forked from jeresig/env-js
/
env.js
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env.js
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/*
* Pure JavaScript Browser Environment
* By John Resig <http://ejohn.org/>
* Copyright 2008 John Resig, under the MIT License
*/
try {
// this goes into the global namespace, but less likely to collide with
// client JS code than methods in Rhino shell (load, print, etc.)
this.__proto__._$envjs$makeObjectIntoWindow$_ = function($w, $env,
$parentWindow,
$initTop){
// The Window Object
var __this__ = $w;
$w.__defineGetter__('window', function(){
return __this__;
});
/*
* window.js
* - this file will be wrapped in a closure providing the window object as $w
*/
// a logger or empty function available to all modules.
var $log = $env.log,
$debug = $env.debug,
$info = $env.info,
$warn = $env.warn,
$error = $env.error;
//The version of this application
var $version = "0.1";
//This should be hooked to git or svn or whatever
var $revision = "0.0.0.0";
//These descriptions of window properties are taken loosely David Flanagan's
//'JavaScript - The Definitive Guide' (O'Reilly)
/**> $cookies - see cookie.js <*/
// read only boolean specifies whether the window has been closed
var $closed = false;
// a read/write string that specifies the default message that appears in the status line
var $defaultStatus = "Done";
// a read-only reference to the Document object belonging to this window
/**> $document - See document.js <*/
//IE only, refers to the most recent event object - this maybe be removed after review
var $event = null;
//A read-only array of window objects
//var $frames = []; // TODO: since window.frames can be accessed like a
// hash, will need an object to really implement
// a read-only reference to the History object
/**> $history - see location.js <**/
// read-only properties that specify the height and width, in pixels
var $innerHeight = 600, $innerWidth = 800;
// a read-only reference to the Location object. the location object does expose read/write properties
/**> $location - see location.js <**/
// The name of window/frame. Set directly, when using open(), or in frameset.
// May be used when specifying the target attribute of links
var $name;
// a read-only reference to the Navigator object
/**> $navigator - see navigator.js <**/
// a read/write reference to the Window object that contained the script that called open() to
//open this browser window. This property is valid only for top-level window objects.
var $opener;
// Read-only properties that specify the total height and width, in pixels, of the browser window.
// These dimensions include the height and width of the menu bar, toolbars, scrollbars, window
// borders and so on. These properties are not supported by IE and IE offers no alternative
// properties;
var $outerHeight = $innerHeight, $outerWidth = $innerWidth;
// Read-only properties that specify the number of pixels that the current document has been scrolled
//to the right and down. These are not supported by IE.
var $pageXOffset = 0, $pageYOffset = 0;
//A read-only reference to the Window object that contains this window or frame. If the window is
// a top-level window, parent refers to the window itself. If this window is a frame, this property
// refers to the window or frame that conatins it.
var $parent = $parentWindow;
// a read-only refernce to the Screen object that specifies information about the screen:
// the number of available pixels and the number of available colors.
/**> $screen - see screen.js <**/
// read only properties that specify the coordinates of the upper-left corner of the screen.
var $screenX = 0, $screenY = 0;
var $screenLeft = $screenX, $screenTop = $screenY;
// a read/write string that specifies the current contents of the status line.
var $status = '';
// a read-only reference to the top-level window that contains this window. If this
// window is a top-level window it is simply a refernce to itself. If this window
// is a frame, the top property refers to the top-level window that contains the frame.
