Mercurial > projects > dwt2
annotate org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/PopupCloser.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 14 Mar 2009 18:23:29 +0100 |
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
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10 * Port to the D programming language: |
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11 * Frank Benoit <benoit@tionex.de> |
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12 *******************************************************************************/ |
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13 module org.eclipse.jface.text.contentassist.PopupCloser; |
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14 |
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15 import org.eclipse.jface.text.contentassist.ContentAssistEvent; // packageimport |
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16 import org.eclipse.jface.text.contentassist.Helper; // packageimport |
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17 import org.eclipse.jface.text.contentassist.IContentAssistant; // packageimport |
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18 import org.eclipse.jface.text.contentassist.CompletionProposal; // packageimport |
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19 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension5; // packageimport |
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20 import org.eclipse.jface.text.contentassist.IContextInformationValidator; // packageimport |
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21 import org.eclipse.jface.text.contentassist.IContentAssistListener; // packageimport |
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22 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension6; // packageimport |
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23 import org.eclipse.jface.text.contentassist.ICompletionListener; // packageimport |
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24 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension2; // packageimport |
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25 import org.eclipse.jface.text.contentassist.IContentAssistantExtension4; // packageimport |
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26 import org.eclipse.jface.text.contentassist.ContextInformation; // packageimport |
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27 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension3; // packageimport |
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28 import org.eclipse.jface.text.contentassist.ContextInformationValidator; // packageimport |
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29 import org.eclipse.jface.text.contentassist.ICompletionProposal; // packageimport |
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30 import org.eclipse.jface.text.contentassist.IContentAssistProcessor; // packageimport |
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31 import org.eclipse.jface.text.contentassist.AdditionalInfoController; // packageimport |
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32 import org.eclipse.jface.text.contentassist.IContextInformationPresenter; // packageimport |
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33 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension4; // packageimport |
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34 import org.eclipse.jface.text.contentassist.ICompletionListenerExtension; // packageimport |
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35 import org.eclipse.jface.text.contentassist.ContextInformationPopup; // packageimport |
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36 import org.eclipse.jface.text.contentassist.IContextInformationExtension; // packageimport |
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37 import org.eclipse.jface.text.contentassist.IContentAssistantExtension2; // packageimport |
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38 import org.eclipse.jface.text.contentassist.ContentAssistSubjectControlAdapter; // packageimport |
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39 import org.eclipse.jface.text.contentassist.CompletionProposalPopup; // packageimport |
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40 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension; // packageimport |
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41 import org.eclipse.jface.text.contentassist.IContextInformation; // packageimport |
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42 import org.eclipse.jface.text.contentassist.IContentAssistantExtension3; // packageimport |
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43 import org.eclipse.jface.text.contentassist.ContentAssistant; // packageimport |
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44 import org.eclipse.jface.text.contentassist.IContentAssistantExtension; // packageimport |
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45 import org.eclipse.jface.text.contentassist.JFaceTextMessages; // packageimport |
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46 |
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47 |
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48 import java.lang.all; |
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49 import java.util.Set; |
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50 |
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51 |
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52 |
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53 import org.eclipse.swt.SWT; |
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54 import org.eclipse.swt.events.FocusEvent; |
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55 import org.eclipse.swt.events.FocusListener; |
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56 import org.eclipse.swt.events.SelectionEvent; |
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57 import org.eclipse.swt.events.SelectionListener; |
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58 import org.eclipse.swt.events.ShellAdapter; |
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59 import org.eclipse.swt.events.ShellEvent; |
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60 import org.eclipse.swt.widgets.Control; |
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61 import org.eclipse.swt.widgets.Display; |
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62 import org.eclipse.swt.widgets.Event; |
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63 import org.eclipse.swt.widgets.Listener; |
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64 import org.eclipse.swt.widgets.ScrollBar; |
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65 import org.eclipse.swt.widgets.Shell; |
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66 import org.eclipse.swt.widgets.Table; |
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67 import org.eclipse.jface.internal.text.DelayedInputChangeListener; |
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68 import org.eclipse.jface.internal.text.InformationControlReplacer; |
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69 import org.eclipse.jface.text.IDelayedInputChangeProvider; |
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70 import org.eclipse.jface.text.IInformationControl; |
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71 import org.eclipse.jface.text.IInformationControlExtension5; |
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72 import org.eclipse.jface.text.IInputChangedListener; |
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73 |
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74 |
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75 /** |
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76 * A generic closer class used to monitor various |
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77 * interface events in order to determine whether |
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78 * a content assistant should be terminated and all |
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79 * associated windows be closed. |
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80 */ |
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81 class PopupCloser : ShellAdapter , FocusListener, SelectionListener, Listener { |
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82 |
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83 /** The content assistant to be monitored. */ |
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84 private ContentAssistant fContentAssistant; |
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85 /** The table of a selector popup opened by the content assistant. */ |
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86 private Table fTable; |
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87 /** The scroll bar of the table for the selector popup. */ |
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88 private ScrollBar fScrollbar; |
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89 /** Indicates whether the scroll bar thumb has been grabbed. */ |
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90 private bool fScrollbarClicked= false; |
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91 /** |
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92 * The shell on which some listeners are registered. |
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93 * @since 3.1 |
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94 */ |
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95 private Shell fShell; |
