{"version":3,"file":"index.js","sources":["../dist-src/propertyUtils.js","../dist-src/utils.js","../dist-src/getOffsetParent.js","../dist-src/isAncestorFixed.js","../dist-src/getVisibleRectForElement.js","../dist-src/adjustForViewport.js","../dist-src/getRegion.js","../dist-src/getAlignOffset.js","../dist-src/getElFuturePos.js","../dist-src/align/align.js","../dist-src/align/alignElement.js","../dist-src/align/alignPoint.js"],"sourcesContent":["var vendorPrefix;\nvar jsCssMap = {\n Webkit: '-webkit-',\n Moz: '-moz-',\n // IE did it wrong again ...\n ms: '-ms-',\n O: '-o-'\n};\nfunction getVendorPrefix() {\n if (vendorPrefix !== undefined) {\n return vendorPrefix;\n }\n vendorPrefix = '';\n var style = document.createElement('p').style;\n var testProp = 'Transform';\n for (var key in jsCssMap) {\n if (key + testProp in style) {\n vendorPrefix = key;\n }\n }\n return vendorPrefix;\n}\nfunction getTransitionName() {\n return getVendorPrefix() ? \"\".concat(getVendorPrefix(), \"TransitionProperty\") : 'transitionProperty';\n}\nexport function getTransformName() {\n return getVendorPrefix() ? \"\".concat(getVendorPrefix(), \"Transform\") : 'transform';\n}\nexport function setTransitionProperty(node, value) {\n var name = getTransitionName();\n if (name) {\n node.style[name] = value;\n if (name !== 'transitionProperty') {\n node.style.transitionProperty = value;\n }\n }\n}\nfunction setTransform(node, value) {\n var name = getTransformName();\n if (name) {\n node.style[name] = value;\n if (name !== 'transform') {\n node.style.transform = value;\n }\n }\n}\nexport function getTransitionProperty(node) {\n return node.style.transitionProperty || node.style[getTransitionName()];\n}\nexport function getTransformXY(node) {\n var style = window.getComputedStyle(node, null);\n var transform = style.getPropertyValue('transform') || style.getPropertyValue(getTransformName());\n if (transform && transform !== 'none') {\n var matrix = transform.replace(/[^0-9\\-.,]/g, '').split(',');\n return {\n x: parseFloat(matrix[12] || matrix[4], 0),\n y: parseFloat(matrix[13] || matrix[5], 0)\n };\n }\n return {\n x: 0,\n y: 0\n };\n}\nvar matrix2d = /matrix\\((.*)\\)/;\nvar matrix3d = /matrix3d\\((.*)\\)/;\nexport function setTransformXY(node, xy) {\n var style = window.getComputedStyle(node, null);\n var transform = style.getPropertyValue('transform') || style.getPropertyValue(getTransformName());\n if (transform && transform !== 'none') {\n var arr;\n var match2d = transform.match(matrix2d);\n if (match2d) {\n match2d = match2d[1];\n arr = match2d.split(',').map(function (item) {\n return parseFloat(item, 10);\n });\n arr[4] = xy.x;\n arr[5] = xy.y;\n setTransform(node, \"matrix(\".concat(arr.join(','), \")\"));\n } else {\n var match3d = transform.match(matrix3d)[1];\n arr = match3d.split(',').map(function (item) {\n return parseFloat(item, 10);\n });\n arr[12] = xy.x;\n arr[13] = xy.y;\n setTransform(node, \"matrix3d(\".concat(arr.join(','), \")\"));\n }\n } else {\n setTransform(node, \"translateX(\".concat(xy.x, \"px) translateY(\").concat(xy.y, \"px) translateZ(0)\"));\n }\n}","function _typeof(obj) { \"@babel/helpers - typeof\"; return _typeof = \"function\" == typeof Symbol && \"symbol\" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && \"function\" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }, _typeof(obj); }\nimport { setTransitionProperty, getTransitionProperty, getTransformXY, setTransformXY, getTransformName } from \"./propertyUtils.js\";\nvar RE_NUM = /[\\-+]?