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  • How can I stop a default event when using a named function in addEvent?

    - by Rupert
    Normally, if I wish to stop a default event in mootools I can do this: $('form').addEvent('submit', function(e) { e.stop(); //Do stuff here } However, I don't like using an anonymous function in events because I often want to reuse the code. Lets say I have a validate function. I could do this: $('form').addEvent('submit', validate); which works fine until I want to stop the default event. validate obviously doesn't know what e is so I can't just do e.stop(). Also I've tried passing the event as a variable to validate but whenever I use a named function with parameters, the function gets called automatically on domready, rather than on the event firing. Even worse, an error is thrown when the event is fired: What am I doing wrong?

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  • jQuery .closest returns undefined

    - by Andy Holmes
    I've got the code below which works fine, however the jquery to add the items doesnt find the data-parent-room value and just returns undefined. This is the only thing not working :( HTML: <div id="inventoryRooms"> <!--BOX SHART--> <div class="widget box formHolder" data-parent-room="1"> <!--ROOM NAME--> <form class="widget-header rooms"> <input type="text" placeholder="Type Room name" name="roomName[]" class="form-input add-room-input input-width-xxlarge"> <input type="hidden" class="roomId" name="roomId[]"> <input type="hidden" class="inventoryId" name="inventoryId[]" value="<?=$_GET['inventory_id']?>"> <div class="toolbar no-padding"> <div class="btn-group"> <span class="btn saveRoom"><i class="icon-ok"></i> Save Room</span> </div> </div> </form> <!--/END--> <!--GENERIC ROW TITLES--> <div class="widget-header header-margin hide"> <div class="row row-title"> <div class="col-md-3"><h5>ITEM</h5></div> <div class="col-md-3"><h5>DESCRIPTION</h5></div> <div class="col-md-3"><h5>CONDITION</h5></div> <div class="col-md-2"><h5>PHOTOGRAPH</h5></div> <div class="col-md-1 align-center"><h5><i class="icon-cog"> </i></h5></div> </div> </div> <!--/END--> <!--ADD ITEM--> <div class="items"> </div> <!--/END--> <div class="toolbar-small"> <div class="btn-group"> <span class="btn addItem"><i class="icon-plus"></i> Add Item</span> <span data-toggle="dropdown" class="btn dropdown-toggle"><i class="icon-gear"></i> Options<span class="button-space"></span><i class="icon-angle-down"></i></span> <ul class="dropdown-menu pull-right"> <li><a href="#"><i class="icon-trash"></i> Delete Room</a></li> </ul> </div> </div> </div> </div> jQuery: $(document).on('click','.addItem', function(){ $('<!--ROW START-->\ <form class="widget-content item">\ <div class="row">\ <div class="col-md-3"><input type="text" class="form-control" name="itemName[]"></div>\ <div class="col-md-3"><textarea class="auto form-control" name="itemDescription[]" cols="20" rows="1" style="word-wrap: break-word; resize: vertical;"></textarea></div>\ <div class="col-md-3"><textarea class="auto form-control" name="itemCondition[]" cols="20" rows="1" style="word-wrap: break-word; resize: vertical;"></textarea></div>\ <input type="hidden" class="itemId" name="itemId[]" value="">\ <input type="hidden" name="itemInventoryId[]" value="<?=$_GET["inventory_id"]?>">\ <input type="hidden" name="itemParent[]" value="'+$(this).closest().attr('data-parent-room')+'">\ <div class="col-md-2">\ <div class="fileinput-holder input-group">\ <input id="fileupload" type="file" name="files[]" data-url="uploads/">\ </div>\ </div>\ <div class="col-md-1 align-center"><i class="save icon-ok large"> </i>&nbsp;&nbsp;&nbsp;<i class="delete icon-trash large"> </i></div>\ </div>\ </form>\ <!--/ROW END-->').fadeIn(500).appendTo($(this).parents().siblings('.items')); $(this).parent().parent().siblings('.widget-header, .header-margin, .hide').removeClass('hide').fadeIn(); }); Like i say, it all works fine apart from that damn data-parent-room value. Any help is appreciated! using jQuery 1.10.1

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  • AddEvenLister fires off immediately after being attached

