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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2005 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 dwtx.jface.internal.text.link.contentassist.PopupCloser2;
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14
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131
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15 import dwtx.jface.internal.text.link.contentassist.IProposalListener; // packageimport
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16 import dwtx.jface.internal.text.link.contentassist.LineBreakingReader; // packageimport
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17 import dwtx.jface.internal.text.link.contentassist.CompletionProposalPopup2; // packageimport
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18 import dwtx.jface.internal.text.link.contentassist.ContextInformationPopup2; // packageimport
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19 import dwtx.jface.internal.text.link.contentassist.ContentAssistMessages; // packageimport
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20 import dwtx.jface.internal.text.link.contentassist.Helper2; // packageimport
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21 import dwtx.jface.internal.text.link.contentassist.IContentAssistListener2; // packageimport
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22 import dwtx.jface.internal.text.link.contentassist.ContentAssistant2; // packageimport
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23 import dwtx.jface.internal.text.link.contentassist.AdditionalInfoController2; // packageimport
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24
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25
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129
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26 import dwt.dwthelper.utils;
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27
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28
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29 import dwt.events.FocusEvent;
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30 import dwt.events.FocusListener;
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31 import dwt.events.SelectionEvent;
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32 import dwt.events.SelectionListener;
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33 import dwt.events.ShellAdapter;
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34 import dwt.events.ShellEvent;
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35 import dwt.widgets.Display;
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36 import dwt.widgets.ScrollBar;
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37 import dwt.widgets.Shell;
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38 import dwt.widgets.Table;
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39
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40
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41 /**
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42 * A generic closer class used to monitor various
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43 * interface events in order to determine whether
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44 * a content assistant should be terminated and all
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45 * associated windows be closed.
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46 */
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47 class PopupCloser2 : ShellAdapter , FocusListener, SelectionListener {
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48
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49 /** The content assistant to be monitored */
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50 private ContentAssistant2 fContentAssistant;
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51 /** The table of a selector popup opened by the content assistant */
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52 private Table fTable;
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53 /** The scrollbar of the table for the selector popup */
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54 private ScrollBar fScrollbar;
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55 /** Indicates whether the scrollbar thumb has been grabbed. */
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56 private bool fScrollbarClicked= false;
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57 /** The shell on which some listeners are registered. */
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58 private Shell fShell;
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59
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60
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61 /**
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62 * Installs this closer on the given table opened by the given content assistant.
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63 *
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64 * @param contentAssistant the content assistant
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65 * @param table the table to be tracked
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66 */
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67 public void install(ContentAssistant2 contentAssistant, Table table) {
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68 fContentAssistant= contentAssistant;
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69 fTable= table;
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70 if (Helper2.okToUse(fTable)) {
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71 Shell shell= fTable.getShell();
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72 if (Helper2.okToUse(shell)) {
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73 fShell= shell;
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74 fShell.addShellListener(this);
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75 }
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76 fTable.addFocusListener(this);
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77 fScrollbar= fTable.getVerticalBar();
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78 if (fScrollbar !is null)
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79 fScrollbar.addSelectionListener(this);
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80 }
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81 }
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82
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83 /**
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84 * Uninstalls this closer if previously installed.
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85 */
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86 public void uninstall() {
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87 fContentAssistant= null;
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88 if (Helper2.okToUse(fShell))
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89 fShell.removeShellListener(this);
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90 fShell= null;
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91 if (Helper2.okToUse(fScrollbar))
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92 fScrollbar.removeSelectionListener(this);
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93 if (Helper2.okToUse(fTable))
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94 fTable.removeFocusListener(this);
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95 }
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96
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97 /*
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98 * @see dwt.events.SelectionListener#widgetSelected(dwt.events.SelectionEvent)
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99 */
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100 public void widgetSelected(SelectionEvent e) {
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101 fScrollbarClicked= true;
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102 }
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103
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104 /*
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105 * @see dwt.events.SelectionListener#widgetDefaultSelected(dwt.events.SelectionEvent)
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106 */
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107 public void widgetDefaultSelected(SelectionEvent e) {
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108 fScrollbarClicked= true;
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109 }
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110
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111 /*
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112 * @see dwt.events.FocusListener#focusGained(dwt.events.FocusEvent)
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113 */
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114 public void focusGained(FocusEvent e) {
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115 }
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116
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117 /*
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118 * @see dwt.events.FocusListener#focusLost(dwt.events.FocusEvent)
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119 */
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158
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120 public void focusLost(FocusEvent e) {
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129
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121 fScrollbarClicked= false;
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122 Display d= fTable.getDisplay();
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158
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123 d.asyncExec(dgRunnable((FocusEvent e_) {
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124 if (Helper2.okToUse(fTable) && !fTable.isFocusControl() && !fScrollbarClicked && fContentAssistant !is null)
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125 fContentAssistant.popupFocusLost(e_);
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126 }, e ));
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129
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127 }
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128
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129 /*
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130 * @see dwt.events.ShellAdapter#shellDeactivated(dwt.events.ShellEvent)
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131 * @since 3.1
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132 */
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133 public void shellDeactivated(ShellEvent e) {
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134 if (fContentAssistant !is null)
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135 fContentAssistant.hide();
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136 }
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137
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138
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139 /*
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140 * @see dwt.events.ShellAdapter#shellClosed(dwt.events.ShellEvent)
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141 * @since 3.1
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142 */
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143 public void shellClosed(ShellEvent e) {
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144 if (fContentAssistant !is null)
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145 fContentAssistant.hide();
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146 }
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147 }
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