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  • Greasemonkey script, that creates Kineticjs drag and drop canvas over every website

    - by Michael Moeller
    I'd like to put a drag and drop canvas over every website I visit in Firefox. My Greasemonkey script puts a drag and drop canvas under every page: kinetic.user.js: // ==UserScript== // @name kineticjs_example // @description Canvas Drag and Drop // @include * // @require http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js // @require http://d3lp1msu2r81bx.cloudfront.net/kjs/js/lib/kinetic-v4.7.2.min.js // ==/UserScript== var div = document.createElement( 'div' ); with( div ) { setAttribute( 'id', 'container' ); } // append at end document.getElementsByTagName( 'body' )[ 0 ].appendChild( div ); var stage = new Kinetic.Stage({ container: 'container', width: 1000, height: 1000 }); var layer = new Kinetic.Layer(); var rectX = stage.getWidth() / 2 - 50; var rectY = stage.getHeight() / 2 - 25; var box = new Kinetic.Rect({ x: rectX, y: rectY, width: 100, height: 50, fill: '#00D2FF', stroke: 'black', strokeWidth: 4, draggable: true }); // add cursor styling box.on('mouseover', function() { document.body.style.cursor = 'pointer'; }); box.on('mouseout', function() { document.body.style.cursor = 'default'; }); layer.add(box); stage.add(layer); How can I drag and drop this shape over the entire website?

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  • CSS Sprites : Mysterious Concept Explored ?

    - by Rachel
    I have 3 different images and now I want to create an sprite using css so that I am reducing HTTP Request. I am totally new to this concept and have not idea as to how to approach this. Can anyone suggest me what would be best bet for me ? Also I have seen there are some CSS Sprite generator engines where in you submit .zip folder containing your images and than they would combine it. I tried doing that but did not understood of what was happening and so any guidance regarding creating and using CSS sprites would be highly appreciated. Update: I have gone through the AList Part but it was not very clear to me. Can anyone explain the use case of CSS Sprites using an example ? Thanks.

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  • Arrow in nav menus in CSS/JS (e.g. playframework.org)

    - by manmal
    The navigation menu at the top of the www.playframework.org site features a small arrow pointing upward for the currently selected section (Home, Learn, Download,...). I tried to get behind the implementation they used, but I can't wrap my head around it - the resource does not show up in Chrome's Resources window, and an inspection of the elements did not show any signs of a background image, nor a JS interceptor (although I might have missed that). What in hellhound's name is going on there? :)

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  • Anyone knows from where to get that jQuery tags editor?

    - by Axel
    Hi, Someday i've downloaded a very nice jquery editor but i lost it and i only have a screenshot of it. You just type a tag and press return or space and it's will be inside a nice box, and you can delete it by only pressing the backspace key or the close icon. Please don't suggest me That because it's so poor and the tags are inserted outside the input box. Thanks

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  • jquery replaceWith implications

    - by Vlad Ioffe
    I am using replaceWith for input type=file to handle changes of the file the user wants to upload. I have this code: $('#add_cv_input').change(function() { // here is some code else { alert('put one of this: pdf doc docx'); $("#add_cv_input").replaceWith('<input id="add_cv_input" type="file"/>'); } }); now the problem is that this jquery changed event does not being called after the first time that the user had uploaded the wrong extension. I don't have a clue why this is happening. Everything works fine if at the first time the user uploads a valid extension and then he changes it to other valid extension.

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  • jQuery plugin to have Facebook styled search box with image thumbnails?

    - by Michael Mao
    Hello everyone: I will work on a search box with inspiration from Facebook where image thumbnails would be displayed besides the auto-suggested matches. This is the goal : link to sample image I wonder if there is any jQuery plugin that would just do this. I tried to search for a one but unable to find. If there is no plugin for this task, I'd like to know the basic plugins needed to implemented such an auto-suggest/image thumbnail display combination. Any suggestion and hint is welcomed. Thanks a lot!

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  • Is there a way to do this with basic JS DOM?

