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

List of usage examples for org.eclipse.jface.viewers IStructuredSelection size

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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.ui.internal.actions.AddTaskAction.java

License:Open Source License

private IResource getElement(IStructuredSelection selection) {
    if (selection.size() != 1) {
        return null;
    }//from   w w  w  . j  a v a2s  .c om

    Object element = selection.getFirstElement();
    if (!(element instanceof IAdaptable)) {
        return null;
    }
    return (IResource) ((IAdaptable) element).getAdapter(IResource.class);
}

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

License:Open Source License

/**
 * Converts the given structured selection into an array of Java elements. An empty array is
 * returned if one of the elements stored in the structured selection is not of type
 * <code>DartElement</code>//from w  w  w  .j  a  v  a2s .com
 */
public static DartElement[] getElements(IStructuredSelection selection) {
    if (!selection.isEmpty()) {
        DartElement[] result = new DartElement[selection.size()];
        int i = 0;
        for (Iterator<?> iter = selection.iterator(); iter.hasNext(); i++) {
            Object element = iter.next();
            if (!(element instanceof DartElement)) {
                return EMPTY_RESULT;
            }
            result[i] = (DartElement) element;
        }
        return result;
    }
    return EMPTY_RESULT;
}

From source file:com.google.dart.tools.ui.internal.dialogs.TableTextCellEditor.java

License:Open Source License

@Override
protected Control createControl(Composite parent) {
    // workaround for bug 58777: don't accept focus listeners on the text
    // control/*from   ww w  . j  a va2  s .c  o m*/
    final Control[] textControl = new Control[1];
    Composite result = new Composite(parent, SWT.NONE) {
        @Override
        public void addListener(int eventType, final Listener listener) {
            if (eventType != SWT.FocusIn && eventType != SWT.FocusOut) {
                textControl[0].addListener(eventType, listener);
            }
        }
    };
    result.setFont(parent.getFont());
    result.setBackground(parent.getBackground());
    result.setLayout(new FillLayout());

    text = new Text(result, getStyle());
    textControl[0] = text;
    text.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            handleDefaultSelection(e);
        }
    });
    text.addKeyListener(new KeyAdapter() {
        @Override
        public void keyPressed(KeyEvent e) {
            // support switching rows while editing:
            if (e.stateMask == SWT.MOD1 || e.stateMask == SWT.MOD2) {
                if (e.keyCode == SWT.ARROW_UP || e.keyCode == SWT.ARROW_DOWN) {
                    // allow starting multi-selection even if in edit mode
                    deactivate();
                    e.doit = false;
                    return;
                }
            }

            if (e.stateMask != SWT.NONE) {
                return;
            }

            switch (e.keyCode) {
            case SWT.ARROW_DOWN:
                e.doit = false;
                int nextRow = fTableViewer.getTable().getSelectionIndex() + 1;
                if (nextRow >= fTableViewer.getTable().getItemCount()) {
                    break;
                }
                editRow(nextRow);
                break;

            case SWT.ARROW_UP:
                e.doit = false;
                int prevRow = fTableViewer.getTable().getSelectionIndex() - 1;
                if (prevRow < 0) {
                    break;
                }
                editRow(prevRow);
                break;

            case SWT.F2:
                e.doit = false;
                deactivate();
                break;
            }
        }

        private void editRow(int row) {
            fTableViewer.getTable().setSelection(row);
            IStructuredSelection newSelection = (IStructuredSelection) fTableViewer.getSelection();
            if (newSelection.size() == 1) {
                fTableViewer.editElement(newSelection.getFirstElement(), fColumn);
            }
        }
    });
    text.addKeyListener(new KeyAdapter() {
        // hook key pressed - see PR 14201
        @Override
        public void keyPressed(KeyEvent e) {
            keyReleaseOccured(e);

