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  • Can JavaScript load raw bytes to use in HTML 5 Canvas?

    - by whiskeyspider
    Say I had a file like... http://my.website.com/myfile.raw and this file was just raw bytes, representing an intensity image. Is it possible to grab this data and read the bytes in JavaScript? And then using it with HTML 5 canvas (e.g., putImageData) to draw an image? Or is there some other way to do this in the browser without Java or Flash?

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  • Returning the Name of a column header

    - by Jason Kelly
    I need your help, Given the html table below, how can I create a javascript function that will, at the click of a mouse, alert me the name of the column header? Ie. if I click on the COLORS header, a javascript box will popup and alert("COLORS")? <html> <head> </head> <body> <table border="1" cellspacing="1" width="500"> <tr> <td>FRUITS</td> <td>COLORS</td> <td>VEGGIES</td> <td>NUMBERS</td> </tr> <tr> <td>apples</td> <td>red</td> <td>carrots</td> <td>123</td> </tr> <tr> <td>oranges</td> <td>blue</td> <td>celery</td> <td>456</td> </tr> <tr> <td>pears</td> <td>green</td> <td>brocoli</td> <td>789</td> </tr> <tr> <td>mangos</td> <td>yellow</td> <td>lettuce</td> <td>098</td> </tr> </table> </body> </html>

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  • Html 5 Time Tag not recognized by IE8 when cloning

    - by matsientst
    I have been having trouble getting IE to recognize the new Time tag in this context. This all works great in FF. Here is the code: var origComment = $('.articleComment:first div'); if (origComment.length > 0) { var commentHtml = origComment.clone(true); commentHtml.find('time').text('today'); var html = '<article class="' + ((side == 'LEFT') ? '' : 'that') + '">' + commentHtml.html() + '</article>'; $(html).insertAfter('.articleComment:last'); The HTML looks something like this: <article class="articleComment that"> <div id="156" class="parent"> <div class="byline"> <p>Posted <time pubdate="pubdate" datetime="2010-05-07T09:11:08">today</time> by<br/> <a class="username" href="/u/matt">matt</a> </p> <p class="report"><a href="#">Report?</a></p> </div> <div class="comment">left</div> </div> </article> IE can find the Time tag but it returns a collection of 2 elements. I assume the beginning and ending. However, I cannot access it to modify it. I have tried val(), html() and text(). I also can't drop to the actual HTMLElement. I can't get(0).innerHTML. But, if I .get(0).tagName it actually is the Time tag I've got. Any ideas? I hope this makes sense.

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  • Eror while showing returned value on parent window from chield (Dialog box) window using JSF Trinida

    - by Navnath
    Hi There, I am using Myfaces and Trinidad tld's for page design. In that, I am trying to implement Dialog box which will going to open on button click with tacking some value from parent window and return result to Parent window. Now the problem is I can send value to Dialog box and also get return from dialog box successfully, but there is problem to show return value on Parent window because parent window is not reflecting that value and ask for refresh page. When I refresh page, it again open the pop up, i.e. it resending the previous request. Here is my return code. private UIXInput input; public UIXInput getInput() { return input; } public void setInput(UIXInput input) { this.input = input; } public void returned(ReturnEvent event) { if (event.getReturnValue() != null) { getInput().setValue(event.getReturnValue()); RequestContext afContext = RequestContext.getCurrentInstance(); afContext.addPartialTarget(getInput()); } } Next is I have bind input variable with field which need to reflect return value. Here is .jspx code. I have download Trinidad dialog code and try to run on local system, but it not showing any dialog box. But once I remove partialSubmit="true" attribute from comment button which shows dialog box, Then I can see dialog box. Is this attribute making an above error? I hope I have explain my problem clearly. Please...Please let me know any any kind of solution, suggestion. I have spend almost a week to resolve this issue, but.......didn't succeed. Thank You in advance, Navnath Kumbhar.

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  • HTML 5 Video Error Media Src Not Supported

    - by Nirmal
    So I was working on a toy website (http://nirmalpatel.com/yeah/index.html). If you check the source, you can see that I have linked a m4v and ogg version. When I load this page from my own computer using a url that starts with file:// the page works fine in Safari, Chrome and Firefox. However, after I upload all of the videos and the HTML to my server Firefox stops working. I don't think it's a permissions issue as both videos have the same permission.

