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Diff Revisions 949 vs 950 for /trunk/GWT_Sandbox/Prioritizer/src/org/litesoft/prioritizer/client/ui/views/stories/AbstractPrioritizeScreenView.java

Diff revisions: vs.
  @@ -1,368 +1,368 @@
1 - package org.litesoft.prioritizer.client.ui.views.stories;
2 -
3 - import org.litesoft.GWT.client.*;
4 - import org.litesoft.GWT.client.view.*;
5 - import org.litesoft.GWT.client.widgets.Button;
6 - import org.litesoft.GWT.client.widgets.*;
7 - import org.litesoft.GWT.client.widgets.datatables.*;
8 - import org.litesoft.GWT.forms.client.*;
9 - import org.litesoft.bo.views.*;
10 - import org.litesoft.commonfoundation.typeutils.*;
11 - import org.litesoft.core.util.*;
12 - import org.litesoft.prioritizer.client.boviews.*;
13 - import org.litesoft.prioritizer.client.support.*;
14 - import org.litesoft.uispecification.*;
15 -
16 - import com.google.gwt.core.client.*;
17 - import com.google.gwt.event.dom.client.*;
18 - import com.google.gwt.event.logical.shared.*;
19 - import com.google.gwt.user.client.*;
20 - import com.google.gwt.user.client.ui.*;
21 -
22 - import java.util.*;
23 -
24 - public abstract class AbstractPrioritizeScreenView extends ScreenView implements StoryViewNames,
25 - SimpleDataProviderCallBack,
26 - DataAvailableCallBack<StoryView> {
27 - protected final String mWhat;
28 - protected final StoryViewDataProvider mDP = StoryViewDataProvider.getInstance();
29 - protected final ListTableModel<StoryView> mTableModel = new ListTableModel<StoryView>();
30 - protected final CheckBoxSelectRegularTable<StoryView> mTable;
31 - protected final MoveControlPanel mMoveControlPanel;
32 - private Set<StoryView> mSavedSelectedValues = null;
33 -
34 - private Integer mTopRowOffset = null;
35 -
36 - @Override
37 - protected UriFragmentIdParams createRefreshParams() {
38 - return ReprioritizeFactory.encodeParams( mTopRowOffset );
39 - }
40 -
41 - public AbstractPrioritizeScreenView( String pSection, ViewDef pViewDef, String pWhat, boolean pAddUpDown, BoTableDefinition<StoryView> pTableDef,
42 - Integer pTopRowOffset ) {
43 - super( title( pSection, pViewDef ) );
44 -
45 - mTopRowOffset = pTopRowOffset;
46 -
47 - mWhat = pWhat;
48 -
49 - addRight( Button.named( "Refresh" ).blue().text().add( new ClickHandler() {
50 - @Override
51 - public void onClick( ClickEvent event ) {
52 - fetchRows();
53 - }
54 - } ).create() );
55 - addStandardTitleBar();
56 -
57 - addSectionTitle( mWhat );
58 -
59 - mMoveControlPanel = new MoveControlPanel( pAddUpDown );
60 - mTable = new CheckBoxSelectRegularTable<StoryView>( mTableModel, pTableDef, mMoveControlPanel );
61 -
62 - SizeableHorizontalPanel zPanel = new SizeableHorizontalPanel().stretchable();
63 - zPanel.add( mTable );
64 - zPanel.add( mMoveControlPanel );
65 - add( zPanel );
66 - }
67 -
68 - @Override
69 - protected void justLoaded() {
70 - super.justLoaded();
71 - fetchRows();
72 - }
73 -
74 - abstract protected void fetchRows();
75 -
76 - protected FetchRowsDataProviderCallBack<StoryView> createFetchRowsCallBack() {
77 - return new FetchRowsDataProviderCallBack<StoryView>() {
78 - @Override
79 - public void tooMany( long pCount ) {
80 - systemError( "System Error: Should not happen", //
