773 lines
26 KiB
TypeScript
773 lines
26 KiB
TypeScript
import type {
|
|
AgentDeskConfig,
|
|
AgentDeskWidget,
|
|
SupportChatRuntimeConfig,
|
|
} from "./config-types"
|
|
|
|
type NormalizedAgentDeskConfig = AgentDeskConfig & {
|
|
baseUrl: string
|
|
channelId: string
|
|
language: string
|
|
position: "left" | "right"
|
|
themeColor: string
|
|
width: string
|
|
}
|
|
|
|
/** A host-signed visitor identity, resolved fresh on every open. */
|
|
type ResolvedExternalIdentity = {
|
|
signature: string
|
|
issuedAt: number
|
|
}
|
|
|
|
type WidgetState = {
|
|
button: HTMLButtonElement | null
|
|
frame: HTMLIFrameElement | null
|
|
frameLoaded: boolean
|
|
frameReady: boolean
|
|
initSent: boolean
|
|
isOpen: boolean
|
|
opening: boolean
|
|
isMaximized: boolean
|
|
mounted: boolean
|
|
mountGeneration: number
|
|
openGeneration: number
|
|
cancelOpen: (() => void) | null
|
|
configLoading: boolean
|
|
configPromise: Promise<void> | null
|
|
frameHideTimer: number | null
|
|
config: NormalizedAgentDeskConfig | null
|
|
frameConfig: SupportChatRuntimeConfig | null
|
|
frameUrl: URL | null
|
|
animationDuration: number
|
|
messageListener: ((event: MessageEvent) => void) | null
|
|
resizeListener: (() => void) | null
|
|
}
|
|
|
|
type WidgetConfigResponse = {
|
|
success?: boolean
|
|
data?: Partial<Pick<
|
|
AgentDeskConfig,
|
|
"title" | "subtitle" | "themeColor" | "position" | "width"
|
|
>>
|
|
}
|
|
|
|
type PublicConfigResponse = {
|
|
success?: boolean
|
|
data?: {
|
|
language?: string
|
|
}
|
|
}
|
|
|
|
function normalizeWidgetLanguage(language: string | undefined) {
|
|
const lang = String(language || "").toLowerCase()
|
|
if (lang.startsWith("ru")) return "ru-RU"
|
|
if (lang.startsWith("en")) return "en-US"
|
|
return "zh-CN"
|
|
}
|
|
|
|
function getDefaultWidgetTitle(config?: NormalizedAgentDeskConfig | null) {
|
|
const lang = normalizeWidgetLanguage(config?.language)
|
|
if (lang === "ru-RU") return "Поддержка"
|
|
if (lang === "en-US") return "Support"
|
|
return "\u5728\u7ebf\u5ba2\u670d"
|
|
}
|
|
|
|
function getLauncherText(config?: NormalizedAgentDeskConfig | null) {
|
|
const lang = normalizeWidgetLanguage(config?.language)
|
|
if (lang === "ru-RU") return "Чат"
|
|
if (lang === "en-US") return "Support"
|
|
return "\u5ba2\u670d"
|
|
}
|
|
|
|
type FrameMessage =
|
|
| { type: "agent-desk:init"; payload: SupportChatRuntimeConfig }
|
|
| { type: "agent-desk:open" }
|
|
| { type: "agent-desk:minimize" }
|
|
| { type: "agent-desk:maximized"; payload: { isMaximized: boolean } }
|
|
|
|
;(function () {
|
|
const DEFAULT_CONFIG: Pick<
|
|
NormalizedAgentDeskConfig,
|
|
"language" | "position" | "themeColor" | "width"
|
|
> = {
|
|
language: "zh-CN",
|
|
position: "right",
|
|
themeColor: "#0f6cbd",
|
|
width: "380px",
|
|
}
|
|
|
|
// Capture the SDK origin while currentScript still refers to this script.
|
|
const currentScript = document.currentScript as HTMLScriptElement | null
|
|
const scriptBaseUrl = currentScript?.src
|
|
? currentScript.src.replace(/\/sdk\/agent-desk-sdk\.min\.js(?:\?.*)?$/, "")
|
|
: ""
|
|
const existingState = window.__CS_AI_AGENT_WIDGET_STATE__ as WidgetState | undefined
|
|
// Re-evaluating the script must not leave callbacks from an older instance.
