Move all "edit.js" functions into Modules

Create new repository to track these

src/utils/DomHelpers.mjs

@@ -0,0 +1,75 @@
+/*
+Description: DOM Helpers
+Date:        2025//3/6
+Creator:     Clemens Schwaighofer
+*/
+
+export { loadEl, pop, expandTA, exists };
+
+/**
+ * Gets html element or throws an error
+ * @param {string} el_id Element ID to get
+ * @returns {HTMLElement}
+ * @throws Error
+ */
+function loadEl(el_id)
+{
+	let el = document.getElementById(el_id);
+	if (el === null) {
+		throw new Error('Cannot find: ' + el_id);
+	}
+	return el;
+}
+
+/**
+ * opens a popup window with winName and given features (string)
+ * @param {String} theURL   the url
+ * @param {String} winName  window name
+ * @param {Object} features popup features
+ */
+function pop(theURL, winName, features)
+{
+	let __winName = window.open(theURL, winName, features);
+	if (__winName == null) {
+		return;
+	}
+	__winName.focus();
+}
+
+/**
+ * automatically resize a text area based on the amount of lines in it
+ * @param {string} ta_id element id
+ */
+function expandTA(ta_id)
+{
+	let ta = this.loadEl(ta_id);
+	if (ta instanceof HTMLElement && ta.getAttribute('type') !== "textarea") {
+		throw new Error("Element is not a textarea: " + ta_id);
+	}
+	let maxChars = parseInt(ta.getAttribute('cols') ?? "0");
+	let ta_value = ta.getAttribute('value');
+	let theRows = [];
+	if (ta_value != null) {
+		theRows = ta_value.split('\n');
+	}
+	var numNewRows = 0;
+
+	for ( var i = 0; i < theRows.length; i++ ) {
+		if ((theRows[i].length+2) > maxChars) {
+			numNewRows += Math.ceil( (theRows[i].length+2) / maxChars ) ;
+		}
+	}
+	ta.setAttribute('row', (numNewRows + theRows.length).toString());
+}
+
+/**
+ * checks if a DOM element actually exists
+ * @param  {String}  id Element id to check for
+ * @return {Boolean}    true if element exists, false on failure
+ */
+function exists(id)
+{
+	return $('#' + id).length > 0 ? true : false;
+}
+
+// __END__