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• What's the best Scala build system?

  - by gatoatigrado

  I've seen questions about IDE's here -- Which is the best IDE for Scala development? and What is the current state of tooling for Scala?, but I've had mixed experiences with IDEs. Right now, I'm using the Eclipse IDE with the automatic workspace refresh option, and KDE 4's Kate as my text editor. Here are some of the problems I'd like to solve: use my own editor IDEs are really geared at everyone using their components. I like Kate better, but the refresh system is very annoying (it doesn't use inotify, rather, maybe a 10s polling interval). The reason I don't use the built-in text editor is because broken auto-complete functionalities cause the IDE to hang for maybe 10s. rebuild only modified files The Eclipse build system is broken. It doesn't know when to rebuild classes. I find myself almost half of the time going to project-clean. Worse, it seems even after it has finished building my project, a few minutes later it will pop up with some bizarre error (edit - these errors appear to be things that were previously solved with a project clean, but then come back up...). Finally, setting "Preferences / Continue launch if project contains errors" to "prompt" seems to have no effect for Scala projects (i.e. it always launches even if there are errors). build customization I can use the "nightly" release, but I'll want to modify and use my own Scala builds, not the compiler that's built into the IDE's plugin. It would also be nice to pass [e.g.] -Xprint:jvm to the compiler (to print out lowered code). fast compiling Though Eclipse doesn't always build right, it does seem snappy -- even more so than fsc. I looked at Ant and Maven, though haven't employed either yet (I'll also need to spend time solving #3 and #4). I wanted to see if anyone has other suggestions before I spend time getting a suboptimal build system working. Thanks in advance! UPDATE - I'm now using Maven, passing a project as a compiler plugin to it. It seems fast enough; I'm not sure what kind of jar caching Maven does. A current repository for Scala 2.8.0 is available [link]. The archetypes are very cool, and cross-platform support seems very good. However, about compile issues, I'm not sure if fsc is actually fixed, or my project is stable enough (e.g. class names aren't changing) -- running it manually doesn't bother me as much. If you'd like to see an example, feel free to browse the pom.xml files I'm using [github]. UPDATE 2 - from benchmarks I've seen, Daniel Spiewak is right that buildr's faster than Maven (and, if one is doing incremental changes, Maven's 10 second latency gets annoying), so if one can craft a compatible build file, then it's probably worth it...

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• MacRuby + Interface Builder: How to display, then close, then display a window again

  - by Derick Bailey

  I'm a complete n00b with MacRuby and Cocoa, though I've got more than a year of Ruby experience, so keep that in mind when answering - I need lots of details and explanation. :) I've set up a simple project that has 2 windows in it, both of which are built with Interface Builder. The first window is a simple list of accounts using a table view. It has a "+" button below the table. When I click the + button, I want to show an "Add New Account" window. I also have an AccountsController < NSWindowController and a AddNewAccountController class, set up as the delegates for these windows, with the appropriate button click methods wired up, and outlets to reference the needed windows. When I click the "+" button in the Accounts window, I have this code fire: @add_account.center @add_account.display @add_account.makeKeyAndOrderFront(nil) @add_account.orderFrontRegardless this works great the first time I click the + button. Everything shows up, I'm able to enter my data and have it bind to my model. however, when I close the add new account form, things start going bad. if I set the add new account window to release on close, then the second time I click the + button, the window will still pop up but it's frozen. i can't click any buttons, enter any data, or even close the form. i assume this is because the form's code has been released, so there is no message loop processing the form... but i'm not entirely sure about this. if i set the add new account window to not release on close, then the second time i click the + button, the window shows up fine and it is usable - but it still has all the data that i had previously entered... it's still bound to my previous Account class instance. what am I doing wrong? what's the correct way to create a new instance of the Add New Account form, create a new Account model, bind that model to the form and show the form, when I click the + button on the Accounts form? ... this is all being done on OSX 10.6.6, 64bit, with XCode 3.2.4

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• Yes, another thread question...

  - by Michael

  I can't understand why I am loosing control of my GUI even though I am implementing a thread to play a .wav file. Can someone pin point what is incorrect? #!/usr/bin/env python import wx, pyaudio, wave, easygui, thread, time, os, sys, traceback, threading import wx.lib.delayedresult as inbg isPaused = False isStopped = False class Frame(wx.Frame): def __init__(self): print 'Frame' wx.Frame.__init__(self, parent=None, id=-1, title="Jasmine", size=(720, 300)) #initialize panel panel = wx.Panel(self, -1) #initialize grid bag sizer = wx.GridBagSizer(hgap=20, vgap=20) #initialize buttons exitButton = wx.Button(panel, wx.ID_ANY, "Exit") pauseButton = wx.Button(panel, wx.ID_ANY, 'Pause') prevButton = wx.Button(panel, wx.ID_ANY, 'Prev') nextButton = wx.Button(panel, wx.ID_ANY, 'Next') stopButton = wx.Button(panel, wx.ID_ANY, 'Stop') #add widgets to sizer sizer.Add(pauseButton, pos=(1,10)) sizer.Add(prevButton, pos=(1,11)) sizer.Add(nextButton, pos=(1,12)) sizer.Add(stopButton, pos=(1,13)) sizer.Add(exitButton, pos=(5,13)) #initialize song time gauge #timeGauge = wx.Gauge(panel, 20) #sizer.Add(timeGauge, pos=(3,10), span=(0, 0)) #initialize menuFile widget menuFile = wx.Menu() menuFile.Append(0, "L&oad") menuFile.Append(1, "E&xit") menuBar = wx.MenuBar() menuBar.Append(menuFile, "&File") menuAbout = wx.Menu() menuAbout.Append(2, "A&bout...") menuAbout.AppendSeparator() menuBar.Append(menuAbout, "Help") self.SetMenuBar(menuBar) self.CreateStatusBar() self.SetStatusText("Welcome to Jasime!") #place sizer on panel panel.SetSizer(sizer) #initialize icon self.cd_image = wx.Image('cd_icon.png', wx.BITMAP_TYPE_PNG) self.temp = self.cd_image.ConvertToBitmap() self.size = self.temp.GetWidth(), self.temp.GetHeight() wx.StaticBitmap(parent=panel, bitmap=self.temp) #set binding self.Bind(wx.EVT_BUTTON, self.OnQuit, id=exitButton.GetId()) self.Bind(wx.EVT_BUTTON, self.pause, id=pauseButton.GetId()) self.Bind(wx.EVT_BUTTON, self.stop, id=stopButton.GetId()) self.Bind(wx.EVT_MENU, self.loadFile, id=0) self.Bind(wx.EVT_MENU, self.OnQuit, id=1) self.Bind(wx.EVT_MENU, self.OnAbout, id=2) #Load file usiing FileDialog, and create a thread for user control while running the file def loadFile(self, event): foo = wx.FileDialog(self, message="Open a .wav file...", defaultDir=os.getcwd(), defaultFile="", style=wx.FD_MULTIPLE) foo.ShowModal() self.queue = foo.GetPaths() self.threadID = 1 while len(self.queue) != 0: self.song = myThread(self.threadID, self.queue[0]) self.song.start() while self.song.isAlive(): time.sleep(2) self.queue.pop(0) self.threadID += 1 def OnQuit(self, event): self.Close() def OnAbout(self, event): wx.MessageBox("This is a great cup of tea.", "About Jasmine", wx.OK | wx.ICON_INFORMATION, self) def pause(self, event): global isPaused isPaused = not isPaused def stop(self, event): global isStopped isStopped = not isStopped class myThread (threading.Thread): def __init__(self, threadID, wf): self.threadID = threadID self.wf = wf threading.Thread.__init__(self) def run(self): global isPaused global isStopped self.waveFile = wave.open(self.wf, 'rb') #initialize stream self.p = pyaudio.PyAudio() self.stream = self.p.open(format = self.p.get_format_from_width(self.waveFile.getsampwidth()), channels = self.waveFile.getnchannels(), rate = self.waveFile.getframerate(), output = True) self.data = self.waveFile.readframes(1024) isPaused = False isStopped = False #main play loop, with pause event checking while self.data != '': # while isPaused != True: # if isStopped == False: self.stream.write(self.data) self.data = self.waveFile.readframes(1024) # elif isStopped == True: # self.stream.close() # self.p.terminate() self.stream.close() self.p.terminate() class App(wx.App): def OnInit(self): self.frame = Frame() self.frame.Show() self.SetTopWindow(self.frame) return True def main(): app = App() app.MainLoop() if __name__=='__main__': main()

