mirror of
https://github.com/google/blockly.git
synced 2025-12-16 06:10:12 +01:00
cf8be1f5d1
* refactor: Use the field registry to instantiate fields for list blocks. * refactor: Use the field registry to instantiate fields for procedure blocks. * refactor: Use the field registry to instantiate fields for text blocks.
1213 lines
41 KiB
JavaScript
1213 lines
41 KiB
JavaScript
/**
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* @license
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* Copyright 2012 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @fileoverview Procedure blocks for Blockly.
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* @suppress {checkTypes|visibility}
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*/
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'use strict';
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goog.module('Blockly.libraryBlocks.procedures');
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/* eslint-disable-next-line no-unused-vars */
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const AbstractEvent = goog.requireType('Blockly.Events.Abstract');
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const ContextMenu = goog.require('Blockly.ContextMenu');
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const Events = goog.require('Blockly.Events');
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const Procedures = goog.require('Blockly.Procedures');
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const Variables = goog.require('Blockly.Variables');
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const Xml = goog.require('Blockly.Xml');
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const fieldRegistry = goog.require('Blockly.fieldRegistry');
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const xmlUtils = goog.require('Blockly.utils.xml');
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const {Align} = goog.require('Blockly.Input');
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/* eslint-disable-next-line no-unused-vars */
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const {Block} = goog.requireType('Blockly.Block');
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// const {BlockDefinition} = goog.requireType('Blockly.blocks');
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// TODO (6248): Properly import the BlockDefinition type.
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/* eslint-disable-next-line no-unused-vars */
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const BlockDefinition = Object;
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const {config} = goog.require('Blockly.config');
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const {Msg} = goog.require('Blockly.Msg');
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const {Mutator} = goog.require('Blockly.Mutator');
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const {Names} = goog.require('Blockly.Names');
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/* eslint-disable-next-line no-unused-vars */
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const {VariableModel} = goog.requireType('Blockly.VariableModel');
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/* eslint-disable-next-line no-unused-vars */
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const {Workspace} = goog.requireType('Blockly.Workspace');
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const {defineBlocks} = goog.require('Blockly.common');
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/** @suppress {extraRequire} */
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goog.require('Blockly.Comment');
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/** @suppress {extraRequire} */
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goog.require('Blockly.Warning');
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/**
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* A dictionary of the block definitions provided by this module.
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* @type {!Object<string, !BlockDefinition>}
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*/
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const blocks = {};
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exports.blocks = blocks;
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/**
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* Common properties for the procedure_defnoreturn and
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* procedure_defreturn blocks.
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*/
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const PROCEDURE_DEF_COMMON = {
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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 {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').appendField(
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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 {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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let paramString = '';
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if (this.arguments_.length) {
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paramString =
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Msg['PROCEDURES_BEFORE_PARAMS'] + ' ' + 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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Events.disable();
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try {
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this.setFieldValue(paramString, 'PARAMS');
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} finally {
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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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* Backwards compatible serialization implementation.
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* @param {boolean=} opt_paramIds If true include the IDs of the parameter
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* quarks. Used by Procedures.mutateCallers for reconnection.
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* @return {!Element} XML storage element.
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* @this {Block}
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*/
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mutationToDom: function(opt_paramIds) {
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const container = xmlUtils.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 (let i = 0; i < this.argumentVarModels_.length; i++) {
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const parameter = xmlUtils.createElement('arg');
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const 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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* Backwards compatible serialization implementation.
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* @param {!Element} xmlElement XML storage element.
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* @this {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 (let i = 0, childNode; (childNode = xmlElement.childNodes[i]); i++) {
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if (childNode.nodeName.toLowerCase() === 'arg') {
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const varName = childNode.getAttribute('name');
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const varId =
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childNode.getAttribute('varid') || childNode.getAttribute('varId');
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this.arguments_.push(varName);
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const variable = 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(
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`Failed to create a variable named "${varName}", ignoring.`);
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}
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}
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}
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this.updateParams_();
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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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* Returns the state of this block as a JSON serializable object.