81 - "Found " + pCount + " " + mWhat + ".", //
82 - "This is more than the application is willing to display." );
83 - }
84 -
85 - @Override
86 - public void error( String pError ) {
87 - systemError( "Requesting " + mWhat + " - Errored", //
88 - "", //
89 - "Error: " + pError );
90 - }
91 -
92 - @Override
93 - public void success( ImmutableArrayList<StoryView> pRows ) {
94 - if ( pRows.isEmpty() ) {
95 - backToHome( "Nothing to " + mWhat );
96 - return;
97 - }
98 - mTableModel.clear();
99 - mTableModel.addAll( pRows );
100 - Collections.sort( mTableModel );
101 - mTable.loadData();
102 - mTable.deselectAll();
103 - mMoveControlPanel.handleButtons( reselectAll() );
104 - }
105 -
106 - private Set<StoryView> reselectAll() {
107 - boolean zFound = false;
108 - if ( mSavedSelectedValues != null ) {
109 - for ( StoryView zValue : mSavedSelectedValues ) {
110 - if ( mTable.selectRow( zValue ) ) {
111 - zFound = true;
112 - }
113 - }
114 - mSavedSelectedValues = null;
115 - }
116 - return zFound ? mTable.getSelectedValues() : null;
117 - }
118 - };
119 - }
120 -
121 - @Override
122 - public void error( String pError ) {
123 - if ( Strings.isNotNullOrEmpty( pError ) ) {
124 - systemError( "Requested Prioritizing - Errored", //
125 - "", //
126 - "Error: " + pError );
127 - } else {
128 - fetchRows();
129 - }
130 - }
131 -
132 - @Override
133 - public Widget getBottomBar() {
134 - return null;
135 - }
136 -
137 - protected static class TableDef extends BoTableDefinition<StoryView> implements StoryViewNames,
138 - DataTableStyle {
139 - public TableDef() {
140 - StoryViewMetaData zMD = StoryViewMetaData.getInstance();
141 -
142 - addColumn( zMD.getBoAttribute( aName ) ); // .initialWidth( FontSizer.get( TABLE_TEXT ).EMsPlus( 20, CELL_PADDING ) );
143 - addColumn( zMD.getBoAttribute( aDescriptionThreeLines ), "Description" ); // .initialWidth( FontSizer.get( TABLE_TEXT ).EMsPlus( 40, CELL_PADDING ) );
144 - }
145 - }
146 -
147 - private class MoveControlPanel extends VerticalPanel implements SelectionHandler<StoryView> {
148 - private final Button mBetweenButton, mUpButton, mDownButton;
149 - private final List<GroupMover> mGroupMovers = new ArrayList<GroupMover>();
150 -
151 - private MoveControlPanel( boolean pAddUpDown ) {
152 - mBetweenButton = Button.named( "Between" ).blue().text( "To There" ).add( new ClickHandler() {
153 - @Override
154 - public void onClick( ClickEvent event ) {
155 - reprioritizeBetween();
156 - }
157 - } ).create().disable();
158 - mUpButton = Button.named( "Up" ).blue().text().add( new ClickHandler() {
159 - @Override
160 - public void onClick( ClickEvent event ) {
161 - reprioritizeUp();
162 - }
163 - } ).create().disable();
164 - mDownButton = Button.named( "Down" ).blue().text().add( new ClickHandler() {
165 - @Override
166 - public void onClick( ClickEvent event ) {
167 - reprioritizeDown();
168 - }
169 - } ).create().disable();
170 -
171 - setHorizontalAlignment( VerticalPanel.ALIGN_CENTER );
172 - add( new Label( "Move..." ) );
173 - add( new Spacer( 20 ) );
174 - add( mBetweenButton );
175 - add( new Spacer( 20 ) );
176 - PriorityGroup[] zGroups = PriorityGroup.values();
177 - for ( int i = zGroups.length; --i >= 0; ) {
