1 | /**
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2 | * @license
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3 | * Visual Blocks Editor
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4 | *
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5 | * Copyright 2012 Google Inc.
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6 | * https://developers.google.com/blockly/
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7 | *
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8 | * Licensed under the Apache License, Version 2.0 (the "License");
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9 | * you may not use this file except in compliance with the License.
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10 | * You may obtain a copy of the License at
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11 | *
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12 | * http://www.apache.org/licenses/LICENSE-2.0
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13 | *
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14 | * Unless required by applicable law or agreed to in writing, software
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15 | * distributed under the License is distributed on an "AS IS" BASIS,
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16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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17 | * See the License for the specific language governing permissions and
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18 | * limitations under the License.
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19 | */
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20 |
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21 | /**
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22 | * @fileoverview Logic blocks for Blockly.
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23 | * @author q.neutron@gmail.com (Quynh Neutron)
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24 | */
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25 | using System;
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26 | using System.Linq;
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27 | using System.Text;
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28 | using Bridge;
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29 | using Bridge.Html5;
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30 | using Bridge.jQuery2;
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31 |
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32 | namespace WebMrbc
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33 | {
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34 | public class Logic
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35 | {
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36 | /**
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37 | * Common HSV hue for all blocks in this category.
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38 | */
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39 | public static int HUE = 210;
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40 | }
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41 |
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42 | public class ControlsIfBlock : Block
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43 | {
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44 | public const string type_name = "controls_if";
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45 | internal int elseifCount_;
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46 | internal int elseCount_;
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47 |
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48 | public ControlsIfBlock()
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49 | : base(type_name)
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50 | {
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51 | }
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52 |
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53 | /**
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54 | * Block for if/elseif/else condition.
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55 | * @this Blockly.Block
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56 | */
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57 | public void init()
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58 | {
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59 | this.setHelpUrl(Msg.CONTROLS_IF_HELPURL);
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60 | this.setColour(Logic.HUE);
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61 | this.appendValueInput("IF0")
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62 | .setCheck("Boolean")
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63 | .appendField(Msg.CONTROLS_IF_MSG_IF);
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64 | this.appendStatementInput("DO0")
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65 | .appendField(Msg.CONTROLS_IF_MSG_THEN);
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66 | this.setPreviousStatement(true);
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67 | this.setNextStatement(true);
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68 | this.setMutator(new Mutator(new[] { ControlsIfElseIfBlock.type_name, ControlsIfElseBlock.type_name }));
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69 | // Assign "this" to a variable for use in the tooltip closure below.
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70 | var thisBlock = this;
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71 | this.setTooltip(new Func<string>(() => {
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72 | if (thisBlock.elseifCount_ == 0 && thisBlock.elseCount_ == 0) {
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73 | return Msg.CONTROLS_IF_TOOLTIP_1;
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74 | }
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75 | else if (thisBlock.elseifCount_ == 0 && thisBlock.elseCount_ != 0) {
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76 | return Msg.CONTROLS_IF_TOOLTIP_2;
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77 | }
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78 | else if (thisBlock.elseifCount_ != 0 && thisBlock.elseCount_ == 0) {
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79 | return Msg.CONTROLS_IF_TOOLTIP_3;
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80 | }
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81 | else if (thisBlock.elseifCount_ != 0 && thisBlock.elseCount_ != 0) {
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82 | return Msg.CONTROLS_IF_TOOLTIP_4;
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83 | }
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84 | return "";
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85 | }));
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86 | this.elseifCount_ = 0;
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87 | this.elseCount_ = 0;
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88 | }
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89 |
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90 | /**
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91 | * Create XML to represent the number of else-if and else inputs.
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92 | * @return {Element} XML storage element.
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93 | * @this Blockly.Block
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94 | */
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95 | public Element mutationToDom()
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96 | {
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97 | if (this.elseifCount_ == 0 && this.elseCount_ == 0) {
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98 | return null;
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99 | }
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100 | var container = Document.CreateElement("mutation");
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101 | if (this.elseifCount_ != 0) {
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102 | container.SetAttribute("elseif", this.elseifCount_.ToString());
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103 | }
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104 | if (this.elseCount_ != 0) {
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105 | container.SetAttribute("else", "1");
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106 | }
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107 | return container;
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108 | }
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109 |
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110 | /**
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111 | * Parse XML to restore the else-if and else inputs.
