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11 package org.eclipse.search.internal.ui;
12
13 import java.util.HashMap  ;
14 import java.util.Iterator ;
15 import java.util.Map ;
16
17 import org.eclipse.swt.custom.BusyIndicator;
18 import org.eclipse.swt.widgets.Control;
19 import org.eclipse.swt.widgets.Menu;
20
21 import org.eclipse.jface.action.Action;
22 import org.eclipse.jface.action.ActionContributionItem;
23 import org.eclipse.jface.action.IMenuCreator;
24 import org.eclipse.jface.viewers.ViewerSorter;
25
26 import org.eclipse.ui.IMemento;
27 import org.eclipse.ui.model.WorkbenchViewerSorter;
28
29
33 class SortDropDownAction extends Action implements IMenuCreator {
34
35 private static final String TAG_SORTERS= "sorters"; private static final String TAG_DEFAULT_SORTERS= "defaultSorters"; private static final String TAG_ELEMENT= "element"; private static final String TAG_PAGE_ID= "pageId"; private static final String TAG_SORTER_ID= "sorterId";
42 private static Map fgLastCheckedForType= new HashMap (5);
43
44 private SearchResultViewer fViewer;
45 private String fPageId;
46 private Menu fMenu;
47 private Map fLastCheckedForType;
48
49 public SortDropDownAction(SearchResultViewer viewer) {
50 super(SearchMessages.SortDropDownAction_label);
51 SearchPluginImages.setImageDescriptors(this, SearchPluginImages.T_LCL, SearchPluginImages.IMG_LCL_SEARCH_SORT);
52 fViewer= viewer;
53 setToolTipText(SearchMessages.SortDropDownAction_tooltip);
54 setMenuCreator(this);
55 fLastCheckedForType= new HashMap (5);
56 }
57
58 public void dispose() {
59 if (fMenu != null && !fMenu.isDisposed())
60 fMenu.dispose();
61 fMenu= null;
62 }
63
64 public Menu getMenu(Control parent) {
65 return null;
66 }
67
68 void setPageId(String pageId) {
69 fPageId= pageId;
70 SorterDescriptor sorterDesc= (SorterDescriptor)fLastCheckedForType.get(pageId);
71 if (sorterDesc == null)
72 sorterDesc= (SorterDescriptor)fgLastCheckedForType.get(pageId);
73 if (sorterDesc == null)
74 sorterDesc= findSorter(fPageId);
75 if (sorterDesc != null) {
76 setChecked(sorterDesc);
77 fViewer.setSorter(sorterDesc.createObject());
78 } else {
79 fViewer.setSorter(new WorkbenchViewerSorter());
81 }
82 }
83
84 public Menu getMenu(final Menu parent) {
85 dispose();
87 fMenu= new Menu(parent);
88
89 Iterator iter= SearchPlugin.getDefault().getSorterDescriptors().iterator();
90 while (iter.hasNext()) {
91 Object value= fLastCheckedForType.get(fPageId);
92 final String checkedId;
93 if (value instanceof SorterDescriptor)
94 checkedId= ((SorterDescriptor)value).getId();
95 else
96 checkedId= "";
98 final SorterDescriptor sorterDesc= (SorterDescriptor) iter.next();
99 if (!sorterDesc.getPageId().equals(fPageId) && !sorterDesc.getPageId().equals("*")) continue;
101 final ViewerSorter sorter= sorterDesc.createObject();
102 if (sorter != null) {
103 final Action action= new Action() {
104 public void run() {
105 if (!checkedId.equals(sorterDesc.getId())) {
106 SortDropDownAction.this.setChecked(sorterDesc);
107 BusyIndicator.showWhile(parent.getDisplay(), new Runnable () {
108 public void run() {
109 fViewer.setSorter(sorter);
110 }
111 });
112 }
113 }
114 };
115 action.setText(sorterDesc.getLabel());
116 action.setImageDescriptor(sorterDesc.getImage());
117 action.setToolTipText(sorterDesc.getToolTipText());
