Develop Reference

Use XPath or onClick or onblur to select an element and use jQuery to blur this element

*UPDATE:I am new to jQuery, as well as using XPath, and I am struggling with getting a proper working solution that will blur a dynamically created HTML element. I have an .onblur event hooked up (doesn't work as expected), and have tried using the $(document.activeElement), but my implementation might be incorrect. I would appreciate any help in creating a working solution, that will blur this element (jqInput) when a user clicks anywhere outside the active element. I have added the HTML and jQuery/JavaScript below.
Some ideas I have had:
(1) Use XPath to select a dynamic HTML element (jqInput), and then use jQuery's .onClick method to blur a this element, when a user clicks anywhere outside of the area of the XPath selected element.
(2) Use the $(document.activeElement) to determine where the .onblur should fire:
var thisTitle = input0;
var activeElement = $(document.activeElement);
if (thisTitle != activeElement) {
jqInput.hide();
_layout.viewHeaderTextInput.inputOnBlurHandler(canvasObj, jqHeaderText, jqInput);
}
I am open to all working solutions. And hopefully this will answer someone else's question in the future.
My challenge: Multiple elements are active, and the .onblur does not fire. See the image below:
NOTE: The <input /> field has focus, as well as the <div> to the left of the (the blue outline). If a user clicks anywhere outside that <input />, the blur must be applied to that element.
My Code: jQuery and JavaScript
This is a code snippet where the variable jqInput and input0 is created:
var jqInput = null;
if (jqHeaderText.next().hasClass("inline-editable"))
{
//Use existing input if it already exists
jqInput = jqHeaderText.next();
}
else
{
//Creaet a new editable header text input
jqInput = $("<input class=\"inline-editable\" type=\"text\"/>").insertAfter(jqHeaderText);
}
var input0 = jqInput.get(0);
//Assign key down event for the input when user preses enter to complete entering of the text
input0.onkeydown = function (e)
{
if (e.keyCode === 13)
{
jqInput.trigger("blur");
e.preventDefault();
e.stopPropagation();
}
};
This is my .onblur event, and my helper method to blur the element:
input0.onblur = function ()
{
_layout.viewHeaderTextInput.inputOnBlurHandler(canvasObj, jqHeaderText, jqInput);
};
inputOnBlurHandler: function (canvasObj, jqHeaderText, jqInput)
{
// Hide input textbox
jqInput.hide();
// Store the value in the canvas
canvasObj.headingText = jqInput.val();
_layout.updateCanvasControlProperty(canvasObj.instanceid, "Title", canvasObj.headingText, canvasObj.headingText);
// Show header element
jqHeaderText.show();
_layout.$propertiesContent.find(".propertyGridEditWrapper").filter(function ()
{
return $(this).data("propertyName") === "Title";
}).find("input[type=text]").val(canvasObj.headingText); // Update the property grid title input element
}
I have tried using the active element, but I don't think the implementation is correct:
var thisTitle = input0;
var activeElement = $(document.activeElement);
if (thisTitle != activeElement) {
jqInput.hide();
_layout.viewHeaderTextInput.inputOnBlurHandler(canvasObj, jqHeaderText, jqInput);
}
My HTML code:
<div class="panel-header-c">
<div class="panel-header-wrapper">
<div class="panel-header-text" style="display: none;">(Enter View Title)</div><input class="inline-editable" type="text" style="display: block;"><div class="panel-header-controls">
<span></span>
</div>
</div>
</div>
I thank you all in advance.

Show hide/div based on drop down value at page load

I have the following code that I use to hide/show a div using a drop-down. If the Value of the drop-down is 1, I show the div, otherwise I hide it.
var pattern = jQuery('#pattern');
var select = pattern.value;
pattern.change(function () {
if ($(this).val() == '1') {
$('#hours').show();
}
else $('hours').hide();
});
The select drop down retrieves its value from the database using form model binding:
<div class="form-group">
<label for="pattern" class="col-sm-5 control-label">Pattern <span class="required">*</span></label>
<div class="col-sm-6">
{{Form::select('pattern',['0'=> 'Pattern 0','1'=> 'Pattern 1'],null,
['id'=>'pattern','class' => 'select-block-level chzn-select'])}}
</div>
</div>
This select drop-down then hides or shows the following div:
<div id="hours" style="border-radius:15px;border: dotted;" >
<p>Example text</p>
</div>
The problem:
The div won't be hidden if the pattern stored in the database is set to 0. I have to manually select "Pattern 0" from the drop down to change it. I know that is due to the .change() method. But how do I make it hide/show on page load?

