private void selectTypes(ModuleDeclaration parsedUnit, ASTNode node) {
    if (node instanceof ConstantReference) {
      selectOnConstant(parsedUnit, (ConstantReference) node);
    } else if (node instanceof RubyColonExpression) {
      selectOnColonExpression(parsedUnit, (RubyColonExpression) node);
    }

    if (selectionElements.isEmpty()) {
      TypeNameMatchRequestor requestor =
          new TypeNameMatchRequestor() {
            @Override
            public void acceptTypeNameMatch(TypeNameMatch match) {
              selectionElements.add(match.getType());
            }
          };
      String unqualifiedName = null;
      if (node instanceof RubyColonExpression) {
        RubyColonExpression expr = (RubyColonExpression) node;
        unqualifiedName = expr.getName();
      } else if (node instanceof ConstantReference) {
        ConstantReference expr = (ConstantReference) node;
        unqualifiedName = expr.getName();
      }
      if (unqualifiedName != null) {
        ScriptModelUtil.searchTypeDeclarations(
            sourceModule.getScriptProject(), unqualifiedName, requestor);
      }
    }
  }
示例#2
0
 /*
  * @see SelectionDispatchAction#selectionChanged(IStructuredSelection)
  */
 public void selectionChanged(IStructuredSelection selection) {
   if (ReorgUtils.containsOnlyProjects(selection.toList())) {
     setEnabled(createWorkbenchAction(selection).isEnabled());
     return;
   }
   try {
     setEnabled(RefactoringAvailabilityTester.isDeleteAvailable(selection.toArray()));
   } catch (CoreException e) {
     // no ui here - this happens on selection changes
     // http://bugs.eclipse.org/bugs/show_bug.cgi?id=19253
     if (ScriptModelUtil.isExceptionToBeLogged(e)) DLTKUIPlugin.log(e);
     setEnabled(false);
   }
 }
  /**
   * Processes a delta recursively. When more than two children are affected the tree is fully
   * refreshed starting at this node.
   *
   * @param delta the delta to process
   * @param runnables the resulting view changes as runnables (type {@link Runnable} )
   * @return true is returned if the conclusion is to refresh a parent of an element. In that case
   *     no siblings need to be processed
   * @throws JavaModelException thrown when the access to an element failed
   */
  private boolean processDelta(final IModelElementDelta delta, final Collection<Runnable> runnables)
      throws ModelException {

    int kind = delta.getKind();
    int flags = delta.getFlags();
    IModelElement element = delta.getElement();
    int elementType = element.getElementType();

    if (elementType != IModelElement.SCRIPT_MODEL && elementType != IModelElement.SCRIPT_PROJECT) {
      IScriptProject proj = element.getScriptProject();
      if (proj == null || !proj.getProject().isOpen()) {
        // TODO: Not needed if parent already did the 'open' check!
        return false;
      }
    }

    if (elementType == IModelElement.SCRIPT_FOLDER) {
      if ((flags & (IModelElementDelta.F_CONTENT | IModelElementDelta.F_CHILDREN))
          == IModelElementDelta.F_CONTENT) {
        if (!fIsFlatLayout) {
          Object parent = getHierarchicalPackageParent((IScriptFolder) element);
          if (!(parent instanceof IProjectFragment)) {
            postRefresh(internalGetParent(parent), GRANT_PARENT, element, runnables);
            return true;
          }
        }
        // content change, without children info (for example resource
        // added/removed to class folder package)
        postRefresh(internalGetParent(element), PARENT, element, runnables);
        return true;
      }

      if (!fIsFlatLayout) {
        if (kind == IModelElementDelta.REMOVED) {
          final Object parent = getHierarchicalPackageParent((IScriptFolder) element);
          if (parent instanceof IProjectFragment) {
            postRemove(element, runnables);
            return false;
          } else {
            postRefresh(internalGetParent(parent), GRANT_PARENT, element, runnables);
            return true;
          }
        } else if (kind == IModelElementDelta.ADDED) {
          final Object parent = getHierarchicalPackageParent((IScriptFolder) element);
          if (parent instanceof IProjectFragment) {
            if (fFoldPackages) {
              postRefresh(parent, PARENT, element, runnables);
              return true;
            } else {
              postAdd(parent, element, runnables);
              return false;
            }
          } else {
            postRefresh(internalGetParent(parent), GRANT_PARENT, element, runnables);
            return true;
          }
        }
        handleAffectedChildren(delta, element, runnables);
        return false;
      }
    }

    if (elementType == IModelElement.SOURCE_MODULE) {
      ISourceModule cu = (ISourceModule) element;
      if (!ScriptModelUtil.isPrimary(cu)) {
        return false;
      }

