Same browser version, 2 different javascript handlings - javascript

Problem solved: I removed the first function as it wasn't needed anyways, and now it all works in all browsers. Thanks for the posts though!
My issue here is that I have a javascript which on one server runs perfectly with no issues what-so-ever in IE. But on another server gives me 2 errors in IE.
It claims that my offset().top is either Null or not an object.
My fade in and out effect doesn't even become active.
Then I have another HUGE issue, which is that in FireFox NON of it all works.
OPS: This is a webpart, so additional javascripts running on the site might could intervene with the javascript I am trying to execute here. But I'm not sure.
I've tested this webpart in IE 8.0.7600.16385, on both servers.
Script:
<script type="text/javascript"
src="/_layouts/Progressive/Javascripts/jquery-1.4.3.js"></script>
<script type="text/javascript">
(function($) {
$.fn.goTo = function() {
// This is where IE on the second server claims the error to be.
$('html, body').animate({scrollTop: $(this).offset().top + 'px'}, 'fast');
return this;
}
})(jQuery);
function showParagraphs(sender) {
var id = sender.getAttribute('href');
if ($('#<%=paragraph.ClientID%>').hasClass("readable")) {
$('#<%=paragraph.ClientID%>').removeClass("readable");
highlightSelected(id);
}
else {
$('#<%=paragraph.ClientID%>').addClass("readable");
rmvClass(id);
}
};
function highlightSelected(id) {
$(id).goTo();
$(id).addClass("reading");
// This part is what isn't activated on the second server.
$('.reading').fadeOut(400).fadeIn(400).fadeOut(400).fadeIn(400);
// .reading only adds a gray background to the DIV.
};
function rmvClass(id) {
$('div').each(function() {
if ($(this).hasClass("reading")) {
$(this).removeClass("reading");
}
});
}
function toTop() {
$('div').each(function() {
$(this).removeClass("reading");
});
$('#<%=paragraph.ClientID%>').addClass("readable");
}
$(document).ready(function() {
$('#<%=q.ClientID%>').find('dd').hide().end().find('dt').click(function() {
$(this).next().slideToggle("fast");
});
$("#<%=q.ClientID%> dt").click(function() {
if ($(this).hasClass("selected")) {
$(this).removeClass("selected");
}
else {
$(this).addClass("selected");
}
});
});
</script>
Any thoughts or suggestions?

When
$(id)
returns an empty jQuery object, then ".offset()" will return null. You're calling that "highlightSelected" code with the "href" value from something, so perhaps what you think to be an "id" value that corresponds to something on the page, well it really doesn't. It's hard to know for sure, however, because you did not post any of the relevant HTML, nor did you even show where "showParagraphs()" is called!

Related

jQuery function not started

I have a weird problem. I have a freight calculation field to be executed if the User deletes a digit input , I hide one content. While running the script in chrome console, it is loaded, but when using the call in html, js it does not run. This is what I have.
https://jsfiddle.net/diasbass/u3xr0921/
jQuery(document).ready(function($) {
$("#btnFreteSimulacao").click(function() {
$("#txtCep").keyup(function() {
if ($("#txtCep").val()) {
$('p.montagem').hide();
} else {
$('p.montagem').show();
}
});
});
});
The keyup event handler is inside the click function, probably it is of no use.
Also need to check $("#txtCep").val().length for showing and hiding the p.montagem
jQuery(document).ready(function($) {
$("#txtCep").keyup(function() {
if($("#txtCep").val().length ==0) {
$('p.montagem').hide();
} else {
$('p.montagem').show();
}
});
});
jsfiddle
Here you are mixing two asynchronous events 1) Button click 2) Input keyup. Your code expects to work when both are happening same time. I would suggest remove dependency on one event. Like below.
$( "#btnFreteSimulacao" ).click(function() {
// $("#txtCep").keyup(function() {
if($("#txtCep").val()) {
$('p.montagem').hide();
} else {
$('p.montagem').show();
}
});
// });
});
If thats not possible, try to look towards promises.

