~azzar1/unity/add-show-desktop-key

332 by mattgiuca
console plugin: Now presents minimize/maximize buttons, allowing itself to be
1
/* IVLE - Informatics Virtual Learning Environment
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 * Copyright (C) 2007-2008 The University of Melbourne
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 *
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 * Module: Console (Client-side JavaScript)
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 * Author: Tom Conway, Matt Giuca
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 * Date: 30/1/2008
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 */
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432 by drtomc
usrmgt: more work on this. Still some work to go.
23
var server_key;
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
24
339 by mattgiuca
console:
25
/* Begin religious debate (tabs vs spaces) here: */
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/* (This string will be inserted in the console when the user presses the Tab
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 * key) */
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TAB_STRING = "    ";
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332 by mattgiuca
console plugin: Now presents minimize/maximize buttons, allowing itself to be
30
/* Console DOM objects */
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console_body = null;
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console_filler = null;
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339 by mattgiuca
console:
34
windowpane_mode = false;
343 by mattgiuca
console: Small refactoring of how server starts up. Currently does not affect
35
server_started = false;
339 by mattgiuca
console:
36
628 by drtomc
console: Add output based interrupt. This allows users to interrupt long
37
interrupted = false;
38
343 by mattgiuca
console: Small refactoring of how server starts up. Currently does not affect
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.
559 by mattgiuca
Major JavaScript refactor: util.ajax_call is now asynchronous, not
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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.
343 by mattgiuca
console: Small refactoring of how server starts up. Currently does not affect
43
 * 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
432 by drtomc
usrmgt: more work on this. Still some work to go.
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 * server_host, and server_port.
559 by mattgiuca
Major JavaScript refactor: util.ajax_call is now asynchronous, not
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 *
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 * \param callback Function which will be called after the server has been
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 * started. No parameters are passed. May be null.
217 by mattgiuca
Console: Python code generates a minimal document with a DIV and links to
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 */
559 by mattgiuca
Major JavaScript refactor: util.ajax_call is now asynchronous, not
51
function start_server(callback)
217 by mattgiuca
Console: Python code generates a minimal document with a DIV and links to
52
{
559 by mattgiuca
Major JavaScript refactor: util.ajax_call is now asynchronous, not
53
    if (server_started)
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    {
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        callback();
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        return;
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    }
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    var callback1 = function(xhr)
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        {
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            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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            if (callback != null)
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                callback();
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        }
872 by dcoles
Console: Allow console to be started with a set working directory (defaults to
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    //var current_path;
994 by wagrant
console.js: Don't crash the console by passing a working dir that doesn't exist.
68
    if((typeof(current_path) != 'undefined') && current_file)
872 by dcoles
Console: Allow console to be started with a set working directory (defaults to
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    {
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        // We have a current_path - give a suggestion to the server
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        var path;
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        if (current_file.isdir)
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        {
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            // Browser
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            path = path_join("/home", current_path);
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        }
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        else
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        {
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            // Editor - need to chop off filename
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            var tmp_path = current_path.split('/');
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            tmp_path.pop();
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            path = path_join("/home", tmp_path.join('/'));
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        }
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        ajax_call(callback1, "consoleservice", "start", {"startdir": path}, "POST");
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    }
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    else
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    {
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        // No current_path - let the server decide
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        ajax_call(callback1, "consoleservice", "start", {}, "POST");
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    }
217 by mattgiuca
Console: Python code generates a minimal document with a DIV and links to
91
}
92
332 by mattgiuca
console plugin: Now presents minimize/maximize buttons, allowing itself to be
93
/** Initialises the console. All apps which import console are required to
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 * call this function.
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 * Optional "windowpane" (bool), if true, will cause the console to go into
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 * "window pane" mode which will allow it to be opened and closed, and float
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 * over the page.
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 * (Defaults to closed).
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 */
331 by mattgiuca
Console: Configured console to display properly as a "floating" window in the
100
function console_init(windowpane)
217 by mattgiuca
Console: Python code generates a minimal document with a DIV and links to
101
{
331 by mattgiuca
Console: Configured console to display properly as a "floating" window in the
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    /* Set up the console as a floating pane */
332 by mattgiuca
console plugin: Now presents minimize/maximize buttons, allowing itself to be
103
    console_body = document.getElementById("console_body");
362 by mattgiuca
console: Automatically focus input box when starting console app, or when
104
    /* If there is no console body, don't worry.
