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

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

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Introduction

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

Prototype

public Object getFirstElement();

Source Link

Document

Returns the first element in this selection, or null if the selection is empty.

Usage

From source file:com.aptana.deploy.wizard.DeployWizardPage.java

License:Open Source License

protected void updateMessage() {
    setMessage(com.aptana.deploy.wizard.WorkbenchMessages.DeployWizardPage_SelectYourDesiredDeploymentOption);
    TreeViewer viewer = getTreeViewer();
    if (viewer != null) {
        ISelection selection = viewer.getSelection();
        IStructuredSelection ss = (IStructuredSelection) selection;
        Object sel = ss.getFirstElement();
        if (sel instanceof WorkbenchWizardElement) {
            updateSelectedNode((WorkbenchWizardElement) sel);
        } else {//from  w w w .  j a  va 2 s.  c om
            setSelectedNode(null);
        }
    } else {
        descriptionLabel.setText(null);
    }
}

From source file:com.aptana.deploy.wizard.DeployWizardPage.java

License:Open Source License

protected void listSelectionChanged(ISelection selection) {
    setErrorMessage(null);/*from   www. j a v  a2  s . co m*/
    IStructuredSelection ss = (IStructuredSelection) selection;
    Object sel = ss.getFirstElement();
    if (sel instanceof WorkbenchWizardElement) {
        WorkbenchWizardElement currentWizardSelection = (WorkbenchWizardElement) sel;
        updateSelectedNode(currentWizardSelection);
    } else {
        updateSelectedNode(null);
    }
}

From source file:com.aptana.editor.common.outline.CommonOutlinePage.java

License:Open Source License

@Override
public void createControl(Composite parent) {
    fMainControl = new Composite(parent, SWT.NONE);
    fMainControl.setLayout(GridLayoutFactory.fillDefaults().spacing(0, 2).create());
    fMainControl.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create());

    fSearchBox = new Text(fMainControl, SWT.SINGLE | SWT.BORDER | SWT.SEARCH);
    fSearchBox.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).indent(0, 3).create());
    fSearchBox.setText(INITIAL_FILTER_TEXT);
    fSearchBox.setForeground(fSearchBox.getDisplay().getSystemColor(SWT.COLOR_TITLE_INACTIVE_FOREGROUND));
    fSearchBox.addModifyListener(fSearchModifyListener);
    fSearchBox.addFocusListener(new FocusListener() {

        public void focusLost(FocusEvent e) {
            if (fSearchBox.getText().length() == 0) {
                fSearchBox.removeModifyListener(fSearchModifyListener);
                fSearchBox.setText(INITIAL_FILTER_TEXT);
                fSearchBox.addModifyListener(fSearchModifyListener);
            }/*from w  w  w  . j av a 2s  .c  om*/
            fSearchBox
                    .setForeground(fSearchBox.getDisplay().getSystemColor(SWT.COLOR_TITLE_INACTIVE_FOREGROUND));
        }

        public void focusGained(FocusEvent e) {
            if (fSearchBox.getText().equals(INITIAL_FILTER_TEXT)) {
                fSearchBox.removeModifyListener(fSearchModifyListener);
                fSearchBox.setText(StringUtil.EMPTY);
                fSearchBox.addModifyListener(fSearchModifyListener);
            }
            fSearchBox.setForeground(null);
        }
    });

    fTreeViewer = new TreeViewer(fMainControl, SWT.VIRTUAL | SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
    fTreeViewer.addSelectionChangedListener(this);
    fTreeViewer.getControl().setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create());

    ((IContextService) getSite().getService(IContextService.class)).activateContext(OUTLINE_CONTEXT);

    final TreeViewer viewer = getTreeViewer();
    viewer.setUseHashlookup(true);
    viewer.setContentProvider(fContentProvider);
    viewer.setLabelProvider(fLabelProvider);
    fInput = new CommonOutlinePageInput(fEditor.getAST());
    // Note: the input remains the same (we change its internal contents with a new ast and call refresh,
    // so that the outline structure is maintained).
    viewer.setInput(fInput);
    viewer.setComparator(isSortingEnabled() ? new ViewerComparator() : null);
    fFilter = new PatternFilter() {

