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  • Wrapping \NewEnviron into \newenvironment fails

    - by o_O Tync
    Hello! I am trying to wrap an environment created with \NewEnviron (package 'environ') into an old good \newenvironment: \NewEnviron{test}{aaa(\BODY)bbb} \newenvironment{wrapper}{\begin{test}}{\end{test}} \begin{wrapper} debug me \end{wrapper} However, this gives me a strange error: LaTeX Error: \begin{test} on input line 15 ended by \end{wrapper}. LaTeX Error: \begin{wrapper} on input line 15 ended by \end{document}. If I replace \NewEnviron{test}{aaa(\BODY)bbb} with \newenvironment{test}{aaa(}{)bbb} — everything works as expected! It seems like \NewEnviron fails to find its end for some reason. I'm trying to do some magic with 'floatfig' wrapped into a \colorbox so I need a way to convert \colorbox to an environment and wrap it into another one. I can define a new command but it's not a very good idea. Thanks in advance!

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  • Detecting that the stack is full in C/C++

    - by Martin Kristiansen
    When writing C++ code I've learned that using the stack to store memory is a good idea. But recently I ran into a problem: I had an experiment that had code that looked like this: void fun(unsigned int N) { float data_1[N*N]; float data_2[N*N]; /* Do magic */ } The code exploted with a seqmentation fault at random, and I had no idea why. It turned out that problem was that I was trying to store things that were to big on my stack, is there a way of detecting this? Or at least detecting that it has gone wrong?

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  • Joomla - Force File Download / CSV Export

    - by lautaro.dragan
    I'm in need of help... this is my first time asking a question in SO, so please be kind :) I'm trying to force-download a file from php, so when the user hits a certain button, he gets a file download. The file is a csv (email, username) of all registered users. I decided to add this button to the admin users screen, as you can see in this screenshot. So I added the following code to the addToolbar function in administrator/components/com_users/views/users/view.html.php: JToolBarHelper::custom('users.export', 'export.png', 'export_f2.png', 'Exportar', false); This button is mapped to the following function in the com_users\controller\users.php controller: public function exportAllUsers() { ob_end_clean(); $app = JFactory::getApplication(); header("Content-type: text/csv"); header("Content-Disposition: attachment; filename=ideary_users.csv"); header("Pragma: no-cache"); header("Expires: 0"); echo "email,name\n"; $model = $this->getModel("Users"); $users = $model->getAllUsers(); foreach ($users as $user) { echo $user->email . ", " . ucwords(trim($user->name)) . "\r\n"; } $app->close(); } Now, this is actually working perfectly fine. The issue here is that after I download a file, if I hit any button in the admin that causes a POST, instead of it performing the action it should, it just downloads the file over again! For example: I hit the "Export" button "users.csv" downloads Then, I hit the "search" button "users.csv" downloads... what the hell? I'm guessing that when I hit the export button, a JS gets called and sets a form's action attribute to an URL... and expects a response or something, and then other button's are prevented from re-setting the form's action attribute. I can't think of any real solution for this, but I'd rather avoid hacks if possible. So, what would be the standard, elegant solution that joomla offers in this case?

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  • Stop scrolling to top in UIWebView - iPhone

    - by sagar
    I have placed following javascript in my html file. <script TYPE="text/javascript"> function srk(){ document.ontouchmove = function(e){ e.preventDefault(); } } </script> I am scrolling my webview by following code with some animation. [myWebView stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat: @"window.scrollTo(0,%i);",414*self.initialScrollPosition]]; Everything going right, but on problem that I am facing is as follows. Whenever User/I tap on the status bar of iPhone, WebView Bydefault scrolls to top. This should not be done. Is it possible to prevent inbuilt functionality ? I know one of the option is as follows. ((UIScrollView *)[[myWebView valueForKey:@"_internal"] valueForKey:@"scroller"]).scrollsToTop = NO; But is it valid to do ?

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  • It's possible to don't pass in GET some fields of a form?