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112 | * @param {!Element} xmlElement XML storage element.
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113 | * @this Blockly.Block
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114 | */
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115 | public void domToMutation(Element xmlElement)
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116 | {
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117 | var count = xmlElement.GetAttribute("elseif");
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118 | this.elseifCount_ = count == null ? 0 : Script.ParseInt(count, 10);
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119 | count = xmlElement.GetAttribute("else");
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120 | this.elseCount_ = count == null ? 0 : Script.ParseInt(count, 10);
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121 | this.updateShape_();
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122 | }
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123 |
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124 | /**
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125 | * Populate the mutator's dialog with this block's components.
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126 | * @param {!Workspace} workspace Mutator's workspace.
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127 | * @return {!Blockly.Block} Root block in mutator.
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128 | * @this Blockly.Block
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129 | */
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130 | public Block decompose(Workspace workspace)
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131 | {
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132 | var containerBlock = workspace.newBlock(ControlsIfIfBlock.type_name);
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133 | containerBlock.initSvg();
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134 | var connection = containerBlock.nextConnection;
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135 | for (var i = 1; i <= this.elseifCount_; i++) {
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136 | var elseifBlock = workspace.newBlock(ControlsIfElseIfBlock.type_name);
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137 | elseifBlock.initSvg();
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138 | connection.connect(elseifBlock.previousConnection);
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139 | connection = elseifBlock.nextConnection;
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140 | }
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141 | if (this.elseCount_ != 0) {
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142 | var elseBlock = workspace.newBlock(ControlsIfElseBlock.type_name);
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143 | elseBlock.initSvg();
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144 | connection.connect(elseBlock.previousConnection);
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145 | }
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146 | return containerBlock;
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147 | }
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148 |
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149 | /**
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150 | * Reconfigure this block based on the mutator dialog's components.
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151 | * @param {!Blockly.Block} containerBlock Root block in mutator.
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152 | * @this Blockly.Block
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153 | */
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154 | public void compose(Block containerBlock)
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155 | {
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156 | var clauseBlock = containerBlock.nextConnection.targetBlock();
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157 | // Count number of inputs.
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158 | this.elseifCount_ = 0;
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159 | this.elseCount_ = 0;
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160 | var valueConnections = new Connection[] { null };
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161 | var statementConnections = new Connection[] { null };
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162 | var elseStatementConnection = (Connection)null;
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163 | while (clauseBlock != null) {
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164 | switch (clauseBlock.type) {
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165 | case ControlsIfElseIfBlock.type_name:
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166 | this.elseifCount_++;
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167 | valueConnections.Push(((ControlsIfElseIfBlock)clauseBlock).valueConnection_);
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168 | statementConnections.Push(((ControlsIfElseIfBlock)clauseBlock).statementConnection_);
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169 | break;
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170 | case ControlsIfElseBlock.type_name:
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171 | this.elseCount_++;
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172 | elseStatementConnection = ((ControlsIfElseBlock)clauseBlock).statementConnection_;
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173 | break;
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174 | default:
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175 | throw new Exception("Unknown block type.");
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176 | }
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177 | clauseBlock = (clauseBlock.nextConnection != null) ?
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178 | clauseBlock.nextConnection.targetBlock() : null;
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179 | }
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180 | this.updateShape_();
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181 | // Reconnect any child blocks.
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182 | for (var i = 1; i <= this.elseifCount_; i++) {
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183 | Mutator.reconnect(valueConnections[i], this, "IF" + i);
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184 | Mutator.reconnect(statementConnections[i], this, "DO" + i);
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185 | }
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186 | Mutator.reconnect(elseStatementConnection, this, "ELSE");
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187 | }
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188 |
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189 | /**
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190 | * Store pointers to any connected child blocks.
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191 | * @param {!Blockly.Block} containerBlock Root block in mutator.
