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jquery.djax.js
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jquery.djax.js
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/*
* jQuery djax
*
* @version v0.122
*
* Copyright 2012, Brian Zeligson
* Released under the MIT license.
* http://www.opensource.org/licenses/mit-license.php
*
* Homepage:
* http://beezee.github.com/djax.html
*
* Authors:
* Brian Zeligson
*
* Contributors:
* Gary Jones @GaryJones
*
* Maintainer:
* Brian Zeligson github @beezee
*
*/
/*jslint browser: true, indent: 4, maxerr: 50, sub: true */
/*jshint bitwise:true, curly:true, eqeqeq:true, forin:true, immed:true, latedef:true, noarg:true, noempty:true, nomen:true, nonew:true, onevar:true, plusplus:true, regexp:true, smarttabs:true, strict:true, trailing:true, undef:true, white:true, browser:true, jquery:true, indent:4, maxerr:50, */
/*global jQuery */
// ==ClosureCompiler==
// @compilation_level ADVANCED_OPTIMIZATIONS
// @output_file_name jquery.djax.js
// @externs_url http://closure-compiler.googlecode.com/svn/trunk/contrib/externs/jquery-1.7.js
// ==/ClosureCompiler==
// http://closure-compiler.appspot.com/home
(function ($, exports) {
'use strict';
$.fn.djax = function (selector, exceptions, replaceBlockWithFunc) {
// If browser doesn't support pushState, abort now
if (!history.pushState) {
return $(this);
}
var self = this,
blockSelector = selector,
excludes = (exceptions && exceptions.length) ? exceptions : [],
replaceBlockWith = (replaceBlockWithFunc) ? replaceBlockWithFunc : $.fn.replaceWith,
djaxing = false;
// Ensure that the history is correct when going from 2nd page to 1st
window.history.replaceState(
{
'url' : window.location.href,
'title' : $('title').text()
},
$('title').text(),
window.location.href
);
self.clearDjaxing = function() {
self.djaxing = false;
}
// Exclude the link exceptions
self.attachClick = function (element, event) {
var link = $(element),
exception = false;
$.each(excludes, function (index, exclusion) {
if (link.attr('href').indexOf(exclusion) !== -1) {
exception = true;
}
if (window.location.href.indexOf(exclusion) !== -1) {
exception = true;
}
});
// If the link is one of the exceptions, return early so that
// the link can be clicked and a full page load as normal
if (exception) {
return $(element);
}
// From this point on, we handle the behaviour
event.preventDefault();
// If we're already doing djaxing, return now and silently fail
if (self.djaxing) {
setTimeout(self.clearDjaxing, 1000);
return $(element);
}
$(window).trigger('djaxClick', [element]);
self.reqUrl = link.attr('href');
self.triggered = false;
self.navigate(link.attr('href'), true);
};
// Handle the navigation
self.navigate = function (url, add) {
var blocks = $(blockSelector);
self.djaxing = true;
// Get the new page
$(window).trigger(
'djaxLoading',
[{
'url' : url
}]
);
var replaceBlocks = function (response) {
if (url !== self.reqUrl) {
self.navigate(self.reqUrl, false);
return true;
}
var result = $(response),
newBlocks = $(result).find(blockSelector);
if (add) {
window.history.pushState(
{
'url' : url,
'title' : $(result).filter('title').text()
},
$(result).filter('title').text(),
url
);
}
// Set page title as new page title
$('title').text($(result).filter('title').text());
// Loop through each block and find new page equivalent
blocks.each(function () {
var id = '#' + $(this).attr('id'),
newBlock = newBlocks.filter(id),
block = $(this);
$('a', newBlock).filter(function () {
return this.hostname === location.hostname;
}).addClass('dJAX_internal').on('click', function (event) {
return self.attachClick(this, event);
});
if (newBlock.length) {
if (block.html() !== newBlock.html()) {
replaceBlockWith.call(block, newBlock);
}
} else {
block.remove();
}
});
// Loop through new page blocks and add in as needed
$.each(newBlocks, function () {
var newBlock = $(this),
id = '#' + $(this).attr('id'),
$previousSibling;
// If there is a new page block without an equivalent block
// in the old page, we need to find out where to insert it
if (!$(id).length) {
// Find the previous sibling
$previousSibling = $(result).find(id).prev();
if ($previousSibling.length) {
// Insert after the previous element
newBlock.insertAfter('#' + $previousSibling.attr('id'));
} else {
// There's no previous sibling, so prepend to parent instead
newBlock.prependTo('#' + newBlock.parent().attr('id'));
}
}
// Only add a class to internal links
$('a', newBlock).filter(function () {
return this.hostname === location.hostname;
}).addClass('dJAX_internal').on('click', function (event) {
return self.attachClick(this, event);
});
});
// Trigger djaxLoad event as a pseudo ready()
if (!self.triggered) {
$(window).trigger(
'djaxLoad',
[{
'url' : url,
'title' : $(result).filter('title').text(),
'response' : response
}]
);
self.triggered = true;
self.djaxing = false;
}
};
$.get(url, function (response) {
replaceBlocks(response);
}).error(function (response) {
// handle error
console.log('error', response);
replaceBlocks(response['responseText']);
});
}; /* End self.navigate */
// Only add a class to internal links
$(this).find('a').filter(function () {
return this.hostname === location.hostname;
}).addClass('dJAX_internal').on('click', function (event) {
return self.attachClick(this, event);
});
// On new page load
$(window).bind('popstate', function (event) {
self.triggered = false;
if (event.originalEvent.state) {
self.reqUrl = event.originalEvent.state.url;
self.navigate(event.originalEvent.state.url, false);
}
});
};
}(jQuery, window));