Develop Reference

Resize one textarea with another?

I have a website with a few pages, each containing two textareas. All I'm trying to do is get it so that when the user resizes one of the textboxes, the other one sizes with it.
Here's what I've tried so far:
Attempt #1
$(document).ready(function(){
var taheight;
$('textarea').resize(function(){
taheight = $(this).height();
$('textarea').not(this).css('height',taheight);
});
});
I also tried .on('resize', function()... and some other variations before realising it couldn't be done that way on account of the fact the resize functionality on textareas is a browser control, rather than part of the DOM.
Then I found this jsFiddle: jsfiddle.net/gbouthenot/D2bZd/
I tried modifying it and came up with this:
$(document).ready(function(){
var textareaResize = function(source, dest) {
var resizeInt = null;
var thisTextArea;
var resizeEvent = function() {
dest.outerHeight(source.outerHeight());
};
source.on("mousedown", function(e) {
resizeInt = setInterval(resizeEvent, 1000/30);
thisTextArea = $(this).attr('id');
});
$(window).on("mouseup", function(e) {
if (resizeInt !== null) {
clearInterval(resizeInt);
}
resizeEvent();
});
};
textareaResize($("#" + thisTextArea), $("textarea"));
});
But that wouldn't get the id of the target textarea. I also tried thisTextArea = e.target.id, but that wouldn't work either.
Help! Where are am I going wrong?

You can do that by using jQuery UI resizable() and call the resize event from it.
$("textarea").resizable({
resize: function() {
//To get the id of the textarea being resized
var id = $(this).find('textarea').attr('id');
//You could also just put the resize function code here
}
});
jQuery UI Resizable

Jquery .change() event fires only once

So I'm fairly novice with jquery and js, so I apologise if this is a stupid error but after researching I can't figure it out.
So I have a list of data loaded initially in a template, one part of which is a dropdown box that lets you filter the data. My issue is that the filtering only works once? As in, the .change function inside $(document).ready() only fires the once.
There are two ways to reload the data, either click the logo and reload it all, or use the search bar. Doing either of these at any time also means the .change function never fires again. Not until you refresh the page.
var list_template, article_template, modal_template;
var current_article = list.heroes[0];
function showTemplate(template, data)
{
var html = template(data);
$("#content").html(html);
}
$(document).ready(function()
{
var source = $("#list-template").html();
list_template = Handlebars.compile(source);
source = $("#article-template").html();
article_template = Handlebars.compile(source);
source = $("#modal-template").html();
modal_template = Handlebars.compile(source);
showTemplate(list_template,list);
$(".articleButton").click(function()
{
var index = $(this).data("id");
current_article = list.heroes[index];
showTemplate(article_template,current_article);
$('.poseThumb').click(displayModal);
});
$("#classFilter").change(function()
{
console.log("WOW!");
var classToFilter = this.value;
var filteredData =
{
heroes: list.heroes.filter(function(d)
{
if (d.heroClass.search(classToFilter) > -1)
{
return true;
}
return false;
})
};
console.log(filteredData);
showTemplate(list_template,filteredData);
$(".articleButton").click(function()
{
var index = $(this).data("id");
current_article = filteredData.heroes[index];
showTemplate(article_template,current_article);
$('.poseThumb').click(displayModal);
});
});
$("#searchbox").keypress(function (e)
{
if(e.which == 13)
{
var rawSearchText = $('#searchbox').val();
var search_text = rawSearchText.toLowerCase();
var filteredData =
{
heroes: list.heroes.filter(function(d)
{
if (d.name.search(search_text) > -1)
{
return true;
}
return false;
})
};
console.log(filteredData);
showTemplate(list_template,filteredData);
$(".articleButton").click(function()
{
var index = $(this).data("id");
current_article = filteredData.heroes[index];
showTemplate(article_template,current_article);
$('.poseThumb').click(displayModal);
});
}
});
$("#logo").click(function()
{
showTemplate(list_template,list);
$(".articleButton").click(function()
{
var index = $(this).data("id");
current_article = list.heroes[index];
showTemplate(article_template,current_article);
$('.poseThumb').click(displayModal);
});
});
//$("#logo").click();
});
function displayModal(event)
{
var imageNumber = $(this).data("id");
console.log(imageNumber);
var html = modal_template(current_article.article[0].vicPose[imageNumber]);
$('#modal-container').html(html);
$("#imageModal").modal('show');
}
I should note two things: first, that the search bar works perfectly, and the anonymous function inside both of them is nearly identical, and like I said, the filtering works perfectly if you try it after the initial load. The second is that the same problem occurs replacing .change(anonymous function) with .on("change",anonymous function)
Any help or advice would be greatly appreciated. Thanks.

I agree with Fernando Urban's answer, but it doesn't actually explain what's going on.
You've created a handler attached to an HTML element (id="classFilter") which causes part of the HTML to be rewritten. I suspect that the handler overwrites the HTML which contains the element with the handler on it. So after this the user is clicking on a new HTML element, which looks like the old one but doesn't have a handler.
There are two ways round this. You could add code inside the handler which adds the handler to the new element which has just been created. In this case, that would mean making the handler a named function which refers to itself. Or (the easier way) you could do what Fernando did. If you do this, the event handler is attached to the body, but it only responds to clicks on the #classFilter element inside the body. In other words, when the user clicks anywhere on the body, jQuery checks whether the click happened on a body #classFilter element. This way, it doesn't matter whether the #classFilter existed when the handler was set. See "Direct and delegated events" in jQuery docs for .on method.

