ElggPriorityList.js

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elgg.ElggPriorityList = function() {
    this.length = 0;
    this.priorities_ = [];
};

elgg.ElggPriorityList.prototype.insert = function(obj, opt_priority) {
    var priority = 500;
    if (arguments.length == 2 && opt_priority !== undefined) {
        priority = parseInt(opt_priority, 10);
    }

    priority = Math.max(priority, 0);

    if (elgg.isUndefined(this.priorities_[priority])) {
        this.priorities_[priority] = [];
    }

    this.priorities_[priority].push(obj);
    this.length++;
};

elgg.ElggPriorityList.prototype.forEach = function(callback) {
    elgg.assertTypeOf('function', callback);

    var index = 0;

    this.priorities_.forEach(function(elems) {
        elems.forEach(function(elem) {
            callback(elem, index++);
        });
    });

    return this;
};

elgg.ElggPriorityList.prototype.every = function(callback) {
    elgg.assertTypeOf('function', callback);

    var index = 0;

    return this.priorities_.every(function(elems) {
        return elems.every(function(elem) {
            return callback(elem, index++);
        });
    });
};

elgg.ElggPriorityList.prototype.remove = function(obj) {
    this.priorities_.forEach(function(elems) {
        var index;
        while ((index = elems.indexOf(obj)) !== -1) {
            elems.splice(index, 1);
            this.length--;
        }
    });
};