Package qwickie.hyperlink

Source Code of qwickie.hyperlink.WicketComponentHyperlink

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 qwickie.hyperlink;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IResourceVisitor;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.hyperlink.IHyperlink;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.ide.IDE;

/**
* @author count.negative
*/
public class WicketComponentHyperlink implements IHyperlink {

  private final String wcName;
  private final IRegion region;
  private IFile file;

  public WicketComponentHyperlink(final IRegion region, final String wcName) {
    Assert.isNotNull(wcName);
    Assert.isNotNull(region);

    this.region = region;
    this.wcName = wcName;
    findFile(wcName + ".html");
  }

  public IRegion getHyperlinkRegion() {
    return this.region;
  }

  public void open() {
    if (this.wcName != null) {
      final IWorkbench workbench = PlatformUI.getWorkbench();
      final IWorkbenchPage activePage = workbench.getActiveWorkbenchWindow().getActivePage();

      try {
        if (file != null && file.exists()) {
          IDE.openEditor(activePage, file, true);
        }
      } catch (final PartInitException pie) {
        return;
      }
    }
  }

  private void findFile(final String filename) {
    if (filename != null) {
      IResource[] members;
      try {
        members = ResourcesPlugin.getWorkspace().getRoot().members();
        for (int i = 0; i < members.length; i++) {
          final IResource member = members[i];

          if (member.isAccessible()) {
            member.getProject().accept(new IResourceVisitor() {

              public boolean visit(final IResource resource) throws CoreException {
                if (resource.getName().equals(filename)) {
                  file = ResourcesPlugin.getWorkspace().getRoot().findFilesForLocationURI(resource.getLocationURI())[0];
                }
                return true;
              }
            });
          }
        }
      } catch (final CoreException e1) {
      }
    }
  }

  public String getTypeLabel() {
    return null;
  }

  public String getHyperlinkText() {
    if (file == null) {
      return null;
    }
    return "Open \"" + wcName + ".html\"";
  }

  public String getURLString() {
    return this.wcName;
  }

  @Override
  public String toString() {
    return getClass().getSimpleName() + " for wicket Component " + wcName + " to " + file;
  }
}
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