134 public synchronized Transferable getContents(Object requestor) {
135 if (contents != null) {
136 return contents;
137 }
138 return new ClipboardTransferable(this);
139 }
140
141
142 /**
143 * @return the contents of this clipboard if it has been set from the same
144 * AppContext as it is currently retrieved or null otherwise
145 * @since 1.5
146 */
147 protected synchronized Transferable getContextContents() {
148 AppContext context = AppContext.getAppContext();
149 return (context == contentsContext) ? contents : null;
150 }
151
152
153 /**
154 * @see java.awt.Clipboard#getAvailableDataFlavors
155 * @since 1.5
156 */
157 public DataFlavor[] getAvailableDataFlavors() {
158 Transferable cntnts = getContextContents();
159 if (cntnts != null) {
160 return cntnts.getTransferDataFlavors();
161 }
162
163 long[] formats = getClipboardFormatsOpenClose();
164
165 return DataTransferer.getInstance().
166 getFlavorsForFormatsAsArray(formats, getDefaultFlavorTable());
167 }
168
169 /**
170 * @see java.awt.Clipboard#isDataFlavorAvailable
171 * @since 1.5
172 */
173 public boolean isDataFlavorAvailable(DataFlavor flavor) {
174 if (flavor == null) {
175 throw new NullPointerException("flavor");
176 }
177
178 Transferable cntnts = getContextContents();
179 if (cntnts != null) {
180 return cntnts.isDataFlavorSupported(flavor);
181 }
182
183 long[] formats = getClipboardFormatsOpenClose();
184
185 return formatArrayAsDataFlavorSet(formats).contains(flavor);
186 }
187
188 /**
189 * @see java.awt.Clipboard#getData
190 * @since 1.5
191 */
192 public Object getData(DataFlavor flavor)
193 throws UnsupportedFlavorException, IOException {
194 if (flavor == null) {
195 throw new NullPointerException("flavor");
196 }
197
198 Transferable cntnts = getContextContents();
199 if (cntnts != null) {
200 return cntnts.getTransferData(flavor);
201 }
202
203 long format = 0;
204 byte[] data = null;
205 Transferable localeTransferable = null;
206
207 try {
208 openClipboard(null);
209
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134 public synchronized Transferable getContents(Object requestor) {
135 if (contents != null) {
136 return contents;
137 }
138 return new ClipboardTransferable(this);
139 }
140
141
142 /**
143 * @return the contents of this clipboard if it has been set from the same
144 * AppContext as it is currently retrieved or null otherwise
145 * @since 1.5
146 */
147 protected synchronized Transferable getContextContents() {
148 AppContext context = AppContext.getAppContext();
149 return (context == contentsContext) ? contents : null;
150 }
151
152
153 /**
154 * @see java.awt.datatransfer.Clipboard#getAvailableDataFlavors
155 * @since 1.5
156 */
157 public DataFlavor[] getAvailableDataFlavors() {
158 Transferable cntnts = getContextContents();
159 if (cntnts != null) {
160 return cntnts.getTransferDataFlavors();
161 }
162
163 long[] formats = getClipboardFormatsOpenClose();
164
165 return DataTransferer.getInstance().
166 getFlavorsForFormatsAsArray(formats, getDefaultFlavorTable());
167 }
168
169 /**
170 * @see java.awt.datatransfer.Clipboard#isDataFlavorAvailable
171 * @since 1.5
172 */
173 public boolean isDataFlavorAvailable(DataFlavor flavor) {
174 if (flavor == null) {
175 throw new NullPointerException("flavor");
176 }
177
178 Transferable cntnts = getContextContents();
179 if (cntnts != null) {
180 return cntnts.isDataFlavorSupported(flavor);
181 }
182
183 long[] formats = getClipboardFormatsOpenClose();
184
185 return formatArrayAsDataFlavorSet(formats).contains(flavor);
186 }
187
188 /**
189 * @see java.awt.datatransfer.Clipboard#getData
190 * @since 1.5
191 */
192 public Object getData(DataFlavor flavor)
193 throws UnsupportedFlavorException, IOException {
194 if (flavor == null) {
195 throw new NullPointerException("flavor");
196 }
197
198 Transferable cntnts = getContextContents();
199 if (cntnts != null) {
200 return cntnts.getTransferData(flavor);
201 }
202
203 long format = 0;
204 byte[] data = null;
205 Transferable localeTransferable = null;
206
207 try {
208 openClipboard(null);
209
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