1 files changed, 222 insertions, 0 deletions
diff --git a/node_modules/vue-style-loader/lib/addStylesClient.js b/node_modules/vue-style-loader/lib/addStylesClient.js
new file mode 100644
index 00000000..920b00bb
--- /dev/null
+++ b/node_modules/vue-style-loader/lib/addStylesClient.js
@@ -0,0 +1,222 @@
+/*
+  MIT License http://www.opensource.org/licenses/mit-license.php
+  Author Tobias Koppers @sokra
+  Modified by Evan You @yyx990803
+*/
+
+import listToStyles from './listToStyles'
+
+var hasDocument = typeof document !== 'undefined'
+
+if (typeof DEBUG !== 'undefined' && DEBUG) {
+  if (!hasDocument) {
+    throw new Error(
+    'vue-style-loader cannot be used in a non-browser environment. ' +
+    "Use { target: 'node' } in your Webpack config to indicate a server-rendering environment."
+  ) }
+}
+
+/*
+type StyleObject = {
+  id: number;
+  parts: Array<StyleObjectPart>
+}
+
+type StyleObjectPart = {
+  css: string;
+  media: string;
+  sourceMap: ?string
+}
+*/
+
+var stylesInDom = {/*
+  [id: number]: {
+    id: number,
+    refs: number,
+    parts: Array<(obj?: StyleObjectPart) => void>
+  }
+*/}
+
+var head = hasDocument && (document.head || document.getElementsByTagName('head')[0])
+var singletonElement = null
+var singletonCounter = 0
+var isProduction = false
+var noop = function () {}
+var options = null
+var ssrIdKey = 'data-vue-ssr-id'
+
+// Force single-tag solution on IE6-9, which has a hard limit on the # of <style>
+// tags it will allow on a page
+var isOldIE = typeof navigator !== 'undefined' && /msie [6-9]\b/.test(navigator.userAgent.toLowerCase())
+
+export default function addStylesClient (parentId, list, _isProduction, _options) {
+  isProduction = _isProduction
+
+  options = _options || {}
+
+  var styles = listToStyles(parentId, list)
+  addStylesToDom(styles)
+
+  return function update (newList) {
+    var mayRemove = []
+    for (var i = 0; i < styles.length; i++) {
+      var item = styles[i]
+      var domStyle = stylesInDom[item.id]
+      domStyle.refs--
+      mayRemove.push(domStyle)
+    }
+    if (newList) {
+      styles = listToStyles(parentId, newList)
+      addStylesToDom(styles)
+    } else {
+      styles = []
+    }
+    for (var i = 0; i < mayRemove.length; i++) {
+      var domStyle = mayRemove[i]
+      if (domStyle.refs === 0) {
+        for (var j = 0; j < domStyle.parts.length; j++) {
+          domStyle.parts[j]()
+        }
+        delete stylesInDom[domStyle.id]
+      }
+    }
+  }
+}
+
+function addStylesToDom (styles /* Array<StyleObject> */) {
+  for (var i = 0; i < styles.length; i++) {
+    var item = styles[i]
+    var domStyle = stylesInDom[item.id]
+    if (domStyle) {
+      domStyle.refs++
+      for (var j = 0; j < domStyle.parts.length; j++) {
+        domStyle.parts[j](item.parts[j])
+      }
+      for (; j < item.parts.length; j++) {
+        domStyle.parts.push(addStyle(item.parts[j]))
+      }
+      if (domStyle.parts.length > item.parts.length) {
+        domStyle.parts.length = item.parts.length
+      }
+    } else {
+      var parts = []
+      for (var j = 0; j < item.parts.length; j++) {
+        parts.push(addStyle(item.parts[j]))
+      }
+      stylesInDom[item.id] = { id: item.id, refs: 1, parts: parts }
+    }
+  }
+}
+
+function createStyleElement () {
+  var styleElement = document.createElement('style')
+  styleElement.type = 'text/css'
+  head.appendChild(styleElement)
+  return styleElement
+}
+
+function addStyle (obj /* StyleObjectPart */) {
+  var update, remove
+  var styleElement = document.querySelector('style[' + ssrIdKey + '~="' + obj.id + '"]')
+
+  if (styleElement) {
+    if (isProduction) {
+      // has SSR styles and in production mode.
+      // simply do nothing.
+      return noop
+    } else {
+      // has SSR styles but in dev mode.
+      // for some reason Chrome can't handle source map in server-rendered
+      // style tags - source maps in <style> only works if the style tag is
+      // created and inserted dynamically. So we remove the server rendered
+      // styles and inject new ones.
+      styleElement.parentNode.removeChild(styleElement)
+    }
+  }
+
+  if (isOldIE) {
+    // use singleton mode for IE9.
+    var styleIndex = singletonCounter++
+    styleElement = singletonElement || (singletonElement = createStyleElement())
+    update = applyToSingletonTag.bind(null, styleElement, styleIndex, false)
+    remove = applyToSingletonTag.bind(null, styleElement, styleIndex, true)
+  } else {
+    // use multi-style-tag mode in all other cases
+    styleElement = createStyleElement()
+    update = applyToTag.bind(null, styleElement)
+    remove = function () {
+      styleElement.parentNode.removeChild(styleElement)
+    }
+  }
+
+  update(obj)
+
+  return function updateStyle (newObj /* StyleObjectPart */) {
+    if (newObj) {
+      if (newObj.css === obj.css &&
+          newObj.media === obj.media &&
+          newObj.sourceMap === obj.sourceMap) {
+        return
+      }
+      update(obj = newObj)
+    } else {
+      remove()
+    }
+  }
+}
+
+var replaceText = (function () {
+  var textStore = []
+
+  return function (index, replacement) {
+    textStore[index] = replacement
+    return textStore.filter(Boolean).join('\n')
+  }
+})()
+
+function applyToSingletonTag (styleElement, index, remove, obj) {
+  var css = remove ? '' : obj.css
+
+  if (styleElement.styleSheet) {
+    styleElement.styleSheet.cssText = replaceText(index, css)
+  } else {
+    var cssNode = document.createTextNode(css)
+    var childNodes = styleElement.childNodes
+    if (childNodes[index]) styleElement.removeChild(childNodes[index])
+    if (childNodes.length) {
+      styleElement.insertBefore(cssNode, childNodes[index])
+    } else {
+      styleElement.appendChild(cssNode)
+    }
+  }
+}
+
+function applyToTag (styleElement, obj) {
+  var css = obj.css
+  var media = obj.media
+  var sourceMap = obj.sourceMap
+
+  if (media) {
+    styleElement.setAttribute('media', media)
+  }
+  if (options.ssrId) {
+    styleElement.setAttribute(ssrIdKey, obj.id)
+  }
+
+  if (sourceMap) {
+    // https://developer.chrome.com/devtools/docs/javascript-debugging
+    // this makes source maps inside style tags work properly in Chrome
+    css += '\n/*# sourceURL=' + sourceMap.sources[0] + ' */'
+    // http://stackoverflow.com/a/26603875
+    css += '\n/*# sourceMappingURL=data:application/json;base64,' + btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))) + ' */'
+  }
+
+  if (styleElement.styleSheet) {
+    styleElement.styleSheet.cssText = css
+  } else {
+    while (styleElement.firstChild) {
+      styleElement.removeChild(styleElement.firstChild)
+    }
+    styleElement.appendChild(document.createTextNode(css))
+  }
+}