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WordPress/wp-includes/js/dist/dom.js
Gary Pendergast d13ae6300c Build Tools: Add an npm script shortcut to run grunt. 
Rather than needing to install grunt globally, this allows running grunt from `node_modules`, instead.

`npm run grunt ...` is effectively the equivalent of running `grunt ...`.

Props andrew.taylor.
See #45214.


Built from https://develop.svn.wordpress.org/branches/5.0@43836


git-svn-id: http://core.svn.wordpress.org/branches/5.0@43665 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2018-10-29 08:28:32 +00:00

1092 lines
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this["wp"] = this["wp"] || {}; this["wp"]["dom"] =
/******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId]) {
/******/ return installedModules[moduleId].exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ i: moduleId,
/******/ l: false,
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.l = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/
/******/ // define getter function for harmony exports
/******/ __webpack_require__.d = function(exports, name, getter) {
/******/ if(!__webpack_require__.o(exports, name)) {
/******/ Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ }
/******/ };
/******/
/******/ // define __esModule on exports
/******/ __webpack_require__.r = function(exports) {
/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ }
/******/ Object.defineProperty(exports, '__esModule', { value: true });
/******/ };
/******/
/******/ // create a fake namespace object
/******/ // mode & 1: value is a module id, require it
/******/ // mode & 2: merge all properties of value into the ns
/******/ // mode & 4: return value when already ns object
/******/ // mode & 8|1: behave like require
/******/ __webpack_require__.t = function(value, mode) {
/******/ if(mode & 1) value = __webpack_require__(value);
/******/ if(mode & 8) return value;
/******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ var ns = Object.create(null);
/******/ __webpack_require__.r(ns);
/******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ return ns;
/******/ };
/******/
/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __webpack_require__.n = function(module) {
/******/ var getter = module && module.__esModule ?
/******/ function getDefault() { return module['default']; } :
/******/ function getModuleExports() { return module; };
/******/ __webpack_require__.d(getter, 'a', getter);
/******/ return getter;
/******/ };
/******/
/******/ // Object.prototype.hasOwnProperty.call
/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "";
/******/
/******/
/******/ // Load entry module and return exports
/******/ return __webpack_require__(__webpack_require__.s = "./node_modules/@wordpress/dom/build-module/index.js");
/******/ })
/************************************************************************/
/******/ ({
/***/ "./node_modules/@babel/runtime/helpers/esm/arrayWithoutHoles.js":
/*!**********************************************************************!*\
!*** ./node_modules/@babel/runtime/helpers/esm/arrayWithoutHoles.js ***!
\**********************************************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return _arrayWithoutHoles; });
function _arrayWithoutHoles(arr) {
if (Array.isArray(arr)) {
for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) {
arr2[i] = arr[i];
}
return arr2;
}
}
/***/ }),
/***/ "./node_modules/@babel/runtime/helpers/esm/iterableToArray.js":
/*!********************************************************************!*\
!*** ./node_modules/@babel/runtime/helpers/esm/iterableToArray.js ***!
\********************************************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return _iterableToArray; });
function _iterableToArray(iter) {
if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
}
/***/ }),
/***/ "./node_modules/@babel/runtime/helpers/esm/nonIterableSpread.js":
/*!**********************************************************************!*\
!*** ./node_modules/@babel/runtime/helpers/esm/nonIterableSpread.js ***!
\**********************************************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return _nonIterableSpread; });
function _nonIterableSpread() {
throw new TypeError("Invalid attempt to spread non-iterable instance");
}
/***/ }),
/***/ "./node_modules/@babel/runtime/helpers/esm/toConsumableArray.js":
/*!**********************************************************************!*\
!*** ./node_modules/@babel/runtime/helpers/esm/toConsumableArray.js ***!