var $top = $initTop;
// the window property is identical to the self property and to this obj
var $window = $w;
$debug("Initializing Window.");
__extend__($w,{
get closed(){return $closed;},
get defaultStatus(){return $defaultStatus;},
set defaultStatus(_defaultStatus){$defaultStatus = _defaultStatus;},
//get document(){return $document;}, - see document.js
get event(){return $event;},
get frames(){return undefined;}, // TODO: not yet any code to maintain list
get length(){return undefined;}, // should be frames.length, but.... TODO
//get history(){return $history;}, - see location.js
get innerHeight(){return $innerHeight;},
get innerWidth(){return $innerWidth;},
get clientHeight(){return $innerHeight;},
get clientWidth(){return $innerWidth;},
//get location(){return $location;}, see location.js
get name(){return $name;},
set name(newName){ $name = newName; },
//get navigator(){return $navigator;}, see navigator.js
get opener(){return $opener;},
get outerHeight(){return $outerHeight;},
get outerWidth(){return $outerWidth;},
get pageXOffest(){return $pageXOffset;},
get pageYOffset(){return $pageYOffset;},
get parent(){return $parent;},
//get screen(){return $screen;}, see screen.js
get screenLeft(){return $screenLeft;},
get screenTop(){return $screenTop;},
get screenX(){return $screenX;},
get screenY(){return $screenY;},
get self(){return $window;},
get status(){return $status;},
set status(_status){$status = _status;},
get top(){return $top || $window;},
get window(){return $window;}
});
$w.open = function(url, name, features, replace){
//TODO. Remember to set $opener, $name
};
$w.close = function(){
//TODO. Remember to set $closed
};
/* Time related functions - see timer.js
* - clearTimeout
* - clearInterval
* - setTimeout
* - setInterval
*/
/*
* Events related functions - see event.js
* - addEventListener
* - attachEvent
* - detachEvent
* - removeEventListener
*
* These functions are identical to the Element equivalents.
*/
/*
* UIEvents related functions - see uievent.js
* - blur
* - focus
*
* These functions are identical to the Element equivalents.
*/
/* Dialog related functions - see dialog.js
* - alert
* - confirm
* - prompt
*/
/* Screen related functions - see screen.js
* - moveBy
* - moveTo
* - print
* - resizeBy
* - resizeTo
* - scrollBy
* - scrollTo
*/
/* CSS related functions - see css.js
* - getComputedStyle
*/
/*
* Shared utility methods
*/
// Helper method for extending one object with another.
function __extend__(a,b) {
for ( var i in b ) {
var g = b.__lookupGetter__(i), s = b.__lookupSetter__(i);
if ( g || s ) {
if ( g ) a.__defineGetter__(i, g);
if ( s ) a.__defineSetter__(i, s);
} else
a[i] = b[i];
} return a;
};
// from ariel flesler http://flesler.blogspot.com/2008/11/fast-trim-function-for-javascript.html
// this might be a good utility function to provide in the env.core
// as in might be useful to the parser and other areas as well
function trim( str ){
return (str || "").replace( /^\s+|\s+$/g, "" );
};
/*function trim( str ){
var start = -1,
end = str.length;
/*jsl:ignore*
while( str.charCodeAt(--end) < 33 );
while( str.charCodeAt(++start) < 33 );
/*jsl:end*
return str.slice( start, end + 1 );
};*/
//from jQuery
function __setArray__( target, array ) {
// Resetting the length to 0, then using the native Array push
// is a super-fast way to populate an object with array-like properties
target.length = 0;
Array.prototype.push.apply( target, array );
};
$debug("Defining NodeList");
/*
* NodeList - DOM Level 2
*/
/**
* @class DOMNodeList - provides the abstraction of an ordered collection of nodes
*
* @author Jon van Noort (jon@webarcana.com.au)
*
* @param ownerDocument : DOMDocument - the ownerDocument
* @param parentNode : DOMNode - the node that the DOMNodeList is attached to (or null)
*/
var DOMNodeList = function(ownerDocument, parentNode) {
this.length = 0;
this.parentNode = parentNode;
this.ownerDocument = ownerDocument;
this._readonly = false;
__setArray__(this, []);
};
__extend__(DOMNodeList.prototype, {
item : function(index) {
var ret = null;
//$log("NodeList item("+index+") = " + this[index]);
if ((index >= 0) && (index < this.length)) { // bounds check
ret = this[index]; // return selected Node
}
return ret; // if the index is out of bounds, default value null is returned
},
get xml() {
var ret = "";
// create string containing the concatenation of the string values of each child
for (var i=0; i < this.length; i++) {
if(this[i]){
if(this[i].nodeType == DOMNode.TEXT_NODE && i>0 && this[i-1].nodeType == DOMNode.TEXT_NODE){
//add a single space between adjacent text nodes
ret += " "+this[i].xml;
}else{
ret += this[i].xml;
}
}
}
return ret;
},
toArray: function () {
var children = [];
for ( var i=0; i < this.length; i++) {
children.push (this[i]);
}
return children;
},
toString: function(){
return "[ "+(this.length > 0?Array.prototype.join.apply(this, [", "]):"Empty NodeList")+" ]";
}
});
/**
* @method DOMNodeList._findItemIndex - find the item index of the node with the specified internal id
* @author Jon van Noort (jon@webarcana.com.au)
* @param id : int - unique internal id
* @return : int
*/
var __findItemIndex__ = function (nodelist, id) {
var ret = -1;
// test that id is valid
if (id > -1) {
for (var i=0; i<nodelist.length; i++) {
// compare id to each node's _id
if (nodelist[i]._id == id) { // found it!
