hide_blockquote.js
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hide_blockquote.js
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	if (window.rcmail)
	rcmail.addEventListener('init', function() { hide_blockquote(); });

	function hide_blockquote()
	{
	var limit = rcmail.env.blockquote_limit;

	if (limit <= 0)
	return;

	$('pre > blockquote', $('#messagebody')).each(function() {
	var div, link, q = $(this),
	text = $.trim(q.text()),
	res = text.split(/\n/);

	if (res.length <= limit) {
	// there can be also a block with very long wrapped line
	// assume line height = 15px
	if (q.height() <= limit * 15)
	return;
	}

	div = $('<blockquote class="blockquote-header">')
	.css({'white-space': 'nowrap', overflow: 'hidden', position: 'relative'})
	.text(res[0]);

	link = $('<span class="blockquote-link"></span>')
	.css({position: 'absolute', 'z-Index': 2})
	.text(rcmail.gettext('hide_blockquote.show'))
	.data('parent', div)
	.click(function() {
	var t = $(this), parent = t.data('parent'), visible = parent.is(':visible');

	t.text(rcmail.gettext(visible ? 'hide' : 'show', 'hide_blockquote'))
	.detach().appendTo(visible ? q : parent);

	parent[visible ? 'hide' : 'show']();
	q[visible ? 'show' : 'hide']();
	});

	link.appendTo(div);

	// Modify blockquote
	q.hide().css({position: 'relative'}).before(div);
	});
	}