https://www.highwaybus.com/gp/js/jquery.heightLine.js

1/*!--------------------------------------------------------------------------*
2 *  
3 *  jquery.heightLine.js
4 *  
5 *  MIT-style license. 
6 *  
7 *  2013 Kazuma Nishihata 
8 *  http://www.to-r.net
9 *  
10 *--------------------------------------------------------------------------*/
11;(function($){
12	$.fn.heightLine = function(){
13		var target = this,fontSizeChangeTimer,windowResizeId= Math.random();
14		var heightLineObj = {
15			op : {
16				"maxWidth" : 10000,
17				"minWidth" : 0,
18				"fontSizeCheck" : false
19			},
20			setOption : function(op){
21				this.op = $.extend(this.op,op);
22			},
23			destroy : function(){
24				target.css("height","");
25			},
26			create : function(op){
27				var self = this,
28					maxHeight = 0,
29					windowWidth = $(window).width();
30				self.setOption(op);
31				if( windowWidth<=self.op.maxWidth && windowWidth>=self.op.minWidth ){
32					target.each(function(){
33						if($(this).outerHeight()>maxHeight){
34							maxHeight = $(this).outerHeight();
35						}
36					}).each(function(){
37						var height = maxHeight
38								   - parseInt($(this).css("padding-top"))
39								   - parseInt($(this).css("padding-bottom"));
40						$(this).height(height);
41					});
42				}
43			},
44			refresh : function(op){
45				this.destroy();
46				this.create(op);
47			},
48			removeEvent :function(){
49				$(window).off("resize."+windowResizeId);
50				target.off("destroy refresh");
51				clearInterval(fontSizeChangeTimer);
52			}
53		}
54		if(typeof arguments[0] === "string" && arguments[0] === "destroy"){
55			target.trigger("destroy");
56		}else if(typeof arguments[0] === "string" && arguments[0] === "refresh"){
57			target.trigger("refresh");
58		}else{
59			heightLineObj["create"](arguments[0]);
60			
61			$(window).on("resize."+windowResizeId,function(){
62				heightLineObj["refresh"]();
63			});
64
65			target.on("destroy",function(){
66				heightLineObj["removeEvent"]();
67				heightLineObj["destroy"]();
68			}).on("refresh",function(){
69				heightLineObj["refresh"]();
70			});
71
72			if(heightLineObj.op.fontSizeCheck){
73				
74				if($("#fontSizeChange").length<=0){
75					var fontSizeChange = $("<span id='fontSizeChange'></span>").css({
76						width:0,
77						height:"1em",
78						position:"absolute",
79						left:0,
80						top:0
81					}).appendTo("body");
82				}
83				var defaultFontSize = $("#fontSizeChange").height();
84				fontSizeChangeTimer = setInterval(function(){
85					if(defaultFontSize != $("#fontSizeChange").height()){
86						heightLineObj["refresh"]();
87					}
88				},100);
89			}
90		}
91		return target;
92	}
93})(jQuery);