[vcs-log] speedsearch uses index and does not initiate loading details by trying to get them

platform/vcs-log/impl/src/com/intellij/vcs/log/data/index/IndexedDetails.java

@@ -45,10 +45,15 @@ public class IndexedDetails extends LoadingDetails {
   public String getSubject() {
     String message = myIndex.getFullMessage(myCommitIndex);
     if (message != null) {
-      int subjectEnd = message.indexOf("\n\n");
-      if (subjectEnd > 0) return message.substring(0, subjectEnd).replace("\n", " ");
-      return message.replace("\n", " ");
+      return getSubject(message);
     }
     return super.getSubject();
   }
+
+  @NotNull
+  public static String getSubject(@NotNull String fullMessage) {
+    int subjectEnd = fullMessage.indexOf("\n\n");
+    if (subjectEnd > 0) return fullMessage.substring(0, subjectEnd).replace("\n", " ");
+    return fullMessage.replace("\n", " ");
+  }
 }

platform/vcs-log/impl/src/com/intellij/vcs/log/ui/frame/IndexSpeedSearch.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright 2000-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.vcs.log.ui.frame;
+
+import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.vcs.log.data.VisiblePack;
+import com.intellij.vcs.log.data.index.IndexedDetails;
+import com.intellij.vcs.log.data.index.VcsLogIndex;
+import com.intellij.vcs.log.impl.VcsLogUtil;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Set;
+
+public class IndexSpeedSearch extends VcsLogSpeedSearch {
+  @NotNull private final VcsLogIndex myIndex;
+
+  public IndexSpeedSearch(@NotNull VcsLogIndex index, @NotNull VcsLogGraphTable component) {
+    super(component);
+    myIndex = index;
+  }
+
+  @Override
+  protected boolean isSpeedSearchEnabled() {
+    if (super.isSpeedSearchEnabled()) {
+      VisiblePack visiblePack = myComponent.getModel().getVisiblePack();
+      Set<VirtualFile> roots = visiblePack.getLogProviders().keySet();
+      Set<VirtualFile> visibleRoots = VcsLogUtil.getAllVisibleRoots(roots, visiblePack.getFilters().getRootFilter(),
+                                                                    visiblePack.getFilters().getStructureFilter());
+      for (VirtualFile root : visibleRoots) {
+        if (!myIndex.isIndexed(root)) return false;
+      }
+      return true;
+    }
+    return false;
+  }
+
+  @Nullable
+  @Override
+  protected String getElementText(@NotNull Object row) {
+    Integer id = myComponent.getModel().getIdAtRow((Integer)row);
+    String message = myIndex.getFullMessage(id);
+    if (message == null) return super.getElementText(row);
+    return IndexedDetails.getSubject(message);
+  }
+}

platform/vcs-log/impl/src/com/intellij/vcs/log/ui/frame/VcsLogGraphTable.java

@@ -131,18 +131,7 @@ public class VcsLogGraphTable extends TableWithProgress implements DataProvider,
 
     PopupHandler.installPopupHandler(this, VcsLogActionPlaces.POPUP_ACTION_GROUP, VcsLogActionPlaces.VCS_LOG_TABLE_PLACE);
     ScrollingUtil.installActions(this, false);
-    new VcsLogSpeedSearch(this) {
-      @Override
-      protected boolean isSpeedSearchEnabled() {
-        if (super.isSpeedSearchEnabled()) {
-          for (VirtualFile root : getModel().getVisiblePack().getLogProviders().keySet()) {
-            if (!myLogData.getIndex().isIndexed(root)) return false;
-          }
-          return true;
-        }
-        return false;
-      }
-    };
+    new IndexSpeedSearch(myLogData.getIndex(), this);
 
     initColumnSize();
     addComponentListener(new ComponentAdapter() {