Mercurial > projects > dwt-addons
annotate dwtx/jface/text/contentassist/PopupCloser.d @ 158:25f1f92fa3df
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| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Tue, 26 Aug 2008 02:46:34 +0200 |
| parents | 26688fec6d23 |
| children | 1a5b8f8129df |
| rev | line source |
|---|---|
| 129 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2008 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwtx.jface.text.contentassist.PopupCloser; | |
| 14 | |
| 131 | 15 import dwtx.jface.text.contentassist.ContentAssistEvent; // packageimport |
| 16 import dwtx.jface.text.contentassist.Helper; // packageimport | |
| 17 import dwtx.jface.text.contentassist.IContentAssistant; // packageimport | |
| 18 import dwtx.jface.text.contentassist.CompletionProposal; // packageimport | |
| 19 import dwtx.jface.text.contentassist.ICompletionProposalExtension5; // packageimport | |
| 20 import dwtx.jface.text.contentassist.IContextInformationValidator; // packageimport | |
| 21 import dwtx.jface.text.contentassist.IContentAssistListener; // packageimport | |
| 22 import dwtx.jface.text.contentassist.ICompletionProposalExtension6; // packageimport | |
| 23 import dwtx.jface.text.contentassist.ICompletionListener; // packageimport | |
| 24 import dwtx.jface.text.contentassist.ICompletionProposalExtension2; // packageimport | |
| 25 import dwtx.jface.text.contentassist.IContentAssistantExtension4; // packageimport | |
| 26 import dwtx.jface.text.contentassist.ContextInformation; // packageimport | |
| 27 import dwtx.jface.text.contentassist.ICompletionProposalExtension3; // packageimport | |
| 28 import dwtx.jface.text.contentassist.ContextInformationValidator; // packageimport | |
| 29 import dwtx.jface.text.contentassist.ICompletionProposal; // packageimport | |
| 30 import dwtx.jface.text.contentassist.IContentAssistProcessor; // packageimport | |
| 31 import dwtx.jface.text.contentassist.AdditionalInfoController; // packageimport | |
| 32 import dwtx.jface.text.contentassist.IContextInformationPresenter; // packageimport | |
| 33 import dwtx.jface.text.contentassist.ICompletionProposalExtension4; // packageimport | |
| 34 import dwtx.jface.text.contentassist.ICompletionListenerExtension; // packageimport | |
| 35 import dwtx.jface.text.contentassist.ContextInformationPopup; // packageimport | |
| 36 import dwtx.jface.text.contentassist.IContextInformationExtension; // packageimport | |
| 37 import dwtx.jface.text.contentassist.IContentAssistantExtension2; // packageimport | |
| 38 import dwtx.jface.text.contentassist.ContentAssistSubjectControlAdapter; // packageimport | |
| 39 import dwtx.jface.text.contentassist.CompletionProposalPopup; // packageimport | |
| 40 import dwtx.jface.text.contentassist.ICompletionProposalExtension; // packageimport | |
| 41 import dwtx.jface.text.contentassist.IContextInformation; // packageimport | |
| 42 import dwtx.jface.text.contentassist.IContentAssistantExtension3; // packageimport | |
| 43 import dwtx.jface.text.contentassist.ContentAssistant; // packageimport | |
| 44 import dwtx.jface.text.contentassist.IContentAssistantExtension; // packageimport | |
| 45 import dwtx.jface.text.contentassist.JFaceTextMessages; // packageimport | |
| 46 | |
| 47 | |
| 129 | 48 import dwt.dwthelper.utils; |
| 49 | |
| 50 | |
| 51 | |
| 52 import dwt.DWT; | |
| 53 import dwt.events.FocusEvent; | |
| 54 import dwt.events.FocusListener; | |
| 55 import dwt.events.SelectionEvent; | |
| 56 import dwt.events.SelectionListener; | |
| 57 import dwt.events.ShellAdapter; | |
| 58 import dwt.events.ShellEvent; | |
| 59 import dwt.widgets.Control; | |
| 60 import dwt.widgets.Display; | |
