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  • JQuery selector for first hierarchy element?

    - by Sebastian P.R. Gingter
    I have this HTML structure: <div class="start"> <div class="someclass"> <div class="catchme"> <div="nested"> <div class="catchme"> <!-- STOP! no, no catchme's within other catchme's --> </div> </div> </div> <div class="someclass"> <div class="catchme"> </div> </div> </div> <div class="otherclass"> <div class="catchme"> </div> </div> </div> I am looking for a JQuery structure that returns all catchme's within my 'start' container, except all catchme's that are contained in a found catchme. In fact I only want all 'first-level' catchme's regardless how deep they are in the DOM tree. This is something near, but not really fine: var start = $('.start'); // do smething $('.catchme:first, .catchme:first:parent + .catchme', start) I sort of want to break further traversing down the tree behind all found elements. Any ideas?

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  • Swig: No Constructor defined

    - by wheaties
    I added %allowexcept to my *.i file when building a Python <-- C++ bridge using Swig. Then I removed that preprocessing directive. Now I can't get the Python produced code to recognize the constructor of a C++ class. Here's the class file: #include <exception> class Swig_Foo{ public: Swig_Foo(){} virtual ~Swig_Foo(){} virtual getInt() =0; virtual throwException() { throw std::exception(); } }; And here's the code Swig produces from it: class Swig_Foo: __swig_setmethods__ = {} __setattr__ = lambda self, name, value: _swig_setattr(self, Swig_Foo, name, value) __swig_getmethods__ = {} __getattr__ = lambda self, name: _swig_getattr(self, Swig_Foo, name) def __init__(self): raise AttributeError, "No constructor defined" __repr__ = _swig_repr __swig_destroy__ = _foo.delete_Swig_Foo __del__ = lambda self : None; def getInt(*args): return apply(_foo.Swig_Foo_getInt, args) def throwOut(*args): return apply(_foo.Swig_Foo_throwOut, args) Swig_Foo_swigregister = _foo.Swig_Foo_swigregister Swig_Foo_swigregister(Swig_Foo) The problem is the def __init__self): raise AttributeError, "No constructor defined" portion. It never did this before I added the %allowexception and now that I've removed it, I can't get it to create a real constructor. All the other classes have actual constructors. Quite baffled. Anyone know how I can get it to stop doing this?

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  • Segmentation fault while feeding in an mpeg file through ffmpeg

    - by angel6
    Hi, I've set up FFserver as the streaming server. I'm trying to feed in an mpeg file. But it comes up with a segmentation fault. Does anyone know how to fix this? The following is the command-line output I get $ ./ffmpeg -i test1.mpg http://localhost:8090/feed1.ffm FFmpeg version SVN-r22945, Copyright (c) 2000-2010 the FFmpeg developers built on Apr 22 2010 19:18:45 with gcc 4.4.1 configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-pthreads --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libx264 --enable-libxvid --enable-x11grab libavutil 50.14. 0 / 50.14. 0 libavcodec 52.66. 0 / 52.66. 0 libavformat 52.61. 0 / 52.61. 0 libavdevice 52. 2. 0 / 52. 2. 0 libswscale 0.10. 0 / 0.10. 0 libpostproc 51. 2. 0 / 51. 2. 0 [mpeg @ 0xab0c420]max_analyze_duration reached Input #0, mpeg, from 'test1.mpg': Duration: 00:00:20.96, start: 0.768300, bitrate: 269 kb/s Stream #0.0[0x1e0]: Video: mpeg1video, yuv420p, 160x120 [PAR 1:1 DAR 4:3], 104857 kb/s, 30 fps, 30 tbr, 90k tbn, 30 tbc Stream #0.1[0x1c0]: Audio: mp2, 32000 Hz, 2 channels, s16, 64 kb/s Output #0, ffm, to 'http://localhost:8090/feed1.ffm': Metadata: encoder : Lavf52.61.0 Stream #0.0: Audio: mp2, 22050 Hz, 1 channels, s16, 48 kb/s Stream #0.1: Video: mpeg1video, yuv420p, 160x128, q=2-31, 40 kb/s, 1000k tbn, 50 tbc Stream #0.2: Audio: libmp3lame, 22050 Hz, 1 channels, s16, 64 kb/s Stream #0.3: Video: msmpeg4, yuv420p, 352x240, q=2-31, 256 kb/s, 1000k tbn, 15 tbc Stream mapping: Stream #0.1 -> #0.0 Stream #0.0 -> #0.1 Stream #0.1 -> #0.2 Stream #0.0 -> #0.3 Press [q] to stop encoding Segmentation fault

