Mercurial > hg > rlgwebd

annotate rlgterm.js @ 6:21738794755e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Put common key tables into a common file.
author John "Elwin" Edwards <elwin@sdf.org>
date Mon, 07 May 2012 13:08:24 -0700
parents ee22eb9ab009
children 826a7ced69f8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
1 /* rlgterm.js: Roguelike Gallery's driver for termemu.js */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
2
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
3 // A state machine that keeps track of polling the server.
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
4 var ajaxstate = {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
5 state: 0,
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
6 timerID: null,
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
7 clear: function () {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
8 if (this.timerID != null) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
9 window.clearTimeout(this.timerID);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
10 this.timerID = null;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
11 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
12 },
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
13 set: function (ms) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
14 this.clear();
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
15 this.timerID = window.setTimeout(getData, ms);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
16 },
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
17 gotdata: function () {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
18 this.set(100);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
19 this.state = 0;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
20 },
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
21 gotnothing: function () {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
22 if (this.state == 0) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
23 this.set(100);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
24 this.state = 1;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
25 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
26 else if (this.state == 1) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
27 this.set(300);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
28 this.state = 2;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
29 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
30 else if (this.state == 2) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
31 this.set(1000);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
32 this.state = 3;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
33 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
34 else {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
35 this.set(5000);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
36 this.state = 3;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
37 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
38 },
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
39 posted: function () {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
40 this.set(100);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
41 this.state = 0;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
42 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
43 };
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
44
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
45 function writeData(hexstr) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
46 var codenum;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
47 var codes = [];
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
48 var nc;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
49 var u8wait = 0; /* Stores bits from previous bytes of multibyte sequences. */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
50 var expect = 0; /* The number of 10------ bytes expected. */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
51 /* UTF-8 translation. */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
52 for (var i = 0; i < hexstr.length; i += 2) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
53 nc = Number("0x" + hexstr.substr(i, 2));
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
54 if (nc < 0x7F) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
55 /* 0------- */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
56 codes.push(nc);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
57 /* Any incomplete sequence will be discarded. */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
58 u8wait = 0;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
59 expect = 0;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
60 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
61 else if (nc < 0xC0) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
62 /* 10------ : part of a multibyte sequence */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
63 if (expect > 0) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
64 u8wait <<= 6;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
65 u8wait += (nc & 0x3F);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
66 expect--;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
67 if (expect == 0) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
68 codes.push(u8wait);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
69 u8wait = 0;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
70 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
71 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
72 else {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
73 /* Assume an initial byte was missed. */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
74 u8wait = 0;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
75 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
76 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
77 /* These will all discard any incomplete sequence. */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
78 else if (nc < 0xE0) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
79 /* 110----- : introduces 2-byte sequence */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
80 u8wait = (nc & 0x1F);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
81 expect = 1;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
82 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
83 else if (nc < 0xF0) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
84 /* 1110---- : introduces 3-byte sequence */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
85 u8wait = (nc & 0x0F);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
86 expect = 2;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
87 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
88 else if (nc < 0xF8) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
89 /* 11110--- : introduces 4-byte sequence */