    - by Thomas
    I need to apply/remove to an input field according to a user's selection in a separate drop down form - but I can't figure out how to target the input's class. I need to add/remove the 'pageRequired' class from this input: <input type="text" title="Company Required" name="customfields-tf-2-tf" class="inputclass pageRequired textInput" id="customfields-tf-2-tf" /> When the user selects one of two options from a drop down field. For example: <select class="dropdown" name="customfields-s-1-s" id="customfields-s-1-s" > <option value="Owner"<?php if(in_array("Owner",$temp_values)) { ?> selected='selected'<?php } ?>> Owner</option> <option value="Broker"<?php if(in_array("Broker",$temp_values)) { ?> selected='selected'<?php } ?>> Broker</option> </select> If the user selects broker than I want to add the pageRequired class to the first input field and remove it if the user selects Owner.

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  • How to set result of function as global variable.

    - by George
    I'm sure this is really simple and I'm drawing a giant blank, but how do you set the result of a function as a global variable? Example, I want to set the first "color" in array "colors" as global variable "color" (I know the example doesn't make much practical sense, but it's just to illustrate my question): var color = ""; function selectColor () { var colors = ["blue","red","green","yellow"]; var color = colors[0]; return color; } window.onload = function () { selectColor (); alert(color); }

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  • Local Variables take 7x longer to access than global variables?

    - by ItzWarty
    I was trying to benchmark the gain/loss of "caching" math.floor, in hopes that I could make calls faster. Here was the test: <html> <head> <script> window.onload = function() { var startTime = new Date().getTime(); var k = 0; for(var i = 0; i < 1000000; i++) k += Math.floor(9.99); var mathFloorTime = new Date().getTime() - startTime; startTime = new Date().getTime(); window.mfloor = Math.floor; k = 0; for(var i = 0; i < 1000000; i++) k += window.mfloor(9.99); var globalFloorTime = new Date().getTime() - startTime; startTime = new Date().getTime(); var mfloor = Math.floor; k = 0; for(var i = 0; i < 1000000; i++) k += mfloor(9.99); var localFloorTime = new Date().getTime() - startTime; document.getElementById("MathResult").innerHTML = mathFloorTime; document.getElementById("globalResult").innerHTML = globalFloorTime; document.getElementById("localResult").innerHTML = localFloorTime; }; </script> </head> <body> Math.floor: <span id="MathResult"></span>ms <br /> var mathfloor: <span id="globalResult"></span>ms <br /> window.mathfloor: <span id="localResult"></span>ms <br /> </body> </html> My results from the test: [Chromium 5.0.308.0]: Math.floor: 49ms var mathfloor: 271ms window.mathfloor: 40ms [IE 8.0.6001.18702] Math.floor: 703ms var mathfloor: 9890ms [LOL!] window.mathfloor: 375ms [Firefox [Minefield] 3.7a4pre] Math.floor: 42ms var mathfloor: 2257ms window.mathfloor: 60ms [Safari 4.0.4[531.21.10] ] Math.floor: 92ms var mathfloor: 289ms window.mathfloor: 90ms [Opera 10.10 build 1893] Math.floor: 500ms var mathfloor: 843ms window.mathfloor: 360ms [Konqueror 4.3.90 [KDE 4.3.90 [KDE 4.4 RC1]]] Math.floor: 453ms var mathfloor: 563ms window.mathfloor: 312ms The variance is random, of course, but for the most part In all cases [this shows time taken]: [takes longer] mathfloor Math.floor window.mathfloor [is faster] Why is this? In my projects i've been using var mfloor = Math.floor, and according to my not-so-amazing benchmarks, my efforts to "optimize" actually slowed down the script by ALOT... Is there any other way to make my code more "efficient"...? I'm at the stage where i basically need to optimize, so no, this isn't "premature optimization"...

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  • Can I write this JQuery statement cleaner?

