Add upstream

wp-content/plugins/shariff/js/shariff-popup.js

@@ -0,0 +1,29 @@
+// add click listener function
+function shariff_click() {
+    // enabled strict mode
+    "use strict";
+	// get elements
+	var classname = document.getElementsByClassName( 'shariff-link' );
+	// set all event listeners
+	for ( var i = 0; i < classname.length; i++ ) {
+		classname[i].addEventListener( 'click', shariff_popup, false );
+	}
+}
+// actual popup function
+function shariff_popup( evt ) {
+	// set variables
+	var t = this.getAttribute( 'href' );
+	var o = screen.width/2-350;
+	var r = screen.height/2-250;
+	// open popup if not one of the special services
+	if ( t.substring( 0, 7 ) !== 'mailto:' && t.substring( 0, 9 ) !== "whatsapp:" && t !== 'javascript:window.print()' && t !== 'http://ct.de/-2467514' ) {
+		// prevent default action
+		evt.preventDefault();
+		// open popup
+        window.open( t,"_blank","height=500, width=700, status=yes, toolbar=no, menubar=no, location=no, top="+r+", left="+o );
+		// return false to prevent tab opening in some browsers
+		return false;
+	}
+}
+// add event listener to call shariff popup function after DOM
+document.addEventListener( 'DOMContentLoaded', shariff_click, false );