    - by avastreg
    I have a form with some input texts passed in GET, and i don't want to have in GET all the fields; i want to avoid empty fields. So, a concrete example for: <form method="GET" action="an_url"> <input type="text" name="field1"/> <input type="text" name="field2"/> <input type="text" name="field3"/> <input type="submit" value="submit"/> </form> I supposed that fields disabled by html attribute "disabled" shouldn't be passed to GET. So i have done a js (based on jquery) to disable empty fields on submit, something like this: $("form").submit(function() { $(this).find("input[type=text]").each( function () { if (!$.trim($(this).val())) { $(this).attr("disabled", "true"); } }); }); However, this doesn't work. Any ideas?

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  • jQuery and CodeIgniter AJAX with JSON not working

    - by thedp
    Hello, I trying to make my first AJAX with JSON call using jQuery and CodeIgniter. But for some weird reason it's not working. The jQuery code: var item = "COOL!"; $.post("http://192.168.8.138/index.php/main/test", { "item" : item }, function(data){ alert(data.result); }, "json"); The CodeIgniter code: <?php class main extends Controller { function test() { $item = trim($this->input->post('item')); $array = array('result' => $item); echo json_encode($array); } } ?> I tried to access the http://192.168.8.138/index.php/main/test page manually and it seems to be working, I got: {"result":""} I also tried to use Firebug to see XMLHttpRequest but saw nothing. I have no idea what am I doing wrong... Need help really badly. Thank you.

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  • Jquery mouseover event issues

    - by Shaun
    Hi I am currently working on a project where I am using jQuery to animate a block of text on mouse over. The event listener is on the containing div (as shown by the code below) and works really well until the mouse is over the title (.views-field-title) which is absolutely above the containing div. The animation begins to jump almost as though it is starting over? What am I doing wrong? $('#interior_design .views-row').mouseover(function(){ $('.views-field-title', this).stop(true, true).animate( { height: '+=10px' }, { duration: 'fast'}); }); $('#interior_design .views-row').mouseout(function(){ $('.views-field-title', this).stop(true, true).animate( { height: '-=10px' }, { duration: 'fast'}); }); Link to dev server: http://viva.bangtest.co.uk/interior-design Note: this site is still in development as such the jQuery is only on the above linked page currently. I'm open to all suggestions.

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  • getSymbols and using lapply, Cl, and merge to extract close prices

