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b46a4fe286
* Google changed from an Inc to an LLC. This happened back in 2017 but we didn’t notice. Officially we should update files from Inc to LLC when they are changed as part of regular edits, but this is a nightmare to remember for the next decade. * Remove project description/titles from licenses This is no longer part of Google’s header requirements. Our existing descriptions were useless (“Visual Blocks Editor”) or grossly obselete (“Visual Blocks Language”). * License no longer requires URL. * Fix license regexps.
1126 lines
40 KiB
JavaScript
1126 lines
40 KiB
JavaScript
/**
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* @license
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* Copyright 2012 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Procedure blocks for Blockly.
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* @author fraser@google.com (Neil Fraser)
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*/
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'use strict';
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goog.provide('Blockly.Blocks.procedures');
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goog.require('Blockly');
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goog.require('Blockly.Blocks');
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goog.require('Blockly.Comment');
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goog.require('Blockly.FieldCheckbox');
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goog.require('Blockly.FieldLabel');
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goog.require('Blockly.FieldTextInput');
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goog.require('Blockly.Mutator');
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Blockly.Blocks['procedures_defnoreturn'] = {
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/**
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* Block for defining a procedure with no return value.
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* @this {Blockly.Block}
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*/
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init: function() {
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var nameField = new Blockly.FieldTextInput('',
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Blockly.Procedures.rename);
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nameField.setSpellcheck(false);
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this.appendDummyInput()
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.appendField(Blockly.Msg['PROCEDURES_DEFNORETURN_TITLE'])
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.appendField(nameField, 'NAME')
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.appendField('', 'PARAMS');
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this.setMutator(new Blockly.Mutator(['procedures_mutatorarg']));
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if ((this.workspace.options.comments ||
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(this.workspace.options.parentWorkspace &&
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this.workspace.options.parentWorkspace.options.comments)) &&
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Blockly.Msg['PROCEDURES_DEFNORETURN_COMMENT']) {
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this.setCommentText(Blockly.Msg['PROCEDURES_DEFNORETURN_COMMENT']);
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}
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this.setStyle('procedure_blocks');
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this.setTooltip(Blockly.Msg['PROCEDURES_DEFNORETURN_TOOLTIP']);
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this.setHelpUrl(Blockly.Msg['PROCEDURES_DEFNORETURN_HELPURL']);
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this.arguments_ = [];
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this.argumentVarModels_ = [];
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this.setStatements_(true);
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this.statementConnection_ = null;
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},
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/**
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* Add or remove the statement block from this function definition.
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* @param {boolean} hasStatements True if a statement block is needed.
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* @this {Blockly.Block}
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*/
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setStatements_: function(hasStatements) {
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if (this.hasStatements_ === hasStatements) {
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return;
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}
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if (hasStatements) {
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this.appendStatementInput('STACK')
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.appendField(Blockly.Msg['PROCEDURES_DEFNORETURN_DO']);
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if (this.getInput('RETURN')) {
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this.moveInputBefore('STACK', 'RETURN');
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}
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} else {
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this.removeInput('STACK', true);
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}
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this.hasStatements_ = hasStatements;
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},
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/**
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* Update the display of parameters for this procedure definition block.
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* @private
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* @this {Blockly.Block}
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*/
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updateParams_: function() {
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// Merge the arguments into a human-readable list.
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var paramString = '';
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if (this.arguments_.length) {
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paramString = Blockly.Msg['PROCEDURES_BEFORE_PARAMS'] +
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' ' + this.arguments_.join(', ');
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}
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// The params field is deterministic based on the mutation,
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// no need to fire a change event.
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Blockly.Events.disable();
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try {
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this.setFieldValue(paramString, 'PARAMS');
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} finally {
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Blockly.Events.enable();
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}
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},
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/**
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* Create XML to represent the argument inputs.
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* @param {boolean=} opt_paramIds If true include the IDs of the parameter
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* quarks. Used by Blockly.Procedures.mutateCallers for reconnection.
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* @return {!Element} XML storage element.
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* @this {Blockly.Block}
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*/
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mutationToDom: function(opt_paramIds) {
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var container = Blockly.utils.xml.createElement('mutation');
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if (opt_paramIds) {
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container.setAttribute('name', this.getFieldValue('NAME'));
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}
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for (var i = 0; i < this.argumentVarModels_.length; i++) {
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var parameter = Blockly.utils.xml.createElement('arg');
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var argModel = this.argumentVarModels_[i];
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parameter.setAttribute('name', argModel.name);
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parameter.setAttribute('varid', argModel.getId());
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if (opt_paramIds && this.paramIds_) {
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parameter.setAttribute('paramId', this.paramIds_[i]);
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}
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container.appendChild(parameter);
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}
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// Save whether the statement input is visible.
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if (!this.hasStatements_) {
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container.setAttribute('statements', 'false');
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}
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return container;
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},
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/**
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* Parse XML to restore the argument inputs.
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* @param {!Element} xmlElement XML storage element.
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* @this {Blockly.Block}
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*/
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domToMutation: function(xmlElement) {
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this.arguments_ = [];
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this.argumentVarModels_ = [];
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for (var i = 0, childNode; childNode = xmlElement.childNodes[i]; i++) {
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if (childNode.nodeName.toLowerCase() == 'arg') {
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var varName = childNode.getAttribute('name');
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var varId = childNode.getAttribute('varid') || childNode.getAttribute('varId');
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this.arguments_.push(varName);
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var variable = Blockly.Variables.getOrCreateVariablePackage(
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this.workspace, varId, varName, '');
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if (variable != null) {
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this.argumentVarModels_.push(variable);
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} else {
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console.log('Failed to create a variable with name ' + varName + ', ignoring.');
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}
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}
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}
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this.updateParams_();
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Blockly.Procedures.mutateCallers(this);
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// Show or hide the statement input.