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• jquery ui autocomplete does't close options menu if there is no focus when ajax returns

  - by Uri

  I'm using jquery ui autocomplete widget with ajax, and on noticed the following problem. Background: In order for the user to be able to focus on the autocomplete and get the options without typing anything, I use the focus event: autoComp.focus(function() { $(this).autocomplete("search", "");} However this produces the following effect: when the user clicks, an ajax request is being sent. While waiting for the response, the user then clicks elsewhere and the autocomplete is blurred. But as soon as the response returns, the options menu pops out, even though the autocomplete has no focus. In order to make it go away the user has to click once inside, and again outside the autocomplete, which is a bit annoying. any ideas how I prevent this? EDIT: I solved this in a very ugly way by building another mediator function that knows the element's ID, and this function calls the ajax function with the ID, which on success check the focus of the element, and returns null if it's not focused. It's pretty ugly and I'm still looking for alternatives. EDIT#2: Tried to do as Wlliam suggested, still doesn't work.. the xhr is undefined when blurring. Some kind of a problem with the this keyword, maybe it has different meanings if I write the getTags function outside of the autocomplete? this.autocomplete = $('.tab#'+this.id+' #tags').autocomplete({ minLength: 0, autoFocus: true, source: getTags, select: function(e, obj) { tab_id = $(this).parents('.tab').attr('id'); tabs[tab_id].addTag(obj.item.label, obj.item.id, false); $(this).blur(); // This is done so that the options menu won't pop up again. return false; // This is done so that the value will not stay in the input box after selection. }, open: function() {}, close: function() {} }); $('.tab#'+this.id+' #tags').focus(function() { $(this).autocomplete("search", ""); }); $('.tab#'+this.id+' #tags').blur(function() { console.log('blurring'); var xhr = $(this).data('xhr'); // This comes out undefined... :( if (xhr) { xhr.abort(); }; $(this).removeClass('ui-autocomplete-loading'); }); and this is the getTags function copied to the source keyword: function getTags(request, response) { console.log('Getting tags.'); $(this).data('xhr', $.ajax({ url: '/rpc', dataType: 'json', data: { action: 'GetLabels', arg0: JSON.stringify(request.term) }, success: function(data) { console.log('Tags arrived:'); tags = []; for (i in data) { a = {} a.id = data[i]['key']; a.label = data[i]['name']; tags.push(a); } response(tags); } })); console.log($(this).data('xhr')); }

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• Windows 7 - pydoc from cmd

  - by Random_Person

  Okay, I'm having one of those moments that makes me question my ability to use a computer. This is not the sort of question I imagined asking as my first SO post, but here goes. Started on Zed's new "Learn Python the Hard Way" since I've been looking to get back into programming after a 10 year hiatus and python was always what I wanted. This book has really spoken to me. That being said, I'm having a serious issue with pydoc from the command. I've got all the directories in c:/python26 in my system path and I can execute pydoc from the command line just fine regardless of pwd - but it accepts no arguments. Doesn't matter what I type, I just get the standard pydoc output telling me the acceptable arguments. Any ideas? For what it's worth, I installed ActivePython as per Zed's suggestion. C:\Users\Chevee>pydoc file pydoc - the Python documentation tool pydoc.py <name> ... Show text documentation on something. <name> may be the name of a Python keyword, topic, function, module, or package, or a dotted reference to a class or function within a module or module in a package. If <name> contains a '\', it is used as the path to a Python source file to document. If name is 'keywords', 'topics', or 'modules', a listing of these things is displayed. pydoc.py -k <keyword> Search for a keyword in the synopsis lines of all available modules. pydoc.py -p <port> Start an HTTP server on the given port on the local machine. pydoc.py -g Pop up a graphical interface for finding and serving documentation. pydoc.py -w <name> ... Write out the HTML documentation for a module to a file in the current directory. If <name> contains a '\', it is treated as a filename; if it names a directory, documentation is written for all the contents. C:\Users\Chevee> EDIT: New information, pydoc works just fine in PowerShell. As a linux user, I have no idea why I'm trying to use cmd anyways--but I'd still love to figure out what's up with pydoc and cmd. EDIT 2: More new information. In cmd... c:\>python c:/python26/lib/pydoc.py file ...works just fine. Everything works just fine with just pydoc in PowerShell without me worrying about pwd, or extensions or paths.

