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Edit File : dom.js \| Size : 37.66 KB
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 = 462); /**/ }) /********************************************************************/ /**/ ({ // 2: // (function(module, exports) { (function() { module.exports = this["lodash"]; }()); // }), // 462: // (function(module, __webpack_exports__, __webpack_require__) { "use strict"; // ESM COMPAT FLAG __webpack_require__.r(__webpack_exports__); // EXPORTS __webpack_require__.d(__webpack_exports__, "focus", function() { return / binding / build_module_focus; }); __webpack_require__.d(__webpack_exports__, "isHorizontalEdge", function() { return / reexport / isHorizontalEdge; }); __webpack_require__.d(__webpack_exports__, "isVerticalEdge", function() { return / reexport / isVerticalEdge; }); __webpack_require__.d(__webpack_exports__, "getRectangleFromRange", function() { return / reexport / getRectangleFromRange; }); __webpack_require__.d(__webpack_exports__, "computeCaretRect", function() { return / reexport / computeCaretRect; }); __webpack_require__.d(__webpack_exports__, "placeCaretAtHorizontalEdge", function() { return / reexport / placeCaretAtHorizontalEdge; }); __webpack_require__.d(__webpack_exports__, "placeCaretAtVerticalEdge", function() { return / reexport / placeCaretAtVerticalEdge; }); __webpack_require__.d(__webpack_exports__, "isTextField", function() { return / reexport / isTextField; }); __webpack_require__.d(__webpack_exports__, "isNumberInput", function() { return / reexport / isNumberInput; }); __webpack_require__.d(__webpack_exports__, "documentHasTextSelection", function() { return / reexport / documentHasTextSelection; }); __webpack_require__.d(__webpack_exports__, "documentHasUncollapsedSelection", function() { return / reexport / documentHasUncollapsedSelection; }); __webpack_require__.d(__webpack_exports__, "documentHasSelection", function() { return / reexport / documentHasSelection; }); __webpack_require__.d(__webpack_exports__, "isEntirelySelected", function() { return / reexport / isEntirelySelected; }); __webpack_require__.d(__webpack_exports__, "getScrollContainer", function() { return / reexport / getScrollContainer; }); __webpack_require__.d(__webpack_exports__, "getOffsetParent", function() { return / reexport / getOffsetParent; }); __webpack_require__.d(__webpack_exports__, "replace", function() { return / reexport / replace; }); __webpack_require__.d(__webpack_exports__, "remove", function() { return / reexport / remove; }); __webpack_require__.d(__webpack_exports__, "insertAfter", function() { return / reexport / insertAfter; }); __webpack_require__.d(__webpack_exports__, "unwrap", function() { return / reexport / unwrap; }); __webpack_require__.d(__webpack_exports__, "replaceTag", function() { return / reexport / replaceTag; }); __webpack_require__.d(__webpack_exports__, "wrap", function() { return / reexport / wrap; }); __webpack_require__.d(__webpack_exports__, "__unstableStripHTML", function() { return / reexport / __unstableStripHTML; }); // NAMESPACE OBJECT: ./node_modules/@wordpress/dom/build-module/focusable.js var focusable_namespaceObject = {}; __webpack_require__.r(focusable_namespaceObject); __webpack_require__.d(focusable_namespaceObject, "find", function() { return find; }); // NAMESPACE OBJECT: ./node_modules/@wordpress/dom/build-module/tabbable.js var tabbable_namespaceObject = {}; __webpack_require__.r(tabbable_namespaceObject); __webpack_require__.d(tabbable_namespaceObject, "isTabbableIndex", function() { return isTabbableIndex; }); __webpack_require__.d(tabbable_namespaceObject, "find", function() { return tabbable_find; }); __webpack_require__.d(tabbable_namespaceObject, "findPrevious", function() { return findPrevious; }); __webpack_require__.d(tabbable_namespaceObject, "findNext", function() { return findNext; }); // CONCATENATED MODULE: ./node_modules/@wordpress/dom/build-module/focusable.