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index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Mini Help System with jQuery | Tutorialzine </title>
<!-- Our stylesheet -->
<link rel="stylesheet" href="assets/css/styles.css" />
</head>
<body>
<div id="widget">
<div id="header">
<input type="text" id="search" placeholder="Search in the text" />
</div>
<div id="content">
<!-- Your help text goes here -->
</div>
</div>
<!-- JavaScript Includes -->
<script src="http://code.jquery.com/jquery-1.8.3.min.js"></script>
<script src="assets/js/highlight.jquery.js"></script>
<script src="assets/js/jquery.scrollTo.min.js"></script>
<script src="assets/js/script.js"></script>
</body>
</html>assets/js/highlight.jquery.js
(function($) {
var termPattern;
$.fn.highlight = function(term, callback) {
return this.each(function() {
var elem = $(this);
if (!elem.data('highlight-original')) {
// Save the original element content
elem.data('highlight-original', elem.html());
} else {
// restore the original content
elem.highlightRestore();
}
termPattern = new RegExp('(' + term + ')', 'ig');
// Search the element's contents
walk(elem);
// Trigger the callback
callback && callback(elem.find('.match'));
});
};
$.fn.highlightRestore = function() {
return this.each(function() {
var elem = $(this);
elem.html(elem.data('highlight-original'));
});
};
function walk(elem) {
elem.contents().each(function() {
if (this.nodeType == 3) { // text node
if (termPattern.test(this.nodeValue)) {
// wrap the match in a span:
$(this).replaceWith(this.nodeValue.replace(termPattern, '<span class="match">$1</span>'));
}
} else {
// recursively call the function on this element
walk($(this));
}
});
}
})(jQuery);assets/js/script.js
$(function() {
var search = $('#search'),
content = $('#content'),
matches = $(), index = 0;
// Listen for the text input event
search.on('input', function(e) {
// Only search for strings 2 characters or more
if (search.val().length >= 2) {
// Use the highlight plugin
content.highlight(search.val(), function(found) {
matches = found;
if(matches.length && content.is(':not(:animated)')){
scroll(0);
}
});
} else {
content.highlightRestore();
}
});
search.on('keypress', function(e) {
if(e.keyCode == 13){ // The enter key
scrollNext();
}
});
function scroll(i){
index = i;
// Trigger the scrollTo plugin. Limit it
// to the y axis (vertical scroll only)
content.scrollTo(matches.eq(i), 800, { axis:'y' } );
}
function scrollNext(){
matches.length && scroll( (index + 1) % matches.length );
}
});
I see
no changes, wake up in the
morning and I ask myself Things would never be the same.