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this.setStatements_(xmlElement.getAttribute('statements') !== 'false');
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},
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/**
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* Populate the mutator's dialog with this block's components.
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* @param {!Blockly.Workspace} workspace Mutator's workspace.
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* @return {!Blockly.Block} Root block in mutator.
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* @this {Blockly.Block}
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*/
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decompose: function(workspace) {
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/*
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* Creates the following XML:
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* <block type="procedures_mutatorcontainer">
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* <statement name="STACK">
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* <block type="procedures_mutatorarg">
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* <field name="NAME">arg1_name</field>
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* <next>etc...</next>
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* </block>
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* </statement>
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* </block>
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*/
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var containerBlockNode = Blockly.utils.xml.createElement('block');
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containerBlockNode.setAttribute('type', 'procedures_mutatorcontainer');
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var statementNode = Blockly.utils.xml.createElement('statement');
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statementNode.setAttribute('name', 'STACK');
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containerBlockNode.appendChild(statementNode);
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var node = statementNode;
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for (var i = 0; i < this.arguments_.length; i++) {
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var argBlockNode = Blockly.utils.xml.createElement('block');
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argBlockNode.setAttribute('type', 'procedures_mutatorarg');
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var fieldNode = Blockly.utils.xml.createElement('field');
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fieldNode.setAttribute('name', 'NAME');
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var argumentName = Blockly.utils.xml.createTextNode(this.arguments_[i]);
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fieldNode.appendChild(argumentName);
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argBlockNode.appendChild(fieldNode);
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var nextNode = Blockly.utils.xml.createElement('next');
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argBlockNode.appendChild(nextNode);
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node.appendChild(argBlockNode);
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node = nextNode;
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}
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var containerBlock = Blockly.Xml.domToBlock(containerBlockNode, workspace);
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if (this.type == 'procedures_defreturn') {
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containerBlock.setFieldValue(this.hasStatements_, 'STATEMENTS');
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} else {
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containerBlock.removeInput('STATEMENT_INPUT');
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}
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// Initialize procedure's callers with blank IDs.
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Blockly.Procedures.mutateCallers(this);
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return containerBlock;
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},
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/**
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* Reconfigure this block based on the mutator dialog's components.
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* @param {!Blockly.Block} containerBlock Root block in mutator.
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* @this {Blockly.Block}
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*/
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compose: function(containerBlock) {
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// Parameter list.
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this.arguments_ = [];
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this.paramIds_ = [];
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this.argumentVarModels_ = [];
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var paramBlock = containerBlock.getInputTargetBlock('STACK');
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while (paramBlock) {
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var varName = paramBlock.getFieldValue('NAME');
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this.arguments_.push(varName);
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var variable = this.workspace.getVariable(varName, '');
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this.argumentVarModels_.push(variable);
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this.paramIds_.push(paramBlock.id);
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paramBlock = paramBlock.nextConnection &&
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paramBlock.nextConnection.targetBlock();
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}
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this.updateParams_();
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Blockly.Procedures.mutateCallers(this);
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// Show/hide the statement input.
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var hasStatements = containerBlock.getFieldValue('STATEMENTS');
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if (hasStatements !== null) {
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hasStatements = hasStatements == 'TRUE';
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if (this.hasStatements_ != hasStatements) {
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if (hasStatements) {
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this.setStatements_(true);
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// Restore the stack, if one was saved.
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Blockly.Mutator.reconnect(this.statementConnection_, this, 'STACK');
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this.statementConnection_ = null;
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} else {
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// Save the stack, then disconnect it.
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var stackConnection = this.getInput('STACK').connection;
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this.statementConnection_ = stackConnection.targetConnection;
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if (this.statementConnection_) {
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var stackBlock = stackConnection.targetBlock();
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stackBlock.unplug();
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stackBlock.bumpNeighbours_();
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}
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this.setStatements_(false);
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}
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}
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}
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},
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/**
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* Return the signature of this procedure definition.
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* @return {!Array} Tuple containing three elements:
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* - the name of the defined procedure,
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* - a list of all its arguments,
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* - that it DOES NOT have a return value.
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* @this {Blockly.Block}
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*/
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getProcedureDef: function() {
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return [this.getFieldValue('NAME'), this.arguments_, false];
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},
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/**
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* Return all variables referenced by this block.
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* @return {!Array.<string>} List of variable names.
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* @this {Blockly.Block}
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*/
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getVars: function() {
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return this.arguments_;
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},
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/**
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* Return all variables referenced by this block.
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* @return {!Array.<!Blockly.VariableModel>} List of variable models.
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* @this {Blockly.Block}
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*/
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getVarModels: function() {
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return this.argumentVarModels_;
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},
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/**
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* Notification that a variable is renaming.
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* If the ID matches one of this block's variables, rename it.
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* @param {string} oldId ID of variable to rename.
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* @param {string} newId ID of new variable. May be the same as oldId, but
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* with an updated name. Guaranteed to be the same type as the old
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* variable.
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* @override
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* @this {Blockly.Block}
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*/
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renameVarById: function(oldId, newId) {
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var oldVariable = this.workspace.getVariableById(oldId);
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if (oldVariable.type != '') {
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// Procedure arguments always have the empty type.
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return;
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}
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var oldName = oldVariable.name;
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var newVar = this.workspace.getVariableById(newId);
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var change = false;
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for (var i = 0; i < this.argumentVarModels_.length; i++) {
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if (this.argumentVarModels_[i].getId() == oldId) {
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this.arguments_[i] = newVar.name;
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this.argumentVarModels_[i] = newVar;
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change = true;
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}
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}
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if (change) {
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this.displayRenamedVar_(oldName, newVar.name);
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Blockly.Procedures.mutateCallers(this);
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}
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},
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/**
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* Notification that a variable is renaming but keeping the same ID. If the
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* variable is in use on this block, rerender to show the new name.
