/// <summary>
/// Generate a <see cref="PagerRenderingList" /> for a series of <see cref="PagerItem" />.
/// </summary>
/// <param name="items">The collection of <see cref="PagerItem" /> which are included in the list.</param>
/// <param name="context">The generation context.</param>
/// <returns>The generated <see cref="PagerRenderingList" /> instance.</returns>
private PagerRenderingList GenerateRenderingListCore(IEnumerable<PagerItem> items, PagerGenerationContext context)
{
var optionsCache = new Dictionary<PagerItemType, PagerItemOptions>();
var renderingItemList = new List<PagerRenderingItem>();
// Owner
var result = new PagerRenderingList
{
Settings = new Dictionary<string, string>(context.Options.AdditionalSettings)
};
foreach (var item in items)
{
PagerItemOptions itemOptions;
// Try to get cached options, or create a new option instance
if (!optionsCache.TryGetValue(item.ItemType, out itemOptions))
{
itemOptions = context.Options.ItemOptions.GetMergedOptionsFor(item);
optionsCache[item.ItemType] = itemOptions;
}
// Generate item context
var itemContext = new PagerItemGenerationContext(context, item, itemOptions);
// Generate item and add to list
var renderingItem = GenerateRenderingItem(result, itemContext);
renderingItemList.Add(renderingItem);
}
// Result
result.Items = new ReadOnlyCollection<PagerRenderingItem>(renderingItemList);
return result;
}
/// <summary>
/// Generate a <see cref="PagerRenderingItem" /> for the current pager item.
/// </summary>
/// <param name="list">The ownner list of the new item.</param>
/// <param name="context">The generation context.</param>
/// <returns>The generated <see cref="PagerRenderingItem" /> instance.</returns>
private PagerRenderingItem GenerateRenderingItem(PagerRenderingList list, PagerItemGenerationContext context)
{
return new PagerRenderingItem(list)
{
Content = context.PagerItemOptions.Content?.GenerateContent(context),
Link = context.PagerItemOptions.Link?.GenerateLink(context),
Settings = new Dictionary<string, string>(context.PagerItemOptions.AdditionalSettings),
State = GetRenderingItemState(context)
};
}
