import

src/core/node.js

@@ -70,7 +70,18 @@ var MinderNode = KityMinder.MinderNode = kity.createClass( "MinderNode", {
         this.setData( 'type', type );
     },
     getType: function ( type ) {
-        return this.getData( 'type' );
+        var cached = this.getData( 'type' );
+        if ( cached ) {
+            return cached;
+        }
+        var level = 0;
+        while ( this.parent ) {
+            level++;
+            if ( level > 1 ) break;
+        }
+        cached = [ 'root', 'main', 'sub' ][ level ];
+        this.setData( 'type', cached );
+        return cached;
     },
     setText: function ( text ) {
         this.setData( 'text', text );
@@ -257,8 +268,8 @@ var MinderNode = KityMinder.MinderNode = kity.createClass( "MinderNode", {
             return false;
         }
         for ( var i = 0, ci;
-            ( ci = this.children[ i ] );i++ ) {
-            if ( ci.equals( node.children[i] ) === false ) {
+            ( ci = this.children[ i ] ); i++ ) {
+            if ( ci.equals( node.children[ i ] ) === false ) {
                 return false;
             }
         }
@@ -274,26 +285,26 @@ var MinderNode = KityMinder.MinderNode = kity.createClass( "MinderNode", {
     clearChildren: function () {
         this.children = [];
     },
-    isHighlight : function(){
-        return this.getTmpData('highlight')
+    isHighlight: function () {
+        return this.getTmpData( 'highlight' )
     },
-    setTmpData : function(a,v){
+    setTmpData: function ( a, v ) {
         var me = this;
-        if(utils.isObject(a)){
-            utils.each(a,function(val,key){
-                me.setTmpData(key,val)
-            })
+        if ( utils.isObject( a ) ) {
+            utils.each( a, function ( val, key ) {
+                me.setTmpData( key, val )
+            } )
         }
-        if(v === undefined || v === null || v === ''){
-            delete this.tmpData[a];
-        }else {
-            this.tmpData[a] = v;
+        if ( v === undefined || v === null || v === '' ) {
+            delete this.tmpData[ a ];
+        } else {
+            this.tmpData[ a ] = v;
         }
     },
-    getTmpData:function(a){
+    getTmpData: function ( a ) {
         if ( a === undefined ) {
             return this.tmpData;
         }
-        return this.tmpData[a]
+        return this.tmpData[ a ]
     }
 } );
\ No newline at end of file

src/module/dropfile.js

@@ -18,15 +18,11 @@ KityMinder.registerModule( "DropFile", function () {
 		var minder = this;
 		if ( e.dataTransfer.files ) {
 			var reader = new FileReader();
-			reader.onload = function () {};
-			var data = readFile( e.dataTransfer.files[ 0 ] );
-			minder.importData( data );
-		}
+			reader.onload = function ( e ) {
+				minder.importData( e.target.result );
+			};
+			reader.readAsText( e.dataTransfer.files[ 0 ] );
 		}
-
-	function readFile( e ) {
-		var reader = new FileReader();
-		return reader.readAsText();
 	}
 
 	return {