From c1598c56005fa367dc9729d6ecf51f16290549ab Mon Sep 17 00:00:00 2001
From: rhysd <lin90162@yahoo.co.jp>
Date: Tue, 14 Jun 2022 16:48:54 +0900
Subject: [PATCH] add `TextArea::is_empty()`

---
 src/textarea.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/textarea.rs b/src/textarea.rs
index d8c0ac3..4cbf6cb 100644
--- a/src/textarea.rs
+++ b/src/textarea.rs
@@ -1071,6 +1071,20 @@ impl<'a> TextArea<'a> {
     pub fn cursor(&self) -> (usize, usize) {
         self.cursor
     }
+
+    /// Check if the textarea has a empty content.
+    /// ```
+    /// use tui_textarea::TextArea;
+    ///
+    /// let textarea = TextArea::default();
+    /// assert!(textarea.is_empty());
+    ///
+    /// let textarea = TextArea::from(["hello"]);
+    /// assert!(!textarea.is_empty());
+    /// ```
+    pub fn is_empty(&self) -> bool {
+        self.lines == [""]
+    }
 }
 
 struct Renderer<'a> {