            // as a result of processing the above call, clients may have
            // disposed this cell editor
            if ((getControl() == null) || getControl().isDisposed()) {
                return;
            }
            checkSelection(); // see explaination below
            checkDeleteable();
            checkSelectable();
        }
    });
    text.addTraverseListener(new TraverseListener() {
        @Override
        public void keyTraversed(TraverseEvent e) {
            if (e.detail == SWT.TRAVERSE_ESCAPE || e.detail == SWT.TRAVERSE_RETURN) {
                e.doit = false;
            }
        }
    });
    // We really want a selection listener but it is not supported so we
    // use a key listener and a mouse listener to know when selection changes
    // may have occured
    text.addMouseListener(new MouseAdapter() {
        @Override
        public void mouseUp(MouseEvent e) {
            checkSelection();
            checkDeleteable();
            checkSelectable();
        }
    });
    text.addFocusListener(new FocusAdapter() {
        @Override
        public void focusLost(FocusEvent e) {
            TableTextCellEditor.this.focusLost();
        }
    });
    text.setFont(parent.getFont());
    text.setBackground(parent.getBackground());
    text.setText("");//$NON-NLS-1$
    text.addModifyListener(getModifyListener());

    return result;
}

From source file:com.google.dart.tools.ui.internal.filesview.FilesView.java

License:Open Source License

protected void fillContextMenu(IMenuManager manager) {
    IStructuredSelection selection = (IStructuredSelection) treeViewer.getSelection();

    // New File/ New Folder 

    if (allElementsAreResources(selection)) {
        manager.add(createFileAction);/*from   w w  w  .  j  a  va  2s. c  om*/

    }
    if (selection.size() == 1 && selection.getFirstElement() instanceof IContainer) {
        manager.add(createFolderAction);
    }

    manager.add(createApplicationAction);

    // OPEN GROUP

    if (manager.getItems().length > 0) {
        manager.add(new Separator());
    }

    manager.add(OpenFolderHandler.createCommandAction(getSite().getWorkbenchWindow()));

    // Close folder action (aka Remove from Editor)
    if (!selection.isEmpty() && allElementsAreResources(selection)) {
        // Remove, iff non-empty selection, all elements are IResources
        if (allElementsAreProjects(selection)) {
            manager.add(hideContainerAction);
        }
    }

    // EDIT GROUP

    if (!selection.isEmpty() && allElementsAreResources(selection)) {

        manager.add(new Separator());

        manager.add(copyAction);

        // Copy File Path iff single element and is an IResource

        if (selection.size() == 1) {
            manager.add(copyFilePathAction);
        }

        manager.add(pasteAction);

        if (selection.size() == 1 && selection.getFirstElement() instanceof IFile) {
            manager.add(openAsTextAction);
        }

        manager.add(new Separator());
        manager.add(refreshAction);
    }

    // REFACTOR GROUP

    // Refactor iff all elements are IResources

    if (!selection.isEmpty() && allElementsAreResources(selection)) {
        manager.add(new Separator());
        if (selection.size() == 1) {
            manager.add(renameAction);
            manager.add(moveAction);
        }
        manager.add(cleanUpAction);
        manager.add(new Separator());
        ignoreResourceAction.updateLabel();
        manager.add(ignoreResourceAction);
        if (enableBuilderAction.shouldBeEnabled()) {
            enableBuilderAction.updateLabel();
            manager.add(enableBuilderAction);
        }
        manager.add(new Separator());
        manager.add(deleteAction);
        manager.add(new Separator());
    }
}

From source file:com.google.dart.tools.ui.internal.libraryview.LibraryExplorerActionGroup.java

License:Open Source License

@Override
public void fillContextMenu(IMenuManager menu) {
    super.fillContextMenu(menu);

    ISelection selection = getContext().getSelection();

    if (selection.isEmpty() || !(selection instanceof IStructuredSelection)) {
        // Nothing selected - go with New File, New Application, and Open File
        menu.add(newFileWizardAction);//from w  w  w .ja  v  a 2  s .com
        menu.add(newApplicationWizardAction);
        menu.add(new Separator());
        menu.add(openFileAction);
        return;
    }

    IStructuredSelection ss = (IStructuredSelection) selection;
    if (ss.size() != 1) {
        for (Object o : ss.toList()) {
            if (!(o instanceof DartLibrary)) {
                return;
            }
        }
        menu.add(closeLibraryAction);
        return;
    }

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

    IAdaptable element = (IAdaptable) o;

    if (element instanceof DartLibrary) {
        // Library container
        menu.add(newFileWizardAction);
        menu.add(new Separator());
        menu.add(closeLibraryAction);
        return;
    }

    if (element instanceof CompilationUnit) {
        // .dart file
        menu.add(navigateActionGroup.getEditAction());
        return;
    }

    if (element instanceof HTMLFile) {
        menu.add(navigateActionGroup.getEditAction());
        menu.add(new Separator());
        menu.add(runInBrowserAction);
        return;
    }

    if (element instanceof DartResource) {
        menu.add(navigateActionGroup.getEditAction());
        return;
    }
}

