feat: fix show pdf and add export pdf code lens

crates/tinymist-query/src/code_lens.rs

@@ -0,0 +1,41 @@
+use lsp_types::Command;
+
+use crate::prelude::*;
+
+#[derive(Debug, Clone)]
+pub struct CodeLensRequest {
+    pub path: PathBuf,
+}
+
+impl CodeLensRequest {
+    pub fn request(
+        self,
+        world: &TypstSystemWorld,
+        position_encoding: PositionEncoding,
+    ) -> Option<Vec<CodeLens>> {
+        let source = get_suitable_source_in_workspace(world, &self.path).ok()?;
+
+        let doc_start = typst_to_lsp::range(0..0, &source, position_encoding);
+
+        let mut res = vec![];
+
+        let run_code_lens_cmd = |title: &str, args: Vec<JsonValue>| Command {
+            title: title.to_string(),
+            command: "tinymist.runCodeLens".to_string(),
+            arguments: Some(args),
+        };
+
+        let doc_lens = |title: &str, args: Vec<JsonValue>| CodeLens {
+            range: doc_start,
+            command: Some(run_code_lens_cmd(title, args)),
+            data: None,
+        };
+
+        res.push(doc_lens("Preview", vec!["preview".into()]));
+        res.push(doc_lens("Preview in ..", vec!["preview-in".into()]));
+        res.push(doc_lens("Export PDF", vec!["export-pdf".into()]));
+        res.push(doc_lens("Export ..", vec!["export-as".into()]));
+
+        Some(res)
+    }
+}