Grow text mode properly during pastes.

include/internal/ui/text_mode.h

@@ -15,7 +15,7 @@ struct TextMode {
 
   TextMode(BEd &);
   std::pair<vase::Shard *, bool> run();
-  void grow(size_t required_height);
+  void grow();
   void redraw();
 };
 } // namespace bed::internal::ui

src/internal/ui/text_mode/text_mode.cc

@@ -42,9 +42,8 @@ std::pair<vase::Shard *, bool> TextMode::run() {
             cmd.erase(--cursor, 1);
           }
         } else if (res.text[0] == '\n') {
-          size_t lines = 1 + std::count(cmd.begin(), cmd.end(), '\n');
-          grow(lines + 1);
           cmd.insert(cursor++, 1, '\n');
+          grow();
         } else {
           cmd.insert(cursor, res.text);
           cursor += res.text.size();
@@ -55,6 +54,7 @@ std::pair<vase::Shard *, bool> TextMode::run() {
     case io::KeyEvent::KeyType::PASTE:
       cmd.insert(cursor, res.text);
       cursor += res.text.size();
+      grow();
       break;
     case io::KeyEvent::KeyType::SPECIAL:
       switch (res.special_key) {
@@ -137,7 +137,8 @@ std::pair<vase::Shard *, bool> TextMode::run() {
   return {vase::Shard::from_string(cmd.data(), cmd.length(), true), false};
 }
 
-void TextMode::grow(size_t required_height) {
+void TextMode::grow() {
+  size_t required_height = 1 + std::count(cmd.begin(), cmd.end(), '\n');
   auto [rows, cols] = bed.io.terminal_size();
   term_height = rows;
   term_width = cols;