\**********************************************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return _toConsumableArray; });
/* harmony import */ var _arrayWithoutHoles__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./arrayWithoutHoles */ "./node_modules/@babel/runtime/helpers/esm/arrayWithoutHoles.js");
/* harmony import */ var _iterableToArray__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./iterableToArray */ "./node_modules/@babel/runtime/helpers/esm/iterableToArray.js");
/* harmony import */ var _nonIterableSpread__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./nonIterableSpread */ "./node_modules/@babel/runtime/helpers/esm/nonIterableSpread.js");
function _toConsumableArray(arr) {
return Object(_arrayWithoutHoles__WEBPACK_IMPORTED_MODULE_0__["default"])(arr) || Object(_iterableToArray__WEBPACK_IMPORTED_MODULE_1__["default"])(arr) || Object(_nonIterableSpread__WEBPACK_IMPORTED_MODULE_2__["default"])();
}
/***/ }),
/***/ "./node_modules/@wordpress/dom/build-module/dom.js":
/*!*********************************************************!*\
!*** ./node_modules/@wordpress/dom/build-module/dom.js ***!
\*********************************************************/
/*! exports provided: isHorizontalEdge, isVerticalEdge, getRectangleFromRange, computeCaretRect, placeCaretAtHorizontalEdge, placeCaretAtVerticalEdge, isTextField, documentHasSelection, isEntirelySelected, getScrollContainer, getOffsetParent, replace, remove, insertAfter, unwrap, replaceTag */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isHorizontalEdge", function() { return isHorizontalEdge; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isVerticalEdge", function() { return isVerticalEdge; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getRectangleFromRange", function() { return getRectangleFromRange; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "computeCaretRect", function() { return computeCaretRect; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "placeCaretAtHorizontalEdge", function() { return placeCaretAtHorizontalEdge; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "placeCaretAtVerticalEdge", function() { return placeCaretAtVerticalEdge; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isTextField", function() { return isTextField; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "documentHasSelection", function() { return documentHasSelection; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isEntirelySelected", function() { return isEntirelySelected; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getScrollContainer", function() { return getScrollContainer; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getOffsetParent", function() { return getOffsetParent; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "replace", function() { return replace; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "remove", function() { return remove; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "insertAfter", function() { return insertAfter; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "unwrap", function() { return unwrap; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "replaceTag", function() { return replaceTag; });
/* harmony import */ var lodash__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! lodash */ "lodash");
/* harmony import */ var lodash__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(lodash__WEBPACK_IMPORTED_MODULE_0__);
/**
* External dependencies
*/
/**
* Browser dependencies
*/
var _window = window,
getComputedStyle = _window.getComputedStyle;
var _window$Node = window.Node,
TEXT_NODE = _window$Node.TEXT_NODE,
ELEMENT_NODE = _window$Node.ELEMENT_NODE,
DOCUMENT_POSITION_PRECEDING = _window$Node.DOCUMENT_POSITION_PRECEDING,
DOCUMENT_POSITION_FOLLOWING = _window$Node.DOCUMENT_POSITION_FOLLOWING;
/**
* Returns true if the given selection object is in the forward direction, or
* false otherwise.
*
* @see https://developer.mozilla.org/en-US/docs/Web/API/Node/compareDocumentPosition
*
* @param {Selection} selection Selection object to check.
*
* @return {boolean} Whether the selection is forward.
*/
function isSelectionForward(selection) {
var anchorNode = selection.anchorNode,
focusNode = selection.focusNode,
anchorOffset = selection.anchorOffset,
focusOffset = selection.focusOffset;
var position = anchorNode.compareDocumentPosition(focusNode); // Disable reason: `Node#compareDocumentPosition` returns a bitmask value,
// so bitwise operators are intended.
/* eslint-disable no-bitwise */
// Compare whether anchor node precedes focus node. If focus node (where
// end of selection occurs) is after the anchor node, it is forward.
if (position & DOCUMENT_POSITION_PRECEDING) {
return false;
}
if (position & DOCUMENT_POSITION_FOLLOWING) {
return true;
}
/* eslint-enable no-bitwise */
// `compareDocumentPosition` returns 0 when passed the same node, in which
// case compare offsets.
if (position === 0) {
return anchorOffset <= focusOffset;
} // This should never be reached, but return true as default case.
return true;
}
/**
* Check whether the selection is horizontally at the edge of the container.
