标签:style watermark mask 水印 js 添加 div defaultSettings
<!DOCTYPE html> <html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <style> #userName { width: 350px; height: 100px; } </style> </head>
<body>
<div id="userName"> 如果需要全部都添加水印,建议用这个盒子包裹起来 </div>
<script src="jquery-1.12.4.js"></script> //记得引入你的jQuery路径 <script> function watermark(settings) { //默认设置 var defaultSettings = { watermark_txt: "text", watermark_x: 20,//水印起始位置x轴坐标 watermark_y: 20,//水印起始位置Y轴坐标 watermark_rows: 20,//水印行数 watermark_cols: 20,//水印列数 watermark_x_space: 100,//水印x轴间隔 watermark_y_space: 50,//水印y轴间隔 watermark_color: '#aaa',//水印字体颜色 watermark_alpha: 0.4,//水印透明度 watermark_fontsize: '15px',//水印字体大小 watermark_font: '微软雅黑',//水印字体 watermark_width: 180,//水印宽度 watermark_height: 100,//水印长度 watermark_angle: 15//水印倾斜度数 }; //采用配置项替换默认值,作用类似jquery.extend if (arguments.length === 1 && typeof arguments[0] === "object") { var src = arguments[0] || {}; for (key in src) { if (src[key] && defaultSettings[key] && src[key] === defaultSettings[key]) continue; else if (src[key]) defaultSettings[key] = src[key]; } }
var oTemp = document.createDocumentFragment();
//获取页面最大宽度 var page_width = Math.max(document.body.scrollWidth, document.body.clientWidth); var cutWidth = page_width * 0.0150; var page_width = page_width - cutWidth; //获取页面最大高度 var page_height = Math.max(document.body.scrollHeight, document.body.clientHeight) + 450; // var page_height = document.body.scrollHeight+document.body.scrollTop; //如果将水印列数设置为0,或水印列数设置过大,超过页面最大宽度,则重新计算水印列数和水印x轴间隔 if (defaultSettings.watermark_cols == 0 || (parseInt(defaultSettings.watermark_x + defaultSettings.watermark_width * defaultSettings.watermark_cols + defaultSettings.watermark_x_space * (defaultSettings.watermark_cols - 1)) > page_width)) { defaultSettings.watermark_cols = parseInt((page_width - defaultSettings.watermark_x + defaultSettings.watermark_x_space) / (defaultSettings.watermark_width + defaultSettings.watermark_x_space)); defaultSettings.watermark_x_space = parseInt((page_width - defaultSettings.watermark_x - defaultSettings.watermark_width * defaultSettings.watermark_cols) / (defaultSettings.watermark_cols - 1)); } //如果将水印行数设置为0,或水印行数设置过大,超过页面最大长度,则重新计算水印行数和水印y轴间隔 if (defaultSettings.watermark_rows == 0 || (parseInt(defaultSettings.watermark_y + defaultSettings.watermark_height * defaultSettings.watermark_rows + defaultSettings.watermark_y_space * (defaultSettings.watermark_rows - 1)) > page_height)) { defaultSettings.watermark_rows = parseInt((defaultSettings.watermark_y_space + page_height - defaultSettings.watermark_y) / (defaultSettings.watermark_height + defaultSettings.watermark_y_space)); defaultSettings.watermark_y_space = parseInt(((page_height - defaultSettings.watermark_y) - defaultSettings.watermark_height * defaultSettings.watermark_rows) / (defaultSettings.watermark_rows - 1)); } var x; var y; for (var i = 0; i < defaultSettings.watermark_rows; i++) { y = defaultSettings.watermark_y + (defaultSettings.watermark_y_space + defaultSettings.watermark_height) * i; for (var j = 0; j < defaultSettings.watermark_cols; j++) { x = defaultSettings.watermark_x + (defaultSettings.watermark_width + defaultSettings.watermark_x_space) * j;
var mask_div = document.createElement('div'); mask_div.id = 'mask_div' + i + j; mask_div.className = 'mask_div'; mask_div.appendChild(document.createTextNode(defaultSettings.watermark_txt)); //设置水印div倾斜显示 mask_div.style.webkitTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)"; mask_div.style.MozTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)"; mask_div.style.msTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)"; mask_div.style.OTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)"; mask_div.style.transform = "rotate(-" + defaultSettings.watermark_angle + "deg)"; mask_div.style.visibility = ""; mask_div.style.position = "absolute"; mask_div.style.left = x + 'px'; mask_div.style.top = y + 'px'; mask_div.style.overflow = "hidden"; mask_div.style.zIndex = "9999"; mask_div.style.pointerEvents = 'none';//pointer-events:none 让水印不遮挡页面的点击事件 //mask_div.style.border="solid #eee 1px"; mask_div.style.opacity = defaultSettings.watermark_alpha; mask_div.style.fontSize = defaultSettings.watermark_fontsize; mask_div.style.fontFamily = defaultSettings.watermark_font; mask_div.style.color = defaultSettings.watermark_color; mask_div.style.textAlign = "center"; mask_div.style.width = defaultSettings.watermark_width + 'px'; mask_div.style.height = defaultSettings.watermark_height + 'px'; mask_div.style.display = "block"; oTemp.appendChild(mask_div); }; }; document.body.appendChild(oTemp); } var userName = $('#userName').val() watermark({ watermark_txt: '要添加到背景水印的内容' + userName })
</script> </body>
</html>
标签:style,watermark,mask,水印,js,添加,div,defaultSettings 来源: https://www.cnblogs.com/lljun/p/12048367.html
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