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ChuXun
2026-01-05 14:20:47 +08:00
parent ec3b5157fe
commit ab59c89fe4
41 changed files with 512 additions and 4572 deletions
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84
学生学习页面_files/watermark.js.下载
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function watermark(settings) {
//默认设置
var defaultSettings = {
watermarl_element: "LAY_app_body",
watermark_txt: "",
watermark_x: 10,//水印起始位置x轴坐标
watermark_y: 10,//水印起始位置Y轴坐标
watermark_rows: 2000,//水印行数
watermark_cols: 2000,//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: '#d7d7d7',//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: 400,//水印宽度
watermark_height: 50,//水印长度
watermark_angle: 30//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();
var maskElement = document.getElementById(defaultSettings.watermarl_element) || document.body;
//获取页面最大宽度
var page_width = Math.max(maskElement.scrollWidth, maskElement.clientWidth);
//获取页面最大高度
var page_height = Math.max(maskElement.scrollHeight, maskElement.clientHeight, maskElement.scrollTop);
//水印数量自适应元素区域尺寸
defaultSettings.watermark_cols = Math.ceil(page_width / (defaultSettings.watermark_x_space + defaultSettings.watermark_width));
defaultSettings.watermark_rows = Math.ceil(page_height / (defaultSettings.watermark_y_space + defaultSettings.watermark_height));
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));
mask_div.innerHTML = (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 = "10"; // 9999
// pointer-events:none 让水印不遮挡页面的点击事件
mask_div.style.pointerEvents = 'none';
// 设置边框
// mask_div.style.border="solid #eee 1px";
// 兼容IE9以下的透明度设置
mask_div.style.filter = "alpha(opacity=50)";
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);
}
}
maskElement.appendChild(oTemp);
}