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can-event-queue/type/type

  • Edit on GitHub

Mixin methods and symbols to make a type constructor function able to broadcast changes in its instances.

mixinTypeBindings( type )

Adds symbols and methods that make type work with the following can-reflect APIs:

  • onInstanceBoundChange - Observe when instances are bound.
  • onInstancePatches - Observe patche events on all instances.

When mixinTypeBindings is called on an Person type like:

var mixinTypeBindings = require("can-event-queue/type/type");
var mixinLegacyMapBindings = require("can-event-queue/map/map");

class Person {
  constructor(data){
    this.data = data;
  }
}
mixinTypeBindings(Person);
mixinLegacyMapBindings(Person.prototype);

var me = new Person({first: "Justin", last: "Meyer"});

// mixinTypeBindings allows you to listen to
// when a person instance's bind stache changes
canReflect.onInstanceBoundChange(Person, function(person, isBound){
   console.log("isBound");
});

// mixinTypeBindings allows you to listen to
// when a patch change happens.
canReflect.onInstancePatches(Person, function(person, patches){
   console.log(patches[0]);
});

me.on("name",function(ev, newVal, oldVal){}) //-> logs: "isBound"

me.dispatch({
  type: "first",
  patches: [{type: "set", key: "first", value: "Ramiya"}]
}, ["Ramiya","Justin"])
//-> logs: {type: "set", key: "first", value: "Ramiya"}

CanJS is part of DoneJS. Created and maintained by the core DoneJS team and Bitovi. Currently 4.3.0.

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