root / web_client / src / gr / grnet / pithos / web / client / ConfirmationDialog.java @ 58777026
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/*
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* Copyright 2011 GRNET S.A. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and
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* documentation are those of the authors and should not be
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* interpreted as representing official policies, either expressed
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* or implied, of GRNET S.A.
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*/
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package gr.grnet.pithos.web.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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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("pithos-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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ok.getElement().setId("confirmation.ok");
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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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cancel.getElement().setId("confirmation.cancel");
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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("pithos-warnMessage");
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outer.setStyleName("pithos-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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} |