mirror of
https://github.com/zed-industries/zed.git
synced 2025-01-08 22:07:49 +03:00
1751 lines
63 KiB
Rust
1751 lines
63 KiB
Rust
mod block_map;
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mod fold_map;
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mod inlay_map;
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mod tab_map;
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mod wrap_map;
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use crate::{Anchor, AnchorRangeExt, InlayId, MultiBuffer, MultiBufferSnapshot, ToOffset, ToPoint};
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pub use block_map::{BlockMap, BlockPoint};
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use collections::{HashMap, HashSet};
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use fold_map::FoldMap;
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use gpui::{
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color::Color,
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fonts::{FontId, HighlightStyle},
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Entity, ModelContext, ModelHandle,
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};
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use inlay_map::InlayMap;
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use language::{
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language_settings::language_settings, OffsetUtf16, Point, Subscription as BufferSubscription,
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};
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use std::{any::TypeId, fmt::Debug, num::NonZeroU32, ops::Range, sync::Arc};
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use sum_tree::{Bias, TreeMap};
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use tab_map::TabMap;
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use text::Rope;
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use wrap_map::WrapMap;
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pub use block_map::{
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BlockBufferRows as DisplayBufferRows, BlockChunks as DisplayChunks, BlockContext,
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BlockDisposition, BlockId, BlockProperties, BlockStyle, RenderBlock, TransformBlock,
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};
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pub use self::inlay_map::{Inlay, InlayProperties};
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#[derive(Copy, Clone, Debug, PartialEq, Eq)]
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pub enum FoldStatus {
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Folded,
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Foldable,
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}
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pub trait ToDisplayPoint {
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fn to_display_point(&self, map: &DisplaySnapshot) -> DisplayPoint;
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}
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type TextHighlights = TreeMap<Option<TypeId>, Arc<(HighlightStyle, Vec<Range<Anchor>>)>>;
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pub struct DisplayMap {
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buffer: ModelHandle<MultiBuffer>,
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buffer_subscription: BufferSubscription,
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fold_map: FoldMap,
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inlay_map: InlayMap,
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tab_map: TabMap,
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wrap_map: ModelHandle<WrapMap>,
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block_map: BlockMap,
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text_highlights: TextHighlights,
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pub clip_at_line_ends: bool,
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}
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impl Entity for DisplayMap {
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type Event = ();
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}
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impl DisplayMap {
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pub fn new(
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buffer: ModelHandle<MultiBuffer>,
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font_id: FontId,
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font_size: f32,
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wrap_width: Option<f32>,
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buffer_header_height: u8,
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excerpt_header_height: u8,
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cx: &mut ModelContext<Self>,
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) -> Self {
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let buffer_subscription = buffer.update(cx, |buffer, _| buffer.subscribe());
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let tab_size = Self::tab_size(&buffer, cx);
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let (inlay_map, snapshot) = InlayMap::new(buffer.read(cx).snapshot(cx));
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let (fold_map, snapshot) = FoldMap::new(snapshot);
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let (tab_map, snapshot) = TabMap::new(snapshot, tab_size);
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let (wrap_map, snapshot) = WrapMap::new(snapshot, font_id, font_size, wrap_width, cx);
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let block_map = BlockMap::new(snapshot, buffer_header_height, excerpt_header_height);
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cx.observe(&wrap_map, |_, _, cx| cx.notify()).detach();
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DisplayMap {
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buffer,
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buffer_subscription,
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fold_map,
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inlay_map,
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tab_map,
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wrap_map,
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block_map,
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text_highlights: Default::default(),
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clip_at_line_ends: false,
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}
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}
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pub fn snapshot(&mut self, cx: &mut ModelContext<Self>) -> DisplaySnapshot {
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let buffer_snapshot = self.buffer.read(cx).snapshot(cx);
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let edits = self.buffer_subscription.consume().into_inner();
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let (inlay_snapshot, edits) = self.inlay_map.sync(buffer_snapshot, edits);
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let (fold_snapshot, edits) = self.fold_map.read(inlay_snapshot.clone(), edits);
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let tab_size = Self::tab_size(&self.buffer, cx);
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let (tab_snapshot, edits) = self.tab_map.sync(fold_snapshot.clone(), edits, tab_size);
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let (wrap_snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(tab_snapshot.clone(), edits, cx));
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let block_snapshot = self.block_map.read(wrap_snapshot.clone(), edits);
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DisplaySnapshot {
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buffer_snapshot: self.buffer.read(cx).snapshot(cx),
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fold_snapshot,
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inlay_snapshot,
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tab_snapshot,
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wrap_snapshot,
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block_snapshot,
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text_highlights: self.text_highlights.clone(),
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clip_at_line_ends: self.clip_at_line_ends,
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}
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}
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pub fn set_state(&mut self, other: &DisplaySnapshot, cx: &mut ModelContext<Self>) {
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self.fold(
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other
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.folds_in_range(0..other.buffer_snapshot.len())
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.map(|fold| fold.to_offset(&other.buffer_snapshot)),
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cx,
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);
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}
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pub fn fold<T: ToOffset>(
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&mut self,
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ranges: impl IntoIterator<Item = Range<T>>,
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cx: &mut ModelContext<Self>,
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) {
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let snapshot = self.buffer.read(cx).snapshot(cx);
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let edits = self.buffer_subscription.consume().into_inner();
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let tab_size = Self::tab_size(&self.buffer, cx);
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let (snapshot, edits) = self.inlay_map.sync(snapshot, edits);
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let (mut fold_map, snapshot, edits) = self.fold_map.write(snapshot, edits);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits, tab_size);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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self.block_map.read(snapshot, edits);
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let (snapshot, edits) = fold_map.fold(ranges);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits, tab_size);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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self.block_map.read(snapshot, edits);
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}
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pub fn unfold<T: ToOffset>(
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&mut self,
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ranges: impl IntoIterator<Item = Range<T>>,
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inclusive: bool,
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cx: &mut ModelContext<Self>,
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) {
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let snapshot = self.buffer.read(cx).snapshot(cx);
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let edits = self.buffer_subscription.consume().into_inner();
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let tab_size = Self::tab_size(&self.buffer, cx);
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let (snapshot, edits) = self.inlay_map.sync(snapshot, edits);
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let (mut fold_map, snapshot, edits) = self.fold_map.write(snapshot, edits);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits, tab_size);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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self.block_map.read(snapshot, edits);
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let (snapshot, edits) = fold_map.unfold(ranges, inclusive);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits, tab_size);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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self.block_map.read(snapshot, edits);
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}
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pub fn insert_blocks(
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&mut self,
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blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
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cx: &mut ModelContext<Self>,
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) -> Vec<BlockId> {
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let snapshot = self.buffer.read(cx).snapshot(cx);
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let edits = self.buffer_subscription.consume().into_inner();
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let tab_size = Self::tab_size(&self.buffer, cx);
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let (snapshot, edits) = self.inlay_map.sync(snapshot, edits);
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let (snapshot, edits) = self.fold_map.read(snapshot, edits);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits, tab_size);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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let mut block_map = self.block_map.write(snapshot, edits);
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block_map.insert(blocks)
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}
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pub fn replace_blocks(&mut self, styles: HashMap<BlockId, RenderBlock>) {
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self.block_map.replace(styles);
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}
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pub fn remove_blocks(&mut self, ids: HashSet<BlockId>, cx: &mut ModelContext<Self>) {
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let snapshot = self.buffer.read(cx).snapshot(cx);
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let edits = self.buffer_subscription.consume().into_inner();
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let tab_size = Self::tab_size(&self.buffer, cx);
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let (snapshot, edits) = self.inlay_map.sync(snapshot, edits);
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let (snapshot, edits) = self.fold_map.read(snapshot, edits);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits, tab_size);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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let mut block_map = self.block_map.write(snapshot, edits);
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block_map.remove(ids);
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}
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pub fn highlight_text(
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&mut self,
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type_id: TypeId,
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ranges: Vec<Range<Anchor>>,
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style: HighlightStyle,
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) {
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self.text_highlights
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.insert(Some(type_id), Arc::new((style, ranges)));
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}
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pub fn text_highlights(&self, type_id: TypeId) -> Option<(HighlightStyle, &[Range<Anchor>])> {
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let highlights = self.text_highlights.get(&Some(type_id))?;
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Some((highlights.0, &highlights.1))
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}
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pub fn clear_text_highlights(
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&mut self,
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type_id: TypeId,
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) -> Option<Arc<(HighlightStyle, Vec<Range<Anchor>>)>> {
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self.text_highlights.remove(&Some(type_id))
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}
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pub fn set_font(&self, font_id: FontId, font_size: f32, cx: &mut ModelContext<Self>) -> bool {