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* @return {?{params: (!Array<{name: string, id: string}>|undefined),
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* hasStatements: (boolean|undefined)}} The state of this block, eg the
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* parameters and statements.
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*/
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saveExtraState: function() {
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if (!this.argumentVarModels_.length && this.hasStatements_) {
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return null;
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}
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const state = Object.create(null);
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if (this.argumentVarModels_.length) {
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state['params'] = [];
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for (let i = 0; i < this.argumentVarModels_.length; i++) {
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state['params'].push({
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// We don't need to serialize the name, but just in case we decide
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// to separate params from variables.
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'name': this.argumentVarModels_[i].name,
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'id': this.argumentVarModels_[i].getId(),
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});
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}
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}
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if (!this.hasStatements_) {
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state['hasStatements'] = false;
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}
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return state;
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},
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/**
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* Applies the given state to this block.
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* @param {*} state The state to apply to this block, eg the parameters and
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* statements.
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*/
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loadExtraState: function(state) {
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this.arguments_ = [];
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this.argumentVarModels_ = [];
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if (state['params']) {
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for (let i = 0; i < state['params'].length; i++) {
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const param = state['params'][i];
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const variable = Variables.getOrCreateVariablePackage(
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this.workspace, param['id'], param['name'], '');
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this.arguments_.push(variable.name);
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this.argumentVarModels_.push(variable);
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}
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}
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this.updateParams_();
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Procedures.mutateCallers(this);
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this.setStatements_(state['hasStatements'] === false ? false : true);
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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 {!Workspace} workspace Mutator's workspace.
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* @return {!Block} Root block in mutator.
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* @this {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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const containerBlockNode = xmlUtils.createElement('block');
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containerBlockNode.setAttribute('type', 'procedures_mutatorcontainer');
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const statementNode = xmlUtils.createElement('statement');
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statementNode.setAttribute('name', 'STACK');
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containerBlockNode.appendChild(statementNode);
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let node = statementNode;
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for (let i = 0; i < this.arguments_.length; i++) {
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const argBlockNode = xmlUtils.createElement('block');
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argBlockNode.setAttribute('type', 'procedures_mutatorarg');
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const fieldNode = xmlUtils.createElement('field');
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fieldNode.setAttribute('name', 'NAME');
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const argumentName = xmlUtils.createTextNode(this.arguments_[i]);
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fieldNode.appendChild(argumentName);
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argBlockNode.appendChild(fieldNode);
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const nextNode = xmlUtils.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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const containerBlock = 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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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 {!Block} containerBlock Root block in mutator.
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* @this {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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let paramBlock = containerBlock.getInputTargetBlock('STACK');
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while (paramBlock && !paramBlock.isInsertionMarker()) {
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const varName = paramBlock.getFieldValue('NAME');
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this.arguments_.push(varName);
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const 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 =
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paramBlock.nextConnection && paramBlock.nextConnection.targetBlock();
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}
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this.updateParams_();
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Procedures.mutateCallers(this);
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// Show/hide the statement input.
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let 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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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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const stackConnection = this.getInput('STACK').connection;
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this.statementConnection_ = stackConnection.targetConnection;
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if (this.statementConnection_) {
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const 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 all variables referenced by this block.
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* @return {!Array<string>} List of variable names.
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* @this {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<!VariableModel>} List of variable models.
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* @this {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 {Block}
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*/
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renameVarById: function(oldId, newId) {
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const 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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const oldName = oldVariable.name;
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const newVar = this.workspace.getVariableById(newId);
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let change = false;
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for (let 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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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 {!VariableModel} variable The variable being renamed.
