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Package: LinkCellEditor$2
LinkCellEditor$2
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2013 EclipseSource Muenchen GmbH and others.
3: *
4: * All rights reserved. This program and the accompanying materials
5: * are made available under the terms of the Eclipse Public License 2.0
6: * which accompanies this distribution, and is available at
7: * https://www.eclipse.org/legal/epl-2.0/
8: *
9: * SPDX-License-Identifier: EPL-2.0
10: *
11: * Contributors:
12: * Eugen Neufeld - initial API and implementation
13: *******************************************************************************/
14: package org.eclipse.emf.ecp.edit.internal.swt.reference;
15:
16: import java.text.MessageFormat;
17:
18: import org.eclipse.core.databinding.DataBindingContext;
19: import org.eclipse.core.databinding.UpdateValueStrategy;
20: import org.eclipse.core.databinding.observable.value.IObservableValue;
21: import org.eclipse.core.databinding.property.INativePropertyListener;
22: import org.eclipse.core.databinding.property.ISimplePropertyListener;
23: import org.eclipse.core.databinding.property.value.IValueProperty;
24: import org.eclipse.core.databinding.property.value.SimpleValueProperty;
25: import org.eclipse.emf.common.notify.AdapterFactory;
26: import org.eclipse.emf.ecore.EStructuralFeature;
27: import org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor;
28: import org.eclipse.emf.ecp.edit.spi.util.ECPModelElementChangeListener;
29: import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
30: import org.eclipse.emf.edit.provider.AdapterFactoryItemDelegator;
31: import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
32: import org.eclipse.emf.edit.provider.ReflectiveItemProviderAdapterFactory;
33: import org.eclipse.jface.viewers.CellEditor;
34: import org.eclipse.swt.SWT;
35: import org.eclipse.swt.events.KeyEvent;
36: import org.eclipse.swt.events.SelectionAdapter;
37: import org.eclipse.swt.events.SelectionEvent;
38: import org.eclipse.swt.graphics.Image;
39: import org.eclipse.swt.widgets.Composite;
40: import org.eclipse.swt.widgets.Control;
41: import org.eclipse.swt.widgets.Link;
42:
43: /**
44: * A cell editor displaying a link.
45: *
46: * @author Eugen Neufeld
47: *
48: */
49: public class LinkCellEditor extends CellEditor implements ECPCellEditor {
50:
51: private Link link;
52: private AdapterFactoryItemDelegator adapterFactoryItemDelegator;
53: private ComposedAdapterFactory composedAdapterFactory;
54: private ECPModelElementChangeListener modelElementChangeListener;
55:
56: /**
57: * Default constructor.
58: *
59: * @param parent the parent
60: */
61: public LinkCellEditor(Composite parent) {
62: super(parent);
63: }
64:
65: /**
66: * Constructor allowing to specify a SWT style.
67: *
68: * @param parent the parent
69: * @param style the SWT style
70: */
71: public LinkCellEditor(Composite parent, int style) {
72: super(parent, style);
73: }
74:
75: /**
76: *
77: * {@inheritDoc}
78: *
79: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getValueProperty()
80: */
81: @Override
82: public IValueProperty getValueProperty() {
83: return new SimpleValueProperty() {
84:
85: @Override
86: public Object getValueType() {
87: return String.class;
88: }
89:
90: @Override
91: protected Object doGetValue(Object source) {
92: return LinkCellEditor.this.doGetValue();
93: }
94:
95: @Override
96: protected void doSetValue(Object source, Object value) {
97: LinkCellEditor.this.doSetValue(value);
98: }
99:
100: @Override
101: public IObservableValue observe(Object source) {
102: if (source instanceof LinkCellEditor) {
103: return observe(link);
104: }
105: return super.observe(source);
106: }
107:
108: @Override
109: public INativePropertyListener adaptListener(ISimplePropertyListener listener) {
110: return null;
111: }
112: };
113: }
114:
115: /**
116: * {@inheritDoc}
117: *
118: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#instantiate(org.eclipse.emf.ecore.EStructuralFeature,
119: * org.eclipse.emf.ecp.view.spi.context.ViewModelContext)
120: */
121: @Override
122: public void instantiate(EStructuralFeature eStructuralFeature, ViewModelContext viewModelContext) {
123:
124: }
125:
126: @Override
127: protected Control createControl(Composite parent) {
128: composedAdapterFactory = new ComposedAdapterFactory(new AdapterFactory[] {
129: new ReflectiveItemProviderAdapterFactory(),