Usually in such case I store the anonymous function reference as below:
var checkPattern = function () {
if ($('#pattern').val() == '1') {
$('#hours').show();
}
else $('#hours').hide();
}
It makes the code ready to use in more then one place.
Now your issue could be resolve in a more elegant way:
$(document).ready(function(){
// add event handler
$('#pattern').on('change', checkPattern);
// call to adjust div
checkPattern();
});

Well, if the element "should" be visible by default, you just then have to check condition to "hide it" (you don't have to SHOW an element that is already visible...) :
if(pattern.value != %WHATEVER%) { $('#hours').toggle(); }
Then, to switch display on event or condition or whatever :
pattern.change(function(evt){
$('#hours').toggle();
});
Not sure that your event will work. I'd try something like
$(document).on(..., function(evt){
//behaviour
});
http://api.jquery.com/toggle/
https://learn.jquery.com/events/handling-events/

Get a variable immediately after typing

I have this code
<span></span>
and this
<div> variable like a number </div>
and
<script>
$(document).ready(function(){
var x = $('div').html();
$('span').html(x)
});
</script>
I need that every time I change the div value, the span reflects the changes of the div
For example.
If I type 1 in the div, the span should immediately show me number 1
If I type 3283 in the div, the span should immediately show me number 3283
but with this code - I need to create
$("div").click(function(){
var x = $('div').html();
$('span').html(x)
});
I do not want to use .click(function) . in need this function run Automatically
after your answer
I use this code
http://jsfiddle.net/Danin_Na/uuo8yht1/3/
but doesn't work . whats the problem ?

This is very simple. If you add the contenteditable attribute to the div, you can use the keyup event:
var div = $('div'),
span = $('span');
span.html(div.html());
div.on('keyup', function() {
span.html(div.html());
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<span></span>
<div contenteditable="true"> variable like a number </div>

here is a demo with input:
html:
<span></span>
<input type="text" id="input01">
js:
$(document).ready(function(){
$( "#input01" ).on('keyup',function() {
var x = parseFloat($('#input01').val());
$('span').html(x)
});
});

How can you edit in div element on browser?
It have to be any input type then only you can edit or change value.
So for that on click of that div you have to show some input/textarea at that place and on change event of that input you can update the value of input in span.
<div id="main-div">
<input type="text" id="input-box" />
</div>
<script>
$(document).ready(function(){
$('#input-box').change(function(){
$('span').html($(this).text)
});
});
</script>

$("input[type=text]").change(function(){
var x = $('div').html();
$('span').text(x)
});
This can be use with textbox or textarea, For div user cannot enter text.
http://jsfiddle.net/uuo8yht1/

.change() will not work with a DIV-element. Since you did not specify how the DIV is updated I would recommend either setting a timer or using .keypress()
Example with timer:
$(function(){
var oldVal = "";
var divEl = $("div");
setInterval(function(){
var elTxt = divEl.text();
if (elTxt != oldVal) {
oldVal = elTxt;
$("span").text(elTxt);
}
}, 50);
});

You need a key listener, jquery provides a .keypress(), Examples are provided on keypress documentation.
I recommend to lookup the combination of .on() and .keyup() with some delay or throttle/debounce either via jquery or underscore.js library.
One of the reason or need for delay is to prevent too many event calls which will affect performance.
Here is an example of code in another question regarding throttle and keyup
Hope this helps.

jQuery - Setting Hidden field to Textarea contents when Textarea name is Dynamic

I have a textarea in each row of my table. I need to set this textarea to the value of a hidden field associated with it.
The names of the textarea and hidden field look like so:
Textarea name:
sc-(Account Name)c
Hidden fields name:
sc-(Account Name)h
An example would be:
Textarea:
sc-usernamec
Hidden field:
sc-usernameh
On submit or while they type the text, I need the hidden field to be updating with what is typed in the textarea. I'm fairly new to jQuery and Javascript, and I'm wondering how I can either a) go through each textarea field setting its content in the associated hidden field or b) set the hidden field to the textarea as they type.
I'm not sure which option I should use, nor how I would go about programming something of this nature.