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* @package
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* @override
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* @this {Block}
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*/
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updateVarName: function(variable) {
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const newName = variable.name;
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let change = false;
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let oldName;
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for (let i = 0; i < this.argumentVarModels_.length; i++) {
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if (this.argumentVarModels_[i].getId() === variable.getId()) {
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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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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 {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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const blocks = this.mutator.workspace_.getAllBlocks(false);
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for (let i = 0, block; (block = blocks[i]); i++) {
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if (block.type === 'procedures_mutatorarg' &&
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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 {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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const option = {enabled: true};
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const name = this.getFieldValue('NAME');
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option.text = Msg['PROCEDURES_CREATE_DO'].replace('%1', name);
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const xmlMutation = xmlUtils.createElement('mutation');
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xmlMutation.setAttribute('name', name);
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for (let i = 0; i < this.arguments_.length; i++) {
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const xmlArg = xmlUtils.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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const xmlBlock = xmlUtils.createElement('block');
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xmlBlock.setAttribute('type', this.callType_);
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xmlBlock.appendChild(xmlMutation);
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option.callback = 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 (let i = 0; i < this.argumentVarModels_.length; i++) {
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const argOption = {enabled: true};
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const argVar = this.argumentVarModels_[i];
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argOption.text =
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Msg['VARIABLES_SET_CREATE_GET'].replace('%1', argVar.name);
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const argXmlField = Variables.generateVariableFieldDom(argVar);
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const argXmlBlock = xmlUtils.createElement('block');
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argXmlBlock.setAttribute('type', 'variables_get');
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argXmlBlock.appendChild(argXmlField);
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argOption.callback = 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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};
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blocks['procedures_defnoreturn'] = {
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...PROCEDURE_DEF_COMMON,
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/**
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* Block for defining a procedure with no return value.
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* @this {Block}
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*/
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init: function() {
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const initName = Procedures.findLegalName('', this);
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const nameField = fieldRegistry.fromJson({
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type: 'field_input',
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text: initName,
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});
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nameField.setValidator(Procedures.rename);
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nameField.setSpellcheck(false);
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this.appendDummyInput()
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.appendField(Msg['PROCEDURES_DEFNORETURN_TITLE'])
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.appendField(nameField, 'NAME')
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.appendField('', 'PARAMS');
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this.setMutator(new Mutator(['procedures_mutatorarg'], this));
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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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Msg['PROCEDURES_DEFNORETURN_COMMENT']) {
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this.setCommentText(Msg['PROCEDURES_DEFNORETURN_COMMENT']);
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}
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this.setStyle('procedure_blocks');
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this.setTooltip(Msg['PROCEDURES_DEFNORETURN_TOOLTIP']);
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this.setHelpUrl(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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* 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 {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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callType_: 'procedures_callnoreturn',
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};
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|
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blocks['procedures_defreturn'] = {
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...PROCEDURE_DEF_COMMON,
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/**
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* Block for defining a procedure with a return value.
|
|
* @this {Block}
|
|
*/
|
|
init: function() {
|
|
const initName = Procedures.findLegalName('', this);
|
|
const nameField = fieldRegistry.fromJson({
|
|
type: 'field_input',
|
|
text: initName,
|
|
});
|
|
nameField.setValidator(Procedures.rename);
|
|
nameField.setSpellcheck(false);
|
|
this.appendDummyInput()
|
|
.appendField(Msg['PROCEDURES_DEFRETURN_TITLE'])
|
|
.appendField(nameField, 'NAME')
|
|
.appendField('', 'PARAMS');
|
|
this.appendValueInput('RETURN')
|
|
.setAlign(Align.RIGHT)
|
|
.appendField(Msg['PROCEDURES_DEFRETURN_RETURN']);
|
|
this.setMutator(new Mutator(['procedures_mutatorarg'], this));
|
|
if ((this.workspace.options.comments ||
|
|
(this.workspace.options.parentWorkspace &&
|
|
this.workspace.options.parentWorkspace.options.comments)) &&
|
|
Msg['PROCEDURES_DEFRETURN_COMMENT']) {
|
|
this.setCommentText(Msg['PROCEDURES_DEFRETURN_COMMENT']);
|
|
}
|
|
this.setStyle('procedure_blocks');
|
|
this.setTooltip(Msg['PROCEDURES_DEFRETURN_TOOLTIP']);
|
|
this.setHelpUrl(Msg['PROCEDURES_DEFRETURN_HELPURL']);
|
|
this.arguments_ = [];
|
|
this.argumentVarModels_ = [];
|
|
this.setStatements_(true);
|
|
this.statementConnection_ = null;
|
|
},
|
|
/**
|
|
* Return the signature of this procedure definition.
