/// <summary>
/// Return the generator code of each block type in an array in a given language.
/// </summary>
/// <param name="blockXmlMap"></param> Map of block type to XML.
/// <param name="generatorLanguage"> E.g. "JavaScript", "Python", "PHP", "Lua",
/// "Dart"</param>
/// <returns>The concatenation of each block's generator code in the
/// desired format.</returns>
public string getGeneratorCode(Dictionary <string, Element> blockXmlMap, string generatorLanguage)
{
var multiblockCode = new JsArray <string>();
// Define the custom blocks in order to be able to create instances of
// them in the exporter workspace.
this.addBlockDefinitions(blockXmlMap);
foreach (var blockType in blockXmlMap.Keys)
{
string blockGenCode;
var xml = blockXmlMap[blockType];
if (xml != null)
{
// Render the preview block in the hidden workspace.
var tempBlock =
FactoryUtils.getDefinedBlock(blockType, this.hiddenWorkspace);
// Get generator stub for the given block and add to generator code.
blockGenCode =
FactoryUtils.getGeneratorStub(tempBlock, generatorLanguage);
}
else
{
// Append warning comment and write to console.
blockGenCode = "// No generator stub generated for " + blockType +
". Block was not found in Block Library Storage.";
Console.WriteLine("No block generator stub generated for " + blockType +
". Block was not found in Block Library Storage.");
}
multiblockCode.Push(blockGenCode);
}
return(multiblockCode.Join("\n\n"));
}
/// <summary>
/// Return the given language code of each block type in an array.
/// </summary>
/// <param name="blockXmlMap"> Map of block type to XML.</param>
/// <param name="definitionFormat"> "JSON" or "JavaScript"</param>
/// <returns>The concatenation of each block's language code in the
/// desired format.</returns>
public string getBlockDefinitions(Dictionary <string, Element> blockXmlMap, string definitionFormat)
{
var blockCode = new JsArray <string>();
foreach (var blockType in blockXmlMap.Keys)
{
string code;
var xml = blockXmlMap[blockType];
if (xml != null)
{
// Render and get block from hidden workspace.
var rootBlock = this.getRootBlockFromXml_(xml);
if (rootBlock != null)
{
// Generate the block's definition.
code = FactoryUtils.getBlockDefinition(blockType, rootBlock,
definitionFormat, this.hiddenWorkspace);
// Add block's definition to the definitions to return.
}
else
{
// Append warning comment and write to console.
code = "// No block definition generated for " + blockType +
". Could not find root block in XML stored for this block.";
Console.WriteLine("No block definition generated for " + blockType +
". Could not find root block in XML stored for this block.");
}
}
else
{
// Append warning comment and write to console.
code = "// No block definition generated for " + blockType +
". Block was not found in Block Library Storage.";
Console.WriteLine("No block definition generated for " + blockType +
". Block was not found in Block Library Storage.");
}
blockCode.Push(code);
}
// Surround json with [] and comma separate items.
if (definitionFormat == "JSON")
{
return("[" + blockCode.Join(",\n") + "]");
}
return(blockCode.Join("\n\n"));
}
/// <summary>
/// Get this warning's texts.
/// </summary>
/// <returns>All texts concatenated into one string.</returns>
public override string getText()
{
var allWarnings = new JsArray <string>();
foreach (var id in this.text_.Keys)
{
allWarnings.Push(this.text_[id]);
}
return(allWarnings.Join("\n"));
}
private string join_(int[] ints, string dem)
{
var sb = new JsArray <string>();
foreach (int i in ints)
{
sb.Push(i.ToString());
}
return(sb.Join(dem));
}
/// <summary>
/// Generate a unique ID. This should be globally unique.
/// 87 characters ^ 20 length > 128 bits (better than a UUID).