178 - PriorityGroup zGroup = zGroups[i];
179 - if ( PriorityGroup.Initial != zGroup ) {
180 - GroupMover zMover = new GroupMover( zGroup );
181 - mGroupMovers.add( zMover );
182 - add( zMover.getButton() );
183 - }
184 - }
185 - add( new Spacer( 20 ) );
186 - if ( pAddUpDown ) {
187 - add( mUpButton );
188 - add( mDownButton );
189 - }
190 - }
191 -
192 - @Override
193 - protected void onAttach() {
194 - super.onAttach();
195 - sameSizeButtons();
196 - }
197 -
198 - private void sameSizeButtons() {
199 - if ( isAttached() ) {
200 - Integer zMaxWidth = getMaxControlButtonWidth();
201 - if ( zMaxWidth != null ) {
202 - setControlButtonSameWidth( zMaxWidth );
203 - return;
204 - }
205 - }
206 - Scheduler.get().scheduleDeferred( new Command() {
207 - @Override
208 - public void execute() {
209 - sameSizeButtons();
210 - }
211 - } );
212 - }
213 -
214 - private Integer getMaxControlButtonWidth() {
215 - int zMaxWidth = mBetweenButton.getOffsetWidth();
216 - for ( Widget zWidget : getChildren() ) {
217 - if ( zWidget instanceof Button ) {
218 - zMaxWidth = Math.max( zMaxWidth, zWidget.getOffsetWidth() );
219 - }
220 - }
221 - return (zMaxWidth > 30) ? zMaxWidth : null;
222 - }
223 -
224 - private void setControlButtonSameWidth( int pWidth ) {
225 - String zWidth = "" + pWidth;
226 - for ( Widget zWidget : getChildren() ) {
227 - if ( zWidget instanceof Button ) {
228 - zWidget.setWidth( zWidth );
229 - }
230 - }
231 - }
232 -
233 - @Override
234 - public void onSelection( SelectionEvent<StoryView> event ) {
235 - handleButtons( mTable.getSelectedValues() );
236 - }
237 -
238 - private void handleButtons( Set<StoryView> pSelectedValues ) {
239 - boolean zAnySelected = (pSelectedValues != null) && !pSelectedValues.isEmpty();
240 - mBetweenButton.setEnabled( zAnySelected && betweenable( pSelectedValues ) );
241 - mUpButton.setEnabled( zAnySelected && upable( pSelectedValues ) );
242 - mDownButton.setEnabled( zAnySelected && downable( pSelectedValues ) );
243 - for ( GroupMover zMover : mGroupMovers ) {
244 - zMover.setEnable( zAnySelected, pSelectedValues );
245 - }
246 - }
247 - }
248 -
249 - private class GroupMover implements ClickHandler {
250 - private PriorityGroup mGroup;
251 - private Button mButton;
252 -
253 - private GroupMover( PriorityGroup pGroup ) {
254 - mGroup = pGroup;
255 - mButton = Button.named( mGroup.name() ).blue().text().add( this ).create().disable();
256 - }
257 -
258 - public Button getButton() {
259 - return mButton;
260 - }
261 -
262 - @Override
263 - public void onClick( ClickEvent event ) {
264 - reprioritizeToGroup( mGroup );
265 - }
266 -
267 - public void setEnable( boolean pAnySelected, Set<StoryView> pSelectedValues ) {
268 - mButton.setEnabled( pAnySelected && applicable( pSelectedValues ) );
269 - }
270 -
271 - private boolean applicable( Set<StoryView> pSelectedValues ) {
272 - for ( StoryView zStoryView : pSelectedValues ) {
273 - if ( mGroup != PriorityGroup.from( zStoryView.getPriority() ) ) {
274 - return true;
275 - }
276 - }
277 - return false;
278 - }
279 - }
280 -
281 - abstract protected boolean betweenable( Set<StoryView> pSelectedValues );
282 -
283 - protected boolean upable( Set<StoryView> pSelectedValues ) {