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     * (This lets us import console.js even on pages without a console box */
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    if (console_body == null) return;
332 by mattgiuca
console plugin: Now presents minimize/maximize buttons, allowing itself to be
107
    console_filler = document.getElementById("console_filler");
331 by mattgiuca
Console: Configured console to display properly as a "floating" window in the
108
    if (windowpane)
339 by mattgiuca
console:
109
    {
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        windowpane_mode = true;
332 by mattgiuca
console plugin: Now presents minimize/maximize buttons, allowing itself to be
111
        console_minimize();
339 by mattgiuca
console:
112
    }
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
113
}
114
332 by mattgiuca
console plugin: Now presents minimize/maximize buttons, allowing itself to be
115
/** Hide the main console panel, so the console minimizes to just an input box
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 *  at the page bottom. */
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function console_minimize()
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{
339 by mattgiuca
console:
119
    if (!windowpane_mode) return;
332 by mattgiuca
console plugin: Now presents minimize/maximize buttons, allowing itself to be
120
    console_body.setAttribute("class", "windowpane minimal");
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    console_filler.setAttribute("class", "windowpane minimal");
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}
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/** Show the main console panel, so it enlarges out to its full size.
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 */
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function console_maximize()
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{
339 by mattgiuca
console:
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    if (!windowpane_mode) return;
332 by mattgiuca
console plugin: Now presents minimize/maximize buttons, allowing itself to be
129
    console_body.setAttribute("class", "windowpane maximal");
130
    console_filler.setAttribute("class", "windowpane maximal");
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}
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350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
133
/* current_text is the string currently on the command line.
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 * If non-empty, it will be stored at the bottom of the history.
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 */
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function historyUp(current_text)
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
137
{
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
138
    /* Remember the changes made to this item */
139
    this.edited[this.cursor] = current_text;
140
    if (this.cursor > 0)
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
141
    {
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        this.cursor--;
143
    }
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
144
    this.earliestCursor = this.cursor;
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
145
}
146
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
147
function historyDown(current_text)
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
148
{
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
149
    /* Remember the changes made to this item */
150
    this.edited[this.cursor] = current_text;
151
    if (this.cursor < this.items.length - 1)
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
152
    {
153
        this.cursor++;
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    }
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}
156
157
function historyCurr()
158
{
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
159
    return this.edited[this.cursor];
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
160
}
161
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
162
function historySubmit(text)
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
163
{
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
164
    /* Copy the selected item's "edited" version over the permanent version of
165
     * the last item. */
166
    this.items[this.items.length-1] = text;
167
    /* Add a new blank item */
168
    this.items[this.items.length] = "";
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    this.cursor = this.items.length-1;
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    /* Blow away all the edited versions, replacing them with the existing
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     * items set.
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     * Not the whole history - just start from the earliest edited one.
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     * (This avoids slowdown over extended usage time).
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     */
175
    for (var i=this.earliestCursor; i<=this.cursor; i++)
176
        this.edited[i] = this.items[i];
177
    this.earliestCursor = this.cursor;
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
178
}
179
180
function historyShow()
181
{
182
    var res = "";
183
    for (var i = 0; i < this.items.length; i++)
184
    {
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        if (i == this.cursor)
186
        {
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            res += "["
188
        }
189
        res += this.items[i].toString();
190
        if (i == this.cursor)
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        {
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            res += "]"
193
        }
194
        res += " "
195
    }
196
    if (this.cursor == this.items.length)
197
    {
198
        res += "[]";
199
    }
200
    return res;
201
}
202
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
203
/* How history works
204
 * This is a fairly complex mechanism due to complications when editing
205
 * history items. We store two arrays. "items" is the permanent history of
206
 * each item. "edited" is a "volatile" version of items - the edits made to
207
 * the history between now and last time you hit "enter".
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 * This is because the user can go back and edit any of the previous items,
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 * and the edits are remembered until they hit enter.
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 *
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 * When hitting enter, the "edited" version of the currently selected item
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 * replaces the "item" version of the last item in the list.
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 * Then a new blank item is created, for the new line of input.
214
 * Lastly, all the "edited" versions are replaced with their stable versions.
215
 *
216
 * Cursor never points to an invalid location.
217
 */
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
218
function History()
219
{
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
220
    this.items = new Array("");
221
    this.edited = new Array("");
222
    this.cursor = 0;
223
    this.earliestCursor = 0;
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
224
    this.up = historyUp;
225
    this.down = historyDown;
226
    this.curr = historyCurr;
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
227
    this.submit = historySubmit;
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
228
    this.show = historyShow;
229
}
230
231
var hist = new History();
232
628 by drtomc
console: Add output based interrupt. This allows users to interrupt long
233
function set_interrupt()
234
{
235
    interrupted = true;
236
}
237
238
function clear_output()
239
{
240
    var output = document.getElementById("console_output");
241
    while (output.firstChild)
242
    {
243
        output.removeChild(output.firstChild);
244
    }
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}
246
333 by mattgiuca
console.js: enter_line now accepts the line as an argument instead of reading
247
/** Send a line of text to the Python server, wait for its return, and react
248
 * to its response by writing to the output box.
