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strict';\n\nmodule.exports = require('./dom-scroll-into-view');","'use strict';\n\nvar util = require('./util');\n\nfunction scrollIntoView(elem, container, config) {\n  config = config || {};\n  // document 归一化到 window\n  if (container.nodeType === 9) {\n    container = util.getWindow(container);\n  }\n\n  var allowHorizontalScroll = config.allowHorizontalScroll;\n  var onlyScrollIfNeeded = config.onlyScrollIfNeeded;\n  var alignWithTop = config.alignWithTop;\n  var alignWithLeft = config.alignWithLeft;\n  var offsetTop = config.offsetTop || 0;\n  var offsetLeft = config.offsetLeft || 0;\n  var offsetBottom = config.offsetBottom || 0;\n  var offsetRight = config.offsetRight || 0;\n\n  allowHorizontalScroll = allowHorizontalScroll === undefined ? true : allowHorizontalScroll;\n\n  var isWin = util.isWindow(container);\n  var elemOffset = util.offset(elem);\n  var eh = util.outerHeight(elem);\n  var ew = util.outerWidth(elem);\n  var containerOffset = undefined;\n  var ch = undefined;\n  var cw = undefined;\n  var containerScroll = undefined;\n  var diffTop = undefined;\n  var diffBottom = undefined;\n  var win = undefined;\n  var winScroll = undefined;\n  var ww = undefined;\n  var wh = undefined;\n\n  if (isWin) {\n    win = container;\n    wh = util.height(win);\n    ww = util.width(win);\n    winScroll = {\n      left: util.scrollLeft(win),\n      top: util.scrollTop(win)\n    };\n    // elem 相对 container 可视视窗的距离\n    diffTop = {\n      left: elemOffset.left - winScroll.left - offsetLeft,\n      top: elemOffset.top - winScroll.top - offsetTop\n    };\n    diffBottom = {\n      left: elemOffset.left + ew - (winScroll.left + ww) + offsetRight,\n      top: elemOffset.top + eh - (winScroll.top + wh) + offsetBottom\n    };\n    containerScroll = winScroll;\n  } else {\n    containerOffset = util.offset(container);\n    ch = container.clientHeight;\n    cw = container.clientWidth;\n    containerScroll = {\n      left: container.scrollLeft,\n      top: container.scrollTop\n    };\n    // elem 相对 container 可视视窗的距离\n    // 注意边框, offset 是边框到根节点\n    diffTop = {\n      left: elemOffset.left - (containerOffset.left + (parseFloat(util.css(container, 'borderLeftWidth')) || 0)) - offsetLeft,\n      top: elemOffset.top - (containerOffset.top + (parseFloat(util.css(container, 'borderTopWidth')) || 0)) - offsetTop\n    };\n    diffBottom = {\n      left: elemOffset.left + ew - (containerOffset.left + cw + (parseFloat(util.css(container, 'borderRightWidth')) || 0)) + offsetRight,\n      top: elemOffset.top + eh - (containerOffset.top + ch + (parseFloat(util.css(container, 'borderBottomWidth')) || 0)) + offsetBottom\n    };\n  }\n\n  if (diffTop.top < 0 || diffBottom.top > 0) {\n    // 强制向上\n    if (alignWithTop === true) {\n      util.scrollTop(container, containerScroll.top + diffTop.top);\n    } else if (alignWithTop === false) {\n      util.scrollTop(container, containerScroll.top + diffBottom.top);\n    } else {\n      // 自动调整\n      if (diffTop.top < 0) {\n        util.scrollTop(container, containerScroll.top + diffTop.top);\n      } else {\n        util.scrollTop(container, containerScroll.top + diffBottom.top);\n      }\n    }\n  } else {\n    if (!onlyScrollIfNeeded) {\n      alignWithTop = alignWithTop === undefined ? true : !!alignWithTop;\n      if (alignWithTop) {\n        util.scrollTop(container, containerScroll.top + diffTop.top);\n      } else {\n        util.scrollTop(container, containerScroll.top + diffBottom.top);\n      }\n    }\n  }\n\n  if (allowHorizontalScroll) {\n    if (diffTop.left < 0 || diffBottom.left > 0) {\n      // 强制向上\n      if (alignWithLeft === true) {\n        