Java 类com.vaadin.server.BootstrapPageResponse 实例源码

@Override
public void modifyBootstrapPage(BootstrapPageResponse response) {
    Element head = response.getDocument().getElementsByTag("head").get(0);

    String jqueryUrl = String.format("VAADIN/webjars/%s", webConfig.getWebJarJQueryPath());

    includeScript(jqueryUrl, response, head);

    int customDeviceWidthForViewport = webConfig.getCustomDeviceWidthForViewport();
    if (customDeviceWidthForViewport > 0) {
        includeMetaViewport("width=" + customDeviceWidthForViewport +
                ", initial-scale=" + webConfig.getPageInitialScale(), response, head);
    } else if (webConfig.getUseDeviceWidthForViewport()) {
        includeMetaViewport("width=device-width" +
                ", initial-scale=" + webConfig.getPageInitialScale(), response, head);
    }
}

@Override
public void modifyBootstrapPage(BootstrapPageResponse response) {
    Document document = response.getDocument();
    Element head = document.getElementsByTag("head").get(0);

    for (ApplicationIcon icon : applicationIcon) {
        // <link rel="apple-touch-icon" sizes="114x114"
        // href="touch-icon-iphone4.png" />
        Element iconEl = document.createElement("link");
        iconEl.attr("rel", "apple-touch-icon");
        String sizes = icon.getSizes();
        if (sizes != null) {
            iconEl.attr("sizes", sizes);
        }
        iconEl.attr("href", icon.getHref());
        head.appendChild(iconEl);
    }
}

@Override
public void modifyBootstrapPage(BootstrapPageResponse response) {
    super.modifyBootstrapPage(response);

    Element head = response.getDocument().getElementsByTag("head").get(0);
    includeMetaViewport("width=device-width, initial-scale=0.8", response, head);
}

@Override
public void modifyBootstrapPage(BootstrapPageResponse response) {
    Element head = response.getDocument().getElementsByTag("head")
            .get(0);
    Element link = response.getDocument().createElement("link");
    link.attr("rel", "stylesheet");
    link.attr("type", "text/css");
    link.attr("href",
            "http://fonts.googleapis.com/css?family=Permanent+Marker");
    head.appendChild(link);
}

/**
 * Creates a new instance of TouchKitSettings and binds it to the given
 * {@link VaadinService}.
 *
 * @param vaadinService
 *            the vaadin service to which the new instance should be bound.
 */
public TouchKitSettings(VaadinService vaadinService) {
    setViewPortSettings(new ViewPortSettings());

    /*
     * WP8 needs device-width and maximum scale to work like ios (with
     * default settings). Without these custom values pixel size is huge in
     * landscape mode. With these values iphone5 goes to letter box when on
     * home screen.
     *
     * @viewport css rule will replace meta tags in the future and there is
     * a prefixed version in MobileIE10, but it is buggy (landscape mode
     * don't change "device-width").
     */
    final ViewPortSettings ieViewPortSettings = new ViewPortSettings();
    ieViewPortSettings.setViewPortWidth("device-width");
    ieViewPortSettings.setViewPortMaximumScale(1f);

    addViewPortSettings(new SettingSelector<ViewPortSettings>() {

        @Override
        public ViewPortSettings select(BootstrapPageResponse response) {
            String ua = response.getRequest().getHeader("User-Agent");
            if (ua != null && ua.contains("IEMobile")) {
                return ieViewPortSettings;
            }
            return null;
        }

    });
    setWebAppSettings(new WebAppSettings());
    setApplicationIcons(new ApplicationIcons());
    setApplicationCacheSettings(new ApplicationCacheSettings());
    vaadinService.addSessionInitListener(this);
    vaadinService.setSystemMessagesProvider(this);
}

/**
 * Selects viewport settings to be used for given bootstrap
 * request/response.
 *
 * @param response
 * @return The {@link ViewPortSettings}
 */
private ViewPortSettings selectViewPortSettings(
        BootstrapPageResponse response) {
    for (SettingSelector<ViewPortSettings> s : selectorBasedViewPortSettings) {
        ViewPortSettings selected = s.select(response);
        if (selected != null) {
            return selected;
        }
    }
    return defaultViewPortSettings;
}