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self.wrap_map
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.update(cx, |map, cx| map.set_font(font_id, font_size, cx))
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}
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pub fn set_fold_ellipses_color(&mut self, color: Color) -> bool {
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self.fold_map.set_ellipses_color(color)
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}
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pub fn set_wrap_width(&self, width: Option<f32>, cx: &mut ModelContext<Self>) -> bool {
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self.wrap_map
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.update(cx, |map, cx| map.set_wrap_width(width, cx))
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}
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pub fn current_inlays(&self) -> impl Iterator<Item = &Inlay> {
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self.inlay_map.current_inlays()
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}
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pub fn splice_inlays<T: Into<Rope>>(
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&mut self,
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to_remove: Vec<InlayId>,
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to_insert: Vec<(InlayId, InlayProperties<T>)>,
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cx: &mut ModelContext<Self>,
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) {
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if to_remove.is_empty() && to_insert.is_empty() {
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return;
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}
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let buffer_snapshot = self.buffer.read(cx).snapshot(cx);
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let edits = self.buffer_subscription.consume().into_inner();
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let (snapshot, edits) = self.inlay_map.sync(buffer_snapshot, edits);
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let (snapshot, edits) = self.fold_map.read(snapshot, edits);
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let tab_size = Self::tab_size(&self.buffer, cx);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits, tab_size);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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self.block_map.read(snapshot, edits);
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let (snapshot, edits) = self.inlay_map.splice(to_remove, to_insert);
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let (snapshot, edits) = self.fold_map.read(snapshot, edits);
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let (snapshot, edits) = self.tab_map.sync(snapshot, edits, tab_size);
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let (snapshot, edits) = self
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.wrap_map
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.update(cx, |map, cx| map.sync(snapshot, edits, cx));
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self.block_map.read(snapshot, edits);
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}
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fn tab_size(buffer: &ModelHandle<MultiBuffer>, cx: &mut ModelContext<Self>) -> NonZeroU32 {
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let language = buffer
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.read(cx)
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.as_singleton()
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.and_then(|buffer| buffer.read(cx).language());
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language_settings(language.as_deref(), None, cx).tab_size
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}
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#[cfg(test)]
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pub fn is_rewrapping(&self, cx: &gpui::AppContext) -> bool {
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self.wrap_map.read(cx).is_rewrapping()
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}
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}
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pub struct DisplaySnapshot {
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pub buffer_snapshot: MultiBufferSnapshot,
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fold_snapshot: fold_map::FoldSnapshot,
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inlay_snapshot: inlay_map::InlaySnapshot,
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tab_snapshot: tab_map::TabSnapshot,
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wrap_snapshot: wrap_map::WrapSnapshot,
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block_snapshot: block_map::BlockSnapshot,
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text_highlights: TextHighlights,
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clip_at_line_ends: bool,
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}
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impl DisplaySnapshot {
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#[cfg(test)]
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pub fn fold_count(&self) -> usize {
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self.fold_snapshot.fold_count()
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}
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pub fn is_empty(&self) -> bool {
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self.buffer_snapshot.len() == 0
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}
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pub fn buffer_rows(&self, start_row: u32) -> DisplayBufferRows {
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self.block_snapshot.buffer_rows(start_row)
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}
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pub fn max_buffer_row(&self) -> u32 {
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self.buffer_snapshot.max_buffer_row()
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}
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pub fn prev_line_boundary(&self, mut point: Point) -> (Point, DisplayPoint) {
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loop {
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let mut inlay_point = self.inlay_snapshot.to_inlay_point(point);
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let mut fold_point = self.fold_snapshot.to_fold_point(inlay_point, Bias::Left);
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fold_point.0.column = 0;
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inlay_point = fold_point.to_inlay_point(&self.fold_snapshot);
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point = self.inlay_snapshot.to_buffer_point(inlay_point);
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let mut display_point = self.point_to_display_point(point, Bias::Left);
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*display_point.column_mut() = 0;
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let next_point = self.display_point_to_point(display_point, Bias::Left);
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if next_point == point {
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return (point, display_point);
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}
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point = next_point;
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}
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}
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pub fn next_line_boundary(&self, mut point: Point) -> (Point, DisplayPoint) {
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loop {
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let mut inlay_point = self.inlay_snapshot.to_inlay_point(point);
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let mut fold_point = self.fold_snapshot.to_fold_point(inlay_point, Bias::Right);
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fold_point.0.column = self.fold_snapshot.line_len(fold_point.row());
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inlay_point = fold_point.to_inlay_point(&self.fold_snapshot);
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point = self.inlay_snapshot.to_buffer_point(inlay_point);
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let mut display_point = self.point_to_display_point(point, Bias::Right);
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*display_point.column_mut() = self.line_len(display_point.row());
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let next_point = self.display_point_to_point(display_point, Bias::Right);
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if next_point == point {
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return (point, display_point);
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}
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point = next_point;
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}
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}
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pub fn expand_to_line(&self, range: Range<Point>) -> Range<Point> {
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let mut new_start = self.prev_line_boundary(range.start).0;
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let mut new_end = self.next_line_boundary(range.end).0;
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if new_start.row == range.start.row && new_end.row == range.end.row {
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if new_end.row < self.buffer_snapshot.max_point().row {
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new_end.row += 1;
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new_end.column = 0;
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} else if new_start.row > 0 {
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new_start.row -= 1;
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new_start.column = self.buffer_snapshot.line_len(new_start.row);
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}
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}
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new_start..new_end
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}
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fn point_to_display_point(&self, point: Point, bias: Bias) -> DisplayPoint {
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let inlay_point = self.inlay_snapshot.to_inlay_point(point);
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let fold_point = self.fold_snapshot.to_fold_point(inlay_point, bias);
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let tab_point = self.tab_snapshot.to_tab_point(fold_point);
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let wrap_point = self.wrap_snapshot.tab_point_to_wrap_point(tab_point);
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let block_point = self.block_snapshot.to_block_point(wrap_point);
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DisplayPoint(block_point)
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}
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fn display_point_to_point(&self, point: DisplayPoint, bias: Bias) -> Point {
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let block_point = point.0;
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let wrap_point = self.block_snapshot.to_wrap_point(block_point);
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let tab_point = self.wrap_snapshot.to_tab_point(wrap_point);
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let fold_point = self.tab_snapshot.to_fold_point(tab_point, bias).0;
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let inlay_point = fold_point.to_inlay_point(&self.fold_snapshot);
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self.inlay_snapshot.to_buffer_point(inlay_point)
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}
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pub fn max_point(&self) -> DisplayPoint {
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DisplayPoint(self.block_snapshot.max_point())
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}
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/// Returns text chunks starting at the given display row until the end of the file
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pub fn text_chunks(&self, display_row: u32) -> impl Iterator<Item = &str> {
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self.block_snapshot
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.chunks(
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display_row..self.max_point().row() + 1,
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false,
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None,
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None,
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None,
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)
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.map(|h| h.text)
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}
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/// Returns text chunks starting at the end of the given display row in reverse until the start of the file
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pub fn reverse_text_chunks(&self, display_row: u32) -> impl Iterator<Item = &str> {
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(0..=display_row).into_iter().rev().flat_map(|row| {
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self.block_snapshot
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.chunks(row..row + 1, false, None, None, None)
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.map(|h| h.text)
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.collect::<Vec<_>>()
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.into_iter()
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||
.rev()
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})
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}
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pub fn chunks(
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||
&self,
|
||
display_rows: Range<u32>,
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||
language_aware: bool,
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hint_highlights: Option<HighlightStyle>,
|
||
suggestion_highlights: Option<HighlightStyle>,
|
||
) -> DisplayChunks<'_> {
|
||
self.block_snapshot.chunks(
|
||
display_rows,
|
||
language_aware,
|
||
Some(&self.text_highlights),
|
||
hint_highlights,
|
||
suggestion_highlights,
|
||
)
|
||
}
|
||
|
||
pub fn chars_at(
|
||
&self,
|
||
mut point: DisplayPoint,
|
||
) -> impl Iterator<Item = (char, DisplayPoint)> + '_ {
|
||
point = DisplayPoint(self.block_snapshot.clip_point(point.0, Bias::Left));
|
||
self.text_chunks(point.row())
|
||
.flat_map(str::chars)
|
||
.skip_while({
|
||
let mut column = 0;
|
||
move |char| {
|
||
let at_point = column >= point.column();
|
||
column += char.len_utf8() as u32;
|
||
!at_point
|
||
}
|
||
})
|
||
.map(move |ch| {
|
||
let result = (ch, point);
|
||
if ch == '\n' {
|
||
*point.row_mut() += 1;
|
||
*point.column_mut() = 0;
|
||
} else {
|
||
*point.column_mut() += ch.len_utf8() as u32;
|
||
}
|
||
result
|
||
})
|
||
}
|
||
|
||
pub fn reverse_chars_at(
|
||
&self,
|
||
mut point: DisplayPoint,
|
||
) -> impl Iterator<Item = (char, DisplayPoint)> + '_ {
|
||
point = DisplayPoint(self.block_snapshot.clip_point(point.0, Bias::Left));
|
||
self.reverse_text_chunks(point.row())
|
||
.flat_map(|chunk| chunk.chars().rev())
|
||
.skip_while({
|
||
let mut column = self.line_len(point.row());
|
||
if self.max_point().row() > point.row() {
|
||
column += 1;
|
||
}
|
||
|
||
move |char| {
|
||
let at_point = column <= point.column();
|
||
column = column.saturating_sub(char.len_utf8() as u32);
|
||
!at_point
|
||
}
|
||
})
|
||
.map(move |ch| {
|
||
if ch == '\n' {
|
||
*point.row_mut() -= 1;
|
||
*point.column_mut() = self.line_len(point.row());
|
||
} else {
|
||
*point.column_mut() = point.column().saturating_sub(ch.len_utf8() as u32);
|
||
}
|
||
(ch, point)
|
||
})
|
||
}
|
||
|
||
/// Returns an iterator of the start positions of the occurrences of `target` in the `self` after `from`
|
||
/// Stops if `condition` returns false for any of the character position pairs observed.
