Discussed in https://github.com/spine/spine/issues/418, patch-format

master...unbinder.patch

From 863f316336dae0af7b418d30b40959b5fdd9dcba Mon Sep 17 00:00:00 2001
From: aeischeid <a.eischeid@gmail.com>
Date: Wed, 20 Feb 2013 11:42:46 -0600
Subject: [PATCH 01/10] wild stab at a test for instance individual events
 unbinding

---
 test/specs/model.js |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/test/specs/model.js b/test/specs/model.js
index 608e792..d1d9477 100644
--- a/test/specs/model.js
+++ b/test/specs/model.js
@@ -453,7 +453,7 @@ describe("Model", function(){
       asset.updateAttributes({name: "lonely heart.png"});
     });
 
-    it("should be able to unbind instance events", function(){
+    it("should be able to unbind all instance events", function(){
       var asset = Asset.create({name: "cartoon world.png"});
 
       asset.bind("save", spy);
@@ -462,6 +462,16 @@ describe("Model", function(){
 
       expect(spy).not.toHaveBeenCalled();
     });
+    
+    it("should be able to unbind individual instance events", function(){
+      var asset = Asset.create({name: "cartoon world.png"});
+
+      asset.bind("save, refresh, change", spy);
+      asset.unbind('save');
+      asset.save();
+
+      expect(spy).not.toHaveBeenCalled();
+    });
 
     it("should unbind events on instance destroy", function(){
       var asset = Asset.create({name: "cartoon world.png"});
-- 
1.7.10


From 28053c4d1d1fe9b78ad9c17b00e12a060e582e72 Mon Sep 17 00:00:00 2001
From: aeischeid <a.eischeid@gmail.com>
Date: Wed, 20 Feb 2013 11:59:20 -0600
Subject: [PATCH 02/10] more better tests that fail for the model instance
 unbinder

---
 test/specs/model.js |   15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/test/specs/model.js b/test/specs/model.js
index d1d9477..a4e57fb 100644
--- a/test/specs/model.js
+++ b/test/specs/model.js
@@ -466,11 +466,22 @@ describe("Model", function(){
     it("should be able to unbind individual instance events", function(){
       var asset = Asset.create({name: "cartoon world.png"});
 
-      asset.bind("save, refresh, change", spy);
+      asset.bind("save, customEvent", spy);
       asset.unbind('save');
       asset.save();
-
       expect(spy).not.toHaveBeenCalled();
+      asset.trigger('customEvent');
+      expect(spy).toHaveBeenCalled();
+    });
+    
+    it("should be able to unbind individual callbacks to individual instance events", function(){
+      var asset = Asset.create({name: "cartoon world.png"});
+      asset.bind("customEvent", spy);
+      asset.bind("customEvent", spy2);
+      asset.unbind("customEvent", spy2);
+      asset.trigger('customEvent');
+      expect(spy).toHaveBeenCalled();
+      expect(spy2).not.toHaveBeenCalled();
     });
 
     it("should unbind events on instance destroy", function(){
-- 
1.7.10


From 7af20a9099b39d5f7cad2530eaa6e9709613eb77 Mon Sep 17 00:00:00 2001
From: aeischeid <a.eischeid@gmail.com>
Date: Wed, 20 Feb 2013 12:18:07 -0600
Subject: [PATCH 03/10] forgot to define spy2 for test

---
 test/specs/model.js |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/specs/model.js b/test/specs/model.js
index a4e57fb..f5f1583 100644
--- a/test/specs/model.js
+++ b/test/specs/model.js
@@ -476,6 +476,9 @@ describe("Model", function(){
     
     it("should be able to unbind individual callbacks to individual instance events", function(){
       var asset = Asset.create({name: "cartoon world.png"});
+      var noop2 = {spy2: function(){}};
+      spyOn(noop2, "spy2");
+      var spy2 = noop2.spy2;
       asset.bind("customEvent", spy);
       asset.bind("customEvent", spy2);
       asset.unbind("customEvent", spy2);
-- 
1.7.10