284 - return !isAtEdge( pSelectedValues, 0 );
285 - }
286 -
287 - protected boolean downable( Set<StoryView> pSelectedValues ) {
288 - return !isAtEdge( pSelectedValues, mTableModel.size() - 1 );
289 - }
290 -
291 - protected boolean isAtEdge( Set<StoryView> pSelectedValues, int pEdge ) {
292 - for ( StoryView zStoryView : pSelectedValues ) {
293 - if ( mTableModel.indexOf( zStoryView ) == pEdge ) {
294 - return true;
295 - }
296 - }
297 - return false;
298 - }
299 -
300 - private void reprioritizeUp() {
301 - int zMin = mTableModel.size();
302 - for ( StoryView zStoryView : mTable.getSelectedValues() ) {
303 - zMin = Math.min( zMin, mTableModel.indexOf( zStoryView ) );
304 - }
305 - if ( zMin != mTableModel.size() ) {
306 - reprioritizeBetween( mSavedSelectedValues = mTable.getSelectedValues(), getStoryView( zMin - 1 ), getStoryView( zMin - 2 ) );
307 - }
308 - }
309 -
310 - private void reprioritizeDown() {
311 - int zMax = -1;
312 - for ( StoryView zStoryView : mTable.getSelectedValues() ) {
313 - zMax = Math.max( zMax, mTableModel.indexOf( zStoryView ) );
314 - }
315 - if ( zMax != -1 ) {
316 - reprioritizeBetween( mSavedSelectedValues = mTable.getSelectedValues(), getStoryView( zMax + 2 ), getStoryView( zMax + 1 ) );
317 - }
318 - }
319 -
320 - private void reprioritizeBetween( StoryView pLowerBound, StoryView pUpperBound ) {
321 - reprioritizeBetween( mTable.getSelectedValues(), pLowerBound, pUpperBound );
322 - }
323 -
324 - private void reprioritizeBetween( Set<StoryView> pSelectedValues, StoryView pLowerBound, StoryView pUpperBound ) {
325 - mDP.reprioritizeBetween( pLowerBound, pUpperBound, pSelectedValues, this );
326 - }
327 -
328 - private void reprioritizeToGroup( PriorityGroup pGroup ) {
329 - mDP.reprioritizeToGroup( pGroup, mTable.getSelectedValues(), this );
330 - }
331 -
332 - private StoryView getStoryView( int pIndex ) {
333 - return ((0 <= pIndex) && (pIndex < mTableModel.size())) ? mTableModel.get( pIndex ) : null;
334 - }
335 -
336 - abstract protected void fetchTargetBetweenRows( final DataAvailableCallBack<StoryView> pCallBack );
337 -
338 - private void reprioritizeBetween() {
339 - fetchTargetBetweenRows( this );
340 - }
341 -
342 - @Override
343 - public void dataAvailable( List<StoryView> pData ) // called when we can proceed with the InjectionPointSelector
344 - {
345 - if ( pData.isEmpty() ) {
346 - error( "There are Nothing but " + PriorityGroup.Initial + " priority Stories" );
347 - return;
348 - }
349 - Set<StoryView> zSelectedRows = mTable.getSelectedValues();
350 - List<StoryView> zNonSelectedRows = new ArrayList<StoryView>( pData.size() );
351 - for ( StoryView zStoryView : pData ) {
352 - if ( !zSelectedRows.contains( zStoryView ) ) {
353 - zNonSelectedRows.add( zStoryView );
354 - }
355 - }
356 - if ( zNonSelectedRows.isEmpty() ) {
357 - error( "At least one Story must not be selected" );
358 - return;
359 - }
360 - new InjectionPointSelectionDialog<StoryView>( "Select 'There' to Move Selected Rows", 4, zNonSelectedRows,
361 - new InjectionPointSelector.Callback<StoryView>() {
362 - @Override
363 - public void injectBetween( StoryView pLowerBound, StoryView pUpperBound ) {
