paradiego

node_modules/dom-helpers/esm/position.js

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+import _extends from "@babel/runtime/helpers/esm/extends";
+import css from './css';
+import getOffset from './offset';
+import getOffsetParent from './offsetParent';
+import scrollLeft from './scrollLeft';
+import scrollTop from './scrollTop';
+
+var nodeName = function nodeName(node) {
+  return node.nodeName && node.nodeName.toLowerCase();
+};
+/**
+ * Returns the relative position of a given element.
+ * 
+ * @param node the element
+ * @param offsetParent the offset parent
+ */
+
+
+export default function position(node, offsetParent) {
+  var parentOffset = {
+    top: 0,
+    left: 0
+  };
+  var offset; // Fixed elements are offset from window (parentOffset = {top:0, left: 0},
+  // because it is its only offset parent
+
+  if (css(node, 'position') === 'fixed') {
+    offset = node.getBoundingClientRect();
+  } else {
+    var parent = offsetParent || getOffsetParent(node);
+    offset = getOffset(node);
+    if (nodeName(parent) !== 'html') parentOffset = getOffset(parent);
+    var borderTop = String(css(parent, 'borderTopWidth') || 0);
+    parentOffset.top += parseInt(borderTop, 10) - scrollTop(parent) || 0;
+    var borderLeft = String(css(parent, 'borderLeftWidth') || 0);
+    parentOffset.left += parseInt(borderLeft, 10) - scrollLeft(parent) || 0;
+  }
+
+  var marginTop = String(css(node, 'marginTop') || 0);
+  var marginLeft = String(css(node, 'marginLeft') || 0); // Subtract parent offsets and node margins
+
+  return _extends({}, offset, {
+    top: offset.top - parentOffset.top - (parseInt(marginTop, 10) || 0),
+    left: offset.left - parentOffset.left - (parseInt(marginLeft, 10) || 0)
+  });
+}