Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2010 IBM Corporation and others. * 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: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.team.internal.ui.wizards; import java.io.File; import java.lang.reflect.InvocationTargetException; import java.net.MalformedURLException; import java.net.URL; import org.eclipse.compare.internal.Utilities; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.OperationCanceledException; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.swt.SWT; import org.eclipse.swt.dnd.Clipboard; import org.eclipse.swt.dnd.TextTransfer; 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.*; import org.eclipse.team.internal.ui.*; import org.eclipse.ui.IWorkingSet; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.dialogs.WorkingSetGroup; public class ImportProjectSetMainPage extends TeamWizardPage { Combo fileCombo; String file = ""; //$NON-NLS-1$ Button browseButton; String urlString = ""; //$NON-NLS-1$ Combo urlCombo; // input type radios private Button fileInputButton; private Button urlInputButton; // input type public static final int InputType_file = 0; public static final int InputType_URL = 1; private int inputType = InputType_file; private boolean runInBackground = isRunInBackgroundPreferenceOn(); // a wizard shouldn't be in an error state until the state has been modified by the user private int messageType = NONE; private WorkingSetGroup workingSetGroup; private PsfFilenameStore psfFilenameStore = PsfFilenameStore.getInstance(); private PsfUrlStore psfUrlStore = PsfUrlStore.getInstance(); public ImportProjectSetMainPage(String pageName, String title, ImageDescriptor titleImage) { super(pageName, title, titleImage); setDescription(TeamUIMessages.ImportProjectSetMainPage_description); } private void setInputType(int inputTypeSelected) { this.inputType = inputTypeSelected; // reset the message type and give the user fresh chance to input // correct data messageType = NONE; // update controls fileInputButton.setSelection(inputType == InputType_file); fileCombo.setEnabled(inputType == InputType_file); browseButton.setEnabled(inputType == InputType_file); urlInputButton.setSelection(inputType == InputType_URL); urlCombo.setEnabled(inputType == InputType_URL); // validate field if (inputType == InputType_file) updateFileEnablement(); if (inputType == InputType_URL) updateUrlEnablement(); } /* * @see IDialogPage#createControl(Composite) */ public void createControl(Composite parent) { Composite composite = createComposite(parent, 1); initializeDialogUnits(composite); // set F1 help PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IHelpContextIds.IMPORT_PROJECT_SET_PAGE); Composite inner = new Composite(composite, SWT.NULL); inner.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); GridLayout layout = new GridLayout(); layout.numColumns = 3; layout.marginHeight = 0; layout.marginWidth = 0; inner.setLayout(layout); fileInputButton = new Button(inner, SWT.RADIO); fileInputButton.setText(TeamUIMessages.ImportProjectSetMainPage_Project_Set_File); fileInputButton.setEnabled(true); fileInputButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { setInputType(InputType_file); } }); fileCombo = createDropDownCombo(inner); file = psfFilenameStore.getSuggestedDefault(); fileCombo.setItems(psfFilenameStore.getHistory()); fileCombo.setText(file); fileCombo.addListener(SWT.Modify, new Listener() { public void handleEvent(Event event) { file = fileCombo.getText(); updateFileEnablement(); } }); browseButton = new Button(inner, SWT.PUSH); browseButton.setText(TeamUIMessages.ImportProjectSetMainPage_Browse_3); urlInputButton = new Button(inner, SWT.RADIO); urlInputButton.setText(TeamUIMessages.ImportProjectSetMainPage_Project_Set_Url); urlInputButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { setInputType(InputType_URL); } }); urlCombo = createDropDownCombo(inner); urlString = psfUrlStore.getSuggestedDefault(); urlCombo.setItems(psfUrlStore.getHistory()); urlCombo.setText(urlString); GridData gd = new GridData(GridData.FILL_HORIZONTAL); gd.horizontalSpan = 2; urlCombo.setLayoutData(gd); urlCombo.addListener(SWT.Modify, new Listener() { public void handleEvent(Event event) { urlString = urlCombo.getText(); updateUrlEnablement(); } }); GridData data = new GridData(); data.horizontalAlignment = GridData.FILL; int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH); data.widthHint = Math.max(widthHint, browseButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x); browseButton.setLayoutData(data); browseButton.addListener(SWT.Selection, new Listener() { public void handleEvent(Event event) { FileDialog d = new FileDialog(getShell()); d.setFilterExtensions(new String[] { "*.psf", "*" }); //$NON-NLS-1$ //$NON-NLS-2$ d.setFilterNames(new String[] { TeamUIMessages.ImportProjectSetMainPage_Project_Set_Files_2, TeamUIMessages.ImportProjectSetMainPage_allFiles }); // String fileName = getFileName(); if (fileName != null && fileName.length() > 0) { int separator = fileName.lastIndexOf(System.getProperty("file.separator").charAt(0)); //$NON-NLS-1$ if (separator != -1) { fileName = fileName.substring(0, separator); } } else { fileName = ResourcesPlugin.getWorkspace().getRoot().getLocation().toString(); } d.setFilterPath(fileName); String f = d.open(); if (f != null) { fileCombo.setText(f); file = f; } } }); addWorkingSetSection(composite); Button runInBackgroundCheckbox = SWTUtils.createCheckBox(composite, TeamUIMessages.ImportProjectSetMainPage_runInBackground, 3); runInBackgroundCheckbox.setSelection(isRunInBackgroundPreferenceOn()); runInBackgroundCheckbox.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { runInBackground = !runInBackground; } }); setControl(composite); setDefaultInputType(); Dialog.applyDialogFont(parent); } private void setDefaultInputType() { // check for clipboard contents Control c = getControl(); if (c != null) { Clipboard clipboard = new Clipboard(c.getDisplay()); Object o = clipboard.getContents(TextTransfer.getInstance()); clipboard.dispose(); if (o instanceof String) { try { URL url = new URL((String) o); if (url != null) { setInputType(InputType_URL); urlCombo.setText((String) o); return; } } catch (MalformedURLException e) { // ignore, it's not and URL } } } setInputType(InputType_file); } private void addWorkingSetSection(Composite composite) { workingSetGroup = new WorkingSetGroup(composite, null, new String[] { "org.eclipse.ui.resourceWorkingSetPage", //$NON-NLS-1$ "org.eclipse.jdt.ui.JavaWorkingSetPage" /* JavaWorkingSetUpdater.ID */ }); //$NON-NLS-1$ } private void updateUrlEnablement() { boolean complete = false; setMessage(null); setErrorMessage(null); if (urlString.length() == 0) { setMessage(TeamUIMessages.ImportProjectSetMainPage_specifyURL, messageType); complete = false; } else { try { new URL(urlString); // the URL is correct, we can clear the error message complete = true; } catch (MalformedURLException e) { messageType = ERROR; setMessage(TeamUIMessages.ImportProjectSetDialog_malformed_url, messageType); complete = false; } } if (complete) { setErrorMessage(null); setDescription(TeamUIMessages.ImportProjectSetMainPage_description); } setPageComplete(complete); } private void updateFileEnablement() { boolean complete = false; setMessage(null); setErrorMessage(null); if (file.length() == 0) { setMessage(TeamUIMessages.ImportProjectSetMainPage_specifyFile, messageType); setPageComplete(false); return; } else { // See if the file exists File f = new File(file); if (!f.exists()) { messageType = ERROR; setMessage(TeamUIMessages.ImportProjectSetMainPage_The_specified_file_does_not_exist_4, messageType); setPageComplete(false); return; } else if (f.isDirectory()) { messageType = ERROR; setMessage(TeamUIMessages.ImportProjectSetMainPage_You_have_specified_a_folder_5, messageType); setPageComplete(false); return; } else if (!ProjectSetImporter.isValidProjectSetFile(file)) { messageType = ERROR; setMessage(TeamUIMessages.ImportProjectSetMainPage_projectSetFileInvalid, messageType); setPageComplete(false); return; } complete = true; } if (complete) { setErrorMessage(null); setDescription(TeamUIMessages.ImportProjectSetMainPage_description); } setPageComplete(complete); } public String getFileName() { return file; } public String getUrl() { return urlString; } public void setVisible(boolean visible) { super.setVisible(visible); if (visible) { fileCombo.setFocus(); } } /** * Return the working sets selected on the page or an empty array if none * were selected. * * @return the selected working sets or an empty array */ public IWorkingSet[] getWorkingSets() { return workingSetGroup.getSelectedWorkingSets(); } private static boolean isRunInBackgroundPreferenceOn() { return TeamUIPlugin.getPlugin().getPreferenceStore().getBoolean(IPreferenceIds.RUN_IMPORT_IN_BACKGROUND); } public boolean isRunInBackgroundOn() { return runInBackground; } public int getInputType() { return inputType; } public String getURLContents() { try { PsfUrlStore.getInstance().remember(urlString); String urlContent = Utilities.getURLContents(new URL(urlString), getContainer()); if (ProjectSetImporter.isValidProjectSetString(urlContent)) { return urlContent; } else { messageType = ERROR; setMessage(TeamUIMessages.ImportProjectSetMainPage_projectSetFileInvalid, messageType); setPageComplete(false); return null; } } catch (OperationCanceledException e) { // ignore } catch (InterruptedException e) { // ignore } catch (InvocationTargetException e) { messageType = ERROR; setMessage(TeamUIMessages.ImportProjectSetMainPage_The_given_URL_cannot_be_loaded, messageType); setPageComplete(false); } catch (MalformedURLException e) { // ignore as we tested it with modify listener on combo } return null; } }