Userscripts.org

hi guys... i have a litte question.. since 3 days i try to write a userscript for greasemonkey with no result :(

first for better understanding
i can only use greasemonkey WITHOUT jquery!
the pc is offline (security reason)
firefox version is 2.0.0.11 and not updateable...
greasemonkey version is 0.8.2
the userscript is for localhost

i want to disable an existing input-field with the name "prio"

the code looks like this: http://jsfiddle.net/gv3XF/5/
and i want it like this: http://jsfiddle.net/gv3XF/6/

in firefox 2.0.0.11 i recieve the error

Error: document.querySelector is not a function
Source File: file:///G:/FirefoxPortable2.0.0.11/Data/profile...
Line: 7

in firefox 10 the same code works only on jsfiddle but not on localhost and i recieve the error

Error: oldInput is null
Source File: file:///C:/Dokumente%20und%20Einstellungen/Admi...
Line: 8

the code looks this:

// ==UserScript==
// @name test
// @include *
// @grant GM_getValue
// ==/UserScript==

var oldInput = document.querySelector ("input[name=prio]");
oldInput.setAttribute ("disabled", "disabled");

any ideas what here is the problem?
or maybe has someone an other idea to disable the input-field :D

thanks

best regards
bernte

Reason for error in FF 2.x:
The methods querySelector and querySelectorAll were introduced in v3.5 (per MDN docs), therefore those won't work on 2.x.

Reason for error in FF 10:
2 reasons:

• You aren't checking to see if it actually found the element before you start modifying it.
• Your quotes are off on your querySelector. As a general rule of thumb, keep all strings in single quotes (') and then for the query, all attributes should be double quotes.

Try this instead for FF10+:

var oldInput = document.querySelector('input[name="prio"]');
if (oldInput) {
	// Only set the attribute if it actually found the element.
	oldInput.setAttribute('disabled', 'disabled');
}

var inputs = document.getElementsByTagName('input');
for (var i = 0; i < inputs.length; i++) {
	var oldInput = inputs[i];
	if (oldInput.getAttribute('name') === 'prio') {
		oldInput.setAttribute('disabled', 'disabled');
		break;
	}
}

I seriously recommend that you upgrade your Firefox to the latest version and your Greasemonkey to the latest as well. (FFv15.0 / GMv1.0 as of today)

Edit: Fixed typo in code.

// create Attribute "disabled and set =disabled;
var disabled = document.createAttribute("disabled");
disabled.nodeValue = "disabled";

// find first element with name prio
var inp= document.getElementsByName("prio")[0];
// set Attribute to it
inp.setAttributeNode(disabled);

hi Cletus..

i need only the code for FF2.x i know that we have to update.. but it is not possible! :( the softwarecompany build the system for this browser!
we tried also with portable some new versions but the software wont start and is full of bugs!

so i need only a code for FF2.x :D

your code says: syntax error on line 8
foreach (var i = 0; i < inputs.length; i++) {

thanks for the quick response ;)

sems foreach should be only a simple "for"

sorry for posting again.... can't edit the post..

hi Comswitch...
your code works but it gives me an also an error message in the console:

inp has no propertyies on line 14
inp.setAttributeNode(disabled);

Check that the input can found on your site.
var inp= document.getElementsByName("prio")[0];
Maybe, at the time of script there is no name=prio?
I found on internet http://www.webmasterworld.com/forum91/4716.htm Pherhaps inp is null, pls check that.
But first start your script since the main site has finished loading?
wrap that around:

window.addEventListener("load", function(e) {
 startmydisablefunction(); 
},false);

the code @ jsfiddle was just a small code
the original is:

#tr valign="top"#
	#td "="" align="left"#Prio: #/td#
	#td align="left"##input maxlength="10" onfocus="setColoredField(this)" name="prio" accesskey="p" value="270.0" size="7" type="text"##/td#
#/tr#

have to edit the code.. replaced < and > with # because code wasn't visible

i don't know what you mean with "But you first start your script since the main site is finised with loading?" my english is not the best :D
your code snippet works! i load the site and the prio box is disabled. but i have in the error console the inp has no properties message

edit: the input field is normaly generated like the sourcecode i wrot above.. the problem is that i may not edit the sourcecode (license)
i just can manipulate! and i just wanna disable the input field for manipulation :D

I have understood you can get it working, but you get an error.
try var inp= document.getElementsByName("prio")[0];
we hope there is only one element with name="prio".
Sorry FF1.0 und FF2.0 is a long time ago, I cant remember me well.

bernte wrote:
your code says: syntax error on line 8

ComSwitch wrote:
But first start your script since the main site has finished loading?

@ComSwitch

i think your script is fine... i maybe found the error.. i have the test-site with the priobox in an tab.. and got an tab with this thread.. i think the error comes when i change the tabs because my rule says

// @include *

which means search on all sites right? maybe i can that edit by set the ip for the *

@ Cletus

your code works fine too!!!! :D thanks for helping!

hi guys.. first i wanna say thank you again! both codes work perfect!
but i have a new problem :D

first take a look at this: http://jsfiddle.net/gv3XF/8/

is it possible to modify the code?
i have 1 access-point for many users. but i want that 5 users are able to change the prio
you can see @ jsfiddle that the username is in the footer!

is it possible to do that in javascript with the code above for FF2.x?

example:
if USER (from footer) == JOHN || LUKE || JEFF || MAX || ANDY
do nothing

else
disable PRIO BOX (from content)

best regards
bernte

Here you go, http://jsfiddle.net/gv3XF/9/

// List of users.
var users = [
    'John',
    'Luke',
    'Jeff',
    'Max',
    'Andy'
];
// true = accepts only "John", false = accepts "John" or "john".
var caseSensitive = true;


