<!DOCTYPE html>
<!--
Copyright 2015 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<link rel="import" href="/base/extension_registry.html">
<link rel="import" href="/core/scripting_object.html">

<script>
'use strict';

tr.exportTo('tr.c', function() {
  function ScriptingController(selectionController) {
    this.selectionController_ = selectionController;
    this.scriptObjectNames_ = [];
    this.scriptObjectValues_ = [];
    this.selectionController.addEventListener(
        'model-changed', this.onModelChanged_.bind(this));

    // Register all scripting objects.
    var typeInfos = ScriptingObjectRegistry.getAllRegisteredTypeInfos();
    typeInfos.forEach(function(typeInfo) {
      this.addScriptObject(typeInfo.metadata.name, typeInfo.constructor);
      // Also make the object available to the DevTools inspector.
      window[typeInfo.metadata.name] = typeInfo.constructor;
    }.bind(this));
  }

  function ScriptingObjectRegistry() {
  }
  var options = new tr.b.ExtensionRegistryOptions(tr.b.BASIC_REGISTRY_MODE);
  tr.b.decorateExtensionRegistry(ScriptingObjectRegistry, options);

  ScriptingController.prototype = {
    get selectionController() {
      return this.selectionController_;
    },

    onModelChanged_: function() {
      this.scriptObjectValues_.forEach(function(v) {
        if (v.onModelChanged)
          v.onModelChanged();
      });
    },

    addScriptObject: function(name, value) {
      this.scriptObjectNames_.push(name);
      this.scriptObjectValues_.push(value);
    },

    executeCommand: function(command) {
      var f = new Function(
          this.scriptObjectNames_, 'return eval(' + command + ')');
      return f.apply(null, this.scriptObjectValues_);
    }
  };

  return {
    ScriptingController: ScriptingController,
    ScriptingObjectRegistry: ScriptingObjectRegistry
  };
});
</script>