stored
// value, we don't need to overwrite it.
if (j > foundLevel[modIndex]) {
break;
}
// If new modifier is more important than stored value,
// we should overwrite it with new modifier.
if (j == foundLevel[modIndex]) {
mod[modIndex] = std::min(modifier, mod[modIndex]);
break;
}
foundLevel[modIndex] = j;
mod[modIndex] = modifier;
break;
}
}
}
for (uint32_t i = 0; i < COUNT_OF_MODIFIER_INDEX; i++) {
Modifier modifier;
switch (i) {
case INDEX_NUM_LOCK:
modifier = NUM_LOCK;
break;
case INDEX_SCROLL_LOCK:
modifier = SCROLL_LOCK;
break;
case INDEX_ALT:
modifier = ALT;
break;
case INDEX_META:
modifier = META;
break;
case INDEX_SUPER:
modifier = SUPER;
break;
case INDEX_HYPER:
modifier = HYPER;
break;
case INDEX_LEVEL3:
modifier = LEVEL3;
break;
case INDEX_LEVEL5:
modifier = LEVEL5;
break;
default:
MOZ_CRASH("All indexes must be handled here");
}
for (uint32_t j = 0; j < ArrayLength(mod); j++) {
if (modifier == mod[j]) {
mModifierMasks[i] |= 1 << (j + 3);
}
}
}
XFreeModifiermap(xmodmap);
XFree(xkeymap);
}
KeymapWrapper::~KeymapWrapper()
{
gdk_window_remove_filter(nullptr, FilterEvents, this);
NS_IF_RELEASE(sBidiKeyboard);
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): Destructor", this));
}
/* static */ GdkFilterReturn
KeymapWrapper::FilterEvents(GdkXEvent* aXEvent,
GdkEvent* aGdkEvent,
gpointer aData)
{
XEvent* xEvent = static_cast<XEvent*>(aXEvent);
switch (xEvent->type) {
case KeyPress: {
// If the key doesn't support auto repeat, ignore the event because
// even if such key (e.g., Shift) is pressed during auto repeat of
// anoter key, it doesn't stop the auto repeat.
KeymapWrapper* self = static_cast<KeymapWrapper*>(aData);
if (!self->IsAutoRepeatableKey(xEvent->xkey.keycode)) {
break;
}
if (sRepeatState == NOT_PRESSED) {
sRepeatState = FIRST_PRESS;
} else if (sLastRepeatableHardwareKeyCode == xEvent->xkey.keycode) {
sRepeatState = REPEATING;
} else {
// If a different key is pressed while another key is pressed,
// auto repeat system repeats only the last pressed key.
// So, setting new keycode and setting repeat state as first key
// press should work fine.
sRepeatState = FIRST_PRESS;
}
sLastRepeatableHardwareKeyCode = xEvent->xkey.keycode;
break;
}
case KeyRelease: {
if (sLastRepeatableHardwareKeyCode != xEvent->xkey.keycode) {
// This case means the key release event is caused by
// a non-repeatable key such as Shift or a repeatable key that
// was pressed before sLastRepeatableHardwareKeyCode was
// pressed.
break;
}
sRepeatState = NOT_PRESSED;
break;
}
case FocusOut: {
// At moving focus, we should reset keyboard repeat state.
// Strictly, this causes incorrect behavior. However, this
// correctness must be enough for web applications.