(?:\\d*\\.|)\\d+(?:[eE][\\-+]?\\d+|)/.source;\nvar getComputedStyleX;\n\n// https://stackoverflow.com/a/3485654/3040605\nfunction forceRelayout(elem) {\n var originalStyle = elem.style.display;\n elem.style.display = 'none';\n elem.offsetHeight; // eslint-disable-line\n elem.style.display = originalStyle;\n}\nfunction css(el, name, v) {\n var value = v;\n if (_typeof(name) === 'object') {\n for (var i in name) {\n if (name.hasOwnProperty(i)) {\n css(el, i, name[i]);\n }\n }\n return undefined;\n }\n if (typeof value !== 'undefined') {\n if (typeof value === 'number') {\n value = \"\".concat(value, \"px\");\n }\n el.style[name] = value;\n return undefined;\n }\n return getComputedStyleX(el, name);\n}\nfunction getClientPosition(elem) {\n var box;\n var x;\n var y;\n var doc = elem.ownerDocument;\n var body = doc.body;\n var docElem = doc && doc.documentElement;\n // 根据 GBS 最新数据,A-Grade Browsers 都已支持 getBoundingClientRect 方法,不用再考虑传统的实现方式\n box = elem.getBoundingClientRect();\n\n // 注:jQuery 还考虑减去 docElem.clientLeft/clientTop\n // 但测试发现,这样反而会导致当 html 和 body 有边距/边框样式时,获取的值不正确\n // 此外,ie6 会忽略 html 的 margin 值,幸运地是没有谁会去设置 html 的 margin\n\n x = Math.floor(box.left);\n y = Math.floor(box.top);\n\n // In IE, most of the time, 2 extra pixels are added to the top and left\n // due to the implicit 2-pixel inset border. In IE6/7 quirks mode and\n // IE6 standards mode, this border can be overridden by setting the\n // document element's border to zero -- thus, we cannot rely on the\n // offset always being 2 pixels.\n\n // In quirks mode, the offset can be determined by querying the body's\n // clientLeft/clientTop, but in standards mode, it is found by querying\n // the document element's clientLeft/clientTop. Since we already called\n // getClientBoundingRect we have already forced a reflow, so it is not\n // too expensive just to query them all.\n\n // ie 下应该减去窗口的边框吧,毕竟默认 absolute 都是相对窗口定位的\n // 窗口边框标准是设 documentElement ,quirks 时设置 body\n // 最好禁止在 body 和 html 上边框 ,但 ie < 9 html 默认有 2px ,减去\n // 但是非 ie 不可能设置窗口边框,body html 也不是窗口 ,ie 可以通过 html,body 设置\n // 标准 ie 下 docElem.clientTop 就是 border-top\n // ie7 html 即窗口边框改变不了。永远为 2\n // 但标准 firefox/chrome/ie9 下 docElem.clientTop 是窗口边框,即使设了 border-top 也为 0\n\n x -= docElem.clientLeft || body.clientLeft || 0;\n y -= docElem.clientTop || body.clientTop || 0;\n return {\n left: x,\n top: y\n };\n}\nfunction getScroll(w, top) {\n var ret = w[\"page\".concat(top ? 'Y' : 'X', \"Offset\")];\n var method = \"scroll\".concat(top ? 'Top' : 'Left');\n if (typeof ret !== 'number') {\n var d = w.document;\n // ie6,7,8 standard mode\n ret = d.documentElement[method];\n if (typeof ret !== 'number') {\n // quirks mode\n ret = d.body[method];\n }\n }\n return ret;\n}\nfunction getScrollLeft(w) {\n return getScroll(w);\n}\nfunction getScrollTop(w) {\n return getScroll(w, true);\n}\nfunction getOffset(el) {\n var pos = getClientPosition(el);\n var doc = el.ownerDocument;\n var w = doc.defaultView || doc.parentWindow;\n pos.left += getScrollLeft(w);\n pos.top += getScrollTop(w);\n return pos;\n}\n\n/**\n * A crude way of determining if an object is a window\n * @member util\n */\nfunction isWindow(obj) {\n // must use == for ie8\n /* eslint eqeqeq:0 */\n return obj !