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  • "Zooming" elements on a page while keeping the centre of enlargement in the centre of the window

    - by Acorn
    I'm trying to work out how to enlarge all elements on a page, but keep the centre of enlargement in the centre of the window. Example Page (up and down arrows to resize the image, you can also drag the image around) On this page, once the image reaches the top or the left side of the window the centre of enlargement changes. It also changes when you move the image. (exactly what you would expect) I'm thinking I'd need to take a completely different approach to achieve what I want. But I'm not sure what that approach is.. Any ideas?

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  • how to use is()

    - by Ricky
    Hi guys, How to refactor the follow to put NOT is(":checked") syntax, instead put the codes being executed in the else block? if ($(this).is(":checked")) { // do nothing } else { // To do here } Thanks for all the help.

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  • Drawing straight lines in JavaScript

    - by Shawn31313
    I'm just trying to draw a line with JavaScript. I would like it to be like this: http://deepliquid.com/projects/blog/arrows2.html My version: http://jsfiddle.net/shawn31313/qsWML/5/show Doesn't work too well and I don't know how to get it too work. It must be an issue in my JavaScript. This my code: $(document).ready(function() { var dragStatus = 2, getPos, giveRandomID; $(document).mousedown(function(event) { dragStatus = 0; getPos = { top: event.clientY, left: event.clientX }; giveRandomID = Math.floor(Math.random() * 99999); }); $(document).mousemove(function() { var line = $('#line' + giveRandomID); if (dragStatus == 0) { $('body').append("<div id='line" + giveRandomID + "' style='position:absolute;top:" + getPos.top + "px;left:" + getPos.left + "px;background:black;width:2px;height:5px'></div>"); dragStatus = 1; } if (dragStatus == 1) { if (event.clientX > getPos.left) { line.css({ left: getPos.left, width: event.clientX - getPos.left }); } else { line.css({ left: event.clientX, width: getPos.left - event.clientX }); } if (event.clientY > getPos.top) { line.css({ top: getPos.top - Math.abs((event.clientY - getPos.top) * 2), '-webkit-transform': 'rotate(' + (event.clientY - getPos.top) + 'deg)' }); } else { line.css({ top: getPos.top + Math.abs((getPos.top - event.clientY) * 2), '-webkit-transform': 'rotate(' + (getPos.top - event.clientY) + 'deg)' }); } //for DEG "-" Top-Math.abs(DEG*2) for Deg "+" Top+(DEG*2) } }); $(document).mouseup(function() { dragStatus = 2; }); });? Thanks for any help fixing this. Mainly an issue with the math, just don't know how I can fix this.

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  • tag cloud filter help please

    - by rod
    Hi All, I have a div that contains many spans and each of those spans contains a single href. Basically it's a tag cloud. What I'd like to do is have a textbox that filters the tag cloud on KeyUp event. Any ideas or is this possible? Thanks, rodchar

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  • Change Modul popup every 30 sec Javascript

    - by SoftwareDeveloper
    I have a div id called modalpage and have css. I need a javascript function which can dynamically shows popup for 20 mins and change in every 30 secs right now i have the following javascript function. Can anybody help me please <script language="javascript" type="text/javascript"> function revealModal(divID) { window.onscroll = function () { document.getElementById(divID).style.top = document.body.scrollTop; }; document.getElementById(divID).style.display = "block"; document.getElementById(divID).style.top = document.body.scrollTop; } which is called by a input id button. <input id="Button1" type="button" value="Click here" onclick="revealModal('modalPage')" /> Thanks

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  • change the value of the input element

    - by Lina
    Hi, the following code is costing me a lot of precious time, can anybody help me on this?? <div id="i"> <input id="Text1" type="text" value="hello" onClick="hello();"/> </div> <script> function hello() { var x = $("#i").html(); var y = $(x).val(); alert(y); } </script> in the case above the word "hello" is alerted each and every time, what if i want to alert the user input??? i.e. how do i change the "value" attribute of the input field???? thanks a trillion

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  • Problem with adding integers in an array

    - by rshivers
    Hello again, I'm trying to loop through my totals in order to get a grand total for my web app. So far the code I am working with is the following: function calcAllFields() { var name = parseFloat($('div [name = total[]]').text()); var totArray = $.makeArray(name); var total = 0; for (var i = 0; i < totArray.length; i++) { total += totArray[i]; } $("#target1").text(total); } Instead of adding integers, something is being read as a string. Say I want to add 200 + 50, instead of 250 I get 20050. Could anyone please point out what I'm doing wrong? Thanks!

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  • jqeury select list item entering problem

    - by mazhar
    $().ready(function() { $('#remove').click(function() { return !$('#FeatureLists option:selected').remove(); }); $("#add").click(function() { var vals = $("#txtaddfeature").val(); if(vals !='') $("#FeatureLists").prepend("" + vals + ""); $("#txtaddfeature").val()="" }); }); the thing is that if i enter Add it will go into the option without any problem, but if i enter Manage People only Manage will go as there is a space gap between Manage and People . how will i solve this bug?