From source file:com.google.dart.tools.ui.internal.libraryview.LibraryExplorerPart.java

License:Open Source License

@Override
public boolean show(ShowInContext context) {
    ISelection selection = context.getSelection();
    if (selection instanceof IStructuredSelection) {
        IStructuredSelection structuredSelection = ((IStructuredSelection) selection);
        if (structuredSelection.size() == 1) {
            int res = tryToReveal(structuredSelection.getFirstElement());
            if (res == IStatus.OK) {
                return true;
            }/* w ww.j  av  a  2 s.  c om*/
            if (res == IStatus.CANCEL) {
                return false;
            }
        } else if (structuredSelection.size() > 1) {
            selectReveal(structuredSelection);
            return true;
        }
    }

    Object input = context.getInput();
    if (input instanceof IEditorInput) {
        Object elementOfInput = getInputFromEditor((IEditorInput) input);
        return elementOfInput != null && (tryToReveal(elementOfInput) == IStatus.OK);
    }

    return false;
}

From source file:com.google.dart.tools.ui.internal.libraryview.LibraryExplorerPart.java

License:Open Source License

private boolean inputIsSelected(IEditorInput input) {
    IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
    if (selection.size() != 1) {
        return false;
    }/*  w w  w. jav  a  2  s.c o m*/

    IEditorInput selectionAsInput;
    try {
        selectionAsInput = EditorUtility.getEditorInput(selection.getFirstElement());
    } catch (DartModelException dme) {
        dme.printStackTrace();
        return false;
    }
    return input.equals(selectionAsInput);
}

From source file:com.google.dart.tools.ui.internal.problemsview.ProblemsView.java

License:Open Source License

private void addActionsForSelection(IMenuManager menuManager) {
    IStructuredSelection selection = (IStructuredSelection) getViewer().getSelection();

    if (selection.size() == 1) {
        Object element = selection.getFirstElement();

        if (!(element instanceof IMarker)) {
            return;
        }//from   w ww .  java  2  s  .  c  om

        final IMarker marker = (IMarker) element;

        IMarkerResolution[] resolutions = IDE.getMarkerHelpRegistry().getResolutions(marker);

        for (final IMarkerResolution resolution : resolutions) {
            Action action = new Action(escapeSpecialChars(resolution.getLabel())) {
                @Override
                public void run() {
                    resolution.run(marker);
                }
            };

            if (resolution instanceof IMarkerResolution2) {
                IMarkerResolution2 resolution2 = (IMarkerResolution2) resolution;
                Image image = resolution2.getImage();
                if (image != null) {
                    action.setImageDescriptor(ImageDescriptor.createFromImage(image));
                }
            }

            menuManager.add(action);
        }
    }
}

From source file:com.google.dart.tools.ui.internal.problemsview.ProblemsView.java

License:Open Source License

private void updateStatusLine(IStructuredSelection selection) {
    String message;/*from w  w  w  .  jav a2 s  . c o m*/

    if (selection == null || selection.size() == 0) {
        message = "";
    } else if (selection.size() == 1) {
        Object sel = selection.getFirstElement();

        if (sel instanceof IMarker) {
            IMarker marker = (IMarker) sel;

            message = marker.getAttribute(IMarker.MESSAGE, "");
        } else {
            message = "";
        }
    } else {
        List<IMarker> selMarkers = new ArrayList<IMarker>();

        for (Object obj : selection.toList()) {
            if (obj instanceof IMarker) {
                selMarkers.add((IMarker) obj);
            }
        }

        message = getStatusSummary(selMarkers.toArray(new IMarker[selMarkers.size()]));
    }

    getViewSite().getActionBars().getStatusLineManager().setMessage(message);
}

From source file:com.google.dart.tools.ui.internal.refactoring.actions.RenameDartElementAction.java

License:Open Source License

private static DartElement getDartElement(IStructuredSelection selection) {
    if (selection.size() != 1) {
        return null;
    }/*ww w. jav a 2 s  .co m*/
    Object first = selection.getFirstElement();
    if (!(first instanceof DartElement)) {
        return null;
    }
    return (DartElement) first;
}