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  • jQuery internals: Organization of the jQuery Object

    - by sonofdelphi
    I was going through the source code of jQuery. I'm having trouble understanding the wrapping strategy for the jQuery object. (function( window, undefined ) { // Define a local copy of jQuery var jQuery = function( selector, context ) { // The jQuery object is actually just the init constructor 'enhanced' return new jQuery.fn.init( selector, context ); }, .... .... .... // Expose jQuery to the global object window.jQuery = window.$ = jQuery; })(window); Specifically, what I'm not able to understand stems from the first line. What is the outermost unnamed container function? Why is it required? Why is the container function anonymous? What is the need for the outermost '(' parantheses ?

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  • Order of calls to set functions when invoking a flex component

    - by Jason
    I have a component called a TableDataViewer that contains the following pieces of data and their associated set functions: [Bindable] private var _dataSetLoader:DataSetLoader; public function get dataSetLoader():DataSetLoader {return _dataSetLoader;} public function set dataSetLoader(dataSetLoader:DataSetLoader):void { trace("setting dSL"); _dataSetLoader = dataSetLoader; } [Bindable] private var _table:Table = null; public function set table(table:Table):void { trace("setting table"); _table = table; _dataSetLoader.load(_table.definition.id, "viewData", _table.definition.id); } This component is nested in another component as follows: <ve:TableDataViewer width="100%" height="100%" paddingTop="10" dataSetLoader="{_openTable.dataSetLoader}" table="{_openTable.table}"/> Looking at the trace in the logs, the call to set table is coming before the call to set dataSetLoader. Which is a real shame because set table() needs dataSetLoader to already be set in order to call its load() function. So my question is, is there a way to enforce an order on the calls to the set functions when declaring a component?

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  • jQuery resize not working at FireFox, Chrome and Safari

    - by naveen
    $("#dvMyDIV").bind("resize", function(){ alert("Resized"); }); or $("#dvMyDIV").resize(function(){ alert("Resized"); }); The questions Why is this not working at FireFox, Chrome and Safari? Can this be considered a jQuery bug since the resize is not handled for other browsers? Could the only workaround be calling a SetTimeout function checking the clientHeight and clientWidth? Any workarounds using jQuery?

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  • How to raise a validation event from a key press

    - by flavour404
    Hi, I want to raise the: private void txtbox_startdate_Validating(object sender, System.ComponentModel.CancelEventArgs e) {} Function from a key leave event. The leave event looks like: private void txtbox_startdate_Leave(object sender, EventArgs e) {} The trouble is of course if I try and call it in this manner: txtbox_startdate_Validating(sender, e) An error is raised because in this case 'e' is an EventArgs whereas the validation function wants a System.ComponentModel.CancelEventArgs and so, how do I convert EventArgs to a System.ComponentModel.CancelEventArgs or create one so that I can call my validation function? Thanks, R.

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  • problem with dropdown in jsp

    - by Deven
    hello friends i am having three drop downs and button in my web page naming 1st 2nd and 3rd in which the value of 2nd depends on 1st and value of 3rd depends on 2dn its done using ajax now when i click on the button it calls one function of ajax which takes value from database and then select value at 1st dropdown and then fire on change event using fireEvent() function which is used to set values in 2nd dropdown and then the function called at button now select value at 2nd dropdown and then fire on change event using fireEvent() function which is used to set values in 3rd dropdown The main problem is that when i click on button it set value in 1st dropdown but 2nd and 3rd dropdown shows blank values

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  • Temporary Onmouseover

    - by 2x2p1p
    Hi guys :) Css "over" selector applys a temporary style to an element, it isn't definitive: div:hover { background-color: red; } I can use the same thing with javascript but it is a bit complicate and impossible for several elements: var elem = document.getElementByTagName ("div")[0]; elem.onmouseover = function () { this.style.backgroundColor = "red"; } elem.onmouseout = function () { this.style.backgroundColor = "transparent"; } There is a better way ? Something like this: document.getElementByTagName ("div")[0].ontemporarymouseover = function () { // LoL this.style.backgroundColor = "red"; } Thanks

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  • Making all variables accessible to namespace

    - by Gökhan Sever
    Hello, Say I have a simple function: def myfunc(): a = 4.2 b = 5.5 ... many similar variables ... I use this function one time only and I am wondering what is the easiest way to make all the variables inside the function accessible to my main name-space. Do I have to declare global for each item? or any other suggested methods? Thanks.

