There are 14 previous versions of this script.
////////////////////////////////////////////////////////////////////////////
// ==UserScript===
// @name Userscripts.org Source Numbering
// @author Jerone UserScript Productions
// @namespace http://userscripts.org/users/31497
// @homepage http://userscripts.org/scripts/show/38912
// @description Add line numbering to source code.
// @description Userscripts.org Source Numbering v2.3.2 Alpha
// @copyright 2008 - 2011 Jerone
// @version v2.3.2 Alpha
// @versiontext Updated.
// @browser FF8
// @include http://userscripts.org/scripts/review/*
// ==/UserScript==
/*//////////////////////////////////////////////////////////////////////////
// ToC:
// - Copyrights
// - History
// - Todo
// - Note
// - User Settings
// - Userscript
// - Statistics
////////////////////////////////////////////////////////////////////////////
THIS SCRIPT IS PROVIDED BY THE AUTHOR `AS IS' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SCRIPT, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
////////////////////////////////////////////////////////////////////////////
// History:
// [+] = added; [-] = removed; [/] = fixed; [*] = updated;
19-12-2008 17:30 [v1 Alpha]:
[+] initial release;
10-01-2009 19:15 [v1.1 Beta]:
[/] fixed bug in to many lines causing FF to crash;
[/] minor bug fix in numbering width;
[*] updated framework;
11-01-2009 00:15 [v1.1.1 Beta]:
[/] fixed bug in code;
15-01-2009 17:00 [v1.2 Beta]:
[+] added maximum lines option;
[/] fixed style;
[*] cleaned up code;
13-11-2010 23:30 [v1.3 Beta]:
[/] fixed style;
[*] cleaned up code;
31-01-2011 12:30 [v2.0 Alpha]:
[*] removed US Framework;
[*] clean up code;
25-02-2011 21:00 [v2.0.1 Alpha]:
[/] fixed minor styles bug;
25-02-2011 21:15 [v2.0.2 Alpha]:
[/] fixed minor styles bug again (I blame it to the little message saying that highlighting wasn't possible);
19-03-2011 18:00 [v2.1 Alpha]:
[/] partially fixed compatibility with other script like "uso - Syntax Highlight" (http://userscripts.org/scripts/show/85835).
This script should always execute last.
27-03-2011 23:00 [v2.2 Alpha]:
[+] added line selecting with location hash support;
28-03-2011 00:00 [v2.2.1 Alpha]:
[*] clean up;
29-03-2011 16:00 [v2.3 Alpha]:
[*] removed redundant code;
[+] added shortcut to go to specified lines (Ctrl + g);
[+] implemented "*" as reference to last line (in both hash event and shortcut);
03-04-2011 20:30 [v2.3.1 Alpha]:
[*] style changes, every 10th row has had a visual change;
[*] compatibility with line numbering from userscript "uso - Count Issues" (http://userscripts.org/scripts/show/69307);
02-11-2011 20:30 [v2.3.2 Alpha]:
[/] fixed wrong highlighting line;
[/] fixed use of 0 (will be threated as line 1);
////////////////////////////////////////////////////////////////////////////
// Todo:
// -
////////////////////////////////////////////////////////////////////////////
// Note:
// -
/*//////////////////////////////////////////////////////////////////////////
//*** USER SETTINGS ***//
var maxLines = 10000; // [Integer] maximum number of lines (prevent browser from hanging and possibly crashing);
//*** USERSCRIPT ***//
(function(win, doc, und) {
try {
var getStyle = function(node, attr){
if(doc.defaultView && doc.defaultView.getComputedStyle){
return doc.defaultView.getComputedStyle(node, null).getPropertyValue(attr);
} else if(node.currentStyle){
return node.currentStyle[attr];
}
return node.style[attr];
};
var USN = {
Init: function(){
var pre;
if((pre = doc.getElementById("source"))){
// All the CSS;
var css = (<style><![CDATA[
.numb {
border: 1px solid #DDDDDD;
float: left;
margin: 0;
padding: 5px 0;
position: relative;
width: 60px;
z-index: 10;
}
.numbNr {
font-family: monospace !important;
font-size: 1.1em !important;
}
.numbNr td {
border: 0px none !important;
padding: 0px !important;
text-align: center !important;
}
.numbNr a,
.numbNr a:hover,
.numbNr a:active {
color: #333333;
text-decoration:none;
}
.numbNr tr:hover a {
font-size: 2em;
line-height: 0.75em;
}
.numbNr a.decade {
font-size: 2em;
line-height: 0.75em;
}
.notice {
margin-bottom: 16px !important;
}
.highlight {
background-color:yellow;
font: 1em/1.5 'andale mono','lucida console',monospace;
font-size: 1.1em;
height: 1.1em;
left: 0;
opacity: 0.5;
position: absolute;
width: 100%;
z-index: 9;
}
#source {
background-color:transparent !important;
margin-left: 60px !important;
position: relative !important;
z-index: 10;
}
]]></style>.toString());
var styler = doc.createElement("style");
styler.setAttribute("type", "text/css");
styler.appendChild(doc.createTextNode(css));
doc.getElementsByTagName("head")[0].appendChild(styler);
var preHeight = parseFloat(getStyle(pre, "height")),
lineHeight = parseFloat(getStyle(pre, "line-height")) || 17.6833; // px;
var wrapper = doc.createElement("div");
wrapper.appendChild(pre.cloneNode(true));
