diff options
Diffstat (limited to 'helix-term/src/ui')
| -rw-r--r-- | helix-term/src/ui/completion.rs | 8 | ||||
| -rw-r--r-- | helix-term/src/ui/markdown.rs | 62 |
2 files changed, 39 insertions, 31 deletions
diff --git a/helix-term/src/ui/completion.rs b/helix-term/src/ui/completion.rs index 35afe81e..d3b618a9 100644 --- a/helix-term/src/ui/completion.rs +++ b/helix-term/src/ui/completion.rs @@ -305,8 +305,6 @@ impl Component for Completion { let coords = helix_core::visual_coords_at_pos(text, cursor_pos, doc.tab_width()); let cursor_pos = (coords.row - view.offset.row) as u16; - let markdown_ui = - |content, syn_loader| Markdown::new(content, syn_loader).style_group("completion"); let mut markdown_doc = match &option.documentation { Some(lsp::Documentation::String(contents)) | Some(lsp::Documentation::MarkupContent(lsp::MarkupContent { @@ -314,7 +312,7 @@ impl Component for Completion { value: contents, })) => { // TODO: convert to wrapped text - markdown_ui( + Markdown::new( format!( "```{}\n{}\n```\n{}", language, @@ -329,7 +327,7 @@ impl Component for Completion { value: contents, })) => { // TODO: set language based on doc scope - markdown_ui( + Markdown::new( format!( "```{}\n{}\n```\n{}", language, @@ -343,7 +341,7 @@ impl Component for Completion { // TODO: copied from above // TODO: set language based on doc scope - markdown_ui( + Markdown::new( format!( "```{}\n{}\n```", language, diff --git a/helix-term/src/ui/markdown.rs b/helix-term/src/ui/markdown.rs index cfb5998c..bcb63c29 100644 --- a/helix-term/src/ui/markdown.rs +++ b/helix-term/src/ui/markdown.rs @@ -6,14 +6,14 @@ use tui::{ use std::sync::Arc; -use pulldown_cmark::{CodeBlockKind, CowStr, Event, Options, Parser, Tag}; +use pulldown_cmark::{CodeBlockKind, CowStr, Event, HeadingLevel, Options, Parser, Tag}; use helix_core::{ syntax::{self, HighlightEvent, Syntax}, Rope, }; use helix_view::{ - graphics::{Margin, Rect}, + graphics::{Margin, Rect, Style}, Theme, }; @@ -21,30 +21,31 @@ pub struct Markdown { contents: String, config_loader: Arc<syntax::Loader>, - - block_style: String, - heading_style: String, } // TODO: pre-render and self reference via Pin // better yet, just use Tendril + subtendril for references impl Markdown { + // theme keys, including fallbacks + const TEXT_STYLE: [&'static str; 2] = ["ui.text", "ui"]; + const BLOCK_STYLE: [&'static str; 3] = ["markup.raw.inline", "markup.raw", "markup"]; + const HEADING_STYLES: [[&'static str; 3]; 6] = [ + ["markup.heading.1", "markup.heading", "markup"], + ["markup.heading.2", "markup.heading", "markup"], + ["markup.heading.3", "markup.heading", "markup"], + ["markup.heading.4", "markup.heading", "markup"], + ["markup.heading.5", "markup.heading", "markup"], + ["markup.heading.6", "markup.heading", "markup"], + ]; + pub fn new(contents: String, config_loader: Arc<syntax::Loader>) -> Self { Self { contents, config_loader, - block_style: "markup.raw.inline".into(), - heading_style: "markup.heading".into(), } } - pub fn style_group(mut self, suffix: &str) -> Self { - self.block_style = format!("markup.raw.inline.{}", suffix); - self.heading_style = format!("markup.heading.{}", suffix); - self - } - fn parse(&self, theme: Option<&Theme>) -> tui::text::Text<'_> { // // also 2021-03-04T16:33:58.553 helix_lsp::transport [INFO] <- {"contents":{"kind":"markdown","value":"\n```rust\ncore::num\n```\n\n```rust\npub const fn saturating_sub(self, rhs:Self) ->Self\n```\n\n---\n\n```rust\n```"},"range":{"end":{"character":61,"line":101},"start":{"character":47,"line":101}}} // let text = "\n```rust\ncore::iter::traits::iterator::Iterator\n```\n\n```rust\nfn collect<B: FromIterator<Self::Item>>(self) -> B\nwhere\n Self: Sized,\n```\n\n---\n\nTransforms an iterator into a collection.\n\n`collect()` can take anything iterable, and turn it into a relevant\ncollection. This is one of the more powerful methods in the standard\nlibrary, used in a variety of contexts.\n\nThe most basic pattern in which `collect()` is used is to turn one\ncollection into another. You take a collection, call [`iter`](https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html) on it,\ndo a bunch of transformations, and then `collect()` at the end.