Java tutorial
/* * Copyright (c) 2013, the Dart project authors. * * Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html * * 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 com.google.dart.tools.debug.ui.internal.chromeapp; import com.google.dart.tools.core.model.DartSdkManager; import com.google.dart.tools.debug.core.DartLaunchConfigWrapper; import com.google.dart.tools.debug.ui.internal.DartDebugUIPlugin; import com.google.dart.tools.debug.ui.internal.dartium.DartiumLaunchMessages; import com.google.dart.tools.debug.ui.internal.util.AppSelectionDialog; import com.google.dart.tools.debug.ui.internal.util.IResourceFilter; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.IWorkspace; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.Path; import org.eclipse.debug.core.ILaunchConfiguration; import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy; import org.eclipse.debug.ui.AbstractLaunchConfigurationTab; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.layout.PixelConverter; import org.eclipse.swt.SWT; 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.graphics.Image; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.dialogs.FilteredItemsSelectionDialog; /** * The main UI tab for Chrome app launches. */ public class ChromeAppMainTab extends AbstractLaunchConfigurationTab { public static class ManifestResourceFilter implements IResourceFilter { @Override public boolean matches(IResource resource) { return resource.getName().equals("manifest.json"); } } private Text fileText; protected ModifyListener textModifyListener = new ModifyListener() { @Override public void modifyText(ModifyEvent e) { notifyPanelChanged(); } }; public ChromeAppMainTab() { setMessage("Create a configuration to launch a Chrome packaged app"); } @Override public void createControl(Composite parent) { Composite composite = new Composite(parent, SWT.NONE); GridLayoutFactory.swtDefaults().spacing(1, 3).applyTo(composite); // Project group Group group = new Group(composite, SWT.NONE); group.setText(DartiumLaunchMessages.DartiumMainTab_LaunchTarget); GridDataFactory.fillDefaults().grab(true, false).applyTo(group); GridLayoutFactory.swtDefaults().numColumns(2).applyTo(group); Label label = new Label(group, SWT.NONE); label.setText("Select a manifest.json file describing a Chrome packaged app"); GridDataFactory.swtDefaults().span(2, 1).applyTo(label); fileText = new Text(group, SWT.BORDER | SWT.SINGLE); fileText.addModifyListener(textModifyListener); GridDataFactory.swtDefaults().align(SWT.FILL, SWT.CENTER).grab(true, false).applyTo(fileText); Button browseButton = new Button(group, SWT.PUSH); browseButton.setText(DartiumLaunchMessages.DartiumMainTab_Browse); PixelConverter converter = new PixelConverter(browseButton); int widthHint = converter.convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH); GridDataFactory.swtDefaults().align(SWT.FILL, SWT.BEGINNING).hint(widthHint, -1).applyTo(browseButton); browseButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { handleBrowseButton(); } }); setControl(composite); } @Override public String getErrorMessage() { if (performSdkCheck() != null) { return performSdkCheck(); } if (fileText.getText().length() == 0) { return "manifest.json file not specified"; } return null; } @Override public Image getImage() { return DartDebugUIPlugin.getImage("chrome_app.png"); } @Override public String getName() { return "Main"; } @Override public void initializeFrom(ILaunchConfiguration configuration) { DartLaunchConfigWrapper dartLauncher = new DartLaunchConfigWrapper(configuration); fileText.setText(dartLauncher.getApplicationName()); } @Override public boolean isValid(ILaunchConfiguration launchConfig) { return getErrorMessage() == null; } @Override public void performApply(ILaunchConfigurationWorkingCopy configuration) { DartLaunchConfigWrapper dartLauncher = new DartLaunchConfigWrapper(configuration); dartLauncher.setApplicationName(fileText.getText()); } @Override public void setDefaults(ILaunchConfigurationWorkingCopy configuration) { DartLaunchConfigWrapper dartLauncher = new DartLaunchConfigWrapper(configuration); dartLauncher.setApplicationName(""); } protected void handleBrowseButton() { IWorkspace workspace = ResourcesPlugin.getWorkspace(); AppSelectionDialog dialog = new AppSelectionDialog(getShell(), workspace.getRoot(), new ManifestResourceFilter()); dialog.setTitle("Select a manifest.json file"); dialog.setInitialPattern(".", FilteredItemsSelectionDialog.FULL_SELECTION); IPath path = new Path(fileText.getText()); if (workspace.validatePath(path.toString(), IResource.FILE).isOK()) { IFile file = workspace.getRoot().getFile(path); if (file != null && file.exists()) { dialog.setInitialSelections(new Object[] { path }); } } dialog.open(); Object[] results = dialog.getResult(); if ((results != null) && (results.length > 0) && (results[0] instanceof IFile)) { IFile resource = (IFile) results[0]; fileText.setText(resource.getFullPath().toPortableString()); } } protected void notifyPanelChanged() { setDirty(true); updateLaunchConfigurationDialog(); } protected String performSdkCheck() { if (!DartSdkManager.getManager().hasSdk()) { return "Dartium is not installed (" + DartSdkManager.getManager().getSdk().getDartiumWorkingDirectory() + ")"; } else { return null; } } }