[EGIT PATCH 3/5] Move dcocument to repository mapping to GitDocument

[Robin Rosenberg <robin.rosenberg@xxxxxxxxxx>]

Signed-off-by: Robin Rosenberg <robin.rosenberg@xxxxxxxxxx>
---
 .../egit/ui/internal/decorators/GitDocument.java   |   23 ++++++++++++++++++-
 .../internal/decorators/GitQuickDiffProvider.java  |    8 +------
 2 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/GitDocument.java b/org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/GitDocument.java
index 69e9295..8c82a55 100644
--- a/org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/GitDocument.java
+++ b/org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/GitDocument.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@xxxxxxxxxx>
+ * Copyright (C) 2008, 2009 Robin Rosenberg <robin.rosenberg@xxxxxxxxxx>
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
@@ -8,6 +8,8 @@
 package org.spearce.egit.ui.internal.decorators;
 
 import java.io.IOException;
+import java.util.Map;
+import java.util.WeakHashMap;
 
 import org.eclipse.core.resources.IEncodedStorage;
 import org.eclipse.core.resources.IProject;
@@ -29,6 +31,7 @@
 
 class GitDocument extends Document implements RepositoryListener {
 	private final IResource resource;
+	static Map<GitDocument,Repository> doc2repo = new WeakHashMap<GitDocument, Repository>();
 
 	static GitDocument create(final IResource resource) throws IOException {
 		GitDocument ret = null;
@@ -44,7 +47,7 @@ static GitDocument create(final IResource resource) throws IOException {
 
 	private GitDocument(IResource resource) {
 		this.resource = resource;
-		GitQuickDiffProvider.doc2repo.put(this, getRepository());
+		GitDocument.doc2repo.put(this, getRepository());
 	}
 
 	void populate() throws IOException {
@@ -95,6 +98,7 @@ void populate() throws IOException {
 	}
 
 	void dispose() {
+		doc2repo.remove(this);
 		Repository repository = getRepository();
 		if (repository != null)
 			repository.removeRepositoryChangedListener(this);
@@ -119,4 +123,19 @@ private Repository getRepository() {
 			return mapping.getRepository();
 		return null;
 	}
+
+	/**
+	 * A change occurred to a repository. Update any GitDocument instances
+	 * referring to such repositories.
+	 * 
+	 * @param repository Repository which changed 
+	 * @throws IOException
+	 */
+	static void refreshRelevant(final Repository repository) throws IOException {
+		for (Map.Entry<GitDocument, Repository> i : doc2repo.entrySet()) {
+			if (i.getValue() == repository) {
+				i.getKey().populate();
+			}
+		}
+	}
 }
diff --git a/org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/GitQuickDiffProvider.java b/org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/GitQuickDiffProvider.java
index 88f5ea0..6c71f3c 100644
--- a/org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/GitQuickDiffProvider.java
+++ b/org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/GitQuickDiffProvider.java
@@ -37,7 +37,6 @@
 	private IResource resource;
 
 	static Map<Repository,String> baseline = new WeakHashMap<Repository,String>();
-	static Map<GitDocument,Repository> doc2repo = new WeakHashMap<GitDocument, Repository>();
 
 	/**
 	 * Create the GitQuickDiffProvider instance
@@ -48,7 +47,6 @@ public GitQuickDiffProvider() {
 
 	public void dispose() {
 		Activator.trace("(GitQuickDiffProvider) dispose");
-		doc2repo.remove(document);
 		if (document != null)
 			document.dispose();
 	}
@@ -96,11 +94,7 @@ public void setId(String id) {
 	 */
 	public static void setBaselineReference(final Repository repository, final String baseline) throws IOException {
 		GitQuickDiffProvider.baseline.put(repository, baseline);
-		for (Map.Entry<GitDocument, Repository> i : doc2repo.entrySet()) {
-			if (i.getValue() == repository) {
-				i.getKey().populate();
-			}
-		}
+		GitDocument.refreshRelevant(repository);
 	}
 
 }
-- 
1.6.2.1.345.g89fb

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