Add way to add fake pending key data below status, use with mi/ma

This is a bit hacky as it makes use of global state which will end
up managed in multiple places, but has precedent in the way autoinfo
works. There should probably be a bigger refactor to handle this
kind of state better.

helix-term/src/commands.rs

@@ -5346,6 +5346,7 @@ fn select_textobject(cx: &mut Context, objtype: textobject::TextObject) {
 
     cx.on_next_key(move |cx, event| {
         cx.editor.autoinfo = None;
+        cx.editor.pseudo_pending = None;
         if let Some(ch) = event.char() {
             let textobject = move |editor: &mut Editor| {
                 let (view, doc) = current!(editor);
@@ -5396,9 +5397,9 @@ fn select_textobject(cx: &mut Context, objtype: textobject::TextObject) {
         }
     });
 
-    if let Some(title) = match objtype {
-        textobject::TextObject::Inside => Some("Match inside"),
-        textobject::TextObject::Around => Some("Match around"),
+    if let Some((title, abbrev)) = match objtype {
+        textobject::TextObject::Inside => Some(("Match inside", "mi")),
+        textobject::TextObject::Around => Some(("Match around", "ma")),
         textobject::TextObject::Movement => None,
     } {
         let help_text = [
@@ -5418,6 +5419,7 @@ fn select_textobject(cx: &mut Context, objtype: textobject::TextObject) {
                 .map(|(col1, col2)| (col1.to_string(), col2.to_string()))
                 .collect(),
         ));
+        cx.editor.pseudo_pending = Some(abbrev.to_string());
     };
 }
 

helix-term/src/ui/editor.rs

@@ -1213,6 +1213,9 @@ impl Component for EditorView {
                     disp.push_str(&s);
                 }
             }
+            if let Some(pseudo_pending) = &cx.editor.pseudo_pending {
+                disp.push_str(&*pseudo_pending)
+            }
             let style = cx.editor.theme.get("ui.text");
             let macro_width = if cx.editor.macro_recording.is_some() {
                 3

helix-view/src/editor.rs

@@ -292,6 +292,7 @@ pub struct Editor {
 
     pub idle_timer: Pin<Box<Sleep>>,
     pub last_motion: Option<Motion>,
+    pub pseudo_pending: Option<String>,
 
     pub exit_code: i32,
 }
@@ -336,6 +337,7 @@ impl Editor {
             autoinfo: None,
             idle_timer: Box::pin(sleep(config.idle_timeout)),
             last_motion: None,
+            pseudo_pending: None,
             config,
             exit_code: 0,
         }