Created
May 19, 2010 10:51
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<!DOCTYPE HTML> | |
<html lang="ja"> | |
<head> | |
<meta charset="UTF-8"> | |
<title>rollover javascript sample</title> | |
</head> | |
<body> | |
<p class="description">画像以外(テキストとか)にオンマウスしたときにも画像が切り替わるよ。</p> | |
<p><a class="hoge" href="http://example.com/"><img src="img/test.gif" alt="test">hoge</a></p> | |
<p><a class="hoge" href="http://example.com/"><img src="img/test.png" alt="test">hoge</a></p> | |
<p><a class="hoge" href="http://example.com/"><img src="img/test.gif" alt="test"><img src="img/test.png" alt="test">hoge</a></p> | |
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script> | |
<script type="text/javascript" src="rollover.js"></script> | |
</body> | |
</html> |
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(function() { | |
var target = 'a.hoge'; | |
var postfix = '_o'; | |
$(target) | |
.find('img').each(function() { | |
var src = this.src; | |
var src_o = src.replace(/(\.[^.]+$)/, postfix + '$1'); | |
(new Image).src = src_o; | |
$.data(this, 'src', src); | |
$.data(this, 'src_o', src_o); | |
}) | |
.end() | |
.hover( | |
function() { | |
$(this).find('img').each(function() { | |
this.src = $.data(this, 'src_o'); | |
}); | |
}, | |
function() { | |
$(this).find('img').each(function() { | |
this.src = $.data(this, 'src'); | |
}); | |
} | |
); | |
})(); |
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/* 実装例をもう一個。挙動は同じ。こっちのほうが早いかな? */ | |
(function() { | |
var target = 'a.hoge'; | |
var postfix = '_o'; | |
var over_regex = new RegExp('(\.[^.]+$)'); | |
var out_regex = new RegExp(postfix + '(\.[^.]+$)'); | |
$(target) | |
.find('img').each(function() { | |
(new Image).src = this.src.replace(over_regex, postfix + '$1'); | |
}) | |
.end() | |
.hover( | |
function() { | |
$(this).find('img').each(function() { | |
this.src = this.src.replace(over_regex, postfix + '$1'); | |
}); | |
}, | |
function() { | |
$(this).find('img').each(function() { | |
this.src = this.src.replace(out_regex, '$1'); | |
}); | |
} | |
); | |
})(); |
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