Add the possibility to use plugins assigned in `window`

src/index.js

@@ -1,6 +1,6 @@
 import $ from 'cash-dom';
 import Editor from './editor';
-import { isElement } from 'underscore';
+import { isElement, isFunction } from 'underscore';
 import polyfills from 'utils/polyfills';
 import PluginManager from './plugin_manager';
 
@@ -54,12 +54,19 @@ module.exports = (() => {
 
       // Load plugins
       config.plugins.forEach(pluginId => {
-        const plugin = plugins.get(pluginId);
+        let plugin = plugins.get(pluginId);
+        const plgOptions = config.pluginsOpts[pluginId] || {};
+
+        // Try to search in global context
+        if (!plugin) {
+          const wplg = window[pluginId];
+          plugin = wplg && wplg.defaults ? wplg.defaults : wplg;
+        }
 
         if (plugin) {
-          plugin(editor, config.pluginsOpts[pluginId] || {});
-        } else if (typeof pluginId === 'function') {
-          pluginId(editor, config.pluginsOpts[pluginId] || {});
+          plugin(editor, plgOptions);
+        } else if (isFunction(pluginId)) {
+          pluginId(editor, plgOptions);
         } else {
           console.warn(`Plugin ${pluginId} not found`);
         }

test/specs/grapesjs/index.js

@@ -310,6 +310,18 @@ describe('GrapesJS', () => {
       expect(editor.customValue).toEqual('TEST');
     });
 
+    test('Use plugins defined on window, with custom options', () => {
+      window.globalPlugin = (edt, opts) => {
+        var opts = opts || {};
+        edt.customValue = opts.cVal || '';
+      };
+      config.plugins = ['globalPlugin'];
+      config.pluginsOpts = {};
+      config.pluginsOpts['globalPlugin'] = { cVal: 'TEST' };
+      var editor = obj.init(config);
+      expect(editor.customValue).toEqual('TEST');
+    });
+
     test('Execute custom command', () => {
       var editor = obj.init(config);
       editor.testVal = '';