38
34
windowpane_mode = false;
39
35
server_started = false;
41
39
/* Starts the console server, if it isn't already.
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* This can be called any number of times - it only starts the one server.
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* Note that this is asynchronous. It will return after signalling to start
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* the server, but there is no guarantee that it has been started yet.
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* This is a separate step from console_init, as the server is only to be
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* started once the first command is entered.
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* Does not return a value. Writes to global variables
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* server_host, server_port, server_magic.
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* server_host, and server_port.
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* \param callback Function which will be called after the server has been
49
* started. No parameters are passed. May be null.
48
function start_server()
51
function start_server(callback)
50
if (server_started) return;
51
var xhr = ajax_call("consoleservice", "start", {}, "POST");
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var json_text = xhr.responseText;
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var server_info = JSON.parse(json_text);
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server_host = server_info.host;
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server_port = server_info.port;
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server_magic = server_info.magic;
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server_started = true;
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var callback1 = function(xhr)
60
var json_text = xhr.responseText;
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server_key = JSON.parse(json_text);
62
server_started = true;
66
ajax_call(callback1, "consoleservice", "start", {}, "POST");
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69
/** Initialises the console. All apps which import console are required to
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212
var hist = new History();
214
function set_interrupt()
219
function clear_output()
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var output = document.getElementById("console_output");
222
while (output.firstChild)
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output.removeChild(output.firstChild);
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228
/** Send a line of text to the Python server, wait for its return, and react
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* to its response by writing to the output box.
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230
* Also maximize the console window if not already.
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function console_enter_line(inputline, which)
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/* Start the server if it hasn't already been started */
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var digest = hex_md5(inputline + server_magic);
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var args = {"host": server_host, "port": server_port,
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"digest":digest, "text":inputline};
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var xmlhttp = ajax_call("consoleservice", which, args, "POST");
220
var res = JSON.parse(xmlhttp.responseText);
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var output = document.getElementById("console_output");
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var pre = document.createElement("pre");
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pre.setAttribute("class", "inputMsg");
225
pre.appendChild(document.createTextNode(inputline + "\n"));
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output.appendChild(pre);
232
function console_enter_line(inputbox, which)
236
if (typeof(inputbox) == "string")
238
var inputline = inputbox;
240
var graytimer = null;
244
GLOBAL_inputbox = inputbox; /* For timer */
245
var inputline = inputbox.value;
246
var graytimer = setTimeout("GLOBAL_inputbox.setAttribute(\"class\", "
247
+ "\"disabled\");", 100);
249
var output = document.getElementById("console_output");
251
var span = document.createElement("span");
252
span.setAttribute("class", "inputMsg");
253
span.appendChild(document.createTextNode(inputline + "\n"));
254
output.appendChild(span);
256
var args = {"key": server_key, "text":inputline};
257
var callback = function(xhr)
259
console_response(inputbox, graytimer, inputline, xhr.responseText);
261
/* Disable the text box */
262
if (inputbox != null)
263
inputbox.setAttribute("disabled", "disabled");
264
ajax_call(callback, "consoleservice", which, args, "POST");
267
function console_response(inputbox, graytimer, inputline, responseText)
271
var res = JSON.parse(responseText);
275
alert("An internal error occurred in the python console.");
278
var output = document.getElementById("console_output");
228
279
if (res.hasOwnProperty('okay'))
231
// print out the output (res.okay[0])
232
var pre = document.createElement("pre");
233
pre.setAttribute("class", "outputMsg");
234
pre.appendChild(document.createTextNode(res.okay[0]));
235
output.appendChild(pre);
236
// print out the return value (res.okay[1])
239
var pre = document.createElement("pre");
240
pre.setAttribute("class", "outputMsg");
241
pre.appendChild(document.createTextNode(res.okay[1] + "\n"));
242
output.appendChild(pre);
284
output.appendChild(document.createTextNode(res.okay + "\n"));
285
output.appendChild(span);
244
287
// set the prompt to >>>
245
288
var prompt = document.getElementById("console_prompt");
248
291
else if (res.hasOwnProperty('exc'))
251
// print out any output that came before the error
252
if (res.exc[0].length > 0)
254
var pre = document.createElement("pre");
255
pre.setAttribute("class", "outputMsg");
256
pre.appendChild(document.createTextNode(res.exc[0]));
257
output.appendChild(pre);
260
294
// print out the error message (res.exc)
261
var pre = document.createElement("pre");
262
pre.setAttribute("class", "errorMsg");
263
pre.appendChild(document.createTextNode(res.exc[1]));
264
output.appendChild(pre);
295
var span = document.createElement("span");
296
span.setAttribute("class", "errorMsg");
297
span.appendChild(document.createTextNode(res.exc + "\n"));
298
output.appendChild(span);
266
300
else if (res.hasOwnProperty('more'))
269
303
var prompt = document.getElementById("console_prompt");
270
304
prompt.replaceChild(document.createTextNode("... "), prompt.firstChild);
306
else if (res.hasOwnProperty('output'))
308
if (res.output.length > 0)
310
output.appendChild(document.createTextNode(res.output));
312
var callback = function(xhr)
314
console_response(inputbox, graytimer,
315
null, xhr.responseText);
319
var kind = "interrupt";
325
var args = {"key": server_key, "text":''};
326
ajax_call(callback, "consoleservice", kind, args, "POST");
328
// Open up the console so we can see the output
329
// FIXME: do we need to maximize here?
333
divScroll.activeScroll();
335
// Return early, so we don't re-enable the input box.
273
339
// assert res.hasOwnProperty('input')
274
340
var prompt = document.getElementById("console_prompt");
275
341
prompt.replaceChild(document.createTextNode("+++ "), prompt.firstChild);
344
if (inputbox != null)
346
/* Re-enable the text box */
347
clearTimeout(graytimer);
348
inputbox.removeAttribute("disabled");
349
inputbox.removeAttribute("class");
277
353
/* Open up the console so we can see the output */
278
354
console_maximize();
356
divScroll.activeScroll();
358
// Focus the input box by default
359
document.getElementById("console_output").focus()
360
document.getElementById("console_inputText").focus()
281
363
function catch_input(key)
419
/**** Following Code modified from ******************************************/
420
/**** http://radio.javaranch.com/pascarello/2006/08/17/1155837038219.html ***/
421
/****************************************************************************/
422
var chatscroll = new Object();
424
chatscroll.Pane = function(scrollContainerId)
426
this.scrollContainerId = scrollContainerId;
429
chatscroll.Pane.prototype.activeScroll = function()
431
var scrollDiv = document.getElementById(this.scrollContainerId);
432
var currentHeight = 0;
434
if (scrollDiv.scrollHeight > 0)
435
currentHeight = scrollDiv.scrollHeight;
437
if (objDiv.offsetHeight > 0)
438
currentHeight = scrollDiv.offsetHeight;
440
scrollDiv.scrollTop = currentHeight;
445
var divScroll = new chatscroll.Pane('console_output');