[REF] web, *: improve behavior of jQuery extension 'prependEvent'

* web_editor

Odoo extends jQuery to add some utility functions. The 'prependEvent'
one add the possibility to add an event handler on an element (like
the jQuery built-in 'on' function) but to be executed before the
already binded ones.

This function was however incomplete and did not allow to use jQuery
namespaced events.

addons/web/static/src/js/libs/jquery.js

@@ -110,7 +110,8 @@ $.fn.extend({
         events = events.split(' ');
         return this.each(function () {
             var el = this;
-            _.each(events, function (evName) {
+            _.each(events, function (evNameNamespaced) {
+                var evName = evNameNamespaced.split('.')[0];
                 var handler = $._data(el, 'events')[evName].pop();
                 $._data(el, 'events')[evName].unshift(handler);
             });

addons/web_editor/static/src/js/translator.js

@@ -207,7 +207,7 @@ var Translate = Widget.extend({
             var trans = self.getTranlationObject(this);
             trans.value = (trans.value ? trans.value : $node.html() ).replace(/[ \t\n\r]+/, ' ');
         });
-        this.$target.parent().prependEvent('click', this, this.__unbind_click);
+        this.$target.parent().prependEvent('click.translator', this, this.__unbind_click);
 
         // attributes
 
@@ -221,14 +221,14 @@ var Translate = Widget.extend({
             });
         });
 
-        this.$target_attr.prependEvent('mousedown click mouseup', this, this.__translate_attribute);
+        this.$target_attr.prependEvent('mousedown.translator click.translator mouseup.translator', this, this.__translate_attribute);
 
         console.info('Click on CTRL when you click in an translatable area to have the default behavior');
     },
     unarkTranslatableNode: function () {
         this.$target.removeClass('o_editable').removeAttr('contentEditable');
-        this.$target.parent().off('click', this.__unbind_click);
-        this.$target_attr.off('mousedown click mouseup', this.__translate_attribute);
+        this.$target.parent().off('.translator');
+        this.$target_attr.off('.translator');
     },
     save_and_reload: function () {
         return this.save().then(function () {