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192 | * @this Blockly.Block
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193 | */
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194 | public void saveConnections(Block containerBlock)
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195 | {
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196 | var clauseBlock = containerBlock.nextConnection.targetBlock();
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197 | var i = 1;
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198 | while (clauseBlock != null) {
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199 | switch (clauseBlock.type) {
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200 | case ControlsIfElseIfBlock.type_name: {
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201 | var inputIf = this.getInput("IF" + i);
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202 | var inputDo = this.getInput("DO" + i);
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203 | ((ControlsIfElseIfBlock)clauseBlock).valueConnection_ =
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204 | (inputIf != null) ? inputIf.connection.targetConnection : null;
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205 | ((ControlsIfElseIfBlock)clauseBlock).statementConnection_ =
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206 | (inputDo != null) ? inputDo.connection.targetConnection : null;
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207 | i++;
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208 | }
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209 | break;
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210 | case ControlsIfElseBlock.type_name: {
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211 | var inputDo = this.getInput("ELSE");
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212 | ((ControlsIfElseBlock)clauseBlock).statementConnection_ =
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213 | (inputDo != null) ? inputDo.connection.targetConnection : null;
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214 | }
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215 | break;
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216 | default:
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217 | throw new Exception("Unknown block type.");
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218 | }
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219 | clauseBlock = (clauseBlock.nextConnection != null) ?
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220 | clauseBlock.nextConnection.targetBlock() : null;
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221 | }
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222 | }
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223 |
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224 | /**
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225 | * Modify this block to have the correct number of inputs.
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226 | * @private
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227 | * @this Blockly.Block
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228 | */
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229 | private void updateShape_()
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230 | {
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231 | // Delete everything.
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232 | if (this.getInput("ELSE") != null) {
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233 | this.removeInput("ELSE");
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234 | }
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235 | var i = 1;
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236 | while (this.getInput("IF" + i) != null) {
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237 | this.removeInput("IF" + i);
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238 | this.removeInput("DO" + i);
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239 | i++;
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240 | }
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241 | // Rebuild block.
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242 | for (i = 1; i <= this.elseifCount_; i++) {
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243 | this.appendValueInput("IF" + i)
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244 | .setCheck("Boolean")
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245 | .appendField(Msg.CONTROLS_IF_MSG_ELSEIF);
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246 | this.appendStatementInput("DO" + i)
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247 | .appendField(Msg.CONTROLS_IF_MSG_THEN);
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248 | }
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249 | if (this.elseCount_ != 0) {
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250 | this.appendStatementInput("ELSE")
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251 | .appendField(Msg.CONTROLS_IF_MSG_ELSE);
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252 | }
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253 | }
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254 | }
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255 |
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256 | public class ControlsIfIfBlock : Block
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257 | {
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258 | public const string type_name = "controls_if_if";
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259 |
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260 | public ControlsIfIfBlock()
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261 | : base(type_name)
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262 | {
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263 | }
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264 |
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265 | /**
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266 | * Mutator block for if container.
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267 | * @this Blockly.Block
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268 | */
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269 | public void init()
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270 | {
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271 | this.setColour(Logic.HUE);
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272 | this.appendDummyInput()
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273 | .appendField(Msg.CONTROLS_IF_IF_TITLE_IF);
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274 | this.setNextStatement(true);
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275 | this.setTooltip(Msg.CONTROLS_IF_IF_TOOLTIP);
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276 | this.contextMenu = false;
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277 | }
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278 | }
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279 |
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280 | [IgnoreCast]
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281 | public class ControlsIfElseIfBlock : Block
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282 | {
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283 | public const string type_name = "controls_if_elseif";
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284 | public Connection valueConnection_;
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285 | public Connection statementConnection_;
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286 |
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287 | public ControlsIfElseIfBlock()
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288 | : base(type_name)
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289 | {
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290 | }
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291 |
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292 | /**
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293 | * Mutator bolck for else-if condition.
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294 | * @this Blockly.Block
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295 | */
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296 | public void init()
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297 | {
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298 | this.setColour(Logic.HUE);
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299 | this.appendDummyInput()
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300 | .appendField(Msg.CONTROLS_IF_ELSEIF_TITLE_ELSEIF);
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301 | this.setPreviousStatement(true);
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302 | this.setNextStatement(true);
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303 | this.setTooltip(Msg.CONTROLS_IF_ELSEIF_TOOLTIP);
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304 | this.contextMenu = false;
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305 | }
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306 | }
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307 |
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308 | [IgnoreCast]
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309 | public class ControlsIfElseBlock : Block
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310 | {
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311 | public const string type_name = "controls_if_else";
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312 | public Connection statementConnection_;
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313 |
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314 | public ControlsIfElseBlock()
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315 | : base(type_name)
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316 | {
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317 | }
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318 |
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319 | /**
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320 | * Mutator block for else condition.
