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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Eclipse Public License, Version 1.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.eclipse.org/org/documents/epl-v10.php
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.ide.eclipse.adt.internal.editors.binaryxml;
     18 
     19 import com.android.SdkConstants;
     20 import com.android.ide.eclipse.adt.AdtPlugin;
     21 
     22 import org.eclipse.core.resources.IStorage;
     23 import org.eclipse.core.runtime.IPath;
     24 import org.eclipse.jdt.core.IPackageFragmentRoot;
     25 import org.eclipse.jdt.internal.core.JarEntryFile;
     26 import org.eclipse.jdt.internal.ui.javaeditor.JarEntryEditorInput;
     27 import org.eclipse.ui.IEditorInput;
     28 import org.eclipse.wst.xml.ui.internal.tabletree.XMLMultiPageEditorPart;
     29 
     30 import java.io.File;
     31 
     32 /**
     33  * The XML editor is an editor that open Android xml files from the android.jar file
     34  * <p>
     35  * The editor checks if the file is contained in jar and is so,
     36  * convert editor input to XmlStorageEditorInput that handles
     37  * corresponding file from Android SDK.
     38  *
     39  */
     40 public class BinaryXMLMultiPageEditorPart extends XMLMultiPageEditorPart {
     41 
     42     /*
     43      * (non-Javadoc)
     44      *
     45      * @see org.eclipse.ui.part.EditorPart#setInput(org.eclipse.ui.IEditorInput)
     46      */
     47     @Override
     48     protected void setInput(IEditorInput input) {
     49         if (input instanceof JarEntryEditorInput) {
     50             JarEntryEditorInput jarInput = (JarEntryEditorInput) input;
     51             IStorage storage = jarInput.getStorage();
     52             if (storage instanceof JarEntryFile) {
     53                 JarEntryFile jarEntryFile = (JarEntryFile) storage;
     54                 IPackageFragmentRoot fragmentRoot = jarEntryFile.getPackageFragmentRoot();
     55                 if (fragmentRoot == null) {
     56                     super.setInput(input);
     57                     return;
     58                 }
     59                 IPath path = fragmentRoot.getPath();
     60                 if (path == null) {
     61                     super.setInput(input);
     62                     return;
     63                 }
     64                 path = path.removeLastSegments(1);
     65                 IPath filePath = path.append(SdkConstants.FD_DATA).append(
     66                         jarEntryFile.getFullPath().toPortableString());
     67                 File file = new File(filePath.toOSString());
     68                 if (!(file.isFile())) {
     69                     super.setInput(input);
     70                     return;
     71                 }
     72                 try {
     73                     XmlStorageEditorInput newInput = new XmlStorageEditorInput(
     74                             new FileStorage(file));
     75                     super.setInput(newInput);
     76                     return;
     77                 } catch (Exception e) {
     78                     AdtPlugin.log(e, e.getMessage(), null);
     79                 }
     80             }
     81         }
     82         super.setInput(input);
     83     }
     84 
     85 }
     86