    - by Polaris878
    Hello, So I have the following: var box = $(".MyCheckBox"); if (box[0].checked) { // Do something } else { // Do something else } Is there a better way of doing this using filters or something? I know I can go: $(".MyCheckBox") .filter(function(index) { return this.checked; }) .each(function() { // do something }); But I need to do something in the else statement... easier way of doing this? Thanks!

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  • document.getElementsByName returns elements more than expected

    - by Homer
    I have a RadioButtonList <asp:radiobuttonlist runat="server" id="rblList"> <asp:listitem>s1</asp:listitem> <asp:listitem>s2</asp:listitem> <asp:listitem>s3</asp:listitem> <asp:listitem>s4</asp:listitem> </asp:radiobuttonlist> In my client code I'm grabbing the array of radio buttons like this var elements = document.getElementsByName("rblList"); Why am I getting 5 items instead of 4? It makes elements like a 1 based array.

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  • scrollTop in defferent browers.

    - by zjm1126
    shortcut.add("up",function() { alert( document.body.scrollTop) if (document.documentElement&& typeof document.documentElement.scrollTop=='number'){ document.documentElement.scrollTop-=100 } else if (document.body) { document.body.scrollTop-=100 } }) shortcut.add("down",function() { if (document.documentElement&&typeof document.documentElement.scrollTop=='number' ){ document.documentElement.scrollTop+=100 } else if (document.body) { document.body.scrollTop+=100 } }) it can running in firefox,but not in chrome and safari thanks

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  • Detectig by how much user has scrolled

    - by Sean
    I have an image pop-up ability on my website (see this screenshot), in order to show users the full resolution picture when they click on a smaller version on the page. This is the current CSS that positions it: div#enlargedImgWrapper { position: absolute; top: 30px; left: 55px; z-index: 999; } The problem now is that if I click on an image further down the page, the window still appears in the top left corner of the page, where I can't see it until I scroll back up. I need it to appear relative to the window, whatever its current position relative to the document is. Note: I don't want to use position: fixed; as some images might be taller than the screen, so I want users to be able to scroll along the image as well. My idea was to use JS to change the top value: var scrollValue = ???; document.getElementById('enlargedImgWrapper').style.top = scrollValue+30 + 'px'; How can I detect by how much the user has scrolled down the page (var scrollValue)? Or is there a 'better' way to do this? Thanks!

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  • GreaseMonkey + Ajax + Remember page?

    - by acidzombie24
    I load jquery into my greasemonkey script and when the user clicks the start button the script makes a bunch of ajax calls. I then empty body and append data. When i click on something and hit back instead of getting the page post script i lose all the data and need to run the ajax calls again (it can take seconds to run). How do i make it not lose the changes?

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  • Regular expression Not working properly n case of multiple trailing ]]]]

    - by ronan
    I have the requirement that in a textbox a user can jump to the next word enclosed in [] on a tab out for example Hi [this] is [an] example. Testing [this] So when my cursor is at Hi and I do a tab out , the characters enclosed in the [this] are highlighted and when I again do a tabl out th next characters enclosed in following [an] are highlighted. This works fine Now the requirement is whatever the text including the special chars between [] needs to be highlighted case 1: when I have trailing ]]], it only highlights leading [[[ and ignores ]]]] e.g case 2: In case of multiple trailing ] e.e [this]]]] is [test], ideally one a single tabl out from this , it should go to next text enclosed in [] but a user has to tab out 4 times one tab per training ] to go to next [text] strong text The code is $(document).ready(function() { $('textarea').highlightTextarea({ color : '#0475D1', words : [ "/(\[.*?\])/g" ], textColor : '#000000' }); $('textarea').live('keydown', function(e) { var keyCode = e.keyCode || e.which; if (keyCode == 9) { var currentIndex = getCaret($(this).get(0)) selectText($(this), currentIndex); return false; } }); }); function selectText(element, currentIndex) { var rSearchTerm = new RegExp(/(\[.*?\])/); var ind = element.val().substr(currentIndex).search(rSearchTerm) currentIndex = (ind == -1 ? 0 : currentIndex); ind = (ind == -1 ? element.val().search(rSearchTerm) : ind); currentIndex = (ind == -1 ? 0 : currentIndex); var lasInd = (element.val().substr(currentIndex).search(rSearchTerm) == -1 ? 0 : element.val().substr(currentIndex).indexOf(']')); var input = element.get(0); if (input.setSelectionRange) { input.focus(); input.setSelectionRange(ind + currentIndex, lasInd + 1 + currentIndex); } else if (input.createTextRange) { var range = input.createTextRange(); range.collapse(true); range.moveEnd('character', lasInd + 1 + currentIndex); range.moveStart('character', ind + currentIndex); range.select(); } } function getCaret(el) { if (el.selectionEnd) { return el.selectionEnd; } else if (document.selection) { el.focus(); var r = document.selection.createRange(); if (r == null) { return 0; } var re = el.createTextRange(), rc = re.duplicate(); re.moveToBookmark(r.getBookmark()); rc.setEndPoint('EndToStart', re); return rc.text.length; } return 0; } Please let me know to handle two above cases

