Ui control too chatty?

General
1

My situation

Currently I am facing an issue that the ui control node is emitting too often messages. I only want it to change the tab that is displayed to the user, but it also emits messages when the flow is restarted or when the browser is connecting to the node-red instance.

Tests I've made

In the below image, my simple test setup is shown. An inject node ("x") is connected to a ui control, which finally reports into a debug node. I adjusted the ui control node to "Change tab or group events only", insted of "Connect events only" or "Connect, lost, change tab or group events". All the three messages on the right side are originated from the debug node.

  • The first one appeared after restarting the flow.
  • The second message appeared when I opened the browser window
  • The third one appeared after injecting a message with the leftmost node

All the messages are containing the value change in the payload.

My problem

I would expect that the first two messages are not appearing with the given settings

To my opinion, the message should be at least different for the first two messages. In the documentation it is said that

When any browser client connects or loses connection, changes tab, or expands or collapses a group this node will emit a msg containing:

  • payload - connect , lost , change , or group .

So connect seems to me better suited for browser window opening or startup.

Has anyone made similar experiences?

image
image1632Ă—845 68.8 KB

2

This is the simplest flow to demonstrate the above mentioned behaviour:

[
    {
        "id": "40e05e66b371431f",
        "type": "tab",
        "label": "Flow 1",
        "disabled": false,
        "info": ""
    },
    {
        "id": "752031fa4315b740",
        "type": "tab",
        "label": "Flow 2",
        "disabled": false,
        "info": ""
    },
    {
        "id": "4d01417d37387e09",
        "type": "subflow",
        "name": "Suppress Connect Msg",
        "info": "",
        "category": "",
        "in": [
            {
                "x": 60,
                "y": 140,
                "wires": [
                    {
                        "id": "0e87aae8e625c3b8"
                    }
                ]
            }
        ],
        "out": [
            {
                "x": 780,
                "y": 200,
                "wires": [
                    {
                        "id": "7dafd4084b2d4ddb",
                        "port": 0
                    }
                ]
            }
        ],
        "env": [],
        "meta": {},
        "color": "#DDAA99"
    },
    {
        "id": "7a4e5eedce768290",
        "type": "ui_tab",
        "name": "Home",
        "icon": "dashboard",
        "disabled": false,
        "hidden": false
    },
    {
        "id": "2de998771a42e6cd",
        "type": "ui_base",
        "theme": {
            "name": "theme-light",
            "lightTheme": {
                "default": "#0094CE",
                "baseColor": "#0094CE",
                "baseFont": "-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif",
                "edited": true,
                "reset": false
            },
            "darkTheme": {
                "default": "#097479",
                "baseColor": "#097479",
                "baseFont": "-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif",
                "edited": false
            },
            "customTheme": {
                "name": "Untitled Theme 1",
                "default": "#4B7930",
                "baseColor": "#4B7930",
                "baseFont": "-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif"
            },
            "themeState": {
                "base-color": {
                    "default": "#0094CE",
                    "value": "#0094CE",
                    "edited": false
                },
                "page-titlebar-backgroundColor": {
                    "value": "#0094CE",
                    "edited": false
                },
                "page-backgroundColor": {
                    "value": "#fafafa",
                    "edited": false
                },
                "page-sidebar-backgroundColor": {
                    "value": "#ffffff",
                    "edited": false
                },
                "group-textColor": {
                    "value": "#1bbfff",
                    "edited": false
                },
                "group-borderColor": {
                    "value": "#ffffff",