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* @param {!Blockly.VariableModel} variable The variable being renamed.
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* @package
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* @override
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* @this {Blockly.Block}
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*/
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updateVarName: function(variable) {
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var newName = variable.name;
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var change = false;
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for (var i = 0; i < this.argumentVarModels_.length; i++) {
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if (this.argumentVarModels_[i].getId() == variable.getId()) {
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var oldName = this.arguments_[i];
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this.arguments_[i] = newName;
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change = true;
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}
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}
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if (change) {
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this.displayRenamedVar_(oldName, newName);
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Blockly.Procedures.mutateCallers(this);
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}
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},
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/**
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* Update the display to reflect a newly renamed argument.
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* @param {string} oldName The old display name of the argument.
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* @param {string} newName The new display name of the argument.
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* @private
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* @this {Blockly.Block}
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*/
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displayRenamedVar_: function(oldName, newName) {
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this.updateParams_();
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// Update the mutator's variables if the mutator is open.
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if (this.mutator && this.mutator.isVisible()) {
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var blocks = this.mutator.workspace_.getAllBlocks(false);
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for (var i = 0, block; block = blocks[i]; i++) {
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if (block.type == 'procedures_mutatorarg' &&
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Blockly.Names.equals(oldName, block.getFieldValue('NAME'))) {
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block.setFieldValue(newName, 'NAME');
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}
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}
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}
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},
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/**
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* Add custom menu options to this block's context menu.
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* @param {!Array} options List of menu options to add to.
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* @this {Blockly.Block}
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*/
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customContextMenu: function(options) {
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if (this.isInFlyout) {
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return;
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}
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// Add option to create caller.
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var option = {enabled: true};
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var name = this.getFieldValue('NAME');
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option.text = Blockly.Msg['PROCEDURES_CREATE_DO'].replace('%1', name);
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var xmlMutation = Blockly.utils.xml.createElement('mutation');
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xmlMutation.setAttribute('name', name);
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for (var i = 0; i < this.arguments_.length; i++) {
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var xmlArg = Blockly.utils.xml.createElement('arg');
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xmlArg.setAttribute('name', this.arguments_[i]);
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xmlMutation.appendChild(xmlArg);
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}
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var xmlBlock = Blockly.utils.xml.createElement('block');
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xmlBlock.setAttribute('type', this.callType_);
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xmlBlock.appendChild(xmlMutation);
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option.callback = Blockly.ContextMenu.callbackFactory(this, xmlBlock);
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options.push(option);
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// Add options to create getters for each parameter.
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if (!this.isCollapsed()) {
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for (var i = 0; i < this.argumentVarModels_.length; i++) {
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var argOption = {enabled: true};
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var argVar = this.argumentVarModels_[i];
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argOption.text = Blockly.Msg['VARIABLES_SET_CREATE_GET']
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.replace('%1', argVar.name);
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var argXmlField = Blockly.Variables.generateVariableFieldDom(argVar);
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var argXmlBlock = Blockly.utils.xml.createElement('block');
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argXmlBlock.setAttribute('type', 'variables_get');
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argXmlBlock.appendChild(argXmlField);
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argOption.callback =
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Blockly.ContextMenu.callbackFactory(this, argXmlBlock);
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options.push(argOption);
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}
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}
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},
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callType_: 'procedures_callnoreturn'
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};
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Blockly.Blocks['procedures_defreturn'] = {
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/**
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* Block for defining a procedure with a return value.
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* @this {Blockly.Block}
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*/
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init: function() {
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var nameField = new Blockly.FieldTextInput('',
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Blockly.Procedures.rename);
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nameField.setSpellcheck(false);
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this.appendDummyInput()
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.appendField(Blockly.Msg['PROCEDURES_DEFRETURN_TITLE'])
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.appendField(nameField, 'NAME')
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.appendField('', 'PARAMS');
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this.appendValueInput('RETURN')
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.setAlign(Blockly.ALIGN_RIGHT)
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.appendField(Blockly.Msg['PROCEDURES_DEFRETURN_RETURN']);
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this.setMutator(new Blockly.Mutator(['procedures_mutatorarg']));
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if ((this.workspace.options.comments ||
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(this.workspace.options.parentWorkspace &&
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this.workspace.options.parentWorkspace.options.comments)) &&
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Blockly.Msg['PROCEDURES_DEFRETURN_COMMENT']) {
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this.setCommentText(Blockly.Msg['PROCEDURES_DEFRETURN_COMMENT']);
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}
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this.setStyle('procedure_blocks');
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this.setTooltip(Blockly.Msg['PROCEDURES_DEFRETURN_TOOLTIP']);
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this.setHelpUrl(Blockly.Msg['PROCEDURES_DEFRETURN_HELPURL']);
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this.arguments_ = [];
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this.argumentVarModels_ = [];
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this.setStatements_(true);
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this.statementConnection_ = null;
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},
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setStatements_: Blockly.Blocks['procedures_defnoreturn'].setStatements_,
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updateParams_: Blockly.Blocks['procedures_defnoreturn'].updateParams_,
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mutationToDom: Blockly.Blocks['procedures_defnoreturn'].mutationToDom,
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domToMutation: Blockly.Blocks['procedures_defnoreturn'].domToMutation,
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decompose: Blockly.Blocks['procedures_defnoreturn'].decompose,
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compose: Blockly.Blocks['procedures_defnoreturn'].compose,
|
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/**
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* Return the signature of this procedure definition.
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|
* @return {!Array} Tuple containing three elements:
|
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* - the name of the defined procedure,
|
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* - a list of all its arguments,
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* - that it DOES have a return value.