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• JQuery in ASP.NET - Form Validation Issue

  - by user1026288

  It's not working at all and I'm not sure why. Ideally I'd like to have all the errors pop up in a modal dialog box. But right now I can't even get it to work normally. Any help would be appreciated. Thanks. HTML <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js" type="text/javascript"></script> <script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.min.js" type="text/javascript"></script> <script src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.min.js" type="text/javascript"></script> <script src="../Scripts/Frame.js" type="text/javascript"></script> </head> <body runat="server" id="bodyLogin"> <div runat="server" id="frameLogin"> <form runat="server" id="formLogin"> <asp:CheckBox runat="server" ID="checkboxRemember" /> <div><span id="un">Username</span><div id="forgotUsername">?</div><br /> <asp:TextBox runat="server" ID="textUsername" Name="username" /></div> <div><span id="pw">Password</span><div id="forgotPassword">?</div><br /> <asp:TextBox runat="server" ID="textPassword" Name="password" TextMode="Password" /></div> <asp:Button runat="server" ID="buttonLogin" Text="L" /> <asp:Button runat="server" ID="buttonRegister" Text="R" /> </form> </div> <div id="dialog" title="Errors" style="display:none;"><ul></ul></div> </body> </html> JQuery <script type="text/javascript"> $(function () { $("#formLogin").validate({ rules: { username: { required:true, minlength:3, maxlength:15 }, password: { required:true, minlength:6, maxlength:15 }, }, messages: { username: { required: "Username is required.", minlength: "Username minimum length is 3 characters.", maxlength: "Username maxumum length is 15 characters." }, password: { required: "Password is required.", minlength: "Password minumum length is 6 characters.", maxlength: "Password maximum length is 15 characters." } } }); }); </script>

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• shuffling array javascript

  - by Dennis Callanan

  <!doctype html> <html lang="en"> <head> <meta charset="utf=8" /> <title>Blackjack</title> <link rel="stylesheet" href="blackjack.css" /> <script type="text/javascript"> var H2 = 2; var S2 = 2; var D2 = 2; var C2 = 2; var H3 = 3; var S3 = 3; var D3 = 3; var C3 = 3; var deck = new Array(H2, S2, D2, C2, H3, S3, D3, C3); var new_deck = new Array(); var r; document.write("deck = ") for (r =0; r<deck.length; r++){ document.write(deck[r]); } document.write("</br>") document.write("new deck = ") for (r=0; r<new_deck.length; r++){ document.write(new_deck[r]); } document.write("</br>") for (r=0;r<deck.length;r++){ var randomindex = Math.floor(Math.random()*deck.length); new_deck.push(randomindex) deck.pop(randomindex) } document.write("deck = ") for (r =0; r<deck.length; r++){ document.write(deck[r]); } document.write("</br>") document.write("new deck = ") for (r=0; r<new_deck.length; r++){ document.write(new_deck[r]); } document.write("</br>") </script> </head> <body> </body> </html> Obviously this isn't the full Blackjack game here. It's just a test to see if shuffling the array works by printing the contents of both decks (arrays) before and after the shuffle. I'm only using 8 cards at the moment, 4 2's and 4 3's. What I am getting from this is: deck = 22223333 new deck = deck = 2222 new deck = 7502 What I'm hoping to get is: deck = 22223333 new deck = deck = new deck = 23232323 (or any of the 8 numbers, generated randomly) So it should be shuffling those 8 cards, what am I doing wrong? I'm only new to javascript but I've used some python before. I've done something similar in python and worked perfectly, but I'm not sure what's wrong here. Thanks for any answers in advance!!

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• How do I display a jquery dialog box before the entire page is loaded?

  - by obarshay

  On my site a number of operations can take a long time to complete. When I know a page will take a while to load, I would like to display a progress indicator while the page is loading. Ideally I would like to say something along the lines of: $("#dialog").show("progress.php"); and have that overlay on top of the page that is being loaded (disappearing after the operation is completed). Coding the progress bar and displaying progress is not an issue, the issue is getting a progress indicator to pop up WHILE the page is being loaded. I have been trying to use JQuery's dialogs for this but they only appear after the page is already loaded. This has to be a common problem but I am not familiar enough with JavaScript to know the best way to do this. Here's simple example to illustrate the problem. The code below fails to display the dialog box before the 20 second pause is up. I have tried in Chrome and Firefox. In fact I don't even see the "Please Wait..." text. Here's the code I am using: <html> <head> <link type="text/css" href="http://jqueryui.com/latest/themes/base/ui.all.css" rel="stylesheet" /> <script type="text/javascript" src="http://jqueryui.com/latest/jquery-1.3.2.js"></script> <script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.core.js"></script> <script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.dialog.js"></script> </head> <body> <div id="please-wait">My Dialog</div> <script type="text/javascript"> $("#please-wait").dialog(); </script> <?php flush(); echo "Waiting..."; sleep(20); ?> </body> </html>

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• Windows Question: RunOnce/Second Boot Issues [closed]

  - by Greg

  Moved to Super User: Windows Question: RunOnce/Second Boot Issues I am attempting to create a Windows XP SP3 image that will run my application on Second Boot. Here is the intended workflow. 1) Run Image Prep Utility (I wrote) on windows to add my runonce entries and clean a few things up. 2) Reboot to ghost, make image file. 3) Package into my ISO and distribute. 4) System will be imaged by user. 5) On first boot, I have about 5 things that run, one of which includes a driver updater (I wrote) for my own specific devices. 6) One of the entries inside of HKCU/../runonce is a reg file, which adds another key to HKLM/../runonce. This is how second boot is acquired. 7) As a result of the driver updater, user is prompted to reboot. 8) My application is then launched from HKLM/../runonce on second boot. This workflow works perfectly, except for a select few legacy systems that contain devices that cause the add hardware wizard to pop up. When the add hardware wizard pops up is when I begin to see problems. It's important to note, that if I manually inspect the registry after the add hardware wizard pops up, it appears as I would expect, with all the first boot scripts having run, and it's sitting in a state I would correctly expect it to be in for a second boot scenario. The problem comes when I click next on the add hardware wizard, it seems to re-run the single entry I've added, and re-executes the runonce scripts. (only one script now as it's already executed and cleared out the initial entries). This causes my application to open as if it were a second boot, only when next is clicked on the add hardware wizard. If I click cancel, and reboot, then it also works as expected. I don't care as much about other solutions, because I could design a system that doesn't fully rely on Microsoft's registry. I simply can't find any information as to WHY this is happening. I believe this is some type of Microsoft issue that's presenting itself as a result of an overstretched image that's expected to support too many legacy platforms, but any help that can be provided would be appreciated. Thanks,

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• ASP.NET MVC CRUD PartialView Popup Issue

