闲来无事,把项目里很土的弹窗,改成了遮罩层显示,感觉效果好点了。上代码:
父页面:
复制代码 代码如下:
<div id='newDiv1' style="display: none;">
<%@include file='/WEB-INF/jsp/infobackup/martyr/printCertDia.jsp' %>
<%--<jsp:include page="/WEB-INF/jsp/infobackup/martyr/printCertDia.jsp" flush=”true”/> --%>
</div>
printCertDia.jsp 便是要显示的最上层jsp. 如果用jsp:include 页面便会报错,至于为什么还没研究,可能和加载顺序有关。
(在给标签变量取名字时候,如果变量和id名一样时候,js也会报错,要避免)
在父页面添加触发显示遮罩层js:
在这里创建一个div和body一样大小,这样就可以把整个页面全部盖住了。
style.zIndex 来控制覆盖的先后顺序(层级)
style.filter ,style.opacity 控制显示透明°。
复制代码 代码如下:
//mask遮罩层
var newMask = document.createElement("div");
newMask.id = m;
newMask.style.position = "absolute";
newMask.style.zIndex = "1";
_scrollWidth = Math.max(document.body.scrollWidth, document.documentElement.scrollWidth);
_scrollHeight = Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
newMask.style.width = _scrollWidth + "px";
newMask.style.height = _scrollHeight + "px";
newMask.style.top = "0px";
newMask.style.left = "0px";
newMask.style.background = "#666";
newMask.style.filter = "alpha(opacity=40)";
newMask.style.opacity = "0.40";
document.body.appendChild(newMask);
js控制父页面已经定义好的div显示:
复制代码 代码如下:
newDiv=document.getElementById("newDiv1");
// var newDiv = document.createElement("div");
// newDiv.id = _id;
newDiv.style.position = "absolute";
newDiv.style.zIndex = "9999";
newDivWidth = 700;
newDivHeight = 600;
newDiv.style.width = newDivWidth + "px";
newDiv.style.height = newDivHeight + "px";
newDiv.style.top = (document.body.scrollTop + document.body.clientHeight / 2 - newDivHeight / 2) + "px";
newDiv.style.left = (document.body.scrollLeft + document.body.clientWidth / 2 - newDivWidth / 2) + "px";
newDiv.style.background = "#F7F7EF";
newDiv.style.border = "1px solid #860001";
newDiv.style.padding = "5px";
newDiv.style.display='';
js控制父页面div滚动居中:
attachEvent ,addEventListener 对scroll 添加处理事件 newDivCenter
复制代码 代码如下:
function newDivCenter() {
newDiv.style.top = (document.body.scrollTop + document.body.clientHeight / 2 - newDivHeight / 2) + "px";
newDiv.style.left = (document.body.scrollLeft + document.body.clientWidth / 2 - newDivWidth / 2) + "px";
}
if (document.all) {
window.attachEvent("onscroll", newDivCenter);
}
else {
window.addEventListener('scroll', newDivCenter, false);
}
动态给父页面div添加关闭图层和遮罩层(需要修改):
复制代码 代码如下:
var newA = document.createElement("a");
newA.href = "#";
newA.innerHTML = "关闭";
newA.onclick = function() {
if (document.all) {
window.detachEvent("onscroll", newDivCenter);
}
else {
window.removeEventListener('scroll', newDivCenter, false);
}
document.body.removeChild(docEle("newDiv1"));
document.body.removeChild(docEle(m));
document.getElementById("certImg").style.display='';
return false;
}
newDiv.appendChild(newA);