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  • Google Maps API v3 show local businesses/points of interest

    - by julio
    I know at some point I'd come across a Google service built into their API that would provide local information as markers on the viewport (schools, hospitals, etc.)-- I believe this was a simple control that could be added just like the normal map controls, to allow users to turn it on or off with a checkbox or button. I can't seem to find this feature documented anywhere in the v3.0 API docs. Can anyone provide some information on this, or let me know if it was deprecated? Thanks

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  • How to update content of one ArrayController from the selected value of another ArrayController in Ember.js

    - by CodeHugger
    I have the following problem in ember.js. A child controller depends on a selected value in a parent controller in order to determine its content. In the database a child has a parent_id reference. App.parentsController = Em.ArrayController.create({ content: [], selected: null }); App.sonsController = Em.ArrayController.create({ // the value of content depends on the id of // the selected item in the parentsController content: [], selected: null }); App.daughtersController = Em.ArrayController.create({ // the value of content depends on the id of // the selected item in the parentsController content: [], selected: null }); I would prefer to solve this without the parentsController having to know anything about the other controllers. This should be possible with observers, bindings or even through calculations but I have no clue where to start. Any help would be well appreciated.

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  • Protecting routes with authentication in an AngularJS app

    - by Chris White
    Some of my AngularJS routes are to pages which require the user to be authenticated with my API. In those cases, I'd like the user to be redirected to the login page so they can authenticate. For example, if a guest accesses /account/settings, they should be redirected to the login form. From brainstorming I came up with listening for the $locationChangeStart event and if it's a location which requires authentication then redirect the user to the login form. I can do that simple enough in my applications run() event: .run(['$rootScope', function($rootScope) { $rootScope.$on('$locationChangeStart', function(event) { // Decide if this location required an authenticated user and redirect appropriately }); }]); The next step is keeping a list of all my applications routes that require authentication, so I tried adding them as parameters to my $routeProvider: $routeProvider.when('/account/settings', {templateUrl: '/partials/account/settings.html', controller: 'AccountSettingCtrl', requiresAuthentication: true}); But I don't see any way to get the requiresAuthentication key from within the $locationChangeStart event. Am I overthinking this? I tried to find a way for Angular to do this natively but couldn't find anything.

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  • Disabling checkboxes based on selection of another checkbox in jquery

