lib-nested/lib-nested-core/src/editors/char/ctx.rs

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Rust
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use {
r3vi::{
view::{
OuterViewPort,
singleton::*,
port::UpdateTask
},
buffer::singleton::*
},
laddertypes::{TypeTerm},
crate::{
repr_tree::{Context, ReprTree, ReprLeaf, ReprTreeExt, GenericReprTreeMorphism},
edit_tree::{EditTree, TreeNavResult},
editors::{
char::CharEditor,
ObjCommander
},
},
std::sync::Arc,
std::sync::RwLock
};
pub fn init_ctx( ctx: Arc<RwLock<Context>> ) {
let char_morph_to_edittree = GenericReprTreeMorphism::new(
Context::parse(&ctx, "Char"),
Context::parse(&ctx, "Char~EditTree"),
{
let ctx = ctx.clone();
move |rt, σ| {
{
let mut b = rt.write().unwrap().singleton_buffer::<char>();
if let Some(buf) = b {
// buffer already exists
} else {
// create char buffer
rt.write().unwrap().insert_leaf(
vec![].into_iter(),
ReprLeaf::from_singleton_buffer(SingletonBuffer::new('\0'))
);
}
}
let char_buf = rt.singleton_buffer::<char>();
let mut edittree = CharEditor::new_edit_tree(
ctx.clone(),
char_buf,
SingletonBuffer::<usize>::new(0).get_port()
);
rt.insert_leaf(
Context::parse(&ctx, "EditTree"),
ReprLeaf::from_singleton_buffer(
SingletonBuffer::new(
Arc::new(RwLock::new(edittree))
)
)
);
ctx.read().unwrap().setup_edittree(rt);
}
}
);
let char_morph_from_edittree = GenericReprTreeMorphism::new(
Context::parse(&ctx, "Char~EditTree"),
Context::parse(&ctx, "Char"),
{
let ctx = ctx.clone();
move |rt, σ|
{
let mut b = rt
.descend(Context::parse(&ctx, "EditTree")).unwrap()
.view_singleton::<Arc<RwLock<EditTree>>>();
rt.attach_leaf_to(
Context::parse(&ctx, "Char"),
b.map(|x|
x.read().unwrap()
.get_edit::<CharEditor>().unwrap()
.read().unwrap()
.get())
);
}
});
ctx.write().unwrap().morphisms.add_morphism( char_morph_to_edittree );
ctx.write().unwrap().morphisms.add_morphism( char_morph_from_edittree );
}