RLGWebD: shterm.js annotate

annotate shterm.js @ 142:c4304f08e35b

RLGWebD: inprogress dirs have moved

author	John "Elwin" Edwards
date	Sun, 20 Oct 2013 19:26:39 -0700
parents	789c094675f4
children	c4a32007d2dc

rev	line source
1 9bef0941c6dd Add a few comments. John "Elwin" Edwards <elwin@sdf.org> parents: 0 diff changeset	1 /* shterm.js: browser-side JavaScript to handle I/O for termemu.js when it
9bef0941c6dd Add a few comments. John "Elwin" Edwards <elwin@sdf.org> parents: 0 diff changeset	2 * is running a shell via the webtty.js server.
9bef0941c6dd Add a few comments. John "Elwin" Edwards <elwin@sdf.org> parents: 0 diff changeset	3 */
9bef0941c6dd Add a few comments. John "Elwin" Edwards <elwin@sdf.org> parents: 0 diff changeset	4
58 7a50b4412fea Move credentials into the drivers. John "Elwin" Edwards <elwin@sdf.org> parents: 14 diff changeset	5 var isalive = false; // Whether the session is currently active.
14 155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	6 var nsend = 0; // The number of the next packet to send.
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	7 var nrecv = 0; // The next packet expected.
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	8 var msgQ = []; // Queue for out-of-order messages.
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	9 var conn = null; // WebSocket
13 bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 12 diff changeset	10
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	11 // 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	12 var ajaxstate = {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	13 state: 0,
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	14 timerID: null,
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	15 clear: function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	16 if (this.timerID != null) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	17 window.clearTimeout(this.timerID);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	18 this.timerID = null;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	19 }
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 set: function (ms) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	22 this.clear();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	23 this.timerID = window.setTimeout(getData, ms);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	24 },
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	25 gotdata: function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	26 this.set(100);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	27 this.state = 0;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	28 },
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	29 gotnothing: function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	30 if (this.state == 0) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	31 this.set(100);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	32 this.state = 1;
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 if (this.state == 1) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	35 this.set(300);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	36 this.state = 2;
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 else if (this.state == 2) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	39 this.set(1000);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	40 this.state = 3;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	41 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	42 else {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	43 this.set(5000);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	44 this.state = 3;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	45 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	46 },
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	47 posted: function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	48 this.set(100);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	49 this.state = 0;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	50 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	51 };
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	52
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	53 function writeData(hexstr) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	54 var codenum;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	55 var codes = [];
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	56 var nc;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	57 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	58 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	59 /* UTF-8 translation. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	60 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	61 nc = Number("0x" + hexstr.substr(i, 2));
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	62 if (nc < 0x7F) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	63 /* 0------- */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	64 codes.push(nc);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	65 /* Any incomplete sequence will be discarded. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	66 u8wait = 0;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	67 expect = 0;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	68 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	69 else if (nc < 0xC0) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	70 /* 10------ : part of a multibyte sequence */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	71 if (expect > 0) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	72 u8wait <<= 6;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	73 u8wait += (nc & 0x3F);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	74 expect--;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	75 if (expect == 0) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	76 codes.push(u8wait);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	77 u8wait = 0;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	78 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	79 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	80 else {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	81 /* Assume an initial byte was missed. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	82 u8wait = 0;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	83 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	84 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	85 /* These will all discard any incomplete sequence. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	86 else if (nc < 0xE0) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	87 /* 110----- : introduces 2-byte sequence */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	88 u8wait = (nc & 0x1F);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	89 expect = 1;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	90 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	91 else if (nc < 0xF0) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	92 /* 1110---- : introduces 3-byte sequence */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	93 u8wait = (nc & 0x0F);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	94 expect = 2;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	95 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	96 else if (nc < 0xF8) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	97 /* 11110--- : introduces 4-byte sequence */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	98 u8wait = (nc & 0x07);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	99 expect = 3;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	100 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	101 else if (nc < 0xFC) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	102 /* 111110-- : introduces 5-byte sequence */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	103 u8wait = (nc & 0x03);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	104 expect = 4;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	105 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	106 else if (nc < 0xFE) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	107 /* 1111110- : introduces 6-byte sequence */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	108 u8wait = (nc & 0x01);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	109 expect = 5;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	110 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	111 else {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	112 /* 1111111- : should never appear */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	113 u8wait = 0;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	114 expect = 0;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	115 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	116 /* Supporting all 31 bits is probably overkill... */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	117 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	118 termemu.write(codes);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	119 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	120 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	121
14 155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	122 function processMsg(response) {
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	123 if (response.t != "d" \|\| typeof(response.d) != "string")
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	124 return;
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	125 if (response.n === nrecv) {
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	126 writeData(response.d);
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	127 nrecv++;
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	128 var next;
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	129 /* msgQ must be shifted every time nrecv is incremented, but the process
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	130 * stops whenever an empty space, corresponding to an unarrived message,
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	131 * is encountered.
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	132 */
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	133 while ((next = msgQ.shift()) !== undefined) {
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	134 writeData(next.d);
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	135 nrecv++;
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	136 }
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	137 }
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	138 else if (response.n > nrecv) {
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	139 /* The current message comes after one still missing. Queue this one
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	140 * for later use.
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	141 */
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	142 debug(1, "Got packet " + response.n + ", expected " + nrecv);
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	143 msgQ[response.n - nrecv - 1] = response;
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	144 }
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	145 else {
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	146 /* This message's number was encountered previously. */
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	147 debug(1, "Discarding packet " + response.n + ", expected " + nrecv);
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	148 }
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	149 }
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	150
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	151 function getData() {
58 7a50b4412fea Move credentials into the drivers. John "Elwin" Edwards <elwin@sdf.org> parents: 14 diff changeset	152 if (!isalive)
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	153 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	154 var datareq = new XMLHttpRequest();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	155 datareq.onreadystatechange = function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	156 if (datareq.readyState == 4 && datareq.status == 200) {
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	157 var response = JSON.parse(this.responseText);
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	158 if (!response.t)
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	159 return;
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	160 else if (response.t == "E") {
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	161 if (response.c == 1) {
58 7a50b4412fea Move credentials into the drivers. John "Elwin" Edwards <elwin@sdf.org> parents: 14 diff changeset	162 isalive = false;
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	163 debug(1, "Server error: " + response.s);
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	164 }
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	165 }
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	166 else if (response.t == "n")
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	167 ajaxstate.gotnothing();
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	168 else if (response.t == "d") {
14 155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	169 processMsg(response);
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	170 ajaxstate.gotdata();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	171 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	172 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	173 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	174 };
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	175 datareq.open('GET', '/feed', true);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	176 datareq.send(null);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	177 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	178 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	179
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	180 function postResponseHandler() {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	181 if (this.readyState == 4 && this.status == 200) {
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	182 var response = JSON.parse(this.responseText);
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	183 if (!response.t \|\| response.t == "n")
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	184 return;
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	185 else if (response.t == "E") {
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	186 if (response.c == 1) {
58 7a50b4412fea Move credentials into the drivers. John "Elwin" Edwards <elwin@sdf.org> parents: 14 diff changeset	187 isalive = false;
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	188 debug(1, "Server error: " + response.s);
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	189 }
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	190 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	191 }
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	192 else if (response.t != "d")
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	193 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	194 /* It is a data message */
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	195 if (response.d) {
14 155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	196 processMsg(response);
155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	197 //debug(1, "Got packet " + response.n);
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	198 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	199 ajaxstate.posted();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	200 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	201 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	202 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	203
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	204 function sendback(str) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	205 /* For responding to terminal queries. */
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	206 if (conn) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	207 var msgObj = {"t": "d", "d": str};
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	208 conn.send(JSON.stringify(msgObj));
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	209 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	210 else {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	211 var formdata = {"t": "d", "n": nsend++, "d": str};
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	212 var datareq = new XMLHttpRequest();
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	213 datareq.onreadystatechange = postResponseHandler;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	214 datareq.open('POST', '/feed', true);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	215 datareq.send(JSON.stringify(formdata));
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	216 }
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	217 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	218 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	219
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	220 function sendkey(ev) {
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	221 if (!isalive)
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	222 return;
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	223 var keynum = ev.keyCode;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	224 var code;
70 d7eb63cd7a16 Try to get some compatibility for keys. John "Elwin" Edwards <elwin@sdf.org> parents: 58 diff changeset	225 if (keynum >= 65 && keynum <= 90) {
d7eb63cd7a16 Try to get some compatibility for keys. John "Elwin" Edwards <elwin@sdf.org> parents: 58 diff changeset	226 /* Letters. */
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	227 if (ev.ctrlKey)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	228 keynum -= 64;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	229 else if (!ev.shiftKey)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	230 keynum += 32;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	231 code = keynum.toString(16);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	232 if (code.length < 2)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	233 code = "0" + code;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	234 }
