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Articles indexed in May 2010

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  • Calling CONTENT_SCRIPT JS From BROWSER_ACTION Popup HTML

    - by Aristotle
    I'm working on a Google Chrome Extension and would like to get an HTML from within my popup HTML to call functions within my loaded javascript file. My manifest follows: { "name": "Extension", "version": "1.0", "description": "Extension", "browser_action": { "default_icon": "icon.png", "default_title": "Ext", "popup": "popup.html" }, "content_scripts": [{ "matches": ["http://*/*"], "css": ["ext.css"], "js": ["jquery.js","scripts.js"] }], "permissions": [ "http://*/*" ] } As you can see I'm loading in a local copy of jQuery, along with another javascript file for my own personal logic. My popup document looks like this: <select id="values"> <option>Foo</option> <option>Bar</option> </select> And the contents of my scripts.js file follow: $(function(){ $("#values").change(function(){ alert("Foo"); }); }); This isn't doing what I expect though - alerting "Foo" anytime I change a value in my popup HTML. How can I get these two files to communicate with eachother? Or can they at all?

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  • Get list of authenticated users in glassfish

    - by KevMo
    Is it possible to get a list of all the currently logged in users in an application running on glassfish? I'm user container managed authentication, so I know the information is somewhere. I would like to display this information on my own JSP page as opposed to finding it in the admin console, but either will work fine.

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  • How does Visual Studio decide the order in which stack variables should be allocated?

    - by Jason
    I'm trying to turn some of the programs in gera's Insecure Programming by example into client/server applications that could be used in capture the flag scenarios to teach exploit development. The problem I'm having is that I'm not sure how Visual Studio (I'm using 2005 Professional Edition) decides where to allocate variables on the stack. When I compile and run example 1: int main() { int cookie; char buf[80]; printf("buf: %08x cookie: %08x\n", &buf, &cookie); gets(buf); if (cookie == 0x41424344) printf("you win!\n"); } I get the following result: buf: 0012ff14 cookie: 0012ff64 buf starts at an address eighty bytes lower than cookie, and any four bytes that are copied in buf after the first eighty will appear in cookie. The problem I'm having is when I place this code in some other function. When I compile and run the following code, I get a different result: buf appears at an address greater than cookie's. void ClientSocketHandler(SOCKET cs){ int cookie; char buf[80]; char stringToSend[160]; int numBytesRecved; int totalNumBytes; sprintf(stringToSend,"buf: %08x cookie: %08x\n",&buf,&cookie); send(cs,stringToSend,strlen(stringToSend),NULL); The result is: buf: 0012fd00 cookie: 0012fcfc Now there is no way to set cookie to arbitrary data via overwriting buf. Is there any way to tell Visual Studio to allocate cookie before buf? Is there any way to tell beforehand how the variables will be allocated? Thanks, Jason

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  • How to cache method results in .Net

    - by SP
    Using webmethods, caching the results is pretty straight forward using "CacheDuration" attribute. Is there a similar "easy" way to cache non-webmethod outputs (or static methods) based on the parameters? I would appreciate any help. Thanks in advance!

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  • How do I use try...catch to catch floating point errors?

    - by Peter Stewart
    I'm using c++ in visual studio express to generate random expression trees for use in a genetic algorithm type of program. Because they are random, the trees often generate: divide by zero, overflow, underflow as well as returning "inf" and other strings. I can write handlers for the strings, but the literature left me baffled about the others. If I understand it correctly, I have to set some flags first? Advice and/or a pointer to some literature would be appreciated.

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  • What is your favorite way to read XML files using C#?

    - by stacker
    Let's take this xml structure as example: <?xml version="1.0" encoding="utf-8"?> <Configuration-content> <XFile Name="file name 1" /> <XFile Name="name2" /> <XFile Name="name3" /> <XFile Name="name4" /> </Configuration-content> public class Configuration { public XFile[] Files { get; set; } } public interface IConfigurationRipository { Configuration Get(); void Save(Configuration entity); } I wonder what's the best way to do that. The task is to implement IConfigurationRipository using your favorite approach.

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  • overridden three20 TTDefaultStyleSheet style not working

    - by funkadelic
    hi, i recently got three20 integrated into my app and am trying to override the default toolbar color in TTWebController. In TTWebController.m:118 I see that this is setting the toolbar's tintColor: _toolbar.tintColor = TTSTYLEVAR(toolbarTintColor); So I created my own stylesheet that subclasses TTDefaultStyleSheet and overrides toolbarTintColor FooStyleSheet.h: #import <Three20Style/Three20Style.h> #import <Three20Style/TTStyleSheet.h> #import <Three20Style/TTDefaultStyleSheet.h> @interface FooStyleSheet : TTDefaultStyleSheet @property (nonatomic, readonly) UIColor* toolbarTintColor; @end FooStyleSheet.m: #import "FooStyleSheet.h" @implementation RaptrStyleSheet - (UIColor*)toolbarTintColor { return RGBCOLOR(0, 0, 0); // should override TTDefaultStyleSheet } @end and in my application:didFinishLaunchingWithOptions: i set my default stylesheet [TTStyleSheet setGlobalStyleSheet:[[[FooStyleSheet alloc] init] autorelease]]; but when I view the TTWebController, it doesn't inherit my tintColor. If I edit TTDefaultStyleSheet.m directly: - (UIColor*)toolbarTintColor { return [UIColor blackColor]; } it works as expected. Is there something I am overlooking that is preventing my style to be picked up? thanks, -norm

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  • How do I access the popup page DOM from bg page in Chrome extension?

