1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany |
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2 | // |
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3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | // you may not use this file except in compliance with the License. |
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5 | // You may obtain a copy of the License at |
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6 | // |
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7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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8 | // |
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9 | // Unless required by applicable law or agreed to in writing, software |
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10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | // See the License for the specific language governing permissions and |
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13 | // limitations under the License. |
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14 | |
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15 | package de.ugoe.cs.autoquest.tasktrees.nodeequality; |
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16 | |
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17 | import de.ugoe.cs.autoquest.eventcore.IEventTarget; |
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18 | import de.ugoe.cs.autoquest.eventcore.gui.IInteraction; |
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19 | import de.ugoe.cs.autoquest.eventcore.gui.KeyInteraction; |
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20 | import de.ugoe.cs.autoquest.eventcore.gui.KeyPressed; |
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21 | import de.ugoe.cs.autoquest.eventcore.gui.KeyReleased; |
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22 | import de.ugoe.cs.autoquest.eventcore.gui.KeyTyped; |
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23 | import de.ugoe.cs.autoquest.eventcore.gui.MouseButtonDown; |
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24 | import de.ugoe.cs.autoquest.eventcore.gui.MouseButtonInteraction; |
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25 | import de.ugoe.cs.autoquest.eventcore.gui.MouseButtonUp; |
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26 | import de.ugoe.cs.autoquest.eventcore.gui.MouseClick; |
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27 | import de.ugoe.cs.autoquest.eventcore.gui.MouseDoubleClick; |
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28 | import de.ugoe.cs.autoquest.eventcore.gui.MouseDragAndDrop; |
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29 | import de.ugoe.cs.autoquest.eventcore.gui.Scroll; |
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30 | import de.ugoe.cs.autoquest.eventcore.gui.TextInput; |
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31 | import de.ugoe.cs.autoquest.eventcore.gui.ValueSelection; |
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32 | import de.ugoe.cs.autoquest.eventcore.guimodel.IButton; |
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33 | import de.ugoe.cs.autoquest.eventcore.guimodel.ICheckBox; |
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34 | import de.ugoe.cs.autoquest.eventcore.guimodel.IComboBox; |
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35 | import de.ugoe.cs.autoquest.eventcore.guimodel.IImage; |
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36 | import de.ugoe.cs.autoquest.eventcore.guimodel.IListBox; |
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37 | import de.ugoe.cs.autoquest.eventcore.guimodel.IMenu; |
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38 | import de.ugoe.cs.autoquest.eventcore.guimodel.IMenuButton; |
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39 | import de.ugoe.cs.autoquest.eventcore.guimodel.IRadioButton; |
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40 | import de.ugoe.cs.autoquest.eventcore.guimodel.IShape; |
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41 | import de.ugoe.cs.autoquest.eventcore.guimodel.IText; |
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42 | import de.ugoe.cs.autoquest.eventcore.guimodel.IToolTip; |
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43 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IEventTask; |
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44 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskTreeNode; |
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45 | |
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46 | /** |
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47 | * <p> |
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48 | * This rule compares GUI event tasks (i.e. it is more concrete, than the |
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49 | * {@link EventTaskComparisonRule}). Two GUI event tasks are only equal if their event type and |
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50 | * target are equal. The returned equality is even more fine-grained for events whose type is |
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51 | * {@link TextInput} and {@link ValueSelection}. For text inputs, lexical equality is returned if |
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52 | * the same text is entered using the same key interactions. Syntactical equality is returned if |
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53 | * the same text is entered using different key interactions. Semantical equality is returned if |
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54 | * different text is entered, but into the same event target. Value selections are syntactically |
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55 | * equal, if the same value is selected. Otherwise they are semantically equal. |
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56 | * </p> |
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57 | * |
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58 | * @author Patrick Harms |
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59 | */ |
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60 | public class GUIEventTaskComparisonRule implements NodeComparisonRule { |
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61 | |
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62 | /* (non-Javadoc) |
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63 | * @see NodeComparisonRule#isApplicable(ITaskTreeNode, ITaskTreeNode) |
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64 | */ |
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65 | @Override |
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66 | public boolean isApplicable(ITaskTreeNode node1, ITaskTreeNode node2) { |
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67 | return |
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68 | ((node1 instanceof IEventTask) && (node2 instanceof IEventTask) && |
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69 | (((IEventTask) node1).getEventType() instanceof IInteraction) && |
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70 | (((IEventTask) node2).getEventType() instanceof IInteraction)); |
