wp/nwyj/.svn/pristine/61/616502bfbaa9a755b36cd6733af9301be253f6fb.svn-base

if (!dojo._hasResource["dojox.dtl.tag.logic"]) { // _hasResource checks added
													// by build. Do not use
													// _hasResource directly in
													// your code.
	dojo._hasResource["dojox.dtl.tag.logic"] = true;
	dojo.provide("dojox.dtl.tag.logic");

	dojo.require("dojox.dtl._base");

	dojox.dtl.tag.logic.IfNode = function(bools, trues, falses, type) {
		this.bools = bools;
		this.trues = trues;
		this.falses = falses;
		this.type = type;
	}
	dojo.extend(dojox.dtl.tag.logic.IfNode, {
				render : function(context, buffer) {
					if (this.type == "or") {
						for (var i = 0, bool; bool = this.bools[i]; i++) {
							var ifnot = bool[0];
							var filter = bool[1];
							var value = filter.resolve(context);
							if ((value && !ifnot) || (ifnot && !value)) {
								if (this.falses) {
									buffer = this.falses.unrender(context,
											buffer);
								}
								return this.trues.render(context, buffer, this);
							}
							buffer = this.trues.unrender(context, buffer);
							if (this.falses)
								return this.falses
										.render(context, buffer, this);
						}
					} else {
						for (var i = 0, bool; bool = this.bools[i]; i++) {
							var ifnot = bool[0];
							var filter = bool[1];
							var value = filter.resolve(context);
							if (!((value && !ifnot) || (ifnot && !value))) {
								if (this.trues) {
									buffer = this.trues.unrender(context,
											buffer);
								}
								return this.falses
										.render(context, buffer, this);
							}
							buffer = this.falses.unrender(context, buffer);
							if (this.falses)
								return this.trues.render(context, buffer, this);
						}
					}
					return buffer;
				},
				unrender : function(context, buffer) {
					if (this.trues)
						buffer = this.trues.unrender(context, buffer);
					if (this.falses)
						buffer = this.falses.unrender(context, buffer);
					return buffer;
				},
				clone : function(buffer) {
					var trues = this.trues;
					var falses = this.falses;
					if (trues) {
						trues = trues.clone(buffer);
					}
					if (falses) {
						falses = falses.clone(buffer);
					}
					return new this.constructor(this.bools, trues, falses,
							this.type);
				},
				toString : function() {
					return "dojox.dtl.tag.logic.IfNode";
				}
			});

	dojox.dtl.tag.logic.ForNode = function(assign, loop, reversed, nodelist) {
		this.assign = assign;
		this.loop = loop;
		this.reversed = reversed;
		this.nodelist = nodelist;
		this.pool = [];
	}
	dojo.extend(dojox.dtl.tag.logic.ForNode, {
				render : function(context, buffer) {
					var parentloop = {};
					if (context.forloop) {
						parentloop = context.forloop;
					}
					var items = dojox.dtl.resolveVariable(this.loop, context);
					context.push();
					for (var i = items.length; i < this.pool.length; i++) {
						this.pool[i].unrender(context, buffer);
					}
					if (this.reversed) {
						items = items.reversed();
					}
					var j = 0;
					for (var i in items) {
						var item = items[i];
						context.forloop = {
							key : i,
							counter0 : j,
							counter : j + 1,
							revcounter0 : items.length - j - 1,
							revcounter : items.length - j,
							first : j == 0,
							parentloop : parentloop
						};
						context[this.assign] = item;
						if (j + 1 > this.pool.length) {
							this.pool.push(this.nodelist.clone(buffer));
						}
						buffer = this.pool[j].render(context, buffer, this);
						++j;
					}
					context.pop();
					return buffer;
				},
				unrender : function(context, buffer) {
					for (var i = 0, pool; pool = this.pool[i]; i++) {
						buffer = pool.unrender(context, buffer);
					}
					return buffer;
				},
				clone : function(buffer) {
					return new this.constructor(this.assign, this.loop,
							this.reversed, this.nodelist.clone(buffer));
				},
				toString : function() {
					return "dojox.dtl.tag.logic.ForNode";
				}
			});

	dojox.dtl.tag.logic.if_ = function(parser, text) {
		var parts = text.split(/\s+/g);
		var type;
		var bools = [];
		parts.shift();
		text = parts.join(" ");
		parts = text.split(" and ");
		if (parts.length == 1) {
			type = "or";
			parts = text.split(" or ");
		} else {
			type = "and";
			for (var i = 0; i < parts.length; i++) {
				if (parts[i] == "or") {
					throw new Error("'if' tags can't mix 'and' and 'or'");
				}
			}
		}
		for (var i = 0, part; part = parts[i]; i++) {
			var not = false;
			if (part.indexOf("not ") == 0) {
				part = part.substring(4);
				not = true;
			}
			bools.push([not, new dojox.dtl.Filter(part)]);
		}
		var trues = parser.parse(["else", "endif"]);
		var falses = false;
		var token = parser.next();
		if (token.text == "else") {
			var falses = parser.parse(["endif"]);
			parser.next();
		}
		return new dojox.dtl.tag.logic.IfNode(bools, trues, falses, type);
	}

	dojox.dtl.tag.logic.for_ = function(parser, text) {
		var parts = text.split(/\s+/g);
		var reversed = parts.length == 5;
		var nodelist = parser.parse(["endfor"]);
		parser.next();
		return new dojox.dtl.tag.logic.ForNode(parts[1], parts[3], reversed,
				nodelist);
	}

}