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  • Track only iframe history

    - by evanwong
    I have a page which contains an iframe and I want to track the history of the iframe only. I tried to use the history object like this: <!DOCTYPE html> <html> <head> <title></title> <script type="text/javascript"> function checkFrameHistory() { alert(window.frames["test2"].history.length); } function checkThisHistory() { alert(history.length); } </script> </head> <body> <iframe name="test2" src="test2.html"></iframe> <div> <input type="button" onclick="checkFrameHistory()" value="Frame history"/> <input type="button" onclick="checkThisHistory()" value="This history"/> </div> </body> </html> test2.html <!DOCTYPE html> <html> <head> <title></title> <script type="text/javascript"> function checkMyHistory() { alert(history.length); } </script> </head> <body> <div> Test2 </div> <div> <input type="button" onclick="checkMyHistory()" value="My history"/> </div> </body> </html> but it actually gave me the history including the parent window. For instance, I went to another site in the main window and came back to my iframe test site. Both window.frames["test2"].history.length and history.length still gave me the same count by increasing the length by 2. Did I do it wrong? Is there a way to track only the iframe history?

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  • Is html/javascript equivalent to as3/flex?

    - by DJ.
    Hello my fellow coders, As i notice for a while now (like everybody else in the industry), the RIA market is shifting from AS3/Flex to HTML/Javascript. What i would like to know is? Is html/javascript as powerfull as as3/Flex or are they entirely different. With other words can i build the exact same applictions with HTML(4/5) and Javascript as i can do with AS3/Flex? I'm not looking for the speed comparison? or bashing one technology over the other? I just want to know if is good for me to dive into javascript, JQuery...... PS. If there is a nother post on stackoverflow with the exacte question. please share the link. Thanks. Thank you.

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  • Will Visual Studio 2010 support HTML 5?

    - by Chris
    Since Visual Studio 2010 is slated for release in March of 2010 and HTML 5 is now starting to be used even more widely, I would like to know if Visual Studio will ship with HTML 5 templates, standard controls and support for the more common markup? A definition for support of HTML 5 would be that any new version of Visual Studio should have similar support for code-completion, validation and markup that is currently supported for HTML 4.01 and XHTML 1.0 and 1.1. Update From the Visual Web Develolper Team Blog: HTML 5 intellisense and validation schema for Visual Studio 2008 and Visual Web Developer is for downloading. Follow the instructions posted on the page to install the new scheme. Seems like the Visual Studio Team will be supporting HTML 5 after all.

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  • Adobe edge animation fails to load first time in Opera, Crome but works in Firefox and Safari

    - by user3721777
    I have quite a serous problem here since I work on this animation for a while, I have a Adobe Edge Animation (done in CC) that fails to load the first time in Opera and Crome but does work in Firefox and Safari. It fail to load every time coming from another page. Only work if you reload. The problem persist both locally and online. It does work in preview every single time. I you can push me in the right direction, that would be great. Thanks! Here you can see the animation: http://tierraburritos.com/test/laCarta.html

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  • Implementing zoom on a fixed point, javascript/canvas

    - by csiz
    I want to implement zooming on the mouse pointer with the mouse wheel. That is scaling the image while the point under the mouse pointer stays fixed. Here is my code, which doesn't work very well var scala = 1 + event.wheelDelta / 1000; canvas.context.translate(-canvas.mouse.x * ( scala - 1 ) / canvas.scale,-canvas.mouse.y * ( scala - 1 ) / canvas.scale); canvas.context.scale(scala,scala); canvas.scale *= scala; //canvas.scale is my variable that is initially set to 1. //canvas.mouse is my variable that represents the mouse position relative to the canvas

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  • How do I delete files in a class?

    - by user3682906
    I want to have a CRUD management on my gallery but I have no idea how. I have searched the internet but I did not find what I was looking for. This is my class: class Gallery { public function renderImages($map) { $images = ""; foreach (glob($map ."*.{jpeg,jpg,png,gif}", GLOB_BRACE) as $image){ $images .= "<a href='".$image."' data-lightbox='afbeelding'><img src='".$image."' class='thumbnail'></img></a>"; } return $images; } } and this is my gallery: <div class="gallery"> <center> <a href="index.php">Back:</a> <style> body { margin:0; padding:0; background:#efefef; font-family: "Helvetica Neue", helvetica, arial, sans-serif; color: black; text-align:center; /* used to center div in IE */ } </style> <?php $gallery = new Gallery(); echo $gallery -> renderImages("../images/"); $connection = new DatabaseConnection(); $render = new RenderData(); $page = 1; if(isset($_GET['page'])) { $check = new CheckData(); if($check->PageCheck($_GET['page'])) { $page = $_GET['page']; } } ?> <table> <div id="Intro"> <tr> <td>Hieronder kan je uploaden.</td> </tr> </div> <tr> <td>Max. 500000000Bytes</td> </tr> <tr> <form action="pages/upload_file.php" method="post" enctype="multipart/form-data"> <td><label for="file">Filename:</label></td> </tr> <tr> <td><input type="file" name="file" id="file"></td> </tr> <tr> <td><input type="submit" name="submit" value="Submit"></td> </tr> <tr> <td><input type="submit" name="delete" value="Delete"></td> </tr> </form> </table> How do I make a CRUD management on this? I want to select the photo and then delete it from my computer. I hope you guys can help me out...