util.scrollLeft(container, containerScroll.left + diffTop.left);\n      } else if (alignWithLeft === false) {\n        util.scrollLeft(container, containerScroll.left + diffBottom.left);\n      } else {\n        // 自动调整\n        if (diffTop.left < 0) {\n          util.scrollLeft(container, containerScroll.left + diffTop.left);\n        } else {\n          util.scrollLeft(container, containerScroll.left + diffBottom.left);\n        }\n      }\n    } else {\n      if (!onlyScrollIfNeeded) {\n        alignWithLeft = alignWithLeft === undefined ? true : !!alignWithLeft;\n        if (alignWithLeft) {\n          util.scrollLeft(container, containerScroll.left + diffTop.left);\n        } else {\n          util.scrollLeft(container, containerScroll.left + diffBottom.left);\n        }\n      }\n    }\n  }\n}\n\nmodule.exports = scrollIntoView;","'use strict';\n\nvar _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol ? \"symbol\" : typeof obj; };\n\nvar RE_NUM = /[\\-+]?(?:\\d*\\.|)\\d+(?:[eE][\\-+]?\\d+|)/.source;\n\nfunction getClientPosition(elem) {\n  var box = undefined;\n  var x = undefined;\n  var y = undefined;\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 = box.left;\n  y = 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\n  return {\n    left: x,\n    top: y\n  };\n}\n\nfunction getScroll(w, top) {\n  var ret = w['page' + (top ? 'Y' : 'X') + 'Offset'];\n  var method = 'scroll' + (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}\n\nfunction getScrollLeft(w) {\n  return getScroll(w);\n}\n\nfunction getScrollTop(w) {\n  return getScroll(w, true);\n}\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}\nfunction _getComputedStyle(elem, name, computedStyle_) {\n  var val = '';\n  var d = elem.ownerDocument;\n  var 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\n  return val;\n}\n\nvar _RE_NUM_NO_PX = new RegExp('^(' + 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';\n\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\n    elem[RUNTIME_STYLE][LEFT] = rsLeft;\n  }\n  return ret === '' ? 'auto' : ret;\n}\n\nvar getComputedStyleX = undefined;\nif (typeof window !== 'undefined') {\n  getComputedStyleX = window.getComputedStyle ? _getComputedStyle : _getComputedStyleIE;\n}\n\nfunction each(arr, fn) {\n  for (var i = 0; i < arr.length; i++) {\n    fn(arr[i]);\n  }\n}\n\nfunction isBorderBoxFn(elem) {\n  return getComputedStyleX(elem, 'boxSizing') === 'border-box';\n}\n\nvar BOX_MODELS = ['margin', 'border', 'padding'];\nvar CONTENT_INDEX = -1;\nvar PADDING_INDEX = 2;\nvar BORDER_INDEX = 1;\nvar MARGIN_INDEX = 0;\n\nfunction swap(elem, options, callback) {\n  var old = {};\n  var style = elem.style;\n  var name = undefined;\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\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}\n\nfunction getPBMWidth(elem, props, which) {\n  var value = 0;\n  var prop = undefined;\n  var j = undefined;\n  var i = undefined;\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 = undefined;\n        if (prop === 'border') {\n          cssProp = prop + 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}\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 == obj.window;\n}\n\nvar domUtils = {};\n\neach(['Width', 'Height'], function (name) {\n  domUtils['doc' + 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' + name],\n    // quirks : documentElement.scrollHeight 最大等于可视窗口多一点？