        @Override
        protected boolean isLeafMatch(Viewer viewer, Object element) {
            String label = null;
            if (element instanceof CommonOutlineItem) {
                label = ((CommonOutlineItem) element).getLabel();
            } else if (element instanceof IParseNode) {
                label = ((IParseNode) element).getText();
            }

            if (label == null) {
                return true;
            }
            return wordMatches(label);
        }
    };
    fFilter.setIncludeLeadingWildcard(true);
    viewer.addFilter(fFilter);
    viewer.addDoubleClickListener(new IDoubleClickListener() {

        public void doubleClick(DoubleClickEvent event) {
            IStructuredSelection selection = (IStructuredSelection) event.getSelection();
            // expands the selection one level if applicable
            viewer.expandToLevel(selection.getFirstElement(), 1);
            // selects the corresponding text in editor
            if (!isLinkedWithEditor()) {
                setEditorSelection(selection, true);
            }
        }
    });
    viewer.getTree().addKeyListener(new KeyListener() {

        public void keyPressed(KeyEvent e) {
        }

        public void keyReleased(KeyEvent e) {
            if (e.keyCode == '\r' && isLinkedWithEditor()) {
                ISelection selection = viewer.getSelection();
                if (!selection.isEmpty() && selection instanceof IStructuredSelection) {
                    IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
                    if (page != null) {
                        // brings editor to focus
                        page.activate(fEditor);
                        // deselects the current selection but keeps the cursor position
                        Object widget = fEditor.getAdapter(Control.class);
                        if (widget instanceof StyledText)
                            fEditor.selectAndReveal(((StyledText) widget).getCaretOffset(), 0);
                    }
                }
            }
        }
    });

    hookToThemes();

    IActionBars actionBars = getSite().getActionBars();
    registerActions(actionBars);
    actionBars.updateActionBars();

    fPrefs.addPropertyChangeListener(this);
    fFilterRefreshJob = new WorkbenchJob("Refresh Filter") //$NON-NLS-1$
    {

        @Override
        public IStatus runInUIThread(IProgressMonitor monitor) {
            if (isDisposed()) {
                return Status.CANCEL_STATUS;
            }

            fTreeViewer.refresh();
            String text = fSearchBox.getText();
            if (!StringUtil.isEmpty(text) && !INITIAL_FILTER_TEXT.equals(text)) {
                fTreeViewer.expandAll();
            }
            return Status.OK_STATUS;
        }
    };
    EclipseUtil.setSystemForJob(fFilterRefreshJob);
}

From source file:com.aptana.editor.common.outline.CommonOutlinePage.java

License:Open Source License

private void setEditorSelection(IStructuredSelection selection, boolean checkIfActive) {
    if (selection.size() == 1) {
        Object element = selection.getFirstElement();
        if (element instanceof IRange) {
            // selects the range in the editor
            fEditor.select((IRange) element, checkIfActive);
        }/*  w  w w.  j a  v  a 2  s. c  o m*/
    }
}

From source file:com.aptana.editor.common.outline.CommonQuickOutlinePage.java

License:Open Source License

private void gotoSelectedElement() {
    ISelection selection = getSelection();
    if (selection instanceof IStructuredSelection) {
        IStructuredSelection structured = (IStructuredSelection) selection;
        // If a node in the outline view is selected
        if (structured.size() == 1) {
            Object element = structured.getFirstElement();

            if (element instanceof CommonOutlineItem) {
                CommonOutlineItem item = (CommonOutlineItem) element;
                this._editor.selectAndReveal(item.getStartingOffset(), item.getLength());
                closeDialog();// w  w w .  j  a  va  2 s  .c o  m
            } else if (element instanceof IParseNode) {
                int position = ((IParseNode) element).getStartingOffset();
                this._editor.selectAndReveal(position, 0);
                closeDialog();
            }
            return;
        }
    }

    this._editor.getISourceViewer().removeRangeIndication();
}

From source file:com.aptana.editor.common.preferences.ValidationPreferencePage.java

