support prefilling prompt (#2459)

* support prefilling prompt

* introduce with_line builder method in Prompt

* extract show_prompt

* use textobject_word as fallback input

1 files changed, 13 insertions, 1 deletions

diff --git a/helix-term/src/commands/lsp.rs b/helix-term/src/commands/lsp.rs
index 630c47e1..a91e3792 100644
--- a/helix-term/src/commands/lsp.rs
+++ b/helix-term/src/commands/lsp.rs
@@ -885,9 +885,21 @@ pub fn hover(cx: &mut Context) {
 }
 
 pub fn rename_symbol(cx: &mut Context) {
-    ui::prompt(
+    let (view, doc) = current_ref!(cx.editor);
+    let text = doc.text().slice(..);
+    let primary_selection = doc.selection(view.id).primary();
+    let prefill = if primary_selection.len() > 1 {
+        primary_selection
+    } else {
+        use helix_core::textobject::{textobject_word, TextObject};
+        textobject_word(text, primary_selection, TextObject::Inside, 1, false)
+    }
+    .fragment(text)
+    .into();
+    ui::prompt_with_input(
         cx,
         "rename-to:".into(),
+        prefill,
         None,
         ui::completers::none,
         move |cx: &mut compositor::Context, input: &str, event: PromptEvent| {