void
CameraControlImpl::OnHardwareStateChange(CameraControlListener::HardwareState aNewState,
nsresult aReason)
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread. On Gonk, it may be called from the camera's
// local binder thread, should the mediaserver process die.
MutexAutoLock lock(mListenerLock);
if (aNewState == mHardwareState) {
DOM_CAMERA_LOGI("OnHardwareStateChange: state did not change from %d\n", mHardwareState);
return;
}
const char* state[] = { "uninitialized", "closed", "open", "failed" };
MOZ_ASSERT(aNewState >= 0);
if (static_cast<unsigned int>(aNewState) < sizeof(state) / sizeof(state[0])) {
DOM_CAMERA_LOGI("New hardware state is '%s' (reason=0x%x)\n",
state[aNewState], aReason);
} else {
DOM_CAMERA_LOGE("OnHardwareStateChange: got invalid HardwareState value %d\n", aNewState);
}
mHardwareState = aNewState;
mHardwareStateChangeReason = aReason;
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnHardwareStateChange(mHardwareState, mHardwareStateChangeReason);
}
}
void
CameraControlImpl::OnClosed()
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread.
RwLockAutoEnterRead lock(mListenerLock);
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnHardwareStateChange(CameraControlListener::kHardwareClosed);
}
}
void
CameraControlImpl::AddListenerImpl(already_AddRefed<CameraControlListener> aListener)
{
MutexAutoLock lock(mListenerLock);
CameraControlListener* l = *mListeners.AppendElement() = aListener;
DOM_CAMERA_LOGI("Added camera control listener %p\n", l);
// Update the newly-added listener's state
l->OnConfigurationChange(mCurrentConfiguration);
l->OnHardwareStateChange(mHardwareState, mHardwareStateChangeReason);
l->OnPreviewStateChange(mPreviewState);
}