|
||
pub fn find_while<'a>(
|
||
&'a self,
|
||
from: DisplayPoint,
|
||
target: &str,
|
||
condition: impl FnMut(char, DisplayPoint) -> bool + 'a,
|
||
) -> impl Iterator<Item = DisplayPoint> + 'a {
|
||
Self::find_internal(self.chars_at(from), target.chars().collect(), condition)
|
||
}
|
||
|
||
/// Returns an iterator of the end positions of the occurrences of `target` in the `self` before `from`
|
||
/// Stops if `condition` returns false for any of the character position pairs observed.
|
||
pub fn reverse_find_while<'a>(
|
||
&'a self,
|
||
from: DisplayPoint,
|
||
target: &str,
|
||
condition: impl FnMut(char, DisplayPoint) -> bool + 'a,
|
||
) -> impl Iterator<Item = DisplayPoint> + 'a {
|
||
Self::find_internal(
|
||
self.reverse_chars_at(from),
|
||
target.chars().rev().collect(),
|
||
condition,
|
||
)
|
||
}
|
||
|
||
fn find_internal<'a>(
|
||
iterator: impl Iterator<Item = (char, DisplayPoint)> + 'a,
|
||
target: Vec<char>,
|
||
mut condition: impl FnMut(char, DisplayPoint) -> bool + 'a,
|
||
) -> impl Iterator<Item = DisplayPoint> + 'a {
|
||
// List of partial matches with the index of the last seen character in target and the starting point of the match
|
||
let mut partial_matches: Vec<(usize, DisplayPoint)> = Vec::new();
|
||
iterator
|
||
.take_while(move |(ch, point)| condition(*ch, *point))
|
||
.filter_map(move |(ch, point)| {
|
||
if Some(&ch) == target.get(0) {
|
||
partial_matches.push((0, point));
|
||
}
|
||
|
||
let mut found = None;
|
||
// Keep partial matches that have the correct next character
|
||
partial_matches.retain_mut(|(match_position, match_start)| {
|
||
if target.get(*match_position) == Some(&ch) {
|
||
*match_position += 1;
|
||
if *match_position == target.len() {
|
||
found = Some(match_start.clone());
|
||
// This match is completed. No need to keep tracking it
|
||
false
|
||
} else {
|
||
true
|
||
}
|
||
} else {
|
||
false
|
||
}
|
||
});
|
||
|
||
found
|
||
})
|
||
}
|
||
|
||
pub fn column_to_chars(&self, display_row: u32, target: u32) -> u32 {
|
||
let mut count = 0;
|
||
let mut column = 0;
|
||
for (c, _) in self.chars_at(DisplayPoint::new(display_row, 0)) {
|
||
if column >= target {
|
||
break;
|
||
}
|
||
count += 1;
|
||
column += c.len_utf8() as u32;
|
||
}
|
||
count
|
||
}
|
||
|
||
pub fn column_from_chars(&self, display_row: u32, char_count: u32) -> u32 {
|
||
let mut column = 0;
|
||
|
||
for (count, (c, _)) in self.chars_at(DisplayPoint::new(display_row, 0)).enumerate() {
|
||
if c == '\n' || count >= char_count as usize {
|
||
break;
|
||
}
|
||
column += c.len_utf8() as u32;
|
||
}
|
||
|
||
column
|
||
}
|
||
|
||
pub fn clip_point(&self, point: DisplayPoint, bias: Bias) -> DisplayPoint {
|
||
let mut clipped = self.block_snapshot.clip_point(point.0, bias);
|
||
if self.clip_at_line_ends {
|
||
clipped = self.clip_at_line_end(DisplayPoint(clipped)).0
|
||
}
|
||
DisplayPoint(clipped)
|
||
}
|
||
|
||
pub fn clip_at_line_end(&self, point: DisplayPoint) -> DisplayPoint {
|
||
let mut point = point.0;
|
||
if point.column == self.line_len(point.row) {
|
||
point.column = point.column.saturating_sub(1);
|
||
point = self.block_snapshot.clip_point(point, Bias::Left);
|
||
}
|
||
DisplayPoint(point)
|
||
}
|
||
|
||
pub fn folds_in_range<T>(&self, range: Range<T>) -> impl Iterator<Item = &Range<Anchor>>
|
||
where
|
||
T: ToOffset,
|
||
{
|
||
self.fold_snapshot.folds_in_range(range)
|
||
}
|
||
|
||
pub fn blocks_in_range(
|
||
&self,
|
||
rows: Range<u32>,
|
||
) -> impl Iterator<Item = (u32, &TransformBlock)> {
|
||
self.block_snapshot.blocks_in_range(rows)
|
||
}
|
||
|
||
pub fn intersects_fold<T: ToOffset>(&self, offset: T) -> bool {
|
||
self.fold_snapshot.intersects_fold(offset)
|
||
}
|
||
|
||
pub fn is_line_folded(&self, buffer_row: u32) -> bool {
|
||
self.fold_snapshot.is_line_folded(buffer_row)
|
||
}
|
||
|
||
pub fn is_block_line(&self, display_row: u32) -> bool {
|
||
self.block_snapshot.is_block_line(display_row)
|
||
}
|
||
|
||
pub fn soft_wrap_indent(&self, display_row: u32) -> Option<u32> {
|
||
let wrap_row = self
|
||
.block_snapshot
|
||
.to_wrap_point(BlockPoint::new(display_row, 0))
|
||
.row();
|
||
self.wrap_snapshot.soft_wrap_indent(wrap_row)
|
||
}
|
||
|
||
pub fn text(&self) -> String {
|
||
self.text_chunks(0).collect()
|
||
}
|
||
|
||
pub fn line(&self, display_row: u32) -> String {
|
||
let mut result = String::new();
|
||
for chunk in self.text_chunks(display_row) {
|
||
if let Some(ix) = chunk.find('\n') {
|
||
result.push_str(&chunk[0..ix]);
|
||
break;
|
||
} else {
|
||
result.push_str(chunk);
|
||
}
|
||
}
|
||
result
|
||
}
|
||
|
||
pub fn line_indent(&self, display_row: u32) -> (u32, bool) {
|
||
let mut indent = 0;
|
||
let mut is_blank = true;
|
||
for (c, _) in self.chars_at(DisplayPoint::new(display_row, 0)) {
|
||
if c == ' ' {
|
||
indent += 1;
|
||
} else {
|
||
is_blank = c == '\n';
|
||
break;
|
||
}
|
||
}
|
||
(indent, is_blank)
|
||
}
|
||
|
||
pub fn line_indent_for_buffer_row(&self, buffer_row: u32) -> (u32, bool) {
|
||
let (buffer, range) = self
|
||
.buffer_snapshot
|
||
.buffer_line_for_row(buffer_row)
|
||
.unwrap();
|
||
|
||
let mut indent_size = 0;
|
||
let mut is_blank = false;
|
||
for c in buffer.chars_at(Point::new(range.start.row, 0)) {
|
||
if c == ' ' || c == '\t' {
|
||
indent_size += 1;
|
||
} else {
|
||
if c == '\n' {
|
||
is_blank = true;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
(indent_size, is_blank)
|
||
}
|
||
|
||
pub fn line_len(&self, row: u32) -> u32 {
|
||
self.block_snapshot.line_len(row)
|
||
}
|
||
|
||
pub fn longest_row(&self) -> u32 {
|
||
self.block_snapshot.longest_row()
|
||
}
|
||
|
||
pub fn fold_for_line(self: &Self, buffer_row: u32) -> Option<FoldStatus> {
|
||
if self.is_line_folded(buffer_row) {
|
||
Some(FoldStatus::Folded)
|
||
} else if self.is_foldable(buffer_row) {
|
||
Some(FoldStatus::Foldable)
|
||
} else {
|
||
None
|
||
}
|
||
}
|
||
|
||
pub fn is_foldable(self: &Self, buffer_row: u32) -> bool {
|
||
let max_row = self.buffer_snapshot.max_buffer_row();
|
||
if buffer_row >= max_row {
|
||
return false;
|
||
}
|
||
|
||
let (indent_size, is_blank) = self.line_indent_for_buffer_row(buffer_row);
|
||
if is_blank {
|
||
return false;
|
||
}
