/// <summary>
/// Perform an automatic placement of the block. Also updates the configuration of
/// the block to match where it was placed.
/// </summary>
/// <param name="config">The user configuration information to update.</param>
/// <param name="block">The block wrapper tha tmus tbe placed.</param>
/// <param name="columns">The dashboard columns in the UI.</param>
private void AutoConfigBlockPlacement(DashboardConfig config, DashboardBlockWrapper block, List <DashboardColumn> columns, bool isRequired)
{
var shortestColumn = columns.OrderBy(c => c.Placeholder.Controls.Count).First();
if (isRequired)
{
block.Config.Column = columns.IndexOf(shortestColumn);
block.Config.Order = 0;
int i = 1;
config.Blocks.Where(b => b.Column == block.Config.Column && b.BlockId != block.Config.BlockId)
.ToList()
.ForEach(b => b.Order = i++);
columns[block.Config.Column].Placeholder.Controls.AddAt(0, block);
}
else
{
block.Config.Column = columns.IndexOf(shortestColumn);
block.Config.Order = 999;
int i = 0;
config.Blocks.Where(b => b.Column == block.Config.Column)
.ToList()
.ForEach(b => b.Order = i++);
columns[block.Config.Column].Placeholder.Controls.Add(block);
}
}
/// <summary>
/// Build and layout all the blocks onto the web page.
/// </summary>
/// <param name="config">User configuration data that specifies how things should be laid out.</param>
private void BuildBlocks(DashboardConfig config)
{
var sourcePageGuid = GetAttributeValue("SourcePage").AsGuidOrNull();
if (sourcePageGuid.HasValue)
{
var sourcePage = PageCache.Read(sourcePageGuid.Value);
if (sourcePage != null)
{
var blocks = GetAvailableBlocks();
Panel pnlRow = new Panel {
CssClass = "row"
};
List <DashboardBlockWrapper> dashboardBlocks = new List <DashboardBlockWrapper>();
bool needSave = false;
phControls.Controls.Add(pnlRow);
var columns = BuildColumns(config, pnlRow);
foreach (var block in blocks)
{
DashboardBlockConfig blockConfig = null;
blockConfig = config.Blocks.Where(b => b.BlockId == block.BlockId).FirstOrDefault();
if (blockConfig == null)
{
blockConfig = new DashboardBlockConfig(block.BlockId);
blockConfig.Visible = block.DefaultVisible;
config.Blocks.Add(blockConfig);
needSave = true;
}
if (block.Required)
{
blockConfig.Visible = true;
}
if (blockConfig.Visible)
{
var control = TemplateControl.LoadControl(block.BlockCache.BlockType.Path);
control.ClientIDMode = ClientIDMode.AutoID;
var blockControl = control as RockBlock;
bool canEdit = block.BlockCache.IsAuthorized(Authorization.EDIT, CurrentPerson);
bool canAdministrate = block.BlockCache.IsAuthorized(Authorization.ADMINISTRATE, CurrentPerson);
blockControl.SetBlock(PageCache, block.BlockCache, canEdit, canAdministrate);
block.BlockCache.BlockType.SetSecurityActions(blockControl);
var blockWrapper = new DashboardBlockWrapper(blockControl, block.BlockCache, blockConfig);
blockWrapper.ShowDelete = !block.Required;
dashboardBlocks.Add(blockWrapper);
}
}
//
// Add all the blocks that are properly layed out already.
//
var existingBlocks = dashboardBlocks.Where(b => b.Config.Column < columns.Count);
foreach (var blockGroup in existingBlocks.GroupBy(b => b.Config.Column))
{
var sortedBlocks = blockGroup.OrderBy(b => b.Config.Order);
foreach (var block in sortedBlocks)
{
columns[block.Config.Column].Placeholder.Controls.Add(block);
}
}
//
// Add in blocks that are new or don't currently fit.
//
var newBlocks = dashboardBlocks.Where(b => b.Config.Column >= columns.Count);
foreach (var blockGroup in newBlocks.GroupBy(b => b.Config.Column))
{
var sortedBlocks = blockGroup.OrderBy(b => b.Config.Order);
foreach (var block in sortedBlocks)
{
bool isRequired = blocks.Where(b => b.BlockId == block.Config.BlockId).First().Required;
AutoConfigBlockPlacement(config, block, columns, isRequired);
needSave = true;
}
}
//
// Cleanup the config for any blocks that don't exist anymore.
//
var missingKeys = config.Blocks
.Where(b => !blocks.Where(db => b.BlockId == db.BlockId).Any())
.Select(b => b.BlockId)
.ToList();
foreach (var missingKey in missingKeys)
{
config.Blocks.RemoveAll(b => b.BlockId == missingKey);
needSave = true;
}
if (needSave)
{
SaveConfig(config);
}
}
}
}