    - by algotr8der
    I've been messing around with this for some time. I recently started using the quantmod package to perform analytics on stock prices. I have a ticker vector that looks like the following: > tickers [1] "SPY" "DIA" "IWM" "SMH" "OIH" "XLY" "XLP" "XLE" "XLI" "XLB" "XLK" "XLU" "XLV" [14] "QQQ" > str(tickers) chr [1:14] "SPY" "DIA" "IWM" "SMH" "OIH" "XLY" "XLP" "XLE" ... I wrote a function called myX to use in a lapply call to save prices for every stock in the vector tickers. It has the following code: myX <- function(tickers, start, end) { require(quantmod) getSymbols(tickers, from=start, to=end) } I call lapply by itself library(quantmod) lapply(tickers,myX,start="2001-03-01", end="2011-03-11") > lapply(tickers,myX,start="2001-03-01", end="2011-03-11") [[1]] [1] "SPY" [[2]] [1] "DIA" [[3]] [1] "IWM" [[4]] [1] "SMH" [[5]] [1] "OIH" [[6]] [1] "XLY" [[7]] [1] "XLP" [[8]] [1] "XLE" [[9]] [1] "XLI" [[10]] [1] "XLB" [[11]] [1] "XLK" [[12]] [1] "XLU" [[13]] [1] "XLV" [[14]] [1] "QQQ" That works fine. Now I want to merge the Close prices for every stock into an object that looks like # BCSI.Close WBSN.Close NTAP.Close FFIV.Close SU.Close # 2011-01-03 30.50 20.36 57.41 134.33 38.82 # 2011-01-04 30.24 19.82 57.38 132.07 38.03 # 2011-01-05 31.36 19.90 57.87 137.29 38.40 # 2011-01-06 32.04 19.79 57.49 138.07 37.23 # 2011-01-07 31.95 19.77 57.20 138.35 37.30 # 2011-01-10 31.55 19.76 58.22 142.69 37.04 Someone recommended I try something like the following: ClosePrices <- do.call(merge, lapply(tickers, function(x) Cl(get(x)))) However I tried various combinations of this without any success. First I tried just calling lapply with Cl(x) >lapply(tickers,myX,start="2001-03-01", end="2011-03-11") Cl(myX))) > lapply(tickers,myX,start="2001-03-01", end="2011-03-11") Cl(x))) Error: unexpected symbol in "lapply(tickers,myX,start="2001-03-01", end="2011-03-11") Cl" > > lapply(tickers,myX(x),start="2001-03-01", end="2011-03-11") Cl(x))) Error: unexpected symbol in "lapply(tickers,myX(x),start="2001-03-01", end="2011-03-11") Cl" > > lapply(tickers,myX(start="2001-03-01", end="2011-03-11") Cl(x) Error: unexpected symbol in "lapply(tickers,myX(start="2001-03-01", end="2011-03-11") Cl" > lapply(tickers,myX(start="2001-03-01", end="2011-03-11") Cl(x)) Error: unexpected symbol in "lapply(tickers,myX(start="2001-03-01", end="2011-03-11") Cl" > Any guidance would be kindly appreciated.

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  • JQuery $.post not working properly

    - by drupop
    Can't seem to find a fix for this issue I have the following code on the onclick event of an a html tag: AddVacationToCart( { ServiceSupplier:'Kiki', ProductId:'0;11968;0;0;187;1', Name:'Excelsior', NumberOfStars:'*****', TotalPrice:'1620.00', PriceLevelName:'Standard', Currency:'EUR', Status:'', StartDate:'2010-06-17', EndDate:'2010-06-24', NumberOfNights:'7', Rooms:[ { NumberOfAdults:'2', NumberOfChildren:'0', ChildrenAges:[] } ] },'0;11968;0;0;187;1');return false; I also have this code: function AddVacationToCart(vacation, id) { $.post("/ShoppingCart.mvc/AddVacation", vacation, function(data) { var div = $("div[id*=cartv" + id + "]"); var removeFromCartHtml = "Adaugat"; $(div).html(removeFromCartHtml); }, "json"); } This is the code in my ShoppingCartController AddVacation Action: [AcceptVerbs(HttpVerbs.Post)] public ActionResult AddVacation(Vacation test) { ... } The post works as in the (Vacation) test object gets filled with the corresponding properties like ServiceSupplier, ProductId, Name etc. Except the properties of my Rooms field do not get their corresponding values. Any ideeas?

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  • Blinking an item. (Jquery FadeIn FadeOut ?)

    - by 0plus1
    I have two divs that I want to make blink at the same time until the user hovers the mouse on one of them. var shouldiblink = '1'; function mrBlinko(divid){ while (shouldiblink =='1') { $("#"+divid).fadeIn(100).fadeOut(300); } $(document).ready(function(){ mrBlinko("mydiv1"); mrBlinko("mydiv2"); } The I'll have an hover event that sets shouldiblink to '0'. Problem is that the loops starts as soon as the page is ready and the browser crashes. I'm stuck with this solution and I can't think of an alternative right now. Can you help me? Thank you very much.

