/* */ /* * 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('images/blank.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/blank.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);