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perf: optimize embed button loading with lazy iframe initialization #280

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Merged
merged 1 commit into from
Sep 23, 2025
Merged

perf: optimize embed button loading with lazy iframe initialization #280

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353 changes: 184 additions & 169 deletions static/embed.js
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Original file line number Diff line number Diff line change
@@ -1,182 +1,197 @@
function createButton() {
const button = document.createElement('div');
button.id = "wiseengage-guests-embed-button";

// 初始化样式
Object.assign(button.style, {
overflow: "hidden",
position: "fixed",
userSelect: "none",
right: "20px",
bottom: "40px",
zIndex: "9999",
width: "50px",
height: "50px",
borderRadius: "50%",
display: "flex",
justifyContent: "center",
alignItems: "center",
boxShadow: "0px 4px 8px rgba(0, 0, 0, 0.2)",
cursor: "pointer",
});
button.style.backgroundColor = '#2160fd'
button.style.padding = '8px'
const iconImgEl = document.createElement('img');
iconImgEl.src = '/logo/iframe-enter-icon-logo.svg';
iconImgEl.style.width = '100%';
iconImgEl.style.height = '100%';
button.appendChild(iconImgEl);

return button;
}

function createIframe() {
const iframeWrap = document.createElement('div');
const iframe = document.createElement('iframe');

iframeWrap.id = "wiseengage-guests-embed-iframe-wrap";
iframe.id = "wiseengage-guests-embed-iframe";

Object.assign(iframeWrap.style, {
position: "fixed",
zIndex: "10000",
borderRadius: "10px",
boxShadow: "0px 10px 30px rgba(150, 150, 150, 0.2), 0px 0px 0px 1px rgba(150, 150, 150, 0.2)",
transition: "transform 0.3s ease, opacity 0.3s ease",
transform: "scale(0)",
transformOrigin: "right bottom",
opacity: 0,
});

Object.assign(iframe.style, {
width: "100%",
height: "100%",
});

return { iframeWrap, iframe };
}

(function () {
console.log('[IFRAME] hello, embed injected')

const isMobile = /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent);

const button = document.createElement('div');
const iframe = document.createElement('iframe');

button.id = "openim-customer-service-embed-button";
iframe.id = "openim-customer-service-embed-iframe";

let isMinMode = false;
let isInit = false;
const iframeSrc = "https://web.rentsoft.cn";
const allowedOrigins = [iframeSrc];

function initUI() {
Object.assign(button.style, {
overflow: "hidden",
position: "fixed",
userSelect: "none",
right: "20px",
bottom: "40px",
zIndex: "9999",
width: "50px",
height: "50px",
borderRadius: "50%",
display: "flex",
justifyContent: "center",
alignItems: "center",
boxShadow: "0px 4px 8px rgba(0, 0, 0, 0.2)",
cursor: "pointer",
});
button.style.backgroundColor = '#2160fd'
button.style.padding = '8px'
const iconImgEl = document.createElement('img');
iconImgEl.src = '/logo/iframe-enter-icon-logo.svg';
iconImgEl.style.width = '100%';
iconImgEl.style.height = '100%';
button.appendChild(iconImgEl);
console.log('[IFRAME] hello, embed injected')

const isMobile = /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent);

let isMinMode = false;
let isInit = false;
let isLoadIframe = false;

// DEBUG:
const iframeSrc = "https://web.rentsoft.cn";
const allowedOrigins = [iframeSrc];

const { iframeWrap, iframe } = createIframe();
const button = createButton();

function initUI() {
document.body.appendChild(iframeWrap);
document.body.appendChild(button);
isInit = true;

adjustIframeStyleForSmallScreens();
}

const fireToIframe = (event, data) => {
iframe.contentWindow?.postMessage({ event, data }, '*');
};

button.onclick = function () {
console.log('[embed] click button')

const isMinWidth = window.matchMedia("(max-width: 768px)").matches || isMobile;
const isHidden = iframeWrap.style.transform === "scale(0)";

if (isHidden) {
if (!isLoadIframe) {
iframe.src = iframeSrc;
Object.assign(iframe.style, {
position: "fixed",
zIndex: "10000",
borderRadius: "10px",
boxShadow: "0px 10px 30px rgba(150, 150, 150, 0.2), 0px 0px 0px 1px rgba(150, 150, 150, 0.2)",
transition: "transform 0.3s ease, opacity 0.3s ease",
transform: "scale(0)",
transformOrigin: "right bottom",
opacity: 0,
});

document.body.appendChild(iframe);
isInit = true;

adjustIframeStyleForSmallScreens();
iframeWrap.appendChild(iframe);
isLoadIframe = true;
}
fireToIframe('openIframe', isMinWidth);
iframeWrap.style.transform = "scale(1)";
iframeWrap.style.opacity = 1;
} else {
iframeWrap.style.transform = "scale(0)";
iframeWrap.style.opacity = 0;
}
if (isMinWidth && isHidden) {
document.body.style.overflow = 'hidden';
document.documentElement.style.overflow = 'hidden';
}
};

const fireToIframe = (event, data) => {
iframe.contentWindow?.postMessage({ event, data }, '*');
};

button.onclick = function () {
console.log('[embed] click button')

const isMinWidth = window.matchMedia("(max-width: 768px)").matches || isMobile;
const isHidden = iframe.style.transform === "scale(0)";

