Configurable Connection Notifications

nodes/config/locales/en-US/ui_base.json

@@ -31,7 +31,11 @@
             "navigationStyleFixed": "Fixed",
             "navigationStyleIcon": "Collapse to icons",
             "navigationStyleTemporary": "Appear over content",
-            "navigationStyleNone": "Always hide"
+            "navigationStyleNone": "Always hide",
+            "connectionNotifications": "Connection Notifications",
+            "showReconnect": "Show reconnect notification",
+            "showDisconnect": "Show disconnect notification",
+            "notificationDisplayTime": "notification display time (seconds)"
         },
         "layout": {
             "pages": "Pages",

nodes/config/ui_base.html

@@ -347,6 +347,15 @@
             },
             titleBarStyle: {
                 value: 'default'
+            },
+            showReconnectNotification: {
+                value: true
+            },
+            notificationDisplayTime: {
+                value: 1
+            },
+            showDisconnectNotification: {
+                value: true
             }
         },
         label: function () {
@@ -372,6 +381,24 @@
             if (this.appIcon) {
                 $('#node-config-input-appIcon').val(this.appIcon)
             }
+
+            // backward compatibility for reconnect notification
+            if (!('showReconnectNotification' in this)) {
+                this.showReconnectNotification = true
+                $('#node-config-input-showReconnectNotification').prop('checked', true)
+            }
+
+            // backward compatibility for reconnect notification display time
+            if (!this.notificationDisplayTime) {
+                this.notificationDisplayTime = 5
+                $('#node-config-input-notificationDisplayTime').val(this.notificationDisplayTime)
+            }
+
+            // backward compatibility for disconnect notification
+            if (!('showDisconnectNotification' in this)) {
+                this.showDisconnectNotification = true
+                $('#node-config-input-showDisconnectNotification').prop('checked', true)
+            }
         },
         onpaletteadd: function () {
             // add the Dashboard 2.0 sidebar
@@ -2429,4 +2456,20 @@
         <input style="margin: 8px 0 10px 16px; width:20px;" type="checkbox" id="node-config-input-showPathInSidebar">
         <label style="width:auto" for="node-config-input-showPathInSidebar"><span data-i18n="ui-base.label.showPath"></span></label>
     </div>
+    <div class="form-row" style="margin-bottom: 0;">
+        <label style="font-weight: 600; width: auto;" data-i18n="ui-base.label.connectionNotifications"></label>
+    </div>
+    <div class="form-row form-row-flex" style="align-items: center;">
+        <input style="margin: 8px 0 10px 16px; width:20px;" type="checkbox" id="node-config-input-showReconnectNotification">
+        <label style="width:auto" for="node-config-input-showReconnectNotification"><span data-i18n="ui-base.label.showReconnect"></span></label>
+    </div>
+    <div class="form-row form-row-flex" style="align-items: center;">   
+        <input style="width: 50px; margin-left: 75px;" type="number" id="node-config-input-notificationDisplayTime">
+        <label style="width:auto" for="node-config-input-notificationDisplayTime"><span data-i18n="ui-base.label.notificationDisplayTime"></span></label>
+    </div>
+
+    <div class="form-row form-row-flex" style="align-items: center;">
+        <input style="margin: 8px 0 10px 16px; width:20px;" type="checkbox" id="node-config-input-showDisconnectNotification">
+        <label style="width:auto" for="node-config-input-showDisconnectNotification"><span data-i18n="ui-base.label.showDisconnect"></span></label>
+    </div>
 </script>

nodes/config/ui_base.js

@@ -62,11 +62,23 @@ module.exports = function (RED) {
             config.acceptsClientConfig = ['ui-control', 'ui-notification']
         }
 
+        // for those upgrading, we need these for backwards compatibility
         if (!('includeClientData' in config)) {
-            // for those upgrading, we need this for backwards compatibility
             config.includeClientData = true
         }
 
+        if (!('showReconnectNotification' in config)) {
+            config.showReconnectNotification = true
+        }
+
+        if (!('showDisconnectNotification' in config)) {
+            config.showDisconnectNotification = true
+        }
+
+        if (!('notificationDisplayTime' in config)) {
+            config.notificationDisplayTime = 5 // Show for 5 seconds
+        }
+
         // expose these properties at runtime
         node.acceptsClientConfig = config.acceptsClientConfig // which node types can be scoped to a specific client
         node.includeClientData = config.includeClientData // whether to include client data in msg payloads

ui/src/main.mjs

@@ -157,12 +157,16 @@ fetch('_setup')
                 retryCount = 0
                 disconnected = true
             }
-            // tell the user we're trying to connect
-            Alerts.emit('Connection Lost', 'Attempting to reconnect to server...', 'red', {
-                displayTime: 0, // displayTime 0 persists notifications until another notification closes it
-                allowDismiss: false,
-                showCountdown: false
-            })
+
+            const dashboard = store.getters['ui/dashboard']
+            if (dashboard?.showDisconnectNotification) {
+                // tell the user we're trying to connect
+                Alerts.emit('Connection Lost', 'Attempting to reconnect to server...', 'red', {
+                    displayTime: 0, // displayTime 0 persists notifications until another notification closes it
+                    allowDismiss: false,
+                    showCountdown: false
+                })
+            }
             // attempt to reconnect
             reconnect()
         })
@@ -171,12 +175,23 @@ fetch('_setup')
             console.log('SIO connected')
             // if we've just disconnected (i.e. aren't connecting for the first time)
             if (disconnected) {
+                // check vuex store here
+                const dashboard = store.getters['ui/dashboard']
+                if (dashboard?.showReconnectNotification) {
                 // send a notification/alert to the user to let them know the connection is live again
-                Alerts.emit('Connected', 'Connection re-established.', '#1BC318', {
-                    displayTime: 1,
-                    allowDismiss: true,
-                    showCountdown: true
-                })
+                    Alerts.emit('Connected', 'Connection re-established.', '#1BC318', {
+                        displayTime: dashboard?.notificationDisplayTime || 5, // default: 5 seconds
+                        allowDismiss: true,
+                        showCountdown: true
+                    })
+                } else {
+                    //, send a notification for 1 ms to close the disconnected notification
+                    Alerts.emit('Connected', 'Connection re-established.', '#1BC318', {
+                        displayTime: 0.001, // 1 ms
+                        allowDismiss: false,
+                        showCountdown: false
+                    })
+                }
             }
             disconnected = false
             clearTimeout(reconnectTO)

ui/src/store/ui.mjs

@@ -18,6 +18,11 @@ const getters = {
     dashboards (state) {
         return state.dashboards
     },
+    dashboard (state) {
+        const dashboards = Object.keys(state.dashboards)
+        const id = dashboards.length ? dashboards[0] : undefined
+        return id ? state.dashboards[id] : undefined
+    },
     pages (state) {
         return state.pages
     },