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Diffstat (limited to 'jsf/plugins/org.eclipse.jst.jsf.ui/src/org/eclipse/jst/jsf/ui/internal/tagregistry/TaglibContentProvider.java')
-rw-r--r--jsf/plugins/org.eclipse.jst.jsf.ui/src/org/eclipse/jst/jsf/ui/internal/tagregistry/TaglibContentProvider.java441
1 files changed, 0 insertions, 441 deletions
diff --git a/jsf/plugins/org.eclipse.jst.jsf.ui/src/org/eclipse/jst/jsf/ui/internal/tagregistry/TaglibContentProvider.java b/jsf/plugins/org.eclipse.jst.jsf.ui/src/org/eclipse/jst/jsf/ui/internal/tagregistry/TaglibContentProvider.java
deleted file mode 100644
index 2d7bbdf83..000000000
--- a/jsf/plugins/org.eclipse.jst.jsf.ui/src/org/eclipse/jst/jsf/ui/internal/tagregistry/TaglibContentProvider.java
+++ /dev/null
@@ -1,441 +0,0 @@
-package org.eclipse.jst.jsf.ui.internal.tagregistry;
-
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.atomic.AtomicLong;
-
-import org.eclipse.core.resources.IProject;
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.core.runtime.jobs.Job;
-import org.eclipse.jface.dialogs.MessageDialog;
-import org.eclipse.jface.viewers.IStructuredContentProvider;
-import org.eclipse.jface.viewers.ITreeContentProvider;
-import org.eclipse.jface.viewers.StructuredViewer;
-import org.eclipse.jface.viewers.Viewer;
-import org.eclipse.jst.jsf.common.runtime.internal.view.model.common.Namespace;
-import org.eclipse.jst.jsf.core.internal.CompositeTagRegistryFactory;
-import org.eclipse.jst.jsf.core.internal.TagRegistryFactoryInfo;
-import org.eclipse.jst.jsf.designtime.internal.view.model.ITagRegistry;
-import org.eclipse.jst.jsf.designtime.internal.view.model.TagRegistryFactory;
-import org.eclipse.jst.jsf.designtime.internal.view.model.ITagRegistry.TagRegistryChangeEvent;
-import org.eclipse.jst.jsf.designtime.internal.view.model.ITagRegistry.TagRegistryChangeEvent.EventType;
-import org.eclipse.jst.jsf.designtime.internal.view.model.TagRegistryFactory.TagRegistryFactoryException;
-import org.eclipse.jst.jsf.ui.internal.JSFUiPlugin;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.ui.PlatformUI;
-
-/**
- * Structured content provider for tag libraries.
- *
- * @author cbateman
- *
- */
-public class TaglibContentProvider implements IStructuredContentProvider,
- ITreeContentProvider, ITagRegistry.ITagRegistryListener
-{
- private final static Object[] NO_CHILDREN = new Object[0];
- private IProject _curInput;
- private Map<ITagRegistry, TagRegistryInstance> _curTagRegistries =
- new HashMap<ITagRegistry, TagRegistryInstance>();
- private Viewer _curViewer;
- private final AtomicLong _changeStamp = new AtomicLong(
- 0);
-
- public Object[] getElements(final Object inputElement)
- {
-
- if (inputElement instanceof IProject)
- {
- return _curTagRegistries.values().toArray();
- // return _rootNamespaces.values().toArray();
- }
-
- return NO_CHILDREN;
- }
-
- public void dispose()
- {
- // nothing to do
- }
-
- public void inputChanged(final Viewer viewer, final Object oldInput,
- final Object newInput)
- {
- // update our change stamp to invalid outstanding update tasks
- _changeStamp.incrementAndGet();
- _curViewer = viewer;
-
- if (oldInput instanceof IProject)
- {
- for (final TagRegistryInstance tagRegistry : _curTagRegistries.values())
- {
- tagRegistry.getRegistry().removeListener(this);
- }
- }
-
- if (newInput instanceof IProject)
- {
- _curInput = (IProject) newInput;
-
- final Set<TagRegistryFactoryInfo> factories = CompositeTagRegistryFactory
- .getInstance().getAllTagRegistryFactories();
-
- _curTagRegistries.clear();
-
- for (TagRegistryFactoryInfo factoryInfo : factories)
- {
- TagRegistryFactory factory = factoryInfo
- .getTagRegistryFactory();
- ITagRegistry registry;
- try
- {
- registry = factory.createTagRegistry(_curInput);