|
||
|
||
for next_row in (buffer_row + 1)..=max_row {
|
||
let (next_indent_size, next_line_is_blank) = self.line_indent_for_buffer_row(next_row);
|
||
if next_indent_size > indent_size {
|
||
return true;
|
||
} else if !next_line_is_blank {
|
||
break;
|
||
}
|
||
}
|
||
|
||
false
|
||
}
|
||
|
||
pub fn foldable_range(self: &Self, buffer_row: u32) -> Option<Range<Point>> {
|
||
let start = Point::new(buffer_row, self.buffer_snapshot.line_len(buffer_row));
|
||
if self.is_foldable(start.row) && !self.is_line_folded(start.row) {
|
||
let (start_indent, _) = self.line_indent_for_buffer_row(buffer_row);
|
||
let max_point = self.buffer_snapshot.max_point();
|
||
let mut end = None;
|
||
|
||
for row in (buffer_row + 1)..=max_point.row {
|
||
let (indent, is_blank) = self.line_indent_for_buffer_row(row);
|
||
if !is_blank && indent <= start_indent {
|
||
let prev_row = row - 1;
|
||
end = Some(Point::new(
|
||
prev_row,
|
||
self.buffer_snapshot.line_len(prev_row),
|
||
));
|
||
break;
|
||
}
|
||
}
|
||
let end = end.unwrap_or(max_point);
|
||
Some(start..end)
|
||
} else {
|
||
None
|
||
}
|
||
}
|
||
|
||
#[cfg(any(test, feature = "test-support"))]
|
||
pub fn highlight_ranges<Tag: ?Sized + 'static>(
|
||
&self,
|
||
) -> Option<Arc<(HighlightStyle, Vec<Range<Anchor>>)>> {
|
||
let type_id = TypeId::of::<Tag>();
|
||
self.text_highlights.get(&Some(type_id)).cloned()
|
||
}
|
||
}
|
||
|
||
#[derive(Copy, Clone, Default, Eq, Ord, PartialOrd, PartialEq)]
|
||
pub struct DisplayPoint(BlockPoint);
|
||
|
||
impl Debug for DisplayPoint {
|
||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||
f.write_fmt(format_args!(
|
||
"DisplayPoint({}, {})",
|
||
self.row(),
|
||
self.column()
|
||
))
|
||
}
|
||
}
|
||
|
||
impl DisplayPoint {
|
||
pub fn new(row: u32, column: u32) -> Self {
|
||
Self(BlockPoint(Point::new(row, column)))
|
||
}
|
||
|
||
pub fn zero() -> Self {
|
||
Self::new(0, 0)
|
||
}
|
||
|
||
pub fn is_zero(&self) -> bool {
|
||
self.0.is_zero()
|
||
}
|
||
|
||
pub fn row(self) -> u32 {
|
||
self.0.row
|
||
}
|
||
|
||
pub fn column(self) -> u32 {
|
||
self.0.column
|
||
}
|
||
|
||
pub fn row_mut(&mut self) -> &mut u32 {
|
||
&mut self.0.row
|
||
}
|
||
|
||
pub fn column_mut(&mut self) -> &mut u32 {
|
||
&mut self.0.column
|
||
}
|
||
|
||
pub fn to_point(self, map: &DisplaySnapshot) -> Point {
|
||
map.display_point_to_point(self, Bias::Left)
|
||
}
|
||
|
||
pub fn to_offset(self, map: &DisplaySnapshot, bias: Bias) -> usize {
|
||
let wrap_point = map.block_snapshot.to_wrap_point(self.0);
|
||
let tab_point = map.wrap_snapshot.to_tab_point(wrap_point);
|
||
let fold_point = map.tab_snapshot.to_fold_point(tab_point, bias).0;
|
||
let inlay_point = fold_point.to_inlay_point(&map.fold_snapshot);
|
||
map.inlay_snapshot
|
||
.to_buffer_offset(map.inlay_snapshot.to_offset(inlay_point))
|
||
}
|
||
}
|
||
|
||
impl ToDisplayPoint for usize {
|
||
fn to_display_point(&self, map: &DisplaySnapshot) -> DisplayPoint {
|
||
map.point_to_display_point(self.to_point(&map.buffer_snapshot), Bias::Left)
|
||
}
|
||
}
|
||
|
||
impl ToDisplayPoint for OffsetUtf16 {
|
||
fn to_display_point(&self, map: &DisplaySnapshot) -> DisplayPoint {
|
||
self.to_offset(&map.buffer_snapshot).to_display_point(map)
|
||
}
|
||
}
|
||
|
||
impl ToDisplayPoint for Point {
|
||
fn to_display_point(&self, map: &DisplaySnapshot) -> DisplayPoint {
|
||
map.point_to_display_point(*self, Bias::Left)
|
||
}
|
||
}
|
||
|
||
impl ToDisplayPoint for Anchor {
|
||
fn to_display_point(&self, map: &DisplaySnapshot) -> DisplayPoint {
|
||
self.to_point(&map.buffer_snapshot).to_display_point(map)
|
||
}
|
||
}
|
||
|
||
pub fn next_rows(display_row: u32, display_map: &DisplaySnapshot) -> impl Iterator<Item = u32> {
|
||
let max_row = display_map.max_point().row();
|
||
let start_row = display_row + 1;
|
||
let mut current = None;
|
||
std::iter::from_fn(move || {
|
||
if current == None {
|
||
current = Some(start_row);
|
||
} else {
|
||
current = Some(current.unwrap() + 1)
|
||
}
|
||
if current.unwrap() > max_row {
|
||
None
|
||
} else {
|
||
current
|
||
}
|
||
})
|
||
}
|
||
|
||
#[cfg(test)]
|
||
pub mod tests {
|
||
use super::*;
|
||
use crate::{movement, test::marked_display_snapshot};
|
||
use gpui::{color::Color, elements::*, test::observe, AppContext};
|
||
use language::{
|
||
language_settings::{AllLanguageSettings, AllLanguageSettingsContent},
|
||
Buffer, Language, LanguageConfig, SelectionGoal,
|
||
};
|
||
use rand::{prelude::*, Rng};
|
||
use settings::SettingsStore;
|
||
use smol::stream::StreamExt;
|
||
use std::{env, sync::Arc};
|
||
use theme::SyntaxTheme;
|
||
use util::test::{marked_text_offsets, marked_text_ranges, sample_text};
|
||
use Bias::*;
|
||
|
||
#[gpui::test(iterations = 100)]
|
||
async fn test_random_display_map(cx: &mut gpui::TestAppContext, mut rng: StdRng) {
|
||
cx.foreground().set_block_on_ticks(0..=50);
|
||
cx.foreground().forbid_parking();
|
||
let operations = env::var("OPERATIONS")
|
||
.map(|i| i.parse().expect("invalid `OPERATIONS` variable"))
|
||
.unwrap_or(10);
|
||
|
||
let font_cache = cx.font_cache().clone();
|
||
let mut tab_size = rng.gen_range(1..=4);
|
||
let buffer_start_excerpt_header_height = rng.gen_range(1..=5);
|
||
let excerpt_header_height = rng.gen_range(1..=5);
|
||
let family_id = font_cache
|
||
.load_family(&["Helvetica"], &Default::default())
|
||
.unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 14.0;
|
||
let max_wrap_width = 300.0;
|
||
let mut wrap_width = if rng.gen_bool(0.1) {
|
||
None
|
||
} else {
|
||
Some(rng.gen_range(0.0..=max_wrap_width))
|
||
};
|
||
|
||
log::info!("tab size: {}", tab_size);
|
||
log::info!("wrap width: {:?}", wrap_width);
|
||
|
||
cx.update(|cx| {
|
||
init_test(cx, |s| s.defaults.tab_size = NonZeroU32::new(tab_size));
|
||
});
|
||
|
||
let buffer = cx.update(|cx| {
|
||
if rng.gen() {
|
||
let len = rng.gen_range(0..10);
|
||
let text = util::RandomCharIter::new(&mut rng)
|
||
.take(len)
|
||
.collect::<String>();
|
||
MultiBuffer::build_simple(&text, cx)
|
||
} else {
|
||
MultiBuffer::build_random(&mut rng, cx)
|
||
}
|
||
});
|
||
|
||
let map = cx.add_model(|cx| {
|
||
DisplayMap::new(
|
||
buffer.clone(),
|
||
font_id,
|
||
font_size,
