fix codepad extension API bugs

src/packages/CodePad/BaseExtension.ts

@@ -435,7 +435,13 @@ namespace OS {
                 `${this.app.currdir.path}/${file}`
                     .asFileHandle()
                     .read("json")
-                    .then((data) => resolve(data))
+                    .then((data) => {
+                        if(!data.root && this.app.currdir)
+                        {
+                            data.root = this.app.currdir.path;
+                        }
+                        resolve(data);
+                    })
                     .catch((e) => {
                         return reject(
                             API.throwe(__("Unable to read meta-data"))

src/packages/CodePad/ExtensionMaker.ts

@@ -293,7 +293,9 @@ namespace OS {
                     await API.requires(path);
                     let v: GenericObject<any>;
                     if (this.app.extensions[meta.meta.name]) {
-                        this.app.extensions[meta.meta.name].child = [];
+                        this.app.extensions[meta.meta.name].text = meta.meta.text;
+                        this.app.extensions[meta.meta.name].nodes = [];
+                        this.app.extensions[meta.meta.name].ext =  new App.extensions[meta.meta.name](this.app); 
                         for (v of meta.meta.actions) {
                             this.app.extensions[meta.meta.name].addAction(v);
                         }

src/packages/CodePad/main.ts

@@ -428,6 +428,7 @@ namespace OS {
                     stat.column + 1,
                     stat.line
                 );
+                if(stat.langmode)
                     this.langstat.text = stat.langmode.text;
                 this.filestat.text = stat.file
             }

src/packages/CodePad/templates/ext-extension.tpl

@@ -1,5 +1,4 @@
 {
-    "root": "{1}",
     "javascripts": [],
     "coffees": ["{0}.coffee"],
     "copies": [],

src/packages/CodePad/templates/sdk-project.tpl

@@ -1,6 +1,5 @@
 {
     "name": "{0}",
-    "root": "{1}",
     "css": [],
     "javascripts": [],
     "coffees": ["coffees/main.coffee"],