Java tutorial
/* * Copyright 2008 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.gadgets.sample.basicgadgetads.client; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.gadgets.client.AdsFeature; import com.google.gwt.gadgets.client.AdsUserPreferences; import com.google.gwt.gadgets.client.GadgetAds; import com.google.gwt.gadgets.client.Gadget.AllowHtmlQuirksMode; import com.google.gwt.gadgets.client.Gadget.InjectContent; import com.google.gwt.gadgets.client.Gadget.ModulePrefs; import com.google.gwt.gadgets.client.Gadget.UseLongManifestName; import com.google.gwt.gadgets.client.ui.GadgetImage; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.HasHorizontalAlignment; import com.google.gwt.user.client.ui.HasVerticalAlignment; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.RootPanel; import com.google.gwt.user.client.ui.VerticalPanel; /** * Basic Gadget Ads. */ @ModulePrefs(// title = "Basic Gadget Ads using GWT!", // author = "Nicolas Garnier", // author_email = "nivco+gadgetads@google.com", // author_affiliation = "Google Inc.", // // The Gadget Ad size must be defined and must match a supported Google // AdSense Ad Format. height = GadgetAds.SupportedGoogleAdSenseAdFormats.SKYSCRAPER_HEIGHT, // width = GadgetAds.SupportedGoogleAdSenseAdFormats.SKYSCRAPER_WIDTH) // Adding a dummy call to an Ad interaction JavaScript function in the Gadget // Spec because the Gadget Ads Validator doesn't inspect the external // JavaScript files. @InjectContent(files = { "dummyAdsInteraction.xml" }) // Create a short manifest name (instead of prepending the package prefix) @UseLongManifestName(false) @AllowHtmlQuirksMode(false) public class BasicGadgetAds extends GadgetAds<AdsUserPreferences> { // The AdsFeature is required in Gadget Ads private AdsFeature adsFeature; public void initializeFeature(AdsFeature adsFeature) { this.adsFeature = adsFeature; } @Override protected void init(AdsUserPreferences preferences) { // Creating the Panel VerticalPanel vp = new VerticalPanel(); RootPanel.get().add(vp); // Setting style and alignment vp.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE); vp.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER); // Using GadgetImage instead of Image will cache your images on the // Gadget's Container server. It is a Gadget Ads requirement that all // embedded assets must be cached. vp.add(new GadgetImage("http://code.google.com/webtoolkit/images/gwt-logo.png")); // Adding a waiting message to the RootPanel Label disclaimer = new Label("Use GWT for your Gadget Ads!"); vp.add(disclaimer); // Another Logo vp.add(new GadgetImage("http://code.google.com/webtoolkit/images/gwt-logo.png")); // Adding the button to go to the GWT website Button button = new Button("Visit the GWT Website NOW!!"); vp.add(button); // When clicking the button, we are redirected to the GWT website. // We use the AdsFeature.clickDestinationUrl() which will redirect to the // URL and report the clickthrough hit. // It is a GadgetAds requirement to use some AdsFeature.reportInteraction() // or AdsFeature.clickDestinationUrl() button.addClickHandler(new ClickHandler() { public void onClick(ClickEvent event) { adsFeature.clickDestinationUrl("http://code.google.com/webtoolkit/"); } }); // Another Logo vp.add(new GadgetImage("http://code.google.com/webtoolkit/images/gwt-logo.png")); // Some styling vp.setHeight("100%"); vp.setWidth("100%"); button.setWidth("80%"); button.getElement().getStyle().setProperty("cursor", "pointer"); button.getElement().getStyle().setPropertyPx("fontSize", 15); button.getElement().getStyle().setProperty("fontWeight", "bold"); button.getElement().getStyle().setPropertyPx("padding", 5); } }