                    "edited": false
                },
                "group-backgroundColor": {
                    "value": "#ffffff",
                    "edited": false
                },
                "widget-textColor": {
                    "value": "#111111",
                    "edited": false
                },
                "widget-backgroundColor": {
                    "value": "#0094ce",
                    "edited": false
                },
                "widget-borderColor": {
                    "value": "#ffffff",
                    "edited": false
                },
                "base-font": {
                    "value": "-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif"
                }
            },
            "angularTheme": {
                "primary": "indigo",
                "accents": "blue",
                "warn": "red",
                "background": "grey",
                "palette": "light"
            }
        },
        "site": {
            "name": "Node-RED Dashboard",
            "hideToolbar": "false",
            "allowSwipe": "false",
            "lockMenu": "false",
            "allowTempTheme": "true",
            "dateFormat": "DD/MM/YYYY",
            "sizes": {
                "sx": 48,
                "sy": 48,
                "gx": 6,
                "gy": 6,
                "cx": 6,
                "cy": 6,
                "px": 0,
                "py": 0
            }
        }
    },
    {
        "id": "1dd2f9c7af288162",
        "type": "ui_group",
        "name": "Default",
        "tab": "7a4e5eedce768290",
        "order": 1,
        "disp": true,
        "width": "6",
        "collapse": false
    },
    {
        "id": "1ee02f02c57a6d39",
        "type": "ui_tab",
        "name": "Home2",
        "icon": "dashboard",
        "disabled": false,
        "hidden": false
    },
    {
        "id": "61fcd3381637a8bc",
        "type": "ui_group",
        "name": "Default2",
        "tab": "1ee02f02c57a6d39",
        "order": 1,
        "disp": true,
        "width": "6",
        "collapse": false
    },
    {
        "id": "035db9e7d8ee42c8",
        "type": "inject",
        "z": "40e05e66b371431f",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "1",
        "payloadType": "num",
        "x": 150,
        "y": 160,
        "wires": [
            [
                "57d99e98fa45dcfb"
            ]
        ]
    },
    {
        "id": "57d99e98fa45dcfb",
        "type": "ui_ui_control",
        "z": "40e05e66b371431f",
        "name": "",
        "events": "change",
        "x": 300,
        "y": 120,
        "wires": [
            [
                "c5b88faef387ec76",
                "798d6fbe144f2fd7"
            ]
        ]
    },
    {
        "id": "8f0d7188ec16d89d",
        "type": "ui_button",
        "z": "40e05e66b371431f",
        "name": "",
        "group": "1dd2f9c7af288162",
        "order": 0,
        "width": 0,
        "height": 0,
        "passthru": false,
        "label": "button1",
        "tooltip": "",
        "color": "",
        "bgcolor": "",
        "icon": "",
        "payload": "1",
        "payloadType": "num",
        "topic": "topic",
        "topicType": "msg",
        "x": 140,
        "y": 80,
        "wires": [
            [
                "57d99e98fa45dcfb"
            ]
        ]
    },
    {
        "id": "8824cc20ca3fd59c",
        "type": "inject",
        "z": "752031fa4315b740",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "0",
        "payloadType": "num",
        "x": 150,
        "y": 160,
        "wires": [
            [
                "dccf41f6ecae1a9f"
            ]
        ]
    },
    {
        "id": "dccf41f6ecae1a9f",
        "type": "ui_ui_control",
        "z": "752031fa4315b740",
        "name": "",
        "events": "change",
        "x": 300,
        "y": 120,
        "wires": [
            [
                "2898664019ec43c6",
                "1a4083f42dc820ad"
            ]
        ],
        "inputLabels": [
            "2"
        ]
    },
    {
        "id": "2898664019ec43c6",
        "type": "debug",
        "z": "752031fa4315b740",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 450,
        "y": 160,
        "wires": []
    },
    {
        "id": "5bb20267f71c7d63",
        "type": "ui_button",
        "z": "752031fa4315b740",
        "name": "",
        "group": "61fcd3381637a8bc",
        "order": 0,
        "width": 0,
        "height": 0,
        "passthru": false,
        "label": "button2",
        "tooltip": "",