ret = i;
break;
}
}
}
return ret; // if node is not found, default value -1 is returned
};
/**
* @method DOMNodeList._insertBefore - insert the specified Node into the NodeList before the specified index
* Used by DOMNode.insertBefore(). Note: DOMNode.insertBefore() is responsible for Node Pointer surgery
* DOMNodeList._insertBefore() simply modifies the internal data structure (Array).
*
* @author Jon van Noort (jon@webarcana.com.au)
* @param newChild : DOMNode - the Node to be inserted
* @param refChildIndex : int - the array index to insert the Node before
*/
var __insertBefore__ = function(nodelist, newChild, refChildIndex) {
if ((refChildIndex >= 0) && (refChildIndex < nodelist.length)) { // bounds check
if (newChild.nodeType == DOMNode.DOCUMENT_FRAGMENT_NODE) { // node is a DocumentFragment
// append the children of DocumentFragment
Array.prototype.splice.apply(nodelist,[refChildIndex, 0].concat(newChild.childNodes.toArray()));
}
else {
// append the newChild
Array.prototype.splice.apply(nodelist,[refChildIndex, 0, newChild]);
}
}
};
/**
* @method DOMNodeList._replaceChild - replace the specified Node in the NodeList at the specified index
* Used by DOMNode.replaceChild(). Note: DOMNode.replaceChild() is responsible for Node Pointer surgery
* DOMNodeList._replaceChild() simply modifies the internal data structure (Array).
*
* @author Jon van Noort (jon@webarcana.com.au)
* @param newChild : DOMNode - the Node to be inserted
* @param refChildIndex : int - the array index to hold the Node
*/
var __replaceChild__ = function(nodelist, newChild, refChildIndex) {
var ret = null;
if ((refChildIndex >= 0) && (refChildIndex < nodelist.length)) { // bounds check
ret = nodelist[refChildIndex]; // preserve old child for return
if (newChild.nodeType == DOMNode.DOCUMENT_FRAGMENT_NODE) { // node is a DocumentFragment
// get array containing children prior to refChild
Array.prototype.splice.apply(nodelist,[refChildIndex, 1].concat(newChild.childNodes.toArray()));
}
else {
// simply replace node in array (links between Nodes are made at higher level)
nodelist[refChildIndex] = newChild;
}
}
return ret; // return replaced node
};
/**
* @method DOMNodeList._removeChild - remove the specified Node in the NodeList at the specified index
* Used by DOMNode.removeChild(). Note: DOMNode.removeChild() is responsible for Node Pointer surgery
* DOMNodeList._replaceChild() simply modifies the internal data structure (Array).
*
* @author Jon van Noort (jon@webarcana.com.au)
* @param refChildIndex : int - the array index holding the Node to be removed
*/
var __removeChild__ = function(nodelist, refChildIndex) {
var ret = null;
if (refChildIndex > -1) { // found it!
ret = nodelist[refChildIndex]; // return removed node
// rebuild array without removed child
Array.prototype.splice.apply(nodelist,[refChildIndex, 1]);
}
return ret; // return removed node
};
/**
* @method DOMNodeList._appendChild - append the specified Node to the NodeList
* Used by DOMNode.appendChild(). Note: DOMNode.appendChild() is responsible for Node Pointer surgery
* DOMNodeList._appendChild() simply modifies the internal data structure (Array).