      if (!getProvideMembers() && cu.isWorkingCopy() && kind == IModelElementDelta.CHANGED) {
        return false;
      }

      if (kind == IModelElementDelta.CHANGED && !isStructuralCUChange(flags)) {
        return false; // test moved ahead
      }

      if (!isOnClassPath(cu)) { // TODO: isOnClassPath expensive! Should
        // be put after all cheap tests
        return false;
      }
    }

    if (elementType == IModelElement.SCRIPT_PROJECT) {
      // handle open and closing of a project
      if ((flags & (IModelElementDelta.F_CLOSED | IModelElementDelta.F_OPENED)) != 0) {
        postRefresh(element, ORIGINAL, element, runnables);
        return false;
      }
      // if the class path has changed we refresh the entire project
      if ((flags & IModelElementDelta.F_BUILDPATH_CHANGED) != 0) {
        postRefresh(element, ORIGINAL, element, runnables);
        return false;
      }
      // if added it could be that the corresponding IProject is already
      // shown. Remove it first.
      // bug 184296
      if (kind == IModelElementDelta.ADDED) {
        postRemove(element.getResource(), runnables);
        postAdd(element.getParent(), element, runnables);
        return false;
      }
    }

    if (kind == IModelElementDelta.REMOVED) {
      Object parent = internalGetParent(element);
      if (element instanceof IScriptFolder) {
        // refresh package fragment root to allow filtering empty
        // (parent) packages: bug 72923
        if (fViewer.testFindItem(parent) != null) {
          postRefresh(parent, PARENT, element, runnables);
        }
        return true;

      } else if (element instanceof IProjectFragment
          && ((IProjectFragment) element).getKind() != IProjectFragment.K_SOURCE) {
        // libs and class folders can show up twice (in library
        // container and as resource at original location)
        IResource resource = element.getResource();
        if (resource != null) postRemove(resource, runnables);
      }

      postRemove(element, runnables);
      if (parent instanceof IScriptFolder) {
        postUpdateIcon((IScriptFolder) parent, runnables);
      }
      // we are filtering out empty subpackages, so we
      // a package becomes empty we remove it from the viewer.
      if (isScriptFolderEmpty(element.getParent())) {
        if (fViewer.testFindItem(parent) != null) {
          postRefresh(internalGetParent(parent), GRANT_PARENT, element, runnables);
        }
        return true;
      }
      return false;
    }

    if (kind == IModelElementDelta.ADDED) {
      Object parent = internalGetParent(element);
      // we are filtering out empty subpackages, so we
      // have to handle additions to them specially.
      if (parent instanceof IScriptFolder) {
        Object grandparent = internalGetParent(parent);
        // 1GE8SI6: ITPJUI:WIN98 - Rename is not shown in Packages View
        // avoid posting a refresh to an invisible parent
        if (parent.equals(fInput)) {
          postRefresh(parent, PARENT, element, runnables);
        } else {
          // refresh from grandparent if parent isn't visible yet
          if (fViewer.testFindItem(parent) == null) {
            postRefresh(grandparent, GRANT_PARENT, element, runnables);
          } else {
            postRefresh(parent, PARENT, element, runnables);
          }
        }
        return true;
      } else {
        postAdd(parent, element, runnables);
      }
    }

    if (elementType == IModelElement.SOURCE_MODULE || elementType == IModelElement.BINARY_MODULE) {
      if (kind == IModelElementDelta.CHANGED) {
        // isStructuralCUChange already performed above
        postRefresh(element, ORIGINAL, element, runnables);
      }
      return false;
    }

    if (elementType == IModelElement.PROJECT_FRAGMENT) {
      // the contents of an external JAR or class folder has changed
      if ((flags & IModelElementDelta.F_ARCHIVE_CONTENT_CHANGED) != 0) {
        postRefresh(element, ORIGINAL, element, runnables);
        return false;
      }
      if ((flags & (IModelElementDelta.F_CONTENT | IModelElementDelta.F_CHILDREN))
          == IModelElementDelta.F_CONTENT) {
        // content change, without children info (for example resource
        // added/removed to class folder package)
        postRefresh(internalGetParent(element), PARENT, element, runnables);
        return true;
      }
      // the source attachment of a JAR has changed
      // if ((flags & ( | IModelElementDelta.F_SOURCEDETACHED)) != 0) {
      // postUpdateIcon(element, runnables);
      // }

      if (isBuildPathChange(delta)) {
        // throw the towel and do a full refresh of the affected java
        // project.
        postRefresh(element.getScriptProject(), PROJECT, element, runnables);
        return true;
      }
    }

    handleAffectedChildren(delta, element, runnables);
    return false;
  }