fix: resource drawer opening behind dialog in chat mode (#8328)

* fix: resource drawer opening behind dialog in chat mode

Integrate Modal into the Disposable z-index stacking system so drawers
opened from within a modal (e.g. "Add a new resource") correctly appear
above the dialog instead of behind it.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: resource drawer opening behind dialog in chat mode

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* refactor: simplify minZIndex tracking by removing unnecessary refcount

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix: use map-based minZIndex tracking and conditional chat elevation

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix: use plain object instead of Map for reactive minZIndex tracking

$state(new Map()) is not deeply reactive in Svelte 5 — only plain
objects and arrays are proxied. Replaced with Record<string, number>
so that property assignments properly trigger $derived updates.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
centdix
2026-03-13 21:33:16 +01:00
committed by GitHub
parent fb12b31df0
commit 9d2c439e2a
2 changed files with 118 additions and 60 deletions
@@ -1,5 +1,16 @@
<script lang="ts" module>
export let openedDrawers: { val: string[] } = $state({ val: [] })
// When a disposable with minZIndex is open, all disposables use that as
// their z-index base so that overlays opened on top (e.g. a Drawer from
// inside a Modal) stack correctly above it.
// We track per-id entries so concurrent modals don't clobber each other
// (closing one must not reset the base while another is still open).
let minZIndexEntries: Record<string, number> = $state({})
let activeMinZIndex = $derived.by(() => {
const values = Object.values(minZIndexEntries)
return values.length > 0 ? Math.max(...values) : 0
})
</script>
<script lang="ts">
@@ -11,6 +22,11 @@
id?: any
preventEscape?: boolean
initialOffset?: number
/** Minimum z-index base for this overlay. While any disposable with a
* minZIndex is open, all disposables use that as their base so that
* subsequent overlays stack above it (e.g. zIndexes.aiChat + 1 for
* modals that need to render above the AI chat panel). */
minZIndex?: number
children?: import('svelte').Snippet<[any]>
onOpen?: () => void
onClose?: () => void
@@ -21,13 +37,17 @@
id = (Math.random() + 1).toString(36).substring(10),
preventEscape = false,
initialOffset = 0,
minZIndex = 0,
children,
onOpen,
onClose
}: Props = $props()
let offset = $state(untrack(() => initialOffset))
let zIndex = $derived(zIndexes.disposables + offset)
// Note: when a Modal with minZIndex is open, all disposables (including
// already-open Drawers) are elevated. This is acceptable — relative
// stacking order is preserved by the per-instance offset.
let zIndex = $derived(Math.max(zIndexes.disposables, activeMinZIndex) + offset)
export function toggleDrawer() {
if (!open) {
@@ -44,6 +64,9 @@
}
openedDrawers.val.push(id)
offset = initialOffset + openedDrawers.val.length
if (minZIndex > 0) {
minZIndexEntries[id] = minZIndex
}
}
export function closeDrawer() {
@@ -51,6 +74,9 @@
offset = initialOffset
if (openedDrawers.val.includes(id)) {
openedDrawers.val = openedDrawers.val.filter((drawer) => drawer !== id)
if (minZIndex > 0) {
delete minZIndexEntries[id]
}
}
}
@@ -89,6 +115,9 @@
if (open) {
openedDrawers.val.push(untrack(() => id))
offset = untrack(() => initialOffset) + openedDrawers.val.length
if (minZIndex > 0) {
minZIndexEntries[untrack(() => id)] = minZIndex
}
}
let wasEverOpen = false
@@ -2,11 +2,14 @@
import { createBubbler, stopPropagation } from 'svelte/legacy'
const bubble = createBubbler()
import { createEventDispatcher } from 'svelte'
import { createEventDispatcher, untrack } from 'svelte'
import { fade } from 'svelte/transition'
import Button from '../button/Button.svelte'
import { twMerge } from 'tailwind-merge'
import CloseButton from '../CloseButton.svelte'
import Disposable from '../drawer/Disposable.svelte'
import { zIndexes } from '$lib/zIndexes'
import { chatState } from '$lib/components/copilot/chat/sharedChatState.svelte'
interface Props {
title: string
@@ -28,12 +31,28 @@
cancelText = undefined,
kind = 'button',
settings,
children,
children: children_render,
actions
}: Props = $props()