364 - reprioritizeBetween( pLowerBound, pUpperBound );
365 - }
366 - } ).show();
367 - }
368 - }
1 + package org.litesoft.prioritizer.client.ui.views.stories;
2 +
3 + import org.litesoft.GWT.client.*;
4 + import org.litesoft.GWT.client.view.*;
5 + import org.litesoft.GWT.client.widgets.Button;
6 + import org.litesoft.GWT.client.widgets.*;
7 + import org.litesoft.GWT.client.widgets.datatables.*;
8 + import org.litesoft.GWT.forms.client.*;
9 + import org.litesoft.bo.views.*;
10 + import org.litesoft.commonfoundation.base.*;
11 + import org.litesoft.core.util.*;
12 + import org.litesoft.prioritizer.client.boviews.*;
13 + import org.litesoft.prioritizer.client.support.*;
14 + import org.litesoft.uispecification.*;
15 +
16 + import com.google.gwt.core.client.*;
17 + import com.google.gwt.event.dom.client.*;
18 + import com.google.gwt.event.logical.shared.*;
19 + import com.google.gwt.user.client.*;
20 + import com.google.gwt.user.client.ui.*;
21 +
22 + import java.util.*;
23 +
24 + public abstract class AbstractPrioritizeScreenView extends ScreenView implements StoryViewNames,
25 + SimpleDataProviderCallBack,
26 + DataAvailableCallBack<StoryView> {
27 + protected final String mWhat;
28 + protected final StoryViewDataProvider mDP = StoryViewDataProvider.getInstance();
29 + protected final ListTableModel<StoryView> mTableModel = new ListTableModel<StoryView>();
30 + protected final CheckBoxSelectRegularTable<StoryView> mTable;
31 + protected final MoveControlPanel mMoveControlPanel;
32 + private Set<StoryView> mSavedSelectedValues = null;
33 +
34 + private Integer mTopRowOffset = null;
35 +
36 + @Override
37 + protected UriFragmentIdParams createRefreshParams() {
38 + return ReprioritizeFactory.encodeParams( mTopRowOffset );
39 + }
40 +
41 + public AbstractPrioritizeScreenView( String pSection, ViewDef pViewDef, String pWhat, boolean pAddUpDown, BoTableDefinition<StoryView> pTableDef,
42 + Integer pTopRowOffset ) {
43 + super( title( pSection, pViewDef ) );
44 +
45 + mTopRowOffset = pTopRowOffset;
46 +
47 + mWhat = pWhat;
48 +
49 + addRight( Button.named( "Refresh" ).blue().text().add( new ClickHandler() {
50 + @Override
51 + public void onClick( ClickEvent event ) {
52 + fetchRows();
53 + }
54 + } ).create() );
55 + addStandardTitleBar();
56 +
57 + addSectionTitle( mWhat );
58 +
59 + mMoveControlPanel = new MoveControlPanel( pAddUpDown );
60 + mTable = new CheckBoxSelectRegularTable<StoryView>( mTableModel, pTableDef, mMoveControlPanel );
61 +
62 + SizeableHorizontalPanel zPanel = new SizeableHorizontalPanel().stretchable();
63 + zPanel.add( mTable );
64 + zPanel.add( mMoveControlPanel );
65 + add( zPanel );
66 + }
67 +
68 + @Override
69 + protected void justLoaded() {
70 + super.justLoaded();
71 + fetchRows();
72 + }
73 +
74 + abstract protected void fetchRows();
75 +
76 + protected FetchRowsDataProviderCallBack<StoryView> createFetchRowsCallBack() {
77 + return new FetchRowsDataProviderCallBack<StoryView>() {
78 + @Override
79 + public void tooMany( long pCount ) {
80 + systemError( "System Error: Should not happen", //
81 + "Found " + pCount + " " + mWhat + ".", //
82 + "This is more than the application is willing to display." );
83 + }
84 +
