From 3038c2ef6d392a570aaed9c7d51427363c43046d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bla=C5=BE=20Hrastnik?= <blaz@mxxn.io>
Date: Mon, 3 May 2021 18:22:29 +0900
Subject: [PATCH] ui: Draft for completion doc preview.
---
helix-term/src/ui/completion.rs | 45 +++++++++++++++++++++++++++++++--
1 file changed, 43 insertions(+), 2 deletions(-)
diff --git a/helix-term/src/ui/completion.rs b/helix-term/src/ui/completion.rs
index 7a8413f8..3f60dad4 100644
--- a/helix-term/src/ui/completion.rs
+++ b/helix-term/src/ui/completion.rs
@@ -13,7 +13,7 @@ use helix_core::{Position, Transaction};
use helix_view::Editor;
use crate::commands;
-use crate::ui::{Menu, Popup, PromptEvent};
+use crate::ui::{Markdown, Menu, Popup, PromptEvent};
use helix_lsp::lsp;
use lsp::CompletionItem;
@@ -173,6 +173,47 @@ impl Component for Completion {
}
fn render(&self, area: Rect, surface: &mut Surface, cx: &mut Context) {
- self.popup.render(area, surface, cx)
+ self.popup.render(area, surface, cx);
+
+ // TODO: if we have a selection, render a markdown popup on top/below with info
+ if let Some(option) = self.popup.contents().selection() {
+ // need to render:
+ // option.detail
+ // ---
+ // option.documentation
+ match &option.documentation {
+ Some(lsp::Documentation::String(s))
+ | Some(lsp::Documentation::MarkupContent(lsp::MarkupContent {
+ kind: lsp::MarkupKind::PlainText,
+ value: s,
+ })) => {
+ // TODO: convert to wrapped text
+ let doc = s;
+ }
+ Some(lsp::Documentation::MarkupContent(lsp::MarkupContent {
+ kind: lsp::MarkupKind::Markdown,
+ value: contents,
+ })) => {
+ let doc = Markdown::new(contents.clone());
+ let half = area.height / 2;
+ let height = 15.min(half);
+ // -2 to subtract command line + statusline. a bit of a hack, because of splits.
+ let area = Rect::new(0, area.height - height - 2, area.width, height);
+
+ // clear area
+ let background = cx.editor.theme.get("ui.popup");
+ for y in area.top()..area.bottom() {
+ for x in area.left()..area.right() {
+ let cell = surface.get_mut(x, y);
+ cell.reset();
+ // cell.symbol.clear();
+ cell.set_style(background);
+ }
+ }
+ doc.render(area, surface, cx);
+ }
+ None => (),
+ }
+ }
}
}