Try to use some reference like 'body' in the event listeners inside your DOM like:
$('body').on('click','.articleButton', function() {
//Do your stuff...
})
$('body').on('click','#classFilter', function() {
//Do your stuff...
})
$('body').on('keypress','#searchbox', function() {
//Do your stuff...
})
$('body').on('click','#logo', function() {
//Do your stuff...
})
This will work that you can fire it more than once.

Add or Delete jQuery sortable element and remember order

I'm implementing something similar to this in one of my Wordpress metabox. User should be able to add and remove jquery-ui sortable elements and remember the position(order) of the elements exists.
I already know how to remember the position(order) when the elements are resorted by dragging and dropping.
jQuery(document).ready(function () {
jQuery('ul').sortable({
stop: function (event, ui) {
var data = jQuery(this).sortable('toArray');
jQuery('#elements-order').val(data);
}
});
});
This will output an array which contains the order like 1,2,3,5,4 But, when new elements are added or elements are deleted, how to make this code run to remember the order of the new elements.
This is the code I use to Add elements
jQuery(document).ready(function () {;
var wrapperSize = jQuery("#element-area-top").width();
(function () {
jQuery(".add-element").on("click", ".add-item", function () {
var start = jQuery("#sortable"),
selectBoxVal = jQuery("#element-list").val();
var element = null;
element = ('<li></li>');
var newRow = jQuery(element);
jQuery(start).append(newRow);
jQuery("#elements-order").val(jQuery('#elements-order').val() + i+',');
});
})();
This is the code I use to delete elements
jQuery("#sortable").on("click", ".delete", function () {
jQuery(this).parents(/*someelement*/).remove();
});
So, could anyone know how to do this ?

You can get sort order with same logic in add/delete functions as well (just replace this with '#ul').
var data = jQuery('#ul').sortable('toArray');
jQuery("#elements-order").val(data);
Or even better, put above code in a common function and just call common function. Here is updated fiddle demonstrating same.

Getting html out of multiple input labels with the same class

So this is my code so far...
function doAlertings()
{
var inputlabels = $('.inputLabel').each(function(i, obj) {
});
alert(inputlabels);
}
This will alert all 12 of my input labels one after another however they are all blank. But when I use...
var inputlabels = $('.inputLabel').html();
alert(inputlabels);
That will alert only the first input label and stop there. Anyone got an idea of how to get the html out of each one?
Help is much appreciated.
Thanks

Use $(this).text() to get the text of each element in each loop
$('.inputLabel').each(function(i, obj) {
alert($(this).html()); // console.log($(this).text());
});

Pay attention to indentation - messy indentation and formatting makes code obscure and you easily overlook a mistake, like in your case.
After you format your code properly, you get:
function doAlertings()
{
var inputlabels = $('.inputLabel').each(function(i, obj) {
// do nothing
});
alert(inputlabels);
}
So, you clearly see, you are calling the alert function just once.
If your intent is to alert contents of the labels, this would be the way:
function doAlertings()
{
var inputlabels = $('.inputLabel').each(function(i, obj) {
alert( $(obj).html() );
});
}

prototype AJAX loading blank page onSuccess

I'm working on a magento project, and I'm trying to load more products on the click of the more button.
I can see them loading but then it will just load a blank page after it.
I have no idea what is happening or why.
This is the code I have
var loadMore = Class.create({
initialize: function (list, href, pattern) {
var that = this;
this.list = list;
this.list.insert({ after : '<div class="more"><span id="more_button" class="more-button">More</span></div>'});
this.href = href.readAttribute('href');
this.button = $('more_button');
this.holder = new Element('div', { 'class': 'response-holder' });
this.button.observe('click', function () {
if ( !that.button.hasClassName('loading') ) {
new Ajax.Request(that.href, {
onCreate: function () {
that.button.addClassName('loading');
},
onSuccess: function(response) {
if (200 == response.status) {
that.holder.update(response.responseText).select(pattern).each(function(elem) {
that.list.insert({ bottom : elem });
}),
that.href = that.holder.select('.next-page')[0].readAttribute('href');
that.button.removeClassName('loading');
if ( !that.href ) {
that.button.up().remove();
}
}
}
});
}
});
}
});
If anyone can help me out that would be awesome!
Thanks in advance.

I've having the same problem in my magento Iphone orginal theme, but the error is because of code injection, mostly "script" tags from google analytics, clicktale and similar stuff.
what i've done to fix it was to "parse" the ajax response and modify the opening "script" tag with the html entity:
below the line 117 (aprox in iphone.js)
if (200 == response.status) {
that.holder.update(response.responseText).select(pattern).each(function(elem) {
replace with this:
str = response.responseText;
str = str.replace(/<script/gi, '<script');
that.holder.update(str).select(pattern).each(function(elem) {

Might I suggest you rewrite your code and use thiz for that? Your code is extremely hard to read.
I do not see any reason to use the onCreate event of the Ajax Request, which by the way is reserved for Ajax Responders (per spec: http://prototypejs.org/doc/latest/ajax/Ajax/Request/)
Instead, you can add this classname at the moment you enter into !that.button.hasClassName('loading') ...
if ( !that.button.hasClassName('loading') ) {
that.button.addClassName('loading');
new Ajax.Request(that.href, {
....
There is a lot more going on behind the scene, like your CSS, magento of course, but also containing and parent html elements so it is very difficult to give any sound advice. What have you done in order to debug this?
Karl..