wiki-convert/wiki-asciidoc/DevFaqAddGlobalContext.asciidoc [259:409]: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - package com.emxsys.projectassistant; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.util.Collection; import java.util.logging.Level; import java.util.logging.Logger; import org.netbeans.api.project.FileOwnerQuery; import org.netbeans.api.project.Project; import org.netbeans.api.project.ProjectUtils; import org.netbeans.api.project.ui.OpenProjects; import org.netbeans.modules.openide.windows.GlobalActionContextImpl; import org.openide.explorer.ExplorerManager; import org.openide.loaders.DataObject; import org.openide.nodes.Node; import org.openide.util.ContextGlobalProvider; import org.openide.util.Lookup; import org.openide.util.Lookup.Result; import org.openide.util.Lookup.Template; import org.openide.util.LookupEvent; import org.openide.util.LookupListener; import org.openide.util.lookup.AbstractLookup; import org.openide.util.lookup.InstanceContent; import org.openide.util.lookup.ProxyLookup; import org.openide.util.lookup.ServiceProvider; import org.openide.windows.TopComponent; import org.openide.windows.WindowManager; /** * This class proxies the original ContextGlobalProvider and ensures the current project remains in * the GlobalContext regardless of the TopComponent selection. The class also ensures that when a * child node is selected within the in Projects tab, the parent Project will be in the lookup. * * To use this class you must edit the Windows System API module dependency: change the dependency * to an implementation version so that the org.netbeans.modules.openide.windows package is on the * classpath. * * @see ContextGlobalProvider * @see GlobalActionContextImpl * @author Bruce Schubert */ @ServiceProvider(service = ContextGlobalProvider.class, supersedes = "org.netbeans.modules.openide.windows.GlobalActionContextImpl") public class GlobalActionContextProxy implements ContextGlobalProvider { /** The native NetBeans global context Lookup provider */ private final GlobalActionContextImpl globalContextProvider; /** Additional content for our proxy lookup */ private final InstanceContent content; /** The primary lookup managed by the platform */ private Lookup globalContextLookup; /** The project lookup managed by resultChanged */ private Lookup projectLookup; /** The actual proxyLookup returned by this class */ private Lookup proxyLookup; /** A lookup result that we listen to for Projects */ private Result resultProjects; /** Listener for changes resultProjects */ private final LookupListener resultListener; /** Listener for changes on the TopComponent registry */ private final PropertyChangeListener registryListener; /** The last project selected */ private Project lastProject; /** Critical section lock */ private final Object lock = new Object(); private static final Logger logger = Logger.getLogger(GlobalActionContextProxy.class.getName()); public static final String PROJECT_LOGICAL_TAB_ID = "projectTabLogical_tc"; public static final String PROJECT_FILE_TAB_ID = "projectTab_tc"; public GlobalActionContextProxy() { this.content = new InstanceContent(); // The default GlobalContextProvider this.globalContextProvider = new GlobalActionContextImpl(); this.globalContextLookup = this.globalContextProvider.createGlobalContext(); // Monitor the activation of the Projects Tab TopComponent this.registryListener = new RegistryPropertyChangeListener(); TopComponent.getRegistry().addPropertyChangeListener(this.registryListener); // Monitor the existance of a Project in the principle lookup this.resultProjects = globalContextLookup.lookupResult(Project.class); this.resultListener = new LookupListenerImpl(); this.resultProjects.addLookupListener(this.resultListener); WindowManager.getDefault().invokeWhenUIReady(new Runnable() { @Override public void run() { // Hack to force the current Project selection when the application starts up TopComponent tc = WindowManager.getDefault().findTopComponent(PROJECT_LOGICAL_TAB_ID); if (tc != null) { tc.requestActive(); } } }); } /** * Returns a ProxyLookup that adds the current Project instance to the global selection * returned by Utilities.actionsGlobalContext(). * * @return a ProxyLookup that includes the original global context lookup. */ @Override public Lookup createGlobalContext() { if (proxyLookup == null) { logger.config("Creating a proxy for Utilities.actionsGlobalContext()"); // Create the two lookups that will make up the proxy projectLookup = new AbstractLookup(content); proxyLookup = new ProxyLookup(globalContextLookup, projectLookup); } return proxyLookup; } /** * This class populates the proxy lookup with the currently selected project * found in the Projects tab. */ private class RegistryPropertyChangeListener implements PropertyChangeListener { private TopComponent projectsTab = null; @Override public void propertyChange(PropertyChangeEvent event) { if (event.getPropertyName().equals(TopComponent.Registry.PROP_ACTIVATED_NODES) || event.getPropertyName().equals(TopComponent.Registry.PROP_ACTIVATED)) { // Get a reference to the Projects window if (projectsTab == null) { projectsTab = WindowManager.getDefault().findTopComponent(PROJECT_LOGICAL_TAB_ID); if (projectsTab == null) { logger.severe("propertyChange: cannot find the Projects logical window (" + PROJECT_LOGICAL_TAB_ID + ")"); return; } } // Look for the current project in the Projects window when activated and handle // special case at startup when lastProject hasn't been initialized. Node[] nodes = null; TopComponent activated = TopComponent.getRegistry().getActivated(); - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - wiki-export/wiki-wikimedia/DevFaqAddGlobalContext.mediawiki [233:383]: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - package com.emxsys.projectassistant; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.util.Collection; import java.util.logging.Level; import java.util.logging.Logger; import org.netbeans.api.project.FileOwnerQuery; import org.netbeans.api.project.Project; import org.netbeans.api.project.ProjectUtils; import org.netbeans.api.project.ui.OpenProjects; import org.netbeans.modules.openide.windows.GlobalActionContextImpl; import org.openide.explorer.ExplorerManager; import org.openide.loaders.DataObject; import org.openide.nodes.Node; import org.openide.util.ContextGlobalProvider; import org.openide.util.Lookup; import org.openide.util.Lookup.Result; import org.openide.util.Lookup.Template; import org.openide.util.LookupEvent; import org.openide.util.LookupListener; import org.openide.util.lookup.AbstractLookup; import org.openide.util.lookup.InstanceContent; import org.openide.util.lookup.ProxyLookup; import org.openide.util.lookup.ServiceProvider; import org.openide.windows.TopComponent; import org.openide.windows.WindowManager; /** * This class proxies the original ContextGlobalProvider and ensures the current project remains in * the GlobalContext regardless of the TopComponent selection. The class also ensures that when a * child node is selected within the in Projects tab, the parent Project will be in the lookup. * * To use this class you must edit the Windows System API module dependency: change the dependency * to an implementation version so that the org.netbeans.modules.openide.windows package is on the * classpath. * * @see ContextGlobalProvider * @see GlobalActionContextImpl * @author Bruce Schubert */ @ServiceProvider(service = ContextGlobalProvider.class, supersedes = "org.netbeans.modules.openide.windows.GlobalActionContextImpl") public class GlobalActionContextProxy implements ContextGlobalProvider { /** The native NetBeans global context Lookup provider */ private final GlobalActionContextImpl globalContextProvider; /** Additional content for our proxy lookup */ private final InstanceContent content; /** The primary lookup managed by the platform */ private Lookup globalContextLookup; /** The project lookup managed by resultChanged */ private Lookup projectLookup; /** The actual proxyLookup returned by this class */ private Lookup proxyLookup; /** A lookup result that we listen to for Projects */ private Result resultProjects; /** Listener for changes resultProjects */ private final LookupListener resultListener; /** Listener for changes on the TopComponent registry */ private final PropertyChangeListener registryListener; /** The last project selected */ private Project lastProject; /** Critical section lock */ private final Object lock = new Object(); private static final Logger logger = Logger.getLogger(GlobalActionContextProxy.class.getName()); public static final String PROJECT_LOGICAL_TAB_ID = "projectTabLogical_tc"; public static final String PROJECT_FILE_TAB_ID = "projectTab_tc"; public GlobalActionContextProxy() { this.content = new InstanceContent(); // The default GlobalContextProvider this.globalContextProvider = new GlobalActionContextImpl(); this.globalContextLookup = this.globalContextProvider.createGlobalContext(); // Monitor the activation of the Projects Tab TopComponent this.registryListener = new RegistryPropertyChangeListener(); TopComponent.getRegistry().addPropertyChangeListener(this.registryListener); // Monitor the existance of a Project in the principle lookup this.resultProjects = globalContextLookup.lookupResult(Project.class); this.resultListener = new LookupListenerImpl(); this.resultProjects.addLookupListener(this.resultListener); WindowManager.getDefault().invokeWhenUIReady(new Runnable() { @Override public void run() { // Hack to force the current Project selection when the application starts up TopComponent tc = WindowManager.getDefault().findTopComponent(PROJECT_LOGICAL_TAB_ID); if (tc != null) { tc.requestActive(); } } }); } /** * Returns a ProxyLookup that adds the current Project instance to the global selection * returned by Utilities.actionsGlobalContext(). * * @return a ProxyLookup that includes the original global context lookup. */ @Override public Lookup createGlobalContext() { if (proxyLookup == null) { logger.config("Creating a proxy for Utilities.actionsGlobalContext()"); // Create the two lookups that will make up the proxy projectLookup = new AbstractLookup(content); proxyLookup = new ProxyLookup(globalContextLookup, projectLookup); } return proxyLookup; } /** * This class populates the proxy lookup with the currently selected project * found in the Projects tab. */ private class RegistryPropertyChangeListener implements PropertyChangeListener { private TopComponent projectsTab = null; @Override public void propertyChange(PropertyChangeEvent event) { if (event.getPropertyName().equals(TopComponent.Registry.PROP_ACTIVATED_NODES) || event.getPropertyName().equals(TopComponent.Registry.PROP_ACTIVATED)) { // Get a reference to the Projects window if (projectsTab == null) { projectsTab = WindowManager.getDefault().findTopComponent(PROJECT_LOGICAL_TAB_ID); if (projectsTab == null) { logger.severe("propertyChange: cannot find the Projects logical window (" + PROJECT_LOGICAL_TAB_ID + ")"); return; } } // Look for the current project in the Projects window when activated and handle // special case at startup when lastProject hasn't been initialized. Node[] nodes = null; TopComponent activated = TopComponent.getRegistry().getActivated(); - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -