mirror of https://github.com/node-red/node-red.git
Add switch node
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Nicholas O'Leary
parent
fff61861c1
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32fcd12919
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<!--
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Copyright 2013 IBM Corp.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<script type="text/x-red" data-template-name="switch">
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<div class="form-row">
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<label for="node-input-name"><i class="icon-tag"></i> Name</label>
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<input type="text" id="node-input-name" placeholder="Name">
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</div>
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<div class="form-row" style="padding-top:10px;">
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If msg.<input type="text" id="node-input-property" style="width: 200px;"/>
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</div>
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<div class="form-row">
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<div id="node-input-rule-container-div" style="border-radius: 5px; height: 310px; padding: 5px; border: 1px solid #ccc; overflow-y:scroll;">
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<ol id="node-input-rule-container" style=" list-style-type:none; margin: 0;">
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</ol>
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</div>
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<a href="#" class="btn btn-mini" id="node-input-add-rule" style="margin-top: 4px;"><i class="icon-plus"></i> Add</a>
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</div>
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</script>
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<script type="text/x-red" data-help-name="switch">
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<p>A simple function node to route messages based on its properties.</p>
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<p>When a message arrives, the selected property is evaluated against each
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of the defined rules. The message is then sent to the output of <i>all</i>
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rules that pass.</p>
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</script>
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<script type="text/javascript">
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RED.nodes.registerType('switch',{
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color:"#E2D96E",
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category: 'function',
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defaults: {
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name: {value:""},
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property: {value: "payload",required:true},
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rules:{value:[{t:"eq",v:""}]},
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outputs:{value:1}
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},
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inputs:1,
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outputs:1,
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icon: "switch.png",
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label: function() {
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return this.name;
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},
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oneditprepare: function() {
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var operators = [
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{v:"eq",t:"=="},
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{v:"neq",t:"!="},
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{v:"lt",t:"<"},
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{v:"lte",t:"<="},
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{v:"gt",t:">"},
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{v:"gte",t:">="},
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{v:"btwn",t:"is between"},
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{v:"cont",t:"contains"},
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{v:"regex",t:"matches regex"},
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{v:"true",t:"is true"},
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{v:"false",t:"is false"},
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{v:"null",t:"is null"},
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{v:"nnull",t:"is not null"}
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];
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function generateRule(i,rule) {
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var container = $('<li/>',{style:"margin:0; padding:8px 0px; border-bottom: 1px solid #ccc;"});
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var row = $('<div/>').appendTo(container);
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var row2 = $('<div/>',{style:"padding-top: 5px; text-align: right;"}).appendTo(container);
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var selectField = $('<select/>',{style:"width:120px; margin-left: 5px; text-align: center;"}).appendTo(row);
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for (var d in operators) {
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selectField.append($("<option></option>").val(operators[d].v).text(operators[d].t));
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}
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var valueField = $('<input/>',{class:"node-input-rule-value",type:"text",style:"margin-left: 5px; width: 145px;"}).appendTo(row);
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var btwnField = $('<span/>').appendTo(row);
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var btwnValueField = $('<input/>',{class:"node-input-rule-btwn-value",type:"text",style:"margin-left: 5px; width: 50px;"}).appendTo(btwnField);
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btwnField.append(" and ");
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var btwnValue2Field = $('<input/>',{class:"node-input-rule-btwn-value2",type:"text",style:"width: 50px;margin-left:2px;"}).appendTo(btwnField);
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var finalspan = $('<span/>',{style:"float: right; margin-top: 3px;margin-right: 10px;"}).appendTo(row);
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finalspan.append(' send to <span class="node-input-rule-index">'+i+'</span> ');
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selectField.change(function() {
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var type = selectField.children("option:selected").val();
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if (type.length < 4) {
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selectField.css({"width":"60px"});
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} else if (type === "regex") {
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selectField.css({"width":"147px"});
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} else {
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selectField.css({"width":"120px"});
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}
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if (type === "btwn") {
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valueField.hide();
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btwnField.show();
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} else {
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btwnField.hide();
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if (type === "true" || type === "false" || type === "null" || type === "nnull") {
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valueField.hide();
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} else {
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valueField.show();
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}
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}
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});
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var deleteButton = $('<a/>',{href:"#",class:"btn btn-mini", style:"margin-left: 5px;"}).appendTo(finalspan);
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$('<i/>',{class:"icon-remove"}).appendTo(deleteButton);