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96 /** |
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97 * The display on which some filters are registered. |
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98 * @since 3.4 |
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99 */ |
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100 private Display fDisplay; |
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101 /** |
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102 * The additional info controller, or <code>null</code>. |
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103 * @since 3.4 |
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104 */ |
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105 private AdditionalInfoController fAdditionalInfoController; |
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106 |
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107 /** |
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108 * Installs this closer on the given table opened by the given content assistant. |
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109 * |
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110 * @param contentAssistant the content assistant |
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111 * @param table the table to be tracked |
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112 */ |
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113 public void install(ContentAssistant contentAssistant, Table table) { |
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114 install(contentAssistant, table, null); |
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115 } |
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116 |
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117 /** |
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118 * Installs this closer on the given table opened by the given content assistant. |
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119 * |
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120 * @param contentAssistant the content assistant |
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121 * @param table the table to be tracked |
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122 * @param additionalInfoController the additional info controller, or <code>null</code> |
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123 * @since 3.4 |
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124 */ |
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125 public void install(ContentAssistant contentAssistant, Table table, AdditionalInfoController additionalInfoController) { |
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126 fContentAssistant= contentAssistant; |
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127 fTable= table; |
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128 fAdditionalInfoController= additionalInfoController; |
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129 |
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130 if (Helper.okToUse(fTable)) { |
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131 fShell= fTable.getShell(); |
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132 fDisplay= fShell.getDisplay(); |
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133 |
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134 fShell.addShellListener(this); |
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135 fTable.addFocusListener(this); |
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136 fScrollbar= fTable.getVerticalBar(); |
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137 if (fScrollbar !is null) |
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138 fScrollbar.addSelectionListener(this); |
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139 |
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140 fDisplay.addFilter(SWT.Activate, this); |
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141 fDisplay.addFilter(SWT.MouseWheel, this); |
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142 |
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143 fDisplay.addFilter(SWT.Deactivate, this); |
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144 |
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145 fDisplay.addFilter(SWT.MouseUp, this); |
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146 } |
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147 } |
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148 |
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149 /** |
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150 * Uninstalls this closer if previously installed. |
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151 */ |
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152 public void uninstall() { |
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153 fContentAssistant= null; |
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154 if (Helper.okToUse(fShell)) |
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155 fShell.removeShellListener(this); |
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156 fShell= null; |
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157 if (Helper.okToUse(fScrollbar)) |
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158 fScrollbar.removeSelectionListener(this); |
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159 if (Helper.okToUse(fTable)) |
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160 fTable.removeFocusListener(this); |
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161 if (fDisplay !is null && ! fDisplay.isDisposed()) { |
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162 fDisplay.removeFilter(SWT.Activate, this); |
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163 fDisplay.removeFilter(SWT.MouseWheel, this); |
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164 |
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165 fDisplay.removeFilter(SWT.Deactivate, this); |
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166 |
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167 fDisplay.removeFilter(SWT.MouseUp, this); |
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168 } |
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169 } |
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170 |
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171 /* |
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172 * @see org.eclipse.swt.events.SelectionListener#widgetSelected(org.eclipse.swt.events.SelectionEvent) |
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173 */ |
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174 public void widgetSelected(SelectionEvent e) { |
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175 fScrollbarClicked= true; |
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176 } |
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177 |
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178 /* |
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179 * @see org.eclipse.swt.events.SelectionListener#widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent) |
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180 */ |
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181 public void widgetDefaultSelected(SelectionEvent e) { |
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182 fScrollbarClicked= true; |
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183 } |
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184 |
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185 /* |
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186 * @see org.eclipse.swt.events.FocusListener#focusGained(org.eclipse.swt.events.FocusEvent) |
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187 */ |
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188 public void focusGained(FocusEvent e) { |
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189 } |
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190 |
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191 /* |
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192 * @see org.eclipse.swt.events.FocusListener#focusLost(org.eclipse.swt.events.FocusEvent) |
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193 */ |
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194 public void focusLost(FocusEvent e) { |
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195 fScrollbarClicked= false; |
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196 Display d= fTable.getDisplay(); |
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197 d.asyncExec(dgRunnable((FocusEvent e_) { |
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198 if (Helper.okToUse(fTable) && !fTable.isFocusControl() && !fScrollbarClicked && fContentAssistant !is null) |
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199 fContentAssistant.popupFocusLost(e_); |
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200 }, e )); |
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201 } |
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202 |
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203 /* |
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204 * @see org.eclipse.swt.events.ShellAdapter#shellDeactivated(org.eclipse.swt.events.ShellEvent) |
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205 * @since 3.1 |
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206 */ |
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207 public void shellDeactivated(ShellEvent e) { |