sRepeatState = NOT_PRESSED;
break;
}
default: {
KeymapWrapper* self = static_cast<KeymapWrapper*>(aData);
if (xEvent->type != self->mXKBBaseEventCode) {
break;
}
XkbEvent* xkbEvent = (XkbEvent*)xEvent;
if (xkbEvent->any.xkb_type != XkbControlsNotify ||
!(xkbEvent->ctrls.changed_ctrls & XkbPerKeyRepeatMask)) {
break;
}
if (!XGetKeyboardControl(xkbEvent->any.display,
&self->mKeyboardState)) {
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper(%p): FilterEvents failed due to failure "
"of XGetKeyboardControl(), display=0x%p",
self, xkbEvent->any.display));
}
break;
}
}
return GDK_FILTER_CONTINUE;
}
/* static */ void
KeymapWrapper::OnDestroyKeymap(KeymapWrapper* aKeymapWrapper,
GdkKeymap *aGdkKeymap)
{
MOZ_LOG(gKeymapWrapperLog, PR_LOG_ALWAYS,
("KeymapWrapper: OnDestroyKeymap, aGdkKeymap=%p, aKeymapWrapper=%p",
aGdkKeymap, aKeymapWrapper));
MOZ_ASSERT(aKeymapWrapper == sInstance,
"Desroying unexpected instance");
delete sInstance;
sInstance = nullptr;
}
/* static */ void
KeymapWrapper::OnKeysChanged(GdkKeymap *aGdkKeymap,
KeymapWrapper* aKeymapWrapper)
{
MOZ_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;
// Reset the bidi keyboard settings for the new GdkKeymap
if (!sBidiKeyboard) {
CallGetService("@mozilla.org/widget/bidikeyboard;1", &sBidiKeyboard);
}
if (sBidiKeyboard) {
sBidiKeyboard->Reset();
}
}
/* static */ guint
KeymapWrapper::GetCurrentModifierState()
{
GdkModifierType modifiers;
gdk_display_get_pointer(gdk_display_get_default(),
nullptr, nullptr, nullptr, &modifiers);
return static_cast<guint>(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 (uint32_t 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(WidgetInputEvent& 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(META, aModifierState)) {
aInputEvent.modifiers |= MODIFIER_META;
}
if (keymapWrapper->AreModifiersActive(SUPER, aModifierState) ||
keymapWrapper->AreModifiersActive(HYPER, aModifierState)) {
aInputEvent.modifiers |= MODIFIER_OS;
}
if (keymapWrapper->AreModifiersActive(LEVEL3, aModifierState) ||
keymapWrapper->AreModifiersActive(LEVEL5, 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;
}
MOZ_LOG(gKeymapWrapperLog, PR_LOG_DEBUG,
("KeymapWrapper(%p): InitInputEvent, aModifierState=0x%08X, "
"aInputEvent.modifiers=0x%04X (Shift: %s, Control: %s, Alt: %s, "
"Meta: %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_META),
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.mClass) {
case eMouseEventClass:
case eMouseScrollEventClass:
case eWheelEventClass:
case eDragEventClass:
case eSimpleGestureEventClass:
break;
default:
return;
}
WidgetMouseEventBase& mouseEvent = *aInputEvent.AsMouseEventBase();
mouseEvent.buttons = 0;
if (aModifierState & GDK_BUTTON1_MASK) {
mouseEvent.buttons |= WidgetMouseEvent::eLeftButtonFlag;
}
if (aModifierState & GDK_BUTTON3_MASK) {
mouseEvent.buttons |= WidgetMouseEvent::eRightButtonFlag;
}
if (aModifierState & GDK_BUTTON2_MASK) {
mouseEvent.buttons |= WidgetMouseEvent::eMiddleButtonFlag;
}
MOZ_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 & WidgetMouseEvent::eLeftButtonFlag),
GetBoolName(mouseEvent.buttons & WidgetMouseEvent::eRightButtonFlag),
GetBoolName(mouseEvent.buttons & WidgetMouseEvent::eMiddleButtonFlag),
GetBoolName(mouseEvent.buttons & WidgetMouseEvent::e4thButtonFlag),
GetBoolName(mouseEvent.buttons & WidgetMouseEvent::e5thButtonFlag)));
}
/* static */ uint32_t
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;
}
// Note that the modifier keycode and activating or deactivating
// modifier flag may be mismatched, but it's okay. If a DOM key
// event handler is testing a keydown event, it's more likely being
// used to test which key is being pressed than to test which
// modifier will become active. So, if we computed DOM keycode
// from modifier flag which were changing by the physical key, then
// there would be no other way for the user to generate the original
// keycode.
uint32_t DOMKeyCode = GetDOMKeyCodeFromKeyPairs(keyval);
NS_ASSERTION(DOMKeyCode, "All modifier keys must have a DOM keycode");
return DOMKeyCode;
}
// If the key isn't printable, let's look at the key pairs.
uint32_t 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);
uint32_t 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.