  - by Smiley Face

  I am creating an MVC website which makes use of Partial Views on Popups to handle all my CRUD transactions. Please note that my application can already handle these CRUD operations perfectly (LINQ-To-Entity). However, I have a problem with my popup forms. Below is the code from my _Add.cshtml: @model MyStore.Models.MyModels.ProductsModel @{ Layout = null; } @using (Ajax.BeginForm("_Add", "Products", new AjaxOptions { InsertionMode = InsertionMode.Replace, HttpMethod = "POST", OnSuccess = "addSuccess" }, new { @id = "addForm" })) { @Html.ValidationSummary(true) <div id="add-message" class="error invisible"></div> <fieldset> <legend>Products</legend> @Html.HiddenFor(m => Model.ProductCode) <div class="editor-label"> @Html.LabelFor(model => model.ProductName) </div> <div class="editor-field"> @Html.EditorFor(model => model.ProductName) @Html.ValidationMessageFor(model => model.ProductName) </div> <div class="editor-label"> @Html.LabelFor(model => model.Price) </div> <div class="editor-field"> @Html.TextBoxFor(model => model.Price) @Html.ValidationMessageFor(model => model.Price) </div> </fieldset> } Below is the code from my Controller: [HttpGet] public ActionResult _Add(string productCode) { ProductsModel model = newProductsModel(); model.ProductCode = ProductCode ; return PartialView(model); } [HttpPost] public JsonResult _Add(ProductsModel model) { if (ModelState.IsValid) { ProductsManager prod = new ProductsManager(); Products pa = new Products(); pa.ProductCode = model.ProductCode; pa.ProductName = model.ProductName; pa.Price = model.Price; prod.AddProduct(pa); return Json(HelperClass.SuccessResponse(pa), JsonRequestBehavior.AllowGet); } else { return Json(HelperClass.ErrorResponse("Please review your form"), JsonRequestBehavior.DenyGet); } } Please note that the _Add.cshtml is a partial view which is being rendered through a Popup.js which I found on the internet. It is rendered through this code: @Html.ActionLink("[Add Product]", "_Add", new { ProductCode = @ViewData["ProductCode"] }, new { @class = "editLink" }) This works okay. I mean it adds product to my database. But my problem is upon clicking the Proceed button, I get this pop-up download dialog from the page: Can somebody please help me with this? I have a hunch it's because of the HttpMethod i'm using (POST, PUT, GET, DELETE) but i'm not really sure which one is right to use or if it really is the problem in the first place. Any help would be greatly appreciated! PS. Sorry for the long post.

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• Multi-threaded Pooled Allocators

  - by Darren Engwirda

  I'm having some issues using pooled memory allocators for std::list objects in a multi-threaded application. The part of the code I'm concerned with runs each thread function in isolation (i.e. there is no communication or synchronization between threads) and therefore I'd like to setup separate memory pools for each thread, where each pool is not thread-safe (and hence fast). I've tried using a shared thread-safe singleton memory pool and found the performance to be poor, as expected. This is a heavily simplified version of the type of thing I'm trying to do. A lot has been included in a pseudo-code kind of way, sorry if it's confusing. /* The thread functor - one instance of MAKE_QUADTREE created for each thread */ class make_quadtree { private: /* A non-thread-safe memory pool for int linked list items, let's say that it's * something along the lines of BOOST::OBJECT_POOL */ pooled_allocator<int> item_pool; /* The problem! - a local class that would be constructed within each std::list as the * allocator but really just delegates to ITEM_POOL */ class local_alloc { public : //!! I understand that I can't access ITEM_POOL from within a nested class like //!! this, that's really my question - can I get something along these lines to //!! work?? pointer allocate (size_t n) { return ( item_pool.allocate(n) ); } }; public : make_quadtree (): item_pool() // only construct 1 instance of ITEM_POOL per // MAKE_QUADTREE object { /* The kind of data structures - vectors of linked lists * The idea is that all of the linked lists should share a local pooled allocator */ std::vector<std::list<int, local_alloc>> lists; /* The actual operations - too complicated to show, but in general: * * - The vector LISTS is grown as a quadtree is built, it's size is the number of * quadtree "boxes" * * - Each element of LISTS (each linked list) represents the ID's of items * contained within each quadtree box (say they're xy points), as the quadtree * is grown a lot of ID pop/push-ing between lists occurs, hence the memory pool * is important for performance */ } }; So really my problem is that I'd like to have one memory pool instance per thread functor instance, but within each thread functor share the pool between multiple std::list objects.

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• Question about POP3 message termination octet

  - by user361633

  This is from the POP3 RFC. "Responses to certain commands are multi-line. In these cases, which are clearly indicated below, after sending the first line of the response and a CRLF, any additional lines are sent, each terminated by a CRLF pair. When all lines of the response have been sent, a final line is sent, consisting of a termination octet (decimal code 046, ".") and a CRLF pair. If any line of the multi-line response begins with the termination octet, the line is "byte-stuffed" by pre-pending the termination octet to that line of the response. Hence a multi-line response is terminated with the five octets "CRLF.CRLF". When examining a multi-line response, the client checks to see if the line begins with the termination octet. If so and if octets other than CRLF follow, the first octet of the line (the termination octet) is stripped away. If so and if CRLF immediately follows the termination character, then the response from the POP server is ended and the line containing ".CRLF" is not considered part of the multi-line response." Well, i have problem with this, for example gmail sometimes sends the termination octet and then in the NEXT LINE sends the CRLF pair. For example: "+OK blah blah" "blah blah." "\r\n" That's very rare, but it happens sometimes, so obviously i'm unable to determine the end of the message in such case, because i'm expecting a line that consists of '.\r\n'. Seriously, is Gmail violating the POP3 protocol or i'm doing something wrong? Also i have a second question, english is not my first language so i cannot understand that completely: "If any line of the multi-line response begins with the termination octet, the line is "byte-stuffed" by pre-pending the termination octet to that line of the response. Hence a multi-line response is terminated with the five octets "CRLF.CRLF"." When exactly CRLF.CRLF is used? Can someone gives me a simple example? The rfc says that is used when any line of the response begins with the termination octet. But i don't see any lines that starts with '.' in the messages that are terminated with CRLF.CRLF. I checked that. Maybe i don't understand something, that's why i'm asking.