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  • jQuery timer, ajax, and "nice time"

    - by Mil
    So for this is what I've got: $(document).ready(function () { $("#div p").load("/update/temp.php"); function addOne() { var number = parseInt($("#div p").html()); return number + 1; } setInterval(function () { $("#div p").text(addOne()); }, 1000); setInterval(function () { $("#geupdate p").load("/update/temp.php");} ,10000); }); So this grabs a a UNIX timestamp from temp.php and puts into into #div p, and then adds 1 to it every second, and then every 10 seconds it will check the original file to keep it up to speed. My problem is that I need to format this UNIX timestamp into a format such as "1 day 3 hours 56 minutes and 3 seconds ago", while also doing all the incrementation and ajax calls. I'm not very experienced with jquery/javascript, so I might be missing something basic.

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  • JavaScript: How to create a new instance of a class without using the new keyword?

    - by Alessandro Vernet
    I think the following code will make the question clear. // My class var Class = function() { console.log("Constructor"); }; Class.prototype = { method: function() { console.log("Method");} } // Creating an instance with new var object1 = new Class(); object1.method(); console.log("New returned", object1); // How to write a factory which can't use the new keyword? function factory(clazz) { // Assume this function can't see "Class", but only sees its parameter "clazz". return clazz.call(); // Calls the constructor, but no new object is created return clazz.new(); // Doesn't work because there is new() method }; var object2 = factory(Class); object2.method(); console.log("Factory returned", object2);

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  • Providing updating suggestions list with javascript, php and ajax

    - by user1104854
    I'm trying to modify this example on making a live updating list to integrate it with my API. So, instead of using GET on the page with the form, I'd like to send it to that page via a function call. So, here's my form // message.php //function to display the hint sent from gethint.php function message_hint($hint){ echo $hint; } //displays the form for sending messages function send_message_form($to_user,$title,$message){ include 'gethint.php'; ?> <table> <form name = "send_message" method="post"> <td>Send A Message</td> <tr><td>To:</td><td><input type = "text" size="50" name="to_user" id = "to_user" value ="<? echo $to_user; ?>" onkeyup="showHint(this.value)"></td></tr> <tr><td>Title:</td><td><input type = "text" size="50" name="message_title"></td></tr> <tr><td>Message:</td><td><textarea rows="4" cols="50" name="message_details"></textarea></td></tr> <tr><td><input type="submit" name="submit_message"></td></tr> </table> </form> <? } Here's the head of message.php <head> <script> function showHint(str){ var to_user = document.getElementById("to_user").value //to_user is the id of the textbox if (str.length==0){ to_user.innerHTML=""; return; } if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); }else{// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function(){ if (xmlhttp.readyState==4 && xmlhttp.status==200){ alert(to_user) //properly displays the name via alert box to_user.innerHTML=xmlhttp.responseText; } } xmlhttp.open("GET","gethint.php?q="+to_user,true); xmlhttp.send(); } </script> </head> The page gethint.php is exactly the same, aside from this at the bottom. //echo $response //this was the original output $message = new messages; $message->message_hint($response);

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  • how to use trigger in Jquery to pass parameter data as well as control (this)

    - by Shantanu Gupta
    I am trying to use same validation funtion for all my controls. But I dont know much in jquery and not been able to pass event handler to the trigger. I want to pass textbox id to my custom function. How can i do this <script src="http://code.jquery.com/jquery-latest.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("#txtFirstName").bind('focusout', function() { $(this).trigger("customblurfocus",[$(this).val(), $(this).val() + " Required !", "Ok !"]); } ); $(this).bind('customblurfocus',function(defaultInputValue,ErrorMessage,ValidMessage) {alert($(this).val()); if($(this).val()=="" || $(this).val()==defaultInputValue) { $(this).val(defaultInputValue); $(this).siblings("span[id*='error']").toggleClass("error_set").text(ErrorMessage).fadeOut(3000); } else { $(this).siblings("span[id*='error']").toggleClass("error_ok").text(ValidMessage).show(1000); } } ); }); </script>

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  • Custom Filter on Dynamic Data Website

    - by Gerardo Gala
    Hi All! I want to able to search on a column that is a foreign key to another table. I don't want to type in the ID (which is the foreign key). I want to search by name. For example, you have a Product Table and a Manufacturer Table. On the Products gridview, I want to be able to search the Manufacturer Name - not Manufacturer Id. But the Products gridview has ProductID. Thanks!