@Override
public void modifyBootstrapPage(BootstrapPageResponse response) {

    ViewPortSettings viewPortSettings2 = selectViewPortSettings(response);
    if (viewPortSettings2 != null) {
        viewPortSettings2.modifyBootstrapPage(response);
    }
    if (getWebAppSettings() != null) {
        getWebAppSettings().modifyBootstrapPage(response);
    }
    if (getApplicationIcons() != null) {
        getApplicationIcons().modifyBootstrapPage(response);
    }
    if (getApplicationCacheSettings() != null) {
        OfflineModeEnabled offline = null;
        CacheManifestEnabled manifest = null;

        Class<?> clazz = response.getUiClass();
        if (clazz != null) {
            offline = clazz.getAnnotation(OfflineModeEnabled.class);
            manifest = clazz.getAnnotation(CacheManifestEnabled.class);
        }
        if (response.getSession().getService() instanceof VaadinServletService) {
            clazz = ((VaadinServletService) response.getSession()
                    .getService()).getServlet().getClass();
            if (offline == null) {
                offline = clazz.getAnnotation(OfflineModeEnabled.class);
            }
            if (manifest == null) {
                manifest = clazz.getAnnotation(CacheManifestEnabled.class);
            }
        }

        getApplicationCacheSettings().setCacheManifestEnabled(
                manifest == null || manifest.value());
        getApplicationCacheSettings().setOfflineModeEnabled(
                offline == null || offline.value());
        getApplicationCacheSettings().modifyBootstrapPage(response);
    }
}

/**
 * Generates the manifest file name for the given page response
 *
 * @param response
 *            Page response where the manifest will be added.
 * @return The manifest file name, eg. "safari.manifest".
 */
protected String generateManifestFileName(BootstrapPageResponse response) {
    String userAgent = response.getRequest().getHeader("user-agent");
    if (userAgent == null) {
        // Should not happen in "normal" cases but the header is optional
        return "safari.manifest";
    }
    VBrowserDetails browser = new VBrowserDetails(userAgent);

    if (browser.isFirefox()) {
        return "gecko1_8.manifest";
    } else if (browser.isChrome()) {
        return "safari.manifest";
    } else if (browser.isIE()) {
        if (browser.getBrowserMajorVersion() > 10) {
            return "gecko1_8.manifest";
        } else {
            return "ie10.manifest";
        }
    } else if (browser.isAndroid()) {
        int major = browser.getOperatingSystemMajorVersion();
        int minor = browser.getOperatingSystemMinorVersion();
        if (major < 4 || (major == 4 && minor < 4)) {
            return "aosp.manifest";
        } else {
            return "safari.manifest";
        }
    } else {
        return "safari.manifest";
    }
}

@Override
public void modifyBootstrapPage(BootstrapPageResponse response) {

    Document document = response.getDocument();

    Element html = document.getElementsByTag("html").get(0);
    Element head = document.getElementsByTag("head").get(0);

    DocumentType doctype = (DocumentType) html.previousSibling();
    DocumentType html5doc = new DocumentType("html", "", "", "");
    doctype.replaceWith(html5doc);

    Element element = document.createElement("meta");
    element.attr("name", "viewport");
    StringBuilder content = new StringBuilder();
    boolean open = false;
    open = addViewPortRule(content, open, "width", getViewPortWidth());
    if (!isViewPortUserScalable()) {
        open = addViewPortRule(content, open, "user-scalable", "no");
    }
    open = addViewPortRule(content, open, "initial-scale",
            getViewPortInitialScale());
    open = addViewPortRule(content, open, "maximum-scale",
            getViewPortMaximumScale());
    open = addViewPortRule(content, open, "minimum-scale",
            getViewPortMaximumScale());
    element.attr("content", content.toString());
    head.appendChild(element);

