453 lines
15 KiB
JavaScript
453 lines
15 KiB
JavaScript
/*
|
|
Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
|
|
Available via Academic Free License >= 2.1 OR the modified BSD license.
|
|
see: http://dojotoolkit.org/license for details
|
|
*/
|
|
|
|
|
|
if(!dojo._hasResource["dojo.parser"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
|
|
dojo._hasResource["dojo.parser"] = true;
|
|
dojo.provide("dojo.parser");
|
|
dojo.require("dojo.date.stamp");
|
|
|
|
new Date("X"); // workaround for #11279, new Date("") == NaN
|
|
|
|
dojo.parser = new function(){
|
|
// summary: The Dom/Widget parsing package
|
|
|
|
var d = dojo;
|
|
this._attrName = d._scopeName + "Type";
|
|
this._query = "[" + this._attrName + "]";
|
|
|
|
function val2type(/*Object*/ value){
|
|
// summary:
|
|
// Returns name of type of given value.
|
|
|
|
if(d.isString(value)){ return "string"; }
|
|
if(typeof value == "number"){ return "number"; }
|
|
if(typeof value == "boolean"){ return "boolean"; }
|
|
if(d.isFunction(value)){ return "function"; }
|
|
if(d.isArray(value)){ return "array"; } // typeof [] == "object"
|
|
if(value instanceof Date) { return "date"; } // assume timestamp
|
|
if(value instanceof d._Url){ return "url"; }
|
|
return "object";
|
|
}
|
|
|
|
function str2obj(/*String*/ value, /*String*/ type){
|
|
// summary:
|
|
// Convert given string value to given type
|
|
switch(type){
|
|
case "string":
|
|
return value;
|
|
case "number":
|
|
return value.length ? Number(value) : NaN;
|
|
case "boolean":
|
|
// for checked/disabled value might be "" or "checked". interpret as true.
|
|
return typeof value == "boolean" ? value : !(value.toLowerCase()=="false");
|
|
case "function":
|
|
if(d.isFunction(value)){
|
|
// IE gives us a function, even when we say something like onClick="foo"
|
|
// (in which case it gives us an invalid function "function(){ foo }").
|
|
// Therefore, convert to string
|
|
value=value.toString();
|
|
value=d.trim(value.substring(value.indexOf('{')+1, value.length-1));
|
|
}
|
|
try{
|
|
if(value === "" || value.search(/[^\w\.]+/i) != -1){
|
|
// The user has specified some text for a function like "return x+5"
|
|
return new Function(value);
|
|
}else{
|
|
// The user has specified the name of a function like "myOnClick"
|
|
// or a single word function "return"
|
|
return d.getObject(value, false) || new Function(value);
|
|
}
|
|
}catch(e){ return new Function(); }
|
|
case "array":
|
|
return value ? value.split(/\s*,\s*/) : [];
|
|
case "date":
|
|
switch(value){
|
|
case "": return new Date(""); // the NaN of dates
|
|
case "now": return new Date(); // current date
|
|
default: return d.date.stamp.fromISOString(value);
|
|
}
|
|
case "url":
|
|
return d.baseUrl + value;
|
|
default:
|
|
return d.fromJson(value);
|
|
}
|
|
}
|
|
|
|
var instanceClasses = {
|
|
// map from fully qualified name (like "dijit.Button") to structure like
|
|
// { cls: dijit.Button, params: {label: "string", disabled: "boolean"} }
|
|
};
|
|
|
|
// Widgets like BorderContainer add properties to _Widget via dojo.extend().
|
|
// If BorderContainer is loaded after _Widget's parameter list has been cached,
|
|
// we need to refresh that parameter list (for _Widget and all widgets that extend _Widget).
