let WOTER_MAKRKE_LIST = [];
|
export function watermark(settings) {
|
//默认设置
|
var defaultSettings = {
|
watermark_txt: "text",
|
watermark_x: 50,//水印起始位置x轴坐标
|
watermark_y: 50,//水印起始位置Y轴坐标
|
watermark_rows: 5,//水印行数
|
watermark_cols: 10,//水印列数
|
watermark_x_space: 50,//水印x轴间隔
|
watermark_y_space: 100,//水印y轴间隔
|
watermark_color: '#aaa',//水印字体颜色
|
watermark_alpha: 0.5,//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: 300,//水印宽度
|
watermark_height: 80,//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 (var keyS in src) {
|
if (src[keyS] && defaultSettings[keyS] && src[keyS] === defaultSettings[keyS])
|
continue;
|
else if (src[keyS])
|
defaultSettings[keyS] = src[keyS];
|
}
|
}
|
|
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) + 650;
|
// 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) - 1);
|
defaultSettings.watermark_x_space = parseInt((page_width - defaultSettings.watermark_x - defaultSettings.watermark_width * defaultSettings.watermark_cols) / (defaultSettings.watermark_cols - 1) - 10);
|
}
|
//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;
|
WOTER_MAKRKE_LIST.push(mask_div.id);
|
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);
|
}
|
export function removewatermark() {
|
WOTER_MAKRKE_LIST.forEach(item => {
|
const DEV_ID_ITEM = document.getElementById(item);
|
document.body.removeChild(DEV_ID_ITEM);
|
})
|
WOTER_MAKRKE_LIST = []
|
}
|
