Adds a button that allows to hide/show the participants list in a video

conference call. Two properties have been added to allow disabling the
button or indicating the default mode (hidden or shown participants
list).

resources/images/images.properties

@@ -225,6 +225,8 @@ service.gui.buttons.LOCAL_VIDEO_BUTTON=resources/images/impl/gui/buttons/localVi
 service.gui.buttons.LOCAL_VIDEO_BUTTON_PRESSED=resources/images/impl/gui/buttons/localVideoButtonPressed.png
 service.gui.buttons.SHOW_LOCAL_VIDEO_BUTTON=resources/images/impl/gui/buttons/showHideLocalVideo.png
 service.gui.buttons.SHOW_LOCAL_VIDEO_BUTTON_PRESSED=resources/images/impl/gui/buttons/showHideLocalVideoPressed.png
+service.gui.buttons.SHOW_HIDE_PEERS_BUTTON=resources/images/impl/gui/buttons/showHidePeers.png
+service.gui.buttons.SHOW_HIDE_PEERS_BUTTON_PRESSED=resources/images/impl/gui/buttons/showHidePeersPressed.png
 service.gui.buttons.TRANSFER_CALL_BUTTON=resources/images/impl/gui/buttons/transferCallButton.png
 service.gui.buttons.SECURE_BUTTON_ON=resources/images/impl/gui/buttons/secureOn.png
 service.gui.buttons.SECURE_BUTTON_OFF=resources/images/impl/gui/buttons/secureOff.png

resources/languages/resources.properties

@@ -581,6 +581,7 @@ service.gui.MUTE_BUTTON_TOOL_TIP=Toggle Mute or hold button to adjust microphone
 service.gui.RECORD_BUTTON_TOOL_TIP=Toggle Record
 service.gui.LOCAL_VIDEO_BUTTON_TOOL_TIP=Toggle Video
 service.gui.SHOW_LOCAL_VIDEO_BUTTON_TOOL_TIP=Show/hide local video
+service.gui.SHOW_HIDE_PEERS_TOOL_TIP=Show/hide call participants list
 service.gui.TRANSFER_BUTTON_TOOL_TIP=Transfer Call
 service.gui.TRANSFER_TO=Transfer to...
 service.gui.SECURITY_INFO=Security information

src/net/java/sip/communicator/impl/gui/main/call/CallPanel.java

@@ -37,6 +37,8 @@
 import org.jitsi.util.event.*;
 import org.osgi.framework.*;
 
+import sun.security.provider.*;
+
 /**
  * The dialog created for a given call.
  *
@@ -154,6 +156,20 @@ public class CallPanel
     private static final String HIDE_VIDEO_BUTON_PROP
         = "net.java.sip.communicator.impl.gui.main.call.HIDE_VIDEO_BUTTON";
 
+    /**
+     * Property to disable the button, which shows/hides participants in video
+     * conferences.
+     */
+    private static final String HIDE_PEERS_LIST_BUTON_PROP
+        = "net.java.sip.communicator.impl.gui.main.call.HIDE_PEERS_LIST_BUTTON";
+
+    /**
+     * Indicates if the participants list in a video conference is visible by
+     * default.
+     */
+    private static final String PEERS_LIST_HIDDEN_PROP
+        = "net.java.sip.communicator.impl.gui.main.call.PEERS_LIST_HIDDEN";
+
     /**
      * Property to disable the desktop sharing button.
      */
@@ -330,6 +346,12 @@ public class CallPanel
      */
     private ShowHideVideoButton showHideVideoButton;
 
+    /**
+     * The button, which shows / hides the participants list in a video
+     * conference.
+     */
+    private ShowHidePeersButton showHidePeersButton;
+
     /**
      * The title of this call container.
      */
@@ -960,6 +982,12 @@ private void doUpdateSettingsPanelInEventDispatchThread(
             }
         }
 
+        if (showHidePeersButton != null)
+        {
+            showHidePeersButton.setVisible(isConference
+                && CallManager.isVideoStreaming(callConference));
+        }
+
         // The desktop sharing button depends on the operation set desktop
         // sharing server.
         if(desktopSharingButton != null)
@@ -1350,6 +1378,9 @@ private void initButtonIndexes()
             videoButton.setIndex(11);
         if (showHideVideoButton != null)
             showHideVideoButton.setIndex(12);
+        if (showHidePeersButton != null)
+            showHidePeersButton.setIndex(13);
+
         chatButton.setIndex(19);
 
         if (infoButton != null)
@@ -1523,6 +1554,14 @@ private void initializeUserInterfaceHierarchy()
             videoButton = new LocalVideoButton(aCall);
         }
 
+        if (isButtonEnabled(HIDE_PEERS_LIST_BUTON_PROP))
+        {
+            // If the PEERS_LIST_HIDDEN_PROP isn't specified we show the list
+            // by default.
+            showHidePeersButton = new ShowHidePeersButton(this,
+                isButtonEnabled(PEERS_LIST_HIDDEN_PROP));
+        }
+
         localLevel
             = new InputVolumeControlButton(
                     aCall,
@@ -1580,6 +1619,8 @@ private void initializeUserInterfaceHierarchy()
             settingsPanel.add(transferCallButton);
         if (videoButton != null)
             settingsPanel.add(videoButton);
+        if (showHidePeersButton != null)
+            settingsPanel.add(showHidePeersButton);
 
