trunk/script/comm.js

/*----------------------------------------
$Id: comm.js,v 1.5 2005/10/12 23:15:13 migurski Exp $
vim: ts=4 foldcolumn=4 foldmethod=marker

This file is part of Reblog: http://reblog.org
A derivative work of Feed On Feeds: http://feedonfeeds.com

Distributed under the Gnu Public License, see LICENSE

Copyright ©2004 Michael Frumin, Michal Migurski
mike@stamen.com, http://stamen.com
mfrumin@eyebeam.org, http://eyebeam.org

comm.js - Refeed.ServerComm handles JSON-RPC calls to Refeed
----------------------------------------*/

// namespace
if(window.refeed == null) { window.refeed = {}; }
if(Refeed == null) { var Refeed = window.refeed; }

Refeed.ServerComm = {

    remoteCall: function(method, params, onResult, onError)
    {
        if(window.XMLHttpRequest) {
            var request = new XMLHttpRequest();
    
        } else if(window.ActiveXObject) {
            var request = new ActiveXObject("Microsoft.XMLHTTP");

        }
    
        if(request) {
            request.onreadystatechange = function()
            {
                if(request.readyState == 4) {
                    if(request.status == '200') {
                        //alert(request.responseText);
                        eval('var response = '+request.responseText+';');
                    
                        if(response.result && !response.error && onResult) {
                            onResult(response.result);
    
                        } else if(response.error && !response.result && onError) {
                            onError(response.error);
    
                        }
                    }
                }
            };
    
            request.open("POST", Refeed.ServerComm.callHREF, true);
            request.send(Refeed.ServerComm.jsonEncode({method:method, params:params, id:0}));
        }
    },
    
    jsonEncode: function(arg)
    {
        var i, o, u, v;
    
        switch (typeof arg) {
        case 'object':
            if (arg) {
                if (arg.constructor == Array) {
                    o = '';
                    for (i = 0; i < arg.length; ++i) {
                        v = Refeed.ServerComm.jsonEncode(arg[i]);
                        if (o) {
                            o += ',';
                        }
                        if (v !== u) {
                            o += v;
                        } else {
                            o += 'null,';
                        }
                    }
                    return '[' + o + ']';
                } else if (typeof arg.toString != 'undefined') {
                    o = '';
                    for (i in arg) {
                        v = Refeed.ServerComm.jsonEncode(arg[i]);
                        if (v !== u) {
                            if (o) {
                                o += ',';
                            }
                            o += Refeed.ServerComm.jsonEncode(i) + ':' + v;
                        }
                    }
                    return '{' + o + '}';
                } else {
                    return;
                }
            }
            return 'null';
        case 'unknown':
        case 'undefined':
        case 'function':
            return u;
        case 'string':
            var c, i, l = arg.length, o = '"';
            for (i = 0; i < l; i += 1) {
                c = arg.charAt(i);
                if (c >= ' ') {
                    if (c == '\\' || c == '"') {
                        o += '\\';
                    }
                    o += c;
                } else {
                    switch (c) {
                    case '\b':
                        o += '\\b';
                        break;
                    case '\f':
                        o += '\\f';
                        break;
                    case '\n':
                        o += '\\n';
                        break;
                    case '\r':
                        o += '\\r';
                        break;
                    case '\t':
                        o += '\\t';
                        break;
                    default:
                        c = c.charCodeAt();
                        o += '\\u00' + Math.floor(c / 16).toString(16) +
                            (c % 16).toString(16);
                    }
                }
            }
            return o + '"';
        default:
            return String(arg);
        }
    }
};
1	dpavlin	2	/*----------------------------------------
2			$Id: comm.js,v 1.5 2005/10/12 23:15:13 migurski Exp $
3			vim: ts=4 foldcolumn=4 foldmethod=marker
4
5			This file is part of Reblog: http://reblog.org
6			A derivative work of Feed On Feeds: http://feedonfeeds.com
7
8			Distributed under the Gnu Public License, see LICENSE
9
10			Copyright ©2004 Michael Frumin, Michal Migurski
11			mike@stamen.com, http://stamen.com
12			mfrumin@eyebeam.org, http://eyebeam.org
13
14			comm.js - Refeed.ServerComm handles JSON-RPC calls to Refeed
15			----------------------------------------*/
16
17			// namespace
18			if(window.refeed == null) { window.refeed = {}; }
19			if(Refeed == null) { var Refeed = window.refeed; }
20
21			Refeed.ServerComm = {
22
23			remoteCall: function(method, params, onResult, onError)
24			{
25			if(window.XMLHttpRequest) {
26			var request = new XMLHttpRequest();
27
28			} else if(window.ActiveXObject) {
29			var request = new ActiveXObject("Microsoft.XMLHTTP");
30
31			}
32
33			if(request) {
34			request.onreadystatechange = function()
35			{
36			if(request.readyState == 4) {
37			if(request.status == '200') {
38			//alert(request.responseText);
39			eval('var response = '+request.responseText+';');
40
41			if(response.result && !response.error && onResult) {
42			onResult(response.result);
43
44			} else if(response.error && !response.result && onError) {
45			onError(response.error);
46
47			}
48			}
49			}
50			};
51
52			request.open("POST", Refeed.ServerComm.callHREF, true);
53			request.send(Refeed.ServerComm.jsonEncode({method:method, params:params, id:0}));
54			}
55			},
56
57			jsonEncode: function(arg)
58			{
59			var i, o, u, v;
60
61			switch (typeof arg) {
62			case 'object':
63			if (arg) {
64			if (arg.constructor == Array) {
65			o = '';
66			for (i = 0; i < arg.length; ++i) {
67			v = Refeed.ServerComm.jsonEncode(arg[i]);
68			if (o) {
69			o += ',';
70			}
71			if (v !== u) {
72			o += v;
73			} else {
74			o += 'null,';
75			}
76			}
77			return '[' + o + ']';
78			} else if (typeof arg.toString != 'undefined') {
79			o = '';
80			for (i in arg) {
81			v = Refeed.ServerComm.jsonEncode(arg[i]);
82			if (v !== u) {
83			if (o) {
84			o += ',';
85			}
86			o += Refeed.ServerComm.jsonEncode(i) + ':' + v;
87			}
88			}
89			return '{' + o + '}';
90			} else {
91			return;
92			}
93			}
94			return 'null';
95			case 'unknown':
96			case 'undefined':
97			case 'function':
98			return u;
99			case 'string':
100			var c, i, l = arg.length, o = '"';
101			for (i = 0; i < l; i += 1) {
102			c = arg.charAt(i);
103			if (c >= ' ') {
104			if (c == '\\' \|\| c == '"') {
105			o += '\\';
106			}
107			o += c;
108			} else {
109			switch (c) {
110			case '\b':
111			o += '\\b';
112			break;
113			case '\f':
114			o += '\\f';
115			break;
116			case '\n':
117			o += '\\n';
118			break;
119			case '\r':
120			o += '\\r';
121			break;
122			case '\t':
123			o += '\\t';
124			break;
125			default:
126			c = c.charCodeAt();
127			o += '\\u00' + Math.floor(c / 16).toString(16) +
128			(c % 16).toString(16);
129			}
130			}
131			}
132			return o + '"';
133			default:
134			return String(arg);
135			}
136			}
137			};