node-red-nodes/io/ping/88-ping.html

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  Copyright 2013 IBM Corp.

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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<script type="text/x-red" data-template-name="ping">
    <div class="form-row">
        <label for="node-input-host"><i class="icon-tasks"></i> Target</label>
        <input type="text" id="node-input-host" placeholder="www.google.com">
    </div>
    <div class="form-row">
        <label for="node-input-timer"><i class="icon-tasks"></i> Ping (S)</label>
        <input type="text" id="node-input-timer" placeholder="20">
    </div>
    <div class="form-row">
        <label for="node-input-name"><i class="icon-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
</script>

<!-- Next, some simple help text is provided for the node.                   -->
<script type="text/x-red" data-help-name="ping">
    <p>Pings a machine and returns the trip time in mS.</p>
    <p>Returns <b>false</b> if no response received within 3 seconds, or if the host is unresolveable.</p>
    <p>Default ping is every 20 seconds but can be configured.</p>
</script>

<!-- Finally, the node type is registered along with all of its properties   -->
<script type="text/javascript">
    RED.nodes.registerType('ping',{
        category: 'advanced-input',
        color:"#fdf0c2",
        defaults: {
            name: {value:""},
            host: {value:"",required:true},
            timer: {value:"20", required:true, validate:RED.validators.number()}
        },
        inputs:0,
        outputs:1,
        icon: "alert.png",
        label: function() {
            return this.name||this.host;
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        }
    });
</script>