cmd/mist/assets/ext/filter.js


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var ethx = {
    prototype: Object,

    watch: function(options) {
        return new Filter(options);
    },

    note: function() {
        var args = Array.prototype.slice.call(arguments, 0);
        var o = []
        for(var i = 0; i < args.length; i++) {
            o.push(args[i].toString())
        }

        eth.notef(o);
    },
};

var Filter = function(options) {
    this.callbacks = [];
    this.options = options;

    if(options === "chain") {
        this.id = eth.newFilterString(options);
    } else if(typeof options === "object") {
        this.id = eth.newFilter(options);
    }
};

Filter.prototype.changed = function(callback) {
    this.callbacks.push(callback);

    var self = this;
    messages.connect(function(messages, id) {
        if(id ==  self.id) {
            for(var i = 0; i < self.callbacks.length; i++) {
                self.callbacks[i].call(self, messages);
            }
        }
    });
};

Filter.prototype.uninstall = function() {
    eth.uninstallFilter(this.id)
}

Filter.prototype.messages = function() {
    return eth.messages(this.id)
}