1 var THRESHOLD = 10,

     2     DROPCOUNT = 12;

     3 

     4 var swTw = {

     5     "tweets" : [],

     6     "tweetsIndex" : [],

     7     "twInCol" : [],

     8     "firstDisplayedTweet" : 0,

     9     "cursor" : -1,

    10     "annotations" : {

    11         "positive" : {

    12             "keyword" : "++",

    13             "colors" : {

    14                 "tweet" : "#c5e7cd",

    15                 "timeline" : "#1D973D"

    16             }

    17         },

    18         "negative" : {

    19             "keyword" : "--",

    20             "colors" : {

    21                 "tweet" : "#f6ced0",

    22                 "timeline" : "#CE0A15"

    23             }

    24         },

    25         "reference" : {

    26             "keyword" : "==",

    27             "colors" : {

    28                 "tweet" : "#efefa1",

    29                 "timeline" : "#C5A62D"

    30             }

    31         },

    32         "question" : {

    33             "keyword" : "??",

    34             "colors" : {

    35                 "tweet" : "#bfdbec",

    36                 "timeline" : "#036AAE"

    37             }

    38         }

    39     }

    40 }

    41 

    42 function highlightKeyword(stra, strb, color) {

    43     var rgxp = RegExp( '(' + strb.replace(/(\W)/gm, '\\$1') + ')', "gim");

    44     return stra.replace(rgxp, '<span class="highlight" style="background:' + color + ';">$1</span>');

    45 }

    46 

    47 function highlightText(txt) {

    48     res = suggested_keywords.reduce(function(a, b) {

    49         return highlightKeyword(a,b, '#333333');

    50     }, txt);

    51     res = _(swTw.annotations).reduce(function(a, b) {

    52         return (b.keyword ? highlightKeyword(a,b.keyword,b.colors.timeline) : a);

    53     }, res);

    54     return res;

    55 }

    56 

    57 function nextTweet() {

    58     if (!swTw.tweets.length) {

    59         return;

    60     }

    61     if (swTw.cursor < swTw.tweets.length - 1) {

    62         swTw.cursor = Math.max(swTw.cursor + 1, swTw.tweets.length - 120);

    63         var tweet = swTw.tweets[swTw.cursor],

    64             html = '<img src="'

    65                 + tweet.profile_image_url

    66                 + '" /><p>@'

    67                 + tweet.from_user

    68                 + ' ('

    69                 + tweet.from_user_name

    70                 + ')'

    71                 + '</p><p class="tweet_text">'

    72                 + highlightText(tweet.text)

    73                 + '</p>';

    74         $("#tweetcont").html(html)

    75     } else {

    76         $("#tweetcont").html("")

    77     }

    78 }

    79 

    80 function dropOldTweets() {

    81     var _newPos = swTw.firstDisplayedTweet + DROPCOUNT;

    82     _(swTw.tweets.slice(swTw.firstDisplayedTweet,_newPos)).each(function(tweet) {

    83         swTw.twInCol = _(swTw.twInCol).map(function(col) {

    84            return _(col).without(tweet.id_str);

    85         });

    86         _(tweet.elements).each(function(elid) {

    87             $("#" + elid).animate({

    88                 "width": "0px"

    89             },

    90             2000,

    91             function() {

    92                 $(this).detach();

    93             })

    94         });

    95     });

    96     swTw.firstDisplayedTweet = _newPos;

    97 }

    98 

    99 function callbackTweets(tweets) {

   100     _(tweets).each(function(tweet) {

   101         var tl = tweet.text.toLowerCase();

   102         tweet.columns = suggested_keywords.filter(function(word) {

   103             return tl.search(word) != -1

   104         });

   105         tweet.elements = [];

   106         _(tweet.columns).each(function(word) {

   107             var iword = suggested_keywords.indexOf(word),

   108                 icol = ( swTw.twInCol[iword*2+1].length < swTw.twInCol[iword*2].length ? iword*2+1 : iword*2 ),

   109                 elid = 'avatar_' + tweet.id_str + '_' + iword,

   110                 colA = swTw.colAnnot[iword],

   111                 ttl = 0;

   112             _(swTw.annotations).each(function(v,k) {

   113                if (tweet.text.indexOf(v.keyword) != -1) {

   114                    colA[k]++;

   115                    ttl++;

   116                }

   117             });

   118             colA.total += Math.max(1,ttl);