|
|
* @return {!Array} Tuple containing three elements:
|
|
* - the name of the defined procedure,
|
|
* - a list of all its arguments,
|
|
* - that it DOES have a return value.
|
|
* @this {Block}
|
|
*/
|
|
getProcedureDef: function() {
|
|
return [this.getFieldValue('NAME'), this.arguments_, true];
|
|
},
|
|
callType_: 'procedures_callreturn',
|
|
};
|
|
|
|
blocks['procedures_mutatorcontainer'] = {
|
|
/**
|
|
* Mutator block for procedure container.
|
|
* @this {Block}
|
|
*/
|
|
init: function() {
|
|
this.appendDummyInput().appendField(
|
|
Msg['PROCEDURES_MUTATORCONTAINER_TITLE']);
|
|
this.appendStatementInput('STACK');
|
|
this.appendDummyInput('STATEMENT_INPUT')
|
|
.appendField(Msg['PROCEDURES_ALLOW_STATEMENTS'])
|
|
.appendField(
|
|
fieldRegistry.fromJson({
|
|
type: 'field_checkbox',
|
|
checked: true,
|
|
}),
|
|
'STATEMENTS');
|
|
this.setStyle('procedure_blocks');
|
|
this.setTooltip(Msg['PROCEDURES_MUTATORCONTAINER_TOOLTIP']);
|
|
this.contextMenu = false;
|
|
},
|
|
};
|
|
|
|
blocks['procedures_mutatorarg'] = {
|
|
/**
|
|
* Mutator block for procedure argument.
|
|
* @this {Block}
|
|
*/
|
|
init: function() {
|
|
const field = fieldRegistry.fromJson({
|
|
type: 'field_input',
|
|
text: Procedures.DEFAULT_ARG,
|
|
});
|
|
field.setValidator(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_;
|
|
/**
|
|
* @this {FieldTextInput}
|
|
*/
|
|
const newShowEditorFn = function() {
|
|
this.createdVariables_ = [];
|
|
this.oldShowEditorFn_();
|
|
};
|
|
field.showEditor_ = newShowEditorFn;
|
|
|
|
this.appendDummyInput()
|
|
.appendField(Msg['PROCEDURES_MUTATORARG_TITLE'])
|
|
.appendField(field, 'NAME');
|
|
this.setPreviousStatement(true);
|
|
this.setNextStatement(true);
|
|
this.setStyle('procedure_blocks');
|
|
this.setTooltip(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 {FieldTextInput}
|
|
*/
|
|
validator_: function(varName) {
|
|
const sourceBlock = this.getSourceBlock();
|
|
const outerWs = Mutator.findParentWs(sourceBlock.workspace);
|
|
varName = varName.replace(/[\s\xa0]+/g, ' ').replace(/^ | $/g, '');
|
|
if (!varName) {
|
|
return null;
|
|
}
|
|
|
|
// Prevents duplicate parameter names in functions
|
|
const workspace =
|
|
sourceBlock.workspace.targetWorkspace || sourceBlock.workspace;
|
|
const blocks = workspace.getAllBlocks(false);
|
|
const caselessName = varName.toLowerCase();
|
|
for (let i = 0; i < blocks.length; i++) {
|
|
if (blocks[i].id === this.getSourceBlock().id) {
|
|
continue;
|
|
}
|
|
// Other blocks values may not be set yet when this is loaded.
|
|
const otherVar = blocks[i].getFieldValue('NAME');
|
|
if (otherVar && otherVar.toLowerCase() === caselessName) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
// Don't create variables for arg blocks that
|
|
// only exist in the mutator's flyout.