|
|
if (existingState) window.AgentDeskWidget?.destroy()
|
|
const state: WidgetState =
|
|
existingState || {
|
|
button: null,
|
|
frame: null,
|
|
frameLoaded: false,
|
|
frameReady: false,
|
|
initSent: false,
|
|
isOpen: false,
|
|
opening: false,
|
|
isMaximized: false,
|
|
mounted: false,
|
|
mountGeneration: 0,
|
|
openGeneration: 0,
|
|
cancelOpen: null,
|
|
configLoading: false,
|
|
configPromise: null,
|
|
frameHideTimer: null,
|
|
config: null,
|
|
frameConfig: null,
|
|
frameUrl: null,
|
|
animationDuration: 260,
|
|
messageListener: null,
|
|
resizeListener: null,
|
|
}
|
|
if (!existingState) {
|
|
window.__CS_AI_AGENT_WIDGET_STATE__ = state
|
|
}
|
|
|
|
function normalizeConfig(config?: AgentDeskConfig): NormalizedAgentDeskConfig {
|
|
const merged: Record<string, unknown> = { ...DEFAULT_CONFIG, ...(config || {}) }
|
|
merged.baseUrl = String(merged.baseUrl || window.location.origin).replace(/\/$/, "")
|
|
if (merged.apiBaseUrl) {
|
|
merged.apiBaseUrl = String(merged.apiBaseUrl).replace(/\/$/, "")
|
|
} else {
|
|
delete merged.apiBaseUrl
|
|
}
|
|
merged.channelId = String(merged.channelId || "")
|
|
merged.language = normalizeWidgetLanguage(String(merged.language || "zh-CN"))
|
|
if (merged.externalId) {
|
|
merged.externalId = String(merged.externalId)
|
|
}
|
|
if (typeof merged.getUserToken !== "function") {
|
|
delete merged.getUserToken
|
|
}
|
|
return merged as NormalizedAgentDeskConfig
|
|
}
|
|
|
|
function resolveWidgetBaseUrl(config: NormalizedAgentDeskConfig) {
|
|
return String(config.widgetBaseUrl || scriptBaseUrl || config.baseUrl || window.location.origin).replace(/\/$/, "")
|
|
}
|
|
|
|
function resolveConfig(config: AgentDeskConfig) {
|
|
const normalized = normalizeConfig(config)
|
|
normalized.widgetBaseUrl = resolveWidgetBaseUrl(normalized)
|
|
if (!config.baseUrl) normalized.baseUrl = normalized.widgetBaseUrl
|
|
return normalized
|
|
}
|
|
|
|
function createFrameUrl(
|
|
config: NormalizedAgentDeskConfig,
|
|
userToken: string,
|
|
identity: ResolvedExternalIdentity
|
|
) {
|
|
const widgetBaseUrl = resolveWidgetBaseUrl(config)
|
|
const frameUrl = new URL(`${widgetBaseUrl}/support/chat/`)
|
|
frameUrl.searchParams.set("channelId", config.channelId)
|
|
frameUrl.searchParams.set("baseUrl", config.baseUrl)
|
|
frameUrl.searchParams.set("parentOrigin", window.location.origin)
|
|
if (config.requireUserToken) frameUrl.searchParams.set("requireUserToken", "true")
|
|
if (config.apiBaseUrl) frameUrl.searchParams.set("apiBaseUrl", config.apiBaseUrl)
|
|
if (config.externalId) frameUrl.searchParams.set("externalId", config.externalId)
|
|
if (identity.signature) frameUrl.searchParams.set("externalIdSignature", identity.signature)
|
|
if (identity.issuedAt) frameUrl.searchParams.set("externalIdSignedAt", String(identity.issuedAt))
|
|
if (config.externalName) frameUrl.searchParams.set("externalName", config.externalName)
|
|
if (userToken) frameUrl.searchParams.set("userToken", userToken)
|
|
return frameUrl
|
|
}
|
|
|
|
function createFrameConfig(
|
|
config: NormalizedAgentDeskConfig,
|
|
userToken: string,
|
|
identity: ResolvedExternalIdentity
|
|
): SupportChatRuntimeConfig {
|
|
const payload = { ...config } as Record<string, unknown>
|
|
// Functions cannot cross the postMessage boundary; their resolved values travel instead.
