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  • Jquery automatic loading gif and button disable on submit click

    - by JK
    Is it possible to automate the showing/hiding of a ajax loading gif, and the disabling/enabling of the submit button at the same time? (when the submit button is a styled not a input type=submit) Currently when submitting I do this: $("#save_button_id").click(function () { if ($('#save_button_id').hasClass('ui-state-disabled')) return false; Save(); }); function Save() { StartAjax($("#save_button_id")); $.ajax({ success: function (data) { EndAjax($("#save_button_id")); // etc... }, error: function (xhr, status, error) { EndAjax($("#save_button_id")); // etc ... } }); } function StartAjax(button) { DisableButtonClick(button); $("#ajaxLoad").show(); } function EndAjax(button) { EnableButtonClick(button); $("#ajaxLoad").hide(); } I've seen a few places talk about how to use .ajaxStart() to automatically show the loading gif, but is it possible to also find a reference to the button (a styled tag) that was clicked, and automatically disable/enable that as well? The point of this is to not have to manually type in Start/EndAjax every time, and to make sure the app is consistent everywhere.

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  • Performance problems when loading local JSON via <script> elements in IE8

    - by Jens Bannmann
    I have a web page with some JS scripts that needs to work locally, e.g. from hard disk or a CD-ROM. The scripts load JSON data from files by inserting <script> tags. This worked fine in IE6, but now in IE8 it takes an enormous amount of time: it went from "instantly" to 3-10 seconds. The main data file is 45KB large. How can I solve this? I would switch from <script> tags to another method of loading JSON (ideally involving the new native JSON parser), but it seems locally loaded content cannot access the XMLHttpRequest object. Any ideas?

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  • remove/restore elements, maintaining their events and element's children

    - by Emin
    I came to a situation where I need to edit the following in a way that, on some event (lets assume the 'click' event in this case) I need to remove (or unwrap?) the .container and the .header and have the .itemlist still visible/available on the page. And then, I need to restore .container and .header back again on some other event, while still maintain the event listeners on the a tags, and if possible, without removing the said items from the DOM. Is this possible? <ul class="container"> <li class="header"><a href="#">delete</a> | <a href="#">edit</a></li> <ul class="itemlist"> <li>some item</li> <li>some other item</li> </ul> </ul>

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  • jQuery drawing and modifying lines and positions

    - by Chris
    I want to allow people to select a feature region on an image using jQuery. This should work similarly to the Facebook tagger except once someone "tags" an area of the image an ellipse should appear with the ability for the user to rotate and scale it. How can I achieve this using jQuery?

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  • How do I make different texts to appear in after clicking x-times?

    - by Sebastian Lindén
    I want to show some text within a class for each click but keep the clicky-class. Shortly, if you click 2 times, you will get a div-text "You clicked two times", you will still be able to click a third time, then you will get "You clicked three times", until the fifth time when everything will hide. Is there any simpel way to do this? I tried with this but couldn't get it to work. var clicks = 0; $('.clicky').on('click', function() { clicks++; if(clicks >= 3) { $(this).add($('.background')).add($('.hello')); } else(clicks >= 5) { $(this).add($('.background')).hide(); } });? http://jsfiddle.net/sLAzY/ This is a working example of the hide function. Hope you understand what I mean Have a nice day!

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  • Why does my simple event handling example not work?

    - by njreed
    I am trying to make a simple event handler. (Note, I'm not trying to implement a full-blown publish/subscribe model; I'm just interested in why my example doesn't work as I think it should) var myObj = (function () { var private = "X"; function triggerEvent(eventName) { if (this[eventName]) { this[eventName](); } } // Setter / Getter function getProp() { return private; } function setProp(value) { private = value; triggerEvent("onPropChange"); } // Public API return { // Events "onPropChange": null, // Fires when prop value is changed // Methods "getProp": getProp, "setProp": setProp }; })(); // Now set event handler myObj.onPropChange = function () { alert("You changed the property!"); }; myObj.setProp("Z"); // --> Nothing happens. Wrong // Why doesn't my alert show? I set the onPropChange property of my object to a simpler handler function but it is not being fired. I have debugged this and it seems that in triggerEvent the variable this is referencing the global window object. I thought it should reference myObj (which is what I need). Can someone explain the error in my thinking and how I correct this? Help much appreciated. jsFiddle here