== null && obj !== undefined && obj == obj.window;\n}\nfunction getDocument(node) {\n if (isWindow(node)) {\n return node.document;\n }\n if (node.nodeType === 9) {\n return node;\n }\n return node.ownerDocument;\n}\nfunction _getComputedStyle(elem, name, cs) {\n var computedStyle = cs;\n var val = '';\n var d = getDocument(elem);\n computedStyle = computedStyle || d.defaultView.getComputedStyle(elem, null);\n\n // https://github.com/kissyteam/kissy/issues/61\n if (computedStyle) {\n val = computedStyle.getPropertyValue(name) || computedStyle[name];\n }\n return val;\n}\nvar _RE_NUM_NO_PX = new RegExp(\"^(\".concat(RE_NUM, \")(?!px)[a-z%]+$\"), 'i');\nvar RE_POS = /^(top|right|bottom|left)$/;\nvar CURRENT_STYLE = 'currentStyle';\nvar RUNTIME_STYLE = 'runtimeStyle';\nvar LEFT = 'left';\nvar PX = 'px';\nfunction _getComputedStyleIE(elem, name) {\n // currentStyle maybe null\n // http://msdn.microsoft.com/en-us/library/ms535231.aspx\n var ret = elem[CURRENT_STYLE] && elem[CURRENT_STYLE][name];\n\n // 当 width/height 设置为百分比时,通过 pixelLeft 方式转换的 width/height 值\n // 一开始就处理了! CUSTOM_STYLE.height,CUSTOM_STYLE.width ,cssHook 解决@2011-08-19\n // 在 ie 下不对,需要直接用 offset 方式\n // borderWidth 等值也有问题,但考虑到 borderWidth 设为百分比的概率很小,这里就不考虑了\n\n // From the awesome hack by Dean Edwards\n // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291\n // If we're not dealing with a regular pixel number\n // but a number that has a weird ending, we need to convert it to pixels\n // exclude left right for relativity\n if (_RE_NUM_NO_PX.test(ret) && !RE_POS.test(name)) {\n // Remember the original values\n var style = elem.style;\n var left = style[LEFT];\n var rsLeft = elem[RUNTIME_STYLE][LEFT];\n\n // prevent flashing of content\n elem[RUNTIME_STYLE][LEFT] = elem[CURRENT_STYLE][LEFT];\n\n // Put in the new values to get a computed value out\n style[LEFT] = name === 'fontSize' ? '1em' : ret || 0;\n ret = style.pixelLeft + PX;\n\n // Revert the changed values\n style[LEFT] = left;\n elem[RUNTIME_STYLE][LEFT] = rsLeft;\n }\n return ret === '' ? 'auto' : ret;\n}\nif (typeof window !== 'undefined') {\n getComputedStyleX = window.getComputedStyle ? _getComputedStyle : _getComputedStyleIE;\n}\nfunction getOffsetDirection(dir, option) {\n if (dir === 'left') {\n return option.useCssRight ? 'right' : dir;\n }\n return option.useCssBottom ? 'bottom' : dir;\n}\nfunction oppositeOffsetDirection(dir) {\n if (dir === 'left') {\n return 'right';\n } else if (dir === 'right') {\n return 'left';\n } else if (dir === 'top') {\n return 'bottom';\n } else if (dir === 'bottom') {\n return 'top';\n }\n}\n\n// 设置 elem 相对 elem.ownerDocument 的坐标\nfunction setLeftTop(elem, offset, option) {\n // set position first, in-case top/left are set even on static elem\n if (css(elem, 'position') === 'static') {\n elem.style.position = 'relative';\n }\n var presetH = -999;\n var presetV = -999;\n var horizontalProperty = getOffsetDirection('left', option);\n var verticalProperty = getOffsetDirection('top', option);\n var oppositeHorizontalProperty = oppositeOffsetDirection(horizontalProperty);\n var oppositeVerticalProperty = oppositeOffsetDirection(verticalProperty);\n if (horizontalProperty !