Java tutorial
/* * $Id$ * * SARL is an general-purpose agent programming language. * More details on http://www.sarl.io * * Copyright (C) 2014-2017 the original authors or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package io.sarl.eclipse.log; import java.net.URL; import java.text.MessageFormat; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.preferences.IEclipsePreferences; import org.eclipse.debug.internal.ui.SWTFactory; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.ErrorDialog; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.wizard.IWizard; import org.eclipse.jface.wizard.WizardDialog; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Link; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.PartInitException; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.browser.IWebBrowser; import org.eclipse.xtext.util.Strings; import org.osgi.service.prefs.BackingStoreException; import io.sarl.eclipse.SARLEclipsePlugin; /** * Page for entering information on an issue to submit to the SARL tracker. * * @author $Author: sgalland$ * @version $FullVersion$ * @mavengroupid $GroupId$ * @mavenartifactid $ArtifactId$ * @since 0.5 */ public class IssueInformationPage extends WizardPage { /** Preference key that stores the Github login. */ public static final String PREFERENCE_LOGIN = IssueInformationPage.class.getName() + ".githubLogin"; //$NON-NLS-1$ private static final char ECHO_CHAR = '*'; private final URL link; private Text titleField; private Text descriptionField; private Text trackerLogin; private Text trackerPassword; /** Constructor. * * @param link the link to put in the page. */ protected IssueInformationPage(URL link) { super(Messages.IssueInformationPage_0); this.link = link; setTitle(Messages.SubmitEclipseLogWizard_0); } @Override public void createControl(Composite parent) { // create a composite with standard margins and spacing final Composite composite = new Composite(parent, SWT.NONE); final GridLayout layout = new GridLayout(); layout.numColumns = 2; composite.setLayout(layout); composite.setLayoutData(new GridData(GridData.FILL_BOTH)); if (this.link != null) { final Link linkWidget = new Link(composite, SWT.BORDER); linkWidget.setText(MessageFormat.format(Messages.IssueInformationPage_9, this.link.toString())); linkWidget.setFont(composite.getFont()); final GridData gd = new GridData(GridData.FILL_HORIZONTAL); gd.horizontalSpan = 2; linkWidget.setLayoutData(gd); linkWidget.addSelectionListener(new SelectionAdapter() { @SuppressWarnings("synthetic-access") @Override public void widgetSelected(SelectionEvent event) { try { final IWebBrowser browser = PlatformUI.getWorkbench().getBrowserSupport() .getExternalBrowser(); browser.openURL(IssueInformationPage.this.link); final IWizard wizard = IssueInformationPage.this.getWizard(); if (wizard instanceof SubmitEclipseLogWizard) { final WizardDialog dialog = ((SubmitEclipseLogWizard) wizard).getWizardDialog(); if (dialog != null) { dialog.close(); } } } catch (PartInitException e) { // } } }); } SWTFactory.createLabel(composite, Messages.IssueInformationPage_1, 1); this.titleField = SWTFactory.createSingleText(composite, 1); SWTFactory.createLabel(composite, Messages.IssueInformationPage_2, 1); this.descriptionField = SWTFactory.createText(composite, SWT.MULTI | SWT.BORDER | SWT.WRAP | SWT.V_SCROLL, 1); this.descriptionField.setLayoutData(new GridData(GridData.FILL_BOTH)); SWTFactory.createLabel(composite, Messages.IssueInformationPage_3, 1); this.trackerLogin = SWTFactory.createSingleText(composite, 1); SWTFactory.createLabel(composite, Messages.IssueInformationPage_4, 1); this.trackerPassword = SWTFactory.createSingleText(composite, 1); this.trackerPassword.setEchoChar(ECHO_CHAR); //add the listeners now to prevent them from monkeying with initialized settings this.titleField.addModifyListener((listeningEvent) -> { updatePageStatus(); }); this.descriptionField.addModifyListener((listeningEvent) -> { updatePageStatus(); }); this.trackerLogin.addModifyListener((listeningEvent) -> { updatePageStatus(); }); this.trackerPassword.addModifyListener((listeningEvent) -> { updatePageStatus(); }); Dialog.applyDialogFont(composite); setControl(composite); initFields(); updatePageStatus(); } /** Replies the title of the issue. * * @return the title. */ public String getIssueTitle() { return this.titleField.getText(); } /** Replies the description of the issue. * * @return the description. */ public String getIssueDescription() { return this.descriptionField.getText(); } /** Replies the Github login. * * @return the login. */ public String getGithubLogin() { return this.trackerLogin.getText(); } /** Replies the Github password. * * @return the password. */ public String getGithubPassword() { return this.trackerPassword.getText(); } /** Set the initial values to the fields. */ protected void initFields() { final IEclipsePreferences prefs = SARLEclipsePlugin.getDefault().getPreferences(); this.trackerLogin.setText(prefs.get(PREFERENCE_LOGIN, "")); //$NON-NLS-1$ } /** Update the page status and change the "finish" state button. */ protected void updatePageStatus() { final boolean ok; if (Strings.isEmpty(this.titleField.getText())) { ok = false; setMessage(Messages.IssueInformationPage_5, IMessageProvider.ERROR); } else if (Strings.isEmpty(this.trackerLogin.getText())) { ok = false; setMessage(Messages.IssueInformationPage_6, IMessageProvider.ERROR); } else if (Strings.isEmpty(this.trackerPassword.getText())) { ok = false; setMessage(Messages.IssueInformationPage_7, IMessageProvider.ERROR); } else { ok = true; if (Strings.isEmpty(this.descriptionField.getText())) { setMessage(Messages.IssueInformationPage_8, IMessageProvider.WARNING); } else { setMessage(null, IMessageProvider.NONE); } } setPageComplete(ok); } /** Invoked when the wizard is closed with the "Finish" button. * * @return {@code true} for closing the wizard; {@code false} for keeping it open. */ public boolean performFinish() { final IEclipsePreferences prefs = SARLEclipsePlugin.getDefault().getPreferences(); final String login = this.trackerLogin.getText(); if (Strings.isEmpty(login)) { prefs.remove(PREFERENCE_LOGIN); } else { prefs.put(PREFERENCE_LOGIN, login); } try { prefs.sync(); return true; } catch (BackingStoreException e) { ErrorDialog.openError(getShell(), e.getLocalizedMessage(), e.getLocalizedMessage(), SARLEclipsePlugin.getDefault().createStatus(IStatus.ERROR, e)); return false; } } }