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Add hash-based permalink support and add zoom states to history.
This goes through the AB.history object for zooming and hiding/showing operations.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| /** | ||
| * jQuery hashchange 1.0.0 | ||
| * | ||
| * (based on jquery.history) | ||
| * | ||
| * Copyright (c) 2008 Chris Leishman (chrisleishman.com) | ||
| * Dual licensed under the MIT (MIT-LICENSE.txt) | ||
| * and GPL (GPL-LICENSE.txt) licenses. | ||
| */ | ||
| (function($) { | ||
|
|
||
| $.fn.extend({ | ||
| hashchange: function(callback) { this.bind('hashchange', callback) }, | ||
| openOnClick: function(href) { | ||
| if (href === undefined || href.length == 0) | ||
| href = '#'; | ||
| return this.click(function(ev) { | ||
| if (href && href.charAt(0) == '#') { | ||
| // execute load in separate call stack | ||
| window.setTimeout(function() { $.locationHash(href) }, 0); | ||
| } else { | ||
| window.location(href); | ||
| } | ||
| ev.stopPropagation(); | ||
| return false; | ||
| }); | ||
| } | ||
| }); | ||
|
|
||
| // IE 8 introduces the hashchange event natively - so nothing more to do | ||
| if ($.browser.msie && document.documentMode && document.documentMode >= 8) { | ||
| $.extend({ | ||
| locationHash: function(hash) { | ||
| if (!hash) hash = '#'; | ||
| else if (hash.charAt(0) != '#') hash = '#' + hash; | ||
| location.hash = hash; | ||
| } | ||
| }); | ||
| return; | ||
| } | ||
|
|
||
| var curHash; | ||
| // hidden iframe for IE (earlier than 8) | ||
| var iframe; | ||
|
|
||
| $.extend({ | ||
| locationHash: function(hash) { | ||
| if (curHash === undefined) return; | ||
|
|
||
| if (!hash) hash = '#'; | ||
| else if (hash.charAt(0) != '#') hash = '#' + hash; | ||
|
|
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| location.hash = hash; | ||
|
|
||
| if (curHash == hash) return; | ||
| curHash = hash; | ||
|
|
||
| if ($.browser.msie) updateIEFrame(hash); | ||
| $.event.trigger('hashchange'); | ||
| } | ||
| }); | ||
|
|
||
| $(document).ready(function() { | ||
| curHash = location.hash; | ||
| if ($.browser.msie) { | ||
| // stop the callback firing twice during init if no hash present | ||
| if (curHash == '') curHash = '#'; | ||
| // add hidden iframe for IE | ||
| iframe = $('<iframe />').hide().get(0); | ||
| $('body').prepend(iframe); | ||
| updateIEFrame(location.hash); | ||
| setInterval(checkHashIE, 100); | ||
| } else { | ||
| setInterval(checkHash, 100); | ||
| } | ||
| }); | ||
| $(window).unload(function() { iframe = null }); | ||
|
|
||
| function checkHash() { | ||
| var hash = location.hash; | ||
| if (hash != curHash) { | ||
| curHash = hash; | ||
| $.event.trigger('hashchange'); | ||
| } | ||
| } | ||
|
|
||
| if ($.browser.msie) { | ||
| // Attach a live handler for any anchor links | ||
| $('a[href^=#]').live('click', function() { | ||
| var hash = $(this).attr('href'); | ||
| // Don't intercept the click if there is an existing anchor on the page | ||
| // that matches this hash | ||
| if ($(hash).length == 0 && $('a[name='+hash.slice(1)+']').length == 0) { | ||
| $.locationHash(hash); | ||
| return false; | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| function checkHashIE() { | ||
| // On IE, check for location.hash of iframe | ||
| var idoc = iframe.contentDocument || iframe.contentWindow.document; | ||
| var hash = idoc.location.hash; | ||
| if (hash == '') hash = '#'; | ||
|
|
||
| if (hash != curHash) { | ||
| if (location.hash != hash) location.hash = hash; | ||
| curHash = hash; | ||
| $.event.trigger('hashchange'); | ||
| } | ||
| } | ||
|
|
||
| function updateIEFrame(hash) { | ||
| if (hash == '#') hash = ''; | ||
| var idoc = iframe.contentWindow.document; | ||
| idoc.open(); | ||
| idoc.close(); | ||
| if (idoc.location.hash != hash) idoc.location.hash = hash; | ||
| } | ||
|
|
||
| })(jQuery); |
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