public static TableOfContentsItem GetPreviousTopic(IHaveTopics topic, TopicViewModel topicViewModel)
{
var tocItem = topic as TableOfContentsItem;
if (tocItem != null && topicViewModel?.FlatTopics != null)
{
var index = topicViewModel.FlatTopics.IndexOf(tocItem);
return(index > 0 ? topicViewModel.FlatTopics[index - 1] : null);
}
return(null);
}
public static TableOfContentsItem GetNextTopic(IHaveTopics topic, TopicViewModel topicViewModel)
{
var tocItem = topic as TableOfContentsItem;
if (tocItem != null && topicViewModel?.FlatTopics != null)
{
var index = topicViewModel.FlatTopics.IndexOf(tocItem);
return(index < topicViewModel.FlatTopics.Count - 1 ? topicViewModel.FlatTopics[index + 1] : null);
}
return(null);
}
public static List <TableOfContentsItem> BuildTocFromDynamicToc(dynamic toc, IHaveTopics parent, string selectedTopicTitle, out List <TableOfContentsItem> flatTopicList)
{
var rootTopics = new List <TableOfContentsItem>();
flatTopicList = new List <TableOfContentsItem>();
if (toc == null)
{
return(rootTopics);
}
try
{
if (toc.topics != null)
{
AddTopics(toc.topics, rootTopics, parent, parent, selectedTopicTitle, flatTopicList);
}
}
catch
{
// ignored
}
return(rootTopics);
}
public static bool LinkMatchesTopic(string link, IHaveTopics topic) // This method also exists in topic.js as linkMatchesTopic() and should be kept in sync with this method.
{
if (link == null)
{
return(false);
}
if (topic == null)
{
return(false);
}
if (string.Compare(GetNormalizedName(topic.Slug), link, StringComparison.OrdinalIgnoreCase) == 0)
{
return(true);
}
var normalizedName = GetNormalizedName(link);
if (string.Compare(GetNormalizedName(topic.Title), normalizedName, StringComparison.OrdinalIgnoreCase) == 0)
{
return(true);
}
var normalizedLink = GetNormalizedName(topic.Link);
if (normalizedLink == normalizedName)
{
return(true);
}
var normalizedLinkParts = normalizedLink.Split('.');
if (normalizedLinkParts.Length > 0 && string.Compare(normalizedLinkParts[0], normalizedName, StringComparison.OrdinalIgnoreCase) == 0)
{
return(true);
}
return(false);
}
public static bool SlugMatchesTopic(string slug, IHaveTopics topic, bool ignoreCase = false) // This method also exists in topic.js as slugMatchesTopic() and should be kept in sync with this method.
{
// This is a more discriminating version of LinkMatchesTopic()
if (slug == null)
{
return(false);
}
if (topic == null)
{
return(false);
}
var topicSlug = topic.Slug;
if (topicSlug == null)
{
return(false);
}
if (ignoreCase)
{
slug = slug.ToLowerInvariant();
topicSlug = topicSlug.ToLowerInvariant();
}
while (slug.Length > 0 && slug.StartsWith('/'))
{
slug = slug.Substring(1);
}
while (topicSlug.Length > 0 && topicSlug.StartsWith('/'))
{
topicSlug = topicSlug.Substring(1);
}
return(slug == topicSlug);
}
private static void AddTopics(IEnumerable <dynamic> topics, ICollection <TableOfContentsItem> parentTopics, IHaveTopics parent, IHaveTopics root, string selectedTopicTitle, List <TableOfContentsItem> flatTopicList)
{
foreach (var topic in topics)
{
var newTopic = new TableOfContentsItem(parent, root)
{
Title = topic.title ?? "Unknown topic"
};
if (topic.link != null)
{
newTopic.Link = topic.link;
}
if (topic.isExpanded != null)
{
newTopic.Expanded = topic.isExpanded;
}
if (topic.keywords != null)
{
newTopic.KeywordsRaw = topic.keywords;
}
if (topic.settings != null)
{
newTopic.SettingsDynamic = topic.settings;
}
if (topic.type != null)
{
newTopic.Type = topic.type;
}
if (topic.slug != null)
{
newTopic.Slug = topic.slug;
}
if (topic.seeAlso != null)
{
var seeAlsos = ((string)topic.seeAlso).Split('\n'); // Multiple see-also links separated by new-line
foreach (var seeAlso in seeAlsos)
{
var seeAlsoParts = seeAlso.Split('|'); // If title and link are different, they are separated by |
if (seeAlsoParts.Length > 1)
{
newTopic.SeeAlso.Add(new SeeAlsoTopic {
Title = seeAlsoParts[0], Link = seeAlsoParts[1]
});
}
else if (seeAlsoParts.Length > 0)
{
newTopic.SeeAlso.Add(new SeeAlsoTopic {
Title = seeAlsoParts[0], Link = seeAlsoParts[0]
});
}
}
}
parentTopics.Add(newTopic);
flatTopicList.Add(newTopic);
//if (selectedTopicTitle != null && TopicHelper.LinkMatchesTopic(selectedTopicTitle, newTopic))
//{
// if (root is IHaveSelectedTopic selectedTopicParent)
// selectedTopicParent.SelectedTopic = newTopic;
// EnsureExpanded(newTopic);
//}
if (topic.topics != null)
{
AddTopics(topic.topics, newTopic.Topics, newTopic, root, selectedTopicTitle, flatTopicList);
}
}
}
public static List <TableOfContentsItem> BuildTocFromJson(string tocJson, IHaveTopics parent, string selectedTopicTitle, out List <TableOfContentsItem> flatTopicList)
{
dynamic toc = GetDynamicTocFromJson(tocJson);
return(BuildTocFromDynamicToc(toc, parent, selectedTopicTitle, out flatTopicList));
}
public TableOfContentsItem(IHaveTopics parent, IHaveTopics root)
{
Parent = parent;
Root = root;
}
