1 <html> 2 <head> 3 <script type="text/javascript" src="../jquery-1.7.2.min.js"></script> 4 <script type="text/javascript"> 5 //调整iframe高度 6 function iFrameHeight() { 7 var ifm = document.getElementById("iframepage"); 8 if (ifm != null) { 9 ifm.height = window.screen.availHeight; 10 } 11 } 12 </script> 13 </head> 14 <body> 15 16 <script> 17 //加水印方法 18 var mask_div = document.createElement('div'); 19 mask_div.id = 'mask_div1'; 20 mask_div.style.position = "absolute"; 21 mask_div.style.left = '20px'; 22 mask_div.style.top = '20px'; 23 mask_div.style.overflow = "hidden"; 24 mask_div.style.zIndex = "9999"; 25 mask_div.style.opacity = 0.3; 26 document.body.appendChild(mask_div); 27 28 function watermark(settings) { 29 30 //默认设置 31 var defaultSettings={ 32 watermark_txt:"text", 33 watermark_x:20,//水印起始位置x轴坐标 34 watermark_y:20,//水印起始位置Y轴坐标 35 watermark_rows:20,//水印行数 36 watermark_cols:20,//水印列数 37 watermark_x_space:100,//水印x轴间隔 38 watermark_y_space:50,//水印y轴间隔 39 watermark_color:'#000000',//水印字体颜色 40 watermark_alpha:0.3,//水印透明度 41 watermark_fontsize:'18px',//水印字体大小 42 watermark_font:'微软雅黑',//水印字体 43 watermark_width:120,//水印宽度 44 watermark_height:80,//水印长度 45 watermark_angle:15//水印倾斜度数 46 }; 47 //采用配置项替换默认值，作用类似jquery.extend 48 if(arguments.length===1&&typeof arguments[0] ==="object" ) 49 { 50 var src=arguments[0]||{}; 51 for(key in src) 52 { 53 if(src[key]&&defaultSettings[key]&&src[key]===defaultSettings[key]) 54 continue; 55 else if(src[key]) 56 defaultSettings[key]=src[key]; 57 } 58 } 59 60 var oTemp = document.createDocumentFragment(); 61 62 //获取页面最大宽度 63 var page_width = Math.max(document.body.scrollWidth,document.body.clientWidth); 64 //获取页面最大长度 65 var page_height = Math.max(document.body.scrollHeight,document.body.clientHeight); 66 67 //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 68 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)) { 69 defaultSettings.watermark_cols = parseInt((page_width-defaultSettings.watermark_x+defaultSettings.watermark_x_space) / (defaultSettings.watermark_width + defaultSettings.watermark_x_space)); 70 defaultSettings.watermark_x_space = parseInt((page_width - defaultSettings.watermark_x - defaultSettings.watermark_width * defaultSettings.watermark_cols) / (defaultSettings.watermark_cols - 1)); 71 } 72 //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 73 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)) { 74 defaultSettings.watermark_rows = parseInt((defaultSettings.watermark_y_space + page_height - defaultSettings.watermark_y) / (defaultSettings.watermark_height + defaultSettings.watermark_y_space)); 75 defaultSettings.watermark_y_space = parseInt(((page_height - defaultSettings.watermark_y) - defaultSettings.watermark_height * defaultSettings.watermark_rows) / (defaultSettings.watermark_rows - 1)); 76 } 77 var x; 78 var y; 79 for (var i = 0; i < defaultSettings.watermark_rows; i++) { 80 y = defaultSettings.watermark_y + (defaultSettings.watermark_y_space + defaultSettings.watermark_height) * i; 81 for (var j = 0; j < defaultSettings.watermark_cols; j++) { 82 x = defaultSettings.watermark_x + (defaultSettings.watermark_width + defaultSettings.watermark_x_space) * j; 83 84 var mask_div = document.createElement('div'); 85 mask_div.id = 'mask_div' + i + j; 86 mask_div.appendChild(document.createTextNode(defaultSettings.watermark_txt)); 87 //设置水印div倾斜显示 88 mask_div.style.webkitTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)"; 89 mask_div.style.MozTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)"; 90 mask_div.style.msTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)"; 91 mask_div.style.OTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)"; 92 mask_div.style.transform = "rotate(-" + defaultSettings.watermark_angle + "deg)"; 93 mask_div.style.visibility = ""; 94 mask_div.style.position = "absolute"; 95 mask_div.style.left = x + 'px'; 96 mask_div.style.top = y + 'px'; 97 mask_div.style.overflow = "hidden"; 98 mask_div.style.zIndex = "9999"; 99 //mask_div.style.border="solid #eee 1px"; 100 mask_div.style.opacity = defaultSettings.watermark_alpha; 101 mask_div.style.fontSize = defaultSettings.watermark_fontsize; 102 mask_div.style.fontFamily = defaultSettings.watermark_font; 103 mask_div.style.color = defaultSettings.watermark_color; 104 mask_div.style.textAlign = "center"; 105 mask_div.style.width = defaultSettings.watermark_width + 'px'; 106 mask_div.style.height = defaultSettings.watermark_height + 'px'; 107 mask_div.style.display = "block"; 108 mask_div.style.pointerEvents = "none"; //禁止水印被复制并防止遮挡【实体虚化】 109 oTemp.appendChild(mask_div); 110 }; 111 }; 112 document.body.appendChild(oTemp); 113 } 114 115 window.onload=function(){ 116 watermark({ watermark_txt: "测试" }); 117 }; 118 119 //window.onresize = function () { 120 // watermark({ watermark_txt: "测试",watermark_width:50 }) 121 //}; 122 </SCRIPT> 123 <div> 124 <iframe src="http://www.baidu.com" id="iframepage" 125 name="iframepage" frameBorder=0 scrolling=no width="100%" 126 onLoad="iFrameHeight();"></iframe> 127 </div> 128 </body> 129 </html>
