var ts_entries; var ts_search; var ts_json;
var ts_area_id  = "ts_content_list";
ts_blog_url    += ts_blog_url.match(new RegExp("/$")) ? "" : "/";
var ts_feed_url = ts_blog_url + "feeds/posts/default?alt=json-in-script&callback=ts_onLoadFeed&max-results=500";

function TS_Entries(json){
    this.json = json;
    
    this.all_entries = [];
    var entries = json.feed.entry;
    for(var i=0; i<entries.length; i++){
        var json_entry = entries[i];
        var entry_obj  = new TS_Entry(json_entry);
        this.all_entries.push(entry_obj);
    }

    this.length = this.all_entries.length;
    this.entries = [];

    this.clearEntries = function(idplace){
        this.entries = [];
        document.getElementById(idplace).innerHTML = "";
    }
    this.createEntries = function(){
        var entries_obj_list = [];
        var entries = this.json.feed.entry;
        for(var i=0; i<entries.length; i++){
            var json_entry = entries[i];
            var entry_obj  = new TS_Entry(json_entry);
            entries_obj_list.push(entry_obj);
        }
        return entries_obj_list;
    }
    this.getEntryById = function(id){
        for(var i=0; i<this.all_entries.length; i++){
            if(this.all_entries[i].id == id){return this.all_entries[i];}
        } return null;
    }
    this.selectSomeEntries = function(sfunc){
        var entries = [];
        for(var i=0; i<this.length; i++){
            var entry = this.all_entries[i];
            if(sfunc(entry)){entries.push(entry);}
        }
        this.entries = entries;
    }
    this.showEntries = function(idplace){
        var s = "<div style='text-align:right; font-size:80%'>";
        s += "<a href='javascript:ts_entries.clearEntries(ts_area_id)'>[x]</a>";
        s += "</div>";
        if(this.entries.length != 0){
            for(var i=0; i<this.entries.length; i++){
                var entry = this.entries[i];
                s += entry.getTitleCode();
            }
        } else {
            s += "<div style='text-align:center'>"+ts_NO_RESULTS+"</div>";
        }
        s += "<div style='text-align:right; font-size:80%'>";
        s += "Widget by: ";
        s += "<a href='http://infotentangblog.blogspot.com/2009/08/title-search-widget.html'>Info Blog</a>";
        s += "</div>";
        document.getElementById(idplace).innerHTML = s;
    }
}
function TS_Entry(json_entry){
    this.id    = json_entry.id.$t;
    this.title = json_entry.title.$t;
    this.links = json_entry.link;

    this.content = json_entry.content ? json_entry.content.$t : json_entry.summary.$t;

    this.href = null;
    for(var i=0; i<this.links.length; i++){
        if(this.links[i].rel == "alternate"){this.href = this.links[i].href;}
    }

    this.getTitleCode = function(){
        var searchValue = ts_search.value;
        var title = this.title;
        if(searchValue){
            var pattern = new RegExp("\\b(" + searchValue + ")", "gi");
            title = title.replace(pattern, "<b>$1</b>");
        }
        var s = "<span title='"+ts_SEE_SUMMARY+"' onclick='ts_showHideSummary(\""+this.id+"\")' ";
        s += "style='cursor:pointer' id='ts_arrow_" + this.id + "'>►</span> ";
        s += "<a href='" + this.href + "'>" + title + "</a> <br/>";
        s += "<span class='ts_content' id='ts_content_" + this.id + "'></span>";
        return s;
    }
    this.shortenContent = function(){
        var content = this.content;
        content = stripHTML(content);
        if(content.length > ts_summary_length){
            content = content.substr(0, ts_summary_length);
            if(content.charAt(content.length-1) != " "){content = content.substr(0, content.lastIndexOf(" ")+1);}
            content += "...";
        }
        this.content = content;
    }
    this.showHideSummary = function(){
        var p = document.getElementById("ts_content_" + this.id);
        var arrow = document.getElementById("ts_arrow_" + this.id);
        this.shortenContent();
        if(p.innerHTML == ""){
            p.innerHTML = this.content + "<br/>";
            arrow.innerHTML = "▼";
            arrow.title = ts_HIDE_SUMMARY;
        } else {
            p.innerHTML = "";
            arrow.innerHTML = "►";
            arrow.title = ts_SEE_SUMMARY;
        }
    }
}
function TS_Search(){
    this.value = "";
    this.setValue = function(value){
        this.value = value.replace(" ", "\\W+", "g");
    }
}
function ts_loadFeed(){
    if(ts_json){return;}
    var obj = document.getElementById(ts_area_id);
    obj.innerHTML = ts_LOADING;
    var script = document.createElement("script");
    script.setAttribute("src", ts_feed_url);
    script.setAttribute("type", "text/javascript");
    obj.appendChild(script);
}
function ts_titleSearch(strToSearch){
    ts_search.setValue(strToSearch);
    if(strToSearch == ""){ts_entries.clearEntries(ts_area_id);}
    else{
        var sfunc = function(entry){
            var pattern = new RegExp("\\b" + ts_search.value, "i");
            return entry.title.match(pattern);
        }
        ts_entries.selectSomeEntries(sfunc);
        ts_entries.showEntries(ts_area_id);
    }
}
function ts_showHideSummary(id){
    var entry = ts_entries.getEntryById(id);
    entry.showHideSummary();
}
function ts_onLoadFeed(json){
    ts_json = json;
    ts_entries = new TS_Entries(json);
    ts_search = new TS_Search();
    document.getElementById(ts_area_id).innerHTML = ts_TYPE_KEYWORDS;
    setTimeout("ts_entries.clearEntries(ts_area_id)", 1000);
}
function stripHTML(s) {
    var c;
    var intag = false; var newstr = "";
    for(var i=0; i<s.length; i++){
        c = s.charAt(i);
        if(c=="<"){intag = true;}
        else if(c==">"){intag = false;}
        if(c == ">"){newstr += " ";}
        else if(!intag){newstr += c;}
    }
    return newstr;
}