Java tutorial
/* * Copyright (C) 2012 The Android Open Source Project * * 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 com.motorolamobility.studio.android.certmanager.ui.wizards; import java.io.File; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.eclipse.core.internal.resources.Folder; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IFolder; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Platform; import org.eclipse.core.runtime.Status; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.DirectoryDialog; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Text; import org.eclipse.swt.widgets.Tree; import org.eclipse.swt.widgets.TreeItem; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.dialogs.ElementTreeSelectionDialog; import org.eclipse.ui.dialogs.ISelectionStatusValidator; import org.eclipse.ui.model.WorkbenchContentProvider; import org.eclipse.ui.model.WorkbenchLabelProvider; import org.eclipse.ui.views.navigator.ResourceComparator; import com.motorolamobility.studio.android.certmanager.CertificateManagerActivator; import com.motorolamobility.studio.android.certmanager.i18n.CertificateManagerNLS; @SuppressWarnings("restriction") public class RemoveExternalPackageSignaturePage extends WizardPage { private Text sourceDirText = null; private Button browseDirButton = null; private Button workspaceDirButton = null; private Tree packagesTree = null; private Button selectAllButton = null; private Button deselectAllButton = null; private WizardSelection selection = null; protected Composite mainComposite = null; /** * Create a new wizard page based on selection * * @param pageName * the page name * @param selection * the selection */ public RemoveExternalPackageSignaturePage(String pageName, IStructuredSelection selection) { super(pageName); setDescription(CertificateManagerNLS.UNSIGN_EXTERNAL_PKG_WIZARD_DESCRIPTION); setTitle(CertificateManagerNLS.UNSIGN_EXTERNAL_PKG_WIZARD_WINDOW_TITLE); this.selection = new WizardSelection(selection); } /* * (non-Javadoc) * * @see * org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets * .Composite) */ @Override public void createControl(Composite parent) { this.mainComposite = new Composite(parent, SWT.NULL); // create new layout with 3 columns of different sizes GridLayout layout = new GridLayout(4, false); this.mainComposite.setLayout(layout); Label sourceDirLabel = new Label(this.mainComposite, SWT.NONE); sourceDirLabel.setText(CertificateManagerNLS.SIGN_EXTERNAL_PKG_WIZARD_SOURCE_DIR_LABEL); GridData layoutData = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1); sourceDirLabel.setLayoutData(layoutData); this.sourceDirText = new Text(this.mainComposite, SWT.BORDER); layoutData = new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1); this.sourceDirText.setLayoutData(layoutData); this.sourceDirText.addListener(SWT.Modify, new SourceDirectoryTextListener()); this.browseDirButton = new Button(this.mainComposite, SWT.PUSH); this.browseDirButton.setText(CertificateManagerNLS.SIGN_EXTERNAL_PKG_WIZARD_FILESYSTEM); layoutData = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1); this.browseDirButton.setLayoutData(layoutData); this.browseDirButton.addListener(SWT.Selection, new BrowseButtonListener()); this.workspaceDirButton = new Button(this.mainComposite, SWT.PUSH); this.workspaceDirButton.setText(CertificateManagerNLS.SIGN_EXTERNAL_PKG_WIZARD_WORKSPACE); layoutData = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1); this.workspaceDirButton.setLayoutData(layoutData); this.workspaceDirButton.addListener(SWT.Selection, new WorkspaceButtonListener()); createExtendedArea(this.mainComposite); createPackageTreeLabel(); this.packagesTree = new Tree(this.mainComposite, SWT.BORDER | SWT.CHECK | SWT.V_SCROLL); layoutData = new GridData(SWT.FILL, SWT.FILL, true, true, 3, 2); layoutData.heightHint = 