85 + @Override
86 + public void error( String pError ) {
87 + systemError( "Requesting " + mWhat + " - Errored", //
88 + "", //
89 + "Error: " + pError );
90 + }
91 +
92 + @Override
93 + public void success( ImmutableArrayList<StoryView> pRows ) {
94 + if ( pRows.isEmpty() ) {
95 + backToHome( "Nothing to " + mWhat );
96 + return;
97 + }
98 + mTableModel.clear();
99 + mTableModel.addAll( pRows );
100 + Collections.sort( mTableModel );
101 + mTable.loadData();
102 + mTable.deselectAll();
103 + mMoveControlPanel.handleButtons( reselectAll() );
104 + }
105 +
106 + private Set<StoryView> reselectAll() {
107 + boolean zFound = false;
108 + if ( mSavedSelectedValues != null ) {
109 + for ( StoryView zValue : mSavedSelectedValues ) {
110 + if ( mTable.selectRow( zValue ) ) {
111 + zFound = true;
112 + }
113 + }
114 + mSavedSelectedValues = null;
115 + }
116 + return zFound ? mTable.getSelectedValues() : null;
117 + }
118 + };
119 + }
120 +
121 + @Override
122 + public void error( String pError ) {
123 + if ( Currently.isNotNullOrEmpty( pError ) ) {
124 + systemError( "Requested Prioritizing - Errored", //
125 + "", //
126 + "Error: " + pError );
127 + } else {
128 + fetchRows();
129 + }
130 + }
131 +
132 + @Override
133 + public Widget getBottomBar() {
134 + return null;
135 + }
136 +
137 + protected static class TableDef extends BoTableDefinition<StoryView> implements StoryViewNames,
138 + DataTableStyle {
139 + public TableDef() {
140 + StoryViewMetaData zMD = StoryViewMetaData.getInstance();
141 +
142 + addColumn( zMD.getBoAttribute( aName ) ); // .initialWidth( FontSizer.get( TABLE_TEXT ).EMsPlus( 20, CELL_PADDING ) );
143 + addColumn( zMD.getBoAttribute( aDescriptionThreeLines ), "Description" ); // .initialWidth( FontSizer.get( TABLE_TEXT ).EMsPlus( 40, CELL_PADDING ) );
144 + }
145 + }
146 +
147 + private class MoveControlPanel extends VerticalPanel implements SelectionHandler<StoryView> {
148 + private final Button mBetweenButton, mUpButton, mDownButton;
149 + private final List<GroupMover> mGroupMovers = new ArrayList<GroupMover>();
150 +
151 + private MoveControlPanel( boolean pAddUpDown ) {
152 + mBetweenButton = Button.named( "Between" ).blue().text( "To There" ).add( new ClickHandler() {
153 + @Override
154 + public void onClick( ClickEvent event ) {
155 + reprioritizeBetween();
156 + }
157 + } ).create().disable();
158 + mUpButton = Button.named( "Up" ).blue().text().add( new ClickHandler() {
159 + @Override
160 + public void onClick( ClickEvent event ) {
161 + reprioritizeUp();
162 + }
163 + } ).create().disable();
164 + mDownButton = Button.named( "Down" ).blue().text().add( new ClickHandler() {
165 + @Override
166 + public void onClick( ClickEvent event ) {
167 + reprioritizeDown();
168 + }
169 + } ).create().disable();
170 +
171 + setHorizontalAlignment( VerticalPanel.ALIGN_CENTER );
172 + add( new Label( "Move..." ) );
173 + add( new Spacer( 20 ) );
174 + add( mBetweenButton );
175 + add( new Spacer( 20 ) );
176 + PriorityGroup[] zGroups = PriorityGroup.values();
177 + for ( int i = zGroups.length; --i >= 0; ) {
178 + PriorityGroup zGroup = zGroups[i];
179 + if ( PriorityGroup.Initial != zGroup ) {
180 + GroupMover zMover = new GroupMover( zGroup );
