mirror of https://github.com/helix-editor/helix
more reworking
mattwparas
2 years ago
parent
15886dec3f
commit
4213328ebd
@ -1 +1,23 @@
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impl steel::rvals::Custom for crate::Position {}
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struct SRopeSlice<'a>(crate::RopeSlice<'a>);
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impl<'a> SRopeSlice<'a> {
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pub fn char_to_byte(&self, pos: usize) -> usize {
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self.0.char_to_byte(pos)
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}
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pub fn byte_slice(&'a self, lower: usize, upper: usize) -> SRopeSlice<'a> {
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SRopeSlice(self.0.byte_slice(lower..upper))
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}
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pub fn line(&'a self, cursor: usize) -> SRopeSlice<'a> {
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SRopeSlice(self.0.line(cursor))
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}
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// Reference types are really sus. Not sure how this is going to work, but it might? Hopefully it cleans
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// itself up as we go...
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pub fn as_str(&'a self) -> Option<&'a str> {
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self.0.as_str()
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}
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}
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@ -0,0 +1,463 @@
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use std::collections::HashMap;
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use helix_view::Editor;
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use steel::{
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rvals::{Custom, FromSteelVal, IntoSteelVal},
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steel_vm::{builtin::BuiltInModule, engine::Engine, register_fn::RegisterFn},
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SteelVal,
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};
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use crate::{
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commands::{engine::ENGINE, Context},
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compositor::{self, Component},
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ui::Popup,
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};
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pub fn helix_component_module() -> BuiltInModule {
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let mut module = BuiltInModule::new("helix/components".to_string());
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module.register_fn("new-component!", SteelDynamicComponent::new_dyn);
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module.register_fn("SteelDynamicComponent?", |object: SteelVal| {
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if let SteelVal::Custom(v) = object {
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if let Some(wrapped) = v.borrow().as_any_ref().downcast_ref::<BoxDynComponent>() {
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return wrapped.inner.as_any().is::<SteelDynamicComponent>();
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} else {
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false
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}
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} else {
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false
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}
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});
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module.register_fn(
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"SteelDynamicComponent-state",
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SteelDynamicComponent::get_state,
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);
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module.register_fn(
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"SteelDynamicComponent-render",
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SteelDynamicComponent::get_render,
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);
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module.register_fn(
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"SteelDynamicComponent-handle-event",
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SteelDynamicComponent::get_handle_event,
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);
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module.register_fn(
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"SteelDynamicComponent-should-update",
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SteelDynamicComponent::should_update,
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);
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module.register_fn(
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"SteelDynamicComponent-cursor",
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SteelDynamicComponent::cursor,
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);
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module.register_fn(
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"SteelDynamicComponent-required-size",
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SteelDynamicComponent::get_required_size,
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);
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// engine.register_fn("WrappedComponent", WrappedDynComponent::new)
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module.register_fn(
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"Popup::new",
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|contents: &mut WrappedDynComponent,
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position: helix_core::Position|
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-> WrappedDynComponent {
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let inner = contents.inner.take().unwrap(); // Panic, for now
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WrappedDynComponent {
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inner: Some(Box::new(
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Popup::<BoxDynComponent>::new("popup", BoxDynComponent::new(inner))
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.position(Some(position)),
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)),
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}
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},
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);
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module.register_fn("Picker::new", |values: Vec<String>| todo!());
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// engine.register_fn(
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// "Picker::new",
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// |contents: &mut Wrapped
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// )
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module.register_fn("Component::Text", |contents: String| WrappedDynComponent {
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inner: Some(Box::new(crate::ui::Text::new(contents))),
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});
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// Separate this out into its own component module - This just lets us call the underlying
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// component, not sure if we can go from trait object -> trait object easily but we'll see!
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module.register_fn(
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"Component::render",
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|t: &mut WrappedDynComponent,
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area: helix_view::graphics::Rect,
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frame: &mut tui::buffer::Buffer,
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ctx: &mut Context| {
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t.inner.as_mut().unwrap().render(
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area,
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frame,
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&mut compositor::Context {
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jobs: ctx.jobs,
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editor: ctx.editor,
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scroll: None,
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},
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)
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},
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);
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module.register_fn(
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"Component::handle-event",
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|s: &mut WrappedDynComponent, event: &helix_view::input::Event, ctx: &mut Context| {
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s.inner.as_mut().unwrap().handle_event(
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event,
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&mut compositor::Context {
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jobs: ctx.jobs,
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editor: ctx.editor,
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scroll: None,
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},
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)
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},
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);
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module.register_fn("Component::should-update", |s: &mut WrappedDynComponent| {
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s.inner.as_mut().unwrap().should_update()
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});
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module.register_fn(
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"Component::cursor",
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|s: &WrappedDynComponent, area: helix_view::graphics::Rect, ctx: &Editor| {
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s.inner.as_ref().unwrap().cursor(area, ctx)
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},
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);
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module.register_fn(
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"Component::required-size",
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|s: &mut WrappedDynComponent, viewport: (u16, u16)| {
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s.inner.as_mut().unwrap().required_size(viewport)
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},
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);
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module
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}
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/// A dynamic component, used for rendering thing
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#[derive(Clone)]
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// TODO: Implement `trace` method for objects that hold steel vals
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pub struct SteelDynamicComponent {
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name: String,
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// This _should_ be a struct, but in theory can be whatever you want. It will be the first argument
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// passed to the functions in the remainder of the struct.