|
|
dojo.connect(dojo, "extend", function(){
|
|
instanceClasses = {};
|
|
});
|
|
|
|
function getClassInfo(/*String*/ className){
|
|
// className:
|
|
// fully qualified name (like "dijit.form.Button")
|
|
// returns:
|
|
// structure like
|
|
// {
|
|
// cls: dijit.Button,
|
|
// params: { label: "string", disabled: "boolean"}
|
|
// }
|
|
|
|
if(!instanceClasses[className]){
|
|
// get pointer to widget class
|
|
var cls = d.getObject(className);
|
|
if(!cls){ return null; } // class not defined [yet]
|
|
|
|
var proto = cls.prototype;
|
|
|
|
// get table of parameter names & types
|
|
var params = {}, dummyClass = {};
|
|
for(var name in proto){
|
|
if(name.charAt(0)=="_"){ continue; } // skip internal properties
|
|
if(name in dummyClass){ continue; } // skip "constructor" and "toString"
|
|
var defVal = proto[name];
|
|
params[name]=val2type(defVal);
|
|
}
|
|
|
|
instanceClasses[className] = { cls: cls, params: params };
|
|
}
|
|
return instanceClasses[className];
|
|
}
|
|
|
|
this._functionFromScript = function(script){
|
|
var preamble = "";
|
|
var suffix = "";
|
|
var argsStr = script.getAttribute("args");
|
|
if(argsStr){
|
|
d.forEach(argsStr.split(/\s*,\s*/), function(part, idx){
|
|
preamble += "var "+part+" = arguments["+idx+"]; ";
|
|
});
|
|
}
|
|
var withStr = script.getAttribute("with");
|
|
if(withStr && withStr.length){
|
|
d.forEach(withStr.split(/\s*,\s*/), function(part){
|
|
preamble += "with("+part+"){";
|
|
suffix += "}";
|
|
});
|
|
}
|
|
return new Function(preamble+script.innerHTML+suffix);
|
|
}
|
|
|
|
this.instantiate = function(/* Array */nodes, /* Object? */mixin, /* Object? */args){
|
|
// summary:
|
|
// Takes array of nodes, and turns them into class instances and
|
|
// potentially calls a startup method to allow them to connect with
|
|
// any children.
|
|
// nodes: Array
|
|
// Array of nodes or objects like
|
|
// | {
|
|
// | type: "dijit.form.Button",
|
|
// | node: DOMNode,
|
|
// | scripts: [ ... ], // array of <script type="dojo/..."> children of node
|
|
// | inherited: { ... } // settings inherited from ancestors like dir, theme, etc.
|
|
// | }
|
|
// mixin: Object?
|
|
// An object that will be mixed in with each node in the array.
|
|
// Values in the mixin will override values in the node, if they
|
|
// exist.
|
|
// args: Object?
|
|
// An object used to hold kwArgs for instantiation.
|
|
// Supports 'noStart' and inherited.
|
|
var thelist = [], dp = dojo.parser;
|
|
mixin = mixin||{};
|
|
args = args||{};
|
|
|
|
d.forEach(nodes, function(obj){
|
|
if(!obj){ return; }
|
|
|
|
// Get pointers to DOMNode, dojoType string, and clsInfo (metadata about the dojoType), etc.s
|
|
var node, type, clsInfo, clazz, scripts;
|
|
if(obj.node){
|
|
// new format of nodes[] array, object w/lots of properties pre-computed for me
|
|
node = obj.node;
|
|
type = obj.type;
|
|
clsInfo = obj.clsInfo || (type && getClassInfo(type));
|
|
clazz = clsInfo && clsInfo.cls;
|
|
scripts = obj.scripts;
|
|
}else{
|
|
// old (backwards compatible) format of nodes[] array, simple array of DOMNodes
|
|
node = obj;
|
|
type = dp._attrName in mixin ? mixin[dp._attrName] : node.getAttribute(dp._attrName);
|
|
clsInfo = type && getClassInfo(type);
|
|
clazz = clsInfo && clsInfo.cls;
|
|
scripts = (clazz && (clazz._noScript || clazz.prototype._noScript) ? [] :
|
|
d.query("> script[type^='dojo/']", node));
|
|
}
|
|
if(!clsInfo){
|
|
throw new Error("Could not load class '" + type);
|
|
}
|
|
|
|
// Setup hash to hold parameter settings for this widget. Start with the parameter
|
|
// settings inherited from ancestors ("dir" and "lang").
|
|
// Inherited setting may later be overridden by explicit settings on node itself.
|
|
var params = {},
|
|
attributes = node.attributes;
|
|
if(args.defaults){
|
|
// settings for the document itself (or whatever subtree is being parsed)
|
|
dojo.mixin(params, args.defaults);
|
|
}
|
|
if(obj.inherited){
|
|
// settings from dir=rtl or lang=... on a node above this node
|
|
dojo.mixin(params, obj.inherited);
|
|
}
|
|
|
|
// read parameters (ie, attributes) specified on DOMNode
|
|
// clsInfo.params lists expected params like {"checked": "boolean", "n": "number"}
|
|
for(var name in clsInfo.params){
|
|
var item = name in mixin?{value:mixin[name],specified:true}:attributes.getNamedItem(name);
|
|
if(!item || (!item.specified && (!dojo.isIE || name.toLowerCase()!="value"))){ continue; }
|
|
var value = item.value;
|
|
// Deal with IE quirks for 'class' and 'style'
|
|
switch(name){
|
|
case "class":
|
|
value = "className" in mixin?mixin.className:node.className;
|
|
break;
|
|
case "style":
|
|
value = "style" in mixin?mixin.style:(node.style && node.style.cssText); // FIXME: Opera?