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208 if (fContentAssistant !is null && ! fContentAssistant.hasProposalPopupFocus()) |
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209 fContentAssistant.hide_package(); |
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210 } |
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211 |
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212 |
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213 /* |
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214 * @see org.eclipse.swt.events.ShellAdapter#shellClosed(org.eclipse.swt.events.ShellEvent) |
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215 * @since 3.1 |
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216 */ |
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217 public void shellClosed(ShellEvent e) { |
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218 if (fContentAssistant !is null) |
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219 fContentAssistant.hide_package(); |
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220 } |
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221 |
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222 /* |
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223 * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event) |
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224 * @since 3.4 |
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225 */ |
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226 public void handleEvent(Event event) { |
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227 switch (event.type) { |
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228 case SWT.Activate: |
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229 case SWT.MouseWheel: |
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230 if (fAdditionalInfoController is null) |
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231 return; |
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232 if (event.widget is fShell || event.widget is fTable || event.widget is fScrollbar) |
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233 return; |
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234 |
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235 if (fAdditionalInfoController.getInternalAccessor().getInformationControlReplacer() is null) |
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236 fAdditionalInfoController.hideInformationControl_package(); |
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237 else if (!fAdditionalInfoController.getInternalAccessor().isReplaceInProgress()) { |
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238 IInformationControl infoControl= fAdditionalInfoController.getCurrentInformationControl2(); |
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239 // During isReplaceInProgress(), events can come from the replacing information control |
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240 if (cast(Control)event.widget && cast(IInformationControlExtension5)infoControl ) { |
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241 Control control= cast(Control) event.widget; |
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242 IInformationControlExtension5 iControl5= cast(IInformationControlExtension5) infoControl; |
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243 if (!(iControl5.containsControl(control))) |
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244 fAdditionalInfoController.hideInformationControl_package(); |
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245 else if (event.type is SWT.MouseWheel) |
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246 fAdditionalInfoController.getInternalAccessor().replaceInformationControl(false); |
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247 } else if (infoControl !is null && infoControl.isFocusControl()) { |
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248 fAdditionalInfoController.getInternalAccessor().replaceInformationControl(true); |
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249 } |
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250 } |
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251 break; |
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252 |
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253 case SWT.MouseUp: |
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254 if (fAdditionalInfoController is null || fAdditionalInfoController.getInternalAccessor().isReplaceInProgress()) |
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255 break; |
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256 if (cast(Control)event.widget) { |
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257 Control control= cast(Control) event.widget; |
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258 IInformationControl infoControl= fAdditionalInfoController.getCurrentInformationControl2(); |
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259 if ( cast(IInformationControlExtension5)infoControl ) { |
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260 final IInformationControlExtension5 iControl5= cast(IInformationControlExtension5) infoControl; |
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261 if (iControl5.containsControl(control)) { |
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262 if ( cast(IDelayedInputChangeProvider)infoControl ) { |
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263 final IDelayedInputChangeProvider delayedICP= cast(IDelayedInputChangeProvider) infoControl; |
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264 final IInputChangedListener inputChangeListener= new DelayedInputChangeListener(delayedICP, fAdditionalInfoController.getInternalAccessor().getInformationControlReplacer()); |
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265 delayedICP.setDelayedInputChangeListener(inputChangeListener); |
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266 // cancel automatic input updating after a small timeout: |
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267 control.getShell().getDisplay().timerExec(1000, new class() Runnable { |
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268 public void run() { |
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269 delayedICP.setDelayedInputChangeListener(null); |
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270 } |
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271 }); |
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272 } |
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273 |
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274 // XXX: workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=212392 : |
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275 control.getShell().getDisplay().asyncExec(new class() Runnable { |
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276 public void run() { |
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277 fAdditionalInfoController.getInternalAccessor().replaceInformationControl(true); |
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278 } |
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279 }); |
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280 } |
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281 } |
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282 } |
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283 break; |
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284 |
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285 case SWT.Deactivate: |
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286 if (fAdditionalInfoController is null) |
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287 break; |
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288 InformationControlReplacer replacer= fAdditionalInfoController.getInternalAccessor().getInformationControlReplacer(); |
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289 if (replacer !is null && fContentAssistant !is null) { |
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290 IInformationControl iControl= replacer.getCurrentInformationControl2(); |
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291 if (cast(Control)event.widget && cast(IInformationControlExtension5)iControl ) { |
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292 Control control= cast(Control) event.widget; |
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293 IInformationControlExtension5 iControl5= cast(IInformationControlExtension5) iControl; |
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294 if (iControl5.containsControl(control)) { |
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295 control.getDisplay().asyncExec(new class() Runnable { |
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296 public void run() { |
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297 if (fContentAssistant !is null && ! fContentAssistant.hasProposalPopupFocus()) |
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298 fContentAssistant.hide_package(); |
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299 } |
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300 }); |
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301 } |
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302 } |
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303 } |
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304 break; |
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305 default: |
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306 } |
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307 } |
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308 } |