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state: SteelVal,
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handle_event: Option<SteelVal>,
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should_update: Option<SteelVal>,
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render: SteelVal,
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cursor: Option<SteelVal>,
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required_size: Option<SteelVal>,
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}
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impl SteelDynamicComponent {
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pub fn new(
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name: String,
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state: SteelVal,
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render: SteelVal,
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h: HashMap<String, SteelVal>,
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) -> Self {
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// if let SteelVal::HashMapV(h) = functions {
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Self {
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name,
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state,
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render,
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handle_event: h.get("handle_event").cloned(),
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should_update: h.get("should_update").cloned(),
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cursor: h.get("cursor").cloned(),
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required_size: h.get("required_size").cloned(),
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}
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// } else {
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// panic!("Implement better error handling")
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// }
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}
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pub fn new_dyn(
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name: String,
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state: SteelVal,
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render: SteelVal,
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h: HashMap<String, SteelVal>,
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) -> WrappedDynComponent {
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let s = Self::new(name, state, render, h);
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WrappedDynComponent {
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inner: Some(Box::new(s)),
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}
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}
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pub fn get_state(&self) -> SteelVal {
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self.state.clone()
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}
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pub fn get_render(&self) -> SteelVal {
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self.render.clone()
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}
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pub fn get_handle_event(&self) -> Option<SteelVal> {
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self.handle_event.clone()
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}
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pub fn get_should_update(&self) -> Option<SteelVal> {
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self.should_update.clone()
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}
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pub fn get_cursor(&self) -> Option<SteelVal> {
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self.cursor.clone()
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}
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pub fn get_required_size(&self) -> Option<SteelVal> {
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self.required_size.clone()
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}
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}
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impl Custom for SteelDynamicComponent {}
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impl Custom for Box<dyn Component> {}
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pub struct WrappedDynComponent {
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inner: Option<Box<dyn Component>>,
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}
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impl Custom for WrappedDynComponent {}
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struct BoxDynComponent {
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inner: Box<dyn Component>,
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}
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impl BoxDynComponent {
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pub fn new(inner: Box<dyn Component>) -> Self {
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Self { inner }
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}
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}
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impl Component for BoxDynComponent {
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fn handle_event(
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&mut self,
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_event: &helix_view::input::Event,
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_ctx: &mut compositor::Context,
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) -> compositor::EventResult {
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self.inner.handle_event(_event, _ctx)
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}
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fn should_update(&self) -> bool {
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self.inner.should_update()
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}
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fn cursor(
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&self,
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_area: helix_view::graphics::Rect,
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_ctx: &Editor,
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) -> (
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Option<helix_core::Position>,
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helix_view::graphics::CursorKind,
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) {
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self.inner.cursor(_area, _ctx)
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}
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fn required_size(&mut self, _viewport: (u16, u16)) -> Option<(u16, u16)> {
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self.inner.required_size(_viewport)
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}
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fn type_name(&self) -> &'static str {
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std::any::type_name::<Self>()
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}
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fn id(&self) -> Option<&'static str> {
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None
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}
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fn render(
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&mut self,
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area: helix_view::graphics::Rect,
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frame: &mut tui::buffer::Buffer,
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ctx: &mut compositor::Context,
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) {
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self.inner.render(area, frame, ctx)
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}
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}
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impl Component for SteelDynamicComponent {
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fn render(
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&mut self,
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area: helix_view::graphics::Rect,
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frame: &mut tui::buffer::Buffer,
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ctx: &mut compositor::Context,
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) {
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let mut ctx = Context {
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register: None,
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count: None,
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editor: ctx.editor,
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callback: None,
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on_next_key_callback: None,
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jobs: ctx.jobs,
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};
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// Pass the `state` object through - this can be used for storing the state of whatever plugin thing we're
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// attempting to render
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let thunk = |engine: &mut Engine, f, c| {
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engine.call_function_with_args(
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self.render.clone(),
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vec![self.state.clone(), area.into_steelval().unwrap(), f, c],
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)
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};
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ENGINE
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.with(|x| {
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x.borrow_mut()
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.with_mut_reference::<tui::buffer::Buffer, tui::buffer::Buffer>(frame)
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.with_mut_reference::<Context, Context>(&mut ctx)
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.consume(|engine, args| {
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let mut arg_iter = args.into_iter();
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(thunk)(engine, arg_iter.next().unwrap(), arg_iter.next().unwrap())
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})
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// .run_with_references::<tui::buffer::Buffer, tui::buffer::Buffer, Context, Context>(
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// frame, &mut ctx, thunk,
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// )
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})
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.unwrap();
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log::info!("Calling dynamic render!");
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}
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// TODO: Pass in event as well? Need to have immutable reference type
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// Otherwise, we're gonna be in a bad spot. For now - just clone the object and pass it through.
