node-red/nodes/core/core/90-comment.html

<!--
  Copyright 2013, 2015 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="comment">
    <div class="form-row">
        <label for="node-input-name"><i class="fa fa-comment"></i> Title</label>
        <input type="text" id="node-input-name" placeholder="Comment">
    </div>
    <div class="form-row" style="margin-bottom: 0px;">
        <label for="node-input-info" style="width: 100% !important;"><i class="fa fa-comments"></i> Body - will be rendered in info tab.</label>
        <input type="hidden" id="node-input-info" autofocus="autofocus">
    </div>
    <div class="form-row node-text-editor-row">
        <div style="height: 250px;" class="node-text-editor" id="node-input-info-editor" ></div>
    </div>
    <div class="form-tips">Tip: The text here can be styled as <i><a href="https://help.github.com/articles/markdown-basics/" target="_new">Github flavoured Markdown</a></i></div>
</script>

<script type="text/x-red" data-help-name="comment">
    <p>A node you can use to add comments to your flows.</p>
</script>

<script type="text/javascript">
    RED.nodes.registerType('comment',{
        category: 'function',
        color:"#ffffff",
        defaults: {
            name: {value:""},
            info: {value:""}
        },
        inputs:0,
        outputs:0,
        icon: "comment.png",
        label: function() {
            return this.name||"";
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        },
        info: function() {
            var t = this.name || "Comment node";
            var b = this.info || "Use this node to add simple documentation.\n\nAnything you add will be rendered in this info panel.\n\nYou may use Markdown syntax to **enhance** the *presentation*.";
            return "### "+t+"\n"+b;
        },
        oneditprepare: function() {
            var that = this;
            $( "#node-input-outputs" ).spinner({
                min:1
            });
            function functionDialogResize() {
                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");
                that.editor.resize();
            };
            $( "#dialog" ).on("dialogresize", functionDialogResize);
            $( "#dialog" ).one("dialogopen", function(ev) {
                var size = $( "#dialog" ).dialog('option','sizeCache-function');
                if (size) {
                    $("#dialog").dialog('option','width',size.width);
                    $("#dialog").dialog('option','height',size.height);
                    functionDialogResize();
                }
            });
            $( "#dialog" ).one("dialogclose", function(ev,ui) {
                var height = $( "#dialog" ).dialog('option','height');
                $( "#dialog" ).off("dialogresize",functionDialogResize);
            });
            this.editor = RED.editor.createEditor({
                id: 'node-input-info-editor',
                mode: 'ace/mode/markdown'
            });
            this.editor.setValue($("#node-input-info").val(),-1);
            this.editor.focus();
        },
        oneditsave: function() {
            $("#node-input-info").val(this.editor.getValue());
            delete this.editor;
        }
    });
</script>