【弹出层插件】JQuery BlockUI 强大的弹出层遮罩插件
插件地址：http://jquery.malsup.com/block/#overview
插件Demo：http://jquery.malsup.com/block/#demos
插件下载：http://jquery.malsup.com/block/#download
一、介绍
它是Jquery框架的一个插件，专门用来做提示框、模式窗口的的一个插件；它也很方便快捷的使用至Ajax中；
截图查看效果：
下面是一些简单的应用：
$.blockUI();
$.blockUI({ message: '<h1><img src="busy.gif" /> Just a moment...</h1>' });
$.blockUI({ css: { backgroundColor: '#f00', color: '#fff'} });
关闭卸载它（关闭弹出层）：
$.unblockUI();
以及BlockUI在AJAX中的使用：
$(document).ajaxStart($.blockUI).ajaxStop($.unblockUI);
二、其他使用：
<script type="text/javascript">
// unblock when ajax activity stops
$(document).ajaxStop($.unblockUI);
function test() {
$.ajax({ url: 'wait.php', cache: false });
}
$(document).ready(function() {
$('#pageDemo1').click(function() {
$.blockUI();
test();
});
$('#pageDemo2').click(function() {
$.blockUI({ message: '<h1><img src="busy.gif" /> Just a moment...</h1>' });
test();
});
$('#pageDemo3').click(function() {
$.blockUI({ css: { backgroundColor: '#f00', color: '#fff' } });
test();
});
$('#pageDemo4').click(function() {
$.blockUI({ message: $('#domMessage') });
test();
});
});
</script>
...
<div id="domMessage" style="display:none;">
<h1>We are processing your request. Please be patient.</h1>
</div>
// unblock when ajax activity stops
$(document).ajaxStop($.unblockUI);
function test() {
$.ajax({ url: 'wait.php', cache: false });
}
$(document).ready(function() {
$('#pageDemo1').click(function() {
$.blockUI();
test();
});
$('#pageDemo2').click(function() {
$.blockUI({ message: '<h1><img src="busy.gif" /> Just a moment...</h1>' });
test();
});
$('#pageDemo3').click(function() {
$.blockUI({ css: { backgroundColor: '#f00', color: '#fff' } });
test();
});
$('#pageDemo4').click(function() {
$.blockUI({ message: $('#domMessage') });
test();
});
});
</script>
...
<div id="domMessage" style="display:none;">
<h1>We are processing your request. Please be patient.</h1>
</div>
<script type="text/javascript">
$(document).ready(function() {
$('#blockButton').click(function() {
$('div.test').block({ message: null });
});
$('#blockButton2').click(function() {
$('div.test').block({
message: '<h1>Processing</h1>',
css: { border: '3px solid #a00' }
});
});
$('#unblockButton').click(function() {
$('div.test').unblock();
});
$('a.test').click(function() {
alert('link clicked');
return false;
});
});
</script>
$(document).ready(function() {
$('#blockButton').click(function() {
$('div.test').block({ message: null });
});
$('#blockButton2').click(function() {
$('div.test').block({
message: '<h1>Processing</h1>',
css: { border: '3px solid #a00' }
});
});
$('#unblockButton').click(function() {
$('div.test').unblock();
});
$('a.test').click(function() {
alert('link clicked');
return false;
});
});
</script>
三、Simple Modal Dialog Example
<script type="text/javascript">
$(document).ready(function() {
$('#test').click(function() {
$.blockUI({ message: $('#question'), css: { width: '275px' } });
});
$('#yes').click(function() {
// update the block message
$.blockUI({ message: "<h1>Remote call in progress...</h1>" });
$.ajax({
url: 'wait.php',
cache: false,
complete: function() {
// unblock when remote call returns
$.unblockUI();
}
});
});
$('#no').click(function() {
$.unblockUI();
return false;
});
});
</script>
...
<input id="test" type="submit" value="Show Dialog" />
...
<div id="question" style="display:none; cursor: default">
<h1>Would you like to contine?.</h1>
<input type="button" id="yes" value="Yes" />
<input type="button" id="no" value="No" />
</div>
$(document).ready(function() {
$('#test').click(function() {
$.blockUI({ message: $('#question'), css: { width: '275px' } });
});
$('#yes').click(function() {
// update the block message
$.blockUI({ message: "<h1>Remote call in progress...</h1>" });
$.ajax({
url: 'wait.php',
cache: false,
complete: function() {
// unblock when remote call returns
$.unblockUI();
}
});
});
$('#no').click(function() {
$.unblockUI();
return false;
});
});
</script>
...
<input id="test" type="submit" value="Show Dialog" />
...