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  • HTML 5: how to make stackable images?

    - by Bobafett
    Is it possible to load up 10 images (same dimension), stack them on top of one another only showing 1 image at a time and then by holding down the left mouse button and dragging the mouse up you scroll in one direction and moving the mouse down scrolls in the opposite direction?' if so how can this be done? canvas element would be the begining, no?

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  • Strange attribute in DIV tag

    - by user433500
    I am seeing some attribute I have never seen before in a div tag. I haven't touch html for a while but googling the attribute didn't return much useful info. <div dataquery="#item_1306" comp="box.components.Flashplayer" id="box_Flashplayer_2" propertyquery="#box_Flashplaye_2" class="box_Flashplaye_style2"... My question is, do you know what are these "dataquery" "comp" and "propertyquery" attributes? Thanks alot folks.

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  • jQuery Mobile page overrides desktop HTML div layout

    - by batjko
    I'd like to use jQuery mobile on my desktop page. I'm probably thinking of this wrongly, but I tried simply inserting a page element into an existing standard div, like this: <body> <div id="left_sidebar"> [...] </div> <div id="mylist" data-role="page"> <div data-role="listview"> [list items bla bla] </div> </div> <div id="right_sidebar"> [...] </div> <div id="site_footer"> (c) bla blub </div> </body> ...hoping that only the middle part displays the "mobile" page elements. However, that page div seems to override the entire site and turns the whole body into a mobile page (albeit displaying my listview item nicely... across the entire screen). Any idea what to do? Advice is much appreciated.

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  • file upload using progress element in HTML 5

    - by UNNI
    I am using progress element while displaying the progress of a file upload in javascript. But the problem that I am facing is it is not completely loading huge file.when I checked evet.total attribute it gives the total size of the file in bytes.But when it loads physically event.loaded attribute loads only 70 to 75 %.So I want to know is there any pre-requisite when use progress event? Has anybody faced this kind of issue before?.Thanks in advance.

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  • Designing entire webpages as SVG files

    - by user1311390
    Disclaimer I realize that given the absurdity of the title, this sounds like a troll. However, it's a genuine question. My background involves OpenGL / x86 assembly. I've recently started learning web programming. I really like SVG + CSS, and was wondering -- why do people not design entire webpages in SVG? Context SVG provides beautiful primitive: quadratic + cubic bezier curves; lines + filling -- all as vector graphics SVG provides text SVG provides affine transformations Questions Are there examples of people designing entire websites as a giant SVG file? If not, what the limitations? Are there performance hits when using SVG primitives as opposed to divs/tables?

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  • Resize a DIV when its text changes

    - by Antonios
    I wanted to build a custom html button without using any solution like bootstrap etc. but from scratch. I decided to use a div to build my button with very good results. However, when the text changes its length that does not mean the div will change its width as well. Should I approach this using javascript or is there a CSS solution I am missing. Apologies for missing code: div { position: relative; width: 121px; height: 30px; } I need a minimum width and not a dynamic this is why I used a fixed one. In case there is not a CSS alternative then I will use a javascript approach.

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  • Bind event to shape on canvas

    - by Ben Shelock
    How can I bind an event to a shape drawn on a canvas? I presumed this would work but I get an error. <html> <head> <script type="application/javascript"> function draw() { var canvas = document.getElementById("canvas"); var ctx = canvas.getContext("2d"); ctx.fillStyle = "rgb(200,0,0)"; var rec = ctx.fillRect (0, 0, 55, 50); rec.onclick = function(){ alert('something'); } } </script> </head> <body onLoad="draw()"> <canvas id="canvas" width="300" height="300"></canvas> </body> </html>

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  • Document conversion and viewing, what are the cutting edge solutions?

    - by DigitalLawyer
    Goal: building a web application where a user can: Upload a document (doc, docx, pdf, additional office formats a +) View that document in a browser, preferably in html Download the document (in doc, pdf, additional open formats a +) Current solution: Ruby on Rails Application on Rackspace Users can upload doc and pdf files (AWS) Files can be downloaded in the format in which they were uploaded Thumbnail generation ([doc, pdf] - pdf - png) is done through AbiWord. Certain doc files do not convert well. Documents can be viewed in embedded Google docs viewer (https://docs.google.com/viewer). Certain doc files cannot be displayed. Little flexibility. Potential improvements: Document viewing in pdf through pdf.js Viewing in html (+ annotation) through Crocodoc I'd be glad to hear other users' experiences, and will add good recommendations to this list.

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