From 0968b36c3332b250a95138aadd23ed5f83fa552b Mon Sep 17 00:00:00 2001
From: aeischeid <a.eischeid@gmail.com>
Date: Wed, 20 Feb 2013 11:42:46 -0600
Subject: [PATCH 04/10] wild stab at a test for instance individual events
 unbinding

---
 test/specs/model.js |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/test/specs/model.js b/test/specs/model.js
index 608e792..d1d9477 100644
--- a/test/specs/model.js
+++ b/test/specs/model.js
@@ -453,7 +453,7 @@ describe("Model", function(){
       asset.updateAttributes({name: "lonely heart.png"});
     });
 
-    it("should be able to unbind instance events", function(){
+    it("should be able to unbind all instance events", function(){
       var asset = Asset.create({name: "cartoon world.png"});
 
       asset.bind("save", spy);
@@ -462,6 +462,16 @@ describe("Model", function(){
 
       expect(spy).not.toHaveBeenCalled();
     });
+    
+    it("should be able to unbind individual instance events", function(){
+      var asset = Asset.create({name: "cartoon world.png"});
+
+      asset.bind("save, refresh, change", spy);
+      asset.unbind('save');
+      asset.save();
+
+      expect(spy).not.toHaveBeenCalled();
+    });
 
     it("should unbind events on instance destroy", function(){
       var asset = Asset.create({name: "cartoon world.png"});
-- 
1.7.10


From 72ba480d0d0e8570044d3d1710e6ee7c5f486895 Mon Sep 17 00:00:00 2001
From: aeischeid <a.eischeid@gmail.com>
Date: Wed, 20 Feb 2013 11:59:20 -0600
Subject: [PATCH 05/10] more better tests that fail for the model instance
 unbinder

---
 test/specs/model.js |   15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/test/specs/model.js b/test/specs/model.js
index d1d9477..a4e57fb 100644
--- a/test/specs/model.js
+++ b/test/specs/model.js
@@ -466,11 +466,22 @@ describe("Model", function(){
     it("should be able to unbind individual instance events", function(){
       var asset = Asset.create({name: "cartoon world.png"});
 
-      asset.bind("save, refresh, change", spy);
+      asset.bind("save, customEvent", spy);
       asset.unbind('save');
       asset.save();
-
       expect(spy).not.toHaveBeenCalled();
+      asset.trigger('customEvent');
+      expect(spy).toHaveBeenCalled();
+    });
+    
+    it("should be able to unbind individual callbacks to individual instance events", function(){
+      var asset = Asset.create({name: "cartoon world.png"});
+      asset.bind("customEvent", spy);
+      asset.bind("customEvent", spy2);
+      asset.unbind("customEvent", spy2);
+      asset.trigger('customEvent');
+      expect(spy).toHaveBeenCalled();
+      expect(spy2).not.toHaveBeenCalled();
     });
 
     it("should unbind events on instance destroy", function(){
-- 
1.7.10


From fe96cb4ebd41e49e9e050f58d3f58602d72de5be Mon Sep 17 00:00:00 2001
From: aeischeid <a.eischeid@gmail.com>
Date: Wed, 20 Feb 2013 12:18:07 -0600
Subject: [PATCH 06/10] forgot to define spy2 for test

---
 test/specs/model.js |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/specs/model.js b/test/specs/model.js
index a4e57fb..f5f1583 100644
--- a/test/specs/model.js
+++ b/test/specs/model.js
@@ -476,6 +476,9 @@ describe("Model", function(){
     
     it("should be able to unbind individual callbacks to individual instance events", function(){
       var asset = Asset.create({name: "cartoon world.png"});
+      var noop2 = {spy2: function(){}};
+      spyOn(noop2, "spy2");
+      var spy2 = noop2.spy2;
       asset.bind("customEvent", spy);
       asset.bind("customEvent", spy2);
       asset.unbind("customEvent", spy2);
-- 
1.7.10


From d8e5d360a4439bd5d9f6365e249a199fa2410aa3 Mon Sep 17 00:00:00 2001
From: Chris Engebretson <cengebretson@globalvetlink.com>
Date: Wed, 20 Feb 2013 14:31:16 -0600
Subject: [PATCH 07/10] first stab at getting unbind to work at the instance
 level, man that was a pain!

