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TiddlyWiki5/archive/js/macros/view.js
2012-05-05 22:49:23 +01:00

106 lines
2.5 KiB
JavaScript

/*\
title: js/macros/view.js
\*/
(function(){
/*jslint node: true */
"use strict";
var Renderer = require("../Renderer.js").Renderer,
Dependencies = require("../Dependencies.js").Dependencies,
utils = require("../Utils.js");
exports.macro = {
name: "view",
dependentOnContextTiddler: true,
params: {
field: {byPos: 0, type: "text"},
format: {byPos: 1, type: "text"},
template: {byPos: 2, type: "text"}
},
execute: function() {
var tiddler = this.store.getTiddler(this.tiddlerTitle),
field = this.hasParameter("field") ? this.params.field : "title",
value,
content,
t,
contentClone = [],
parents = this.parents;
if(tiddler) {
value = tiddler[field];
} else {
switch(field) {
case "text":
value = "The tiddler '" + this.tiddlerTitle + "' does not exist";
break;
case "title":
value = this.tiddlerTitle;
break;
case "modified":
case "created":
value = new Date();
break;
default:
value = "Missing tiddler '" + this.tiddlerTitle + "'";
break;
}
}
switch(this.params.format) {
case "link":
if(value === undefined) {
return [];
} else {
var link = Renderer.MacroNode("link",
{to: value},
[Renderer.TextNode(value)],
this.store);
link.execute(parents,this.tiddlerTitle);
return [link];
}
break;
case "wikified":
if(tiddler && this.params.field === "text") {
if(parents.indexOf(tiddler.title) !== -1) {
content = [Renderer.ErrorNode("Tiddler recursion error in <<view>> macro")];
} else {
content = this.store.parseTiddler(tiddler.title).nodes;
}
parents = parents.slice(0);
parents.push(tiddler.title);
} else {
content = this.store.parseText("text/x-tiddlywiki",value).nodes;
}
for(t=0; t<content.length; t++) {
contentClone.push(content[t].clone());
}
for(t=0; t<contentClone.length; t++) {
contentClone[t].execute(parents,this.tiddlerTitle);
}
return contentClone;
case "date":
var template = this.params.template || "DD MMM YYYY";
if(value === undefined) {
return [];
} else {
return [Renderer.TextNode(utils.formatDateString(value,template))];
}
break;
default: // "text"
// Get the stringified version of the field value
if(field !== "text" && tiddler) {
value = tiddler.getFieldString(field);
}
if(value === undefined || value === null) {
return [];
} else {
return [Renderer.TextNode(value)];
}
}
return [];
}
};
})();