License:Open Source License

private IBuildParticipantWorkingCopy getSelectedBuildParticipant() {
    IStructuredSelection selection = (IStructuredSelection) validatorsViewer.getSelection();
    if (selection.isEmpty()) {
        return null;
    }/*  w ww. j  a va2s .com*/
    return (IBuildParticipantWorkingCopy) selection.getFirstElement();
}

From source file:com.aptana.editor.php.internal.ui.preferences.PHPLibrariesPreferencePage.java

License:Open Source License

@Override
protected Control createContents(Composite parent) {
    Composite body = new Composite(parent, SWT.NONE);

    body.setLayout(new GridLayout(1, false));
    Label label = new Label(body, SWT.NONE | SWT.WRAP);
    label.setText(Messages.PHPLibrariesPreferencePage_librariesTitle);
    final Map<URL, Image> images = new HashMap<URL, Image>();
    Composite tableAndButton = new Composite(body, SWT.NONE);
    tableAndButton.setLayout(new GridLayout(2, false));
    newCheckList = CheckboxTableViewer.newCheckList(tableAndButton, SWT.BORDER);
    newCheckList.setContentProvider(new ArrayContentProvider());
    newCheckList.setInput(LibraryManager.getInstance().getAllLibraries());
    Composite buttons = new Composite(tableAndButton, SWT.NONE);
    buttons.setLayout(new GridLayout(1, false));
    newCheckList.setComparator(new ViewerComparator());
    newCheckList.setLabelProvider(new LibraryLabelProvider(images));
    GridData layoutData = new GridData(GridData.FILL_BOTH);
    layoutData.minimumHeight = 400;/*from  w ww .j  a  v  a 2s . c o m*/
    newCheckList.getControl().setLayoutData(layoutData);
    body.addDisposeListener(new DisposeListener() {

        public void widgetDisposed(DisposeEvent e) {
            for (Image m : images.values()) {
                m.dispose();
            }
        }

    });
    layoutData = new GridData();
    layoutData.heightHint = 400;
    body.setLayoutData(layoutData);
    for (IPHPLibrary l : LibraryManager.getInstance().getAllLibraries()) {
        newCheckList.setChecked(l, l.isTurnedOn());
    }

    buttons.setLayoutData(new GridData(GridData.FILL_VERTICAL));
    Button add = new Button(buttons, SWT.PUSH);
    add.setText(Messages.PHPLibrariesPreferencePage_newUserLibrary);
    add.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    add.addSelectionListener(new SelectionListener() {

        public void widgetDefaultSelected(SelectionEvent e) {

        }

        public void widgetSelected(SelectionEvent e) {
            PHPLibraryDialog libraryDialog = new PHPLibraryDialog(Display.getCurrent().getActiveShell(), null,
                    getContent());
            if (libraryDialog.open() == Dialog.OK) {
                UserLibrary result = libraryDialog.getResult();
                newCheckList.add(result);
                newCheckList.setChecked(result, true);
            }
        }

    });
    final Button edit = new Button(buttons, SWT.PUSH);
    edit.addSelectionListener(new SelectionListener() {

        public void widgetDefaultSelected(SelectionEvent e) {
            // empty
        }

        public void widgetSelected(SelectionEvent e) {
            IStructuredSelection ss = (IStructuredSelection) newCheckList.getSelection();
            UserLibrary firstElement = (UserLibrary) ss.getFirstElement();
            PHPLibraryDialog libraryDialog = new PHPLibraryDialog(Display.getCurrent().getActiveShell(),
                    firstElement, getContent());
            if (libraryDialog.open() == Dialog.OK) {
                newCheckList.remove(firstElement);
                newCheckList.add(libraryDialog.getResult());
            }
        }

    });
    edit.setText(Messages.PHPLibrariesPreferencePage_editLibrary);
    edit.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    final Button remove = new Button(buttons, SWT.PUSH);
    remove.addSelectionListener(new SelectionListener() {

        public void widgetDefaultSelected(SelectionEvent e) {

        }

        public void widgetSelected(SelectionEvent e) {
            IStructuredSelection ss = (IStructuredSelection) newCheckList.getSelection();
            for (Object o : ss.toArray()) {
                newCheckList.remove(o);
            }
        }

