.

conf/wide.go

@@ -75,11 +75,13 @@ func FixedTimeCheckEnv() {
 		for _ = range time.Tick(time.Minute * 7) {
 			if "" == os.Getenv("GOPATH") {
 				glog.Fatal("Not found $GOPATH")
+
 				os.Exit(-1)
 			}
 
 			if "" == os.Getenv("GOROOT") {
 				glog.Fatal("Not found $GOROOT")
+
 				os.Exit(-1)
 			}
 
@@ -87,7 +89,8 @@ func FixedTimeCheckEnv() {
 			cmd := exec.Command(gocode, "close")
 			_, err := cmd.Output()
 			if nil != err {
-				event.EventQueue <- event.EvtCodeGocodeNotFound
+				event.EventQueue <- &event.Event{Code: event.EvtCodeGocodeNotFound}
+
 				glog.Warningf("Not found gocode [%s]", gocode)
 			}
 
@@ -95,7 +98,8 @@ func FixedTimeCheckEnv() {
 			cmd = exec.Command(ide_stub, "version")
 			_, err = cmd.Output()
 			if nil != err {
-				event.EventQueue <- event.EvtCodeIDEStubNotFound
+				event.EventQueue <- &event.Event{Code: event.EvtCodeIDEStubNotFound}
+
 				glog.Warningf("Not found ide_stub [%s]", ide_stub)
 			}
 		}

event/events.go

@@ -8,6 +8,7 @@ const (
 	EvtCodeGOROOTNotFound             // 事件代码：找不到环境变量 $GOROOT
 	EvtCodeGocodeNotFound             // 事件代码：找不到 gocode
 	EvtCodeIDEStubNotFound            // 事件代码：找不到 IDE stub
+	EvtCodeServerInternalError        // 事件代码：服务器内部错误
 )
 
 // 事件队列最大长度.
@@ -17,17 +18,18 @@ const MaxQueueLength = 10
 type Event struct {
 	Code int         `json:"code"` // 事件代码
 	Sid  string      `json:"sid"`  // 用户会话 id
+	Data interface{} `json:"data"` // 事件数据
 }
 
 // 全局事件队列.
 //
 // 入队的事件将分发到每个用户的事件队列中.
-var EventQueue = make(chan int, MaxQueueLength)
+var EventQueue = make(chan *Event, MaxQueueLength)
 
 // 用户事件队列.
 type UserEventQueue struct {
 	Sid      string      // 关联的会话 id
-	Queue    chan int  // 队列
+	Queue    chan *Event // 队列
 	Handlers []Handler   // 事件处理器集
 }
 
@@ -43,10 +45,12 @@ var UserEventQueues = Queues{}
 func Load() {
 	go func() {
 		for event := range EventQueue {
-			glog.V(5).Info("收到全局事件 [%d]", event)
+			glog.V(5).Infof("收到全局事件 [%d]", event.Code)
 
 			// 将事件分发到每个用户的事件队列里
 			for _, userQueue := range UserEventQueues {
+				event.Sid = userQueue.Sid
+
 				userQueue.Queue <- event
 			}
 		}
@@ -71,19 +75,18 @@ func (ueqs Queues) New(sid string) *UserEventQueue {
 
 	q = &UserEventQueue{
 		Sid:   sid,
-		Queue: make(chan int, MaxQueueLength),
+		Queue: make(chan *Event, MaxQueueLength),
 	}
 
 	ueqs[sid] = q
 
 	go func() { // 队列开始监听事件
-		for evtCode := range q.Queue {
+		for evt := range q.Queue {
-			glog.V(5).Infof("Session [%s] received a event [%d]", sid, evtCode)
+			glog.V(5).Infof("Session [%s] received a event [%d]", sid, evt.Code)
 
 			// 将事件交给事件处理器进行处理
 			for _, handler := range q.Handlers {
-				handler.Handle(&Event{Code: evtCode, Sid: sid})
+				handler.Handle(evt)
-
 			}
 		}
 	}()

file/files.go

@@ -1,4 +1,4 @@
-// 文件树操作.
+// File tree manipulations.
 package file
 
 import (
@@ -12,17 +12,18 @@ import (
 	"strings"
 
 	"github.com/b3log/wide/conf"
+	"github.com/b3log/wide/event"
 	"github.com/b3log/wide/session"
 	"github.com/b3log/wide/util"
 	"github.com/golang/glog"
 )
 
-// 文件节点，用于构造文件树.
+// File node, used to construct the file tree.
 type FileNode struct {
 	Name      string      `json:"name"`
 	Path      string      `json:"path"`
-	IconSkin  string      `json:"iconSkin"` // 值的末尾应该有一个空格
+	IconSkin  string      `json:"iconSkin"` // Value should be end with a space
-	Type      string      `json:"type"`     // "f"：文件，"d"：文件夹
+	Type      string      `json:"type"`     // "f": file，"d": directory
 	Mode      string      `json:"mode"`
 	FileNodes []*FileNode `json:"children"`
 }
@@ -175,7 +176,7 @@ func SaveFile(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-// 新建文件/目录.
+// NewFile handles request of creating file or directory.
 func NewFile(w http.ResponseWriter, r *http.Request) {
 	data := map[string]interface{}{"succ": true}
 	defer util.RetJSON(w, r, data)
@@ -191,10 +192,16 @@ func NewFile(w http.ResponseWriter, r *http.Request) {
 
 	path := args["path"].(string)
 	fileType := args["fileType"].(string)
+	sid := args["sid"].(string)
+
+	wSession := session.WideSessions.Get(sid)
 
 	if !createFile(path, fileType) {
 		data["succ"] = false
 
+		wSession.EventQueue.Queue <- &event.Event{Code: event.EvtCodeServerInternalError, Sid: sid,
+			Data: "can't create file " + path}
+
 		return
 	}
 
