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  • stopping backspace on multiple browsers using jQuery

    - by jboyd
    I am attempting to stop a backspace keydown event from being handled by browsers, I'm using the jquery library, so I need to get the original event, but on some browsers (firefox at least) I get an error when trying to set the original events keyCode = 0, it gives and error saying that only a getter exists for that property. function blockBackspace(event) { var altKey = event.originalEvent.altKey; var srcElementType = event.originalEvent.srcElement; if( (altKey) || ((event.keyCode == 8) && (srcElementType != "text" && srcElementType != "textarea" && srcElementType != "password")) || ((event.ctrlKey) && ((event.keyCode == 78) || (event.keyCode == 82)) ) || (event.keyCode == 116) ) { event.keyCode = 0; event.returnValue = false; event.originalEvent.keyCode = 0; event.originalEvent.returnValue = false; //sets process backspaceFlag to keep multiple handlers from removing text processBackspace = true; } } so I'm not exactly sure what to do next, every solution I find yields more problems. There must be ways around this problem or else other text areas (that's kind of what I'm building) would not work

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  • Prototypes Object.extend with multiple objects that contain there own functions.

    - by erickreutz
    How would I achieve something along the lines of this.. var Persistence = new Lawnchair('name'); Object.extend(Lawnchair.prototype, { UserDefaults: { setup: function(callback) { // "save" is a native Lawnchair function that doesnt //work because // "this" does not reference "Lawnchair" // but if I am one level up it does. Say if I defined // a function called UserDefaults_setup() it would work // but UserDefaults.setup does not work. this.save({key: 'key', value: 'value'}); // What is this functions scope? // How do I access Lawnchairs "this" } }, Schedule: { refresh: function(callback) { } } }); //this get called but doesnt work. Persistence.UserDefaults.setup();

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  • adding a js method

    - by Sorin Buturugeanu
    Hi! I have a js function that is named getID which is basically return document.getElementById(id) I want to make another function, getTag that would return getElementsByTagName. The part that I can't seem to manage is that I want to be able to call them like this: getID('myid').getTag('input') = so this would return all the input elements inside the element with the id myid Thanks! ps: getTag would also have to work if it's called by it's own, but then it would just return document.getElementsByTagName

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  • Is there way to extend jQuery to handle a custom enter key event?

    - by Ken
    I write the following code all the time to handle when the enter key pressed: $("#selectorid").keypress(function (e) { if (e.keyCode == 13) { var targetType = e.originalTarget ? e.originalTarget.type.toLowerCase() : e.srcElement.tagName.toLowerCase(); if (targetType != "textarea") { e.preventDefault(); e.stopPropagation(); // code to handler enter key pressed } } }); Is there a way to extend jQuery so that I could just write: $("#selectorid").enterKeyPress(fn);

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  • Django: tinyMCE and cross site javascript

    - by pistacchio
    Hi, follow this question, I was able to set some textareas in my admin page as richtext inputs. The most voted answer suggests to follow an example and is what i did. Also, it talks about a problem concerning "blank pages". I'm having the same problem and I'm not able to solve it. I have my media files served by a different server, so MEDIA_URL points to a different host with a different port. To simulate this in my dev environment, I also serve media files from a different port. Debugging the failing javascript, Chrome yelds: Unsafe JavaScript attempt to access frame with URL http://localhost:8000/admin/blog/post/add/ from frame with URL http://localhost:88/s3mangerie/js/tiny_mce/themes/advanced/image.htm. Domains, protocols and ports must match. How to solve this problem? Thanks

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  • mouseover producing multiple images works in Firefox, but not i.e.