249
 * Also maximize the console window if not already.
250
 */
590 by mattgiuca
console: Added disabling of the input box when waiting for a response from the
251
function console_enter_line(inputbox, which)
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
252
{
628 by drtomc
console: Add output based interrupt. This allows users to interrupt long
253
    interrupted = false;
254
593 by mattgiuca
console.js: Fixed not working when you pass a string to console_enter_line
255
    if (typeof(inputbox) == "string")
256
    {
257
        var inputline = inputbox;
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        inputbox = null;
259
        var graytimer = null;
260
    }
261
    else
262
    {
263
        GLOBAL_inputbox = inputbox;     /* For timer */
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        var inputline = inputbox.value;
265
        var graytimer = setTimeout("GLOBAL_inputbox.setAttribute(\"class\", "
266
            + "\"disabled\");", 100);
267
    }
618 by drtomc
console: Get rid of all the extra pre elements.
268
    var output = document.getElementById("console_output");
269
    {
654 by mattgiuca
console.js|css:
270
        // Print ">>>" span
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        var span = document.createElement("span");
272
        span.setAttribute("class", "inputPrompt");
273
        span.appendChild(document.createTextNode(">>> "));
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        output.appendChild(span);
275
        // Print input line itself in a span
618 by drtomc
console: Get rid of all the extra pre elements.
276
        var span = document.createElement("span");
277
        span.setAttribute("class", "inputMsg");
278
        span.appendChild(document.createTextNode(inputline + "\n"));
279
        output.appendChild(span);
280
    }
432 by drtomc
usrmgt: more work on this. Still some work to go.
281
    var args = {"key": server_key, "text":inputline};
559 by mattgiuca
Major JavaScript refactor: util.ajax_call is now asynchronous, not
282
    var callback = function(xhr)
283
        {
598 by drtomc
console: send output back to the browser progressively.
284
            console_response(inputbox, graytimer, inputline, xhr.responseText);
559 by mattgiuca
Major JavaScript refactor: util.ajax_call is now asynchronous, not
285
        }
590 by mattgiuca
console: Added disabling of the input box when waiting for a response from the
286
    /* Disable the text box */
593 by mattgiuca
console.js: Fixed not working when you pass a string to console_enter_line
287
    if (inputbox != null)
288
        inputbox.setAttribute("disabled", "disabled");
559 by mattgiuca
Major JavaScript refactor: util.ajax_call is now asynchronous, not
289
    ajax_call(callback, "consoleservice", which, args, "POST");
290
}
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
291
598 by drtomc
console: send output back to the browser progressively.
292
function console_response(inputbox, graytimer, inputline, responseText)
559 by mattgiuca
Major JavaScript refactor: util.ajax_call is now asynchronous, not
293
{
646 by drtomc
console: - work around the ff bug with the cursor.
294
    try
295
    {
296
        var res = JSON.parse(responseText);
297
    }
298
    catch (e)
299
    {
300
        alert("An internal error occurred in the python console.");
301
        return;
302
    }
328 by mattgiuca
console: Renamed HTML element IDs to prefix "console_".
303
    var output = document.getElementById("console_output");
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
304
    if (res.hasOwnProperty('okay'))
305
    {
991 by dcoles
Console: Some improvements to the python console code - most notably the
306
        // Success!
307
        if (res.okay)
308
        {
309
            output.appendChild(document.createTextNode(res.okay + "\n"));
310
            output.appendChild(span);
311
        }
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
312
        // set the prompt to >>>
991 by dcoles
Console: Some improvements to the python console code - most notably the
313
        set_prompt(">>>");
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
314
    }
315
    else if (res.hasOwnProperty('exc'))
316
    {
317
        // Failure!
318
        // print out the error message (res.exc)
991 by dcoles
Console: Some improvements to the python console code - most notably the
319
        print_error(res.exc);
320
        
654 by mattgiuca
console.js|css:
321
        // set the prompt to >>>
991 by dcoles
Console: Some improvements to the python console code - most notably the
322
        set_prompt(">>>");
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
323
    }
737 by dcoles
Console: The consoleservice is now able to work out when a console has timed
324
    else if (res.hasOwnProperty('restart') && res.hasOwnProperty('key'))
325
    {
326
        // Server has indicated that the console should be restarted
327
        
328
        // Get the new key (host, port, magic)
329
        server_key = res.key;
330
331
        // Print a reason to explain why we'd do such a horrible thing
332
        // (console timeout, server error etc.)
