webui: Store config validity; Check before start task

* "updateFormConfigStatus()": Store the configuration validity as a
  custom data attribute.
* Check the current configuration validity before start the task on the
  server.

2 files changed, 17 insertions, 9 deletions

diff --git a/fg21sim/webui/static/js/configs.js b/fg21sim/webui/static/js/configs.js
index d05892b..4e635ae 100644
--- a/fg21sim/webui/static/js/configs.js
+++ b/fg21sim/webui/static/js/configs.js
@@ -262,28 +262,32 @@ var setFormConfigs = function (data, errors) {
 
 /**
  * Update the configuration form status indicator: "#conf-status"
+ * Also store the validity status in a custom data attribute.
  */
 var updateFormConfigStatus = function () {
+  var target = $("#conf-status");
   var recheck_icon = $("#conf-recheck");
   var invalid = $("#conf-form").find("input[name]:invalid");
   if (invalid.length) {
     // Exists invalid configurations
     console.warn("Found", invalid.length, "invalid configurations!");
     recheck_icon.show();
-    $("#conf-status").removeClass("label-default label-success")
+    target.removeClass("label-default label-success")
       .addClass("label-warning");
-    $("#conf-status .icon").removeClass("fa-question-circle fa-check-circle")
+    target.find(".icon").removeClass("fa-question-circle fa-check-circle")
       .addClass("fa-warning");
-    $("#conf-status .text").text("Invalid!");
+    target.find(".text").text("Invalid!");
+    target.data("validity", false);
   } else {
     // All valid
     // console.info("Great, all configurations are valid :)");
     recheck_icon.hide();
-    $("#conf-status").removeClass("label-default label-warning")
+    target.removeClass("label-default label-warning")
       .addClass("label-success");
-    $("#conf-status .icon").removeClass("fa-question-circle fa-warning")
+    target.find(".icon").removeClass("fa-question-circle fa-warning")
       .addClass("fa-check-circle");
-    $("#conf-status .text").text("Valid :)");
+    target.find(".text").text("Valid :)");
+    target.data("validity", true);
   }
 };
 
diff --git a/fg21sim/webui/static/js/websocket.js b/fg21sim/webui/static/js/websocket.js
index fdca619..26d7fce 100644
--- a/fg21sim/webui/static/js/websocket.js
+++ b/fg21sim/webui/static/js/websocket.js
@@ -227,9 +227,13 @@ $(document).ready(function () {
 
     // Start the task on the server
     $("#task-start").on("click", function () {
-      updateTaskStatus({running: true, finished: false});
-      startServerTask(g_ws);
-      getServerTaskStatus(g_ws);
+      if ($("#conf-status").data("validity")) {
+        updateTaskStatus({running: true, finished: false});
+        startServerTask(g_ws);
+        getServerTaskStatus(g_ws);
+      } else {
+        console.error("Exist invalid configuration values!");
+      }
     });
 
     /* Logging messages controls */