*
* @param {Element} container Focusable element.
* @param {boolean} isReverse Set to true to check left, false for right.
*
* @return {boolean} True if at the horizontal edge, false if not.
*/
function isHorizontalEdge(container, isReverse) {
if (Object(lodash__WEBPACK_IMPORTED_MODULE_0__["includes"])(['INPUT', 'TEXTAREA'], container.tagName)) {
if (container.selectionStart !== container.selectionEnd) {
return false;
}
if (isReverse) {
return container.selectionStart === 0;
}
return container.value.length === container.selectionStart;
}
if (!container.isContentEditable) {
return true;
}
var selection = window.getSelection(); // Create copy of range for setting selection to find effective offset.
var range = selection.getRangeAt(0).cloneRange(); // Collapse in direction of selection.
if (!selection.isCollapsed) {
range.collapse(!isSelectionForward(selection));
}
var node = range.startContainer;
var extentOffset;
if (isReverse) {
// When in reverse, range node should be first.
extentOffset = 0;
} else if (node.nodeValue) {
// Otherwise, vary by node type. A text node has no children. Its range
// offset reflects its position in nodeValue.
//
// "If the startContainer is a Node of type Text, Comment, or
// CDATASection, then the offset is the number of characters from the
// start of the startContainer to the boundary point of the Range."
//
// See: https://developer.mozilla.org/en-US/docs/Web/API/Range/startOffset
// See: https://developer.mozilla.org/en-US/docs/Web/API/Node/nodeValue
extentOffset = node.nodeValue.length;
} else {
// "For other Node types, the startOffset is the number of child nodes
// between the start of the startContainer and the boundary point of
// the Range."
//
// See: https://developer.mozilla.org/en-US/docs/Web/API/Range/startOffset
extentOffset = node.childNodes.length;
} // Offset of range should be at expected extent.
var position = isReverse ? 'start' : 'end';
var offset = range["".concat(position, "Offset")];
if (offset !== extentOffset) {
return false;
} // If confirmed to be at extent, traverse up through DOM, verifying that
// the node is at first or last child for reverse or forward respectively.
// Continue until container is reached.
var order = isReverse ? 'first' : 'last';
while (node !== container) {
var parentNode = node.parentNode;
if (parentNode["".concat(order, "Child")] !== node) {
return false;
}
node = parentNode;
} // If reached, range is assumed to be at edge.
return true;
}
/**
* Check whether the selection is vertically at the edge of the container.
*
* @param {Element} container Focusable element.
* @param {boolean} isReverse Set to true to check top, false for bottom.
*
* @return {boolean} True if at the edge, false if not.
*/
function isVerticalEdge(container, isReverse) {
if (Object(lodash__WEBPACK_IMPORTED_MODULE_0__["includes"])(['INPUT', 'TEXTAREA'], container.tagName)) {
return isHorizontalEdge(container, isReverse);
}
if (!container.isContentEditable) {
return true;
}
var selection = window.getSelection();
var range = selection.rangeCount ? selection.getRangeAt(0) : null;
if (!range) {
return false;
}
var rangeRect = getRectangleFromRange(range);
if (!rangeRect) {
return false;
}
var buffer = rangeRect.height / 2;
var editableRect = container.getBoundingClientRect(); // Too low.
if (isReverse && rangeRect.top - buffer > editableRect.top) {
return false;
} // Too high.
if (!isReverse && rangeRect.bottom + buffer < editableRect.bottom) {
return false;
}
return true;
}
/**
* Get the rectangle of a given Range.
*
* @param {Range} range The range.
*
* @return {DOMRect} The rectangle.
