I need a text field with the following behavior:
When the field is rendered, the current contents are hidden with password style (******), but if the user tries to edit it, the field gets cleared and they see on clear text what they are typing (so the behaviour is not entirely equivalent to PasswordTextField).
Any idea on how to achieve this behavior?
Thank you!
I think you should use some JavaScript to turn the field readable when focus event is fired. Here you can find a simple script that does the magic:
https://www.w3schools.com/howto/howto_js_toggle_password.asp
UPDATE:
In order to get the required behavior try the following code in the page above:
<!DOCTYPE html>
<html>
<body>
Password: <input type="password" value="FakePSW" id="myInput" onfocus="myFunction()"><br><br>
<script>
function myFunction() {
var x = document.getElementById("myInput");
x.value = "";
if (x.type === "password") {
x.type = "text";
} else {
x.type = "password";
}
}
Related
I have question regarding the lit-html render function.
Currently I have the problem that sometimes the render function does not update the DOM.
My render function looks like this:
public renderLootbag = (_characterItems: Object): void => {
//some other code
const lootbagInventoryTemplate: TemplateResult[] = [];
for (let i: number = 0; i < numberOfInventorySpaces; i++) {
lootbagInventoryTemplate.push(html`
<section class="lootbag__inventoryItem">
//some other code
</section>
`)
};
const lootbagTemplate: TemplateResult = html`
//some other code
<section class="lootbag__inventory">${lootbagInventoryTemplate}
</section>
`;
console.log(lootbagInventoryTemplate);
render(lootbagTemplate, getLootbagContainer);
}
This function gets triggerd everytime I click on a button called "open Lootbag"
Now the problem is: if the value of the parameter in the renderLootbag() function changes, the DOM doesn´t get updated, eventhough the console.log(lootbagInventoryTemplate) shows me the new values ... :/.
img of the console.log
img of the dom
Note: in this case the Element with the class "lootbag__itemData" shouldn´t be filled with content.
Is there a way to completly force a new render?, I have already tried to empty my container with innerHTML and then call the render function but that didn´t work.
Thanks in advance
I had a similar problem with an Input that didnt update all the time.
The undelying problem was that i converted all inputs from the user to number and if the user typed some letters it would fall back to zero.
Since the values didn't change always (zero changed to zero), lit html wouldn't rerender.
The Solution was using a directive.
import { html, render, directive } from "lit-html";
const value = store.savedValueFromInput;
const forceWrite = directive((someValue) => (part) => {
part.setValue(someValue);
});
<input type="number" #change="${setValueFromInput}" .value="${forceWrite(value)}" />
That should force a re-render.
Best regards,
Tristan
<span id="continue" class="a-button a-button-span12 a-button-primary"><span class="a-button-inner"><input id="continue" tabindex="5" class="a-button-input" type="submit" aria-labelledby="continue-announce"><span id="continue-announce" class="a-button-text" aria-hidden="true">
Continue
</span></span></span>
Above the the HTML from part of a page, which has a 'Continue' button that i'm trying to click, using my script.
So, writing in Javascript, i'm trying to click this button. But nothing I have tried works.
My attempted answer is:
function() {
var goButton = document.getElementById("continue");
goButton.click();},
Why doesn't it work? Help me, please !
You have set the ID of both the span and the input field to "continue". ID's should be unique for a single element. When I enter your code in the browser's console it returns the following:
> var goButton = document.getElementById("continue");
< undefined
> goButton.valueOf()
< <span id="continue" class="a-button a-button-span12 a-button-primary">
You can see the span is the element being selected instead of the input submit button. You should rename either of the 2 elements so both have a unique ID and use that in your script.
Edit: OP mentioned the HTML can not be changed so instead of fixing the use of a not-unique ID this Javascript can be used:
function() {
var continueSpan = document.getElementById("continue");
var goButton = continueSpan.firstElementChild.firstElementChild;
goButton.click();}
I am fairly new to Javascript and have a basic question. I have an HTML form with first_name and last_name input fields. I have the following Javascript code in the header but after the code runs, the focus goes to the next field (last_name). Why is that and how do I correct it?
Thank you.
<script>
function validateForm()
{
valid = true;
//validate first name
if (document.contactform.first_name.value == "")
{
//alert user first name is blank
alert("You must enter a first name");
document.getElementById("first_name").focus();
return false;
}
return valid;
}
</script>
and the form field code is:
input type="text" name="first_name" id="first_name" maxlength="50" size="30" onBlur="validateForm()"
A fix for this is to add a slight delay.. like so:
setTimeout(function() {
document.getElementById('first_name').focus()
}, 10);
Here is your example with this fix in jsfiddle: http://jsfiddle.net/FgHrg/1/
It seems to be a common Firefox problem.. I don't know exactly why but it has something to do with Firefox loading the javascript before the DOM is fully loaded.. in otherwords getElementById('first_name') returns null. But adding the slight delay fixes this problem.
I'm currently using the html5 autofocus for a login form. I am looking for a function that will autofocus the username textbox only if empty, and if not empty to autofocus on the next textbox.