|
|
if (sourceBlock.isInFlyout) {
|
|
return varName;
|
|
}
|
|
|
|
let 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 {FieldTextInput}
|
|
*/
|
|
deleteIntermediateVars_: function(newText) {
|
|
const outerWs = Mutator.findParentWs(this.getSourceBlock().workspace);
|
|
if (!outerWs) {
|
|
return;
|
|
}
|
|
for (let i = 0; i < this.createdVariables_.length; i++) {
|
|
const model = this.createdVariables_[i];
|
|
if (model.name !== newText) {
|
|
outerWs.deleteVariableById(model.getId());
|
|
}
|
|
}
|
|
},
|
|
};
|
|
|
|
/**
|
|
* Common properties for the procedure_callnoreturn and
|
|
* procedure_callreturn blocks.
|
|
*/
|
|
const PROCEDURE_CALL_COMMON = {
|
|
/**
|
|
* Returns the name of the procedure this block calls.
|
|
* @return {string} Procedure name.
|
|
* @this {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 {Block}
|
|
*/
|
|
renameProcedure: function(oldName, newName) {
|
|
if (Names.equals(oldName, this.getProcedureCall())) {
|
|
this.setFieldValue(newName, 'NAME');
|
|
const baseMsg = this.outputConnection ?
|
|
Msg['PROCEDURES_CALLRETURN_TOOLTIP'] :
|
|
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 {Block}
|
|
*/
|
|
setProcedureParameters_: function(paramNames, paramIds) {
|
|
// Data structures:
|
|
// this.arguments = ['x', 'y']
|
|
// Existing param names.
|
|
// this.quarkConnections_ {piua: null, f8b_: 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.
|
|
const defBlock =
|
|
Procedures.getDefinition(this.getProcedureCall(), this.workspace);
|
|
const mutatorOpen =
|
|
defBlock && defBlock.mutator && defBlock.mutator.isVisible();
|
|
if (!mutatorOpen) {
|
|
this.quarkConnections_ = {};
|
|
this.quarkIds_ = null;
|
|
} else {
|
|
// fix #6091 - this call could cause an error when outside if-else
|
|
// expanding block while mutating prevents another error (ancient fix)
|
|
this.setCollapsed(false);
|
|
}
|
|
// 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.');
|
|
}
|
|
if (!this.quarkIds_) {
|
|
// Initialize tracking for this block.
|
|
this.quarkConnections_ = {};
|
|
this.quarkIds_ = [];
|
|
}
|
|
// Switch off rendering while the block is rebuilt.
|
|
const savedRendered = this.rendered;
|
|
this.rendered = false;
|
|
// Update the quarkConnections_ with existing connections.
|
|
for (let i = 0; i < this.arguments_.length; i++) {
|
|
const input = this.getInput('ARG' + i);
|
|
if (input) {
|
|
const 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 (let i = 0; i < this.arguments_.length; i++) {
|
|
const variable = 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 (let i = 0; i < this.arguments_.length; i++) {
|
|
const quarkId = this.quarkIds_[i];
|
|
if (quarkId in this.quarkConnections_) {
|
|
const connection = this.quarkConnections_[quarkId];
|
|
if (!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 {Block}
|
|
*/
|
|
updateShape_: function() {
|
|
for (let i = 0; i < this.arguments_.length; i++) {
|
|
const argField = this.getField('ARGNAME' + i);
|
|
if (argField) {
|
|
// Ensure argument name is up to date.
|
|
// The argument name field is deterministic based on the mutation,
|
|
// no need to fire a change event.
|
|
Events.disable();
|
|
try {
|
|
argField.setValue(this.arguments_[i]);
|
|
} finally {
|
|
Events.enable();
|
|
}
|
|
} else {
|
|
// Add new input.
|
|
const newField = fieldRegistry.fromJson({
|
|
type: 'field_label',
|
|
text: this.arguments_[i],
|
|
});
|
|
const input = this.appendValueInput('ARG' + i)
|
|
.setAlign(Align.RIGHT)
|
|
.appendField(newField, 'ARGNAME' + i);
|
|
input.init();
|
|
}
|
|
}
|
|
// Remove deleted inputs.