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  • Script says Undefined

    - by user1058887
    I have this script that would let the user input a text and it would get translated into something else. It works only when the word has only 1 letter. When there is more than 1 letter it says Undefined. Here is the script : function copyit(theField) { var tempval=eval("document."+theField) tempval.focus() tempval.select() therange=tempval.createTextRange() therange.execCommand("Copy") } function results() { var behavior="form"; var text=document.csrAlpha.csrresult2.value; var ff22=text.toLowerCase(); var Words=new Array ; Words["b"]="Dadada"; Words["bob"]="Robert"; Words["flower"]="Banana"; Words["brad"]="Chair"; var trans=""; var regExp=/[\!@#$%^&*(),=";:\/]/; var stringCheck=regExp.exec(ff22); if(!stringCheck) { if(ff22.length > 0) { for(var i=0;i < ff22.length;i++) { var thisChar=ff22.charAt(i); trans += Words[thisChar] + " "; } } else { trans +="Please write something."; } } else { trans +="You entered invalid characters. Remove them and try again."; } document.csrAlpha.csrresult.value=trans; } Please insert your text below:

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  • How to get object values and properties in jquery ?

    - by Rachel
    I am using jQuery selector to get the values of all CMS components on the page using $('div.cmscomponent') but how can I test this to see if am actually getting the list of compoents on the page. I use: var temp = $('div.cmscomponent'); alert(temp); and result that I get is [object OBJECT] and so how can I test this ? and how can I get values of the object and its properties.

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  • Regex, replace path to resource, modify resource name

    - by jerome
    Hi all, I'd like to use a JS regex to take a string such as the following: 'http://www.somedomain.com/some_directory/some_other_directory/some_image.jpg' And turn it into this: 'http://www.some_other_domain.com/another_directory/yet_another_directory/size1_some_image.jpg' Any hints? Additionally, any pointers for books or other resources that give a gentle introduction to mastering regexes in JS and other languages?

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  • Code Colorer Being Used

    - by Sarfraz
    Hello, I visited this site and i really liked the code colorer used by it (apart from that CSS3 article on speech bubbles). I went through the source code of that page but could not find which syntax highlighter is being used there. Does any one have an idea?

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  • Simple Counter issue

    - by TechyDude
    I want to make a very simple counter that increases the value when you click a button. When I click the add button the first time, the number doesn't increase, however I console log the value which increases the result everytime. Any ideas? The fiddle: http://jsfiddle.net/techydude/H63As/ $(function() { var //valueCount = $("counter").value(), counter = $("#counter"), addBtn = $("#add"), value = $("#counter").html(); addBtn.on("click", function() { counter.html(value ++); console.log(value); return }); });

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  • Best Practices & Considerations when writing HTML Emails

    - by Jonathan Sampson
    I've been developing websites for over a decade now, but quickly found that many of my habits in developing for the web are useless when developing for email clients. This has caused me an enormous amount of frustration, so I thought I would ask a question that would hopefully surface the best practices and necessary considerations for others like myself who may find themselves designing for gmail, outlook, etc. from time to time. Example: <style>...</style> vs inline CSS. In short: what transfers over from the web-world to the email-world, and what doesn't.

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  • Dojo: Setting a CheckBox label programmatically

    - by Mitchell Flaherty
    Let me preface by saying that I saw this other question on the subject of CheckBox labels that was asked and answered well over a year ago. I was confused by the answers and am hoping that someone can clarify or that there has been new dojo functionality introduced since then that allows me to do this without resorting to HTML. So without further ado, I would like to know how to programmatically create labels for check boxes. I have a check box like so: this.pubBoxId = new dijit.form.CheckBox({ label: "IdChannel", checked: false, channel: that.idChannel }, that.name + "_PBI"); As you can see I've tried to edit the "label" field, but the label never actually shows up on the page. I have multiple CheckBoxes that I am adding to a ContentPane and simply want a label to the left or right of the check box. Is there any way I can do this without having to write separate HTML? Also, making a separate ContentPane for each individual label would be a big pain because of how many CheckBoxes I plan to have. Thank you for reading, and let me know if further clarification is needed!

