Files
opencode/packages/session-ui/src/v2/components/prompt-input/interaction.ts
T

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17 KiB
TypeScript

import { createEffect, on, type Accessor } from "solid-js"
import { createStore, reconcile } from "solid-js/store"
import { useFilteredList } from "@opencode-ai/ui/hooks"
import { createPromptInputV2Attachments, type PromptInputV2AttachmentConfig } from "./attachments"
import { createPromptInputV2Store, type PromptInputV2StoreInput } from "./store"
import type {
PromptInputV2Attachment,
PromptInputV2Comment,
PromptInputV2History,
PromptInputV2HistoryEntry,
PromptInputV2Option,
PromptInputV2PersistedState,
PromptInputV2Suggestion,
} from "./types"
import {
createPromptInputV2InteractionState,
transitionPromptInputV2,
type PromptInputV2InteractionCommand,
type PromptInputV2InteractionEvent,
} from "./machine"
export type PromptInputV2SelectControl = {
options: Accessor<PromptInputV2Option[]>
current: Accessor<string>
onSelect: (id: string) => void
}
export type PromptInputV2ViewConfig = {
placeholder?: Accessor<string>
add?: {
onAttach: () => void
}
agent?: PromptInputV2SelectControl
model?: PromptInputV2SelectControl
variant?: PromptInputV2SelectControl
submit: {
stopping: Accessor<boolean>
working?: Accessor<boolean>
onSubmit: () => void
onStop: () => void
}
shell?: {
onOpen: () => void
onClose: () => void
}
onKeyDown?: (event: KeyboardEvent) => void
onPaste?: (event: ClipboardEvent) => void
onDrop?: (event: DragEvent) => void
}
export function createPromptInputV2State() {
return createStore(createPromptInputV2InteractionState())
}
export function createPromptInputV2Controller(input: {
store: PromptInputV2StoreInput
state?: ReturnType<typeof createPromptInputV2State>
identity?: Accessor<unknown>
history?: PromptInputV2History
commands: Accessor<PromptInputV2Suggestion[]>
context: Accessor<PromptInputV2Suggestion[]>
searchContextFiles: (query: string) => PromptInputV2Suggestion[] | Promise<PromptInputV2Suggestion[]>
openAttachment?: (attachment: PromptInputV2Attachment) => void
openContext?: (key: string) => void
onContextRemove?: (item: PromptInputV2Comment) => void
onEditor?: (element: HTMLElement) => void
onSuggestionSelect?: (item: PromptInputV2Suggestion) => (() => void) | void
view: PromptInputV2ViewConfig
attachments?: PromptInputV2AttachmentConfig
}) {
let editor: HTMLElement | undefined
let fileInput: HTMLInputElement | undefined
const draft = createPromptInputV2Store(input.store)
const [state, setState] = input.state ?? createPromptInputV2State()
if (input.identity) {
createEffect(on(input.identity, () => setState(reconcile(createPromptInputV2InteractionState())), { defer: true }))
}
function addPart(part: PromptInputV2PersistedState["prompt"][number]) {
if (part.type === "image") return false
if (part.type === "file" || part.type === "agent") {
draft.addMention(part)
return true
}
const text = draft.state.prompt.map((item) => ("content" in item ? item.content : "")).join("")
const cursor = draft.state.cursor ?? text.length
draft.setText(text.slice(0, cursor) + part.content + text.slice(cursor))
return true
}
const attachments = input.attachments
? createPromptInputV2Attachments({
...input.attachments,
capture: () => ({
current: () => draft.state.prompt,
cursor: () => draft.state.cursor,
set: draft.setPrompt,
}),
editor: () => editor,
focusEditor: () => editor?.focus(),
addPart,
setDraggingType: (type) => dispatch({ type: type ? "drag.enter" : "drag.leave" }),
})
: undefined
const attach = () => {
if (!attachments) {
input.view.add?.onAttach()
return
}
attachments.pick(() => fileInput?.click())
}
const contextList = useFilteredList<PromptInputV2Suggestion>({
items: async (query) => {
const fixed = input.context().filter((item) => item.kind !== "file")
