From c240ee633756f8fa45d63d3a3210f67dca0eac81 Mon Sep 17 00:00:00 2001
From: cha0s <git@cha0s.io>
Date: Mon, 18 Mar 2019 19:57:31 -0500
Subject: [PATCH] feat: meta.emit

---
 packages/mixins/property.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/packages/mixins/property.js b/packages/mixins/property.js
index c3792d1..8ab9e21 100644
--- a/packages/mixins/property.js
+++ b/packages/mixins/property.js
@@ -23,6 +23,12 @@ export function PropertyMixin(key, meta = {}) {
       meta.transformProperty = (key) => `${key}_PRIVATE_PROPERTY`;
     }
 
+    meta.emit = meta.emit || function(...args) {
+      if (this.emit) {
+        this.emit(...args);
+      }
+    }
+
     meta.eq = meta.eq || function (l, r) {
       return l === r;
     }
@@ -65,8 +71,8 @@ export function PropertyMixin(key, meta = {}) {
       set: function (value) {
         const old = meta.get.call(this);
         meta.set.call(this, value);
-        if (this.emit && !meta.eq.call(this, old, value)) {
-          this.emit(`${key}Changed`, old, value)
+        if (meta.track && meta.emit && !meta.eq.call(this, old, value)) {
+          meta.emit.call(this, `${key}Changed`, old, value);
         }
       },
     });