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* @this {Blockly.Block}
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*/
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getProcedureDef: function() {
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return [this.getFieldValue('NAME'), this.arguments_, true];
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},
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getVars: Blockly.Blocks['procedures_defnoreturn'].getVars,
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getVarModels: Blockly.Blocks['procedures_defnoreturn'].getVarModels,
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renameVarById: Blockly.Blocks['procedures_defnoreturn'].renameVarById,
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updateVarName: Blockly.Blocks['procedures_defnoreturn'].updateVarName,
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displayRenamedVar_: Blockly.Blocks['procedures_defnoreturn'].displayRenamedVar_,
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customContextMenu: Blockly.Blocks['procedures_defnoreturn'].customContextMenu,
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callType_: 'procedures_callreturn'
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};
|
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|
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Blockly.Blocks['procedures_mutatorcontainer'] = {
|
|
/**
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* Mutator block for procedure container.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
init: function() {
|
|
this.appendDummyInput()
|
|
.appendField(Blockly.Msg['PROCEDURES_MUTATORCONTAINER_TITLE']);
|
|
this.appendStatementInput('STACK');
|
|
this.appendDummyInput('STATEMENT_INPUT')
|
|
.appendField(Blockly.Msg['PROCEDURES_ALLOW_STATEMENTS'])
|
|
.appendField(new Blockly.FieldCheckbox('TRUE'), 'STATEMENTS');
|
|
this.setStyle('procedure_blocks');
|
|
this.setTooltip(Blockly.Msg['PROCEDURES_MUTATORCONTAINER_TOOLTIP']);
|
|
this.contextMenu = false;
|
|
},
|
|
|
|
// TODO: Move this to a validator on the arg blocks, that way it can be
|
|
// tested.
|
|
/**
|
|
* This will create & delete variables and in dialogs workspace to ensure
|
|
* that when a new block is dragged out it will have a unique parameter name.
|
|
* @param {!Blockly.Events.Abstract} event Change event.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
onchange: function(event) {
|
|
if (!this.workspace || this.workspace.isFlyout ||
|
|
(event.type != Blockly.Events.BLOCK_DELETE && event.type != Blockly.Events.BLOCK_CREATE)) {
|
|
return;
|
|
}
|
|
var blocks = this.workspace.getAllBlocks();
|
|
var allVariables = this.workspace.getAllVariables();
|
|
if (event.type == Blockly.Events.BLOCK_DELETE) {
|
|
var variableNamesToKeep = [];
|
|
for (var i = 0; i < blocks.length; i += 1) {
|
|
if (blocks[i].getFieldValue('NAME')) {
|
|
variableNamesToKeep.push(blocks[i].getFieldValue('NAME'));
|
|
}
|
|
}
|
|
for (var k = 0; k < allVariables.length; k += 1) {
|
|
if (variableNamesToKeep.indexOf(allVariables[k].name) == -1) {
|
|
this.workspace.deleteVariableById(allVariables[k].getId());
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (event.type != Blockly.Events.BLOCK_CREATE) {
|
|
return;
|
|
}
|
|
|
|
var block = this.workspace.getBlockById(event.blockId);
|
|
// This is to handle the one none variable block
|
|
// Happens when all the blocks are regenerated
|
|
if (!block.getField('NAME')) {
|
|
return;
|
|
}
|
|
var varName = block.getFieldValue('NAME');
|
|
var variable = this.workspace.getVariable(varName);
|
|
|
|
if (!variable) {
|
|
// This means the parameter name is not in use and we can create the variable.
|
|
variable = this.workspace.createVariable(varName);
|
|
}
|
|
// If the blocks are connected we don't have to check duplicate variables
|
|
// This only happens if the dialog box is open
|
|
if (block.previousConnection.isConnected() || block.nextConnection.isConnected()) {
|
|
return;
|
|
}
|
|
|
|
for (var j = 0; j < blocks.length; j += 1) {
|
|
// filter block that was created
|
|
if (block.id != blocks[j].id && blocks[j].getFieldValue('NAME') == variable.name) {
|
|
// generate new name and set name field
|
|
varName = Blockly.Variables.generateUniqueName(this.workspace);
|
|
variable = this.workspace.createVariable(varName);
|
|
block.setFieldValue(variable.name, 'NAME');
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
Blockly.Blocks['procedures_mutatorarg'] = {
|
|
/**
|
|
* Mutator block for procedure argument.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
init: function() {
|
|
var field = new Blockly.FieldTextInput('x', this.validator_);
|
|
// Hack: override showEditor to do just a little bit more work.
|
|
// We don't have a good place to hook into the start of a text edit.
|
|
field.oldShowEditorFn_ = field.showEditor_;
|
|
var newShowEditorFn = function() {
|
|
this.createdVariables_ = [];
|
|
this.oldShowEditorFn_();
|
|
};
|
|
field.showEditor_ = newShowEditorFn;
|
|
|
|
this.appendDummyInput()
|
|
.appendField(Blockly.Msg['PROCEDURES_MUTATORARG_TITLE'])
|
|
.appendField(field, 'NAME');
|
|
this.setPreviousStatement(true);
|
|
this.setNextStatement(true);
|
|
this.setStyle('procedure_blocks');
|
|
this.setTooltip(Blockly.Msg['PROCEDURES_MUTATORARG_TOOLTIP']);
|
|
this.contextMenu = false;
|
|
|
|
// Create the default variable when we drag the block in from the flyout.
|
|
// Have to do this after installing the field on the block.
|
|
field.onFinishEditing_ = this.deleteIntermediateVars_;
|
|
// Create an empty list so onFinishEditing_ has something to look at, even
|
|
// though the editor was never opened.
|
|
field.createdVariables_ = [];
|
|
field.onFinishEditing_('x');
|
|
},
|
|
|
|
/**
|
|
* Obtain a valid name for the procedure argument. Create a variable if
|
|
* necessary.
