Creates a basic button.
By default, the button renders the contents of its direct children (i.e. it has a single unnamed <slot>).
Subclasses can override this by overriding render.
Optionaloptions: ButtonOptionsWhether the button is disabled.
When disabled, the button cannot be clicked.
The volume level of the player.
Protected Readonly_Protected Readonly_ProtectedhandleHandle a button click.
By default, this does nothing. Subclasses can override this method to add behavior to the button.
Synchronizes property values when attributes change.
Specifically, when an attribute is set, the corresponding property is set.
You should rarely need to implement this callback. If this method is
overridden, super.attributeChangedCallback(name, _old, value) must be
called.
See responding to attribute changes
on MDN for more information about the attributeChangedCallback.
Invoked 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 button that toggles whether audio is muted or not.
Custom Element
<theoplayer-mute-button>Attribute
volume-level(readonly) - The volume level of the player. Can be "off" (muted), "low" (volume < 50%) or "high" (volume >= 50%).