*
* @author Jon van Noort (jon@webarcana.com.au)
* @param newChild : DOMNode - the Node to be inserted
*/
var __appendChild__ = function(nodelist, newChild) {
if (newChild.nodeType == DOMNode.DOCUMENT_FRAGMENT_NODE) { // node is a DocumentFragment
// append the children of DocumentFragment
Array.prototype.push.apply(nodelist, newChild.childNodes.toArray() );
} else {
// simply add node to array (links between Nodes are made at higher level)
Array.prototype.push.apply(nodelist, [newChild]);
}
};
/**
* @method DOMNodeList._cloneNodes - Returns a NodeList containing clones of the Nodes in this NodeList
*
* @author Jon van Noort (jon@webarcana.com.au)
* @param deep : boolean - If true, recursively clone the subtree under each of the nodes;
* if false, clone only the nodes themselves (and their attributes, if it is an Element).
* @param parentNode : DOMNode - the new parent of the cloned NodeList
* @return : DOMNodeList - NodeList containing clones of the Nodes in this NodeList
*/
var __cloneNodes__ = function(nodelist, deep, parentNode) {
var cloneNodeList = new DOMNodeList(nodelist.ownerDocument, parentNode);
// create list containing clones of each child
for (var i=0; i < nodelist.length; i++) {
__appendChild__(cloneNodeList, nodelist[i].cloneNode(deep));
}
return cloneNodeList;
};
$w.NodeList = DOMNodeList;
/**
* @class DOMNamedNodeMap - used to represent collections of nodes that can be accessed by name
* typically a set of Element attributes
*
* @extends DOMNodeList - note W3C spec says that this is not the case,
* but we need an item() method identicle to DOMNodeList's, so why not?
* @author Jon van Noort (jon@webarcana.com.au)
* @param ownerDocument : DOMDocument - the ownerDocument
* @param parentNode : DOMNode - the node that the DOMNamedNodeMap is attached to (or null)
*/
var DOMNamedNodeMap = function(ownerDocument, parentNode) {
//$log("\t\tcreating dom namednodemap");
this.DOMNodeList = DOMNodeList;
this.DOMNodeList(ownerDocument, parentNode);
__setArray__(this, []);
};
DOMNamedNodeMap.prototype = new DOMNodeList;
__extend__(DOMNamedNodeMap.prototype, {
getNamedItem : function(name) {
var ret = null;
// test that Named Node exists
var itemIndex = __findNamedItemIndex__(this, name);
if (itemIndex > -1) { // found it!
ret = this[itemIndex]; // return NamedNode
}
return ret; // if node is not found, default value null is returned
},
setNamedItem : function(arg) {
// test for exceptions
if (__ownerDocument__(this).implementation.errorChecking) {
// throw Exception if arg was not created by this Document
if (this.ownerDocument != arg.ownerDocument) {
throw(new DOMException(DOMException.WRONG_DOCUMENT_ERR));
}
// throw Exception if DOMNamedNodeMap is readonly
if (this._readonly || (this.parentNode && this.parentNode._readonly)) {
throw(new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR));
}
// throw Exception if arg is already an attribute of another Element object
if (arg.ownerElement && (arg.ownerElement != this.parentNode)) {
throw(new DOMException(DOMException.INUSE_ATTRIBUTE_ERR));
}
}
// get item index
var itemIndex = __findNamedItemIndex__(this, arg.name);
var ret = null;
if (itemIndex > -1) { // found it!