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71 | } |
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72 | |
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73 | /* (non-Javadoc) |
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74 | * @see NodeComparisonRule#areLexicallyEqual(ITaskTreeNode, ITaskTreeNode) |
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75 | */ |
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76 | @Override |
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77 | public boolean areLexicallyEqual(ITaskTreeNode node1, ITaskTreeNode node2) { |
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78 | NodeEquality equality = getEquality(node1, node2, NodeEquality.LEXICALLY_EQUAL); |
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79 | return (equality != null) && (equality.isAtLeast(NodeEquality.LEXICALLY_EQUAL)); |
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80 | } |
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81 | |
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82 | /* (non-Javadoc) |
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83 | * @see NodeComparisonRule#areSyntacticallyEqual(ITaskTreeNode, ITaskTreeNode) |
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84 | */ |
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85 | @Override |
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86 | public boolean areSyntacticallyEqual(ITaskTreeNode node1, ITaskTreeNode node2) { |
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87 | NodeEquality equality = getEquality(node1, node2, NodeEquality.SYNTACTICALLY_EQUAL); |
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88 | return (equality != null) && (equality.isAtLeast(NodeEquality.SYNTACTICALLY_EQUAL)); |
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89 | } |
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90 | |
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91 | /* (non-Javadoc) |
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92 | * @see NodeComparisonRule#areSemanticallyEqual(ITaskTreeNode, ITaskTreeNode) |
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93 | */ |
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94 | @Override |
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95 | public boolean areSemanticallyEqual(ITaskTreeNode node1, ITaskTreeNode node2) { |
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96 | NodeEquality equality = getEquality(node1, node2, NodeEquality.SEMANTICALLY_EQUAL); |
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97 | return (equality != null) && (equality.isAtLeast(NodeEquality.SEMANTICALLY_EQUAL)); |
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98 | } |
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99 | |
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100 | /* (non-Javadoc) |
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101 | * @see NodeComparisonRule#compare(ITaskTreeNode, ITaskTreeNode) |
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102 | */ |
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103 | @Override |
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104 | public NodeEquality compare(ITaskTreeNode node1, ITaskTreeNode node2) { |
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105 | return getEquality(node1, node2, null); |
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106 | } |
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107 | |
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108 | /** |
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109 | * |
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110 | */ |
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111 | private NodeEquality getEquality(ITaskTreeNode node1, |
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112 | ITaskTreeNode node2, |
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113 | NodeEquality requiredEqualityLevel) |
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114 | { |
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115 | IEventTask task1 = (IEventTask) node1; |
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116 | IEventTask task2 = (IEventTask) node2; |
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117 | |
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118 | if (!task1.getEventTarget().equals(task2.getEventTarget())) { |
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119 | return NodeEquality.UNEQUAL; |
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120 | } |
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121 | |
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122 | IInteraction interaction1 = (IInteraction) task1.getEventType(); |
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123 | IInteraction interaction2 = (IInteraction) task2.getEventType(); |
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124 | |
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125 | return compareInteractions |
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126 | (interaction1, interaction2, task1.getEventTarget(), requiredEqualityLevel); |
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127 | } |
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128 | |
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129 | /** |
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130 | * <p> |
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131 | * compares two interactions. The method delegates to other, more specific compare method, e.g., |
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132 | * {@link #compareTextInputs(TextInput, TextInput)} and |
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133 | * {@link #compareValueSelections(ValueSelection, ValueSelection)}, if any exist for the |
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134 | * concrete interaction types. Otherwise it uses the equals method of the interactions for |
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135 | * comparison. In this case, if the interactions equals method returns true, this method |
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136 | * returns lexical equality. |
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137 | * </p> |
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138 | * |
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139 | * @param interaction1 the first interaction to compare |
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140 | * @param interaction2 the second interaction to compare |
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141 | * @param eventTarget the event target on which the interactions happened (used within |
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142 | * special comparisons like mouse clicks on buttons, where the coordinates |
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143 | * can be ignored) |
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144 | * |
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145 | * @return as described |
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146 | */ |
