node-red/nodes/core/core/80-template.html

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  Copyright 2013, 2016 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.
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<script type="text/x-red" data-template-name="template">
    <div class="form-row">
        <label for="node-input-name"><i class="fa fa-tag"></i> <span data-i18n="common.label.name"></span></label>
        <input type="text" id="node-input-name" data-i18n="[placeholder]common.label.name">
    </div>
    <div class="form-row">
        <label for="node-input-field"><i class="fa fa-edit"></i> <span data-i18n="template.label.property"></span></label>
        <input type="text" id="node-input-field" placeholder="payload" style="width:250px;">
        <input type="hidden" id="node-input-fieldType">
    </div>
    <div class="form-row" style="position: relative; margin-bottom: 0px;">
        <label for="node-input-template"><i class="fa fa-file-code-o"></i> <span data-i18n="template.label.template"></span></label>
        <input type="hidden" id="node-input-template" autofocus="autofocus">
        <div style="position: absolute; right:0;display:inline-block; text-align: right; font-size: 0.8em;">
            <span data-i18n="template.label.format"></span>:
            <select id="node-input-format" style="width:110px; font-size: 10px !important;  height: 24px; padding:0;">
                <option value="handlebars">mustache</option>
                <option value="html">HTML</option>
                <option value="json">JSON</option>
                <option value="markdown">Markdown</option>
                <option value="text">none</option>
            </select>
        </div>
    </div>
    <div class="form-row node-text-editor-row">
        <div style="height: 250px;" class="node-text-editor" id="node-input-template-editor" ></div>
    </div>
    <div class="form-row">
        <label for="node-input-syntax"><i class="fa fa-code"></i> <span data-i18n="template.label.syntax"></span></label>
        <select id="node-input-syntax" style="width:180px;">
            <option value="mustache" data-i18n="template.label.mustache"></option>
            <option value="plain" data-i18n="template.label.plain"></option>
        </select>
    </div>
</script>

<script type="text/x-red" data-help-name="template">
    <p>Sets a property based on the provided template.</p>
    <p>By default this uses the <i><a href="http://mustache.github.io/mustache.5.html" target="_new">mustache</a></i>
    format, but this can be switched off if required.</p>
    <p>For example, when a template of:
    <pre>Hello {{name}}. Today is {{date}}</pre>
    <p>receives a message containing:
    <pre>{
  name: "Fred",
  date: "Monday"
  payload: ...
}</pre>
    <p>The resulting property will be:
    <pre>Hello Fred. Today is Monday</pre>
    <p>By default, mustache will escape any HTML entities in the values it substitutes.
       To prevent this, use <code>{{{triple}}}</code> braces.
</script>

<script type="text/javascript">
    RED.nodes.registerType('template',{
        color:"rgb(243, 181, 103)",
        category: 'function',
        defaults: {
            name: {value:""},
            field: {value:"payload"},
            fieldType: {value:"msg"},
            format: {value:"handlebars"},
            syntax: {value:"mustache"},
            template: {value:"This is the payload: {{payload}} !"},
        },
        inputs:1,
        outputs:1,
        icon: "template.png",
        label: function() {
            return this.name;
        },
        oneditprepare: function() {
            var that = this;
            if (!this.fieldType) {
                this.fieldType = 'msg';
            }
            if (!this.syntax) {
                this.syntax = 'mustache';
                $("#node-input-syntax").val(this.syntax);
            }
            $("#node-input-field").typedInput({
                default: 'msg',
                types: ['msg','flow','global'],
                typeField: $("#node-input-fieldType")
            });

            this.editor = RED.editor.createEditor({
                id: 'node-input-template-editor',
                mode: 'ace/mode/html',
                value: $("#node-input-template").val()
            });
            RED.library.create({
                url:"functions", // where to get the data from
                type:"function", // the type of object the library is for
                editor:that.editor, // the field name the main text body goes to
                fields:['name','outputs']
            });
            this.editor.focus();

            $("#node-input-format").change(function() {
                var mod = "ace/mode/"+$("#node-input-format").val();
                that.editor.getSession().setMode({
                   path: mod,
                   v: Date.now()
                })
            });
        },
        oneditsave: function() {
            $("#node-input-template").val(this.editor.getValue())
            delete this.editor;
        },
        oneditresize: function(size) {
            var rows = $("#dialog-form>div:not(.node-text-editor-row)");
            var height = $("#dialog-form").height();
            for (var i=0;i<rows.size();i++) {
                height -= $(rows[i]).outerHeight(true);
            }
            var editorRow = $("#dialog-form>div.node-text-editor-row");
            height -= (parseInt(editorRow.css("marginTop"))+parseInt(editorRow.css("marginBottom")));
            $(".node-text-editor").css("height",height+"px");
            this.editor.resize();
        }
    });
</script>