181 + mGroupMovers.add( zMover );
182 + add( zMover.getButton() );
183 + }
184 + }
185 + add( new Spacer( 20 ) );
186 + if ( pAddUpDown ) {
187 + add( mUpButton );
188 + add( mDownButton );
189 + }
190 + }
191 +
192 + @Override
193 + protected void onAttach() {
194 + super.onAttach();
195 + sameSizeButtons();
196 + }
197 +
198 + private void sameSizeButtons() {
199 + if ( isAttached() ) {
200 + Integer zMaxWidth = getMaxControlButtonWidth();
201 + if ( zMaxWidth != null ) {
202 + setControlButtonSameWidth( zMaxWidth );
203 + return;
204 + }
205 + }
206 + Scheduler.get().scheduleDeferred( new Command() {
207 + @Override
208 + public void execute() {
209 + sameSizeButtons();
210 + }
211 + } );
212 + }
213 +
214 + private Integer getMaxControlButtonWidth() {
215 + int zMaxWidth = mBetweenButton.getOffsetWidth();
216 + for ( Widget zWidget : getChildren() ) {
217 + if ( zWidget instanceof Button ) {
218 + zMaxWidth = Math.max( zMaxWidth, zWidget.getOffsetWidth() );
219 + }
220 + }
221 + return (zMaxWidth > 30) ? zMaxWidth : null;
222 + }
223 +
224 + private void setControlButtonSameWidth( int pWidth ) {
225 + String zWidth = "" + pWidth;
226 + for ( Widget zWidget : getChildren() ) {
227 + if ( zWidget instanceof Button ) {
228 + zWidget.setWidth( zWidth );
229 + }
230 + }
231 + }
232 +
233 + @Override
234 + public void onSelection( SelectionEvent<StoryView> event ) {
235 + handleButtons( mTable.getSelectedValues() );
236 + }
237 +
238 + private void handleButtons( Set<StoryView> pSelectedValues ) {
239 + boolean zAnySelected = (pSelectedValues != null) && !pSelectedValues.isEmpty();
240 + mBetweenButton.setEnabled( zAnySelected && betweenable( pSelectedValues ) );
241 + mUpButton.setEnabled( zAnySelected && upable( pSelectedValues ) );
242 + mDownButton.setEnabled( zAnySelected && downable( pSelectedValues ) );
243 + for ( GroupMover zMover : mGroupMovers ) {
244 + zMover.setEnable( zAnySelected, pSelectedValues );
245 + }
246 + }
247 + }
248 +
249 + private class GroupMover implements ClickHandler {
250 + private PriorityGroup mGroup;
251 + private Button mButton;
252 +
253 + private GroupMover( PriorityGroup pGroup ) {
254 + mGroup = pGroup;
255 + mButton = Button.named( mGroup.name() ).blue().text().add( this ).create().disable();
256 + }
257 +
258 + public Button getButton() {
259 + return mButton;
260 + }
261 +
262 + @Override
263 + public void onClick( ClickEvent event ) {
264 + reprioritizeToGroup( mGroup );
265 + }
266 +
267 + public void setEnable( boolean pAnySelected, Set<StoryView> pSelectedValues ) {
268 + mButton.setEnabled( pAnySelected && applicable( pSelectedValues ) );
269 + }
270 +
271 + private boolean applicable( Set<StoryView> pSelectedValues ) {
272 + for ( StoryView zStoryView : pSelectedValues ) {
273 + if ( mGroup != PriorityGroup.from( zStoryView.getPriority() ) ) {
274 + return true;
275 + }
276 + }
277 + return false;
278 + }
279 + }
280 +
281 + abstract protected boolean betweenable( Set<StoryView> pSelectedValues );
282 +
283 + protected boolean upable( Set<StoryView> pSelectedValues ) {
284 + return !isAtEdge( pSelectedValues, 0 );
285 + }
286 +
287 + protected boolean downable( Set<StoryView> pSelectedValues ) {