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321 | * @this Blockly.Block
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322 | */
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323 | public void init()
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324 | {
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325 | this.setColour(Logic.HUE);
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326 | this.appendDummyInput()
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327 | .appendField(Msg.CONTROLS_IF_ELSE_TITLE_ELSE);
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328 | this.setPreviousStatement(true);
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329 | this.setTooltip(Msg.CONTROLS_IF_ELSE_TOOLTIP);
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330 | this.contextMenu = false;
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331 | }
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332 | }
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333 |
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334 | public class LogicCompareBlock : Block
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335 | {
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336 | public const string type_name = "logic_compare";
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337 |
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338 | public LogicCompareBlock()
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339 | : base(type_name)
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340 | {
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341 | }
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342 |
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343 | /**
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344 | * Block for comparison operator.
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345 | * @this Blockly.Block
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346 | */
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347 | public void init()
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348 | {
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349 | var rtlOperators = new[] {
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350 | new [] {"=", "EQ"},
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351 | new [] {"\u2260", "NEQ"},
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352 | new [] {"\u200F<\u200F", "LT"},
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353 | new [] {"\u200F\u2264\u200F", "LTE"},
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354 | new [] {"\u200F>\u200F", "GT"},
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355 | new [] {"\u200F\u2265\u200F", "GTE"}
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356 | };
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357 | var ltrOperators = new[] {
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358 | new [] {"=", "EQ"},
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359 | new [] {"\u2260", "NEQ"},
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360 | new [] {"<", "LT"},
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361 | new [] {"\u2264", "LTE"},
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362 | new [] {">", "GT"},
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363 | new [] {"\u2265", "GTE"}
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364 | };
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365 | var OPERATORS = this.RTL ? rtlOperators : ltrOperators;
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366 | this.setHelpUrl(Msg.LOGIC_COMPARE_HELPURL);
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367 | this.setColour(Logic.HUE);
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368 | this.setOutput(true, "Boolean");
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369 | this.appendValueInput("A");
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370 | this.appendValueInput("B")
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371 | .appendField(new FieldDropdown(OPERATORS), "OP");
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372 | this.setInputsInline(true);
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373 | // Assign "this" to a variable for use in the tooltip closure below.
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374 | var thisBlock = this;
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375 | this.setTooltip(new Func<string>(() => {
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376 | switch (thisBlock.getFieldValue("OP")) {
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377 | case "EQ": return Msg.LOGIC_COMPARE_TOOLTIP_EQ;
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378 | case "NEQ": return Msg.LOGIC_COMPARE_TOOLTIP_NEQ;
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379 | case "LT": return Msg.LOGIC_COMPARE_TOOLTIP_LT;
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380 | case "LTE": return Msg.LOGIC_COMPARE_TOOLTIP_LTE;
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381 | case "GT": return Msg.LOGIC_COMPARE_TOOLTIP_GT;
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382 | case "GTE": return Msg.LOGIC_COMPARE_TOOLTIP_GTE;
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383 | }
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384 | return "";
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385 | }));
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386 | this.prevBlocks_ = new Block[] { null, null };
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387 | }
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388 |
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389 | /**
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390 | * Called whenever anything on the workspace changes.
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391 | * Prevent mismatched types from being compared.
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392 | * @param {!Abstract} e Change event.
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393 | * @this Blockly.Block
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394 | */
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395 | public void onchange(Abstract e)
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396 | {
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397 | var blockA = this.getInputTargetBlock("A");
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398 | var blockB = this.getInputTargetBlock("B");
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399 | // Disconnect blocks that existed prior to this change if they don"t match.
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400 | if (blockA != null && blockB != null &&
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401 | !blockA.outputConnection.checkType_(blockB.outputConnection)) {
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402 | // Mismatch between two inputs. Disconnect previous and bump it away.
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403 | // Ensure that any disconnections are grouped with the causing event.
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404 | Blockly.Events.setGroup(e.group);
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405 | for (var i = 0; i < this.prevBlocks_.Length; i++) {
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406 | var block = this.prevBlocks_[i];
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407 | if (block == blockA || block == blockB) {
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408 | block.unplug();
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409 | block.bumpNeighbours_();
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410 | }
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411 | }
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412 | Blockly.Events.setGroup(false.ToString());
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413 | }
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414 | this.prevBlocks_[0] = blockA;
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415 | this.prevBlocks_[1] = blockB;
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416 | }
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417 | }
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418 |
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419 | public class LogicOperationBlock : Block
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420 | {
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421 | public const string type_name = "logic_operation";
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422 |
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423 | public LogicOperationBlock()
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424 | : base(type_name)
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425 | {
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426 | }
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427 |
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428 | /**
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429 | * Block for logical operations: "and", "or".