991 by dcoles
Console: Some improvements to the python console code - most notably the
333
        print_error("Console Restart: " + res.restart);
334
        
737 by dcoles
Console: The consoleservice is now able to work out when a console has timed
335
        // set the prompt to >>>
991 by dcoles
Console: Some improvements to the python console code - most notably the
336
        set_prompt(">>>");
737 by dcoles
Console: The consoleservice is now able to work out when a console has timed
337
    }
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
338
    else if (res.hasOwnProperty('more'))
339
    {
340
        // Need more input, so set the prompt to ...
991 by dcoles
Console: Some improvements to the python console code - most notably the
341
        set_prompt("...");
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
342
    }
598 by drtomc
console: send output back to the browser progressively.
343
    else if (res.hasOwnProperty('output'))
344
    {
599 by drtomc
console: improve end of line handling.
345
        if (res.output.length > 0)
598 by drtomc
console: send output back to the browser progressively.
346
        {
618 by drtomc
console: Get rid of all the extra pre elements.
347
            output.appendChild(document.createTextNode(res.output));
598 by drtomc
console: send output back to the browser progressively.
348
        }
349
        var callback = function(xhr)
350
            {
351
                console_response(inputbox, graytimer,
352
                                 null, xhr.responseText);
353
            }
628 by drtomc
console: Add output based interrupt. This allows users to interrupt long
354
        if (interrupted)
355
        {
356
            var kind = "interrupt";
357
        }
358
        else
359
        {
360
            var kind = "chat";
361
        }
598 by drtomc
console: send output back to the browser progressively.
362
        var args = {"key": server_key, "text":''};
628 by drtomc
console: Add output based interrupt. This allows users to interrupt long
363
        ajax_call(callback, "consoleservice", kind, args, "POST");
623 by drtomc
console: fix a minor styling flaw.
364
629 by drtomc
console: a couple of minor tweaks arising from conversation with Adrian.
365
        // Open up the console so we can see the output
366
        // FIXME: do we need to maximize here?
623 by drtomc
console: fix a minor styling flaw.
367
        console_maximize();
629 by drtomc
console: a couple of minor tweaks arising from conversation with Adrian.
368
623 by drtomc
console: fix a minor styling flaw.
369
        /* Auto-scrolling */
370
        divScroll.activeScroll();
371
598 by drtomc
console: send output back to the browser progressively.
372
        // Return early, so we don't re-enable the input box.
373
        return;
374
    }
991 by dcoles
Console: Some improvements to the python console code - most notably the
375
    else
376
    {
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
377
        // assert res.hasOwnProperty('input')
991 by dcoles
Console: Some improvements to the python console code - most notably the
378
        set_prompt("...");
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
379
    }
598 by drtomc
console: send output back to the browser progressively.
380
381
    if (inputbox != null)
382
    {
383
        /* Re-enable the text box */
384
        clearTimeout(graytimer);
385
        inputbox.removeAttribute("disabled");
386
        inputbox.removeAttribute("class");
628 by drtomc
console: Add output based interrupt. This allows users to interrupt long
387
        interrupted = false;
598 by drtomc
console: send output back to the browser progressively.
388
    }
389
332 by mattgiuca
console plugin: Now presents minimize/maximize buttons, allowing itself to be
390
    /* Open up the console so we can see the output */
391
    console_maximize();
616 by agdimech
/console/console.js: Added dynamic scrolling for the console.
392
    /* Auto-scrolling */
393
    divScroll.activeScroll();
629 by drtomc
console: a couple of minor tweaks arising from conversation with Adrian.
394
395
    // Focus the input box by default
991 by dcoles
Console: Some improvements to the python console code - most notably the
396
    document.getElementById("console_output").focus();
397
    document.getElementById("console_inputText").focus();
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
398
}
399
400
function catch_input(key)
401
{
328 by mattgiuca
console: Renamed HTML element IDs to prefix "console_".
