void
GamepadService::NewConnectionEvent(uint32_t aIndex, bool aConnected)
{
RefPtr<Gamepad> gamepad = GetGamepad(aIndex);
if (mShuttingDown || !gamepad) {
return;
}
// Hold on to listeners in a separate array because firing events
// can mutate the mListeners array.
nsTArray<RefPtr<nsGlobalWindow> > listeners(mListeners);
if (aConnected) {
for (uint32_t i = listeners.Length(); i > 0 ; ) {
--i;
MOZ_ASSERT(listeners[i]->IsInnerWindow());
// Only send events to non-background windows
if (!listeners[i]->AsInner()->IsCurrentInnerWindow() ||
listeners[i]->GetOuterWindow()->IsBackground()) {
continue;
}
// We don't fire a connected event here unless the window
// has seen input from at least one device.
if (!listeners[i]->HasSeenGamepadInput()) {
continue;
}
SetWindowHasSeenGamepad(listeners[i], aIndex);
RefPtr<Gamepad> listenerGamepad = listeners[i]->GetGamepad(aIndex);
if (listenerGamepad) {
// Fire event
FireConnectionEvent(listeners[i], listenerGamepad, aConnected);
}
}
} else {
// For disconnection events, fire one at every window that has received
// data from this gamepad.
for (uint32_t i = listeners.Length(); i > 0 ; ) {
--i;
// Even background windows get these events, so we don't have to
// deal with the hassle of syncing the state of removed gamepads.
if (WindowHasSeenGamepad(listeners[i], aIndex)) {
RefPtr<Gamepad> listenerGamepad = listeners[i]->GetGamepad(aIndex);
if (listenerGamepad) {
listenerGamepad->SetConnected(false);
// Fire event
FireConnectionEvent(listeners[i], listenerGamepad, false);
listeners[i]->RemoveGamepad(aIndex);
}
}
}
}
}
void
GamepadService::NewButtonEvent(uint32_t aIndex, uint32_t aButton, bool aPressed,
double aValue)
{
RefPtr<Gamepad> gamepad = GetGamepad(aIndex);
if (mShuttingDown || !gamepad) {
return;
}
gamepad->SetButton(aButton, aPressed, aValue);
// Hold on to listeners in a separate array because firing events
// can mutate the mListeners array.
nsTArray<RefPtr<nsGlobalWindow>> listeners(mListeners);
for (uint32_t i = listeners.Length(); i > 0 ; ) {
--i;
MOZ_ASSERT(listeners[i]->IsInnerWindow());
// Only send events to non-background windows
if (!listeners[i]->AsInner()->IsCurrentInnerWindow() ||
listeners[i]->GetOuterWindow()->IsBackground()) {
continue;
}
bool first_time = false;
if (!WindowHasSeenGamepad(listeners[i], aIndex)) {
// This window hasn't seen this gamepad before, so
// send a connection event first.
SetWindowHasSeenGamepad(listeners[i], aIndex);
first_time = true;
}
RefPtr<Gamepad> listenerGamepad = listeners[i]->GetGamepad(aIndex);
if (listenerGamepad) {
listenerGamepad->SetButton(aButton, aPressed, aValue);
if (first_time) {
FireConnectionEvent(listeners[i], listenerGamepad, true);
}
if (mNonstandardEventsEnabled) {
// Fire event
FireButtonEvent(listeners[i], listenerGamepad, aButton, aValue);
}
}
}
}
void
GamepadService::NewAxisMoveEvent(uint32_t aIndex, uint32_t aAxis, double aValue)
{
if (mShuttingDown || aIndex >= mGamepads.Length()) {
return;
}
mGamepads[aIndex]->SetAxis(aAxis, aValue);
// Hold on to listeners in a separate array because firing events
// can mutate the mListeners array.
nsTArray<nsRefPtr<nsGlobalWindow> > listeners(mListeners);
for (uint32_t i = listeners.Length(); i > 0 ; ) {
--i;
// Only send events to non-background windows
if (!listeners[i]->GetOuterWindow() ||
listeners[i]->GetOuterWindow()->IsBackground()) {
continue;
}
bool first_time = false;
if (!WindowHasSeenGamepad(listeners[i], aIndex)) {
// This window hasn't seen this gamepad before, so
// send a connection event first.
SetWindowHasSeenGamepad(listeners[i], aIndex);
first_time = true;
}
nsRefPtr<Gamepad> gamepad = listeners[i]->GetGamepad(aIndex);
if (gamepad) {
gamepad->SetAxis(aAxis, aValue);
if (first_time) {
FireConnectionEvent(listeners[i], gamepad, true);
}
if (mNonstandardEventsEnabled) {
// Fire event
FireAxisMoveEvent(listeners[i], gamepad, aAxis, aValue);
}
}
}
}