    - by tcantrel
    The code below allows the user to hover over 1 object and it not only replaces the object but also shows an additional object between the buttons. It works great in Firefox, but does not in Internet Explorer. HELP webpage: http://www.isp.ucar.edu/ Thx, Terri if ( < ocument.images) { img1on = new Image(); img1on.src = "images/buttons/button-beachon-on.gif"; img1off = new Image(); img1off.src = "images/buttons/button-beachon.gif"; img2on = new Image(); img2on.src = "images/buttons/button-bgs-on.gif"; img2off = new Image(); img2off.src = "images/buttons/button-bgs.gif"; img3on = new Image(); img3on.src = "images/buttons/button-iam-on.gif"; img3off = new Image(); img3off.src = "images/buttons/button-iam.gif"; img4on = new Image(); img4on.src = "images/buttons/button-nvia-on.gif"; img4off = new Image(); img4off.src = "images/buttons/button-nvia.gif"; img5on = new Image(); img5on.src = "images/buttons/button-utls-on.gif"; img5off = new Image(); img5off.src = "images/buttons/button-utls.gif"; img6on = new Image(); img6on.src = "images/buttons/button-water-on.gif"; img6off = new Image(); img6off.src = "images/buttons/button-water.gif"; img7on = new Image(); img7on.src = "images/buttons/button-exploratory-on.gif"; img7off = new Image(); img7off.src = "images/buttons/button-exploratory.gif"; // second image that does not appear in original button space img1ad = new Image(); img1ad.src = "images/buttons/beachon-overview-sm.gif"; img2ad = new Image(); img2ad.src = "images/buttons/bgs-overview-sm.gif"; img3ad = new Image(); img3ad.src = "images/buttons/iam-overview-sm.gif"; img4ad = new Image(); img4ad.src = "images/buttons/nvia-overview-sm.gif"; img5ad = new Image(); img5ad.src = "images/buttons/utls-overview-sm.gif"; img6ad = new Image(); img6ad.src = "images/buttons/water-overview-sm.gif"; img7ad = new Image(); img7ad.src = "images/buttons/exploratory-overview-sm.gif"; } function imgOn(imgName) { if ( < ocument.images) { document[imgName].src = eval(imgName + "on.src"); document["holder"].src = eval(imgName + "ad.src"); } } function imgOff(imgName) { if ( < ocument.images) { document[imgName].src = eval(imgName + "off.src"); document["holder"].src = "images/buttons/isp-overview-sm.gif"; } }

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  • javascript to launch only ONE window for a Java applet with a given URL

    - by Jonathan Dugan
    I need a javascript solution to launch only one window, with a Java Applet in it, for a given URL. I found a solution posted here on Stack Overflow - here: http://stackoverflow.com/questions/528671/javascript-window-open-only-if-the-window-does-not-already-exist But it doesn't seem to work .. I get Error: launchApplication.winrefs is undefined Line: 29 I can't seem to post the code in this little box and make it look right below, so the code (my working code, plus the solution from above) is here: http://pastie.org/833879 Where is the error? As I understand it, the hash or array or whatever I use to store the called references to the windows opened this way will be lost if the calling window is closed. Is there a way to make this work even if the calling window is closed and reopened? To basically ask the browser: "Do you have a window open with the following URL?" and if so, "What is the reference to that window?" (so I can raise it).

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  • organise javascript code based on page

    - by David
    Hi I am relatively new to javascript development. At the moment I have a single javascript file with lots of little misc bits of code that get called in different part of the website. For example I have an event handler for some google maps stuff that is only called on 1 single page, I have some validation stuff for my contact page etc etc. My question, is how best to organise this code - given that each page only requires very little code but its different and specific per page? Oh, I am using jquery if that makes a difference.

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  • JavaScript data formatting/pretty printer

    - by Dan
    I'm trying to find a way to 'pretty print' a JavaScript data structure in a human-readable form for debugging. I have a rather big and complicated data structure being stored in JS and I need to write some code to manipulate it. In order to work out what I'm doing and where I'm going wrong, what I really need is to be able to see the data structure in its entirety, and update it whenever I make changes through the UI. All of this stuff I can handle myself, apart from finding a nice way to dump a JavaScript data structure to a human-readable string. JSON would do, but it really needs to be nicely formatted and indented. I'd usually use Firebug's excellent DOM dumping stuff for this, but I really need to be able to see the entire structure at once, which doesn't seem to be possible in Firebug. Any suggestions welcome, thanks in advance.

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  • Why is the event object different coming from jquery bind vs. addEventListener

    - by yodaisgreen
    Why is it when I use the jQuery bind the event object I get back is different from the event object I get back using addEventListener? The event object resulting from this jQuery bind does not have the targetTouches array (among other things) but the event from the addEventListener does. Is it me or is something not right here? $(document).ready (function () { $("#test").bind("touchmove", function (event) { console.log(event.targetTouches[0].pageX); // targetTouches is undefined }); }); vs. $(document).ready (function () { var foo = document.querySelectorAll('#test') foo[0].addEventListener('touchmove', function (event) { console.log(event.targetTouches[0].pageX); // returns the correct values }, false); });

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  • What are some models that you know of for PHP OOP?

    - by Doug
    I recently learned a lot about MVC model which is a very interesting concept. I would assume there are a lot more models out there, and I thought it would be great for people to share some models. Here's my contribution: MVC Model: http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller

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  • What is a good Javascript RDFa parser implementation?

    - by tremoloqui
    I am looking to implement a client side RDFa based formatting for a web application. This would be similar to Mark Birbeck's ubiquity-rdfa project. Mark's project looks fantastic but it has at least two drawbacks: It is slow. Adding RDFa formatting to a simple page causes a noticeable delay in page loading. It is complex. The ubiquity-rdfa project makes use of the w3c fresnel specification which is complex way to add simple annotations to client markup. I am looking for a lighter weight way of adding annotations through client code and I don't mind doing some work to get it. What I would like is a fast and reliable Javascript RDFa parser. Some implementations that I have found include: W3C RDFa bookmarklet parser Elias Torres RDFa extractor I am interested to know if you would recommend one of these, or another, RDFa Javascript implementation. Thanks!

