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import _classCallCheck from "@babel/runtime/helpers/esm/classCallCheck";
import _createClass from "@babel/runtime/helpers/esm/createClass";
import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
import getScrollbarSize from '../utils/getScrollbarSize';
import ownerDocument from '../utils/ownerDocument';
import ownerWindow from '../utils/ownerWindow'; // Is a vertical scrollbar displayed?
function isOverflowing(container) {
var doc = ownerDocument(container);
if (doc.body === container) {
return ownerWindow(doc).innerWidth > doc.documentElement.clientWidth;
}
return container.scrollHeight > container.clientHeight;
}
export function ariaHidden(node, show) {
if (show) {
node.setAttribute('aria-hidden', 'true');
} else {
node.removeAttribute('aria-hidden');
}
}
function getPaddingRight(node) {
return parseInt(window.getComputedStyle(node)['padding-right'], 10) || 0;
}
function ariaHiddenSiblings(container, mountNode, currentNode) {
var nodesToExclude = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : [];
var show = arguments.length > 4 ? arguments[4] : undefined;
var blacklist = [mountNode, currentNode].concat(_toConsumableArray(nodesToExclude));
var blacklistTagNames = ['TEMPLATE', 'SCRIPT', 'STYLE'];
[].forEach.call(container.children, function (node) {
if (node.nodeType === 1 && blacklist.indexOf(node) === -1 && blacklistTagNames.indexOf(node.tagName) === -1) {
ariaHidden(node, show);
}
});
}
function findIndexOf(containerInfo, callback) {
var idx = -1;
containerInfo.some(function (item, index) {
if (callback(item)) {
idx = index;
return true;
}
return false;
});
return idx;
}
function handleContainer(containerInfo, props) {
var restoreStyle = [];
var restorePaddings = [];
var container = containerInfo.container;
var fixedNodes;
if (!props.disableScrollLock) {
if (isOverflowing(container)) {
// Compute the size before applying overflow hidden to avoid any scroll jumps.
var scrollbarSize = getScrollbarSize();
restoreStyle.push({
value: container.style.paddingRight,
key: 'padding-right',
el: container
}); // Use computed style, here to get the real padding to add our scrollbar width.
container.style['padding-right'] = "".concat(getPaddingRight(container) + scrollbarSize, "px"); // .mui-fixed is a global helper.
fixedNodes = ownerDocument(container).querySelectorAll('.mui-fixed');
[].forEach.call(fixedNodes, function (node) {
restorePaddings.push(node.style.paddingRight);
node.style.paddingRight = "".concat(getPaddingRight(node) + scrollbarSize, "px");
});
} // Improve Gatsby support
// https://css-tricks.com/snippets/css/force-vertical-scrollbar/
var parent = container.parentElement;
var scrollContainer = parent.nodeName === 'HTML' && window.getComputedStyle(parent)['overflow-y'] === 'scroll' ? parent : container; // Block the scroll even if no scrollbar is visible to account for mobile keyboard
// screensize shrink.
restoreStyle.push({
value: scrollContainer.style.overflow,
key: 'overflow',
el: scrollContainer
});
scrollContainer.style.overflow = 'hidden';
}
var restore = function restore() {
if (fixedNodes) {
[].forEach.call(fixedNodes, function (node, i) {
if (restorePaddings[i]) {
node.style.paddingRight = restorePaddings[i];
} else {
node.style.removeProperty('padding-right');
}
});
}
restoreStyle.forEach(function (_ref) {
var value = _ref.value,
el = _ref.el,
key = _ref.key;
if (value) {
el.style.setProperty(key, value);
} else {
el.style.removeProperty(key);
}
});
};
return restore;
}
function getHiddenSiblings(container) {
var hiddenSiblings = [];
[].forEach.call(container.children, function (node) {
if (node.getAttribute && node.getAttribute('aria-hidden') === 'true') {
hiddenSiblings.push(node);
}
});
return hiddenSiblings;
}
/**
* @ignore - do not document.
*
* Proper state management for containers and the modals in those containers.
* Simplified, but inspired by react-overlay's ModalManager class.
* Used by the Modal to ensure proper styling of containers.
*/
var ModalManager = /*#__PURE__*/function () {
function ModalManager() {
_classCallCheck(this, ModalManager);
// this.modals[modalIndex] = modal
this.modals = []; // this.containers[containerIndex] = {
// modals: [],
// container,
// restore: null,
// }
this.containers = [];
}
_createClass(ModalManager, [{
key: "add",
value: function add(modal, container) {
var modalIndex = this.modals.indexOf(modal);
if (modalIndex !== -1) {
return modalIndex;
}
modalIndex = this.modals.length;
this.modals.push(modal); // If the modal we are adding is already in the DOM.
if (modal.modalRef) {
ariaHidden(modal.modalRef, false);
}
var hiddenSiblingNodes = getHiddenSiblings(container);
ariaHiddenSiblings(container, modal.mountNode, modal.modalRef, hiddenSiblingNodes, true);
var containerIndex = findIndexOf(this.containers, function (item) {
return item.container === container;
});
if (containerIndex !== -1) {
this.containers[containerIndex].modals.push(modal);
return modalIndex;
}
this.containers.push({
modals: [modal],
container: container,
restore: null,
hiddenSiblingNodes: hiddenSiblingNodes
});
return modalIndex;
}
}, {
key: "mount",
value: function mount(modal, props) {
var containerIndex = findIndexOf(this.containers, function (item) {
return item.modals.indexOf(modal) !== -1;
});
var containerInfo = this.containers[containerIndex];
if (!containerInfo.restore) {
containerInfo.restore = handleContainer(containerInfo, props);
}
}
}, {
key: "remove",
value: function remove(modal) {
var modalIndex = this.modals.indexOf(modal);
if (modalIndex === -1) {
return modalIndex;
}
var containerIndex = findIndexOf(this.containers, function (item) {
return item.modals.indexOf(modal) !== -1;
});
var containerInfo = this.containers[containerIndex];
containerInfo.modals.splice(containerInfo.modals.indexOf(modal), 1);
this.modals.splice(modalIndex, 1); // If that was the last modal in a container, clean up the container.
if (containerInfo.modals.length === 0) {
// The modal might be closed before it had the chance to be mounted in the DOM.
if (containerInfo.restore) {
containerInfo.restore();
}
if (modal.modalRef) {
// In case the modal wasn't in the DOM yet.
ariaHidden(modal.modalRef, true);
}
ariaHiddenSiblings(containerInfo.container, modal.mountNode, modal.modalRef, containerInfo.hiddenSiblingNodes, false);
this.containers.splice(containerIndex, 1);
} else {
// Otherwise make sure the next top modal is visible to a screen reader.
var nextTop = containerInfo.modals[containerInfo.modals.length - 1]; // as soon as a modal is adding its modalRef is undefined. it can't set
// aria-hidden because the dom element doesn't exist either
// when modal was unmounted before modalRef gets null
if (nextTop.modalRef) {
ariaHidden(nextTop.modalRef, false);
}
}
return modalIndex;
}
}, {
key: "isTopModal",
value: function isTopModal(modal) {
return this.modals.length > 0 && this.modals[this.modals.length - 1] === modal;
}
}]);
return ModalManager;
}();
export { ModalManager as default };
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