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// Clong is _not_ ideal, but it might be all we can do for now.
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fn handle_event(
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&mut self,
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event: &helix_view::input::Event,
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ctx: &mut compositor::Context,
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) -> compositor::EventResult {
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if let Some(handle_event) = &mut self.handle_event {
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let mut ctx = Context {
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register: None,
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count: None,
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editor: ctx.editor,
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callback: None,
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on_next_key_callback: None,
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jobs: ctx.jobs,
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};
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// Pass the `state` object through - this can be used for storing the state of whatever plugin thing we're
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// attempting to render
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let thunk = |engine: &mut Engine, c| {
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engine.call_function_with_args(
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handle_event.clone(),
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vec![
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self.state.clone(),
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// TODO: We do _not_ want to clone here, we would need to create a bunch of methods on the engine for various
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// combinations of reference passing to do this safely. Right now its limited to mutable references, but we should
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// expose more - investigate macros on how to do that with recursively crunching the list to generate the combinations.
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// Experimentation needed.
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event.clone().into_steelval().unwrap(),
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c,
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],
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)
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};
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match ENGINE.with(|x| {
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x.borrow_mut()
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.run_thunk_with_reference::<Context, Context>(&mut ctx, thunk)
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}) {
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Ok(v) => compositor::EventResult::from_steelval(&v)
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.unwrap_or_else(|_| compositor::EventResult::Ignored(None)),
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Err(_) => compositor::EventResult::Ignored(None),
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}
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} else {
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compositor::EventResult::Ignored(None)
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}
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}
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fn should_update(&self) -> bool {
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if let Some(should_update) = &self.should_update {
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match ENGINE.with(|x| {
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x.borrow_mut()
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.call_function_with_args(should_update.clone(), vec![self.state.clone()])
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}) {
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Ok(v) => bool::from_steelval(&v).unwrap_or(true),
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Err(_) => true,
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}
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} else {
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true
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}
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}
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// TODO: Implement immutable references. Right now I'm only supporting mutable references.
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fn cursor(
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&self,
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area: helix_view::graphics::Rect,
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ctx: &Editor,
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) -> (
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Option<helix_core::Position>,
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helix_view::graphics::CursorKind,
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) {
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if let Some(cursor) = &self.cursor {
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// Pass the `state` object through - this can be used for storing the state of whatever plugin thing we're
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// attempting to render
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let thunk = |engine: &mut Engine, e| {
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engine.call_function_with_args(
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cursor.clone(),
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vec![self.state.clone(), area.into_steelval().unwrap(), e],
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)
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};
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<(
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Option<helix_core::Position>,
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helix_view::graphics::CursorKind,
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)>::from_steelval(&ENGINE.with(|x| {
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x.borrow_mut()
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.run_thunk_with_ro_reference::<Editor, Editor>(ctx, thunk)
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.unwrap()
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}))
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.unwrap()
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} else {
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(None, helix_view::graphics::CursorKind::Hidden)
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}
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}
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fn required_size(&mut self, viewport: (u16, u16)) -> Option<(u16, u16)> {
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let name = self.type_name();
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if let Some(required_size) = &mut self.required_size {
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log::info!("Calling required-size inside: {}", name);
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// TODO: Create some token that we can grab to enqueue function calls internally. Referencing
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// the external API would cause problems - we just need to include a handle to the interpreter
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// instance. Something like:
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// ENGINE.call_function_or_enqueue? OR - this is the externally facing render function. Internal
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// render calls do _not_ go through this interface. Instead, they are just called directly.
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//
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// If we go through this interface, we're going to get an already borrowed mut error, since it is
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// re-entrant attempting to grab the ENGINE instead mutably, since we have to break the recursion
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// somehow. By putting it at the edge, we then say - hey for these functions on this interface,
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// call the engine instance. Otherwise, all computation happens inside the engine.
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let res = ENGINE
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.with(|x| {
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x.borrow_mut().call_function_with_args(
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required_size.clone(),
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vec![self.state.clone(), viewport.into_steelval().unwrap()],
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)
|
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})
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.and_then(|x| Option::<(u16, u16)>::from_steelval(&x))
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.unwrap();
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|
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res
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} else {
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None
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}
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}
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|
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fn type_name(&self) -> &'static str {
|
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std::any::type_name::<Self>()
|
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}
|
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|
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fn id(&self) -> Option<&'static str> {
|
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None
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}
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}
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@ -1,7 +1,11 @@
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use steel::{gc::unsafe_erased_pointers::CustomReference, rvals::Custom};
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use crate::{graphics::Rect, input::Event};
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use crate::{graphics::Rect, input::Event, Document, DocumentId, ViewId};
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|
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// Reference types along with value types - This should allow for having users
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impl CustomReference for Event {}
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impl Custom for Rect {}
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impl Custom for crate::graphics::CursorKind {}
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impl Custom for DocumentId {}
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impl Custom for ViewId {}
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impl CustomReference for Document {}
|
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