|
|
* Merge runs of whitespace. Strip leading and trailing whitespace.
|
|
* Beyond this, all names are legal.
|
|
* @param {string} varName User-supplied name.
|
|
* @return {?string} Valid name, or null if a name was not specified.
|
|
* @private
|
|
* @this Blockly.FieldTextInput
|
|
*/
|
|
validator_: function(varName) {
|
|
var sourceBlock = this.getSourceBlock();
|
|
var outerWs = Blockly.Mutator.findParentWs(sourceBlock.workspace);
|
|
varName = varName.replace(/[\s\xa0]+/g, ' ').replace(/^ | $/g, '');
|
|
if (!varName) {
|
|
return null;
|
|
}
|
|
|
|
// Prevents duplicate parameter names in functions
|
|
var blocks = sourceBlock.workspace.getAllBlocks();
|
|
for (var i = 0; i < blocks.length; i++) {
|
|
if (blocks[i].id == this.getSourceBlock().id) {
|
|
continue;
|
|
}
|
|
if (blocks[i].getFieldValue('NAME') == varName) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
var model = outerWs.getVariable(varName, '');
|
|
if (model && model.name != varName) {
|
|
// Rename the variable (case change)
|
|
outerWs.renameVariableById(model.getId(), varName);
|
|
}
|
|
if (!model) {
|
|
model = outerWs.createVariable(varName, '');
|
|
if (model && this.createdVariables_) {
|
|
this.createdVariables_.push(model);
|
|
}
|
|
}
|
|
return varName;
|
|
},
|
|
/**
|
|
* Called when focusing away from the text field.
|
|
* Deletes all variables that were created as the user typed their intended
|
|
* variable name.
|
|
* @param {string} newText The new variable name.
|
|
* @private
|
|
* @this Blockly.FieldTextInput
|
|
*/
|
|
deleteIntermediateVars_: function(newText) {
|
|
var outerWs = Blockly.Mutator.findParentWs(this.getSourceBlock().workspace);
|
|
if (!outerWs) {
|
|
return;
|
|
}
|
|
for (var i = 0; i < this.createdVariables_.length; i++) {
|
|
var model = this.createdVariables_[i];
|
|
if (model.name != newText) {
|
|
outerWs.deleteVariableById(model.getId());
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
Blockly.Blocks['procedures_callnoreturn'] = {
|
|
/**
|
|
* Block for calling a procedure with no return value.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
init: function() {
|
|
this.appendDummyInput('TOPROW')
|
|
.appendField(this.id, 'NAME');
|
|
this.setPreviousStatement(true);
|
|
this.setNextStatement(true);
|
|
this.setStyle('procedure_blocks');
|
|
// Tooltip is set in renameProcedure.
|
|
this.setHelpUrl(Blockly.Msg['PROCEDURES_CALLNORETURN_HELPURL']);
|
|
this.arguments_ = [];
|
|
this.argumentVarModels_ = [];
|
|
this.quarkConnections_ = {};
|
|
this.quarkIds_ = null;
|
|
this.previousEnabledState_ = true;
|
|
},
|
|
|
|
/**
|
|
* Returns the name of the procedure this block calls.
|
|
* @return {string} Procedure name.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
getProcedureCall: function() {
|
|
// The NAME field is guaranteed to exist, null will never be returned.
|
|
return /** @type {string} */ (this.getFieldValue('NAME'));
|
|
},
|
|
/**
|
|
* Notification that a procedure is renaming.
|
|
* If the name matches this block's procedure, rename it.
|
|
* @param {string} oldName Previous name of procedure.
|
|
* @param {string} newName Renamed procedure.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
renameProcedure: function(oldName, newName) {
|
|
if (Blockly.Names.equals(oldName, this.getProcedureCall())) {
|
|
this.setFieldValue(newName, 'NAME');
|
|
var baseMsg = this.outputConnection ?
|
|
Blockly.Msg['PROCEDURES_CALLRETURN_TOOLTIP'] :
|
|
Blockly.Msg['PROCEDURES_CALLNORETURN_TOOLTIP'];
|
|
this.setTooltip(baseMsg.replace('%1', newName));
|
|
}
|
|
},
|
|
/**
|
|
* Notification that the procedure's parameters have changed.
|
|
* @param {!Array.<string>} paramNames New param names, e.g. ['x', 'y', 'z'].
|
|
* @param {!Array.<string>} paramIds IDs of params (consistent for each
|
|
* parameter through the life of a mutator, regardless of param renaming),
|
|
* e.g. ['piua', 'f8b_', 'oi.o'].
|
|
* @private
|
|
* @this {Blockly.Block}
|
|
*/
|
|
setProcedureParameters_: function(paramNames, paramIds) {
|
|
// Data structures:
|
|
// this.arguments = ['x', 'y']
|
|
// Existing param names.
|
|
// this.quarkConnections_ {piua: null, f8b_: Blockly.Connection}
|
|
// Look-up of paramIds to connections plugged into the call block.
|
|
// this.quarkIds_ = ['piua', 'f8b_']
|
|
// Existing param IDs.
|
|
// Note that quarkConnections_ may include IDs that no longer exist, but
|
|
// which might reappear if a param is reattached in the mutator.
|
|
var defBlock = Blockly.Procedures.getDefinition(this.getProcedureCall(),
|
|
this.workspace);
|
|
var mutatorOpen = defBlock && defBlock.mutator &&
|
|
defBlock.mutator.isVisible();
|
|
if (!mutatorOpen) {
|
|
this.quarkConnections_ = {};
|
|
this.quarkIds_ = null;
|
|
}
|
|
if (!paramIds) {
|
|
// Reset the quarks (a mutator is about to open).