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  • How to search with parameters in MVC?

    - by SnowJim
    Hi, I need to be able to provide a page for the end user where thay can search in the following : Search work Category Price AdType Location and so on. Its important that the user can copy the url and then use it later(and get the same settings). Its also important to be able to save these settings on the user in the database. So far I have created a ModelView class that contains the parameters but I am not sure that this is the right way to go? Maby I should pass all inte the URL. If so, how do I accomplish this? Is there any samples I could look at? BestRegards

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  • jQuery Animation and Classes

    - by ehdv
    Assume you have a list item, <li id="foo"> which you want to fade from one color to another when moused over, and that you are using jQuery. This is fairly easy: $('li#foo').bind('mouseenter' , function(e) { $(this).animate({backgroundColor: '#F00'} , 300); }); However, what if you wanted to get the resulting color or other style rules from a class defined in CSS without also declaring them in JavaScript? It seems there's no way to learn style information from CSS rules without having an example of the rule already in the document, which would require you to animate the <li> to the target appearance, then in the animation-finished callback, set the class which leads to redundant style declarations and can foul up your CSS at "runtime". Sorry if this question's unclear: It doesn't occur in the context of any specific project, I'm just curious how you'd go about this. Also, I know CSS3 hypothetically includes support for such transitions but using CSS for dynamic behavior like this seems such an ugly hack.

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  • jQueryUI widget text plus icon

    - by cf_PhillipSenn
    I have: <div class="ui-widget"> <div class="ui-widget-header"> My Menu<span class="ui-icon ui-icon-circle-triangle-n"></span> </div> <ul class="ui-widget-content"> <li>Menu Item 1</li> <li>Menu Item 2</li> <li>Menu Item 3</li> </ul> </div> Right now, the ui-icon is appearing below "My Menu" Q: How can I get "My Menu" to appear on the same line as the UI widget?

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  • Opposite of .find()

    - by Ben
    Is there an opposite of .find()? Where $('.myclass').except('#myid'); Would grab all elements with .myclass except the element with #myid. I know I could do $('.myclass[id=myid]') in this example, but seems like it would be helpful in other cases. Thanks

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  • Isotope active class when using select menu

    - by Michael
    I am using Metafizzy's Isotope plugin and have it set up to filter using a select menu as seen here: http://jsfiddle.net/trewknowledge/jJZEN/ $(function() { var $container = $('#container'), $select = $('#filters select'); $container.isotope({ itemSelector: '.item' }); $select.change(function() { var filters = $(this).val(); ; $container.isotope({ filter: filters }); }); });? What I am trying to figure out is how I would add a highlight/active class to the selected elements when the filters variable is already being used.

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  • ajax form handling an array

    - by moata_u
    am trying to handle an array comes from php file after submitting the form data , the value of data after submitting the form is = ARRAY but i cant use this array in any way , any idea how can i handle this array !!!! Javascript : $('#file').live('change',function(){ $('#preview').html(''); $('#preview').html('<img src="loader.gif" />'); $('#data').ajaxForm(function(data){ $(data['toshow']).insertBefore('.pic_content').hide().fadeIn(1000); }).submit(); }); PHP : .... ....etc echo json_encode(array('toshow'=>somedata,'data'=>somedata)); data come from php file {"toshow":"\r\n\t\t\t\t\r\n\t\t<table class=\"out\">\r\n\t\t\t<tr ><td class=\"img\"><a title=\"2012-06-02 01-22-09\" rel=\"prettyPhoto\" href=\"img\/2012-06-02 01-22-09.284.jpg\"><img src=\"img\/thumb\/2012-06-02 01-22-09.284.jpg\"\/><\/a><\/td><\/tr>\r\n\t\t\t\r\n\t\t\t<td>\r\n\t\t\t\t<table cellSpacing=\"1\" cellPadding=\"0\">\r\n\t\t\t\t\t<tr><td class=\"data\"><span class=\"click\">2012-06-02 01-22-09<\/span><\/td><\/tr>\r\n\t\t\t\t\t<tr><td class=\"data\"><span class=\"click\">Download<\/span><\/td><\/tr>\r\n\t\t\t\t\t<tr><td class=\"data\"><a href=\"img\/2012-06-02 01-22-09.284.jpg\"><span class=\"click\">View<\/span><\/a><\/td><\/tr>\r\n\t\t\t\t<\/table>\r\n\t\t\t<\/td>\r\n\t\t\t<\/tr>\r\n\t\t<\/table>","span":"<span class='text'><img src='greencheck.png'\/>2012-06-02 01-22-09 Uploaded ,File Size =152Kb <\/span>"}

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  • Simplify my menu animation code

    - by zaius
    I've got a bunch of 'project' divs that I want to expand when they're clicked on. If there's already a project open, I want to hide it before I slide out the new one. I also want to stop clicks on an already open project from closing and then opening it again. Here's an example of what I mean (warning - wrote the code in the browser): $('.projects').click(function() { var clicked_project = $(this); if (clicked_project.is(':visible')) { clicked_project.height(10).slideUp(); return; } var visible_projects = $('.projects:visible'); if (visible_projects.size() > 0) { visible_projects.height(10).slideUp(function() { clicked_project.slideDown(); }); } else { clicked_project.slideDown(); } }); Really, my big issue is with the second part - it sucks that I have to use that if/else - I should just be able to make the callback run instantly if there aren't any visible_projects. I would think this would be a pretty common task, and I'm sure there's a simplification I'm missing. Any suggestions appreciated!

