miniProgram.js
2.48 KB
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const WECHAT_JS_SDK_URL = 'https://res.wx.qq.com/open/js/jweixin-1.6.0.js'
let wechat_bridge_loading_promise = null
const isBrowserEnv = () => typeof window !== 'undefined' && typeof document !== 'undefined'
const getWechatBridge = () => {
if (typeof window === 'undefined') {
return null
}
return window.wx || window.jWeixin || null
}
const getMiniProgramBridge = () => getWechatBridge()?.miniProgram || null
export const isH5Env = () => isBrowserEnv()
const ensureWechatBridge = async () => {
if (!isH5Env()) {
return null
}
const current_bridge = getWechatBridge()
if (current_bridge) {
return current_bridge
}
if (!wechat_bridge_loading_promise) {
wechat_bridge_loading_promise = new Promise((resolve, reject) => {
const script = document.createElement('script')
script.src = WECHAT_JS_SDK_URL
script.async = true
script.onload = () => resolve(getWechatBridge())
script.onerror = () => reject(new Error('微信 JS SDK 加载失败'))
document.head.appendChild(script)
})
}
try {
return await wechat_bridge_loading_promise
} catch (error) {
wechat_bridge_loading_promise = null
throw error
}
}
export const isWechatMiniProgramWebview = () => new Promise((resolve) => {
const check_env = async () => {
if (!isH5Env()) {
resolve(false)
return
}
try {
await ensureWechatBridge()
} catch (error) {
console.error('微信 JS SDK 初始化失败:', error)
resolve(false)
return
}
const mini_program_bridge = getMiniProgramBridge()
if (!mini_program_bridge) {
resolve(false)
return
}
if (typeof mini_program_bridge.getEnv !== 'function') {
resolve(true)
return
}
mini_program_bridge.getEnv((result = {}) => {
resolve(!!result.miniprogram)
})
}
check_env().catch(() => {
resolve(false)
})
})
export const navigateToMiniProgramPage = async (url = '') => {
const normalized_url = String(url || '').trim()
if (!normalized_url) {
return false
}
const is_supported_webview = await isWechatMiniProgramWebview()
if (!is_supported_webview) {
return false
}
const mini_program_bridge = getMiniProgramBridge()
if (typeof mini_program_bridge?.navigateTo !== 'function') {
return false
}
return new Promise((resolve, reject) => {
mini_program_bridge.navigateTo({
url: normalized_url,
success: () => resolve(true),
fail: (error) => reject(error),
})
})
}