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73005152 | 1 | /********************************************************************** |
df0b8ff4 | 2 | * Copyright (c) 2011, 2012 Ericsson |
73005152 BH |
3 | * |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * Bernd Hufmann - Initial API and implementation | |
11 | **********************************************************************/ | |
12 | package org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers; | |
13 | ||
14 | import java.util.HashSet; | |
15 | import java.util.List; | |
16 | import java.util.Set; | |
17 | import java.util.Vector; | |
18 | ||
19 | import org.eclipse.core.commands.AbstractHandler; | |
20 | import org.eclipse.core.commands.ExecutionEvent; | |
21 | import org.eclipse.core.commands.ExecutionException; | |
22 | import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDView; | |
23 | import org.eclipse.linuxtools.tmf.ui.views.uml2sd.util.SDMessages; | |
24 | import org.eclipse.ui.PlatformUI; | |
25 | import org.eclipse.ui.handlers.IHandlerActivation; | |
26 | import org.eclipse.ui.handlers.IHandlerService; | |
27 | ||
28 | /** | |
73005152 BH |
29 | * <p> |
30 | * Singleton class that manages key-bindings for certain commands across multiple sequence | |
31 | * diagram view instances. | |
32 | * </p> | |
df0b8ff4 BH |
33 | * |
34 | * @version 1.0 | |
35 | * @author Bernd Hufmann | |
36 | * | |
73005152 BH |
37 | */ |
38 | public class KeyBindingsManager { | |
39 | ||
40 | // ------------------------------------------------------------------------ | |
41 | // Attributes | |
42 | // ------------------------------------------------------------------------ | |
73005152 | 43 | |
df0b8ff4 BH |
44 | /** |
45 | * The singleton instance. | |
46 | */ | |
47 | private final static KeyBindingsManager fInstance = new KeyBindingsManager(); | |
48 | /** | |
49 | * The list of view names. | |
50 | */ | |
73005152 | 51 | private Set<String> fViews = new HashSet<String>(); |
df0b8ff4 BH |
52 | /** |
53 | * The list of activations Activations to store | |
54 | */ | |
73005152 | 55 | private List<IHandlerActivation> fHandlerActivations = new Vector<IHandlerActivation>(); |
df0b8ff4 BH |
56 | /** |
57 | * The action reference for moving to a message in view. | |
58 | */ | |
73005152 | 59 | private MoveToMessage fGoToMessageForKeyBinding; |
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60 | /** |
61 | * The action reference for opening the find dialog. | |
62 | */ | |
73005152 | 63 | private OpenSDFindDialog fFindForKeyBinding; |
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64 | /** |
65 | * The action reference for moving up in view. | |
66 | */ | |
73005152 | 67 | private MoveSDUp fMoveUpForKeyBinding; |
df0b8ff4 BH |
68 | /** |
69 | * The action reference for moving down in view. | |
70 | */ | |
73005152 | 71 | private MoveSDDown fMoveDownForKeyBinding; |
df0b8ff4 BH |
72 | /** |
73 | * The action reference for moving left in view. | |
74 | */ | |
73005152 | 75 | private MoveSDLeft fMoveLeftForKeyBinding; |
df0b8ff4 BH |
76 | /** |
77 | * The action reference for moving right in view. | |
78 | */ | |
73005152 | 79 | private MoveSDRight fMoveRightForKeyBinding; |
df0b8ff4 BH |
80 | /** |
81 | * The action reference for showing node start. | |
82 | */ | |
73005152 | 83 | private ShowNodeStart fShowNodeStartForKeyBinding; |
df0b8ff4 BH |
84 | /** |
85 | * The action reference for showing node end. | |
86 | */ | |
73005152 BH |
87 | private ShowNodeEnd fShowNodeEndForKeyBinding; |
88 | ||
89 | // ------------------------------------------------------------------------ | |
90 | // Constructor | |
91 | // ------------------------------------------------------------------------ | |
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92 | |
93 | /** | |
94 | * Private constructor | |
95 | */ | |
73005152 BH |
96 | private KeyBindingsManager() { |
97 | } | |
98 | ||
