Prevent autofocus of contents in Material UI's date input - css

i am trying to figure out how to prevent the contents of Material UI's date input from being automatically focused when inputing characters. For some reason, the focus is on whichever field I am typing in. For example if I am typing the year portion of the date, all four digits will be highlighted which means when I backspace, even if I mean to just clear one digit, all digits would be cleared. Please see image below this paragraph of what I mean.
Like I said, I think that behavior of clearing all digits with a single backspace is due to all digits of whichever current portion of the date being selected all at one.
I have tried to use the css ways like setting userSelect to 'none' for the input, as well as setting tabIndex to -1. That doesn't seem to do anything. Please see my code below:
<TextField
tabindex="-1"
className={`${classes.formInput} ${classes.dateInput}`}
classes={{ root: classes.dateInput}}
value={date}
name="date"
onChange={e => setFormField(e.target.getAttribute('name'), e.target.value)}
type="date"
required
label="Date"
variant="standard" />
Any help is appreciated. Thanks!

Looks like it is not possible to change this since the TextField is build on top of the native input element. If you take a look at the Mozilla docs about the native input you will see that this is currently the only way to input on type="date"
You can use the DatePicker from the MUI library this input does allow you to "backspace".
I hope this helps you!

Related

Select a label with CSS

I already found threads about this topic like these:
How to hide <label for=""> CSS
How to select label for="XYZ" in CSS?
So I thought it's going to be easy, but for now I had no success.
The label I try to reach is this one:
Inside of code snippets I tried the following:
label[for=payment_method_angelleye_ppcp]
.label[for=payment_method_angelleye_ppcp]
label[for="payment_method_angelleye_ppcp"]
.label[for="payment_method_angelleye_ppcp"]
After a couple of Google sessions, I wasn't able to find any other way of writing. It also seems that you don't set a "." in front of it for this case, but I also tried it, of course.
I believe label[for="name"] is the correct format in general...
But it seems something is missing. Inside the label there is a text and an image, but I don't assume that this plays a role in selecting the label?
I put one in CSS and 1 in javascript
document.querySelector('label[for="ABC"]').style.color = 'blue';
label[for="XYZ"] {
color: red
}
<label for="XYZ">XYZ: </label>
<input id="XYZ">
<label for="ABC">XYZ: </label>
<input id="ABC">
Pierre's answer is good, I just want to clarify that label is an HTML element. Unless you have a CSS class "label", you would not be adding a period in front of the selector in CSS.
You're correct, the content (images and text) inside of a label will not affect the selector we're trying to use but there may be other CSS interfering with what you're trying to do.

How can I place the results from NgbTypeahead into a DIV container, rather than a dynamic dropdown?

I'm using NgbTypeahead, and it's working properly. But instead of creating a dynamic popup window with the results, I'd like to show the results in a list in DIV.
I think I'm supposed to use the container property to do this, but I've this:
<input #quickSearch id="typeahead-template" type="text" class="form-control popup-search"
[ngbTypeahead]="searchWithTemplate" [resultTemplate]="searchResultsTemplate"
(selectItem)="searchResultSelected($event)" [container]="resultsContainer"
[inputFormatter]="formatter" [placement]="'bottom-left'"
[placeholder]="isSearchInitialized ? 'Search for...' : 'Please wait... initializing quick search...'"
[disabled]="!isSearchInitialized"
style="width:100%">
and it doesn't work. Help appreciated.
Maybe I'm stating the obvious but the docs say it only supports body
A selector specifying the element the tooltip should be appended to. Currently only supports "body".

States for input field when typing

Is there some sort of state(like :hover, :focus, :active) for when typing in an input field only using CSS or does this have to be done in another way like JavaScript?
What I want to achieve is to only display a character counter when someone is typing.
There is no state in css when typing in an input field.
Please see the link for more info about pseudo classes
https://www.w3schools.com/css/css_pseudo_classes.asp
The state for input when typing is possible in javascript.
Please see the code below.
document.getElementById("demo").addEventListener("keypress", myFunction);
function myFunction() {
alert("Someone is typing");
}
<input type="text" id="demo">
You can see more info about onkeypress in this link
https://www.w3schools.com/jsref/event_onkeypress.asp
Hope this helps.

