From 5b8d14208b4e307418fbd7016d83c5684707e59b Mon Sep 17 00:00:00 2001
From: sbosse <sbosse@uni-bremen.de>
Date: Mon, 21 Jul 2025 23:11:58 +0200
Subject: [PATCH] Mon 21 Jul 22:43:21 CEST 2025

---
 js/term/widgets/loading.js | 114 +++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 js/term/widgets/loading.js

diff --git a/js/term/widgets/loading.js b/js/term/widgets/loading.js
new file mode 100644
index 0000000..88df6aa
--- /dev/null
+++ b/js/term/widgets/loading.js
@@ -0,0 +1,114 @@
+/**
+ **      ==============================
+ **       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:     Christopher Jeffrey, Stefan Bosse
+ **    $INITIAL:     (C) 2013-2015, Christopher Jeffrey and contributors
+ **    $MODIFIED:    by sbosse
+ **    $REVESIO:     1.2.1
+ **
+ **    $INFO:
+ **
+ **    loading.js - loading element for blessed
+ **
+ **    $ENDOFINFO
+ */
+
+/**
+ * Modules
+ */
+var Comp = Require('com/compat');
+
+var Node = Require('term/widgets/node');
+var Box = Require('term/widgets/box');
+var Text = Require('term/widgets/text');
+
+/**
+ * Loading
+ */
+
+function Loading(options) {
+  if (!instanceOf(this,Node)) {
+    return new Loading(options);
+  }
+
+  options = options || {};
+
+  Box.call(this, options);
+
+  this._.icon = new Text({
+    parent: this,
+    align: 'center',
+    top: 2,
+    left: 1,
+    right: 1,
+    height: 1,
+    content: '|'
+  });
+}
+
+//Loading.prototype.__proto__ = Box.prototype;
+inheritPrototype(Loading,Box);
+
+Loading.prototype.type = 'loading';
+
+Loading.prototype.load = function(text) {
+  var self = this;
+
+  // XXX Keep above:
+  // var parent = this.parent;
+  // this.detach();
+  // parent.append(this);
+
+  this.show();
+  this.setContent(text);
+
+  if (this._.timer) {
+    this.stop();
+  }
+
+  this.screen.lockKeys = true;
+
+  this._.timer = setInterval(function() {
+    if (self._.icon.content === '|') {
+      self._.icon.setContent('/');
+    } else if (self._.icon.content === '/') {
+      self._.icon.setContent('-');
+    } else if (self._.icon.content === '-') {
+      self._.icon.setContent('\\');
+    } else if (self._.icon.content === '\\') {
+      self._.icon.setContent('|');
+    }
+    self.screen.render();
+  }, 200);
+};
+
+Loading.prototype.stop = function() {
+  this.screen.lockKeys = false;
+  this.hide();
+  if (this._.timer) {
+    clearInterval(this._.timer);
+    delete this._.timer;
+  }
+  this.screen.render();
+};
+
+/**
+ * Expose
+ */
+
+module.exports = Loading;