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  • Dual AJAX Requests at different times

    - by Nik
    Alright, I'm trying to make an AJAX Chat system that polls the chat database every 400ms. That part is working, the part of which isn't is the Active User List. When I try to combine the two requests, the first two requests are made, then the whole thing snowballs and the usually timed (12 second) Active User List request starts updating every 1ms and the first request NEVER happens again. Displayed is the entire AJAX code for both requests: var waittime=400;chatmsg=document.getElementById("chatmsg"); room = document.getElementById("roomid").value; chatmsg.focus() document.getElementById("chatwindow").innerHTML = "loading..."; document.getElementById("userwindow").innerHTML = "Loading User List..."; var xmlhttp = false; var xmlhttp2 = false; var xmlhttp3 = false; function ajax_read(url) { if(window.XMLHttpRequest){ xmlhttp=new XMLHttpRequest(); if(xmlhttp.overrideMimeType){ xmlhttp.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp.onreadystatechange = function() { if (xmlhttp.readyState==4) { document.getElementById("chatwindow").innerHTML = xmlhttp.responseText; setTimeout("ajax_read('methods.php?method=r&room=" + room +"')", waittime); } } xmlhttp.open('GET',url,true); xmlhttp.send(null); } function user_read(url) { if(window.XMLHttpRequest){ xmlhttp3=new XMLHttpRequest(); if(xmlhttp3.overrideMimeType){ xmlhttp3.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp3=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp3=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp3) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp3.onreadystatechange = function() { if (xmlhttp3.readyState==4) { document.getElementById("userwindow").innerHTML = xmlhttp3.responseText; setTimeout("ajax_read('methods.php?method=u&room=" + room +"')", 12000); } } xmlhttp3.open('GET',url,true); xmlhttp3.send(null); } function ajax_write(url){ if(window.XMLHttpRequest){ xmlhttp2=new XMLHttpRequest(); if(xmlhttp2.overrideMimeType){ xmlhttp2.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp2=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp2=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp2) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp2.open('GET',url,true); xmlhttp2.send(null); } function submit_msg(){ nick = document.getElementById("chatnick").value; msg = document.getElementById("chatmsg").value; document.getElementById("chatmsg").value = ""; ajax_write("methods.php?method=w&m=" + msg + "&n=" + nick + "&room=" + room + ""); } function keyup(arg1) { if (arg1 == 13) submit_msg(); } var intUpdate = setTimeout("ajax_read('methods.php')", waittime); var intUpdate = setTimeout("user_read('methods.php')", waittime);

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  • jQuery: How do I pass a value into an Ajax call?

    - by Legend
    I am updating some div as follows: for(var i = 0; i < data.length; i++) { var query = base_url + data[i]; $.ajax({ url: query, type: 'GET', dataType: 'jsonp', timeout: 2000, error: function() { self.html("Network Error"); }, success: function(json) { $("#li" + i).html("<img src='" + json.result.list[0].url + "' />") } }); } The value of i does not work inside the ajax call. I am trying to pass the value of i so that it can attach the element to the proper div. Can someone help me out?

