/// <summary>
/// Render twitter status from template and render it
/// </summary>
/// <param name="status"></param>
/// <returns></returns>
private string RenderStatus(TwitterStatus status)
{
// try search if contains any eval scripts
var html = RenderEvalScripts(_twitter.StatusTemplate, status);
// render control directly if template not contains eval scripts
if (string.IsNullOrEmpty(html)) {
var pHolder = new ListViewDataItem(0, 0) { DataItem = status };
_twitter.StatusTemplate.InstantiateIn(pHolder);
pHolder.DataBind();
html = RenderControl(pHolder);
}
return html;
}
/// <summary>
/// Search eval scripts in template and render it with appropriate values from status.
/// If template doesn't contains eval scripts, it will returns null.
/// </summary>
/// <param name="template">Template Target</param>
/// <param name="status">Twitter Status</param>
/// <returns>Returns null if no eval scripts</returns>
private string RenderEvalScripts(ITemplate template, TwitterStatus status)
{
// search is there any eval scripts
var tempHtml = PersistTemplate(template);
var r1 = new Regex(@"(<%#) ?.*eval?.*%>", RegexOptions.IgnoreCase);
var matches = r1.Matches(tempHtml);
_valCounter = 0;
_values = new List<string>();
// manualy extract eval scripts if any
if (matches.Count > 0) {
var r2 = new Regex(@"""(.*?)""");
foreach (var match in matches) {
var evalData = r2.Match(match.ToString()).ToString();
evalData = evalData.Substring(1, evalData.Length - 2);
object value = null;
if (evalData.Contains(".")) {
var props = evalData.Split(new string[] { "." }, StringSplitOptions.RemoveEmptyEntries);
var propVal1 = typeof(TwitterStatus).GetProperty(props[0]).GetValue(status, null);
if (propVal1 != null)
value = propVal1.GetType().GetProperty(props[1]).GetValue(propVal1, null);
} else {
value = typeof(TwitterStatus).GetProperty(evalData).GetValue(status, null);
}
if (value == null)
value = "[" + evalData + "]";
_values.Add(value.ToString());
}
var evaluator = new MatchEvaluator(FillStatusValue);
return r1.Replace(tempHtml, evaluator);
}
return null;
}
/// <summary>
/// Executes search query against the Twitter API
/// </summary>
/// <param name="search">The search query</param>
/// <param name="count">The number of results to return</param>
/// <returns></returns>
public IList<TwitterStatus> GetSearch(string search, int count)
{
// Build query URL
var sb = new StringBuilder();
sb.AppendFormat(
"http://search.twitter.com/search.atom?q={0}&rpp={1}",
HttpUtility.UrlEncode(search),
count
);
var queryUrl = sb.ToString();
// Execute query
var results = this.Query(queryUrl);
// Parse results
var defaultNS = "{http://www.w3.org/2005/Atom}";
var statuses = new List<TwitterStatus>();
var entries = from e in results.Descendants(defaultNS + "entry")
select e;
foreach (var entry in entries) {
var newUser = new TwitterUser {
Name = entry.Descendants(defaultNS + "name").FirstOrDefault().Value,
ProfileImageUrl = entry.Elements(defaultNS + "link")
.Where(link => (string)link.Attribute("rel") == "image")
.Select(link => (string)link.Attribute("href"))
.First()
};
var newStatus = new TwitterStatus {
CreatedAt = DateTime.Parse(entry.Element(defaultNS + "published").Value),
Text = entry.Element(defaultNS + "content").Value,
User = newUser
};
statuses.Add(newStatus);
}
return statuses.ToList();
}
