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ui: Filesystem @mentions for Chat Form (#26715)

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* base : @-mention picker foundation - glob search, picker nav, highlight

* feat : @-mention file/folder picker and mention badges in message bubbles

* fix: Imports

* feat : wire the @-mention picker into the chat form

* fix: Bound the glob-search result cache key and prune stale entries
This commit is contained in:
Aleksander Grygier
2026-08-07 18:45:54 +02:00
committed by GitHub
parent 4cb22cd537
commit 23634783c5
40 changed files with 1839 additions and 399 deletions
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tools/ui/src/lib/components/app/chat/index.ts
+9 -20
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@@ -351,14 +351,14 @@ export { default as ChatFormPickerPopover } from './ChatForm/ChatFormPickers/Cha
* Generic scrollable list for picker popovers. Provides search input,
* scroll-into-view for keyboard navigation, loading skeletons, empty state,
* and optional footer. Uses Svelte 5 snippets for item/skeleton/footer rendering.
* Shared by ChatFormPickerMcpPrompts and ChatFormPickerMcpResources.
* Shared by ChatFormPickerMcpPrompts and ChatFormMentionPicker.
*/
export { default as ChatFormPickerList } from './ChatForm/ChatFormPickers/ChatFormPicker/ChatFormPickerList.svelte';
/**
* Generic button wrapper for picker list items. Provides consistent styling,
* hover/selected states, and data-picker-index attribute for scroll-into-view.
* Shared by ChatFormPickerMcpPrompts and ChatFormPickerMcpResources.
* Shared by ChatFormPickerMcpPrompts and ChatFormMentionPicker.
*/
export { default as ChatFormPickerListItem } from './ChatForm/ChatFormPickers/ChatFormPicker/ChatFormPickerListItem.svelte';
@@ -376,30 +376,19 @@ export { default as ChatFormPickerItemHeader } from './ChatForm/ChatFormPickers/
export { default as ChatFormPickerListItemSkeleton } from './ChatForm/ChatFormPickers/ChatFormPicker/ChatFormPickerListItemSkeleton.svelte';
/**
* **ChatFormPickerMcpResources** - MCP resource selection interface
*
* Floating picker for browsing and attaching MCP Server Resources.
* Triggered by typing `@` in the chat input.
* Loads resources from connected MCP servers and allows users to attach them to the chat context.
*
* **Features:**
* - Search/filter resources by name, title, description, or URI across all connected servers
* - Keyboard navigation (↑/↓ to navigate, Enter to select, Esc to close)
* - Shows attached state for already-attached resources
* - Loading states with skeleton placeholders
* - Server information header per resource for visual identification
*
* **Exported API:**
* - `handleKeydown(event): boolean` - Process keyboard events, returns true if handled
* `@`-triggered file/folder mention picker. Resolves `@<query>` in the chat
* input to a filesystem match via the server's `file_glob_search` built-in
* tool, scoped to the conversation cwd (or server home when unset).
* Selection splices a `[name](file:///<abs path>)` link into the input.
*/
export { default as ChatFormPickerMcpResources } from './ChatForm/ChatFormPickers/ChatFormPickerMcpResources.svelte';
export { default as ChatFormMentionPicker } from './ChatForm/ChatFormPickers/ChatFormMentionPicker.svelte';
/**
* **ChatFormPickers** - Chat input picker container
*
* Container component that hosts both MCP prompt and MCP resource pickers.
* Container component that hosts the MCP prompt and file mention pickers.
* Manages shared state, keyboard navigation, and coordination between the two
* picker interfaces. Used within ChatForm for `@`-triggered pickers.
* picker interfaces. Used within ChatForm.
*/
export { default as ChatFormPickers } from './ChatForm/ChatFormPickers/ChatFormPickers.svelte';