if (isHidden) {
fireToIframe('openIframe', isMinWidth);
iframe.style.transform = "scale(1)";
iframe.style.opacity = 1;
} else {
iframe.style.transform = "scale(0)";
iframe.style.opacity = 0;
}
if (isMinWidth && isHidden) {
document.body.style.overflow = 'hidden';
document.documentElement.style.overflow = 'hidden';
let isGetConfig = false;
const rpc = setupParentRPCListener({
allowedOrigins: allowedOrigins, // ★ 必填：子页面来源
debug: true,
handler: async function ({ action, data }) {
if (action === 'closeIframe') {
iframeWrap.style.transform = "scale(0)";
iframeWrap.style.opacity = 0;
document.body.style.overflow = '';
document.documentElement.style.overflow = '';
}
if (action === 'toogleSize') {
iframeWrap.style.width = isMinMode ? "720px" : "420px";
iframeWrap.style.height = isMinMode ? "80vh" : "60vh";
isMinMode = !isMinMode;
}
if (action === 'getConfig') {
console.log('get config', data, isGetConfig);
if(isGetConfig) return;
document.body.appendChild(button);
isGetConfig = true;
}
},
});

// 在页面关闭/刷新时清理监听，避免内存泄漏，并使变量被有效使用
try {
window.addEventListener('beforeunload', function () {
try {
if (rpc && typeof rpc.dispose === 'function') {
rpc.dispose();
}
};

let isGetConfig = false;
const rpc = setupParentRPCListener({
allowedOrigins: allowedOrigins, // ★ 必填：子页面来源
debug: true,
handler: async function ({ action, data }) {
if (action === 'closeIframe') {
iframe.style.transform = "scale(0)";
iframe.style.opacity = 0;
document.body.style.overflow = '';
document.documentElement.style.overflow = '';
}
if (action === 'toogleSize') {
iframe.style.width = isMinMode ? "720px" : "420px";
iframe.style.height = isMinMode ? "80vh" : "60vh";
isMinMode = !isMinMode;
}
if (action === 'getConfig') {
console.log('get config', data, isGetConfig);
if(isGetConfig) return;
// if(data){
// button.style.backgroundColor = '#2160fd'
// button.style.padding = '8px'
// const iconImgEl = document.createElement('img');
// iconImgEl.src = data.iconUrl;
// iconImgEl.style.width = '100%';
// iconImgEl.style.height = '100%';
// button.appendChild(iconImgEl);
// }else {
// button.innerHTML = "Ask";
// button.style.color = "white";
// button.style.backgroundColor = "#2160fd";
// }
document.body.appendChild(button);
isGetConfig = true;
}
},
} catch (e) {
/* ignore dispose errors */
console.error(e);
}
});
} catch (e) {
/* ignore addEventListener errors */
console.error(e);
}

// 在页面关闭/刷新时清理监听，避免内存泄漏，并使变量被有效使用
try {
window.addEventListener('beforeunload', function () {
try {
if (rpc && typeof rpc.dispose === 'function') {
rpc.dispose();
}
} catch (e) {
/* ignore dispose errors */
console.error(e);
}
});
} catch (e) {
/* ignore addEventListener errors */
console.error(e);
window.onload = initUI;

function adjustIframeStyleForSmallScreens() {
if (!isInit) return;
const isMinWidth = window.matchMedia("(max-width: 768px)").matches || isMobile;
const isHidden = iframeWrap.style.transform === "scale(0)";

if (isMinWidth) {
Object.assign(iframeWrap.style, {
width: "100%",
height: "100%",
right: "0",
bottom: "0",
left: "0",
top: "0",
borderRadius: "0",
boxShadow: "none",
});
if (!isHidden) {
document.body.style.overflow = 'hidden';
document.documentElement.style.overflow = 'hidden';
fireToIframe('resizeIframe', true);
}
} else {
Object.assign(iframeWrap.style, {
width: isMinMode ? "420px" : "640px",
height: isMinMode ? "60vh" : "80vh",
right: "20px",
bottom: "100px",
left: "unset",
top: "unset",
borderRadius: "10px",
boxShadow: "0px 10px 30px rgba(150, 150, 150, 0.2), 0px 0px 0px 1px rgba(150, 150, 150, 0.2)",
});
document.body.style.overflow = '';
document.documentElement.style.overflow = '';
fireToIframe('resizeIframe', false);
}
}

window.onload = initUI;

function adjustIframeStyleForSmallScreens() {
if (!isInit) return;
const isMinWidth = window.matchMedia("(max-width: 768px)").matches || isMobile;
const isHidden = iframe.style.transform === "scale(0)";

if (isMinWidth) {
Object.assign(iframe.style, {
width: "100%",
height: "100%",
right: "0",
bottom: "0",
left: "0",
top: "0",
borderRadius: "0",
boxShadow: "none",
});
if (!isHidden) {
document.body.style.overflow = 'hidden';
document.documentElement.style.overflow = 'hidden';
fireToIframe('resizeIframe', true);
}
} else {
Object.assign(iframe.style, {
width: isMinMode ? "420px" : "640px",
height: isMinMode ? "60vh" : "80vh",
right: "20px",
bottom: "100px",
left: "unset",
top: "unset",
borderRadius: "10px",
boxShadow: "0px 10px 30px rgba(150, 150, 150, 0.2), 0px 0px 0px 1px rgba(150, 150, 150, 0.2)",
});
document.body.style.overflow = '';
document.documentElement.style.overflow = '';
fireToIframe('resizeIframe', false);
}
}

window.addEventListener('resize', adjustIframeStyleForSmallScreens);
window.addEventListener('resize', adjustIframeStyleForSmallScreens);
})();

// parent-rpc.js
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