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Smooth movement from the table of contents in the Hatena blog article to the heading using jQuery.
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$(document).ready(function(){ | |
// 見出しタグにclass追加 | |
$(".entry-content h1").addClass("content-h"); | |
$(".entry-content h2").addClass("content-h"); | |
$(".entry-content h3").addClass("content-h"); | |
$(".entry-content h4").addClass("content-h"); | |
$(".entry-content h5").addClass("content-h"); | |
// 「目次」表示 | |
$(".table-of-contents").before('<div class="contents-table"></div>'); | |
$("<h3>目次</h3>").appendTo(".contents-table"); | |
// 目次リストをdiv内に移動・リンク削除・class追加 | |
$(".table-of-contents").appendTo(".contents-table"); | |
$(".table-of-contents li a").removeAttr("href"); | |
$(".table-of-contents li").addClass("ct-list-item"); | |
// 各見出しの後ろに目次に戻るアイコン追加 | |
var backToCt = "<div class='back-to-ct'><i class='blogicon-chevron-up'></i></div>"; | |
var $cth = $(".content-h"); | |
$(".content-h").append(backToCt); | |
// 目次クリック時 | |
$(".ct-list-item a").click(function(){ | |
var idx = $(".ct-list-item a").index(this); | |
var rect = $cth[idx].getBoundingClientRect(); | |
var position = rect.top + window.pageYOffset - 45; | |
scrollToPosition(position); | |
}); | |
// 目次へ戻る | |
$(".back-to-ct").click(function(){ | |
var $cth = $(".table-of-contents"); | |
var position = 45; | |
if ($cth.length > 0) { | |
var rect = $cth[0].getBoundingClientRect(); | |
position = rect.top + window.pageYOffset - 45; | |
} | |
scrollToPosition(position); | |
}); | |
function scrollToPosition(position) { | |
$("html,body").animate({ | |
scrollTop : position | |
}, { | |
queue : false | |
}); | |
} | |
}); |
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