show an indication for offline minions that is also visible when cach…

…ed info is used

docs/README.md

@@ -280,6 +280,7 @@ The display of the IP-numbers can simply be disabled by choosing a non-existing
 SaltGUI will retrieve cached grains information when variable `saltgui_use_cache_for_grains` is set to `true`.
 In that case, unreachable minions will appear without warnings for that.
 In all cases, the information may be less accurate.
+A warning for offline minions is only shown on the Minions panel.
 
 ## Pillars
 Pillars potentially contain security senstitive information.
@@ -298,6 +299,7 @@ saltgui_public_pillars:
 SaltGUI will retrieve cached pillar information when variable `saltgui_use_cache_for_pillar` is set to `true`.
 In that case, unreachable minions will appear without warnings for that.
 In all cases, the information may be less accurate.
+A warning for offline minions is only shown on the Minions panel.
 
 ## Nodegroups
 The Nodegroups page shows all minions, but groups the minions by their nodegroup.

saltgui/static/scripts/panels/Minions.js

@@ -157,7 +157,9 @@ export class MinionsPanel extends Panel {
     const minionIds = pWheelMinionsConnectedData.return[0].data.return;
 
     for (const tr of this.table.tBodies[0].childNodes) {
-      if (minionIds.indexOf(tr.dataset.minionId) >= 0) {
+      tr.dataset.isConnected = minionIds.indexOf(tr.dataset.minionId) >= 0;
+
+      if (tr.dataset.isConnected) {
         // skip the connected minions
         continue;
       }

saltgui/static/scripts/panels/Panel.js

@@ -569,7 +569,10 @@ export class Panel {
 
     const minionTr = this.getElement(Utils.getIdFromMinionId(pMinionId));
 
-    minionTr.appendChild(Utils.createTd("minion-id", pMinionId));
+    const minionSpan = Utils.createSpan("minion-id", pMinionId);
+    const minionTd = Utils.createTd();
+    minionTd.append(minionSpan);
+    minionTr.appendChild(minionTd);
 
     // which grain to use for IP-number display
     // typical choices are "fqdn_ip4", "ipv4", "fqdn_ip6" or "ipv6"
@@ -611,6 +614,14 @@ export class Panel {
       minionTr.appendChild(accepted);
     }
 
+    if (minionTr.dataset.isConnected === "false") {
+      Panel.addPrefixIcon(minionSpan, Character.WARNING_SIGN);
+      Utils.addToolTip(
+        minionSpan,
+        "This minion is currently not connected",
+        "bottom-left");
+    }
+
     minionTr.dataset.minionId = pMinionId;
 
     let saltversion = Character.EM_DASH;