public Task <VisualEditorState> GetCurrentAsync()
{
if (_visualEditorStateCache == null)
{
_visualEditorStateCache = new VisualEditorState();
}
return(Task.FromResult(_visualEditorStateCache));
}
/// <summary>
/// Gets the cache value or null if it has not been set.
/// </summary>
public void Set(VisualEditorState data)
{
var cache = _httpContextAccessor.HttpContext?.Items;
if (cache == null)
{
throw new InvalidOperationException("Cannot set the cache outside of a request.");
}
cache[CACHE_KEY] = data;
}
private async Task <string> RenderBlocksToHtml(
PageRegionRenderDetails pageRegion,
Dictionary <string, string> regionAttributes,
VisualEditorState visualEditorState
)
{
// No _permittedBlocks means any is allowed.
var blocksToRender = pageRegion
.Blocks
.Where(m => _permittedBlocks.Count == 0 || _permittedBlocks.Contains(m.BlockType.FileName));
var blockHtmlParts = new List <string>();
foreach (var block in blocksToRender)
{
var renderedBlock = await _blockRenderer.RenderBlockAsync(_viewContext, _pageViewModel, block);
blockHtmlParts.Add(renderedBlock);
}
string blocksHtml = string.Empty;
if (blockHtmlParts.Any())
{
if (!_allowMultipleBlocks)
{
// If for some reason another block has been added in error, make sure we only display one.
blocksHtml = blockHtmlParts.Last();
}
else
{
blocksHtml = string.Join(string.Empty, blockHtmlParts);
}
}
else
{
regionAttributes.Add("data-cms-page-region-empty", string.Empty);
if (!_allowMultipleBlocks && visualEditorState.VisualEditorMode == VisualEditorMode.Edit)
{
// If there are no blocks and this is a single block region
// add a placeholder element so we always have a menu
blocksHtml = _blockRenderer.RenderPlaceholderBlock(_emptyContentMinHeight);
}
}
return(blocksHtml);
}