\n    d.body['scroll' + name], domUtils['viewport' + name](d));\n  };\n\n  domUtils['viewport' + name] = function (win) {\n    // pc browser includes scrollbar in window.innerWidth\n    var prop = 'client' + 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, extra) {\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' ? elem.offsetWidth : elem.offsetHeight;\n  var computedStyle = getComputedStyleX(elem);\n  var isBorderBox = isBorderBoxFn(elem, computedStyle);\n  var cssBoxValue = 0;\n  if (borderBoxValue == null || 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 || Number(cssBoxValue) < 0) {\n      cssBoxValue = elem.style[name] || 0;\n    }\n    // Normalize '', auto, and prepare for extra\n    cssBoxValue = 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, computedStyle);\n    }\n    return cssBoxValue;\n  }\n  if (borderBoxValueOrIsBorderBox) {\n    var padding = extra === PADDING_INDEX ? -getPBMWidth(elem, ['border'], which, computedStyle) : getPBMWidth(elem, ['margin'], which, computedStyle);\n    return val + (extra === BORDER_INDEX ? 0 : padding);\n  }\n  return cssBoxValue + getPBMWidth(elem, BOX_MODELS.slice(extra), which, computedStyle);\n}\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(elem) {\n  var val = undefined;\n  var args = arguments;\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}\n\nfunction css(el, name, v) {\n  var value = v;\n  if ((typeof name === 'undefined' ? 'undefined' : _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 += 'px';\n    }\n    el.style[name] = value;\n    return undefined;\n  }\n  return getComputedStyleX(el, name);\n}\n\neach(['width', 'height'], function (name) {\n  var first = name.charAt(0).toUpperCase() + name.slice(1);\n  domUtils['outer' + 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\n  domUtils[name] = function (elem, val) {\n    if (val !== undefined) {\n      if (elem) {\n        var computedStyle = getComputedStyleX(elem);\n        var isBorderBox = isBorderBoxFn(elem);\n        if (isBorderBox) {\n          val += getPBMWidth(elem, ['padding', 'border'], which, computedStyle);\n        }\n        return css(elem, name, val);\n      }\n      return undefined;\n    }\n    return elem && getWHIgnoreDisplay(elem, name, CONTENT_INDEX);\n  };\n});\n\n// 设置 elem 相对 elem.ownerDocument 的坐标\nfunction setOffset(elem, offset) {\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\n  var old = getOffset(elem);\n  var ret = {};\n  var current = undefined;\n  var key = undefined;\n\n  for (key in offset) {\n    if (offset.hasOwnProperty(key)) {\n      current = parseFloat(css(elem, key)) || 0;\n      ret[key] = current + offset[key] - old[key];\n    }\n  }\n  css(elem, ret);\n}\n\nmodule.exports = _extends({\n  getWindow: function getWindow(node) {\n    var doc = node.ownerDocument || node;\n    return doc.defaultView || doc.parentWindow;\n  },\n  offset: function offset(el, value) {\n    if (typeof value !== 'undefined') {\n      setOffset(el, value);\n    } else {\n      return getOffset(el);\n    }\n  },\n\n  isWindow: isWindow,\n  each: each,\n  css: css,\n  clone: function clone(obj) {\n    var ret = {};\n    for (var 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 (var i in obj) {\n        if (obj.hasOwnProperty(i)) {\n          ret.overflow[i] = obj.overflow[i];\n        }\n      }\n    }\n    return ret;\n  },\n  scrollLeft: function scrollLeft(w, v) {\n    if (isWindow(w)) {\n      if (v === undefined) {\n        return getScrollLeft(w);\n      }\n      window.scrollTo(v, getScrollTop(w));\n    } else {\n      if (v === undefined) {\n        return w.scrollLeft;\n      }\n      w.scrollLeft = v;\n    }\n  },\n  scrollTop: function scrollTop(w, v) {\n    if (isWindow(w)) {\n      if (v === undefined) {\n        return getScrollTop(w);\n      }\n      window.scrollTo(getScrollLeft(w), v);\n    } else {\n      if (v === undefined) {\n        return w.scrollTop;\n      }\n      w.scrollTop = v;\n    }\n  },\n\n  viewportWidth: 0,\n  viewportHeight: 0\n}, domUtils);"],"sourceRoot":""}