|
||
wrap_width,
|
||
buffer_start_excerpt_header_height,
|
||
excerpt_header_height,
|
||
cx,
|
||
)
|
||
});
|
||
let mut notifications = observe(&map, cx);
|
||
let mut fold_count = 0;
|
||
let mut blocks = Vec::new();
|
||
|
||
let snapshot = map.update(cx, |map, cx| map.snapshot(cx));
|
||
log::info!("buffer text: {:?}", snapshot.buffer_snapshot.text());
|
||
log::info!("fold text: {:?}", snapshot.fold_snapshot.text());
|
||
log::info!("tab text: {:?}", snapshot.tab_snapshot.text());
|
||
log::info!("wrap text: {:?}", snapshot.wrap_snapshot.text());
|
||
log::info!("block text: {:?}", snapshot.block_snapshot.text());
|
||
log::info!("display text: {:?}", snapshot.text());
|
||
|
||
for _i in 0..operations {
|
||
match rng.gen_range(0..100) {
|
||
0..=19 => {
|
||
wrap_width = if rng.gen_bool(0.2) {
|
||
None
|
||
} else {
|
||
Some(rng.gen_range(0.0..=max_wrap_width))
|
||
};
|
||
log::info!("setting wrap width to {:?}", wrap_width);
|
||
map.update(cx, |map, cx| map.set_wrap_width(wrap_width, cx));
|
||
}
|
||
20..=29 => {
|
||
let mut tab_sizes = vec![1, 2, 3, 4];
|
||
tab_sizes.remove((tab_size - 1) as usize);
|
||
tab_size = *tab_sizes.choose(&mut rng).unwrap();
|
||
log::info!("setting tab size to {:?}", tab_size);
|
||
cx.update(|cx| {
|
||
cx.update_global::<SettingsStore, _, _>(|store, cx| {
|
||
store.update_user_settings::<AllLanguageSettings>(cx, |s| {
|
||
s.defaults.tab_size = NonZeroU32::new(tab_size);
|
||
});
|
||
});
|
||
});
|
||
}
|
||
30..=44 => {
|
||
map.update(cx, |map, cx| {
|
||
if rng.gen() || blocks.is_empty() {
|
||
let buffer = map.snapshot(cx).buffer_snapshot;
|
||
let block_properties = (0..rng.gen_range(1..=1))
|
||
.map(|_| {
|
||
let position =
|
||
buffer.anchor_after(buffer.clip_offset(
|
||
rng.gen_range(0..=buffer.len()),
|
||
Bias::Left,
|
||
));
|
||
|
||
let disposition = if rng.gen() {
|
||
BlockDisposition::Above
|
||
} else {
|
||
BlockDisposition::Below
|
||
};
|
||
let height = rng.gen_range(1..5);
|
||
log::info!(
|
||
"inserting block {:?} {:?} with height {}",
|
||
disposition,
|
||
position.to_point(&buffer),
|
||
height
|
||
);
|
||
BlockProperties {
|
||
style: BlockStyle::Fixed,
|
||
position,
|
||
height,
|
||
disposition,
|
||
render: Arc::new(|_| Empty::new().into_any()),
|
||
}
|
||
})
|
||
.collect::<Vec<_>>();
|
||
blocks.extend(map.insert_blocks(block_properties, cx));
|
||
} else {
|
||
blocks.shuffle(&mut rng);
|
||
let remove_count = rng.gen_range(1..=4.min(blocks.len()));
|
||
let block_ids_to_remove = (0..remove_count)
|
||
.map(|_| blocks.remove(rng.gen_range(0..blocks.len())))
|
||
.collect();
|
||
log::info!("removing block ids {:?}", block_ids_to_remove);
|
||
map.remove_blocks(block_ids_to_remove, cx);
|
||
}
|
||
});
|
||
}
|
||
45..=79 => {
|
||
let mut ranges = Vec::new();
|
||
for _ in 0..rng.gen_range(1..=3) {
|
||
buffer.read_with(cx, |buffer, cx| {
|
||
let buffer = buffer.read(cx);
|
||
let end = buffer.clip_offset(rng.gen_range(0..=buffer.len()), Right);
|
||
let start = buffer.clip_offset(rng.gen_range(0..=end), Left);
|
||
ranges.push(start..end);
|
||
});
|
||
}
|
||
|
||
if rng.gen() && fold_count > 0 {
|
||
log::info!("unfolding ranges: {:?}", ranges);
|
||
map.update(cx, |map, cx| {
|
||
map.unfold(ranges, true, cx);
|
||
});
|
||
} else {
|
||
log::info!("folding ranges: {:?}", ranges);
|
||
map.update(cx, |map, cx| {
|
||
map.fold(ranges, cx);
|
||
});
|
||
}
|
||
}
|
||
_ => {
|
||
buffer.update(cx, |buffer, cx| buffer.randomly_mutate(&mut rng, 5, cx));
|
||
}
|
||
}
|
||
|
||
if map.read_with(cx, |map, cx| map.is_rewrapping(cx)) {
|
||
notifications.next().await.unwrap();
|
||
}
|
||
|
||
let snapshot = map.update(cx, |map, cx| map.snapshot(cx));
|
||
fold_count = snapshot.fold_count();
|
||
log::info!("buffer text: {:?}", snapshot.buffer_snapshot.text());
|
||
log::info!("fold text: {:?}", snapshot.fold_snapshot.text());
|
||
log::info!("tab text: {:?}", snapshot.tab_snapshot.text());
|
||
log::info!("wrap text: {:?}", snapshot.wrap_snapshot.text());
|
||
log::info!("block text: {:?}", snapshot.block_snapshot.text());
|
||
log::info!("display text: {:?}", snapshot.text());
|
||
|
||
// Line boundaries
|
||
let buffer = &snapshot.buffer_snapshot;
|
||
for _ in 0..5 {
|
||
let row = rng.gen_range(0..=buffer.max_point().row);
|
||
let column = rng.gen_range(0..=buffer.line_len(row));
|
||
let point = buffer.clip_point(Point::new(row, column), Left);
|
||
|
||
let (prev_buffer_bound, prev_display_bound) = snapshot.prev_line_boundary(point);
|
||
let (next_buffer_bound, next_display_bound) = snapshot.next_line_boundary(point);
|
||
|
||
assert!(prev_buffer_bound <= point);
|
||
assert!(next_buffer_bound >= point);
|
||
assert_eq!(prev_buffer_bound.column, 0);
|
||
assert_eq!(prev_display_bound.column(), 0);
|
||
if next_buffer_bound < buffer.max_point() {
|
||
assert_eq!(buffer.chars_at(next_buffer_bound).next(), Some('\n'));
|
||
}
|
||
|
||
assert_eq!(
|
||
prev_display_bound,
|
||
prev_buffer_bound.to_display_point(&snapshot),
|
||
"row boundary before {:?}. reported buffer row boundary: {:?}",
|
||
point,
|
||
prev_buffer_bound
|
||
);
|
||
assert_eq!(
|
||
next_display_bound,
|
||
next_buffer_bound.to_display_point(&snapshot),
|
||
"display row boundary after {:?}. reported buffer row boundary: {:?}",
|
||
point,
|
||
next_buffer_bound
|
||
);
|
||
assert_eq!(
|
||
prev_buffer_bound,
|
||
prev_display_bound.to_point(&snapshot),
|
||
"row boundary before {:?}. reported display row boundary: {:?}",
|
||
point,
|
||
prev_display_bound
|
||
);
|
||
assert_eq!(
|
||
next_buffer_bound,
|
||
next_display_bound.to_point(&snapshot),
|
||
"row boundary after {:?}. reported display row boundary: {:?}",
|
||
point,
|
||
next_display_bound
|
||
);
|
||
}
|
||
|
||
// Movement
|
||
let min_point = snapshot.clip_point(DisplayPoint::new(0, 0), Left);
|
||
let max_point = snapshot.clip_point(snapshot.max_point(), Right);
|
||
for _ in 0..5 {
|
||
let row = rng.gen_range(0..=snapshot.max_point().row());
|
||
let column = rng.gen_range(0..=snapshot.line_len(row));
|
||
let point = snapshot.clip_point(DisplayPoint::new(row, column), Left);
|
||
|
||
log::info!("Moving from point {:?}", point);
|
||
|
||
let moved_right = movement::right(&snapshot, point);
