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package java.awt.peer;


import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.awt.Desktop.Action;


The DesktopPeer interface provides methods for the operation of open, edit, print, browse and mail with the given URL or file, by launching the associated application. 

Each platform has an implementation class for this interface.

/**
 * The {@code DesktopPeer} interface provides methods for the operation
 * of open, edit, print, browse and mail with the given URL or file, by
 * launching the associated application.
 * <p>
 * Each platform has an implementation class for this interface.
 *
 */
public interface DesktopPeer {

    
Returns whether the given action is supported on the current platform.

Params:
  • action – the action type to be tested if it's supported on the
       current platform.
Returns:true if the given action is supported on the current platform; false otherwise.
/**
     * Returns whether the given action is supported on the current platform.
     * @param action the action type to be tested if it's supported on the
     *        current platform.
     * @return {@code true} if the given action is supported on
     *         the current platform; {@code false} otherwise.
     */
    boolean isSupported(Action action);

    
Launches the associated application to open the given file. The
associated application is registered to be the default file viewer for
the file type of the given file.

Params:
  • file – the given file.
Throws:
  • IOException – If the given file has no associated application,
        or the associated application fails to be launched.
/**
     * Launches the associated application to open the given file. The
     * associated application is registered to be the default file viewer for
     * the file type of the given file.
     *
     * @param file the given file.
     * @throws IOException If the given file has no associated application,
     *         or the associated application fails to be launched.
     */
    void open(File file) throws IOException;

    
Launches the associated editor and opens the given file for editing. The
associated editor is registered to be the default editor for the file
type of the given file.

Params:
  • file – the given file.
Throws:
  • IOException – If the given file has no associated editor, or
        the associated application fails to be launched.
/**
     * Launches the associated editor and opens the given file for editing. The
     * associated editor is registered to be the default editor for the file
     * type of the given file.
     *
     * @param file the given file.
     * @throws IOException If the given file has no associated editor, or
     *         the associated application fails to be launched.
     */
    void edit(File file) throws IOException;

    
Prints the given file with the native desktop printing facility, using
the associated application's print command.

Params:
  • file – the given file.
Throws:
  • IOException – If the given file has no associated application
        that can be used to print it.
/**
     * Prints the given file with the native desktop printing facility, using
     * the associated application's print command.
     *
     * @param file the given file.
     * @throws IOException If the given file has no associated application
     *         that can be used to print it.
     */
    void print(File file) throws IOException;

    
Launches the mail composing window of the user default mail client,
filling the message fields including to, cc, etc, with the values
specified by the given mailto URL.

Params:
Throws:
  • IOException – If the user default mail client is not found,
        or it fails to be launched.
/**
     * Launches the mail composing window of the user default mail client,
     * filling the message fields including to, cc, etc, with the values
     * specified by the given mailto URL.
     *
     * @param mailtoURL represents a mailto URL with specified values of the message.
     *        The syntax of mailto URL is defined by
     *        <a href="http://www.ietf.org/rfc/rfc2368.txt">RFC2368: The mailto
     *        URL scheme</a>
     * @throws IOException If the user default mail client is not found,
     *         or it fails to be launched.
     */
    void mail(URI mailtoURL) throws IOException;

    
Launches the user default browser to display the given URI.

Params:
  • uri – the given URI.
Throws:
  • IOException – If the user default browser is not found,
        or it fails to be launched.
/**
     * Launches the user default browser to display the given URI.
     *
     * @param uri the given URI.
     * @throws IOException If the user default browser is not found,
     *         or it fails to be launched.
     */
    void browse(URI uri) throws IOException;
}