From 322c238808a52fd025a4e19c90da19d09f40c591 Mon Sep 17 00:00:00 2001
From: Benjamin Dauvergne <bdauvergne@entrouvert.com>
Date: Wed, 3 Nov 2021 19:02:39 +0100
Subject: [PATCH 4/5] js: augment autosave delay if autosave fails (#58276)

---
 wcs/qommon/static/js/qommon.forms.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/wcs/qommon/static/js/qommon.forms.js b/wcs/qommon/static/js/qommon.forms.js
index 56cf790a..04542490 100644
--- a/wcs/qommon/static/js/qommon.forms.js
+++ b/wcs/qommon/static/js/qommon.forms.js
@@ -125,6 +125,9 @@ $(function() {
   var autosave_timeout_id = null;
   var autosave_is_running = false;
   var autosave_button_to_click_on_complete = null;
+  var autosave_delay_default = 5 * 1000; // 5 seconds
+  var autosave_delay_max = 5 * 60 * 1000; // 5 minutes
+  var autosave_delay = autosave_delay_default;
 
   if ($('form[data-has-draft]:not([data-autosave=false])').length == 1) {
     var last_auto_save = $('form[data-has-draft]').serialize();
@@ -143,10 +146,11 @@ $(function() {
         data: new_auto_save,
         success: function(json) {
           if (json.result == 'success') {
+            autosave_delay = autosave_delay_default;
             last_auto_save = new_auto_save;
           }
         },
-        complete: function() {
+        complete: function(jqxhr) {
           autosave_is_running = false;
           if (autosave_timeout_id !== null) {
               install_autosave();
@@ -154,6 +158,9 @@ $(function() {
           if (autosave_button_to_click_on_complete !== null) {
               autosave_button_to_click_on_complete.click();
           }
+          if (jqxhr.status != 200) { // network error
+              autosave_delay = Math.min(autosave_delay * 2, autosave_delay_max);
+          }
         }
       });
     }
@@ -161,7 +168,7 @@ $(function() {
     function install_autosave() {
        // debounce
        window.clearTimeout(autosave_timeout_id);
-       autosave_timeout_id = window.setTimeout(autosave, 5000);
+       autosave_timeout_id = window.setTimeout(autosave, autosave_delay);
     }
 
     $(document).on('mouseover scroll keydown', function() {
-- 
2.33.0