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

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

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Introduction

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

Prototype

public boolean isEmpty();

Source Link

Document

Returns whether this selection is empty.

Usage

From source file:com.android.sdkuilib.internal.repository.ui.AddonSitesDialog.java

License:Apache License

private void userNewOrEdit(final boolean isEdit) {
    final SdkSource[] knownSources = mSources.getAllSources();
    String title = isEdit ? "Edit Add-on Site URL" : "Add Add-on Site URL";
    String msg = "Please enter the URL of the addon.xml:";
    IStructuredSelection sel = (IStructuredSelection) mUserTableViewer.getSelection();
    final String initialValue = !isEdit || sel.isEmpty() ? null : sel.getFirstElement().toString();

    if (isEdit && initialValue == null) {
        // Edit with no actual value is not supposed to happen. Ignore this case.
        return;//from  ww w  . jav  a2s. co  m
    }

    InputDialog dlg = new InputDialog(getShell(), title, msg, initialValue, new IInputValidator() {
        @Override
        public String isValid(String newText) {

            newText = newText == null ? null : newText.trim();

            if (newText == null || newText.length() == 0) {
                return "Error: URL field is empty. Please enter a URL.";
            }

            // A URL should have one of the following prefixes
            if (!newText.startsWith("file://") && //$NON-NLS-1$
            !newText.startsWith("ftp://") && //$NON-NLS-1$
            !newText.startsWith("http://") && //$NON-NLS-1$
            !newText.startsWith("https://")) { //$NON-NLS-1$
                return "Error: The URL must start by one of file://, ftp://, http:// or https://";
            }

            if (isEdit && newText.equals(initialValue)) {
                // Edited value hasn't changed. This isn't an error.
                return null;
            }

            // Reject URLs that are already in the source list.
            // URLs are generally case-insensitive (except for file:// where it all depends
            // on the current OS so we'll ignore this case.)
            for (SdkSource s : knownSources) {
                if (newText.equalsIgnoreCase(s.getUrl())) {
                    return "Error: This site is already listed.";
                }
            }

            return null;
        }
    });

    if (dlg.open() == Window.OK) {
        String url = dlg.getValue().trim();

        if (!url.equals(initialValue)) {
            if (isEdit && initialValue != null) {
                // Remove the old value before we add the new one, which is we just
                // asserted will be different.
                for (SdkSource source : mSources.getSources(SdkSourceCategory.USER_ADDONS)) {
                    if (initialValue.equals(source.getUrl())) {
                        mSources.remove(source);
                        break;
                    }
                }

            }

            // create the source, store it and update the list
            SdkSource newSource;
            // use url suffix to decide whether this is a SysImg or Addon;
            // see SdkSources.loadUserAddons() for another check like this
            if (url.endsWith(SdkSysImgConstants.URL_DEFAULT_FILENAME)) {
                newSource = new SdkSysImgSource(url, null/*uiName*/);
            } else {
                newSource = new SdkAddonSource(url, null/*uiName*/);
            }
            mSources.add(SdkSourceCategory.USER_ADDONS, newSource);
            setReturnValue(true);
            // notify sources change listeners. This will invoke our own loadUserUrlsList().
            mSources.notifyChangeListeners();

            // select the new source
            IStructuredSelection newSel = new StructuredSelection(newSource);
            mUserTableViewer.setSelection(newSel, true /*reveal*/);
        }
    }
}

From source file:com.android.sdkuilib.internal.repository.ui.AddonSitesDialog.java

License:Apache License

private void on_UserButtonDelete_widgetSelected(SelectionEvent e) {
    IStructuredSelection sel = (IStructuredSelection) mUserTableViewer.getSelection();
    String selectedUrl = sel.isEmpty() ? null : sel.getFirstElement().toString();

    if (selectedUrl == null) {
        return;//from  w  ww.  j  a va2 s  .  co  m
    }

    MessageBox mb = new MessageBox(getShell(), SWT.YES | SWT.NO | SWT.ICON_QUESTION | SWT.APPLICATION_MODAL);
    mb.setText("Delete add-on site");
    mb.setMessage(String.format("Do you want to delete the URL %1$s?", selectedUrl));
    if (mb.open() == SWT.YES) {
        for (SdkSource source : mSources.getSources(SdkSourceCategory.USER_ADDONS)) {
            if (selectedUrl.equals(source.getUrl())) {
                mSources.remove(source);
                setReturnValue(true);
                mSources.notifyChangeListeners();
                break;
            }
        }
    }
}

