109 lines
3.6 KiB
JavaScript
109 lines
3.6 KiB
JavaScript
/*
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Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
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Available via Academic Free License >= 2.1 OR the modified BSD license.
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see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojo._base.window"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
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dojo._hasResource["dojo._base.window"] = true;
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dojo.provide("dojo._base.window");
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/*=====
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dojo.doc = {
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// summary:
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// Alias for the current document. 'dojo.doc' can be modified
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// for temporary context shifting. Also see dojo.withDoc().
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// description:
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// Refer to dojo.doc rather
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// than referring to 'window.document' to ensure your code runs
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// correctly in managed contexts.
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// example:
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// | n.appendChild(dojo.doc.createElement('div'));
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}
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=====*/
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dojo.doc = window["document"] || null;
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dojo.body = function(){
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// summary:
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// Return the body element of the document
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// return the body object associated with dojo.doc
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// example:
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// | dojo.body().appendChild(dojo.doc.createElement('div'));
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// Note: document.body is not defined for a strict xhtml document
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// Would like to memoize this, but dojo.doc can change vi dojo.withDoc().
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return dojo.doc.body || dojo.doc.getElementsByTagName("body")[0]; // Node
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};
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dojo.setContext = function(/*Object*/globalObject, /*DocumentElement*/globalDocument){
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// summary:
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// changes the behavior of many core Dojo functions that deal with
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// namespace and DOM lookup, changing them to work in a new global
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// context (e.g., an iframe). The varibles dojo.global and dojo.doc
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// are modified as a result of calling this function and the result of
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// `dojo.body()` likewise differs.
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dojo.global = globalObject;
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dojo.doc = globalDocument;
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};
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dojo.withGlobal = function( /*Object*/globalObject,
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/*Function*/callback,
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/*Object?*/thisObject,
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/*Array?*/cbArguments){
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// summary:
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// Invoke callback with globalObject as dojo.global and
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// globalObject.document as dojo.doc.
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// description:
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// Invoke callback with globalObject as dojo.global and
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// globalObject.document as dojo.doc. If provided, globalObject
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// will be executed in the context of object thisObject
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// When callback() returns or throws an error, the dojo.global
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// and dojo.doc will be restored to its previous state.
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var oldGlob = dojo.global;
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try{
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dojo.global = globalObject;
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return dojo.withDoc.call(null, globalObject.document, callback, thisObject, cbArguments);
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}finally{
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dojo.global = oldGlob;
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}
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};
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dojo.withDoc = function( /*DocumentElement*/documentObject,
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/*Function*/callback,
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/*Object?*/thisObject,
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/*Array?*/cbArguments){
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// summary:
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// Invoke callback with documentObject as dojo.doc.
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// description:
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// Invoke callback with documentObject as dojo.doc. If provided,
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// callback will be executed in the context of object thisObject
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// When callback() returns or throws an error, the dojo.doc will
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// be restored to its previous state.
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var oldDoc = dojo.doc,
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oldLtr = dojo._bodyLtr,
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oldQ = dojo.isQuirks;
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try{
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dojo.doc = documentObject;
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delete dojo._bodyLtr; // uncache
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dojo.isQuirks = dojo.doc.compatMode == "BackCompat"; // no need to check for QuirksMode which was Opera 7 only
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if(thisObject && typeof callback == "string"){
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callback = thisObject[callback];
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}
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return callback.apply(thisObject, cbArguments || []);
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}finally{
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dojo.doc = oldDoc;
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delete dojo._bodyLtr; // in case it was undefined originally, and set to true/false by the alternate document
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if(oldLtr !== undefined){ dojo._bodyLtr = oldLtr; }
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dojo.isQuirks = oldQ;
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}
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};
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}
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