Created
September 8, 2012 00:42
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function supports_history_api() { | |
return !!(window.history && history.pushState); | |
} | |
function swapPhoto(href) { | |
var req = new XMLHttpRequest(); | |
req.open("GET", | |
"http://diveintohtml5.org/examples/history/gallery/" + | |
href.split("/").pop(), | |
false); | |
req.send(null); | |
if (req.status == 200) { | |
document.getElementById("gallery").innerHTML = req.responseText; | |
setupHistoryClicks(); | |
return true; | |
} | |
return false; | |
} | |
function addClicker(link) { | |
link.addEventListener("click", function(e) { | |
if (swapPhoto(link.href)) { | |
history.pushState(null, null, link.href); | |
e.preventDefault(); | |
} | |
}, true); | |
} | |
function setupHistoryClicks() { | |
addClicker(document.getElementById("photonext")); | |
addClicker(document.getElementById("photoprev")); | |
} | |
window.onload = function() { | |
if (!supports_history_api()) { return; } | |
setupHistoryClicks(); | |
window.setTimeout(function() { | |
window.addEventListener("popstate", function(e) { | |
swapPhoto(location.pathname); | |
}, false); | |
}, 1); | |
} |
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