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147 | private NodeEquality compareInteractions(IInteraction interaction1, |
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148 | IInteraction interaction2, |
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149 | IEventTarget eventTarget, |
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150 | NodeEquality equalityLevel) |
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151 | { |
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152 | NodeEquality level = equalityLevel; |
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153 | |
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154 | if (level == null) { |
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155 | level = NodeEquality.LEXICALLY_EQUAL; |
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156 | } |
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157 | |
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158 | if (interaction1 == interaction2) { |
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159 | return NodeEquality.LEXICALLY_EQUAL; |
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160 | } |
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161 | else if ((interaction1 instanceof KeyInteraction) && |
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162 | (interaction2 instanceof KeyInteraction)) |
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163 | { |
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164 | return compareKeyInteractions |
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165 | ((KeyInteraction) interaction1, (KeyInteraction) interaction2, level); |
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166 | } |
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167 | else if ((interaction1 instanceof MouseButtonInteraction) && |
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168 | (interaction2 instanceof MouseButtonInteraction)) |
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169 | { |
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170 | return compareMouseButtonInteractions |
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171 | ((MouseButtonInteraction) interaction1, (MouseButtonInteraction) interaction2, |
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172 | eventTarget, level); |
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173 | } |
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174 | else if ((interaction1 instanceof Scroll) && (interaction2 instanceof Scroll)) { |
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175 | return compareScrolls((Scroll) interaction1, (Scroll) interaction2, level); |
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176 | } |
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177 | else if ((interaction1 instanceof TextInput) && (interaction2 instanceof TextInput)) { |
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178 | return compareTextInputs |
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179 | ((TextInput) interaction1, (TextInput) interaction2, level); |
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180 | } |
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181 | else if ((interaction1 instanceof ValueSelection) && |
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182 | (interaction2 instanceof ValueSelection)) |
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183 | { |
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184 | return compareValueSelections |
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185 | ((ValueSelection<?>) interaction1, (ValueSelection<?>) interaction2, level); |
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186 | } |
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187 | else if (interaction1.equals(interaction2)) { |
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188 | return NodeEquality.LEXICALLY_EQUAL; |
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189 | } |
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190 | else { |
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191 | return NodeEquality.UNEQUAL; |
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192 | } |
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193 | } |
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194 | |
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195 | /** |
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196 | * <p> |
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197 | * TODO: comment |
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198 | * </p> |
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199 | * |
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200 | * @param interaction1 |
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201 | * @param interaction2 |
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202 | * @param eventTarget |
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203 | * @param level |
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204 | * @return |
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205 | */ |
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206 | private NodeEquality compareKeyInteractions(KeyInteraction interaction1, |
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207 | KeyInteraction interaction2, |
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208 | NodeEquality equalityLevel) |
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209 | { |
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210 | if (((interaction1 instanceof KeyPressed) && (interaction2 instanceof KeyPressed)) || |
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211 | ((interaction1 instanceof KeyReleased) && (interaction2 instanceof KeyReleased)) || |
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212 | ((interaction1 instanceof KeyTyped) && (interaction2 instanceof KeyTyped))) |
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213 | { |
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214 | if ((equalityLevel.isAtLeast(NodeEquality.SYNTACTICALLY_EQUAL)) && |
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215 | (interaction1.getKey() == interaction2.getKey())) |
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216 | { |
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217 | return NodeEquality.LEXICALLY_EQUAL; |
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218 | } |
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219 | else { |
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220 | return NodeEquality.SEMANTICALLY_EQUAL; |
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221 | } |
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222 | } |
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223 | |
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224 | return NodeEquality.UNEQUAL; |
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225 | } |
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226 | |
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227 | /** |
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228 | * <p> |
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229 | * compares two mouse drag and drops. If both drag and drops have the same start and end |
