node-red source code

liudong

2023-05-29 340f156319b863525e50e900c58e59b86ecb3d5e

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module.exports = function(RED) {
    var ui = require('../ui')(RED);
 
    function TextNode(config) {
        RED.nodes.createNode(this, config);
        var node = this;
 
        var group = RED.nodes.getNode(config.group);
        if (!group) { return; }
        var tab = RED.nodes.getNode(group.config.tab);
        if (!tab) { return; }
 
        var layout = config.layout||"row-spread";
        var angLayout = "row";
        var angLayoutAlign = "space-between center";
        if (layout === "row-spread") { angLayout = 'row'; angLayoutAlign = 'space-between center'}
        else if (layout === "row-left") { angLayout = 'row'; angLayoutAlign = 'start center'}
        else if (layout === "row-center") { angLayout = 'row'; angLayoutAlign = 'center center'}
        else if (layout === "row-right") { angLayout = 'row'; angLayoutAlign = 'end center'}
        else if (layout === "col-center") { angLayout = 'column'; angLayoutAlign = 'center center'}
        var done = ui.add({
            emitOnlyNewValues: false,
            node: node,
            tab: tab,
            group: group,
            control: {
                type: 'text',
                label: config.label,
                order: config.order,
                format: config.format,
                width: config.width || group.config.width || 6,
                height: config.height || 1,
                layout: angLayout,
                layoutAlign: angLayoutAlign,
                className: config.className || '',
            },
            convert: function(value,oldValue,msg) {
                if (value !== undefined && value !== null) {
                    if (Buffer.isBuffer(value)) {
                        value = value.toString('binary');
                    }
                    else {
                        value = value.toString();
                    }
                }
                else {
                    msg.payload = oldValue;
                }
                return value;
            }
        });
        node.on("close", done);
    }
    RED.nodes.registerType("ui_text", TextNode);
};