[FIX] web_editor: prevent crash with FieldTextHtmlSimple

If the method commitChange from the widget FieldTextHtmlSimple was
called in mode=readonly, a traceback was displayed.  This is not very
common, because most save operations are done in mode=edit, but it can
happen in readonly mode: when the user clicks on an action button, then
the form view is saved, if necessary.

To reproduce this bug, just open a form view for res.users, and click on
the Change Password button.

1 files changed, 1 insertions, 1 deletions

diff --git a/addons/web_editor/static/src/js/backend.js b/addons/web_editor/static/src/js/backend.js
index 8895ee0b99a..c12ab41b4bb 100644
--- a/addons/web_editor/static/src/js/backend.js
+++ b/addons/web_editor/static/src/js/backend.js
@@ -39,7 +39,7 @@ var FieldTextHtmlSimple = basic_fields.DebouncedField.extend({
      */
     commitChanges: function () {
         // switch to WYSIWYG mode if currently in code mode to get all changes
-        if (config.debug) {
+        if (config.debug && this.mode === 'edit') {
             var layoutInfo = this.$textarea.data('layoutInfo');
             $.summernote.pluginEvents.codeview(undefined, undefined, layoutInfo, false);
         }