ripple-core
Version:
Ripple is an interactive audience response system that allows presenters to survey audience members in real time communication through their mobile devices.
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JavaScript
/*
DynaCloud v5
A dynamic JavaScript tag/keyword cloud with jQuery.
<http://johannburkard.de/blog/programming/javascript/dynacloud-a-dynamic-javascript-tag-keyword-cloud-with-jquery.html>
MIT license.
Johann Burkard
<http://johannburkard.de>
<mailto:jb@eaio.com>
*/
/*
Modified by William Myers
- adjust word length to be 3 letters or longer
- added maxFontSize as a property
* Default: 5
* This will limit the word size to 5em
*/
jQuery.fn.highlight = function(pat) {
function innerHighlight(node, pat) {
var skip = 0;
if (node.nodeType == 3) {
var pos = node.data.toUpperCase().indexOf(pat);
if (pos >= 0) {
var spannode = document.createElement('span');
spannode.className = 'highlight';
var middlebit = node.splitText(pos);
var endbit = middlebit.splitText(pat.length);
var middleclone = middlebit.cloneNode(true);
spannode.appendChild(middleclone);
middlebit.parentNode.replaceChild(spannode, middlebit);
skip = 1;
}
}
else if (node.nodeType == 1 && node.childNodes && !/(script|style)/i.test(node.tagName)) {
for (var i = 0; i < node.childNodes.length; ++i) {
i += innerHighlight(node.childNodes[i], pat);
}
}
return skip;
}
return this.each(function() {
innerHighlight(this, pat.toUpperCase());
});
};
jQuery.fn.removeHighlight = function() {
return this.find("span.highlight").each(function() {
this.parentNode.firstChild.nodeName;
with (this.parentNode) {
replaceChild(this.firstChild, this);
normalize();
}
}).end();
};
jQuery.dynaCloud = {
max: 20,
sort: true,
auto: true,
single: true,
wordStats: true,
scale: 4,
maxFontSize: 5,
// Adapted from <http://www.perseus.tufts.edu/Texts/engstop.html>
stopwords: [ "a", "about", "above", "accordingly", "after",
"again", "against", "ah", "all", "also", "although", "always", "am", "among", "amongst", "an",
"and", "any", "anymore", "anyone", "are", "as", "at", "away", "be", "been",
"begin", "beginning", "beginnings", "begins", "begone", "begun", "being",
"below", "between", "but", "by", "ca", "can", "cannot", "come", "could",
"did", "do", "doing", "during", "each", "either", "else", "end", "et",
"etc", "even", "ever", "far", "ff", "following", "for", "from", "further", "furthermore",
"get", "go", "goes", "going", "got", "had", "has", "have", "he", "her",
"hers", "herself", "him", "himself", "his", "how", "i", "if", "in", "into",
"is", "it", "its", "itself", "last", "lastly", "less", "many", "may", "me",
"might", "more", "must", "my", "myself", "near", "nearly", "never", "new",
"next", "no", "not", "now", "o", "of", "off", "often", "oh", "on", "only",
"or", "other", "otherwise", "our", "ourselves", "out", "over", "perhaps",
"put", "puts", "quite", "s", "said", "saw", "say", "see", "seen", "shall",
"she", "should", "since", "so", "some", "such", "t", "than", "that", "the",
"their", "them", "themselves", "then", "there", "therefore", "these", "they",
"this", "those", "though", "throughout", "thus", "to", "too",
"toward", "unless", "until", "up", "upon", "us", "ve", "very", "was", "we",
"were", "what", "whatever", "when", "where", "which", "while", "who",
"whom", "whomever", "whose", "why", "with", "within", "without", "would",
"yes", "your", "yours", "yourself", "yourselves" ]
};
jQuery(function() {
jQuery.dynaCloud.stopwords = new RegExp("\\s((" + jQuery.dynaCloud.stopwords.join("|") + ")\\s)+", "gi");
if (jQuery.dynaCloud.auto) {
jQuery('.dynacloud').dynaCloud();
}
});
jQuery.fn.dynaCloud = function(outElement) {
var cloud = {};
return this.each(function() {
var cl = [];
var max = 0;
if (jQuery.wordStats && jQuery.dynaCloud.wordStats) {
jQuery.wordStats.computeTopWords(jQuery.dynaCloud.max, this);
for (var i = 0, j = jQuery.wordStats.topWords.length; i < j && i <= jQuery.dynaCloud.max; ++i) {
var t = jQuery.wordStats.topWords[i].substring(1);
if (typeof cloud[t] == 'undefined') {
cloud[t] = { count: jQuery.wordStats.topWeights[i], el: t };
}
else {
cloud[t].count += jQuery.wordStats.topWeights[i];
}
max = Math.max(cloud[t].count, max);
}
jQuery.wordStats.clear();
}
else {
var elems = jQuery(this).text().replace(/[^A-Z\xC4\xD6\xDCa-z\xE4\xF6\xFC\xDF0-9_]/g, ' ').replace(jQuery.dynaCloud.stopwords, ' ').split(' ');
// Modified to allow lowercase words to be evaluated - William Myers
//var word = /^[a-z\xE4\xF6\xFC]*[A-Z\xC4\xD6\xDC]([A-Z\xC4\xD6\xDC\xDF]+|[a-z\xE4\xF6\xFC\xDF]{2,})/;
var word = /^[a-z\xE4\xF6\xFC]{2,}/i;
console.log("elems", elems);
console.log("stop Regex", jQuery.dynaCloud.stopwords);
jQuery.each(elems, function(i, n) {
if (word.test(n)) {
var t = n.toLowerCase();
if (typeof cloud[t] == 'undefined') {
cloud[t] = { count: 1, el: n };
}
else {
cloud[t].count += 1;
}
max = Math.max(cloud[t].count, max);
}
});
}
jQuery.each(cloud, function(i, n) {
cl[cl.length] = n;
});
if (jQuery.dynaCloud.sort) {
cl.sort(function(a, b) {
if (a.count == b.count) {
return a.el < b.el ? -1 : (a.el == b.el ? 0 : 1);
}
else {
return a.count < b.count ? 1 : -1;
}
});
}
var out;
if ((out = jQuery(outElement ? outElement : '#dynacloud')).length == 0) {
jQuery(document.body).append('<p id="dynacloud"><\/p>');
out = jQuery('#dynacloud');
}
out.empty();
var l = jQuery.dynaCloud.max == -1 ? cl.length : Math.min(jQuery.dynaCloud.max, cl.length);
console.log("Cloud List", cl);
for (var i = 0; i < l; ++i) {
var fontSize = Math.ceil( (cl[i].count / max) * jQuery.dynaCloud.scale );
var adjFontSize = (fontSize > 5) ? 5 : fontSize;
console.log(adjFontSize, " - ", fontSize);
out.append('<a href="#' + cl[i].el + '" style="font-size: ' + adjFontSize + 'em"><span>' + cl[i].el + '</span></a> ');
}
var target = this;
jQuery('a', out).each(function() {
jQuery(this).click(function() {
if (jQuery.dynaCloud.single) {
jQuery(document.body).removeHighlight();
}
var text = jQuery(this).text().toUpperCase();
jQuery(target).each(function() {
jQuery(this).highlight(text);
});
return false;
});
});
});
};