- if (registry != null)
- {
- final TagRegistryInstance registryInstance =
- new TagRegistryInstance(factoryInfo, registry);
- _curTagRegistries.put(registry, registryInstance);
- registry.addListener(this);
-
- new UpdateNamespacesListJob(_curInput, _changeStamp.get(),
- registryInstance).schedule();
- }
- }
- catch (TagRegistryFactoryException e)
- {
- JSFUiPlugin.log(IStatus.ERROR,
- "Problem getting tag registry", e);
- }
- }
- }
- else
- {
- _curInput = null;
- _curTagRegistries.clear();
- }
- }
-
- public Object[] getChildren(final Object parentElement)
- {
- if (parentElement instanceof IProject)
- {
- return _curTagRegistries.values().toArray();
- }
- else if (parentElement instanceof TagRegistryInstance)
- {
- final TagRegistryInstance regInstance = (TagRegistryInstance) parentElement;
-
- if (!regInstance.isUpToDate())
- {
- return new Object[] {new TreePlaceholder("Calculating...", null)};
- }
- return regInstance.getNamespaces().values().toArray();
- }
- else if (parentElement instanceof Namespace)
- {
- final Namespace ns = (Namespace) parentElement;
-
- // this could be very expensive if not initialized
- if (ns.isInitialized())
- {
- return ((Namespace) parentElement).getViewElements().toArray();
- }
-
- // fire up a job that ensures the namespace is initialized
- // and then fires refresh again on this element
- final Job updateNamespaceJob = new Job("Updating namespace")
- {
- @Override
- protected IStatus run(final IProgressMonitor monitor)
- {
- ns.getViewElements();
- PlatformUI.getWorkbench().getDisplay().asyncExec(
- new Runnable()
- {
- public void run()
- {
- // avoid infinite recursion
- if (ns.isInitialized())
- {
- TaglibContentProvider.this
- .viewerRefresh(ns);
- }
- else
- {
- MessageDialog
- .openError(
- Display
- .getCurrent()
- .getActiveShell(),
- "Error updating namespace",
- "There was a problem initializing the namespace");
- }
- }
- });
- return Status.OK_STATUS;
- }
- };
-
- updateNamespaceJob.schedule();
-
- return new Object[]
- { new TreePlaceholder("Calculating tags, please wait...", null) };
- }
-// else if (parentElement instanceof IJSFTagElement)
-// {
-// return new Object[]
-// { ((IJSFTagElement) parentElement).toString() };
-// }
-
- return NO_CHILDREN;
- }
-
- public Object getParent(final Object element)
- {
- // no support for parent traversal right now
- return null;
- }
-
- public boolean hasChildren(final Object element)
- {
- // avoid an infinite refresh loop on the namespaces in the tag registry
- if (element instanceof TagRegistryInstance)
- {
- return true;
- }
- // finding all children of a namespace can be expensive
- else if (element instanceof Namespace)
- {
- return ((Namespace) element).hasViewElements();
- }
- return getChildren(element).length > 0;
- }
-
- public void registryChanged(final TagRegistryChangeEvent changeEvent)
- {
- if (_curViewer != null)
- {
- TagRegistryInstance registryInstance =
- _curTagRegistries.get(changeEvent.getSource());
-
- if (registryInstance != null)
- {
- _curViewer.getControl().getDisplay().asyncExec(
- new RegistryChangeTask(changeEvent.getType(), changeEvent
- .getAffectedObjects(), _changeStamp.get(),registryInstance));
- }
- }
- }
-
- private final class RegistryChangeTask implements Runnable
- {
- private final EventType _eventType;
- private final long _timestamp;
- private final List<? extends Namespace> _affectedObjects;
- private final TagRegistryInstance _registryInstance;
-
- RegistryChangeTask(final TagRegistryChangeEvent.EventType eventType,
- final List<? extends Namespace> affectedObjects,
- final long timestamp, final TagRegistryInstance registryInstance)
- {
- _eventType = eventType;
- _timestamp = timestamp;
- _affectedObjects = affectedObjects;
- _registryInstance = registryInstance;
