com.google.gwt.sample.mail.client.Mail.java Source code

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Here is the source code for com.google.gwt.sample.mail.client.Mail.java

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/*
 * Copyright 2007 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.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Style.Overflow;
import com.google.gwt.resources.client.ClientBundle;
import com.google.gwt.resources.client.CssResource;
import com.google.gwt.resources.client.CssResource.NotStrict;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.DockLayoutPanel;
import com.google.gwt.user.client.ui.RootLayoutPanel;

/**
 * This application demonstrates how to construct a relatively complex user
 * interface, similar to many common email readers. It has no back-end,
 * populating its components with hard-coded data.
 */
public class Mail implements EntryPoint {

    interface Binder extends UiBinder<DockLayoutPanel, Mail> {
    }

    interface GlobalResources extends ClientBundle {
        @NotStrict
        @Source("global.css")
        CssResource css();
    }

    private static final Binder binder = GWT.create(Binder.class);

    @UiField
    TopPanel topPanel;
    @UiField
    MailList mailList;
    @UiField
    MailDetail mailDetail;
    @UiField
    Shortcuts shortcuts;

    /**
     * This method constructs the application user interface by instantiating
     * controls and hooking up event handler.
     */
    public void onModuleLoad() {
        // Inject global styles.
        GWT.<GlobalResources>create(GlobalResources.class).css().ensureInjected();

        // Create the UI defined in Mail.ui.xml.
        DockLayoutPanel outer = binder.createAndBindUi(this);

        // Get rid of scrollbars, and clear out the window's built-in margin,
        // because we want to take advantage of the entire client area.
        Window.enableScrolling(false);
        Window.setMargin("0px");

        // Special-case stuff to make topPanel overhang a bit.
        Element topElem = outer.getWidgetContainerElement(topPanel);
        topElem.getStyle().setZIndex(2);
        topElem.getStyle().setOverflow(Overflow.VISIBLE);

        // Listen for item selection, displaying the currently-selected item in
        // the detail area.
        mailList.setListener(new MailList.Listener() {
            public void onItemSelected(MailItem item) {
                mailDetail.setItem(item);
            }
        });

        // Add the outer panel to the RootLayoutPanel, so that it will be
        // displayed.
        RootLayoutPanel root = RootLayoutPanel.get();
        root.add(outer);
    }
}