/// <summary>
/// Fetch the type(s) defined in the given input.
/// </summary>
/// <param name="block"> Block with input.</param>
/// <param name="name">Name of the input.</param>
/// <returns>List of types.</returns>
private static JsArray <string> getTypesFrom_(Blockly.Block block, string name)
{
var typeBlock = block.getInputTargetBlock(name);
JsArray <string> types;
if (typeBlock == null || typeBlock.disabled)
{
types = new JsArray <string>();
}
else if (typeBlock.type == "type_other")
{
types = new JsArray <string> {
FactoryUtils.escapeString(typeBlock.getFieldValue("TYPE"))
};
}
else if (typeBlock.type == "type_group")
{
types = new JsArray <string>();
for (var n = 0; n < ((TypeGroup)typeBlock).typeCount_; n++)
{
types = types.Concat(FactoryUtils.getTypesFrom_(typeBlock, "TYPE" + n));
}
// Remove duplicates.
var hash = new Dictionary <string, object>();
for (var n = types.Length - 1; n >= 0; n--)
{
if (hash.ContainsKey(types[n]))
{
types.Splice(n, 1);
}
hash[types[n]] = true;
}
}
else
{
var fi = typeBlock.GetType().GetField("valueType", System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.Public);
types = new JsArray <string> {
FactoryUtils.escapeString((string)fi.GetValue(null))
};
}
return(types);
}
/// <summary>
/// Returns field strings and any config.
/// </summary>
/// <param name="block">Input block.</param>
/// <returns>Field strings.</returns>
private static JsArray <string> getFieldsJs_(Blockly.Block block)
{
var fields = new JsArray <string>();
while (block != null)
{
if (!block.disabled && !block.getInheritedDisabled())
{
switch (block.type)
{
case "field_static":
// Result: "hello"
fields.Push(FactoryUtils.escapeString(block.getFieldValue("TEXT")));
break;
case "field_input":
// Result: new Blockly.FieldTextInput("Hello"), "GREET"
fields.Push("new Blockly.FieldTextInput(" +
FactoryUtils.escapeString(block.getFieldValue("TEXT")) + "), " +
FactoryUtils.escapeString(block.getFieldValue("FIELDNAME")));
break;
case "field_number":
// Result: new Blockly.FieldNumber(10, 0, 100, 1), "NUMBER"
var args = new JsArray <double> {
Script.ParseFloat(block.getFieldValue("VALUE")),
Script.ParseFloat(block.getFieldValue("MIN")),
Script.ParseFloat(block.getFieldValue("MAX")),
Script.ParseFloat(block.getFieldValue("PRECISION"))
};
// Remove any trailing arguments that aren't needed.
if (args[3] == 0)
{
args.Pop();
if (args[2] == Double.PositiveInfinity)
{
args.Pop();
if (args[1] == Double.NegativeInfinity)
{
args.Pop();
}
}
}
fields.Push("new Blockly.FieldNumber(" + args.Join(", ") + "), " +
FactoryUtils.escapeString(block.getFieldValue("FIELDNAME")));
break;
case "field_angle":
// Result: new Blockly.FieldAngle(90), "ANGLE"
fields.Push("new Blockly.FieldAngle(" +
Script.ParseFloat(block.getFieldValue("ANGLE")) + "), " +
FactoryUtils.escapeString(block.getFieldValue("FIELDNAME")));
break;
case "field_checkbox":
// Result: new Blockly.FieldCheckbox("TRUE"), "CHECK"
fields.Push("new Blockly.FieldCheckbox(" +
FactoryUtils.escapeString(block.getFieldValue("CHECKED")) +
"), " +
FactoryUtils.escapeString(block.getFieldValue("FIELDNAME")));
break;
case "field_colour":
// Result: new Blockly.FieldColour("#ff0000"), "COLOUR"
fields.Push("new Blockly.FieldColour(" +
FactoryUtils.escapeString(block.getFieldValue("COLOUR")) +
"), " +
FactoryUtils.escapeString(block.getFieldValue("FIELDNAME")));
break;
case "field_date":
// Result: new Blockly.FieldDate("2015-02-04"), "DATE"
fields.Push("new Blockly.FieldDate(" +
FactoryUtils.escapeString(block.getFieldValue("DATE")) + "), " +
FactoryUtils.escapeString(block.getFieldValue("FIELDNAME")));
break;
case "field_variable":
// Result: new Blockly.FieldVariable("item"), "VAR"
var varname
= FactoryUtils.escapeString(block.getFieldValue("TEXT") ?? null);
fields.Push("new Blockly.FieldVariable(" + varname + "), " +
FactoryUtils.escapeString(block.getFieldValue("FIELDNAME")));
break;
case "field_dropdown":
// Result:
// new Blockly.FieldDropdown([["yes", "1"], ["no", "0"]]), "TOGGLE"
var options = new JsArray <string>();
for (var i = 0; i < ((FieldDropdown)block).optionCount_; i++)
{
options[i] = "[" +
FactoryUtils.escapeString(block.getFieldValue("USER" + i)) +
", " +
FactoryUtils.escapeString(block.getFieldValue("CPU" + i)) + "]";
}
if (options.Length > 0)
{
fields.Push("new Blockly.FieldDropdown([" +
options.Join(", ") + "]), " +
FactoryUtils.escapeString(block.getFieldValue("FIELDNAME")));
}
break;
case "field_image":
// Result: new Blockly.FieldImage("http://...", 80, 60)
var src = FactoryUtils.escapeString(block.getFieldValue("SRC"));
var width = Convert.ToDouble(block.getFieldValue("WIDTH"));
var height = Convert.ToDouble(block.getFieldValue("HEIGHT"));
var alt = FactoryUtils.escapeString(block.getFieldValue("ALT"));
fields.Push("new Blockly.FieldImage(" +
src + ", " + width + ", " + height + ", " + alt + ")");
break;
}
}
block = block.nextConnection == null ? null : block.nextConnection.targetBlock();
}
return(fields);
}
/// <summary>
/// Update the language code as JavaScript.