|
|
delete payload.getUserToken
|
|
delete payload.signExternalId
|
|
if (userToken) {
|
|
return { ...payload, userToken } as SupportChatRuntimeConfig
|
|
}
|
|
if (identity.signature) {
|
|
return {
|
|
...payload,
|
|
externalIdSignature: identity.signature,
|
|
externalIdSignedAt: identity.issuedAt,
|
|
} as SupportChatRuntimeConfig
|
|
}
|
|
return payload as SupportChatRuntimeConfig
|
|
}
|
|
|
|
function resolveUserToken(config: NormalizedAgentDeskConfig) {
|
|
if (typeof config?.getUserToken !== "function") {
|
|
if (config.requireUserToken) return Promise.reject(new Error("Support user token is required"))
|
|
return Promise.resolve("")
|
|
}
|
|
try {
|
|
return Promise.resolve(config.getUserToken()).then((token) => {
|
|
const value = String(token || "").trim()
|
|
if (config.requireUserToken && !value) throw new Error("Support user token is required")
|
|
return value
|
|
})
|
|
} catch (error) {
|
|
return Promise.reject(error)
|
|
}
|
|
}
|
|
|
|
// Resolved per open(), like getUserToken, so the pair is always fresh and a
|
|
// long-lived host page does not keep replaying an expired signature. A missing
|
|
// signer simply means the visitor stays an anonymous guest.
|
|
function resolveExternalIdentity(config: NormalizedAgentDeskConfig): Promise<ResolvedExternalIdentity> {
|
|
if (!config?.externalId || typeof config.signExternalId !== "function") {
|
|
return Promise.resolve({ signature: "", issuedAt: 0 })
|
|
}
|
|
try {
|
|
return Promise.resolve(config.signExternalId(config.externalId)).then((signed) => ({
|
|
signature: String(signed?.signature || "").trim(),
|
|
issuedAt: Number(signed?.issuedAt) || 0,
|
|
}))
|
|
} catch (error) {
|
|
return Promise.reject(error)
|
|
}
|
|
}
|
|
|
|
function prepareFrame(config: NormalizedAgentDeskConfig) {
|
|
// Resolve against one snapshot. A later mount must never receive a token or
|
|
// signature requested for the previous channel or visitor.
|
|
return Promise.all([resolveUserToken(config), resolveExternalIdentity(config)]).then(
|
|
([userToken, identity]) => ({
|
|
frameUrl: createFrameUrl(config, userToken, identity),
|
|
frameConfig: createFrameConfig(config, userToken, identity),
|
|
})
|
|
)
|
|
}
|
|
|
|
function mergeWidgetConfig(
|
|
config: NormalizedAgentDeskConfig,
|
|
remoteConfig?: WidgetConfigResponse["data"]
|
|
) {
|
|
if (!remoteConfig) {
|
|
return config
|
|
}
|
|
const merged: NormalizedAgentDeskConfig = { ...config }
|
|
const remoteKeys = ["title", "subtitle", "themeColor", "position", "width"] as const
|
|
remoteKeys.forEach((key) => {
|
|
const value = remoteConfig[key]
|
|
if (value !== undefined && value !== null) {
|
|
;(merged[key] as typeof value) = value
|
|
}
|
|
})
|
|
return merged
|
|
}
|
|
|
|
function fetchConfigPayload<T>(url: string, options: RequestInit): Promise<T> {
|
|
const controller = typeof AbortController === "function" ? new AbortController() : null
|
|
// Remote defaults are optional. A slow config service must not prevent the
|
|
// host from opening with its own configuration indefinitely.
