(function (window, $) {
var _currentScripts;(function (window, $) {
var _currentScripts;Load the given html with no scripts Scripts passed back through uniqueScripts parameter
$.fn.partialLoadHtml = function (html, uniqueScripts, target) {This function is run on every script, it defines how we handle duplicates and inline scripts
var scriptFunction = function(i, script){
if (script.src) {Add scripts that haven’t yet been loaded
if(isScriptUnique(script.src)){
uniqueScripts.push(script);
}
} else {Add inline scripts. No way to de-dupe these.
uniqueScripts.push(script);
}
};
this.each(function (i, el) {
loadHtml(i, el, html, target, scriptFunction);
});
return this;
};
$.fn.partialLoad = function (url, target, data, callback) {Default to a GET request
var type = "GET";
var response;Overload simulation if target is a function, assume its a callback
if (jQuery.isFunction(target)) {
callback = target;
target = undefined;
} else if (data) {If the third param is a function, assume that it’s the callback
if (jQuery.isFunction(data)) {
callback = data;
data = undefined;
}Otherwise, its data to POST
else if (typeof data === "object") {
data = jQuery.param(data, jQuery.ajaxSettings.traditional);
type = "POST";
}
}
var self = this;This section derived from the internals of jQuery.fn.load()
Request the remote document
$.ajax({
url: url,
type: type,
dataType: "html",
data: data
}).done(function (responseText) {Save response for use in complete callback
response = arguments;This function is run on every script, it defines how we handle duplicates and inline scripts
var scriptFunction = function(i, script){
if (script.src) {Load scripts that haven’t yet been loaded
if(isScriptUnique(script.src)){
$.ajax({
type: "GET",
global: false,
url: script.src,
async: false,
dataType: "script"
});
}
} else {Execute inline scripts. No way to de-dupe these.
$.globalEval((script.text || script.textContent || script.innerHTML || "").replace(rcleanScript, "/*$0*/"));
}
};
self.each(function (i, el) {
loadHtml(i, el, responseText, target, scriptFunction);
});
}).complete(callback && function (jqXHR, status) {
self.each(callback, response || [jqXHR.responseText, status, jqXHR]);
});
return this;
};
var loadHtml = function(i, el, responseText, target, scriptFunction){
var $el = $(el);
var scripts = [];
var fragment = getFragmentAndScripts(responseText, target, $el, scripts);This call might cause exceptions, but we still want the callbacks to happen
try {See if a selector was specified
$el.html(fragment);
if (scripts.length) {
$.each(scripts, scriptFunction);
}
} catch (e) {suppressing these errors
}
};
var isScriptUnique = function (src) {
var srcLower = src.toLowerCase();Build a ‘set’ of already loaded scripts so we can ensure that they don’t get loaded more than once.
if (!_currentScripts) {
_currentScripts = {};
var currentScripts = document.getElementsByTagName("SCRIPT");
for (var i = 0; i < currentScripts.length; i++) {
if (currentScripts[i].src) {
_currentScripts[currentScripts[i].src.toLowerCase()] = true;
}
}
}This script is already loaded. Don’t load it again.
if (_currentScripts[srcLower]) {
return false;
}
_currentScripts[srcLower] = true;
return true;
};
var _currentStylesheets;
var isStylesheetUnique = function (href) {
var hrefLower = href.toLowerCase();Build a ‘set’ of already loaded scripts so we can ensure that they don’t get loaded more than once.
if (!_currentStylesheets) {
_currentStylesheets = {};
var currentStylesheets = document.getElementsByTagName("LINK");
for (var i = 0; i < currentStylesheets.length; i++) {
if (currentStylesheets[i].href) {
_currentStylesheets[currentStylesheets[i].href.toLowerCase()] = true;
}
}
}This stylesheet is already loaded. Don’t load it again.
if (_currentStylesheets[hrefLower]) {
return false;
}
_currentStylesheets[hrefLower] = true;
return true;
};
var rcleanScript = /^\s*<!(?:\[CDATA\[|\-\-)/;
var getFragmentAndScripts = function (responseText, selector, context, scripts) {
var $target;
if (selector) {
var $temp = $("<div>");A selector was specified. Load only the fragment. This will cause scripts in the fragment to be executed by jQuery.fn.html().
$temp[0].innerHTML = responseText;
$target = $temp.find(selector);
$target.find("script").map(function (i, elem) {
scripts.push(elem);
});
} else {HACK: jQuery 1.9 changed the signature of $.buildFragment() to expect a raw DOM document object, whereas previous versions expected a jQuery object, and would look up its ownerDocument.
if (compareVersion(jqueryVersion(), [1, 9, 0]) >= 0) {
context = context[0].ownerDocument;
}No selector was specified. Load all scripts on the page, as long as they haven’t been loaded before.
var fragment = $.buildFragment([responseText], context, scripts);
$target = fragment.fragment || fragment;
}
if (scripts.length) {
$.each(scripts, function (i, elem) {
if (elem.parentNode) {
elem.parentNode.removeChild(elem);
}
});
}Remove meta, link Preserve title: These don’t hurt anything, and the modal dialog framework uses them to get the title of the dialog.
var REMOVE_LIST = {
META: true,
LINK: true,
NOSCRIPT: true
};
var nodes = $target.jquery ? $target : $target.childNodes;
if (nodes) {
for (var i = nodes.length - 1; i >= 0; i--) {
var child = nodes[i];
if (REMOVE_LIST[child.tagName]) {Only remove stylesheets that have already been added
if (child.tagName == "LINK" && child.rel.toLowerCase() == "stylesheet" && child.href) {
if (isStylesheetUnique(child.href)) {
continue;
}
}
$target.removeChild(child);
}
}
}
return $target;
};
function jqueryVersion() {
return $.map(
$.fn.jquery.split("."),
function (value) {
return parseInt(value, 10);
});
}
function compareVersion(v1, v2) {
for (var i = 0; i < 3; i++) {
if (v1[i] != v2[i]) {
return (v1[i] > v2[i]) ? 1 : -1;
}
}
return 0;
}
})(window, jQuery);