70 d7eb63cd7a16 Try to get some compatibility for keys. John "Elwin" Edwards <elwin@sdf.org> parents: 58 diff changeset	235 else if (keynum >= 48 && keynum <= 57) {
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	236 /* The number row. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	237 if (ev.shiftKey) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	238 code = numShifts[keynum - 48].toString(16);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	239 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	240 else {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	241 code = keynum.toString(16);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	242 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	243 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	244 else if (keynum in keyHexCodes) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	245 if (ev.shiftKey)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	246 code = keyHexCodes[keynum][1];
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	247 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	248 code = keyHexCodes[keynum][0];
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	249 }
70 d7eb63cd7a16 Try to get some compatibility for keys. John "Elwin" Edwards <elwin@sdf.org> parents: 58 diff changeset	250 else if (keynum >= 16 && keynum <= 20) {
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	251 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	252 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	253 else {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	254 debug(1, "Ignoring keycode " + keynum);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	255 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	256 }
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	257 ev.preventDefault();
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	258 if (conn) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	259 var msgObj = {"t": "d", "d": code};
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	260 conn.send(JSON.stringify(msgObj));
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	261 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	262 else {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	263 var formdata = {"t": "d", "n": nsend++, "d": code};
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	264 var datareq = new XMLHttpRequest();
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	265 datareq.onreadystatechange = postResponseHandler;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	266 datareq.open('POST', '/feed', true);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	267 datareq.send(JSON.stringify(formdata));
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	268 }
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	269 //dkey(code);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	270 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	271 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	272
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	273 var charshifts = { '-': "5f", '=': "2b", '[': "7b", ']': "7d", '\\': "7c",
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	274 ';': "3a", '\'': "22", ',': "3c", '.': "3e", '/': "3f", '`': "7e"
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	275 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	276
76 a497ecd116d9 Improvements to the keyboard. John "Elwin" Edwards <elwin@sdf.org> parents: 70 diff changeset	277 var kpkeys = { "KP1": "1b4f46", "KP2": "1b4f42", "KP3": "1b5b367e",
a497ecd116d9 Improvements to the keyboard. John "Elwin" Edwards <elwin@sdf.org> parents: 70 diff changeset	278 "KP4": "1b4f44", "KP5": "1b5b45", "KP6": "1b4f43",
a497ecd116d9 Improvements to the keyboard. John "Elwin" Edwards <elwin@sdf.org> parents: 70 diff changeset	279 "KP7": "1b4f48", "KP8": "1b4f41", "KP9": "1b5b357e" };
a497ecd116d9 Improvements to the keyboard. John "Elwin" Edwards <elwin@sdf.org> parents: 70 diff changeset	280
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	281 function vkey(c) {
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	282 if (!isalive)
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	283 return;
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	284 var keystr;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	285 if (c.match(/^[a-z]$/)) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	286 if (termemu.ctrlp()) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	287 var n = c.charCodeAt(0) - 96;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	288 keystr = n.toString(16);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	289 if (keystr.length < 2)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	290 keystr = "0" + keystr;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	291 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	292 else if (termemu.shiftp())
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	293 keystr = c.toUpperCase().charCodeAt(0).toString(16);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	294 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	295 keystr = c.charCodeAt(0).toString(16);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	296 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	297 else if (c.match(/^[0-9]$/)) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	298 if (termemu.shiftp())
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	299 keystr = numShifts[c.charCodeAt(0) - 48].toString(16);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	300 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	301 keystr = c.charCodeAt(0).toString(16);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	302 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	303 else if (c == '\n')
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	304 keystr = "0a";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	305 else if (c == '\t')
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	306 keystr = "09";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	307 else if (c == '\b')
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	308 keystr = "08";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	309 else if (c == ' ')
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	310 keystr = "20";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	311 else if (c in charshifts) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	312 if (termemu.shiftp())
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	313 keystr = charshifts[c];
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	314 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	315 keystr = c.charCodeAt(0).toString(16);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	316 }
76 a497ecd116d9 Improvements to the keyboard. John "Elwin" Edwards <elwin@sdf.org> parents: 70 diff changeset	317 else if (c in kpkeys) {
a497ecd116d9 Improvements to the keyboard. John "Elwin" Edwards <elwin@sdf.org> parents: 70 diff changeset	318 keystr = kpkeys[c];
a497ecd116d9 Improvements to the keyboard. John "Elwin" Edwards <elwin@sdf.org> parents: 70 diff changeset	319 }
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	320 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	321 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	322 //writeData("Sending " + keystr);
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	323 if (conn) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	324 var msgObj = {"t": "d", "d": keystr};
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	325 conn.send(JSON.stringify(msgObj));
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	326 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	327 else {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	328 var formdata = {"t": "d", "n": nsend++, "d": keystr};