uint32_t 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));
uint32_t 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) {
uint32_t 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);
}
uint32_t 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);
}
KeyNameIndex
KeymapWrapper::ComputeDOMKeyNameIndex(const GdkEventKey* aGdkKeyEvent)
{
switch (aGdkKeyEvent->keyval) {
#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:
break;
}
return KEY_NAME_INDEX_Unidentified;
}
/* static */ CodeNameIndex
KeymapWrapper::ComputeDOMCodeNameIndex(const GdkEventKey* aGdkKeyEvent)
{
switch (aGdkKeyEvent->hardware_keycode) {
#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:
break;
}
return CODE_NAME_INDEX_UNKNOWN;
}
/* static */ void
KeymapWrapper::InitKeyEvent(WidgetKeyboardEvent& aKeyEvent,
GdkEventKey* aGdkKeyEvent)
{
KeymapWrapper* keymapWrapper = GetInstance();
aKeyEvent.mCodeNameIndex = ComputeDOMCodeNameIndex(aGdkKeyEvent);
MOZ_ASSERT(aKeyEvent.mCodeNameIndex != CODE_NAME_INDEX_USE_STRING);
aKeyEvent.mKeyNameIndex =
keymapWrapper->ComputeDOMKeyNameIndex(aGdkKeyEvent);
if (aKeyEvent.mKeyNameIndex == KEY_NAME_INDEX_Unidentified) {
uint32_t charCode = GetCharCodeFor(aGdkKeyEvent);
if (!charCode) {
charCode = keymapWrapper->GetUnmodifiedCharCodeFor(aGdkKeyEvent);
}
if (charCode) {
aKeyEvent.mKeyNameIndex = KEY_NAME_INDEX_USE_STRING;
MOZ_ASSERT(aKeyEvent.mKeyValue.IsEmpty(),
"Uninitialized mKeyValue must be empty");
AppendUCS4ToUTF16(charCode, aKeyEvent.mKeyValue);
}
}
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.
guint modifierState = aGdkKeyEvent->state;
GdkDisplay* gdkDisplay = gdk_display_get_default();
if (aGdkKeyEvent->is_modifier && GDK_IS_X11_DISPLAY(gdkDisplay)) {
Display* display =
gdk_x11_display_get_xdisplay(gdkDisplay);
if (XEventsQueued(display, QueuedAfterReading)) {
XEvent nextEvent;
XPeekEvent(display, &nextEvent);
if (nextEvent.type == keymapWrapper->mXKBBaseEventCode) {
XkbEvent* XKBEvent = (XkbEvent*)&nextEvent;
if (XKBEvent->any.xkb_type == XkbStateNotify) {
XkbStateNotifyEvent* stateNotifyEvent =
(XkbStateNotifyEvent*)XKBEvent;
modifierState &= ~0xFF;
modifierState |= stateNotifyEvent->lookup_mods;
}
}
}
}
InitInputEvent(aKeyEvent, modifierState);
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;
}
MOZ_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.mPluginEvent.Copy(*aGdkKeyEvent);
aKeyEvent.time = aGdkKeyEvent->time;
aKeyEvent.mNativeKeyEvent = static_cast<void*>(aGdkKeyEvent);
aKeyEvent.mIsRepeat = sRepeatState == REPEATING &&
aGdkKeyEvent->hardware_keycode == sLastRepeatableHardwareKeyCode;
}
/* static */ uint32_t
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;
}
uint32_t
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, nullptr, nullptr, nullptr)) {
return 0;
}
GdkEventKey tmpEvent = *aGdkKeyEvent;
tmpEvent.state = aModifierState;
tmpEvent.keyval = keyval;
tmpEvent.group = aGroup;
return GetCharCodeFor(&tmpEvent);
}
uint32_t
KeymapWrapper::GetUnmodifiedCharCodeFor(const GdkEventKey* aGdkKeyEvent)
{
guint state = aGdkKeyEvent->state &
(GetModifierMask(SHIFT) | GetModifierMask(CAPS_LOCK) |
GetModifierMask(NUM_LOCK) | GetModifierMask(SCROLL_LOCK) |
GetModifierMask(LEVEL3) | GetModifierMask(LEVEL5));
uint32_t charCode = GetCharCodeFor(aGdkKeyEvent, GdkModifierType(state),
aGdkKeyEvent->group);
if (charCode) {
return charCode;
}
// If no character is mapped to the key when Level3 Shift or Level5 Shift
// is active, let's return a character which is inputted by the key without
// Level3 nor Level5 Shift.