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 element should be skipped from focusable elements. * For now it rather specific for `iframes` and if tabindex attribute is set to -1. * * @param {Element} element DOM element to test. * * @return {boolean} Whether element should be skipped from focusable elements. / function skipFocus(element) { return element.nodeName.toLowerCase() === 'iframe' && element.getAttribute('tabindex') === '-1'; } /* * 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 Array.from(elements).filter(function (element) { if (!isVisible(element) \|\| skipFocus(element)) { return false; } var nodeName = element.nodeName; if ('AREA' === nodeName) { return isValidFocusableArea(element); } return true; }); } // EXTERNAL MODULE: external {"this":"lodash"} var external_this_lodash_ = __webpack_require__(2); // CONCATENATED MODULE: ./node_modules/@wordpress/dom/build-module/tabbable.js /* * External dependencies / /* * 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; } /* * Returns a stateful reducer function which constructs a filtered array of * tabbable elements, where at most one radio input is selected for a given * name, giving priority to checked input, falling back to the first * encountered. * * @return {Function} Radio group collapse reducer. / function createStatefulCollapseRadioGroup() { var CHOSEN_RADIO_BY_NAME = {}; return function collapseRadioGroup(result, element) { var nodeName = element.nodeName, type = element.type, checked = element.checked, name = element.name; // For all non-radio tabbables, construct to array by concatenating. if (nodeName !== 'INPUT' \|\| type !== 'radio' \|\| !name) { return result.concat(element); } var hasChosen = CHOSEN_RADIO_BY_NAME.hasOwnProperty(name); // Omit by skipping concatenation if the radio element is not chosen. var isChosen = checked \|\| !hasChosen; if (!isChosen) { return result; } // At this point, if there had been a chosen element, the current // element is checked and should take priority. Retroactively remove // the element which had previously been considered the chosen one. if (hasChosen) { var hadChosenElement = CHOSEN_RADIO_BY_NAME[name]; result = Object(external_this_lodash_["without"])(result, hadChosenElement); } CHOSEN_RADIO_BY_NAME[name] = element; return result.concat(element); }; } /* * 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; } /* * Givin focusable elements, filters out tabbable element. * * @param {Array} focusables Focusable elements to filter. * * @return {Array} Tabbable elements. / function filterTabbable(focusables) { return focusables.filter(isTabbableIndex).map(mapElementToObjectTabbable).sort(compareObjectTabbables).map(mapObjectTabbableToElement).reduce(createStatefulCollapseRadioGroup(), []); } function tabbable_find(context) { return filterTabbable(find(context)); } /* * Given a focusable element, find the preceding tabbable element. * * @param {Element} element The focusable element before which to look. Defaults * to the active element. / function findPrevious() { var element = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : document.activeElement; var focusables = find(document.body); var index = focusables.indexOf(element); // Remove all focusables after and including `element`. focusables.length = index; return Object(external_this_lodash_["last"])(filterTabbable(focusables)); } /* * Given a focusable element, find the next tabbable element. * * @param {Element} element The focusable element after which to look. Defaults * to the active element. / function findNext() { var element = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : document.activeElement; var focusables = find(document.body); var index = focusables.indexOf(element); // Remove all focusables before and inside `element`. var remaining = focusables.slice(index + 1).filter(function (node) { return !element.contains(node); }); return Object(external_this_lodash_["first"])(filterTabbable(remaining)); } // CONCATENATED MODULE: ./node_modules/@wordpress/dom/build-module/dom.js /* * External dependencies / /* * Browser dependencies / var _window = window, DOMParser = _window.DOMParser, 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 at the edge of the container. Checks for * horizontal position by default. Set `onlyVertical` to true to check only * vertically. * * @param {Element} container Focusable element. * @param {boolean} isReverse Set to true to check left, false to check right. * @param {boolean} onlyVertical Set to true to check only vertical position. * * @return {boolean} True if at the edge, false if not. / function isEdge(container, isReverse, onlyVertical) { if (Object(external_this_lodash_["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(); if (!selection.rangeCount) { return false; } var originalRange = selection.getRangeAt(0); var