    - by Prady
    Hi, I want to disable a set of checkbox based on selection of one textbox and enable the disabled ones if the checkbox is unchecked. In the code below. If someone checks the checkbox for project cost under change this parameter then checkbox for project cost under Generate simulated value for this param should be disabled and all the checkboxes under change this parameter should be disabled except for checked one. Similarly this should be done each parameter like Project cost,avg hours,Project completion date, hourly rate etc. One way i could think of was of on the click function disable each checkbox by the id. Is there a better way of doing it? <table> <tr> <td></td> <td></td> <td>Change this parameter</td> <td>Generate simulated value for this param</td> </tr> <tr> <td>Project cost</td> <td><input type ="text" id ="pc"/></td> <td><input class="change" type="checkbox" name="chkBox" id="chkBox"></input></td> <td><input class="sim" type="checkbox" name="chkBox1" id="chkBox1"></input></td> </tr> <tr> <td>Avg hours</td> <td><input type ="text" id ="avghrs"/></td> <td><input class="change" type="checkbox" name="chkBoxa" id="chkBoxa"></input></td> <td><input class="sim" type="checkbox" name="chkBox1a" id="chkBox1a"></input></td> </tr> <tr> <td>Project completion date</td> <td><input type ="text" id ="cd"/></td> <td><input class="change" type="checkbox" name="chkBoxb" id="chkBoxb"></input></td> <td><input class="sim" type="checkbox" name="chkBox1b" id="chkBox1b"></input></td> </tr> <tr> <td>Hourly rate</td> <td><input type ="text" id ="hr"/></td> <td><input class="change" type="checkbox" name="chkBoxc" id="chkBoxc"></input></td> <td><input class="sim" type="checkbox" name="chkBox1c" id="chkBox1c"></input></td> </tr> </table> Thanks Prady

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  • querySelectorAll is not finding dynamically added elements with custom attribute

    - by Exception
    I am creating two way binding between JS Object and UI in below fiddle, code is big to post Please check http://jsfiddle.net/bpH6Z/20/ I am using the code like below var elements = document.querySelectorAll("[" + data_attr + "] *[bd='" + prop_name + "']"); I have mentioned the problem line in big comments, can be identified easily. My problem is I am adding elements to binded dynamicaly using JS, when I change the value in UI, the same value is not reflected in other places. The problem is querySelectorAll is faling to find elements with same attribute. It is finding only first occurrence. Please look into the issue.

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  • Prevent Users from Performing an Action Twice

    - by TheOnly92
    We have some problems with users performing a specific action twice, we have a mechanism to ensure that users can't do it but somehow it still happens. Here is how our current mechanism works: Client side: The button will be disabled after 1 click. Server side: We have a key hash in the URL which will be checked against the key stored in SESSIONS, once it matches, the key is deleted. Database side: Once the action is performed, there is a field to be flagged indicating the user has completed the action. However, with all these measures, still there are users able to perform the action twice, are there any more safer methods?

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  • Help with google maps api, user allowed marker map

    - by Exilekiller
    Without telling everyone too much about my new idea for a website, Pretty much I need help, maybe someone can help write it up, with a site that has a simple map that allows any user to double click the map and make a marker. When the marker comes up I just want Title and Description available for edit(only once, so others cant change it). I have been trying to figure this out myself but computer science isnt my major so its killing me. Thanks for the help

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  • Unexpected token ILLEGAL with jQuery

    - by Bram Vanroy
    So, I have a website with an autoFontSize script (Got it from stackoverflow, but slightly edited it too loop over each div with that specific class) (function ($) { $.fn.textfill = function (options) { this.each(function () { var fontSize = options.maxFontPixels; var ourText = $('h2 a', this); var maxHeight = $(this).height(); var maxWidth = $(this).width(); var textHeight; var textWidth; do { ourText.css('font-size', fontSize); textHeight = ourText.height(); textWidth = ourText.width(); fontSize = fontSize - 1; } while ((textHeight > maxHeight || textWidth > maxWidth) && fontSize > 16); }); return this; }; })(jQuery); $(document).ready(function () { $('.fotonode.fotopagina').textfill({ maxFontPixels: 30 }); });? And a (simplified) HTML structure: <div class="fotonode fotopagina"> <h2><a href="#">Testing Title</a></h2> </div> For some reason this doesn't work (neither locally nor live) BUT it does work on JSfiddle: http://jsfiddle.net/Yb9yj/ I read somewhere that this can cause problems. I copied the code from jsfiddle to my file, so maybe I have (unintentionally) copied some white spaces that shouldn't be there or something. I don't know. But how can I solve this then?

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