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/*
----------------------------------------
window.Queue : 0.1.1 : http://mudcu.be
----------------------------------------
var queue = new Queue({
items: list,
oncomplete: function() {
queue.reset(); // infinite loop!
queue.next();
},
next: function(item) {
if (item[0] !== "." && item.indexOf(".") === -1) {
readDir(dir + item + "/", queue.next);
} else {
setTimeout(queue.next, 1)
}
}
});
*/
if (typeof(window) === "undefined") window = {};
window.Queue = function(conf) {
var that = this;
/// Request the next item in stack.
this.next = function() {
var arr = that.queue;
/// Emit the progress of the queue.
if (conf.onprogress) {
conf.onprogress(that.length ? 1 - that.remaining / that.length : 1);
}
/// Check whether the queue is complete.
if (!arr.length) {
if (conf.oncomplete) {
conf.oncomplete();
}
return;
}
/// Indicate previous element as processed.
that.remaining --;
/// Cleanup previous completed dimension.
if (String(arr[0]) === "[object Object]" && !arr[0].length) {
arr.shift();
}
/// Process next item in multi-dimensional stack.
if (String(arr[0]) === "[object Object]" && arr[0].length) {
conf.next(arr[0].shift());
} else { // ditto for single-dimensional stack.
conf.next(arr.shift());
}
};
///
this.reset = function(items) {
items = items || conf.items;
this.length = 0;
this.remaining = -1;
this.queue = [];
/// Flatten multi-dimensional objects.
for (var key in items) {
if (String(items[key]) === "[object Object]") {
var sub = [];
this.queue.push(sub);
for (var id in items[key]) {
sub.push(items[key][id]);
this.length ++;
this.remaining ++;
}
} else {
this.queue.push(items[key]);
this.length ++;
this.remaining ++;
}
}
};
///
this.reset();
/// Escape event loop.
setTimeout(this.next, 1);
///
return this;
};
/// For NodeJS
if (typeof (module) !== "undefined" && module.exports) {
module.exports = window.Queue;
}
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