range = originalRange.cloneRange(); var isForward = isSelectionForward(selection); var isCollapsed = selection.isCollapsed; // Collapse in direction of selection. if (!isCollapsed) { range.collapse(!isForward); } var rangeRect = getRectangleFromRange(range); if (!rangeRect) { return false; } var computedStyle = window.getComputedStyle(container); var lineHeight = parseInt(computedStyle.lineHeight, 10) \|\| 0; // Only consider the multiline selection at the edge if the direction is // towards the edge. if (!isCollapsed && rangeRect.height > lineHeight && isForward === isReverse) { return false; } var padding = parseInt(computedStyle["padding".concat(isReverse ? 'Top' : 'Bottom')], 10) \|\| 0; // Calculate a buffer that is half the line height. In some browsers, the // selection rectangle may not fill the entire height of the line, so we add // 3/4 the line height to the selection rectangle to ensure that it is well // over its line boundary. var buffer = 3 parseInt(lineHeight, 10) / 4; var containerRect = container.getBoundingClientRect(); var originalRangeRect = getRectangleFromRange(originalRange); var verticalEdge = isReverse ? containerRect.top + padding > originalRangeRect.top - buffer : containerRect.bottom - padding < originalRangeRect.bottom + buffer; if (!verticalEdge) { return false; } if (onlyVertical) { return true; } // In the case of RTL scripts, the horizontal edge is at the opposite side. var direction = computedStyle.direction; var isReverseDir = direction === 'rtl' ? !isReverse : isReverse; // To calculate the horizontal position, we insert a test range and see if // this test range has the same horizontal position. This method proves to // be better than a DOM-based calculation, because it ignores empty text // nodes and a trailing line break element. In other words, we need to check // visual positioning, not DOM positioning. var x = isReverseDir ? containerRect.left + 1 : containerRect.right - 1; var y = isReverse ? containerRect.top + buffer : containerRect.bottom - buffer; var testRange = hiddenCaretRangeFromPoint(document, x, y, container); if (!testRange) { return false; } var side = isReverseDir ? 'left' : 'right'; var testRect = getRectangleFromRange(testRange); // Allow the position to be 1px off. return Math.abs(testRect[side] - rangeRect[side]) <= 1; } /** * 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) { return isEdge(container, isReverse); } /* * 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 vertical edge, false if not. / function isVerticalEdge(container, isReverse) { return isEdge(container, isReverse, 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 _range = range, startContainer = _range.startContainer; // Correct invalid "BR" ranges. The cannot contain any children. if (startContainer.nodeName === 'BR') { var parentNode = startContainer.parentNode; var index = Array.from(parentNode.childNodes).indexOf(startContainer); range = document.createRange(); range.setStart(parentNode, index); range.setEnd(parentNode, index); } 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"); // Do not modify the live range. range = range.cloneRange(); range.insertNode(padNode); rect = range.getClientRects()[0]; padNode.parentNode.removeChild(padNode); } return rect; } /* * Get the rectangle for the selection in a container. * * @return {?DOMRect} The rectangle. / function computeCaretRect() { 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(external_this_lodash_["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) { var originalZIndex = container.style.zIndex; var originalPosition = container.style.position; // A z-index only works if the element position is not static. container.style.zIndex = '10000'; container.style.position = 'relative'; var range = caretRangeFromPoint(doc, x, y); container.style.zIndex = originalZIndex; container.style.position = originalPosition; 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 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; } var selection = window.getSelection(); 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) { var nodeName = element.nodeName, contentEditable = element.contentEditable; var nonTextInputs = ['button', 'checkbox', 'hidden', 'file', 'radio', 'image', 'range', 'reset', 'submit', 'number']; return nodeName === 'INPUT' && !nonTextInputs.includes(element.type) \|\| nodeName === 