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  • Eclipse does not start on Windows 7

    - by van
    Suddenly Eclipse today has decides to stop working. The last thing I did was close all perspectives and close Eclipse. When loading eclipse from the command prompt, using: "eclipse.exe -clean" the splash screen loads for a split second then exits. When I run the command: eclipsec -consoleLog -debug it results in the following output: Start VM: -Dosgi.requiredJavaVersion=1.6 -Dhelp.lucene.tokenizer=standard -Xms4096m -Xmx4096m -XX:MaxPermSize=512m -Djava.class.path=d:\devtools\eclipse\\plugins/org.eclipse.equinox.launcher_1.3. 0.v20130327-1440.jar -os win32 -ws win32 -arch x86_64 -showsplash d:\devtools\eclipse\\plugins\org.eclipse.platform_4.3.0.v20130605-20 00\splash.bmp -launcher d:\devtools\eclipse\eclipsec.exe -name Eclipsec --launcher.library d:\devtools\eclipse\\plugins/org.eclipse.equinox.launcher.win 32.win32.x86_64_1.1.200.v20130521-0416\eclipse_1503.dll -startup d:\devtools\eclipse\\plugins/org.eclipse.equinox.launcher_1.3.0.v201303 27-1440.jar --launcher.appendVmargs -product org.eclipse.epp.package.standard.product -consoleLog -debug -vm C:/Program Files/Java/jdk1.6.0_37/bin\..\jre\bin\server\jvm.dll -vmargs -Dosgi.requiredJavaVersion=1.6 -Dhelp.lucene.tokenizer=standard -Xms4096m -Xmx4096m -XX:MaxPermSize=512m -Djava.class.path=d:\devtools\eclipse\\plugins/org.eclipse.equinox.launcher_1.3. 0.v20130327-1440.jar Error occurred during initialization of VM Incompatible minimum and maximum heap sizes specified Checking Task Manager shows no Java process running and both the CPU and memory usage are very low. I have tried: Re-installing Eclipse Re-starting my machine But running eclipsec -consoleLog -debug from the command prompt still results in the issue: Error occurred during initialization of VM Incompatible minimum and maximum heap sizes specified

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  • Possible to recover mysql root pass with sudo server access?

    - by jonathonmorgan
    I've inherited development for a website on vps hosting, and have login info for a user with sudo privileges, but don't have the password for the mysql root user. After digging around a little, it looks like the only way to fix this is to stop mysql (something like this: http://waoewaoe.wordpress.com/2010/02/03/recover-reset-mysql-root-password/). But because the website it's serving is currently in production, I'm hoping you guys can enlighten me to any potential consequences (or let me know if there's typically a file where the password would be accessible). a) during the time mysql is stopped, information in the database won't be accessible, right -- even by other users? b) will resetting the root password have any impact on other users after mysql has restarted? Will their username/passwords still be valid? The current application is using an account with limited privileges to read/write to the database, and while 5min downtime in the middle of the night would probably go unnoticed, half a day while I tie up loose ends/figure out what I screwed up will land in me hot water. Thanks in advance for your help!

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  • How do you go about finding out whether an idea you've had has already been patented?

    - by Iain Fraser
    I have an idea for image copy-protection that I'm in the process of coding up and plan on selling to one of my clients who sells images online. If successful I think there would be a lot of people in a similar situation to my client who would be interested in the code also. I think this is a fairly unique idea that could be packaged into a saleable product - but if I did do this, I wouldn't want some big corporation decending on me with their lawyers after all my hard work. So before I put too much work into this I'd really like to know how I'd go about finding if this idea has been patented already and whether I'd get in trouble if I sold my product and if it would be worthwhile patenting the idea myself. Although I find the idea of software patenting abhorrent, it would be more to protect myself from the usual suspects than to stop fellow-developers from using the idea (if it is in fact a worthwhile one). I live in Australia, so an idea of who to go and see and a ball park figure of how much money I'd be looking at having to pay would be fantastic (in orders of a magnitude: 100s, 1000s, 10s of thousands of dollars, etc). Cheers Iain

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  • Multiple Application Support Directories for iPhone Simulator?