118 action.setChecked(checkedId.equals(sorterDesc.getId()));
119 addActionToMenu(fMenu, action);
120 }
121 }
122 return fMenu;
123 }
124
125 protected void addActionToMenu(Menu parent, Action action) {
126 ActionContributionItem item= new ActionContributionItem(action);
127 item.fill(parent, -1);
128 }
129
130 public void run() {
131 }
133
134 private SorterDescriptor findSorter(String pageId) {
135 Iterator iter= SearchPlugin.getDefault().getSorterDescriptors().iterator();
136 while (iter.hasNext()) {
137 SorterDescriptor sorterDesc= (SorterDescriptor)iter.next();
138 if (sorterDesc.getPageId().equals(pageId) || sorterDesc.getPageId().equals("*")) return sorterDesc;
140 }
141 return null;
142 }
143
144 private SorterDescriptor getSorter(String sorterId) {
145 Iterator iter= SearchPlugin.getDefault().getSorterDescriptors().iterator();
146 while (iter.hasNext()) {
147 SorterDescriptor sorterDesc= (SorterDescriptor)iter.next();
148 if (sorterDesc.getId().equals(sorterId))
149 return sorterDesc;
150 }
151 return null;
152 }
153
154 private void setChecked(SorterDescriptor sorterDesc) {
155 fLastCheckedForType.put(fPageId, sorterDesc);
156 fgLastCheckedForType.put(fPageId, sorterDesc);
157 }
158
159
162 SortDropDownAction renew() {
163 SortDropDownAction action= new SortDropDownAction(fViewer);
164 action.fLastCheckedForType= fLastCheckedForType;
165 action.fPageId= fPageId;
166 dispose();
167 return action;
168 }
169
170
172 void restoreState(IMemento memento) {
173 if (fLastCheckedForType.isEmpty())
174 restoreState(memento, fLastCheckedForType, TAG_SORTERS);
175 if (fgLastCheckedForType.isEmpty())
176 restoreState(memento, fgLastCheckedForType, TAG_DEFAULT_SORTERS);
177 }
178
179 private void restoreState(IMemento memento, Map map, String mapName) {
180 memento= memento.getChild(mapName);
181 if (memento == null)
182 return;
183 IMemento[] mementoElements= memento.getChildren(TAG_ELEMENT);
184 for (int i= 0; i < mementoElements.length; i++) {
185 String pageId= mementoElements[i].getString(TAG_PAGE_ID);
186 String sorterId= mementoElements[i].getString(TAG_SORTER_ID);
187 SorterDescriptor sorterDesc= getSorter(sorterId);
188 if (sorterDesc != null)
189 map.put(pageId, sorterDesc);
190 }
191 }
192
193 void saveState(IMemento memento) {
194 saveState(memento, fgLastCheckedForType, TAG_DEFAULT_SORTERS);
195 saveState(memento, fLastCheckedForType, TAG_SORTERS);
196 }
197
198 private void saveState(IMemento memento, Map map, String mapName) {
199 Iterator iter= map.entrySet().iterator();
200 memento= memento.createChild(mapName);
201 while (iter.hasNext()) {
202 IMemento mementoElement= memento.createChild(TAG_ELEMENT);
203 Map.Entry entry= (Map.Entry )iter.next();
204 mementoElement.putString(TAG_PAGE_ID, (String )entry.getKey());
205 mementoElement.putString(TAG_SORTER_ID, ((SorterDescriptor)entry.getValue()).getId());
206 }
207 }
208
209 int getSorterCount() {
210 int count= 0;
211 Iterator iter= SearchPlugin.getDefault().getSorterDescriptors().iterator();
212 while (iter.hasNext()) {
213 SorterDescriptor sorterDesc= (SorterDescriptor)iter.next();
214 if (sorterDesc.getPageId().equals(fPageId) || sorterDesc.getPageId().equals("*")) count++;
216 }
217 return count;
218 }
219 }
220 |
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