'TEXTAREA' \|\| contentEditable === 'true'; } /* * Check whether the given element is an input field of type number * and has a valueAsNumber * * @param {HTMLElement} element The HTML element. * * @return {boolean} True if the element is input and holds a number. / function isNumberInput(element) { var nodeName = element.nodeName, type = element.type, valueAsNumber = element.valueAsNumber; return nodeName === 'INPUT' && type === 'number' && !!valueAsNumber; } /* * Check whether the current document has selected text. This applies to ranges * of text in the document, and not selection inside <input> and <textarea> * elements. * * See: https://developer.mozilla.org/en-US/docs/Web/API/Window/getSelection#Related_objects. * * @return {boolean} True if there is selection, false if not. / function documentHasTextSelection() { var selection = window.getSelection(); var range = selection.rangeCount ? selection.getRangeAt(0) : null; return range && !range.collapsed; } /* * Check whether the given element, assumed an input field or textarea, * contains a (uncollapsed) selection of text. * * Note: this is perhaps an abuse of the term "selection", since these elements * manage selection differently and aren't covered by Selection#collapsed. * * See: https://developer.mozilla.org/en-US/docs/Web/API/Window/getSelection#Related_objects. * * @param {HTMLElement} element The HTML element. * * @return {boolean} Whether the input/textareaa element has some "selection". / function inputFieldHasUncollapsedSelection(element) { if (!isTextField(element) && !isNumberInput(element)) { return false; } try { var selectionStart = element.selectionStart, selectionEnd = element.selectionEnd; return selectionStart !== null && selectionStart !== selectionEnd; } 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 whether the current document has any sort of selection. This includes * ranges of text across elements and any selection inside <input> and * <textarea> elements. * * @return {boolean} Whether there is any sort of "selection" in the document. / function documentHasUncollapsedSelection() { return documentHasTextSelection() \|\| inputFieldHasUncollapsedSelection(document.activeElement); } /* * Check whether the current document has a selection. This checks for both * focus in an input field and general text selection. * * @return {boolean} True if there is selection, false if not. / function documentHasSelection() { return isTextField(document.activeElement) \|\| isNumberInput(document.activeElement) \|\| documentHasTextSelection(); } /* * 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(external_this_lodash_["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; if (startContainer === element && endContainer === element && startOffset === 0 && endOffset === element.childNodes.length) { return true; } var lastChild = element.lastChild; var lastChildContentLength = lastChild.nodeType === TEXT_NODE ? lastChild.data.length : lastChild.childNodes.length; return startContainer === element.firstChild && endContainer === element.lastChild && startOffset === 0 && endOffset === lastChildContentLength; } /* * 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. * * @return {Element} The new node. / function replaceTag(node, tagName) { var newNode = node.ownerDocument.createElement(tagName); while (node.firstChild) { newNode.appendChild(node.firstChild); } node.parentNode.replaceChild(newNode, node); return newNode; } /* * Wraps the given node with a new node with the given tag name. * * @param {Element} newNode The node to insert. * @param {Element} referenceNode The node to wrap. / function wrap(newNode, referenceNode) { referenceNode.parentNode.insertBefore(newNode, referenceNode); newNode.appendChild(referenceNode); } /* * Removes any HTML tags from the provided string. * * @param {string} html The string containing html. * * @return {string} The text content with any html removed. / function __unstableStripHTML(html) { var document = new DOMParser().parseFromString(html, 'text/html'); return document.body.textContent \|\| ''; } // CONCATENATED MODULE: ./node_modules/@wordpress/dom/build-module/index.js /* * Internal dependencies / /* * Object grouping `focusable` and `tabbable` utils * under the keys with the same name. / var build_module_focus = { focusable: focusable_namespaceObject, tabbable: tabbable_namespaceObject }; // }) /****/ }); Back