Two javascript functions won't work at the same time

I have one script that shows a tooltip on click and the other script shows a menu after a certain point in the page.
If the menu doesn't load, then I can click on the buttons to show the tooltips just fine. But when the menu does show up, the tooltips script doesn't show anymore.
<script>
$(document).ready(function() {
$('#left-tooltip').click(function() {
$('#lollefttooltip').toggle();
});
});
$(document).ready(function() {
$('#right-tooltip').click(function() {
$('.right-tooltip').toggle();
});
});
</script>
<script>
$(function() {
$(window).scroll(function() {
if ($(this).scrollTop() > 650) {
$("#nav-block:hidden").css('visibility', 'visible');
$("#nav-block:hidden").fadeIn('650');
$("#nav-wrap:hidden").css('visibility', 'visible');
$("#nav-wrap:hidden").fadeIn('650');
$("#header-wrap:hidden").css('visibility', 'visible');
$("#header-wrap:hidden").fadeIn('650');
} else {
$("#nav-block:visible").fadeOut("650");
$("#nav-wrap:visible").fadeOut("650");
$("#header-wrap:visible").fadeOut("650");
}
});
});
</script>
Thanks in advance for the help!
update: Here is all the code I have for this. http://jsfiddle.net/parachutepenny/82J6G/11/
I'm sorry in advance for any beginner errors that I may have all over the place. I'm still learning how to code.
This doesn't answer your question, but there are some great opportunities to optimize here. Aside from best practice, they may also sort out the bugginess. Something like:
$(document).ready(function() { // combine doc.ready
var win = window, // store window as a variable
$bod = $('body');
$('#left-tooltip').click(function() {
$('#lollefttooltip').toggle();
});
$('#right-tooltip').click(function() {
$('.right-tooltip').toggle();
});
$(win).scroll(function() {
if (win.scrollY > 650) { // use scrollY from window variable so you're not retrieving from the DOM
$bod.addClass('navVisible'); // use classes on body to trigger CSS transitions on the children
} else {
$bod.removeClass('navHidden');
}
});
});
Put your multiple click function into single ready function.It may cause readability problem.
Follow this link.
Multiple document.ready() function

automatic clicks on links and doing something with every page's DOM

i have some links in a web page ,what i want to do :
Trigger click event on every link
When the page of every link is loaded , do something with page's DOM(fillProducts here)
What i have tried :
function start(){
$('.category a').each(function(i){
$.when($(this).trigger('click')).done(function() {
fillProducts() ;
});
})
}
Thanks
What you want to do is much more complicated than you seem to be giving it credit for. If you could scrape webpages, including AJAX content, in 7 lines of js in the console of a web browser you'd put Google out of business.
I'm guessing at what you want a bit, but I think you want to look at using a headless browser, e.g. PhantomJs. You'll then be able to scrape the target pages and write the results to a JSON file (other formats exist) and use that to fillProducts - whatever that does.
Also, are you stealing data from someone else's website? Cause that isn't cool.
Here's a solution that may work for you if they are sending their ajax requests using jQuery. If they aren't you're going to need to get devilishly hacky to accomplish what you're asking (eg overriding the XMLHttpRequest object and creating a global observer queue for ajax requests). As you haven't specified how they're sending the ajax request I hope this approach works for you.
$.ajaxSetup({
complete: function(jQXHR) {
if(interested)
//do your work
}
});
The code below will click a link, wait for the ajax request to be sent and be completed, run you fillProducts function and then click the next link. Adapting it to run all the clicks wouldn't be difficult
function start(){
var links = $('.category a');
var i = 0;
var done = function() {
$.ajaxSetup({
complete: $.noop//remove your handler
});
}
var clickNext = function() {
$(links.get(i++)).click();//click current link then increment i
}
$.ajaxSetup({
complete: function(jQXHR) {
if(i < links.length) {
fillProducts();
clickNext();
} else {
done();
}
}
});
clickNext();
}
If this doesn't work for you try hooking into the other jqXHR events before hacking up the site too much.
Edit here's a more reliable method in case they override the complete setting
(function() {
var $ajax = $.ajax;
var $observer = $({});
//observer pattern from addyosmani.com/resources/essentialjsdesignpatterns/book/#observerpatternjquery
var obs = window.ajaxObserver = {
subscribe: function() {
$observer.on.apply($observer, arguments);
},
unsubscribe: function() {
$observer.off.apply($observer, arguments);
},
once: function() {
$observer.one.apply($observer, arguments);
},
publish: function() {
$observer.trigger.apply($observer, arguments);
}
};
$.ajax = function() {
var $promise = $ajax.apply(null, arguments);
obs.publish("start", $promise);
return $promise;
};
})();
Now you can hook into $.ajax calls via
ajaxObserver.on("start", function($xhr) {//whenever a $.ajax call is started
$xhr.done(function(data) {
//do stuff
})
});
So you can adapt the other snippet like
function start(){
var links = $('.category a');
var i = 0;
var clickNextLink = function() {
ajaxObserver.one("start", function($xhr) {
$xhr.done(function(data) {
if(i < links.length) {
fillProducts();
clickNextLink();
} else {
done();
}
});
})
$(links.get(i++)).click();//click current link then increment i
}
clickNextLink();
}
try this:
function start(){
$('.category a').each(function(i){
$(this).click();
fillProducts() ;
})
}
I get ya now. This is like say:
when facebook loads, I want to remove the adverts by targeting specific class, and then alter the view that i actually see.
https://addons.mozilla.org/en-US/firefox/addon/greasemonkey/
Is a plugin for firefox, this will allow you to create a javascript file, will then allow you to target a specific element or elements within the html rendered content.
IN order to catch the ajax request traffic, you just need to catcher that within your console.
I can not give you a tutorial on greasemonkey, but you can get the greasemonkey script for facebook, and use that as a guide.
http://mashable.com/2008/12/25/facebook-greasemonkey-scripts/
hope this is it

