ui.js
4.17 KB
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(function() {
var RETRY_TEMPLATE, TEMPLATE, _onreadystatechange, addClass, content, createFromHTML, el, flashClass, flashTimeouts, init, removeClass, render, roundTime;
if (!window.Offline) {
throw new Error("Offline UI brought in without offline.js");
}
TEMPLATE = '<div class="offline-ui"><div class="offline-ui-content"></div></div>';
RETRY_TEMPLATE = '<a href class="offline-ui-retry"></a>';
createFromHTML = function(html) {
var el;
el = document.createElement('div');
el.innerHTML = html;
return el.children[0];
};
el = content = null;
addClass = function(name) {
removeClass(name);
return el.className += " " + name;
};
removeClass = function(name) {
return el.className = el.className.replace(new RegExp("(^| )" + (name.split(' ').join('|')) + "( |$)", 'gi'), ' ');
};
flashTimeouts = {};
flashClass = function(name, time) {
addClass(name);
if (flashTimeouts[name] != null) {
clearTimeout(flashTimeouts[name]);
}
return flashTimeouts[name] = setTimeout(function() {
removeClass(name);
return delete flashTimeouts[name];
}, time * 1000);
};
roundTime = function(sec) {
var mult, unit, units, val;
units = {
'day': 86400,
'hour': 3600,
'minute': 60,
'second': 1
};
for (unit in units) {
mult = units[unit];
if (sec >= mult) {
val = Math.floor(sec / mult);
return [val, unit];
}
}
return ['now', ''];
};
render = function() {
var button, handler;
el = createFromHTML(TEMPLATE);
document.body.appendChild(el);
if ((Offline.reconnect != null) && Offline.getOption('reconnect')) {
el.appendChild(createFromHTML(RETRY_TEMPLATE));
button = el.querySelector('.offline-ui-retry');
handler = function(e) {
e.preventDefault();
return Offline.reconnect.tryNow();
};
if (button.addEventListener != null) {
button.addEventListener('click', handler, false);
} else {
button.attachEvent('click', handler);
}
}
addClass("offline-ui-" + Offline.state);
return content = el.querySelector('.offline-ui-content');
};
init = function() {
render();
Offline.on('up', function() {
removeClass('offline-ui-down');
addClass('offline-ui-up');
flashClass('offline-ui-up-2s', 2);
return flashClass('offline-ui-up-5s', 5);
});
Offline.on('down', function() {
removeClass('offline-ui-up');
addClass('offline-ui-down');
flashClass('offline-ui-down-2s', 2);
return flashClass('offline-ui-down-5s', 5);
});
Offline.on('reconnect:connecting', function() {
addClass('offline-ui-connecting');
return removeClass('offline-ui-waiting');
});
Offline.on('reconnect:tick', function() {
var ref, time, unit;
addClass('offline-ui-waiting');
removeClass('offline-ui-connecting');
ref = roundTime(Offline.reconnect.remaining), time = ref[0], unit = ref[1];
content.setAttribute('data-retry-in-value', time);
return content.setAttribute('data-retry-in-unit', unit);
});
Offline.on('reconnect:stopped', function() {
removeClass('offline-ui-connecting offline-ui-waiting');
content.setAttribute('data-retry-in-value', null);
return content.setAttribute('data-retry-in-unit', null);
});
Offline.on('reconnect:failure', function() {
flashClass('offline-ui-reconnect-failed-2s', 2);
return flashClass('offline-ui-reconnect-failed-5s', 5);
});
return Offline.on('reconnect:success', function() {
flashClass('offline-ui-reconnect-succeeded-2s', 2);
return flashClass('offline-ui-reconnect-succeeded-5s', 5);
});
};
if (document.readyState === 'complete') {
init();
} else if (document.addEventListener != null) {
document.addEventListener('DOMContentLoaded', init, false);
} else {
_onreadystatechange = document.onreadystatechange;
document.onreadystatechange = function() {
if (document.readyState === 'complete') {
init();
}
return typeof _onreadystatechange === "function" ? _onreadystatechange.apply(null, arguments) : void 0;
};
}
}).call(this);