- }
-
- public void run()
- {
- // if changes have been made since this task was queued, then abort
- // since we don't know if our data is still valid
- if (_timestamp != TaglibContentProvider.this._changeStamp.get())
- {
- return;
- }
-
- switch (_eventType)
- {
- case ADDED_NAMESPACE:
- case CHANGED_NAMESPACE:
- {
- for (final Namespace ns : _affectedObjects)
- {
- _registryInstance.getNamespaces().put(ns.getNSUri(), ns);
- }
-
- viewerRefresh(_curInput);
- }
- break;
-
- case REMOVED_NAMESPACE:
- {
- for (final Namespace ns : _affectedObjects)
- {
- _registryInstance.getNamespaces().remove(ns.getNSUri());
- }
- viewerRefresh(_curInput);
- }
- break;
-
- case REGISTRY_DISPOSED:
- {
- _registryInstance.getRegistry().removeListener(TaglibContentProvider.this);
- _curTagRegistries.remove(_registryInstance);
- viewerRefresh(_curInput);
- }
- }
- }
- }
-
- private void viewerRefresh(final Object parentElement)
- {
- if (_curViewer instanceof StructuredViewer)
- {
- final StructuredViewer viewer = (StructuredViewer) _curViewer;
- viewer.refresh(parentElement);
- }
- else
- {
- _curViewer.refresh();
- }
- }
-
- private class UpdateNamespacesListJob extends Job
- {
-
- private final long _timestamp;
- private final IProject _project;
- private final TagRegistryInstance _registry;
-
- public UpdateNamespacesListJob(final IProject project,
- final long timestamp, final TagRegistryInstance registry)
- {
- super("Updating available namespaces for project "
- + project.getName());
- _project = project;
- _timestamp = timestamp;
- _registry = registry;
- }
-
- @Override
- protected IStatus run(final IProgressMonitor monitor)
- {
- if (!_project.isAccessible()
- || _registry.isUpToDate())
- {
- return new Status(IStatus.CANCEL, JSFUiPlugin.PLUGIN_ID, "");
- }
-
- final Collection<? extends Namespace> libs = _registry.getRegistry()
- .getAllTagLibraries();
- _registry.getNamespaces().clear();
-
- for (Namespace ns : libs)
- {
- if (ns.getNSUri() != null)
- {
- _registry.getNamespaces().put(ns.getNSUri(), ns);
-
- }
- }
-
- _registry.setUpToDate(true);
- PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable()
- {
- public void run()
- {
- // only bother if the provider hasn't changed asynchronously
- if (_timestamp == TaglibContentProvider.this._changeStamp
- .get())
- {
- viewerRefresh(_curInput);
- }
- }
- });
-
- return Status.OK_STATUS;
- }
- }
-
- static class TagRegistryInstance
- {
- private final TagRegistryFactoryInfo _info;
- private final ITagRegistry _registry;
- private final Map<String, Namespace> _namespaces;
- private boolean _isUpToDate;
-
- public TagRegistryInstance(final TagRegistryFactoryInfo info,
- ITagRegistry registry)
- {
- _info = info;
- _registry = registry;
- _namespaces = new ConcurrentHashMap<String, Namespace>();
- }
-
- public TagRegistryFactoryInfo getInfo()
- {
- return _info;
- }
-
- public ITagRegistry getRegistry()
- {
- return _registry;
- }
-
- public Map<String, Namespace> getNamespaces()
- {
- return _namespaces;
- }
-
- public synchronized boolean isUpToDate()
- {
- return _isUpToDate;
- }
-
- public synchronized void setUpToDate(boolean isUpToDate)
- {
- _isUpToDate = isUpToDate;
- }
- }
-
- /**
- * Takes the place of a real tree model object while the real object is
- * being retrieved.
- *
- */
- public static class TreePlaceholder
- {
- private final String _text;
- private final Image _image;
-
- TreePlaceholder(final String text, final Image image)
- {
- _text = text;
- _image = image;
- }
-
- /**
- * @return the placeholder text or null if none
- */
- public String getText()
- {
- return _text;
- }
-
- /**
- * @return the image or null if none
- */
- public Image getImage()
- {
- return _image;
- }
-
- }
-}

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