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230 | * coordinates, they are lexically equal. Otherwise, they are semantically equal. |
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231 | * </p> |
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232 | * |
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233 | * @param interaction1 the first mouse drag and drop to compare |
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234 | * @param interaction2 the second mouse drag and drop to compare |
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235 | * |
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236 | * @return as described |
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237 | */ |
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238 | private NodeEquality compareMouseDragAndDrops(MouseDragAndDrop interaction1, |
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239 | MouseDragAndDrop interaction2, |
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240 | NodeEquality equalityLevel) |
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241 | { |
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242 | if (interaction1.getButton() != interaction2.getButton()) { |
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243 | return NodeEquality.UNEQUAL; |
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244 | } |
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245 | |
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246 | if (equalityLevel.isAtLeast(NodeEquality.SYNTACTICALLY_EQUAL)) { |
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247 | int x1 = interaction1.getX(); |
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248 | int x1Start = interaction1.getXStart(); |
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249 | int x2 = interaction2.getX(); |
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250 | int x2Start = interaction2.getXStart(); |
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251 | int y1 = interaction1.getY(); |
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252 | int y1Start = interaction1.getYStart(); |
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253 | int y2 = interaction2.getY(); |
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254 | int y2Start = interaction2.getYStart(); |
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255 | |
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256 | if ((x1Start == x2Start) && (x1 == x2) && (y1Start == y2Start) && (y1 == y2)) { |
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257 | return NodeEquality.LEXICALLY_EQUAL; |
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258 | } |
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259 | } |
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260 | |
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261 | return NodeEquality.SEMANTICALLY_EQUAL; |
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262 | } |
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263 | |
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264 | /** |
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265 | * <p> |
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266 | * compares two mouse button interactions such as clicks, mouse button down, or double clicks. |
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267 | * If both interactions have the same coordinates, they are lexically equal. Otherwise, they |
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268 | * are semantically equal. Mouse clicks for which the coordinates make no lexical difference |
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269 | * (see {@link #clickCoordinatesMakeLexicalDifference(IEventTarget)}) are treated as |
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270 | * lexically equal. |
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271 | * </p> |
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272 | * |
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273 | * @param interaction1 the first mouse button interaction to compare |
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274 | * @param interaction2 the second mouse button interaction to compare |
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275 | * @param eventTarget the event target on which the interactions happened (used within |
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276 | * special comparisons like mouse clicks on buttons, where the coordinates |
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277 | * can be ignored) |
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278 | * |
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279 | * @return as described |
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280 | */ |
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281 | private NodeEquality compareMouseButtonInteractions(MouseButtonInteraction interaction1, |
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282 | MouseButtonInteraction interaction2, |
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283 | IEventTarget eventTarget, |
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284 | NodeEquality equalityLevel) |
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285 | { |
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286 | boolean coordinatesMatch = true; |
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287 | |
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288 | if ((interaction1 instanceof MouseDragAndDrop) && |
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289 | (interaction2 instanceof MouseDragAndDrop)) |
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290 | { |
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291 | return compareMouseDragAndDrops |
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292 | ((MouseDragAndDrop) interaction1, (MouseDragAndDrop) interaction2, equalityLevel); |
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293 | } |
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294 | else if (interaction1.getButton() != interaction2.getButton()) { |
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295 | return NodeEquality.UNEQUAL; |
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296 | } |
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297 | else if (equalityLevel.isAtLeast(NodeEquality.SYNTACTICALLY_EQUAL) && |
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298 | clickCoordinatesMakeLexicalDifference(eventTarget)) |
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299 | { |
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300 | int x1 = interaction1.getX(); |
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301 | int x2 = interaction2.getX(); |
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302 | int y1 = interaction1.getY(); |
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303 | int y2 = interaction2.getY(); |
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304 | |
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305 | if ((x1 != x2) || (y1 != y2)) { |
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306 | coordinatesMatch = false; |
