NEW - bug 378003: [activity] integrate a section with an empty tree

viewer in the Task Editor; the section is now integrated in the task
editor and not in a new page
https://bugs.eclipse.org/bugs/show_bug.cgi?id=378003

Change-Id: Ida40425be75ef23126abe91ff365c34ae1ab801e

2 files changed, 124 insertions, 0 deletions

diff --git a/org.eclipse.mylyn.tasks.activity.ui/src/org/eclipse/mylyn/internal/tasks/activity/ui/ActivityPart.java b/org.eclipse.mylyn.tasks.activity.ui/src/org/eclipse/mylyn/internal/tasks/activity/ui/ActivityPart.java
new file mode 100644
index 000000000..e04927acc
--- /dev/null
+++ b/org.eclipse.mylyn.tasks.activity.ui/src/org/eclipse/mylyn/internal/tasks/activity/ui/ActivityPart.java
@@ -0,0 +1,63 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Timur Achmetow and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Timur Achmetow - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.mylyn.internal.tasks.activity.ui;
+
+import org.eclipse.jface.layout.GridDataFactory;
+import org.eclipse.jface.viewers.TreeViewer;
+import org.eclipse.mylyn.internal.tasks.activity.core.ActivityManager;
+import org.eclipse.mylyn.tasks.activity.core.IActivityStream;
+import org.eclipse.mylyn.tasks.activity.core.TaskActivityScope;
+import org.eclipse.mylyn.tasks.ui.editors.AbstractTaskEditorPart;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.ui.forms.widgets.FormToolkit;
+import org.eclipse.ui.forms.widgets.Section;
+
+/**
+ * @author Timur Achmetow
+ */
+@SuppressWarnings("restriction")
+public class ActivityPart extends AbstractTaskEditorPart {
+	public ActivityPart() {
+		setPartName("Activity"); //$NON-NLS-1$
+		setExpandVertically(true);
+	}
+
+	@Override
+	public void createControl(Composite parent, FormToolkit toolkit) {
+		final Section section = createSection(parent, toolkit, false);
+		section.setText("Activity"); //$NON-NLS-1$
+
+		Composite activityComposite = toolkit.createComposite(section);
+		activityComposite.setLayout(new GridLayout(1, false));
+		activityComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
+
+		createTreeViewer(toolkit, activityComposite);
+
+		toolkit.paintBordersFor(activityComposite);
+		section.setClient(activityComposite);
+		setSection(toolkit, section);
+	}
+
+	private void createTreeViewer(FormToolkit toolkit, Composite activityComposite) {
+		TreeViewer viewer = new TreeViewer(toolkit.createTree(activityComposite, SWT.MULTI | SWT.H_SCROLL
+				| SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER));
+		GridDataFactory.fillDefaults().hint(500, 100).grab(true, true).applyTo(viewer.getControl());
+		viewer.getTree().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+		viewer.setContentProvider(new ActivityRecordContentProvider());
+//		viewer.setLabelProvider(new DecoratingStyledCellLabelProvider(new ActivityRecordLabelProvider(), null, null));
+		IActivityStream stream = new ActivityManager().getStream(new TaskActivityScope(getModel().getTask()));
+		viewer.setInput(stream);
+	}
+}
\ No newline at end of file
diff --git a/org.eclipse.mylyn.tasks.activity.ui/src/org/eclipse/mylyn/internal/tasks/activity/ui/ActivityRecordContentProvider.java b/org.eclipse.mylyn.tasks.activity.ui/src/org/eclipse/mylyn/internal/tasks/activity/ui/ActivityRecordContentProvider.java
new file mode 100644
index 000000000..6763e6b15
--- /dev/null
+++ b/org.eclipse.mylyn.tasks.activity.ui/src/org/eclipse/mylyn/internal/tasks/activity/ui/ActivityRecordContentProvider.java
@@ -0,0 +1,61 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Timur Achmetow and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Timur Achmetow - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.mylyn.internal.tasks.activity.ui;
+
+import java.util.List;
+
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.Viewer;
+import org.eclipse.mylyn.tasks.activity.core.ActivityEvent;
+import org.eclipse.mylyn.tasks.activity.core.IActivityStream;
+
+/**
+ * @author Timur Achmetow
+ */
+@SuppressWarnings("restriction")
+public class ActivityRecordContentProvider implements ITreeContentProvider {
+	private static final Object[] NO_ELEMENTS = new Object[0];
+
+	private List<ActivityEvent> eventList;
+
+	public void dispose() {
+		eventList = null;
+	}
+
+	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+		if (newInput instanceof IActivityStream) {
+			eventList = ((IActivityStream) newInput).getEvents();
+		}
+	}
+
+	public Object[] getElements(Object inputElement) {
+		return eventList.toArray();
+	}
+
+	public Object[] getChildren(Object parentElement) {
+//		if (parentElement instanceof ActivityCommitEvent) {
+//			return ((ActivityCommitEvent) parentElement).getChanges().toArray();
+//		}
+		return NO_ELEMENTS;
+	}
+
+	public Object getParent(Object element) {
+		return null;
+	}
+
+	public boolean hasChildren(Object element) {
+//		if (element instanceof ActivityCommitEvent) {
+//			return true;
+//		}
+		return false;
+	}
+}
\ No newline at end of file