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Tweaked cursor positioning code, and added explicit no-cache headers to our

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responses. This might help with reported IE6 problems.


git-svn-id: https://shellinabox.googlecode.com/svn/trunk@81 0da03de8-d603-11dd-86c2-0f8696b7b6f9
This commit is contained in:
zodiac 2009-03-19 22:10:48 +00:00
parent e1863d0a47
commit cdd4ae34eb
5 changed files with 53 additions and 13 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2009-03-19 Markus Gutschke <markus@shellinabox.com>
* Fixed cursor positioning. Hopefully, more browsers will be happy
with this, now.
* Explicitly added no-cache headers to our responses. This might help
with the IE6 problems.
2009-03-17 Markus Gutschke <markus@shellinabox.com>
* Allow root to bind to privileged port.

2
config.h
View file

@ -95,7 +95,7 @@
#define STDC_HEADERS 1
/* Most recent revision number in the version control system */
#define VCS_REVISION "80"
#define VCS_REVISION "81"
/* Version number of package */
#define VERSION "2.4"

1
shellinabox/shellinaboxd.c
View file

@ -225,6 +225,7 @@ static int completePendingRequest(struct Session *session,
"Content-Type: application/json; "
"charset=utf-8\r\n"
"Content-Length: %ld\r\n"
"Cache-Control: no-cache\r\n"
"\r\n"
"%s",
(long)strlen(json),

7
shellinabox/styles.css
View file

@ -20,10 +20,15 @@
padding: 1px;
}
#vt100 #console, #vt100 #alt_console, #vt100 #cursor {
#vt100 #console, #vt100 #alt_console, #vt100 #cursor, #vt100 #lineheight {
font-family: "DejaVu Sans Mono", "Everson Mono", FreeMono, "Andale Mono", "Lucida Console", monospace;
}
#vt100 #lineheight {
position: absolute;
visibility: hidden;
}
#vt100 #cursor {
position: absolute;
left: 0px;

44
shellinabox/vt100.js
View file

@ -234,11 +234,11 @@ VT100.prototype.initializeElements = function(container) {
'</div>' +
'<div id="menu"></div>' +
'<div id="scrollable">' +
'<pre id="lineheight">&nbsp;</pre>' +
'<pre id="console"></pre>' +
'<pre id="alt_console" style="display: none"></pre>' +
'<div id="padding"></div>' +
'<pre id="cursor">&nbsp;</pre>' +
'<pre id="lineheight">&nbsp;</pre>' +
'<pre id="cursor">X</pre>' +
'</div>' +
'<div class="hidden">' +
'<input type="textfield" id="input" />' +
@ -982,28 +982,54 @@ VT100.prototype.putString = function(x, y, text, style) {
this.cursorX = 0;
}
}
var pixelX = -1;
var pixelY = -1;
if (!this.cursor.style.visibility) {
var idx = this.cursorX - xPos;
if (span) {
var nxtIdx = idx - this.getTextContent(span).length;
// If we are in a non-empty line, take the cursor Y position from the
// other elements in this line. If dealing with broken, non-proportional
// fonts, this is likely to yield better results.
pixelY = span.offsetTop;
s = this.getTextContent(span);
var nxtIdx = idx - s.length;
if (nxtIdx < 0) {
this.setTextContent(this.cursor,
this.getTextContent(span).charAt(idx));
} else if (span.nextSibling) {
this.setTextContent(this.cursor,
this.getTextContent(span.nextSibling).charAt(nxtIdx));
this.setTextContent(this.cursor, s.charAt(idx));
pixelX = span.offsetLeft +
idx*span.offsetWidth / s.length;
} else {
this.setTextContent(this.cursor, ' ');
if (nxtIdx == 0) {
pixelX = span.offsetLeft + span.offsetWidth;
}
if (span.nextSibling) {
s = this.getTextContent(span.nextSibling);
this.setTextContent(this.cursor, s.charAt(nxtIdx));
if (pixelX < 0) {
pixelX = span.nextSibling.offsetLeft +
nxtIdx*span.offsetWidth / s.length;
}
} else {
this.setTextContent(this.cursor, ' ');
}
}
} else {
this.setTextContent(this.cursor, ' ');
}
}
if (pixelX >= 0) {
this.cursor.style.left = pixelX + 'px';
} else {
this.cursor.style.left = this.cursorX*this.cursorWidth +
console.offsetLeft + 'px';
}
this.cursorY = yIdx - this.numScrollbackLines;
if (pixelY >= 0) {
this.cursor.style.top = pixelY + 'px';
} else {
this.cursor.style.top = yIdx*this.cursorHeight +
console.offsetTop + 'px';
}
if (text.length) {
// Merge <span> with previous sibling, if styles are identical