Edit File : dom.js | Size : 37.66 KB

this["wp"] = this["wp"] || {}; this["wp"]["dom"] =
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/***/ 2:
/***/ (function(module, exports) {

(function() { module.exports = this["lodash"]; }());

/***/ }),

/***/ 462:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
// ESM COMPAT FLAG
__webpack_require__.r(__webpack_exports__);

// EXPORTS
__webpack_require__.d(__webpack_exports__, "focus", function() { return /* binding */ build_module_focus; });
__webpack_require__.d(__webpack_exports__, "isHorizontalEdge", function() { return /* reexport */ isHorizontalEdge; });
__webpack_require__.d(__webpack_exports__, "isVerticalEdge", function() { return /* reexport */ isVerticalEdge; });
__webpack_require__.d(__webpack_exports__, "getRectangleFromRange", function() { return /* reexport */ getRectangleFromRange; });
__webpack_require__.d(__webpack_exports__, "computeCaretRect", function() { return /* reexport */ computeCaretRect; });
__webpack_require__.d(__webpack_exports__, "placeCaretAtHorizontalEdge", function() { return /* reexport */ placeCaretAtHorizontalEdge; });
__webpack_require__.d(__webpack_exports__, "placeCaretAtVerticalEdge", function() { return /* reexport */ placeCaretAtVerticalEdge; });
__webpack_require__.d(__webpack_exports__, "isTextField", function() { return /* reexport */ isTextField; });
__webpack_require__.d(__webpack_exports__, "isNumberInput", function() { return /* reexport */ isNumberInput; });
__webpack_require__.d(__webpack_exports__, "documentHasTextSelection", function() { return /* reexport */ documentHasTextSelection; });
__webpack_require__.d(__webpack_exports__, "documentHasUncollapsedSelection", function() { return /* reexport */ documentHasUncollapsedSelection; });
__webpack_require__.d(__webpack_exports__, "documentHasSelection", function() { return /* reexport */ documentHasSelection; });
__webpack_require__.d(__webpack_exports__, "isEntirelySelected", function() { return /* reexport */ isEntirelySelected; });
__webpack_require__.d(__webpack_exports__, "getScrollContainer", function() { return /* reexport */ getScrollContainer; });
__webpack_require__.d(__webpack_exports__, "getOffsetParent", function() { return /* reexport */ getOffsetParent; });
__webpack_require__.d(__webpack_exports__, "replace", function() { return /* reexport */ replace; });
__webpack_require__.d(__webpack_exports__, "remove", function() { return /* reexport */ remove; });
__webpack_require__.d(__webpack_exports__, "insertAfter", function() { return /* reexport */ insertAfter; });
__webpack_require__.d(__webpack_exports__, "unwrap", function() { return /* reexport */ unwrap; });
__webpack_require__.d(__webpack_exports__, "replaceTag", function() { return /* reexport */ replaceTag; });
__webpack_require__.d(__webpack_exports__, "wrap", function() { return /* reexport */ wrap; });
__webpack_require__.d(__webpack_exports__, "__unstableStripHTML", function() { return /* reexport */ __unstableStripHTML; });

// NAMESPACE OBJECT: ./node_modules/@wordpress/dom/build-module/focusable.js
var focusable_namespaceObject = {};
__webpack_require__.r(focusable_namespaceObject);
__webpack_require__.d(focusable_namespaceObject, "find", function() { return find; });

// NAMESPACE OBJECT: ./node_modules/@wordpress/dom/build-module/tabbable.js
var tabbable_namespaceObject = {};
__webpack_require__.r(tabbable_namespaceObject);
__webpack_require__.d(tabbable_namespaceObject, "isTabbableIndex", function() { return isTabbableIndex; });
__webpack_require__.d(tabbable_namespaceObject, "find", function() { return tabbable_find; });
__webpack_require__.d(tabbable_namespaceObject, "findPrevious", function() { return findPrevious; });
__webpack_require__.d(tabbable_namespaceObject, "findNext", function() { return findNext; });

