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Diffstat (limited to 'external/bgiframe/jquery.bgiframe.js')
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diff --git a/external/bgiframe/jquery.bgiframe.js b/external/bgiframe/jquery.bgiframe.js new file mode 100644 index 000000000..3a01f6eba --- /dev/null +++ b/external/bgiframe/jquery.bgiframe.js @@ -0,0 +1,100 @@ +/* Copyright (c) 2006 Brandon Aaron (http://brandonaaron.net) + * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) + * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses. + * + * $LastChangedDate: 2007-07-21 18:44:59 -0500 (Sat, 21 Jul 2007) $ + * $Rev: 2446 $ + * + * Version 2.1.1 + */ + +(function($){ + +/** + * The bgiframe is chainable and applies the iframe hack to get + * around zIndex issues in IE6. It will only apply itself in IE6 + * and adds a class to the iframe called 'bgiframe'. The iframe + * is appeneded as the first child of the matched element(s) + * with a tabIndex and zIndex of -1. + * + * By default the plugin will take borders, sized with pixel units, + * into account. If a different unit is used for the border's width, + * then you will need to use the top and left settings as explained below. + * + * NOTICE: This plugin has been reported to cause perfromance problems + * when used on elements that change properties (like width, height and + * opacity) a lot in IE6. Most of these problems have been caused by + * the expressions used to calculate the elements width, height and + * borders. Some have reported it is due to the opacity filter. All + * these settings can be changed if needed as explained below. + * + * @example $('div').bgiframe(); + * @before <div><p>Paragraph</p></div> + * @result <div><iframe class="bgiframe".../><p>Paragraph</p></div> + * + * @param Map settings Optional settings to configure the iframe. + * @option String|Number top The iframe must be offset to the top + * by the width of the top border. This should be a negative + * number representing the border-top-width. If a number is + * is used here, pixels will be assumed. Otherwise, be sure + * to specify a unit. An expression could also be used. + * By default the value is "auto" which will use an expression + * to get the border-top-width if it is in pixels. + * @option String|Number left The iframe must be offset to the left + * by the width of the left border. This should be a negative + * number representing the border-left-width. If a number is + * is used here, pixels will be assumed. Otherwise, be sure + * to specify a unit. An expression could also be used. + * By default the value is "auto" which will use an expression + * to get the border-left-width if it is in pixels. + * @option String|Number width This is the width of the iframe. If + * a number is used here, pixels will be assume. Otherwise, be sure + * to specify a unit. An experssion could also be used. + * By default the value is "auto" which will use an experssion + * to get the offsetWidth. + * @option String|Number height This is the height of the iframe. If + * a number is used here, pixels will be assume. Otherwise, be sure + * to specify a unit. An experssion could also be used. + * By default the value is "auto" which will use an experssion + * to get the offsetHeight. + * @option Boolean opacity This is a boolean representing whether or not + * to use opacity. If set to true, the opacity of 0 is applied. If + * set to false, the opacity filter is not applied. Default: true. + * @option String src This setting is provided so that one could change + * the src of the iframe to whatever they need. + * Default: "javascript:false;" + * + * @name bgiframe + * @type jQuery + * @cat Plugins/bgiframe + * @author Brandon Aaron (brandon.aaron@gmail.com || http://brandonaaron.net) + */ +$.fn.bgIframe = $.fn.bgiframe = function(s) { + // This is only for IE6 + if ( $.browser.msie && /6.0/.test(navigator.userAgent) ) { + s = $.extend({ + top : 'auto', // auto == .currentStyle.borderTopWidth + left : 'auto', // auto == .currentStyle.borderLeftWidth + width : 'auto', // auto == offsetWidth + height : 'auto', // auto == offsetHeight + opacity : true, + src : 'javascript:false;' + }, s || {}); + var prop = function(n){return n&&n.constructor==Number?n+'px':n;}, + html = '<iframe class="bgiframe"frameborder="0"tabindex="-1"src="'+s.src+'"'+ + 'style="display:block;position:absolute;z-index:-1;'+ + (s.opacity !== false?'filter:Alpha(Opacity=\'0\');':'')+ + 'top:'+(s.top=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderTopWidth)||0)*-1)+\'px\')':prop(s.top))+';'+ + 'left:'+(s.left=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderLeftWidth)||0)*-1)+\'px\')':prop(s.left))+';'+ + 'width:'+(s.width=='auto'?'expression(this.parentNode.offsetWidth+\'px\')':prop(s.width))+';'+ + 'height:'+(s.height=='auto'?'expression(this.parentNode.offsetHeight+\'px\')':prop(s.height))+';'+ + '"/>'; + return this.each(function() { + if ( $('> iframe.bgiframe', this).length == 0 ) + this.insertBefore( document.createElement(html), this.firstChild ); + }); + } + return this; +}; + +})(jQuery);
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