AbstractProtected Readonly_Whether the range is disabled.
When disabled, the slider value cannot be changed, and the slider thumb is hidden.
Whether the range is hidden.
Whether the range is inert.
When inert, the slider value cannot be changed, but the slider thumb is still visible.
The HTMLElement property inert reflects the value of the element's inert attribute. It is a boolean value that, when present, makes the browser "ignore" user input events for the element, including focus events and events from assistive technologies. The browser may also ignore page search and text selection in the element. This can be useful when building UIs such as modals where you would want to "trap" the focus inside the modal when it's visible.
The maximum allowed value.
The minimum allowed value.
The granularity at which the value can change.
If set to "any", the value can change with arbitrary precision.
The current value.
Protected_OptionaluseCachedWidth: booleanProtected AbstractgetThe value for the aria-label attribute of the <input type="range"> element.
Protected AbstractgetThe value for the aria-valuetext attribute of the <input type="range"> element.
ProtectedgetBuild the color gradient for the range bar. Creating an array so progress-bar can insert the buffered bar.
ProtectedgetProtectedhandleProtectedhandleProtectedrenderProtectedupdateInvoked when the component is added to the document's DOM.
In connectedCallback() you should setup tasks that should only occur when
the element is connected to the document. The most common of these is
adding event listeners to nodes external to the element, like a keydown
event handler added to the window.
connectedCallback() {
super.connectedCallback();
addEventListener('keydown', this._handleKeydown);
}
Typically, anything done in connectedCallback() should be undone when the
element is disconnected, in disconnectedCallback().
Invoked when the component is removed from the document's DOM.
This callback is the main signal to the element that it may no longer be
used. disconnectedCallback() should ensure that nothing is holding a
reference to the element (such as event listeners added to nodes external
to the element), so that it is free to be garbage collected.
disconnectedCallback() {
super.disconnectedCallback();
window.removeEventListener('keydown', this._handleKeydown);
}
An element may be re-connected after being disconnected.
ProtectedrenderInvoked on each update to perform rendering tasks. This method may return
any value renderable by lit-html's ChildPart - typically a
TemplateResult. Setting properties inside this method will not trigger
the element to update.
StaticstylesArray of styles to apply to the element. The styles should be defined
using the css tag function, via constructible stylesheets, or
imported from native CSS module scripts.
Note on Content Security Policy:
Element styles are implemented with <style> tags when the browser doesn't
support adopted StyleSheets. To use such <style> tags with the style-src
CSP directive, the style-src value must either include 'unsafe-inline' or
nonce-<base64-value> with <base64-value> replaced be a server-generated
nonce.
To provide a nonce to use on generated <style> elements, set
window.litNonce to a server-generated nonce in your page's HTML, before
loading application code:
<script>
// Generated and unique per request:
window.litNonce = 'a1b2c3d4';
</script>
A slider to select a value from a range.
Attribute
disabled- Whether the range is disabled. When disabled, the slider value cannot be changed, and the slider thumb is hidden.Attribute
inert- Whether the range is inert. When inert, the slider value cannot be changed, but the slider thumb is still visible.