|
|
for (let i = this.arguments_.length; this.getInput('ARG' + i); i++) {
|
|
this.removeInput('ARG' + i);
|
|
}
|
|
// Add 'with:' if there are parameters, remove otherwise.
|
|
const topRow = this.getInput('TOPROW');
|
|
if (topRow) {
|
|
if (this.arguments_.length) {
|
|
if (!this.getField('WITH')) {
|
|
topRow.appendField(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.
|
|
* Backwards compatible serialization implementation.
|
|
* @return {!Element} XML storage element.
|
|
* @this {Block}
|
|
*/
|
|
mutationToDom: function() {
|
|
const container = xmlUtils.createElement('mutation');
|
|
container.setAttribute('name', this.getProcedureCall());
|
|
for (let i = 0; i < this.arguments_.length; i++) {
|
|
const parameter = xmlUtils.createElement('arg');
|
|
parameter.setAttribute('name', this.arguments_[i]);
|
|
container.appendChild(parameter);
|
|
}
|
|
return container;
|
|
},
|
|
/**
|
|
* Parse XML to restore the (non-editable) name and parameters.
|
|
* Backwards compatible serialization implementation.
|
|
* @param {!Element} xmlElement XML storage element.
|
|
* @this {Block}
|
|
*/
|
|
domToMutation: function(xmlElement) {
|
|
const name = xmlElement.getAttribute('name');
|
|
this.renameProcedure(this.getProcedureCall(), name);
|
|
const args = [];
|
|
const paramIds = [];
|
|
for (let 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);
|
|
},
|
|
/**
|
|
* Returns the state of this block as a JSON serializable object.
|
|
* @return {{name: string, params:(!Array<string>|undefined)}} The state of
|
|
* this block, ie the params and procedure name.
|
|
*/
|
|
saveExtraState: function() {
|
|
const state = Object.create(null);
|
|
state['name'] = this.getProcedureCall();
|
|
if (this.arguments_.length) {
|
|
state['params'] = this.arguments_;
|
|
}
|
|
return state;
|
|
},
|
|
/**
|
|
* Applies the given state to this block.
|
|
* @param {*} state The state to apply to this block, ie the params and
|
|
* procedure name.
|
|
*/
|
|
loadExtraState: function(state) {
|
|
this.renameProcedure(this.getProcedureCall(), state['name']);
|
|
const params = state['params'];
|
|
if (params) {
|
|
const ids = [];
|
|
ids.length = params.length;
|
|
ids.fill(null);
|
|
this.setProcedureParameters_(params, ids);
|
|
}
|
|
},
|
|
/**
|
|
* Return all variables referenced by this block.
|
|
* @return {!Array<string>} List of variable names.
|
|
* @this {Block}
|
|
*/
|
|
getVars: function() {
|
|
return this.arguments_;
|
|
},
|
|
/**
|
|
* Return all variables referenced by this block.
|
|
* @return {!Array<!VariableModel>} List of variable models.
|
|
* @this {Block}
|
|
*/
|
|
getVarModels: function() {
|
|
return this.argumentVarModels_;
|
|
},
|
|
/**
|
|
* Procedure calls cannot exist without the corresponding procedure
|
|
* definition. Enforce this link whenever an event is fired.
|
|
* @param {!AbstractEvent} event Change event.
|
|
* @this {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 === 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.
|
|
const name = this.getProcedureCall();
|
|
let def = Procedures.getDefinition(name, this.workspace);
|
|
if (def &&
|
|
(def.type !== this.defType_ ||
|
|
JSON.stringify(def.getVars()) !== JSON.stringify(this.arguments_))) {
|
|
// The signatures don't match.