|
||
log::info!("Right {:?}", moved_right);
|
||
if point < max_point {
|
||
assert!(moved_right > point);
|
||
if point.column() == snapshot.line_len(point.row())
|
||
|| snapshot.soft_wrap_indent(point.row()).is_some()
|
||
&& point.column() == snapshot.line_len(point.row()) - 1
|
||
{
|
||
assert!(moved_right.row() > point.row());
|
||
}
|
||
} else {
|
||
assert_eq!(moved_right, point);
|
||
}
|
||
|
||
let moved_left = movement::left(&snapshot, point);
|
||
log::info!("Left {:?}", moved_left);
|
||
if point > min_point {
|
||
assert!(moved_left < point);
|
||
if point.column() == 0 {
|
||
assert!(moved_left.row() < point.row());
|
||
}
|
||
} else {
|
||
assert_eq!(moved_left, point);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
#[gpui::test(retries = 5)]
|
||
fn test_soft_wraps(cx: &mut AppContext) {
|
||
cx.foreground().set_block_on_ticks(usize::MAX..=usize::MAX);
|
||
init_test(cx, |_| {});
|
||
|
||
let font_cache = cx.font_cache();
|
||
|
||
let family_id = font_cache
|
||
.load_family(&["Helvetica"], &Default::default())
|
||
.unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 12.0;
|
||
let wrap_width = Some(64.);
|
||
|
||
let text = "one two three four five\nsix seven eight";
|
||
let buffer = MultiBuffer::build_simple(text, cx);
|
||
let map = cx.add_model(|cx| {
|
||
DisplayMap::new(buffer.clone(), font_id, font_size, wrap_width, 1, 1, cx)
|
||
});
|
||
|
||
let snapshot = map.update(cx, |map, cx| map.snapshot(cx));
|
||
assert_eq!(
|
||
snapshot.text_chunks(0).collect::<String>(),
|
||
"one two \nthree four \nfive\nsix seven \neight"
|
||
);
|
||
assert_eq!(
|
||
snapshot.clip_point(DisplayPoint::new(0, 8), Bias::Left),
|
||
DisplayPoint::new(0, 7)
|
||
);
|
||
assert_eq!(
|
||
snapshot.clip_point(DisplayPoint::new(0, 8), Bias::Right),
|
||
DisplayPoint::new(1, 0)
|
||
);
|
||
assert_eq!(
|
||
movement::right(&snapshot, DisplayPoint::new(0, 7)),
|
||
DisplayPoint::new(1, 0)
|
||
);
|
||
assert_eq!(
|
||
movement::left(&snapshot, DisplayPoint::new(1, 0)),
|
||
DisplayPoint::new(0, 7)
|
||
);
|
||
assert_eq!(
|
||
movement::up(
|
||
&snapshot,
|
||
DisplayPoint::new(1, 10),
|
||
SelectionGoal::None,
|
||
false
|
||
),
|
||
(DisplayPoint::new(0, 7), SelectionGoal::Column(10))
|
||
);
|
||
assert_eq!(
|
||
movement::down(
|
||
&snapshot,
|
||
DisplayPoint::new(0, 7),
|
||
SelectionGoal::Column(10),
|
||
false
|
||
),
|
||
(DisplayPoint::new(1, 10), SelectionGoal::Column(10))
|
||
);
|
||
assert_eq!(
|
||
movement::down(
|
||
&snapshot,
|
||
DisplayPoint::new(1, 10),
|
||
SelectionGoal::Column(10),
|
||
false
|
||
),
|
||
(DisplayPoint::new(2, 4), SelectionGoal::Column(10))
|
||
);
|
||
|
||
let ix = snapshot.buffer_snapshot.text().find("seven").unwrap();
|
||
buffer.update(cx, |buffer, cx| {
|
||
buffer.edit([(ix..ix, "and ")], None, cx);
|
||
});
|
||
|
||
let snapshot = map.update(cx, |map, cx| map.snapshot(cx));
|
||
assert_eq!(
|
||
snapshot.text_chunks(1).collect::<String>(),
|
||
"three four \nfive\nsix and \nseven eight"
|
||
);
|
||
|
||
// Re-wrap on font size changes
|
||
map.update(cx, |map, cx| map.set_font(font_id, font_size + 3., cx));
|
||
|
||
let snapshot = map.update(cx, |map, cx| map.snapshot(cx));
|
||
assert_eq!(
|
||
snapshot.text_chunks(1).collect::<String>(),
|
||
"three \nfour five\nsix and \nseven \neight"
|
||
)
|
||
}
|
||
|
||
#[gpui::test]
|
||
fn test_text_chunks(cx: &mut gpui::AppContext) {
|
||
init_test(cx, |_| {});
|
||
|
||
let text = sample_text(6, 6, 'a');
|
||
let buffer = MultiBuffer::build_simple(&text, cx);
|
||
let family_id = cx
|
||
.font_cache()
|
||
.load_family(&["Helvetica"], &Default::default())
|
||
.unwrap();
|
||
let font_id = cx
|
||
.font_cache()
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 14.0;
|
||
let map =
|
||
cx.add_model(|cx| DisplayMap::new(buffer.clone(), font_id, font_size, None, 1, 1, cx));
|
||
|
||
buffer.update(cx, |buffer, cx| {
|
||
buffer.edit(
|
||
vec![
|
||
(Point::new(1, 0)..Point::new(1, 0), "\t"),
|
||
(Point::new(1, 1)..Point::new(1, 1), "\t"),
|
||
(Point::new(2, 1)..Point::new(2, 1), "\t"),
|
||
],
|
||
None,
|
||
cx,
|
||
)
|
||
});
|
||
|
||
assert_eq!(
|
||
map.update(cx, |map, cx| map.snapshot(cx))
|
||
.text_chunks(1)
|
||
.collect::<String>()
|
||
.lines()
|
||
.next(),
|
||
Some(" b bbbbb")
|
||
);
|
||
assert_eq!(
|
||
map.update(cx, |map, cx| map.snapshot(cx))
|
||
.text_chunks(2)
|
||
.collect::<String>()
|
||
.lines()
|
||
.next(),
|
||
Some("c ccccc")
|
||
);
|
||
}
|
||
|
||
#[gpui::test]
|
||
async fn test_chunks(cx: &mut gpui::TestAppContext) {
|
||
use unindent::Unindent as _;
|
||
|
||
let text = r#"
|
||
fn outer() {}
|
||
|
||
mod module {
|
||
fn inner() {}
|
||
}"#
|
||
.unindent();
|
||
|
||
let theme = SyntaxTheme::new(vec![
|
||
("mod.body".to_string(), Color::red().into()),
|
||
("fn.name".to_string(), Color::blue().into()),
|
||
]);
|
||
let language = Arc::new(
|
||
Language::new(
|
||
LanguageConfig {
|
||
name: "Test".into(),
|
||
path_suffixes: vec![".test".to_string()],
|
||
..Default::default()
|
||
},
|
||
Some(tree_sitter_rust::language()),
|
||
)
|
||
.with_highlights_query(
|
||
r#"
|
||
(mod_item name: (identifier) body: _ @mod.body)
|
||
(function_item name: (identifier) @fn.name)
|
||
"#,
|
||
)
|
||
.unwrap(),
|
||
);
|
||
language.set_theme(&theme);
|
||
|
||
cx.update(|cx| init_test(cx, |s| s.defaults.tab_size = Some(2.try_into().unwrap())));
|
||
|
||
let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
|
||
buffer.condition(cx, |buf, _| !buf.is_parsing()).await;
|
||
let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
|
||
|
||
let font_cache = cx.font_cache();
|
||
let family_id = font_cache
|
||
.load_family(&["Helvetica"], &Default::default())
|
||
.unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 14.0;
|
||
|
||
let map = cx.add_model(|cx| DisplayMap::new(buffer, font_id, font_size, None, 1, 1, cx));
|
||
assert_eq!(
|
||
cx.update(|cx| syntax_chunks(0..5, &map, &theme, cx)),
|
||
vec![
|
||
("fn ".to_string(), None),
|
||
("outer".to_string(), Some(Color::blue())),
|
||
("() {}\n\nmod module ".to_string(), None),
|
||
("{\n fn ".to_string(), Some(Color::red())),
|
||
("inner".to_string(), Some(Color::blue())),
|
||
("() {}\n}".to_string(), Some(Color::red())),