/// </summary>
/// <returns>A globally unique ID string.</returns>
public static string genUid()
{
var length = 20;
var soupLength = Core.genUid_soup_.Length;
var id = new JsArray <string>();
for (var i = 0; i < length; i++)
{
int r = (int)(Script.Random() * soupLength);
id.Push(Core.genUid_soup_.CharAt(r));
}
return(id.Join(""));
}
/// <summary>
/// Reassemble the array of words into text, with the specified line breaks.
/// </summary>
/// <param name="words">Array of each word.</param>
/// <param name="wordBreaks">Array of line breaks.</param>
/// <returns>Plain text.</returns>
private static string wrapToText_(string[] words, bool?[] wordBreaks)
{
var text = new JsArray <string>();
for (var i = 0; i < words.Length; i++)
{
text.Push(words[i]);
if (wordBreaks[i].HasValue)
{
text.Push(wordBreaks[i].Value ? "\n" : " ");
}
}
return(text.Join(""));
}
/// <summary>
/// Tied to the "All Used" button in the Block Exporter's "Select" button.
/// Selects all blocks stored in block library and used in workspace factory.
/// </summary>
public void selectUsedBlocks()
{
// Deselect all blocks.
this.view.deselectAllBlocks();
// Get list of block types that are in block library and used in workspace
// factory.
var storedBlockTypes = this.blockLibStorage.getBlockTypes();
var sharedBlockTypes = new JsArray <string>();
// Keep list of custom block types used but not in library.
var unstoredCustomBlockTypes = new JsArray <string>();
for (var i = 0; i < this.usedBlockTypes.Length; i++)
{
var blockType = this.usedBlockTypes[i];
if (storedBlockTypes.IndexOf(blockType) != -1)
{
sharedBlockTypes.Push(blockType);
}
else if (Array.IndexOf(StandardCategories.coreBlockTypes, blockType) == -1)
{
unstoredCustomBlockTypes.Push(blockType);
}
}
// Select each shared block type.
for (var i = 0; i < sharedBlockTypes.Length; i++)
{
var blockType = sharedBlockTypes[i];
this.view.select(blockType);
}
this.view.listSelectedBlocks();
if (unstoredCustomBlockTypes.Length > 0)
{
// Warn user to import block defifnitions and generator code for blocks
// not in their Block Library nor Blockly's standard library.
var blockTypesText = unstoredCustomBlockTypes.Join(", ");
var customWarning = "Custom blocks used in workspace factory but not " +
"stored in block library:\n " + blockTypesText +
"\n\nDon\'t forget to include block definitions and generator code " +
"for these blocks.";
Window.Alert(customWarning);
}
}
/// <summary>
/// Support function for button creation.
/// </summary>
/// <param name="parentNode">Container the button should be added to.</param>
/// <param name="label">Button label.</param>
/// <param name="opt_className">Class name for button, which will be used
/// in addition to "goog-date-picker-btn".</param>
private HTMLElement createButton_(HTMLTableDataCellElement parentNode, string label,
string opt_className = null)
{
var classes = new JsArray <string>()
{
le.getCssName(this.getBaseCssClass(), "btn")
};
if (opt_className != null)
{
classes.Push(opt_className);
}
var el = this.getDomHelper().createElement(goog.dom.TagName.BUTTON);
el.ClassName = classes.Join(" ");
el.AppendChild(this.getDomHelper().createTextNode(label));
parentNode.AppendChild(el);
return(el);
}
/// <summary>
/// Redraw the graph with the current angle.
/// </summary>
public void updateGraph_()
{
if (this.gauge_ == null)
{
return;
}
var angleDegrees = Script.ParseFloat(this.getText()) + FieldAngle.OFFSET;
var angleRadians = goog.math.toRadians(angleDegrees);
var path = new JsArray <string> {
"M " + FieldAngle.HALF + "," + FieldAngle.HALF
};
double x2 = FieldAngle.HALF;
double y2 = FieldAngle.HALF;
if (!Double.IsNaN(angleRadians))
{
var angle1 = goog.math.toRadians(FieldAngle.OFFSET);
var x1 = System.Math.Cos(angle1) * FieldAngle.RADIUS;
var y1 = System.Math.Sin(angle1) * -FieldAngle.RADIUS;
if (FieldAngle.CLOCKWISE)
{
angleRadians = 2 * angle1 - angleRadians;
}
x2 += System.Math.Cos(angleRadians) * FieldAngle.RADIUS;
y2 -= System.Math.Sin(angleRadians) * FieldAngle.RADIUS;
// Don't ask how the flag calculations work. They just do.