    // meta tag to disable gray tap highlights in WP8 (note, for some reason
    // these do not appear in W8, not even RT)
    // <meta name="msapplication-tap-highlight" content="no" />
    element = document.createElement("meta");
    element.attr("name", "msapplication-tap-highlight");
    element.attr("content", "no");
    head.appendChild(element);

}

@Override
public void serviceInit(ServiceInitEvent event) {
    ValoDependencyFilter dependencyFilter = new ValoDependencyFilter();
    if (dependencyFilter.hasValoWebJar()) {
        event.addDependencyFilter(dependencyFilter);
    }

    VaadinServletService service = (VaadinServletService) event.getSource();

    WebApplicationContext applicationContext = WebApplicationContextUtils
            .findWebApplicationContext(
                    service.getServlet().getServletContext());

    String apiKey = applicationContext.getEnvironment()
            .getProperty("map.apikey");
    if (apiKey == null) {
        throw new RuntimeException(
                "Configure a map.apikey in your application.properties");
    }

    event.addBootstrapListener(new BootstrapListener() {
        @Override
        public void modifyBootstrapPage(BootstrapPageResponse response) {
            Element head = response.getDocument().head();
            head.appendElement("meta").attr("name", "viewport")
                    .attr("content", "width=device-width, initial-scale=1");

            // Flow sets element properties too late for google-map to get
            // the right API key. As a temporary workaround, we put our key
            // in the map's prototype instead.
            head.appendElement("script").html("window.mapApiKey = '"
                    + apiKey + "';\n"
                    + "customElements.whenDefined('google-map').then(function() {customElements.get('google-map').prototype.apiKey = window.mapApiKey})");

            head.appendElement("link").attr("rel", "import").attr("href",
                    response.getUriResolver().resolveVaadinUri(
                            "frontend://bower_components/vaadin-valo-theme/typography.html"));
            head.appendElement("link").attr("rel", "import").attr("href",
                    response.getUriResolver().resolveVaadinUri(
                            "frontend://bower_components/vaadin-valo-theme/color.html"));

            head.appendElement("custom-style").appendElement("style")
                    .attr("include", "valo-typography valo-colors");
        }
    });
}

protected void includeScript(String src, BootstrapPageResponse response, Element head) {
    Element script = response.getDocument().createElement("script");
    script.attr("src", src);
    head.appendChild(script);
}

protected void includeMetaViewport(String content, BootstrapPageResponse response, Element head) {
    Element meta = response.getDocument().createElement("meta");
    meta.attr("name", "viewport");
    meta.attr("content", content);
    head.appendChild(meta);
}

protected void includeMetaViewport(String content, BootstrapPageResponse response, Element head) {
    Element meta = response.getDocument().createElement("meta");
    meta.attr("name", "viewport");
    meta.attr("content", content);
    head.appendChild(meta);
}

@Override
public void modifyBootstrapPage(BootstrapPageResponse response)
{
    Element head = response.getDocument().head();
    // head = new Element(Tag.valueOf("div"), "");

    // Favicons and links generated by
    // http://realfavicongenerator.net/
    //

    addLink(head, "rel=shortcut icon", "href=/images/favicon.ico");
    addLink(head, "rel=icon", "type=image/png", "href=/images/favicon-32x32.png", "sizes=32x32");
    addLink(head, "rel=icon", "type=image/png", "href=/images/favicon-96x96.png", "sizes=96x96");
    addLink(head, "rel=icon", "type=image/png", "href=/images/favicon-16x16.png", "sizes=16x16");

    // Apple icons
    // addLink(head, "apple-touch-icon", "57x57",
    // "/images/apple-touch-icon-57x57.png");
    // addLink(head, "apple-touch-icon", "60x60",
    // "/images/apple-touch-icon-60x60.png");
    // addLink(head, "apple-touch-icon", "72x72",
    // "/images/apple-touch-icon-72x72.png");
    // addLink(head, "apple-touch-icon", "76x76",
    // "/images/apple-touch-icon-76x76.png");
    // addLink(head, "apple-touch-icon", "114x114",
    // "/images/apple-touch-icon-114x114.png");
    // addLink(head, "apple-touch-icon", "120x120",
    // "/images/apple-touch-icon-120x120.png");
    // addLink(head, "apple-touch-icon", "144x144",
    // "/images/apple-touch-icon-144x144.png");
    // addLink(head, "apple-touch-icon", "152x152",
    // "/images/apple-touch-icon-152x152.png");
    // addMeta(head, "name=theme-color", "content=#ffffff");

