cbsy/blxc-admin/target/classes/static/portal/js/flexible.js

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JavaScript
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2024-06-02 22:37:16 +08:00
(function flexible(window, document) {
var docEl = document.documentElement;
var dpr = window.devicePixelRatio || 1;
// adjust body font size
function setBodyFontSize() {
if (document.body) {
document.body.style.fontSize = 12 * dpr + "px";
} else {
document.addEventListener("DOMContentLoaded", setBodyFontSize);
}
}
setBodyFontSize();
// set 1rem = viewWidth / 10
// var isPhone =
// /phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone/i.test(
// navigator.userAgent
// );
// if (isPhone) {
// alert("移动端");
// } else {
// alert("PC端");
// }
function setRemUnit() {
var rem = docEl.clientWidth / 76.8; //这里默认是10等分的手动改为24这个时候1rem=1920px (设计稿的宽为1920px)/24px=80px (第二点的值的由来)
docEl.style.fontSize = rem + "px";
}
setRemUnit();
// reset rem unit on page resize
window.addEventListener("resize", setRemUnit);
window.addEventListener("pageshow", function (e) {
if (e.persisted) {
setRemUnit();
}
});
// detect 0.5px supports
if (dpr >= 2) {
var fakeBody = document.createElement("body");
var testElement = document.createElement("div");
testElement.style.border = ".5px solid transparent";
fakeBody.appendChild(testElement);
docEl.appendChild(fakeBody);
if (testElement.offsetHeight === 1) {
docEl.classList.add("hairlines");
}
docEl.removeChild(fakeBody);
}
})(window, document);