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  • xmlhttp.responseText and xmlhttp.readyState works fine with localhost but if i use IP address it is

    - by hemant
    Hi All, xmlhttp.responseText and xmlhttp.readyState works fine with localhost but if i use IP address it is not returning values same as localhost. function getFilenames() { xmlhttp=GetXmlHttpObject(); if (xmlhttp==null) { alert ("Browser does not support HTTP Request"); return; } var url="GetFileNames.php"; xmlhttp.onreadystatechange=stateChanged; xmlhttp.open("GET",url,true); xmlhttp.send(null); } function stateChanged() { if (xmlhttp.readyState == 4) { StringFileName = xmlhttp.responseText; } else { StringFileName = null; } } Regards Hemant

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  • FxCop giving a warning on private constructor CA1823 and CA1053

    - by Luis Sánchez
    I have a class that looks like the following: Public Class Utilities Public Shared Function blah(userCode As String) As String 'doing some stuff End Function End Class I'm running FxCop 10 on it and it says: "Because type 'Utilities' contains only 'static' ( 'Shared' in Visual Basic) members, add a default private constructor to prevent the compiler from adding a default public constructor." Ok, you're right Mr. FxCop, I'll add a private constructor: Private Utilities() Now I'm having: "It appears that field 'Utilities.Utilities' is never used or is only ever assigned to. Use this field or remove it." Any ideas of what should I do to get rid of both warnings?

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  • How to check for empty values on two fields then prompt user of error using javascript

    - by Matthew
    Hello guys, I hope I can explain this right I have two input fields that require a price to be entered into them in order for donation to go through and submit. The problem that I am having is that I would like the validation process check to see if one of the two fields has a value if so then proceed to submit. If both fields are empty then alert. This is what I have in place now: function validate_required(field,alerttxt) { with (field) { if (value==null||value=="") {alert(alerttxt);return false;} else {return true} } } function validate_form(thisform) { with (thisform) { if (validate_required(input1,"Need a donation amount to continue")==false) {input1.focus();return false;} else if (validate_required(input2,"Need a donation amount to continue")==false) {input2.focus();return false;} } } I would like to ultimately like to get this over to Jquery as well Thanks guys any help would do Matt

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  • jQuery Rollovers Not Preloading

    - by zuk1
    $('.ro').hover( function(){ t = $(this); t.attr('src',t.attr('src').replace(/([^.]*)\.(.*)/, "$1_o.$2")); }, function(){ t = $(this); t.attr('src',t.attr('src').replace('_o','')); } ); I use this code so that (for examle) test.gif with the class 'ro' would change to test_o.gif on rollover, the problem is when the images aren't in the cache there is lag on rollover and rolloff. Basically if I clear my cache and visit the test page, everytime I rollover and rolloff the image it is loading the file each time, so you could sit there for hours and it would still be loading the rollover images each time. However, when I refresh the page and the images are now in the cache it works instantly, which is what I need to achieve. I've tried using this http://flesler.blogspot.com/2008/01/jquerypreload.html plugin to preload the images with this $.preload('.ro'); code, but it seems to have no effect. Any ideas?

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  • Php algorithm - How to achieve that without eval

    - by Marcelo
    I have a class that keeps data stores/access data by using words.separated.by.dots keys and it behaves like the following: $object = new MyArray() $object->setParam('user.name','marcelo'); $object->setParam('user.email','[email protected]'); $object->getParams(); /* array( 'user' => array( 'name' => 'marcelo', 'email' => '[email protected]' ) ); */ It is working, but the method unsetParam() was horribly implemented. That happened because i didn't know how to achieve that without eval() function. Although it is working, I found that it was a really challenging algorithm and that you might find fun trying to achieve that without eval(). class MyArray { /** * @param string $key * @return Mura_Session_Abstract */ public function unsetParam($key) { $params = $this->getParams(); $tmp = $params; $keys = explode('.', $key); foreach ($keys as $key) { if (!isset($tmp[$key])) { return $this; } $tmp = $tmp[$key]; } // bad code! $eval = "unset(\$params['" . implode("']['", $keys) . "']);"; eval($eval); $this->setParams($params); return $this; } } The test method: public function testCanUnsetNestedParam() { $params = array( '1' => array( '1' => array( '1' => array( '1' => 'one', '2' => 'two', '3' => 'three', ), '2' => array( '1' => 'one', '2' => 'two', '3' => 'three', ), ) ), '2' => 'something' ); $session = $this->newSession(); $session->setParams($params); unset($params['1']['1']['1']); $session->unsetParam('1.1.1'); $this->assertEquals($params, $session->getParams()); $this->assertEquals($params['1']['1']['2'], $session->getParam('1.1.2')); }

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  • Not able to delete list which dynamically created with jquery.

