Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / grpc / node_modules / protobufjs / src / ProtoBuf / Util.js

diff --git a/legacy-libs/grpc/node_modules/protobufjs/src/ProtoBuf/Util.js b/legacy-libs/grpc/node_modules/protobufjs/src/ProtoBuf/Util.js
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+/**\r
+ * @alias ProtoBuf.Util\r
+ * @expose\r
+ */\r
+ProtoBuf.Util = (function() {\r
+    "use strict";\r
+\r
+    /**\r
+     * ProtoBuf utilities.\r
+     * @exports ProtoBuf.Util\r
+     * @namespace\r
+     */\r
+    var Util = {};\r
+\r
+    /**\r
+     * Flag if running in node or not.\r
+     * @type {boolean}\r
+     * @const\r
+     * @expose\r
+     */\r
+    Util.IS_NODE = !!(\r
+        typeof process === 'object' && process+'' === '[object process]' && !process['browser']\r
+    );\r
+\r
+    /**\r
+     * Constructs a XMLHttpRequest object.\r
+     * @return {XMLHttpRequest}\r
+     * @throws {Error} If XMLHttpRequest is not supported\r
+     * @expose\r
+     */\r
+    Util.XHR = function() {\r
+        // No dependencies please, ref: http://www.quirksmode.org/js/xmlhttp.html\r
+        var XMLHttpFactories = [\r
+            function () {return new XMLHttpRequest()},\r
+            function () {return new ActiveXObject("Msxml2.XMLHTTP")},\r
+            function () {return new ActiveXObject("Msxml3.XMLHTTP")},\r
+            function () {return new ActiveXObject("Microsoft.XMLHTTP")}\r
+        ];\r
+        /** @type {?XMLHttpRequest} */\r
+        var xhr = null;\r
+        for (var i=0;i<XMLHttpFactories.length;i++) {\r
+            try { xhr = XMLHttpFactories[i](); }\r
+            catch (e) { continue; }\r
+            break;\r
+        }\r
+        if (!xhr)\r
+            throw Error("XMLHttpRequest is not supported");\r
+        return xhr;\r
+    };\r
+\r
+    /**\r
+     * Fetches a resource.\r
+     * @param {string} path Resource path\r
+     * @param {function(?string)=} callback Callback receiving the resource's contents. If omitted the resource will\r
+     *   be fetched synchronously. If the request failed, contents will be null.\r
+     * @return {?string|undefined} Resource contents if callback is omitted (null if the request failed), else undefined.\r
+     * @expose\r
+     */\r
+    Util.fetch = function(path, callback) {\r
+        if (callback && typeof callback != 'function')\r
+            callback = null;\r
+        if (Util.IS_NODE) {\r
+            var fs = require("fs");\r
+            if (callback) {\r
+                fs.readFile(path, function(err, data) {\r
+                    if (err)\r
+                        callback(null);\r
+                    else\r
+                        callback(""+data);\r
+                });\r
+            } else\r
+                try {\r
+                    return fs.readFileSync(path);\r
+                } catch (e) {\r
+                    return null;\r
+                }\r
+        } else {\r
+            var xhr = Util.XHR();\r
+            xhr.open('GET', path, callback ? true : false);\r
+            // xhr.setRequestHeader('User-Agent', 'XMLHTTP/1.0');\r
+            xhr.setRequestHeader('Accept', 'text/plain');\r
+            if (typeof xhr.overrideMimeType === 'function') xhr.overrideMimeType('text/plain');\r
+            if (callback) {\r
+                xhr.onreadystatechange = function() {\r
+                    if (xhr.readyState != 4) return;\r
+                    if (/* remote */ xhr.status == 200 || /* local */ (xhr.status == 0 && typeof xhr.responseText === 'string'))\r
+                        callback(xhr.responseText);\r
+                    else\r
+                        callback(null);\r
+                };\r
+                if (xhr.readyState == 4)\r
+                    return;\r
+                xhr.send(null);\r
+            } else {\r
+                xhr.send(null);\r
+                if (/* remote */ xhr.status == 200 || /* local */ (xhr.status == 0 && typeof xhr.responseText === 'string'))\r
+                    return xhr.responseText;\r
+                return null;\r
+            }\r
+        }\r
+    };\r
+\r
+    /**\r
+     * Converts a string to camel case.\r
+     * @param {string} str\r
+     * @returns {string}\r
+     * @expose\r
+     */\r
+    Util.toCamelCase = function(str) {\r
+        return str.replace(/_([a-zA-Z])/g, function ($0, $1) {\r
+            return $1.toUpperCase();\r
+        });\r
+    };\r
+    \r
+    return Util;\r
+})();\r