// CONCATENATED MODULE: ./node_modules/@wordpress/dom/build-module/focusable.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 element should be skipped from focusable elements.
 * For now it rather specific for `iframes` and  if tabindex attribute is set to -1.
 *
 * @param {Element} element DOM element to test.
 *
 * @return {boolean} Whether element should be skipped from focusable elements.
 */

function skipFocus(element) {
  return element.nodeName.toLowerCase() === 'iframe' && element.getAttribute('tabindex') === '-1';
}
/**
 * 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 Array.from(elements).filter(function (element) {
    if (!isVisible(element) || skipFocus(element)) {
      return false;
    }

var nodeName = element.nodeName;

if ('AREA' === nodeName) {
      return isValidFocusableArea(element);
    }

return true;
  });
}

// EXTERNAL MODULE: external {"this":"lodash"}
var external_this_lodash_ = __webpack_require__(2);

// CONCATENATED MODULE: ./node_modules/@wordpress/dom/build-module/tabbable.js
/**
 * External dependencies
 */

/**
 * 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;
}
/**
 * Returns a stateful reducer function which constructs a filtered array of
 * tabbable elements, where at most one radio input is selected for a given
 * name, giving priority to checked input, falling back to the first
 * encountered.
 *
 * @return {Function} Radio group collapse reducer.
 */

function createStatefulCollapseRadioGroup() {
  var CHOSEN_RADIO_BY_NAME = {};
  return function collapseRadioGroup(result, element) {
    var nodeName = element.nodeName,
        type = element.type,
        checked = element.checked,
        name = element.name; // For all non-radio tabbables, construct to array by concatenating.

if (nodeName !== 'INPUT' || type !== 'radio' || !name) {
      return result.concat(element);
    }

var hasChosen = CHOSEN_RADIO_BY_NAME.hasOwnProperty(name); // Omit by skipping concatenation if the radio element is not chosen.

var isChosen = checked || !hasChosen;

if (!isChosen) {
      return result;
    } // At this point, if there had been a chosen element, the current
    // element is checked and should take priority. Retroactively remove
    // the element which had previously been considered the chosen one.

if (hasChosen) {
      var hadChosenElement = CHOSEN_RADIO_BY_NAME[name];
      result = Object(external_this_lodash_["without"])(result, hadChosenElement);
    }

CHOSEN_RADIO_BY_NAME[name] = element;
    return result.concat(element);
  };
}
/**
 * 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;
}
/**
 * Givin focusable elements, filters out tabbable element.
 *
 * @param {Array} focusables Focusable elements to filter.
 *
 * @return {Array} Tabbable elements.
 */

function filterTabbable(focusables) {
  return focusables.filter(isTabbableIndex).map(mapElementToObjectTabbable).sort(compareObjectTabbables).map(mapObjectTabbableToElement).reduce(createStatefulCollapseRadioGroup(), []);
}

function tabbable_find(context) {
  return filterTabbable(find(context));
}
/**
 * Given a focusable element, find the preceding tabbable element.
 *
 * @param {Element} element The focusable element before which to look. Defaults
 *                          to the active element.
 */

function findPrevious() {
  var element = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : document.activeElement;
  var focusables = find(document.body);
  var index = focusables.indexOf(element); // Remove all focusables after and including `element`.

focusables.length = index;
  return Object(external_this_lodash_["last"])(filterTabbable(focusables));
}
/**
 * Given a focusable element, find the next tabbable element.
 *
 * @param {Element} element The focusable element after which to look. Defaults
 *                          to the active element.
 */

function findNext() {
  var element = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : document.activeElement;
  var focusables = find(document.body);
  var index = focusables.indexOf(element); // Remove all focusables before and inside `element`.

var remaining = focusables.slice(index + 1).filter(function (node) {
    return !element.contains(node);
  });
  return Object(external_this_lodash_["first"])(filterTabbable(remaining));
}

// CONCATENATED MODULE: ./node_modules/@wordpress/dom/build-module/dom.js
/**
 * External dependencies
 */