|
|
return new Promise<T>((resolve, reject) => {
|
|
const timer = window.setTimeout(() => {
|
|
controller?.abort()
|
|
reject(new Error("Widget configuration request timed out"))
|
|
}, 5000)
|
|
Promise.resolve()
|
|
.then(() => fetch(url, { ...options, signal: controller?.signal }))
|
|
.then((response) => response.json() as Promise<T>)
|
|
.then(
|
|
(payload) => {
|
|
window.clearTimeout(timer)
|
|
resolve(payload)
|
|
},
|
|
(error) => {
|
|
window.clearTimeout(timer)
|
|
reject(error)
|
|
}
|
|
)
|
|
})
|
|
}
|
|
|
|
function fetchWidgetConfig(config: NormalizedAgentDeskConfig) {
|
|
const baseUrl = String(config.apiBaseUrl || config.baseUrl || "").replace(/\/$/, "")
|
|
if (!baseUrl || !config.channelId || typeof fetch !== "function") {
|
|
return Promise.resolve(config)
|
|
}
|
|
const url = `${baseUrl}/api/channel/config?channelId=${encodeURIComponent(config.channelId)}`
|
|
return fetchConfigPayload<WidgetConfigResponse>(url, {
|
|
method: "GET",
|
|
cache: "no-store",
|
|
headers: {
|
|
"X-Channel-Id": config.channelId,
|
|
},
|
|
})
|
|
.then((payload) => {
|
|
if (!payload || payload.success === false) {
|
|
return config
|
|
}
|
|
return mergeWidgetConfig(config, payload.data || {})
|
|
})
|
|
.catch(() => config)
|
|
}
|
|
|
|
function fetchPublicConfig(config: NormalizedAgentDeskConfig) {
|
|
const baseUrl = String(config.apiBaseUrl || config.baseUrl || "").replace(/\/$/, "")
|
|
if (!baseUrl || typeof fetch !== "function") {
|
|
return Promise.resolve(config)
|
|
}
|
|
return fetchConfigPayload<PublicConfigResponse>(`${baseUrl}/api/config`, {
|
|
method: "GET",
|
|
cache: "no-store",
|
|
})
|
|
.then((payload) => {
|
|
if (!payload || payload.success === false) {
|
|
return config
|
|
}
|
|
return normalizeConfig({
|
|
...config,
|
|
language: payload.data?.language || config.language,
|
|
})
|
|
})
|
|
.catch(() => config)
|
|
}
|
|
|
|
function clearFrameTimers() {
|
|
if (state.frameHideTimer !== null) {
|
|
window.clearTimeout(state.frameHideTimer)
|
|
state.frameHideTimer = null
|
|
}
|
|
}
|
|
|
|
function applyFrameLayout() {
|
|
const frame = state.frame
|
|
const config = state.config
|
|
if (!frame || !config) {
|
|
return
|
|
}
|
|
|
|
frame.style.position = "fixed"
|
|
frame.style.border = "0"
|
|
frame.style.overflow = "hidden"
|
|
frame.style.background = "#fff"
|
|
frame.style.zIndex = "2147483000"
|
|
frame.style.boxShadow =
|
|
"0 0 0 1px rgba(15, 35, 65, 0.06), 0 4px 12px rgba(15, 35, 65, 0.08), 0 24px 64px rgba(15, 35, 65, 0.22)"
|
|
frame.style.willChange = "top,right,bottom,left,width,height,opacity,transform,border-radius"
|
|
frame.style.transition =
|
|
"top 260ms cubic-bezier(0.22, 1, 0.36, 1), right 260ms cubic-bezier(0.22, 1, 0.36, 1), bottom 260ms cubic-bezier(0.22, 1, 0.36, 1), left 260ms cubic-bezier(0.22, 1, 0.36, 1), width 260ms cubic-bezier(0.22, 1, 0.36, 1), height 260ms cubic-bezier(0.22, 1, 0.36, 1), opacity 220ms ease, transform 260ms cubic-bezier(0.22, 1, 0.36, 1), border-radius 260ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 260ms ease"
|
|
frame.style.transformOrigin =
|
|
config.position === "left" ? "left bottom" : "right bottom"
|
|
|
|
// Phones get the full viewport instead of a floating card that squeezes the chat.
