platform/lang-impl/src/com/intellij/tools/BaseToolKeymapExtension.java

/*
 * Copyright 2000-2013 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.tools;

import com.intellij.icons.AllIcons;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.ex.ActionManagerEx;
import com.intellij.openapi.keymap.KeyMapBundle;
import com.intellij.openapi.keymap.KeymapExtension;
import com.intellij.openapi.keymap.KeymapGroup;
import com.intellij.openapi.keymap.impl.ui.Group;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Condition;
import com.intellij.util.containers.HashMap;

import java.util.Arrays;

/**
 * @author traff
 */
public abstract class BaseToolKeymapExtension implements KeymapExtension {

  @Override
  public KeymapGroup createGroup(final Condition<AnAction> filtered, final Project project) {
    final ActionManagerEx actionManager = ActionManagerEx.getInstanceEx();
    String[] ids = actionManager.getActionIds(getActionIdPrefix());
    Arrays.sort(ids);
    Group group = new Group(getGroupName(), AllIcons.Nodes.KeymapTools);


    HashMap<String, Group> toolGroupNameToGroup = new HashMap<String, Group>();

    for (String id : ids) {
      if (filtered != null && !filtered.value(actionManager.getActionOrStub(id))) continue;
      String groupName = getGroupByActionId(id);

      if (groupName != null && groupName.trim().length() == 0) {
        groupName = null;
      }

      Group subGroup = toolGroupNameToGroup.get(groupName);
      if (subGroup == null) {
        subGroup = new Group(groupName, null, null);
        toolGroupNameToGroup.put(groupName, subGroup);
        if (groupName != null) {
          group.addGroup(subGroup);
        }
      }

      subGroup.addActionId(id);
    }

    Group subGroup = toolGroupNameToGroup.get(null);
    if (subGroup != null) {
      group.addAll(subGroup);
    }

    return group;
  }

  protected abstract String getActionIdPrefix();

  protected abstract String getGroupByActionId(String id);

  protected abstract String getGroupName();
}