100字范文 > 生成html水印兼容ie8 ie兼容性问题与解决办法移动端水印给出的建议

生成html水印兼容ie8 ie兼容性问题与解决办法移动端水印给出的建议

时间：2020-08-23 02:40:49

首先放上两段代码 watermark.js

与其兼容方式扩展pointer_events_polyfill.js

watermark.js ↓↓

// 水印(function(watermark){window.watermarkdivs = [];// 加载水印var loadMark = function(settings) {var defaultSettings={watermark_txt:"测试水印",watermark_x:20,//水印起始位置x轴坐标watermark_y:20,//水印起始位置Y轴坐标watermark_rows:0,//水印行数watermark_cols:0,//水印列数watermark_x_space:100,//水印x轴间隔watermark_y_space:50,//水印y轴间隔watermark_font:'微软雅黑',//水印字体watermark_color:'black',//水印字体颜色watermark_fontsize:'18px',//水印字体大小watermark_alpha:0.15,//水印透明度，要求设置在大于等于0.003watermark_width:150,//水印宽度watermark_height:100,//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.extendif(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];}}if (window.watermarkdivs && window.watermarkdivs.length > 0) {document.body.removeChild(document.getElementById("otdivid"));window.watermarkdivs = [];}//获取页面最大宽度var page_width = Math.max(document.body.scrollWidth,document.body.clientWidth);//获取页面最大长度var page_height = Math.max(document.body.scrollHeight,document.body.clientHeight);// var page_height = Math.max(document.body.scrollTop,document.body.clientHeight);// 创建文档碎片var oTemp = document.createDocumentFragment();//创建水印外壳divvar otdiv = document.getElementById("otdivid");if(!otdiv){otdiv =document.createElement('div');otdiv.id="otdivid";otdiv.style.pointerEvents = "none";document.body.appendChild(otdiv);}//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');var oText=document.createTextNode(defaultSettings.watermark_txt);mask_div.appendChild(oText);// 设置水印相关属性startmask_div.id = 'mask_div' + i + j;mask_div.onselectstart="return false";//设置水印div倾斜显示mask_div.style.filter = "progid:DXImageTransform.Microsoft.Matrix(sizingMethod='auto expand', M11=0.96593, M12=0.25882, M21=-0.25882, M22=0.96593) progid:DXImageTransform.Microsoft.Alpha(opacity=15)";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";//选不中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.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";//设置水印相关属性end//附加到文档碎片中otdiv.appendChild(mask_div);otdiv.style.cursor = "default";window.watermarkdivs.push(otdiv); //控制页面大小变化时水印字体};};//一次性添加到document中document.body.appendChild(oTemp);};watermark.init = function(settings) {window.onload = function() {loadMark(settings);};window.onresize = function() {loadMark(settings);};};watermark.load = function(settings){loadMark(settings);};})(window.watermark = {} );

pointer_events_polyfill.js ↓↓

/** Pointer Events Polyfill: Adds support for the style attribute* "pointer-events: none" to browsers without this feature (namely, IE).* (c) , Kent Mewhort, licensed under BSD. See LICENSE.txt for details.*/// constructorfunction PointerEventsPolyfill(options) {// set defaultsthis.options = {selector: '*',mouseEvents: ['click', 'dblclick', 'mousedown', 'mouseup'],usePolyfillIf: function() {// if (navigator.appName == 'Microsoft Internet Explorer')// {/* jshint ignore:start */var agent = navigator.userAgent;// if (agent.match(/MSIE ([0-9]{1,}[\.0-9]{0,})/) != null) {//var version = parseFloat(RegExp.jQ1);//if (version < 11)return true;// }/* jshint ignore:end */// }// return false;}};if (options) {var obj = this;jQ.each(options, function(k, v) {obj.options[k] = v;});}if (this.options.usePolyfillIf())this.register_mouse_events();}/*** singleton initializer** @param {object} optionsPolyfill options.* @return {object} The polyfill object.*/PointerEventsPolyfill.initialize = function(options) {/* jshint ignore:start */if (PointerEventsPolyfill.singleton == null)PointerEventsPolyfill.singleton = new PointerEventsPolyfill(options);/* jshint ignore:end */return PointerEventsPolyfill.singleton;};/*** handle mouse events w/ support for pointer-events: none*/PointerEventsPolyfill.prototype.register_mouse_events = function() {// register on all elements (and all future elements) matching the selectorjQ(document).on(this.options.mouseEvents.join(' '),this.options.selector,function(e) {if (jQ(this).css('pointerEvents') == 'none') {// peak at the element belowvar origDisplayAttribute = jQ(this).css('display');jQ(this).css('display', 'none');var underneathElem = document.elementFromPoint(e.clientX,e.clientY);if (origDisplayAttribute)jQ(this).css('display', origDisplayAttribute);elsejQ(this).css('display', '');// fire the mouse event on the element belowe.target = underneathElem;jQ(underneathElem).trigger(e);return false;}return true;});};