/**
* Adds the plugin component given by <tt>event</tt> to this panel if it's its container.
*
* @param event the <tt>PluginComponentEvent</tt> that notified us
*/
public void pluginComponentAdded(PluginComponentEvent event) {
PluginComponentFactory factory = event.getPluginComponentFactory();
// If the container id doesn't correspond to the id of the plugin
// container we're not interested.
if (!factory.getContainer().equals(Container.CONTAINER_CONTACT_LIST)) return;
Object constraints =
UIServiceImpl.getBorderLayoutConstraintsFromContainer(factory.getConstraints());
if (constraints == null) constraints = BorderLayout.SOUTH;
PluginComponent pluginComponent = factory.getPluginComponentInstance(this);
this.add((Component) pluginComponent.getComponent(), constraints);
Object selectedValue = getContactList().getSelectedValue();
if (selectedValue instanceof MetaContact) {
pluginComponent.setCurrentContact((MetaContact) selectedValue);
} else if (selectedValue instanceof MetaContactGroup) {
pluginComponent.setCurrentContactGroup((MetaContactGroup) selectedValue);
}
this.revalidate();
this.repaint();
}
/**
* Runs clean-up for associated resources which need explicit disposal (e.g. listeners keeping
* this instance alive because they were added to the model which operationally outlives this
* instance).
*/
public void dispose() {
GuiActivator.getUIService().removePluginComponentListener(this);
/*
* Explicitly remove the components of the PluginComponent instances
* because the latter are registered with OSGi and are thus global.
*/
synchronized (this) {
for (PluginComponent pluginComponent : pluginComponents)
container.remove((Component) pluginComponent.getComponent());
pluginComponents.clear();
}
}
/**
* Adds the component of a specific <tt>PluginComponent</tt> to the associated <tt>Container</tt>.
*
* @param c the <tt>PluginComponent</tt> which is to have its component added to the
* <tt>Container</tt> associated with this <tt>PluginContainer</tt>
*/
private synchronized void addPluginComponent(PluginComponent c) {
/*
* Try to respect positionIndex of PluginComponent to some extent:
* PluginComponents with positionIndex equal to 0 go at the beginning,
* these with positionIndex equal to -1 follow them and then go these
* with positionIndex greater than 0.
*/
int cIndex = c.getPositionIndex();
int index = -1;
int i = 0;
for (PluginComponent pluginComponent : pluginComponents) {
if (pluginComponent.equals(c)) return;
if (-1 == index) {
int pluginComponentIndex = pluginComponent.getPositionIndex();
if ((0 == cIndex) || (-1 == cIndex)) {
if ((0 != pluginComponentIndex) && (cIndex != pluginComponentIndex)) index = i;
} else if (cIndex < pluginComponentIndex) index = i;
}
i++;
}
int pluginComponentCount = pluginComponents.size();
if (-1 == index) index = pluginComponents.size();
/*
* The container may have added Components of its own apart from the
* ones this PluginContainer has added to it. Since the common case for
* the additional Components is to have them appear at the beginning,
* adjust the index so it gets correct in the common case.
*/
int containerComponentCount = getComponentCount(container);
addComponentToContainer(
(Component) c.getComponent(),
container,
(containerComponentCount > pluginComponentCount)
? (index + (containerComponentCount - pluginComponentCount))
: index);
pluginComponents.add(index, c);
container.revalidate();
container.repaint();
}
private void initPluginComponents() {
// Search for plugin components registered through the OSGI bundle
// context.
ServiceReference[] serRefs = null;
String osgiFilter =
"(" + Container.CONTAINER_ID + "=" + Container.CONTAINER_CONTACT_LIST.getID() + ")";
try {
serRefs =
GuiActivator.bundleContext.getServiceReferences(
PluginComponentFactory.class.getName(), osgiFilter);
} catch (InvalidSyntaxException exc) {
logger.error("Could not obtain plugin reference.", exc);
}
if (serRefs != null) {
for (ServiceReference serRef : serRefs) {
PluginComponentFactory factory =
(PluginComponentFactory) GuiActivator.bundleContext.getService(serRef);
PluginComponent component = factory.getPluginComponentInstance(this);
Object selectedValue = getContactList().getSelectedValue();
if (selectedValue instanceof MetaContact) {
component.setCurrentContact((MetaContact) selectedValue);
} else if (selectedValue instanceof MetaContactGroup) {
component.setCurrentContactGroup((MetaContactGroup) selectedValue);
}
String pluginConstraints = factory.getConstraints();
Object constraints;
if (pluginConstraints != null)
constraints = UIServiceImpl.getBorderLayoutConstraintsFromContainer(pluginConstraints);
else constraints = BorderLayout.SOUTH;
this.add((Component) component.getComponent(), constraints);
this.repaint();
}
}
GuiActivator.getUIService().addPluginComponentListener(this);
}
/**
* Removes the component of a specific <code>PluginComponent</code> from this <code>
* PluginContainer</code>.
*
* @param c the <code>PluginComponent</code> which is to have its component removed from this
* <code>PluginContainer</code>
*/
private synchronized void removePluginComponent(PluginComponent c) {
container.remove((Component) c.getComponent());
pluginComponents.remove(c);
}