    - by shin
    I have two html here. The first one is dynamically generated by php and second one is just html to test. I also have the following jquery. When I click a cross with class delete in the second ones(plain html), it works nicely. However when I click a cross in the first ones, it does not work. It redirect me to the home page with # at the end. I am hoping someone point out what I am doing wrong. Thank in advance. HTML First part (dyanmicall generated) <ul style="display: block;" id="message"> <li class="41"> <span class="user"><strong>shin</strong></span> <span class="msg"> delete this as well</span> <span class="date">2010-01-15 07:47:31</span> <a href="#" id="41" class="delete">x</a> <div class="clear"></div></li> <li class="40"> <span class="user"><strong>shin</strong></span> <span class="msg"> delete me as well</span> <span class="date">2010-01-14 16:01:44</span> <a href="#" id="40" class="delete">x</a> <div class="clear"></div></li> ... ...</ul> Second part which is plain html <ul id="another"> <li><a href="#">you can't delete me</a></li> <li><a href="#" class="delete">delete this</a></li> <li><a href="#" class="delete">delete this</a></li> </ul> Here is jquery $(".delete").click(function(event) { event.preventDefault(); loading.fadeIn(); var commentContainer = $(this).parent(); var id = $(this).attr("id"); // var string = 'id='+ id ; $.ajax({ type: "POST", url: "index.php/admin/messages/changestatus/"+id, // data: string, cache: false, success: function(){ commentContainer.slideUp('slow', function() {$(this).remove();}); loading.fadeOut(); } }); return false; }); I am using CodeIgniter by the way.

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  • Respect regular onsubmit handlers from jQuery.submit

    - by orip
    I want a jQuery form submit handler to respect any previous submit handlers, including ones added with onsubmit. I'm trying to detect the previous handler's return value but can't seem to do it: <form><input type="submit" /></form> <script type="text/javascript"> $('form')[0].onsubmit = function() { return false; }; // called first $('form').submit(function(e) { console.log(e.result); // undefined console.log(e.isDefaultPrevented()); // false console.log(e.isPropagationStopped()); // false console.log(e.isImmediatePropagationStopped()); // false }); </script> Is there a way to do this?

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  • Jquery simplemodal close existing modal and open a new one?

    - by matthewsteiner
    Alright, so all modals already have an image at the top right to close them. How can I make additionally another anchor to do the same thing? I thought I could use the "closeClass" option which default to "simplemodal-close" and just add that class to an anchor, but it didn't have the desired effect. Is that what I'm supposed to do? Also, all modals will have a "contact us" link which should close it's own modal and open the contact modal. How can I wait until it is closed to open the next one? Ideas? $('a#ask').click(function(){ $.modal.close(function(){ }); $('#modal-contact').modal(); });

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  • Background job with status in rails

    - by pepernik
    Hey. I would like to upload a file and then parse it. Because parsing can take up to 10min I installed delayed_job plugin and called parsing function through send_later function. I have to mention that this is an AJAX app. Imagine that you press an AJAX button that starts upload and after that the source is imported into the database. During the process I want to show the progress bar or message (importing...) and when it completes the task status changes to done. My question is: What is the best way to check for status of the process. What would you do? My idea is to have another controller actions "status" which look into the database and provide the right status.

