Java tutorial
/******************************************************************************* * Copyright (c) 2014, Paul Weingardt * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Paul Weingardt - initial API and implementation *******************************************************************************/ package de.weingardt.mylyn.gitlab.ui; import java.util.ArrayList; import org.apache.commons.lang.StringUtils; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.wizard.IWizardPage; import org.eclipse.mylyn.tasks.core.IRepositoryQuery; import org.eclipse.mylyn.tasks.core.TaskRepository; import org.eclipse.mylyn.tasks.ui.wizards.AbstractRepositoryQueryPage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.FocusEvent; import org.eclipse.swt.events.FocusListener; import org.eclipse.swt.events.KeyEvent; import org.eclipse.swt.events.KeyListener; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.TableItem; import org.eclipse.swt.widgets.Text; import org.gitlab.api.models.GitlabIssue; import org.gitlab.api.models.GitlabMilestone; import de.weingardt.mylyn.gitlab.core.ConnectionManager; import de.weingardt.mylyn.gitlab.core.GitlabConnection; public class GitlabQueryPage extends AbstractRepositoryQueryPage implements IWizardPage { private Button openButton; private Button closedButton; private Text titleText; private Text assigneeText; private Text newLabel; private Combo milestoneCombo; private TableViewer labelsViewer; private SelectionListener completeListener = new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { setPageComplete(isPageComplete()); } }; /** * @param pageName * @param taskRepository * @param query */ public GitlabQueryPage(String pageName, TaskRepository taskRepository, IRepositoryQuery query) { super(pageName, taskRepository, query); setDescription("Specify your query"); setPageComplete(false); } private void createLabelsArea(Composite parent) { Group labelsArea = new Group(parent, SWT.NONE); labelsArea.setText(Strings.QUERY_GROUP_LABELS); GridDataFactory.fillDefaults().grab(true, true).applyTo(labelsArea); GridLayoutFactory.swtDefaults().applyTo(labelsArea); labelsViewer = new TableViewer(labelsArea, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL); GridDataFactory.fillDefaults().grab(true, true).hint(100, 80).applyTo(labelsViewer.getControl()); labelsViewer.setContentProvider(ArrayContentProvider.getInstance()); labelsViewer.setLabelProvider(new LabelProvider() { public Image getImage(Object element) { return GitlabImages.IMAGE_LABEL; } }); newLabel = new Text(labelsArea, SWT.BORDER); GridDataFactory.fillDefaults().grab(true, false).applyTo(newLabel); Composite btnArea = new Composite(labelsArea, SWT.NONE); GridDataFactory.fillDefaults().grab(true, true).applyTo(btnArea); GridLayoutFactory.swtDefaults().numColumns(2).equalWidth(true).applyTo(btnArea); final Button btnAdd = new Button(btnArea, SWT.BORDER); btnAdd.setText(Strings.QUERY_NEW_LABEL_REGEX); GridDataFactory.fillDefaults().grab(true, false).applyTo(btnAdd); Button btnRemove = new Button(btnArea, SWT.BORDER); btnRemove.setText(Strings.QUERY_REMOVE_LABEL_REGEX); GridDataFactory.fillDefaults().grab(true, false).applyTo(btnRemove); btnAdd.addSelectionListener(new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { String[] split = newLabel.getText().split(","); for (String s : split) { if (s.trim().length() > 0) { labelsViewer.add(s.trim()); } } newLabel.setText(""); } @Override public void widgetDefaultSelected(SelectionEvent e) { } }); btnRemove.addSelectionListener(new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { removeSelection(); } @Override public void widgetDefaultSelected(SelectionEvent e) { } }); newLabel.addFocusListener(new FocusListener() { @Override public void focusLost(FocusEvent e) { getShell().setDefaultButton(null); setPageComplete(isPageComplete()); } @Override public void focusGained(FocusEvent e) { getShell().setDefaultButton(btnAdd); } }); labelsViewer.getTable().addKeyListener(new KeyListener() { @Override public void keyReleased(KeyEvent e) { if (e.keyCode == SWT.DEL) { removeSelection(); } } @Override public void keyPressed(KeyEvent e) { } }); } private void