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comparison org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/PopupCloser.d @ 12:bc29606a740c

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Added dwt-addons in original directory structure of eclipse.org
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:23:29 +0100
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11:43904fec5dca 12:bc29606a740c
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 org.eclipse.jface.text.contentassist.PopupCloser;
14
15 import org.eclipse.jface.text.contentassist.ContentAssistEvent; // packageimport
16 import org.eclipse.jface.text.contentassist.Helper; // packageimport
17 import org.eclipse.jface.text.contentassist.IContentAssistant; // packageimport
18 import org.eclipse.jface.text.contentassist.CompletionProposal; // packageimport
19 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension5; // packageimport
20 import org.eclipse.jface.text.contentassist.IContextInformationValidator; // packageimport
21 import org.eclipse.jface.text.contentassist.IContentAssistListener; // packageimport
22 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension6; // packageimport
23 import org.eclipse.jface.text.contentassist.ICompletionListener; // packageimport
24 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension2; // packageimport
25 import org.eclipse.jface.text.contentassist.IContentAssistantExtension4; // packageimport
26 import org.eclipse.jface.text.contentassist.ContextInformation; // packageimport
27 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension3; // packageimport
28 import org.eclipse.jface.text.contentassist.ContextInformationValidator; // packageimport
29 import org.eclipse.jface.text.contentassist.ICompletionProposal; // packageimport
30 import org.eclipse.jface.text.contentassist.IContentAssistProcessor; // packageimport
31 import org.eclipse.jface.text.contentassist.AdditionalInfoController; // packageimport
32 import org.eclipse.jface.text.contentassist.IContextInformationPresenter; // packageimport
33 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension4; // packageimport
34 import org.eclipse.jface.text.contentassist.ICompletionListenerExtension; // packageimport
35 import org.eclipse.jface.text.contentassist.ContextInformationPopup; // packageimport
36 import org.eclipse.jface.text.contentassist.IContextInformationExtension; // packageimport
37 import org.eclipse.jface.text.contentassist.IContentAssistantExtension2; // packageimport
38 import org.eclipse.jface.text.contentassist.ContentAssistSubjectControlAdapter; // packageimport
39 import org.eclipse.jface.text.contentassist.CompletionProposalPopup; // packageimport
40 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension; // packageimport
41 import org.eclipse.jface.text.contentassist.IContextInformation; // packageimport
42 import org.eclipse.jface.text.contentassist.IContentAssistantExtension3; // packageimport
43 import org.eclipse.jface.text.contentassist.ContentAssistant; // packageimport
44 import org.eclipse.jface.text.contentassist.IContentAssistantExtension; // packageimport
45 import org.eclipse.jface.text.contentassist.JFaceTextMessages; // packageimport
46
47
48 import java.lang.all;
49 import java.util.Set;
50
51
52
53 import org.eclipse.swt.SWT;
54 import org.eclipse.swt.events.FocusEvent;
55 import org.eclipse.swt.events.FocusListener;
56 import org.eclipse.swt.events.SelectionEvent;
57 import org.eclipse.swt.events.SelectionListener;
58 import org.eclipse.swt.events.ShellAdapter;
59 import org.eclipse.swt.events.ShellEvent;
60 import org.eclipse.swt.widgets.Control;
61 import org.eclipse.swt.widgets.Display;
62 import org.eclipse.swt.widgets.Event;
63 import org.eclipse.swt.widgets.Listener;
64 import org.eclipse.swt.widgets.ScrollBar;
65 import org.eclipse.swt.widgets.Shell;
66 import org.eclipse.swt.widgets.Table;
67 import org.eclipse.jface.internal.text.DelayedInputChangeListener;
68 import org.eclipse.jface.internal.text.InformationControlReplacer;
69 import org.eclipse.jface.text.IDelayedInputChangeProvider;
70 import org.eclipse.jface.text.IInformationControl;
71 import org.eclipse.jface.text.IInformationControlExtension5;
72 import org.eclipse.jface.text.IInputChangedListener;
73
74
75 /**
76 * A generic closer class used to monitor various
77 * interface events in order to determine whether
78 * a content assistant should be terminated and all
79 * associated windows be closed.