| 61 import dwt.widgets.Event; | |
| 62 import dwt.widgets.Listener; | |
| 63 import dwt.widgets.ScrollBar; | |
| 64 import dwt.widgets.Shell; | |
| 65 import dwt.widgets.Table; | |
| 66 import dwtx.jface.internal.text.DelayedInputChangeListener; | |
| 67 import dwtx.jface.internal.text.InformationControlReplacer; | |
| 68 import dwtx.jface.text.IDelayedInputChangeProvider; | |
| 69 import dwtx.jface.text.IInformationControl; | |
| 70 import dwtx.jface.text.IInformationControlExtension5; | |
| 71 import dwtx.jface.text.IInputChangedListener; | |
| 72 | |
| 73 | |
| 74 /** | |
| 75 * A generic closer class used to monitor various | |
| 76 * interface events in order to determine whether | |
| 77 * a content assistant should be terminated and all | |
| 78 * associated windows be closed. | |
| 79 */ | |
| 80 class PopupCloser : ShellAdapter , FocusListener, SelectionListener, Listener { | |
| 81 | |
| 82 /** The content assistant to be monitored. */ | |
| 83 private ContentAssistant fContentAssistant; | |
| 84 /** The table of a selector popup opened by the content assistant. */ | |
| 85 private Table fTable; | |
| 86 /** The scroll bar of the table for the selector popup. */ | |
| 87 private ScrollBar fScrollbar; | |
| 88 /** Indicates whether the scroll bar thumb has been grabbed. */ | |
| 89 private bool fScrollbarClicked= false; | |
| 90 /** | |
| 91 * The shell on which some listeners are registered. | |
| 92 * @since 3.1 | |
| 93 */ | |
| 94 private Shell fShell; | |
| 95 /** | |
| 96 * The display on which some filters are registered. | |
| 97 * @since 3.4 | |
| 98 */ | |
| 99 private Display fDisplay; | |
| 100 /** | |
| 101 * The additional info controller, or <code>null</code>. | |
| 102 * @since 3.4 | |
| 103 */ | |
| 104 private AdditionalInfoController fAdditionalInfoController; | |
| 105 | |
| 106 /** | |
| 107 * Installs this closer on the given table opened by the given content assistant. | |
| 108 * | |
| 109 * @param contentAssistant the content assistant | |
| 110 * @param table the table to be tracked | |
| 111 */ | |
| 112 public void install(ContentAssistant contentAssistant, Table table) { | |
| 113 install(contentAssistant, table, null); | |
| 114 } | |
|
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115 |
| 129 | 116 /** |
| 117 * Installs this closer on the given table opened by the given content assistant. | |
| 118 * | |
| 119 * @param contentAssistant the content assistant | |
| 120 * @param table the table to be tracked | |
| 121 * @param additionalInfoController the additional info controller, or <code>null</code> | |
| 122 * @since 3.4 | |
| 123 */ | |
| 124 public void install(ContentAssistant contentAssistant, Table table, AdditionalInfoController additionalInfoController) { | |
| 125 fContentAssistant= contentAssistant; | |
| 126 fTable= table; | |
| 127 fAdditionalInfoController= additionalInfoController; | |
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128 |
| 129 | 129 if (Helper.okToUse(fTable)) { |
| 130 fShell= fTable.getShell(); | |
| 131 fDisplay= fShell.getDisplay(); | |
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132 |
| 129 | 133 fShell.addShellListener(this); |
| 134 fTable.addFocusListener(this); | |
| 135 fScrollbar= fTable.getVerticalBar(); | |
| 136 if (fScrollbar !is null) | |
| 137 fScrollbar.addSelectionListener(this); | |
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138 |
| 129 | 139 fDisplay.addFilter(DWT.Activate, this); |
| 140 fDisplay.addFilter(DWT.MouseWheel, this); | |
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141 |
| 129 | 142 fDisplay.addFilter(DWT.Deactivate, this); |
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143 |
| 129 | 144 fDisplay.addFilter(DWT.MouseUp, this); |