99 | // ------------------------------------------------------------------------ | |
df0b8ff4 | 100 | // Methods |
73005152 | 101 | // ------------------------------------------------------------------------ |
df0b8ff4 BH |
102 | /** |
103 | * Returns the KeyBindingsManager singleton instance. | |
104 | * | |
105 | * @return the KeyBindingsManager singleton instance | |
106 | */ | |
107 | public synchronized static KeyBindingsManager getInstance() { | |
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108 | return fInstance; |
109 | } | |
110 | ||
111 | /** | |
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112 | * Adds a view list of managed view list. |
113 | * | |
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114 | * @param viewId Id of SD view to add and to manage |
115 | */ | |
116 | public void add(String viewId) { | |
117 | ||
118 | if (fViews.size() == 0) { | |
119 | initialize(); | |
120 | } | |
121 | ||
122 | if(!fViews.contains(viewId)) { | |
123 | fViews.add(viewId); | |
124 | } | |
125 | } | |
126 | ||
127 | /** | |
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128 | * Removes a view from managed view list |
129 | * | |
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130 | * @param viewId Id of SD view to remove |
131 | */ | |
132 | public void remove(String viewId) { | |
133 | if (fViews.contains(viewId)) { | |
134 | fViews.remove(viewId); | |
135 | } | |
136 | if (fViews.size() == 0) { | |
137 | dispose(); | |
138 | } | |
139 | } | |
140 | ||
df0b8ff4 BH |
141 | /* |
142 | * Initialized the KeyBindingsManager. | |
143 | */ | |
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144 | private void initialize() { |
145 | fGoToMessageForKeyBinding = new MoveToMessage(); | |
146 | IHandlerService service = (IHandlerService) PlatformUI.getWorkbench().getActiveWorkbenchWindow().getService(IHandlerService.class); | |
147 | AbstractHandler handler = new AbstractHandler() { | |
148 | @Override | |
149 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
150 | fGoToMessageForKeyBinding.run(); | |
151 | return null; | |
152 | } | |
153 | }; | |
154 | IHandlerActivation activation = service.activateHandler(fGoToMessageForKeyBinding.getActionDefinitionId(), handler); | |
155 | fHandlerActivations.add(activation); | |
156 | ||
157 | fMoveUpForKeyBinding = new MoveSDUp(); | |
158 | handler = new AbstractHandler() { | |
159 | @Override | |
160 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
161 | fMoveUpForKeyBinding.run(); | |
162 | return null; | |
163 | } | |
164 | }; | |
165 | activation = service.activateHandler(fMoveUpForKeyBinding.getActionDefinitionId(), handler); | |
166 | fHandlerActivations.add(activation); | |
167 | ||
168 | fMoveDownForKeyBinding = new MoveSDDown(); | |
169 | handler = new AbstractHandler() { | |
170 | @Override | |
171 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
172 | fMoveDownForKeyBinding.run(); | |
173 | return null; | |
174 | } | |
175 | }; | |
176 | activation = service.activateHandler(fMoveDownForKeyBinding.getActionDefinitionId(), handler); | |
177 | fHandlerActivations.add(activation); | |
178 | ||
179 | fMoveLeftForKeyBinding = new MoveSDLeft(); | |
180 | handler = new AbstractHandler() { | |
181 | @Override | |
182 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
183 | fMoveLeftForKeyBinding.run(); | |
184 | return null; | |
185 | } | |
186 | }; | |
187 | activation = service.activateHandler(fMoveLeftForKeyBinding.getActionDefinitionId(), handler); | |
188 | fHandlerActivations.add(activation); | |
189 | ||
190 | fMoveRightForKeyBinding = new MoveSDRight(); | |
191 | handler = new AbstractHandler() { | |
192 | @Override | |
193 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
194 | fMoveRightForKeyBinding.run(); | |
195 | return null; | |
196 | } | |
197 | }; | |
198 | activation = service.activateHandler(fMoveRightForKeyBinding.getActionDefinitionId(), handler); | |