With the HTML below
<input name="username" value="a" autofocus="autofocus">
<input name="password" type="password">
You can do something like this with jQuery
var $username = $('[name="username"]');
var $password = $('[name="password"]');
if($username.val().trim().length > 0){
$password.focus();
}
Should be that simple. Make sure Javascript is at the bottom of the page or you can use $(document).ready() function to make sure Javascript is run after HTML is rendered.
More details based on additional information
<asp:TextBox ID="UserName" runat="server" autofocus="true" required="true"></asp:TextBox>
The reason it doesn't work for your case is because you don't have an attribute called "name". I think you probably should read a little bit about jQuery selector to understand why. If you use ID, then this is how you would do it.
var $username = $('#UserName');
var $password = $('#password');
if($username.val().trim().length > 0){
$password.focus();
}
Of course you now have to match the selector for password so it will actually select password input to set the focus on.
Searches the page for input fields, and forces the focus on the first empty one. We might want to restrict the fields to a given form, and possibly add textareas as well - I'll leave that up yo you though - nothing too hard.
var inputs = document.getElementsByTagName('input'),
i = -1, I = inputs.length,
curr;
for (; ++i < I;) {
curr = inputs[i];
if ( !curr.value.length ) {
curr.focus();
break;
}
}
I thought the HTML spec stated that buttons click in a form pass their value, and button "not clicked" did not get passed. Like check boxes... I always check for the button value and sometimes I'll do different processing depending on which button was used to submit..
I have started using AJAX (specifically jquery) to submit my form data - but the button data is NEVER passed - is there something I'm missing? is there soemthing I can do to pass that data?
simple code might look like this
<form id="frmPost" method="post" action="page.php" class="bbForm" >
<input type="text" name="heading" id="heading" />
<input type="submit" name="btnA" value="Process It!" />
<input type="submit" name="btnB" value="Re-rout it somewhere Else!" />
</form>
<script>
$( function() { //once the doc has loaded
//handle the forms
$( '.bbForm' ).live( 'submit', function() { // catch the form's submit event
$.ajax({ // create an AJAX call...
data: $( this ).serialize(), // get the form data
type: $( this ).attr( 'method' ), // GET or POST
url: $( this ).attr( 'action' ), // the file to call
success: function( response ) { // on success..
$('#ui-tabs-1').html( response );
}
});
return false; // cancel original event to prevent form submitting
});
});
</script>
On the processing page - ONLY the "heading" field appears, neither the btnA or btnB regardless of whichever is clicked...
if it can't be 'fixed' can someone explain why the Ajax call doesn't follow "standard" form behavior?
thx
I found this to be an interesting issue so I figured I would do a bit of digging into the jquery source code and api documentation.
My findings:
Your issue has nothing to do with an ajax call and everything to do with the $.serialize() function. It simply is not coded to return <input type="submit"> or even <button type="submit"> I tried both. There is a regex expression that is run against the set of elements in the form to be serialized and it arbitrarily excludes the submit button unfortunately.
jQuery source code (I modified for debugging purposes but everything is still semantically intact):
serialize: function() {
var data = jQuery.param( this.serializeArray() );
return data;
},
serializeArray: function() {
var elementMap = this.map(function(){
return this.elements ? jQuery.makeArray( this.elements ) : this;
});
var filtered = elementMap.filter(function(){
var regexTest1= rselectTextarea.test( this.nodeName );
var regexTest2 = rinput.test( this.type ); //input submit will fail here thus never serialized as part of the form
var output = this.name && !this.disabled &&
( this.checked || regexTest2|| regexTest2);
return output;
});
var output = filtered.map(function( i, elem ){
var val = jQuery( this ).val();
return val == null ?
null :
jQuery.isArray( val ) ?
jQuery.map( val, function( val, i ){
return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
}) :
{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
}).get();
return output;
}
Now examining the jQuery documentation, you meet all the requirements for it to behave as expected (http://api.jquery.com/serialize/):
Note: Only "successful controls" are serialized to the string. No submit button value is serialized since the form was not submitted using a button. For a form element's value to be included in the serialized string, the element must have a name attribute. Values from checkboxes and radio buttons (inputs of type "radio" or "checkbox") are included only if they are checked. Data from file select elements is not serialized.
the "successful controls link branches out to the W3 spec and you definitely nailed the expected behavior on the spec.
Short lame answer: I think it is teh broken! Report for bug fix!!!
I've run into a rather unusual issue with this. I'm working on a project and have two separate php pages where one has html on the page separate from the php code and one is echoing html from inside php code. When I use the .serialize on the one that has the separate html code it works correctly. It sends my submit button value in its ajax call to another php page. But in the one with the html echoed from the php script I try to do the same thing and get completely different results. It will send all of the other info in the form but not the value of the submit button. All I need it to do is send whether or not I pushed "Delete" or "Update". I'm not asking for help (violating the rules of asking for help on another persons post) but I thought this info might be helpful in figuring out where the break down is occurring. I'll be looking for a solution and will post back here if I figure anything out.