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  • i dont understand error while connecting php and mysql? user denied ? plz help me out to solve. ?

    - by user309381
    class MySQLDatabase { public $connection; function _construct() { $this->open_connection();} public function open_connection() {$this->connection = mysql_connect(DB_SERVER,DB_USER,DB_PASS); if(!$this->connection){die("Database Connection Failed" . mysql_error());} else{$db_select = mysql_select_db(DB_NAME,$this->connection); if(!$db_select){die("Database Selection Failed" . mysql_error()); } }} public function close_connection({ if(isset($this->connection)){ mysql_close($this->connection); unset($this->connection);}} public function query(/*$sql*/){ $sql = "SELECT*FROM users where id = 1"; $result = mysql_query($sql); $this->confirm_query($result); //return $result;while( $found_user = mysql_fetch_assoc($result)) { echo $found_user ['username']; } } private function confirm_query($result) { if(!$result) { die("The Query has problem" . mysql_error()); } } } $database = new MySQLDatabase(); $database->open_connection(); $database->query(); $database->close_connection(); I am getting error like denied for user system@locahost(using password no).i have also other database but it runs fine and i dont also i have set the password after encountered the error what else can do to solve plz help ?

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  • SQL join to grab data from same table via intermediate table

    - by Sergio
    Hi Could someone help me with building the following query. I have a table called Sites, and one called Site_H. The two are joined by a foreign key relationship on page_id. So the Sites table contains pages, and the Site_H table shows which pages any given page is a child of by having another foreign key relation back to the site table with a column called ParentOf. So, a page can be have another page as a parent. Other data is stored in the Site_H table such as position etc, hence why it is separated out. I would like a query that returns the details of a page along with the details of its parent page. I just cant quite think about how to structure the SQL. Thanks

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  • Making span clickable after prepend in jQuery

    - by Saif Bechan
    I have a DIV where some code is presented. When I hover on this DIV I want to present a button that toggles the comments inside the code block. So far I have this: $('.code-block').hover( function(){ $(this).prepend('<span class="code-block-control">toggle comments</span>'); }, function(){ $('.code-block-control',this).remove(); } ); $('.code-block-control').click( function(){ $('.comment').toggle(); } ); The span is presented when I hover over the code block. But when I click the span that is created nothing happens. Even if I change the click function to a simple alert nothing happens. Anyone have any idea on how to fix this.

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  • Tweak Data in Doctrine Migration (say, by running some arbitrary queries)

    - by timdev
    I've got a migration that creates a couple of columns that act as foreign keys. In particular, I'm adding a creator_id and owner_id column to a model. These foreign keys indicate who created, and who currently owns, a particular kind of domain object. Users are managed by sfDoctrineGuardPlugin. What I'd like to do, for the purpose of the migration, is look up the (active) user with the lowest id, and default creator_id/owner_id to that. I don't see any particularly obvious/proper way to run arbitrary operations on the database during a migration. Does anyone know how?

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  • Pass dynamic data to mvc controller with AJAX

    - by Yustme
    How can I pass dynamic data with an AJAX call to an MVC Controller? Controller: public JsonResult ApplyFilters(dynamic filters){ return null; } The AJAX call: $(':checkbox').click(function (event) { var serviceIds = $('input[type="checkbox"]:checked').map(function () { return $(this).val(); }).toArray(); //alert(serviceIds); $.ajax({ type: 'GET', url: '/home/ApplyFilters', data: JSON.stringify({ name: serviceIds }), contentType: 'application/json', success: function (data) { alert("succeeded"); }, error: function (err, data) { alert("Error " + err.responseText); } }); //return false; }); Ideally would be that the filters would contain the serviceIds as a property For example like this: filters.ServiceIds. I got another filter for a date range and that one would be added like so: filters.DateRange. And server side get the filter as a dynamic object in the ApplyFilters()

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  • How can you prevent both jumpiness, and interrupting tweens with animated Flash buttons?