199 | fHandlerActivations.add(activation); | |
200 | ||
201 | fFindForKeyBinding = new OpenSDFindDialog(); | |
202 | handler = new AbstractHandler() { | |
203 | @Override | |
204 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
205 | fFindForKeyBinding.run(); | |
206 | return null; | |
207 | } | |
208 | }; | |
209 | activation = service.activateHandler(fFindForKeyBinding.getActionDefinitionId(), handler); | |
210 | fFindForKeyBinding.setEnabled(false); | |
211 | fHandlerActivations.add(activation); | |
212 | ||
213 | fShowNodeStartForKeyBinding = new ShowNodeStart(); | |
214 | fShowNodeStartForKeyBinding.setText(SDMessages.uml_25); | |
215 | ||
216 | fShowNodeStartForKeyBinding.setId("org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.ShowNodeStart");//$NON-NLS-1$ | |
217 | fShowNodeStartForKeyBinding.setActionDefinitionId("org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.ShowNodeStart");//$NON-NLS-1$ | |
218 | ||
219 | handler = new AbstractHandler() { | |
220 | @Override | |
221 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
222 | fShowNodeStartForKeyBinding.run(); | |
223 | return null; | |
224 | } | |
225 | }; | |
226 | activation = service.activateHandler(fShowNodeStartForKeyBinding.getActionDefinitionId(), handler); | |
227 | fHandlerActivations.add(activation); | |
228 | ||
229 | fShowNodeEndForKeyBinding = new ShowNodeEnd(); | |
230 | fShowNodeEndForKeyBinding.setText(SDMessages.uml_23); | |
231 | fShowNodeEndForKeyBinding.setId("org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.ShowNodeEnd");//$NON-NLS-1$ | |
232 | fShowNodeEndForKeyBinding.setActionDefinitionId("org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.ShowNodeEnd");//$NON-NLS-1$ | |
233 | ||
234 | handler = new AbstractHandler() { | |
235 | @Override | |
236 | public Object execute(ExecutionEvent event) throws ExecutionException { | |
237 | fShowNodeEndForKeyBinding.run(); | |
238 | return null; | |
239 | } | |
240 | }; | |
241 | activation = service.activateHandler(fShowNodeEndForKeyBinding.getActionDefinitionId(), handler); | |
242 | fHandlerActivations.add(activation); | |
243 | ||
244 | } | |
245 | ||
df0b8ff4 BH |
246 | /* |
247 | * Disposes the KeyBindingsManager | |
248 | */ | |
73005152 BH |
249 | private void dispose() { |
250 | IHandlerService service = (IHandlerService) PlatformUI.getWorkbench().getActiveWorkbenchWindow().getService(IHandlerService.class); | |
251 | for(IHandlerActivation activation : fHandlerActivations) { | |
252 | service.deactivateHandler(activation); | |
253 | } | |
254 | ||
255 | fGoToMessageForKeyBinding = null; | |
256 | fFindForKeyBinding = null; | |
257 | fMoveUpForKeyBinding = null; | |
258 | fMoveDownForKeyBinding = null; | |
259 | fMoveLeftForKeyBinding = null; | |
260 | fMoveRightForKeyBinding = null; | |
261 | fShowNodeStartForKeyBinding = null; | |
262 | fShowNodeEndForKeyBinding = null; | |
263 | } | |
264 | ||
265 | /** | |
df0b8ff4 BH |
266 | * Set the view in all supported actions |
267 | * | |
73005152 BH |
268 | * @param view to set in global actions |
269 | */ | |
270 | public void setSdView(SDView view) { | |
271 | if (fViews.size() > 0) { | |
272 | fGoToMessageForKeyBinding.setView(view); | |
273 | fFindForKeyBinding.setView(view); | |
274 | fMoveUpForKeyBinding.setView(view); | |
275 | fMoveDownForKeyBinding.setView(view); | |
276 | fMoveLeftForKeyBinding.setView(view); | |
277 | fMoveRightForKeyBinding.setView(view); | |
278 | fShowNodeStartForKeyBinding.setView(view); | |
279 | fShowNodeEndForKeyBinding.setView(view); | |
280 | } | |
281 | } | |
282 | ||
283 | /** | |
284 | * Enable / disable find action | |
df0b8ff4 BH |
285 | * |
286 | * @param enabled <code>true</code> for enabling else <code>false</code> | |
73005152 BH |
287 | */ |
288 | public void setFindEnabled(boolean enabled) { | |
289 | if (fFindForKeyBinding != null) { | |
290 | fFindForKeyBinding.setEnabled(enabled); | |
291 | } | |
292 | } | |
293 | } |