1 files changed, 77 insertions, 0 deletions
diff --git a/org.eclipse.egit.ui/src/org/eclipse/egit/ui/internal/history/GenerateHistoryJob.java b/org.eclipse.egit.ui/src/org/eclipse/egit/ui/internal/history/GenerateHistoryJob.java
new file mode 100644
index 0000000000..be503a5f19
--- /dev/null
+++ b/org.eclipse.egit.ui/src/org/eclipse/egit/ui/internal/history/GenerateHistoryJob.java
@@ -0,0 +1,77 @@
+/*******************************************************************************
+ * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
+ *
+ * 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
+ *******************************************************************************/
+package org.eclipse.egit.ui.internal.history;
+
+import java.io.IOException;
+
+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.egit.ui.Activator;
+import org.eclipse.egit.ui.UIText;
+
+class GenerateHistoryJob extends Job {
+	private static final int BATCH_SIZE = 256;
+
+	private final GitHistoryPage page;
+
+	private final SWTCommitList allCommits;
+
+	private int lastUpdateCnt;
+
+	private long lastUpdateAt;
+
+	GenerateHistoryJob(final GitHistoryPage ghp, final SWTCommitList list) {
+		super(UIText.HistoryPage_refreshJob);
+		page = ghp;
+		allCommits = list;
+	}
+
+	@Override
+	protected IStatus run(final IProgressMonitor monitor) {
+		IStatus status = Status.OK_STATUS;
+		try {
+			try {
+				for (;;) {
+					final int oldsz = allCommits.size();
+					allCommits.fillTo(oldsz + BATCH_SIZE - 1);
+					if (monitor.isCanceled() || oldsz == allCommits.size())
+						break;
+
+					final long now = System.currentTimeMillis();
+					if (now - lastUpdateAt < 2000 && lastUpdateCnt > 0)
+						continue;
+					updateUI();
+					lastUpdateAt = now;
+				}
+			} catch (IOException e) {
+				status = new Status(IStatus.ERROR, Activator.getPluginId(),
+						"Cannot compute Git history.", e);
+			}
+
+			if (monitor.isCanceled())
+				return Status.CANCEL_STATUS;
+			updateUI();
+		} finally {
+			monitor.done();
+		}
+		return status;
+	}
+
+	void updateUI() {
+		if (allCommits.size() == lastUpdateCnt)
+			return;
+
+		final SWTCommit[] asArray = new SWTCommit[allCommits.size()];
+		allCommits.toArray(asArray);
+		page.showCommitList(this, allCommits, asArray);
+		lastUpdateCnt = allCommits.size();
+	}
+}