mirror of https://github.com/sipwise/jitsi.git
- Issue #690 (Add drag and drop of files in the contact list).
- Show an error message when file transfer is not supported by the selected account.cusax-fix
Yana Stamcheva
17 years ago
parent
0cadd75995
commit
26c28dfbda
@ -0,0 +1,118 @@
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/*
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* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
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*
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* Distributable under LGPL license.
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* See terms of license at gnu.org.
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*/
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package net.java.sip.communicator.impl.gui.main.contactlist;
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import java.awt.datatransfer.*;
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import java.io.*;
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import java.util.*;
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import javax.swing.*;
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import net.java.sip.communicator.impl.gui.*;
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import net.java.sip.communicator.impl.gui.main.chat.*;
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import net.java.sip.communicator.service.contactlist.*;
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import net.java.sip.communicator.util.*;
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import net.java.sip.communicator.util.swing.*;
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/**
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* A TransferHandler that we use to handle DnD operations of files in our
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* <tt>ContactList</tt>.
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*
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* @author Yana Stamcheva
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*/
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public class ContactListTransferHandler
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extends ExtendedTransferHandler
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{
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private static final Logger logger
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= Logger.getLogger(ContactListTransferHandler.class);
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private final DefaultContactList contactList;
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public ContactListTransferHandler(DefaultContactList contactList)
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{
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this.contactList = contactList;
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}
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/**
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* Handles transfers to the contact list from the clip board or a
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* DND drop operation. The <tt>Transferable</tt> parameter contains the
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* data that needs to be imported.
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* <p>
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* @param comp the component to receive the transfer;
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* @param transferable the data to import
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* @return true if the data was inserted into the component and false
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* otherwise
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* @see #importData(TransferHandler.TransferSupport)
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*/
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public boolean importData(JComponent comp, Transferable t)
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{
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if (t.isDataFlavorSupported(DataFlavor.javaFileListFlavor))
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{
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try
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{
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Object o = t.getTransferData(DataFlavor.javaFileListFlavor);
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ChatPanel chatPanel = getChatPanel();
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if (chatPanel != null)
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{
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if (o instanceof java.util.Collection)
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{
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Collection<File> files = (Collection<File>) o;
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for(File file: files)
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{
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if (chatPanel != null)
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chatPanel.sendFile(file);
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GuiActivator.getUIService().getChatWindowManager()
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.openChat(chatPanel, false);
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}
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// Otherwise fire files dropped event.
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return true;
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}
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}
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}
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catch (UnsupportedFlavorException e)
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{
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logger.debug("Failed to drop files.", e);
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}
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catch (IOException e)
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{
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logger.debug("Failed to drop files.", e);
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}
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}
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return false;
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}
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/**
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* Returns the <tt>ChatPanel</tt> corresponding to the currently selected
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* contact.
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*
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* @return the <tt>ChatPanel</tt> corresponding to the currently selected
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* contact.
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*/
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private ChatPanel getChatPanel()
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{
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ChatPanel chatPanel = null;
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Object selectedObject = contactList.getSelectedValue();
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if (selectedObject != null && selectedObject instanceof MetaContact)
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{
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MetaContact metaContact = (MetaContact) selectedObject;
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// Obtain the corresponding chat panel.
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chatPanel
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= GuiActivator.getUIService().getChatWindowManager()
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.getContactChat(metaContact);
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}
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return chatPanel;
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}
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}
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@ -0,0 +1,191 @@
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/*
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* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
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*
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* Distributable under LGPL license.
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* See terms of license at gnu.org.
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*/
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package net.java.sip.communicator.util.swing;
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import java.awt.datatransfer.*;
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import java.io.*;
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import javax.swing.*;
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import javax.swing.text.*;
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/**
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* A TransferHandler that we use to handle copying, pasting and DnD operations.
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* The string handler is heavily inspired by Sun's
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* <tt>DefaultTransferHandler</tt> with the main difference being that
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* we only accept pasting of plain text. We do this in order to avoid html
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* support problems that appear when pasting formatted text into our editable
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* area.
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*
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* @author Emil Ivov
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* @author Yana Stamcheva
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*/
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public class ExtendedTransferHandler
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extends TransferHandler
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{
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/**
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* Returns the type of transfer actions supported by the source;
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* any bitwise-OR combination of <tt>COPY</tt>, <tt>MOVE</tt>
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* and <tt>LINK</tt>.
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* <p>
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* Some models are not mutable, so a transfer operation of <tt>MOVE</tt>
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* should not be advertised in that case. Returning <tt>NONE</tt>
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* disables transfers from the component.
