www.gusucode.com > 监控设备公司网站源码程序 > 监控设备公司网站源码程序/update/20111209/base/js/blockui.js
/*
* jQuery blockUI plugin
*/
;(function($) {
if (/1\.(0|1|2)\.(0|1|2)/.test($.fn.jquery) || /^1.1/.test($.fn.jquery)) {
alert('blockUI requires jQuery v1.2.3 or later! You are using v' + $.fn.jquery);
return;
}
// global $ methods for blocking/unblocking the entire page
$.blockUI = function(opts) { install(window, opts); };
$.unblockUI = function(opts) { remove(window, opts); };
// plugin method for blocking element content
$.fn.block = function(opts) {
return this.each(function() {
if ($.css(this,'position') == 'static')
this.style.position = 'relative';
if ($.browser.msie)
this.style.zoom = 1; // force 'hasLayout'
install(this, opts);
});
};
// plugin method for unblocking element content
$.fn.unblock = function(opts) {
return this.each(function() {
remove(this, opts);
});
};
$.blockUI.version = 2.09; // 2nd generation blocking at no extra cost!
// override these in your code to change the default behavior and style
$.blockUI.defaults = {
// message displayed when blocking (use null for no message)
message: 'Please wait...',
// 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: '300px',
top: '30%',
left: '50%',
marginLeft: '-150',
textAlign: 'center',
color: '#000',
border: '1px solid #3b555c',
backgroundColor:'#cbddef',
padding: '10px',
cursor: 'wait'
},
// styles for the overlay
overlayCSS: {
backgroundColor:'#000',
opacity: '0.3'
},
// 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,
// be default blockUI will supress tab navigation from leaving blocking content;
constrainTabKey: true,
// fadeOut time in millis; set to 0 to disable fadeout on unblock
fadeOut: 400,
// 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
};
// private data and functions follow...
var ie6 = $.browser.msie && /MSIE 6.0/.test(navigator.userAgent);
var pageBlock = null;
var pageBlockEls = [];
function install(el, opts) {
var full = (el == window);
var msg = opts && opts.message !== undefined ? opts.message : undefined;
opts = $.extend({}, $.blockUI.defaults, opts || {});
opts.overlayCSS = $.extend({}, $.blockUI.defaults.overlayCSS, opts.overlayCSS || {});
var css = $.extend({}, $.blockUI.defaults.css, opts.css || {});
msg = msg === undefined ? opts.message : msg;
// remove the current block (if there is one)
if (full && pageBlock)
remove(window, {fadeOut:0});
// if an existing element is being used as the blocking content then we capture
// its current place in the DOM (and current display style) so we can restore
// it when we unblock
if (msg && typeof msg != 'string' && (msg.parentNode || msg.jquery)) {
var node = msg.jquery ? msg[0] : msg;
var data = {};
$(el).data('blockUI.history', data);
data.el = node;
data.parent = node.parentNode;
data.display = node.style.display;
data.position = node.style.position;
data.parent.removeChild(node);
}
var z = opts.baseZ;
// blockUI uses 3 layers for blocking, for simplicity they are all used on every platform;
// layer1 is the iframe layer which is used to supress bleed through of underlying content
// layer2 is the overlay layer which has opacity and a wait cursor
// layer3 is the message content that is displayed while blocking
var lyr1 = ($.browser.msie) ? $('<iframe class="blockUI" style="z-index:'+ z++ +';border:none;margin:0;padding:0;position:absolute;width:100%;height:100%;top:0;left:0" src="javascript:false;"></iframe>')
: $('<div class="blockUI" style="display:none"></div>');
var lyr2 = $('<div class="blockUI blockOverlay" style="z-index:'+ z++ +';cursor:wait;border:none;margin:0;padding:0;width:100%;height:100%;top:0;left:0"></div>');
var lyr3 = full ? $('<div class="blockUI blockMsg blockPage" style="z-index:'+z+';position:fixed"></div>')
: $('<div class="blockUI blockMsg blockElement" style="z-index:'+z+';display:none;position:absolute"></div>');
// if we have a message, style it
if (msg){
lyr3.css(css);
lyr3.css('left', $.browser.msie ? '50%' : (document.body.offsetWidth-parseInt(css.width))/2 + "px");
lyr3.css('marginLeft', $.browser.msie ? -parseInt(css.width)/2 + "px" : '');
}
// style the overlay
if (!opts.applyPlatformOpacityRules || !($.browser.mozilla && /Linux/.test(navigator.platform)))
lyr2.css(opts.overlayCSS);
lyr2.css('position', full ? 'fixed' : 'absolute');
// make iframe layer transparent in IE
if ($.browser.msie)
lyr1.css('opacity','0.0');
$([lyr1[0],lyr2[0],lyr3[0]]).appendTo(full ? 'body' : el);
// ie7 must use absolute positioning in quirks mode and to account for activex issues (when scrolling)
var expr = $.browser.msie && (!$.boxModel || $('object,embed', full ? null : el).length > 0);
if (ie6 || expr) {
// give body 100% height
if (full && opts.allowBodyStretch && $.boxModel)
$('html,body').css('height','100%');
// fix ie6 issue when blocked element has a border width