var largeFlag = System.Math.Abs(System.Math.Floor((angleRadians - angle1) / System.Math.PI) % 2);
if (FieldAngle.CLOCKWISE)
{
largeFlag = 1 - largeFlag;
}
var sweepFlag = FieldAngle.CLOCKWISE ? 1 : 0;
path.Push(" l " + x1 + "," + y1 +
" A " + FieldAngle.RADIUS + "," + FieldAngle.RADIUS +
" 0 " + largeFlag + " " + sweepFlag + " " + x2 + "," + y2 + " z");
}
this.gauge_.SetAttribute("d", path.Join(""));
this.line_.SetAttribute("x2", x2.ToString());
this.line_.SetAttribute("y2", y2.ToString());
}
/// <summary>
/// Draw the path of the block.
/// Move the fields to the correct locations.
/// </summary>
/// <param name="iconWidth">Offset of first row due to icons.</param>
/// <param name="inputRows">2D array of objects, each
/// containing position information.</param>
private void renderDraw_(double iconWidth, InputRow inputRows)
{
this.startHat_ = false;
// Reset the height to zero and let the rendering process add in
// portions of the block height as it goes. (e.g. hats, inputs, etc.)
this.height = 0;
// Should the top and bottom left corners be rounded or square?
if (this.outputConnection != null)
{
this.squareTopLeftCorner_ = true;
this.squareBottomLeftCorner_ = true;
}
else
{
this.squareTopLeftCorner_ = false;
this.squareBottomLeftCorner_ = false;
// If this block is in the middle of a stack, square the corners.
if (this.previousConnection != null)
{
var prevBlock = this.previousConnection.targetBlock();
if (prevBlock != null && prevBlock.getNextBlock() == this)
{
this.squareTopLeftCorner_ = true;
}
}
else if (BlockSvg.START_HAT)
{
// No output or previous connection.
this.squareTopLeftCorner_ = true;
this.startHat_ = true;
this.height += BlockSvg.START_HAT_HEIGHT;
inputRows.rightEdge = System.Math.Max(inputRows.rightEdge, 100);
}
var nextBlock = this.getNextBlock();
if (nextBlock != null)
{
this.squareBottomLeftCorner_ = true;
}
}
// Assemble the block's path.
var steps = new JsArray <string>();
var inlineSteps = new JsArray <string>();
// The highlighting applies to edges facing the upper-left corner.
// Since highlighting is a two-pixel wide border, it would normally overhang
// the edge of the block by a pixel. So undersize all measurements by a pixel.
var highlightSteps = new JsArray <string>();
var highlightInlineSteps = new JsArray <string>();
this.renderDrawTop_(steps, highlightSteps, inputRows.rightEdge);
var cursorY = this.renderDrawRight_(steps, highlightSteps, inlineSteps,
highlightInlineSteps, inputRows, iconWidth);
this.renderDrawBottom_(steps, highlightSteps, cursorY);
this.renderDrawLeft_(steps, highlightSteps);
var pathString = steps.Join(" ") + "\n" + inlineSteps.Join(" ");
this.svgPath_.SetAttribute("d", pathString);
this.svgPathDark_.SetAttribute("d", pathString);
pathString = highlightSteps.Join(" ") + "\n" + highlightInlineSteps.Join(" ");
this.svgPathLight_.SetAttribute("d", pathString);
if (this.RTL)
{
// Mirror the block's path.
this.svgPath_.SetAttribute("transform", "scale(-1 1)");
this.svgPathLight_.SetAttribute("transform", "scale(-1 1)");
this.svgPathDark_.SetAttribute("transform", "translate(1,1) scale(-1 1)");
}
}
/// <summary>
/// Get the generator code for a given block.
