2022-06-19 23:13:21 +02:00
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use {
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crate::{
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core::{InnerViewPort, Observer, ObserverBroadcast, ObserverExt, OuterViewPort, View},
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list::{ListCursor, ListCursorMode},
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projection::ProjectionHelper,
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sequence::SequenceView,
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singleton::SingletonView,
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terminal::{TerminalView, TerminalStyle, make_label},
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2022-11-13 15:26:25 +01:00
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Nested,
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2022-06-19 23:13:21 +02:00
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color::{bg_style_from_depth, fg_style_from_depth}
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},
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std::sync::Arc,
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std::sync::RwLock,
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};
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pub enum ListSegment<ItemEditor>
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2022-11-13 15:26:25 +01:00
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where ItemEditor: Nested + ?Sized + Send + Sync + 'static
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2022-06-19 23:13:21 +02:00
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{
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InsertCursor,
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Item {
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editor: Arc<RwLock<ItemEditor>>,
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depth: usize,
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cur_dist: isize,
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}
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}
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pub trait PTYSegment {
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fn pty_view(&self) -> OuterViewPort<dyn TerminalView>;
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}
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impl<ItemEditor> PTYSegment for ListSegment<ItemEditor>
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2022-11-13 15:26:25 +01:00
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where ItemEditor: Nested + ?Sized + Send + Sync + 'static
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2022-06-19 23:13:21 +02:00
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{
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fn pty_view(&self) -> OuterViewPort<dyn TerminalView> {
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match self {
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ListSegment::InsertCursor => {
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make_label("|")
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.map_item(move |_pt, atom| {
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2022-10-14 23:42:35 +02:00
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atom.add_style_front(TerminalStyle::fg_color((150,80,230)))
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.add_style_front(TerminalStyle::bold(true))
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2022-06-19 23:13:21 +02:00
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})
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}
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ListSegment::Item{ editor, depth, cur_dist } => {
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let e = editor.clone();
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let d = *depth;
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2022-10-14 23:42:35 +02:00
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let cur_dist = *cur_dist;
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2022-06-19 23:13:21 +02:00
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editor.read().unwrap().get_term_view().map_item(move |_pt, atom| {
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2022-10-14 23:42:35 +02:00
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let c = e.read().unwrap().get_cursor();
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let cur_depth = c.tree_addr.len();
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let select =
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2022-10-15 03:52:38 +02:00
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if cur_dist == 0 {
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cur_depth
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} else {
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usize::MAX
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2022-10-14 23:42:35 +02:00
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};
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atom
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2022-10-15 03:52:38 +02:00
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.add_style_back(bg_style_from_depth(select))
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.add_style_back(TerminalStyle::bold(select==1))
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2022-08-12 18:57:40 +02:00
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.add_style_back(fg_style_from_depth(d))
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2022-06-19 23:13:21 +02:00
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})
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}
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}
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}
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}
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pub struct ListSegmentSequence<ItemEditor>
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2022-11-13 15:26:25 +01:00
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where ItemEditor: Nested + ?Sized + Send + Sync + 'static
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2022-06-19 23:13:21 +02:00
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{
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data: Arc<dyn SequenceView<Item = Arc<RwLock<ItemEditor>>>>,
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cursor: Arc<dyn SingletonView<Item = ListCursor>>,
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depth: usize,
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cur_cursor: ListCursor,
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cast: Arc<RwLock<ObserverBroadcast<dyn SequenceView<Item = ListSegment<ItemEditor>>>>>,
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proj_helper: ProjectionHelper<usize, Self>,
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}
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impl<ItemEditor> View for ListSegmentSequence<ItemEditor>
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2022-11-13 15:26:25 +01:00
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where ItemEditor: Nested + ?Sized + Send + Sync + 'static
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2022-06-19 23:13:21 +02:00
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{
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type Msg = usize;
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}
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impl<ItemEditor> SequenceView for ListSegmentSequence<ItemEditor>
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2022-11-13 15:26:25 +01:00
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where ItemEditor: Nested + ?Sized + Send + Sync + 'static
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2022-06-19 23:13:21 +02:00
