[IMP] web_editor: lazy load the wysiwyg

Issue: wysiwyg asset slow down the loading of the website, error
inadvertently introduced: https://github.com/odoo/odoo/pull/29775

The assets are now loaded assynchroneously, when the editor is needed,
its assets will be loaded.

closes odoo/odoo#30700

2 files changed, 6 insertions, 3 deletions

diff --git a/addons/mass_mailing/static/src/js/mass_mailing_widget.js b/addons/mass_mailing/static/src/js/mass_mailing_widget.js
index 12eec137545..cf97d3fd9a0 100644
--- a/addons/mass_mailing/static/src/js/mass_mailing_widget.js
+++ b/addons/mass_mailing/static/src/js/mass_mailing_widget.js
@@ -12,6 +12,9 @@ var _t = core._t;
 
 var MassMailingFieldHtml = FieldHtml.extend({
     xmlDependencies: (FieldHtml.prototype.xmlDependencies || []).concat(["/mass_mailing/static/src/xml/mass_mailing.xml"]),
+    jsLibs: [
+       '/mass_mailing/static/src/js/mass_mailing_snippets.js',
+    ],
 
     custom_events: _.extend({}, FieldHtml.prototype.custom_events, {
         snippets_loaded: '_onSnippetsLoaded',
@@ -305,7 +308,7 @@ var MassMailingFieldHtml = FieldHtml.extend({
                 this.$content.focusIn();
             }
         }
-        this.wysiwyg.snippets.trigger('reload_snippet_dropzones');
+        this.wysiwyg.trigger('reload_snippet_dropzones');
     },
 
     //--------------------------------------------------------------------------
@@ -442,7 +445,7 @@ var MassMailingFieldHtml = FieldHtml.extend({
             selectedTheme = themeParams;
 
             // Notify form view
-            self.wysiwyg._onChange();
+            self.wysiwyg.getEditable().trigger('change');
             $dropdown.find('.dropdown-menu').removeClass('show');
             $dropdown.find('.dropdown-item.selected').removeClass('selected');
             $dropdown.find('.dropdown-item:eq(' + themesParams.indexOf(selectedTheme) + ')').addClass('selected');
diff --git a/addons/mass_mailing/static/tests/mass_mailing_html_tests.js b/addons/mass_mailing/static/tests/mass_mailing_html_tests.js
index 36bea2db624..0657278ec16 100644
--- a/addons/mass_mailing/static/tests/mass_mailing_html_tests.js
+++ b/addons/mass_mailing/static/tests/mass_mailing_html_tests.js
@@ -46,7 +46,7 @@ QUnit.module('field html', {
                 }
                 if (xmlId === 'template.assets_all_style') {
                     return $.when({
-                        cssLibs: $('head link[href]:not([type="image/x-icon"])').map(function () {
+                        cssLibs: $('link[href]:not([type="image/x-icon"])').map(function () {
                             return $(this).attr('href');
                         }).get(),
                         cssContents: ['.field_body {background-color: red;}']