1// This crate was essentially pulled out verbatim from main `zed` crate to avoid having to run RustEmbed macro whenever zed has to be rebuilt. It saves a second or two on an incremental build.
 2use anyhow::anyhow;
 3
 4use gpui::{AppContext, AssetSource, Result, SharedString};
 5use rust_embed::RustEmbed;
 6
 7#[derive(RustEmbed)]
 8#[folder = "../../assets"]
 9#[include = "fonts/**/*"]
10#[include = "icons/**/*"]
11#[include = "themes/**/*"]
12#[exclude = "themes/src/*"]
13#[include = "sounds/**/*"]
14#[include = "*.md"]
15#[exclude = "*.DS_Store"]
16pub struct Assets;
17
18impl AssetSource for Assets {
19    fn load(&self, path: &str) -> Result<Option<std::borrow::Cow<'static, [u8]>>> {
20        Self::get(path)
21            .map(|f| Some(f.data))
22            .ok_or_else(|| anyhow!("could not find asset at path \"{}\"", path))
23    }
24
25    fn list(&self, path: &str) -> Result<Vec<SharedString>> {
26        Ok(Self::iter()
27            .filter_map(|p| {
28                if p.starts_with(path) {
29                    Some(p.into())
30                } else {
31                    None
32                }
33            })
34            .collect())
35    }
36}
37
38impl Assets {
39    /// Populate the [`TextSystem`] of the given [`AppContext`] with all `.ttf` fonts in the `fonts` directory.
40    pub fn load_fonts(&self, cx: &AppContext) -> gpui::Result<()> {
41        let font_paths = self.list("fonts")?;
42        let mut embedded_fonts = Vec::new();
43        for font_path in font_paths {
44            if font_path.ends_with(".ttf") {
45                let font_bytes = cx
46                    .asset_source()
47                    .load(&font_path)?
48                    .expect("Assets should never return None");
49                embedded_fonts.push(font_bytes);
50            }
51        }
52
53        cx.text_system().add_fonts(embedded_fonts)
54    }
55}