if ((ie6 || !$.boxModel) && !full) {
var t = sz(el,'borderTopWidth'), l = sz(el,'borderLeftWidth');
var fixT = t ? '(0 - '+t+')' : 0;
var fixL = l ? '(0 - '+l+')' : 0;
}
// simulate fixed position
$.each([lyr1,lyr2,lyr3], function(i,o) {
var s = o[0].style;
s.position = 'absolute';
if (i < 2) {
full ? s.setExpression('height','document.body.scrollHeight > document.body.offsetHeight ? document.body.scrollHeight : document.body.offsetHeight + "px"')
: s.setExpression('height','this.parentNode.offsetHeight + "px"');
full ? s.setExpression('width','jQuery.boxModel && document.documentElement.clientWidth || document.body.clientWidth + "px"')
: s.setExpression('width','this.parentNode.offsetWidth + "px"');
if (fixL) s.setExpression('left', fixL);
if (fixT) s.setExpression('top', fixT);
}
else if (opts.centerY) {
if (full) s.setExpression('top','(document.documentElement.clientHeight || document.body.clientHeight) / 2 - (this.offsetHeight / 2) + (blah = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + "px"');
s.marginTop = 0;
}
});
}
// show the message
lyr3.append(msg).show();
if (msg && (msg.jquery || msg.nodeType))
$(msg).show();
// bind key and mouse events
bind(1, el, opts);
if (full) {
pageBlock = lyr3[0];
pageBlockEls = $(':input:enabled:visible',pageBlock);
if (opts.focusInput)
setTimeout(focus, 20);
}
else
center(lyr3[0], opts.centerX, opts.centerY);
};
// remove the block
function remove(el, opts) {
var full = el == window;
var data = $(el).data('blockUI.history');
opts = $.extend({}, $.blockUI.defaults, opts || {});
bind(0, el, opts); // unbind events
var els = full ? $('body').children().filter('.blockUI') : $('.blockUI', el);
if (full)
pageBlock = pageBlockEls = null;
if (opts.fadeOut) {
els.fadeOut(opts.fadeOut);
setTimeout(function() { reset(els,data,opts,el); }, opts.fadeOut);
}
else
reset(els, data, opts, el);
};
// move blocking element back into the DOM where it started
function reset(els,data,opts,el) {
els.each(function(i,o) {
// remove via DOM calls so we don't lose event handlers
if (this.parentNode)
this.parentNode.removeChild(this);
});
if (data && data.el) {
data.el.style.display = data.display;
data.el.style.position = data.position;
data.parent.appendChild(data.el);
$(data.el).removeData('blockUI.history');
}
if (typeof opts.onUnblock == 'function')
opts.onUnblock(el,opts);
};
// bind/unbind the handler
function bind(b, el, opts) {
var full = el == window, $el = $(el);
// don't bother unbinding if there is nothing to unbind
if (!b && (full && !pageBlock || !full && !$el.data('blockUI.isBlocked')))
return;
if (!full)
$el.data('blockUI.isBlocked', b);
// bind anchors and inputs for mouse and key events
var events = 'mousedown mouseup keydown keypress click';
b ? $(document).bind(events, opts, handler) : $(document).unbind(events, handler);
// former impl...
// var $e = $('a,:input');
// b ? $e.bind(events, opts, handler) : $e.unbind(events, handler);
};
// event handler to suppress keyboard/mouse events when blocking
function handler(e) {
// allow tab navigation (conditionally)
if (e.keyCode && e.keyCode == 9) {
if (pageBlock && e.data.constrainTabKey) {
var els = pageBlockEls;
var fwd = !e.shiftKey && e.target == els[els.length-1];
var back = e.shiftKey && e.target == els[0];
if (fwd || back) {
setTimeout(function(){focus(back)},10);
return false;
}
}
}
// allow events within the message content
if ($(e.target).parents('div.blockMsg').length > 0)
return true;
// allow events for content that is not being blocked
return $(e.target).parents().children().filter('div.blockUI').length == 0;
};
function focus(back) {
if (!pageBlockEls)
return;
var e = pageBlockEls[back===true ? pageBlockEls.length-1 : 0];
if (e)
e.focus();
};
function center(el, x, y) {
var p = el.parentNode, s = el.style;
var l = ((p.offsetWidth - el.offsetWidth)/2) - sz(p,'borderLeftWidth');
var t = ((p.offsetHeight - el.offsetHeight)/2) - sz(p,'borderTopWidth');
if (x) s.left = l > 0 ? (l+'px') : '0';
if (y) s.top = t > 0 ? (t+'px') : '0';
};
function sz(el, p) {
return parseInt($.css(el,p))||0;
};
})(jQuery);
//仿alert
(function($){
$.fn.alertwindow = function(ntc,url){
$('div#alert').remove();
$('html').append("<div id='alert'></div>");
$('div#alert').append("<div class='topBar'>提示信息<div class='pwClose'></div></div><div class='border'><div class='ntc'>"+ntc+"</div><div class='buttonzone'><input type='button' class='button' id='ok' value='确定' /></div></div>");
$.blockUI({message: $('div#alert'),css:{width:'300px'}});
$('#ok').click(function() {
$.unblockUI();
$("div#alert").fadeOut("slow");
if(url!=""){
setTimeout("self.location='"+url+"'",300);
}
});
$('.pwClose').click(function() {
$.unblockUI();
$("div#alert").fadeOut("slow");
if(url!=""){
setTimeout("self.location='"+url+"'",300);
}
});
};
})(jQuery);