can.observe.setter.js

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can.observe.setter.js

/*!
* CanJS - 1.1.5 (2013-03-27)
* http://canjs.us/
* Copyright (c) 2013 Bitovi
* Licensed MIT
*/
(function (can, window, undefined) {

¶

can/observe/setter/setter.js
```
    can.classize = function (s, join) {
```

this can be moved out .. used for getter setter

        var parts = s.split(can.undHash),
            i = 0;
        for (; i < parts.length; i++) {
            parts[i] = can.capitalize(parts[i]);
        }

        return parts.join(join || '');
    }

    var classize = can.classize,
        proto = can.Observe.prototype,
        old = proto.__set;

    proto.__set = function (prop, value, current, success, error) {

check if there's a setter

        var cap = classize(prop),
            setName = "set" + cap,
            errorCallback = function (errors) {
                var stub = error && error.call(self, errors);

if 'setter' is on the page it will trigger the error itself and we dont want to trigger the event twice. :)

                if (stub !== false) {
                    can.trigger(self, "error", [prop, errors], true);
                }

                return false;
            },
            self = this;

¶

if we have a setter
```
        if (this[setName] &&
```

call the setter, if returned value is undefined, this means the setter is async so we do not call update property and return right away

        (value = this[setName](value, function (value) {
            old.call(self, prop, value, current, success, errorCallback)
        }, errorCallback)) === undefined) {
            return;
        }

        old.call(self, prop, value, current, success, errorCallback);

        return this;
    };

})(can, this);

can.observe.setter.js

can/observe/setter/setter.js