    - by Alex G
    I am developing an iPhone app with someone else. The app works fine for me, but he is running into a bug. We think this bug is related to the fact that he is getting multiple Application directories for this same app. In my ~/Library/Application Support/iPhone Simulator/User/Applications, I only have one folder at all times. He says that he will get 3 or 4 directories when he is only working on this one app. We think this is our problem because our bug has to do with displaying images that are stored in the app's Documents folder. Does anyone know why he is ending up with multiple directories or how to stop it? Edit: Here is the code for writing the image to a file: NSData *image = [NSData dataWithContentsOfURL:[NSURL URLWithString:[currentArticle articleImage]]]; NSArray *array = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *imagePath = [array objectAtIndex:0]; NSFileManager *NSFM = [NSFileManager defaultManager]; BOOL isDir = YES; if(![NSFM fileExistsAtPath:imagePath isDirectory:&isDir]) if(![NSFM createDirectoryAtPath:imagePath attributes:nil]) NSLog(@"error"); imagePath = [imagePath stringByAppendingFormat:@"/images"]; if(![NSFM fileExistsAtPath:imagePath isDirectory:&isDir]) if(![NSFM createDirectoryAtPath:imagePath attributes:nil]) NSLog(@"error"); imagePath = [imagePath stringByAppendingFormat:@"/%@.jpg", [currentArticle uniqueID]]; [image writeToFile:imagePath atomically:NO]; And here is the code for getting the path when I need the image: - (NSString *)imagePath { NSArray *array = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *imagePath = [array objectAtIndex:0]; return [imagePath stringByAppendingFormat:@"/images/%@.jpg", [self uniqueID]]; } The app works great for me, but my partner says that the images don't show up intermittently, and he notices that he gets multiple directories in his Applications folder.

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  • WPF and Prism View Overlay

    - by Zaheer
    Hi, I need some help with overlaying views using the prism framework.Its a little more complexed than that so let me explain.I could be over-thinking this as well :D i have shell (wpf window) and i have 2 views(A & B - both usercontrols) in a module. when the shell loads it loads view A. On view A i have a button to "popup" view B for some user input. so naturally i would think to some sort of modal window/control, maybe even a popup. however the problem i face with the popup is that when i move the shell the popup remains fixed and it doesnt block events in view A. I've tried disabling view A to stop events being fired and i've also tried to use a to get the view B move with the shell. Only the canvas works but i now need a way to block it tho'. Is there anyway i can overlay a view on top of another view with prism? or how does everyone else create modal popups with prism & wpf? any advise or pointers would be greatly appreciated.

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  • jQuery: How can I animate to a taller height with the height being added to the top of the element?

    - by Jannis
    Hi, I have a simple problem but I am not sure how to solve it. Basically I have some hidden content that, once expanded, requires a height of 99px. While collapsed the element holding it section#newsletter is set to be 65px in height. LIVE EXAMPLE: http://dev.supply.net.nz/asap-finance-static/ On the click of a#signup_form the section#newsletter is expanded to 99px using the following jQuery: $('#newsletter_form').hide(); // hide the initial form fields $('#form_signup').click(function(event) { event.preventDefault(); // stop click // animate $('section#newsletter').animate({height: 99}, 400, function() { $('#newsletter_form').show(300); }) }); All this works great except for the fact that this element sits in a sticky footer so its initial height is used to position it. Animating the height of this element causes scrollbars on the browser, because the 34px added are added to the bottom of the element, so my question: How can I add these 34px to the top of the element so the height expands upwards into the body not downwards? Thanks for reading, I look forward to your help and suggestions. Jannis

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  • How Can I Find Out *HOW* My Site Was Hacked? How Do I Find Site Vulnerabilities?