Loading GIF while AJAX completes

This should be quite simple but I'll be darned if I can work it out. Just trying to get a div to display while my ajax is processing and then hide once done (I've put a sleep in there purely to test its working as locally it loads so fast I'm not sure if its working or not)!
The html page has this code in the script: -
$(document).ready(function(){
$("#loadingGIF").ajaxStart(function () {
$(this).show();
});
$("#loadingGIF").ajaxStop(function () {
window.setTimeout(partB,5000)
$(this).hide();
});
function partB(){
//just because
}
var scenarioID = ${testScenarioInstance.id}
var myData = ${results as JSON}
populateFormData(myData, scenarioID);
});
There is then a div in my page like so (which I can see in the source of the page just hidden): -
<div id="loadingGIF" ><img src='${application.contextPath}/images/spinner.gif' height="50" width="50"></div>
The ready code then goes off and calls this: -
function populateFormData(results, scenarioID) {
$table = $('#formList')
for(var i in results){
var formIDX = (results[i]["forms_idx"])
var formID = (results[i]["form_id"])
appendSubTable(formIDX, scenarioID, $table, formID);
}
}
Which references this multiple times calling several AJAX posts: -
function appendSubTable(formIDX, scenarioID, $table, formID) {
var $subTable = $table.find("#" + formIDX).find('td:eq(1)').find("div").find("table")
var url = "**Trust me this bits OK ;) **"
$.post(url, {
formIDX : formIDX, scenarioID : scenarioID, formID :formID
}, function(data) {
$subTable.append(data)
}).fail(function() {
});
}
Any pointers gratefully received...
Interestingly I bunged some alerts into my ajaxstart and stop and neither show up ever so I'm missing something obvious :S When I check the console in firefox I can see that all my POSTs are completing....
You should probably add the Ajaxstart and stop global event handlers to the document node like this
$(document).ajaxStart(function () {
$("#loadingGIF").show();
});
I realized my problem, I needed to register the ajaxstart and stop to the document not the div!
So instead of this: -
$("#loadingGIF").ajaxStart(function () {
$(this).show();
});
I now have: -
$(document).ajaxStart(function () {
$("#loadingGIF").show();
});
I assume this is because its the document that the ajax is running against not the div although my understanding there may not be 100% accurate at least this works so please tell me if I've misunderstood this! :)
#jbl, thanks for this pointer I did this to also leave the notification on screen for a few more moments just to make sure everything is loaded.

Help me diagnose this jQuery loop / Bookmark Hash problem?

I'm having some trouble getting my jquery to render correctly 100% of the time - the code I am using is located below. Its purpose is to "simulate" the feel of a threaded forum by hiding everything but the subject of replies - when a subject is clicked, the 1st post is then replaced with the reply.
You can see an example of it in action here:
http://bulldogsworld.com/general-bulldog-chat/50-lbs-bulldog-one-shin-pic
The problem is the script doesn't work so well when people land via a bookmark # in the URL, such as:
http://bulldogsworld.com/general-bulldog-chat/50-lbs-bulldog-one-shin-pic#comment-1627028
Specifically, the problem which happens is for some reason all posts below the bookmark entry point are replicated twice. I can't figure out why this is happening - any thoughts?
I'm pulling my hair out on this one - Any help / guidance is greatly appreciated!
function flip(comment) {
$('#first-post').replaceWith(comment.closest(".comment").clone().attr('id','first-post'));
$('#first-post').children('.forumthreadtitle').children('.comment-info').empty();
$('#first-post').find(':hidden').fadeIn('slow');
$('html, body').animate({scrollTop:0}, 'fast');
return false;
}
$(document).ready(
function(){
$('.submitted').each(function() {
$(this).clone().addClass('comment-info').appendTo($(this).siblings('.forumthreadtitle'));
if(!$(this).parent('#first-post').html()) {
$('#first-post').children('span.taxonomy').clone().appendTo($(this));
}
});
$('.display_mode').html('Show All Replies');
expandedMode = false;
$('.display_mode').click(function() {
if ( expandedMode == false ) {
$('.forumthreadtitle').siblings().show();
$(this).html('Collapse Replies');
expandedMode = true;
}
else
{
$('.forumthreadtitle').siblings().hide();
$(this).html('Show All Replies');
expandedMode = false;
}
});
$('.forumthreadtitle').siblings().hide();
if(window.location.hash) {
flip($(window.location.hash).nextAll().children('.forumthreadtitle').show());
}
$('.forumthreadtitle').click(function() {
pageTracker._trackPageview("/comment?page=" + document.location.pathname);
flip($(this));
} );
});
You probably need to use next() instead of nextAll() in your flip
flip($(window.location.hash).next().children('.forumthreadtitle').show());
nextAll() returns all elements after selected, and they all are passed to flip function.

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