From 5e4c93c685072a47ad6bc8a5d976f0c5d2fa338e Mon Sep 17 00:00:00 2001
From: sbosse <sbosse@uni-bremen.de>
Date: Mon, 21 Jul 2025 23:12:06 +0200
Subject: [PATCH] Mon 21 Jul 22:43:21 CEST 2025

---
 js/term/widgets/button.js | 150 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 150 insertions(+)
 create mode 100644 js/term/widgets/button.js

diff --git a/js/term/widgets/button.js b/js/term/widgets/button.js
new file mode 100644
index 0000000..d477142
--- /dev/null
+++ b/js/term/widgets/button.js
@@ -0,0 +1,150 @@
+/**
+ **      ==============================
+ **       O           O      O   OOOO
+ **       O           O     O O  O   O
+ **       O           O     O O  O   O
+ **       OOOO   OOOO O     OOO  OOOO
+ **       O   O       O    O   O O   O
+ **       O   O       O    O   O O   O
+ **       OOOO        OOOO O   O OOOO
+ **      ==============================
+ **      Dr. Stefan Bosse http://www.bsslab.de
+ **
+ **      COPYRIGHT: THIS SOFTWARE, EXECUTABLE AND SOURCE CODE IS OWNED
+ **                 BY THE AUTHOR(S).
+ **                 THIS SOURCE CODE MAY NOT BE COPIED, EXTRACTED,
+ **                 MODIFIED, OR OTHERWISE USED IN A CONTEXT
+ **                 OUTSIDE OF THE SOFTWARE SYSTEM.
+ **
+ **    $AUTHORS:     Stefan Bosse
+ **    $INITIAL:     (C) 2013-2015, Christopher Jeffrey and contributors
+ **    $MODIFIED:    by sbosse
+ **    $REVESIO:     1.1.8
+ **
+ **    $INFO:
+ **
+ **    button.js - button element for blessed
+ **
+ **     Options: {mouse:boolean,content,border,style,object}
+ **
+ **     Events In: click keypress
+ **     Events Out: press
+ **
+ **  Usage:
+ 
+    var width;
+    if (Comp.obj.isString(options.width)) {
+      // relative value in %!
+      width=Comp.pervasives.int_of_string(options.width);
+      width=int(self.screen.width*width/100);
+    }
+    var obj = blessed.button({
+      width: options.width||(options.content.length+4),
+      left: (options.center?int(self.screen.width/2-width/2):options.left),
+      right : options.right,
+      top: options.top||0,
+      height: 3,
+      align: 'center',
+      content: options.content||'?',
+      mouse:true,
+      focus:false,
+      border: {
+        type: 'line'
+      },
+      style: {
+        fg: 'white',
+        bg: options.color||'blue',
+        bold:true,
+        border: {
+          fg: 'black'
+        },
+        hover: {
+          border: {
+            fg: 'red'
+          }
+        }
+      }  
+    });
+    screen.append(obj);
+ 
+ **    $ENDOFINFO
+ */
+
+/**
+ * Modules
+ */
+var Comp = Require('com/compat');
+
+var Node = Require('term/widgets/node');
+var Input = Require('term/widgets/input');
+
+/**
+ * Button
+ */
+
+function Button(options) {
+  var self = this;
+
+  if (!instanceOf(this,Node)) {
+    return new Button(options);
+  }
+
+  options = options || {};
+
+  if (options.autoFocus == null) {
+    options.autoFocus = false;
+  }
+
+  if (!options.style) options.style = {
+      fg: 'white',
+      bg: 'blue',
+      bold:true,
+      border: {
+        fg: 'black'
+      },
+      hover: {
+        border: {
+          fg: 'red'
+        }
+      },
+      focus : {
+        border: {
+          fg: 'red'
+        }      
+      }
+  }
+  if (options.object) this.object=options.object;
+  
+  Input.call(this, options);
+
+  this.on('keypress', function(ch, key) {
+    if (key.name == 'enter' || key.name == 'return') {
+      return self.press();
+    }
+  });
+
+  if (this.options.mouse) {
+    this.on('click', function() {
+      return self.press();
+    });
+  }
+}
+
+//Button.prototype.__proto__ = Input.prototype;
+inheritPrototype(Button,Input);
+
+Button.prototype.type = 'button';
+
+Button.prototype.press = function() {
+  this.focus();
+  this.value = true;
+  var result = this.emit('press');
+  delete this.value;
+  return result;
+};
+
+/**
+ * Expose
+ */
+
+module.exports = Button;