Cleaned up the commander

desktop/sources/scripts/core/commander.js

@@ -1,23 +1,45 @@
 function Commander () {
   this.el = document.createElement('yu')
   this.el.id = 'commander'
-  this.input_el = document.createElement('textarea')
-  this.input_el.value = `
+  this._input = document.createElement('textarea')
+  this._status = document.createElement('div')
+  this._status.id = 'status'
+
+  this.install = function (host) {
+    this.el.appendChild(this._input)
+    this.el.appendChild(this._status)
+    host.appendChild(this.el)
+
+    this._input.addEventListener('input', this.onInput)
+  }
+
+  this.start = function () {
+    this._input.value = `
+; Get Image
+
+(load "../media/test.png" 
+  (rect 0 0 600 600))
+
+; Some operations
+
 (scale 0.5 0.5 
   (resize 150 150 
     (crop 
       (rect 0 0 300 300))))`.trim()
 
-  this.install = function () {
-    this.el.appendChild(this.input_el)
-    ronin.el.appendChild(this.el)
-    this.input_el.focus()
+    this._status.textContent = 'Idle.'
+
+    this._input.focus()
   }
 
   this.update = function () {
 
   }
 
+  this.onInput = function () {
+
+  }
+
   this.getQuery = function () {
 
   }