pre.parentNode.replaceChild(wrapper, pre);
pre = wrapper.firstChild;
var div = doc.createElement("div");
div.className = "numb";
div.style.height = preHeight + "px";
pre.parentNode.insertBefore(div, pre);
var table = doc.createElement("table");
table.width = "100%";
table.border = 0;
table.cellspacing = 0;
table.cellpadding = 0;
table.className = "numbNr";
div.appendChild(table);
var lines = (maxLines || 5000) + 1,
i = 1;
if(preHeight < ((lines + 10) * lineHeight)){
lines = pre.innerHTML.split(/\n/).length + 1;
}
for(; i<lines; i++){
var tr = doc.createElement("tr"),
td = doc.createElement("td"),
a = doc.createElement("a");
a.setAttribute("id", "line" + i);
a.setAttribute("href", "#line" + i);
a.setAttribute("title", "Line " + i);
a.setAttribute("class", i%10 ? "" : "decade");
a.addEventListener("click", (function(line){
return function(){
if(!USN.hashEvent.added){
win.setTimeout(function(){
USN.Highlight(line);
}, 13);
}
};
})(i), false);
a.appendChild(doc.createTextNode(i));
td.appendChild(a);
tr.appendChild(td);
table.appendChild(tr);
}
// Add hashchange event;
USN.hashEvent.Activate();
// Create shortcut to go to line;
USN.shortcut();
}
},
hashEvent: (function(){
var _fn = function(){
var hash = win.location.hash.match(/line-?(\d*)(-(\*|\d*))?/) || [],
begin = parseInt(hash[1], 10),
end = (hash[3]==="*" && doc.getElementById("source").innerHTML.split(/\n/).length) || parseInt(hash[3], 10) || begin;
if(!isNaN(begin)){
USN.hashEvent.Fix(begin, end);
}
};
return {
Activate: function(){
USN.hashEvent.added = true;
USN.hashEvent.Add();
// Do one check once the page has been loaded;
_fn();
},
added: false,
Add: function(){
win.addEventListener("hashchange", _fn, false);
},
Remove: function(){
win.removeEventListener("hashchange", _fn, false);
},
Fix: function(begin, end){
if(!isNaN(begin)){
begin = parseInt(begin, 10) || 1;
end = parseInt(end, 10) || begin;
// Get the real begin and end number;
var lineNrTemp = begin;
begin = Math.min(begin, end);
end = Math.max(lineNrTemp, end);
// Setting the correct hash, so that the browser scrolls to that point;
var oldHash = win.location.hash,
newHash = "#line" + begin;
// Temporary remove hashchange event, when it has been activated;
if(USN.hashEvent.added){
USN.hashEvent.Remove();
}
// Workaround for hashchange event, where it still detects hash changes;
win.setTimeout(function(){
// Set the new hash (stripped to one line number) to activate the hash position;
win.location.hash = newHash;
// Re-set the previous hash back;
win.location.hash = oldHash;
// Workaround for hashchange event, where it detects old hash changes;
win.setTimeout(function(){
// Re-add hashchange event, when it has been activated;
if(USN.hashEvent.added){
USN.hashEvent.Add();
}
}, 13);
}, 13);
// Highlight the line(s);
USN.Highlight(begin, end);
}
}
};
})(),
Highlight: function(begin, end){
var pre = doc.getElementById("source");
if(pre && !isNaN(begin)){
begin = parseInt(begin, 10);
end = parseInt(end, 10) || begin;
var range = end - begin + 1;
// This element with this id should exist;
var line = doc.getElementById("line" + begin);
if(line){
line = line.parentNode;
var height = parseFloat(getStyle(pre, "line-height")) || 17.6833,
top = line.offsetTop;
while(line.offsetParent && line.offsetParent.className!=="container"){
line = line.offsetParent;
top += line.offsetTop;
}
// If element with class highlight does not exist, create one.
var highlight = doc.getElementsByClassName("highlight")[0];
if(!highlight){
highlight = doc.createElement("div");
highlight.className = "highlight";
highlight.style.width = pre.offsetWidth + "px";
highlight.style.paddingLeft = pre.offsetLeft + "px";
pre.parentNode.insertBefore(highlight, pre);
}
// Place it right below the correct line(s);
highlight.style.top = top + "px";
highlight.style.height = (height * range) + "px";
}
}
},
shortcut: function(){
win.addEventListener("keydown", function(e){
if (e.keyCode===71 && e.ctrlKey){
// Prevent browser 's default behavior on the shortcut;
e.stopPropagation();
e.preventDefault();
// Ask which line(s);
var line = win.prompt("Which line numbers you want to go to?");
if(line){
// Set the location hash, but we still need the USN.hashEvent.Fix to correct begin+end line numbers;
win.location.hash = "#line" + line;
// If the hash event hasn't been activated, highlight the line(s) ourselves;
if(!USN.hashEvent.added){
var split = line.split("-"),
begin = split[0],
end = (split[1]==="*" && doc.getElementById("source").innerHTML.split(/\n/).length) || split[1];
USN.hashEvent.Fix(begin, end);
}
}
win.focus();
return false;
}
}, true);
}
};
USN.Init(); // execute;
} catch(e){ win.console && win.console.log(e); }
})(unsafeWindow || this, document);
//*** STATISTICS ***//
// Chars (exclude spaces): 8.946
// Chars (include spaces): 11.456
// Chars (Chinese): 0
// Words: 1.256
// Lines: 359
