FileDrop.java 文件源码

/** Determine if the dragged data is a file list. */
private boolean isDragOk( final java.io.PrintStream out, final java.awt.dnd.DropTargetDragEvent evt )
{   boolean ok = false;

    // Get data flavors being dragged
    java.awt.datatransfer.DataFlavor[] flavors = evt.getCurrentDataFlavors();

    // See if any of the flavors are a file list
    int i = 0;
    while( !ok && i < flavors.length )
    {   
        // BEGIN 2007-09-12 Nathan Blomquist -- Linux (KDE/Gnome) support added.
        // Is the flavor a file list?
        final DataFlavor curFlavor = flavors[i];
        if( curFlavor.equals( java.awt.datatransfer.DataFlavor.javaFileListFlavor ) ||
            curFlavor.isRepresentationClassReader()){
            ok = true;
        }
        // END 2007-09-12 Nathan Blomquist -- Linux (KDE/Gnome) support added.
        i++;
    }   // end while: through flavors

    // If logging is enabled, show data flavors
    if( out != null )
    {   if( flavors.length == 0 )
            log( out, "FileDrop: no data flavors." );
        for( i = 0; i < flavors.length; i++ )
            log( out, flavors[i].toString() );
    }   // end if: logging enabled

    return ok;
}