const recent = input.context().filter((item) => item.kind === "file" && item.recent)
if (!query.trim()) return [...fixed, ...recent]
const seen = new Set(recent.map((item) => item.id))
const files = (await input.searchContextFiles(query)).filter((item) => !seen.has(item.id))
return [...fixed, ...recent, ...files]
},
key: (item) => item.id,
filterKeys: ["label"],
skipFilter: (item) => item.kind === "file" && !item.recent,
groupBy: (item) => {
if (item.kind === "reference") return "reference"
if (item.kind === "agent") return "agent"
if (item.kind === "resource") return "resource"
if (item.recent) return "recent"
return "file"
},
sortGroupsBy: (a, b) => {
const order = ["reference", "agent", "resource", "recent", "file"]
return order.indexOf(a.category) - order.indexOf(b.category)
},
})
const commandList = useFilteredList<PromptInputV2Suggestion>({
items: () => input.commands(),
key: (item) => item.id,
filterKeys: ["trigger", "title"],
})
const list = () => (state.popover.type === "context" ? contextList : commandList)
const suggestions = () => list().flat()
const execute = (command: PromptInputV2InteractionCommand) => {
if (command.type === "draft.setText") {
draft.setText(command.value)
return
}
if (command.type === "mention.add") {
if (command.item.mention) draft.addMention(command.item.mention)
return
}
if (command.type === "popover.filter") {
;(command.popover === "command" ? commandList : contextList).onInput(command.query)
return
}
if (command.type === "suggestion.select") {
const item = suggestions().find((entry) => entry.id === command.id)
if (item) dispatch({ type: "popover.select", item })
return
}
if (command.type === "focus.editor") requestAnimationFrame(() => editor?.focus())
}
function dispatch(event: PromptInputV2InteractionEvent) {
const mode = state.mode
const result = transitionPromptInputV2(state, event, draft.state)
setState(reconcile(result.state))
result.commands.forEach(execute)
if (mode !== result.state.mode) {
if (result.state.mode === "shell") input.view.shell?.onOpen()
if (result.state.mode === "normal") input.view.shell?.onClose()
}
if (event.type === "popover.select") {
const action = input.onSuggestionSelect?.(event.item)
if (!action) return result.handled
if (event.item.kind === "command") {
draft.setPrompt(
draft.state.prompt.filter((part): part is PromptInputV2Attachment => part.type === "image"),
0,
)
}
action()
}
return result.handled
}
const onKeyDown = (event: KeyboardEvent) => {
if (
state.mode === "normal" &&
(event.metaKey || event.ctrlKey) &&
!event.altKey &&
!event.shiftKey &&
event.key.toLowerCase() === "u"
) {
event.preventDefault()
attach()
return true
}
const handled = dispatch({
type: "key.down",
key: event.key,
ctrl: event.ctrlKey && !event.metaKey && !event.altKey && !event.shiftKey,
composing: event.isComposing,
ids: suggestions().map((item) => item.id),
empty: draft.state.prompt.every((part) => !("content" in part) || part.content.length === 0),
})
if (handled) event.preventDefault()
if (handled && event.key !== "Enter" && event.key !== "Tab" && state.popover.type !== "closed") {
const activeID = state.popover.activeID ?? ""
requestAnimationFrame(() =>
document.querySelector(`[data-suggestion-id="${CSS.escape(activeID)}"]`)?.scrollIntoView({ block: "nearest" }),
)
}
if (handled) return true
const stop =
input.view.submit.working?.() &&
((event.ctrlKey && !event.metaKey && !event.altKey && !event.shiftKey && event.key.toLowerCase() === "g") ||
event.key === "Escape")
if (stop) {
event.preventDefault()
input.view.submit.onStop()
return true
}
if (
!event.altKey &&
!event.ctrlKey &&
!event.metaKey &&
(event.key === "ArrowUp" || event.key === "ArrowDown") &&
navigateHistory(event.key === "ArrowUp" ? "up" : "down")
) {
event.preventDefault()
return true
}
input.view.onKeyDown?.(event)
return event.defaultPrevented
}