ret = this[itemIndex]; // use existing Attribute
// throw Exception if DOMAttr is readonly
if (__ownerDocument__(this).implementation.errorChecking && ret._readonly) {
throw(new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR));
} else {
this[itemIndex] = arg; // over-write existing NamedNode
this[arg.name] = arg;
}
} else {
// add new NamedNode
Array.prototype.push.apply(this, [arg]);
this[arg.name] = arg;
}
arg.ownerElement = this.parentNode; // update ownerElement
return ret; // return old node or null
},
removeNamedItem : function(name) {
var ret = null;
// test for exceptions
// throw Exception if DOMNamedNodeMap is readonly
if (__ownerDocument__(this).implementation.errorChecking &&
(this._readonly || (this.parentNode && this.parentNode._readonly))) {
throw(new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR));
}
// get item index
var itemIndex = __findNamedItemIndex__(this, name);
// throw Exception if there is no node named name in this map
if (__ownerDocument__(this).implementation.errorChecking && (itemIndex < 0)) {
throw(new DOMException(DOMException.NOT_FOUND_ERR));
}
// get Node
var oldNode = this[itemIndex];
//this[oldNode.name] = undefined;
// throw Exception if Node is readonly
if (__ownerDocument__(this).implementation.errorChecking && oldNode._readonly) {
throw(new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR));
}
// return removed node
return __removeChild__(this, itemIndex);
},
getNamedItemNS : function(namespaceURI, localName) {
var ret = null;
// test that Named Node exists
var itemIndex = __findNamedItemNSIndex__(this, namespaceURI, localName);
if (itemIndex > -1) { // found it!
ret = this[itemIndex]; // return NamedNode
}
return ret; // if node is not found, default value null is returned
},
setNamedItemNS : function(arg) {
// test for exceptions
if (__ownerDocument__(this).implementation.errorChecking) {
// throw Exception if DOMNamedNodeMap is readonly
if (this._readonly || (this.parentNode && this.parentNode._readonly)) {
throw(new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR));
}
// throw Exception if arg was not created by this Document
if (__ownerDocument__(this) != __ownerDocument__(arg)) {
throw(new DOMException(DOMException.WRONG_DOCUMENT_ERR));
}
// throw Exception if arg is already an attribute of another Element object
if (arg.ownerElement && (arg.ownerElement != this.parentNode)) {
throw(new DOMException(DOMException.INUSE_ATTRIBUTE_ERR));
}
}
// get item index
var itemIndex = __findNamedItemNSIndex__(this, arg.namespaceURI, arg.localName);
var ret = null;
if (itemIndex > -1) { // found it!
ret = this[itemIndex]; // use existing Attribute
// throw Exception if DOMAttr is readonly
if (__ownerDocument__(this).implementation.errorChecking && ret._readonly) {
throw(new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR));
} else {
this[itemIndex] = arg; // over-write existing NamedNode
}
}else {
// add new NamedNode
Array.prototype.push.apply(this, [arg]);
}
arg.ownerElement = this.parentNode;
return ret; // return old node or null
},
removeNamedItemNS : function(namespaceURI, localName) {
var ret = null;
// test for exceptions
// throw Exception if DOMNamedNodeMap is readonly
if (__ownerDocument__(this).implementation.errorChecking && (this._readonly || (this.parentNode && this.parentNode._readonly))) {
throw(new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR));
}
// get item index
var itemIndex = __findNamedItemNSIndex__(this, namespaceURI, localName);
// throw Exception if there is no matching node in this map
if (__ownerDocument__(this).implementation.errorChecking && (itemIndex < 0)) {
throw(new DOMException(DOMException.NOT_FOUND_ERR));
}
// get Node
var oldNode = this[itemIndex];
// throw Exception if Node is readonly
if (__ownerDocument__(this).implementation.errorChecking && oldNode._readonly) {
throw(new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR));
}
return __removeChild__(this, itemIndex); // return removed node
},
get xml() {
var ret = "";
// create string containing concatenation of all (but last) Attribute string values (separated by spaces)
for (var i=0; i < this.length -1; i++) {
ret += this[i].xml +" ";
}
// add last Attribute to string (without trailing space)
if (this.length > 0) {
ret += this[this.length -1].xml;
}
return ret;
}
});
/**
* @method DOMNamedNodeMap._findNamedItemIndex - find the item index of the node with the specified name
*
* @author Jon van Noort (jon@webarcana.com.au)
* @param name : string - the name of the required node
* @param isnsmap : if its a DOMNamespaceNodeMap
* @return : int
*/
var __findNamedItemIndex__ = function(namednodemap, name, isnsmap) {
var ret = -1;
// loop through all nodes
for (var i=0; i<namednodemap.length; i++) {
// compare name to each node's nodeName
if(isnsmap){
if (namednodemap[i].localName == localName) { // found it!
