plugins/ui-designer/src/com/intellij/uiDesigner/editor/UIFormEditorProvider.java

/*
 * Copyright 2000-2009 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.uiDesigner.editor;

import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.fileEditor.FileEditor;
import com.intellij.openapi.fileEditor.FileEditorPolicy;
import com.intellij.openapi.fileEditor.FileEditorProvider;
import com.intellij.openapi.fileEditor.FileEditorState;
import com.intellij.openapi.fileTypes.StdFileTypes;
import com.intellij.openapi.module.ModuleUtil;
import com.intellij.openapi.project.DumbAware;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Disposer;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.testFramework.LightVirtualFile;
import com.intellij.util.ArrayUtil;
import org.jdom.Element;
import org.jetbrains.annotations.NotNull;

public final class UIFormEditorProvider implements FileEditorProvider, DumbAware {
  private static final Logger LOG = Logger.getInstance("#com.intellij.uiDesigner.editor.UIFormEditorProvider");

  public boolean accept(@NotNull final Project project, @NotNull final VirtualFile file){
    return
      file.getFileType() == StdFileTypes.GUI_DESIGNER_FORM &&
      !StdFileTypes.GUI_DESIGNER_FORM.isBinary() &&
      (ModuleUtil.findModuleForFile(file, project) != null || file instanceof LightVirtualFile);
  }

  @NotNull public FileEditor createEditor(@NotNull final Project project, @NotNull final VirtualFile file){
    LOG.assertTrue(accept(project, file));
    return new UIFormEditor(project, file);
  }

  public void disposeEditor(@NotNull final FileEditor editor){
    Disposer.dispose(editor);
  }

  @NotNull
  public FileEditorState readState(@NotNull final Element element, @NotNull final Project project, @NotNull final VirtualFile file){
    //TODO[anton,vova] implement
    return new MyEditorState(-1, ArrayUtil.EMPTY_STRING_ARRAY);
  }

  public void writeState(@NotNull final FileEditorState state, @NotNull final Project project, @NotNull final Element element){
    //TODO[anton,vova] implement
  }

  @NotNull public String getEditorTypeId(){
    return "ui-designer";
  }

  @NotNull public FileEditorPolicy getPolicy() {
    return FileEditorPolicy.HIDE_DEFAULT_EDITOR;
  }
}