---
 lib/spine.js        |   14 ++++++++------
 src/spine.coffee    |   15 ++++++++-------
 test/specs/model.js |    3 ++-
 3 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/lib/spine.js b/lib/spine.js
index c0aa6dc..0127f33 100644
--- a/lib/spine.js
+++ b/lib/spine.js
@@ -632,10 +632,12 @@
           return callback.apply(_this, arguments);
         }
       });
-      this.constructor.bind('unbind', unbinder = function(record) {
-        if (record && _this.eql(record)) {
-          _this.constructor.unbind(events, binder);
-          return _this.constructor.unbind('unbind', unbinder);
+      this.constructor.bind("unbind", unbinder = function(record, event, cb) {
+        if (record && _this.eql(record) && (!event || events === event)) {
+          if (!cb || cb === callback) {
+            _this.constructor.unbind(events, binder);
+            return _this.constructor.unbind("unbind", unbinder);
+          }
         }
       });
       return binder;
@@ -657,8 +659,8 @@
       return (_ref = this.constructor).trigger.apply(_ref, args);
     };
 
-    Model.prototype.unbind = function() {
-      return this.trigger('unbind');
+    Model.prototype.unbind = function(events, callback) {
+      return this.trigger('unbind', events, callback);
     };
 
     return Model;
diff --git a/src/spine.coffee b/src/spine.coffee
index 650a945..5ed952a 100644
--- a/src/spine.coffee
+++ b/src/spine.coffee
@@ -38,7 +38,7 @@ Events =
         delete @_callbacks[name]
         continue
 
-      for cb, i in list when cb is callback
+      for cb, i in list when (cb is callback)
         list = list.slice()
         list.splice(i, 1)
         @_callbacks[name] = list
@@ -376,10 +376,11 @@ class Model extends Module
     @constructor.bind events, binder = (record) =>
       if record && @eql(record)
         callback.apply(this, arguments)
-    @constructor.bind 'unbind', unbinder = (record) =>
-      if record && @eql(record)
-        @constructor.unbind(events, binder)
-        @constructor.unbind('unbind', unbinder)
+    @constructor.bind "unbind", unbinder = (record, event, cb) =>
+      if record && @eql(record) and (not event or events is event)
+        if not cb or cb is callback
+          @constructor.unbind(events, binder)
+          @constructor.unbind("unbind", unbinder)
     binder
 
   one: (events, callback) ->
@@ -391,8 +392,8 @@ class Model extends Module
     args.splice(1, 0, this)
     @constructor.trigger(args...)
 
-  unbind: ->
-    @trigger('unbind')
+  unbind: (events, callback) ->
+    @trigger('unbind', events, callback)
 
 class Controller extends Module
   @include Events
diff --git a/test/specs/model.js b/test/specs/model.js
index f5f1583..20e9fe5 100644
--- a/test/specs/model.js
+++ b/test/specs/model.js
@@ -466,7 +466,8 @@ describe("Model", function(){
     it("should be able to unbind individual instance events", function(){
       var asset = Asset.create({name: "cartoon world.png"});
 
-      asset.bind("save, customEvent", spy);
+      asset.bind("save", spy);
+      asset.bind("customEvent", spy);
       asset.unbind('save');
       asset.save();
       expect(spy).not.toHaveBeenCalled();
-- 
1.7.10


From b1fe152d21816c7296bf0b242a71666624696bed Mon Sep 17 00:00:00 2001
From: Chris Engebretson <cengebretson@globalvetlink.com>
Date: Wed, 20 Feb 2013 18:31:35 -0600
Subject: [PATCH 08/10] should be able to use bind and unbind with multiple
 events. Also bind/one should return the this object.