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*
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* @param c the component holding the data to be transferred;
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* provided to enable sharing of <code>TransferHandler</code>s
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* @return {@code COPY} if the transfer property can be found,
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* otherwise returns <code>NONE</code>
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*/
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public int getSourceActions(JComponent c)
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{
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return TransferHandler.COPY_OR_MOVE;
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}
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/** Indicates whether a component will accept an import of the given
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* set of data flavors prior to actually attempting to import it. We return
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* <tt>true</tt> to indicate that the transfer with at least one of the
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* given flavors would work and <tt>false</tt> to reject the transfer.
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* <p>
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* @param support the object containing the details of the transfer, not
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* <code>null</code>.
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* @param transferFlavors the data formats available
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* @return true if the data can be inserted into the component, false
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* otherwise
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* @throws NullPointerException if <code>support</code> is {@code null}
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*/
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public boolean canImport(JComponent comp, DataFlavor flavor[])
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{
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for (int i = 0, n = flavor.length; i < n; i++)
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{
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if (flavor[i].equals(DataFlavor.javaFileListFlavor))
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{
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return true;
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}
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else if (flavor[i].equals(DataFlavor.stringFlavor))
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{
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if (comp instanceof JTextComponent)
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{
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JTextComponent c = (JTextComponent)comp;
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if (c.isEditable() && c.isEnabled())
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{
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return true;
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}
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}
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return false;
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}
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}
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return false;
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}
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/**
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* Creates a transferable for text pane components in order to enable drag
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* and drop of text.
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*/
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public Transferable createTransferable(JComponent comp)
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{
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if (comp instanceof JTextPane)
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{
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return new SelectedTextTransferable((JTextPane) comp);
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}
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return super.createTransferable(comp);
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}
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/**
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* Handles transport (cut and copy) from the chat panel to
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* <tt>clipboard</tt>. This method will only transfer plain text and would
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* explicitly ignore any formatting.
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* <p>
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* @param comp the component holding the data to be transferred;
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* provided to enable sharing of <code>TransferHandler</code>s
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* @param clip the clipboard to transfer the data into
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* @param action the transfer action requested; this should
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* be a value of either <code>COPY</code> or <code>MOVE</code>;
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* the operation performed is the intersection of the transfer
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* capabilities given by getSourceActions and the requested action;
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* the intersection may result in an action of <code>NONE</code>
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* if the requested action isn't supported
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* @throws IllegalStateException if the clipboard is currently unavailable
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* @see Clipboard#setContents(Transferable, ClipboardOwner)
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*/
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public void exportToClipboard(JComponent comp,
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Clipboard clipboard,
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int action)
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throws IllegalStateException
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{
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if (comp instanceof JTextComponent)
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{
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JTextComponent textComponent = (JTextComponent)comp;
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int startIndex = textComponent.getSelectionStart();
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int endIndex = textComponent.getSelectionEnd();
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if (startIndex != endIndex)
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{
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try
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{
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Document doc = textComponent.getDocument();
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String srcData = doc.getText(startIndex,
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endIndex - startIndex);
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StringSelection contents =new StringSelection(srcData);
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// this may throw an IllegalStateException,
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// but it will be caught and handled in the
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// action that invoked this method
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clipboard.setContents(contents, null);
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if (action == TransferHandler.MOVE)
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{
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doc.remove(startIndex, endIndex - startIndex);
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}
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}
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catch (BadLocationException ble)
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{
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//we simply ignore
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}
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}
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}
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}
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/**
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* Transferable for text pane components that enables drag and drop of text.
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*/
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public class SelectedTextTransferable implements Transferable
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{
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private JTextPane textPane;
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public SelectedTextTransferable(JTextPane textPane)
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{
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this.textPane = textPane;
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}
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// Returns supported flavors
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public DataFlavor[] getTransferDataFlavors()
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{
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return new DataFlavor[]{DataFlavor.stringFlavor};
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}
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// Returns true if flavor is supported
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public boolean isDataFlavorSupported(DataFlavor flavor)
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{
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return DataFlavor.stringFlavor.equals(flavor);
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}
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// Returns Selected Text
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public Object getTransferData(DataFlavor flavor)
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throws UnsupportedFlavorException, IOException
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{
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if (!DataFlavor.stringFlavor.equals(flavor))
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{
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throw new UnsupportedFlavorException(flavor);
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}
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return textPane.getSelectedText();
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}
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}
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}
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