    - by Imageree
    One of my custom developed ASP.NET sites was hacked today: "Hacked By Swan (Please Stop Wars !.. )" It is using ASP.NET and SQL Server 2005 and IIS 6.0 and Windows 2003 server. I am not using Ajax and I think I am using stored procedures everywhere I am connecting to the database so I dont think it is SQL injection. I have now removed the write permission on the folders. How can I find out what they did to hack the site and what to do to prevent it from happening again? The server is up to date with all Windows updates. What they have done is uploading 6 files (index.asp, index.html, index.htm,...) to the main directory for the website. What log files should I upload? I have log files for IIS from this folder: c:\winnt\system32\LogFiles\W3SVC1. I am willing to show it to some of you but don't think it is good to post on the Internet. Anyone willing to take a look at it? I have already searched on Google but the only thing I find there are other sites that have been hacked - I haven't been able to see any discussion about it. I know this is not strictly related to programming but this is still an important thing for programmers and a lot of programmers have been hacked like this.

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  • How do I get a window caption?

    - by P.Brian.Mackey
    I would like to get a Window Caption as given by spy++ (highlighted in red) I have code to do this (or so I thought)...but it seems to work pretty awful....in some cases 1% of the time... public delegate bool EnumDelegate(IntPtr hWnd, int lParam); [DllImport("user32.dll")] [return: MarshalAs(UnmanagedType.Bool)] static extern bool IsWindowVisible(IntPtr hWnd); [DllImport("user32.dll", EntryPoint = "GetWindowText", ExactSpelling = false, CharSet = CharSet.Auto, SetLastError = true)] static extern int GetWindowText(IntPtr hWnd, StringBuilder lpWindowText, int nMaxCount); [DllImport("user32.dll", EntryPoint = "EnumDesktopWindows", ExactSpelling = false, CharSet = CharSet.Auto, SetLastError = true)] static extern bool EnumDesktopWindows(IntPtr hDesktop, EnumDelegate lpEnumCallbackFunction, IntPtr lParam); static List<NativeWindow> collection = new List<NativeWindow>(); public static NativeWindow GetAppNativeMainWindow() { GetNativeWindowHelper.EnumDelegate filter = delegate(IntPtr hWnd, int lParam) { StringBuilder strbTitle = new StringBuilder(255); int nLength = GetNativeWindowHelper.GetWindowText(hWnd, strbTitle, strbTitle.Capacity + 1); string strTitle = strbTitle.ToString(); if (!string.IsNullOrEmpty(strTitle)) { if (strTitle.ToLower().StartsWith("window title | my application")) { NativeWindow window = new NativeWindow(); window.AssignHandle(hWnd); collection.Add(window); return false;//stop enumerating } } return true;//continue enumerating }; GetNativeWindowHelper.EnumDesktopWindows(IntPtr.Zero, filter, IntPtr.Zero); if (collection.Count != 1) { //log error ReleaseWindow(); return null; } else return collection[0]; } public static void ReleaseWindow() { foreach (var item in collection) { item.ReleaseHandle(); } }

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  • Stretch video to full screen in a SurfaceView extension

    - by SS
    I have created a widget that is an extension of SurfaceView (very similar to [VideoView][1]) and I am working on a feature to stretch the video fully across the device screen when certain action is taken. I've looked at onMeasure function of VideoView and re-wrote it this way: @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { if (mStretchVideo) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); } else { int width = getDefaultSize(mVideoWidth, widthMeasureSpec); int height = getDefaultSize(mVideoHeight, heightMeasureSpec); if (mVideoWidth > 0 && mVideoHeight > 0) { if (mVideoWidth * height > width * mVideoHeight) { height = width * mVideoHeight / mVideoWidth; } else if (mVideoWidth * height < width * mVideoHeight) { width = height * mVideoWidth / mVideoHeight; } } setMeasuredDimension(width, height); } } This seems to work fine if I completely stop the video and start playing again. Now I am trying to force the refresh of this SurfaceView after setting the stretch flag so that the video gets stretched while it is playing, but I couldn't figure out how to force a refresh on SurfaceView. I tried android.view.View.invalidate(), android.view.View.refreshDrawableState() and calling android.view.View.measure(int, int) directly with different combinations but did not get any success. Any ideas?