80 */
81 class PopupCloser : ShellAdapter , FocusListener, SelectionListener, Listener {
82
83 /** The content assistant to be monitored. */
84 private ContentAssistant fContentAssistant;
85 /** The table of a selector popup opened by the content assistant. */
86 private Table fTable;
87 /** The scroll bar of the table for the selector popup. */
88 private ScrollBar fScrollbar;
89 /** Indicates whether the scroll bar thumb has been grabbed. */
90 private bool fScrollbarClicked= false;
91 /**
92 * The shell on which some listeners are registered.
93 * @since 3.1
94 */
95 private Shell fShell;
96 /**
97 * The display on which some filters are registered.
98 * @since 3.4
99 */
100 private Display fDisplay;
101 /**
102 * The additional info controller, or <code>null</code>.
103 * @since 3.4
104 */
105 private AdditionalInfoController fAdditionalInfoController;
106
107 /**
108 * Installs this closer on the given table opened by the given content assistant.
109 *
110 * @param contentAssistant the content assistant
111 * @param table the table to be tracked
112 */
113 public void install(ContentAssistant contentAssistant, Table table) {
114 install(contentAssistant, table, null);
115 }
116
117 /**
118 * Installs this closer on the given table opened by the given content assistant.
119 *
120 * @param contentAssistant the content assistant
121 * @param table the table to be tracked
122 * @param additionalInfoController the additional info controller, or <code>null</code>
123 * @since 3.4
124 */
125 public void install(ContentAssistant contentAssistant, Table table, AdditionalInfoController additionalInfoController) {
126 fContentAssistant= contentAssistant;
127 fTable= table;
128 fAdditionalInfoController= additionalInfoController;
129
130 if (Helper.okToUse(fTable)) {
131 fShell= fTable.getShell();
132 fDisplay= fShell.getDisplay();
133
134 fShell.addShellListener(this);
135 fTable.addFocusListener(this);
136 fScrollbar= fTable.getVerticalBar();
137 if (fScrollbar !is null)
138 fScrollbar.addSelectionListener(this);
139
140 fDisplay.addFilter(SWT.Activate, this);
141 fDisplay.addFilter(SWT.MouseWheel, this);
142
143 fDisplay.addFilter(SWT.Deactivate, this);
144
145 fDisplay.addFilter(SWT.MouseUp, this);
146 }
147 }
148
149 /**
150 * Uninstalls this closer if previously installed.
151 */
152 public void uninstall() {
153 fContentAssistant= null;
154 if (Helper.okToUse(fShell))
155 fShell.removeShellListener(this);
156 fShell= null;
157 if (Helper.okToUse(fScrollbar))
158 fScrollbar.removeSelectionListener(this);
159 if (Helper.okToUse(fTable))
160 fTable.removeFocusListener(this);
161 if (fDisplay !is null && ! fDisplay.isDisposed()) {
162 fDisplay.removeFilter(SWT.Activate, this);
163 fDisplay.removeFilter(SWT.MouseWheel, this);
164
165 fDisplay.removeFilter(SWT.Deactivate, this);
166
167 fDisplay.removeFilter(SWT.MouseUp, this);
168 }
169 }
170
171 /*
172 * @see org.eclipse.swt.events.SelectionListener#widgetSelected(org.eclipse.swt.events.SelectionEvent)
173 */
174 public void widgetSelected(SelectionEvent e) {
175 fScrollbarClicked= true;
176 }
177
178 /*
179 * @see org.eclipse.swt.events.SelectionListener#widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent)
180 */
181 public void widgetDefaultSelected(SelectionEvent e) {
182 fScrollbarClicked= true;
183 }
184
185 /*
186 * @see org.eclipse.swt.events.FocusListener#focusGained(org.eclipse.swt.events.FocusEvent)
187 */
188 public void focusGained(FocusEvent e) {
189 }
190
191 /*
192 * @see org.eclipse.swt.events.FocusListener#focusLost(org.eclipse.swt.events.FocusEvent)
193 */
194 public void focusLost(FocusEvent e) {
195 fScrollbarClicked= false;
196 Display d= fTable.getDisplay();
197 d.asyncExec(dgRunnable((FocusEvent e_) {
198 if (Helper.okToUse(fTable) && !fTable.isFocusControl() && !fScrollbarClicked && fContentAssistant !is null)
199 fContentAssistant.popupFocusLost(e_);
200 }, e ));
201 }
202
203 /*
204 * @see org.eclipse.swt.events.ShellAdapter#shellDeactivated(org.eclipse.swt.events.ShellEvent)
205 * @since 3.1
206 */
207 public void shellDeactivated(ShellEvent e) {
208 if (fContentAssistant !is null && ! fContentAssistant.hasProposalPopupFocus())