    // Android
    // addLink(head, "rel=manifest", "href=/images/manifest.json");

    // Safari
    // addLink(head, "rel=mask-icon",
    // "href=/images/safari-pinned-tab.svg", "color=#5bbad5");

    // MS
    // addMeta(head, "name=msapplication-TileColor", "content=#da532c");
    // addMeta(head, "name=msapplication-TileImage",
    // "content=/images/mstile-144x144.png");
    // addMeta(head, "name=msapplication-config",
    // "content=/images/browserconfig.xml");

}

@Override
public void modifyBootstrapPage(BootstrapPageResponse response) {
    Document document = response.getDocument();

    Element head = document.getElementsByTag("head").get(0);

    Element element;

    if (isWebAppCapable()) {
        element = document.createElement("meta");
        element.attr("name", "apple-mobile-web-app-capable");
        element.attr("content", "yes");
        head.appendChild(element);
    }

    if (getStatusBarStyle() != null) {
        element = document.createElement("meta");
        element.attr("name", "apple-mobile-web-app-status-bar-style");
        element.attr("content", getStatusBarStyle());
        head.appendChild(element);
    }

    if (getStartupImage() != null) {
        element = document.createElement("link");
        element.attr("rel", "apple-touch-startup-image");
        element.attr("href", getStartupImage());
        head.appendChild(element);
    }

    /*
     * Ensure window has "stable name", in case PreserveOnRefresh is used.
     * This is to fool vaadinBootstrap.js so that for example applications
     * used as ios "home screen webapps", can preserve their state among app
     * switches, like following links (with browser) and then returning back
     * to app.
     */
    if (response.getUiClass().getAnnotation(PreserveOnRefresh.class) != null) {
        element = document.createElement("script");
        element.attr("type", "text/javascript");
        element.appendText("\nwindow.name = '"
                + response.getUiClass().hashCode() + "';\n");
        head.appendChild(element);
    }
}

@Override
public void modifyBootstrapPage(BootstrapPageResponse response) {
    Document document = response.getDocument();

    // Add the widgetsetUrl parameter to the bootstrap parameters.
    // This is overridden to avoid adding the naive random query
    // parameter (used by core to avoid caching of js file).

    final VaadinService service = response.getSession().getService();
    final VaadinRequest request = response.getRequest();
    final String staticFilePath = service
            .getStaticFileLocation(request);
    // VAADIN folder location
    final String vaadinDir = staticFilePath + "/VAADIN/";
    // Figure out widgetset
    final UICreateEvent event = new UICreateEvent(request,
            response.getUiClass());
    String widgetset = response.getUIProvider().getWidgetset(event);
    if (widgetset == null) {
        widgetset = request.getService()
                .getConfiguredWidgetset(request);
    }
    // Url for the widgetset
    final String widgetsetUrl = String.format(
            "%swidgetsets/%s/%s.nocache.js", vaadinDir, widgetset,
            widgetset);

    // Update the bootstrap page
    Element scriptTag = document.getElementsByTag("script").last();
    String script = scriptTag.html();
    scriptTag.html("");

    script = script.replace("});", ",\"widgetsetUrl\":\"" + widgetsetUrl
            + "\",\"offlineEnabled\":" + isOfflineModeEnabled() + "});");

    scriptTag.appendChild(new DataNode(script, scriptTag.baseUri()));

    if (isCacheManifestEnabled()) {
        // Add cache manifest attribute to html tag
        document.getElementsByTag("html").attr(
                "manifest",
                vaadinDir + "widgetsets/" + widgetset + "/"
                        + generateManifestFileName(response));
    }
}

/**
 * @param response
 * @return used settings or null if settings shouldn't be used for this
 *         request.
 */
T select(BootstrapPageResponse response);