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

   1 package net.mograsim.plugin.asm.editor;
   2
   3 import org.eclipse.core.resources.IProjectNatureDescriptor;
   4 import org.eclipse.core.resources.IWorkspace;
   5 import org.eclipse.core.resources.ResourcesPlugin;
   6 import org.eclipse.jface.text.IRegion;
   7 import org.eclipse.jface.text.ITextHover;
   8 import org.eclipse.jface.text.ITextViewer;
   9 import org.eclipse.jface.text.Region;
  10
  11 public class AsmHoverProvider implements ITextHover
  12 {
  13
  14         @Override
  15         public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion)
  16         {
  17                 // TODO this is logic for .project file to show nature description on hover.
  18                 // Replace with your language logic!
  19                 String contents = textViewer.getDocument().get();
  20                 int offset = hoverRegion.getOffset();
  21                 int endIndex = contents.indexOf("</nature>", offset);
  22                 if (endIndex == -1)
  23                         return "";
  24                 int startIndex = contents.substring(0, offset).lastIndexOf("<nature>");
  25                 if (startIndex == -1)
  26                         return "";
  27                 String selection = contents.substring(startIndex + "<nature>".length(), endIndex);
  28
  29                 IWorkspace workspace = ResourcesPlugin.getWorkspace();
  30                 IProjectNatureDescriptor[] natureDescriptors = workspace.getNatureDescriptors();
  31                 for (int i = 0; i < natureDescriptors.length; i++)
  32                 {
  33                         if (natureDescriptors[i].getNatureId().equals(selection))
  34                                 return natureDescriptors[i].getLabel();
  35                 }
  36                 return "";
  37         }
  38
  39         @Override
  40         public IRegion getHoverRegion(ITextViewer textViewer, int offset)
  41         {
  42                 return new Region(offset, 0);
  43         }
  44 }