---
 lib/spine.js        |   48 +++++++++++++++++++++++++++++++++++-------------
 src/spine.coffee    |   25 ++++++++++++++++---------
 test/specs/model.js |   31 +++++++++++++++++++++++++++++++
 3 files changed, 82 insertions(+), 22 deletions(-)

diff --git a/lib/spine.js b/lib/spine.js
index 0127f33..c5d3f77 100644
--- a/lib/spine.js
+++ b/lib/spine.js
@@ -625,29 +625,40 @@
     };
 
     Model.prototype.bind = function(events, callback) {
-      var binder, unbinder,
+      var binder, evs, _fn, _i, _len, _ref,
         _this = this;
       this.constructor.bind(events, binder = function(record) {
         if (record && _this.eql(record)) {
           return callback.apply(_this, arguments);
         }
       });
-      this.constructor.bind("unbind", unbinder = function(record, event, cb) {
-        if (record && _this.eql(record) && (!event || events === event)) {
-          if (!cb || cb === callback) {
-            _this.constructor.unbind(events, binder);
+      _ref = events.split(' ');
+      _fn = function(evs) {
+        var unbinder;
+        return _this.constructor.bind("unbind", unbinder = function(record, event, cb) {
+          if (record && _this.eql(record)) {
+            if (event && event !== evs) {
+              return;
+            }
+            if (cb && cb !== callback) {
+              return;
+            }
+            _this.constructor.unbind(event, binder);
             return _this.constructor.unbind("unbind", unbinder);
           }
-        }
-      });
-      return binder;
+        });
+      };
+      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+        evs = _ref[_i];
+        _fn(evs);
+      }
+      return this;
     };
 
     Model.prototype.one = function(events, callback) {
-      var binder,
-        _this = this;
-      return binder = this.bind(events, function() {
-        _this.constructor.unbind(events, binder);
+      var _this = this;
+      return this.bind(events, function() {
+        _this.unbind(events, arguments.callee);
         return callback.apply(_this, arguments);
       });
     };
@@ -660,7 +671,18 @@
     };
 
     Model.prototype.unbind = function(events, callback) {
-      return this.trigger('unbind', events, callback);
+      var event, _i, _len, _ref, _results;
+      if (events) {
+        _ref = events.split(' ');
+        _results = [];
+        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+          event = _ref[_i];
+          _results.push(this.trigger('unbind', event, callback));
+        }
+        return _results;
+      } else {
+        return this.trigger('unbind');
+      }
     };
 
     return Model;
diff --git a/src/spine.coffee b/src/spine.coffee
index 5ed952a..2311694 100644
--- a/src/spine.coffee
+++ b/src/spine.coffee
@@ -376,16 +376,19 @@ class Model extends Module
     @constructor.bind events, binder = (record) =>
       if record && @eql(record)
         callback.apply(this, arguments)
-    @constructor.bind "unbind", unbinder = (record, event, cb) =>
-      if record && @eql(record) and (not event or events is event)
-        if not cb or cb is callback
-          @constructor.unbind(events, binder)
-          @constructor.unbind("unbind", unbinder)
-    binder
+    for evs in events.split(' ') 
+      do (evs) =>
+        @constructor.bind "unbind", unbinder = (record, event, cb) =>
+          if record && @eql(record)
+            return if event and event isnt evs
+            return if cb and cb isnt callback
+            @constructor.unbind(event, binder)
+            @constructor.unbind("unbind", unbinder)
+    this
 
   one: (events, callback) ->
-    binder = @bind events, =>
-      @constructor.unbind(events, binder)
+    @bind events, =>
+      @unbind(events, arguments.callee)
       callback.apply(this, arguments)
 
   trigger: (args...) ->
@@ -393,7 +396,11 @@ class Model extends Module
     @constructor.trigger(args...)
 
   unbind: (events, callback) ->
-    @trigger('unbind', events, callback)
+    if events
+      for event in events.split(' ') 
+        @trigger('unbind', event, callback)
+    else
+      @trigger('unbind')
 
 class Controller extends Module
   @include Events
diff --git a/test/specs/model.js b/test/specs/model.js
index 20e9fe5..423b458 100644
--- a/test/specs/model.js
+++ b/test/specs/model.js
@@ -482,12 +482,43 @@ describe("Model", function(){
       var spy2 = noop2.spy2;
       asset.bind("customEvent", spy);
       asset.bind("customEvent", spy2);
+      asset.trigger("customEvent");
+      expect(spy).toHaveBeenCalled();
+      expect(spy2).toHaveBeenCalled();
+      spy.reset();
+      spy2.reset();
       asset.unbind("customEvent", spy2);
       asset.trigger('customEvent');
       expect(spy).toHaveBeenCalled();
       expect(spy2).not.toHaveBeenCalled();
     });
 