ret = i;
break;
}
}else{
if (namednodemap[i].name == name) { // found it!
ret = i;
break;
}
}
}
return ret; // if node is not found, default value -1 is returned
};
/**
* @method DOMNamedNodeMap._findNamedItemNSIndex - find the item index of the node with the specified namespaceURI and localName
*
* @author Jon van Noort (jon@webarcana.com.au)
* @param namespaceURI : string - the namespace URI of the required node
* @param localName : string - the local name of the required node
* @return : int
*/
var __findNamedItemNSIndex__ = function(namednodemap, namespaceURI, localName) {
var ret = -1;
// test that localName is not null
if (localName) {
// loop through all nodes
for (var i=0; i<namednodemap.length; i++) {
// compare name to each node's namespaceURI and localName
if ((namednodemap[i].namespaceURI == namespaceURI) && (namednodemap[i].localName == localName)) {
ret = i; // found it!
break;
}
}
}
return ret; // if node is not found, default value -1 is returned
};
/**
* @method DOMNamedNodeMap._hasAttribute - Returns true if specified node exists
*
* @author Jon van Noort (jon@webarcana.com.au)
* @param name : string - the name of the required node
* @return : boolean
*/
var __hasAttribute__ = function(namednodemap, name) {
var ret = false;
// test that Named Node exists
var itemIndex = __findNamedItemIndex__(namednodemap, name);
if (itemIndex > -1) { // found it!
ret = true; // return true
}
return ret; // if node is not found, default value false is returned
}
/**
* @method DOMNamedNodeMap._hasAttributeNS - Returns true if specified node exists
*
* @author Jon van Noort (jon@webarcana.com.au)
* @param namespaceURI : string - the namespace URI of the required node
* @param localName : string - the local name of the required node
* @return : boolean
*/
var __hasAttributeNS__ = function(namednodemap, namespaceURI, localName) {
var ret = false;
// test that Named Node exists
var itemIndex = __findNamedItemNSIndex__(namednodemap, namespaceURI, localName);
if (itemIndex > -1) { // found it!
ret = true; // return true
}
return ret; // if node is not found, default value false is returned
}
/**
* @method DOMNamedNodeMap._cloneNodes - Returns a NamedNodeMap containing clones of the Nodes in this NamedNodeMap
*
* @author Jon van Noort (jon@webarcana.com.au)
* @param parentNode : DOMNode - the new parent of the cloned NodeList
* @param isnsmap : bool - is this a DOMNamespaceNodeMap
* @return : DOMNamedNodeMap - NamedNodeMap containing clones of the Nodes in this DOMNamedNodeMap
*/
var __cloneNamedNodes__ = function(namednodemap, parentNode, isnsmap) {
var cloneNamedNodeMap = isnsmap?
new DOMNamespaceNodeMap(namednodemap.ownerDocument, parentNode):
new DOMNamedNodeMap(namednodemap.ownerDocument, parentNode);
// create list containing clones of all children
for (var i=0; i < namednodemap.length; i++) {
$debug("cloning node in named node map :" + namednodemap[i]);
__appendChild__(cloneNamedNodeMap, namednodemap[i].cloneNode(false));
}
return cloneNamedNodeMap;
};
/**
* @class DOMNamespaceNodeMap - used to represent collections of namespace nodes that can be accessed by name
* typically a set of Element attributes
*
* @extends DOMNamedNodeMap
*
* @author Jon van Noort (jon@webarcana.com.au)
*
* @param ownerDocument : DOMDocument - the ownerDocument
* @param parentNode : DOMNode - the node that the DOMNamespaceNodeMap is attached to (or null)
*/
var DOMNamespaceNodeMap = function(ownerDocument, parentNode) {
//$log("\t\t\tcreating dom namespacednodemap");
this.DOMNamedNodeMap = DOMNamedNodeMap;
this.DOMNamedNodeMap(ownerDocument, parentNode);
__setArray__(this, []);
};
DOMNamespaceNodeMap.prototype = new DOMNamedNodeMap;
__extend__(DOMNamespaceNodeMap.prototype, {
get xml() {
var ret = "";
// identify namespaces declared local to this Element (ie, not inherited)
for (var ind = 0; ind < this.length; ind++) {
// if namespace declaration does not exist in the containing node's, parentNode's namespaces
var ns = null;
try {
var ns = this.parentNode.parentNode._namespaces.