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• Javascript terminates after trying to select data from an object passed to a function

  - by Silmaril89

  Here is my javascript: $(document).ready(function(){ var queries = getUrlVars(); $.get("mail3.php", { listid: queries["listid"], mindex: queries["mindex"] }, showData, 'html'); }); function showData(data) { var response = $(data).find("#mailing").html(); if (response == null) { $("#results").html("<h3>Server didn't respond, try again.</h3>"); } else if (response.length) { var old = $("#results").html(); old = old + "<br /><h3>" + response + "</h3>"; $("#results").html(old); var words = response.split(' '); words[2] = words[2] * 1; words[4] = words[4] * 1; if (words[2] < words[4]) { var queries = getUrlVars(); $.get("mail3.php", { listid: queries["listid"], mindex: words[2] }, function(data){showData(data);}, 'html'); } else { var done = $(data).find("#done").html(); old = old + "<br />" + done; $("#results").html(old); } } else { $("#results").html("<h3>Server responded with an empty reply, try again.</h3>"); } } function getUrlVars() { var vars = [], hash; var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&'); for (var i = 0; i < hashes.length; i++) { hash = hashes[i].split('='); vars.push(hash[0]); vars[hash[0]] = hash[1]; } return vars; } After the first line in showData: var response = $(data).find("#mailing").html(); the javascript stops. If I put an alert before it, the alert pops up, after it, it doesn't pop up. There must be something wrong with using $(data), but why? Any ideas would be appreciated.

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• Simple Modal with Autocomplete in ASP.NET

  - by DanielJaymes

  Hello, I am quite new to this so any help is very much appreciated. I am generating a modal pop using Simple Modal, this works ok. I now want to add jquery autocomplete to the element txtEmail. When I run the page outside of Simple Modal I can use Autocomplete, however when the page is loaded through Simple Modal it does not work. I have checked to ensure the element is loaded, and it is allowing me to change the text color, but I can not add autocomplete to it. The code is /** * @author Daniel */ jQuery(function($) { $("input.ema, a.ema").click(function(e) { e.preventDefault(); $("#osx-modal-content").modal({ appendTo: 'form', overlayId: 'osx-overlay', containerId: 'osx-container', closeHTML: '<div class="close"><a href="#" class="simplemodal-close">X</a></div>', minHeight: 80, opacity: 65, position: ['0', ], overlayClose: true, onOpen: OSX.open, onClose: OSX.close, onShow: OSX.show }); }); var OSX = { container: null, open: function(d) { var self = this; $.ajax({ url: "/Message/UserMessage/", type: 'GET', dataType: 'html', // <-- to expect an html response success: function(result) { var data = "Core Selectors Attributes Traversing Manipulation CSS Events Effects Ajax Utilities".split(" "); $('div#osx-modal-data').html(result).find("#txtEmail").css('color', '#c00'); if ($('div#osx-modal-data').find("#txtEmail").length) { // implies *not* zero $('div#osx-modal-data').find("#txtEmail").autocomplete(data); alert('We found img elements on the page using "img"'); } else { alert('No txtEmail elements found'); } } }); self.container = d.container[0]; d.overlay.fadeIn('slow', function() { $("#osx-modal-content", self.container).show(); $('div#osx-modal-title').html("Send Email"); var title = $("#osx-modal-title", self.container); title.show(); d.container.slideDown('slow', function() { setTimeout(function() { var h = $("#osx-modal-data", self.container).height() + title.height() + 20; // padding d.container.animate({ height: h }, 200, function() { $("div.close", self.container).show(); $("#osx-modal-data", self.container).show(); }); }, 300); }); }) }, close: function(d) { var self = this; d.container.animate({ top: "-" + (d.container.height() + 20) }, 500, function() { self.close(); // or $.modal.close(); }); }, show: function(d) { // $('div#osx-modal-data').find("#txtEmail").css('color', '#ccc') } }; });

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• C++ DLL creation for C# project - No functions exported

  - by Yeti

  I am working on a project that requires some image processing. The front end of the program is C# (cause the guys thought it is a lot simpler to make the UI in it). However, as the image processing part needs a lot of CPU juice I am making this part in C++. The idea is to link it to the C# project and just call a function from a DLL to make the image processing part and allow to the C# environment to process the data afterwards. Now the only problem is that it seems I am not able to make the DLL. Simply put the compiler refuses to put any function into the DLL that I compile. Because the project requires some development time testing I have created two projects into a C++ solution. One is for the Dll and another console application. The console project holds all the files and I just include the corresponding header into my DLL project file. I thought the compiler should take out the functions that I marked as to be exported and make the DLL from them. Nevertheless this does not happens. Here it is how I defined the function in the header: extern "C" __declspec(dllexport) void _stdcall RobotData(BYTE* buf, int** pToNewBackgroundImage, int* pToBackgroundImage, bool InitFlag, ObjectInformation* robot1, ObjectInformation* robot2, ObjectInformation* robot3, ObjectInformation* robot4, ObjectInformation* puck); extern "C" __declspec(dllexport) CvPoint _stdcall RefPointFinder(IplImage* imgInput, CvRect &imgROI, CvScalar &refHSVColorLow, CvScalar &refHSVColorHi ); Followed by the implementation in the cpp file: extern "C" __declspec(dllexport) CvPoint _stdcall RefPointFinder(IplImage* imgInput, CvRect &imgROI,&refHSVColorLow, CvScalar &refHSVColorHi ) { \\... return cvPoint((int)( M10/M00) + imgROI.x, (int)( M01/M00 ) + imgROI.y) ;} extern "C" __declspec(dllexport) void _stdcall RobotData(BYTE* buf, int** pToNewBackgroundImage, int* pToBackgroundImage, bool InitFlag, ObjectInformation* robot1, ObjectInformation* robot2, ObjectInformation* robot3, ObjectInformation* robot4, ObjectInformation* puck) { \\ ...}; And my main file for the DLL project looks like: #ifdef _MANAGED #pragma managed(push, off) #endif /// <summary> Include files. </summary> #include "..\ImageProcessingDebug\ImageProcessingTest.h" #include "..\ImageProcessingDebug\ImageProcessing.h" BOOL APIENTRY DllMain( HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) { return TRUE; } #ifdef _MANAGED #pragma managed(pop) #endif Needless to say it does not work. A quick look with DLL export viewer 1.36 reveals that no function is inside the library. I don't get it. What I am doing wrong ? As side not I am using the C++ objects (and here it is the C++ DLL part) such as the vector. However, only for internal usage. These will not appear in the headers of either function as you can observe from the previous code snippets. Any ideas? Thx, Bernat

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• How can I embed a conditional comment for IE with innerHTML?