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	329 var datareq = new XMLHttpRequest();
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	330 datareq.onreadystatechange = postResponseHandler;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	331 datareq.open('POST', '/feed', true);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	332 datareq.send(JSON.stringify(formdata));
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	333 }
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	334 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	335 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	336
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	337 function setup() {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	338 keyHexCodes.init();
9 826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	339 termemu.init("termwrap", 24, 80);
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	340 setTitle("Not connected.");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	341 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	342 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	343
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	344 function toggleshift() {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	345 termemu.toggleshift();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	346 keydiv = document.getElementById("shiftkey");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	347 if (termemu.shiftp())
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	348 keydiv.className = "keysel";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	349 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	350 keydiv.className = "key";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	351 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	352 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	353
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	354 function togglectrl() {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	355 termemu.togglectrl();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	356 keydiv = document.getElementById("ctrlkey");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	357 if (termemu.ctrlp())
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	358 keydiv.className = "keysel";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	359 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	360 keydiv.className = "key";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	361 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	362 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	363
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	364 function loginWS(h, w) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	365 if (conn)
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	366 return;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	367 var sockurl = "ws://" + window.location.host + "/sock?w=" + w + "&h=" + h;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	368 conn = new WebSocket(sockurl);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	369 conn.onopen = function (event) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	370 isalive = true;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	371 setTitle("Logged in");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	372 debug(1, "Logged in via WebSocket");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	373 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	374 conn.onmessage = function (event) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	375 var msgObj = JSON.parse(event.data);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	376 if (msgObj.t == 'l') {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	377 termemu.resize(msgObj.h, msgObj.w);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	378 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	379 else if (msgObj.t == 'd') {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	380 debug(0, msgObj.d);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	381 writeData(msgObj.d);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	382 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	383 else if (msgObj.t == 'q') {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	384 debug(0, "Quit message!");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	385 conn.close();
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	386 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	387 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	388 conn.onclose = function (event) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	389 conn = null;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	390 isalive = false;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	391 debug(1, "WebSocket connection closed.");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	392 setTitle("Not connected.");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	393 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	394 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	395
9 826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	396 function login(h, w) {
58 7a50b4412fea Move credentials into the drivers. John "Elwin" Edwards <elwin@sdf.org> parents: 14 diff changeset	397 if (isalive)
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	398 return;
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	399 if (window.WebSocket) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	400 loginWS(h, w);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	401 return;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	402 }
13 bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 12 diff changeset	403 params = {"login": true, "h": h, "w": w};
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	404 var req = new XMLHttpRequest();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	405 req.onreadystatechange = function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	406 if (req.readyState == 4 && req.status == 200) {
10 d051aad3e95f webtty: begin experimenting with JSON protocol. John "Elwin" Edwards <elwin@sdf.org> parents: 9 diff changeset	407 var logindict = JSON.parse(req.responseText);
d051aad3e95f webtty: begin experimenting with JSON protocol. John "Elwin" Edwards <elwin@sdf.org> parents: 9 diff changeset	408 if (logindict.login) {
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	409 /* Success */
10 d051aad3e95f webtty: begin experimenting with JSON protocol. John "Elwin" Edwards <elwin@sdf.org> parents: 9 diff changeset	410 termemu.resize(logindict.h, logindict.w);
58 7a50b4412fea Move credentials into the drivers. John "Elwin" Edwards <elwin@sdf.org> parents: 14 diff changeset	411 isalive = true;
13 bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 12 diff changeset	412 nsend = 0;
14 155f3c104759 shterm.js: Client-side message ordering John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	413 nrecv = 0;
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	414 setTitle("Logged in");
10 d051aad3e95f webtty: begin experimenting with JSON protocol. John "Elwin" Edwards <elwin@sdf.org> parents: 9 diff changeset	415 debug(1, "Logged in with id " + logindict.id);
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	416 getData();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	417 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	418 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	419 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	420 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	421 };
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	422 req.open('POST', '/login', true);
13 bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 12 diff changeset	423 req.send(JSON.stringify(params));
bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 12 diff changeset	424 //req.send("login=login&h=" + String(h) + "&w=" + String(w));