150; this.packagesTree.setLayoutData(layoutData); this.packagesTree.addListener(SWT.Selection, new TreeSelectionListener()); Composite selectionButtons = new Composite(this.mainComposite, SWT.FILL); layoutData = new GridData(SWT.FILL, SWT.TOP, false, true, 1, 2); selectionButtons.setLayoutData(layoutData); FillLayout row = new FillLayout(SWT.VERTICAL); row.spacing = 3; selectionButtons.setLayout(row); this.selectAllButton = new Button(selectionButtons, SWT.PUSH); this.selectAllButton.setText(CertificateManagerNLS.PACKAGE_EXPORT_WIZARD_AREA_SELECT_ALL_BUTTON); SelectionButtonsListener selectionButtonsListener = new SelectionButtonsListener(); this.selectAllButton.addListener(SWT.Selection, selectionButtonsListener); this.deselectAllButton = new Button(selectionButtons, SWT.PUSH); this.deselectAllButton.setText(CertificateManagerNLS.PACKAGE_EXPORT_WIZARD_AREA_DESELECT_ALL_BUTTON); this.deselectAllButton.addListener(SWT.Selection, selectionButtonsListener); this.sourceDirText.setText(this.selection.getSelectedDirectory()); populateTree(this.selection.getSelectedPackages()); updatePageComplete(); setControl(this.mainComposite); } protected void createPackageTreeLabel() { GridData layoutData; Label packagesLabel = new Label(this.mainComposite, SWT.NONE); packagesLabel.setText(CertificateManagerNLS.RemoveExternalPackageSignaturePage_Package_Tree_Label); layoutData = new GridData(SWT.FILL, SWT.CENTER, false, false, 4, 1); packagesLabel.setLayoutData(layoutData); } /** * Create a composite area after the basic composite Subclasses that need * more than the basic package selection screen should override this method * * @param mainComposite */ protected void createExtendedArea(Composite parent) { PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, CertificateManagerActivator.UNSIGN_EXTERNAL_PKG_WIZARD_CONTEXT_HELP_ID); } /** * Populates the tree with the packages of base dir Requires a valid folder * set as source dir */ private void populateTree(List<String> selection) { File sourceDir = getSourcePath().toFile(); Color gray = new Color(null, 130, 130, 130); this.packagesTree.removeAll(); if (sourceDir.isDirectory() && sourceDir.canWrite()) { File[] list = sourceDir.listFiles(); for (File file : list) { if (file.canRead() && file.isFile() && file.getName().endsWith("apk")) //$NON-NLS-1$ { TreeItem fileItem = new TreeItem(this.packagesTree, SWT.NONE); String text = file.getName(); if (!file.canWrite()) { text += " [" + CertificateManagerNLS.READ_ONLY_TEXT //$NON-NLS-1$ + "]"; //$NON-NLS-1$ fileItem.setForeground(gray); } fileItem.setText(text); fileItem.setData(file); if ((selection != null) && selection.contains(file.getName()) && file.canWrite()) { fileItem.setChecked(true); } } } } } /** * Validates if the source directory is valid one * * @return true if the source dir text is valid, false otherwise */ private boolean isSourceDirValid() { String messageAux = null; int severity = IMessageProvider.NONE; /* * Check if the selected location is valid, even if non existent. */ IPath path = new Path(this.sourceDirText.getText()); // Test if path is blank, to warn user instead of show an error message if (this.sourceDirText.getText().equals("")) //$NON-NLS-1$ { messageAux = CertificateManagerNLS.SIGN_EXTERNAL_PKG_WIZARD_SOURCE_DIR_EMPTY; severity = IMessageProvider.INFORMATION; } /* * Do Win32 Validation */ if ((messageAux == null) && Platform.getOS().equalsIgnoreCase(Platform.OS_WIN32)) { // test path size if (path.toString().length() > 255) { messageAux = CertificateManagerNLS.SELECTOR_MESSAGE_LOCATION_ERROR_PATH_TOO_LONG; severity = IMessageProvider.WARNING; } String device = path.getDevice(); File deviceFile = null; if (device != null) { deviceFile = new File(path.getDevice()); } if ((device != null) && !deviceFile.exists()) { messageAux = CertificateManagerNLS.SELECTOR_MESSAGE_LOCATION_ERROR_INVALID_DEVICE + " [" + device + "]"; severity = IMessageProvider.ERROR; } } // test if path is absolute if (messageAux == null) { if (!path.isAbsolute() || !path.toFile().exists()) { messageAux = CertificateManagerNLS.SIGN_EXTERNAL_PKG_WIZARD_SOURCE_DIR_INVALID; severity = IMessageProvider.ERROR; } } if (messageAux == null) { for (String folderName : path.segments()) { if (!ResourcesPlugin.getWorkspace().validateName(folderName, IResource.FOLDER).isOK()) { messageAux = CertificateManagerNLS.SIGN_EXTERNAL_PKG_WIZARD_SOURCE_DIR_INVALID; severity = IMessageProvider.ERROR; } } } if ((messageAux == null) && ((path.toFile().exists() && !path.toFile().isDirectory()))) { messageAux = CertificateManagerNLS.SIGN_EXTERNAL_PKG_WIZARD_SOURCE_DIR_NOT_DIRECTORY; severity = IMessageProvider.ERROR; } /* * Setting message */ if (messageAux == null) { messageAux = CertificateManagerNLS.SIGN_EXTERNAL_PKG_WIZARD_DESCRIPTION; severity = IMessageProvider.NONE; } setMessage(messageAux, severity); return severity == IMessageProvider.NONE; } /** * @return the path of base dir where packages are located */ public IPath getSourcePath() { return new Path(this.sourceDirText.getText()); } /** * * @return the list with selected packages */ public List<String> getSelectedPackages() { ArrayList<String> selected = new ArrayList<String>(); for (TreeItem item : this.packagesTree.getItems()) { if (item.getChecked()) { selected.add(item.getData().toString()); } } return selected; } /** * Update the page status, validating each field of this page Subclasses * that overrides createExtendedArea method should override this method too * to validate the new fields */ public void updatePageComplete() { String messageAux = null; int severity = IMessageProvider.NONE; /* * Check if there are available certificates and if selection isn't null */ if (isSourceDirValid()) { if (this.packagesTree.getItemCount() == 0) { messageAux = CertificateManagerNLS.SIGN_EXTERNAL_PKG_WIZARD_NO_AVAILABLE_PACKAGES; severity = IMessageProvider.ERROR; } } else { messageAux = getMessage(); severity = getMessageType(); } if ((messageAux == null) && (getSelectedPackages().size() == 0)) { messageAux = CertificateManagerNLS.UNSIGN_EXTERNAL_PKG_WIZARD_NO_PACKAGES_SELECTED; severity = IMessageProvider.INFORMATION; } if (messageAux == null) { messageAux = CertificateManagerNLS.UNSIGN_EXTERNAL_PKG_WIZARD_DESCRIPTION; severity = IMessageProvider.NONE; } setMessage(messageAux, severity); setPageComplete(severity == IMessageProvider.NONE); } /** * This class implements the listener of filesystem button, opening the browse * window and updating the dir text */ class BrowseButtonListener implements Listener { /* * (non-Javadoc) * * @see * org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets * .Event) */ @Override public void handleEvent(Event event) { DirectoryDialog dialog = new DirectoryDialog( RemoveExternalPackageSignaturePage.this.mainComposite.getShell()); dialog.setFilterPath(!RemoveExternalPackageSignaturePage.this.sourceDirText.getText().trim().equals("") ? RemoveExternalPackageSignaturePage.this.sourceDirText.getText() : null); String path = dialog.open(); if (path != null) { RemoveExternalPackageSignaturePage.this.sourceDirText.setText(path); populateTree(null); updatePageComplete(); } } } /** * This class implements the listener of workspace button, opening the browse * window and updating the dir text */ class WorkspaceButtonListener implements Listener { /* * (non-Javadoc) * * @see * org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets * .Event) */ @Override public void handleEvent(Event event) { ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(getShell(), new WorkbenchLabelProvider(), new WorkbenchContentProvider()); dialog.setTitle(CertificateManagerNLS.SIGN_EXTERNAL_PKG_WIZARD_WORKSPACE_SIMPLE); dialog.setMessage(CertificateManagerNLS.SIGN_EXTERNAL_PKG_WIZARD_CHOOSE); // set