  - by Samuel Charpentier

  Ok so I want to conditionally add this line of code; <!--[if ! IE]> <embed src="logo.svg" type="image/svg+xml" /> <![endif]--> Using: document.getElementById("logo") .innerHTML='...'; In a if()/else() statement and it don't write it! If i get rid of the selective comment ( <!--[if ! IE]><![endif]-->) and only put the SVG ( <embed src="logo.svg" type="image/svg+xml" /> ) it work! what should I do? I found a way around but i think in the Android browser the thing will pop up twice. here's what I've done ( and its Validated stuff!); <!DOCTYPE html> <html> <head> <META CHARSET="UTF-8"> <title>SVG Test</title> <script type="text/javascript"> //<![CDATA[ onload=function() { var ua = navigator.userAgent.toLowerCase(); var isAndroid = ua.indexOf("android") > -1; //&& ua.indexOf("mobile"); if(isAndroid) { document.getElementById("logo").innerHTML='<img src="fin_palais.png"/>'; } } //]]> </script> </head> <body> <div id="logo"> <!--[if lt IE 9]> <img src="fin_palais.png"/> <![endif]--> <!--[if gte IE 9]><!--> <embed src="fin_palais.svg" type="image/svg+xml" /> <!--<![endif]--> </div> </body>

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• C++ SQLDriverConnect API

  - by harshalkreddy

  Hi, I am using visual studio 2008 and sql server 2008 for developing application(SQL server is in my system). I need to fetch some fields from the database. I am using the SQLDriverConnect API to connect to the database. If I use the "SQL_DRIVER_PROMPT" I will get pop window to select the data source. I don't want this window to appear. As per my understanding this window will appear if we provide insufficient information in the connection string. I think I have provided all the information. I am trying to connect with windows authentication. I tried different options but still no luck. Please help me in solving this problem. Below is the code that I am using: //******************************************************************************** // SQLDriverConnect_ref.cpp // compile with: odbc32.lib user32.lib #include <windows.h> #include <sqlext.h> int main() { SQLHENV henv; SQLHDBC hdbc; SQLHSTMT hstmt; SQLRETURN retcode; SQLWCHAR OutConnStr[255]; SQLSMALLINT OutConnStrLen; SQLCHAR ConnStrIn[255] = "DRIVER={SQL Server};SERVER=(local);DSN=MyDSN;DATABASE=MyDatabase;Trusted_Connection=yes;"; //SQLWCHAR *ConntStr =(SQLWCHAR *) "DRIVER={SQL Server};DSN=MyDSN;"; HWND desktopHandle = GetDesktopWindow(); // desktop's window handle // Allocate environment handle retcode = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &henv); // Set the ODBC version environment attribute if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) { retcode = SQLSetEnvAttr(henv, SQL_ATTR_ODBC_VERSION, (SQLPOINTER*)SQL_OV_ODBC3, 0); // Allocate connection handle if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) { retcode = SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc); // Set login timeout to 5 seconds if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) { SQLSetConnectAttr(hdbc, SQL_LOGIN_TIMEOUT, (SQLPOINTER)5, 0); retcode = SQLDriverConnect( // SQL_NULL_HDBC hdbc, desktopHandle, (SQLWCHAR *)ConnStrIn, SQL_NTS, OutConnStr, 255, &OutConnStrLen, SQL_DRIVER_NOPROMPT); // Allocate statement handle if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) { retcode = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt); // Process data if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) { SQLFreeHandle(SQL_HANDLE_STMT, hstmt); } SQLDisconnect(hdbc); } SQLFreeHandle(SQL_HANDLE_DBC, hdbc); } } SQLFreeHandle(SQL_HANDLE_ENV, henv); } } //******************************************************************************** Thanks in advance, Harsha

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• Javascript problem with a global external link confirmation alert

  - by OverDrive

  Below is the code from a plugin for Joomla. It works on it's own and it's purpose is to detect external links on the page and force them into new browser windows using _blank. I've tried for about an hour (I don't know javascript well) but I can't seem to figure out how to get an onclick function working. End result, I want to add to this script the ability of a confirmation dialog, shown in the 2nd code section. An external link, when clicked, will pop up the confirmation dialog, and if it says yes, they will be able to get to the external URL, opening in a new window. Otherwise, it cancels, and does nothing. When I create a link with onclick="return ExitNotice(this.href);" within it it works perfectly, but since my website has multiple people submitting input, I'd like the confirmation box global. this.blankwin = function(){ var hostname = window.location.hostname; hostname = hostname.replace("www.","").toLowerCase(); var a = document.getElementsByTagName("a"); this.check = function(obj){ var href = obj.href.toLowerCase(); return (href.indexOf("http://")!=-1 && href.indexOf(hostname)==-1) ? true : false; }; this.set = function(obj){ obj.target = "_blank"; obj.className = "blank"; }; for (var i=0;i<a.length;i++){ if(check(a[i])) set(a[i]); }; }; this.addEvent = function(obj,type,fn){ if(obj.attachEvent){ obj['e'+type+fn] = fn; obj[type+fn] = function(){obj['e'+type+fn](window.event );} obj.attachEvent('on'+type, obj[type+fn]); } else { obj.addEventListener(type,fn,false); }; }; addEvent(window,"load",blankwin); Second Part /* ---------- OnClick External Link Notice ---------- */ function ExitNotice(link,site,ltext) { if(confirm("-----------------------------------------------------------------------\n\n" + "You're leaving the HelpingTeens.org website. HelpingTeens.org\ndoes not " + "control this site and its privacy policies may differ\nfrom our own. " + "Thank you for using our site.\n\nYou will now access the following link:\n" + "\n" + link + "\n\nPress \'OK\' to proceed, or press \'Cancel\' to remain here." + "\n\n-----------------------------------------------------------------------")) { return true; } history.go(0); return false; } A) Can anyone help me fix this problem? or B) Is there a better solution?

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• Facebook Connect from Localhost, doing some weird stuff

  - by Brett

  So maybe the documentation is out of date, or I am just off here. But I have done a slew of FB iframe apps (connect), but I am starting my first FB Connect site. Running it from localhost, and the Connect URL is http:// my_external_IP_address. When I click on the FB login button on my site, it pops up, says waiting for facebook, and it returns my site in that box, with the URL up top with the http:// mysite/?session={session key, user_id, etc.} The user_id is infact my FB id. And so it thinks I am logged in. If I close the popup, I'm not logged in. I'm not sure why the pop up isn't doing the normal fb connect dialog. I'm following these steps. (I added spaces to the http:// as to not be detected as 'spam') html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml" right after <body> <script src="http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php" type="text/javascript"> At the end, before the body close tag: script type="text/javascript"> FB.init("fbkey", "http://127.0.0.1/xd_receiver.htm"); I have tried using xd_receiver.htm, /xd_receiver.htm (and other combos), and that brings up a blank page. using the http://127.0.0.1 at least does something. In my config file, which is called before all of those, it checks for a PHP session key to see if they are logged in, if that doesn't exist it looks for a cookie, and if that doesn't exist it does this: require_once('includes/facebook.php'); $facebook = new Facebook($fbkey, $fbsec); $user_id = $facebook->get_loggedin_user(); if($user_id > 0){ $user = $ac->getUserFromFB($user_id); $_SESSION['user_id'] = $user['user_id']; } The user_id is always empty when I echo it out to the screen to test. The session event never occurs as well. So I don't know what it is doing in the popup, but I think Facebook thinks it is logging me in. Not sure. Pretty stumped on this one. Any help would be appreciated. Thanks!