From source file:com.appnativa.studio.wizards.ScreenSupport.java

License:Open Source License

public String getWorkspaceViewer() {
    IStructuredSelection sel = ((IStructuredSelection) workspaceViewer.getSelection());

    if ((sel != null) && !sel.isEmpty()) {
        return ((Node) sel.getFirstElement()).id;
    }//w  w w  .ja  va2s.  c  o  m

    return 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 ww w .  jav  a2  s. c  o m
            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.preferences.ValidationPreferencePage.java

License:Open Source License

private IBuildParticipantWorkingCopy getSelectedBuildParticipant() {
    IStructuredSelection selection = (IStructuredSelection) validatorsViewer.getSelection();
    if (selection.isEmpty()) {
        return null;
    }/*www. j  a  va2 s.  co m*/
    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;/*  w  w w. j av a  2s. co  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.ide.debug.internal.ui.launchConfigurations.HttpServerSettingsTab.java

License:Open Source License

private void updatePage(IStructuredSelection selection) {
    fRemoveButton.setEnabled(!selection.isEmpty());
    fEditButton.setEnabled(selection.size() == 1);
}

From source file:com.aptana.ide.debug.internal.ui.preferences.JSDetailFormattersPreferencePage.java

License:Open Source License

private void updatePage(IStructuredSelection selection) {
    removeFormatterButton.setEnabled(!selection.isEmpty());
    editFormatterButton.setEnabled(selection.size() == 1);
    sourceViewer.getDocument()/*  www .  j  a v  a 2  s .c om*/
            .set(selection.size() == 1 ? ((DetailFormatter) selection.getFirstElement()).getSnippet()
                    : StringUtils.EMPTY);
}

From source file:com.aptana.ide.search.AptanaFileSearchPage.java

License:Open Source License

private void doAdd(IMenuManager mgr) {
    IStructuredSelection selection = (IStructuredSelection) getViewer().getSelection();
    if (!selection.isEmpty()) {
        ReplaceAction replaceSelection = new ReplaceAction(getSite().getShell(), (FileSearchResult) getInput(),
                selection.toArray(), true);
        replaceSelection.setText(SearchMessages.ReplaceAction_label_selected);
        mgr.appendToGroup(IContextMenuConstants.GROUP_REORGANIZE, replaceSelection);
    }// w w  w .ja  va  2s .c o m
    ReplaceAction replaceAll = new ReplaceAction(getSite().getShell(), (FileSearchResult) getInput(), null,
            true);
    replaceAll.setText(SearchMessages.ReplaceAction_label_all);
    mgr.appendToGroup(IContextMenuConstants.GROUP_REORGANIZE, replaceAll);
}

From source file:com.aptana.ide.search.ui.filesystem.AptanaFileSystemSearchPage.java

License:Open Source License

/**
 * @see org.eclipse.search.internal.ui.text.FileSearchPage#fillContextMenu(org.eclipse.jface.action.IMenuManager)
 */// www  .j  a v a2s  .  c  o m
protected void fillContextMenu(IMenuManager mgr) {
    super.fillContextMenu(mgr);

    // should be here if our layout is active
    IStructuredSelection selection = (IStructuredSelection) getViewer().getSelection();
    if (!selection.isEmpty()) {
        FileSystemReplaceAction replaceSelection = new FileSystemReplaceAction(getSite().getShell(),
                (FileSystemSearchResult) getInput(), selection.toArray(), true);
        replaceSelection.setText(SearchMessages.ReplaceAction_label_selected);
        mgr.appendToGroup(IContextMenuConstants.GROUP_REORGANIZE, replaceSelection);
    }
    FileSystemReplaceAction replaceAll = new FileSystemReplaceAction(getSite().getShell(),
            (FileSystemSearchResult) getInput(), null, true);
    replaceAll.setText(SearchMessages.ReplaceAction_label_all);
    mgr.appendToGroup(IContextMenuConstants.GROUP_REORGANIZE, replaceAll);

    if (this.layout == AptanaFileSystemSearchPage.LAYOUT_MATCHES) {
        Separator find = (Separator) mgr.find(IContextMenuConstants.GROUP_VIEWER_SETUP);
        IContributionItem[] items = find.getParent().getItems();
        int indexOf = Arrays.asList(items).indexOf(find);
        MenuManager contributionItem = (MenuManager) items[indexOf + 1];
        IContributionItem[] items2 = contributionItem.getItems();
        ActionContributionItem it0 = (ActionContributionItem) items2[0];
        ActionContributionItem it1 = (ActionContributionItem) items2[1];
        it0.getAction().setChecked(fOrder == AptanaFileSystemSearchPage.SHOW_LABEL_PATH);
        it1.getAction().setChecked(fOrder == AptanaFileSystemSearchPage.SHOW_PATH_LABEL);
    }
}