    });
    remove.setText(Messages.PHPLibrariesPreferencePage_removeLibrary);
    tableAndButton.setLayoutData(new GridData(GridData.FILL_BOTH));
    remove.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    newCheckList.addSelectionChangedListener(new ISelectionChangedListener() {

        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection ss = (IStructuredSelection) event.getSelection();
            if (ss.isEmpty() || ss.getFirstElement() instanceof PHPLibrary) {
                edit.setEnabled(false);
                remove.setEnabled(false);
                return;
            }
            edit.setEnabled(true);
            remove.setEnabled(true);
        }

    });
    Button selectAll = new Button(buttons, SWT.PUSH);
    selectAll.setText(Messages.LibrariesPage_selectAll);
    selectAll.addSelectionListener(new SelectAction(true));
    Button deselectAll = new Button(buttons, SWT.PUSH);
    deselectAll.setText(Messages.LibrariesPage_deselectAll);
    selectAll.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    deselectAll.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    deselectAll.addSelectionListener(new SelectAction(false));
    edit.setEnabled(false);
    remove.setEnabled(false);
    return body;
}

From source file:com.aptana.git.ui.actions.AbstractDynamicBranchItem.java

License:Open Source License

protected IResource getSelectedResource() {
    IEvaluationService evalService = (IEvaluationService) serviceLocator.getService(IEvaluationService.class);

    if (evalService != null) {
        IEvaluationContext context = evalService.getCurrentState();
        IWorkbenchPart activePart = (IWorkbenchPart) context.getVariable(ISources.ACTIVE_PART_NAME);
        if (activePart instanceof IEditorPart) {
            IEditorInput input = (IEditorInput) context.getVariable(ISources.ACTIVE_EDITOR_INPUT_NAME);
            return (IResource) input.getAdapter(IResource.class);
        }//from   ww  w . j a va  2  s .c om
        ISelection selection = (ISelection) context.getVariable(ISources.ACTIVE_CURRENT_SELECTION_NAME);
        if (selection instanceof IStructuredSelection) {
            IStructuredSelection struct = (IStructuredSelection) selection;
            Object firstElement = struct.getFirstElement();
            if (firstElement instanceof IResource) {
                return (IResource) firstElement;
            } else if (firstElement instanceof IAdaptable) {
                IAdaptable adaptable = (IAdaptable) firstElement;
                return (IResource) adaptable.getAdapter(IResource.class);
            }
        }
    }
    return null;
}

From source file:com.aptana.git.ui.internal.actions.AttachGitRepoHandler.java

License:Open Source License

private IProject getSelectedProject(Object applicationContext) {
    ISelection sel = getSelection(applicationContext);
    if (sel == null || sel.isEmpty() || !(sel instanceof IStructuredSelection)) {
        return null;
    }/*from w  w w  . j a  v a  2s.  co m*/
    IStructuredSelection structured = (IStructuredSelection) sel;
    Object first = structured.getFirstElement();
    IResource resource = null;
    if (first instanceof IResource) {
        resource = (IResource) first;
    } else if (first instanceof IAdaptable) {
        IAdaptable adaptable = (IAdaptable) first;
        resource = (IResource) adaptable.getAdapter(IResource.class);
    }

    if (resource != null) {
        return resource.getProject();
    }

    return null;
}

From source file:com.aptana.git.ui.internal.actions.CherryPickHandler.java

License:Open Source License

private GitCommit getCommit(IEvaluationContext evaluationContext) {
    ISelection selection = null;/*from  w ww.  j  av  a  2 s.c  o  m*/
    Object part = evaluationContext.getVariable(ISources.ACTIVE_PART_NAME);
    if (part instanceof IHistoryView) {
        IHistoryView view = (IHistoryView) part;
        IHistoryPage page = view.getHistoryPage();
        if (page instanceof GitHistoryPage) {
            GitHistoryPage ghp = (GitHistoryPage) page;
            selection = ghp.getSelectionProvider().getSelection();

            if (selection instanceof IStructuredSelection) {
                IStructuredSelection ss = (IStructuredSelection) selection;
                Object selected = ss.getFirstElement();
                if (selected instanceof GitCommit) {
                    return (GitCommit) selected;
                }
            }
        }
    }
    return null;
}