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  • I need some pointers on how to implement inertia

    - by gargantaun
    Ok, so I've created a little plugin that takes a bunch of elements and creates a sort of never ending list. I'll try to explain... I have a div, and it's got about 20 elements tags in it. When the user scrolls up, the top element moves out of view and is moved to the bottom of the list. And vice-versa so that when the user scrolls down, the bottom element is moved to the top of the list. This is specifically for Mobile Safari (iPad, iPhone) web content and you can see the work in progress here... http://appliedworks.co.uk/files/times/SVGTests/drumView/drum.html You'll need an iPad or iPhone top see the scrolling in action. You can see the plugin code here... http://appliedworks.co.uk/files/times/SVGTests/drumView/drumView-0.1b.js What I would like to do is implement inertia so the scrolling slows to a halt in response to how fast or slow the user is scrolling when their finger leaves the screen. Just like the inertia commonly found in the iPhone / iPad UI. The problem is, every time an element moves to the top or the bottom of the list, the scollTop value for the parent div is adjusted to make it look like all the elements are staying in the same place. Which means the scrollTop value is never more than the top elements total height. So there's no value I can think of that I can keep on manipulating to give the illusion of inertia. I'm stumped. Does anyone have any suggestions?

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  • python interactive web data/forms/interface communicating with remote server

    - by decipher
    What's an efficient method (preferably simple as well) for communicating with a remote server and allowing the user to 'interact' with it (IE submit commands, user interface) via the web browser (IE a text box to input commands, and an text area for output, or various command-less abstracted interfaces)? I have the 'standalone' python code finished for communicating and working(terminal/console based right now). My primary concern is with re-factoring the code to suite the web, which involves establishing a connection (python sockets), and maintaining the connection while the user is logged on. some further details: currently using django framework for the basic back end/templates.

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  • Chrome Extension contenteditable get and set caret position

    - by jwize
    I am creating an extension where I need to insert a link into the gmail window. I am able to create a simple extension button in the top of the window and execute code that does replaces all the links. Now, I want to do add links in the contenteditable section as I type. It seems like there should be a simple way to replace text with a link in the document object model. If this is not true I need to do three things. Insert text from the current caret position Capture the caret position. Set the caret position by its offset. I have tried using window.getSelection within the gmail context(that is a body element that is set to contenteditable and embedded inside an iframe in the gmail tab) to get the current range and position. The selection is always empty and contains no ranges regardless of whether text is selected or not.

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  • How to select the first property with unknown name from JSON and how to select first item from array

    - by Oscar Godson
    I actually have two questions, both are probably simple, but for some odd reason I cant figure it out... I've worked with JSON 100s of times before too! but here is the JSON in question: {"69256":{"streaminfo":{"stream_ID":"1025","sourceowner_ID":"2","sourceowner_avatar":"http:\/\/content.nozzlmedia.com\/images\/sourceowner_avatar2.jpg","sourceownertype_ID":"1","stream_name":"Twitter","streamtype":"Social media","appsarray":[]},"item":{"headline":"Charboy","main_image":"http:\/\/content.nozzlmedia.com\/images\/author_avatar173212.jpg","summary":"ate a tomato and avocado for dinner...","nozzl_captured":"2010-05-12 23:02:12","geoarray":[{"state":"OR","county":"Multnomah","city":"Portland","neighborhood":"Downtown","zip":"97205","street":"462 SW 11th Ave","latitude":"45.5219","longitude":"-122.682"}],"full_content":"ate a tomato and avocado for dinner tonight. such tasty foods. just enjoyable.","body_text":"ate a tomato and avocado for dinner tonight. such tasty foods. just enjoyable.","author_name":"Charboy","author_avatar":"http:\/\/content.nozzlmedia.com\/images\/author_avatar173212.jpg","fulltext_url":"http:\/\/twitter.com\/charboy\/statuses\/13889868936","leftovers":{"twitter_id":"tag:search.twitter.com,2005:13889868936","date":"2010-05-13T02:59:59Z","location":"iPhone: 45.521866,-122.682262"},"wordarray":{"0":"ate","1":"tomato","2":"avocado","3":"dinner","4":"tonight","5":"tasty","6":"foods","7":"just","8":"enjoyable","9":"Charboy","11":"Twitter","13":"state:OR","14":"county:Multnomah, OR","15":"city:Portland, OR","16":"neighborhood:Downtown","17":"zip:97205"}}}} Question 1: How do I loop through each item (69256) when the number is random? e.g. item 1 is 123, item2 is 646? Like, for example, a normal JSON feed would have something like: {'item':{'blah':'lorem'},'item':{'blah':'ipsum'}} the JS would be like console.log(item.blah) to return lorem then ipsum in a loop How do I do it when i dont know the first item of the object? Question 2: How do I select items from the geoarray object? I tried: json.test.item.geoarray.latitude and json.test.item.geoarray['latitude']