/**
 * Browser dependencies
 */

var _window = window,
    DOMParser = _window.DOMParser,
    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 at the edge of the container. Checks for
 * horizontal position by default. Set `onlyVertical` to true to check only
 * vertically.
 *
 * @param {Element} container    Focusable element.
 * @param {boolean} isReverse    Set to true to check left, false to check right.
 * @param {boolean} onlyVertical Set to true to check only vertical position.
 *
 * @return {boolean} True if at the edge, false if not.
 */

function isEdge(container, isReverse, onlyVertical) {
  if (Object(external_this_lodash_["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();

if (!selection.rangeCount) {
    return false;
  }

var originalRange = selection.getRangeAt(0);
  var range = originalRange.cloneRange();
  var isForward = isSelectionForward(selection);
  var isCollapsed = selection.isCollapsed; // Collapse in direction of selection.

if (!isCollapsed) {
    range.collapse(!isForward);
  }

var rangeRect = getRectangleFromRange(range);

if (!rangeRect) {
    return false;
  }

var computedStyle = window.getComputedStyle(container);
  var lineHeight = parseInt(computedStyle.lineHeight, 10) || 0; // Only consider the multiline selection at the edge if the direction is
  // towards the edge.

if (!isCollapsed && rangeRect.height > lineHeight && isForward === isReverse) {
    return false;
  }

var padding = parseInt(computedStyle["padding".concat(isReverse ? 'Top' : 'Bottom')], 10) || 0; // Calculate a buffer that is half the line height. In some browsers, the
  // selection rectangle may not fill the entire height of the line, so we add
  // 3/4 the line height to the selection rectangle to ensure that it is well
  // over its line boundary.

var buffer = 3 * parseInt(lineHeight, 10) / 4;
  var containerRect = container.getBoundingClientRect();
  var originalRangeRect = getRectangleFromRange(originalRange);
  var verticalEdge = isReverse ? containerRect.top + padding > originalRangeRect.top - buffer : containerRect.bottom - padding < originalRangeRect.bottom + buffer;

if (!verticalEdge) {
    return false;
  }

if (onlyVertical) {
    return true;
  } // In the case of RTL scripts, the horizontal edge is at the opposite side.

var direction = computedStyle.direction;
  var isReverseDir = direction === 'rtl' ? !isReverse : isReverse; // To calculate the horizontal position, we insert a test range and see if
  // this test range has the same horizontal position. This method proves to
  // be better than a DOM-based calculation, because it ignores empty text
  // nodes and a trailing line break element. In other words, we need to check
  // visual positioning, not DOM positioning.

var x = isReverseDir ? containerRect.left + 1 : containerRect.right - 1;
  var y = isReverse ? containerRect.top + buffer : containerRect.bottom - buffer;
  var testRange = hiddenCaretRangeFromPoint(document, x, y, container);

if (!testRange) {
    return false;
  }

var side = isReverseDir ? 'left' : 'right';
  var testRect = getRectangleFromRange(testRange); // Allow the position to be 1px off.

return Math.abs(testRect[side] - rangeRect[side]) <= 1;
}
/**
 * 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) {
  return isEdge(container, isReverse);
}
/**
 * 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 vertical edge, false if not.
 */

function isVerticalEdge(container, isReverse) {
  return isEdge(container, isReverse, 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 _range = range,
      startContainer = _range.startContainer; // Correct invalid "BR" ranges. The cannot contain any children.

if (startContainer.nodeName === 'BR') {
    var parentNode = startContainer.parentNode;
    var index = Array.from(parentNode.childNodes).indexOf(startContainer);
    range = document.createRange();
    range.setStart(parentNode, index);
    range.setEnd(parentNode, index);
  }

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"); // Do not modify the live range.

range = range.cloneRange();
    range.insertNode(padNode);
    rect = range.getClientRects()[0];
    padNode.parentNode.removeChild(padNode);
  }

return rect;
}
/**
 * Get the rectangle for the selection in a container.
 *
 * @return {?DOMRect} The rectangle.
 */

function computeCaretRect() {
  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(external_this_lodash_["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;
  }