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  • How can I delete a row in the view only if the AJAX call & db deletion was successful?

    - by user1760663
    I have a table where each row has a button for deletion. Actually I delete the row everytime without checking if the ajax call was successfull. How can I achieve that, so that the row will only be deleted if the ajax call was ok. Here is my clickhandler on each row $("body").on('click', ".ui-icon-trash" ,function(){ var $closestTr = $(this).closest('tr'); // This will give the closest tr // If the class element is the child of tr deleteRowFromDB(oTable, closestTr); $closestTr.remove() ; // Will delete that }); And here my ajax call function deleteRowFromDB(oTable, sendallproperty){ var deleteEntryRoute = #{jsRoute @Application.deleteConfigurationEntry() /} console.log("route is: " + deleteEntryRoute.url) $.ajax({ url: deleteEntryRoute.url({id: sendallproperty}), type: deleteEntryRoute.method, data: 'id=' + sendallproperty });

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  • How to add a checkbox for each row in Rails 3.2 index page?

    - by user938363
    We would like to add a checkbox to each row on Rails index page to flag for the row. This checkbox is not part of the object (no checkbox boolean in database). When the index page shows, a user can check the box to trigger an event for the row in following process: #objects/checkbox_index.html.erb <table> <tr> <th>CheckBox</th> <th>Object Name</th> <th>Object ID</th> </tr> <%= @objects.each do |obj| %> <tr> <td><%= checkbox %></td> <td><%= obj.name %></td> <td><%= obj.id %></td> </tr> <% end %> </table> In controller, the process will be like this: @objects.each do |obj| some_event if obj.checked end There are a couple of questions we don't quite understand: 1. How to declare an array checkbox variable on the form and link it to each row of obj? We have been using `attr_accessor` to declare var for a form. 2. How to retrieve each row on checkbox_index form and pass them back to controller? We are using simple_form for new/edit. Can anyone point me towards any good examples of this sort of behavior, or suggest what we should be thinking about? Many Thanks.

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  • pass parameter from $.post() callback to outer variable

    - by Nazmin
    basically i want to hold a parameter that retrieve value from $.post() call like this: init = function(){ var lastpage = getLastPage(); } function getLastPage(){ $.post("getInfo.php",{ last: "yes" }, function(data){ setLast(data.last); },'json'); return function setLast(data){ return data; } } so when reach at last post (last page) i should check with lastpage variable that has a value returned from getLastPage() function. I'm pretty blur with javascript pointer and all. Please help guys. update (20/4/2010): I've done the other way around, like this: init = function(){ getLastPage(); if((page+1) == $("#lastpage").val()){ alert("this is last post"); }else{ page++; //get info and display to the page here } } function getLastPage(){ $.post("getInfo.php",{ last: "yes" }, function(data){ $("#lastpage").val(data.last); },'json'); } first run the function to temporarily store the value in hidden input tag (lastpage) and then grab the value again to check it whenever i click forward button. if you all have more appropriate way please tell me.

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  • jQuery: Load body of page into variable

    - by Nathan G.
    I'm using jQuery to load the result of a PHP script into a variable. The script is passed something that the user typed with a GET request. I want to take just what the script spit out into its <body> tag. Here's what I've tried: JS: function loader() { var typed = $('#i').val(); //get what user typed in $.get("script.php", {i: typed}, function(loaded) {dataloaded = loaded;}); alert($(dataloaded).find('body')) } But it just displays [Objec object]. How can I get a useful value that is just the contents of the body of a loaded page? I know the PHP works, I just need the JS. The script echos something like 1!!2 (two numbers separated by two exclamation points). Thanks!

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  • Merging $.get and $.ready

    - by cwolves
    Put simply I have an ajax call that sometimes completes before the page is loaded, so I tried wrapping the callback in $( fn ), but the callback doesn't fire if the page is loaded... Anyone have a good solution to this? $.get( '/foo.json', function( data ){ $( function(){ // won't get here if page ready beats the ajax call // process data $( '.someDiv' ).append( someData ); } ); } ); And yes, I know that if I flipped the order of those it would always work, but then my ajax calls would be needlessly deferred until the document is ready.

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  • How to get four following text inputs after each checkbox?

    - by Richard Knop
    I am traversing checkboxes like this: $('.day').each(function() { // here I need to get the following 4 text inputs in the HTML // and set some attributes on them }); After every checkbox there are four text input fields (there are also some div, span tags for CSS around them). So inside the loop above I need to get four text input fields that follow the checkbox in the HTML source so I can set some attributes on them. How would I go about that?

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