402
    var inp = document.getElementById('console_inputText');
339 by mattgiuca
console:
403
    switch (key)
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
404
    {
339 by mattgiuca
console:
405
    case 9:                 /* Tab key */
406
        var selstart = inp.selectionStart;
407
        var selend = inp.selectionEnd;
408
        if (selstart == selend)
409
        {
410
            /* No selection, just a carat. Insert a tab here. */
411
            inp.value = inp.value.substr(0, selstart)
412
                + TAB_STRING + inp.value.substr(selstart);
413
        }
414
        else
415
        {
416
            /* Text is selected. Just indent the whole line
417
             * by inserting a tab at the start */
418
            inp.value = TAB_STRING + inp.value;
419
        }
420
        /* Update the selection so the same characters as before are selected
421
         */
422
        inp.selectionStart = selstart + TAB_STRING.length;
423
        inp.selectionEnd = inp.selectionStart + (selend - selstart);
424
        /* Cancel the event, so the TAB key doesn't move focus away from this
425
         * box */
426
        return false;
427
        /* Note: If it happens that some browsers don't support event
428
         * cancelling properly, this hack might work instead:
429
        setTimeout(
430
            "document.getElementById('console_inputText').focus()",
431
            0);
432
         */
433
        break;
434
    case 13:                /* Enter key */
559 by mattgiuca
Major JavaScript refactor: util.ajax_call is now asynchronous, not
435
        var callback = function()
436
        {
437
            /* Send the line of text to the server */
590 by mattgiuca
console: Added disabling of the input box when waiting for a response from the
438
            console_enter_line(inp, "chat");
559 by mattgiuca
Major JavaScript refactor: util.ajax_call is now asynchronous, not
439
            hist.submit(inp.value);
440
            inp.value = hist.curr();
441
        }
442
        /* Start the server if it hasn't already been started */
443
        start_server(callback);
339 by mattgiuca
console:
444
        break;
445
    case 38:                /* Up arrow */
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
446
        hist.up(inp.value);
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
447
        inp.value = hist.curr();
339 by mattgiuca
console:
448
        break;
449
    case 40:                /* Down arrow */
350 by mattgiuca
media/console/console.js: Rewrote console history storage, browsing, and
450
        hist.down(inp.value);
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
451
        inp.value = hist.curr();
339 by mattgiuca
console:
452
        break;
276 by mattgiuca
Console now runs inside IVLE (without requiring an IFRAME). The separate
453
    }
217 by mattgiuca
Console: Python code generates a minimal document with a DIV and links to
454
}
616 by agdimech
/console/console.js: Added dynamic scrolling for the console.
455
991 by dcoles
Console: Some improvements to the python console code - most notably the
456
/** Resets the console by signalling the old console to expire and starting a 
457
 * new one.
458
 */
459
function console_reset()
460
{
461
    // FIXME: We show some feedback here - either disable input or at very 
462
    // least the reset button.
463
464
    // Restart the console
465
    if(!server_started)
466
    {
467
        start_server(null);
468
    }
469
    else
470
    {
471
        xhr = ajax_call(null, "consoleservice", "restart", {"key": server_key}, "POST");
472
        console_response(null, null, null, xhr.responseText);
473
    }
474
}
475
476
/** Prints an error line in the console **/
477
function print_error(error)
478
{ 
479
    var output = document.getElementById("console_output");
480
  
481
    // Create text block
482
    var span = document.createElement("span");
483
    span.setAttribute("class", "errorMsg");
484
    span.appendChild(document.createTextNode(error + "\n"));
485
    output.appendChild(span);
486
487
    // Autoscroll
488
    divScroll.activeScroll();
489
}
490
491
/** Sets the prompt text **/
492
function set_prompt(prompt_text)
493
{
494
    var prompt = document.getElementById("console_prompt");
495
    prompt.replaceChild(document.createTextNode(prompt_text + " "), prompt.firstChild);
496
}
497
616 by agdimech
/console/console.js: Added dynamic scrolling for the console.
498
/**** Following Code modified from ******************************************/
499
/**** http://radio.javaranch.com/pascarello/2006/08/17/1155837038219.html ***/
500
/****************************************************************************/
501
var chatscroll = new Object();
502
503
chatscroll.Pane = function(scrollContainerId)
504
{
505
    this.scrollContainerId = scrollContainerId;
506
}
507
508
chatscroll.Pane.prototype.activeScroll = function()
509
{
510
    var scrollDiv = document.getElementById(this.scrollContainerId);
511
    var currentHeight = 0;
512
        
513
    if (scrollDiv.scrollHeight > 0)
514
        currentHeight = scrollDiv.scrollHeight;
991 by dcoles
Console: Some improvements to the python console code - most notably the
515
    else if (scrollDiv.offsetHeight > 0)
516
        currentHeight = scrollDiv.offsetHeight;
616 by agdimech
/console/console.js: Added dynamic scrolling for the console.
517
518
    scrollDiv.scrollTop = currentHeight;
519
520
    scrollDiv = null;
521
}
522
523
var divScroll = new chatscroll.Pane('console_output');