        "color": "",
        "bgcolor": "",
        "icon": "",
        "payload": "0",
        "payloadType": "num",
        "topic": "topic",
        "topicType": "msg",
        "x": 141.00000381469727,
        "y": 78.0000057220459,
        "wires": [
            [
                "dccf41f6ecae1a9f"
            ]
        ]
    },
    {
        "id": "0e87aae8e625c3b8",
        "type": "switch",
        "z": "4d01417d37387e09",
        "name": "",
        "property": "socketid",
        "propertyType": "global",
        "rules": [
            {
                "t": "eq",
                "v": "0",
                "vt": "str"
            },
            {
                "t": "null"
            },
            {
                "t": "else"
            }
        ],
        "checkall": "true",
        "repair": false,
        "outputs": 3,
        "x": 190,
        "y": 140,
        "wires": [
            [
                "1dbf5c32f073ecbd"
            ],
            [
                "7dfb88c583ddf8e9"
            ],
            [
                "7dafd4084b2d4ddb"
            ]
        ]
    },
    {
        "id": "c5b88faef387ec76",
        "type": "debug",
        "z": "40e05e66b371431f",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 450,
        "y": 160,
        "wires": []
    },
    {
        "id": "1dbf5c32f073ecbd",
        "type": "change",
        "z": "4d01417d37387e09",
        "name": "",
        "rules": [
            {
                "t": "set",
                "p": "socketid",
                "pt": "global",
                "to": "socketid",
                "tot": "msg"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 430,
        "y": 80,
        "wires": [
            []
        ]
    },
    {
        "id": "7dfb88c583ddf8e9",
        "type": "change",
        "z": "4d01417d37387e09",
        "name": "",
        "rules": [
            {
                "t": "set",
                "p": "socketid",
                "pt": "global",
                "to": "socketid",
                "tot": "msg"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 410,
        "y": 140,
        "wires": [
            []
        ]
    },
    {
        "id": "7dafd4084b2d4ddb",
        "type": "switch",
        "z": "4d01417d37387e09",
        "name": "",
        "property": "socketid",
        "propertyType": "msg",
        "rules": [
            {
                "t": "eq",
                "v": "socketid",
                "vt": "global"
            },
            {
                "t": "else"
            }
        ],
        "checkall": "true",
        "repair": false,
        "outputs": 2,
        "x": 470,
        "y": 300,
        "wires": [
            [],
            [
                "d84bed1948462852"
            ]
        ]
    },
    {
        "id": "7aa50663a94d641f",
        "type": "change",
        "z": "4d01417d37387e09",
        "name": "",
        "rules": [
            {
                "t": "set",
                "p": "socketid",
                "pt": "global",
                "to": "socketid",
                "tot": "msg"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 910,
        "y": 320,
        "wires": [
            []
        ]
    },
    {
        "id": "d84bed1948462852",
        "type": "delay",
        "z": "4d01417d37387e09",
        "name": "",
        "pauseType": "delay",
        "timeout": "1",
        "timeoutUnits": "seconds",
        "rate": "1",
        "nbRateUnits": "1",
        "rateUnits": "second",
        "randomFirst": "1",
        "randomLast": "5",
        "randomUnits": "seconds",
        "drop": false,
        "allowrate": false,
        "x": 680,
        "y": 320,
        "wires": [
            [
                "7aa50663a94d641f"
            ]
        ]
    },
    {
        "id": "1a4083f42dc820ad",
        "type": "ui_text",
        "z": "752031fa4315b740",
        "group": "61fcd3381637a8bc",
        "order": 1,
        "width": 0,
        "height": 0,
        "name": "",
        "label": "text",
        "format": "{{msg.payload}}",
        "layout": "row-spread",
        "x": 450,
        "y": 80,
        "wires": []
    },
    {
        "id": "798d6fbe144f2fd7",
        "type": "ui_text",
        "z": "40e05e66b371431f",
        "group": "1dd2f9c7af288162",
        "order": 1,
        "width": 0,
        "height": 0,
        "name": "",
        "label": "text",
        "format": "{{msg.payload}}",
        "layout": "row-spread",
        "x": 450,
        "y": 80,
        "wires": []
    }
]
3