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  • Google Chart Number formatting

    - by MizAkita
    I need to format my pie and column charts to show the $ and comma in currency format ($###,###) when you hover over the charts. Right now, it is displaying the number and percentage but the number as #####.## here is my code. Any help would be appreciated. // Load the Visualization API and the piechart package. google.load('visualization', '1.0', {'packages':['corechart']}); // Set a callback to run when the Google Visualization API is loaded. google.setOnLoadCallback(drawChart); var formatter = new google.visualization.NumberFormat({ prefix: '$' }); formatter.format(data, 1); var options = { pieSliceText: 'value' }; // Callback that creates and populates a data table, // instantiates the pie chart, passes in the data and // draws it. function drawChart() { // REVENUE CHART - Create the data table. var data4 = new google.visualization.DataTable(); data4.addColumn('string', 'Status'); data4.addColumn('number', 'In Thousands'); data4.addRows([ ['Net tution & Fees', 213.818], ['Auxiliaries', 30.577], ['Government grants/contracts', 39.436], ['Private grants/gifts', 39.436], ['Investments', 10.083], ['Clinics', 14.353], ['Other', 5.337] ]); // EXPENSES CHART - Create the data table. var data5 = new google.visualization.DataTable(); data5.addColumn('string', 'Status'); data5.addColumn('number', 'Amount'); data5.addRows([ ['Instruction', 133.868], ['Sponsored Progams', 34.940], ['Auxiliaries', 30.064], ['Academic Support', 25.529], ['Depreciation & amortization', 18.548], ['Student Services', 22.626], ['Plant operations & maintenance', 18.105], ['Fundraising', 13.258], ['Geneal Administration', 11.628], ['Interest', 6.846], ['Student Aid', 1.886], ]); // ENDOWMENT CHART - Create the data table. var data6 = new google.visualization.DataTable(); data6.addColumn('string', 'Status'); data6.addColumn('number', 'In Millions'); data6.addRows([ ['2010', 178.7], ['2011', 211.693], ['2012', 199.3] ]); // Set REVENUE chart options var options4 = { is3D: true, fontName: 'Arial', colors:['#AFD8F8', '#F6BD0F', '#8BBA00', '#FF8E46', '#008E8E', '#CCCCCC', '#D64646', '#8E468E'], 'title':'', 'width':550, 'height':250}; // Set EXPENSES chart options var options5 = { is3D: true, fontName: 'Arial', colors:['#AFD8F8', '#F6BD0F', '#8BBA00', '#FF8E46', '#008E8E', '#CCCCCC', '#D64646', '#8E468E'], 'title':'', 'width':550, 'height':250}; // Set ENDOWMENT chart options var options6 = { is3D: true, fontName: 'Arial', colors:['#AFD8F8', '#F6BD0F', '#8BBA00', '#FF8E46', '#008E8E', '#CCCCCC', '#D64646', '#8E468E'], 'title':'', 'width':450, 'height':250}; // Instantiate and draw our chart, passing in some options. var chart4 = new google.visualization.PieChart(document.getElementById('chart_div4')); chart4.draw(data4, options4); var chart5 = new google.visualization.PieChart(document.getElementById('chart_div5')); chart5.draw(data5, options5); var chart6 = new google.visualization.ColumnChart(document.getElementById('chart_div6')); chart6.draw(data6, options6);}

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  • Checkbox show error.

