public/tt-rss
1
0
Fork 0
mirror of https://git.tt-rss.org/git/tt-rss.git synced 2025-12-14 11:55:56 +00:00
Code Issues Releases Wiki Activity

build custom layer of Dojo to speed up loading of tt-rss (refs #293)

Browse Source
This commit is contained in:
Andrew Dolgov
2011-03-04 19:02:28 +03:00
parent cfad9259a6
commit a089699c89
144 changed files with 55627 additions and 13766 deletions
Download Patch File Download Diff File Expand all files Collapse all files

159
lib/dojo/cache.js
View File

@@ -5,50 +5,123 @@
*/
if(!dojo._hasResource["dojo.cache"]){
dojo._hasResource["dojo.cache"]=true;
if(!dojo._hasResource["dojo.cache"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojo.cache"] = true;
dojo.provide("dojo.cache");
/*=====
dojo.cache = {
// summary:
// A way to cache string content that is fetchable via `dojo.moduleUrl`.
};
=====*/
(function(){
var _1={};
dojo.cache=function(_2,_3,_4){
if(typeof _2=="string"){
var _5=dojo.moduleUrl(_2,_3);
}else{
_5=_2;
_4=_3;
}
var _6=_5.toString();
var _7=_4;
if(_4!=undefined&&!dojo.isString(_4)){
_7=("value" in _4?_4.value:undefined);
}
var _8=_4&&_4.sanitize?true:false;
if(typeof _7=="string"){
_7=_1[_6]=_8?dojo.cache._sanitize(_7):_7;
}else{
if(_7===null){
delete _1[_6];
}else{
if(!(_6 in _1)){
_7=dojo._getText(_6);
_1[_6]=_8?dojo.cache._sanitize(_7):_7;
}
_7=_1[_6];
}
}
return _7;
};
dojo.cache._sanitize=function(_9){
if(_9){
_9=_9.replace(/^\s*<\?xml(\s)+version=[\'\"](\d)*.(\d)*[\'\"](\s)*\?>/im,"");
var _a=_9.match(/<body[^>]*>\s*([\s\S]+)\s*<\/body>/im);
if(_a){
_9=_a[1];
}
}else{
_9="";
}
return _9;
};
var cache = {};
dojo.cache = function(/*String||Object*/module, /*String*/url, /*String||Object?*/value){
// summary:
// A getter and setter for storing the string content associated with the
// module and url arguments.
// description:
// module and url are used to call `dojo.moduleUrl()` to generate a module URL.
// If value is specified, the cache value for the moduleUrl will be set to
// that value. Otherwise, dojo.cache will fetch the moduleUrl and store it
// in its internal cache and return that cached value for the URL. To clear
// a cache value pass null for value. Since XMLHttpRequest (XHR) is used to fetch the
// the URL contents, only modules on the same domain of the page can use this capability.
// The build system can inline the cache values though, to allow for xdomain hosting.
// module: String||Object
// If a String, the module name to use for the base part of the URL, similar to module argument
// to `dojo.moduleUrl`. If an Object, something that has a .toString() method that
// generates a valid path for the cache item. For example, a dojo._Url object.
// url: String
// The rest of the path to append to the path derived from the module argument. If
// module is an object, then this second argument should be the "value" argument instead.
// value: String||Object?
// If a String, the value to use in the cache for the module/url combination.
// If an Object, it can have two properties: value and sanitize. The value property
// should be the value to use in the cache, and sanitize can be set to true or false,
// to indicate if XML declarations should be removed from the value and if the HTML
// inside a body tag in the value should be extracted as the real value. The value argument
// or the value property on the value argument are usually only used by the build system
// as it inlines cache content.
// example:
// To ask dojo.cache to fetch content and store it in the cache (the dojo["cache"] style
// of call is used to avoid an issue with the build system erroneously trying to intern
// this example. To get the build system to intern your dojo.cache calls, use the
// "dojo.cache" style of call):
// | //If template.html contains "<h1>Hello</h1>" that will be
// | //the value for the text variable.
// | var text = dojo["cache"]("my.module", "template.html");
// example:
// To ask dojo.cache to fetch content and store it in the cache, and sanitize the input
// (the dojo["cache"] style of call is used to avoid an issue with the build system
// erroneously trying to intern this example. To get the build system to intern your
// dojo.cache calls, use the "dojo.cache" style of call):
// | //If template.html contains "<html><body><h1>Hello</h1></body></html>", the
// | //text variable will contain just "<h1>Hello</h1>".
// | var text = dojo["cache"]("my.module", "template.html", {sanitize: true});
// example:
// Same example as previous, but demostrates how an object can be passed in as
// the first argument, then the value argument can then be the second argument.
// | //If template.html contains "<html><body><h1>Hello</h1></body></html>", the
// | //text variable will contain just "<h1>Hello</h1>".
// | var text = dojo["cache"](new dojo._Url("my/module/template.html"), {sanitize: true});
//Module could be a string, or an object that has a toString() method
//that will return a useful path. If it is an object, then the "url" argument
//will actually be the value argument.
if(typeof module == "string"){
var pathObj = dojo.moduleUrl(module, url);
}else{
pathObj = module;
value = url;
}
var key = pathObj.toString();
var val = value;
if(value != undefined && !dojo.isString(value)){
val = ("value" in value ? value.value : undefined);
}
var sanitize = value && value.sanitize ? true : false;
if(typeof val == "string"){
//We have a string, set cache value
val = cache[key] = sanitize ? dojo.cache._sanitize(val) : val;
}else if(val === null){
//Remove cached value
delete cache[key];
}else{
//Allow cache values to be empty strings. If key property does
//not exist, fetch it.
if(!(key in cache)){
val = dojo._getText(key);
cache[key] = sanitize ? dojo.cache._sanitize(val) : val;
}
val = cache[key];
}
return val; //String
};
dojo.cache._sanitize = function(/*String*/val){
// summary:
// Strips <?xml ...?> declarations so that external SVG and XML
// documents can be added to a document without worry. Also, if the string
// is an HTML document, only the part inside the body tag is returned.
// description:
// Copied from dijit._Templated._sanitizeTemplateString.
if(val){
val = val.replace(/^\s*<\?xml(\s)+version=[\'\"](\d)*.(\d)*[\'\"](\s)*\?>/im, "");
var matches = val.match(/<body[^>]*>\s*([\s\S]+)\s*<\/body>/im);
if(matches){
val = matches[1];
}
}else{
val = "";
}
return val; //String
};
})();
}