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deleteButton.click(function() {
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container.css({"background":"#fee"});
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container.fadeOut(300, function() {
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$(this).remove();
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$("#node-input-rule-container").children().each(function(i) {
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$(this).find(".node-input-rule-index").html(i+1);
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});
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});
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});
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$("#node-input-rule-container").append(container);
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selectField.find("option").filter(function() {return $(this).val() == rule.t;}).attr('selected',true);
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if (rule.t == "btwn") {
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btwnValueField.val(rule.v);
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btwnValue2Field.val(rule.v2);
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} else if (rule.v) {
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valueField.val(rule.v);
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}
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selectField.change();
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}
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$("#node-input-add-rule").click(function() {
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generateRule($("#node-input-rule-container").children().length+1,{t:"",v:"",v2:""});
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$("#node-input-rule-container-div").scrollTop($("#node-input-rule-container-div").get(0).scrollHeight);
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});
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for (var i=0;i<this.rules.length;i++) {
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var rule = this.rules[i];
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generateRule(i+1,rule);
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}
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function switchDialogResize(ev,ui) {
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$("#node-input-rule-container-div").css("height",(ui.size.height-260)+"px");
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};
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$( "#dialog" ).on("dialogresize", switchDialogResize);
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$( "#dialog" ).one("dialogopen", function(ev) {
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var size = $( "#dialog" ).dialog('option','sizeCache-switch');
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if (size) {
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switchDialogResize(null,{size:size});
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}
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});
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$( "#dialog" ).one("dialogclose", function(ev,ui) {
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$( "#dialog" ).off("dialogresize",switchDialogResize);
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});
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},
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oneditsave: function() {
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var rules = $("#node-input-rule-container").children();
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var ruleset;
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var node = this;
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node.rules= [];
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rules.each(function(i) {
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var rule = $(this);
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var type = rule.find("select option:selected").val();
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var r = {t:type};
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if (!(type === "true" || type === "false" || type === "null" || type === "nnull")) {
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if (type === "btwn") {
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r.v = rule.find(".node-input-rule-btwn-value").val();
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r.v2 = rule.find(".node-input-rule-btwn-value2").val();
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} else {
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r.v = rule.find(".node-input-rule-value").val();
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}
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}
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node.rules.push(r);
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});
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node.outputs = node.rules.length;
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}
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});
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</script>
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@ -0,0 +1,67 @@
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/**
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* Copyright 2013 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var RED = require("../../red/red");
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var operators = {
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'eq':function(a,b) { return a == b; },
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'neq':function(a,b) { return a != b; },
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'lt':function(a,b) { return a < b; },
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'lte':function(a,b) { return a <= b; },
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'gt':function(a,b) { return a > b; },
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'gte':function(a,b) { return a >= b; },
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'btwn':function(a,b,c) { return a >= b && a <= c; },
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'cont':function(a,b) { return (a+"").indexOf(b) != -1; },
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'regex': function(a,b) { return (a+"").match(new RegExp(b)); },
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'true': function(a) { return a === true; },
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'false': function(a) { return a === false; },
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'null': function(a) { return a === null; },
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'nnull': function(a) { return a !== null; }
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};
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function SwitchNode(n) {
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RED.nodes.createNode(this,n);
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this.rules = n.rules;
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this.property = n.property;
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this.ruleFuncs = [];
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for (var i=0;i<this.rules.length;i+=1) {
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}
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var node = this;
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this.on('input',function(msg) {
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var onward = [];
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for (var i=0;i<node.rules.length;i+=1) {
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var rule = node.rules[i];
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console.log(rule);
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if (operators[rule.t](msg[node.property],rule.v,rule.v2)) {
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onward.push(msg);
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} else {
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onward.push(null);
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}
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}
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this.send(onward);
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});
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}
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RED.nodes.registerType("switch",SwitchNode);
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