src/utils目录支持SSR (#51)

src/utils/clickoutside.js

@@ -6,6 +6,8 @@
  * <div v-clickoutside="handleClose">
  * ```
  */
+import Vue from 'vue';
+const isServer = Vue.prototype.$isServer;
 const clickoutsideContext = '@@clickoutsideContext';
 
 export default {
@@ -20,7 +22,7 @@ export default {
       methodName: binding.expression,
       arg: binding.arg || 'click'
     };
-    document.addEventListener(el[clickoutsideContext].arg, documentHandler);
+    !isServer && document.addEventListener(el[clickoutsideContext].arg, documentHandler);
   },
 
   update(el, binding) {
@@ -28,7 +30,7 @@ export default {
   },
 
   unbind(el) {
-    document.removeEventListener(
+    !isServer && document.removeEventListener(
       el[clickoutsideContext].arg,
       el[clickoutsideContext].documentHandler);
   },

src/utils/dom.js

@@ -1,3 +1,6 @@
+import Vue from 'vue';
+const isServer = Vue.prototype.$isServer;
+
 const trim = function(string) {
   return (string || '').replace(/^[\s\uFEFF]+|[\s\uFEFF]+$/g, '');
 };
@@ -66,7 +69,7 @@ export const once = function(el, event, fn) {
 };
 
 export const on = (function() {
-  if (document.addEventListener) {
+  if (!isServer && document.addEventListener) {
     return function(element, event, handler) {
       if (element && event && handler) {
         element.addEventListener(event, handler, false);
@@ -82,7 +85,7 @@ export const on = (function() {
 })();
 
 export const off = (function() {
-  if (document.removeEventListener) {
+  if (!isServer && document.removeEventListener) {
     return function(element, event, handler) {
       if (element && event) {
         element.removeEventListener(event, handler, false);