projects / extjs.git / blame
| Commit | Line | Data |
|---|---|---|
| 6527f429 DM |
1 | /**\r |
| 2 | * @private\r | |
| 3 | */\r | |
| 4 | Ext.define('Ext.mixin.Hookable', {\r | |
| 5 | extend: 'Ext.Mixin',\r | |
| 6 | \r | |
| 7 | mixinConfig: {\r | |
| 8 | id: 'hookable'\r | |
| 9 | },\r | |
| 10 | \r | |
| 11 | bindHook: function(instance, boundMethod, bindingMethod, preventDefault, extraArgs) {\r | |
| 12 | if (!bindingMethod) {\r | |
| 13 | bindingMethod = boundMethod;\r | |
| 14 | }\r | |
| 15 | \r | |
| 16 | var boundFn = instance[boundMethod],\r | |
| 17 | fn, binding;\r | |
| 18 | \r | |
| 19 | if (boundFn && boundFn.hasOwnProperty('$binding')) {\r | |
| 20 | binding = boundFn.$binding;\r | |
| 21 | if (binding.bindingMethod === bindingMethod && binding.bindingScope === this) {\r | |
| 22 | return this;\r | |
| 23 | }\r | |
| 24 | }\r | |
| 25 | \r | |
| 26 | instance[boundMethod] = fn = function() {\r | |
| 27 | var binding = fn.$binding,\r | |
| 28 | scope = binding.bindingScope,\r | |
| 29 | args = Array.prototype.slice.call(arguments);\r | |
| 30 | \r | |
| 31 | args.push(arguments);\r | |
| 32 | \r | |
| 33 | if (extraArgs) {\r | |
| 34 | args.push.apply(args, extraArgs);\r | |
| 35 | }\r | |
| 36 | \r | |
| 37 | if (!binding.preventDefault && scope[binding.bindingMethod].apply(scope, args) !== false) {\r | |
| 38 | return binding.boundFn.apply(this, arguments);\r | |
| 39 | }\r | |
| 40 | };\r | |
| 41 | fn.$binding = {\r | |
| 42 | preventDefault: !!preventDefault,\r | |
| 43 | boundFn: boundFn,\r | |
| 44 | bindingMethod: bindingMethod,\r | |
| 45 | bindingScope: this\r | |
| 46 | };\r | |
| 47 | \r | |
| 48 | return this;\r | |
| 49 | },\r | |
| 50 | \r | |
| 51 | unbindHook: function(instance, boundMethod, bindingMethod) {\r | |
| 52 | if (!bindingMethod) {\r | |
| 53 | bindingMethod = boundMethod;\r | |
| 54 | }\r | |
| 55 | \r | |
| 56 | var fn = instance[boundMethod],\r | |
| 57 | binding = fn.$binding,\r | |
| 58 | boundFn, currentBinding;\r | |
| 59 | \r | |
| 60 | while (binding) {\r | |
| 61 | boundFn = binding.boundFn;\r | |
| 62 | \r | |
| 63 | if (binding.bindingMethod === bindingMethod && binding.bindingScope === this) {\r | |
| 64 | if (currentBinding) {\r | |
| 65 | currentBinding.boundFn = boundFn;\r | |
| 66 | }\r | |
| 67 | else {\r | |
| 68 | instance[boundMethod] = boundFn;\r | |
| 69 | }\r | |
| 70 | \r | |
| 71 | return this;\r | |
| 72 | }\r | |
| 73 | \r | |
| 74 | currentBinding = binding;\r | |
| 75 | binding = boundFn.$binding;\r | |
| 76 | }\r | |
| 77 | \r | |
| 78 | return this;\r | |
| 79 | }\r | |
| 80 | });\r |