При использование jQuery ifixpng на элемент со следующим CSS правилом, background исчезает совсем. Чем может быть вызвана такая проблема?
| Код |
a.button_type1 span{
background: url(../images/button_type1_background_right.png) no-repeat right;
display: block;
padding: 4px 15px 4px 0;
color:#FFF;
font-weight:bold;
}
|
При этом плагин успешно срабатывает на элементе с тегом A (оборачивает элемент span), которые имеет следующие правило:
| Код |
a.button_type1 {
background: url(../images/button_type1_background_left.png) no-repeat left;
display: block;
float: left;
line-height: 19px;
height: 27px;
text-decoration: none;
padding-left: 15px;
}
|
Код плагина:
| Код |
/*
* jQuery ifixpng plugin
* (previously known as pngfix)
* Version 2.1 (23/04/2008)
* @requires jQuery v1.1.3 or above
*
* Examples at: http://jquery.khurshid.com
* Copyright (c) 2007 Kush M.
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*/
/**
*
* @example
*
* optional if location of pixel.gif if different to default which is images/pixel.gif
* $.ifixpng('media/pixel.gif');
*
* $('img[@src$=.png], #panel').ifixpng();
*
* @apply hack to all png images and #panel which icluded png img in its css
*
* @name ifixpng
* @type jQuery
* @cat Plugins/Image
* @return jQuery
* @author jQuery Community
*/
(function($) {
/**
* helper variables and function
*/
$.ifixpng = function(customPixel) {
$.ifixpng.pixel = customPixel;
};
$.ifixpng.getPixel = function() {
return $.ifixpng.pixel || 'images/pixel.gif';
};
var hack = {
ltie7 : $.browser.msie && $.browser.version < 7,
filter : function(src) {
return "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true,sizingMethod=crop,src='"+src+"')";
}
};
/**
* Applies ie png hack to selected dom elements
*
* $('img[@src$=.png]').ifixpng();
* @desc apply hack to all images with png extensions
*
* $('#panel, img[@src$=.png]').ifixpng();
* @desc apply hack to element #panel and all images with png extensions
*
* @name ifixpng
*/
$.fn.ifixpng = hack.ltie7 ? function() {
return this.each(function() {
var $$ = $(this);
// in case rewriting urls
var base = $('base').attr('href');
if (base) {
// remove anything after the last '/'
base = base.replace(/\/[^\/]+$/,'/');
}
if ($$.is('img') || $$.is('input')) { // hack image tags present in dom
if ($$.attr('src')) {
if ($$.attr('src').match(/.*\.png([?].*)?$/i)) { // make sure it is png image
// use source tag value if set
var source = (base && $$.attr('src').search(/^(\/|http:)/i)) ? base + $$.attr('src') : $$.attr('src');
// apply filter
$$.css({filter:hack.filter(source), width:$$.width(), height:$$.height()})
.attr({src:$.ifixpng.getPixel()})
.positionFix();
}
}
} else { // hack png css properties present inside css
var image = $$.css('backgroundImage');
if (image.match(/^url\(["']?(.*\.png([?].*)?)["']?\)$/i)) {
image = RegExp.$1;
image = (base && image.substring(0,1)!='/') ? base + image : image;
$$.css({backgroundImage:'none', filter:hack.filter(image)})
.children().children().positionFix();
}
}
});
} : function() { return this; };
/**
* Removes any png hack that may have been applied previously
*
* $('img[@src$=.png]').iunfixpng();
* @desc revert hack on all images with png extensions
*
* $('#panel, img[@src$=.png]').iunfixpng();
* @desc revert hack on element #panel and all images with png extensions
*
* @name iunfixpng
*/
$.fn.iunfixpng = hack.ltie7 ? function() {
return this.each(function() {
var $$ = $(this);
var src = $$.css('filter');
if (src.match(/src=["']?(.*\.png([?].*)?)["']?/i)) { // get img source from filter
src = RegExp.$1;
if ($$.is('img') || $$.is('input')) {
$$.attr({src:src}).css({filter:''});
} else {
$$.css({filter:'', background:'url('+src+')'});
}
}
});
} : function() { return this; };
/**
* positions selected item relatively
*/
$.fn.positionFix = function() {
return this.each(function() {
var $$ = $(this);
var position = $$.css('position');
if (position != 'absolute' && position != 'relative') {
$$.css({position:'relative'});
}
});
};
})(jQuery);
|
|