次のコードは、ページの読み込み時にポップアップ メッセージを表示し、Cookie を作成して、ユーザーがページに戻ったときにポップアップ メッセージが一度も表示されないようにします。Cookie の寿命は時間に基づいています。このコードを変更して、Cookie の有効期間がユーザー セッションまたは 1 日に基づくようにしたいと考えています。ガイダンスやコードスニペットは素晴らしいでしょう。ありがとう。
コードデモへのリンク: http://www.queness.com/post/77/simple-jquery-modal-window-tutorial
<HTML xmlns="http://www.w3.org/1999/xhtml"><HEAD>
<META content="text/html; charset=windows-1252" http-equiv=Content-Type>
<SCRIPT type=text/javascript src="jquery-latest.pack.js"></SCRIPT>
<SCRIPT>
$(document).ready(function() {
//if the cookie hasLaunch is not set, then show the modal window
if (!readCookie('hasLaunch')) {
//launch it
launchWindow('#dialog');
//then set the cookie, so next time the modal won't be displaying again.
createCookie('hasLaunch', 1, 365);
}
//if close button is clicked
$('.window #close').click(function () {
$('#mask').hide();
$('.window').hide();
});
//if mask is clicked
$('#mask').click(function () {
$(this).hide();
$('.window').hide();
});
$(window).resize(function () {
var box = $('#boxes .window');
//Get the screen height and width
var maskHeight = $(document).height();
var maskWidth = $(window).width();
//Set height and width to mask to fill up the whole screen
$('#mask').css({'width':maskWidth,'height':maskHeight});
//Get the window height and width
var winH = $(window).height();
var winW = $(window).width();
//Set the popup window to center
box.css('top', winH/2 - box.height()/2);
box.css('left', winW/2 - box.width()/2);
});
});
function createCookie(name,value,days) {
if (days) {
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
var expires = "; expires="+date.toGMTString();
}
else var expires = "";
document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
return null;
}
function launchWindow(id) {
//Get the screen height and width
var maskHeight = $(document).height();
var maskWidth = $(window).width();
//Set heigth and width to mask to fill up the whole screen
$('#mask').css({'width':maskWidth,'height':maskHeight});
//transition effect
$('#mask').fadeIn(1000);
$('#mask').fadeTo("slow",0.8);
//Get the window height and width
var winH = $(window).height();
var winW = $(window).width();
//Set the popup window to center
$(id).css('top', winH/2-$(id).height());
$(id).css('left', winW/2-$(id).width()/2);
//transition effect
$(id).fadeIn(2000);
}
</SCRIPT>
<STYLE>
body {
FONT-FAMILY: verdana; FONT-SIZE: 15px
}
A {
COLOR: #333; TEXT-DECORATION: none
}
A:hover {
COLOR: #ccc; TEXT-DECORATION: none
}
#mask {
Z-INDEX: 9000; POSITION: absolute; BACKGROUND-COLOR: #000; DISPLAY: none; TOP: 0px; LEFT: 0px
}
#boxes .window {
Z-INDEX: 9999; POSITION: fixed; PADDING-BOTTOM: 20px; PADDING-LEFT: 20px; WIDTH: 640px; PADDING-RIGHT: 20px; DISPLAY: none; HEIGHT: 385px; PADDING-TOP: 20px
}
#boxes #dialog {
PADDING-BOTTOM: 10px; BACKGROUND-COLOR: #ffffff; PADDING-LEFT: 10px; WIDTH: 640px; PADDING-RIGHT: 10px; HEIGHT: 385px; PADDING-TOP: 10px
}
.redbox {
color: #F00; font-weight: bold;
}
.bold {
font-weight: bold;
}
</STYLE>
<div id=boxes>
<div id=dialog class=window><span class="redbox"> pop up message <A
href="#" class="bold"> Ok </a> </div>
<div id=mask>
</div></div>
</html>