1 files changed, 144 insertions, 0 deletions
diff --git a/platform/platform-impl/src/com/intellij/openapi/options/ex/ConfigurableVisitor.java b/platform/platform-impl/src/com/intellij/openapi/options/ex/ConfigurableVisitor.java
new file mode 100644
index 000000000000..7d820a255fb3
--- /dev/null
+++ b/platform/platform-impl/src/com/intellij/openapi/options/ex/ConfigurableVisitor.java
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2000-2014 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.openapi.options.ex;
+
+import com.intellij.openapi.options.Configurable;
+import com.intellij.openapi.options.ConfigurableGroup;
+import com.intellij.openapi.options.SearchableConfigurable;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author Sergey.Malenkov
+ */
+public abstract class ConfigurableVisitor {
+  public static final ConfigurableVisitor ALL = new ConfigurableVisitor() {
+    @Override
+    protected boolean accept(Configurable configurable) {
+      return true;
+    }
+  };
+
+  protected abstract boolean accept(Configurable configurable);
+
+  public final Configurable find(@NotNull ConfigurableGroup... groups) {
+    for (ConfigurableGroup group : groups) {
+      Configurable result = find(group.getConfigurables());
+      if (result != null) {
+        return result;
+      }
+    }
+    return null;
+  }
+
+  public final Configurable find(@NotNull Configurable... configurables) {
+    for (Configurable configurable : configurables) {
+      if (accept(configurable)) {
+        return configurable;
+      }
+    }
+    for (Configurable configurable : configurables) {
+      if (configurable instanceof Configurable.Composite) {
+        Configurable.Composite composite = (Configurable.Composite)configurable;
+        Configurable result = find(composite.getConfigurables());
+        if (result != null) {
+          return result;
+        }
+      }
+    }
+    return null;
+  }
+
+  public final List<Configurable> findAll(@NotNull ConfigurableGroup... groups) {
+    List<Configurable> list = new ArrayList<Configurable>();
+    for (ConfigurableGroup group : groups) {
+      add(list, group.getConfigurables());
+    }
+    return list;
+  }
+
+  public final List<Configurable> findAll(@NotNull Configurable... configurables) {
+    List<Configurable> list = new ArrayList<Configurable>();
+    add(list, configurables);
+    return list;
+  }
+
+  private void add(List<Configurable> list, Configurable... configurables) {
+    for (Configurable configurable : configurables) {
+      if (accept(configurable)) {
+        list.add(configurable);
+      }
+      if (configurable instanceof Configurable.Composite) {
+        Configurable.Composite composite = (Configurable.Composite)configurable;
+        add(list, composite.getConfigurables());
+      }
+    }
+  }
+
+  public static final class ByID extends ConfigurableVisitor {
+    private final String myID;
+
+    public ByID(@NotNull String id) {
+      myID = id;
+    }
+
+    @Override
+    protected boolean accept(Configurable configurable) {
+      return myID.equals(getID(configurable));
+    }
+
+    public static String getID(Configurable configurable) {
+      return configurable instanceof SearchableConfigurable
+             ? ((SearchableConfigurable)configurable).getId()
+             : configurable.getClass().getName();
+    }
+  }
+
+  public static final class ByName extends ConfigurableVisitor {
+    private final String myName;
+
+    public ByName(@NotNull String name) {
+      myName = name;
+    }
+
+    @Override
+    protected boolean accept(Configurable configurable) {
+      return myName.equals(configurable.getDisplayName());
+    }
+  }
+
+  public static final class ByType extends ConfigurableVisitor {
+    private final Class<? extends Configurable> myType;
+
+    public ByType(@NotNull Class<? extends Configurable> type) {
+      myType = type;
+    }
+
+    @Override
+    protected boolean accept(Configurable configurable) {
+      if (myType.isInstance(configurable)) {
+        return true;
+      }
+      if (configurable instanceof ConfigurableWrapper) {
+        ConfigurableWrapper wrapper = (ConfigurableWrapper)configurable;
+        return myType.isInstance(wrapper.getConfigurable());
+      }
+      return false;
+    }
+  }
+}