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• What is the proper way to change the UINavigationController transition effect

  - by Felipe Sabino

  I have seen lots of people asking on how to push/pop UINavigationControllers using other animations besides the default one, like flip or curl. The problem is that either the question/answer was relative old, which means the have some things like [UIView beginAnimations:] (example here) or they use two very different approaches. The first is to use UIView's transitionFromView:toView:duration:options:completion: selector before pushing the controller (with the animation flag set to NO), like the following: UIViewController *ctrl = [[UIViewController alloc] init]; [UIView transitionFromView:self.view toView:ctrl.view duration:1 options:UIViewAnimationOptionTransitionFlipFromTop completion:nil]; [self.navigationController pushViewController:ctrl animated:NO]; Another one is to use CoreAnimation explicitly with a CATransaction like the following: // remember you will have to have the QuartzCore framework added to your project for this approach and also add <QuartzCore/QuartzCore.h> to the class this code is used CATransition* transition = [CATransition animation]; transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn]; transition.duration = 1.0f; transition.type = @"flip"; transition.subtype = @"fromTop"; [self.navigationController.view.layer removeAllAnimations]; [self.navigationController.view.layer addAnimation:transition forKey:kCATransition]; UIViewController *ctrl = [[UIViewController alloc] init]; [self.navigationController pushViewController:ctrl animated:NO]; There are pros and cons for both approaches. The first approach gives me a much cleaner code but restricts me from using animations like "suckEffect", "cube" and others. The second approach feels wrong just by looking at it. It starts by using undocumented transitions types (i.e. not present in the Common transition types documentation from CATransition Class Reference) which might get your app rejected from App Store (I mean might as I could not found any reference of apps being rejected because it was using this transactions, which I would also appreciate any clarification on this matter), but it gives you much more flexibility on your animations, as I can use other animation types such as "cameraIris", "rippleEffect" and so on. Regarding all that, do I really need to appeal for QuartzCore and CoreAnimation whenever I need a fancier UINavigationController transition? Is there any other way to accomplish the same effect using only UIKit? If not, will the use of string values like "flip" and "cube" instead of the pre-defined constants (kCATransitionFade, kCATransitionMoveIn, etc...) be an issue regarding my app approval in the App Store? Also, are there other pros and cons regarding both approaches that could help me deciding whether to choose each one of them?

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• DFS Backtracking with java

  - by Cláudio Ribeiro

  I'm having problems with DFS backtracking in an adjacency matrix. Here's my code: (i added the test to the main in case someone wants to test it) public class Graph { private int numVertex; private int numEdges; private boolean[][] adj; public Graph(int numVertex, int numEdges) { this.numVertex = numVertex; this.numEdges = numEdges; this.adj = new boolean[numVertex][numVertex]; } public void addEdge(int start, int end){ adj[start-1][end-1] = true; adj[end-1][start-1] = true; } List<Integer> visited = new ArrayList<Integer>(); public Integer DFS(Graph G, int startVertex){ int i=0; if(pilha.isEmpty()) pilha.push(startVertex); for(i=1; i<G.numVertex; i++){ pilha.push(i); if(G.adj[i-1][startVertex-1] != false){ G.adj[i-1][startVertex-1] = false; G.adj[startVertex-1][i-1] = false; DFS(G,i); break; }else{ visited.add(pilha.pop()); } System.out.println("Stack: " + pilha); } return -1; } Stack<Integer> pilha = new Stack(); public static void main(String[] args) { Graph g = new Graph(6, 9); g.addEdge(1, 2); g.addEdge(1, 5); g.addEdge(2, 4); g.addEdge(2, 5); g.addEdge(2, 6); g.addEdge(3, 4); g.addEdge(3, 5); g.addEdge(4, 5); g.addEdge(6, 4); g.DFS(g, 1); } } I'm trying to solve the euler path problem. the program solves basic graphs but when it needs to backtrack, it just does not do it. I think the problem might be in the stack manipulations or in the recursive dfs call. I've tried a lot of things, but still can't seem to figure out why it does not backtrack. Can somebody help me ?

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• Getting the value from asp:LinkButton's CommandArgument attribute using jquery/javascript

  - by LobalOrning

  I need to get the value of the CommandArgument attribute of a LinkButton, in an asp:Repeater. I have an asp:Repeater with 2 LinkButtons whose CommandArgument I set to a value: <ItemTemplate> <tr class="odd"> <td><%#DataBinder.Eval(Container.DataItem, "batch_id")%></td> <td><%#DataBinder.Eval(Container.DataItem, "productId")%></td> <td><%#DataBinder.Eval(Container.DataItem, "serial_number")%></td> <td><%#DataBinder.Eval(Container.DataItem, "activation_card_number")%></td> <td><%#DataBinder.Eval(Container.DataItem, "transaction_amount","{0:C}")%></td> <td><%#DataBinder.Eval(Container.DataItem, "response_dt", "{0:M/d/yyyy HH:mm:ss}")%></td> <td style="text-align:center;"><%#DataBinder.Eval(Container.DataItem, "resp_process_msg")%></td> <td style="text-align:center;"><%#DataBinder.Eval(Container.DataItem, "resp_response_code")%></td> <td style="text-align:center;"><asp:LinkButton ID="lnkBtnRestageAdd" CommandName="Add" CommandArgument='<%#Eval("activation_card_number")%>' runat="server" Text="stage" class="add" OnClientClick="return false;" /></td> <td style="text-align:center;"><asp:LinkButton ID="lnkBtnRestageMinus" CommandName="Subtract" CommandArgument='<%#Eval("activation_card_number")%>' runat="server" Text="stage" class="minus" OnClientClick="return false;" /></td> </tr> </ItemTemplate> I have suppressed the PostBack with OnClientClick="return false;" so that I can pop a jQuery dialog modal when the link buttons get clicked: if (btnAdd != null) { $(".add").click(function() { $("#<%=divDialogAdd.ClientID %>").removeAttr("style"); $("#<%=divDialogAdd.ClientID %>").dialog("open"); }); } In the modal I have 2 other asp:LinkButtons, and when the 'Yes' button is clicked I do the postback like so: yesBtn.click(function() { setTimeout('__doPostBack(\'btnAdd\',\'\')', 0); //need to add a param }); What I need to do, is somehow grab the CommandArgument value from the LinkButton in the Repeater, so that I can pass that as a parametere or assign it to a hidden field. I have tried jQuery's attr(), but that only works when the attribute was set using that function as well. How can I get this value, or what other way can I go about this?

