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'});

}