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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="UTF-8"> | |
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> | |
<title>title</title> | |
<style type="text/css"> | |
body, html { | |
width: 100%; | |
height: 100%; | |
} | |
body { | |
font-size: 20px; | |
line-height: 30px; | |
background-color: rgba(0, 0, 255, 0.4); | |
} | |
body * { | |
line-height: inherit; | |
} | |
span { | |
background-color: rgba(255, 255, 255, 0.6); | |
white-space: nowrap; | |
} | |
span.wrapped { | |
outline: 2px solid rgba(255, 0, 0, 0.6); | |
background-color: rgba(255, 255, 255, 0.1); | |
} | |
span.end-of-line { | |
outline: 2px solid rgba(0, 255, 0, 0.6); | |
background-color: rgba(255, 255, 255, 0.1); | |
} | |
</style> | |
</head> | |
<body> | |
<div class='wrap-watch'> | |
Here is a sentence with a bunch of words in it. Trying to <span>determine where line-wraps will happen.</span> | |
<span>Hannibal Buress</span> is a stand-up comedian, <span>actor and television writer currently</span> living in <span>New York City</span>. His latest special <span>"Live from Chicago"</span> airs March 29th on Comedy Central. | |
</div> | |
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js" type="text/javascript"></script> | |
<script src="/wrapped.js" type="text/javascript"></script> | |
</body> | |
</html> |
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// Goal: selector for matching elements that are line-wrapped [line-broken, etc] | |
// Ideas: | |
// '... span:nth-line(-)' match a span that is on the nth line of text in its | |
// container | |
// | |
// '.. span:wrapped' match a span that is line-wrapped (not on 1st line) | |
// '.. span:orphan' match span that is last element on its line | |
var wrapped = {}; | |
(function(self, $) { | |
var $body = $('body'), | |
$spans = $('span'), | |
displayType = /^inline/; | |
function offsetTop(node, rect) { | |
return node.offsetTop || | |
(isTextNode(node) && (rect || getBoundingClientRect(node)).top); | |
} | |
function isTextNode(node) { | |
return node.nodeType == 3; | |
} | |
function isInline(node) { | |
return displayType.test($(node).css('display')); | |
} | |
function isEmptyNode(node, rect) { | |
var rect = rect || getBoundingClientRect(node); | |
return rect.width + rect.height === 0; | |
} | |
function getBoundingClientRect(textNode) { | |
if (document.createRange) { | |
var range = document.createRange(); | |
range.selectNodeContents(textNode); | |
if (range.getBoundingClientRect) { | |
return range.getBoundingClientRect(); | |
} | |
} | |
} | |
function textOrInline(node) { | |
return isTextNode(node) || isInline(node); | |
} | |
$.expr[':'].wrapped = function(obj, index, meta, stack) { | |
var prev = obj.previousSibling; | |
if (!textOrInline(prev) || isEmptyNode(prev)) | |
return false; | |
return textOrInline(obj) && offsetTop(prev) < offsetTop(obj); | |
}; | |
// end-of-line(node) = inline(node) && inline(node.next) && .. | |
$.expr[':']['end-of-line'] = function(obj, index, meta, stack) { | |
var next = obj.nextSibling; | |
if (isEmptyNode(next)) | |
return false; | |
return textOrInline(obj) && offsetTop(next) > offsetTop(obj); | |
}; | |
$body.click(function() { | |
$spans.each(function() { | |
var $self = $(this); | |
$self.toggleClass('wrapped', $self.is(':wrapped')); | |
$self.toggleClass('end-of-line', $self.is(':end-of-line')); | |
}); | |
}); | |
console.log('wrapped.js'); | |
})(wrapped, $); |
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