createEffect(() => {
if (state.popover.type === "closed") return
const ids = suggestions().map((item) => item.id)
if (state.popover.activeID ? ids.includes(state.popover.activeID) : ids.length === 0) return
dispatch({ type: "popover.results", ids })
})
const restoreFocus = (cursor = draft.state.cursor ?? promptLength(draft.state.prompt)) => {
requestAnimationFrame(() => {
editor?.focus()
setEditorCursor(editor, cursor)
})
}
const applyHistory = (entry: PromptInputV2HistoryEntry, position: "start" | "end") => {
input.history?.restore?.(entry.metadata)
const cursor = position === "start" ? 0 : promptLength(entry.prompt)
draft.setPrompt(clonePrompt(entry.prompt), cursor)
restoreFocus(cursor)
}
const navigateHistory = (direction: "up" | "down") => {
if (!input.history || !editor) return false
const selection = window.getSelection()
if (!selection?.isCollapsed || !editor.contains(selection.anchorNode)) return false
const text = draft.state.prompt.map((part) => ("content" in part ? part.content : "")).join("")
if (!canNavigateHistory(direction, text, editorCursor(editor), state.historyIndex >= 0)) return false
const entries = input.history.entries(state.mode)
if (direction === "up") {
if (entries.length === 0 || state.historyIndex >= entries.length - 1) return false
if (state.historyIndex === -1) {
setState("savedHistory", {
prompt: clonePrompt(draft.state.prompt),
metadata: input.history.capture?.(),
})
}
const index = state.historyIndex + 1
setState("historyIndex", index)
applyHistory(entries[index]!, "start")
return true
}
if (state.historyIndex < 0) return false
if (state.historyIndex > 0) {
const index = state.historyIndex - 1
setState("historyIndex", index)
applyHistory(entries[index]!, "end")
return true
}
const saved = state.savedHistory ?? { prompt: [{ type: "text", content: "", start: 0, end: 0 }] }
setState({ historyIndex: -1, savedHistory: undefined })
applyHistory(saved, "end")
return true
}
return {
state,
view: input.view,
suggestions,
dispatch,
onKeyDown,
value() {
return draft.state.prompt.map((part) => ("content" in part ? part.content : "")).join("")
},
parts() {
return draft.state.prompt
},
addPart,
contextItem(id: string) {
return draft.state.context.items.find((item) => item.key === id)
},
comments() {
return draft.state.context.items.filter((item) => !!item.comment?.trim())
},
attachments(): PromptInputV2Attachment[] {
return draft.state.prompt.filter((part): part is PromptInputV2Attachment => part.type === "image")
},
toggleContext(id: string) {
dispatch({ type: "context.active", id })
input.openContext?.(id)
},
removeContext(id: string) {
const item = draft.state.context.items.find((entry) => entry.key === id)
if (item) input.onContextRemove?.(item)
draft.removeContext(id)
if (state.activeContextID === id) dispatch({ type: "context.active", id })
},
openAttachment(attachment: PromptInputV2Attachment) {
input.openAttachment?.(attachment)
},
removeAttachment(id: string) {
draft.removeAttachment(id)
},
canSubmit() {
const persisted = draft.state
if (persisted.prompt.some((part) => part.type === "image")) return true
if (persisted.context.items.some((item) => !!item.comment?.trim())) return true
return persisted.prompt.some((part) => "content" in part && !!part.content.trim())
},
setEditor(element: HTMLElement) {
editor = element
input.onEditor?.(element)
},
restoreFocus,
onInput(value: string, prompt?: PromptInputV2PersistedState["prompt"], cursor?: number) {
if (prompt) draft.setPrompt(prompt, cursor)
dispatch({ type: "input.changed", value, persist: !prompt })
},
onCursor(cursor: number) {
draft.setCursor(cursor)
},
openCommands() {
dispatch({ type: "commands.open" })
},
openContext() {
dispatch({ type: "context.open" })
},
openShell() {
dispatch({ type: "mode.shell" })
},
closeShell() {
dispatch({ type: "mode.normal" })
},