|
|
const isCompact =
|
|
typeof window.innerWidth === "number" && window.innerWidth > 0 && window.innerWidth <= 480
|
|
if (state.isMaximized || isCompact) {
|
|
frame.style.top = "max(12px, env(safe-area-inset-top))"
|
|
frame.style.right = "max(12px, env(safe-area-inset-right))"
|
|
frame.style.bottom = "max(12px, env(safe-area-inset-bottom))"
|
|
frame.style.left = "max(12px, env(safe-area-inset-left))"
|
|
frame.style.width =
|
|
"calc(100vw - max(12px, env(safe-area-inset-left)) - max(12px, env(safe-area-inset-right)))"
|
|
frame.style.maxWidth = "none"
|
|
frame.style.height =
|
|
"calc(100dvh - max(12px, env(safe-area-inset-top)) - max(12px, env(safe-area-inset-bottom)))"
|
|
frame.style.borderRadius = "16px"
|
|
return
|
|
}
|
|
|
|
frame.style.top = ""
|
|
frame.style.bottom = "max(88px, calc(84px + env(safe-area-inset-bottom)))"
|
|
frame.style.right = config.position === "left" ? "" : "max(12px, env(safe-area-inset-right))"
|
|
frame.style.left = config.position === "left" ? "max(12px, env(safe-area-inset-left))" : ""
|
|
frame.style.width = config.width || "380px"
|
|
frame.style.maxWidth =
|
|
"calc(100vw - max(12px, env(safe-area-inset-left)) - max(12px, env(safe-area-inset-right)))"
|
|
frame.style.height =
|
|
"min(760px, calc(100dvh - max(104px, calc(88px + env(safe-area-inset-bottom))) - max(12px, env(safe-area-inset-top))))"
|
|
frame.style.borderRadius = "16px"
|
|
}
|
|
|
|
function postToFrame(message: FrameMessage) {
|
|
if (!state.frame?.contentWindow || !state.frameUrl) {
|
|
return
|
|
}
|
|
try {
|
|
state.frame.contentWindow.postMessage(message, state.frameUrl.origin)
|
|
} catch (error) {
|
|
console.error("[agent-desk-widget] postMessage failed", error)
|
|
}
|
|
}
|
|
|
|
function flushFrameState() {
|
|
if (!state.frame || !state.frameLoaded || !state.frameReady || !state.frameConfig) {
|
|
return
|
|
}
|
|
|
|
if (!state.initSent) {
|
|
state.initSent = true
|
|
postToFrame({
|
|
type: "agent-desk:init",
|
|
payload: state.frameConfig,
|
|
})
|
|
}
|
|
|
|
postToFrame({ type: state.isOpen ? "agent-desk:open" : "agent-desk:minimize" })
|
|
postToFrame({
|
|
type: "agent-desk:maximized",
|
|
payload: { isMaximized: state.isMaximized },
|
|
})
|
|
}
|
|
|
|
function syncLauncherState() {
|
|
state.button?.setAttribute("aria-expanded", String(state.isOpen || state.opening))
|
|
state.button?.setAttribute("aria-busy", String(state.opening))
|
|
}
|
|
|
|
function syncFrameVisibility() {
|
|
syncLauncherState()
|
|
const frame = state.frame
|
|
if (!frame) {
|
|
return
|
|
}
|
|
clearFrameTimers()
|
|
applyFrameLayout()
|
|
frame.style.display = "block"
|
|
|
|
if (state.isOpen) {
|
|
frame.style.visibility = "visible"
|
|
frame.style.pointerEvents = "auto"
|
|
state.frameHideTimer = window.setTimeout(() => {
|
|
if (state.frame !== frame || !state.isOpen || !state.mounted) {
|
|
return
|
|
}
|
|
frame.style.opacity = "1"
|
|
frame.style.transform = "translate3d(0, 0, 0) scale(1)"
|
|
}, 16)
|
|
flushFrameState()
|
|
return
|
|
}
|
|
|
|
frame.style.pointerEvents = "none"
|
|
frame.style.opacity = "0"
|
|
frame.style.transform = state.isMaximized
|
|
? "translate3d(0, 10px, 0) scale(0.985)"
|
|
: "translate3d(0, 16px, 0) scale(0.96)"
|
|
state.frameHideTimer = window.setTimeout(() => {
|
|
if (state.frame !== frame || state.isOpen || !state.mounted) {
|
|
return
|
|
}
|
|
frame.style.visibility = "hidden"
|
|
}, state.animationDuration)
|
|
flushFrameState()
|
|
}
|
|
|
|
function removeFrame() {
|
|
