Cross-Platform: Varied functionalities in disabled input fields (avoiding any direct replication)

My input HTML field is disabled, but I've noticed that in some browsers (such as Chrome, Edge, Internet Explorer, and Opera), it's still possible to select and copy the text. However, in Firefox, this functionality does not work.

To test this yourself, try running the following code in different browsers:

<input type="text" disabled value="is disabled">
<input type="text" readonly value="is read-only">

I came across information stating that disabled fields can be focused, disabled inputs are unusable and un-clickable, and read-only inputs cannot be modified but offer text copying abilities.

I have not found any information specifying that text from disabled inputs cannot be copied. Is there a standard behavior that some browsers are not adhering to, or do browsers have the option to allow copying of text from disabled inputs?

Is there a solution that would enable text from disabled input fields to be copied across all browsers?

Note: My application is developed using Angular and TypeScript languages.


It appears that Firefox behaves differently from other browsers. I have raised an issue on Bugzilla to determine if this is a deliberate design choice or a bug. I am currently awaiting a response.

Answer №1

To achieve the desired behavior, simply switch the attribute from disabled to readonly.

Avoid wasting time attempting to patch together a JavaScript solution, as it may be less reliable than dealing with the slight differences in browser behavior.

If you want your readonly fields to visually resemble disabled fields, it's quite simple to style an input with the readonly attribute. There's no need to alter functionality for appearance changes.

input[readonly] {
  background: #EEE;
  color: #666;
  border: solid 1px #CCC;
}
<input readonly value="I am readonly">

Answer №2

Attempting to utilize the user-select property within an input field proved ineffective in preventing text selection. Even enclosing it within a div with the style user-select: none did not yield desired results. It seems that this feature only functions on non-focusable elements such as divs and spans.

Nevertheless, implementing user-select: none appears to be the most reliable method for ensuring that users cannot copy text from the webpage across various browsers (assuming compatibility with user-select). Therefore, I recommend creating a component similar to the following:

<input  *ngIf="!isDisabled" value="model" />
<div *ngIf="isDisabled" style="user-select: none">{{model}}</div>

Note: The div element must be styled to resemble a disabled input field.

Answer №3

Disabling a form control is a common practice and can be done without any issues.

<input type="text" disabled readonly value="is disable">

or

<input type="text" disabled="disabled" readonly="readonly" value="is disable">

However, the behavior related to copying text after selecting it may not always be consistent.

A Different Approach Using JavaScript:

If you're looking for a way to toggle text selection ability, consider using select events or manipulating focus and blur events.

Styling with External CSS Sheet:

.preventSelection {user-select: none}  // IE 10+

W3Schools: user-select:

Simple Event Handler Solution:

function preventDisabledControlTextCopy(e)
{
    // do something

    if (e.target.disabled === true) {
        // Add "preventSelection" to e.target.className
        // or change focus elsewhere!
    } else {
        // Remove "preventSelection" from e.target.className
    }
}

// More code here

textBox.addEventListener("select", preventDisabledControlTextCopy, false);

It's always good to explore different options. While I've simplified some aspects, the key points have been highlighted (as learning tools like Stackoverflow are valuable). The implementation details are left to your discretion.

Considerations:

Using a combination of CSS and JavaScript to toggle visibility: hidden (IE 4+) or display: none (IE 8+) could offer a more versatile solution depending on your specific requirements and expertise level in working with HTML, CSS, and JavaScript.

Dynamic forms provide an excellent platform to understand the interaction between HTML, CSS, and JavaScript.

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