|
|
return;
|
|
}
|
|
// Test arguments (arrays of strings) for changes. '\n' is not a valid
|
|
// argument name character, so it is a valid delimiter here.
|
|
if (paramNames.join('\n') == this.arguments_.join('\n')) {
|
|
// No change.
|
|
this.quarkIds_ = paramIds;
|
|
return;
|
|
}
|
|
if (paramIds.length != paramNames.length) {
|
|
throw RangeError('paramNames and paramIds must be the same length.');
|
|
}
|
|
this.setCollapsed(false);
|
|
if (!this.quarkIds_) {
|
|
// Initialize tracking for this block.
|
|
this.quarkConnections_ = {};
|
|
this.quarkIds_ = [];
|
|
}
|
|
// Switch off rendering while the block is rebuilt.
|
|
var savedRendered = this.rendered;
|
|
this.rendered = false;
|
|
// Update the quarkConnections_ with existing connections.
|
|
for (var i = 0; i < this.arguments_.length; i++) {
|
|
var input = this.getInput('ARG' + i);
|
|
if (input) {
|
|
var connection = input.connection.targetConnection;
|
|
this.quarkConnections_[this.quarkIds_[i]] = connection;
|
|
if (mutatorOpen && connection &&
|
|
paramIds.indexOf(this.quarkIds_[i]) == -1) {
|
|
// This connection should no longer be attached to this block.
|
|
connection.disconnect();
|
|
connection.getSourceBlock().bumpNeighbours_();
|
|
}
|
|
}
|
|
}
|
|
// Rebuild the block's arguments.
|
|
this.arguments_ = [].concat(paramNames);
|
|
// And rebuild the argument model list.
|
|
this.argumentVarModels_ = [];
|
|
for (var i = 0; i < this.arguments_.length; i++) {
|
|
var variable = Blockly.Variables.getOrCreateVariablePackage(
|
|
this.workspace, null, this.arguments_[i], '');
|
|
this.argumentVarModels_.push(variable);
|
|
}
|
|
|
|
this.updateShape_();
|
|
this.quarkIds_ = paramIds;
|
|
// Reconnect any child blocks.
|
|
if (this.quarkIds_) {
|
|
for (var i = 0; i < this.arguments_.length; i++) {
|
|
var quarkId = this.quarkIds_[i];
|
|
if (quarkId in this.quarkConnections_) {
|
|
var connection = this.quarkConnections_[quarkId];
|
|
if (!Blockly.Mutator.reconnect(connection, this, 'ARG' + i)) {
|
|
// Block no longer exists or has been attached elsewhere.
|
|
delete this.quarkConnections_[quarkId];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Restore rendering and show the changes.
|
|
this.rendered = savedRendered;
|
|
if (this.rendered) {
|
|
this.render();
|
|
}
|
|
},
|
|
/**
|
|
* Modify this block to have the correct number of arguments.
|
|
* @private
|
|
* @this {Blockly.Block}
|
|
*/
|
|
updateShape_: function() {
|
|
for (var i = 0; i < this.arguments_.length; i++) {
|
|
var field = this.getField('ARGNAME' + i);
|
|
if (field) {
|
|
// Ensure argument name is up to date.
|
|
// The argument name field is deterministic based on the mutation,
|
|
// no need to fire a change event.
|
|
Blockly.Events.disable();
|
|
try {
|
|
field.setValue(this.arguments_[i]);
|
|
} finally {
|
|
Blockly.Events.enable();
|
|
}
|
|
} else {
|
|
// Add new input.
|
|
field = new Blockly.FieldLabel(this.arguments_[i]);
|
|
var input = this.appendValueInput('ARG' + i)
|
|
.setAlign(Blockly.ALIGN_RIGHT)
|
|
.appendField(field, 'ARGNAME' + i);
|
|
input.init();
|
|
}
|
|
}
|
|
// Remove deleted inputs.
|
|
while (this.getInput('ARG' + i)) {
|
|
this.removeInput('ARG' + i);
|
|
i++;
|
|
}
|
|
// Add 'with:' if there are parameters, remove otherwise.
|
|
var topRow = this.getInput('TOPROW');
|
|
if (topRow) {
|
|
if (this.arguments_.length) {
|
|
if (!this.getField('WITH')) {
|
|
topRow.appendField(Blockly.Msg['PROCEDURES_CALL_BEFORE_PARAMS'], 'WITH');
|
|
topRow.init();
|
|
}
|
|
} else {
|
|
if (this.getField('WITH')) {
|
|
topRow.removeField('WITH');
|
|
}
|
|
}
|
|
}
|
|
},
|
|
/**
|
|
* Create XML to represent the (non-editable) name and arguments.
|
|
* @return {!Element} XML storage element.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
mutationToDom: function() {
|
|
var container = Blockly.utils.xml.createElement('mutation');
|
|
container.setAttribute('name', this.getProcedureCall());
|
|
for (var i = 0; i < this.arguments_.length; i++) {
|
|
var parameter = Blockly.utils.xml.createElement('arg');
|
|
parameter.setAttribute('name', this.arguments_[i]);
|
|
container.appendChild(parameter);
|
|
}
|
|
return container;
|
|
},
|
|
/**
|
|
* Parse XML to restore the (non-editable) name and parameters.
|
|
* @param {!Element} xmlElement XML storage element.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
domToMutation: function(xmlElement) {
|
|
var name = xmlElement.getAttribute('name');
|
|
this.renameProcedure(this.getProcedureCall(), name);
|
|
var args = [];
|
|
var paramIds = [];
|
|
for (var i = 0, childNode; childNode = xmlElement.childNodes[i]; i++) {
|
|
if (childNode.nodeName.toLowerCase() == 'arg') {
|
|
args.push(childNode.getAttribute('name'));
|
|
paramIds.push(childNode.getAttribute('paramId'));
|
|
}
|
|
}
|
|
this.setProcedureParameters_(args, paramIds);
|
|
},
|
|
/**
|
|
* Return all variables referenced by this block.