|
|
def = null;
|
|
}
|
|
if (!def) {
|
|
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>
|
|
*/
|
|
const xml = xmlUtils.createElement('xml');
|
|
const block = xmlUtils.createElement('block');
|
|
block.setAttribute('type', this.defType_);
|
|
const xy = this.getRelativeToSurfaceXY();
|
|
const x = xy.x + config.snapRadius * (this.RTL ? -1 : 1);
|
|
const y = xy.y + config.snapRadius * 2;
|
|
block.setAttribute('x', x);
|
|
block.setAttribute('y', y);
|
|
const mutation = this.mutationToDom();
|
|
block.appendChild(mutation);
|
|
const field = xmlUtils.createElement('field');
|
|
field.setAttribute('name', 'NAME');
|
|
const callName = this.getProcedureCall();
|
|
const newName = Procedures.findLegalName(callName, this);
|
|
if (callName !== newName) {
|
|
this.renameProcedure(callName, newName);
|
|
}
|
|
field.appendChild(xmlUtils.createTextNode(callName));
|
|
block.appendChild(field);
|
|
xml.appendChild(block);
|
|
Xml.domToWorkspace(xml, this.workspace);
|
|
Events.setGroup(false);
|
|
}
|
|
} else if (event.type === 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.
|
|
const name = this.getProcedureCall();
|
|
const def = Procedures.getDefinition(name, this.workspace);
|
|
if (!def) {
|
|
Events.setGroup(event.group);
|
|
this.dispose(true);
|
|
Events.setGroup(false);
|
|
}
|
|
} else if (event.type === Events.CHANGE && event.element === 'disabled') {
|
|
const name = this.getProcedureCall();
|
|
const def = Procedures.getDefinition(name, this.workspace);
|
|
if (def && def.id === event.blockId) {
|
|
// in most cases the old group should be ''
|
|
const oldGroup = Events.getGroup();
|
|
if (oldGroup) {
|
|
// This should only be possible programmatically 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');
|
|
}
|
|
Events.setGroup(event.group);
|
|
if (event.newValue) {
|
|
this.previousEnabledState_ = this.isEnabled();
|
|
this.setEnabled(false);
|
|
} else {
|
|
this.setEnabled(this.previousEnabledState_);
|
|
}
|
|
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 {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;
|
|
}
|
|
|
|
const option = {enabled: true};
|
|
option.text = Msg['PROCEDURES_HIGHLIGHT_DEF'];
|
|
const name = this.getProcedureCall();
|
|
const workspace = this.workspace;
|
|
option.callback = function() {
|
|
const def = Procedures.getDefinition(name, workspace);
|
|
if (def) {
|
|
workspace.centerOnBlock(def.id);
|
|
def.select();
|
|
}
|
|
};
|
|
options.push(option);
|
|
},
|
|
};
|
|
|
|
blocks['procedures_callnoreturn'] = {
|
|
...PROCEDURE_CALL_COMMON,
|
|
/**
|
|
* Block for calling a procedure with no return value.
|
|
* @this {Block}
|
|
*/
|
|
init: function() {
|
|
this.appendDummyInput('TOPROW').appendField('', 'NAME');
|
|
this.setPreviousStatement(true);
|
|
this.setNextStatement(true);
|
|
this.setStyle('procedure_blocks');
|
|
// Tooltip is set in renameProcedure.
|
|
this.setHelpUrl(Msg['PROCEDURES_CALLNORETURN_HELPURL']);
|
|
this.arguments_ = [];
|
|
this.argumentVarModels_ = [];
|
|
this.quarkConnections_ = {};
|
|
this.quarkIds_ = null;
|
|
this.previousEnabledState_ = true;
|
|
},
|
|
|
|
defType_: 'procedures_defnoreturn',
|
|
};
|
|
|
|
blocks['procedures_callreturn'] = {
|
|
...PROCEDURE_CALL_COMMON,
|
|
/**
|
|
* Block for calling a procedure with a return value.
|
|
* @this {Block}
|
|
*/
|
|
init: function() {
|
|
this.appendDummyInput('TOPROW').appendField('', 'NAME');
|
|
this.setOutput(true);
|
|
this.setStyle('procedure_blocks');
|
|
// Tooltip is set in domToMutation.