*/
function getRectangleFromRange(range) {
// For uncollapsed ranges, get the rectangle that bounds the contents of the
// range; this a rectangle enclosing the union of the bounding rectangles
// for all the elements in the range.
if (!range.collapsed) {
return range.getBoundingClientRect();
}
var rect = range.getClientRects()[0]; // If the collapsed range starts (and therefore ends) at an element node,
// `getClientRects` can be empty in some browsers. This can be resolved
// by adding a temporary text node with zero-width space to the range.
//
// See: https://stackoverflow.com/a/6847328/995445
if (!rect) {
var padNode = document.createTextNode("\u200B");
range.insertNode(padNode);
rect = range.getClientRects()[0];
padNode.parentNode.removeChild(padNode);
}
return rect;
}
/**
* Get the rectangle for the selection in a container.
*
* @param {Element} container Editable container.
*
* @return {?DOMRect} The rectangle.
*/
function computeCaretRect(container) {
if (!container.isContentEditable) {
return;
}
var selection = window.getSelection();
var range = selection.rangeCount ? selection.getRangeAt(0) : null;
if (!range) {
return;
}
return getRectangleFromRange(range);
}
/**
* Places the caret at start or end of a given element.
*
* @param {Element} container Focusable element.
* @param {boolean} isReverse True for end, false for start.
*/
function placeCaretAtHorizontalEdge(container, isReverse) {
if (!container) {
return;
}
if (Object(lodash__WEBPACK_IMPORTED_MODULE_0__["includes"])(['INPUT', 'TEXTAREA'], container.tagName)) {
container.focus();
if (isReverse) {
container.selectionStart = container.value.length;
container.selectionEnd = container.value.length;
} else {
container.selectionStart = 0;
container.selectionEnd = 0;
}
return;
}
container.focus();
if (!container.isContentEditable) {
return;
} // Select on extent child of the container, not the container itself. This
// avoids the selection always being `endOffset` of 1 when placed at end,
// where `startContainer`, `endContainer` would always be container itself.
var rangeTarget = container[isReverse ? 'lastChild' : 'firstChild']; // If no range target, it implies that the container is empty. Focusing is
// sufficient for caret to be placed correctly.
if (!rangeTarget) {
return;
}
var selection = window.getSelection();
var range = document.createRange();
range.selectNodeContents(rangeTarget);
range.collapse(!isReverse);
selection.removeAllRanges();
selection.addRange(range);
}
/**
* Polyfill.
* Get a collapsed range for a given point.
*
* @see https://developer.mozilla.org/en-US/docs/Web/API/Document/caretRangeFromPoint
*
* @param {Document} doc The document of the range.
* @param {number} x Horizontal position within the current viewport.
* @param {number} y Vertical position within the current viewport.
*
* @return {?Range} The best range for the given point.
*/
function caretRangeFromPoint(doc, x, y) {
if (doc.caretRangeFromPoint) {
return doc.caretRangeFromPoint(x, y);
}
if (!doc.caretPositionFromPoint) {
return null;
}
var point = doc.caretPositionFromPoint(x, y); // If x or y are negative, outside viewport, or there is no text entry node.
// https://developer.mozilla.org/en-US/docs/Web/API/Document/caretRangeFromPoint
if (!point) {
return null;
}
var range = doc.createRange();
range.setStart(point.offsetNode, point.offset);
range.collapse(true);
return range;
}
/**
* Get a collapsed range for a given point.
* Gives the container a temporary high z-index (above any UI).
* This is preferred over getting the UI nodes and set styles there.
*
* @param {Document} doc The document of the range.
* @param {number} x Horizontal position within the current viewport.
* @param {number} y Vertical position within the current viewport.
* @param {Element} container Container in which the range is expected to be found.
*
* @return {?Range} The best range for the given point.
*/
function hiddenCaretRangeFromPoint(doc, x, y, container) {
container.style.zIndex = '10000';
var range = caretRangeFromPoint(doc, x, y);
container.style.zIndex = null;
return range;
}
/**
* Places the caret at the top or bottom of a given element.