const dispatch = createEventDispatcher()
let disposable: Disposable | undefined = $state(undefined)
// Only elevate above the AI chat panel when it's actually open —
// when chat is closed there's nothing at z-index 1200 to stack above.
const minZIndex = $derived(chatState.size > 0 ? zIndexes.aiChat + 1 : 0)
// Both `bind:open` and this $effect are needed: bind:open syncs the
// boolean, while the effect calls openDrawer/closeDrawer to register
// the disposable in the stacking system (same pattern as Drawer.svelte).
$effect(() => {
open
untrack(() => {
open ? disposable?.openDrawer() : disposable?.closeDrawer()
})
})
function onKeyDown(event: KeyboardEvent) {
if (open) {
switch (event.key) {
@@ -58,70 +77,80 @@
<svelte:window onkeydowncapture={onKeyDown} />
{#if open}
<!-- svelte-ignore a11y_click_events_have_key_events -->
<!-- svelte-ignore a11y_no_noninteractive_element_interactions -->
<div
onclick={() => (open = false)}
transition:fadeFast|local
class={'fixed top-0 bottom-0 left-0 right-0 z-[9999]'}
role="dialog"
tabindex="-1"
>
<div
class={twMerge(
'fixed inset-0 bg-gray-500 bg-opacity-75 transition-opacity',
open ? 'ease-out duration-300 opacity-100' : 'ease-in duration-200 opacity-0'
)}
></div>
<div class="fixed inset-0 z-10 overflow-y-auto">
<div class="flex min-h-full items-center justify-center p-4">
<!-- svelte-ignore a11y_no_static_element_interactions -->
<Disposable bind:open bind:this={disposable} preventEscape {minZIndex}>
{#snippet children({ zIndex })}
{#if open}
<!-- svelte-ignore a11y_click_events_have_key_events -->
<!-- svelte-ignore a11y_no_noninteractive_element_interactions -->
<div
onclick={() => (open = false)}
transition:fadeFast|local
class="fixed top-0 bottom-0 left-0 right-0"
style="z-index: {zIndex}"
role="dialog"
tabindex="-1"
>
<div
onclick={stopPropagation(bubble('click'))}
class={twMerge(
'relative transform overflow-hidden rounded-md bg-surface px-4 pt-5 pb-4 text-left shadow-xl transition-all sm:my-8 sm:w-full sm:max-w-lg sm:p-6',
c,
'fixed inset-0 bg-gray-500 bg-opacity-75 transition-opacity',
open
? 'ease-out duration-300 opacity-100 translate-y-0 sm:scale-100'
: 'ease-in duration-200 opacity-0 translate-y-4 sm:translate-y-0 sm:scale-95'
? 'ease-out duration-300 opacity-100'
: 'ease-in duration-200 opacity-0'
)}
{style}
>
{#if kind == 'X'}
<div class="absolute top-4 right-4"><CloseButton on:close={() => (open = false)} /></div
>
{/if}
<div class="flex">
<div class="text-left flex-1">
<div class="flex flex-row items-center justify-between">
<h3 class="text-emphasis text-lg font-semibold">{title}</h3>
{@render settings?.()}
</div>
></div>
<div class="mt-4 text-sm text-primary">
{@render children?.()}
<div class="fixed inset-0 z-10 overflow-y-auto">
<div class="flex min-h-full items-center justify-center p-4">
<!-- svelte-ignore a11y_no_static_element_interactions -->
<div
onclick={stopPropagation(bubble('click'))}
class={twMerge(
'relative transform overflow-hidden rounded-md bg-surface px-4 pt-5 pb-4 text-left shadow-xl transition-all sm:my-8 sm:w-full sm:max-w-lg sm:p-6',
c,
open
? 'ease-out duration-300 opacity-100 translate-y-0 sm:scale-100'
: 'ease-in duration-200 opacity-0 translate-y-4 sm:translate-y-0 sm:scale-95'
)}
{style}
>
{#if kind == 'X'}
<div class="absolute top-4 right-4"
><CloseButton on:close={() => (open = false)} /></div
>
{/if}
<div class="flex">
<div class="text-left flex-1">
<div class="flex flex-row items-center justify-between">
<h3 class="text-emphasis text-lg font-semibold">{title}</h3>
{@render settings?.()}
</div>
<div class="mt-4 text-sm text-primary">
{@render children_render?.()}
</div>
</div>
</div>
{#if kind == 'button'}
<div
class="flex items-center space-x-2 flex-row-reverse space-x-reverse mt-4"
>
{@render actions?.()}
<Button
on:click={() => {
dispatch('canceled')
open = false
}}
color="light"
size="sm"
>
{cancelText ?? 'Cancel'}
</Button>
</div>
{/if}
</div>
</div>
{#if kind == 'button'}
<div class="flex items-center space-x-2 flex-row-reverse space-x-reverse mt-4">
{@render actions?.()}
<Button
on:click={() => {
dispatch('canceled')
open = false
}}
color="light"
size="sm"
>
{cancelText ?? 'Cancel'}
</Button>
</div>
{/if}
</div>
</div>
</div>
</div>
{/if}
{/if}
{/snippet}
</Disposable>