root / src / gr / ebs / gss / client / ConfirmationDialog.java @ bddcde7b
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/*
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* Copyright 2009 Electronic Business Systems Ltd.
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*
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* This file is part of GSS.
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*
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* GSS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GSS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GSS. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gr.ebs.gss.client; |
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import com.google.gwt.dom.client.NativeEvent; |
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import com.google.gwt.event.dom.client.ClickEvent; |
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import com.google.gwt.event.dom.client.ClickHandler; |
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import com.google.gwt.event.dom.client.KeyCodes; |
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import com.google.gwt.user.client.Event.NativePreviewEvent; |
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import com.google.gwt.user.client.ui.AbstractImagePrototype; |
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import com.google.gwt.user.client.ui.Button; |
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import com.google.gwt.user.client.ui.DialogBox; |
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import com.google.gwt.user.client.ui.HTML; |
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import com.google.gwt.user.client.ui.HasHorizontalAlignment; |
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import com.google.gwt.user.client.ui.HorizontalPanel; |
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import com.google.gwt.user.client.ui.VerticalPanel; |
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/**
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* A dialog for requesting confirmation from the user.
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*
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* @author kman
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*/
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public abstract class ConfirmationDialog extends DialogBox { |
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/**
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* The widget's constructor.
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*
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* @param message the message to display
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* @param buttonLabel the label of the confirmation button
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*/
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public ConfirmationDialog(String message, String buttonLabel) { |
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// Set the dialog's caption.
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setText("Confirmation");
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setAnimationEnabled(true);
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// Create a VerticalPanel to contain the label and the buttons.
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VerticalPanel outer = new VerticalPanel();
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HorizontalPanel buttons = new HorizontalPanel();
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HTML text = new HTML("<table><tr><td rowspan='2'>" + |
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AbstractImagePrototype.create(MessagePanel.images.warn()).getHTML() + |
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"</td><td>" + message + "</td></tr></table>"); |
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text.setStyleName("gss-warnMessage");
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outer.add(text); |
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// Create the 'Update' button, along with a listener that hides the
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// dialog when the button is clicked and renames the file.
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Button ok = new Button(buttonLabel, new ClickHandler() { |
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@Override
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public void onClick(ClickEvent event) { |
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confirm(); |
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hide(); |
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} |
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}); |
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buttons.add(ok); |
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buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER); |
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// Create the 'Cancel' button, along with a listener that hides the
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// dialog when the button is clicked.
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Button cancel = new Button("Cancel", new ClickHandler() { |
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@Override
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public void onClick(ClickEvent event) { |
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hide(); |
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cancel(); |
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} |
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}); |
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buttons.add(cancel); |
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buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER); |
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buttons.setSpacing(8);
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buttons.setStyleName("gss-warnMessage");
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outer.setStyleName("gss-warnMessage");
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outer.add(buttons); |
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outer.setCellHorizontalAlignment(text, HasHorizontalAlignment.ALIGN_CENTER); |
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outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER); |
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setWidget(outer); |
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} |
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@Override
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protected void onPreviewNativeEvent(NativePreviewEvent preview) { |
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super.onPreviewNativeEvent(preview);
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NativeEvent evt = preview.getNativeEvent(); |
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if (evt.getType().equals("keydown")) |
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// Use the popup's key preview hooks to close the dialog when either
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// enter or escape is pressed.
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switch (evt.getKeyCode()) {
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case KeyCodes.KEY_ENTER:
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hide(); |
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confirm(); |
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break;
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case KeyCodes.KEY_ESCAPE:
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hide(); |
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cancel(); |
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break;
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} |
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} |
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public abstract void confirm(); |
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public abstract void cancel(); |
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} |