From c5351e5f1d21b848bbaaa403726115d220443074 Mon Sep 17 00:00:00 2001
From: qinxianzhangyao <11053546+qinxianzhangyao@user.noreply.gitee.com>
Date: 星期二, 31 十月 2023 15:36:24 +0800
Subject: [PATCH] qxtj
---
src/utils/devicePixelRatio.js | 61 +++++++++---------------------
1 files changed, 19 insertions(+), 42 deletions(-)
diff --git a/src/utils/devicePixelRatio.js b/src/utils/devicePixelRatio.js
index 73788f3..d1bba32 100644
--- a/src/utils/devicePixelRatio.js
+++ b/src/utils/devicePixelRatio.js
@@ -1,44 +1,21 @@
-class devicePixelRatio {
- /* 鑾峰彇绯荤粺绫诲瀷 */
- getSystem() {
- const agent = navigator.userAgent.toLowerCase();
- const isMac = /macintosh|mac os x/i.test(navigator.userAgent);
- if (isMac) return false;
- // 鐩墠鍙拡瀵� win 澶勭悊锛屽叾瀹冪郴缁熸殏鏃犺鎯呭喌锛岄渶瑕佸垯缁х画鍦ㄦ娣诲姞鍗冲彲
- if (agent.indexOf("windows") >= 0) return true;
+export const monitorZoom = () => {
+ let ratio = 0,
+ screen = window.screen,
+ ua = navigator.userAgent.toLowerCase();
+ if (window.devicePixelRatio !== undefined) {
+ ratio = window.devicePixelRatio;
+ } else if (~ua.indexOf("msie")) {
+ if (screen.deviceXDPI && screen.logicalXDPI) {
+ ratio = screen.deviceXDPI / screen.logicalXDPI;
}
- /* 鐩戝惉鏂规硶鍏煎鍐欐硶 */
- addHandler(element, type, handler) {
- if (element.addEventListener) {
- element.addEventListener(type, handler, false);
- } else if (element.attachEvent) {
- element.attachEvent("on" + type, handler);
- } else {
- element["on" + type] = handler;
- }
- }
- /* 鏍℃娴忚鍣ㄧ缉鏀炬瘮渚� */
- correct() {
- // 椤甸潰devicePixelRatio锛堣澶囧儚绱犳瘮渚嬶級鍙樺寲鍚庯紝璁＄畻椤甸潰body鏍囩zoom淇敼鍏跺ぇ灏忥紝鏉ユ姷娑坉evicePixelRatio甯︽潵鐨勫彉鍖�
- document.getElementsByTagName("body")[0].style.zoom =
- 1 / window.devicePixelRatio;
- }
- /* 鐩戝惉椤甸潰缂╂斁 */
- watch() {
- const that = this;
- // 娉ㄦ剰: 杩欎釜鏂规硶鏄В鍐冲叏灞�鏈変袱涓獁indow.resize
- that.addHandler(window, "resize", function () {
- that.correct(); // 閲嶆柊鏍℃娴忚鍣ㄧ缉鏀炬瘮渚�
- });
- }
- /* 鍒濆鍖栭〉闈㈡瘮渚� */
- init() {
- const that = this;
- // 鍒ゆ柇璁惧锛屽彧鍦� win 绯荤粺涓嬫牎姝ｆ祻瑙堝櫒缂╂斁姣斾緥
- if (that.getSystem()) {
- that.correct(); // 鏍℃娴忚鍣ㄧ缉鏀炬瘮渚�
- that.watch(); // 鐩戝惉椤甸潰缂╂斁
- }
- }
+ } else if (
+ window.outerWidth !== undefined &&
+ window.innerWidth !== undefined
+ ) {
+ ratio = window.outerWidth / window.innerWidth;
}
- export default devicePixelRatio;
\ No newline at end of file
+ if (ratio) {
+ ratio = Math.round(ratio * 100);
+ }
+ return ratio;
+};
\ No newline at end of file
--
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