In between, I've made a subflow to suppress the starting messages, but I'm not really happy with it.

[
    {
        "id": "40e05e66b371431f",
        "type": "tab",
        "label": "Flow 1",
        "disabled": false,
        "info": ""
    },
    {
        "id": "752031fa4315b740",
        "type": "tab",
        "label": "Flow 2",
        "disabled": false,
        "info": ""
    },
    {
        "id": "80b1aaaaebd95ddd",
        "type": "tab",
        "label": "init",
        "disabled": false,
        "info": ""
    },
    {
        "id": "4d01417d37387e09",
        "type": "subflow",
        "name": "Suppress Connect Msg",
        "info": "",
        "category": "",
        "in": [
            {
                "x": 60,
                "y": 140,
                "wires": [
                    {
                        "id": "0e87aae8e625c3b8"
                    }
                ]
            }
        ],
        "out": [
            {
                "x": 780,
                "y": 200,
                "wires": [
                    {
                        "id": "7dafd4084b2d4ddb",
                        "port": 0
                    }
                ]
            }
        ],
        "env": [],
        "meta": {},
        "color": "#DDAA99"
    },
    {
        "id": "7a4e5eedce768290",
        "type": "ui_tab",
        "name": "Home",
        "icon": "dashboard",
        "disabled": false,
        "hidden": false
    },
    {
        "id": "2de998771a42e6cd",
        "type": "ui_base",
        "theme": {
            "name": "theme-light",
            "lightTheme": {
                "default": "#0094CE",
                "baseColor": "#0094CE",
                "baseFont": "-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif",
                "edited": true,
                "reset": false
            },
            "darkTheme": {
                "default": "#097479",
                "baseColor": "#097479",
                "baseFont": "-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif",
                "edited": false
            },
            "customTheme": {
                "name": "Untitled Theme 1",
                "default": "#4B7930",
                "baseColor": "#4B7930",
                "baseFont": "-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif"
            },
            "themeState": {
                "base-color": {
                    "default": "#0094CE",
                    "value": "#0094CE",
                    "edited": false
                },
                "page-titlebar-backgroundColor": {
                    "value": "#0094CE",
                    "edited": false
                },
                "page-backgroundColor": {
                    "value": "#fafafa",
                    "edited": false
                },
                "page-sidebar-backgroundColor": {
                    "value": "#ffffff",
                    "edited": false
                },
                "group-textColor": {
                    "value": "#1bbfff",
                    "edited": false
                },
                "group-borderColor": {
                    "value": "#ffffff",
                    "edited": false
                },
                "group-backgroundColor": {
                    "value": "#ffffff",
                    "edited": false
                },
                "widget-textColor": {
                    "value": "#111111",
                    "edited": false
                },
                "widget-backgroundColor": {
                    "value": "#0094ce",
                    "edited": false
                },
                "widget-borderColor": {
                    "value": "#ffffff",
                    "edited": false
                },
                "base-font": {
                    "value": "-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif"
                }
            },
            "angularTheme": {
                "primary": "indigo",
                "accents": "blue",
                "warn": "red",
                "background": "grey",
                "palette": "light"
            }
        },
        "site": {
            "name": "Node-RED Dashboard",
            "hideToolbar": "false",
            "allowSwipe": "false",
            "lockMenu": "false",
            "allowTempTheme": "true",
            "dateFormat": "DD/MM/YYYY",
            "sizes": {
                "sx": 48,
                "sy": 48,
                "gx": 6,
                "gy": 6,
                "cx": 6,
                "cy": 6,
                "px": 0,
                "py": 0
            }
        }
    },
    {
        "id": "1dd2f9c7af288162",
        "type": "ui_group",
        "name": "Default",
        "tab": "7a4e5eedce768290",
        "order": 1,
        "disp": true,
        "width": "6",
        "collapse": false
    },
    {
        "id": "1ee02f02c57a6d39",
        "type": "ui_tab",
        "name": "Home2",
        "icon": "dashboard",
        "disabled": false,
        "hidden": false
    },
    {
        "id": "61fcd3381637a8bc",
        "type": "ui_group",
        "name": "Default2",
        "tab": "1ee02f02c57a6d39",
        "order": 1,
        "disp": true,
        "width": "6",
        "collapse": false
    },
    {
        "id": "035db9e7d8ee42c8",
        "type": "inject",
        "z": "40e05e66b371431f",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "1",
        "payloadType": "num",
        "x": 130,
        "y": 180,
        "wires": [
            [
                "57d99e98fa45dcfb"
            ]
        ]
    },
    {
        "id": "57d99e98fa45dcfb",
        "type": "ui_ui_control",
        "z": "40e05e66b371431f",
        "name": "",
        "events": "change",
        "x": 300,
        "y": 120,
        "wires": [
            [
                "d3bc6e7ba64cdb5c"
            ]
        ]
    },
    {
        "id": "8f0d7188ec16d89d",
        "type": "ui_button",
        "z": "40e05e66b371431f",
        "name": "",
        "group": "1dd2f9c7af288162",
        "order": 0,
        "width": 0,
        "height": 0,
        "passthru": false,
        "label": "button1",
        "tooltip": "",
        "color": "",
        "bgcolor": "",
        "icon": "",
        "payload": "1",
        "payloadType": "num",
        "topic": "topic",
        "topicType": "msg",
        "x": 120,
        "y": 60,
        "wires": [
            [
                "57d99e98fa45dcfb"
            ]
        ]
    },
    {
        "id": "8824cc20ca3fd59c",
        "type": "inject",
        "z": "752031fa4315b740",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "0",
        "payloadType": "num",
        "x": 130,
        "y": 180,
        "wires": [
            [
                "dccf41f6ecae1a9f"
            ]
        ]
    },
    {
        "id": "dccf41f6ecae1a9f",
        "type": "ui_ui_control",
        "z": "752031fa4315b740",
        "name": "",
        "events": "change",
        "x": 280,
        "y": 120,
        "wires": [
            [
                "e267bda721c86ed8"
            ]
        ],
        "inputLabels": [
            "2"
        ]
    },
    {
        "id": "2898664019ec43c6",
        "type": "debug",
        "z": "752031fa4315b740",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 830,
        "y": 180,
        "wires": []
    },
    {
        "id": "5bb20267f71c7d63",
        "type": "ui_button",
        "z": "752031fa4315b740",
        "name": "",
        "group": "61fcd3381637a8bc",
        "order": 0,
        "width": 0,
        "height": 0,
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]
4

It seems like it’s working to me. When it starts it goes from unknown to a known tab so it reports that. Then you reconnect a browser (as you can see a new socketid) so it reports the current tab for that socket. Then you tell it to change to tab 0 by the inject so it confirms that change.

1 Like
5

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