/// </summary>
/// <param name="blockType"> Name of block.</param>
/// <param name="rootBlock"> Factory_base block.</param>
/// <param name="workspace"></param> Where the root block lives.
/// <returns>Generated language code.</returns>
private static string formatJavaScript_(string blockType, Blockly.Block rootBlock, Blockly.Workspace workspace)
{
var code = new JsArray <string>();
code.Push("Blockly.Core.Blocks[\"" + blockType + "\"] = {");
code.Push(" init: () => {");
// Generate inputs.
var TYPES = new Dictionary <string, string>()
{
{ "input_value", "appendValueInput" },
{ "input_statement", "appendStatementInput" },
{ "input_dummy", "appendDummyInput" }
};
var contentsBlock = rootBlock.getInputTargetBlock("INPUTS");
while (contentsBlock != null)
{
if (!contentsBlock.disabled && !contentsBlock.getInheritedDisabled())
{
var name = "";
// Dummy inputs don't have names. Other inputs do.
if (contentsBlock.type != "input_dummy")
{
name =
FactoryUtils.escapeString(contentsBlock.getFieldValue("INPUTNAME"));
}
code.Push(" this." + TYPES[contentsBlock.type] + "(" + name + ")");
var check = FactoryUtils.getOptTypesFrom(contentsBlock, "TYPE");
if (!String.IsNullOrEmpty(check))
{
code.Push(" .setCheck(" + check + ")");
}
var align = contentsBlock.getFieldValue("ALIGN");
if (align != "LEFT")
{
code.Push(" .setAlign(Blockly.ALIGN_" + align + ")");
}
var fields = FactoryUtils.getFieldsJs_(
contentsBlock.getInputTargetBlock("FIELDS"));
for (var i = 0; i < fields.Length; i++)
{
code.Push(" .appendField(" + fields[i] + ")");
}
// Add semicolon to last line to finish the statement.
code[code.Length - 1] += ";";
}
contentsBlock = contentsBlock.nextConnection == null ? null :
contentsBlock.nextConnection.targetBlock();
}
// Generate inline/external switch.
if (rootBlock.getFieldValue("INLINE") == "EXT")
{
code.Push(" this.setInputsInline(false);");
}
else if (rootBlock.getFieldValue("INLINE") == "INT")
{
code.Push(" this.setInputsInline(true);");
}
// Generate output, or next/previous connections.
switch (rootBlock.getFieldValue("CONNECTIONS"))
{
case "LEFT":
code.Push(FactoryUtils.connectionLineJs_("setOutput", "OUTPUTTYPE", workspace));
break;
case "BOTH":
code.Push(
FactoryUtils.connectionLineJs_("setPreviousStatement", "TOPTYPE", workspace));
code.Push(
FactoryUtils.connectionLineJs_("setNextStatement", "BOTTOMTYPE", workspace));
break;
case "TOP":
code.Push(
FactoryUtils.connectionLineJs_("setPreviousStatement", "TOPTYPE", workspace));
break;
case "BOTTOM":
code.Push(
FactoryUtils.connectionLineJs_("setNextStatement", "BOTTOMTYPE", workspace));
break;
}
// Generate colour.
var colourBlock = rootBlock.getInputTargetBlock("COLOUR");
if (colourBlock != null && !colourBlock.disabled)
{
var hue = Script.ParseFloat(colourBlock.getFieldValue("HUE"));
if (!Double.IsNaN(hue))
{
code.Push(" this.setColour(" + hue + ");");
}
}
code.Push(" this.setTooltip(\"\");");
code.Push(" this.setHelpUrl(\"http://www.example.com/\");");
code.Push(" }");
code.Push("};");
return(code.Join("\n"));
}
