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import java.awt.datatransfer.Transferable; |
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import java.awt.datatransfer.Transferable; |
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import java.awt.datatransfer.UnsupportedFlavorException; |
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import java.awt.datatransfer.UnsupportedFlavorException; |
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import java.io.IOException; |
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import java.io.IOException; |
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import java.io.Reader; |
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import java.util.logging.Level; |
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import java.util.logging.Level; |
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import java.util.logging.Logger; |
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import java.util.logging.Logger; |
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import javax.swing.SwingUtilities; |
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import org.netbeans.modules.palette.DefaultModel; |
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import org.netbeans.modules.palette.DefaultModel; |
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import org.netbeans.modules.palette.ui.TextImporter; |
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import org.openide.nodes.Index; |
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import org.openide.nodes.Index; |
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import org.openide.nodes.Node; |
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import org.openide.nodes.Node; |
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import org.openide.util.Lookup; |
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import org.openide.util.Lookup; |
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Lines 66-72
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*/ |
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*/ |
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public abstract class DragAndDropHandler { |
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public abstract class DragAndDropHandler { |
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private boolean isTextDnDEnabled; |
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private static DragAndDropHandler defaultHandler; |
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private static DragAndDropHandler defaultHandler; |
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public DragAndDropHandler() { |
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this( false ); |
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} |
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/** |
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* Subclass this class and use this c'tor with <code>true</code> parameter to support text drag and drop |
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* into the palette to create new custom code clips. Subclassed instance must be then provided |
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* to <code>PaletteFactory</code> when creating <code>PaletteController</code>. |
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* @param textDnDEnabled True to allow text to be dropped into the palette window. |
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*/ |
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protected DragAndDropHandler( boolean textDnDEnabled ) { |
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this.isTextDnDEnabled = textDnDEnabled; |
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} |
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static DragAndDropHandler getDefault() { |
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static DragAndDropHandler getDefault() { |
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if( null == defaultHandler ) |
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if( null == defaultHandler ) |
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Lines 97-103
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return true; |
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return true; |
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} |
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} |
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} |
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} |
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return false; |
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return (isTextDnDEnabled && DataFlavor.selectBestTextFlavor(flavors) != null); |
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} |
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} |
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/** |
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/** |
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} |
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} |
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} |
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} |
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return true; |
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return true; |
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} |
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if( isTextDnDEnabled && null != DataFlavor.selectBestTextFlavor(item.getTransferDataFlavors()) ) { |
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return importTextIntoPalette( targetCategory, item, dropIndex ); |
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} |
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} |
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} catch( IOException ioE ) { |
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} catch( IOException ioE ) { |
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Logger.getLogger( DragAndDropHandler.class.getName() ).log( Level.INFO, null, ioE ); |
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Logger.getLogger( DragAndDropHandler.class.getName() ).log( Level.INFO, null, ioE ); |
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Lines 237-242
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return true; |
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return true; |
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} |
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} |
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private boolean importTextIntoPalette( Lookup targetCategory, Transferable item, int dropIndex ) |
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throws IOException, UnsupportedFlavorException { |
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DataFlavor flavor = DataFlavor.selectBestTextFlavor( item.getTransferDataFlavors() ); |
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if( null == flavor ) |
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return false; |
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String textToImport = extractText( item, flavor ); |
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SwingUtilities.invokeLater( new TextImporter( textToImport, targetCategory, dropIndex ) ); |
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return true; |
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} |
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private String extractText( Transferable t, DataFlavor flavor ) |
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throws IOException, UnsupportedFlavorException { |
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Reader reader = flavor.getReaderForText(t); |
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if( null == reader ) |
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return null; |
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StringBuffer res = new StringBuffer(); |
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char[] buffer = new char[4*1024]; |
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int len; |
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while( (len=reader.read( buffer )) > 0 ) { |
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res.append(buffer, 0, len); |
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} |
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return res.toString(); |
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} |
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private static final class DefaultDragAndDropHandler extends DragAndDropHandler { |
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private static final class DefaultDragAndDropHandler extends DragAndDropHandler { |
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public void customize(ExTransferable t, Lookup item) { |
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public void customize(ExTransferable t, Lookup item) { |
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//do nothing |
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//do nothing |