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Greasemonkey script to count and display the number of links in a DIV on a Goal Line Blitz web page...

Posted on 2010-09-10
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Last Modified: 2013-12-07
I've asked this question before but I seem to have stumped the Experts.  I'll ask it again in a (I hope) more understandable form.

I have written a Greasemonkey script that changes the titles of the management team of a GLB team page.  The code is listed below.  This GM script changes the names of the team management from those used natively by GLB to those wanted by the team owner.  This script currently works perfectly.

I would now like to add more functionality to this GM script.  In addition to changing the management titles I would like it also to count up and display the total number of GMs (now changed to Whores) on the page.

Where it currently shows:

Whores: We_Rule, VonKortez, bmac1188

I would like it to show the total number of Whores like this:

Whores (3): We_Rule, VonKortez, bmac1188

The existing View Page Source of that section follows below.

			<div id="team_gms">GMs: <a href="/game/home.pl?user_id=5755">We_Rule</a>, <a href="/game/home.pl?user_id=144617">VonKortez</a>, <a href="/game/home.pl?user_id=286298">bmac1188</a></div>

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This new functionality needs to be integrated into the current name-changing GM script shown below.  In addition, this needs to work as a Greasemonkey script.

I hope I made the requirements clear.  If not, please let me know how I can clarify it.
// ==UserScript==
// @name   GLB Management Name Change 
// @namespace  ErDrRon
// @description Replace OC and DC on team page
// @include  http://goallineblitz.com/game/team.pl?team_id=6144
// ==/UserScript==


var e = document.getElementsByTagName("body")[0].getElementsByTagName("*");
            for(var i=0;i<e.length;i++) {
                  if(e[i].innerHTML) {
                        e[i].innerHTML = e[i].innerHTML.replace(/OC:/g,"Bartender:").replace(/DC:/g,"Bouncer:").replace(/CFO:/g,"Mr. Money Bags:").replace(/Recruiters:/g,"Pimps:").replace(/Co Owned by/g,"lolowners bitch:").replace(/GMs:/g,"Whores:").replace(/Owned by/g,"lolowner:").replace(/Head Coach/g,"Disc Jockey:").replace(/ST Coach:/g,"Yoga Instructer:").replace(/Scouts:/g,"Talent Evaluators:").replace(/Asst OC/g,"Janitor").replace(/Asst DC/g,"Security").replace(/Note from the Owner/g,"Note from the lolowner");
                  }
            }

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Question by:ErDrRon
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11 Comments
 
LVL 3

Accepted Solution

by:
T1750 earned 2000 total points
ID: 33652025
var gms = document.evaluate( 'count(//div[@id = "team_gms"]//a)', document, null, XPathResult.NUMBER_TYPE, null).numberValue;

That's how you can count them.
0
 
LVL 3

Expert Comment

by:T1750
ID: 33652027
I'm sure you can fill in the rest.
0
 

Author Comment

by:ErDrRon
ID: 33653337
I created a quick GM script using your code and reporting the results in an alert box.  It seems to function until the number of GMs exceeds 99.  Is their a limitation to the magnitude of the variable that an alert can present?

I've included the code for the test script below.

Thanks!

// ==UserScript==
// @name           Test GM count
// @namespace      ErDrRon
// @description    Test GM count
// @include        http://goallineblitz.com/game/team.p*
// ==/UserScript==


var gms = document.evaluate( 'count(//div[@id = "team_gms"]//a)', document, null, XPathResult.NUMBER_TYPE, null).numberValue;
alert(gms);

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LVL 3

Expert Comment

by:T1750
ID: 33653371
Not that I'm aware of, seems like a bug. You could try running the same thing on unsafewindow.
0
 
LVL 3

Expert Comment

by:T1750
ID: 33653377
The only other option available to you is to walk the DOM tree, collect the child nodes that are anchors and count them with an accumulator. Using innerHTML is a hack and often breaks things.
0
 
LVL 3

Expert Comment

by:T1750
ID: 33653408
Something like:

var gm_container = document.getElementById('team_gms');
var gms= 0;
for (i = 0; i < gm_container.childElementCount; i++) { if (gm_container.childNodes[i].nodeName.toLowerCase() == "a") gms++; }

But problems with the DOM do often happen if you write to innerHTML.
0
 

Author Comment

by:ErDrRon
ID: 33653715
I tried the above code but it doesn't seem to work.  It reports out anywhere from 1/2 to 1/4 of the actual number of GMs.  Thoughts?
0
 

Author Comment

by:ErDrRon
ID: 33653718
What is an unsafe window?
0
 

Author Comment

by:ErDrRon
ID: 33653756
I actually went back and re-counted the one I thought was incorrect at 99 and found it was actually correct.  the script works now.  Thanks You!!

I've included the completed script below.
// ==UserScript==
// @name           GLB Management Name Change 
// @namespace      ErDrRon
// @description    Replace management titles on lolgm Trophy Whores team page
// @version        1.0.1
// @date           2010-09-05
// @require        http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js
// @include        http://goallineblitz.com/game/team.pl?team_id=6144
// ==/UserScript==

var gms = document.evaluate( 'count(//div[@id = "team_gms"]//a)', document, null, XPathResult.NUMBER_TYPE, null).numberValue;

var e = document.getElementsByTagName("body")[0].getElementsByTagName("*");
            for(var i=0;i<e.length;i++) {
                  if(e[i].innerHTML) {
                        e[i].innerHTML = e[i].innerHTML.replace(/OC:/g,"Bartender:").replace(/DC:/g,"Bouncer:").replace(/CFO:/g,"Mr. Money Bags:").replace(/Recruiters:/g,"Pimps:").replace(/Co Owned by/g,"lolowners bitch:").replace(/GMs:/g,"Whores (" + gms + "):").replace(/Owned by/g,"lolowner:").replace(/Head Coach/g,"Disc Jockey:").replace(/ST Coach:/g,"Yoga Instructer:").replace(/Scouts:/g,"Talent Evaluators:").replace(/Asst OC/g,"Janitor").replace(/Asst DC/g,"Security").replace(/Note from the Owner/g,"Note from the lolowner");
                  }
            }

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0
 

Author Closing Comment

by:ErDrRon
ID: 33653766
Great help.  Thanks!
0
 
LVL 3

Expert Comment

by:T1750
ID: 33653768
Thoughts are that I haven't seen the fully formatted output of your gm game so I can't know the exact code to parse or if I have nodes to ignore or have to do depth traversal, but as you see, XPATH makes life easy so none of that matters I'm glad it works for you.
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