    - by Kyle Sevenoaks
    Hi, I need to make this show an error if the user tries to leave the page without checking this tickbox. It has no other use other than visual, is there a way to implement such a thing? <span> <input value="1" type="checkbox" name="salgsvilkar" ID="checkbox2" style="float:left;" onclick="document.getElementById('scrollwrap').style.cssText=' border-color:#85c222; background-color:#E5F7C7;';" /> <label for="checkbox2" class="akslabel"> Salgs og leveringsvilkår er lest og akseptert </label> </span> CSS is just for styling. Thanks.

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  • JQUERY show/hide fields depening on select value

    - by sico87
    Hello, I am trying to show and hide a few form fields dependent on the value of one of my select fields, I am looking to use arrays to to hold what should be show and what should not be show for each select value, to save me from a massive switch statement, but cannot figure out to do it. I am using PHP and Jquery. Any help would be great.

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  • Cannot set property X of undefined - programatically created element

    - by Dave
    I am working on a class to create a fairly complex custom element. I want to be able to define element attributes (mainly CSS) as I am creating the elements. I came up with the below function to quickly set attrs for me given an input array: // Sample array structure of apply_settings //var _button_div = { // syle : { // position: 'absolute', // padding : '2px', // right : 0, // top : 0 // } //}; function __apply_settings(__el,apply_settings){ try{ for(settingKey in apply_settings){ __setting = apply_settings[settingKey]; if(typeof(__setting)=='string'){ __el[settingKey] = __setting; }else{ for(i in __setting){ __el[settingKey][i] = apply_settings[settingKey][i]; } } } }catch(ex){ alert(ex + " " + __el); } } The function works fine except here: function __draw_top(){ var containerDiv = document.createElement('div'); var buttonDiv = document.createElement('div'); __apply_settings(containerDiv,this.settings.top_bar); if(global_settings.show_x) buttonDiv.appendChild(__create_img(global_settings.images.close)); containerDiv.appendChild(buttonDiv); __apply_settings(buttonDiv,this.settings.button_div); return containerDiv; } The specific section that is failing is __apply_settings(buttonDiv,this.settings.button_div); with the error "Cannot set property 'position' of undefined". So naturally, I am assuming that buttonDiv is undefined.. I put alert(ex + " " + __el); in __apply_settings() to verify what I was working with. Surprisingly enough, the element is a div. Is there any reason why this function would be working for containerDiv and not buttonDiv? Any help would be greatly appreciated :) {EDIT} http://jsfiddle.net/Us8Zw/2/

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  • How to shrink the ASPX page

    - by salvationishere
    I am developing a C#/ASP.NET web application in VS 2008. Currently this page is too tall. The buttons appear on top and then there is a large gap between these buttons and the resultLabel text. The following code is from my ASPX file. I have tried switching to the Design tab of this file and manually moving this label, but there is still a large gap. I'm sure this is simple. How do I correct this? Text="Now select from the dropdownlists which table columns from my database you want to map these fields to"     <table align="center"><tr> <td style="text-align: center;width: 300px;"> <asp:Label ID="resultLabel" runat="server" style="position:absolute; text-align:center; top:148px; left: 155px;" Visible="False"></asp:Label> </td></tr></table> <p>

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  • Ember nested route. Load more models

    - by user3568719
    JsBin http://jsbin.com/EveQOke/153/ I know how to load more then one model to a route, using Ember.RSVP.hash. (see Jsbin Children menu). I use dynamic part to access one elem from a collection children/1. But i cant load more models to a nested resource. In my example i want to populate all the toys for a select, not just list the toys of the child. I have tried to access the model of the route children App.ChildRoute = Ember.Route.extend({ model: function(param){ return Ember.RSVP.hash({ allToys: this.modelFor("children"), child:this.store.find('child', param.child_id) }); } }); and use its model's toy property (since there have already loaded all of the toys) child.hbs <h4>All avaiable toys</h4> <table> {{#each toy in model.allToys.toys}} <tr> <td>{{toy.name}}</td> </tr> {{/each}} </table>

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  • jQuery sortColumns plugin: How to sort correctly with rowspan

