mirror of
https://github.com/lightsoutgames/godot-tts
synced 2024-11-08 20:35:57 +00:00
276 lines
8.8 KiB
Rust
276 lines
8.8 KiB
Rust
use std::sync::mpsc::{channel, Receiver};
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use gdnative::prelude::*;
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use tts::{Features, UtteranceId, TTS as Tts};
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#[derive(NativeClass)]
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#[inherit(Reference)]
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struct Utterance(pub(crate) Option<UtteranceId>);
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#[methods]
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impl Utterance {
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fn new(_owner: &Reference) -> Self {
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Self(None)
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}
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}
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enum Msg {
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UtteranceBegin(UtteranceId),
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UtteranceEnd(UtteranceId),
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UtteranceStop(UtteranceId),
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}
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#[derive(NativeClass)]
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#[inherit(Node)]
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#[register_with(Self::register)]
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struct TTS(Tts, Receiver<Msg>);
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#[methods]
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impl TTS {
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fn new(owner: &Node) -> Self {
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owner.set_pause_mode(2);
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let tts = Tts::default().unwrap();
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let (tx, rx) = channel();
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let Features {
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utterance_callbacks,
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..
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} = tts.supported_features();
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if utterance_callbacks {
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let tx_end = tx.clone();
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let tx_stop = tx.clone();
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tts.on_utterance_begin(Some(Box::new(move |utterance| {
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tx.send(Msg::UtteranceBegin(utterance)).unwrap();
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})))
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.expect("Failed to set utterance_begin callback");
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tts.on_utterance_end(Some(Box::new(move |utterance| {
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tx_end.send(Msg::UtteranceEnd(utterance)).unwrap();
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})))
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.expect("Failed to set utterance_end callback");
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tts.on_utterance_stop(Some(Box::new(move |utterance| {
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tx_stop.send(Msg::UtteranceStop(utterance)).unwrap();
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})))
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.expect("Failed to set utterance_stop callback");
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}
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Self(tts, rx)
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}
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fn register(builder: &ClassBuilder<Self>) {
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builder
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.add_property("rate")
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.with_getter(|this: &TTS, _| match this.0.get_rate() {
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Ok(rate) => rate,
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_ => 0.,
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})
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.with_setter(|this: &mut TTS, _, v: f32| {
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let Features {
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rate: rate_supported,
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..
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} = this.0.supported_features();
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if rate_supported {
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let mut v = v;
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if v < this.0.min_rate() {
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v = this.0.min_rate();
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} else if v > this.0.max_rate() {
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v = this.0.max_rate();
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}
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this.0.set_rate(v).unwrap();
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}
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})
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.done();
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builder
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.add_property("min_rate")
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.with_getter(|this: &TTS, _| {
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let Features {
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rate: rate_supported,
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..
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} = this.0.supported_features();
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if rate_supported {
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this.0.min_rate()
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} else {
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0.
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}
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})
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.done();
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builder
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.add_property("max_rate")
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.with_getter(|this: &TTS, _| {
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let Features {
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rate: rate_supported,
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..
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} = this.0.supported_features();
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if rate_supported {
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this.0.max_rate()
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} else {
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0.
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}
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})
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.done();
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builder
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.add_property("normal_rate")
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.with_getter(|this: &TTS, _| {
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let Features {
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rate: rate_supported,
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..
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} = this.0.supported_features();
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if rate_supported {
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this.0.normal_rate()
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} else {
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0.
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}
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})
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.done();
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builder
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.add_property("can_detect_screen_reader")
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.with_getter(|_: &TTS, _| {
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if cfg!(all(windows, features = "use_tolk")) {
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true
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} else {
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false
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}
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})
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.done();
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#[allow(unreachable_code)]
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builder
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.add_property("has_screen_reader")
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.with_getter(|_: &TTS, _| {
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#[cfg(all(windows, features = "use_tolk"))]
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{
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let tolk = tolk::Tolk::new();
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return tolk.detect_screen_reader().is_some();
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}
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false
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})
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.done();
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builder
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.add_property("can_detect_is_speaking")
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.with_getter(|this: &TTS, _| {
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let Features {
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is_speaking: is_speaking_supported,
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..