getNamedItem(this[ind].localName);
}
catch (e) {
//breaking to prevent default namespace being inserted into return value
break;
}
if (!(ns && (""+ ns.nodeValue == ""+ this[ind].nodeValue))) {
// display the namespace declaration
ret += this[ind].xml +" ";
}
}
return ret;
}
});
$debug("Defining Node");
/*
* Node - DOM Level 2
*/
/**
* @class DOMNode - The Node interface is the primary datatype for the entire Document Object Model.
* It represents a single node in the document tree.
* @author Jon van Noort (jon@webarcana.com.au), David Joham (djoham@yahoo.com) and Scott Severtson
* @param ownerDocument : DOMDocument - The Document object associated with this node.
*/
var DOMNode = function(ownerDocument) {
if (ownerDocument) {
this._id = ownerDocument._genId(); // generate unique internal id
}
this.namespaceURI = ""; // The namespace URI of this node (Level 2)
this.prefix = ""; // The namespace prefix of this node (Level 2)
this.localName = ""; // The localName of this node (Level 2)
this.nodeName = ""; // The name of this node
this.nodeValue = null; // The value of this node
this.className = ""; // The CSS class name of this node.
// The parent of this node. All nodes, except Document, DocumentFragment, and Attr may have a parent.
// However, if a node has just been created and not yet added to the tree, or if it has been removed from the tree, this is null
this.parentNode = null;
// A NodeList that contains all children of this node. If there are no children, this is a NodeList containing no nodes.
// The content of the returned NodeList is "live" in the sense that, for instance, changes to the children of the node object
// that it was created from are immediately reflected in the nodes returned by the NodeList accessors;
// it is not a static snapshot of the content of the node. This is true for every NodeList, including the ones returned by the getElementsByTagName method.
this.childNodes = new DOMNodeList(ownerDocument, this);
this.firstChild = null; // The first child of this node. If there is no such node, this is null
this.lastChild = null; // The last child of this node. If there is no such node, this is null.
this.previousSibling = null; // The node immediately preceding this node. If there is no such node, this is null.
this.nextSibling = null; // The node immediately following this node. If there is no such node, this is null.