   119             $('#tube_' + icol).append(

   120                 '<div class="avatar" id="'

   121                 + elid

   122                 + '" style="margin-right: 500px;"><img src="'

   123                 + tweet.profile_image_url

   124                 + '" /></div>'

   125             );

   126             tweet.elements.push(elid);

   127             swTw.twInCol[icol].push(tweet.id_str);

   128             $("#" + elid).animate({

   129                 "margin-right" : "0px"

   130             },

   131             2000);

   132         })

   133         swTw.tweets.push(tweet);

   134         swTw.tweetsIndex.push(tweet.id_str);

   135     });

   136     while (_(swTw.twInCol).any(function(col) {

   137         return col.length > THRESHOLD

   138     })) {

   139         dropOldTweets();

   140     }

   141     _(swTw.colAnnot).each(function(colA, i) {

   142         _(swTw.annotations).each(function(v, k) {

   143            $("#polemic_" + i + "_" + k).css("width", ~~(100 * colA[k] / colA.total) + "%"); 

   144         });

   145     })

   146 }

   147 

   148 function retrieveTweets() {

   149     var options =  {

   150 //        "keyword" : swTw.columns_words.join(" OR "),

   151 //        "lang" : "fr",

   152         "keyword" : tracking_keywords.join(" OR "),

   153         "pages" : 1,

   154         "rpp" : 100,

   155         "cbEnd" : function() {

   156             callbackTweets(this.tweets);

   157             }

   158         }

   159     if (swTw.tweets.length) {

   160         options.since_id = swTw.tweets[swTw.tweets.length - 1].id_str;

   161     }

   162     getTweets(options);

   163 }

   164 

   165 function getTweets(options) {

   166     function getTweetUrl(url) {

   167         $.getJSON(url, function(data) {

   168             options.tweets = options.tweets.concat(data.results);

   169             options.currentPage = data.page;

   170             if (options.cbData) {

   171                 options.cbData();

   172             }

   173             if (data.next_page && data.page < options.pages) {

   174                 getTweetUrl(baseurl + data.next_page + suffix);

   175             } else {

   176                 options.tweets.sort(function(a,b) {

   177                    return a.id - b.id; 

   178                 });

   179                 if (options.cbEnd) {

   180                     options.cbEnd();

   181                 }

   182             }

   183         });

   184     }

   185     

   186     options.tweets = [];

   187     options.pages || (options.pages = 1);

   188     options.rpp || (options.rpp = 100);

   189     options.currentPage = 0;

   190     

   191     var baseurl = "http://search.twitter.com/search.json",

   192         suffix = (options.since_id ? "&since_id=" + options.since_id : '' ) + "&callback=?",

   193         jsonurl = baseurl + "?q=" + encodeURIComponent(options.keyword)+ "&rpp=" + options.rpp

   194             + (options.lang ? "&lang=" + options.lang : '' ) + suffix;

   195     getTweetUrl(jsonurl);

   196 }

   197 

   198 $(document).ready(function() {

   199     $("#columncont").html( suggested_keywords.map(

   200         function(mot, i) {

   201             return '<div class="column" id="column_'

   202             + i

   203             + '"><div class="column-tube"><div class="tube" id="tube_'

   204             + (2*i)

   205             + '"></div><div class="tube" id="tube_'

   206             + (2*i+1)

   207             + '"></div></div><div class="column-title">'

   208             + _(swTw.annotations).map(function(v,k) {

   209                 return '<div class="polemicvol" id="polemic_' 

   210                     + i

   211                     + '_'

   212                     + k

   213                     + '" style="background:'

   214                     + v.colors.timeline

   215                     + '"></div>'

   216             }).join('')

   217             +'<h3>'

   218             + mot

   219             + '</h3></div></div>'

   220         }

   221     ).join("") );

   222    

   223    for (var i = 0; i < suggested_keywords.length * 2; i++) {

   224        swTw.twInCol.push([]);

   225    }

   226    

   227    swTw.colAnnot = suggested_keywords.map(function() {

   228       var res = { "total" : 0 }

   229       _(swTw.annotations).map(function(v,k) {

   230           res[k] = 0;

   231       });

   232       return res;

   233    });

   234    

   235    retrieveTweets();

   236    

   237    setInterval(retrieveTweets, 5000);

   238    

   239    setInterval(nextTweet, 6000);

   240     

   241 });