|
|
this.setHelpUrl(Msg['PROCEDURES_CALLRETURN_HELPURL']);
|
|
this.arguments_ = [];
|
|
this.argumentVarModels_ = [];
|
|
this.quarkConnections_ = {};
|
|
this.quarkIds_ = null;
|
|
this.previousEnabledState_ = true;
|
|
},
|
|
|
|
defType_: 'procedures_defreturn',
|
|
};
|
|
|
|
blocks['procedures_ifreturn'] = {
|
|
/**
|
|
* Block for conditionally returning a value from a procedure.
|
|
* @this {Block}
|
|
*/
|
|
init: function() {
|
|
this.appendValueInput('CONDITION')
|
|
.setCheck('Boolean')
|
|
.appendField(Msg['CONTROLS_IF_MSG_IF']);
|
|
this.appendValueInput('VALUE').appendField(
|
|
Msg['PROCEDURES_DEFRETURN_RETURN']);
|
|
this.setInputsInline(true);
|
|
this.setPreviousStatement(true);
|
|
this.setNextStatement(true);
|
|
this.setStyle('procedure_blocks');
|
|
this.setTooltip(Msg['PROCEDURES_IFRETURN_TOOLTIP']);
|
|
this.setHelpUrl(Msg['PROCEDURES_IFRETURN_HELPURL']);
|
|
this.hasReturnValue_ = true;
|
|
},
|
|
/**
|
|
* Create XML to represent whether this block has a return value.
|
|
* @return {!Element} XML storage element.
|
|
* @this {Block}
|
|
*/
|
|
mutationToDom: function() {
|
|
const container = xmlUtils.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 {Block}
|
|
*/
|
|
domToMutation: function(xmlElement) {
|
|
const value = xmlElement.getAttribute('value');
|
|
this.hasReturnValue_ = (value === '1');
|
|
if (!this.hasReturnValue_) {
|
|
this.removeInput('VALUE');
|
|
this.appendDummyInput('VALUE').appendField(
|
|
Msg['PROCEDURES_DEFRETURN_RETURN']);
|
|
}
|
|
},
|
|
|
|
// This block does not need JSO serialization hooks (saveExtraState and
|
|
// loadExtraState) because the state of this block is already encoded in the
|
|
// block's position in the workspace.
|
|
// XML hooks are kept for backwards compatibility.
|
|
|
|
/**
|
|
* Called whenever anything on the workspace changes.
|
|
* Add warning if this flow block is not nested inside a loop.
|
|
* @param {!AbstractEvent} e Move event.
|
|
* @this {Block}
|
|
*/
|
|
onchange: function(e) {
|
|
if (this.workspace.isDragging && this.workspace.isDragging() ||
|
|
e.type !== Events.BLOCK_MOVE) {
|
|
return; // Don't change state at the start of a drag.
|
|
}
|
|
let legal = false;
|
|
// Is the block nested in a procedure?
|
|
let 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(
|
|
Msg['PROCEDURES_DEFRETURN_RETURN']);
|
|
this.hasReturnValue_ = false;
|
|
} else if (
|
|
block.type === 'procedures_defreturn' && !this.hasReturnValue_) {
|
|
this.removeInput('VALUE');
|
|
this.appendValueInput('VALUE').appendField(
|
|
Msg['PROCEDURES_DEFRETURN_RETURN']);
|
|
this.hasReturnValue_ = true;
|
|
}
|
|
this.setWarningText(null);
|
|
} else {
|
|
this.setWarningText(Msg['PROCEDURES_IFRETURN_WARNING']);
|
|
}
|
|
if (!this.isInFlyout) {
|
|
const group = Events.getGroup();
|
|
// Makes it so the move and the disable event get undone together.
|
|
Events.setGroup(e.group);
|
|
this.setEnabled(legal);
|
|
Events.setGroup(group);
|
|
}
|
|
},
|
|
/**
|
|
* List of block types that are functions and thus do not need warnings.
|
|
* To add a new function type add this to your code:
|
|
* Blocks['procedures_ifreturn'].FUNCTION_TYPES.push('custom_func');
|
|
*/
|
|
FUNCTION_TYPES: ['procedures_defnoreturn', 'procedures_defreturn'],
|
|
};
|
|
|
|
// Register provided blocks.
|
|
defineBlocks(blocks);
|