this.ownerDocument = ownerDocument; // The Document object associated with this node
this.attributes = new DOMNamedNodeMap(this.ownerDocument, this);
this._namespaces = new DOMNamespaceNodeMap(ownerDocument, this); // The namespaces in scope for this node
this._readonly = false;
};
// nodeType constants
DOMNode.ELEMENT_NODE = 1;
DOMNode.ATTRIBUTE_NODE = 2;
DOMNode.TEXT_NODE = 3;
DOMNode.CDATA_SECTION_NODE = 4;
DOMNode.ENTITY_REFERENCE_NODE = 5;
DOMNode.ENTITY_NODE = 6;
DOMNode.PROCESSING_INSTRUCTION_NODE = 7;
DOMNode.COMMENT_NODE = 8;
DOMNode.DOCUMENT_NODE = 9;
DOMNode.DOCUMENT_TYPE_NODE = 10;
DOMNode.DOCUMENT_FRAGMENT_NODE = 11;
DOMNode.NOTATION_NODE = 12;
DOMNode.NAMESPACE_NODE = 13;
__extend__(DOMNode.prototype, {
hasAttributes : function() {
if (this.attributes.length == 0) {
return false;
}else{
return true;
}
},
insertBefore : function(newChild, refChild) {
var prevNode;
if(newChild==null || refChild==null){
return newChild;
}
// test for exceptions
if (__ownerDocument__(this).implementation.errorChecking) {
// throw Exception if DOMNode is readonly
if (this._readonly) {
throw(new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR));
}
// throw Exception if newChild was not created by this Document
if (__ownerDocument__(this) != __ownerDocument__(newChild)) {
throw(new DOMException(DOMException.WRONG_DOCUMENT_ERR));
}
// throw Exception if the node is an ancestor
if (__isAncestor__(this, newChild)) {
throw(new DOMException(DOMException.HIERARCHY_REQUEST_ERR));
}
}
if (refChild) { // if refChild is specified, insert before it
// find index of refChild
var itemIndex = __findItemIndex__(this.childNodes, refChild._id);
// throw Exception if there is no child node with this id
if (__ownerDocument__(this).implementation.errorChecking && (itemIndex < 0)) {
throw(new DOMException(DOMException.NOT_FOUND_ERR));
}
// if the newChild is already in the tree,
var newChildParent = newChild.parentNode;
if (newChildParent) {
// remove it
newChildParent.removeChild(newChild);
}
// insert newChild into childNodes
__insertBefore__(this.childNodes, newChild,
__findItemIndex__(this.childNodes, refChild._id));
// do node pointer surgery
prevNode = refChild.previousSibling;
// handle DocumentFragment
if (newChild.nodeType == DOMNode.DOCUMENT_FRAGMENT_NODE) {
if (newChild.childNodes.length > 0) {
// set the parentNode of DocumentFragment's children
for (var ind = 0; ind < newChild.childNodes.length; ind++) {
newChild.childNodes[ind].parentNode = this;
}
// link refChild to last child of DocumentFragment
refChild.previousSibling = newChild.childNodes[newChild.childNodes.length-1];
}
}else {
newChild.parentNode = this; // set the parentNode of the newChild
refChild.previousSibling = newChild; // link refChild to newChild
}
}else { // otherwise, append to end
prevNode = this.lastChild;
this.appendChild(newChild);
}
if (newChild.nodeType == DOMNode.DOCUMENT_FRAGMENT_NODE) {
// do node pointer surgery for DocumentFragment
if (newChild.childNodes.length > 0) {
if (prevNode) {
prevNode.nextSibling = newChild.childNodes[0];
}else { // this is the first child in the list
this.firstChild = newChild.childNodes[0];
}
newChild.childNodes[0].previousSibling = prevNode;
newChild.childNodes[newChild.childNodes.length-1].nextSibling = refChild;
}
}else {
// do node pointer surgery for newChild
if (prevNode) {
prevNode.nextSibling = newChild;
}else { // this is the first child in the list
this.firstChild = newChild;
}
newChild.previousSibling = prevNode;
newChild.nextSibling = refChild;
}
return newChild;
},
replaceChild : function(newChild, oldChild) {
var ret = null;
if(newChild==null || oldChild==null){
return oldChild;
}
// test for exceptions
if (__ownerDocument__(this).implementation.errorChecking) {
// throw Exception if DOMNode is readonly
if (this._readonly) {
throw(new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR));
}
// throw Exception if newChild was not created by this Document
if (__ownerDocument__(this) != __ownerDocument__(newChild)) {
throw(new DOMException(DOMException.WRONG_DOCUMENT_ERR));
}
// throw Exception if the node is an ancestor
if (__isAncestor__(this, newChild)) {
throw(new DOMException(DOMException.HIERARCHY_REQUEST_ERR));
}
}
// get index of oldChild
var index = __findItemIndex__(this.childNodes, oldChild._id);
// throw Exception if there is no child node with this id
if (__ownerDocument__(this).implementation.errorChecking && (index < 0)) {
throw(new DOMException(DOMException.NOT_FOUND_ERR));
}
// if the newChild is already in the tree,
var newChildParent = newChild.parentNode;
if (newChildParent) {
// remove it
newChildParent.removeChild(newChild);