| /* |
| * Copyright 2009 Google Inc. |
| * |
| * 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.google.gwt.sample.mail.client; |
| |
| import com.google.gwt.core.client.GWT; |
| import com.google.gwt.dom.client.Element; |
| import com.google.gwt.dom.client.Style.Visibility; |
| import com.google.gwt.event.dom.client.ClickEvent; |
| 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.uibinder.client.UiTemplate; |
| import com.google.gwt.user.client.ui.Anchor; |
| import com.google.gwt.user.client.ui.Composite; |
| import com.google.gwt.user.client.ui.Widget; |
| |
| /** |
| * A simple widget representing prev/next page navigation. |
| */ |
| class NavBar extends Composite { |
| @UiTemplate("NavBar.ui.xml") |
| interface Binder extends UiBinder<Widget, NavBar> { } |
| private static final Binder binder = GWT.create(Binder.class); |
| |
| @UiField Element countLabel; |
| @UiField Anchor newerButton; |
| @UiField Anchor olderButton; |
| |
| private final MailList outer; |
| |
| public NavBar(MailList outer) { |
| initWidget(binder.createAndBindUi(this)); |
| this.outer = outer; |
| } |
| |
| public void update(int startIndex, int count, int max) { |
| setVisibility(newerButton, startIndex != 0); |
| setVisibility(olderButton, |
| startIndex + MailList.VISIBLE_EMAIL_COUNT < count); |
| countLabel.setInnerText("" + (startIndex + 1) + " - " + max + " of " |
| + count); |
| } |
| |
| @UiHandler("newerButton") |
| void onNewerClicked(ClickEvent event) { |
| outer.newer(); |
| } |
| |
| @UiHandler("olderButton") |
| void onOlderClicked(ClickEvent event) { |
| outer.older(); |
| } |
| |
| private void setVisibility(Widget widget, boolean visible) { |
| widget.getElement().getStyle().setVisibility( |
| visible ? Visibility.VISIBLE : Visibility.HIDDEN); |
| } |
| } |