本文整理了Java中com.vaadin.ui.JavaScript.getCurrent()方法的一些代码示例，展示了JavaScript.getCurrent()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。JavaScript.getCurrent()方法的具体详情如下：
包路径：com.vaadin.ui.JavaScript
类名称：JavaScript
方法名：getCurrent

JavaScript.getCurrent介绍

[英]Get the JavaScript object for the current Page, or null if there is no current page.
[中]获取当前页面的JavaScript对象，如果没有当前页面，则为null。

代码示例

代码示例来源：origin: com.vaadin/vaadin-server

/**
 * Executes the given JavaScript code in the browser.
 *
 * @param script
 *            The JavaScript code to run.
 */
public static void eval(String script) {
  getCurrent().execute(script);
}

代码示例来源：origin: viritin/viritin

public static void setCookie(String key, String value, String path) {
  JavaScript.getCurrent().execute(String.format(
      "document.cookie = \"%s=%s; path=%s\";", key, value, path
  ));
}

代码示例来源：origin: com.bsb.common.vaadin/com.bsb.common.vaadin7.embed

public void buttonClick(Button.ClickEvent event) {
    // Stop the server in a separate thread.
    final Thread thread = new Thread(new Runnable() {
      public void run() {
        server.stop();
      }
    });
    // avoid that catalina's WebappClassLoader.clearReferencesThreads warns about the thread because it is
    // part of the web application being stopped.
    thread.setContextClassLoader(null);
    thread.start();
    // Close the browser tab
    JavaScript.getCurrent().execute("close();");
  }
});

代码示例来源：origin: viritin/viritin

public static void detectCookieValue(String key, final Callback callback) {
  final String callbackid = "viritincookiecb"+UUID.randomUUID().toString().substring(0,8);
  JavaScript.getCurrent().addFunction(callbackid, new JavaScriptFunction() {
    private static final long serialVersionUID = -3426072590182105863L;
    @Override
    public void call(JsonArray arguments) {
      JavaScript.getCurrent().removeFunction(callbackid);
      if(arguments.length() == 0) {
        callback.onValueDetected(null);
      } else {
        callback.onValueDetected(arguments.getString(0));
      }
    }
  });
  JavaScript.getCurrent().execute(String.format(
      "var nameEQ = \"%2$s=\";var ca = document.cookie.split(';');for(var i=0;i < ca.length;i++) {var c = ca[i];while (c.charAt(0)==' ') c = c.substring(1,c.length); if (c.indexOf(nameEQ) == 0) {%1$s( c.substring(nameEQ.length,c.length)); return;};} %1$s();",
      callbackid,key
  ));
}

代码示例来源：origin: viritin/viritin

public static void setCookie(String key, String value, String path, LocalDateTime expirationTime) {
  String expires = toCookieGMTDate(expirationTime);
  JavaScript.getCurrent().execute(String.format(
      "document.cookie = \"%s=%s; path=%s\"; Expires=%s\";", key, value, path, expires
  ));
}

代码示例来源：origin: viritin/viritin

public static void setCookie(String key, String value, LocalDateTime expirationTime) {
  String expires = toCookieGMTDate(expirationTime);
  JavaScript.getCurrent().execute(String.format(
    "document.cookie = \"%s=%s; expires=%s\";", key, value, expires
  ));
}

代码示例来源：origin: viritin/viritin

@Override
  public void call(JsonArray arguments) {
    JavaScript.getCurrent().removeFunction(callbackid);
    if(arguments.length() == 0) {
      callback.onValueDetected(null);
    } else {
      callback.onValueDetected(arguments.getString(0));
    }
  }
});