== 'left') {\n presetH = 999;\n }\n if (verticalProperty !== 'top') {\n presetV = 999;\n }\n var originalTransition = '';\n var originalOffset = getOffset(elem);\n if ('left' in offset || 'top' in offset) {\n originalTransition = getTransitionProperty(elem) || '';\n setTransitionProperty(elem, 'none');\n }\n if ('left' in offset) {\n elem.style[oppositeHorizontalProperty] = '';\n elem.style[horizontalProperty] = \"\".concat(presetH, \"px\");\n }\n if ('top' in offset) {\n elem.style[oppositeVerticalProperty] = '';\n elem.style[verticalProperty] = \"\".concat(presetV, \"px\");\n }\n // force relayout\n forceRelayout(elem);\n var old = getOffset(elem);\n var originalStyle = {};\n for (var key in offset) {\n if (offset.hasOwnProperty(key)) {\n var dir = getOffsetDirection(key, option);\n var preset = key === 'left' ? presetH : presetV;\n var off = originalOffset[key] - old[key];\n if (dir === key) {\n originalStyle[dir] = preset + off;\n } else {\n originalStyle[dir] = preset - off;\n }\n }\n }\n css(elem, originalStyle);\n // force relayout\n forceRelayout(elem);\n if ('left' in offset || 'top' in offset) {\n setTransitionProperty(elem, originalTransition);\n }\n var ret = {};\n for (var _key in offset) {\n if (offset.hasOwnProperty(_key)) {\n var _dir = getOffsetDirection(_key, option);\n var _off = offset[_key] - originalOffset[_key];\n if (_key === _dir) {\n ret[_dir] = originalStyle[_dir] + _off;\n } else {\n ret[_dir] = originalStyle[_dir] - _off;\n }\n }\n }\n css(elem, ret);\n}\nfunction setTransform(elem, offset) {\n var originalOffset = getOffset(elem);\n var originalXY = getTransformXY(elem);\n var resultXY = {\n x: originalXY.x,\n y: originalXY.y\n };\n if ('left' in offset) {\n resultXY.x = originalXY.x + offset.left - originalOffset.left;\n }\n if ('top' in offset) {\n resultXY.y = originalXY.y + offset.top - originalOffset.top;\n }\n setTransformXY(elem, resultXY);\n}\nfunction setOffset(elem, offset, option) {\n if (option.ignoreShake) {\n var oriOffset = getOffset(elem);\n var oLeft = oriOffset.left.toFixed(0);\n var oTop = oriOffset.top.toFixed(0);\n var tLeft = offset.left.toFixed(0);\n var tTop = offset.top.toFixed(0);\n if (oLeft === tLeft && oTop === tTop) {\n return;\n }\n }\n if (option.useCssRight || option.useCssBottom) {\n setLeftTop(elem, offset, option);\n } else if (option.useCssTransform && getTransformName() in document.body.style) {\n setTransform(elem, offset, option);\n } else {\n setLeftTop(elem, offset, option);\n }\n}\nfunction each(arr, fn) {\n for (var i = 0; i < arr.length; i++) {\n fn(arr[i]);\n }\n}\nfunction isBorderBoxFn(elem) {\n return getComputedStyleX(elem, 'boxSizing') === 'border-box';\n}\nvar BOX_MODELS = ['margin', 'border', 'padding'];\nvar CONTENT_INDEX = -1;\nvar PADDING_INDEX = 2;\nvar BORDER_INDEX = 1;\nvar MARGIN_INDEX = 0;\nfunction swap(elem, options, callback) {\n var old = {};\n var style = elem.style;\n var name;\n\n // Remember the old values, and insert the new ones\n for (name in options) {\n if (options.hasOwnProperty(name)) {\n old[name] = style[name];\n style[name] = options[name];\n }\n }\n callback.call(elem);\n\n // Revert the old values\n for (name