File size: 5,846 Bytes
3e05655 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 | import type { UserMessage } from "@opencode-ai/sdk/v2"
import { useLocation, useNavigate } from "@solidjs/router"
import { createEffect, createMemo, onCleanup, onMount } from "solid-js"
import { messageIdFromHash } from "./message-id-from-hash"
export const useSessionHashScroll = (input: {
sessionKey: () => string
sessionID: () => string | undefined
messagesReady: () => boolean
visibleUserMessages: () => UserMessage[]
historyMore: () => boolean
historyLoading: () => boolean
loadMore: (sessionID: string) => Promise<void>
currentMessageId: () => string | undefined
pendingMessage: () => string | undefined
setPendingMessage: (value: string | undefined) => void
setActiveMessage: (message: UserMessage | undefined) => void
autoScroll: { pause: () => void; forceScrollToBottom: () => void }
scroller: () => HTMLDivElement | undefined
anchor: (id: string) => string
revealMessage?: (id: string) => void
scheduleScrollState: (el: HTMLDivElement) => void
consumePendingMessage: (key: string) => string | undefined
}) => {
const visibleUserMessages = createMemo(() => input.visibleUserMessages())
const messageById = createMemo(() => new Map(visibleUserMessages().map((m) => [m.id, m])))
let pendingKey = ""
let clearing = false
const location = useLocation()
const navigate = useNavigate()
const frames = new Set<number>()
const queue = (fn: () => void) => {
const id = requestAnimationFrame(() => {
frames.delete(id)
fn()
})
frames.add(id)
}
const cancel = () => {
for (const id of frames) cancelAnimationFrame(id)
frames.clear()
}
const clearMessageHash = () => {
cancel()
input.consumePendingMessage(input.sessionKey())
if (input.pendingMessage()) input.setPendingMessage(undefined)
if (!location.hash) return
clearing = true
navigate(location.pathname + location.search, { replace: true })
}
const updateHash = (id: string) => {
const hash = `#${input.anchor(id)}`
if (location.hash === hash) return
clearing = false
navigate(location.pathname + location.search + hash, {
replace: true,
})
}
const scrollToElement = (el: HTMLElement, behavior: ScrollBehavior) => {
const root = input.scroller()
if (!root) return false
const a = el.getBoundingClientRect()
const b = root.getBoundingClientRect()
const sticky = root.querySelector("[data-session-title]")
const inset = sticky instanceof HTMLElement ? sticky.offsetHeight : 0
const top = Math.max(0, a.top - b.top + root.scrollTop - inset)
root.scrollTo({ top, behavior })
return true
}
const seek = (id: string, behavior: ScrollBehavior, left = 4): boolean => {
input.revealMessage?.(id)
const el = document.getElementById(input.anchor(id))
if (el) return scrollToElement(el, behavior)
if (left <= 0) return false
queue(() => {
seek(id, behavior, left - 1)
})
return false
}
const scrollToMessage = (message: UserMessage, behavior: ScrollBehavior = "smooth") => {
cancel()
if (input.currentMessageId() !== message.id) input.setActiveMessage(message)
input.revealMessage?.(message.id)
if (seek(message.id, behavior)) {
updateHash(message.id)
return
}
updateHash(message.id)
}
const applyHash = (behavior: ScrollBehavior) => {
const hash = location.hash.slice(1)
if (!hash) {
input.autoScroll.forceScrollToBottom()
const el = input.scroller()
if (el) input.scheduleScrollState(el)
return
}
const messageId = messageIdFromHash(hash)
if (messageId) {
input.autoScroll.pause()
const msg = messageById().get(messageId)
if (msg) {
scrollToMessage(msg, behavior)
return
}
return
}
const target = document.getElementById(hash)
if (target) {
input.autoScroll.pause()
scrollToElement(target, behavior)
return
}
input.autoScroll.forceScrollToBottom()
const el = input.scroller()
if (el) input.scheduleScrollState(el)
}
createEffect(() => {
const hash = location.hash
if (!hash) clearing = false
if (!input.sessionID() || !input.messagesReady()) return
cancel()
queue(() => applyHash("auto"))
})
createEffect(() => {
if (!input.sessionID() || !input.messagesReady()) return
visibleUserMessages()
let targetId = input.pendingMessage()
if (!targetId) {
const key = input.sessionKey()
if (pendingKey !== key) {
pendingKey = key
const next = input.consumePendingMessage(key)
if (next) {
input.setPendingMessage(next)
targetId = next
}
}
}
if (!targetId && !clearing) targetId = messageIdFromHash(location.hash)
if (!targetId) return
const pending = input.pendingMessage() === targetId
const msg = messageById().get(targetId)
if (!msg) return
if (pending) input.setPendingMessage(undefined)
if (input.currentMessageId() === targetId && !pending) return
input.autoScroll.pause()
cancel()
queue(() => scrollToMessage(msg, "auto"))
})
createEffect(() => {
const sessionID = input.sessionID()
if (!sessionID || !input.messagesReady()) return
visibleUserMessages()
let targetId = input.pendingMessage()
if (!targetId && !clearing) targetId = messageIdFromHash(location.hash)
if (!targetId) return
if (messageById().has(targetId)) return
if (!input.historyMore() || input.historyLoading()) return
void input.loadMore(sessionID)
})
onMount(() => {
if (typeof window !== "undefined" && "scrollRestoration" in window.history) {
window.history.scrollRestoration = "manual"
}
})
onCleanup(cancel)
return {
clearMessageHash,
scrollToMessage,
applyHash,
}
}
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