@@ -204,7 +211,7 @@ func NewFile(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-// 删除文件/目录.
+// RemoveFile handles request of removing file or directory.
 func RemoveFile(w http.ResponseWriter, r *http.Request) {
 	data := map[string]interface{}{"succ": true}
 	defer util.RetJSON(w, r, data)
@@ -225,7 +232,7 @@ func RemoveFile(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-// 在目录中搜索包含指定字符串的文件.
+// SearchText handles request of searching files under the specified directory with the specified keyword.
 func SearchText(w http.ResponseWriter, r *http.Request) {
 	data := map[string]interface{}{"succ": true}
 	defer util.RetJSON(w, r, data)

i18n/en_US.json

@@ -35,6 +35,7 @@
     "unread_notification": "Unread",
     "notification_2": "Not found [gocode], thereby [Autocomplete] will not work",
     "notification_3": "Not found [ide_stub], thereby [Jump to Decl], [Find Usages] will not work",
+    "notification_4": "Server internal error",
     "goto_line": "Goto Line",
     "go": "Go",
     "tip": "Tip",

i18n/ja_JP.json

@@ -35,6 +35,7 @@
     "unread_notification": "未読の通知",
     "notification_2": "[gocode] が見つかりません。[Autocomplete] は動作しません。",
     "notification_3": "[ide_stub] が見つかりません。[Jump to Decl]、[Find Usages] は動作しません。",
+    "notification_4": "内部サーバーエラー",
     "goto_line": "指定行にジャンプ",
     "go": "Go",
     "tip": "ヒント",

i18n/zh_CN.json

@@ -35,6 +35,7 @@
     "unread_notification": "未读通知",
     "notification_2": "没有检查到 gocode，这将会导致 [自动完成] 失效",
     "notification_3": "没有检查到 ide_stub，这将会导致 [跳转到声明]、[查找使用] 失效",
+    "notification_4": "服务器内部错误",
     "goto_line": "跳转到行",
     "go": "跳转",
     "tip": "提示",

notification/notifications.go

@@ -3,7 +3,6 @@ package notification
 
 import (
 	"net/http"
-
 	"time"
 
 	"strconv"
@@ -22,6 +21,7 @@ const (
 	Info  = "INFO"  // 通知.严重程度：INFO
 
 	Setup  = "Setup"  // 通知.类型：安装
+	Server = "Server" // 通知.类型：服务器
 )
 
 // 通知结构.
@@ -41,16 +41,7 @@ func event2Notification(e *event.Event) {
 	}
 
 	wsChannel := session.NotificationWS[e.Sid]
-
+	if nil == wsChannel {
-	var notification Notification
-
-	switch e.Code {
-	case event.EvtCodeGocodeNotFound:
-		notification = Notification{event: e, Type: Setup, Severity: Error}
-	case event.EvtCodeIDEStubNotFound:
-		notification = Notification{event: e, Type: Setup, Severity: Error}
-	default:
-		glog.Warningf("Can't handle event[code=%d]", e.Code)
 		return
 	}
 
@@ -58,13 +49,26 @@ func event2Notification(e *event.Event) {
 	username := httpSession.Values["username"].(string)
 	locale := conf.Wide.GetUser(username).Locale
 
-	// 消息国际化处理
+	var notification *Notification
-	notification.Message = i18n.Get(locale, "notification_"+strconv.Itoa(e.Code)).(string)
 
-	wsChannel.Conn.WriteJSON(&notification)
+	switch e.Code {
+	case event.EvtCodeGocodeNotFound:
+		fallthrough
+	case event.EvtCodeIDEStubNotFound:
+		notification = &Notification{event: e, Type: Setup, Severity: Error,
+			Message: i18n.Get(locale, "notification_"+strconv.Itoa(e.Code)).(string)}
+	case event.EvtCodeServerInternalError:
+		notification = &Notification{event: e, Type: Server, Severity: Error,
+			Message: i18n.Get(locale, "notification_"+strconv.Itoa(e.Code)).(string) + " [" + e.Data.(string) + "]"}
+	default:
+		glog.Warningf("Can't handle event[code=%d]", e.Code)
 
-	// 更新通道最近使用时间
+		return
-	wsChannel.Time = time.Now()
+	}
+
+	wsChannel.Conn.WriteJSON(notification)
+
+	wsChannel.Refresh()
 }
 
 // 建立通知通道.
@@ -101,6 +105,7 @@ func WSHandler(w http.ResponseWriter, r *http.Request) {
 			}
 
 			glog.Error("Notification WS ERROR: " + err.Error())
+
 			return
 		}
 	}

util/websocket.go

@@ -19,3 +19,8 @@ type WSChannel struct {
 func (c *WSChannel) Close() {
 	c.Conn.Close()
 }
+
+// Refresh refreshes the channel by updating its Time.
+func (c *WSChannel) Refresh() {
+	c.Time = time.Now()
+}