budibase/packages/materialdesign-components/src/List/ListItem.svelte

115 lines
2.8 KiB
Svelte

<script>
import { onMount, getContext } from "svelte"
import { Radiobutton } from "../Radiobutton"
import { Checkbox } from "../Checkbox"
import ClassBuilder from "../ClassBuilder.js"
import { generate } from "shortid"
const cb = new ClassBuilder("list-item")
let _id
let listProps = null
let selectedItems
export let _bb
export let value = null
export let text = ""
export let secondaryText = ""
export let leadingIcon = ""
export let trailingIcon = ""
export let selected = false
export let disabled = false
export let dividerAfter = false
let role = "option"
onMount(() => {
_id = generate()
selectedItems = _bb.getContext("BBMD:list:selectItemStore")
listProps = _bb.getContext("BBMD:list:props")
let context = _bb.getContext("BBMD:list:context")
if (context === "menu") {
role = "menuitem"
}
})
function handleClick() {
let item = {
_id,
value,
text,
secondaryText,
selected,
disabled,
}
if (!disabled) {
if (
listProps.singleSelection ||
listProps.inputElement === "radiobutton"
) {
selectedItems.addSingleItem(item)
} else {
let idx = selectedItems.getItemIdx($selectedItems, _id)
if (idx > -1) {
selectedItems.removeItem(_id)
} else {
selectedItems.addItem(item)
}
}
}
}
$: if (listProps && !!listProps.inputElement) {
_bb.setContext("BBMD:input:context", "list-item")
}
$: isSelected =
$selectedItems && selectedItems.getItemIdx($selectedItems, _id) > -1
$: modifiers = {
selected: isSelected && (!listProps || !listProps.inputElement),
disabled,
}
$: props = { modifiers }
$: listItemClass = cb.build({ props })
$: useTwoLine =
listProps && listProps.variant === "two-line" && !!secondaryText
</script>
<li class={listItemClass} role="option" tabindex="0" on:click={handleClick}>
{#if leadingIcon}
<span class="mdc-list-item__graphic material-icons" aria-hidden="true">
{leadingIcon}
</span>
{/if}
<span class={cb.elem`text`}>
{#if useTwoLine}
<span class={cb.elem`primary-text`}>{text}</span>
<span class={cb.elem`secondary-text`}>{secondaryText}</span>
{:else}{text}{/if}
</span>
{#if listProps}
{#if listProps.inputElement === 'radiobutton'}
<Radiobutton checked={isSelected} {disabled} {_bb} />
{:else if listProps.inputElement === 'checkbox'}
<Checkbox checked={isSelected} {disabled} {_bb} />
{/if}
{:else if trailingIcon}
<!-- TODO: Adapt label to accept class prop to handle this. Context is insufficient -->
<span class="mdc-list-item__meta material-icons" aria-hidden="true">
{trailingIcon}
</span>
{/if}
</li>
{#if dividerAfter}
<li class="mdc-list-divider" role="separator" />
{/if}