If the textarea in question is a normal textarea then you can try
$(function() {
$(":hidden[name^='sc']").each(function() { // all hidden starting with sc
var id = this.id.substring(0,this.id.length-1)+"c";
var hid = $(this);
$("#"+id).on("keyup",function() {
hid.val($(this).val());
});
});
});
Live Demo
All bets are of course off if the textarea is converted to an editor - then you need to read
jQuery and TinyMCE: textarea value doesn't submit
which means
$(function() {
$("#myForm").on("submit",function() {
$('#sc_texth').val(tinyMCE.get('sc_textc').getContent());
});
});
or for more
$(function() {
$("#myForm").on("submit",function() {
$(":hidden[name^='sc']").each(function() { // hidden and starts with sc
var textareaID = this.id.substring(0,this.id.length-1)+"c";
$(this).val(tinyMCE.get(textareaID).getContent());
});
});
Live Demo

I think this may help you.
<p><textarea name="sc-username" id="sc-username" ></textarea></p>
<p><textarea name="sc-usernameh" id="sc-usernameh" style="display:none;"></textarea></p>
$(document).ready(function(){
$("textarea").on("keyup",function() {
var name = $("#"+$(this).attr('name')+"h");
if(name)
name.val($(this).val());
});
});

Modify this function to display all the checked checkboxes' values (instead of last selected)

I am replicating the functionality of a select/multiselect element and I'm trying to use this function to display the items which have been selected in the relevant container. I need to show all the values that have been selected in a comma-separated list, but it's currently only showing one selection (the last one made). It's also displaying the checkbox, background color, etc. of the list item selected instead of the checkbox value (i.e. value="Black").
I'm using this for a few multiselect form elements where I couldn't use the jQuery UI MultiSelect Widget because they needed to be styled in a very specific way (options displayed with background colors or images and spread out over several columns, etc.).
I've included the relevant code below, and I've posted a working example of the styled 'faux'-multiselect element here: http://jsfiddle.net/chayacooper/GS8dM/2/
JS Snippet
$(document).ready(function () {
$(".dropdown_container ul li a").click(function () {
var text = $(this).html();
$(".dropdown_box span").html(text);
});
function getSelectedValue(id) {
return $("#" + id).find("dropdown_box span.value").html();
}
});
HTML Snippet
<div class="dropdown_box"><span>Colors</span></div>
<div class="dropdown_container">
<ul>
<li><a href="#"><div style="background-color: #000000" class="color" onclick="toggle_colorbox_alt(this);" title="Black"><div class=CheckMark>✓</div>
<input type="checkbox" name="color[]" value="Black" class="cbx"/></div>Black</a>
</li>
<!-- More list items with checkboxes -->
</ul>
</div>
I've tried several other methods (including many of the ones listed here: How to retrieve checkboxes values in jQuery), but none of those worked with hidden checkboxes and/or the other functions I need to incorporate in these particular form elements.

well, to start with change click(..){..} in document.ready to
$(".dropdown_container ul li a").click(function () {
var text = $(this).html();
var currentHtml = $(".dropdown_box span").html();
var numberChecked = $('input[name="color[]"]:checked').length;
$(".dropdown_box span").html(currentHtml.replace('Colors',''));
if (numberChecked > 1) {
$(".dropdown_box span").append(', ' + text);
} else {
$(".dropdown_box span").append(text);
}
});
this will do the appending of text right.
however I couldn't understand the handling of images in the code.
Update, to handle just the value:
replace var text = $(this).html(); with
var text = $(this).find("input").val();

It might be easier to just grab all the values of the check boxes whenever the click event is triggered and then append the values to your span. Like http://jsfiddle.net/9w95b/
I would also suggest not putting the <input> tags inside your <a> tags.