|
|
}
|
|
var _type = clsInfo.params[name];
|
|
if(typeof value == "string"){
|
|
params[name] = str2obj(value, _type);
|
|
}else{
|
|
params[name] = value;
|
|
}
|
|
}
|
|
|
|
// Process <script type="dojo/*"> script tags
|
|
// <script type="dojo/method" event="foo"> tags are added to params, and passed to
|
|
// the widget on instantiation.
|
|
// <script type="dojo/method"> tags (with no event) are executed after instantiation
|
|
// <script type="dojo/connect" event="foo"> tags are dojo.connected after instantiation
|
|
// note: dojo/* script tags cannot exist in self closing widgets, like <input />
|
|
var connects = [], // functions to connect after instantiation
|
|
calls = []; // functions to call after instantiation
|
|
|
|
d.forEach(scripts, function(script){
|
|
node.removeChild(script);
|
|
var event = script.getAttribute("event"),
|
|
type = script.getAttribute("type"),
|
|
nf = d.parser._functionFromScript(script);
|
|
if(event){
|
|
if(type == "dojo/connect"){
|
|
connects.push({event: event, func: nf});
|
|
}else{
|
|
params[event] = nf;
|
|
}
|
|
}else{
|
|
calls.push(nf);
|
|
}
|
|
});
|
|
|
|
var markupFactory = clazz.markupFactory || clazz.prototype && clazz.prototype.markupFactory;
|
|
// create the instance
|
|
var instance = markupFactory ? markupFactory(params, node, clazz) : new clazz(params, node);
|
|
thelist.push(instance);
|
|
|
|
// map it to the JS namespace if that makes sense
|
|
var jsname = node.getAttribute("jsId");
|
|
if(jsname){
|
|
d.setObject(jsname, instance);
|
|
}
|
|
|
|
// process connections and startup functions
|
|
d.forEach(connects, function(connect){
|
|
d.connect(instance, connect.event, null, connect.func);
|
|
});
|
|
d.forEach(calls, function(func){
|
|
func.call(instance);
|
|
});
|
|
});
|
|
|
|
// Call startup on each top level instance if it makes sense (as for
|
|
// widgets). Parent widgets will recursively call startup on their
|
|
// (non-top level) children
|
|
if(!mixin._started){
|
|
// TODO: for 2.0, when old instantiate() API is desupported, store parent-child
|
|
// relationships in the nodes[] array so that no getParent() call is needed.
|
|
// Note that will require a parse() call from ContentPane setting a param that the
|
|
// ContentPane is the parent widget (so that the parse doesn't call startup() on the
|
|
// ContentPane's children)
|
|
d.forEach(thelist, function(instance){
|
|
if( !args.noStart && instance &&
|
|
instance.startup &&
|
|
!instance._started &&
|
|
(!instance.getParent || !instance.getParent())
|
|
){
|
|
instance.startup();
|
|
}
|
|
});
|
|
}
|
|
return thelist;
|
|
};
|
|
|
|
this.parse = function(/*DomNode?*/ rootNode, /* Object? */ args){
|
|
// summary:
|
|
// Scan the DOM for class instances, and instantiate them.
|
|
//
|
|
// description:
|
|
// Search specified node (or root node) recursively for class instances,
|
|
// and instantiate them Searches for
|
|
// dojoType="qualified.class.name"
|
|
//
|
|
// rootNode: DomNode?
|
|
// A default starting root node from which to start the parsing. Can be
|
|
// omitted, defaulting to the entire document. If omitted, the `args`
|
|
// object can be passed in this place. If the `args` object has a
|
|
// `rootNode` member, that is used.
|
|
//
|
|
// args:
|
|
// a kwArgs object passed along to instantiate()
|
|
//
|
|
// * noStart: Boolean?
|
|
// when set will prevent the parser from calling .startup()
|
|
// when locating the nodes.
|
|
// * rootNode: DomNode?
|
|
// identical to the function's `rootNode` argument, though
|
|
// allowed to be passed in via this `args object.
|
|
// * inherited: Object
|
|
// Hash possibly containing dir and lang settings to be applied to
|
|
// parsed widgets, unless there's another setting on a sub-node that overrides
|
|
//
|
|
//
|
|
// example:
|
|
// Parse all widgets on a page:
|
|
// | dojo.parser.parse();
|
|
//
|
|
// example:
|
|
// Parse all classes within the node with id="foo"
|
|
// | dojo.parser.parse(dojo.byId(foo));
|
|
//
|
|
// example:
|
|
// Parse all classes in a page, but do not call .startup() on any
|
|
// child
|
|
// | dojo.parser.parse({ noStart: true })
|
|
//
|
|
// example:
|
|
// Parse all classes in a node, but do not call .startup()
|
|
// | dojo.parser.parse(someNode, { noStart:true });
|
|
// | // or
|
|
// | dojo.parser.parse({ noStart:true, rootNode: someNode });
|
|
|
|
// determine the root node based on the passed arguments.