/// </summary>
/// <param name="block"> Rendered block in preview workspace.</param>
/// <param name="generatorLanguage">"JavaScript", "Python", "PHP", "Lua",
/// "Dart".</param>
/// <returns>Generator code for multiple blocks.</returns>
public static string getGeneratorStub(Blockly.Block block, string generatorLanguage)
{
var makeVar = new Func <string, string, string>((root, name) => {
name = name.ToLowerCase().Replace(new Regex(@"\W", RegexOptions.Multiline), "_");
return(" var " + root + "_" + name);
});
// The makevar function lives in the original update generator.
var language = generatorLanguage;
var code = new JsArray <string>();
code.Push("Blockly." + language + "[\"" + block.type +
"\"] = (block) => {");
// Generate getters for any fields or inputs.
for (var i = 0; i < block.inputList.Length; i++)
{
string name;
var input = block.inputList[i];
for (var j = 0; j < input.fieldRow.Length; j++)
{
var field = input.fieldRow[j];
name = field.name;
if (String.IsNullOrEmpty(name))
{
continue;
}
if (typeof(Blockly.FieldVariable).IsInstanceOfType(field))
{
// Subclass of Blockly.FieldDropdown, must test first.
code.Push(makeVar("variable", name) +
" = Blockly." + language +
".variableDB_.getName(block.getFieldValue(\"" + name +
"\"), Blockly.Variables.NAME_TYPE);");
}
else if (typeof(Blockly.FieldAngle).IsInstanceOfType(field))
{
// Subclass of Blockly.FieldTextInput, must test first.
code.Push(makeVar("angle", name) +
" = block.getFieldValue(\"" + name + "\");");
}
else if (typeof(Blockly.FieldDate).IsInstanceOfType(field))
{
// Blockly.FieldDate may not be compiled into Blockly.
code.Push(makeVar("date", name) +
" = block.getFieldValue(\"" + name + "\");");
}
else if (typeof(Blockly.FieldColour).IsInstanceOfType(field))
{
code.Push(makeVar("colour", name) +
" = block.getFieldValue(\"" + name + "\");");
}
else if (typeof(Blockly.FieldCheckbox).IsInstanceOfType(field))
{
code.Push(makeVar("checkbox", name) +
" = block.getFieldValue(\"" + name + "\") == \"TRUE\";");
}
else if (typeof(Blockly.FieldDropdown).IsInstanceOfType(field))
{
code.Push(makeVar("dropdown", name) +
" = block.getFieldValue(\"" + name + "\");");
}
else if (typeof(Blockly.FieldNumber).IsInstanceOfType(field))
{
code.Push(makeVar("number", name) +
" = block.getFieldValue(\"" + name + "\");");
}
else if (typeof(Blockly.FieldTextInput).IsInstanceOfType(field))
{
code.Push(makeVar("text", name) +
" = block.getFieldValue(\"" + name + "\");");
}
}
name = input.name;
if (!String.IsNullOrEmpty(name))
{
if (input.type == Blockly.Core.INPUT_VALUE)
{
code.Push(makeVar("value", name) +
" = Blockly." + language + ".valueToCode(block, \"" + name +
"\", Blockly." + language + ".ORDER_ATOMIC);");
}
else if (input.type == Blockly.Core.NEXT_STATEMENT)
{
code.Push(makeVar("statements", name) +
" = Blockly." + language + ".statementToCode(block, \"" +
name + "\");");
}
}
}
// Most languages end lines with a semicolon. Python does not.
var lineEnd = new Dictionary <string, string> {
{ "JavaScript", ";" },
{ "Python", "" },
{ "PHP", ";" },
{ "Dart", ";" }
};
code.Push(" // TODO: Assemble " + language + " into code variable.");
if (block.outputConnection != null)
{
code.Push(" var code = \"...\";");
code.Push(" // TODO: Change ORDER_NONE to the correct strength.");
code.Push(" return [code, Blockly." + language + ".ORDER_NONE];");
}
else
{
code.Push(" var code = \"...\" + (lineEnd[language] || \"\") + \"\\n\";");
code.Push(" return code;");
}
code.Push("};");
return(code.Join("\n"));
}
/// <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"));
}
/// <summary>
/// Update the language code as JSON.