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  • How to parse a custom XML-style error code response from a website

    - by user1870127
    I'm developing a program that queries and prints out open data from the local transit authority, which is returned in the form of an XML response. Normally, when there are buses scheduled to run in the next few hours (and in other typical situations), the XML response generated by the page is handled correctly by the java.net.URLConnection.getInputStream() function, and I am able to print the individual results afterwards. The problem is when the buses are NOT running, or when some other problem with my queries develops after it is sent to the transit authority's web server. When the authority developed their service, they came up with their own unique error response codes, which are also sent as XMLs. For example, one of these error messages might look like this: <Error xmlns:i="http://www.w3.org/2001/XMLSchema-instance"> <Code>3005</Code> <Message>Sorry, no stop estimates found for given values.</Message> </Error> (This code and similar is all that I receive from the transit authority in such situations.) However, it appears that URLConnection.getInputStream() and some of its siblings are unable to interpret this custom code as a "valid" response that I can handle and print out as an error message. Instead, they give me a more generic HTTP/1.1 404 Not Found error. This problem cascades into my program which then prints out a java.io.FileNotFoundException error pointing to the offending input stream. My question is therefore two-fold: 1. Is there a way to retrieve, parse, and print a custom XML-formatted error code sent by a web service using the plugins that are available in Java? 2. If the above is not possible, what other tools should I use or develop to handle such custom codes as described?

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  • Coda Slider scroll effect. Click button and change panel.

    - by vatismarty
    <?php echo $javascript->link('jquery-easing-1.3.pack'); ?> <?php echo $javascript->link('jquery-easing-compatibility.1.2.pack'); ?> <?php echo $javascript->link('coda-slider.1.1.1.pack'); ?> <script type="text/javascript"> var theInt = null; var $crosslink, $navthumb; var curclicked = 0; theInterval = function(cur){ clearInterval(theInt); if( typeof cur != 'undefined' ) curclicked = cur; $crosslink.removeClass("active-thumb"); $navthumb.eq(curclicked).parent().addClass("active-thumb"); $(".stripNav ul li a").eq(curclicked).trigger('click'); theInt = setInterval(function(){ $crosslink.removeClass("active-thumb"); $navthumb.eq(curclicked).parent().addClass("active-thumb"); $(".stripNav ul li a").eq(curclicked).trigger('click'); curclicked++; if( 6 == curclicked ) curclicked = 0; }, 3000); }; $(function(){ $("#main-photo-slider").codaSlider(); $navthumb = $(".nav-thumb"); $crosslink = $(".cross-link"); $navthumb .click(function() { var $this = $(this); theInterval($this.parent().attr('href').slice(1) - 1); return false; }); theInterval(); $(".stripViewer").mouseover(function(e) { $(this).stop(); }); }); </script> The actual slider is in this page. PROBLEM : The slider does not work when i click on the 2, 3, and 4th buttons. 1st button shows weird behaviour. Please help me fix this bug. The slider should take me to panel 3 if i click button 3

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  • Simplest way to handle and display errors in a Python Pylons controller without a helper class

    - by ensnare
    I have a class User() that throw exceptions when attributes are incorrectly set. I am currently passing the exceptions from the models through the controller to the templates by essentially catching exceptions two times for each variable. Is this a correct way of doing it? Is there a better (but still simple) way? I prefer not to use any third party error or form handlers due to the extensive database queries we already have in place in our classes. Furthermore, how can I "stop" the chain of processing in the class if one of the values is invalid? Is there like a "break" syntax or something? Thanks. >>> u = User() >>> u.name = 'Jason Mendez' >>> u.password = '1234' Traceback (most recent call last): File "<stdin>", line 1, in <module> File "topic/model/user.py", line 79, in password return self._password ValueError: Your password must be greater than 6 characters In my controller "register," I have: class RegisterController(BaseController): def index(self): if request.POST: c.errors = {} u = User() try: u.name = c.name = request.POST['name'] except ValueError, error: c.errors['name'] = error try: u.email = c.email = request.POST['email'] except ValueError, error: c.errors['email'] = error try: u.password = c.password = request.POST['password'] except ValueError, error: c.errors['password'] = error try: u.commit() except ValueError, error: pass return render('/register.mako')

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  • Elegantly handling constraint violations in EJB/JPA environment?