    - by Thang Pham
    Following this post jQuery table sort (github link: https://github.com/padolsey/jQuery-Plugins/blob/master/sortElements/jquery.sortElements.js), I am successfully sort columns, however it does not work in the case of rowspan: For example, case like this Grape 3,096,671M 1,642,721M Apple 2,602,750M 3,122,020M When I click on the second column, it try to sort Apple 2,602,750M 1,642,721M Grape 3,096,671M 3,122,020M which as you can see is not correct, please any jQuery guru help me fix this problem. Here is my code var inverse = false; function sortColumn(index){ index = index + 1; var table = jQuery('#resultsTable'); table.find('td').filter(function(){ return jQuery(this).index() == index; }).sortElements(function(a, b){ a = convertToNum($(a).text()); b = convertToNum($(b).text()); return ( isNaN(a) || isNaN(b) ? a > b : +a > +b ) ? inverse ? -1 : 1 : inverse ? 1 : -1; },function(){ return this.parentNode; }); inverse = !inverse; } function convertToNum(str){ if(isNaN(str)){ var holder = ""; for(i=0; i<str.length; i++){ if(!isNaN(str.charAt(i))){ holder += str.charAt(i); } } return holder; }else{ return str; } } Question: 1.How do I sort this with rowspan. THE NUMBER OF ROWSPAN IS NOT ALWAYS THE SAME. The above example both Grape and Apple have rowspan of 2, but this is not always the case. 2.Can any explain this syntax: return ( isNaN(a) || isNaN(b) ? a > b : +a > +b ) ? inverse ? -1 : 1 : inverse ? 1 : -1; So I can see that if either a or b is not a number, then do string comparison otherwise do number comparison, but I dont understand the inverse ? -1 : 1 : inverse ? 1 : -1;

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  • jQuery photo carousel (that looks like a real carousel)?

    - by kastru
    I am on the lookout for a jQuery photo carousel that can display 3 images at a time, and circle through x amount of photos (and when reaching the last, starting with the first photo again). I made a quick mock-up of what i am looking fore - see it here. So there is 3 photos vissible, the middle one beeing the 'main' one and a bit bigger than the previous and next (left and right). Upon clicking the next/previous arrows the next or previous photo slides into the middle and thereby becomes the main photo. Any ideas to where i can find such a jQuery plugin/script?

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  • Node.js Creating and Deleting a File Recursively

    - by Matt
    I thought it would be a cool experiment to have a for loop and create a file hello.txt and then delete it with unlink. I figured that if fs.unlink is the delete file procedure in Node, then fs.link must be the create file. However, my code will only delete, and it will not create, not even once. Even if I separate the fs.link code into a separate file, it still will not create my file hello.txt. Below is my code: var fs = require('fs'), for(var i=1;i<=10;i++){ fs.unlink('./hello.txt', function (err) { if (err){ throw err; } else { console.log('successfully deleted file'); } fs.link('./hello.txt', function (err) { if (err){ throw err; } else { console.log('successfully created file'); } }); }); } http://nodejs.org/api/fs.html#fs_fs_link_srcpath_dstpath_callback Thank you!

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  • Ecmascript 5 Date.parse for ISO 8601 test cases

    - by 4esn0k
    What results is right for next test cases? //Chrome Opera Firefox IE 9 Safari console.log(Date.parse("2012-11-31T23:59:59.000Z"));//1354406399000 NaN NaN 1354406399000 NaN console.log(Date.parse("2012-12-31T23:59:59.000Z"));//1356998399000 1356998399000 1356998399000 1356998399000 1356998399000 console.log(Date.parse("2012-12-31T23:59:60.000Z"));//NaN NaN NaN NaN 1356998400000 console.log(Date.parse("2012-04-04T05:02:02.170Z"));//1333515722170 1333515722170 1333515722170 1333515722170 1333515722170 console.log(Date.parse("2012-04-04T24:00:00.000Z"));//NaN 1333584000000 1333584000000 1333584000000 1333584000000 console.log(Date.parse("2012-04-04T24:00:00.500Z"));//NaN NaN 1333584000500 1333584000500 NaN

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