|
||
]
|
||
);
|
||
assert_eq!(
|
||
cx.update(|cx| syntax_chunks(3..5, &map, &theme, cx)),
|
||
vec![
|
||
(" fn ".to_string(), Some(Color::red())),
|
||
("inner".to_string(), Some(Color::blue())),
|
||
("() {}\n}".to_string(), Some(Color::red())),
|
||
]
|
||
);
|
||
|
||
map.update(cx, |map, cx| {
|
||
map.fold(vec![Point::new(0, 6)..Point::new(3, 2)], cx)
|
||
});
|
||
assert_eq!(
|
||
cx.update(|cx| syntax_chunks(0..2, &map, &theme, cx)),
|
||
vec![
|
||
("fn ".to_string(), None),
|
||
("out".to_string(), Some(Color::blue())),
|
||
("⋯".to_string(), None),
|
||
(" fn ".to_string(), Some(Color::red())),
|
||
("inner".to_string(), Some(Color::blue())),
|
||
("() {}\n}".to_string(), Some(Color::red())),
|
||
]
|
||
);
|
||
}
|
||
|
||
#[gpui::test]
|
||
async fn test_chunks_with_soft_wrapping(cx: &mut gpui::TestAppContext) {
|
||
use unindent::Unindent as _;
|
||
|
||
cx.foreground().set_block_on_ticks(usize::MAX..=usize::MAX);
|
||
|
||
let text = r#"
|
||
fn outer() {}
|
||
|
||
mod module {
|
||
fn inner() {}
|
||
}"#
|
||
.unindent();
|
||
|
||
let theme = SyntaxTheme::new(vec![
|
||
("mod.body".to_string(), Color::red().into()),
|
||
("fn.name".to_string(), Color::blue().into()),
|
||
]);
|
||
let language = Arc::new(
|
||
Language::new(
|
||
LanguageConfig {
|
||
name: "Test".into(),
|
||
path_suffixes: vec![".test".to_string()],
|
||
..Default::default()
|
||
},
|
||
Some(tree_sitter_rust::language()),
|
||
)
|
||
.with_highlights_query(
|
||
r#"
|
||
(mod_item name: (identifier) body: _ @mod.body)
|
||
(function_item name: (identifier) @fn.name)
|
||
"#,
|
||
)
|
||
.unwrap(),
|
||
);
|
||
language.set_theme(&theme);
|
||
|
||
cx.update(|cx| init_test(cx, |_| {}));
|
||
|
||
let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
|
||
buffer.condition(cx, |buf, _| !buf.is_parsing()).await;
|
||
let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
|
||
|
||
let font_cache = cx.font_cache();
|
||
|
||
let family_id = font_cache
|
||
.load_family(&["Courier"], &Default::default())
|
||
.unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 16.0;
|
||
|
||
let map =
|
||
cx.add_model(|cx| DisplayMap::new(buffer, font_id, font_size, Some(40.0), 1, 1, cx));
|
||
assert_eq!(
|
||
cx.update(|cx| syntax_chunks(0..5, &map, &theme, cx)),
|
||
[
|
||
("fn \n".to_string(), None),
|
||
("oute\nr".to_string(), Some(Color::blue())),
|
||
("() \n{}\n\n".to_string(), None),
|
||
]
|
||
);
|
||
assert_eq!(
|
||
cx.update(|cx| syntax_chunks(3..5, &map, &theme, cx)),
|
||
[("{}\n\n".to_string(), None)]
|
||
);
|
||
|
||
map.update(cx, |map, cx| {
|
||
map.fold(vec![Point::new(0, 6)..Point::new(3, 2)], cx)
|
||
});
|
||
assert_eq!(
|
||
cx.update(|cx| syntax_chunks(1..4, &map, &theme, cx)),
|
||
[
|
||
("out".to_string(), Some(Color::blue())),
|
||
("⋯\n".to_string(), None),
|
||
(" \nfn ".to_string(), Some(Color::red())),
|
||
("i\n".to_string(), Some(Color::blue()))
|
||
]
|
||
);
|
||
}
|
||
|
||
#[gpui::test]
|
||
async fn test_chunks_with_text_highlights(cx: &mut gpui::TestAppContext) {
|
||
cx.update(|cx| init_test(cx, |_| {}));
|
||
|
||
let theme = SyntaxTheme::new(vec![
|
||
("operator".to_string(), Color::red().into()),
|
||
("string".to_string(), Color::green().into()),
|
||
]);
|
||
let language = Arc::new(
|
||
Language::new(
|
||
LanguageConfig {
|
||
name: "Test".into(),
|
||
path_suffixes: vec![".test".to_string()],
|
||
..Default::default()
|
||
},
|
||
Some(tree_sitter_rust::language()),
|
||
)
|
||
.with_highlights_query(
|
||
r#"
|
||
":" @operator
|
||
(string_literal) @string
|
||
"#,
|
||
)
|
||
.unwrap(),
|
||
);
|
||
language.set_theme(&theme);
|
||
|
||
let (text, highlighted_ranges) = marked_text_ranges(r#"constˇ «a»: B = "c «d»""#, false);
|
||
|
||
let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
|
||
buffer.condition(cx, |buf, _| !buf.is_parsing()).await;
|
||
|
||
let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
|
||
let buffer_snapshot = buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx));
|
||
|
||
let font_cache = cx.font_cache();
|
||
let family_id = font_cache
|
||
.load_family(&["Courier"], &Default::default())
|
||
.unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 16.0;
|
||
let map = cx.add_model(|cx| DisplayMap::new(buffer, font_id, font_size, None, 1, 1, cx));
|
||
|
||
enum MyType {}
|
||
|
||
let style = HighlightStyle {
|
||
color: Some(Color::blue()),
|
||
..Default::default()
|
||
};
|
||
|
||
map.update(cx, |map, _cx| {
|
||
map.highlight_text(
|
||
TypeId::of::<MyType>(),
|
||
highlighted_ranges
|
||
.into_iter()
|
||
.map(|range| {
|
||
buffer_snapshot.anchor_before(range.start)
|
||
..buffer_snapshot.anchor_before(range.end)
|
||
})
|
||
.collect(),
|
||
style,
|
||
);
|
||
});
|
||
|
||
assert_eq!(
|
||
cx.update(|cx| chunks(0..10, &map, &theme, cx)),
|
||
[
|
||
("const ".to_string(), None, None),
|
||
("a".to_string(), None, Some(Color::blue())),
|
||
(":".to_string(), Some(Color::red()), None),
|
||
(" B = ".to_string(), None, None),
|
||
("\"c ".to_string(), Some(Color::green()), None),
|
||
("d".to_string(), Some(Color::green()), Some(Color::blue())),
|
||
("\"".to_string(), Some(Color::green()), None),
|
||
]
|
||
);
|
||
}
|
||
|
||
#[gpui::test]
|
||
fn test_clip_point(cx: &mut gpui::AppContext) {
|
||
init_test(cx, |_| {});
|
||
|
||
fn assert(text: &str, shift_right: bool, bias: Bias, cx: &mut gpui::AppContext) {
|
||
let (unmarked_snapshot, mut markers) = marked_display_snapshot(text, cx);
|
||
|
||
match bias {
|
||
Bias::Left => {
|
||
if shift_right {
|
||
*markers[1].column_mut() += 1;
|
||
}
|
||
|
||
assert_eq!(unmarked_snapshot.clip_point(markers[1], bias), markers[0])
|
||
}
|
||
Bias::Right => {
|
||
if shift_right {
|
||
*markers[0].column_mut() += 1;
|
||
}
|
||
|
||
assert_eq!(unmarked_snapshot.clip_point(markers[0], bias), markers[1])
|
||
}
|
||
};
|
||
}
|
||
|
||
use Bias::{Left, Right};
|
||
assert("ˇˇα", false, Left, cx);
|
||
assert("ˇˇα", true, Left, cx);
|
||
assert("ˇˇα", false, Right, cx);
|
||
assert("ˇαˇ", true, Right, cx);
|
||
assert("ˇˇ✋", false, Left, cx);
|
||
assert("ˇˇ✋", true, Left, cx);
|
||
assert("ˇˇ✋", false, Right, cx);
|
||
assert("ˇ✋ˇ", true, Right, cx);
|
||
assert("ˇˇ🍐", false, Left, cx);
