v1.0 with SW PWA enabled

frontend/node_modules/aria-hidden/dist/es5/index.js

@@ -0,0 +1,174 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.suppressOthers = exports.supportsInert = exports.inertOthers = exports.hideOthers = void 0;
+var getDefaultParent = function (originalTarget) {
+    if (typeof document === 'undefined') {
+        return null;
+    }
+    var sampleTarget = Array.isArray(originalTarget) ? originalTarget[0] : originalTarget;
+    return sampleTarget.ownerDocument.body;
+};
+var counterMap = new WeakMap();
+var uncontrolledNodes = new WeakMap();
+var markerMap = {};
+var lockCount = 0;
+var unwrapHost = function (node) {
+    return node && (node.host || unwrapHost(node.parentNode));
+};
+var correctTargets = function (parent, targets) {
+    return targets
+        .map(function (target) {
+        if (parent.contains(target)) {
+            return target;
+        }
+        var correctedTarget = unwrapHost(target);
+        if (correctedTarget && parent.contains(correctedTarget)) {
+            return correctedTarget;
+        }
+        console.error('aria-hidden', target, 'in not contained inside', parent, '. Doing nothing');
+        return null;
+    })
+        .filter(function (x) { return Boolean(x); });
+};
+/**
+ * Marks everything except given node(or nodes) as aria-hidden
+ * @param {Element | Element[]} originalTarget - elements to keep on the page
+ * @param [parentNode] - top element, defaults to document.body
+ * @param {String} [markerName] - a special attribute to mark every node
+ * @param {String} [controlAttribute] - html Attribute to control
+ * @return {Undo} undo command
+ */
+var applyAttributeToOthers = function (originalTarget, parentNode, markerName, controlAttribute) {
+    var targets = correctTargets(parentNode, Array.isArray(originalTarget) ? originalTarget : [originalTarget]);
+    if (!markerMap[markerName]) {
+        markerMap[markerName] = new WeakMap();
+    }
+    var markerCounter = markerMap[markerName];
+    var hiddenNodes = [];
+    var elementsToKeep = new Set();
+    var elementsToStop = new Set(targets);
+    var keep = function (el) {
+        if (!el || elementsToKeep.has(el)) {
+            return;
+        }
+        elementsToKeep.add(el);
+        keep(el.parentNode);
+    };
+    targets.forEach(keep);
+    var deep = function (parent) {
+        if (!parent || elementsToStop.has(parent)) {
+            return;
+        }
+        Array.prototype.forEach.call(parent.children, function (node) {
+            if (elementsToKeep.has(node)) {
+                deep(node);
+            }
+            else {
+                try {
+                    var attr = node.getAttribute(controlAttribute);
+                    var alreadyHidden = attr !== null && attr !== 'false';
+                    var counterValue = (counterMap.get(node) || 0) + 1;
+                    var markerValue = (markerCounter.get(node) || 0) + 1;
+                    counterMap.set(node, counterValue);
+                    markerCounter.set(node, markerValue);
+                    hiddenNodes.push(node);
+                    if (counterValue === 1 && alreadyHidden) {
+                        uncontrolledNodes.set(node, true);
+                    }
+                    if (markerValue === 1) {
+                        node.setAttribute(markerName, 'true');
+                    }
+                    if (!alreadyHidden) {
+                        node.setAttribute(controlAttribute, 'true');
+                    }
+                }
+                catch (e) {
+                    console.error('aria-hidden: cannot operate on ', node, e);
+                }
+            }
+        });
+    };
+    deep(parentNode);
+    elementsToKeep.clear();
+    lockCount++;
+    return function () {
+        hiddenNodes.forEach(function (node) {
+            var counterValue = counterMap.get(node) - 1;
+            var markerValue = markerCounter.get(node) - 1;
+            counterMap.set(node, counterValue);
+            markerCounter.set(node, markerValue);
+            if (!counterValue) {
+                if (!uncontrolledNodes.has(node)) {
+                    node.removeAttribute(controlAttribute);
+                }
+                uncontrolledNodes.delete(node);
+            }
+            if (!markerValue) {
+                node.removeAttribute(markerName);
+            }
+        });
+        lockCount--;
+        if (!lockCount) {
+            // clear
+            counterMap = new WeakMap();
+            counterMap = new WeakMap();
+            uncontrolledNodes = new WeakMap();
+            markerMap = {};
+        }
+    };
+};
+/**
+ * Marks everything except given node(or nodes) as aria-hidden
+ * @param {Element | Element[]} originalTarget - elements to keep on the page
+ * @param [parentNode] - top element, defaults to document.body
+ * @param {String} [markerName] - a special attribute to mark every node
+ * @return {Undo} undo command
+ */
+var hideOthers = function (originalTarget, parentNode, markerName) {
+    if (markerName === void 0) { markerName = 'data-aria-hidden'; }
+    var targets = Array.from(Array.isArray(originalTarget) ? originalTarget : [originalTarget]);
+    var activeParentNode = parentNode || getDefaultParent(originalTarget);
+    if (!activeParentNode) {
+        return function () { return null; };
+    }
+    // we should not hide aria-live elements - https://github.com/theKashey/aria-hidden/issues/10
+    // and script elements, as they have no impact on accessibility.
+    targets.push.apply(targets, Array.from(activeParentNode.querySelectorAll('[aria-live], script')));
+    return applyAttributeToOthers(targets, activeParentNode, markerName, 'aria-hidden');
+};
+exports.hideOthers = hideOthers;
+/**
+ * Marks everything except given node(or nodes) as inert
+ * @param {Element | Element[]} originalTarget - elements to keep on the page
+ * @param [parentNode] - top element, defaults to document.body
+ * @param {String} [markerName] - a special attribute to mark every node
+ * @return {Undo} undo command
+ */
+var inertOthers = function (originalTarget, parentNode, markerName) {
+    if (markerName === void 0) { markerName = 'data-inert-ed'; }
+    var activeParentNode = parentNode || getDefaultParent(originalTarget);
+    if (!activeParentNode) {
+        return function () { return null; };
+    }
+    return applyAttributeToOthers(originalTarget, activeParentNode, markerName, 'inert');
+};
+exports.inertOthers = inertOthers;
+/**
+ * @returns if current browser supports inert
+ */
+var supportsInert = function () {
+    return typeof HTMLElement !== 'undefined' && HTMLElement.prototype.hasOwnProperty('inert');
+};
+exports.supportsInert = supportsInert;
+/**
+ * Automatic function to "suppress" DOM elements - _hide_ or _inert_ in the best possible way
+ * @param {Element | Element[]} originalTarget - elements to keep on the page
+ * @param [parentNode] - top element, defaults to document.body
+ * @param {String} [markerName] - a special attribute to mark every node
+ * @return {Undo} undo command
+ */
+var suppressOthers = function (originalTarget, parentNode, markerName) {
+    if (markerName === void 0) { markerName = 'data-suppressed'; }
+    return ((0, exports.supportsInert)() ? exports.inertOthers : exports.hideOthers)(originalTarget, parentNode, markerName);
+};
+exports.suppressOthers = suppressOthers;