support file as function

Author: njleonzhang

README.md

@@ -17,9 +17,22 @@ A plugin for docsify to generate a `edit on github` button on every pages. click
 </script>
 ```
 
-* `docBase`: the document folder of your github project (e.g.: https://github.com/docsifyjs/docsify/blob/master/docs/)
-* `docEditBase`: edit link of your github pages, by default, this is set automatically according to `docBase`
-* `title`: the text of the button, default value: `Edit on github`
+* `docBase`: [String] the document folder of your github project (e.g.: https://github.com/docsifyjs/docsify/blob/master/docs/)
+* `docEditBase`: [String] edit link of your github pages, by default, this is set automatically according to `docBase`
+* `title`: [String | Function] the text of the button, default value: `Edit on github`. If passed as function, then the title can be customized according to file path. for example:
+  ```
+    EditOnGithubPlugin.create(
+      'https://github.com/docsifyjs/docsify/blob/master/docs/',
+      null,
+      function(file) {
+        if (file.indexOf('en') === -1) {
+          return '编辑'
+        } else {
+          return 'edit on git'
+        }
+      }
+    )
+  ```
 
 [Code example](https://github.com/njleonzhang/vue-data-tables/blob/6bb632419506a14ceff559708180883097d5afa2/docs/index.html#L179-L181)
 

index.html

@@ -16,8 +16,19 @@
       name: 'docsify-edit-on-github',
       repo: 'https://github.com/njleonzhang/docsify-edit-on-github',
       plugins: [
+        // EditOnGithubPlugin.create(
+        //   'https://github.com/njleonzhang/docsify-edit-on-github/blob/master/'
+        // ),
         EditOnGithubPlugin.create(
-          'https://github.com/njleonzhang/docsify-edit-on-github/blob/master/'
+          'https://gitlab.meipian.cn/fore/project/article-core/blob/master/',
+          null,
+          function(file) {
+            if (file.indexOf('en') === -1) {
+              return '编辑'
+            } else {
+              return 'edit on git'
+            }
+          }
         )
       ]
     }

index.js

@@ -1,4 +1,8 @@
 ;(function(win) {
+  function isFunction(functionToCheck) {
+   return functionToCheck && {}.toString.call(functionToCheck) === '[object Function]'
+  }
+
   win.EditOnGithubPlugin = {}
 
   function create(docBase, docEditBase, title) {
@@ -20,23 +24,36 @@
 
     win.EditOnGithubPlugin.editDoc = editDoc
 
-    return function(hook, vm) {
-      win.EditOnGithubPlugin.onClick = function(event) {
-        EditOnGithubPlugin.editDoc(event, vm)
-      }
-
-      var header = [
+    function generateHeader(title) {
+      return header = [
         '<div style="overflow: auto">',
         '<p style="float: right"><a style="text-decoration: underline; cursor: pointer"',
-        'target="_blank" onclick="EditOnGithubPlugin.onClick(event)">',
+        'onclick="EditOnGithubPlugin.onClick(event)">',
         title,
         '</a></p>',
         '</div>'
       ].join('')
+    }
+
+    return function(hook, vm) {
+      win.EditOnGithubPlugin.onClick = function(event) {
+        EditOnGithubPlugin.editDoc(event, vm)
+      }
+
+      if (isFunction(title)) {
+
+        hook.afterEach(function (html) {
+          return generateHeader(title(vm.route.file)) + html
+        })
+      } else {
+        var header = generateHeader(title)
+
+        hook.afterEach(function (html) {
+          return header + html
+        })
+      }
+
 
-      hook.afterEach(function (html) {
-        return header + html
-      })
     }
   }