<div id="question" style="display:none; cursor: default">
<h1>Would you like to contine?.</h1>
<input type="button" id="yes" value="Yes" />
<input type="button" id="no" value="No" />
</div>
四、参数配置：
// override these in your code to change the default behavior and style
$.blockUI.defaults = {
// message displayed when blocking (use null for no message)
message: '<h1>Please wait...</h1>',
// styles for the message when blocking; if you wish to disable
// these and use an external stylesheet then do this in your code:
// $.blockUI.defaults.css = {};
css: {
padding: 0,
margin: 0,
width: '30%',
top: '40%',
left: '35%',
textAlign: 'center',
color: '#000',
border: '3px solid #aaa',
backgroundColor:'#fff',
cursor: 'wait'
},
// styles for the overlay
overlayCSS: {
backgroundColor: '#000',
opacity: 0.6
},
// styles applied when using $.growlUI
growlCSS: {
width: '350px',
top: '10px',
left: '',
right: '10px',
border: 'none',
padding: '5px',
opacity: 0.6,
cursor: null,
color: '#fff',
backgroundColor: '#000',
'-webkit-border-radius': '10px',
'-moz-border-radius': '10px'
},
// IE issues: 'about:blank' fails on HTTPS and javascript:false is s-l-o-w
// (hat tip to Jorge H. N. de Vasconcelos)
iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank',
// force usage of iframe in non-IE browsers (handy for blocking applets)
forceIframe: false,
// z-index for the blocking overlay
baseZ: 1000,
// set these to true to have the message automatically centered
centerX: true, // <-- only effects element blocking (page block controlled via css above)
centerY: true,
// allow body element to be stetched in ie6; this makes blocking look better
// on "short" pages. disable if you wish to prevent changes to the body height
allowBodyStretch: true,
// enable if you want key and mouse events to be disabled for content that is blocked
bindEvents: true,
// be default blockUI will supress tab navigation from leaving blocking content
// (if bindEvents is true)
constrainTabKey: true,
// fadeIn time in millis; set to 0 to disable fadeIn on block
fadeIn: 200,
// fadeOut time in millis; set to 0 to disable fadeOut on unblock
fadeOut: 400,
// time in millis to wait before auto-unblocking; set to 0 to disable auto-unblock
timeout: 0,
// disable if you don't want to show the overlay
showOverlay: true,
// if true, focus will be placed in the first available input field when
// page blocking
focusInput: true,
// suppresses the use of overlay styles on FF/Linux (due to performance issues with opacity)
applyPlatformOpacityRules: true,
// callback method invoked when unblocking has completed; the callback is
// passed the element that has been unblocked (which is the window object for page
// blocks) and the options that were passed to the unblock call:
// onUnblock(element, options)
onUnblock: null,
// don't ask; if you really must know: http://groups.google.com/group/jquery-en/browse_thread/thread/36640a8730503595/2f6a79a77a78e493#2f6a79a77a78e493
quirksmodeOffsetHack: 4
};
$.blockUI.defaults = {
// message displayed when blocking (use null for no message)
message: '<h1>Please wait...</h1>',
// styles for the message when blocking; if you wish to disable
// these and use an external stylesheet then do this in your code:
// $.blockUI.defaults.css = {};
css: {
padding: 0,
margin: 0,
width: '30%',
top: '40%',
left: '35%',
textAlign: 'center',
color: '#000',
border: '3px solid #aaa',
backgroundColor:'#fff',
cursor: 'wait'
},
// styles for the overlay
overlayCSS: {
backgroundColor: '#000',
opacity: 0.6
},
// styles applied when using $.growlUI
growlCSS: {
width: '350px',
top: '10px',
left: '',
right: '10px',
border: 'none',
padding: '5px',
opacity: 0.6,
cursor: null,
color: '#fff',
backgroundColor: '#000',
'-webkit-border-radius': '10px',
'-moz-border-radius': '10px'
},
// IE issues: 'about:blank' fails on HTTPS and javascript:false is s-l-o-w
// (hat tip to Jorge H. N. de Vasconcelos)
iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank',
// force usage of iframe in non-IE browsers (handy for blocking applets)
forceIframe: false,
// z-index for the blocking overlay
baseZ: 1000,
// set these to true to have the message automatically centered
centerX: true, // <-- only effects element blocking (page block controlled via css above)
centerY: true,
// allow body element to be stetched in ie6; this makes blocking look better
// on "short" pages. disable if you wish to prevent changes to the body height
allowBodyStretch: true,
// enable if you want key and mouse events to be disabled for content that is blocked
bindEvents: true,
// be default blockUI will supress tab navigation from leaving blocking content
// (if bindEvents is true)
constrainTabKey: true,
// fadeIn time in millis; set to 0 to disable fadeIn on block
fadeIn: 200,
// fadeOut time in millis; set to 0 to disable fadeOut on unblock
fadeOut: 400,
// time in millis to wait before auto-unblocking; set to 0 to disable auto-unblock
timeout: 0,
// disable if you don't want to show the overlay
showOverlay: true,
// if true, focus will be placed in the first available input field when
// page blocking
focusInput: true,
// suppresses the use of overlay styles on FF/Linux (due to performance issues with opacity)
applyPlatformOpacityRules: true,
// callback method invoked when unblocking has completed; the callback is
// passed the element that has been unblocked (which is the window object for page
// blocks) and the options that were passed to the unblock call:
// onUnblock(element, options)
onUnblock: null,
// don't ask; if you really must know: http://groups.google.com/group/jquery-en/browse_thread/thread/36640a8730503595/2f6a79a77a78e493#2f6a79a77a78e493
quirksmodeOffsetHack: 4
};
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