\n\n`collect()` can also create instances of types that are not typical\ncollections. For example, a [`String`](https://doc.rust-lang.org/nightly/core/iter/std/string/struct.String.html) can be built from [`char`](type@char)s,\nand an iterator of [`Result<T, E>`](https://doc.rust-lang.org/nightly/core/result/enum.Result.html) items can be collected\ninto `Result<Collection<T>, E>`. See the examples below for more.\n\nBecause `collect()` is so general, it can cause problems with type\ninference. As such, `collect()` is one of the few times you'll see\nthe syntax affectionately known as the 'turbofish': `::<>`. This\nhelps the inference algorithm understand specifically which collection\nyou're trying to collect into.\n\n# Examples\n\nBasic usage:\n\n```rust\nlet a = [1, 2, 3];\n\nlet doubled: Vec<i32> = a.iter()\n .map(|&x| x * 2)\n .collect();\n\nassert_eq!(vec![2, 4, 6], doubled);\n```\n\nNote that we needed the `: Vec<i32>` on the left-hand side. This is because\nwe could collect into, for example, a [`VecDeque<T>`](https://doc.rust-lang.org/nightly/core/iter/std/collections/struct.VecDeque.html) instead:\n\n```rust\nuse std::collections::VecDeque;\n\nlet a = [1, 2, 3];\n\nlet doubled: VecDeque<i32> = a.iter().map(|&x| x * 2).collect();\n\nassert_eq!(2, doubled[0]);\nassert_eq!(4, doubled[1]);\nassert_eq!(6, doubled[2]);\n```\n\nUsing the 'turbofish' instead of annotating `doubled`:\n\n```rust\nlet a = [1, 2, 3];\n\nlet doubled = a.iter().map(|x| x * 2).collect::<Vec<i32>>();\n\nassert_eq!(vec![2, 4, 6], doubled);\n```\n\nBecause `collect()` only cares about what you're collecting into, you can\nstill use a partial type hint, `_`, with the turbofish:\n\n```rust\nlet a = [1, 2, 3];\n\nlet doubled = a.iter().map(|x| x * 2).collect::<Vec<_>>();\n\nassert_eq!(vec![2, 4, 6], doubled);\n```\n\nUsing `collect()` to make a [`String`](https://doc.rust-lang.org/nightly/core/iter/std/string/struct.String.html):\n\n```rust\nlet chars = ['g', 'd', 'k', 'k', 'n'];\n\nlet hello: String = chars.iter()\n .map(|&x| x as u8)\n .map(|x| (x + 1) as char)\n .collect();\n\nassert_eq!(\"hello\", hello);\n```\n\nIf you have a list of [`Result<T, E>`](https://doc.rust-lang.org/nightly/core/result/enum.Result.html)s, you can use `collect()` to\nsee if any of them failed:\n\n```rust\nlet results = [Ok(1), Err(\"nope\"), Ok(3), Err(\"bad\")];\n\nlet result: Result<Vec<_>, &str> = results.iter().cloned().collect();\n\n// gives us the first error\nassert_eq!(Err(\"nope\"), result);\n\nlet results = [Ok(1), Ok(3)];\n\nlet result: Result<Vec<_>, &str> = results.iter().cloned().collect();\n\n// gives us the list of answers\nassert_eq!(Ok(vec![1, 3]), result);\n```"; @@ -67,17 +68,19 @@ impl Markdown { }) } - macro_rules! get_theme { - ($s1: expr) => { - theme - .map(|theme| theme.try_get($s1.as_str())) - .flatten() - .unwrap_or_default() - }; - } - let text_style = theme.map(|theme| theme.get("ui.text")).unwrap_or_default(); - let code_style = get_theme!(self.block_style); - let heading_style = get_theme!(self.heading_style); + let get_theme = |keys: &[&str]| match theme { + Some(theme) => keys + .iter() + .find_map(|key| theme.try_get(key)) + .unwrap_or_default(), + None => Default::default(), + }; + let text_style = get_theme(&Self::TEXT_STYLE); + let code_style = get_theme(&Self::BLOCK_STYLE); + let heading_styles: Vec<Style> = Self::HEADING_STYLES + .iter() + .map(|key| get_theme(key)) + .collect(); for event in parser { match event { @@ -172,9 +175,16 @@ impl Markdown { lines.push(Spans::from(span)); } } - } else if let Some(Tag::Heading(_, _, _)) = tags.last() { + } else if let Some(Tag::Heading(level, _, _)) = tags.last() { let mut span = to_span(text); - span.style = heading_style; + span.style = match level { + HeadingLevel::H1 => heading_styles[0], + HeadingLevel::H2 => heading_styles[1], + HeadingLevel::H3 => heading_styles[2], + HeadingLevel::H4 => heading_styles[3], + HeadingLevel::H5 => heading_styles[4], + HeadingLevel::H6 => heading_styles[5], + }; spans.push(span); } else { let mut span = to_span(text); |