clearFrameTimers()
|
|
if (state.frame?.parentNode) state.frame.parentNode.removeChild(state.frame)
|
|
state.frame = null
|
|
state.frameLoaded = false
|
|
state.frameReady = false
|
|
state.initSent = false
|
|
}
|
|
|
|
function createFrame() {
|
|
if (state.frame) {
|
|
return state.frame
|
|
}
|
|
if (!state.frameUrl || !state.config || !state.mounted) {
|
|
return null
|
|
}
|
|
|
|
const frame = document.createElement("iframe")
|
|
state.frame = frame
|
|
frame.dataset.agentDeskWidget = "frame"
|
|
frame.title = state.config.title || getDefaultWidgetTitle(state.config)
|
|
frame.src = state.frameUrl.toString()
|
|
applyFrameLayout()
|
|
frame.style.display = "block"
|
|
frame.style.visibility = "hidden"
|
|
frame.style.pointerEvents = "none"
|
|
frame.style.opacity = "0"
|
|
frame.style.transform = "translate3d(0, 18px, 0) scale(0.96)"
|
|
frame.addEventListener("load", () => {
|
|
if (state.frame !== frame || !state.mounted) return
|
|
state.frameLoaded = true
|
|
syncFrameVisibility()
|
|
})
|
|
|
|
document.body.appendChild(frame)
|
|
return frame
|
|
}
|
|
|
|
function handleWindowMessage(event: MessageEvent) {
|
|
if (
|
|
!state.mounted ||
|
|
!state.frame ||
|
|
!state.frameUrl ||
|
|
event.source !== state.frame.contentWindow ||
|
|
event.origin !== state.frameUrl.origin
|
|
) {
|
|
return
|
|
}
|
|
|
|
if (!event.data || typeof event.data !== "object") return
|
|
const data = event.data as { type?: string }
|
|
if (data.type === "agent-desk:ready") {
|
|
state.frameReady = true
|
|
flushFrameState()
|
|
return
|
|
}
|
|
|
|
if (data.type === "agent-desk:request-minimize" || data.type === "agent-desk:request-close") {
|
|
closeWidget()
|
|
return
|
|
}
|
|
|
|
if (data.type === "agent-desk:request-toggle-maximize") {
|
|
state.isMaximized = !state.isMaximized
|
|
syncFrameVisibility()
|
|
}
|
|
}
|
|
|
|
function createLauncher() {
|
|
if (state.button) {
|
|
return state.button
|
|
}
|
|
|
|
const config = state.config
|
|
if (!config) {
|
|
return null
|
|
}
|
|
const button = document.createElement("button")
|
|
const icon = document.createElementNS("http://www.w3.org/2000/svg", "svg")
|
|
const iconPaths = ["M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"]
|
|
const text = document.createElement("span")
|
|
const themeColor = config.themeColor || "#0f6cbd"
|
|
const reduceMotion =
|
|
typeof window.matchMedia === "function" &&
|
|
window.matchMedia("(prefers-reduced-motion: reduce)").matches
|
|
const restShadow = "0 1px 2px rgba(15, 35, 65, 0.16), 0 8px 24px rgba(15, 35, 65, 0.22)"
|
|
const hoverShadow = "0 2px 4px rgba(15, 35, 65, 0.18), 0 12px 32px rgba(15, 35, 65, 0.28)"
|
|
button.type = "button"
|
|
button.dataset.agentDeskWidget = "launcher"
|
|
button.setAttribute("aria-label", config.title || getDefaultWidgetTitle(config))
|
|
icon.setAttribute("viewBox", "0 0 24 24")
|
|
icon.setAttribute("fill", "none")
|
|
icon.setAttribute("stroke", "currentColor")
|
|
icon.setAttribute("stroke-width", "2")
|
|
icon.setAttribute("stroke-linecap", "round")
|
|
icon.setAttribute("stroke-linejoin", "round")
|
|
icon.setAttribute("aria-hidden", "true")
|
|
icon.style.width = "26px"
|
|
icon.style.height = "26px"
|
|
icon.style.flex = "0 0 auto"
|
|
iconPaths.forEach((pathData) => {
|
|
const path = document.createElementNS("http://www.w3.org/2000/svg", "path")
|
|
path.setAttribute("d", pathData)
|
|
icon.appendChild(path)
|
|
})
|
|
// Visually hidden: the icon carries the meaning, the label serves assistive tech.