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  • RaphaelJS HTML5 Library pathIntersection() bug or alternative optimisation (screenshots)

    - by user1236048
    I have a chart generated using RaphaelJS library. It is just on long path: M 50 122 L 63.230769230769226 130 L 76.46153846153845 130 L 89.6923076923077 128 L 102.92307692307692 56 L 116.15384615384615 106 L 129.3846153846154 88 L 142.6153846153846 114 L 155.84615384615384 52 L 169.07692307692307 30 L 182.3076923076923 62 L 195.53846153846152 130 L 208.76923076923077 74 L 222 130 L 235.23076923076923 66 L 248.46153846153845 102 L 261.6923076923077 32 L 274.9230769230769 130 L 288.15384615384613 130 L 301.38461538461536 32 L 314.6153846153846 86 L 327.8461538461538 130 L 341.07692307692304 70 L 354.30769230769226 130 L 367.53846153846155 102 L 380.7692307692308 120 L 394 112 L 407.2307692307692 68 L 420.46153846153845 48 L 433.6923076923077 92 L 446.9230769230769 128 L 460.15384615384613 110 L 473.38461538461536 78 L 486.6153846153846 130 L 499.8461538461538 56 L 513.0769230769231 116 L 526.3076923076923 80 L 539.5384615384614 58 L 552.7692307692307 40 L 566 130 L 579.2307692307692 94 L 592.4615384615385 64 L 605.6923076923076 122 L 618.9230769230769 98 L 632.1538461538461 120 L 645.3846153846154 70 L 658.6153846153845 82 L 671.8461538461538 76 L 685.0769230769231 124 L 698.3076923076923 110 L 711.5384615384615 94 L 724.7692307692307 130 L 738 130 L 751.2307692307692 66 L 764.4615384615385 118 L 777.6923076923076 70 L 790.9230769230769 130 L 804.1538461538461 44 L 817.3846153846154 130 L 830.6153846153845 36 L 843.8461538461538 92 L 857.076923076923 130 L 870.3076923076923 76 L 883.5384615384614 130 L 896.7692307692307 60 L 910 88 Also below these chart I have a jqueryUI slider of the same width (860px) and centered with the chart. I want when I move the slider to move a dot on the chart accordingly with the slider position. See attached screenshot: As you can see it seems to work fine. I've implemented this behaviour using the pathIntersection() method. On the slide event at each ui.value (x coordinate) I intersect my chartPath (the one from above) with a vertical straight line at the x coordinate. But still there are some problems. One of them is that it runs very hard, and it kinda freezes sometimes.. and very weird sometimes it doesn't seem to intersect at all even it should.. I'll example below 2 cases I identified: M 499.8461538461538 0 L 499.8461538461538 140 M 910 0 L 910 140 Could you please explain why this intersect behaviour happens (it should return a dot).. and the worst part it seems like it happens randomly.. if I use another chartdata. Also if you can identify another (better) solution to syncronise the slider position with the dot on the chart.. would be perfect. I thought about using Element.getPointAtLength(length), but I don't know how. I think I should save the pathSegments and for each to compute the start Length and the finish Length.

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  • Add an easing to jQuery animate() function.

    - by user348250
    Hello! I'm triying to add an easing function to this code. So I replaced "swing" with "easeInOutQuint" (for example) but it's not working. I'm using jquery 1.4.2 and jquery easing 1.3 downloaded from here (http://gsgd.co.uk/sandbox/jquery/easing/) Any help will be greatly appreciated! Thank you! $(window).load(function() { $('.trigger').click(function() { $('.panel').animate({ width: ['toggle', 'swing'], height: ['toggle', 'swing'], opacity: 'toggle' }, 190, 'linear', function() { }); });

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  • Pre-formatting text to prevent reflowing

    - by mattjn
    I've written a fairly simple script that will take elements (in this case, <p> elements are the main concern) and type their contents out like a typewriter, one by one. The problem is that as it types, when it reaches the edge of the container mid-word, it reflows the text and jumps to the next line (like word wrap in any text editor). This is, of course, expected behavior; however, I would like to pre-format the text so that this does not happen. I figure that inserting <br> before the word that will wrap would be the best solution, but I'm not quite sure what the best way to go about doing that is that supports all font sizes and container widths, while also keeping any HTML tags intact. I figure something involving a hidden <span> element, adding text to it gradually and checking its width against the container width might be on the right track, but I'm not quite sure how to actually put this together. Any help or suggestions on better methods would be appreciated.