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;
  }

function hiddenCaretRangeFromPoint(doc, x, y, container) {
  var originalZIndex = container.style.zIndex;
  var originalPosition = container.style.position; // A z-index only works if the element position is not static.

container.style.zIndex = '10000';
  container.style.position = 'relative';
  var range = caretRangeFromPoint(doc, x, y);
  container.style.zIndex = originalZIndex;
  container.style.position = originalPosition;
  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 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;
  }

var selection = window.getSelection();
  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 isNumberInput(element) {
  var nodeName = element.nodeName,
      type = element.type,
      valueAsNumber = element.valueAsNumber;
  return nodeName === 'INPUT' && type === 'number' && !!valueAsNumber;
}
/**
 * Check whether the current document has selected text. This applies to ranges
 * of text in the document, and not selection inside <input> and <textarea>
 * elements.
 *
 * See: https://developer.mozilla.org/en-US/docs/Web/API/Window/getSelection#Related_objects.
 *
 * @return {boolean} True if there is selection, false if not.
 */

function inputFieldHasUncollapsedSelection(element) {
  if (!isTextField(element) && !isNumberInput(element)) {
    return false;
  }

try {
    var selectionStart = element.selectionStart,
        selectionEnd = element.selectionEnd;
    return selectionStart !== null && selectionStart !== selectionEnd;
  } 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 whether the current document has any sort of selection. This includes
 * ranges of text across elements and any selection inside <input> and
 * <textarea> elements.
 *
 * @return {boolean} Whether there is any sort of "selection" in the document.
 */

function documentHasUncollapsedSelection() {
  return documentHasTextSelection() || inputFieldHasUncollapsedSelection(document.activeElement);
}
/**
 * Check whether the current document has a selection. This checks for both
 * focus in an input field and general text selection.
 *
 * @return {boolean} True if there is selection, false if not.
 */

function documentHasSelection() {
  return isTextField(document.activeElement) || isNumberInput(document.activeElement) || documentHasTextSelection();
}
/**
 * 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(external_this_lodash_["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;

if (startContainer === element && endContainer === element && startOffset === 0 && endOffset === element.childNodes.length) {
    return true;
  }

var lastChild = element.lastChild;
  var lastChildContentLength = lastChild.nodeType === TEXT_NODE ? lastChild.data.length : lastChild.childNodes.length;
  return startContainer === element.firstChild && endContainer === element.lastChild && startOffset === 0 && endOffset === lastChildContentLength;
}
/**
 * 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.
 *
 * @return {Element} The new node.
 */

function replaceTag(node, tagName) {
  var newNode = node.ownerDocument.createElement(tagName);

while (node.firstChild) {
    newNode.appendChild(node.firstChild);
  }

node.parentNode.replaceChild(newNode, node);
  return newNode;
}
/**
 * Wraps the given node with a new node with the given tag name.
 *
 * @param {Element} newNode       The node to insert.
 * @param {Element} referenceNode The node to wrap.
 */

function wrap(newNode, referenceNode) {
  referenceNode.parentNode.insertBefore(newNode, referenceNode);
  newNode.appendChild(referenceNode);
}
/**
 * Removes any HTML tags from the provided string.
 *
 * @param {string} html The string containing html.
 *
 * @return {string} The text content with any html removed.
 */

function __unstableStripHTML(html) {
  var document = new DOMParser().parseFromString(html, 'text/html');
  return document.body.textContent || '';
}

// CONCATENATED MODULE: ./node_modules/@wordpress/dom/build-module/index.js
/**
 * Internal dependencies
 */

/**
 * Object grouping `focusable` and `tabbable` utils
 * under the keys with the same name.
 */

var build_module_focus = {
  focusable: focusable_namespaceObject,
  tabbable: tabbable_namespaceObject
};

/***/ })

/******/ });

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