New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit

git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f

1 files changed, 291 insertions, 0 deletions

diff --git a/includes/js/dojox/dtl/tag/misc.js b/includes/js/dojox/dtl/tag/misc.js
new file mode 100644
index 0000000..31610d7
--- /dev/null
+++ b/includes/js/dojox/dtl/tag/misc.js
@@ -0,0 +1,291 @@
+if(!dojo._hasResource["dojox.dtl.tag.misc"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojox.dtl.tag.misc"] = true;
+dojo.provide("dojox.dtl.tag.misc");
+dojo.require("dojox.dtl._base");
+
+(function(){
+	var dd = dojox.dtl;
+	var ddtm = dd.tag.misc;
+
+	ddtm.DebugNode = dojo.extend(function(TextNode){
+		this._TextNode = TextNode;
+	},
+	{
+		render: function(context, buffer){
+			var keys = context.getKeys();
+			var debug = "";
+			for(var i = 0, key; key = keys[i]; i++){
+				console.debug("DEBUG", key, ":", context[key]);
+				debug += key + ": " + dojo.toJson(context[key]) + "\n\n";
+			}
+			return new this._TextNode(debug).render(context, buffer, this);
+		},
+		unrender: function(context, buffer){
+			return buffer;
+		},
+		clone: function(buffer){
+			return new this.constructor(this._TextNode);
+		},
+		toString: function(){ return "ddtm.DebugNode"; }
+	});
+
+	ddtm.FilterNode = dojo.extend(function(varnode, nodelist){
+		this._varnode = varnode;
+		this._nodelist = nodelist;
+	},
+	{
+		render: function(context, buffer){
+			// Doing this in HTML requires a different buffer with a fake root node
+			var output = this._nodelist.render(context, new dojox.string.Builder());
+			context.update({ "var": output.toString() });
+			var filtered = this._varnode.render(context, buffer);
+			context.pop();
+			return buffer;
+		},
+		unrender: function(context, buffer){
+			return buffer;
+		},
+		clone: function(buffer){
+			return new this.constructor(this._expression, this._nodelist.clone(buffer));
+		}
+	});
+
+	ddtm.FirstOfNode = dojo.extend(function(vars, TextNode){
+		this._vars = vars;
+		this.vars = dojo.map(vars, function(item){
+			return new dojox.dtl._Filter(item);
+		});
+		this.contents = new TextNode("");
+	},
+	{
+		render: function(context, buffer){
+			for(var i = 0, item; item = this.vars[i]; i++){
+				var resolved = item.resolve(context);
+				if(typeof resolved != "undefined"){
+					if(resolved === null){
+						resolved = "null";
+					}
+					this.contents.set(resolved);
+					return this.contents.render(context, buffer);
+				}
+			}
+			return this.contents.unrender(context, buffer);
+		},
+		unrender: function(context, buffer){
+			return this.contents.unrender(context, buffer);
+		},
+		clone: function(buffer){
+			return new this.constructor(this._vars, this.contents.constructor);
+		}
+	});
+
+	ddtm.SpacelessNode = dojo.extend(function(nodelist, TextNode){
+		this.nodelist = nodelist;
+		this.TextNode = TextNode;
+	},
+	{
+		render: function(context, buffer){
+			if(buffer.onAddNodeComplete){
+				// Unfortunately, we have to branch here
+				var watch = [
+					dojo.connect(buffer, "onAddNodeComplete", this, "_watch"),
+					dojo.connect(buffer, "onSetParent", this, "_watchParent")
+				];
+				buffer = this.nodelist.render(context, buffer);
+				dojo.disconnect(watch[0]);
+				dojo.disconnect(watch[1]);
+			}else{
+				if(!this.contents){
+					this.contents = new this.TextNode("");
+				}
+				var value = this.nodelist.dummyRender(context);
+				this.contents.set(value.replace(/>\s+</g, '><'));
+				buffer = this.contents.render(context, buffer);
+			}
+			return buffer;
+		},
+		unrender: function(context, buffer){
+			return this.nodelist.unrender(context, buffer);
+		},
+		clone: function(buffer){
+			return new this.constructor(this.nodelist.clone(buffer));
+		},
+		_isEmpty: function(node){
+			return (node.nodeType == 3 && !node.data.match(/[^\s\n]/));
+		},
+		_watch: function(node){
+			if(this._isEmpty(node)){
+				var remove = false;
+				if(node.parentNode.firstChild == node){
+					node.parentNode.removeChild(node);
+				}
+			}else{
+				var children = node.parentNode.childNodes;
+				if(node.nodeType == 1 && children.length > 2){
+					for(var i = 2, child; child = children[i]; i++){
+						if(children[i - 2].nodeType == 1 && this._isEmpty(children[i - 1])){
+							node.parentNode.removeChild(children[i - 1]);
+							return;
+						}
+					}
+				}
+			}
+		},
+		_watchParent: function(node){
+			var children = node.childNodes;
+			if(children.length){
+				while(node.childNodes.length){
+					var last = node.childNodes[node.childNodes.length - 1];
+					if(!this._isEmpty(last)){
+						return;
+					}
+					node.removeChild(last);
+				}
+			}
+		}
