public PostInteraction ReadInteraction(XmlNode nodeRepresentation)
{
PostInteraction interaction = new PostInteraction();
interaction.Post = new Post();
interaction.Post.Title = "";
foreach (XmlNode child in nodeRepresentation.ChildNodes)
{
if (child.Name == this.PostUrl_Tag)
{
interaction.Post.Source = this.ReadText(child);
continue;
}
if (child.Name == this.PostVisited_Tag)
{
interaction.Visited = this.ReadBool(child);
continue;
}
if (child.Name == this.PostStarred_Tag)
{
interaction.Starred = this.ReadBool(child);
continue;
}
if (child.Name == this.PostTitle_Tag)
{
interaction.Post.Title = this.ReadText(child);
continue;
}
}
return(interaction);
}
private AnalyzedPost analyzePost(Post post)
{
string title = post.Title;
double score = this.scoreTitle(title);
List <AnalyzedString> titleComponents = new List <AnalyzedString>();
List <String> words = new List <String>(title.Split(new char[] { ' ' }));
for (int i = 0; i < words.Count; i++)
{
List <String> hypotheticalWords = new List <String>(words);
hypotheticalWords.RemoveAt(i);
double hypotheticalScore = this.scoreTitle(string.Join(" ", hypotheticalWords));
double difference = score.CompareTo(hypotheticalScore);
titleComponents.Add(new AnalyzedString(words[i], difference));
}
for (int i = titleComponents.Count - 1; i >= 1; i--)
{
if (titleComponents[i].Score == titleComponents[i - 1].Score)
{
titleComponents[i - 1] = new AnalyzedString(titleComponents[i - 1].Text + " " + titleComponents[i].Text, titleComponents[i].Score);
titleComponents.RemoveAt(i);
}
}
PostInteraction interaction = this.postDatabase.Get(post);
if (interaction.Visited)
{
score -= 1;
}
return(new AnalyzedPost(interaction, score, titleComponents));
}
public string ConvertToString(PostInteraction post)
{
Dictionary <string, string> properties = new Dictionary <string, string>();
properties[this.PostUrl_Tag] = this.XmlEscape(post.Post.Source);
properties[this.PostTitle_Tag] = this.XmlEscape(post.Post.Title);
if (post.Visited)
{
properties[this.PostVisited_Tag] = this.ConvertToStringBody(true);
}
if (post.Starred)
{
properties[this.PostStarred_Tag] = this.ConvertToStringBody(true);
}
return(this.ConvertToString(properties, PostTag));
}
public PostInteraction Get(Post post)
{
string key = post.Source;
if (this.keyedInteractions.ContainsKey(key))
{
PostInteraction interaction = this.keyedInteractions[key];
interaction.Post = post;
return(interaction);
}
else
{
PostInteraction interaction = new PostInteraction();
interaction.Post = post;
this.Add(interaction);
return(interaction);
}
}
public void ShrinkToSize(int size)
{
if (this.orderedInteractions.Count <= size)
{
return;
}
int numToRemove = this.orderedInteractions.Count - size;
List <PostInteraction> newOrderedInteractions = new List <PostInteraction>();
Dictionary <string, PostInteraction> newKeyedInteractions = new Dictionary <string, PostInteraction>();
int numSkipped = 0;
for (int i = 0; i < this.orderedInteractions.Count; i++)
{
bool include = false;
if (numSkipped >= numToRemove)
{
include = true;
}
else
{
if (this.orderedInteractions[i].Starred)
{
include = true;
}
}
if (include)
{
PostInteraction interaction = this.orderedInteractions[i];
newOrderedInteractions.Add(interaction);
newKeyedInteractions.Add(interaction.Post.Source, interaction);
}
else
{
numSkipped++;
}
}
this.orderedInteractions = newOrderedInteractions;
this.keyedInteractions = newKeyedInteractions;
}
public void Add(PostInteraction interaction)
{
this.orderedInteractions.Add(interaction);
this.keyedInteractions[interaction.Post.Source] = interaction;
}
public AnalyzedPost(PostInteraction Interaction, double Score, List <AnalyzedString> analyzedTitle)
{
this.Interaction = Interaction;
this.Score = Score;
this.TitleComponents = analyzedTitle;
}
private void PostView_PostClicked(PostInteraction interaction)
{
this.savePostDatabase();
Device.OpenUri(new Uri(interaction.Post.Source));
}
private void PostView_PostStarred(PostInteraction post)
{
this.savePostDatabase();
}
