我要评论效果图
代码
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>水印遮罩</title>
</head>
<style>
.watermark_mask {
position: fixed;
top: 10px;
}
.hello {
width: 500px;
height: 2048px;
margin: 0 auto;
background-color: pink;
}
</style>
<body>
<div class="hello">
hello world
<div style="margin-top: 600px;">hello world 2</div>
<div style="margin-top: 1200px;">hello world 3</div>
</div>
<div id="watermarkid" class="watermark_mask"></div>
<script>
const watermarkid = "watermarkid";
// 水印遮罩函数
function watermarkutils(settings, id) {
//默认设置
var defaultsettings={
watermark_txt: "text",
watermark_x: 10,//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: 55,//水印行数
watermark_cols: 55,//水印列数
watermark_x_space: 10,//水印x轴间隔
watermark_y_space: 10,//水印y轴间隔
watermark_color: '#000000',//水印字体颜色
watermark_alpha: 0.2,//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: 50,//水印宽度
watermark_height: 20,//水印长度
watermark_angle: 25//水印倾斜度数
};
//采用配置项替换默认值，作用类似jquery.extend
if(typeof settings === "object") {
var src = settings;
for(let 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();
// var otemp = document.createelement("div");
//获取页面最大宽度
var page_width = math.max(document.body.scrollwidth,document.body.clientwidth);
//获取页面最大长度
var page_height = math.max(document.body.scrollheight,document.body.clientheight);
//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.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";
//选不中
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";
//mask_div.style.border="solid #eee 1px";
mask_div.style.opacity = defaultsettings.watermark_alpha;
mask_div.style.fontsize = defaultsettings.watermark_fontsize;
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);
try {
// console.log(document.getelementbyid(id), "document.getelementbyid(id)");
document.getelementbyid(id).appendchild(otemp);
} catch(error) {
console.error(error, "遮罩异常");
}
};
watermarkutils({ watermark_txt: "9527", watermark_width: 60, watermark_fontsize: "14px" }, watermarkid);
</script>
</body>
</html>
核心代码
const watermarkid = "watermarkid";
// 水印遮罩函数
function watermarkutils(settings, id) {
//默认设置
var defaultsettings={
watermark_txt: "text",
watermark_x: 10,//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: 55,//水印行数
watermark_cols: 55,//水印列数
watermark_x_space: 10,//水印x轴间隔
watermark_y_space: 10,//水印y轴间隔
watermark_color: '#000000',//水印字体颜色
watermark_alpha: 0.2,//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: 50,//水印宽度
watermark_height: 20,//水印长度
watermark_angle: 25//水印倾斜度数
};
//采用配置项替换默认值，作用类似jquery.extend
if(typeof settings === "object") {
var src = settings;
for(let 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();
// var otemp = document.createelement("div");
//获取页面最大宽度
var page_width = math.max(document.body.scrollwidth,document.body.clientwidth);
//获取页面最大长度
var page_height = math.max(document.body.scrollheight,document.body.clientheight);
//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.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";
//选不中
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";
//mask_div.style.border="solid #eee 1px";
mask_div.style.opacity = defaultsettings.watermark_alpha;
mask_div.style.fontsize = defaultsettings.watermark_fontsize;
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);
try {
// console.log(document.getelementbyid(id), "document.getelementbyid(id)");
document.getelementbyid(id).appendchild(otemp);
} catch(error) {
console.error(error, "遮罩异常");
}
};
// 使用
watermarkutils({ watermark_txt: "9527", watermark_width: 60, watermark_fontsize: "14px" }, watermarkid);
到此这篇关于给原生html中添加水印遮罩层的实现示例的文章就介绍到这了,更多相关html添加水印遮罩层内容请搜索代码网以前的文章或继续浏览下面的相关文章，希望大家以后多多支持代码网！
发表评论