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	425 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	426 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	427
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	428 function stop() {
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	429 if (conn) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	430 conn.close();
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	431 return;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 76 diff changeset	432 }
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	433 var req = new XMLHttpRequest();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	434 req.onreadystatechange = function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	435 if (req.readyState == 4 && req.status == 200) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	436 /* Figure out whether or not it worked. */
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	437 /* FIXME the server might respond with output. */
58 7a50b4412fea Move credentials into the drivers. John "Elwin" Edwards <elwin@sdf.org> parents: 14 diff changeset	438 isalive = false;
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	439 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	440 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	441 };
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	442 req.open('POST', '/feed', true);
13 bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 12 diff changeset	443 req.send(JSON.stringify({"t": "q", "n": nsend++}));
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	444 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	445 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	446
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	447 function setTitle(tstr) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	448 var titlespan = document.getElementById("ttitle");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	449 var tnode = document.createTextNode(tstr);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	450 if (titlespan.childNodes.length == 0)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	451 titlespan.appendChild(tnode);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	452 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	453 titlespan.replaceChild(tnode, titlespan.childNodes[0]);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	454 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	455 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	456
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	457 function debug(level, msg) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	458 if (level < debugSuppress)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	459 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	460 var msgdiv = document.createElement("div");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	461 var msgtext = document.createTextNode(msg);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	462 msgdiv.appendChild(msgtext);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	463 document.getElementById("debug").appendChild(msgdiv);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	464 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	465 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	466
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	467 /* This should be a termemu method. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	468 function textsize(larger) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	469 var cssSize = document.getElementById("term").style.fontSize;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	470 if (!cssSize)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	471 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	472 var match = cssSize.match(/\d*/);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	473 if (!match)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	474 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	475 var csize = Number(match[0]);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	476 var nsize;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	477 if (larger) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	478 if (csize >= 48)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	479 nsize = 48;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	480 else if (csize >= 20)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	481 nsize = csize + 4;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	482 else if (csize >= 12)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	483 nsize = csize + 2;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	484 else if (csize >= 8)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	485 nsize = csize + 1;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	486 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	487 nsize = 8;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	488 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	489 else {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	490 if (csize <= 8)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	491 nsize = 8;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	492 else if (csize <= 12)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	493 nsize = csize - 1;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	494 else if (csize <= 20)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	495 nsize = csize - 2;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	496 else if (csize <= 48)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	497 nsize = csize - 4;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	498 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	499 nsize = 48;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	500 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	501 document.getElementById("term").style.fontSize = nsize.toString() + "px";
9 826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	502 termemu.fixsize();
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	503 debug(1, "Changing font size to " + nsize.toString());
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	504 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	505 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	506
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	507 function bell(on) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	508 var imgnode = document.getElementById("bell");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	509 if (on) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	510 imgnode.style.visibility = "visible";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	511 window.setTimeout(bell, 1500, false);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	512 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	513 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	514 imgnode.style.visibility = "hidden";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	515 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	516 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	517
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	518 function dkey(codestr) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	519 var dstr = "Keystring: ";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	520 for (var i = 0; i < codestr.length; i += 2) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	521 code = Number("0x" + codestr.substr(i, 2));
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	522 if (code < 32 \|\| (code >= 127 && code < 160))
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	523 dstr += "\\x" + code.toString(16);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	524 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	525 dstr += String.fromCharCode(code);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	526 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	527 debug(1, dstr);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	528 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	529 }