Fill width with two divs, one of which might be absent

I'm trying to create a very basic chat system, part of which will be the entry box for lines of chat. If the user is logged in, that's all I need; but if the user is not logged in, I want an additional text box to allow them to enter their name.
I have the following HTML (although of course it can be altered):
<form>
<input type="text" placeholder="Name?" name="name" id="name"> <!-- This line may be absent -->
<input type="text" placeholder="What do you want to say?" name="say" id="say">
</form>
Is it possible to style this with CSS so that #name and #say together fill the whole width of the form, with #say taking all the width if #name is absent?
(The backend is Ruby on Rails; I have javascript available, so can use a JS solution, but would prefer pure CSS if possible)
For a simple, all-CSS solution, try the first-child pseudo-selector to overide a default half-width when #say is the first element inside of the form:
#name, #say{width:100px}
#say:first-child{width:200px}
This works perfectly fine with your simple markup structure. (I've tested it)
With whichever of the two languages you'll be using to determine whether the user is logged in, create a conditional statement that adds a html class to the input field that alters it's width say .input-full and .input-partial
IF user is logged in
SET class to input-full
ELSE
SET class to input-partial
ENDIF
sorry for the psedo code, then have appropriate CSS for each.
oooh, didn't see the CSS only, sorry. Without CSS3 and a disregard for IE I don't think you can do this with straight CSS.

What disadvantages are there to the <button> tag?