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430 | * @this Blockly.Block
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431 | */
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432 | public void init()
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433 | {
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434 | var OPERATORS = new[] {
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435 | new [] {Msg.LOGIC_OPERATION_AND, "AND"},
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436 | new [] {Msg.LOGIC_OPERATION_OR, "OR"}
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437 | };
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438 | this.setHelpUrl(Msg.LOGIC_OPERATION_HELPURL);
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439 | this.setColour(Logic.HUE);
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440 | this.setOutput(true, "Boolean");
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441 | this.appendValueInput("A")
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442 | .setCheck("Boolean");
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443 | this.appendValueInput("B")
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444 | .setCheck("Boolean")
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445 | .appendField(new FieldDropdown(OPERATORS), "OP");
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446 | this.setInputsInline(true);
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447 | // Assign "this" to a variable for use in the tooltip closure below.
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448 | var thisBlock = this;
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449 | this.setTooltip(new Func<string>(() => {
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450 | switch (thisBlock.getFieldValue("OP")) {
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451 | case "AND": return Msg.LOGIC_OPERATION_TOOLTIP_AND;
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452 | case "OR": return Msg.LOGIC_OPERATION_TOOLTIP_OR;
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453 | }
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454 | return "";
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455 | }));
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456 | }
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457 | }
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458 |
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459 | public class LogicNegateBlock : Block
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460 | {
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461 | public const string type_name = "logic_negate";
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462 |
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463 | public LogicNegateBlock()
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464 | : base(type_name)
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465 | {
|
---|
466 | }
|
---|
467 |
|
---|
468 | /**
|
---|
469 | * Block for negation.
|
---|
470 | * @this Blockly.Block
|
---|
471 | */
|
---|
472 | public void init()
|
---|
473 | {
|
---|
474 | this.jsonInit(new {
|
---|
475 | message0 = Msg.LOGIC_NEGATE_TITLE,
|
---|
476 | args0 = new object[] {
|
---|
477 | new {
|
---|
478 | type = "input_value",
|
---|
479 | name = "BOOL",
|
---|
480 | check = "Boolean"
|
---|
481 | }
|
---|
482 | },
|
---|
483 | output = "Boolean",
|
---|
484 | colour = Logic.HUE,
|
---|
485 | tooltip = Msg.LOGIC_NEGATE_TOOLTIP,
|
---|
486 | helpUrl = Msg.LOGIC_NEGATE_HELPURL
|
---|
487 | });
|
---|
488 | }
|
---|
489 | }
|
---|
490 |
|
---|
491 | public class LogicBooleanBlock : Block
|
---|
492 | {
|
---|
493 | public const string type_name = "logic_boolean";
|
---|
494 |
|
---|
495 | public LogicBooleanBlock()
|
---|
496 | : base(type_name)
|
---|
497 | {
|
---|
498 | }
|
---|
499 |
|
---|
500 | /**
|
---|
501 | * Block for boolean data type: true and false.
|
---|
502 | * @this Blockly.Block
|
---|
503 | */
|
---|
504 | public void init()
|
---|
505 | {
|
---|
506 | this.jsonInit(new {
|
---|
507 | message0 = "%1",
|
---|
508 | args0 = new object[] {
|
---|
509 | new {
|
---|
510 | type = "field_dropdown",
|
---|
511 | name = "BOOL",
|
---|
512 | options = new [] {
|
---|
513 | new [] {Msg.LOGIC_BOOLEAN_TRUE, "TRUE"},
|
---|
514 | new [] {Msg.LOGIC_BOOLEAN_FALSE, "FALSE"}
|
---|
515 | }
|
---|
516 | }
|
---|
517 | },
|
---|
518 | output = "Boolean",
|
---|
519 | colour = Logic.HUE,
|
---|
520 | tooltip = Msg.LOGIC_BOOLEAN_TOOLTIP,
|
---|
521 | helpUrl = Msg.LOGIC_BOOLEAN_HELPURL
|
---|
522 | });
|
---|
523 | }
|
---|
524 | }
|
---|
525 |
|
---|
526 | public class LogicNullBlock : Block
|
---|
527 | {
|
---|
528 | public const string type_name = "logic_null";
|
---|
529 |
|
---|
530 | public LogicNullBlock()
|
---|
531 | : base(type_name)
|
---|
532 | {
|
---|
533 | }
|
---|
534 |
|
---|
535 | /**
|
---|
536 | * Block for null data type.