    - by hallidave
    I'm working with EJB and JPA on a Glassfish v3 app server. I have an Entity class where I'm forcing one of the fields to be unique with a @Column annotation. @Entity public class MyEntity implements Serializable { private String uniqueName; public MyEntity() { } @Column(unique = true, nullable = false) public String getUniqueName() { return uniqueName; } public void setUniqueName(String uniqueName) { this.uniqueName = uniqueName; } } When I try to persist an object with this field set to a non-unique value I get an exception (as expected) when the transaction managed by the EJB container commits. I have two problems I'd like to solve: 1) The exception I get is the unhelpful "javax.ejb.EJBException: Transaction aborted". If I recursively call getCause() enough times, I eventually reach the more useful "java.sql.SQLIntegrityConstraintViolationException", but this exception is part of the EclipseLink implementation and I'm not really comfortable relying on it's existence. Is there a better way to get detailed error information with JPA? 2) The EJB container insists on logging this error even though I catch it and handle it. Is there a better way to handle this error which will stop Glassfish from cluttering up my logs with useless exception information? Thanks.

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  • FFMpeg Error av_interleaved_write_frame():

    - by rajaneesh
    this my code . after running php code FFmpeg version 0.5, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/share/man --incdir=/usr/include --enable-libamr-nb --enable-libamr-wb --enable-libdirac --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-x11grab libavutil 49.15. 0 / 49.15. 0 libavcodec 52.20. 0 / 52.20. 0 libavformat 52.31. 0 / 52.31. 0 libavdevice 52. 1. 0 / 52. 1. 0 libswscale 0. 7. 1 / 0. 7. 1 libpostproc 51. 2. 0 / 51. 2. 0 built on Nov 6 2009 19:05:03, gcc: 4.1.2 20080704 (Red Hat 4.1.2-46) Seems stream 0 codec frame rate differs from container frame rate: 50.00 (50/1) - 25.00 (25/1) Input #0, flv, from 'demo.flv': Duration: 00:00:30.83, start: 0.000000, bitrate: 546 kb/s Stream #0.0: Video: h264, yuv420p, 640x360 [PAR 1:1 DAR 16:9], 546 kb/s, 25 tbr, 1k tbn, 50 tbc Stream #0.1: Audio: aac, 44100 Hz, stereo, s16 Output #0, image2, to 'demo.jpg': Stream #0.0: Video: mjpeg, yuvj420p, 640x360 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 1 tbc Stream mapping: Stream #0.0 - #0.0 Press [q] to stop encoding av_interleaved_write_frame(): I/O error occurred Usually that means that input file is truncated and/or corrupted.

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  • Getting Argument Names In Ruby Reflection

    - by Joe Soul-bringer
    I would like to do some fairly heavy-duty reflection in the Ruby programming language. I would like to create a function which would return the names of the arguments of various calling functions higher up the call stack (just one higher would be enough but why stop there?). I could use Kernel.caller go to the file and parse the argument list but that would be ugly and unreliable. The function that I would like would work in the following way: module A def method1( tuti, fruity) foo end def method2(bim, bam, boom) foo end def foo print caller_args[1].join(",") #the "1" mean one step up the call stack end end A.method1 #prints "tuti,fruity" A.method2 #prints "bim, bam, boom" I would not mind using ParseTree or some similar tool for this task but looking at Parsetree, it is not obvious how to use it for this purpose. Creating a C extension like this is another possibility but it would be nice if someone had already done it for me. Edit2: I can see that I'll probably need some kind of C extension. I suppose that means my question is what combination of C extension would work most easily. I don't think caller+ParseTree would be enough by themselves. As far as why I would like to do this goes, rather than saying "automatic debugging", perhaps I should say that I would like to use this functionality to do automatic checking of the calling and return conditions of functions. Say def add x, y check_positive return x + y end Where check_positive would throw an exception if x and y weren't positive (obviously, there would be more to it than that but hopefully this gives enough motivation)

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  • Cannot hide a UIButton - Please help!