// Creates the RegExp.
var reg = new RegExp('\(User: (' + users.join('|') + ')\)', ((caseSensitive) ? '' : 'i' ));
// Gets footer text.
var userStr = document.getElementById('footer').lastChild.textContent;

// If username was NOT in the list, disable priority input.
if (!reg.test(userStr)) {
    // Gets all inputs.
    var inputs = document.getElementsByTagName('input');
    // Loops through inputs.
    for (var i = 0; i < inputs.length; i++) {
        var oldInput = inputs[i];
        if (oldInput.getAttribute('name') === 'prio') {
            // Input found, disable it.
            oldInput.setAttribute('disabled', 'disabled');
            break;
        }
    }
}

Just add the users to the list. Feel free to change the caseSensitive variable if needed.

hi Cletus...

your code looks great!
i made the id="footer" just for jsfiddle so i recieve the error: document.getElementById("footer") has no properties.

sorry that was my fault :(

i replaced the footer with the original code.. i have only a class="user"

updated version: http://jsfiddle.net/gv3XF/10/

edit: and getElementsByClassName doesn't work in FF2.x ... damn :(

a bit of topic: you want do security by GM Script, but what is the user delete or edit your script?

why not this way: link deleted

edit: jsfiddle link deleted

@ComSwitch
the User can't delete or edit the script. i have a cool addon for firefox which don't allow to edit/disable addons (password protection)

with your code i recieve the error: document.getElementById("footer") has no properties Line: 16

i have updated my version (http://jsfiddle.net/gv3XF/10/). i don't have the id "footer" anymore. it was my fault! sorry for that :(

//I fogott to update jsfidle.
 var str="";
 var userStr="";
 var elm=document.getElementsByTagName("td");
for (var i = 0; i < elm.length; i++) {
 str+="i="+i+" ";
 if(elm[i].getAttribute("class")=="user"){
  str+="Found:"+elm[i].innerHTML;
  userStr= elm[i].lastChild.textContent;
 }
 str+="
";
}
document.write(str+" "+userStr);

you need 2 to do some changes.. its very easy..
i can write an tutorial for you if you like.. but i need some time. is that ok?
You scratch my back and I'll scratch yours. :D :D

sorry ComSwitch..
i'm not that coder :/ i'm more special to html and css :D

and your code i don't understand :D i see what you did but can't finish it :(

Pls describe it in a short way. I can deaktivate my monkey and I can edit the monkey script, I can deaktivate a script if I have more then one which should work on a page.

if(elm[i].getAttribute("class")=="user") if is tru it is a < td class="user">, and you found the < td> tag, I throught that is what you want.

http://jsfiddle.net/ppGe8/2/

ok.. here we go!

1. Press right-mouse on greasemonkey logo and click customize (right side of google search window)
2. click and drag greasemonkey-logo into the openend customize window.
3. Press ok and the logo is away! (you can't edit/enable greasemonkey from here anymore)

4. install Menu Editor for Firefox (https://addons.mozilla.org/en-US/firefox/addon/...)
5. after restart go to Menu Editor options (Tools -> Add-ons)
6. edit menu -> Tools
7. Click on Greasemonkey and press Hide. (and all other you like/need)
8. Press OK. (now you can't edit/enable greasemonkey from here anymore)

9. install Pulblic Fox for Firefox (https://addons.mozilla.org/en-US/firefox/addon/...)
10. after restart go to Public Fox options (Tools -> Add-ons)
11. mark the following settings: Lock Add-ons windows, Lock Firefox options, Lock 'about:config' settings-page, Lock Toolbar Customization (you can disable more if you want)
12. Set the "Lock Password".
13. press OK.
14. restart Firefox

15. Have FUN :D

if you want to edit greasemonkey scripts you can do that over Tools -> Add-ons -> User Scripts
if you want to add new script you have to unhide how described it at 4. - 8.

hope you like it

the only thing i see at ff10.x @http://jsfiddle.net/ppGe8/2/ in the preview box is

i=0 Found:  Logout  (User: John)
i=1
i=2
 (User: John) 

the inputs are gone :/

when i try it in ff2.x the browser crashes

Thank you, sounds complicated, but seems you understood what you do.

you wrote
...inputs are gone...

Here ya go:

// List of users.
var users = [
    'John',
    'Luke',
    'Jeff',
    'Max',
    'Andy'
];
// true = accepts only "John", false = accepts "John" or "john".
var caseSensitive = true;


// Creates the RegExp.
var reg = new RegExp('^Logout (' + users.join('|') + ')$', ((caseSensitive) ? '' : 'i' ));

// Gets all links and loops through them.
var links = document.getElementsByTagName('a');
for (var i = 0; i < links.length; i++) {
	if (links[i].hasAttribute('title')) {
		var title = links[i].getAttribute('title');
		// Check if link is the logout link.
		if (title.indexOf('Logout') < 0) {
			// Wrong link, try the next one.
			continue;
		}
		// Check if username in list, if so, exit.
		if (reg.test(title)) {
			break;
		}
		// Username not in list, disable priority input.
		else {
			// Gets all inputs and loops through them.
			var inputs = document.getElementsByTagName('input');
			for (var j = 0; j < inputs.length; j++) {
				var oldInput = inputs[j];
				if (oldInput.getAttribute('name') === 'prio') {
					// Input found, disable it.
					oldInput.setAttribute('disabled', 'disabled');
					break;
				}
			}
		}
	}
}

yeahhh cletus that works!
TYVM!!!!! :D

No problem! Feel free to PM me if you need any help.