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.motorola.studio.android.localization.translators.preferences.ui; import java.net.MalformedURLException; import java.net.URL; import org.eclipse.core.runtime.preferences.IEclipsePreferences; import org.eclipse.core.runtime.preferences.InstanceScope; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.preference.PreferencePage; 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.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Link; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPreferencePage; import org.eclipse.ui.PartInitException; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.browser.IWebBrowser; import org.eclipse.ui.browser.IWorkbenchBrowserSupport; import org.osgi.service.prefs.BackingStoreException; import com.motorola.studio.android.common.log.StudioLogger; import com.motorola.studio.android.localization.translators.GoogleTranslatorConstants; import com.motorola.studio.android.localization.translators.TranslationPlugin; import com.motorola.studio.android.localization.translators.i18n.TranslateNLS; public class TranslationPreferencePage extends PreferencePage implements IWorkbenchPreferencePage { private final String GOOGLE_APIS_CONSOLE_LINK = "http://code.google.com/apis/console/"; //$NON-NLS-1$ private Text apiKeyText; private String apiKeyValue; public void init(IWorkbench workbench) { noDefaultAndApplyButton(); } @Override public boolean performOk() { InstanceScope scope = (InstanceScope) InstanceScope.INSTANCE; IEclipsePreferences prefs = scope.getNode(TranslationPlugin.PLUGIN_ID); if (apiKeyValue.trim().length() == 0) { prefs.remove(GoogleTranslatorConstants.API_KEY_VALUE_PREFERENCE); } else { prefs.put(GoogleTranslatorConstants.API_KEY_VALUE_PREFERENCE, apiKeyValue.trim()); } try { prefs.flush(); } catch (BackingStoreException e) { //do nothing } return super.performOk(); } @Override protected Control createContents(Composite parent) { Composite entryTable = new Composite(parent, SWT.NULL); GridData data = new GridData(SWT.FILL, SWT.TOP, true, false); entryTable.setLayoutData(data); GridLayout layout = new GridLayout(); entryTable.setLayout(layout); layout = new GridLayout(2, false); layout = new GridLayout(2, false); Group translatorAPIGroup = new Group(entryTable, SWT.NONE); translatorAPIGroup.setLayout(layout); translatorAPIGroup.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false)); translatorAPIGroup.setText(TranslateNLS.AndroidPreferencePage_googleApiKey_GroupLabel); Link noteLabel = new Link(translatorAPIGroup, SWT.WRAP); noteLabel.setText( TranslateNLS.bind(TranslateNLS.AndroidPreferencePage_googleApiKey_Note, GOOGLE_APIS_CONSOLE_LINK)); data = new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1); data.widthHint = 450; noteLabel.setLayoutData(data); noteLabel.addSelectionListener(new SelectionAdapter() { /* (non-Javadoc) * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent) */ @Override public void widgetSelected(SelectionEvent e) { IWorkbenchBrowserSupport browserSupport = PlatformUI.getWorkbench().getBrowserSupport(); /* * open the browser */ IWebBrowser browser; try { browser = browserSupport.createBrowser(IWorkbenchBrowserSupport.LOCATION_BAR | IWorkbenchBrowserSupport.NAVIGATION_BAR | IWorkbenchBrowserSupport.AS_EXTERNAL, "MOTODEV", null, null); //$NON-NLS-1$ browser.openURL(new URL(GOOGLE_APIS_CONSOLE_LINK)); } catch (PartInitException ex) { StudioLogger.error("Error opening the Google APIs Console link: " //$NON-NLS-1$ + ex.getMessage()); } catch (MalformedURLException ex) { StudioLogger.error("Error opening the Google APIs Console link: " //$NON-NLS-1$ + ex.getMessage()); } } }); Label apiKeyLabel = new Label(translatorAPIGroup, SWT.NONE); apiKeyLabel.setText(TranslateNLS.AndroidPreferencePage_googleApiKey_Label); data = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1); apiKeyLabel.setLayoutData(data); apiKeyText = new Text(translatorAPIGroup, SWT.BORDER); apiKeyValue = getApiKey(); apiKeyText.setText(apiKeyValue); apiKeyText.setToolTipText(TranslateNLS.AndroidPreferencePage_googleApiKey_Tooltip); data = new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1); apiKeyText.setLayoutData(data); apiKeyText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { apiKeyValue = apiKeyText.getText(); } }); return entryTable; } /** * get the apikey * @return the apikey or an empty string for the default one */ private static String getApiKey() { String apiKey = ""; //$NON-NLS-1$ IPreferenceStore prefStore = TranslationPlugin.getDefault().getPreferenceStore(); if (!prefStore.isDefault(GoogleTranslatorConstants.API_KEY_VALUE_PREFERENCE)) { apiKey = prefStore.getString(GoogleTranslatorConstants.API_KEY_VALUE_PREFERENCE); if (apiKey == null) { apiKey = ""; //$NON-NLS-1$ } } return apiKey; } }