/// </summary>
/// <param name="blockType"> Name of block.</param>
/// <param name="rootBlock">Factory_base block.</param>
/// <returns>Generanted language code.</returns>
private static string formatJson_(string blockType, Blockly.Block rootBlock)
{
var JS = new Dictionary <string, object>();
// Type is not used by Blockly, but may be used by a loader.
JS["type"] = blockType;
// Generate inputs.
var message = new JsArray <string>();
var args = new JsArray <object>();
var contentsBlock = rootBlock.getInputTargetBlock("INPUTS");
Blockly.Block lastInput = null;
while (contentsBlock != null)
{
if (!contentsBlock.disabled && !contentsBlock.getInheritedDisabled())
{
var fields = FactoryUtils.getFieldsJson_(
contentsBlock.getInputTargetBlock("FIELDS"));
for (var i = 0; i < fields.Length; i++)
{
if (fields[i] is string str)
{
message.Push(str.Replace(new Regex("%", RegexOptions.Multiline), "%%"));
}
else
{
args.Push(fields[i]);
message.Push("%" + args.Length);
}
}
var input = new Dictionary <string, object>();
input.Add("type", contentsBlock.type);
// Dummy inputs don't have names. Other inputs do.
if (contentsBlock.type != "input_dummy")
{
input["name"] = contentsBlock.getFieldValue("INPUTNAME");
}
var check = JSON.Parse(
FactoryUtils.getOptTypesFrom(contentsBlock, "TYPE") ?? "null");
if (check != null)
{
input["check"] = check;
}
var align = contentsBlock.getFieldValue("ALIGN");
if (align != "LEFT")
{
input["align"] = align;
}
args.Push(input);
message.Push("%" + args.Length);
lastInput = contentsBlock;
}
contentsBlock = contentsBlock.nextConnection == null ? null :
contentsBlock.nextConnection.targetBlock();
}
// Remove last input if dummy and not empty.
if (lastInput != null && lastInput.type == "input_dummy")
{
var fields = lastInput.getInputTargetBlock("FIELDS");
if (fields != null && FactoryUtils.getFieldsJson_(fields).Join("").Trim() != "")
{
var align = lastInput.getFieldValue("ALIGN");
if (align != "LEFT")
{
JS["lastDummyAlign0"] = align;
}
args.Pop();
message.Pop();
}
}
JS["message0"] = message.Join(" ");
if (args.Length > 0)
{
JS["args0"] = args;
}
// Generate inline/external switch.
if (rootBlock.getFieldValue("INLINE") == "EXT")
{
JS["inputsInline"] = false;
}
else if (rootBlock.getFieldValue("INLINE") == "INT")
{
JS["inputsInline"] = true;
}
// Generate output, or next/previous connections.
switch (rootBlock.getFieldValue("CONNECTIONS"))
{
case "LEFT":
JS["output"] =
JSON.Parse(
FactoryUtils.getOptTypesFrom(rootBlock, "OUTPUTTYPE") ?? "null");
break;
case "BOTH":
JS["previousStatement"] =
JSON.Parse(
FactoryUtils.getOptTypesFrom(rootBlock, "TOPTYPE") ?? "null");
JS["nextStatement"] =
JSON.Parse(
FactoryUtils.getOptTypesFrom(rootBlock, "BOTTOMTYPE") ?? "null");
break;
case "TOP":
JS["previousStatement"] =
JSON.Parse(
FactoryUtils.getOptTypesFrom(rootBlock, "TOPTYPE") ?? "null");
break;
case "BOTTOM":
JS["nextStatement"] =
JSON.Parse(
FactoryUtils.getOptTypesFrom(rootBlock, "BOTTOMTYPE") ?? "null");
break;
}
// Generate colour.