|
|
text.textContent = getLauncherText(config)
|
|
text.style.position = "absolute"
|
|
text.style.width = "1px"
|
|
text.style.height = "1px"
|
|
text.style.overflow = "hidden"
|
|
text.style.clip = "rect(0 0 0 0)"
|
|
text.style.whiteSpace = "nowrap"
|
|
button.style.position = "fixed"
|
|
button.style.bottom = "max(20px, env(safe-area-inset-bottom))"
|
|
button.style.right = config.position === "left" ? "" : "max(20px, env(safe-area-inset-right))"
|
|
button.style.left = config.position === "left" ? "max(20px, env(safe-area-inset-left))" : ""
|
|
button.style.zIndex = "2147483000"
|
|
button.style.display = "inline-flex"
|
|
button.style.alignItems = "center"
|
|
button.style.justifyContent = "center"
|
|
button.style.width = "56px"
|
|
button.style.height = "56px"
|
|
button.style.border = "0"
|
|
button.style.borderRadius = "999px"
|
|
button.style.padding = "0"
|
|
button.style.background = themeColor
|
|
button.style.color = "#fff"
|
|
button.style.boxShadow = restShadow
|
|
button.style.cursor = "pointer"
|
|
button.style.outline = "none"
|
|
button.style.transition = reduceMotion
|
|
? "none"
|
|
: "transform 180ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 180ms ease"
|
|
button.appendChild(icon)
|
|
button.appendChild(text)
|
|
|
|
const lift = () => {
|
|
button.style.transform = "translateY(-2px)"
|
|
button.style.boxShadow = hoverShadow
|
|
}
|
|
const rest = () => {
|
|
button.style.transform = "none"
|
|
button.style.boxShadow = restShadow
|
|
}
|
|
button.addEventListener("mouseenter", lift)
|
|
button.addEventListener("mouseleave", rest)
|
|
button.addEventListener("focus", () => {
|
|
button.style.boxShadow = `${hoverShadow}, 0 0 0 3px ${themeColor}55`
|
|
})
|
|
button.addEventListener("blur", rest)
|
|
|
|
button.addEventListener("click", () => {
|
|
if (state.isOpen || state.opening) {
|
|
closeWidget()
|
|
return
|
|
}
|
|
|
|
// openWidget logs active failures; native clicks have no Promise caller.
|
|
void openWidget().catch(() => {})
|
|
})
|
|
|
|
document.body.appendChild(button)
|
|
state.button = button
|
|
syncLauncherState()
|
|
return button
|
|
}
|
|
|
|
function mount(config?: AgentDeskConfig) {
|
|
const rawConfig = { ...(config || window.AgentDeskConfig || { channelId: "" }) }
|
|
// A remount replaces the previous UI and invalidates every pending request.
|
|
// Conversation history belongs to the chat, not this disposable host UI.
