org.eclipse.osbp.xtext.signal.ui/xtend-gen/org/eclipse/osbp/xtext/signal/ui/contentassist/SignalDSLProposalProvider.java

/**
 * Copyright (c) 2011, 2018 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * 
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License 2.0 
 *  which accompanies this distribution, and is available at
 *  https://www.eclipse.org/legal/epl-2.0/
 *
 *  SPDX-License-Identifier: EPL-2.0
 * 
 *  Contributors:
 * 	   Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation
 * 
 * generated by Xtext 2.11.0
 */
package org.eclipse.osbp.xtext.signal.ui.contentassist;

import com.google.inject.Inject;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.file.Paths;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.jface.text.contentassist.ICompletionProposal;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.osbp.xtext.basic.ui.contentassist.BasicDSLProposalProviderHelper;
import org.eclipse.osbp.xtext.signal.SignalExecutionTypeEnum;
import org.eclipse.osbp.xtext.signal.SignalHandler;
import org.eclipse.osbp.xtext.signal.SignalWatcher;
import org.eclipse.osbp.xtext.signal.ui.SignalDSLDocumentationTranslator;
import org.eclipse.osbp.xtext.signal.ui.contentassist.AbstractSignalDSLProposalProvider;
import org.eclipse.osbp.xtext.signal.ui.contentassist.DirectoryNameTextApplier;
import org.eclipse.xtext.Assignment;
import org.eclipse.xtext.Keyword;
import org.eclipse.xtext.RuleCall;
import org.eclipse.xtext.common.ui.contentassist.TerminalsProposalProvider;
import org.eclipse.xtext.ui.editor.contentassist.ConfigurableCompletionProposal;
import org.eclipse.xtext.ui.editor.contentassist.ContentAssistContext;
import org.eclipse.xtext.ui.editor.contentassist.ICompletionProposalAcceptor;
import org.eclipse.xtext.xbase.lib.Exceptions;

@SuppressWarnings("all")
public class SignalDSLProposalProvider extends AbstractSignalDSLProposalProvider {
  @Inject
  private TerminalsProposalProvider provider;
  
  @Inject
  private BasicDSLProposalProviderHelper providerHelper;
  
  @Override
  protected StyledString getKeywordDisplayString(final Keyword keyword) {
    return BasicDSLProposalProviderHelper.getKeywordDisplayString(keyword, 
      SignalDSLDocumentationTranslator.instance());
  }
  
  /**
   * This override will enable 1 length non letter characters as keyword.
   */
  @Override
  protected boolean isKeywordWorthyToPropose(final Keyword keyword) {
    return true;
  }
  
  @Override
  public void complete_QualifiedName(final EObject model, final RuleCall ruleCall, final ContentAssistContext context, final ICompletionProposalAcceptor acceptor) {
    this.providerHelper.complete_PackageName(model, ruleCall, context, acceptor, this);
  }
  
  @Override
  public void completeSignalWatcher_Directory(final EObject model, final Assignment assignment, final ContentAssistContext context, final ICompletionProposalAcceptor acceptor) {
    this.directoryPickerProposal(model, context, acceptor);
  }
  
  public void directoryPickerProposal(final EObject model, final ContentAssistContext context, final ICompletionProposalAcceptor acceptor) {
    ICompletionProposal _createCompletionProposal = this.createCompletionProposal("Select directory...", context);
    ConfigurableCompletionProposal dirName = ((ConfigurableCompletionProposal) _createCompletionProposal);
    if ((dirName != null)) {
      DirectoryNameTextApplier applier = new DirectoryNameTextApplier();
      applier.setContext(context);
      dirName.setTextApplier(applier);
    }
    acceptor.accept(dirName);
  }
  
  /**
   * This method decided which proposals will be valid.
   */
  @Override
  protected boolean isValidProposal(final String proposal, final String prefix, final ContentAssistContext context) {
    boolean result = super.isValidProposal(proposal, prefix, context);
    EObject _currentModel = context.getCurrentModel();
    if ((_currentModel instanceof SignalHandler)) {
      EObject _currentModel_1 = context.getCurrentModel();
      result = this.isValidProposalSignalHandlerType(proposal, prefix, ((SignalHandler) _currentModel_1), result);
    }
    return result;
  }
  
  private boolean isValidProposalSignalHandlerType(final String proposal, final String prefix, final SignalHandler handler, final boolean result) {
    if ((handler != null)) {
      String _name = handler.getName();
      boolean _tripleNotEquals = (_name != null);
      if (_tripleNotEquals) {
        EObject _eContainer = handler.eContainer();
        if ((_eContainer instanceof SignalWatcher)) {
          EObject _eContainer_1 = handler.eContainer();
          SignalWatcher watcher = ((SignalWatcher) _eContainer_1);
          URL url = this.getDirectoryURL(watcher.getDirectory());
          if ((((url != null) && (!url.getProtocol().equals("file"))) && proposal.equals("forFileMask"))) {
            return false;
          }
        }
        if (((handler.getInterchanges().size() < 1) && (proposal.equals(SignalExecutionTypeEnum.NOSEQ.getLiteral()) || proposal.equals(SignalExecutionTypeEnum.SEQ.getLiteral())))) {
          return false;
        }
        if (((handler.getInterchanges().size() < 1) && proposal.equals("forFileMask"))) {
          return false;
        }
      }
    }
    return result;
  }
  
  public URL getDirectoryURL(final String directory) {
    try {
      return new URL(directory);
    } catch (final Throwable _t) {
      if (_t instanceof MalformedURLException) {
        final MalformedURLException e1 = (MalformedURLException)_t;
        if ((e1.getMessage().startsWith("unknown protocol") || e1.getMessage().startsWith("no protocol"))) {
          try {
            return Paths.get(directory).toUri().toURL();
          } catch (final Throwable _t_1) {
            if (_t_1 instanceof MalformedURLException) {
              final MalformedURLException e2 = (MalformedURLException)_t_1;
              return null;
            } else {
              throw Exceptions.sneakyThrow(_t_1);
            }
          }
        }
      } else {
        throw Exceptions.sneakyThrow(_t);
      }
    }
    return null;
  }
  
  @Override
  public void complete_INT(final EObject model, final RuleCall ruleCall, final ContentAssistContext context, final ICompletionProposalAcceptor acceptor) {
    this.provider.complete_INT(model, ruleCall, context, acceptor);
  }
  
  @Override
  public void complete_TRANSLATABLEID(final EObject model, final RuleCall ruleCall, final ContentAssistContext context, final ICompletionProposalAcceptor acceptor) {
    this.provider.complete_ID(model, ruleCall, context, acceptor);
  }
  
  @Override
  public void complete_TRANSLATABLESTRING(final EObject model, final RuleCall ruleCall, final ContentAssistContext context, final ICompletionProposalAcceptor acceptor) {
    this.provider.complete_STRING(model, ruleCall, context, acceptor);
  }
  
  @Override
  public void complete_STRING(final EObject model, final RuleCall ruleCall, final ContentAssistContext context, final ICompletionProposalAcceptor acceptor) {
    this.provider.complete_STRING(model, ruleCall, context, acceptor);
  }
}