    - by Kevin Suttle
    This is something I've never been able to figure out. You've got a button offscreen you want to animate in. We'll call it 'btn.' You've got a hit area that serves as the proximity sensor to trigger btn's animation. We'll call it 'hitZone' (as to not cause confusion with the hitArea property of display objects). Both btn and hitZone are MovieClips. The listeners go something like this. import com.greensock.*; import com.greensock.easing.*; import flash.events.MouseEvent; var endPoint:Number = 31; hitZone.addEventListener(MouseEvent.ROLL_OVER, onHitZoneOver); hitZone.addEventListener(MouseEvent.ROLL_OUT, onHitZoneOut); hitZone.addEventListener(MouseEvent.CLICK, onHitZoneClick); btn.addEventListener(MouseEvent.ROLL_OVER, onBtnOver); btn.addEventListener(MouseEvent.ROLL_OUT, onBtnOut); btn.addEventListener(MouseEvent.CLICK, onBtnClick); btn.mouseChildren = false; function onHitZoneOver(e:MouseEvent):void { TweenLite.to(btn, 0.75, {x:endPoint, ease:Expo.easeOut}); trace("over hitZone"); } function onHitZoneOut(e:MouseEvent):void { TweenLite.to(btn, 0.75, {x:-1, ease:Expo.easeOut}); trace("out hitZone"); } function onBtnOver(e:MouseEvent):void { hitZone.mouseEnabled = false; hitZone.removeEventListener(MouseEvent.ROLL_OVER, onHitZoneOver); hitZone.removeEventListener(MouseEvent.ROLL_OUT, onHitZoneOut); trace("over BTN"); // This line is the only thing keeping the btn animation from being fired continuously // causing jumpiness. However, calling this allows the animation to be interrupted // at any point. TweenLite.killTweensOf(btn); } function onBtnOut(e:MouseEvent):void { hitZone.mouseEnabled = true; hitZone.addEventListener(MouseEvent.ROLL_OVER, onHitZoneOver); hitZone.addEventListener(MouseEvent.ROLL_OUT, onHitZoneOut); trace("out BTN"); } function onBtnClick(e:MouseEvent):void { trace("click BTN"); } function onHitZoneClick(e:MouseEvent):void { trace("click hitZone"); } The issue is when your mouse is over both the hitZone and btn. The button continuously jumps unless you call TweenLite.killAllTweensOf(). This fixes the jumpiness, but it introduces a new problem. Now, it's very easy to interrupt the animation of the btn at any point, stopping it before it's totally visible on the stage. I've seen similar posts, but even they suffer from the same issue. Perhaps it's a problem with how Flash detects edges, because I've never once seen a workaround for this.

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  • Get all Select Elements in a Form by referencing $(this) instead of $("form select")

    - by DaveDev
    Hi Guys I'm currently getting all the Select elements that exist in a form with the following: $("form").submit(function(event) { // gather data var data = GetSelectData($("form select")); // do submit $.post($(this).attr("action"), data, ..etc) }); Instead of passing in $("form select"), is there a way I can say something like $(this).children('select') // this doesn't work, btw to get all the select elements that exist within the context of the form the submit event is executing for? This will allow me to reduce my code to the following, moving all the functionality into a common function: $("form").submit(function(event) { GatherDataAndSubmit($(this)); }); function GatherDataAndSubmit(obj) { var data = GetSelectData(obj.children('select')); $.post(obj.attr("action"), data, ..etc) } Thanks Dave

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  • How to return a value from facebook javascript connect api fucntions

    - by dezwald
    I am trying to create wrapper functions on facebook javascript connect api methods. My problem is that i can not return a value within the facebook api FB_RequireFeatures method. i want my isFBConnected() function to return true or false based on if i'm logged into facebook or not. What is happening is that when i return true it returns it to the child function, which makes sense however, my global "login" variable does not get set to true. I've tried setting a timeout to wait until the facebook connect finishes executing and still no luck. any help or other solutions are welcome! my isFBConnected wrapper function is stated below: function isFBConnected(){ var api_key = '<?=$this->apiKey?>'; var channel_path = '<?=$this->xdReceiver?>'; var host_url = '<?=$this->hostUrl?>'; var servicePathShort = '<?=$this->servicePathShort?>'; var login = false; FB_RequireFeatures(["Api"], function(){ // Create an ApiClient object, passing app's API key and // a site relative URL to xd_receiver.htm FB.Facebook.init(api_key, channel_path); var api = FB.Facebook.apiClient; // If FB user session exists - load stats data if(api.get_session()!=null){ if(api.get_session().uid!='' && api.get_session().uid!=undefined){ login = true; alert(api.get_session().uid); return true; } } login = false; return false; }); return false; }