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• Android - dialer icon gets placed in recently used apps after finish()

  - by Donal Rafferty

  In my application I detect the out going call when a call is dialled from the dialer or contacts. This works fine and I then pop up a dialog saying I have detected the call and then the user presses a button to close the dialog which calls finish() on that activity. It all works fine except that when I then hold the home key to bring up the recently used apps the dialer icon is there. And when it is clicked the dialog is brought back into focus in the foreground when the dialog activity should be dead and gone and not be able to be brought back to the foreground. Here is a picture of what I mean. So two questions arise, why would the dialer icon be getting placed there and why would it be recalling my activity to the foreground? Here is the code for that Activity which has a dialog theme: public class CallDialogActivity extends Activity{ boolean isRecording; AudioManager audio_service; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.dialog); audio_service = (AudioManager) getSystemService(Context.AUDIO_SERVICE); getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND); Bundle b = this.getIntent().getExtras(); String number = b.getString("com.networks.NUMBER"); String name = b.getString("com.networks.NAME"); TextView tv = (TextView) findViewById(R.id.voip) ; tv.setText(name); Intent service = new Intent(CallAudio.CICERO_CALL_SERVICE); startService(service); final Button stop_Call_Button = (Button) findViewById(R.id.widget35); this.setVolumeControlStream(AudioManager.STREAM_VOICE_CALL); stop_Call_Button.setOnClickListener(new View.OnClickListener(){ public void onClick(View v){ Intent service = new Intent(CallAudio._CALL_SERVICE); //this is for Android 1.5 (sets speaker going for a few seconds before shutting down) stopService(service); Intent setIntent = new Intent(Intent.ACTION_MAIN); setIntent.addCategory(Intent.CATEGORY_HOME); setIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(setIntent); finish(); isRecording = false; } }); final Button speaker_Button = (Button) findViewById(R.id.widget36); speaker_Button.setOnClickListener(new View.OnClickListener(){ public void onClick(View v){ if(true){ audio_service.setSpeakerphoneOn(false); } else{ audio_service.setSpeakerphoneOn(true); } } }); } @Override protected void onResume() { super.onResume(); } @Override protected void onPause() { super.onPause(); } public void onCofigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); } } It calls a service that uses AudioRecord to record from the Mic and AudioTrack to play it out the earpiece, nothing in the service to do with the dialler. Has anyone any idea why this might be happening?

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• How to close a jquery dialog box when a submit button is clicked(Submit button is residing inside the dialog box)

  - by user1268313

  i have struts2 form inside a jquery dialog box, when i submit my form inside that dialog box my Struts2 action is performing but that pop up jquery dialog box is not closing. How can i close that dialog box when![enter image description here][1] i submit my form? <table> <tr> <td> <td align="center" > <sj:head jqueryui="true" jquerytheme="cupertino" /> <sj:dialog id="mybuttondialog" autoOpen="false" showEffect="fadeIn" hideEffect="fadeOut" modal="true" title="Rename" > <s:form action="EditDayActionUserTemplate" id="formId323"> <table style="height:48px;width: 100%;" cellpadding="0" cellspacing="0" border="0"> <tr> <td colspan="2" align="center"> <input type="hidden" name="dayId" value="<%=daycont%>"/> <input type="hidden" name="workoutId" value="<%=trid%>"/> </td> </tr> <tr> <td width="50%" align="right"><font size="6px">Date</font></td> <td width="50%"> <sj:datepicker id="datghfe4" name="date" value="%{#parameters['date']}" label="Select Date" appendText=" (dd.MM.yy)" displayFormat="dd.M.yy"/></td> </tr> <tr> <td>&nbsp;</td> <td align="right"><sj:submit formIds="formId323" id="sdfdss3" button="true" value="Rename" targets="rightmiddiv"></sj:submit></td> </tr> </table> </s:form> </sj:dialog> <sj:submit openDialog="mybuttondialog" value="Rename" button="true" /> </td> </tr> </table>

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• Is there a way for a user to disable an AlertDialog completely?

  - by NewGuyChris

  In the app I'm making, I have an "if" statement where if two strings are saved to a certain string, an AlertDialog pops up. These strings will stay the same for some users, thus having this AlertDialog constantly pop up whenever they launch the activity where the ALertDialog is set to appear. Code (I have no setNegativeButton as of yet): private void SetWarning() { AlertDialog.Builder alert = new AlertDialog.Builder(this); alert.setTitle("Warning!"); alert.setMessage(R.string.Warning); alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { //No action needed; just close the AlertDialog. } }); alert.show(); } Here is a segment of my code that makes this AlertDialog appear: SharedPreferences sharedPreferences = getSharedPreferences("MY_PREF", MODE_PRIVATE); String s = sharedPreferences2.getString("MEM1", ""); String s2 = sharedPreferences2.getString("MEM2", ""); if(s.equals("String1") && s2.equals("String2")) SetWarning(); Is there a way to make an "alert.setNegativeButton" method where if the user clicks it, the AlertDialog will NEVER appear again? I'm thinking of maybe somehow implementing another SavedPreferences somehow so it saves the users selection and will then prevent the AlertDialog from ever appearing again. So far, to no luck. I've searched to find nothing, other than people asking how to disable buttons in an AlertDialog. Thank you! New updated code: alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { //set sharedpreferences boolean called DONTSHOWAGAIN to true; SharedPreferences sharedPreferences2 = getSharedPreferences("MY_PREF", MODE_PRIVATE); Boolean dontShowAgain = sharedPreferences2.getBoolean("dontShowAgain ", false); SharedPreferences.Editor ed = sharedPreferences2.edit(); ed.putBoolean("dontShowAgain", true); ed.commit(); } }); alert.show(); } private void StringWarning() { SharedPreferences sharedPreferences2 = getSharedPreferences("MY_PREF", MODE_PRIVATE); String s = sharedPreferences2.getString("MEM1", ""); String s2 = sharedPreferences2.getString("MEM2", ""); if(s.equals("String1") && s2.equals("String2")){ if(!dontShowAgain){ SetWarningExamConflict(); } }

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