I started using a diagnostic css stylesheet, e.g.
http://snipplr.com/view/6770/css-diagnostics--highlight-deprecated-html-with-css--more/
One of the suggested rules highlights input tags with the type submit, with the recommendation to use <button> as a more semantic solution. What are the advantages or disadvantages of <button> with type submit (such as with browser compatibility) that you have run across?
Just to be clear, I understand the spec of <button>, it has a defined start and end, it can contain various elements, whereas input is a singlet and can't contain stuff. What I want to know essentially is whether it's broken or not. I'd like to know how usable button is at the current time. The first answer below does seem to imply that it is broken for uses except outside of forms, unfortunately.
Edit for 2015
The landscape has changed! I have 6 more years experience of dealing with button now, and browsers have somewhat moved on from IE6 and IE7. So I'll add an answer that details what I found out and what I suggest.
When using <button> always specify the type, since browsers default to different types.
This will work consistently across all browser:
<button type="submit">...</button>
<button type="button">...</button>
This way you gain all of <button>'s goodness, no downsides.
Answering from an ASP.NET perspective.
I was excited when I found this question and some code for a ModernButton control, which, in the end, is a <button> control.
So I started adding all sorts of these buttons, decorated with <img /> tags inside of them to make them stand out. And it all worked great... in Firefox, and Chrome.
Then I tried IE6 and got the "a potentially dangerous Request.Form value was detected", because IE6 submits the html inside of the button, which, in my case, has html tags in it. I don't want to disable the validateRequest flag, because I like this added bit of data validation.
So then I wrote some javascript to disable that button before the submit occurred. Worked great in a test page, with one button, but when I tried it out on a real page, that had other <button> tags, it blew up again. Because IE6 submits ALL of the buttons' html. So now I have all sorts of code to disable buttons before submit.
Same problems with IE7. IE8 thankfully has this fixed.
Yikes. I'd recommend not going down this road IF you are using ASP.NET.
Update:
I found a library out there that looks promising to fix this.
If you use the ie8.js script from this library: http://code.google.com/p/ie7-js/
It might work out just fine. The IE8.js brings IE5-7 up to speed with IE8 with the button tag. It makes the submitted value the real value and only one button gets submitted.
Everything you need to know: W3Schools <button> Tag
The tag is supported in all major browsers.
Important: If you use the button element in an HTML form, different browsers will submit different values. Internet Explorer will submit the text between the <button> and </button> tags, while other browsers will submit the content of the value attribute. Use the input element to create buttons in an HTML form.
Pros:
The display label does not have to be the same as the submitted value. Great for i18n and "Delete this row"
You can include markup such as <em> and <img>
Cons:
Some versions of MSIE default to type="button" instead of type="submit" so you have to be explicit
Some versions of MSIE will treat all <button>s as successful so you can't tell which one was clicked in a multi-submit button form
Some versions of MSIE will submit the display text instead of the real value
From https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button:
IE7 has a bug where when submitting a form with Click me, the POST data sent will result in myButton=Click me instead of myButton=foo.
IE6 has an even worse bug where submitting a form through a button will submit ALL buttons of the form, with the same bug as IE7.
This bug has been fixed in IE8.
An important quirk to be aware of: In a form that contains a <button/> element, IE6 and IE7 will not submit the form when the <button/> element is clicked. Other browsers, on the other hand, will submit the form.
In contrast, no browsers will submit the form when <input type="button"/> or <button type="button"/> elements are clicked. And naturally, all browsers will submit the form when <input type="submit"/> or <button type="submit"/> elements are clicked.
As #orip's answer says, to get consistent submit behavior across browsers, always use <button type="button" /> or <button type="submit" /> inside a <form/> element. Never leave out the type attribute.
I've had some experience with the quirks of <button> now, 6 years later, so here are my suggestions:
If you're still supporting IE6 or IE7, be very careful with button, the behavior is very buggy with those browsers, in some cases submitting the innerHtml instead of value='whatever' and all button values instead of just one and wonky behavior like that. So test thoroughly or avoid for those browser's sake.
Otherwise: If you're still supporting IE8, <a href='http://example.com'><button></button></a> doesn't work well, and probably anything else where you nest a button inside a clickable element. So watch out for that.
Otherwise: If you're using a <button> mainly as an element to click for your javascript, and it's outside of a form, make it <button type='button'> and you'll probably be just fine!
Otherwise: If you're using <button> in a form, be wary that the default type of <button> is actually <button type='submit'> in (most) cases, so be explicit with your type and your value, like: <button type='submit' value='1'>Search</button>.
Note that: Using a button-mimic class, like Bootstrap's .btn allows you to just make things like <div> or <a> or even <button> look exactly the way you want it to, and in the case of <a> have a more useful fallback behavior. Not a bad option.
TLDR; Ok to use if you don't care about ancient browsers, but Bootstrap provides even more robust css visually similar alternatives worth looking into.
Is it broken or not:
As usual, the answer is "it works fine in all major browsers, but has the following quirks in IE." I don't think it will be a problem for you though.
The <button> tag is supported by all the major browsers. The only support problem lies in what Internet Explorer will submit upon pressing a button.
The major browsers will submit the content of the value attribute. Internet exploter will submit the text between the <button> and </button> tags, while also submitting the value of every other one in the form, instead just the one you clicked.
For your purposes, just cleaning up old HTML, this shouldn't be a problem.
Sources:
http://www.peterbe.com/plog/button-tag-in-IE
http://www.w3schools.com/tags/default.asp
Here's a site that explains the differences:
http://www.javascriptkit.com/howto/button.shtml
Basically, the input tag allows just text (although you can use a background image) while the button allows you to add images, tables, divs and whatever else. Also, it doesn't require it to be nested within a form tag.
You might also run into these problems:
jQuery cannot target the button (not jQuery's fault, though): <button> in IE7
Multiple request variables if there are >1 <button>s: http://www.peterbe.com/plog/button-tag-in-IE
Another thing is related to styling it using the sliding-door technique: you need to insert another tag e.g. <span> to make it work.
as far as I am concerned the difference between submit and button tags is this:
gives you the option to have different text displayed than the element's value
Let's say you have a list of products then next to each product you want a button to add it to the customer's cart:
product1 : <add to cart>
product2 : <add to cart>
product3 : <add to cart>
then you could do this:
<button name="buy" type="submit" value="product2"> add to cart </button>
Now the problem is that IE will send the form with value="add to cart" instead of value="product2"
The easiest way to workaroound this issue is by adding onclick="this.value='product2'"
So this:
<button name="buy" type="submit" value="product2" onclick="this.value='product2'"> add to cart </button>
will do the trick on all major browsers - I have actually used this on a form with multiple buttons and works with Chrome Firefox and IE
Looks like the main reason to use <button> is to allow for CSS markup of that button and the ability to style the button with images: (see here: http://www.javascriptkit.com/howto/button.shtml)
However, I think the more adopted approach I've seen in (X)HTML + CSS is to use a div and style it completely with images and :hover pseudo-classes (simulating button downpress... can't add more than one link per answer, so just google "div button" you'll see lots of examples of this), and using javascript to do form submission or AJAX call... this also makes even more sense if you don't use HTML forms, and do all submissions with AJAX.

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