in options) {\n if (options.hasOwnProperty(name)) {\n style[name] = old[name];\n }\n }\n}\nfunction getPBMWidth(elem, props, which) {\n var value = 0;\n var prop;\n var j;\n var i;\n for (j = 0; j < props.length; j++) {\n prop = props[j];\n if (prop) {\n for (i = 0; i < which.length; i++) {\n var cssProp = void 0;\n if (prop === 'border') {\n cssProp = \"\".concat(prop).concat(which[i], \"Width\");\n } else {\n cssProp = prop + which[i];\n }\n value += parseFloat(getComputedStyleX(elem, cssProp)) || 0;\n }\n }\n }\n return value;\n}\nvar domUtils = {\n getParent: function getParent(element) {\n var parent = element;\n do {\n if (parent.nodeType === 11 && parent.host) {\n parent = parent.host;\n } else {\n parent = parent.parentNode;\n }\n } while (parent && parent.nodeType !== 1 && parent.nodeType !== 9);\n return parent;\n }\n};\neach(['Width', 'Height'], function (name) {\n domUtils[\"doc\".concat(name)] = function (refWin) {\n var d = refWin.document;\n return Math.max(\n // firefox chrome documentElement.scrollHeight< body.scrollHeight\n // ie standard mode : documentElement.scrollHeight> body.scrollHeight\n d.documentElement[\"scroll\".concat(name)],\n // quirks : documentElement.scrollHeight 最大等于可视窗口多一点?\n d.body[\"scroll\".concat(name)], domUtils[\"viewport\".concat(name)](d));\n };\n domUtils[\"viewport\".concat(name)] = function (win) {\n // pc browser includes scrollbar in window.innerWidth\n var prop = \"client\".concat(name);\n var doc = win.document;\n var body = doc.body;\n var documentElement = doc.documentElement;\n var documentElementProp = documentElement[prop];\n // 标准模式取 documentElement\n // backcompat 取 body\n return doc.compatMode === 'CSS1Compat' && documentElementProp || body && body[prop] || documentElementProp;\n };\n});\n\n/*\n 得到元素的大小信息\n @param elem\n @param name\n @param {String} [extra] 'padding' : (css width) + padding\n 'border' : (css width) + padding + border\n 'margin' : (css width) + padding + border + margin\n */\nfunction getWH(elem, name, ex) {\n var extra = ex;\n if (isWindow(elem)) {\n return name === 'width' ? domUtils.viewportWidth(elem) : domUtils.viewportHeight(elem);\n } else if (elem.nodeType === 9) {\n return name === 'width' ? domUtils.docWidth(elem) : domUtils.docHeight(elem);\n }\n var which = name === 'width' ? ['Left', 'Right'] : ['Top', 'Bottom'];\n var borderBoxValue = name === 'width' ? Math.floor(elem.getBoundingClientRect().width) : Math.floor(elem.getBoundingClientRect().height);\n var isBorderBox = isBorderBoxFn(elem);\n var cssBoxValue = 0;\n if (borderBoxValue === null || borderBoxValue === undefined || borderBoxValue <= 0) {\n borderBoxValue = undefined;\n // Fall back to computed then un computed css if necessary\n cssBoxValue = getComputedStyleX(elem, name);\n if (cssBoxValue === null || cssBoxValue === undefined || Number(cssBoxValue) < 0) {\n cssBoxValue = elem.style[name] || 0;\n }\n // Normalize '', auto, and prepare for extra\n cssBoxValue = Math.floor(parseFloat(cssBoxValue)) || 0;\n }\n if (extra === undefined) {\n extra = isBorderBox ? BORDER_INDEX : CONTENT_INDEX;\n }\n var borderBoxValueOrIsBorderBox = borderBoxValue !