Code coverage report for src/wreqr.handlers.js

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
 
 
 
 
1
 
 
 
 
 
1
36
36
 
36
 
 
 
 
1
 
 
 
 
1
 
 
 
3
5
 
5
1
1
 
 
5
 
 
 
 
 
 
28
 
 
 
 
28
 
28
 
 
 
 
12
 
 
 
 
 
 
17
 
17
4
 
 
13
13
13
 
 
 
 
 
1
 
 
 
 
17
 
 
 
1
 
 
// Handlers
// --------
// A registry of functions to call, given a name
 
Wreqr.Handlers = (function(Backbone, _){
  "use strict";
  
  // Constructor
  // -----------
 
  var Handlers = function(options){
    this.options = options;
    this._wreqrHandlers = {};
    
    Iif (_.isFunction(this.initialize)){
      this.initialize(options);
    }
  };
 
  Handlers.extend = Backbone.Model.extend;
 
  // Instance Members
  // ----------------
 
  _.extend(Handlers.prototype, Backbone.Events, {
 
    // Add multiple handlers using an object literal configuration
    setHandlers: function(handlers){
      _.each(handlers, function(handler, name){
        var context = null;
 
        if (_.isObject(handler) && !_.isFunction(handler)){
          context = handler.context;
          handler = handler.callback;
        }
 
        this.setHandler(name, handler, context);
      }, this);
    },
 
    // Add a handler for the given name, with an
    // optional context to run the handler within
    setHandler: function(name, handler, context){
      var config = {
        callback: handler,
        context: context
      };
 
      this._wreqrHandlers[name] = config;
 
      this.trigger("handler:add", name, handler, context);
    },
 
    // Determine whether or not a handler is registered
    hasHandler: function(name){
      return !! this._wreqrHandlers[name];
    },
 
    // Get the currently registered handler for
    // the specified name. Throws an exception if
    // no handler is found.
    getHandler: function(name){
      var config = this._wreqrHandlers[name];
 
      if (!config){
        return;
      }
 
      return function(){
        var args = Array.prototype.slice.apply(arguments);
        return config.callback.apply(config.context, args);
      };
    },
 
    // Remove a handler for the specified name
    removeHandler: function(name){
      delete this._wreqrHandlers[name];
    },
 
    // Remove all handlers from this registry
    removeAllHandlers: function(){
      this._wreqrHandlers = {};
    }
  });
 
  return Handlers;
})(Backbone, _);