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modules/advancedpopupcreator/lib/CodeMirror/addon/scroll/scrollpastend.js

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+/*
+ * NOTICE OF LICENSE
+ *
+ * This product is licensed for one customer to use on one installation (test stores and multishop included).
+ * Site developer has the right to modify this module to suit their needs, but can not redistribute the module in
+ * whole or in part. Any other use of this module constitutes a violation of the user agreement.
+ *
+ * DISCLAIMER
+ *
+ * NO WARRANTIES OF DATA SAFETY OR MODULE SECURITY
+ * ARE EXPRESSED OR IMPLIED. USE THIS MODULE IN ACCORDANCE
+ * WITH YOUR MERCHANT AGREEMENT, KNOWING THAT VIOLATIONS OF
+ * PCI COMPLIANCY OR A DATA BREACH CAN COST THOUSANDS OF DOLLARS
+ * IN FINES AND DAMAGE A STORES REPUTATION. USE AT YOUR OWN RISK.
+ *
+ * @author    idnovate.com <info@idnovate.com>
+ * @copyright 2022 idnovate.com
+ * @license   See above
+ */
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineOption("scrollPastEnd", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      cm.off("change", onChange);
+      cm.off("refresh", updateBottomMargin);
+      cm.display.lineSpace.parentNode.style.paddingBottom = "";
+      cm.state.scrollPastEndPadding = null;
+    }
+    if (val) {
+      cm.on("change", onChange);
+      cm.on("refresh", updateBottomMargin);
+      updateBottomMargin(cm);
+    }
+  });
+
+  function onChange(cm, change) {
+    if (CodeMirror.changeEnd(change).line == cm.lastLine())
+      updateBottomMargin(cm);
+  }
+
+  function updateBottomMargin(cm) {
+    var padding = "";
+    if (cm.lineCount() > 1) {
+      var totalH = cm.display.scroller.clientHeight - 30,
+          lastLineH = cm.getLineHandle(cm.lastLine()).height;
+      padding = (totalH - lastLineH) + "px";
+    }
+    if (cm.state.scrollPastEndPadding != padding) {
+      cm.state.scrollPastEndPadding = padding;
+      cm.display.lineSpace.parentNode.style.paddingBottom = padding;
+      cm.off("refresh", updateBottomMargin);
+      cm.setSize();
+      cm.on("refresh", updateBottomMargin);
+    }
+  }
+});