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.

Change caret position in textarea by click on button

I have a textarea with this content :
[supreme] a test text or anything [/supreme]
I have a button too. I want to when button clicked , textarea selected and change caret position to this :
[supreme] a test text or anything <caret postion> [/supreme]
How can i do this with javascript or jquery ?
Thanks .

Here is a quick example. It could be done cleaner but it should get you started.
$(document).ready(function() {
$('.button').click(function(e) {
var $textArea = $('.textArea');
var prevValue = $textArea.val();
$textArea.focus().val('').val(prevValue);
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<textarea class="textArea">a test text or anything</textarea>
<button class="button">
CLick Me
</button>

Trigger onKeyUp from script after input value is changed

I have a few input fields that use onKeyUp="script" to return data the moment something is entered.
As a shortcut, I would like to be able to add a value to one of the fields when data is entered from another location AND trigger the script.
I can use document.getElementById("myID").value = MyValue; to add a specific value to the input box, or .addEventListener(); to watch another input field.
This part works well.
However, I have not been able to trigger anything equivalent to onKeyUp, which will happen either when:
1. You press/release a key while the input field is in focus.
2. You focus the input and release a key AFTER the script has added a value.
3. You enter the input field via [TAB] AFTER the script has added a value.
Adding .keyup(); or .keypress(); have had no effect.
I've been able to use .focus(); to focus and then change the input, but this does not have the same effect as pressing [TAB]
What can I do to trigger the onKeyUp for this field, even if the data was not manually typed?
ADDITIONAL INFO
This part works...
<input type="text" id="box1" onKeyUp="script1();">
<div id="result1" "> (script places result here) </div>
Add value from another location - Option 1
<input type="text" id="Test1">
<button type="button" onclick="TestScript()"> TEST</button>
<script type='text/javascript'>
function TestScript() {
var test1=document.getElementById("Test1").value;
document.getElementById("box1").value = test1;
document.getElementById("box1").keyup();
return false;
}
</script>
Add value from another location - Option 2
<script type='text/javascript'>
window.onload = function () {
document.getElementsByName("box2")[0].addEventListener('change', TestScript2);
function TestScript2(){
var test2=document.getElementById("box2").value;
document.getElementById("box1").value = test2;
}}
</script>
Both of these options will copy the value to the correct location, but I have not been able to get either to trigger the onKeyUp so that the original script realizes something has changed.
Non working Fiddle example: https://jsfiddle.net/mj8g4xa2/4/

Trigger keyup programatically in;
JAVASCRIPT:
Call onkeyup() on the element.
Create a new keyup event and dispatch it using the element. Note: The source here doesn't support IE. Refer this answer for cross-browser support. Also createEvent is deprecated (MDN Docs for reference).
JQUERY:
$("#elem").keyup();
$("#elem").trigger('keyup');
Change events fire only when the input blurs, according to the MDN Docs.
Also, you should have got Uncaught TypeError: element.keyup is not a function error in your console.
var elem = document.getElementById("data");
function triggerKeyUpEvent()
{
var e = document.createEvent('HTMLEvents');
e.initEvent("keyup",false,true);
elem.dispatchEvent(e);
}
function perform()
{
console.log("KeyUp");
}
function add()
{
elem.value = String.fromCharCode(Math.random().toFixed(2)*100).repeat(5);
elem.onkeyup();
triggerKeyUpEvent();
}
<input id="data" onkeyup="perform()">
<button id="add" onclick="add()">Add Random Data</button>

To fix your JSFiddle update the following code:
var elem = document.getElementById("sim1");
function triggerKeyUpEvent() {
var e = document.createEvent('HTMLEvents');
e.initEvent("keyup",false,true);
elem.dispatchEvent(e);
}
function add() {
var sim1=document.getElementById("sim1").value;
document.getElementById("box1").value = sim1;
elem.onkeyup();
triggerKeyUpEvent()
}
by replacing the line elem.dispatchEvent(e) with box1.dispatchEvent(e)
And the line elem.onkeyup() with box1.onkeyup()
Lastly, it would seem that you don't need to call triggerKeyUpEvent as when I removed it, it still works.
Here's the udpated JSFiddle

Truncate Text - Show full text in Tooltip on mouseover

Currently I output a text from my database with the following code:
if ($data["own_subject"][$x]!="") { <td><p>".$data["own_subject"][0]."</p></td> }
I found a JS function to only show the first 10 characters and once someone does a mouseover the whole text appears. This function is working with the following code and it is working fine:
<script>
var lengthText = 10;
var text = $('p').text();
var shortText = $.trim(text).substring(0, lengthText).split(" ").slice(0, -1).join(" ") + "...";
$('p').text(shortText);
$('p').hover(function () {
$(this).text(text);
}, function () {
$(this).text(shortText);
});
</script>
Now I do not like the style of the outcome and I would like to show the full text in some kind of a tooltip. I am using bootstrap and bootstrap has this function. My problem is now that I do not know how I need to change my JS code to show the full length text in a tooltip. Can someone help me out and show me how I need to change my current code?
I would really appreciate your any help.
Thanks,
Chris

Add your original text in title attribute of p tag which I hope you are already doing.
Add data-toggle="tooltip" data-placement="top" attributes to p tag
Ex
<p data-toggle="tooltip" data-placement="top" title='".$data["own_subject"][0]."'>".$data["own_subject"][0]."</p>
Initiate as $('[data-toggle="tooltip"]').tooltip() Also you can now remove $('p').hover event.
Ex
$(function () {
$('[data-toggle="tooltip"]').tooltip()
})

You can do this using tooltip of bootstrap
<button id="test" type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom">
Tooltip on Bottom
$(function() {
var lengthText = 10;
var text = $('#test').text();
var shortText = $.trim(text).substring(0, lengthText).split(" ").slice(0, -1).join(" ") + "...";
$('#test').prop("title", text);
$('#test').text(shortText);
$('[data-toggle="tooltip"]').tooltip();
})
http://plnkr.co/edit/5hHRjULpDlMP3cYhHhU4?p=preview

Try simple html tooltip using title.
if ($data["own_subject"][$x]!="") { <td><p title='".$data["own_subject"][0]."'>".$data["own_subject"][0]."</p></td> }

You can add title attribute with real text to you element and call bootstraps tooltip init over that elements, also you need to remove current hover handler from your script
$('p').text(shortText);
// Add title with real text to your element
$('p').attr('title', text);
// And all in document ready bootstrap tooltip init for your short text tags
$( document ).ready(function() {
$('p').tooltip();
});
check more about boostrap tolltip here: http://www.w3schools.com/bootstrap/bootstrap_ref_js_tooltip.asp

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.