Example usage for org.eclipse.jface.viewers IStructuredSelection size

Introduction

In this page you can find the example usage for org.eclipse.jface.viewers IStructuredSelection size.

Prototype

public int size();

Source Link

Document

Returns the number of elements selected in this selection.

Usage

From source file:com.google.dart.tools.internal.search.ui.SearchMatchPage.java

License:Open Source License

/**
 * Opens selected {@link ElementItem} in the editor.
 *//*from w w  w .j av a2s.co m*/
private void openSelectedElement(ISelection selection) {
    // need IStructuredSelection
    if (!(selection instanceof IStructuredSelection)) {
        return;
    }
    IStructuredSelection structuredSelection = (IStructuredSelection) selection;
    // only single element
    if (structuredSelection.size() != 1) {
        return;
    }
    Object firstElement = structuredSelection.getFirstElement();
    // line item
    if (firstElement instanceof LineItem) {
        LineItem lineItem = (LineItem) firstElement;
        Position position = lineItem.positions.get(0).position;
        openPositionInElement(lineItem.item.element, position);
    }
    // element item
    if (firstElement instanceof ElementItem) {
        ElementItem item = (ElementItem) firstElement;
        // use ResultCursor to find first occurrence in the requested subtree
        itemCursor = new ItemCursor(item);
        boolean found = itemCursor.next();
        if (!found) {
            return;
        }
        Element element = itemCursor.item.element;
        Position position = itemCursor.getPosition();
        // open position
        openPositionInElement(element, position);
    }
}

From source file:com.google.dart.tools.internal.search.ui.SearchResultPage_NEW.java

License:Open Source License

/**
 * Opens selected {@link ElementItem} in the editor.
 *//* w w w.  j a  v  a2 s . c  o m*/
private void openSelectedElement(ISelection selection) {
    // need IStructuredSelection
    if (!(selection instanceof IStructuredSelection)) {
        return;
    }
    IStructuredSelection structuredSelection = (IStructuredSelection) selection;
    // only single element
    if (structuredSelection.size() != 1) {
        return;
    }
    Object firstElement = structuredSelection.getFirstElement();
    // line item
    if (firstElement instanceof LineItem) {
        LineItem lineItem = (LineItem) firstElement;
        Position position = lineItem.positions.get(0).position;
        openPosition(lineItem.filePath, position);
    }
    // element item
    if (firstElement instanceof ElementItem) {
        ElementItem item = (ElementItem) firstElement;
        // use ResultCursor to find first occurrence in the requested subtree
        itemCursor = new ItemCursor(item);
        boolean found = itemCursor.next();
        if (!found) {
            return;
        }
        String filePath = itemCursor.getLine().filePath;
        Position position = itemCursor.getPosition();
        // open position
        openPosition(filePath, position);
    }
}

From source file:com.google.dart.tools.search.internal.ui.SearchMatchPage.java

License:Open Source License

/**
 * Opens selected {@link ResultItem} in the editor.
 *//*ww  w .j  a  v a2s.c  om*/
private void openSelectedElement(ISelection selection) {
    // need IStructuredSelection
    if (!(selection instanceof IStructuredSelection)) {
        return;
    }
    IStructuredSelection structuredSelection = (IStructuredSelection) selection;
    // only single element
    if (structuredSelection.size() != 1) {
        return;
    }
    Object firstElement = structuredSelection.getFirstElement();
    // prepare ResultItem
    if (!(firstElement instanceof ResultItem)) {
        return;
    }
    ResultItem item = (ResultItem) firstElement;
    // use ResultCursor to find first occurrence in the requested subtree
    itemCursor = new ResultCursor(item);
    boolean found = itemCursor.next();
    if (!found) {
        return;
    }
    Element element = itemCursor.item.element;
    Position position = itemCursor.getPosition();
    // show Element and Position
    try {
        IEditorPart editor = DartUI.openInEditor(context, element, true);
        revealInEditor(editor, position);
    } catch (Throwable e) {
        ExceptionHandler.handle(e, "Search", "Exception during open.");
    }
}

From source file:com.google.dart.tools.search.ui.text.AbstractTextSearchViewPage.java

License:Open Source License

private Object getFirstSelectedElement() {
    IStructuredSelection selection = (IStructuredSelection) fViewer.getSelection();
    if (selection.size() > 0) {
        return selection.getFirstElement();
    }//  w w w . j  av  a  2s . c  om
    return null;
}