*
* @param {Element} container Focusable element.
* @param {boolean} isReverse True for bottom, false for top.
* @param {DOMRect} [rect] The rectangle to position the caret with.
* @param {boolean} [mayUseScroll=true] True to allow scrolling, false to disallow.
*/
function placeCaretAtVerticalEdge(container, isReverse, rect) {
var mayUseScroll = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : true;
if (!container) {
return;
}
if (!rect || !container.isContentEditable) {
placeCaretAtHorizontalEdge(container, isReverse);
return;
} // Offset by a buffer half the height of the caret rect. This is needed
// because caretRangeFromPoint may default to the end of the selection if
// offset is too close to the edge. It's unclear how to precisely calculate
// this threshold; it may be the padded area of some combination of line
// height, caret height, and font size. The buffer offset is effectively
// equivalent to a point at half the height of a line of text.
var buffer = rect.height / 2;
var editableRect = container.getBoundingClientRect();
var x = rect.left;
var y = isReverse ? editableRect.bottom - buffer : editableRect.top + buffer;
var selection = window.getSelection();
var range = hiddenCaretRangeFromPoint(document, x, y, container);
if (!range || !container.contains(range.startContainer)) {
if (mayUseScroll && (!range || !range.startContainer || !range.startContainer.contains(container))) {
// Might be out of view.
// Easier than attempting to calculate manually.
container.scrollIntoView(isReverse);
placeCaretAtVerticalEdge(container, isReverse, rect, false);
return;
}
placeCaretAtHorizontalEdge(container, isReverse);
return;
} // Check if the closest text node is actually further away.
// If so, attempt to get the range again with the y position adjusted to get the right offset.
if (range.startContainer.nodeType === TEXT_NODE) {
var parentNode = range.startContainer.parentNode;
var parentRect = parentNode.getBoundingClientRect();
var side = isReverse ? 'bottom' : 'top';
var padding = parseInt(getComputedStyle(parentNode).getPropertyValue("padding-".concat(side)), 10) || 0;
var actualY = isReverse ? parentRect.bottom - padding - buffer : parentRect.top + padding + buffer;
if (y !== actualY) {
range = hiddenCaretRangeFromPoint(document, x, actualY, container);
}
}
selection.removeAllRanges();
selection.addRange(range);
container.focus(); // Editable was already focussed, it goes back to old range...
// This fixes it.
selection.removeAllRanges();
selection.addRange(range);
}
/**
* Check whether the given element is a text field, where text field is defined
* by the ability to select within the input, or that it is contenteditable.
*
* See: https://html.spec.whatwg.org/#textFieldSelection
*
* @param {HTMLElement} element The HTML element.
*
* @return {boolean} True if the element is an text field, false if not.
*/
function isTextField(element) {
try {
var nodeName = element.nodeName,
selectionStart = element.selectionStart,
contentEditable = element.contentEditable;
return nodeName === 'INPUT' && selectionStart !== null || nodeName === 'TEXTAREA' || contentEditable === 'true';
} catch (error) {
// Safari throws an exception when trying to get `selectionStart`
// on non-text <input> elements (which, understandably, don't
// have the text selection API). We catch this via a try/catch
// block, as opposed to a more explicit check of the element's
// input types, because of Safari's non-standard behavior. This
// also means we don't have to worry about the list of input
// types that support `selectionStart` changing as the HTML spec
// evolves over time.
return false;
}
}
/**
* Check wether the current document has a selection.
* This checks both for focus in an input field and general text selection.
*
* @return {boolean} True if there is selection, false if not.
*/
function documentHasSelection() {
if (isTextField(document.activeElement)) {
return true;
}
var selection = window.getSelection();
var range = selection.rangeCount ? selection.getRangeAt(0) : null;
return range && !range.collapsed;
}
/**
* Check whether the contents of the element have been entirely selected.
* Returns true if there is no possibility of selection.
*
* @param {Element} element The element to check.
*
* @return {boolean} True if entirely selected, false if not.
