TiddlyWiki5/js/macros/view.js

/*\
title: js/macros/view.js

\*/
(function(){

/*jslint node: true */
"use strict";

var utils = require("../Utils.js");

exports.macro = {
	name: "view",
	types: ["text/html","text/plain"],
	params: {
		field: {byPos: 0, type: "text", optional: false},
		format: {byPos: 1, type: "text", optional: true},
		template: {byPos: 2, type: "text", optional: true}
	},
	handler: function(type,tiddler,store,params) {
		var v = tiddler.fields[params.field],
			encoder = type === "text/html" ? utils.htmlEncode : function(x) {return x;};
		if(v) {
			switch(params.format) {
				case "link":
					return store.renderMacro("link",type,tiddler,{target: v},encoder(v));
				case "wikified":
					return store.renderTiddler(type,tiddler.fields.title);
				case "date":
					var template = params.template || "DD MMM YYYY";
					return encoder(utils.formatDateString(v,template));
				default: // "text"
					return encoder(v);
			}
		}
		return "";
	}
};

})();