[IMP] web,web_kanban: Dialog.confirm api

takes now an object of options for the Dialog, containing two possible
callbacks (for confirm and cancel).

addons/web/static/src/js/framework/dialog.js

@@ -147,24 +147,28 @@ var Dialog = Widget.extend({
 
 
 // static method to open simple confirm dialog
-Dialog.confirm = function (owner, message, confirm_callback) {
+Dialog.confirm = function (owner, message, options) {
     var buttons = [
         {
             text: _t("Ok"),
             classes: 'btn-primary',
             close: true,
-            click: confirm_callback
+            click: options && options.confirm_callback
         },
-        {text: _t("Cancel"), close: true}
+        {
+            text: _t("Cancel"),
+            close: true,
+            click: options && options.cancel_callback
+        }
     ];
-    return new Dialog(owner, {
+    return new Dialog(owner, _.extend({
         size: 'medium',
         buttons: buttons,
         $content: $('<div>', {
             text: message,
         }),
-    }).open();
-}
+    }, options)).open();
+};
 
 return Dialog;
 

addons/web_kanban/static/src/js/kanban_view.js

@@ -448,7 +448,7 @@ var KanbanView = View.extend({
             });
         }
         if (this.options.confirm_on_delete) {
-            Dialog.confirm(this, _t("Are you sure you want to delete this record ?"), do_it);
+            Dialog.confirm(this, _t("Are you sure you want to delete this record ?"), { confirm_callback: do_it });
         } else {
             do_it();
         }