89 lines
2.1 KiB
Svelte
89 lines
2.1 KiB
Svelte
<script>
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import { getContext, onMount, createEventDispatcher } from "svelte"
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import Portal from "svelte-portal"
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export let title
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export let icon = ""
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const dispatch = createEventDispatcher()
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let selected = getContext("tab")
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let tab_internal
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let tabInfo
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const setTabInfo = () => {
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// If the tabs are being rendered inside a component which uses
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// a svelte transition to enter, then this initial getBoundingClientRect
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// will return an incorrect position.
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// We just need to get this off the main thread to fix this, by using
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// a 0ms timeout.
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setTimeout(() => {
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tabInfo = tab_internal?.getBoundingClientRect()
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if (tabInfo && $selected.title === title) {
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$selected.info = tabInfo
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}
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}, 0)
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}
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onMount(() => {
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setTabInfo()
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})
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//Ensure that the underline is in the correct location
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$: {
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if ($selected.title === title && tab_internal) {
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if ($selected.info?.left !== tab_internal.getBoundingClientRect().left) {
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$selected = {
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...$selected,
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info: tab_internal.getBoundingClientRect(),
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}
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}
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}
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}
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const onClick = () => {
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$selected = {
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...$selected,
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title,
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info: tab_internal.getBoundingClientRect(),
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}
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dispatch("click")
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}
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</script>
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<div
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bind:this={tab_internal}
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on:click={onClick}
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class:is-selected={$selected.title === title}
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class="spectrum-Tabs-item"
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class:emphasized={$selected.title === title && $selected.emphasized}
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tabindex="0"
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>
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{#if icon}
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<svg
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class="spectrum-Icon spectrum-Icon--sizeM"
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focusable="false"
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aria-hidden="true"
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aria-label="Folder"
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>
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<use xlink:href="#spectrum-icon-18-{icon}" />
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</svg>
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{/if}
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<span class="spectrum-Tabs-itemLabel">{title}</span>
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</div>
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{#if $selected.title === title}
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<Portal target=".spectrum-Tabs-content-{$selected.id}">
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<slot />
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</Portal>
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{/if}
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<style>
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.emphasized {
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color: var(--spectrum-global-color-blue-600);
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}
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.spectrum-Tabs-item {
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color: var(--spectrum-global-color-gray-600);
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}
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.spectrum-Tabs-item.is-selected {
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color: var(--spectrum-global-color-gray-900);
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}
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</style>
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