plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/asm/editor/AsmContentAssistProcessor.java

   1 package net.mograsim.plugin.asm.editor;
   2
   3 import org.eclipse.core.resources.IWorkspace;
   4 import org.eclipse.core.resources.ResourcesPlugin;
   5 import org.eclipse.jface.text.BadLocationException;
   6 import org.eclipse.jface.text.IDocument;
   7 import org.eclipse.jface.text.ITextViewer;
   8 import org.eclipse.jface.text.contentassist.ICompletionProposal;
   9 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension4;
  10 import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
  11 import org.eclipse.jface.text.contentassist.IContextInformation;
  12 import org.eclipse.jface.text.contentassist.IContextInformationValidator;
  13 import org.eclipse.swt.graphics.Image;
  14 import org.eclipse.swt.graphics.Point;
  15
  16 import net.mograsim.plugin.AsmOps;
  17
  18 public class AsmContentAssistProcessor implements IContentAssistProcessor
  19 {
  20
  21         @Override
  22         public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int offset)
  23         {
  24                 String text = viewer.getDocument().get();
  25                 IWorkspace workspace = ResourcesPlugin.getWorkspace();
  26 //              if (text.length() >= natureTag.length()
  27 //                              && text.substring(offset - natureTag.length(), offset).equals(natureTag)) {
  28 //                      IProjectNatureDescriptor[] natureDescriptors = workspace.getNatureDescriptors();
  29 //                      ICompletionProposal[] proposals = new ICompletionProposal[natureDescriptors.length];
  30 //                      for (int i = 0; i < natureDescriptors.length; i++) {
  31 //                              IProjectNatureDescriptor descriptor = natureDescriptors[i];
  32 //                              proposals[i] = new CompletionProposal(descriptor.getNatureId(), offset, 0,
  33 //                                              descriptor.getNatureId().length());
  34 //                      }
  35 //                      return proposals;
  36 //              }
  37 //              if (text.length() >= projectReferenceTag.length()
  38 //                              && text.substring(offset - projectReferenceTag.length(), offset).equals(projectReferenceTag)) {
  39 //                      IProject[] projects = workspace.getRoot().getProjects();
  40 //                      ICompletionProposal[] proposals = new ICompletionProposal[projects.length];
  41 //                      for (int i = 0; i < projects.length; i++) {
  42 //                              proposals[i] = new CompletionProposal(projects[i].getName(), offset, 0, projects[i].getName().length());
  43 //                      }
  44 //                      return proposals;
  45 //              }
  46 //              return new ICompletionProposal[0];
  47 //              text.
  48                 return AsmOps.ops.stream().map(o -> new AsmOperationProposal(o, "", offset)).toArray(ICompletionProposal[]::new);
  49         }
  50
  51         @Override
  52         public IContextInformation[] computeContextInformation(ITextViewer viewer, int offset)
  53         {
  54                 return null;
  55         }
  56
  57         @Override
  58         public char[] getCompletionProposalAutoActivationCharacters()
  59         {
  60                 return new char[] { '\n', '\r' }; // NON-NLS-1
  61         }
  62
  63         @Override
  64         public char[] getContextInformationAutoActivationCharacters()
  65         {
  66                 return null;
  67         }
  68
  69         @Override
  70         public String getErrorMessage()
  71         {
  72                 return null;
  73         }
  74
  75         @Override
  76         public IContextInformationValidator getContextInformationValidator()
  77         {
  78                 return null;
  79         }
  80
  81         private class AsmOperationProposal implements ICompletionProposal, ICompletionProposalExtension4
  82         {
  83
  84                 private String asmOp;
  85                 private String desc;
  86                 private int offset;
  87
  88                 public AsmOperationProposal(String asmOp, String desc, int offset)
  89                 {
  90                         this.asmOp = asmOp;
  91                         this.desc = desc;
  92                         this.offset = offset;
  93                 }
  94
  95                 @Override
  96                 public boolean isAutoInsertable()
  97                 {
  98                         return true;
  99                 }
 100
 101                 @Override
 102                 public void apply(IDocument document)
 103                 {
 104                         try
 105                         {
 106                                 document.replace(offset, 0, asmOp);
 107                         }
 108                         catch (@SuppressWarnings("unused") BadLocationException e)
 109                         {
 110                                 // ignore
 111                         }
 112                 }
 113
 114                 @Override
 115                 public Point getSelection(IDocument document)
 116                 {
 117                         return new Point(offset + asmOp.length(), 0);
 118                 }
 119
 120                 @Override
 121                 public String getAdditionalProposalInfo()
 122                 {
 123                         return desc;
 124                 }
 125
 126                 @Override
 127                 public String getDisplayString()
 128                 {
 129                         return asmOp;
 130                 }
 131
 132                 @Override
 133                 public Image getImage()
 134                 {
 135                         return null; // TODO image?
 136                 }
 137
 138                 @Override
 139                 public IContextInformation getContextInformation()
 140                 {
 141                         return new IContextInformation()
 142                         {
 143
 144                                 @Override
 145                                 public String getInformationDisplayString()
 146                                 {
 147                                         // TODO Auto-generated method stub
 148                                         return null;
 149                                 }
 150
 151                                 @Override
 152                                 public Image getImage()
 153                                 {
 154                                         // TODO Auto-generated method stub
 155                                         return null;
 156                                 }
 157
 158                                 @Override
 159                                 public String getContextDisplayString()
 160                                 {
 161                                         // TODO Auto-generated method stub
 162                                         return null;
 163                                 }
 164                         };
 165                 }
 166
 167         }
 168
 169 }