| 145 } | |
| 146 } | |
| 147 | |
| 148 /** | |
| 149 * Uninstalls this closer if previously installed. | |
| 150 */ | |
| 151 public void uninstall() { | |
| 152 fContentAssistant= null; | |
| 153 if (Helper.okToUse(fShell)) | |
| 154 fShell.removeShellListener(this); | |
| 155 fShell= null; | |
| 156 if (Helper.okToUse(fScrollbar)) | |
| 157 fScrollbar.removeSelectionListener(this); | |
| 158 if (Helper.okToUse(fTable)) | |
| 159 fTable.removeFocusListener(this); | |
| 160 if (fDisplay !is null && ! fDisplay.isDisposed()) { | |
| 161 fDisplay.removeFilter(DWT.Activate, this); | |
| 162 fDisplay.removeFilter(DWT.MouseWheel, this); | |
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163 |
| 129 | 164 fDisplay.removeFilter(DWT.Deactivate, this); |
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165 |
| 129 | 166 fDisplay.removeFilter(DWT.MouseUp, this); |
| 167 } | |
| 168 } | |
| 169 | |
| 170 /* | |
| 171 * @see dwt.events.SelectionListener#widgetSelected(dwt.events.SelectionEvent) | |
| 172 */ | |
| 173 public void widgetSelected(SelectionEvent e) { | |
| 174 fScrollbarClicked= true; | |
| 175 } | |
| 176 | |
| 177 /* | |
| 178 * @see dwt.events.SelectionListener#widgetDefaultSelected(dwt.events.SelectionEvent) | |
| 179 */ | |
| 180 public void widgetDefaultSelected(SelectionEvent e) { | |
| 181 fScrollbarClicked= true; | |
| 182 } | |
| 183 | |
| 184 /* | |
| 185 * @see dwt.events.FocusListener#focusGained(dwt.events.FocusEvent) | |
| 186 */ | |
| 187 public void focusGained(FocusEvent e) { | |
| 188 } | |
| 189 | |
| 190 /* | |
| 191 * @see dwt.events.FocusListener#focusLost(dwt.events.FocusEvent) | |
| 192 */ | |
| 158 | 193 public void focusLost(FocusEvent e) { |
| 129 | 194 fScrollbarClicked= false; |
| 195 Display d= fTable.getDisplay(); | |
| 158 | 196 d.asyncExec(dgRunnable((FocusEvent e_) { |
| 197 if (Helper.okToUse(fTable) && !fTable.isFocusControl() && !fScrollbarClicked && fContentAssistant !is null) | |
| 198 fContentAssistant.popupFocusLost(e_); | |
| 199 }, e )); | |
| 129 | 200 } |
| 201 | |
| 202 /* | |
| 203 * @see dwt.events.ShellAdapter#shellDeactivated(dwt.events.ShellEvent) | |
| 204 * @since 3.1 | |
| 205 */ | |
| 206 public void shellDeactivated(ShellEvent e) { | |
| 207 if (fContentAssistant !is null && ! fContentAssistant.hasProposalPopupFocus()) | |
| 208 fContentAssistant.hide(); | |
| 209 } | |
| 210 | |
| 211 | |
| 212 /* | |
| 213 * @see dwt.events.ShellAdapter#shellClosed(dwt.events.ShellEvent) | |
| 214 * @since 3.1 | |
| 215 */ | |
| 216 public void shellClosed(ShellEvent e) { | |
| 217 if (fContentAssistant !is null) | |
| 218 fContentAssistant.hide(); | |
| 219 } | |
| 220 | |
| 221 /* | |
| 222 * @see dwt.widgets.Listener#handleEvent(dwt.widgets.Event) | |
| 223 * @since 3.4 | |
| 224 */ | |
| 225 public void handleEvent(Event event) { | |
| 226 switch (event.type) { | |
| 227 case DWT.Activate: | |
| 228 case DWT.MouseWheel: | |
| 229 if (fAdditionalInfoController is null) | |
| 230 return; | |
| 231 if (event.widget is fShell || event.widget is fTable || event.widget is fScrollbar) | |
| 232 return; | |
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233 |
| 129 | 234 if (fAdditionalInfoController.getInternalAccessor().getInformationControlReplacer() is null) |
| 235 fAdditionalInfoController.hideInformationControl(); | |
| 236 else if (!fAdditionalInfoController.getInternalAccessor().isReplaceInProgress()) { | |
| 237 IInformationControl infoControl= fAdditionalInfoController.getCurrentInformationControl2(); | |
| 238 // During isReplaceInProgress(), events can come from the replacing information control | |