    - by Diego
    I want to know how to correctly add an Event Listener like onClick to a dynamic div. Here’s my snippet: var $menu = new Array(2); createDiv('yes'); function createDiv(title) { var $class = 'menuLink'; var $title = 'title'; for(var i=0; i<$menu.length;i++) { $title = 'title'; var newdiv = document.createElement('div'); newdiv.setAttribute('class', $class); newdiv.setAttribute('id', 'item'+i); newdiv.addEventListener('onclick', clickHandle(newdiv.id),false); if (title) { newdiv.innerHTML = $title; } else { newdiv.innerHTML = "No Title"; } document.getElementById('menu').appendChild(newdiv); showMenu(); } } function clickHandle(e) { if(e == 'item0') { alert('Link is' + ' ' + e); }else{ alert('Another Link'); } } Here's my problem, the snippet works fine, It creates my divs, adds id's values and all, but the event fires off as soon as the event is attached, so while the for loop is creating the divs the alert window says: Link is item0, and immediately after this it says: Another Link. Am I misunderstanding this? (I used this method zillions of times in AS3 with the expected result, just attached a function waiting for a click). What I want is that my Divs wait for the user to click on them, not to fire off immediately after of being attached. Thanks for any hint on this one. Greetings. Ps. IE doesn't support addEventListener, but I want to resolve this before cross to the IE sea of madness, but I will appreciate the IE approach as well. - I tried "onclick" and just 'click' into the addEventListener line, both with the same result described above.

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  • Element.appendChild() hosed in IE .. workaround? (related to innerText vs textContent)

    - by Rowe Morehouse
    I've heard that using el.innerText||el.textContent can yield unreliable cross-browswer results, so I'm walking the DOM tree to collect text nodes recursively, and write them into tags in the HTML body. What this script does is read hash substring valus from the window.location and write them into the HTML. This script is working for me in Chrome & Firefox, but choking in IE. I call the page with an URL syntax like this: http://example.com/pagename.html#dyntext=FOO&dynterm=BAR&dynimage=FRED UPDATE UPDATE UPDATE Solution: I moved the scripts to before </body> (where they should have been) then removed console.log(sPageURL); and now it's working in Chrome, Firefox, IE8 and IE9. This my workaround for the innerText vs textContent crossbrowser issue when you are just placing text rather than getting text. In this case, getting hash substring values from the window.location and writing them into the page. <html> <body> <span id="dyntext-span" style="font-weight: bold;"></span><br /> <span id="dynterm-span" style="font-style: italic;"></span><br /> <span id="dynimage-span" style="text-decoration: underline;"></span><br /> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js"></script> <script> $(document).ready(function() { var tags = ["dyntext", "dynterm", "dynimage"]; for (var i = 0; i < tags.length; ++i) { var param = GetURLParameter(tags[i]); if (param) { var dyntext = GetURLParameter('dyntext'); var dynterm = GetURLParameter('dynterm'); var dynimage = GetURLParameter('dynimage'); } } var elem = document.getElementById("dyntext-span"); var text = document.createTextNode(dyntext); elem.appendChild(text); var elem = document.getElementById("dynterm-span"); var text = document.createTextNode(dynterm); elem.appendChild(text); var elem = document.getElementById("dynimage-span"); var text = document.createTextNode(dynimage); elem.appendChild(text); }); function GetURLParameter(sParam) { var sPageURL = window.location.hash.substring(1); var sURLVariables = sPageURL.split('&'); for (var i = 0; i < sURLVariables.length; i++) { var sParameterName = sURLVariables[i].split('='); if (sParameterName[0] == sParam) { return sParameterName[1]; } } } </script> </body> </html> FINAL UPDATE If your hash substring values require spaces (like a linguistic phrase with three words, for example) then separate the words with the + character in your URI, and replace the unicode \u002B character with a space when you create each text node, like this: var elem = document.getElementById("dyntext-span"); var text = document.createTextNode(dyntext.replace(/\u002B/g, " ")); elem.appendChild(text); var elem = document.getElementById("dynterm-span"); var text = document.createTextNode(dynterm.replace(/\u002B/g, " ")); elem.appendChild(text); var elem = document.getElementById("dynimage-span"); var text = document.createTextNode(dynimage.replace(/\u002B/g, " ")); elem.appendChild(text); Now form your URI like this: http://example.com/pagename.html#dyntext=FOO+MAN+CHU&dynterm=BAR+HOPPING&dynimage=FRED+IS+DEAD

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  • Cannot change style of HTML elements using jQuery by content script

    - by Moctava Farzán
    I'm writing an extension for chrome as "Content script". My extension should change the background color of google home page (https://www.google.com) I wrote this code (including jquery): $(".gsib_a").style="background:#FF0000"; But not worked. I'm sure I added jQuery to content script, and the manifest.json file is set. I am sure because this code works: $(".gsib_a").hide(); And I am sure changing style of the element with class of gsib_a is exactly what I need and affects. Because I've tested it by Chrome Developer Tools. Okay, who knows the problem?