    - by Fletcher Moore
    In Google Chrome's extension developer section, it says The HTML pages inside an extension have complete access to each other's DOMs, and they can invoke functions on each other. ... The popup's contents are a web page defined by an HTML file (popup.html). The popup doesn't need to duplicate code that's in the background page (background.html) because the popup can invoke functions on the background page I've loaded and tested jQuery, and can access DOM elements in background.html with jQuery, but I cannot figure out how to get access to DOM elements in popup.html from background.html.

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  • Upcoming Script# Release and LIDNUG presentation

    A quick heads up on a Script# presentation for the Linked.NET user group on LinkedIn, and some words (ummm... teasers) on the upcoming script# release...[Full post continued here...]...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • MVC 2 Client Side Model Validation with ExtJS

    One of the most exciting new features in MVC 2 is "Enhanced Model Validation support across both server and client"; this new enhanced support allows for client side validation to be dynamically generated into a view from DataAnnotations attributes on models. One minor complaint: Out of the box, it only supports the Microsoft AJAX libraries. Good news: It can use other frameworks, and we have done just that! Ext.ux.MvcFormValidator The MvcFormValidator is an alternative form validation...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Launching a URL from an OOB Silverlight Application

    So I'm working on this code browser mostly to help me with my fading memory. In the app I want to be able to launch a url. So I do my normal thing and put a line of code that looks like this:System.Windows.Browser.HtmlPage.Window.Navigate(new Uri(ThisURI), "_blank");I was agast when I realized that this didn't work, for that matter it didn't even blow... grr... but with a bit of research I found that the hyper link button worked so a ended up making a little class like this:public class MyHyperLink...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • An Hour With Bill Buxton MIX10

    After spending a couple of hours with Rowan Simpson yesterday afternoon I found myself continually coming back to some of the things that Bill Buxton talked about in his hour Q&A at MIX10 in Las Vegas. Dont have Silverlight? Download the video in WMV, WMV (High) or MP4 format. At the more theoretical level, Bill discusses technology as a human prosthesis, but he favours metaphors that are as far away from technology as possible. The Seattle Public Library and software building....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • The Visual Studio development environment crashes when you open Visual Studio 2005, Visual Studio 20

    983279 ... The Visual Studio development environment crashes when you open Visual Studio 2005, Visual Studio 2008, or Visual Studio 2010This RSS feed provided by kbAlerz.com.Visit kbAlertz.com to subscribe. It's 100% free and you'll be able to recieve e-mail or RSS updates for the technologies you pick from the Microsoft Knowledge Base....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Looking for an actual experience of RAID 5 2 drive failure?

    - by Brian
    I'm wondering if anyone has any personal experience of RAID 5 2 drive failure with large drives? As I understand it, the theory is that with large 1-2TB drives, if one drive fails in the raid set, it needs to rebuild everything so is thus hitting all the other drives very hard, and the chance of another failure goes up, especially if the drives were from the same manufacturing batch. And if you lose another drive, you lose all the data. This is usually explained after the statement "RAID is not backup" which I agree with. The theory of this makes sense, and I understand it, but does it really happen?

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  • Cannot get Windows snipping tool to auto run with AutoHotKey

    - by jasondavis
    I am trying to get Windows 7 sniping tool to run when I hit my PRINTSCREEN keyboard button with AUTOHOTKEY. I have been unsuccessful so far though. Here is what I have for the AutoHotKey script. I have tried this PRINTSCREEN::Run, c:\windows\system32\SnippingTool.exe and this PRINTSCREEN::Run, SnippingTool.exe and this PRINTSCREEN::Run, SnippingTool And all those give me this error when I hit the PRINTSCREEN button... It basicly says it cannot find the file, however the file path seems to be correct, I can copy paste it into a window and it opens the snipping tool, any ideas why it will not work? Here is the full code to my AHK file... ; ; AutoHotkey Version: 1.x ; Language: English ; Platform: Win7 ; Author: Jason Davis <friendproject@> ; ; Script Function: ; Template script (you can customize this template by editing "ShellNew\Template.ahk" in your Windows folder) ; #NoEnv ; Recommended for performance and compatibility with future AutoHotkey releases. SendMode Input ; Recommended for new scripts due to its superior speed and reliability. SetWorkingDir %A_ScriptDir% ; Ensures a consistent starting directory. /* PRINTSCREEN = Will run Windows 7 snipping tool */ PRINTSCREEN::Run, c:\windows\system32\SnippingTool.exe return

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  • HD failure questions ...

