void
CameraControlImpl::OnPreviewStateChange(CameraControlListener::PreviewState aNewState)
{
// This callback runs on the Main Thread and the Camera Thread, and
// may run on the local binder thread, should the mediaserver
// process die.
MutexAutoLock lock(mListenerLock);
if (aNewState == mPreviewState) {
DOM_CAMERA_LOGI("OnPreviewStateChange: state did not change from %d\n", mPreviewState);
return;
}
const char* state[] = { "stopped", "paused", "started" };
MOZ_ASSERT(aNewState >= 0);
if (static_cast<unsigned int>(aNewState) < sizeof(state) / sizeof(state[0])) {
DOM_CAMERA_LOGI("New preview state is '%s'\n", state[aNewState]);
} else {
DOM_CAMERA_LOGE("OnPreviewStateChange: got unknown PreviewState value %d\n", aNewState);
}
mPreviewState = aNewState;
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnPreviewStateChange(mPreviewState);
}
}
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);
}