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  • JS: capture a static snapshot of an object at a point in time with a method

    - by Barney
    I have a JS object I use to store DOM info for easy reference in an elaborate GUI. It starts like this: var dom = { m:{ old:{}, page:{x:0,y:0}, view:{x:0,y:0}, update:function(){ this.old = this; this.page.x = $(window).width(); this.page.y = $(window).height(); this.view.x = $(document).width(); this.view.y = window.innerHeight || $(window).height(); } I call the function on window resize: $(window).resize(function(){dom.m.update()}); The problem is with dom.m.old. I would have thought that by calling it in the dom.m.update() method before the new values for the other properties are assigned, at any point in time dom.m.old would contain a snapshot of the dom.m object as of the last update – but instead, it's always identical to dom.m. I've just got a pointless recursion method. Why isn't this working? How can I get a static snapshot of the object that won't update without being specifically told to? Comments explaining how I shouldn't even want to be doing anything remotely like this in the first place are very welcome :)

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  • PHP javascript link id

    - by Jordan Pagaduan
    <?php //connect to database .... //select query .... if(isset($_GET["link"])==false){ echo "sample 1"; }else{ echo "sample 2" ; } ?> <script type="javascript"> function Link(id) { location.href='linktest.php&link='+id; } </script> <html> <input type="button" value="link test" onclick="javascript: Link<?php $row['id']; ?>"> </html> (assumed question) How do I force the onclick event to contain the value of $row['id']?

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  • Why does a checkbox's "checked" attribute return the opposite of it's actual value on click event?

    - by Kappers
    I've got the following HTML <li><input type="checkbox" /><label>This is the label!</label></li> I bound a click event to the li, and let the click event bubble up to the li before doing anything else. $('li').each(function(i){ var item = $(this); var checkbox = $("input[type='checkbox']", item); item.bind('click', function(e){ var isChecked = checkbox.is(':checked'); console.log(isChecked); e.stopPropagation(); }); }); Starting with an unchecked checkbox, when the click event fires, isChecked returns true when I click on the checkbox, but returns false when I click on the label or li. Does anyone know why?

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  • assigning variables to DOM event listeners when iterating

    - by ptrn
    I'm thinking there's something basic stuff I'm missing here; for (var i=1; i<=5; i++) { var o = $('#asd'+i); o.mouseover(function() { console.info(i); }); } When hovering over the five different elements, I always get out the last value from iteration; the value 5. What I want is different values depending of which element I'm hovering, all from 1 to 5. What am I doing wrong here?

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  • Disable JavaScript on window.open

    - by sonofdelphi
    I have a set of (X)HTML files that I need to open with window.open() from an application homepage. I am able to open these files and read the data within them. function openFiles() { var files = document.querySelectorAll('td a'); //The list of files to scan is stored as links in an HTML table for(var i = 0; i<files.length; i++){ //Open each file in a browser window win = window.open(files[i].href); //Can I prevent the JavaScript in these files from executing? } } But the problem is that the scripts within the HTML files also get executed when opened like this. This is rather time-consuming and unnecessary; also, the scripts within those files may have side-effects. Is there a way to prevent JavaScript from executing on load?

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  • Passing var from php to javascript

    - by marc-andre menard
    I try to do something pretty strait... getting php value to javascript here is the page here is the code.. <script language="javascript"> <?php $imagepath = $_REQUEST["path"]; ?> var whatisthepath = <?php $imagepath; ?> alert (whatisthepath); </script> ALWAYS getting UNDEFINE.... why ?

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  • How will Facebook Authenticate let me ID a user?

    - by Donny P
    I have a website where I need to have data that is ID'd by user. For example, they enter their favorite food: userid favorite food ------ ------------- 1 french fries 2 tacos 3 fish sticks 4 chipotle When I use Facebook Authentication, what identifier will I use for the userid? I'm assuming it's not name, since this would create duplicates. Is it just the person's Facebook ID? Also is the correct API to use for 3rd party websites 'Facebook Connect' or 'Facebook Authorization' or something else?

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  • ASP.Net Javascript integration

    - by tcables
    I am trying to use the following script in asp.net: <script language="javascript" type="text/javascript"> function checktext() { var txt = document.getElementById('tbComments'); if (txt.Text.Length > 0) { alert('Thank you for submitting feedback.'); return true; } else { alert('Sorry, you must enter text before submitting.') return false; } } </script> <asp:Button ID="btnSave" runat="server" Text="Submit" onclick="btnSave_Click" OnClientClick="checktext();" /> I have tried using it on the onclick event.. the script will just not work at all. Any Ideas?

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