+	});
+
+	ddtm.TemplateTagNode = dojo.extend(function(tag, TextNode){
+		this.tag = tag;
+		this.contents = new TextNode("");
+	},
+	{
+		mapping: {
+			openblock: "{%",
+			closeblock: "%}",
+			openvariable: "{{",
+			closevariable: "}}",
+			openbrace: "{",
+			closebrace: "}",
+			opencomment: "{#",
+			closecomment: "#}"
+		},
+		render: function(context, buffer){
+			this.contents.set(this.mapping[this.tag]);
+			return this.contents.render(context, buffer);
+		},
+		unrender: function(context, buffer){
+			return this.contents.unrender(context, buffer);
+		},
+		clone: function(buffer){
+			return new this.constructor(this.tag, this.contents.constructor);
+		}
+	});
+
+	ddtm.WidthRatioNode = dojo.extend(function(current, max, width, TextNode){
+		this.current = new dd._Filter(current);
+		this.max = new dd._Filter(max);
+		this.width = width;
+		this.contents = new TextNode("");
+	},
+	{
+		render: function(context, buffer){
+			var current = +this.current.resolve(context);
+			var max = +this.max.resolve(context);
+			if(typeof current != "number" || typeof max != "number" || !max){
+				this.contents.set("");
+			}else{
+				this.contents.set("" + Math.round((current / max) * this.width));
+			}
+			return this.contents.render(context, buffer);
+		},
+		unrender: function(context, buffer){
+			return this.contents.unrender(context, buffer);
+		},
+		clone: function(buffer){
+			return new this.constructor(this.current.getExpression(), this.max.getExpression(), this.width, this.contents.constructor);
+		}
+	});
+
+	ddtm.WithNode = dojo.extend(function(target, alias, nodelist){
+		this.target = new dd._Filter(target);
+		this.alias = alias;
+		this.nodelist = nodelist;
+	},
+	{
+		render: function(context, buffer){
+			var target = this.target.resolve(context);
+			context.push();
+			context[this.alias] = target;
+			buffer = this.nodelist.render(context, buffer);
+			context.pop();
+			return buffer;
+		},
+		unrender: function(context, buffer){
+			return buffer;
+		},
+		clone: function(buffer){
+			return new this.constructor(this.target.getExpression(), this.alias, this.nodelist.clone(buffer));
+		}
+	});
+
+	dojo.mixin(ddtm, {
+		comment: function(parser, text){
+			// summary: Ignore everything between {% comment %} and {% endcomment %}
+			parser.skipPast("endcomment");
+			return dd._noOpNode;
+		},
+		debug: function(parser, text){
+			// summary: Output the current context, maybe add more stuff later.
+			return new ddtm.DebugNode(parser.getTextNodeConstructor());
+		},
+		filter: function(parser, text){
+			// summary: Filter the contents of the blog through variable filters.
+			var parts = text.split(" ", 2);
+			var varnode = new (parser.getVarNodeConstructor())("var|" + parts[1]);
+			var nodelist = parser.parse(["endfilter"]);
+			parser.next();
+			return new ddtm.FilterNode(varnode, nodelist);
+		},
+		firstof: function(parser, text){
+			var parts = dojox.dtl.text.pySplit(text).slice(1);
+			if(!parts.length){
+				throw new Error("'firstof' statement requires at least one argument");
+			}
+			return new ddtm.FirstOfNode(parts, parser.getTextNodeConstructor());
+		},
+		spaceless: function(parser, text){
+			var nodelist = parser.parse(["endspaceless"]);
+			parser.next();
+			return new ddtm.SpacelessNode(nodelist, parser.getTextNodeConstructor());
+		},
+		templatetag: function(parser, text){
+			var parts = dd.text.pySplit(text);
+			if(parts.length != 2){
+				throw new Error("'templatetag' statement takes one argument");
+			}
+			var tag = parts[1];
+			var mapping = ddtm.TemplateTagNode.prototype.mapping;
+			if(!mapping[tag]){
+				var keys = [];
+				for(var key in mapping){
+					keys.push(key);
+				}
+				throw new Error("Invalid templatetag argument: '" + tag + "'. Must be one of: " + keys.join(", "));
+			}
+			return new ddtm.TemplateTagNode(tag, parser.getTextNodeConstructor());
+		},
+		widthratio: function(parser, text){
+			var parts = dd.text.pySplit(text);
+			if(parts.length != 4){
+				throw new Error("widthratio takes three arguments");
+			}
+			var width = +parts[3];
+			if(typeof width != "number"){
+				throw new Error("widthratio final argument must be an integer");
+			}
+			return new ddtm.WidthRatioNode(parts[1], parts[2], width, parser.getTextNodeConstructor());
+		},
+		with_: function(parser, text){
+			var parts = dd.text.pySplit(text);
+			if(parts.length != 4 || parts[2] != "as"){
+				throw new Error("do_width expected format as 'with value as name'");
+			}
+			var nodelist = parser.parse(["endwith"]);
+			parser.next();
+			return new ddtm.WithNode(parts[1], parts[3], nodelist);
+		}
+	});
+})();
+
+}