js vue 页面添加水印
vue 微信页面添加水印
this.$nextTick(function() {
watermark({ watermark_txt: "<div>" + '123' + "</div><div>" + '456' + "</div>"});
})
function watermark(settings) {
//默认设置
var defaultSettings={
watermark_txt:"text",
watermark_x:70,//水印起始位置x轴坐标
watermark_y:10,//水印起始位置Y轴坐标
watermark_rows:100,//水印行数
watermark_cols:2,//水印列数
watermark_x_space:60,//水印x轴间隔
watermark_y_space:40,//水印y轴间隔
watermark_color:'#aaa',//水印字体颜色
watermark_alpha:0.3,//水印透明度
watermark_fontsize:'.26rem',//水印字体大小
watermark_width:60,//水印宽度
watermark_height:60,//水印高度
watermark_angle:10//水印倾斜度数
};
//采用配置项替换默认值,作用类似jquery.extend
if(arguments.length===1&&typeof arguments[0] ==="object" )
{
var src=arguments[0]||{};
for(key in src)
{
if(src[key]&&defaultSettings[key]&&src[key]===defaultSettings[key])
continue;
else if(src[key])
defaultSettings[key]=src[key];
}
}
var oTemp = document.createDocumentFragment();
//获取页面最大宽度
var page_width = Math.max(document.body.scrollWidth,document.body.clientWidth) - 30;
//获取页面最大高度
// var page_height = Math.max(document.body.scrollHeight,document.body.clientHeight);
var page_height = Math.max($("#iContainer").get(0).clientHeight,document.body.clientHeight,$("#iContainer").get(0).scrollHeight) - 20;
// var page_height = $("#iContainer").get(0).scrollHeight;
// console.log(page_height,$("#iContainer").outerHeight());
//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.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 = "9999999";
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.lineHeight = '.32rem';
mask_div.style.display = "inline-block";
oTemp.appendChild(mask_div);
};
};
console.log($('.mask_div:odd'));
document.body.appendChild(oTemp);
$('.mask_div:odd').css({left:defaultSettings.watermark_x + 'px'});
$('.mask_div:even').css({right:defaultSettings.watermark_x + 'px'});
}