|
|
var root;
|
|
if(!args && rootNode && rootNode.rootNode){
|
|
args = rootNode;
|
|
root = args.rootNode;
|
|
}else{
|
|
root = rootNode;
|
|
}
|
|
|
|
var attrName = this._attrName;
|
|
function scan(parent, list){
|
|
// summary:
|
|
// Parent is an Object representing a DOMNode, with or without a dojoType specified.
|
|
// Scan parent's children looking for nodes with dojoType specified, storing in list[].
|
|
// If parent has a dojoType, also collects <script type=dojo/*> children and stores in parent.scripts[].
|
|
// parent: Object
|
|
// Object representing the parent node, like
|
|
// | {
|
|
// | node: DomNode, // scan children of this node
|
|
// | inherited: {dir: "rtl"}, // dir/lang setting inherited from above node
|
|
// |
|
|
// | // attributes only set if node has dojoType specified
|
|
// | scripts: [], // empty array, put <script type=dojo/*> in here
|
|
// | clsInfo: { cls: dijit.form.Button, ...}
|
|
// | }
|
|
// list: DomNode[]
|
|
// Output array of objects (same format as parent) representing nodes to be turned into widgets
|
|
|
|
// Effective dir and lang settings on parent node, either set directly or inherited from grandparent
|
|
var inherited = dojo.clone(parent.inherited);
|
|
dojo.forEach(["dir", "lang"], function(name){
|
|
var val = parent.node.getAttribute(name);
|
|
if(val){
|
|
inherited[name] = val;
|
|
}
|
|
});
|
|
|
|
// if parent is a widget, then search for <script type=dojo/*> tags and put them in scripts[].
|
|
var scripts = parent.scripts;
|
|
|
|
// unless parent is a widget with the stopParser flag set, continue search for dojoType, recursively
|
|
var recurse = !parent.clsInfo || !parent.clsInfo.cls.prototype.stopParser;
|
|
|
|
// scan parent's children looking for dojoType and <script type=dojo/*>
|
|
for(var child = parent.node.firstChild; child; child = child.nextSibling){
|
|
if(child.nodeType == 1){
|
|
var type = recurse && child.getAttribute(attrName);
|
|
if(type){
|
|
// if dojoType specified, add to output array of nodes to instantiate
|
|
var params = {
|
|
"type": type,
|
|
clsInfo: getClassInfo(type), // note: won't find classes declared via dojo.Declaration
|
|
node: child,
|
|
scripts: [], // <script> nodes that are parent's children
|
|
inherited: inherited // dir & lang attributes inherited from parent
|
|
};
|
|
list.push(params);
|
|
|
|
// Recurse, collecting <script type="dojo/..."> children, and also looking for
|
|
// descendant nodes with dojoType specified (unless the widget has the stopParser flag),
|
|
scan(params, list);
|
|
}else if(scripts && child.nodeName.toLowerCase() == "script"){
|
|
// if <script type="dojo/...">, save in scripts[]
|
|
type = child.getAttribute("type");
|
|
if (type && /^dojo\//i.test(type)) {
|
|
scripts.push(child);
|
|
}
|
|
}else if(recurse){
|
|
// Recurse, looking for grandchild nodes with dojoType specified
|
|
scan({
|
|
node: child,
|
|
inherited: inherited
|
|
}, list);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Make list of all nodes on page w/dojoType specified
|
|
var list = [];
|
|
scan({
|
|
node: root ? dojo.byId(root) : dojo.body(),
|
|
inherited: (args && args.inherited) || {
|
|
dir: dojo._isBodyLtr() ? "ltr" : "rtl"
|
|
}
|
|
}, list);
|
|
|
|
// go build the object instances
|
|
return this.instantiate(list, null, args); // Array
|
|
};
|
|
}();
|
|
|
|
//Register the parser callback. It should be the first callback
|
|
//after the a11y test.
|
|
|
|
(function(){
|
|
var parseRunner = function(){
|
|
if(dojo.config.parseOnLoad){
|
|
dojo.parser.parse();
|
|
}
|
|
};
|
|
|
|
// FIXME: need to clobber cross-dependency!!
|
|
if(dojo.exists("dijit.wai.onload") && (dijit.wai.onload === dojo._loaders[0])){
|
|
dojo._loaders.splice(1, 0, parseRunner);
|
|
}else{
|
|
dojo._loaders.unshift(parseRunner);
|
|
}
|
|
})();
|
|
|
|
}
|