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  • How do I keep users from spoofing data through a form?

    - by Jonathan
    I have a site which has been running for some time now that uses a great deal of user input to build the site. Naturally there are dozens of forms on the site. When building the site, I often used hidden form fields to pass data back to the server so that I know which record to update. an example might be: <input type="hidden" name="id" value="132" /> <input type="text" name="total_price" value="15.02" /> When the form is submitted, these values get passed to the server and I update the records based on the data passed (i.e. the price of record 132 would get changed to 15.02). I recently found out that you can change the attributes and values via something as simple as firebug. So...I open firebug and change the id value to "155" and the price value to "0.00" and then submit the form. Viola! I view product number 155 on the site and it now says that it's $0.00. This concerns me. How can I know which record to update without either a query string (easily modified) or a hidden input element passing the id to the server? And if there's no better way (I've seen literally thousands of websites that pass the data this way), then how would I make it so that if a user changes these values, the data on the server side is not executed (or something similar to solve the issue)? I've thought about encrypting the id and then decrypting it on the other side, but that still doesn't protect me from someone changing it and just happening to get something that matches another id in the database. I've also thought about cookies, but I've heard that those can be manipulated as well. Any ideas? This seems like a HUGE security risk to me.

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  • How can I make an prototype ajax request with an array of values as a parameter?

    - by andresbravog
    i'm trying to make a ajax update in prototype with some values from a multirecordselect that sends a requests like. Parameters: {"action"=>"use_campaign", "campaigns"=> ["27929","27932"] , "advertiser_id"=>"", "controller"=>"admin/reporting", "ad_id"=>""} as you can see the request sends the "campaigns" elements as an array of values, i'm trying to do the same with this js code over prototype 7. // get the campaigns var campaign_ids = {}; var campaigns = $('filter_form').getInputs("hidden","report[campaigns][]"); campaigns.each( function(field) { campaign_ids.push(field.value); }); new Ajax.Updater('ad_filter', '/admin/reporting/use_campaign', { method : 'get', asynchronous : true, evalScripts : true, parameters : { 'advertiser_id' : $('filter_form')['report[advertiser_id]'].value, 'ad_id' : $('filter_form')['report[ad_id]'].value, 'campaigns' : campaign_ids } }); the campaigns_ids is getting the correct info as an array like: [ "27929", "27932" ] but seems that prototype ajax update is sending a request like: http://my_domain/admin/reporting/use_campaign?ad_id=&advertiser_id=&campaigns=27929&campaigns=27932 what sends parameters like: Parameters: {"action"=>"use_campaign", "campaigns"=> "27929" , "advertiser_id"=>"", "controller"=>"admin/reporting", "ad_id"=>""} I also tryed with Object.toJSON(campaign_ids) but i only get an escaped string like Parameters: {"action"=>"use_campaign", "campaigns"=>"[\"27929\",\"27932\"]" , "advertiser_id"=>"", "controller"=>"admin/reporting", "ad_id"=>""} There is anyway to do this as I wish? Thanks for all.

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  • Search row with highest number of cells in a row with colspan

    - by user593029
    What is the efficient way to search highest number of cells in big table with numerous colspan (merge cells ** colspan should be ignored so in below example highest number of cells is 4 in first row). Is it js/jquery with reg expression or just the loop with bubble sorting. I got one link as below explainig use of regex is it ideal way ... can someone suggest pseudo code for this. High cpu consumption due to a jquery regex patch <table width="156" height="84" border="0" > <tbody> <tr style="height:10px"> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> </tr> <tr style="height:10px"> <td width="10" style="width:10px; height:10px" colspan="2"/> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> </tr> <tr style="height:10px"> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px" colspan="2"/> </tr> <tr style="height:10px"> <td width="10" style="width:10px; height:10px" colspan="2"/> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> </tr> </tbody> </table>

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  • jQuery and first element in the clicked element

    - by user2956944
    i have 2 div elements, and if i click on the first div then should the other div which is inside of the clicked div displayed, but i can't understand who it works, my jquery code is so: jQuery('.infobutton').click(function(){ var clickedID = jQuery(this).attr('id'); jQuery(clickedID).children('div').toggle(); }); <div class="infobutton" id="infobtn1"> <div class="content">some content</div> </div> I get everytime right id, i tried also with .first(), .parent(), .children('.content') It's possible to do this with jQuery?