|
|
* @return {!Array.<!Blockly.VariableModel>} List of variable models.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
getVarModels: function() {
|
|
return this.argumentVarModels_;
|
|
},
|
|
/**
|
|
* Procedure calls cannot exist without the corresponding procedure
|
|
* definition. Enforce this link whenever an event is fired.
|
|
* @param {!Blockly.Events.Abstract} event Change event.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
onchange: function(event) {
|
|
if (!this.workspace || this.workspace.isFlyout) {
|
|
// Block is deleted or is in a flyout.
|
|
return;
|
|
}
|
|
if (!event.recordUndo) {
|
|
// Events not generated by user. Skip handling.
|
|
return;
|
|
}
|
|
if (event.type == Blockly.Events.BLOCK_CREATE &&
|
|
event.ids.indexOf(this.id) != -1) {
|
|
// Look for the case where a procedure call was created (usually through
|
|
// paste) and there is no matching definition. In this case, create
|
|
// an empty definition block with the correct signature.
|
|
var name = this.getProcedureCall();
|
|
var def = Blockly.Procedures.getDefinition(name, this.workspace);
|
|
if (def && (def.type != this.defType_ ||
|
|
JSON.stringify(def.arguments_) != JSON.stringify(this.arguments_))) {
|
|
// The signatures don't match.
|
|
def = null;
|
|
}
|
|
if (!def) {
|
|
Blockly.Events.setGroup(event.group);
|
|
/**
|
|
* Create matching definition block.
|
|
* <xml xmlns="https://developers.google.com/blockly/xml">
|
|
* <block type="procedures_defreturn" x="10" y="20">
|
|
* <mutation name="test">
|
|
* <arg name="x"></arg>
|
|
* </mutation>
|
|
* <field name="NAME">test</field>
|
|
* </block>
|
|
* </xml>
|
|
*/
|
|
var xml = Blockly.utils.xml.createElement('xml');
|
|
var block = Blockly.utils.xml.createElement('block');
|
|
block.setAttribute('type', this.defType_);
|
|
var xy = this.getRelativeToSurfaceXY();
|
|
var x = xy.x + Blockly.SNAP_RADIUS * (this.RTL ? -1 : 1);
|
|
var y = xy.y + Blockly.SNAP_RADIUS * 2;
|
|
block.setAttribute('x', x);
|
|
block.setAttribute('y', y);
|
|
var mutation = this.mutationToDom();
|
|
block.appendChild(mutation);
|
|
var field = Blockly.utils.xml.createElement('field');
|
|
field.setAttribute('name', 'NAME');
|
|
field.appendChild(Blockly.utils.xml.createTextNode(
|
|
this.getProcedureCall()));
|
|
block.appendChild(field);
|
|
xml.appendChild(block);
|
|
Blockly.Xml.domToWorkspace(xml, this.workspace);
|
|
Blockly.Events.setGroup(false);
|
|
}
|
|
} else if (event.type == Blockly.Events.BLOCK_DELETE) {
|
|
// Look for the case where a procedure definition has been deleted,
|
|
// leaving this block (a procedure call) orphaned. In this case, delete
|
|
// the orphan.
|
|
var name = this.getProcedureCall();
|
|
var def = Blockly.Procedures.getDefinition(name, this.workspace);
|
|
if (!def) {
|
|
Blockly.Events.setGroup(event.group);
|
|
this.dispose(true, false);
|
|
Blockly.Events.setGroup(false);
|
|
}
|
|
} else if (event.type == Blockly.Events.CHANGE && event.element == 'disabled') {
|
|
var name = this.getProcedureCall();
|
|
var def = Blockly.Procedures.getDefinition(name, this.workspace);
|
|
if (def && def.id == event.blockId) {
|
|
// in most cases the old group should be ''
|
|
var oldGroup = Blockly.Events.getGroup();
|
|
if (oldGroup) {
|
|
// This should only be possible programatically and may indicate a problem
|
|
// with event grouping. If you see this message please investigate. If the
|
|
// use ends up being valid we may need to reorder events in the undo stack.
|
|
console.log('Saw an existing group while responding to a definition change');
|
|
}
|
|
Blockly.Events.setGroup(event.group);
|
|
if (event.newValue) {
|
|
this.previousEnabledState_ = this.isEnabled();
|
|
this.setEnabled(false);
|
|
} else {
|
|
this.setEnabled(this.previousEnabledState_);
|
|
}
|
|
Blockly.Events.setGroup(oldGroup);
|
|
}
|
|
}
|
|
},
|
|
/**
|
|
* Add menu option to find the definition block for this call.
|
|
* @param {!Array} options List of menu options to add to.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
customContextMenu: function(options) {
|
|
if (!this.workspace.isMovable()) {
|
|
// If we center on the block and the workspace isn't movable we could
|
|
// loose blocks at the edges of the workspace.
|
|
return;
|
|
}
|
|
|
|
var option = {enabled: true};
|
|
option.text = Blockly.Msg['PROCEDURES_HIGHLIGHT_DEF'];
|
|
var name = this.getProcedureCall();
|
|
var workspace = this.workspace;
|
|
option.callback = function() {
|
|
var def = Blockly.Procedures.getDefinition(name, workspace);
|
|
if (def) {
|
|
workspace.centerOnBlock(def.id);
|
|
def.select();
|
|
}
|
|
};
|
|
options.push(option);
|
|
},
|
|
defType_: 'procedures_defnoreturn'
|
|
};
|
|
|
|
Blockly.Blocks['procedures_callreturn'] = {
|
|
/**
|
|
* Block for calling a procedure with a return value.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
init: function() {
|
|
this.appendDummyInput('TOPROW')
|
|
.appendField('', 'NAME');
|
|
this.setOutput(true);
|
|
this.setStyle('procedure_blocks');
|
|
// Tooltip is set in domToMutation.
