34
38
windowpane_mode = false;
35
39
server_started = false;
39
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/* 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
42
* 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, 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.
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* server_host, server_port, server_magic.
51
function start_server(callback)
48
function start_server()
58
var callback1 = function(xhr)
60
var json_text = xhr.responseText;
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server_key = JSON.parse(json_text);
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server_started = true;
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ajax_call(callback1, "consoleservice", "start", {}, "POST");
50
if (server_started) return;
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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;
57
server_started = true;
69
60
/** Initialises the console. All apps which import console are required to
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205
var hist = new History();
209
function set_interrupt()
214
function clear_output()
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var output = document.getElementById("console_output");
217
while (output.firstChild)
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output.removeChild(output.firstChild);
223
207
/** Send a line of text to the Python server, wait for its return, and react
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208
* to its response by writing to the output box.
225
209
* Also maximize the console window if not already.
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function console_enter_line(inputbox, which)
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if (typeof(inputbox) == "string")
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var inputline = inputbox;
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var graytimer = null;
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GLOBAL_inputbox = inputbox; /* For timer */
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var inputline = inputbox.value;
241
var graytimer = setTimeout("GLOBAL_inputbox.setAttribute(\"class\", "
242
+ "\"disabled\");", 100);
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var output = document.getElementById("console_output");
247
var span = document.createElement("span");
248
span.setAttribute("class", "inputPrompt");
249
span.appendChild(document.createTextNode(">>> "));
250
output.appendChild(span);
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// Print input line itself in a span
252
var span = document.createElement("span");
253
span.setAttribute("class", "inputMsg");
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span.appendChild(document.createTextNode(inputline + "\n"));
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output.appendChild(span);
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var args = {"key": server_key, "text":inputline};
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var callback = function(xhr)
260
console_response(inputbox, graytimer, inputline, xhr.responseText);
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/* Disable the text box */
263
if (inputbox != null)
264
inputbox.setAttribute("disabled", "disabled");
265
ajax_call(callback, "consoleservice", which, args, "POST");
268
function console_response(inputbox, graytimer, inputline, responseText)
272
var res = JSON.parse(responseText);
276
alert("An internal error occurred in the python console.");
279
var output = document.getElementById("console_output");
211
function console_enter_line(inputline, which)
213
/* Start the server if it hasn't already been started */
215
var digest = hex_md5(inputline + server_magic);
216
var args = {"host": server_host, "port": server_port,
217
"digest":digest, "text":inputline};
218
var xmlhttp = ajax_call("consoleservice", which, args, "POST");
220
var res = JSON.parse(xmlhttp.responseText);
221
var output = document.getElementById("console_output");
223
var pre = document.createElement("pre");
224
pre.setAttribute("class", "inputMsg");
225
pre.appendChild(document.createTextNode(inputline + "\n"));
226
output.appendChild(pre);
280
228
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])
285
output.appendChild(document.createTextNode(res.okay + "\n"));
286
output.appendChild(span);
239
var pre = document.createElement("pre");
240
pre.setAttribute("class", "outputMsg");
241
pre.appendChild(document.createTextNode(res.okay[1] + "\n"));
242
output.appendChild(pre);
288
244
// set the prompt to >>>
289
245
var prompt = document.getElementById("console_prompt");
292
248
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);
295
260
// print out the error message (res.exc)
296
var span = document.createElement("span");
297
span.setAttribute("class", "errorMsg");
298
span.appendChild(document.createTextNode(res.exc + "\n"));
299
output.appendChild(span);
300
// set the prompt to >>>
301
var prompt = document.getElementById("console_prompt");
302
prompt.replaceChild(document.createTextNode(">>> "), prompt.firstChild);
304
else if (res.hasOwnProperty('restart') && res.hasOwnProperty('key'))
306
// Server has indicated that the console should be restarted
308
// Get the new key (host, port, magic)
309
server_key = res.key;
311
// Print a reason to explain why we'd do such a horrible thing
312
// (console timeout, server error etc.)
313
var span = document.createElement("span");
314
span.setAttribute("class", "errorMsg");
315
span.appendChild(document.createTextNode("Console Restart: " + res.restart + "\n"));
316
output.appendChild(span);
317
// set the prompt to >>>
318
var prompt = document.getElementById("console_prompt");
319
prompt.replaceChild(document.createTextNode(">>> "), prompt.firstChild);
261
var pre = document.createElement("pre");
262
pre.setAttribute("class", "errorMsg");
263
pre.appendChild(document.createTextNode(res.exc[1]));
264
output.appendChild(pre);
322
266
else if (res.hasOwnProperty('more'))
325
269
var prompt = document.getElementById("console_prompt");
326
270
prompt.replaceChild(document.createTextNode("... "), prompt.firstChild);
328
else if (res.hasOwnProperty('output'))
330
if (res.output.length > 0)
332
output.appendChild(document.createTextNode(res.output));
334
var callback = function(xhr)
336
console_response(inputbox, graytimer,
337
null, xhr.responseText);
341
var kind = "interrupt";
347
var args = {"key": server_key, "text":''};
348
ajax_call(callback, "consoleservice", kind, args, "POST");
350
// Open up the console so we can see the output
351
// FIXME: do we need to maximize here?
355
divScroll.activeScroll();
357
// Return early, so we don't re-enable the input box.
361
273
// assert res.hasOwnProperty('input')
362
274
var prompt = document.getElementById("console_prompt");
363
275
prompt.replaceChild(document.createTextNode("+++ "), prompt.firstChild);
366
if (inputbox != null)
368
/* Re-enable the text box */
369
clearTimeout(graytimer);
370
inputbox.removeAttribute("disabled");
371
inputbox.removeAttribute("class");
375
277
/* Open up the console so we can see the output */
376
278
console_maximize();
378
divScroll.activeScroll();
380
// Focus the input box by default
381
document.getElementById("console_output").focus()
382
document.getElementById("console_inputText").focus()
385
281
function catch_input(key)
441
/**** Following Code modified from ******************************************/
442
/**** http://radio.javaranch.com/pascarello/2006/08/17/1155837038219.html ***/
443
/****************************************************************************/
444
var chatscroll = new Object();
446
chatscroll.Pane = function(scrollContainerId)
448
this.scrollContainerId = scrollContainerId;
451
chatscroll.Pane.prototype.activeScroll = function()
453
var scrollDiv = document.getElementById(this.scrollContainerId);
454
var currentHeight = 0;
456
if (scrollDiv.scrollHeight > 0)
457
currentHeight = scrollDiv.scrollHeight;
459
if (objDiv.offsetHeight > 0)
460
currentHeight = scrollDiv.offsetHeight;
462
scrollDiv.scrollTop = currentHeight;
467
var divScroll = new chatscroll.Pane('console_output');