Java tutorial
/********************************************************************************* * Ephesoft is a Intelligent Document Capture and Mailroom Automation program * developed by Ephesoft, Inc. Copyright (C) 2010-2012 Ephesoft Inc. * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU Affero General Public License version 3 as published by the * Free Software Foundation with the addition of the following permission added * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK * IN WHICH THE COPYRIGHT IS OWNED BY EPHESOFT, EPHESOFT DISCLAIMS THE WARRANTY * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more * details. * * You should have received a copy of the GNU Affero General Public License along with * this program; if not, see http://www.gnu.org/licenses or write to the Free * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301 USA. * * You can contact Ephesoft, Inc. headquarters at 111 Academy Way, * Irvine, CA 92617, USA. or at email address info@ephesoft.com. * * The interactive user interfaces in modified source and object code versions * of this program must display Appropriate Legal Notices, as required under * Section 5 of the GNU Affero General Public License version 3. * * In accordance with Section 7(b) of the GNU Affero General Public License version 3, * these Appropriate Legal Notices must retain the display of the "Ephesoft" logo. * If the display of the logo is not reasonably feasible for * technical reasons, the Appropriate Legal Notices must display the words * "Powered by Ephesoft". ********************************************************************************/ package com.ephesoft.dcma.gwt.core.shared; import com.ephesoft.dcma.gwt.core.client.i18n.LocaleCommonConstants; import com.ephesoft.dcma.gwt.core.client.i18n.LocaleDictionary; import com.ephesoft.dcma.gwt.core.shared.listener.ThirdButtonListener; import com.google.gwt.core.client.GWT; import com.google.gwt.dom.client.NativeEvent; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.KeyCodes; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.uibinder.client.UiHandler; import com.google.gwt.user.client.Event.NativePreviewEvent; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.DialogBox; import com.google.gwt.user.client.ui.HTML; import com.google.gwt.user.client.ui.HTMLPanel; import com.google.gwt.user.client.ui.Widget; public class ConfirmationDialog extends DialogBox { private static final String KEYDOWN = "keydown"; interface Binder extends UiBinder<Widget, ConfirmationDialog> { } private static final Binder BINDER = GWT.create(Binder.class); public interface DialogListener { void onOkClick(); void onCancelClick(); } @UiField public Button okButton; @UiField public Button cancelButton; @UiField public Button thirdButton; @UiField protected HTML centerWidget; @UiField protected HTMLPanel panel; private DialogListener listener; private boolean performCancelOnEscape; public boolean isPerformCancelOnEscape() { return performCancelOnEscape; } public void setPerformCancelOnEscape(boolean performCancelOnEscape) { this.performCancelOnEscape = performCancelOnEscape; } public ConfirmationDialog(boolean thirdButtonVisibility) { super(); setWidget(BINDER.createAndBindUi(this)); okButton.setText(LocaleDictionary.get().getConstantValue(LocaleCommonConstants.TITLE_CONFIRMATION_OK)); cancelButton .setText(LocaleDictionary.get().getConstantValue(LocaleCommonConstants.TITLE_CONFIRMATION_CANCEL)); thirdButton .setText(LocaleDictionary.get().getConstantValue(LocaleCommonConstants.TITLE_CONFIRMATION_DISCARD)); thirdButton.setVisible(thirdButtonVisibility); setAnimationEnabled(true); setGlassEnabled(true); setWidth("100%"); setDefaultListener(); } public final void setDefaultListener() { addDialogListener(new DialogListener() { @Override public void onOkClick() { hideConfirmationDialog(); } @Override public void onCancelClick() { hideConfirmationDialog(); } }); } public ConfirmationDialog() { this(false); } private void hideConfirmationDialog() { this.hide(); } public void setMessage(String message) { centerWidget.setHTML(message); } public void setDialogTitle(String text) { setText(text); } @Override protected void onPreviewNativeEvent(NativePreviewEvent preview) { super.onPreviewNativeEvent(preview); // Use the popup's key preview hooks to close the dialog when either // enter or escape is pressed. NativeEvent evt = preview.getNativeEvent(); if (evt.getType().equals(KEYDOWN) && evt.getKeyCode() == KeyCodes.KEY_ESCAPE && performCancelOnEscape && listener != null && cancelButton.isVisible()) { listener.onCancelClick(); hide(); } } @UiHandler("okButton") protected void onOk(ClickEvent event) { listener.onOkClick(); hide(); } @UiHandler("cancelButton") protected void onCancel(ClickEvent event) { listener.onCancelClick(); hide(); } @UiHandler("thirdButton") protected void onDiscard(ClickEvent event) { if (listener instanceof ThirdButtonListener) { ((ThirdButtonListener) listener).onThirdButtonClick(); hide(); } } public final void addDialogListener(DialogListener dialogListener) { this.listener = dialogListener; } public HTMLPanel getPanel() { return panel; } }