/// <summary>
/// Parse the provided toolbox tree into a consistent DOM format.
/// </summary>
/// <param name="tree_">DOM tree of blocks, or text representation of same.</param>
/// <returns>tree of blocks, or null.</returns>
public static Element parseToolboxTree(Union <string, Element> tree_)
{
Element tree = tree_.As <Element>();
if (tree_ != null)
{
if (!tree_.Is <string>())
{
if (false /*typeof XSLTProcessor == 'undefined' && tree.outerHTML*/)
{
// In this case the tree will not have been properly built by the
// browser. The HTML will be contained in the element, but it will
// not have the proper DOM structure since the browser doesn't support
// XSLTProcessor (XML -> HTML). This is the case in IE 9+.
tree_ = tree_.As <Element>().OuterHTML;
}
else if (!(tree_.Is <Element>()))
{
tree = null;
}
}
if (tree_.Is <string>())
{
tree = Xml.textToDom(tree_.As <string>());
}
}
else
{
tree = null;
}
return(tree);
}
/// <summary>
/// Run a change event.
/// </summary>
/// <param name="forward">True if run forward, false if run backward (undo).</param>
public override void run(bool forward)
{
var workspace = Workspace.getById(this.workspaceId);
var block = (BlockSvg)workspace.getBlockById(this.blockId);
if (block == null)
{
Console.WriteLine("Can't change non-existant block: " + this.blockId);
return;
}
if (block.mutator != null)
{
// Close the mutator (if open) since we don't want to update it.
block.mutator.setVisible(false);
}
var value = forward ? this.newValue : this.oldValue;
switch (this.element)
{
case "field":
var field = block.getField(this.name);
if (field != null)
{
// Run the validator for any side-effects it may have.
// The validator's opinion on validity is ignored.
field.callValidator(value);
field.setValue(value);
}
else
{
Console.WriteLine("Can't set non-existant field: " + this.name);
}
break;
case "comment":
block.setCommentText(value);
break;
case "collapsed":
block.setCollapsed(value == "true");
break;
case "disabled":
block.setDisabled(value == "true");
break;
case "inline":
block.setInputsInline(value == "true");
break;
case "mutation":
var oldMutation = "";
if (true /*block.mutationToDom*/)
{
var oldMutationDom = block.mutationToDom();
oldMutation = oldMutationDom != null?oldMutationDom.ToString() : Xml.domToText(oldMutationDom);
}
if (true /*block.domToMutation*/)
{
value = value != null ? value : "<mutation></mutation>";
var dom = Xml.textToDom("<xml>" + value + "</xml>");
block.domToMutation((Element)dom.FirstChild);
}
Events.fire(new Events.Change(
block, "mutation", null, oldMutation, value));
break;
default:
Console.WriteLine("Unknown change type: " + this.element);
break;
}
}
/// <summary>
/// Decode the JSON event.
/// </summary>
/// <param name="json">JSON representation.</param>
public override void fromJson(EventJsonData json)
{
base.fromJson(json);
this.xml = (Element)Xml.textToDom("<xml>" + json.xml + "</xml>").FirstChild;
this.ids = json.ids;
}
