231
212
var hist = new History();
233
function set_interrupt()
238
function clear_output()
240
var output = document.getElementById("console_output");
241
while (output.firstChild)
243
output.removeChild(output.firstChild);
247
214
/** 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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216
* Also maximize the console window if not already.
251
218
function console_enter_line(inputbox, which)
255
if (typeof(inputbox) == "string")
257
var inputline = inputbox + "\n";
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/* Disable the text box */
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inputbox.setAttribute("disabled", "disabled");
265
var inputline = inputbox.value + "\n";
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var output = document.getElementById("console_output");
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var span = document.createElement("span");
271
span.setAttribute("class", "inputPrompt");
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span.appendChild(document.createTextNode(
273
document.getElementById("console_prompt").firstChild.nodeValue)
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output.appendChild(span);
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// Print input line itself in a span
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var span = document.createElement("span");
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span.setAttribute("class", "inputMsg");
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span.appendChild(document.createTextNode(inputline));
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output.appendChild(span);
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var args = {"ivle.op": "chat", "kind": which, "key": server_key, "text":inputline};
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GLOBAL_inputbox = inputbox; /* For timer */
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var inputline = inputbox.value;
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var args = {"key": server_key, "text":inputline};
223
var graytimer = setTimeout("GLOBAL_inputbox.setAttribute(\"class\", "
224
+ "\"disabled\");", 100);
283
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var callback = function(xhr)
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console_response(inputbox, inputline, xhr.responseText);
227
console_response(inputline, xhr.responseText);
228
/* Re-enable the text box */
229
clearTimeout(graytimer);
230
inputbox.removeAttribute("disabled");
231
inputbox.removeAttribute("class");
287
ajax_call(callback, "console", "service", args, "POST");
233
/* Disable the text box */
234
inputbox.setAttribute("disabled", "disabled");
235
ajax_call(callback, "consoleservice", which, args, "POST");
290
function console_response(inputbox, inputline, responseText)
238
function console_response(inputline, responseText)
294
var res = JSON.parse(responseText);
298
alert("An internal error occurred in the python console.");
240
var res = JSON.parse(responseText);
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241
var output = document.getElementById("console_output");
243
var pre = document.createElement("pre");
244
pre.setAttribute("class", "inputMsg");
245
pre.appendChild(document.createTextNode(inputline + "\n"));
246
output.appendChild(pre);
302
248
if (res.hasOwnProperty('okay'))
251
// print out the output (res.okay[0])
252
var pre = document.createElement("pre");
253
pre.setAttribute("class", "outputMsg");
254
pre.appendChild(document.createTextNode(res.okay[0]));
255
output.appendChild(pre);
256
// print out the return value (res.okay[1])
307
output.appendChild(document.createTextNode(res.okay + "\n"));
308
output.appendChild(span);
259
var pre = document.createElement("pre");
260
pre.setAttribute("class", "outputMsg");
261
pre.appendChild(document.createTextNode(res.okay[1] + "\n"));
262
output.appendChild(pre);
310
264
// set the prompt to >>>
265
var prompt = document.getElementById("console_prompt");
266
prompt.replaceChild(document.createTextNode(">>> "), prompt.firstChild);
313
268
else if (res.hasOwnProperty('exc'))
271
// print out any output that came before the error
272
if (res.exc[0].length > 0)
274
var pre = document.createElement("pre");
275
pre.setAttribute("class", "outputMsg");
276
pre.appendChild(document.createTextNode(res.exc[0]));
277
output.appendChild(pre);
316
280
// print out the error message (res.exc)
317
print_error(res.exc);
319
// set the prompt to >>>
322
else if (res.hasOwnProperty('restart') && res.hasOwnProperty('key'))
324
// Server has indicated that the console should be restarted
326
// Get the new key (host, port, magic)
327
server_key = res.key;
329
// Print a reason to explain why we'd do such a horrible thing
330
// (console timeout, server error etc.)
331
print_error("Console Restart: " + res.restart);
333
// set the prompt to >>>
281
var pre = document.createElement("pre");
282
pre.setAttribute("class", "errorMsg");
283
pre.appendChild(document.createTextNode(res.exc[1]));
284
output.appendChild(pre);
336
286
else if (res.hasOwnProperty('more'))
338
288
// Need more input, so set the prompt to ...
341
else if (res.hasOwnProperty('output'))
343
if (res.output.length > 0)
345
output.appendChild(document.createTextNode(res.output));
347
var callback = function(xhr)
349
console_response(inputbox, null, xhr.responseText);
353
var kind = "interrupt";
359
var args = {"ivle.op": "chat", "kind": kind, "key": server_key, "text":''};
360
ajax_call(callback, "console", "service", args, "POST");
362
// Open up the console so we can see the output
363
// FIXME: do we need to maximize here?
367
divScroll.activeScroll();
369
// Return early, so we don't re-enable the input box.
289
var prompt = document.getElementById("console_prompt");
290
prompt.replaceChild(document.createTextNode("... "), prompt.firstChild);
374
293
// assert res.hasOwnProperty('input')
378
if (inputbox != null)
380
/* Re-enable the text box */
381
inputbox.removeAttribute("disabled");
294
var prompt = document.getElementById("console_prompt");
295
prompt.replaceChild(document.createTextNode("+++ "), prompt.firstChild);
385
297
/* Open up the console so we can see the output */
386
298
console_maximize();
388
divScroll.activeScroll();
390
// Focus the input box by default
391
document.getElementById("console_output").focus();
392
document.getElementById("console_inputText").focus();
395
301
function catch_input(key)
451
/** Resets the console by signalling the old console to expire and starting a
454
function console_reset()
456
// FIXME: We show some feedback here - either disable input or at very
457
// least the reset button.
459
// Restart the console
466
xhr = ajax_call(null, "console", "service", {"ivle.op": "chat", "kind": "terminate", "key": server_key}, "POST");
467
console_response(null, null, xhr.responseText);
471
/** Prints an error line in the console **/
472
function print_error(error)
474
var output = document.getElementById("console_output");
477
var span = document.createElement("span");
478
span.setAttribute("class", "errorMsg");
479
span.appendChild(document.createTextNode(error + "\n"));
480
output.appendChild(span);
483
divScroll.activeScroll();
486
/** Sets the prompt text **/
487
function set_prompt(prompt_text)
489
var prompt = document.getElementById("console_prompt");
490
prompt.replaceChild(document.createTextNode(prompt_text + " "), prompt.firstChild);
493
/**** Following Code modified from ******************************************/
494
/**** http://radio.javaranch.com/pascarello/2006/08/17/1155837038219.html ***/
495
/****************************************************************************/
496
var chatscroll = new Object();
498
chatscroll.Pane = function(scrollContainerId)
500
this.scrollContainerId = scrollContainerId;
503
chatscroll.Pane.prototype.activeScroll = function()
505
var scrollDiv = document.getElementById(this.scrollContainerId);
506
var currentHeight = 0;
508
if (scrollDiv.scrollHeight > 0)
509
currentHeight = scrollDiv.scrollHeight;
510
else if (scrollDiv.offsetHeight > 0)
511
currentHeight = scrollDiv.offsetHeight;
513
scrollDiv.scrollTop = currentHeight;
518
var divScroll = new chatscroll.Pane('console_output');