         // The bottom bar will contain the settingsPanel.
         add(createBottomBar(), BorderLayout.SOUTH);
@@ -2015,6 +2056,22 @@ void setFullScreen(boolean fullScreen)
         callWindow.setFullScreen(fullScreen);
     }
 
+    /**
+     * Shows/hides the thumbnails list in the case of video conference.
+     *
+     * @param show <tt>true</tt> to show the thumbnails list, <tt>false</tt>
+     * to hide it
+     */
+    public void showThumbnailsList(boolean show)
+    {
+        // This shouldn't happen, but if we aren't in a video conference we
+        // have nothing to do here.
+        if (!(callPanel instanceof VideoConferenceCallPanel))
+            return;
+
+        ((VideoConferenceCallPanel) callPanel).showThumbnailsList(show);
+    }
+
     /**
      * Selects or unselects the video button in this call dialog.
      *

src/net/java/sip/communicator/impl/gui/main/call/conference/ShowHidePeersButton.java

@@ -0,0 +1,58 @@
+/*
+ * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.gui.main.call.conference;
+
+import net.java.sip.communicator.impl.gui.main.call.*;
+import net.java.sip.communicator.impl.gui.utils.*;
+
+/**
+ * Implements an AWT/Swing button which toggles the display of the participants
+ * list in a conference call.
+ *
+ * @author Yana Stamcheva
+ */
+public class ShowHidePeersButton
+    extends AbstractCallToggleButton
+{
+    private static final long serialVersionUID = 0L;
+
+    /**
+     * The parent call container.
+     */
+    private final CallPanel callPanel;
+
+    /**
+     * Initializes a new <tt>ShowHideVideoButton</tt> instance which is to
+     * toggle the display of the visual <tt>Component</tt> which depicts the
+     * video streaming from the local peer/user to the remote peer(s).
+     *
+     * @param callPanel the parent call container
+     * @param selected <tt>true</tt> if the new toggle button is to be initially
+     * selected; otherwise, <tt>false</tt>
+     */
+    public ShowHidePeersButton(CallPanel callPanel, boolean selected)
+    {
+        super(  null,
+                true,
+                selected,
+                ImageLoader.SHOW_HIDE_PEERS_BUTTON,
+                ImageLoader.SHOW_HIDE_PEERS_BUTTON_PRESSED,
+                "service.gui.SHOW_HIDE_PEERS_TOOL_TIP");
+
+        this.callPanel = callPanel;
+    }
+
+    /**
+     * Toggles the display of the visual <tt>Component</tt> which depicts the
+     * video streaming from the local peer/user to the remote peer(s).
+     */
+    @Override
+    public void buttonPressed()
+    {
+        callPanel.showThumbnailsList(isSelected());
+    }
+}

src/net/java/sip/communicator/impl/gui/main/call/conference/VideoConferenceCallPanel.java

@@ -85,6 +85,8 @@ public void update(Observable o, Object arg)
      */
     private final ThumbnailConferenceCallPanel thumbnailContainer;
 
+    private final JPanel thumbnailPanel;
+
     /**
      * Initializes a new <tt>VideoConferenceCallPanel</tt> instance which is to
      * be used by a specific <tt>CallPanel</tt> to depict a specific
@@ -107,6 +109,7 @@ public VideoConferenceCallPanel(
 
         this.uiVideoHandler = uiVideoHandler;
 
+        thumbnailPanel = new JPanel(new BorderLayout());
         thumbnailContainer
             = new ThumbnailConferenceCallPanel( callPanel,
                                                 callConference,
@@ -260,7 +263,6 @@ private VideoContainer createVideoContainer()
     {
         VideoContainer videoContainer = new VideoContainer(null, true);
 
-        JPanel thumbnailPanel = new JPanel(new BorderLayout());
         thumbnailPanel.setBackground(Color.DARK_GRAY);
         thumbnailPanel.add(thumbnailContainer, BorderLayout.NORTH);
 
@@ -270,6 +272,17 @@ private VideoContainer createVideoContainer()
         return videoContainer;
     }
 
+    /**
+     * Shows/hides the participants thumbnails list.
+     *
+     * @param show <tt>true</tt> to show the participants list, <tt>false</tt>
+     * to hide it
+     */
+    public void showThumbnailsList(boolean show)
+    {
+        thumbnailPanel.setVisible(show);
+    }
+
     /**
      * {@inheritDoc}
      */

src/net/java/sip/communicator/impl/gui/utils/ImageLoader.java

@@ -777,6 +777,20 @@ public class ImageLoader
     public static final ImageID SHOW_LOCAL_VIDEO_BUTTON_PRESSED
         = new ImageID("service.gui.buttons.SHOW_LOCAL_VIDEO_BUTTON_PRESSED");
 
+    /**
+     * A show/hide local video button icon. The icon shown in the CallPeer
+     * panel.
+     */
+    public static final ImageID SHOW_HIDE_PEERS_BUTTON
+        = new ImageID("service.gui.buttons.SHOW_HIDE_PEERS_BUTTON");
+
+    /**
+     * A show/hide local video button pressed icon. The icon shown in the
+     * CallPeer panel.
+     */
+    public static final ImageID SHOW_HIDE_PEERS_BUTTON_PRESSED
+        = new ImageID("service.gui.buttons.SHOW_HIDE_PEERS_BUTTON_PRESSED");
+
     /**
      * The resize video button.
      */