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
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/* <copyright>
This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved.
</copyright> */
bootstrap("require/browser", function (require) {
var Require = require("require/require");
var Promise = require("core/promise").Promise;
var URL = require("core/mini-url");
var global = typeof global !== "undefined" ? global : window;
Require.getLocation = function() {
return URL.resolve(window.location, ".");
};
Require.overlays = ["browser", "montage"];
// Due to crazy variabile availability of new and old XHR APIs across
// platforms, this implementation registers every known name for the event
// listeners. The promise library ascertains that the returned promise
// is resolved only by the first event.
// http://dl.dropbox.com/u/131998/yui/misc/get/browser-capabilities.html
Require.read = function (url) {
if (URL.resolve(window.location, url).indexOf("file:") === 0) {
throw new Error("XHR does not function for file: protocol");
}
var request = new XMLHttpRequest();
var response = Promise.defer();
function onload() {
if (xhrSuccess(request)) {
response.resolve(request.responseText);
} else {
onerror();
}
}
function onerror() {
response.reject("Can't XHR " + JSON.stringify(url));
}
try {
request.open("GET", url, true);
request.overrideMimeType("application/javascript");
request.onreadystatechange = function () {
if (request.readyState === 4) {
onload();
}
};
request.onload = request.load = onload;
request.onerror = request.error = onerror;
} catch (exception) {
response.reject(exception.message, exception);
}
request.send();
return response.promise;
};
// Determine if an XMLHttpRequest was successful
// Some versions of WebKit return 0 for successful file:// URLs
function xhrSuccess(req) {
return (req.status === 200 || (req.status === 0 && req.responseText));
}
// By using a named "eval" most browsers will execute in the global scope.
// http://www.davidflanagan.com/2010/12/global-eval-in.html
// Unfortunately execScript doesn't always return the value of the evaluated expression (at least in Chrome)
var globalEval = /*this.execScript ||*/eval;
// For Firebug evaled code isn't debuggable otherwise
// http://code.google.com/p/fbug/issues/detail?id=2198
if (global.navigator && global.navigator.userAgent.indexOf("Firefox") >= 0) {
globalEval = new Function("evalString", "return eval(evalString)");
}
Require.Compiler = function (config) {
return function(module) {
if (module.factory || module.text === void 0)
return module;
// Here we use a couple tricks to make debugging better in various browsers:
// TODO: determine if these are all necessary / the best options
// 1. name the function with something inteligible since some debuggers display the first part of each eval (Firebug)
// 2. append the "//@ sourceURL=location" hack (Safari, Chrome, Firebug)
// * http://pmuellr.blogspot.com/2009/06/debugger-friendly.html
// * http://blog.getfirebug.com/2009/08/11/give-your-eval-a-name-with-sourceurl/
// TODO: investigate why this isn't working in Firebug.
// 3. set displayName property on the factory function (Safari, Chrome)
var displayName = "__FILE__"+module.location.replace(/\.\w+$|\W/g, "__");
try {
module.factory = globalEval("(function "+displayName+"(require, exports, module) {"+module.text+"//*/\n})"+"\n//@ sourceURL="+module.location);
} catch (exception) {
throw new SyntaxError("in " + module.location + ": " + exception.message);
}
// This should work and would be simpler, but Firebug does not show scripts executed via "new Function()" constructor.
// TODO: sniff browser?
// module.factory = new Function("require", "exports", "module", module.text + "\n//*/"+sourceURLComment);
module.factory.displayName = displayName;
return module;
}
};
});
|