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307 | } |
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308 | } |
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309 | |
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310 | // up to now, they can be equal. Now check the types. Do it as last action as these |
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311 | // checks take the most time and should, therefore, only be done latest |
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312 | if (((interaction1 instanceof MouseClick) && (interaction2 instanceof MouseClick)) || |
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313 | ((interaction1 instanceof MouseDoubleClick) && |
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314 | (interaction2 instanceof MouseDoubleClick)) || |
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315 | ((interaction1 instanceof MouseButtonDown) && |
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316 | (interaction2 instanceof MouseButtonDown)) || |
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317 | ((interaction1 instanceof MouseButtonUp) && |
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318 | (interaction2 instanceof MouseButtonUp))) |
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319 | { |
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320 | if (coordinatesMatch) { |
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321 | return NodeEquality.LEXICALLY_EQUAL; |
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322 | } |
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323 | else { |
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324 | return NodeEquality.SEMANTICALLY_EQUAL; |
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325 | } |
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326 | } |
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327 | |
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328 | return NodeEquality.UNEQUAL; |
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329 | } |
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330 | |
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331 | /** |
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332 | * <p> |
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333 | * compares two mouse button interactions such as clicks, mouse button down, or double clicks. |
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334 | * If both interactions have the same coordinates, they are lexically equal. Otherwise, they |
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335 | * are semantically equal. Mouse clicks for which the coordinates make no lexical difference |
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336 | * (see {@link #clickCoordinatesMakeLexicalDifference(IEventTarget)}) are treated as |
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337 | * lexically equal. |
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338 | * </p> |
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339 | * |
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340 | * @param interaction1 the first mouse button interaction to compare |
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341 | * @param interaction2 the second mouse button interaction to compare |
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342 | * @param eventTarget the event target on which the interactions happened (used within |
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343 | * special comparisons like mouse clicks on buttons, where the coordinates |
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344 | * can be ignored) |
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345 | * |
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346 | * @return as described |
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347 | */ |
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348 | private NodeEquality compareScrolls(Scroll interaction1, |
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349 | Scroll interaction2, |
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350 | NodeEquality equalityLevel) |
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351 | { |
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352 | if (equalityLevel.isAtLeast(NodeEquality.SYNTACTICALLY_EQUAL)) { |
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353 | int x1 = interaction1.getXPosition(); |
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354 | int x2 = interaction2.getXPosition(); |
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355 | int y1 = interaction1.getYPosition(); |
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356 | int y2 = interaction2.getYPosition(); |
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357 | |
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358 | if ((x1 == x2) && (y1 == y2)) { |
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359 | return NodeEquality.LEXICALLY_EQUAL; |
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360 | } |
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361 | } |
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362 | |
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363 | return NodeEquality.SEMANTICALLY_EQUAL; |
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364 | } |
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365 | |
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366 | /** |
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367 | * <p> |
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368 | * compares two text inputs. If both text inputs have the same entered text and text input |
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369 | * events, they are lexically equal. If they only have the same entered text, they are |
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370 | * syntactically equal. If they are only both text inputs, they are semantically equal. |
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371 | * (the equality of the event targets is checked beforehand). |
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372 | * </p> |
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373 | * |
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374 | * @param interaction1 the first text input to compare |
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375 | * @param interaction2 the second text input to compare |
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376 | * |
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377 | * @return as described |
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378 | */ |
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379 | private NodeEquality compareTextInputs(TextInput interaction1, |
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380 | TextInput interaction2, |
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381 | NodeEquality equalityLevel) |
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382 | { |
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383 | switch (equalityLevel) { |
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384 | case LEXICALLY_EQUAL: |