288 + return !isAtEdge( pSelectedValues, mTableModel.size() - 1 );
289 + }
290 +
291 + protected boolean isAtEdge( Set<StoryView> pSelectedValues, int pEdge ) {
292 + for ( StoryView zStoryView : pSelectedValues ) {
293 + if ( mTableModel.indexOf( zStoryView ) == pEdge ) {
294 + return true;
295 + }
296 + }
297 + return false;
298 + }
299 +
300 + private void reprioritizeUp() {
301 + int zMin = mTableModel.size();
302 + for ( StoryView zStoryView : mTable.getSelectedValues() ) {
303 + zMin = Math.min( zMin, mTableModel.indexOf( zStoryView ) );
304 + }
305 + if ( zMin != mTableModel.size() ) {
306 + reprioritizeBetween( mSavedSelectedValues = mTable.getSelectedValues(), getStoryView( zMin - 1 ), getStoryView( zMin - 2 ) );
307 + }
308 + }
309 +
310 + private void reprioritizeDown() {
311 + int zMax = -1;
312 + for ( StoryView zStoryView : mTable.getSelectedValues() ) {
313 + zMax = Math.max( zMax, mTableModel.indexOf( zStoryView ) );
314 + }
315 + if ( zMax != -1 ) {
316 + reprioritizeBetween( mSavedSelectedValues = mTable.getSelectedValues(), getStoryView( zMax + 2 ), getStoryView( zMax + 1 ) );
317 + }
318 + }
319 +
320 + private void reprioritizeBetween( StoryView pLowerBound, StoryView pUpperBound ) {
321 + reprioritizeBetween( mTable.getSelectedValues(), pLowerBound, pUpperBound );
322 + }
323 +
324 + private void reprioritizeBetween( Set<StoryView> pSelectedValues, StoryView pLowerBound, StoryView pUpperBound ) {
325 + mDP.reprioritizeBetween( pLowerBound, pUpperBound, pSelectedValues, this );
326 + }
327 +
328 + private void reprioritizeToGroup( PriorityGroup pGroup ) {
329 + mDP.reprioritizeToGroup( pGroup, mTable.getSelectedValues(), this );
330 + }
331 +
332 + private StoryView getStoryView( int pIndex ) {
333 + return ((0 <= pIndex) && (pIndex < mTableModel.size())) ? mTableModel.get( pIndex ) : null;
334 + }
335 +
336 + abstract protected void fetchTargetBetweenRows( final DataAvailableCallBack<StoryView> pCallBack );
337 +
338 + private void reprioritizeBetween() {
339 + fetchTargetBetweenRows( this );
340 + }
341 +
342 + @Override
343 + public void dataAvailable( List<StoryView> pData ) // called when we can proceed with the InjectionPointSelector
344 + {
345 + if ( pData.isEmpty() ) {
346 + error( "There are Nothing but " + PriorityGroup.Initial + " priority Stories" );
347 + return;
348 + }
349 + Set<StoryView> zSelectedRows = mTable.getSelectedValues();
350 + List<StoryView> zNonSelectedRows = new ArrayList<StoryView>( pData.size() );
351 + for ( StoryView zStoryView : pData ) {
352 + if ( !zSelectedRows.contains( zStoryView ) ) {
353 + zNonSelectedRows.add( zStoryView );
354 + }
355 + }
356 + if ( zNonSelectedRows.isEmpty() ) {
357 + error( "At least one Story must not be selected" );
358 + return;
359 + }
360 + new InjectionPointSelectionDialog<StoryView>( "Select 'There' to Move Selected Rows", 4, zNonSelectedRows,
361 + new InjectionPointSelector.Callback<StoryView>() {
362 + @Override
363 + public void injectBetween( StoryView pLowerBound, StoryView pUpperBound ) {
364 + reprioritizeBetween( pLowerBound, pUpperBound );
365 + }
366 + } ).show();
367 + }
368 + }

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