guint stateWithoutAltGraph =
state & ~(GetModifierMask(LEVEL3) | GetModifierMask(LEVEL5));
if (state == stateWithoutAltGraph) {
return 0;
}
return GetCharCodeFor(aGdkKeyEvent, GdkModifierType(stateWithoutAltGraph),
aGdkKeyEvent->group);
}
gint
KeymapWrapper::GetKeyLevel(GdkEventKey *aGdkKeyEvent)
{
gint level;
if (!gdk_keymap_translate_keyboard_state(mGdkKeymap,
aGdkKeyEvent->hardware_keycode,
GdkModifierType(aGdkKeyEvent->state),
aGdkKeyEvent->group, nullptr, nullptr, &level, nullptr)) {
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;
}
bool
KeymapWrapper::IsAutoRepeatableKey(guint aHardwareKeyCode)
{
uint8_t indexOfArray = aHardwareKeyCode / 8;
MOZ_ASSERT(indexOfArray < ArrayLength(mKeyboardState.auto_repeats),
"invalid index");
char bitMask = 1 << (aHardwareKeyCode % 8);
return (mKeyboardState.auto_repeats[indexOfArray] & bitMask) != 0;
}
/* static */ bool
KeymapWrapper::IsBasicLatinLetterOrNumeral(uint32_t 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, nullptr, nullptr, nullptr)) {
return 0;
}
return keyval;
}
/* static */ uint32_t
KeymapWrapper::GetDOMKeyCodeFromKeyPairs(guint aGdkKeyval)
{
switch (aGdkKeyval) {
case GDK_Cancel: return NS_VK_CANCEL;
case GDK_BackSpace: return NS_VK_BACK;
case GDK_Tab:
case GDK_ISO_Left_Tab: return NS_VK_TAB;
case GDK_Clear: return NS_VK_CLEAR;
case GDK_Return: return NS_VK_RETURN;
case GDK_Shift_L:
case GDK_Shift_R:
case GDK_Shift_Lock: return NS_VK_SHIFT;
case GDK_Control_L:
case GDK_Control_R: return NS_VK_CONTROL;
case GDK_Alt_L:
case GDK_Alt_R: return NS_VK_ALT;
case GDK_Meta_L:
case GDK_Meta_R: return NS_VK_META;
// Assume that Super or Hyper is always mapped to physical Win key.
case GDK_Super_L:
case GDK_Super_R:
case GDK_Hyper_L:
case GDK_Hyper_R: return NS_VK_WIN;
// 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.
case GDK_ISO_Level3_Shift:
case GDK_ISO_Level5_Shift:
// We assume that Mode_switch is always used for level3 shift.
case GDK_Mode_switch: return NS_VK_ALTGR;
case GDK_Pause: return NS_VK_PAUSE;
case GDK_Caps_Lock: return NS_VK_CAPS_LOCK;
case GDK_Kana_Lock:
case GDK_Kana_Shift: return NS_VK_KANA;
case GDK_Hangul: return NS_VK_HANGUL;
// case GDK_XXX: return NS_VK_JUNJA;
// case GDK_XXX: return NS_VK_FINAL;
case GDK_Hangul_Hanja: return NS_VK_HANJA;
case GDK_Kanji: return NS_VK_KANJI;
case GDK_Escape: return NS_VK_ESCAPE;
case GDK_Henkan: return NS_VK_CONVERT;
case GDK_Muhenkan: return NS_VK_NONCONVERT;
// case GDK_XXX: return NS_VK_ACCEPT;
// case GDK_XXX: return NS_VK_MODECHANGE;
case GDK_Page_Up: return NS_VK_PAGE_UP;
case GDK_Page_Down: return NS_VK_PAGE_DOWN;
case GDK_End: return NS_VK_END;
case GDK_Home: return NS_VK_HOME;
case GDK_Left: return NS_VK_LEFT;
case GDK_Up: return NS_VK_UP;
case GDK_Right: return NS_VK_RIGHT;
case GDK_Down: return NS_VK_DOWN;
case GDK_Select: return NS_VK_SELECT;
case GDK_Print: return NS_VK_PRINT;
case GDK_Execute: return NS_VK_EXECUTE;
case GDK_Insert: return NS_VK_INSERT;
case GDK_Delete: return NS_VK_DELETE;
case GDK_Help: return NS_VK_HELP;
// keypad keys
case GDK_KP_Left: return NS_VK_LEFT;
case GDK_KP_Right: return NS_VK_RIGHT;
case GDK_KP_Up: return NS_VK_UP;
