Develop Reference

Input / Change / Keyup / focus event not fired

I have this function:
showReview: function(){
var main = document.getElementById("main");
var ins = main.getElementsByTagName("INPUT");
var rev = $("reviewcontent").is(":hidden");
for (var i = 0; i<ins.length; i++){
$(ins[i]).on('show input keyup focus change', this.getInVals());
console.log("Invals update from input");
}
if(!rev){
this.addReview();
}
}
The events are fired when first loading the page but not when changing the input or focus on another input again. I have no clue why. I thought about that it only listens to the last input of the main but that is not the case.

$(ins[i]).on('show input keyup focus change', this.getInVals());
remove getInVals call. try change getInVals() to getInVals
$(ins[i]).on('show input keyup focus change', this.getInVals);

I don't get what you're trying to do or to say, but I was doing something similar, you can have it as an example if it helps.
$('.look').on('keyup change', function () {
var value = $(this).val().toLowerCase();
var what_place = $(this).parents('.collapse').find('.col-sm-0');
$(what_place).each(function(){
$(this).css({"display": "block"});
if(value == ''){
$(this).css({"display": "block"});
}
else if($(this).find('h5').text().toLowerCase().indexOf(value) < 0){
$(this).css({"display": "none"});
}
});
});

Javascript: Best event to use to call function for any change in text area?

I want a function to be called whenever there is any change within my text area, i.e. char typed, removed, cut, pasted etc.
Currently I am using:
onkeyup || onmousemove = function();
This seems to only be calling onmousemove, what can I use to call my function on ANY change to the textarea.
I am creating this JS as a string to add it as a parameter to the creation of a text_area using codeigniteras described here at form_input section
e.g:
$js= 'onkeyup || onmousemove = "function()"';
echo text_area('name', " ", $js);

There's no way to combine multiple HTML attribute assignment, you have to do them separately. Try:
text_input('name', ' ', 'onkeyup="function()" onmousemove="function()"');

try this :
$('#element').on('keyup keypress blur change', function() {
...
});

Just give textarea an id say myId and bind events to it to trigger handler.
var element = document.getElementById("myId");
var myEvents = "oninput onchange onkeyup onpaste".split(" ");
var handler = function (e) {
};
for (var i=0, len = myEvents.length; i < len; i++) {
element.addEventListener(myEvents[i], handler, false);
}

Try something like below
Example
<textarea id='textarea1'>data</textarea>
//....................
$("textarea").bind('input propertychange', function(){
alert($(this).val());
});
Note: Use jquery plugin
DEMO
If you want to prevent simultaneous triggers then use the below code
<textarea id="textarea"></textarea>
//.......
var text = "";
$("#textarea").on("change keyup paste", function() {
var Val = $(this).val();
if(Val == text) {
return; //prevent multiple simultaneous triggers
}
text = Val;
alert("changed!");
});
DEMO2

Jquery: Executing a function on keypress on google.com

I am trying to capture the search query from google.com when the "enter" key is pressed.
I am using the following code to test that the event is actually being triggered:
$(document).keypress(function(e) {
if(e.which == 13) {
alert('You pressed enter!');
}
});
This does not work when the focus is in the query box, but works fine otherwise I assume this is because an event is not being bubbled up by the auto-complete JS? Any ideas what might be happening, and how I can get the keypress event to fire when the focus is on the query box, which is the case when a query is being entered?

You can try $(window).on('keyup', function() {}); of you can bind the same handler to the search input.

Use "hashchange" event
It is triggered when triggered "auto-complete JS"
$(window).on("hashchange", function() {
var query = getKeywordsFromUrl(document.location.href);
} );
function getKeywordsFromUrl(href) {
var reStr = "google.com/search.*[&?]q=(.*?)(&.*)?$";
var rx = new RegExp(reStr, 'm');
if (rx.test(href)) {
var parts = rx.exec(href);
if (parts[1]) {
var terms = decodeURI(parts[1]).split("+");
return terms;
}
}
return null;
}

to make that input text field holds focus and not to lose when I click on something else (to focus always be on input with id="input_message")?

I made simple web chat, bubles ( messages) above one text field (input message) and send button. How to make that input text field holds focus and not to lose when I click on something else (to focus always be on input with id="input_message") ?

var el = document.getElementById('input_message');
el.focus();
el.onblur = function () {
setTimeout(function () {
el.focus();
});
};
Here's the fiddle: http://jsfiddle.net/MwaNM/

Here's a dirty hack.
<input type="text" id="input_message" />
<script type="text/javascript">
with (document.getElementById('input_message')) {
onblur = function(e) {
var elm = e.target;
setTimeout(function(){elm.focus()});
}
onkeydown = function(e) {
var key = e.which || e.keyCode;
if (key == 9) e.preventDefault();
// code for tab is 9
}
}
</script>

var inputElement = document.getElementById("input_message");
inputElement.focus();
inputElement.addEventListener("blur", function(event){
inputElement.focus();
});
http://jsfiddle.net/653w1mpv/

Invoke a function after right click paste in jQuery

I know we can use bind paste event as below:
$('#id').bind('paste', function(e) {
alert('pasting!')
});
But the problem is, that it will call before the pasted text paste. I want a function to be triggered after the right click -> paste text pasted on the input field, so that I can access the pasted value inside the event handler function.
.change() event also doesn't help. Currently I use .keyup() event, because I need to show the remaining characters count while typing in that input field.

Kind of a hack, but:
$("#id").bind('paste', function(e) {
var ctl = $(this);
setTimeout(function() {
//Do whatever you want to $(ctl) here....
}, 100);
});

Why not use the "input" event?
$("#id").bind('input', function(e) {
var $this = $(this);
console.log($this.val());
});

This will stop user from any pasting, coping or cutting with the keyboard:
$("#myField").keydown(function(event) {
var forbiddenKeys = new Array('c', 'x', 'v');
var keyCode = (event.keyCode) ? event.keyCode : event.which;
var isCtrl;
isCtrl = event.ctrlKey
if (isCtrl) {
for (i = 0; i < forbiddenKeys.length; i++) {
if (forbiddenKeys[i] == String.fromCharCode(keyCode).toLowerCase()) {
return false;
}
}
}
return true;
});
This one will do the same for the mouse events:
$("#myField").bind("cut copy paste",function(event) {
event.preventDefault();
});
Even though the above one will not prevent right clicks, the user will not be able to paste, cut or copy from that field.
To use it after the event, like you wondered on your question, you must use JavaScript Timing Event
setTimeout(function() {
// your code goes here
}, 10);

I had the same issue, I opted to replicate the paste action through javascript and use that output instead:
var getPostPasteText = function (element, pastedData) {
// get the highlighted text (if any) from the element
var selection = getSelection(element);
var selectionStart = selection.start;
var selectionEnd = selection.end;
// figure out what text is to the left and right of the highlighted text (if any)
var oldText = $(element).val();
var leftPiece = oldText.substr(0, selectionStart);
var rightPiece = oldText.substr(selectionEnd, oldText.length);
// compute what the new value of the element will be after the paste
// note behavior of paste is to REPLACE any highlighted text
return leftPiece + pastedData + rightPiece;
};
See IE's document.selection.createRange doesn't include leading or trailing blank lines for source of the getSelection function.

No need to bind :
$(document).on('keyup input', '#myID', function () {
//Do something
});