|
|
destroy()
|
|
state.config = resolveConfig(rawConfig)
|
|
if (!state.config.channelId) {
|
|
console.error("[agent-desk-widget] channelId is required")
|
|
return
|
|
}
|
|
|
|
state.mounted = true
|
|
state.messageListener = handleWindowMessage
|
|
state.resizeListener = applyFrameLayout
|
|
window.addEventListener("message", state.messageListener)
|
|
window.addEventListener("resize", state.resizeListener)
|
|
const mountGeneration = state.mountGeneration
|
|
state.configLoading = true
|
|
const publicConfig = rawConfig.language
|
|
? Promise.resolve(state.config)
|
|
: fetchPublicConfig(state.config)
|
|
state.configPromise = publicConfig
|
|
.then((nextConfig) => {
|
|
if (!state.mounted || state.mountGeneration !== mountGeneration) return null
|
|
return fetchWidgetConfig(nextConfig)
|
|
})
|
|
.then((nextConfig) => {
|
|
if (!nextConfig || !state.mounted || state.mountGeneration !== mountGeneration) return
|
|
state.configLoading = false
|
|
state.config = normalizeConfig(nextConfig)
|
|
createLauncher()
|
|
})
|
|
}
|
|
|
|
function destroy() {
|
|
state.mounted = false
|
|
state.mountGeneration = (state.mountGeneration || 0) + 1
|
|
cancelPendingOpen()
|
|
if (state.messageListener) window.removeEventListener("message", state.messageListener)
|
|
if (state.resizeListener) window.removeEventListener("resize", state.resizeListener)
|
|
state.messageListener = null
|
|
state.resizeListener = null
|
|
removeFrame()
|
|
if (state.button?.parentNode) {
|
|
state.button.parentNode.removeChild(state.button)
|
|
}
|
|
state.button = null
|
|
state.isOpen = false
|
|
state.isMaximized = false
|
|
state.configLoading = false
|
|
state.configPromise = null
|
|
state.frameConfig = null
|
|
state.frameUrl = null
|
|
}
|
|
|
|
function cancelPendingOpen() {
|
|
state.openGeneration = (state.openGeneration || 0) + 1
|
|
state.cancelOpen?.()
|
|
state.cancelOpen = null
|
|
state.opening = false
|
|
}
|
|
|
|
function closeWidget() {
|
|
cancelPendingOpen()
|
|
state.isOpen = false
|
|
syncFrameVisibility()
|
|
}
|
|
|
|
async function openWidget() {
|
|
if (!state.mounted) mount(state.config || window.AgentDeskConfig)
|
|
if (!state.config?.channelId || !state.mounted) return
|
|
|
|
cancelPendingOpen()
|
|
const mountGeneration = state.mountGeneration
|
|
const openGeneration = state.openGeneration
|
|
const canceled = new Promise<null>((resolve) => {
|
|
state.cancelOpen = () => resolve(null)
|
|
})
|
|
const isCurrentOpen = () =>
|
|
state.mounted &&
|
|
state.mountGeneration === mountGeneration &&
|
|
state.openGeneration === openGeneration
|
|
state.opening = true
|
|
syncLauncherState()
|
|
try {
|
|
await Promise.race([state.configPromise, canceled])
|
|
if (!isCurrentOpen() || !state.config) return
|
|
const prepared = await Promise.race([prepareFrame({ ...state.config }), canceled])
|
|
// close(), destroy(), and a newer open()/mount() all cancel this open.
|
|
// Do not assign identity, create a frame or flash stale UI afterwards.
|
|
if (!prepared || !isCurrentOpen()) return
|
|
state.frameUrl = prepared.frameUrl
|
|
state.frameConfig = prepared.frameConfig
|
|
if (state.frame && state.frame.src !== prepared.frameUrl.toString()) {
|
|
// A fresh identity needs a new document. Replacing the element also
|
|
// fences delayed load/ready events from its previous document.
|
|
removeFrame()
|
|
}
|
|
if (!state.frame) createFrame()
|
|
if (!state.frame) return
|
|
state.opening = false
|
|
state.isOpen = true
|
|
syncFrameVisibility()
|
|
} catch (error) {
|
|
if (isCurrentOpen()) {
|
|
console.error("[agent-desk-widget] open failed", error)
|
|
throw error
|
|
}
|
|
} finally {
|
|
if (isCurrentOpen()) {
|
|
state.cancelOpen = null
|
|
state.opening = false
|
|
syncLauncherState()
|
|
}
|
|
}
|
|
}
|
|
|
|
window.AgentDeskWidget = {
|
|
mount,
|
|
destroy,
|
|
open: () => openWidget(),
|
|
close: closeWidget,
|
|
getChatUrl: () => {
|
|
const config = state.config
|
|
? { ...state.config }
|
|
: resolveConfig(window.AgentDeskConfig || { channelId: "" })
|
|
if (!config.channelId) {
|
|
return Promise.reject(new Error("channelId is required"))
|
|
}
|
|
// A standalone link must not change the active frame's URL or identity.
|
|
return prepareFrame(config).then(({ frameUrl }) => frameUrl.toString())
|
|
},
|
|
} satisfies AgentDeskWidget
|
|
|
|
if (window.AgentDeskConfig) {
|
|
mount(window.AgentDeskConfig)
|
|
}
|
|
})()
|