case GDK_KP_Down: return NS_VK_DOWN;
case GDK_KP_Page_Up: return NS_VK_PAGE_UP;
// Not sure what these are
// case GDK_KP_Prior: return NS_VK_;
// case GDK_KP_Next: return NS_VK_;
case GDK_KP_Begin: return NS_VK_CLEAR; // Num-unlocked 5
case GDK_KP_Page_Down: return NS_VK_PAGE_DOWN;
case GDK_KP_Home: return NS_VK_HOME;
case GDK_KP_End: return NS_VK_END;
case GDK_KP_Insert: return NS_VK_INSERT;
case GDK_KP_Delete: return NS_VK_DELETE;
case GDK_KP_Enter: return NS_VK_RETURN;
case GDK_Num_Lock: return NS_VK_NUM_LOCK;
case GDK_Scroll_Lock: return NS_VK_SCROLL_LOCK;
// Function keys
case GDK_F1: return NS_VK_F1;
case GDK_F2: return NS_VK_F2;
case GDK_F3: return NS_VK_F3;
case GDK_F4: return NS_VK_F4;
case GDK_F5: return NS_VK_F5;
case GDK_F6: return NS_VK_F6;
case GDK_F7: return NS_VK_F7;
case GDK_F8: return NS_VK_F8;
case GDK_F9: return NS_VK_F9;
case GDK_F10: return NS_VK_F10;
case GDK_F11: return NS_VK_F11;
case GDK_F12: return NS_VK_F12;
case GDK_F13: return NS_VK_F13;
case GDK_F14: return NS_VK_F14;
case GDK_F15: return NS_VK_F15;
case GDK_F16: return NS_VK_F16;
case GDK_F17: return NS_VK_F17;
case GDK_F18: return NS_VK_F18;
case GDK_F19: return NS_VK_F19;
case GDK_F20: return NS_VK_F20;
case GDK_F21: return NS_VK_F21;
case GDK_F22: return NS_VK_F22;
case GDK_F23: return NS_VK_F23;
case GDK_F24: return NS_VK_F24;
// context menu key, keysym 0xff67, typically keycode 117 on 105-key
// (Microsoft) x86 keyboards, located between right 'Windows' key and
// right Ctrl key
case GDK_Menu: return NS_VK_CONTEXT_MENU;
case GDK_Sleep: return NS_VK_SLEEP;
case GDK_3270_Attn: return NS_VK_ATTN;
case GDK_3270_CursorSelect: return NS_VK_CRSEL;
case GDK_3270_ExSelect: return NS_VK_EXSEL;
case GDK_3270_EraseEOF: return NS_VK_EREOF;
case GDK_3270_Play: return NS_VK_PLAY;
// case GDK_XXX: return NS_VK_ZOOM;
case GDK_3270_PA1: return NS_VK_PA1;
// map Sun Keyboard special keysyms on to NS_VK keys
// Sun F11 key generates SunF36(0x1005ff10) keysym
case 0x1005ff10: return NS_VK_F11;
// Sun F12 key generates SunF37(0x1005ff11) keysym
case 0x1005ff11: return NS_VK_F12;
default: return 0;
}
}
void
KeymapWrapper::InitKeypressEvent(WidgetKeyboardEvent& aKeyEvent,
GdkEventKey* aGdkKeyEvent)
{
NS_ENSURE_TRUE_VOID(aKeyEvent.message == NS_KEY_PRESS);
aKeyEvent.charCode = GetCharCodeFor(aGdkKeyEvent);
if (!aKeyEvent.charCode) {
MOZ_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 or OS 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() && !aKeyEvent.IsOS()) {
MOZ_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) {
MOZ_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.
AlternativeCharCode 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) {
MOZ_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) {
MOZ_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;
}
AlternativeCharCode altLatinCharCodes(0, 0);
uint32_t unmodifiedCh =
aKeyEvent.IsShift() ? altCharCodes.mShiftedCharCode :
altCharCodes.mUnshiftedCharCode;
// unshifted charcode of found keyboard layout.
uint32_t 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;
}
MOZ_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