vue给页面添加水印，或者给iframe添加水印

给div设置id=“con_min”

<template>
	<div class="con_min" id="con_min">
	     <div class="con_body">
	       <iframe frameborder="0" id="myframe" scrolling="no" hspace="0" :src="url" style="width: 100%;height: 1000px;margin-top: -32px;"></iframe>
	     </div>
	</div>
</template>

mounted() {
      this.ready()
},
methods:{
	ready(){
	 ///水印
	 var that = this;
	 $(document).ready(function(e) {　　
	 	var iframe = document.getElementById("myframe");
	 	if(iframe.attachEvent) {
	 		iframe.attachEvent("onload", function() {
	 			//iframe加载完成后你需要进行的操作
	 			that.watermark(that.getName());
	 		});
	 	} else {
	 		iframe.onload = function() {
	 			//iframe加载完成后你需要进行的操作
	 			that.watermark(that.getName());
	 		};
	 	}
	 })
	},
	getName(){ // 获取人名电话
	 var that = this;
	 var name = localStorage.getItem('name');
	 var d = new Date();
	 var year = d.getFullYear();
	 var month = that.change(d.getMonth() + 1);
	 var day = that.change(d.getDate());
	 var hour = that.change(d.getHours());
	 var minute = that.change(d.getMinutes());
	 var second = that.change(d.getSeconds());
	
	 var time = name +'  ' + year + '年' + month + '月' + day + '日 ' + hour + '时' + minute + '分' + second + '秒';
	 return time;
	},
	change(t) { // 时间格式转换
	if(t < 10) {
		return "0" + t;
	} else {
		return t;
	}
	},
	watermark(settings) { // 水印
	//默认设置
	var defaultSettings = {
		watermark_txt: settings,
		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: 0, //水印行数
		watermark_cols: 0, //水印列数
		watermark_x_space: 50, //水印x轴间隔
		watermark_y_space: 50, //水印y轴间隔
		watermark_color: '#e1e6e8', //水印字体颜色
		watermark_alpha: 0.4, //水印透明度
		watermark_fontsize: '14px', //水印字体大小
		watermark_font: '微软雅黑', //水印字体
		watermark_width: 166, //水印宽度
		watermark_height: 100, //水印长度
		watermark_angle: 20 //水印倾斜度数
	};
	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 page_width = 1000;
	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;
	page_height = Math.max(page_height, window.innerHeight - 30);
	//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";
			//让水印不遮挡页面的点击事件
			mask_div.style.pointerEvents = 'none';
			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);
		};
	};
	 var shuiyinbox = document.getElementById('con_min')
	shuiyinbox.appendChild(oTemp);
	},
},

 

话不多说看效果

标签：vue,watermark,mask,水印,添加,var,div,defaultSettings
来源： https://blog.csdn.net/douguaiwo521521/article/details/115460423