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239 if (cast(Control)event.widget && cast(IInformationControlExtension5)infoControl ) { |
| 134 | 240 Control control= cast(Control) event.widget; |
| 241 IInformationControlExtension5 iControl5= cast(IInformationControlExtension5) infoControl; | |
| 129 | 242 if (!(iControl5.containsControl(control))) |
| 243 fAdditionalInfoController.hideInformationControl(); | |
| 244 else if (event.type is DWT.MouseWheel) | |
| 245 fAdditionalInfoController.getInternalAccessor().replaceInformationControl(false); | |
| 246 } else if (infoControl !is null && infoControl.isFocusControl()) { | |
| 247 fAdditionalInfoController.getInternalAccessor().replaceInformationControl(true); | |
| 248 } | |
| 249 } | |
| 250 break; | |
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251 |
| 129 | 252 case DWT.MouseUp: |
| 253 if (fAdditionalInfoController is null || fAdditionalInfoController.getInternalAccessor().isReplaceInProgress()) | |
| 254 break; | |
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255 if (cast(Control)event.widget) { |
| 134 | 256 Control control= cast(Control) event.widget; |
| 129 | 257 IInformationControl infoControl= fAdditionalInfoController.getCurrentInformationControl2(); |
| 138 | 258 if ( cast(IInformationControlExtension5)infoControl ) { |
| 134 | 259 final IInformationControlExtension5 iControl5= cast(IInformationControlExtension5) infoControl; |
| 129 | 260 if (iControl5.containsControl(control)) { |
| 138 | 261 if ( cast(IDelayedInputChangeProvider)infoControl ) { |
| 134 | 262 final IDelayedInputChangeProvider delayedICP= cast(IDelayedInputChangeProvider) infoControl; |
| 129 | 263 final IInputChangedListener inputChangeListener= new DelayedInputChangeListener(delayedICP, fAdditionalInfoController.getInternalAccessor().getInformationControlReplacer()); |
| 264 delayedICP.setDelayedInputChangeListener(inputChangeListener); | |
| 265 // cancel automatic input updating after a small timeout: | |
| 135 | 266 control.getShell().getDisplay().timerExec(1000, new class() Runnable { |
| 129 | 267 public void run() { |
| 268 delayedICP.setDelayedInputChangeListener(null); | |
| 269 } | |
| 270 }); | |
| 271 } | |
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272 |
| 129 | 273 // XXX: workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=212392 : |
| 135 | 274 control.getShell().getDisplay().asyncExec(new class() Runnable { |
| 129 | 275 public void run() { |
| 276 fAdditionalInfoController.getInternalAccessor().replaceInformationControl(true); | |
| 277 } | |
| 278 }); | |
| 279 } | |
| 280 } | |
| 281 } | |
| 282 break; | |
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283 |
| 129 | 284 case DWT.Deactivate: |
| 285 if (fAdditionalInfoController is null) | |
| 286 break; | |
| 287 InformationControlReplacer replacer= fAdditionalInfoController.getInternalAccessor().getInformationControlReplacer(); | |
| 288 if (replacer !is null && fContentAssistant !is null) { | |
| 289 IInformationControl iControl= replacer.getCurrentInformationControl2(); | |
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290 if (cast(Control)event.widget && cast(IInformationControlExtension5)iControl ) { |
| 134 | 291 Control control= cast(Control) event.widget; |
| 292 IInformationControlExtension5 iControl5= cast(IInformationControlExtension5) iControl; | |
| 129 | 293 if (iControl5.containsControl(control)) { |
| 135 | 294 control.getDisplay().asyncExec(new class() Runnable { |
| 129 | 295 public void run() { |
| 296 if (fContentAssistant !is null && ! fContentAssistant.hasProposalPopupFocus()) | |
| 297 fContentAssistant.hide(); | |
| 298 } | |
| 299 }); | |
| 300 } | |
| 301 } | |
| 302 } | |
| 303 break; | |
| 304 } | |
| 305 } | |
| 306 } |