130: new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE) });
131:
132: adapterFactoryItemDelegator = new AdapterFactoryItemDelegator(composedAdapterFactory);
133: link = new Link(parent, SWT.NONE);
134: link.setData(CUSTOM_VARIANT, "org_eclipse_emf_ecp_edit_cellEditor_reference"); //$NON-NLS-1$
135: link.addSelectionListener(new SelectionAdapter() {
136:
137: private static final long serialVersionUID = 1L;
138:
139: @Override
140: public void widgetDefaultSelected(SelectionEvent e) {
141: super.widgetDefaultSelected(e);
142: widgetSelected(e);
143: }
144:
145: @Override
146: public void widgetSelected(SelectionEvent e) {
147: super.widgetSelected(e);
148: }
149:
150: });
151: return link;
152: }
153:
154: @Override
155: protected Object doGetValue() {
156: return link.getText();
157: }
158:
159: @Override
160: public void dispose() {
161: composedAdapterFactory.dispose();
162: if (modelElementChangeListener != null) {
163: modelElementChangeListener.remove();
164: }
165: super.dispose();
166: }
167:
168: @Override
169: protected void doSetFocus() {
170: link.setFocus();
171: }
172:
173: @Override
174: protected void doSetValue(Object value) {
175: final String linkName = adapterFactoryItemDelegator.getText(value);
176: link.setText("<a>" + linkName + "</a>"); //$NON-NLS-1$ //$NON-NLS-2$
177: }
178:
179: /*
180: * (non-Javadoc)
181: * @see org.eclipse.jface.viewers.CellEditor#focusLost()
182: */
183: @Override
184: protected void focusLost() {
185: if (isActivated()) {
186: applyEditorValueAndDeactivate();
187: }
188: }
189:
190: /*
191: * (non-Javadoc)
192: * @see org.eclipse.jface.viewers.CellEditor#keyReleaseOccured(org.eclipse.swt.events.KeyEvent)
193: */
194: @Override
195: protected void keyReleaseOccured(KeyEvent keyEvent) {
196: super.keyReleaseOccured(keyEvent);
197: if (keyEvent.character == '\u001b') { // Escape character
198: fireCancelEditor();
199: } else if (keyEvent.character == '\t') { // tab key
200: applyEditorValueAndDeactivate();
201: }
202: }
203:
204: /**
205: * Applies the currently selected value and deactiavates the cell editor.
206: */
207: void applyEditorValueAndDeactivate() {
208: // must set the selection before getting value
209:
210: final Object newValue = doGetValue();
211: markDirty();
212: final boolean isValid = isCorrect(newValue);
213: setValueValid(isValid);
214:
215: if (!isValid) {
216: MessageFormat.format(getErrorMessage(), new Object[] { newValue });
217: }
218:
219: fireApplyEditorValue();
220: deactivate();
221: }
222:
223: /**
224: *
225: * {@inheritDoc}
226: *
227: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getFormatedString(java.lang.Object)
228: */
229: @Override
230: public String getFormatedString(Object value) {
231: return adapterFactoryItemDelegator.getText(value);
232: }
233:
234: /**
235: *
236: * {@inheritDoc}
237: *
238: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getColumnWidthWeight()
239: */
240: @Override
241: public int getColumnWidthWeight() {
242: return 100;
243: }
244:
245: /**
246: *
247: * {@inheritDoc}
248: *
249: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getTargetToModelStrategy(org.eclipse.core.databinding.DataBindingContext)
250: */
251: @Override
252: public UpdateValueStrategy getTargetToModelStrategy(DataBindingContext databindingContext) {
253: // TODO Auto-generated method stub
254: return null;
255: }
256:
257: /**
258: *
259: * {@inheritDoc}
260: *
261: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getModelToTargetStrategy(org.eclipse.core.databinding.DataBindingContext)
262: */
263: @Override
264: public UpdateValueStrategy getModelToTargetStrategy(DataBindingContext databindingContext) {
265: // TODO Auto-generated method stub
266: return null;
267: }
268:
269: /**
270: * {@inheritDoc}
271: *
272: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#setEditable(boolean)
273: */
274: @Override
275: public void setEditable(boolean editable) {
276: if (link != null) {
277: link.setEnabled(editable);
278: }
279: }
280:
281: /**
282: * {@inheritDoc}
283: *
284: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getImage(java.lang.Object)
285: */
286: @Override
287: public Image getImage(Object value) {
288: return null;
289: }
290:
291: /**
292: * {@inheritDoc}
293: *
294: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getMinWidth()
295: */
296: @Override
297: public int getMinWidth() {
298: return 0;
299: }
300: }