Initial commit

wwwroot/lib/popper.js/esm/modifiers/applyStyles.js

@@ -0,0 +1,84 @@
+import getNodeName from "../dom-utils/getNodeName.js";
+import { isHTMLElement } from "../dom-utils/instanceOf.js"; // This modifier takes the styles prepared by the `computeStyles` modifier
+// and applies them to the HTMLElements such as popper and arrow
+
+function applyStyles(_ref) {
+  var state = _ref.state;
+  Object.keys(state.elements).forEach(function (name) {
+    var style = state.styles[name] || {};
+    var attributes = state.attributes[name] || {};
+    var element = state.elements[name]; // arrow is optional + virtual elements
+
+    if (!isHTMLElement(element) || !getNodeName(element)) {
+      return;
+    } // Flow doesn't support to extend this property, but it's the most
+    // effective way to apply styles to an HTMLElement
+    // $FlowFixMe[cannot-write]
+
+
+    Object.assign(element.style, style);
+    Object.keys(attributes).forEach(function (name) {
+      var value = attributes[name];
+
+      if (value === false) {
+        element.removeAttribute(name);
+      } else {
+        element.setAttribute(name, value === true ? '' : value);
+      }
+    });
+  });
+}
+
+function effect(_ref2) {
+  var state = _ref2.state;
+  var initialStyles = {
+    popper: {
+      position: state.options.strategy,
+      left: '0',
+      top: '0',
+      margin: '0'
+    },
+    arrow: {
+      position: 'absolute'
+    },
+    reference: {}
+  };
+  Object.assign(state.elements.popper.style, initialStyles.popper);
+  state.styles = initialStyles;
+
+  if (state.elements.arrow) {
+    Object.assign(state.elements.arrow.style, initialStyles.arrow);
+  }
+
+  return function () {
+    Object.keys(state.elements).forEach(function (name) {
+      var element = state.elements[name];
+      var attributes = state.attributes[name] || {};
+      var styleProperties = Object.keys(state.styles.hasOwnProperty(name) ? state.styles[name] : initialStyles[name]); // Set all values to an empty string to unset them
+
+      var style = styleProperties.reduce(function (style, property) {
+        style[property] = '';
+        return style;
+      }, {}); // arrow is optional + virtual elements
+
+      if (!isHTMLElement(element) || !getNodeName(element)) {
+        return;
+      }
+
+      Object.assign(element.style, style);
+      Object.keys(attributes).forEach(function (attribute) {
+        element.removeAttribute(attribute);
+      });
+    });
+  };
+} // eslint-disable-next-line import/no-unused-modules
+
+
+export default {
+  name: 'applyStyles',
+  enabled: true,
+  phase: 'write',
+  fn: applyStyles,
+  effect: effect,
+  requires: ['computeStyles']
+};