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  • Unobstrusive pseudo-classes and attribute selectors emulation in IE

    - by Álvaro G. Vicario
    I'm trying to emulate some pseudo-classes and attribute selectors in Internet Explorer 6 and 7, such as :focus, :hover or [type=text]. So far, I've managed to add a class name to the affected elements: $("input, textarea, select") .hover(function(){ $(this).addClass("hover"); }, function(){ $(this).removeClass("hover"); }) .focus(function(){ $(this).addClass("focus"); }) .blur(function(){ $(this).removeClass("focus"); }); $("input[type=text]").each(function(){ $(this).addClass("text"); }); However, I'm still forced to duplicate selector in my style sheets: textarea:focus, textarea.focus{ } And, to make things worse, IE6 seems to ignore all the selectors when it finds an attribute: input[type=text], input.text{ /* IE6 ignores this */ } And, of course, IE6 ignores selectors with multiple classes: input.text.focus{ /* IE6 ignores this */ } So I'm likely to end up with this mess: input[type=text]{ /* Rules here */ } input.text{ /* Same rules again */ } input[type=text]:focus{ } input.text_and_focus{ } input.text_and_hover{ } input.text_and_focus_and_hover{ } My question: is there any way to read the rules or computed style defined for a CSS selector and apply it to certain elements, so I only need to maintain one set of standard CSS?

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  • Defining and using controller methods in ember.js

    - by OriginalEXE
    first of all, I am total noob when it comes to OOP in JS, this is new to me so treat me like a noob. I am building my first ember.js application and I am stuck (not the first time but I would get unstuck by myself, this is a tough one though). I have two models: forms entries Entries is of course in (one to many) relationship to forms, so each form can have as many properties. Form properties: id : DS.attr( 'number' ), title : DS.attr( 'string' ), views : DS.attr( 'number' ), conversion : DS.attr( 'number' ), entries : DS.hasMany( 'entry' ) Entry properties: id : DS.attr( 'number' ), parent_id: DS.belongsTo( 'form' ) Now, I have forms route that displays all forms in tabled view, and each table row has some info like form id, name etc. and that works great. What I wanted to do is display the number of entries each form has. I figured I should do that via controller, so here is my controller now: // Form controller App.FormController = Ember.ObjectController.extend({ entriescount: function() { var entries = this.get( 'store').find( 'entry' ); return entries.filterBy( 'parent_id', this.get( 'id' ) ).get( 'length' ); }.property( '[email protected]_id') }); Now for some reason, when I use {{entriescount}} in {{#each}} loop, this returns nothing. It also returns nothing in single form route. Note that in both cases, {{title}} for example works. I am wondering, am I going the right way by using controller for this, and how do I get controller to output the data. Thanks

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  • Extjs 3.4 - Button Icon does not show or does not center

    - by Chris
    I want to fill a button with an icon I created but whatever I have tried just seems to put the icon either half cut off and way left, or it doesn't show at all. I've been trying different combinations of CSS and the icon, iconcls, cls button options. I was following the Ext 3 buttons example page but that doesn't seem to display anything for me... This code is an item inside my form panel (I try to replicate this with different buttons in the panel) { xtype: 'container', layout: { type: 'table', columns: 2, tableAttrs: { cellspacing: 5 } }, // padding: 5, pack: 'center', align: 'middle', items: [{ xtype: 'button', width: 40, // scale: 'medium', ref: '../drawToolsBtn', tooltip: 'Drawing Tools', icon: 'img/draw.png', iconAlign: 'top', baseCls: 'x-plain', // iconCls: 'drawBtn', enableToggle: true, // padding: 3, toggleHandler: function(btn, state) { this.showDrawToolsWin(state); }, scope: this },{ xtype: 'label', // columnWidth: 1, // remainder of container padding: 3, text: 'Click button to open Drawing Tools Menu' }] } CSS -------------------- .drawBtn{ background: url(../img/draw.png) !important; } Thank you for any help!

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