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  • impress.js Navigation with active class

    - by ArtGoddess
    I would like to use impress.js in order to make a website, with a navigation bar. In each slide, the corresponding anchor or div must have an "active" class, in order to achieve a different link appearance. I have followed all instructions provided here: https://github.com/Ralt/impress.js/commit/f88feb8cae704ce27bd2168bdb77768f516ac2da#L2R605 but the "active" class on the correct menu must be added. This is the code that generates the menu items. How can I add for example the "active" class in the first link? /* ************************ MENU ***************************** */ // Capitalize first letter of string // @see http://stackoverflow.com/a/1026087/851498 var capitalize = function( str ) { return str.charAt(0).toUpperCase() + str.slice(1); } // `showMenu` API function creates the menu // It defines the names of each entry by the id capitalized. var showMenu = function() { // Create the menu wrapper and the element that will be cloned // for each entry. var menu = document.createElement('div'), el = document.createElement('div'); // Apply some classes menu.className = 'menu'; el.className = 'menu-item'; // Create an element that will be the "button" and append it // to the menu var button = document.createElement('div'); button.className = 'menu-button'; button.textContent = 'Menu'; menu.appendChild(button); // Now, for each div in #impress, add an entry to the menu [].forEach.call(byId('impress').firstElementChild.children, function( child, index ) { var newEl = el.cloneNode(), i = index + 1, text = i + '. ' + capitalize(child.id); // Set the text of the new element newEl.textContent = text; // Add an onclick event to the new element // We need to use a closure to make sure the index is correct (function( index ) { newEl.addEventListener('click', function() { goto(index); }); }( index )); // And append the new element to the menu menu.appendChild(newEl); }); // And append the menu to #impress document.body.appendChild(menu); }; Then, in each click it must be removed the active class on the current, and add it to the clicked element. // Remove the active class from the current active document.querySelector( '.active' )[ 0 ].classList.remove( 'active' ); // And add it to the clicked index byId('impress').firstElementChild.children[ index ].classList.add( 'active' ); Where do I have to apply this code? Thank you!

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  • Javascript tr click event with newly created rows

    - by yalechen
    I am very new to web development. I am currently using tablesorter jquery plugin to create a dynamic table, where the user can add and delete rows. I am having trouble with changing the background color of newly created rows upon clicking. It works fine with rows that are hard coded in html. Here is the relevant code: $(document).ready( function() { $('table.tablesorter td').click( function (event) { $(this).parent('tr').toggleClass('rowclick'); $(this).parent('tr').siblings().removeClass('rowclick'); }); } ) rowclick is a css class here: table.tablesorter tbody tr.rowclick td { background-color: #8dbdd8; } I have tried adding the following to my javascript function that adds a new row: var createClickHandler = function(newrow) { return function(event) { //alert(newrow.cells[0].childNodes[0].data); newrow.toggleClass('rowclick'); newrow.siblings().removeClass('rowclick'); }; } row.onclick = createClickHandler(row); The alert correctly displays the text in the first column of the row when I click the new row. However, my new rows do not respond to the css class. Anyone have any ideas? Thanks in advance.

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  • Implement subitem in SQLite

    - by Mohit Deshpande
    How could I implement a sub item where the item would have a parent to that of the same item. For example, I have a database that holds tasks/todos. Each todo has a title(TEXT), completed(INTEGER [1 if true, 0 if false]), and due date(TEXT) column. I would like to add functionality to have subtasks, where a task could possibly have a parent task. How would I implement this in SQLite for Android? NOT IN SQL! So no foreign keys (triggers are allow, though)! Could I just have a separate table (subtask) and have a foreign key trigger to link subtask(INTEGER parent) to task(INTEGER PRIMARY KEY AUTOINCREMENT _id)? Or should I add a column to my original task table(INTEGER parent)? How could I implement this?

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