209 fContentAssistant.hide_package();
210 }
211
212
213 /*
214 * @see org.eclipse.swt.events.ShellAdapter#shellClosed(org.eclipse.swt.events.ShellEvent)
215 * @since 3.1
216 */
217 public void shellClosed(ShellEvent e) {
218 if (fContentAssistant !is null)
219 fContentAssistant.hide_package();
220 }
221
222 /*
223 * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
224 * @since 3.4
225 */
226 public void handleEvent(Event event) {
227 switch (event.type) {
228 case SWT.Activate:
229 case SWT.MouseWheel:
230 if (fAdditionalInfoController is null)
231 return;
232 if (event.widget is fShell || event.widget is fTable || event.widget is fScrollbar)
233 return;
234
235 if (fAdditionalInfoController.getInternalAccessor().getInformationControlReplacer() is null)
236 fAdditionalInfoController.hideInformationControl_package();
237 else if (!fAdditionalInfoController.getInternalAccessor().isReplaceInProgress()) {
238 IInformationControl infoControl= fAdditionalInfoController.getCurrentInformationControl2();
239 // During isReplaceInProgress(), events can come from the replacing information control
240 if (cast(Control)event.widget && cast(IInformationControlExtension5)infoControl ) {
241 Control control= cast(Control) event.widget;
242 IInformationControlExtension5 iControl5= cast(IInformationControlExtension5) infoControl;
243 if (!(iControl5.containsControl(control)))
244 fAdditionalInfoController.hideInformationControl_package();
245 else if (event.type is SWT.MouseWheel)
246 fAdditionalInfoController.getInternalAccessor().replaceInformationControl(false);
247 } else if (infoControl !is null && infoControl.isFocusControl()) {
248 fAdditionalInfoController.getInternalAccessor().replaceInformationControl(true);
249 }
250 }
251 break;
252
253 case SWT.MouseUp:
254 if (fAdditionalInfoController is null || fAdditionalInfoController.getInternalAccessor().isReplaceInProgress())
255 break;
256 if (cast(Control)event.widget) {
257 Control control= cast(Control) event.widget;
258 IInformationControl infoControl= fAdditionalInfoController.getCurrentInformationControl2();
259 if ( cast(IInformationControlExtension5)infoControl ) {
260 final IInformationControlExtension5 iControl5= cast(IInformationControlExtension5) infoControl;
261 if (iControl5.containsControl(control)) {
262 if ( cast(IDelayedInputChangeProvider)infoControl ) {
263 final IDelayedInputChangeProvider delayedICP= cast(IDelayedInputChangeProvider) infoControl;
264 final IInputChangedListener inputChangeListener= new DelayedInputChangeListener(delayedICP, fAdditionalInfoController.getInternalAccessor().getInformationControlReplacer());
265 delayedICP.setDelayedInputChangeListener(inputChangeListener);
266 // cancel automatic input updating after a small timeout:
267 control.getShell().getDisplay().timerExec(1000, new class() Runnable {
268 public void run() {
269 delayedICP.setDelayedInputChangeListener(null);
270 }
271 });
272 }
273
274 // XXX: workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=212392 :
275 control.getShell().getDisplay().asyncExec(new class() Runnable {
276 public void run() {
277 fAdditionalInfoController.getInternalAccessor().replaceInformationControl(true);
278 }
279 });
280 }
281 }
282 }
283 break;
284
285 case SWT.Deactivate:
286 if (fAdditionalInfoController is null)
287 break;
288 InformationControlReplacer replacer= fAdditionalInfoController.getInternalAccessor().getInformationControlReplacer();
289 if (replacer !is null && fContentAssistant !is null) {
290 IInformationControl iControl= replacer.getCurrentInformationControl2();
291 if (cast(Control)event.widget && cast(IInformationControlExtension5)iControl ) {
292 Control control= cast(Control) event.widget;
293 IInformationControlExtension5 iControl5= cast(IInformationControlExtension5) iControl;
294 if (iControl5.containsControl(control)) {
295 control.getDisplay().asyncExec(new class() Runnable {
296 public void run() {
297 if (fContentAssistant !is null && ! fContentAssistant.hasProposalPopupFocus())
298 fContentAssistant.hide_package();
299 }
300 });
301 }
302 }
303 }
304 break;
305 default:
306 }
307 }
308 }