[FIX] web_editor: focus lost with inline editor

When an inline editor is eg. in a form view, the focus is always stolen
by it.

This is because we trigger a mouseup on the editor to update its
toolbars values and informations.

note: backport of 11.0's 7a453b0b7a

In 10.0 this trigger could cause a "blur" which in some instance is not
wanted (eg. inside a newline of a list view).

opw-1906581
closes #31078

addons/web_editor/static/lib/summernote/src/js/EventHandler.js

@@ -207,11 +207,15 @@ define([
         var layoutInfo = dom.makeLayoutInfo(target);
         /* ODOO: (start_modification */
         var $editable = layoutInfo.editable();
-        if (!event.isDefaultPrevented()) {
-          modules.editor.saveRange($editable);
+        if (event.setStyleInfoFromEditable) {
+            var styleInfo = modules.editor.styleFromNode($editable);
+        } else {
+            if (!event.isDefaultPrevented()) {
+              modules.editor.saveRange($editable);
+            }
+            var styleInfo = modules.editor.currentStyle(target);
         }
         /* ODOO: end_modification) */
-        var styleInfo = modules.editor.currentStyle(target);
         self.updateStyleInfo(styleInfo, layoutInfo);
       }, 0);
     };

addons/web_editor/static/src/js/backend.js

@@ -57,7 +57,8 @@ var FieldTextHtmlSimple = widget.extend({
         this.$translate.remove();
         this.$translate = $();
         // Triggers a mouseup to refresh the editor toolbar
-        this.$content.trigger('mouseup');
+        var mouseupEvent = $.Event('mouseup', {'setStyleInfoFromEditable': true});
+        this.$content.trigger(mouseupEvent);
         return def;
     },
     initialize_content: function () {