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  • By passing div id, can i change target of text replacement?

    - by crosenblum
    I am using the code below to replace text inside a div. But I need to loop through a specific div, instead of everything on the page, that is the div's text nodes... I just do not understand how to refer to the div in the code below. (function (parent) { var childs = parent.childNodes; // if there are children to this if (childs && childs.length) { // loop through each text node for (var i = 0, node; node = childs[i]; i++) {

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  • Bypassing Browser popup blocking when automatic session timout occurs

    - by Joseph
    Hi all, Please help regarding the following issue. I have enabled the "Block popup" option in browser. We are doing a session validation using a background ajax call to check the session is active or not. If the session is not active for a desired interval a popup window will come for notification. Now comming to the problem . since the session notification popup is comming automatically without any client interaction, This popup is blocked by the browser. But if a client clicks anyother popup window in the form that popup window will not be blocked by the browser.

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  • Connection Timeout Extension/Detection

    - by ircmaxell
    Well, let me start off by explaining what I'm trying to do. I have an application that stalls a HTTP connection until new data is available (sometimes a few seconds, sometimes 30 minutes or so). Right now, the system works fine if the data is sent within a few minutes. The problem I'm facing, is that it doesn't seem that XHR recognizes a dropped connection... So instead of killing the current connection and reconnecting when it detects a dropped connection, it just sits there. I'd really not like to have it force-reconnect every minute or two (That's one reason this app was written, to stop the need for polling). So, my questions are as follows: Is there a way to detect a dropped (not closed) TCP connection with XHR? Is there a way that I can tell XHR not to timeout (I saw IE8 has the .timeout property) Would it be better to send a header (or some other content) every now and then (say once per minute) down the pipe to keep the connection open? Thanks.

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  • Image not loading from cache after it's loaded in an iframe

    - by Amir
    I'm loading an image in an iframe and then (once the iframe is loaded) loading the image on the page. But most browsers seem to be loading the image twice. Why isn't the img tag being loading from the cache? Something like this: var loader = $('<iframe />').appendTo('body')[0]; loader.onload = function() { $('body').append('<img src="' + imgsrc + '" />'); }; loader.src = imgsrc; http://jsfiddle.net/amirshim/na3UA/ I'm using fiddler2 to see the network traffic. In case you want to know why I want to do this, check out this question

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  • Add class to textbox when invalid, using .Net Validators

    - by CoreyT
    I'm working on a multipage form in .Net using AJAX (UpdatePanels). I am stuck right now trying to get a class added to the textbox that is invalid to basically highlight it red. I found a sample online using this code: $("span.invalid").bind("DOMAttrModified propertychange", function (e) { // Exit early if IE because it throws this event lots more if (e.originalEvent.propertyName && e.originalEvent.propertyName != "isvalid") return; var controlToValidate = $("#" + this.controltovalidate); var validators = controlToValidate.attr("Validators"); if (validators == null) return; var isValid = true; $(validators).each(function () { if (this.isvalid !== true) { isValid = false; } }); if (isValid) { controlToValidate.removeClass("invalid"); } else { controlToValidate.addClass("invalid"); } }); That works perfectly, in IE only. For some reason this code does not ever fire in Firefox. I've looked up the DOMAttrModified event and it sounds like this should work in Firefox, hence it being in the code. I must be missing something though because it does not work. I'm open to other solutions for what I am trying to accomplish here if anyone has something good. Basically the form is 3 pages right now. Page 1 has a variable number of fields that require validation. It could be 5, or 13 fields, based on a checkbox. Page 2 has another set of fields that need to be validated separately. Obviously when I am on page 1 it should not try to validate page 2, and vice versa. Pleas help with either some help to fix the code I have, or an alternative.

