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+<!--
+  Copyright 2014 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.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+
+<script type="text/x-red" data-template-name="trigger">
+    <div class="form-row">
+        <label for="node-input-op1type"><i class="fa fa-arrow-up"></i> Output</label>
+        <select id="node-input-op1type" style="width:73% !important">
+            <option value="val">the value below</option>
+            <option value="pay">the existing payload</option>
+            <option value="nul">nothing (no output)</option>
+        </select>
+    </div>
+    <div class="form-row" id="node-op1">
+        <label for="node-input-op1">&nbsp;</label>
+        <input type="text" id="node-input-op1">
+    </div>
+    <div class="form-row">
+        <label for="node-input-duration"><i class="fa fa-clock-o"></i> then wait</label>
+        <input type="text" id="node-input-duration" placeholder="250" style="direction:rtl; width:70px !important">
+        <select id="node-input-units" style="width:140px !important">
+            <option value="ms">Milliseconds</option>
+            <option value="s">Seconds</option>
+            <option value="min">Minutes</option>
+            <option value="hr">Hours</option>
+        </select>
+    </div>
+    <div class="form-row">
+        <label for="node-input-op2type"><i class="fa fa-arrow-down"></i> output</label>
+        <select id="node-input-op2type" style="width:73% !important">
+            <option value="val">the value below</option>
+            <option value="pay">the existing payload</option>
+            <option value="nul">nothing (no output)</option>
+        </select>
+    </div>
+    <div class="form-row" id="node-op2">
+        <label for="node-input-op2">&nbsp;</label>
+        <input type="text" id="node-input-op2">
+    </div>
+    <div class="form-row">
+        <label for="node-input-extend"><i class="fa fa-repeat"></i> and</label>
+        <select id="node-input-extend" style="width:73% !important">
+            <option value="false">don't extend the timer if retriggered</option>
+            <option value="true">extend the timer if retriggered</option>
+        </select>
+    </div>
+    <div class="form-row">
+        <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
+        <input type="text" id="node-input-name" placeholder="Name">
+    </div>
+    <!-- <div class="form-tips">Tip: Outputs can be values, null, {{templated}} or msg.payload<br/> -->
+    <div class="form-tips">Setting the timeout to 0 sets an infinite timeout = single shot.</div>
+    <script>
+    {
+        $("#node-input-op1type").change(function() {
+            if ($("#node-input-op1type").val() == "val") { $("#node-op1").show(); }
+            else { $("#node-op1").hide(); }
+        });
+        $("#node-input-op2type").change(function() {
+            if ($("#node-input-op2type").val() == "val") { $("#node-op2").show(); }
+            else { $("#node-op2").hide(); }
+        });
+    }
+    </script>
+</script>
+
+<script type="text/x-red" data-help-name="trigger">
+    <p>Creates two messages on the output separated by a timeout whenever ANY <b>msg</b> arrives on the input.</p>
+    <p>For example, this can be used to toggle a Raspberry PI GPIO pin on and off.</p>
+    <p>The two output states can be specified as can the duration of the timer.
+    Either output can be set to a value, or templated from the inbound
+    <b>msg</b> using mustache syntax. <pre>The payload is {{payload}}</pre></p>
+    <p>If the payload is an object then setting the output to <i>existing payload</i> will pass the complete payload object through.</p>
+    <p>Optionally the timer can be extended by being retriggered... or not.</p>
+    <p>By setting the first output to <i>nothing</i>, and selecting extend timer - a watchdog timer can be created.
+    No output will happen as long as repeated inputs occur within the timeout period.</p>
+    <p>Setting the timer to 0 creates an "infinite" timeout - the first output will happen but the second
+    never will, and neither can the first be retriggered - so a true one shot.</p>
+    <p>If a <b>msg.reset</b> property is present any timeout currently in progress
+    will be cleared and the second output will not happen.</p>
+</script>
+
+<script type="text/javascript">
+    RED.nodes.registerType('trigger',{
+        category: 'function',
+        color:"#E6E0F8",
+        defaults: {
+            op1: {value:"1"},
+            op2: {value:"0"},
+            op1type: {value:""},
+            op2type: {value:""},
+            duration: {value:"250",required:true,validate:RED.validators.number()},
+            extend: {value:"false"},
+            units: {value: "ms"},
+            name: {value:""}
+        },
+        inputs:1,
+        outputs:1,
+        icon: "trigger.png",
+        label: function() {
+            if (this.duration > 0) {
+                return this.name||"trigger "+this.duration+this.units;
+            }
+            else {
+                return this.name||"trigger once &infin;";
+            }
+        },
+        labelStyle: function() {
+            return this.name?"node_label_italic":"";
+        },
+        oneditprepare: function() {
+            $( "#node-input-duration" ).spinner({
+                min:1,
+                increment:25
+            });
+        }
+    });
+</script>