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  • Displaying Google Calendar event data on FullCalendar

    - by aurealus
    I am using Google Calendar as a storage engine for a calendar system I am building, however, I am using a single Google user account with multiple calendars, i.e. each user on my system has their own calendar within the one user account. I'm able to create a calendar per user just fine, but I would like to have FullCalendar retrieve the events for display purposes, without manually getting the magic cookie url from Google Calendar settings. I would like to be able to retrieve it programmatically or 'proxy' the feed via an authenticated call to get event data that I'm doing in Django. $('#calendar').fullCalendar({ events: $.fullCalendar.gcalFeed( "http://www.google.com/calendar_url/" <-- or /my/event/feed/url ) });

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  • How to correctly pop a modeless dialog from console using MFC

    - by Vertilka
    I need to create a console application that has a main() function and pop a modeless dialog, so the console can still work in parallel to the modeless dialog (do other work, like communicating with the modeless dialog). Whatever i tried, i could only pop a modal dialog. (where the console is in hold till the modal dialog close itself). When switching to modeless dialog using Create() and ShowWindow() the dialog is displayed without its controls and it freeze / block (you can see the hourglass cursor). 1) i tried to pop the modeless dialog from the main() function 2) i tried to pop the modeless dialog from the InitInstance() of a CWinApp derived class In all cases the modeless dialog freeze / block. I believe this is a one line solution. TNX,Vertilka

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  • Using jQuery copy plugin from CSS Tricks

    - by ftntravis
    I'm trying to use this plugin that CSS Tricks suggests. http://css-tricks.com/snippets/jquery/duplicate-plugin/ Shouldn't the following allow me to click a button and create a copy? $.fn.duplicate = function(count, cloneEvents) { var tmp = []; for ( var i = 0; i < count; i++ ) { $.merge( tmp, this.clone( cloneEvents ).get() ); } return this.pushStack( tmp ); }; $('.copy').click(function() { $('#form li').duplicate(5).appendTo('#form'); }; It's not working when I click it :(

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  • Why isn't this javascript code working?

    - by DarkLightA
    http://jsfiddle.net/LU3pE/ I want the function to make the arguments into a single string and return it. What have I done incorrectly? function cooncc(divider, lastdiv){ var returner; for (var i = 0; i < (arguments.length - 2); i++) { returner += arguments[i+2] + divider; } returner -= divider; returner += lastdiv + arguments[arguments.length - 1]; return divider; } var output = cooncc(", ", ", and ", "Andy", "Becky", "Caitlin", "Dave", "Erica", "Fergus", "Gaby"); document.body.innerHTML = "<h1>" + output + ".</h1>";

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  • How does refer(r)er work technically?

    - by NoozNooz42
    I don't understand: how are webserver and trackers like Google Analytics able to track referrals? Is it part of HTTP? Is it some (un)specified behavior of the browsers? Apparently every time you click on a link on a web page, the original web page is passed along the request. What is the exact mechanism behind that? Is it specified by some spec? I've read a few docs and I've played with my own Tomcat server and my own Google Analytics account, but I don't understand how the "magic" happens. Bonus (totally related) question: if, on my own website (served by Tomcat), I put a link to another site, does the other site see my website as the "referrer" without me doing anything special in Tomcat?

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  • Access event.target in IE8 unobstrusive Javascript

    - by Mirko
    The following function gets the target element in a dropdown menu: function getTarget(evt){ var targetElement = null; //if it is a standard browser if (typeof evt.target != 'undefined'){ targetElement = evt.target; } //otherwise it is IE then adapt syntax else{ targetElement = evt.srcElement; } //return id of element when hovering over or if (targetElement.nodeName.toLowerCase() == 'li'){ return targetElement; } else if (targetElement.parentNode.nodeName.toLowerCase() == 'li'){ return targetElement.parentNode; } else{ return targetElement; } Needless to say, it works in Firefox, Chrome, Safari and Opera but it does not in IE8 (and I guess in previous versions as well). When I try to debug it with IE8 I get the error "Member not Found" on the line: targetElement = evt.srcElement; along with other subsequent errors, but I think this is the key line. Any help will be appreciated.

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