*/
function isEntirelySelected(element) {
if (Object(lodash__WEBPACK_IMPORTED_MODULE_0__["includes"])(['INPUT', 'TEXTAREA'], element.nodeName)) {
return element.selectionStart === 0 && element.value.length === element.selectionEnd;
}
if (!element.isContentEditable) {
return true;
}
var selection = window.getSelection();
var range = selection.rangeCount ? selection.getRangeAt(0) : null;
if (!range) {
return true;
}
var startContainer = range.startContainer,
endContainer = range.endContainer,
startOffset = range.startOffset,
endOffset = range.endOffset;
return startContainer === element && endContainer === element && startOffset === 0 && endOffset === element.childNodes.length;
}
/**
* Given a DOM node, finds the closest scrollable container node.
*
* @param {Element} node Node from which to start.
*
* @return {?Element} Scrollable container node, if found.
*/
function getScrollContainer(node) {
if (!node) {
return;
} // Scrollable if scrollable height exceeds displayed...
if (node.scrollHeight > node.clientHeight) {
// ...except when overflow is defined to be hidden or visible
var _window$getComputedSt = window.getComputedStyle(node),
overflowY = _window$getComputedSt.overflowY;
if (/(auto|scroll)/.test(overflowY)) {
return node;
}
} // Continue traversing
return getScrollContainer(node.parentNode);
}
/**
* Returns the closest positioned element, or null under any of the conditions
* of the offsetParent specification. Unlike offsetParent, this function is not
* limited to HTMLElement and accepts any Node (e.g. Node.TEXT_NODE).
*
* @see https://drafts.csswg.org/cssom-view/#dom-htmlelement-offsetparent
*
* @param {Node} node Node from which to find offset parent.
*
* @return {?Node} Offset parent.
*/
function getOffsetParent(node) {
// Cannot retrieve computed style or offset parent only anything other than
// an element node, so find the closest element node.
var closestElement;
while (closestElement = node.parentNode) {
if (closestElement.nodeType === ELEMENT_NODE) {
break;
}
}
if (!closestElement) {
return null;
} // If the closest element is already positioned, return it, as offsetParent
// does not otherwise consider the node itself.
if (getComputedStyle(closestElement).position !== 'static') {
return closestElement;
}
return closestElement.offsetParent;
}
/**
* Given two DOM nodes, replaces the former with the latter in the DOM.
*
* @param {Element} processedNode Node to be removed.
* @param {Element} newNode Node to be inserted in its place.
* @return {void}
*/
function replace(processedNode, newNode) {
insertAfter(newNode, processedNode.parentNode);
remove(processedNode);
}
/**
* Given a DOM node, removes it from the DOM.
*
* @param {Element} node Node to be removed.
* @return {void}
*/
function remove(node) {
node.parentNode.removeChild(node);
}
/**
* Given two DOM nodes, inserts the former in the DOM as the next sibling of
* the latter.
*
* @param {Element} newNode Node to be inserted.
* @param {Element} referenceNode Node after which to perform the insertion.
* @return {void}
*/
function insertAfter(newNode, referenceNode) {
referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
}
/**
* Unwrap the given node. This means any child nodes are moved to the parent.
*
* @param {Node} node The node to unwrap.
*
* @return {void}
*/
function unwrap(node) {
var parent = node.parentNode;
while (node.firstChild) {
parent.insertBefore(node.firstChild, node);
}
parent.removeChild(node);
}
/**
* Replaces the given node with a new node with the given tag name.
*
* @param {Element} node The node to replace
* @param {string} tagName The new tag name.
* @param {Document} doc The document of the node.
*
* @return {Element} The new node.
*/
function replaceTag(node, tagName, doc) {
var newNode = doc.createElement(tagName);
while (node.firstChild) {
newNode.appendChild(node.firstChild);
}
node.parentNode.replaceChild(newNode, node);
return newNode;
}
/***/ }),
/***/ "./node_modules/@wordpress/dom/build-module/focusable.js":
/*!***************************************************************!*\
!*** ./node_modules/@wordpress/dom/build-module/focusable.js ***!