    - by Neurofluxation
    Hey again, I have the following code: visitSite.hidden = YES; For some reason, when I click a UIButton and call this piece of code, the visitSite button does not hide. The code is within this block: -(IBAction)welcomeButtonPressed:(id)sender { [UIButton beginAnimations:@"welcomeAnimation" context:NULL]; [UIButton setAnimationDuration:1.5]; [UIButton SetAnimationDidStopSelector:@selector(nowHideThisSiteButton:finished:context:)]; [UIButton setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES]; ((UIView *)sender).hidden = YES; [UIButton commitAnimations]; } and the stop selector below: -(void)nowHideThisSiteButton:(NSString *)animationID finished:(BOOL *)finished context:(void *)context { visitSite.hidden = YES; } I've also tried [visitSite setHidden:YES]; and that fails as well. ALSO I've noticed that the setAnimationDidStopSelector does not get called at all. Also, visitSite (when NSLogged) equals: <UIButton: 0x1290f0; frame = (0 0; 320 460); opaque = NO; autoresize = RM+BM; layer = <CALayer: 0x1290f0>> visitSite.hidden (when NSLogged) equals: NULL Any more ideas? :(

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  • bash and flock (file lock) - Doesn't seem to be locking....

    - by Rory
    I am playing with using flock, a bash command for file locks to prevent 2 different instances of the code from running more than once. I am using this testing code: ( ( flock -x 200 ; sleep 10 ; echo "original finished" ; ) 200>./test.lock ) & ( sleep 2 ; ( flock -x -w 2 200 ; echo "a finished" ) 200>./test.lock ) & I am running 2 subshells (backgrounded). The (flock NUM; ...) NUM>FILE syntax is from flock's man page. I expect that the first subshell will get an exclusive lock on test.lock, then wait 10 seconds, then print "original finished", all the time holding the lock. The second subshell will start at more or less the same time, wait 2 seconds, then try to get a lock on test.lock, but timeout after 2 seconds. If it gets a lock, then it'll print "a finished". If it doesn't get the lock, that subshell should stop, and nothing should be printed. Since the first subshell is waiting longer, it will keep the lock for 10 seconds, so the second subshell should not get the lock, and shouldn't finish. i.e. one should see "original finished" printed and not both. What actually happens is that "a finished" is printed, then "original finished" is printed. This implies that that the second subshell is either (a) not using the same lock as the first subhsell or (b) that it fails to get the lock, but continues to execute or (c) something else. Why don't those locks work?

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  • Progressive MP4 video issues in Flash- Video stops rendering

    - by Conor
    I'm currently working on a flash project that has an intro video that plays before heading into the main app. This video is an H.264 .mp4, 1550x540, and around 10MB. The problem thats currently driving me insane is that when I test it, occasionally the video will begin playing, and then suddenly stop rendering the video frames, leaving the audio playing in the background with nothing on screen. Once the file is played through fully (based on listening to the audio), my playback complete event fires like it should, but I can't find any info of people having similar issues. Attached is a trace of the .mp4 metadata in case that helps. videoframerate : 24 audiochannels : 2 audiocodecid : mp4a audiosamplerate : 48000 trackinfo: 0: length : 608000 timescale : 24000 language : eng sampledescription: 0: sampletype : avc1 1: length : 1218560 timescale : 48000 language : eng sampledescription: 0: sampletype : mp4a duration : 25.386666666666667 width : 1540 videocodecid : avc1 seekpoints: 0: time : 0 offset : 13964 1: time : 0.333 offset : 16893 2: time : 0.667 offset : 34212 ... 73: time : 24.333 offset : 9770329 74: time : 24.667 offset : 9845709 75: time : 25 offset : 9895215 moovposition : 32 height : 540 avcprofile : 77 avclevel : 51 aacaot : 2 This has been driving me absolutely insane... any help would be much appreciated!