|
|
this.setHelpUrl(Blockly.Msg['PROCEDURES_CALLRETURN_HELPURL']);
|
|
this.arguments_ = [];
|
|
this.quarkConnections_ = {};
|
|
this.quarkIds_ = null;
|
|
this.previousEnabledState_ = true;
|
|
},
|
|
|
|
getProcedureCall: Blockly.Blocks['procedures_callnoreturn'].getProcedureCall,
|
|
renameProcedure: Blockly.Blocks['procedures_callnoreturn'].renameProcedure,
|
|
setProcedureParameters_:
|
|
Blockly.Blocks['procedures_callnoreturn'].setProcedureParameters_,
|
|
updateShape_: Blockly.Blocks['procedures_callnoreturn'].updateShape_,
|
|
mutationToDom: Blockly.Blocks['procedures_callnoreturn'].mutationToDom,
|
|
domToMutation: Blockly.Blocks['procedures_callnoreturn'].domToMutation,
|
|
getVarModels: Blockly.Blocks['procedures_callnoreturn'].getVarModels,
|
|
onchange: Blockly.Blocks['procedures_callnoreturn'].onchange,
|
|
customContextMenu:
|
|
Blockly.Blocks['procedures_callnoreturn'].customContextMenu,
|
|
defType_: 'procedures_defreturn'
|
|
};
|
|
|
|
Blockly.Blocks['procedures_ifreturn'] = {
|
|
/**
|
|
* Block for conditionally returning a value from a procedure.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
init: function() {
|
|
this.appendValueInput('CONDITION')
|
|
.setCheck('Boolean')
|
|
.appendField(Blockly.Msg['CONTROLS_IF_MSG_IF']);
|
|
this.appendValueInput('VALUE')
|
|
.appendField(Blockly.Msg['PROCEDURES_DEFRETURN_RETURN']);
|
|
this.setInputsInline(true);
|
|
this.setPreviousStatement(true);
|
|
this.setNextStatement(true);
|
|
this.setStyle('procedure_blocks');
|
|
this.setTooltip(Blockly.Msg['PROCEDURES_IFRETURN_TOOLTIP']);
|
|
this.setHelpUrl(Blockly.Msg['PROCEDURES_IFRETURN_HELPURL']);
|
|
this.hasReturnValue_ = true;
|
|
},
|
|
/**
|
|
* Create XML to represent whether this block has a return value.
|
|
* @return {!Element} XML storage element.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
mutationToDom: function() {
|
|
var container = Blockly.utils.xml.createElement('mutation');
|
|
container.setAttribute('value', Number(this.hasReturnValue_));
|
|
return container;
|
|
},
|
|
/**
|
|
* Parse XML to restore whether this block has a return value.
|
|
* @param {!Element} xmlElement XML storage element.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
domToMutation: function(xmlElement) {
|
|
var value = xmlElement.getAttribute('value');
|
|
this.hasReturnValue_ = (value == 1);
|
|
if (!this.hasReturnValue_) {
|
|
this.removeInput('VALUE');
|
|
this.appendDummyInput('VALUE')
|
|
.appendField(Blockly.Msg['PROCEDURES_DEFRETURN_RETURN']);
|
|
}
|
|
},
|
|
/**
|
|
* Called whenever anything on the workspace changes.
|
|
* Add warning if this flow block is not nested inside a loop.
|
|
* @param {!Blockly.Events.Abstract} _e Change event.
|
|
* @this {Blockly.Block}
|
|
*/
|
|
onchange: function(_e) {
|
|
if (!this.workspace.isDragging || this.workspace.isDragging()) {
|
|
return; // Don't change state at the start of a drag.
|
|
}
|
|
var legal = false;
|
|
// Is the block nested in a procedure?
|
|
var block = this;
|
|
do {
|
|
if (this.FUNCTION_TYPES.indexOf(block.type) != -1) {
|
|
legal = true;
|
|
break;
|
|
}
|
|
block = block.getSurroundParent();
|
|
} while (block);
|
|
if (legal) {
|
|
// If needed, toggle whether this block has a return value.
|
|
if (block.type == 'procedures_defnoreturn' && this.hasReturnValue_) {
|
|
this.removeInput('VALUE');
|
|
this.appendDummyInput('VALUE')
|
|
.appendField(Blockly.Msg['PROCEDURES_DEFRETURN_RETURN']);
|
|
this.hasReturnValue_ = false;
|
|
} else if (block.type == 'procedures_defreturn' &&
|
|
!this.hasReturnValue_) {
|
|
this.removeInput('VALUE');
|
|
this.appendValueInput('VALUE')
|
|
.appendField(Blockly.Msg['PROCEDURES_DEFRETURN_RETURN']);
|
|
this.hasReturnValue_ = true;
|
|
}
|
|
this.setWarningText(null);
|
|
if (!this.isInFlyout) {
|
|
this.setEnabled(true);
|
|
}
|
|
} else {
|
|
this.setWarningText(Blockly.Msg['PROCEDURES_IFRETURN_WARNING']);
|
|
if (!this.isInFlyout && !this.getInheritedDisabled()) {
|
|
this.setEnabled(false);
|
|
}
|
|
}
|
|
},
|
|
/**
|
|
* List of block types that are functions and thus do not need warnings.
|
|
* To add a new function type add this to your code:
|
|
* Blockly.Blocks['procedures_ifreturn'].FUNCTION_TYPES.push('custom_func');
|
|
*/
|
|
FUNCTION_TYPES: ['procedures_defnoreturn', 'procedures_defreturn']
|
|
};
|