    - by JP
    I recently had one of my home PC hard drives fail. It was in a striped raid, so I had to rebuild the raid (no data lost, only the OS partition was there). Is there any way to diagnose exactly what went wrong with the drive? That is what caused the failure? Also, in general, what is a good way to dispose of a failed hard drive securely and realistically (I don't have thermite or muriatic acid)?

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  • Applying Advanced Search Operators

    Search engines have developed additional applications termed advanced search operators to offer power internet marketers even more control each time searching. Advanced search operators are exclusive terms which you could place as part of your search query in order to come across unique sorts of details which a common search can not offer. A number of of those operators provide valuable tools for SEO specialists as well as other people who desire rather specific details, or maybe who need to restrict their particular search to extremely distinct source.

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  • Code coordinates to match compass bearings

    - by pinnacler
    Right now in Matlab (0,0) is the origin, 0 degrees / 2pi would be to the right of the cartesian plane and angles are measured counter clockwise with 90 degrees being at the top. I'm trying to write a simulator where the coordinates would match a compass bearing. 0/360 degrees or 2pi would be at the top and 90 degrees would be on the right. Any idea how to code in Matlab or c++? I'd imaging it'd be a matrix flipped about the x axis and rotated 90 degrees but I'm at a total loss. Phil

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  • Paginating requests to an API

    - by user332912
    I'm consuming (via urllib/urllib2) an API that returns XML results. The API always returns the total_hit_count for my query, but only allows me to retrieve results in batches of, say, 100 or 1000. The API stipulates I need to specify a start_pos and end_pos for offsetting this, in order to walk through the results. Say the urllib request looks like "http://someservice?query='test'&start_pos=X&end_pos=Y". If I send an initial 'taster' query with lowest data transfer such as http://someservice?query='test'&start_pos=1&end_pos=1 in order to get back a result of, for conjecture, total_hits = 1234, I'd like to work out an approach to most cleanly request those 1234 results in batches of, again say, 100 or 1000 or... This is what I came up with so far, and it seems to work, but I'd like to know if you would have done things differently or if I could improve upon this: hits_per_page=1000 # or 1000 or 200 or whatever, adjustable total_hits = 1234 # retreived with BSoup from 'taster query' base_url = "http://someservice?query='test'" startdoc_positions = [n for n in range(1, total_hits, hits_per_page)] enddoc_positions = [startdoc_position + hits_per_page - 1 for startdoc_position in startdoc_positions] for start, end in zip(startdoc_positions, enddoc_positions): if end total_hits: end = total_hits print "url to request is:\n ", print "%s&start_pos=%s&end_pos=%s" % (base_url, start, end) p.s. I'm a long time consumer of StackOverflow, especially the Python questions, but this is my first question posted. You guys are just brilliant.

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  • Project Euler 9 Understanding

    - by DMan
    This question states: A Pythagorean triplet is a set of three natural numbers, a b c, for which, a2 + b2 = c2 For example, 32 + 42 = 9 + 16 = 25 = 52. There exists exactly one Pythagorean triplet for which a + b + c = 1000. Find the product abc. I'm not sure what's it trying to ask you. Are we trying to find a^2+b^2=c^2 and then plug those numbers into a+b+c=1000?

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  • C++ Code Clarification Needed..

    - by ke3pup
    Hi guys I'm trying to understand what the code below says: struct compare_pq; struct compare_pq { bool operator() (Events *& a, Events *& b); }; std::priority_queue<Events *, std::vector<Events *>, compare_pq> eventList; i looked at what priority_queue is and how its declared but can't quit understand what compare_pq is doing in the priority_queue eventList. Also what does operator() do since i've never seen *& before and empty operator overloading operator()! any help would be appreciated. Thank you

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  • Is removing unused functionality a bad thing?

    - by Andrew Grimm
    Is it possible for YAGNI to apply in the past tense? You created some functionality, it was used a little bit a while ago, but you aren't using it any more, and you don't want to maintain it, so you'd rather delete it. Is getting rid of unused or rarely-used functionality neccessarily a bad thing? Background: I use source control, so if I need the functionality again, I can get it. I'm the only user of my software (I'm a bioinformatician analyzing a data set). One scenario where I came across this was that I was using inheritance, with a parent class, and two child classes. One was handling files generated by 454 sequencing (next-generation sequencing), and the other was handling files generated by Sanger sequencing (previous-generation sequencing). I was actively maintaining the latter, but not the former. Maybe my mistake was using inheritance rather than composition, but that's a slightly different story.

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