\***************************************************************/
/*! exports provided: find */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "find", function() { return find; });
/* harmony import */ var _babel_runtime_helpers_esm_toConsumableArray__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @babel/runtime/helpers/esm/toConsumableArray */ "./node_modules/@babel/runtime/helpers/esm/toConsumableArray.js");
/**
* References:
*
* Focusable:
* - https://www.w3.org/TR/html5/editing.html#focus-management
*
* Sequential focus navigation:
* - https://www.w3.org/TR/html5/editing.html#sequential-focus-navigation-and-the-tabindex-attribute
*
* Disabled elements:
* - https://www.w3.org/TR/html5/disabled-elements.html#disabled-elements
*
* getClientRects algorithm (requiring layout box):
* - https://www.w3.org/TR/cssom-view-1/#extension-to-the-element-interface
*
* AREA elements associated with an IMG:
* - https://w3c.github.io/html/editing.html#data-model
*/
var SELECTOR = ['[tabindex]', 'a[href]', 'button:not([disabled])', 'input:not([type="hidden"]):not([disabled])', 'select:not([disabled])', 'textarea:not([disabled])', 'iframe', 'object', 'embed', 'area[href]', '[contenteditable]:not([contenteditable=false])'].join(',');
/**
* Returns true if the specified element is visible (i.e. neither display: none
* nor visibility: hidden).
*
* @param {Element} element DOM element to test.
*
* @return {boolean} Whether element is visible.
*/
function isVisible(element) {
return element.offsetWidth > 0 || element.offsetHeight > 0 || element.getClientRects().length > 0;
}
/**
* Returns true if the specified area element is a valid focusable element, or
* false otherwise. Area is only focusable if within a map where a named map
* referenced by an image somewhere in the document.
*
* @param {Element} element DOM area element to test.
*
* @return {boolean} Whether area element is valid for focus.
*/
function isValidFocusableArea(element) {
var map = element.closest('map[name]');
if (!map) {
return false;
}
var img = document.querySelector('img[usemap="#' + map.name + '"]');
return !!img && isVisible(img);
}
/**
* Returns all focusable elements within a given context.
*
* @param {Element} context Element in which to search.
*
* @return {Element[]} Focusable elements.
*/
function find(context) {
var elements = context.querySelectorAll(SELECTOR);
return Object(_babel_runtime_helpers_esm_toConsumableArray__WEBPACK_IMPORTED_MODULE_0__["default"])(elements).filter(function (element) {
if (!isVisible(element)) {
return false;
}
var nodeName = element.nodeName;
if ('AREA' === nodeName) {
return isValidFocusableArea(element);
}
return true;
});
}
/***/ }),
/***/ "./node_modules/@wordpress/dom/build-module/index.js":
/*!***********************************************************!*\
!*** ./node_modules/@wordpress/dom/build-module/index.js ***!