removeSelection() { StructuredSelection selection = (StructuredSelection) labelsViewer.getSelection(); if (!selection.isEmpty()) { labelsViewer.remove(selection.toArray()); } } private void createOptionsArea(Composite parent) { Composite optionsArea = new Composite(parent, SWT.NONE); GridLayoutFactory.fillDefaults().numColumns(2).applyTo(optionsArea); GridDataFactory.fillDefaults().grab(true, true).applyTo(optionsArea); Composite statusArea = new Composite(optionsArea, SWT.NONE); GridLayoutFactory.fillDefaults().numColumns(4).equalWidth(false).applyTo(statusArea); GridDataFactory.fillDefaults().grab(true, false).span(2, 1).applyTo(statusArea); new Label(statusArea, SWT.NONE).setText(Strings.QUERY_STATE); openButton = new Button(statusArea, SWT.CHECK); openButton.setSelection(true); openButton.setText(GitlabIssue.StateOpened); openButton.addSelectionListener(completeListener); closedButton = new Button(statusArea, SWT.CHECK); closedButton.setSelection(true); closedButton.setText(GitlabIssue.StateClosed); closedButton.addSelectionListener(completeListener); Label milestonesLabel = new Label(optionsArea, SWT.NONE); milestonesLabel.setText(Strings.QUERY_MILESTONE); milestoneCombo = new Combo(optionsArea, SWT.DROP_DOWN | SWT.READ_ONLY); GridDataFactory.fillDefaults().grab(true, false).applyTo(milestoneCombo); GitlabConnection connection = ConnectionManager.getSafe(getTaskRepository()); if (connection != null) { milestoneCombo.add(""); for (GitlabMilestone s : connection.getMilestones()) { milestoneCombo.add(s.getTitle()); } } Label assigneeLabel = new Label(optionsArea, SWT.NONE); assigneeLabel.setText(Strings.QUERY_ASSIGNEE); assigneeText = new Text(optionsArea, SWT.BORDER | SWT.SINGLE); GridDataFactory.fillDefaults().grab(true, false).applyTo(assigneeText); } public void createControl(Composite parent) { Composite displayArea = new Composite(parent, SWT.NONE); GridLayoutFactory.fillDefaults().numColumns(2).equalWidth(true).applyTo(displayArea); GridDataFactory.fillDefaults().grab(true, true).applyTo(displayArea); if (!inSearchContainer()) { Composite titleArea = new Composite(displayArea, SWT.NONE); GridLayoutFactory.fillDefaults().numColumns(2).applyTo(titleArea); GridDataFactory.fillDefaults().grab(true, false).span(2, 1).applyTo(titleArea); new Label(titleArea, SWT.NONE).setText(Strings.QUERY_TITLE); titleText = new Text(titleArea, SWT.SINGLE | SWT.BORDER); GridDataFactory.fillDefaults().grab(true, false).applyTo(titleText); titleText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { setPageComplete(isPageComplete()); } }); } createOptionsArea(displayArea); createLabelsArea(displayArea); initialize(); setControl(displayArea); } private void initialize() { IRepositoryQuery query = getQuery(); if (query == null) { return; } titleText.setText(query.getSummary()); assigneeText.setText(query.getAttribute("assignee")); milestoneCombo.setText(query.getAttribute("milestone")); openButton.setSelection(Boolean.parseBoolean(query.getAttribute("opened"))); closedButton.setSelection(Boolean.parseBoolean(query.getAttribute("closed"))); for (String label : query.getAttribute("labels").split(",")) { if (label.trim().length() > 0) { labelsViewer.add(label.trim()); } } } public boolean isPageComplete() { boolean complete = inSearchContainer() ? true : super.isPageComplete(); if (complete) { String message = null; if (!openButton.getSelection() && !closedButton.getSelection()) { message = "Select either closed, opened or both issue states"; } setErrorMessage(message); complete = message == null; } return complete; } public String getQueryTitle() { return titleText != null ? titleText.getText() : null; } public void applyTo(IRepositoryQuery query) { query.setSummary(titleText.getText()); query.setAttribute("assignee", assigneeText.getText()); query.setAttribute("milestone", milestoneCombo.getText()); query.setAttribute("opened", "" + openButton.getSelection()); query.setAttribute("closed", "" + closedButton.getSelection()); ArrayList<String> labels = new ArrayList<String>(); for (TableItem i : labelsViewer.getTable().getItems()) { labels.add(i.getText()); } query.setAttribute("labels", StringUtils.join(labels, ",")); } }