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  • In Java, howd do I iterate through lines in a textfile from back to front

    - by rogue780
    Basically I need to take a text file such as : Fred Bernie Henry and be able to read them from the file in the order of Henry Bernie Fred The actual file I'm reading from is 30MB and it would be a less than perfect solution to read the whole file, split it into an array, reverse the array and then go from there. It takes way too long. My specific goal is to find the first occurrence of a string (in this case it's "InitGame") and then return the position beginning of the beginning of that line. I did something like this in python before. My method was to seek to the end of the file - 1024, then read lines until I get to the end, then seek another 1024 from my previous starting point and, by using tell(), I would stop when I got to the previous starting point. So I would read those blocks backwards from the end of the file until I found the text I was looking for. So far, I'm having a heck of a time doing this in Java. Any help would be greatly appreciated and if you live near Baltimore it may even end up with you getting some fresh baked cookies. Thanks!

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  • Jquery ajaxStart doesnt get triggered

    - by gnomixa
    This code $("#loading").ajaxStart(function() { alert("start"); $(this).show(); }); in my mark-up <div style="text-align:center;"><img id="loading" src="../images/common/loading.gif" alt="" /></div> Here is the full ajax request: $.ajax({ type: "POST", url: "http://localhost/WebServices/Service.asmx/GetResults", data: jsonText, contentType: "application/json; charset=utf-8", dataType: "json", success: function(response) { var results = (typeof response.d) == 'string' ? eval('(' + response.d + ')') : response.d; PopulateTree(results); }, error: function(xhr, status, error) { var msg = JSON.parse(xhr.responseText); alert(msg.Message); } }); $("#loading").ajaxStart(function() { alert("start"); $(this).show(); }); $("#loading").ajaxStop(function() { alert("stop"); $(this).hide(); $("#st-tree-container").show(); }); never fires alert "start" even though the gif is shown to rotate. AjaxStop gets triggered as expected. Any ideas why?

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  • How can Safari be prevented from scrolling an overflow:hidden iframe?

    - by Alexander Ljungberg
    With Safari you can disable most iframe scrolling by setting style="overflow: hidden;" on the iframe. However, if you click in the iframe and move the mouse the content scrolls anyhow. Example: <html> <body> <iframe style="width: 100%; height:100px; overflow: hidden;" scrolling="no" src="scrollcontent.html"> </iframe> </body> </html> scrollcontent.html: <html scroll="no" style="overflow:hidden;"> <body scroll="no" style="overflow:hidden;"> <div style="background-color: green; height:100px;">A</div> <div style="background-color: red; height:100px;">B</div> </body> </html> In this example, the iframe should only show a green area and it should be impossible to reveal the red area. This is mostly true: there is no scrollbar, the mouse wheel doesn't do anything and neither do the arrow keys. However click and drag still scrolls the view. This is particularly noticeable when selecting text. Does anyone know any trick to stop Safari from doing this?

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  • when updating location.hash in Chrome the jQuery animation "freezes" for a second

    - by ubunut
    I'm trying to create a sort of "virtual gallery". I'm using Coda Slider 2.0 & jQuery v1.4.2 It behaves perfectly in IE, FF & Safari, but Chrome seems to reload/hang for a second when setting location.hash. This causes the jQuery animation to freeze for a second :S Example: http://hardyernst.dk/gallery.html try clicking on the navigation links above the pictures. The jQuery code that is being executed when clicking a navigation link: $('#coda-nav-' + sliderCount + ' a').each(function(z) { // What happens when a nav link is clicked $(this).bind("click", function() { offset = -(panelWidth*z); navClicks++; $(this).addClass('current').parents('ul').find('a').not($(this)).removeClass('current'); alterPanelHeight(z); currentPanel = z + 1; $('.panel-container', slider).stop().animate({ left: offset }, settings.slideEaseDuration, settings.slideEaseFunction, function(){ if (!settings.crossLinking) { return false; } // Don't change the URL hash unless cross-linking is specified }); }); }); if I add return false; at the end of the function. The animation will slide smoothly :)... BUT as you might have guessed the location.hash value remains unchanged :( I have tried setting the location.hash earlier in the function alas it did not change the behavior in Chrome Would be immensely grateful for any help :) Regards Ubunut

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