blob: 1485c812868f79c53c9435bcb8adf9c774267296 (
plain)
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
|
// Copyright 2008 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview A simple callback mechanism for notification about module
* loads. Should be considered package-private to goog.module.
*
*/
goog.provide('goog.module.ModuleLoadCallback');
goog.require('goog.debug.entryPointRegistry');
goog.require('goog.debug.errorHandlerWeakDep');
/**
* Class used to encapsulate the callbacks to be called when a module loads.
* @param {Function} fn Callback function.
* @param {Object=} opt_handler Optional handler under whose scope to execute
* the callback.
* @constructor
*/
goog.module.ModuleLoadCallback = function(fn, opt_handler) {
/**
* Callback function.
* @type {Function}
* @private
*/
this.fn_ = fn;
/**
* Optional handler under whose scope to execute the callback.
* @type {Object|undefined}
* @private
*/
this.handler_ = opt_handler;
};
/**
* Completes the operation and calls the callback function if appropriate.
* @param {*} context The module context.
*/
goog.module.ModuleLoadCallback.prototype.execute = function(context) {
if (this.fn_) {
this.fn_.call(this.handler_ || null, context);
this.handler_ = null;
this.fn_ = null;
}
};
/**
* Abort the callback, but not the actual module load.
*/
goog.module.ModuleLoadCallback.prototype.abort = function() {
this.fn_ = null;
this.handler_ = null;
};
// Register the browser event handler as an entry point, so that
// it can be monitored for exception handling, etc.
goog.debug.entryPointRegistry.register(
/**
* @param {function(!Function): !Function} transformer The transforming
* function.
*/
function(transformer) {
goog.module.ModuleLoadCallback.prototype.execute =
transformer(goog.module.ModuleLoadCallback.prototype.execute);
});
|