|
---|
537 | * @this Blockly.Block
|
---|
538 | */
|
---|
539 | public void init()
|
---|
540 | {
|
---|
541 | this.jsonInit(new {
|
---|
542 | message0 = Msg.LOGIC_NULL,
|
---|
543 | output = (string[])null,
|
---|
544 | colour = Logic.HUE,
|
---|
545 | tooltip = Msg.LOGIC_NULL_TOOLTIP,
|
---|
546 | helpUrl = Msg.LOGIC_NULL_HELPURL
|
---|
547 | });
|
---|
548 | }
|
---|
549 | }
|
---|
550 |
|
---|
551 | public class LogicTernaryBlock : Block
|
---|
552 | {
|
---|
553 | public const string type_name = "logic_ternary";
|
---|
554 | Connection prevParentConnection_;
|
---|
555 |
|
---|
556 | public LogicTernaryBlock()
|
---|
557 | : base(type_name)
|
---|
558 | {
|
---|
559 | }
|
---|
560 |
|
---|
561 | /**
|
---|
562 | * Block for ternary operator.
|
---|
563 | * @this Blockly.Block
|
---|
564 | */
|
---|
565 | public void init()
|
---|
566 | {
|
---|
567 | this.setHelpUrl(Msg.LOGIC_TERNARY_HELPURL);
|
---|
568 | this.setColour(Logic.HUE);
|
---|
569 | this.appendValueInput("IF")
|
---|
570 | .setCheck("Boolean")
|
---|
571 | .appendField(Msg.LOGIC_TERNARY_CONDITION);
|
---|
572 | this.appendValueInput("THEN")
|
---|
573 | .appendField(Msg.LOGIC_TERNARY_IF_TRUE);
|
---|
574 | this.appendValueInput("ELSE")
|
---|
575 | .appendField(Msg.LOGIC_TERNARY_IF_FALSE);
|
---|
576 | this.setOutput(true);
|
---|
577 | this.setTooltip(Msg.LOGIC_TERNARY_TOOLTIP);
|
---|
578 | this.prevParentConnection_ = null;
|
---|
579 | }
|
---|
580 |
|
---|
581 | /**
|
---|
582 | * Called whenever anything on the workspace changes.
|
---|
583 | * Prevent mismatched types.
|
---|
584 | * @param {!Abstract} e Change event.
|
---|
585 | * @this Blockly.Block
|
---|
586 | */
|
---|
587 | public void onchange(Abstract e)
|
---|
588 | {
|
---|
589 | var blockA = this.getInputTargetBlock("THEN");
|
---|
590 | var blockB = this.getInputTargetBlock("ELSE");
|
---|
591 | var parentConnection = this.outputConnection.targetConnection;
|
---|
592 | // Disconnect blocks that existed prior to this change if they don"t match.
|
---|
593 | if ((blockA != null || blockB != null) && parentConnection != null) {
|
---|
594 | for (var i = 0; i < 2; i++) {
|
---|
595 | var block = (i == 1) ? blockA : blockB;
|
---|
596 | if (block != null && !block.outputConnection.checkType_(parentConnection)) {
|
---|
597 | // Ensure that any disconnections are grouped with the causing event.
|
---|
598 | Blockly.Events.setGroup(e.group);
|
---|
599 | if (parentConnection == this.prevParentConnection_) {
|
---|
600 | this.unplug();
|
---|
601 | parentConnection.getSourceBlock().bumpNeighbours_();
|
---|
602 | }
|
---|
603 | else {
|
---|
604 | block.unplug();
|
---|
605 | block.bumpNeighbours_();
|
---|
606 | }
|
---|
607 | Blockly.Events.setGroup(false.ToString());
|
---|
608 | }
|
---|
609 | }
|
---|
610 | }
|
---|
611 | this.prevParentConnection_ = parentConnection;
|
---|
612 | }
|
---|
613 | }
|
---|
614 | }
|
---|