/// <summary>
/// Class for a block creation ev.
/// </summary>
/// <param name="block">The created block. Null for a blank ev.</param>
public Create(Block block)
: base(block, Events.CREATE)
{
if (block == null)
{
return; // Blank ev to be populated by fromJson.
}
xml = Xml.blockToDomWithXY(block);
ids = Events.getDescendantIds_(block);
}
/// <summary>
/// Encode a block tree as XML.
/// </summary>
/// <param name="workspace">workspace The workspace containing blocks.</param>
/// <param name="opt_noId">True if the encoder should skip the block ids.</param>
/// <returns>XML document.</returns>
public static Element workspaceToDom(Workspace workspace, bool opt_noId = false)
{
var xml = goog.dom.createDom("xml");
var blocks = workspace.getTopBlocks(true);
foreach (var block in blocks)
{
xml.AppendChild(Xml.blockToDomWithXY(block, opt_noId));
}
return(xml);
}
/// <summary>
/// Class for a block deletion ev.
/// </summary>
/// <param name="block">The deleted block. Null for a blank ev.</param>
public Delete(Block block)
: base(block, Events.DELETE)
{
if (block == null)
{
return; // Blank ev to be populated by fromJson.
}
if (block.getParent() != null)
{
throw new Exception("Connected blocks cannot be deleted.");
}
oldXml = Xml.blockToDomWithXY(block);
ids = Events.getDescendantIds_(block);
}