var colourBlock = rootBlock.getInputTargetBlock("COLOUR");
if (colourBlock != null && !colourBlock.disabled)
{
var hue = Script.ParseFloat(colourBlock.getFieldValue("HUE"));
JS["colour"] = hue;
}
JS["tooltip"] = "";
JS["helpUrl"] = "http://www.example.com/";
return(JSON.Stringify(JS, null, " "));
}
/// <summary>
/// Draw the arrow between the bubble and the origin.
/// </summary>
private void renderArrow_()
{
var steps = new JsArray <string>();
// Find the relative coordinates of the center of the bubble.
var relBubbleX = this.width_ / 2;
var relBubbleY = this.height_ / 2;
// Find the relative coordinates of the center of the anchor.
var relAnchorX = -this.relativeLeft_;
var relAnchorY = -this.relativeTop_;
if (relBubbleX == relAnchorX && relBubbleY == relAnchorY)
{
// Null case. Bubble is directly on top of the anchor.
// Short circuit this rather than wade through divide by zeros.
steps.Push("M " + relBubbleX + "," + relBubbleY);
}
else
{
// Compute the angle of the arrow's line.
var rise = relAnchorY - relBubbleY;
var run = relAnchorX - relBubbleX;
if (this.workspace_.RTL)
{
run *= -1;
}
var hypotenuse = System.Math.Sqrt(rise * rise + run * run);
var angle = System.Math.Acos(run / hypotenuse);
if (rise < 0)
{
angle = 2 * System.Math.PI - angle;
}
// Compute a line perpendicular to the arrow.
var rightAngle = angle + System.Math.PI / 2;
if (rightAngle > System.Math.PI * 2)
{
rightAngle -= System.Math.PI * 2;
}
var rightRise = System.Math.Sin(rightAngle);
var rightRun = System.Math.Cos(rightAngle);
// Calculate the thickness of the base of the arrow.
var bubbleSize = this.getBubbleSize();
var thickness = (bubbleSize.width + bubbleSize.height) /
Bubble.ARROW_THICKNESS;
thickness = System.Math.Min(thickness, System.Math.Min(bubbleSize.width, bubbleSize.height)) / 4;
// Back the tip of the arrow off of the anchor.
var backoffRatio = 1 - Bubble.ANCHOR_RADIUS / hypotenuse;
relAnchorX = relBubbleX + backoffRatio * run;
relAnchorY = relBubbleY + backoffRatio * rise;
// Coordinates for the base of the arrow.
var baseX1 = relBubbleX + thickness * rightRun;
var baseY1 = relBubbleY + thickness * rightRise;
var baseX2 = relBubbleX - thickness * rightRun;
var baseY2 = relBubbleY - thickness * rightRise;
// Distortion to curve the arrow.
var swirlAngle = angle + this.arrow_radians_;
if (swirlAngle > System.Math.PI * 2)
{
swirlAngle -= System.Math.PI * 2;
}
var swirlRise = System.Math.Sin(swirlAngle) *
hypotenuse / Bubble.ARROW_BEND;
var swirlRun = System.Math.Cos(swirlAngle) *
hypotenuse / Bubble.ARROW_BEND;
steps.Push("M" + baseX1 + "," + baseY1);
steps.Push("C" + (baseX1 + swirlRun) + "," + (baseY1 + swirlRise) +
" " + relAnchorX + "," + relAnchorY +
" " + relAnchorX + "," + relAnchorY);
steps.Push("C" + relAnchorX + "," + relAnchorY +
" " + (baseX2 + swirlRun) + "," + (baseY2 + swirlRise) +
" " + baseX2 + "," + baseY2);
}
steps.Push("z");
this.bubbleArrow_.SetAttribute("d", steps.Join(" "));
}