mirror of
https://github.com/SickGear/SickGear.git
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91 lines
3.2 KiB
JavaScript
91 lines
3.2 KiB
JavaScript
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/*
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* Supersubs v0.2b - jQuery plugin
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* Copyright (c) 2008 Joel Birch
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*
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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*
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*
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* This plugin automatically adjusts submenu widths of suckerfish-style menus to that of
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* their longest list item children. If you use this, please expect bugs and report them
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* to the jQuery Google Group with the word 'Superfish' in the subject line.
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*
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*/
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;(function($){ // $ will refer to jQuery within this closure
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$.fn.supersubs = function(options){
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var opts = $.extend({}, $.fn.supersubs.defaults, options);
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// return original object to support chaining
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return this.each(function() {
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// cache selections
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var $$ = $(this);
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// support metadata
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var o = $.meta ? $.extend({}, opts, $$.data()) : opts;
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// get the font size of menu.
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// .css('fontSize') returns various results cross-browser, so measure an em dash instead
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var fontsize = $('<li id="menu-fontsize">—</li>').css({
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'padding' : 0,
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'position' : 'absolute',
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'top' : '-999em',
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'width' : 'auto'
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}).appendTo($$).width(); //clientWidth is faster, but was incorrect here
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// remove em dash
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$('#menu-fontsize').remove();
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// cache all ul elements
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$ULs = $$.find('ul');
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// loop through each ul in menu
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$ULs.each(function(i) {
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// cache this ul
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var $ul = $ULs.eq(i);
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// get all (li) children of this ul
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var $LIs = $ul.children();
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// get all anchor grand-children
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var $As = $LIs.children('a');
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// force content to one line and save current float property
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var liFloat = $LIs.css('white-space','nowrap').css('float');
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// remove width restrictions and floats so elements remain vertically stacked
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var emWidth = $ul.add($LIs).add($As).css({
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'float' : 'none',
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'width' : 'auto'
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})
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// this ul will now be shrink-wrapped to longest li due to position:absolute
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// so save its width as ems. Clientwidth is 2 times faster than .width() - thanks Dan Switzer
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.end().end()[0].clientWidth / fontsize;
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// add more width to ensure lines don't turn over at certain sizes in various browsers
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emWidth += o.extraWidth;
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// restrict to at least minWidth and at most maxWidth
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if (emWidth > o.maxWidth) { emWidth = o.maxWidth; }
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else if (emWidth < o.minWidth) { emWidth = o.minWidth; }
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emWidth += 'em';
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// set ul to width in ems
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$ul.css('width',emWidth);
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// restore li floats to avoid IE bugs
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// set li width to full width of this ul
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// revert white-space to normal
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$LIs.css({
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'float' : liFloat,
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'width' : '100%',
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'white-space' : 'normal'
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})
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// update offset position of descendant ul to reflect new width of parent
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.each(function(){
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var $childUl = $('>ul',this);
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var offsetDirection = $childUl.css('left')!==undefined ? 'left' : 'right';
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$childUl.css(offsetDirection,emWidth);
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});
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});
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});
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};
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// expose defaults
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$.fn.supersubs.defaults = {
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minWidth : 9, // requires em unit.
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maxWidth : 25, // requires em unit.
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extraWidth : 0 // extra width can ensure lines don't sometimes turn over due to slight browser differences in how they round-off values
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};
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})(jQuery); // plugin code ends
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