== undefined || isBorderBox;\n var val = borderBoxValue || cssBoxValue;\n if (extra === CONTENT_INDEX) {\n if (borderBoxValueOrIsBorderBox) {\n return val - getPBMWidth(elem, ['border', 'padding'], which);\n }\n return cssBoxValue;\n } else if (borderBoxValueOrIsBorderBox) {\n if (extra === BORDER_INDEX) {\n return val;\n }\n return val + (extra === PADDING_INDEX ? -getPBMWidth(elem, ['border'], which) : getPBMWidth(elem, ['margin'], which));\n }\n return cssBoxValue + getPBMWidth(elem, BOX_MODELS.slice(extra), which);\n}\nvar cssShow = {\n position: 'absolute',\n visibility: 'hidden',\n display: 'block'\n};\n\n// fix #119 : https://github.com/kissyteam/kissy/issues/119\nfunction getWHIgnoreDisplay() {\n for (var _len = arguments.length, args = new Array(_len), _key2 = 0; _key2 < _len; _key2++) {\n args[_key2] = arguments[_key2];\n }\n var val;\n var elem = args[0];\n // in case elem is window\n // elem.offsetWidth === undefined\n if (elem.offsetWidth !== 0) {\n val = getWH.apply(undefined, args);\n } else {\n swap(elem, cssShow, function () {\n val = getWH.apply(undefined, args);\n });\n }\n return val;\n}\neach(['width', 'height'], function (name) {\n var first = name.charAt(0).toUpperCase() + name.slice(1);\n domUtils[\"outer\".concat(first)] = function (el, includeMargin) {\n return el && getWHIgnoreDisplay(el, name, includeMargin ? MARGIN_INDEX : BORDER_INDEX);\n };\n var which = name === 'width' ? ['Left', 'Right'] : ['Top', 'Bottom'];\n domUtils[name] = function (elem, v) {\n var val = v;\n if (val !== undefined) {\n if (elem) {\n var isBorderBox = isBorderBoxFn(elem);\n if (isBorderBox) {\n val += getPBMWidth(elem, ['padding', 'border'], which);\n }\n return css(elem, name, val);\n }\n return undefined;\n }\n return elem && getWHIgnoreDisplay(elem, name, CONTENT_INDEX);\n };\n});\nfunction mix(to, from) {\n for (var i in from) {\n if (from.hasOwnProperty(i)) {\n to[i] = from[i];\n }\n }\n return to;\n}\nvar utils = {\n getWindow: function getWindow(node) {\n if (node && node.document && node.setTimeout) {\n return node;\n }\n var doc = node.ownerDocument || node;\n return doc.defaultView || doc.parentWindow;\n },\n getDocument: getDocument,\n offset: function offset(el, value, option) {\n if (typeof value !== 'undefined') {\n setOffset(el, value, option || {});\n } else {\n return getOffset(el);\n }\n },\n isWindow: isWindow,\n each: each,\n css: css,\n clone: function clone(obj) {\n var i;\n var ret = {};\n for (i in obj) {\n if (obj.hasOwnProperty(i)) {\n ret[i] = obj[i];\n }\n }\n var overflow = obj.overflow;\n if (overflow) {\n for (i in obj) {\n if (obj.hasOwnProperty(i)) {\n ret.overflow[i] = obj.overflow[i];\n }\n }\n }\n return ret;\n },\n mix: mix,\n getWindowScrollLeft: function getWindowScrollLeft(w) {\n return getScrollLeft(w);\n },\n getWindowScrollTop: function getWindowScrollTop(w) {\n return getScrollTop(w);\n },\n merge: function merge() {\n var ret = {};\n for (var i = 0; i < arguments.length; i++) {\n utils.mix(ret, i < 0 || arguments.length <= i ? undefined : arguments[i]);\n }\n return ret;\n },\n viewportWidth: 0,\n viewportHeight: 0\n};\nmix(utils, domUtils);\nexport default utils;","import utils from \"./utils.js\";\n\n/**\n * 得到会导致元素显示不全的祖先元素\n */\nvar getParent = utils.getParent;\nfunction getOffsetParent(element) {\n if (utils.isWindow(element) || element.nodeType === 9) {\n return null;\n }\n // ie 这个也不是完全可行\n /*\n