the workspace as the limit dialog.setInput(ResourcesPlugin.getWorkspace().getRoot()); dialog.setComparator(new ResourceComparator(ResourceComparator.NAME)); //don't display files dialog.addFilter(new ViewerFilter() { @Override public boolean select(Viewer viewer, Object parentElement, Object element) { boolean filtered = false; if (element instanceof IFile) { filtered = true; } return !filtered; } }); //user can select only one folder dialog.setValidator(new ISelectionStatusValidator() { @Override public IStatus validate(Object[] selection) { IStatus valid = new Status(IStatus.ERROR, CertificateManagerActivator.PLUGIN_ID, ""); //$NON-NLS-1$ if (selection.length == 1) { if (selection[0] instanceof Folder) { valid = new Status(IStatus.OK, CertificateManagerActivator.PLUGIN_ID, ""); //$NON-NLS-1$ } } return valid; } }); String path = null; if (dialog.open() == IDialogConstants.OK_ID) { Folder resource = (Folder) dialog.getFirstResult(); path = resource.getLocation().toString(); } if (path != null) { RemoveExternalPackageSignaturePage.this.sourceDirText.setText(path); populateTree(null); updatePageComplete(); } } } /** * Listener to validate any SourceDirectory text Change */ class SourceDirectoryTextListener implements Listener { /* * (non-Javadoc) * * @see * org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets * .Event) */ @Override public void handleEvent(Event event) { RemoveExternalPackageSignaturePage.this.packagesTree.removeAll(); if (isSourceDirValid()) { populateTree(null); } updatePageComplete(); } } /** * This class handles clicks on select all and deselect all buttons */ class SelectionButtonsListener implements Listener { /** * Check/Uncheck all items * * @param check * : true for check, false for unckeck */ private void setCheckedAll(boolean check) { for (TreeItem item : RemoveExternalPackageSignaturePage.this.packagesTree.getItems()) { item.setChecked(check); } } /* * (non-Javadoc) * * @see * org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets * .Event) */ @Override public void handleEvent(Event event) { if (event.widget == RemoveExternalPackageSignaturePage.this.selectAllButton) { setCheckedAll(true); } else if (event.widget == RemoveExternalPackageSignaturePage.this.deselectAllButton) { setCheckedAll(false); } updatePageComplete(); } } /** * Listener to update wizard status according tree selection */ class TreeSelectionListener implements Listener { /* * (non-Javadoc) * * @see * org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets * .Event) */ @Override public void handleEvent(Event event) { updatePageComplete(); } } /** * This class gets the workspace selection and makes a suitable selection to * the wizard */ class WizardSelection { private ArrayList<String> packages = null; private IPath directory = null; public WizardSelection(IStructuredSelection selection) { this.packages = new ArrayList<String>(); Iterator<?> iterator = selection.iterator(); while (iterator.hasNext()) { Object obj = iterator.next(); if (obj instanceof IFile) { IFile file = (IFile) obj; if (file.getLocation().getFileExtension().equals("apk")) //$NON-NLS-1$ { if (this.directory == null) { this.directory = file.getLocation().removeLastSegments(1); this.packages.add(file.getName()); } else { if (file.getLocation().matchingFirstSegments(this.directory) == this.directory .segmentCount()) { this.packages.add(file.getName()); } } } } else if (obj instanceof IFolder) { if (this.directory == null) { this.directory = ((IFolder) obj).getLocation(); } } } if (this.directory == null) { this.directory = new Path(""); //$NON-NLS-1$ } } /** * * @return the selected directory */ public String getSelectedDirectory() { return this.directory.toOSString(); } /** * * @return the selected packages */ public List<String> getSelectedPackages() { return this.packages; } } }