plugins/org.eclipse.wst.sse.sieditor.search/src/org/eclipse/wst/sse/sieditor/search/ui/actions/OpenInEditorAction.java

/*******************************************************************************
 * Copyright (c) 2012 SAP AG.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Georgi Konstantinov - initial API and implementation.
 *******************************************************************************/
package org.eclipse.wst.sse.sieditor.search.ui.actions;

import java.io.File;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.FileEditorInput;
import org.eclipse.wst.sse.sieditor.model.api.IModelObject;
import org.eclipse.wst.sse.sieditor.model.wsdl.api.IDescription;
import org.eclipse.wst.sse.sieditor.search.i18n.Messages;
import org.eclipse.wst.sse.sieditor.search.ui.tree.FileNode;
import org.eclipse.wst.sse.sieditor.ui.DataTypesEditor;
import org.eclipse.wst.sse.sieditor.ui.ServiceInterfaceEditor;
import org.eclipse.wst.sse.sieditor.ui.v2.nodes.ITreeNode;

public class OpenInEditorAction extends AbstractActiveOnSingleSelectionAction {

    public OpenInEditorAction(ISelection selection) {
        super(selection);
    }

    @Override
    public void run() {
        final Object firstElementFromSelection = getStructuredSelectionFirstElement();
        if (!(firstElementFromSelection instanceof ITreeNode)) {
            return;
        }

        ITreeNode selectedTreeNode = (ITreeNode) firstElementFromSelection;

        IFile theFile = getFileFromTreeNode(selectedTreeNode);

        IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
        FileEditorInput eInput = new FileEditorInput(theFile);
        String editorID = getEditorId(selectedTreeNode);
        IWorkbenchPage workbenchActivePage = window.getActivePage();

        try {
            workbenchActivePage.openEditor(eInput, editorID);
        } catch (PartInitException e) {
            throw new IllegalStateException("Cannot create input for editor", e); //$NON-NLS-1$
        }
    }

    protected String getEditorId(ITreeNode selectedTreeNode) {
        boolean isWsdlFile = false;
        if (selectedTreeNode instanceof FileNode) {
            FileNode fileNode = (FileNode) selectedTreeNode;
            isWsdlFile = !fileNode.isXsdFile();
        } else {
            IModelObject root = selectedTreeNode.getModelObject().getRoot();
            isWsdlFile = root instanceof IDescription;
        }

        return isWsdlFile ? ServiceInterfaceEditor.EDITOR_ID : DataTypesEditor.EDITOR_ID;
    }

    protected IFile getFileFromTreeNode(ITreeNode selectedTreeNode) {
        if (selectedTreeNode instanceof FileNode) {
            FileNode fileNode = (FileNode) selectedTreeNode;
            return fileNode.getFile();
        }

        IModelObject modelObject = selectedTreeNode.getModelObject();
        String fileString = modelObject.getComponent().eResource().getURI().toFileString();
        File file = new File(fileString);

        IWorkspaceRoot workspaceRoot = ResourcesPlugin.getWorkspace().getRoot();

        IFile[] resources = workspaceRoot.findFilesForLocationURI(file.getAbsoluteFile().toURI());

        if (null == resources || resources.length == 0) {
            throw new IllegalStateException("Cannot find file for the selected object"); //$NON-NLS-1$
        }

        return resources[0];
    }

    @Override
    public String getText() {
        return Messages.OpenInEditorAction_Label;
    }
}