|
||
assert("ˇˇ🍐", true, Left, cx);
|
||
assert("ˇˇ🍐", false, Right, cx);
|
||
assert("ˇ🍐ˇ", true, Right, cx);
|
||
assert("ˇˇ\t", false, Left, cx);
|
||
assert("ˇˇ\t", true, Left, cx);
|
||
assert("ˇˇ\t", false, Right, cx);
|
||
assert("ˇ\tˇ", true, Right, cx);
|
||
assert(" ˇˇ\t", false, Left, cx);
|
||
assert(" ˇˇ\t", true, Left, cx);
|
||
assert(" ˇˇ\t", false, Right, cx);
|
||
assert(" ˇ\tˇ", true, Right, cx);
|
||
assert(" ˇˇ\t", false, Left, cx);
|
||
assert(" ˇˇ\t", false, Right, cx);
|
||
}
|
||
|
||
#[gpui::test]
|
||
fn test_clip_at_line_ends(cx: &mut gpui::AppContext) {
|
||
init_test(cx, |_| {});
|
||
|
||
fn assert(text: &str, cx: &mut gpui::AppContext) {
|
||
let (mut unmarked_snapshot, markers) = marked_display_snapshot(text, cx);
|
||
unmarked_snapshot.clip_at_line_ends = true;
|
||
assert_eq!(
|
||
unmarked_snapshot.clip_point(markers[1], Bias::Left),
|
||
markers[0]
|
||
);
|
||
}
|
||
|
||
assert("ˇˇ", cx);
|
||
assert("ˇaˇ", cx);
|
||
assert("aˇbˇ", cx);
|
||
assert("aˇαˇ", cx);
|
||
}
|
||
|
||
#[gpui::test]
|
||
fn test_tabs_with_multibyte_chars(cx: &mut gpui::AppContext) {
|
||
init_test(cx, |_| {});
|
||
|
||
let text = "✅\t\tα\nβ\t\n🏀β\t\tγ";
|
||
let buffer = MultiBuffer::build_simple(text, cx);
|
||
let font_cache = cx.font_cache();
|
||
let family_id = font_cache
|
||
.load_family(&["Helvetica"], &Default::default())
|
||
.unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 14.0;
|
||
|
||
let map =
|
||
cx.add_model(|cx| DisplayMap::new(buffer.clone(), font_id, font_size, None, 1, 1, cx));
|
||
let map = map.update(cx, |map, cx| map.snapshot(cx));
|
||
assert_eq!(map.text(), "✅ α\nβ \n🏀β γ");
|
||
assert_eq!(
|
||
map.text_chunks(0).collect::<String>(),
|
||
"✅ α\nβ \n🏀β γ"
|
||
);
|
||
assert_eq!(map.text_chunks(1).collect::<String>(), "β \n🏀β γ");
|
||
assert_eq!(map.text_chunks(2).collect::<String>(), "🏀β γ");
|
||
|
||
let point = Point::new(0, "✅\t\t".len() as u32);
|
||
let display_point = DisplayPoint::new(0, "✅ ".len() as u32);
|
||
assert_eq!(point.to_display_point(&map), display_point);
|
||
assert_eq!(display_point.to_point(&map), point);
|
||
|
||
let point = Point::new(1, "β\t".len() as u32);
|
||
let display_point = DisplayPoint::new(1, "β ".len() as u32);
|
||
assert_eq!(point.to_display_point(&map), display_point);
|
||
assert_eq!(display_point.to_point(&map), point,);
|
||
|
||
let point = Point::new(2, "🏀β\t\t".len() as u32);
|
||
let display_point = DisplayPoint::new(2, "🏀β ".len() as u32);
|
||
assert_eq!(point.to_display_point(&map), display_point);
|
||
assert_eq!(display_point.to_point(&map), point,);
|
||
|
||
// Display points inside of expanded tabs
|
||
assert_eq!(
|
||
DisplayPoint::new(0, "✅ ".len() as u32).to_point(&map),
|
||
Point::new(0, "✅\t".len() as u32),
|
||
);
|
||
assert_eq!(
|
||
DisplayPoint::new(0, "✅ ".len() as u32).to_point(&map),
|
||
Point::new(0, "✅".len() as u32),
|
||
);
|
||
|
||
// Clipping display points inside of multi-byte characters
|
||
assert_eq!(
|
||
map.clip_point(DisplayPoint::new(0, "✅".len() as u32 - 1), Left),
|
||
DisplayPoint::new(0, 0)
|
||
);
|
||
assert_eq!(
|
||
map.clip_point(DisplayPoint::new(0, "✅".len() as u32 - 1), Bias::Right),
|
||
DisplayPoint::new(0, "✅".len() as u32)
|
||
);
|
||
}
|
||
|
||
#[gpui::test]
|
||
fn test_max_point(cx: &mut gpui::AppContext) {
|
||
init_test(cx, |_| {});
|
||
|
||
let buffer = MultiBuffer::build_simple("aaa\n\t\tbbb", cx);
|
||
let font_cache = cx.font_cache();
|
||
let family_id = font_cache
|
||
.load_family(&["Helvetica"], &Default::default())
|
||
.unwrap();
|
||
let font_id = font_cache
|
||
.select_font(family_id, &Default::default())
|
||
.unwrap();
|
||
let font_size = 14.0;
|
||
let map =
|
||
cx.add_model(|cx| DisplayMap::new(buffer.clone(), font_id, font_size, None, 1, 1, cx));
|
||
assert_eq!(
|
||
map.update(cx, |map, cx| map.snapshot(cx)).max_point(),
|
||
DisplayPoint::new(1, 11)
|
||
)
|
||
}
|
||
|
||
#[test]
|
||
fn test_find_internal() {
|
||
assert("This is a ˇtest of find internal", "test");
|
||
assert("Some text ˇaˇaˇaa with repeated characters", "aa");
|
||
|
||
fn assert(marked_text: &str, target: &str) {
|
||
let (text, expected_offsets) = marked_text_offsets(marked_text);
|
||
|
||
let chars = text
|
||
.chars()
|
||
.enumerate()
|
||
.map(|(index, ch)| (ch, DisplayPoint::new(0, index as u32)));
|
||
let target = target.chars();
|
||
|
||
assert_eq!(
|
||
expected_offsets
|
||
.into_iter()
|
||
.map(|offset| offset as u32)
|
||
.collect::<Vec<_>>(),
|
||
DisplaySnapshot::find_internal(chars, target.collect(), |_, _| true)
|
||
.map(|point| point.column())
|
||
.collect::<Vec<_>>()
|
||
)
|
||
}
|
||
}
|
||
|
||
fn syntax_chunks<'a>(
|
||
rows: Range<u32>,
|
||
map: &ModelHandle<DisplayMap>,
|
||
theme: &'a SyntaxTheme,
|
||
cx: &mut AppContext,
|
||
) -> Vec<(String, Option<Color>)> {
|
||
chunks(rows, map, theme, cx)
|
||
.into_iter()
|
||
.map(|(text, color, _)| (text, color))
|
||
.collect()
|
||
}
|
||
|
||
fn chunks<'a>(
|
||
rows: Range<u32>,
|
||
map: &ModelHandle<DisplayMap>,
|
||
theme: &'a SyntaxTheme,
|
||
cx: &mut AppContext,
|
||
) -> Vec<(String, Option<Color>, Option<Color>)> {
|
||
let snapshot = map.update(cx, |map, cx| map.snapshot(cx));
|
||
let mut chunks: Vec<(String, Option<Color>, Option<Color>)> = Vec::new();
|
||
for chunk in snapshot.chunks(rows, true, None, None) {
|
||
let syntax_color = chunk
|
||
.syntax_highlight_id
|
||
.and_then(|id| id.style(theme)?.color);
|
||
let highlight_color = chunk.highlight_style.and_then(|style| style.color);
|
||
if let Some((last_chunk, last_syntax_color, last_highlight_color)) = chunks.last_mut() {
|
||
if syntax_color == *last_syntax_color && highlight_color == *last_highlight_color {
|
||
last_chunk.push_str(chunk.text);
|
||
continue;
|
||
}
|
||
}
|
||
chunks.push((chunk.text.to_string(), syntax_color, highlight_color));
|
||
}
|
||
chunks
|
||
}
|
||
|
||
fn init_test(cx: &mut AppContext, f: impl Fn(&mut AllLanguageSettingsContent)) {
|
||
cx.foreground().forbid_parking();
|
||
cx.set_global(SettingsStore::test(cx));
|
||
language::init(cx);
|
||
cx.update_global::<SettingsStore, _, _>(|store, cx| {
|
||
store.update_user_settings::<AllLanguageSettings>(cx, f);
|
||
});
|
||
}
|
||
}
|