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385 | if (interaction1.getTextInputEvents().equals(interaction2.getTextInputEvents())) { |
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386 | return NodeEquality.LEXICALLY_EQUAL; |
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387 | } |
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388 | // fall through |
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389 | case SYNTACTICALLY_EQUAL: |
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390 | if (interaction1.getEnteredText().equals(interaction2.getEnteredText())) { |
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391 | return NodeEquality.SYNTACTICALLY_EQUAL; |
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392 | } |
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393 | // fall through |
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394 | case SEMANTICALLY_EQUAL: |
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395 | return NodeEquality.SEMANTICALLY_EQUAL; |
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396 | default: |
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397 | return NodeEquality.UNEQUAL; |
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398 | } |
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399 | } |
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400 | |
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401 | /** |
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402 | * <p> |
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403 | * compares two value selections. If both value selections have the same selected value, they |
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404 | * are syntactically equal, otherwise they are semantically equal. |
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405 | * (the equality of the event targets is checked beforehand). |
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406 | * </p> |
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407 | * |
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408 | * @param interaction1 the first value selection to compare |
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409 | * @param interaction2 the second value selection to compare |
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410 | * |
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411 | * @return as described |
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412 | */ |
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413 | private NodeEquality compareValueSelections(ValueSelection<?> interaction1, |
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414 | ValueSelection<?> interaction2, |
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415 | NodeEquality equalityLevel) |
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416 | { |
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417 | if (equalityLevel.isAtLeast(NodeEquality.SYNTACTICALLY_EQUAL)) { |
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418 | Object value1 = interaction1.getSelectedValue(); |
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419 | Object value2 = interaction2.getSelectedValue(); |
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420 | |
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421 | if ((value1 == value2) || ((value1 != null) && (value1.equals(value2)))) { |
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422 | return NodeEquality.LEXICALLY_EQUAL; |
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423 | } |
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424 | } |
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425 | |
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426 | return NodeEquality.SEMANTICALLY_EQUAL; |
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427 | } |
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428 | |
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429 | /** |
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430 | * <p> |
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431 | * Checks, if the coordinates of a click or double click on the provided event target makes |
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432 | * a lexical difference. Mouse clicks and double clicks on buttons, check boxes, |
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433 | * combo boxes, images, list boxes, menu buttons, radio buttons, shapes, uneditable text, |
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434 | * and tool tips have no lexical difference as long as they happen on the same event target. |
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435 | * The concrete coordinates are not relevant. |
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436 | * </p> |
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437 | * |
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438 | * @param eventTarget the event target on which the interaction occurred |
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439 | * |
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440 | * @return if the coordinates are important to be considered for clicks and double clicks, |
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441 | * false else |
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442 | */ |
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443 | private boolean clickCoordinatesMakeLexicalDifference(IEventTarget eventTarget) { |
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444 | if ((eventTarget instanceof IButton) || |
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445 | (eventTarget instanceof ICheckBox) || |
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446 | (eventTarget instanceof IComboBox) || |
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447 | (eventTarget instanceof IImage) || |
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448 | (eventTarget instanceof IListBox) || |
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449 | (eventTarget instanceof IMenu) || |
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450 | (eventTarget instanceof IMenuButton) || |
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451 | (eventTarget instanceof IRadioButton) || |
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452 | (eventTarget instanceof IShape) || |
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453 | (eventTarget instanceof IText) || |
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454 | (eventTarget instanceof IToolTip)) |
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455 | { |
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456 | return false; |
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457 | } |
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458 | else { |
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459 | return true; |
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460 | } |
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461 | } |
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462 | |
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463 | } |
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