net.java.sip.communicator.impl.gui.main.chat
Class ChatTransferHandler

java.lang.Object
  javax.swing.TransferHandler
      net.java.sip.communicator.util.swing.ExtendedTransferHandler
          net.java.sip.communicator.impl.gui.main.chat.ChatTransferHandler

All Implemented Interfaces:

Serializable

public class ChatTransferHandler
extends ExtendedTransferHandler

A TransferHandler that we use to handle copying, pasting and DnD operations in our ChatPanel. The string handler is heavily inspired by Sun's DefaultTransferHandler with the main difference being that we only accept pasting of plain text. We do this in order to avoid HTML support problems that appear when pasting formatted text into our editable area.

Author:

Emil Ivov, Yana Stamcheva

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class net.java.sip.communicator.util.swing.ExtendedTransferHandler

ExtendedTransferHandler.SelectedTextTransferable

Nested classes/interfaces inherited from class javax.swing.TransferHandler

TransferHandler.DropLocation, TransferHandler.TransferSupport

Field Summary

protected static DataFlavor

uiContactDataFlavor The data flavor used when transferring UIContacts.

Fields inherited from class javax.swing.TransferHandler

COPY, COPY_OR_MOVE, LINK, MOVE, NONE

Constructor Summary

ChatTransferHandler(ChatPanel chatPanel)
Constructs the ChatTransferHandler by specifying the ChatPanel we're currently dealing with.

Method Summary

boolean	canImport(JComponent comp, DataFlavor[] flavor) Indicates whether a component will accept an import of the given set of data flavors prior to actually attempting to import it.
boolean	importData(JComponent comp, Transferable t) Handles transfers to the chat panel from the clip board or a DND drop operation.

Methods inherited from class net.java.sip.communicator.util.swing.ExtendedTransferHandler

createTransferable, exportAsDrag, exportToClipboard, getSourceActions, getVisualRepresentation

Methods inherited from class javax.swing.TransferHandler

canImport, exportDone, getCopyAction, getCutAction, getPasteAction, importData

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

uiContactDataFlavor

protected static final DataFlavor uiContactDataFlavor

The data flavor used when transferring UIContacts.

Constructor Detail

ChatTransferHandler

public ChatTransferHandler(ChatPanel chatPanel)

Constructs the ChatTransferHandler by specifying the ChatPanel we're currently dealing with.

Parameters:

chatPanel - the ChatPanel we're currently dealing with

Method Detail

canImport

public boolean canImport(JComponent comp,
                         DataFlavor[] flavor)

Indicates whether a component will accept an import of the given set of data flavors prior to actually attempting to import it. We return true to indicate that the transfer with at least one of the given flavors would work and false to reject the transfer.

Overrides:

canImport in class ExtendedTransferHandler

Parameters:

comp - component

flavor - the data formats available

Returns:

true if the data can be inserted into the component, false otherwise

Throws:

NullPointerException - if support is null

importData

public boolean importData(JComponent comp,
                          Transferable t)

Handles transfers to the chat panel from the clip board or a DND drop operation. The Transferable parameter contains the data that needs to be imported.

Overrides:

importData in class TransferHandler

Parameters:

comp - the component to receive the transfer;

t - the data to import

Returns:

true if the data was inserted into the component and false otherwise