+    it("should be able to unbind a single event that uses a callback another event is bind to.", function(){
+      var asset = Asset.create({name: "cartoon world.png"});
+      asset.bind("customEvent1 customEvent2", spy);
+      asset.trigger("customEvent1");
+      asset.trigger("customEvent2");
+      expect(spy.calls.length).toEqual(2);
+      spy.reset();
+      asset.unbind("customEvent1");
+      asset.trigger("customEvent1");
+      asset.trigger("customEvent2");
+      expect(spy.calls.length).toEqual(1);
+    });
+
+    it("should be able to bind and unbind multiple events with a single call.", function(){
+      var asset = Asset.create({name: "cartoon world.png"});
+      asset.bind("customEvent1 customEvent2", spy)
+      asset.trigger("customEvent1");
+      asset.trigger("customEvent2");
+      expect(spy.calls.length).toEqual(2);
+      spy.reset();
+      asset.unbind("customEvent1 customEvent2")
+      asset.trigger("customEvent1");
+      asset.trigger("customEvent2");
+      expect(spy.calls.length).toEqual(0);
+    });
+
     it("should unbind events on instance destroy", function(){
       var asset = Asset.create({name: "cartoon world.png"});
 
-- 
1.7.10


From 80e7a3fc26a462b6909befa46ab1196f412751db Mon Sep 17 00:00:00 2001
From: Chris Engebretson <cengebretson@globalvetlink.com>
Date: Thu, 21 Feb 2013 18:30:56 -0600
Subject: [PATCH 09/10] better variable name

---
 src/spine.coffee |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/spine.coffee b/src/spine.coffee
index 2311694..e0e0cbf 100644
--- a/src/spine.coffee
+++ b/src/spine.coffee
@@ -376,11 +376,12 @@ class Model extends Module
     @constructor.bind events, binder = (record) =>
       if record && @eql(record)
         callback.apply(this, arguments)
-    for evs in events.split(' ') 
-      do (evs) =>
+    # create a wrapper function to be called with 'unbind' for each event 
+    for singleEvent in events.split(' ') 
+      do (singleEvent) =>
         @constructor.bind "unbind", unbinder = (record, event, cb) =>
           if record && @eql(record)
-            return if event and event isnt evs
+            return if event and event isnt singleEvent
             return if cb and cb isnt callback
             @constructor.unbind(event, binder)
             @constructor.unbind("unbind", unbinder)
-- 
1.7.10


From 6efd7bbf31e0256c465bc0bf0f020838ee0316a3 Mon Sep 17 00:00:00 2001
From: Chris Engebretson <cengebretson@globalvetlink.com>
Date: Thu, 21 Feb 2013 18:31:09 -0600
Subject: [PATCH 10/10] new spine.js build

---
 lib/spine.js |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/spine.js b/lib/spine.js
index c5d3f77..69821b0 100644
--- a/lib/spine.js
+++ b/lib/spine.js
@@ -625,7 +625,7 @@
     };
 
     Model.prototype.bind = function(events, callback) {
-      var binder, evs, _fn, _i, _len, _ref,
+      var binder, singleEvent, _fn, _i, _len, _ref,
         _this = this;
       this.constructor.bind(events, binder = function(record) {
         if (record && _this.eql(record)) {
@@ -633,11 +633,11 @@
         }
       });
       _ref = events.split(' ');
-      _fn = function(evs) {
+      _fn = function(singleEvent) {
         var unbinder;
         return _this.constructor.bind("unbind", unbinder = function(record, event, cb) {
           if (record && _this.eql(record)) {
-            if (event && event !== evs) {
+            if (event && event !== singleEvent) {
               return;
             }
             if (cb && cb !== callback) {
@@ -649,8 +649,8 @@
         });
       };
       for (_i = 0, _len = _ref.length; _i < _len; _i++) {
-        evs = _ref[_i];
-        _fn(evs);
+        singleEvent = _ref[_i];
+        _fn(singleEvent);
       }
       return this;
     };
-- 
1.7.10