\***********************************************************/
/*! exports provided: focus, isHorizontalEdge, isVerticalEdge, getRectangleFromRange, computeCaretRect, placeCaretAtHorizontalEdge, placeCaretAtVerticalEdge, isTextField, documentHasSelection, isEntirelySelected, getScrollContainer, getOffsetParent, replace, remove, insertAfter, unwrap, replaceTag */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "focus", function() { return focus; });
/* harmony import */ var _focusable__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./focusable */ "./node_modules/@wordpress/dom/build-module/focusable.js");
/* harmony import */ var _tabbable__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./tabbable */ "./node_modules/@wordpress/dom/build-module/tabbable.js");
/* harmony import */ var _dom__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./dom */ "./node_modules/@wordpress/dom/build-module/dom.js");
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "isHorizontalEdge", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["isHorizontalEdge"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "isVerticalEdge", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["isVerticalEdge"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getRectangleFromRange", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["getRectangleFromRange"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "computeCaretRect", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["computeCaretRect"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "placeCaretAtHorizontalEdge", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["placeCaretAtHorizontalEdge"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "placeCaretAtVerticalEdge", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["placeCaretAtVerticalEdge"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "isTextField", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["isTextField"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "documentHasSelection", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["documentHasSelection"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "isEntirelySelected", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["isEntirelySelected"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getScrollContainer", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["getScrollContainer"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "getOffsetParent", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["getOffsetParent"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "replace", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["replace"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "remove", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["remove"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "insertAfter", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["insertAfter"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "unwrap", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["unwrap"]; });
/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, "replaceTag", function() { return _dom__WEBPACK_IMPORTED_MODULE_2__["replaceTag"]; });
/**
* Internal dependencies
*/
var focus = {
focusable: _focusable__WEBPACK_IMPORTED_MODULE_0__,
tabbable: _tabbable__WEBPACK_IMPORTED_MODULE_1__
};
/***/ }),
/***/ "./node_modules/@wordpress/dom/build-module/tabbable.js":
/*!**************************************************************!*\
!*** ./node_modules/@wordpress/dom/build-module/tabbable.js ***!
\**************************************************************/
/*! exports provided: isTabbableIndex, find */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isTabbableIndex", function() { return isTabbableIndex; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "find", function() { return find; });
/* harmony import */ var _focusable__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./focusable */ "./node_modules/@wordpress/dom/build-module/focusable.js");
/**
* Internal dependencies
*/
/**
* Returns the tab index of the given element. In contrast with the tabIndex
* property, this normalizes the default (0) to avoid browser inconsistencies,
* operating under the assumption that this function is only ever called with a
* focusable node.
*
* @see https://bugzilla.mozilla.org/show_bug.cgi?id=1190261
*
* @param {Element} element Element from which to retrieve.
*
* @return {?number} Tab index of element (default 0).
*/
function getTabIndex(element) {
var tabIndex = element.getAttribute('tabindex');
return tabIndex === null ? 0 : parseInt(tabIndex, 10);
}
/**
* Returns true if the specified element is tabbable, or false otherwise.
*
* @param {Element} element Element to test.
*
* @return {boolean} Whether element is tabbable.
*/
function isTabbableIndex(element) {
return getTabIndex(element) !== -1;
}
/**
* An array map callback, returning an object with the element value and its
* array index location as properties. This is used to emulate a proper stable
* sort where equal tabIndex should be left in order of their occurrence in the
* document.
*
* @param {Element} element Element.
* @param {number} index Array index of element.
*
* @return {Object} Mapped object with element, index.
*/
function mapElementToObjectTabbable(element, index) {
return {
element: element,
index: index
};
}
/**
* An array map callback, returning an element of the given mapped object's
* element value.
*
* @param {Object} object Mapped object with index.
*
* @return {Element} Mapped object element.
*/
function mapObjectTabbableToElement(object) {
return object.element;
}
/**
* A sort comparator function used in comparing two objects of mapped elements.
*
* @see mapElementToObjectTabbable
*
* @param {Object} a First object to compare.
* @param {Object} b Second object to compare.
*
* @return {number} Comparator result.
*/
function compareObjectTabbables(a, b) {
var aTabIndex = getTabIndex(a.element);
var bTabIndex = getTabIndex(b.element);
if (aTabIndex === bTabIndex) {
return a.index - b.index;
}
return aTabIndex - bTabIndex;
}
function find(context) {
return Object(_focusable__WEBPACK_IMPORTED_MODULE_0__["find"])(context).filter(isTabbableIndex).map(mapElementToObjectTabbable).sort(compareObjectTabbables).map(mapObjectTabbableToElement);
}
/***/ }),
/***/ "lodash":
/*!*************************!*\
!*** external "lodash" ***!
\*************************/
/*! no static exports found */
/***/ (function(module, exports) {
(function() { module.exports = this["lodash"]; }());
/***/ })
/******/ });
//# sourceMappingURL=dom.js.map
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