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} = this.0.supported_features();
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return is_speaking_supported;
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})
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.done();
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builder
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.add_property("is_speaking")
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.with_getter(|this: &TTS, _| {
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let Features {
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is_speaking: is_speaking_supported,
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..
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} = this.0.supported_features();
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if is_speaking_supported {
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return this.0.is_speaking().unwrap();
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} else {
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return false;
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}
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})
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.done();
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builder.add_signal(Signal {
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name: "utterance_begin",
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args: &[SignalArgument {
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name: "utterance",
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default: Variant::default(),
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export_info: ExportInfo::new(VariantType::Object),
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usage: PropertyUsage::DEFAULT,
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}],
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});
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builder.add_signal(Signal {
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name: "utterance_end",
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args: &[SignalArgument {
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name: "utterance",
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default: Variant::default(),
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export_info: ExportInfo::new(VariantType::Object),
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usage: PropertyUsage::DEFAULT,
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}],
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});
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builder.add_signal(Signal {
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name: "utterance_stop",
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args: &[SignalArgument {
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name: "utterance",
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default: Variant::default(),
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export_info: ExportInfo::new(VariantType::Object),
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usage: PropertyUsage::DEFAULT,
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}],
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});
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}
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#[export]
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fn speak(&mut self, _owner: &Node, message: GodotString, interrupt: bool) -> Variant {
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let message = message.to_string();
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if let Ok(id) = self.0.speak(message, interrupt) {
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let utterance: Instance<Utterance, Unique> = Instance::new();
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if id.is_some() {
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utterance
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.map_mut(|u, _| u.0 = id)
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.expect("Failed to set utterance ID");
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}
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let utterance = utterance.owned_to_variant();
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utterance
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} else {
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Variant::default()
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}
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}
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#[export]
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fn stop(&mut self, _owner: &Node) {
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self.0.stop().unwrap();
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}
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#[export]
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fn is_rate_supported(&mut self, _owner: &Node) -> bool {
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let Features {
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rate: rate_supported,
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..
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} = self.0.supported_features();
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rate_supported
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}
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#[export]
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fn are_utterance_callbacks_supported(&mut self, _owner: &Node) -> bool {
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let Features {
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utterance_callbacks: supported,
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..
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} = self.0.supported_features();
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supported
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}
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#[export]
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fn _process(&mut self, owner: &Node, _delta: f32) {
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if let Some(msg) = self.1.try_recv().ok() {
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match msg {
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Msg::UtteranceBegin(utterance_id) => {
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let utterance: Instance<Utterance, Unique> = Instance::new();
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utterance
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.map_mut(|u, _| u.0 = Some(utterance_id))
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.expect("Failed to set utterance ID");
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owner.emit_signal("utterance_begin", &[utterance.owned_to_variant()]);
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}
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Msg::UtteranceEnd(utterance_id) => {
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let utterance: Instance<Utterance, Unique> = Instance::new();
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utterance
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.map_mut(|u, _| u.0 = Some(utterance_id))
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.expect("Failed to set utterance ID");
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owner.emit_signal("utterance_end", &[utterance.owned_to_variant()]);
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}
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Msg::UtteranceStop(utterance_id) => {
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let utterance: Instance<Utterance, Unique> = Instance::new();
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utterance
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.map_mut(|u, _| u.0 = Some(utterance_id))
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.expect("Failed to set utterance ID");
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owner.emit_signal("utterance_stop", &[utterance.owned_to_variant()]);
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}
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}
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}
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}
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}
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fn init(handle: InitHandle) {
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env_logger::init();
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handle.add_tool_class::<Utterance>();
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handle.add_class::<TTS>();
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}
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godot_gdnative_init!();
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godot_nativescript_init!(init);
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godot_gdnative_terminate!();
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