From source file:com.google.dart.tools.ui.actions.AbstractDartSelectionAction.java

License:Open Source License

/**
 * @return the {@link IFile} corresponding to the given {@link IStructuredSelection}. May be
 *         {@code null}./*from  w  w  w  .  ja  v a2  s .c  o m*/
 */
protected static IFile getSelectionContextFile(IStructuredSelection selection) {
    if (selection.size() == 1) {
        Object object = selection.getFirstElement();
        if (object instanceof LightNodeElement) {
            return ((LightNodeElement) object).getContextFile();
        }
    }
    return null;
}

From source file:com.google.dart.tools.ui.actions.AbstractDartSelectionAction.java

License:Open Source License

/**
 * @return the only {@link Element} in the given {@link IStructuredSelection}. May be {@code null}
 *         ./*from www . jav  a  2  s  .  c o  m*/
 */
protected static Element getSelectionElement(IStructuredSelection selection) {
    if (selection.size() == 1) {
        Object object = selection.getFirstElement();
        if (object instanceof Element) {
            return (Element) object;
        }
        if (object instanceof LightNodeElement) {
            return ((LightNodeElement) object).getElement();
        }
    }
    return null;
}

From source file:com.google.dart.tools.ui.actions.CopyFilePathAction.java

License:Open Source License

/**
 * On each selection change event, call {@link #setEnabled(boolean)} iff a single element is
 * selected that is a {@link java.io.File}.
 *//*from   w ww.  j  ava 2s .  co  m*/
@Override
public void selectionChanged(SelectionChangedEvent event) {
    // if the selection is a structured selection (aka, from the Files view)
    if (event.getSelection() instanceof IStructuredSelection) {
        IStructuredSelection selection = (IStructuredSelection) event.getSelection();
        // if there is one element selected
        if (selection.size() == 1) {
            Object firstElt = selection.getFirstElement();
            // if that element is a java.io.File element
            if (firstElt instanceof IResource) {
                setEnabled(true);
                return;
            }
        }
    }
    setEnabled(false);
}

From source file:com.google.dart.tools.ui.actions.FindAction.java

License:Open Source License

DartElement getDartElement(IStructuredSelection selection, boolean silent) {
    if (selection.size() == 1) {
        Object firstElement = selection.getFirstElement();
        DartElement elem = null;//w  ww .  j  a  va  2s.  c o  m
        if (firstElement instanceof DartElement) {
            elem = (DartElement) firstElement;
        } else if (firstElement instanceof IAdaptable) {
            elem = (DartElement) ((IAdaptable) firstElement).getAdapter(DartElement.class);
        }
        if (elem != null) {
            return getTypeIfPossible(elem, silent);
        }

    }
    return null;
}

From source file:com.google.dart.tools.ui.actions.OpenEditorActionGroup.java

License:Open Source License

private void addOpenWithMenu(IMenuManager menu) {
    ISelection selection = getContext().getSelection();
    if (selection.isEmpty() || !(selection instanceof IStructuredSelection)) {
        return;/*from w  ww . ja  v a2 s . co m*/
    }
    IStructuredSelection ss = (IStructuredSelection) selection;
    if (ss.size() != 1) {
        return;
    }

    Object o = ss.getFirstElement();
    if (!(o instanceof IAdaptable)) {
        return;
    }

    IAdaptable element = (IAdaptable) o;
    Object resource = element.getAdapter(IResource.class);
    if (!(resource instanceof IFile)) {
        return;
    }

    // Create a menu.
    IMenuManager submenu = new MenuManager(ActionMessages.OpenWithMenu_label);
    submenu.add(new OpenWithMenu(fSite.getPage(), (IFile) resource));

    // Add the submenu.
    menu.appendToGroup(IContextMenuConstants.GROUP_OPEN, submenu);
}

From source file:com.google.dart.tools.ui.actions.OpenNewFolderWizardAction.java

License:Open Source License

private void updateEnablement(ISelection selection) {
    if (selection instanceof IStructuredSelection) {
        IStructuredSelection structuredSelection = (IStructuredSelection) selection;
        if (structuredSelection.size() == 1) {
            if (structuredSelection.getFirstElement() instanceof IResource) {
                IResource element = (IResource) structuredSelection.getFirstElement();
                if (element.getType() == IResource.FOLDER || element.getType() == IResource.PROJECT) {
                    setEnabled(true);/*w w  w .j a va 2s  .c o m*/
                    return;
                }
            }
        }
    }
    setEnabled(false);
}