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  • Layout form fields horizontally

    - by Don
    I'm using Ext JS 2.3.0 and have a bunch of fields contained within a FieldSet I'd like to have them laid out side-by-side instead, ideally with the label on top of the field instead of to the left of it. The relevant code is: var kpiFilterCombo = new Ext.form.ComboBox({ name: 'kpi', store: this.dashboardInst.servicesModel.getAvailableKPIsStore() }); var kpiLower = new Ext.form.TextField({ fieldLabel: "Lower", name: 'lowerBound' }); var kpiUpper = new Ext.form.TextField({ fieldLabel: "Higher", name: 'upperBound' }); var kpiFilterFieldset = new Ext.form.FieldSet({ title: locale['label.kpi.condition'], checkboxToggle: true, collapsed: true, autoHeight:true, items : [ kpiLower, kpiFilterCombo, kpiUpper, ] });

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  • 'checked' is null or not an object - only IE

    - by Srinath
    Hi This problem exists only in IE browser, in mozilla its working fine... i have to delete a row on click on checkbox.... Here is my code : <table width="100%" id="seller"> <tr id="row_1" class="row"> <td><input type="checkbox" name="delete" id="delete" value="1" /></td> </tr> <tr id="row_2" class="row"> <td><input type="checkbox" name="delete" id="delete" value="2" /></td> </tr> </table> <input type="button" id="delete" name="delete" value="Delete" onclick="delete_row('seller')"/> var delete_ids = []; function delete_row(tableID){ var rows = document.getElementsByClassName('row'); var delItems = document.getElementsByName('delete'); for(var i=0;i < rows.length;i++){ alert(delItems[i].checked); if(delItems[i].checked == true){ delete_ids.push(rows[i].id); jQuery(rows[i]).remove(); i = i-1; } } } Showing error on page : 'checked' is null or not an object. can one please tell me the fix . thanks in advance, sri..

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  • Replace a list of emoticons with their images

    - by Damiano
    Hello, I have an array with: emoticons = { ':-)' : 'smile1.gif', ':)' : 'smile2.gif', ':D' : 'smile3.gif' } then i have a variabile with the text. var text = 'this is a simple test :)'; and a variable with the url of the website var url = "http://www.domain.com/"; How to write a function that replace the symbols with their images? The <img> tag result should be: <img src="http://www.domain.com/simple2.gif" /> (I have to concatenate the url varible to the name of the image). THank you very much!

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  • Marker on Google Map added only once.

    - by Vafello
    I have the following code: function clicked(overlay, latlng) { var icon3 = new GIcon(); icon3.image = "marker.png"; icon3.iconAnchor = new GPoint(15, 40); var marker2 = new GMarker(latlng, { icon: icon3, draggable: true, title: 'Drag me' }); map.addOverlay(marker2); } Each time I click on the map a new marker is placed on the map. The problem is that I need only one marker and if I click several times, each time a new marker is added. How to change the code so only one marker is placed and when the map is clicked again it just changes its location?

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  • jQuery plugin to wrap text around images + support IE6

    - by Alex
    This is a tall order, but is there a jQuery or Mootools (or other framework) plugin to wrap text around images and support IE6? I've tried the jQSlickWrap, but unless the browser supports HTML 5, you're out of luck. What's strange is that IE 6 supports the jQuery Background Canvas plugin, which uses the CANVAS object (via excanvas.js) just as this plugin does. Thanks.

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  • Refresh table after using jQuery .append()

    - by Aaron Salazar
    The following code gets a JSON object and then spits its contents out into a <table>. The first time I do it I get my JSON content just fine. However, when I refresh, the refreshed data is stuck onto the bottom of my table. How do I refresh the data to show the new data only? I tried using .remove() but there was an obvious deleting and then a refresh of data. $(function() { $('#ReportedIssue').change(function() { //$('.data').remove() $.getJSON('/CurReport/GetUpdatedTableResults', function(json) { for (var i = 0; i < json.GetDocumentResults.length; i++) { $('#DocumentInfoTable').append( "<tr class='data'>" + "<td>" + json.GetDocumentResults[i].Document.DocumentId + "</td>" + "<td>" + json.GetDocumentResults[i].Document.LanguageCode + "</td>" + "<td>" + json.GetDocumentResults[i].ReportedIssue + "</td>" + "<td>" + json.GetDocumentResults[i].PageNumber + "</td>" + "</tr>" ); }; }); }); }); Thank you, Aaron

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