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{
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type Item = ListSegment<ItemEditor>;
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fn len(&self) -> Option<usize> {
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match self.cur_cursor.mode {
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ListCursorMode::Insert => {
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Some(self.data.len()? + if self.cur_cursor.idx.is_some() { 1 } else { 0 })
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}
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_ => self.data.len(),
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}
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}
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fn get(&self, idx: &usize) -> Option<Self::Item> {
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let c = self.cursor.get();
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2022-12-18 01:39:01 +01:00
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Some(if let Some(cur) = c.idx {
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2022-06-19 23:13:21 +02:00
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match c.mode {
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ListCursorMode::Select => {
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ListSegment::Item {
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editor: self.data.get(idx)?,
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depth: self.depth,
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cur_dist: cur - *idx as isize
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}
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}
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ListCursorMode::Insert => {
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if *idx < cur as usize {
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ListSegment::Item {
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editor: self.data.get(idx)?,
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depth: self.depth,
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cur_dist: cur - *idx as isize
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}
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} else if *idx == cur as usize {
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ListSegment::InsertCursor
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} else {
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ListSegment::Item {
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editor: self.data.get(&(*idx - 1))?,
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depth: self.depth,
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2022-10-14 23:42:35 +02:00
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cur_dist: cur - *idx as isize
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2022-06-19 23:13:21 +02:00
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}
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}
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}
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}
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} else {
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ListSegment::Item {
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editor: self.data.get(&idx)?,
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depth: self.depth,
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cur_dist: *idx as isize + 1
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}
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})
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}
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}
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impl<ItemEditor> ListSegmentSequence<ItemEditor>
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2022-11-13 15:26:25 +01:00
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where ItemEditor: Nested + ?Sized + Send + Sync + 'static
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2022-06-19 23:13:21 +02:00
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{
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pub fn new(
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cursor_port: OuterViewPort<dyn SingletonView<Item = ListCursor>>,
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data_port: OuterViewPort<dyn SequenceView<Item = Arc<RwLock<ItemEditor>>>>,
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out_port: InnerViewPort<dyn SequenceView<Item = ListSegment<ItemEditor>>>,
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depth: usize
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) -> Arc<RwLock<Self>> {
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let mut proj_helper = ProjectionHelper::new(out_port.0.update_hooks.clone());
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let proj = Arc::new(RwLock::new(ListSegmentSequence {
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cur_cursor: cursor_port.get_view().get(),
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depth,
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2022-06-24 15:54:05 +02:00
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2022-06-19 23:13:21 +02:00
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cursor: proj_helper.new_singleton_arg(0, cursor_port, |s: &mut Self, _msg| {
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let _old_cursor = s.cur_cursor;
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s.cur_cursor = s.cursor.get();
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// todo: optimize
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s.cast.notify_each(0..=s.data.len().unwrap_or(0) + 1);
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}),
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data: proj_helper.new_sequence_arg(1, data_port, |s: &mut Self, idx| {
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2022-12-18 01:39:01 +01:00
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if let Some(cur_idx) = s.cur_cursor.idx {
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2022-06-19 23:13:21 +02:00
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match s.cur_cursor.mode {
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ListCursorMode::Insert => {
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if *idx < cur_idx as usize {
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s.cast.notify(idx);
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} else {
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s.cast.notify(&(*idx + 1));
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}
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}
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_ => {
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s.cast.notify(idx);
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}
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}
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} else {
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s.cast.notify(idx);
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}
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}),
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cast: out_port.get_broadcast(),
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proj_helper,
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}));
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proj.write().unwrap().proj_helper.set_proj(&proj);
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out_port.set_view(Some(proj.clone()));
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proj
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}
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}
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