submit() {
input.view.submit.onSubmit()
dispatch({ type: "popover.close" })
},
stop() {
input.view.submit.onStop()
},
addHistory(prompt: PromptInputV2PersistedState["prompt"], mode: "normal" | "shell") {
input.history?.add(prompt, mode)
setState({ historyIndex: -1, savedHistory: undefined })
},
resetHistory() {
setState({ historyIndex: -1, savedHistory: undefined })
},
onPaste(event: ClipboardEvent) {
const clipboard = event.clipboardData
if (
attachments &&
(Array.from(clipboard?.items ?? []).some((item) => item.kind === "file") || !clipboard?.getData("text/plain"))
) {
void attachments.handlePaste(event)
return
}
input.view.onPaste?.(event)
if (event.defaultPrevented) return
const text = clipboard?.getData("text/plain")
if (!text) return
event.preventDefault()
if (typeof document.execCommand === "function" && document.execCommand("insertText", false, text)) return
const target = event.currentTarget
const selection = window.getSelection()
if (!(target instanceof HTMLElement) || !selection?.rangeCount || !target.contains(selection.anchorNode)) return
const range = selection.getRangeAt(0)
range.deleteContents()
const node = document.createTextNode(text)
range.insertNode(node)
range.setStartAfter(node)
range.collapse(true)
selection.removeAllRanges()
selection.addRange(range)
target.dispatchEvent(new InputEvent("input", { bubbles: true, inputType: "insertFromPaste", data: text }))
},
onDragEnter(event: DragEvent) {
event.preventDefault()
dispatch({ type: "drag.enter" })
},
onDragOver(event: DragEvent) {
event.preventDefault()
},
onDragLeave() {
dispatch({ type: "drag.leave" })
},
onDrop(event: DragEvent) {
event.preventDefault()
dispatch({ type: "drag.leave" })
if (attachments) {
event.stopPropagation()
void attachments.handleDrop(event)
return
}
input.view.onDrop?.(event)
},
attach,
setFileInput(element: HTMLInputElement) {
fileInput = element
},
addAttachments(files: File[]) {
if (attachments) void attachments.addAttachments(files)
},
setQuery(value: string) {
dispatch({ type: "popover.query", value })
},
}
}
export type PromptInputV2Interaction = ReturnType<typeof createPromptInputV2Controller>
function canNavigateHistory(direction: "up" | "down", text: string, cursor: number, inHistory: boolean) {
const position = Math.max(0, Math.min(cursor, text.length))
if (inHistory) return position === 0 || position === text.length
if (direction === "up") return position === 0 && text.length === 0
return position === text.length
}
function clonePrompt(prompt: PromptInputV2PersistedState["prompt"]): PromptInputV2PersistedState["prompt"] {
return prompt.map((part) =>
part.type === "file" ? { ...part, selection: part.selection ? { ...part.selection } : undefined } : { ...part },
)
}
function promptLength(prompt: PromptInputV2PersistedState["prompt"]) {
return prompt.reduce((length, part) => length + ("content" in part ? part.content.length : 0), 0)
}
function editorCursor(editor: HTMLElement) {
const selection = window.getSelection()
if (!selection?.rangeCount || !editor.contains(selection.anchorNode)) return editor.textContent?.length ?? 0
const range = selection.getRangeAt(0).cloneRange()
range.selectNodeContents(editor)
range.setEnd(selection.anchorNode!, selection.anchorOffset)
return range.toString().length
}
function setEditorCursor(editor: HTMLElement | undefined, cursor: number) {
if (!editor) return
const walker = document.createTreeWalker(editor, NodeFilter.SHOW_TEXT)
let remaining = cursor
let node = walker.nextNode()
while (node) {
const length = node.textContent?.length ?? 0
if (remaining <= length) {
const range = document.createRange()
range.setStart(node, remaining)
range.collapse(true)
const selection = window.getSelection()
selection?.removeAllRanges()
selection?.addRange(range)
return
}
remaining -= length
node = walker.nextNode()
}
}